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Gurbuz ES, Guney Z, Kurgan S, Balci N, Serdar MA, Gunhan M. Oxidative Stress and FOXO-1 Relationship in Stage III Periodontitis. Clin Oral Investig 2024; 28:270. [PMID: 38658396 PMCID: PMC11043194 DOI: 10.1007/s00784-024-05670-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 04/21/2024] [Indexed: 04/26/2024]
Abstract
OBJECTIVES 8-Hydroxideoxyguanosine (8-OHdG) is a marker of oxidative stress, and Forkhead Box-O1 (FOXO1) is a transcription factor and signaling integrator in cell and tissue homeostasis. This study aims to determine FOXO1 and 8-OHdG levels in serum and saliva samples of periodontitis patients and to evaluate their relationship with clinical periodontal parameters. MATERIALS AND METHODS Twenty healthy individuals, twenty generalized Stage III Grade B periodontitis patients, and nineteen generalized Stage III Grade C periodontitis patients were included in the study. Clinical periodontal parameters (plaque index (PI), probing depth (PD), bleeding on probing (BOP), and clinical attachment level (CAL)) were recorded. Salivary and serum 8-OHdG and FOX-O1 levels were analyzed by enzyme-linked immunosorbent assay (ELISA). RESULTS Clinical periodontal parameters showed a statistically significant increase in periodontitis groups compared to the control group (p < 0.05). 8-OHdG salivary levels were significantly higher in both periodontitis groups compared to the control group. The salivary FOXO1 levels were significantly lower in both periodontitis groups compared to the control group. Salivary FOXO1 level had a low-grade negative correlation with BOP and salivary 8-OHdG level. CONCLUSIONS While reactive oxygen species increase in periodontal inflammation, low expression of FOXO1, an important transcription factor for antioxidant enzymes, supports that this molecule plays a vital role in tissue destruction, and FOXO1 can be seen as a potential immune modulator. CLINICAL RELEVANCE The role of FOXO1 in supporting antioxidant defense may suggest that FOXO1 is a candidate target for periodontitis treatment.
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Affiliation(s)
- Elif Selin Gurbuz
- Faculty of Dentistry Department of Periodontology, Ankara University, Ankara, Turkey
- Graduate School of Health Science, Ankara University, Ankara, Turkey
| | - Zeliha Guney
- Faculty of Dentistry Department of Periodontology, Ankara Medipol University, Ankara, Turkey.
| | - Sivge Kurgan
- Faculty of Dentistry Department of Periodontology, Ankara University, Ankara, Turkey
| | - Nur Balci
- Faculty of Dentistry Department of Periodontology, İstanbul Medipol University, Ankara, Turkey
| | | | - Meral Gunhan
- Faculty of Dentistry Department of Periodontology, Ankara University, Ankara, Turkey
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Song S, Gao Y, Feng S, Cheng Z, Huang H, Xue J, Zhang T, Sun H. Widespread occurrence of two typical N, N'-substituted p-phenylenediamines and their quinones in humans: Association with oxidative stress and liver damage. J Hazard Mater 2024; 468:133835. [PMID: 38394895 DOI: 10.1016/j.jhazmat.2024.133835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 02/11/2024] [Accepted: 02/17/2024] [Indexed: 02/25/2024]
Abstract
While N, N'-substituted p-phenylenediamines (PPDs) and their quinone derivatives (PPDQs) have been widely detected in the environment, there is currently limited data on their occurrence in humans. In this study, we conducted the first serum analysis of two PPDs and PPDQs in the healthy and secondary nonalcoholic fatty liver disease (S-NAFLD) cohorts in South China. The concentrations of four oxidative stress biomarkers (OSBs), namely, 8-iso-prostaglandin F2α (8-PGF2α), 11β-prostaglandin F2α (11-PGF2α), 15(R)-prostaglandin F2α (15-PGF2α), and 8-hydroxy-2'-deoxyguanosine in serum samples were also measured. Results showed that N-(1,3-dimethybutyl)-N'-phenyl-p-phenylenediamine (6PPD) quinone was the predominant target analytes both in the healthy and S-NAFLD cohorts, with the median concentrations of 0.13 and 0.20 ng/mL, respectively. Significant (p < 0.05) and positive correlations were found between 6PPD concentration and 8-PGF2α, 11-PGF2α, and 15-PGF2α in both the healthy and S-NAFLD cohorts, indicating that 6PPD may be associated with lipid oxidative damage. In addition, concentrations of 6PPD in serum were associated significantly linked with total bilirubin (β = 0.180 μmol/L, 95%CI: 0.036-0.396) and direct bilirubin (DBIL, β = 0.321 μmol/L, 95%CI: 0.035-0.677) related to hepatotoxicity. Furthermore, 8-PGF2α, 11-PGF2α, and 15-PGF2α mediated 17.1%, 24.5%, and 16.6% of 6PPD-associated DBIL elevations, respectively. Conclusively, this study provides novel insights into human exposure to and hepatotoxicity assessment of PPDs and PPDQs.
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Affiliation(s)
- Shiming Song
- School of Chemistry and Environment, Jiaying University, Mei Zhou 514015, China; School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Yanxia Gao
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Shuai Feng
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Zhipeng Cheng
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
| | - Haibao Huang
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Jingchuan Xue
- Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Tao Zhang
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
| | - Hongwen Sun
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
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Dai Q, Ma Y, Liu C, Zhao R, Chen Q, Chen W, Wang X, Jiang X, Li S. Association of 8-hydroxy-2'-deoxyguanosine with motoric cognitive risk in elderly Chinese people: RUGAO longevity and aging cross-sectional study. BMC Geriatr 2024; 24:331. [PMID: 38605326 PMCID: PMC11007879 DOI: 10.1186/s12877-024-04943-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 04/03/2024] [Indexed: 04/13/2024] Open
Abstract
BACKGROUND Motor cognitive risk syndrome (MCR) represents a critical pre-dementia and disability state characterized by a combination of objectively measured slow walking speed and subjective memory complaints (SMCs). This study aims to identify risk factors for MCR and investigate the relationship between plasma levels of 8-hydroxy-2'-deoxyguanosine (8-OHdG) and MCR among Chinese community-dwelling elderly populations. METHODS A total of 1312 participants were involved in this study based on the data of the Rugao Longevity and Aging Study (RuLAS). The MCR was characterized by SMCs and slow walking speed. The SCCs were defined as a positive answer to the question 'Do you feel you have more problems with memory than most?' in a 15-item Geriatric Depression Scale. Slow walking speed was determined by one standard deviation or more below the mean value of the patient's age and gender group. The plasma of 8-OHdG were measured by a technician in the biochemistry laboratory of the Rugao People's Hospital during the morning of the survey. RESULTS The prevalence of MCR was found to be 7.9%. After adjusting for covariates, significant associations with MCR were observed in older age (OR 1.057; p = 0.018), history of cerebrovascular disease (OR 2.155; p = 0.010), and elevated 8-OHdG levels (OR 1.007; p = 0.003). CONCLUSIONS This study indicated the elevated plasma 8-OHdG is significantly associated with increased MCR risk in the elderly, suggesting its potential as a biomarker for early detection and intervention in MCR. This finding underscores the importance of monitoring oxidative DNA damage markers in predicting cognitive and motor function declines, offering new avenues for research and preventive strategies in aging populations.
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Affiliation(s)
- Qingqing Dai
- Department of Geriatrics, School of Clinical Medicines, Beijing Tsinghua Changgung Hospital, Tsinghua University, Beijing, China
| | - Yajun Ma
- Department of Neurology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Chang Liu
- Department of Geriatrics, School of Clinical Medicines, Beijing Tsinghua Changgung Hospital, Tsinghua University, Beijing, China
| | - Ruixue Zhao
- Department of Neurology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
- Department of Neurobiology, School of Basic Medical Science, Capital Medical University, Beijing, 100069, China
| | - Qi Chen
- Department of Geriatrics, School of Clinical Medicines, Beijing Tsinghua Changgung Hospital, Tsinghua University, Beijing, China
| | - Weijia Chen
- Department of Geriatrics, School of Clinical Medicines, Beijing Tsinghua Changgung Hospital, Tsinghua University, Beijing, China
| | - Xiaofeng Wang
- Human Phenome Institute and National Clinical Research Center for Aging and Medicine , Huashan Hospital, Fudan University, Shanghai, China
| | - Xiaoyan Jiang
- State Key Laboratory of Cardiology, Department of Pathology and Pathophysiology, School of Medicine, Tongji University, Shanghai, 200092, China.
| | - Shujuan Li
- Department of Neurology, FuWai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100037, China.
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Li X, Jiang N, Zhang J, Yao X, Liu W, Wang Q, Ding J, Hu Z, Zhu L, Wang J, Wang J. Soil health hazards of di(2-ethylhexyl) phthalate: New perspectives on earthworms from different ecological niches DNA damage, gut microbial disruption and soil enzyme changes. J Hazard Mater 2024; 467:133700. [PMID: 38325098 DOI: 10.1016/j.jhazmat.2024.133700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 01/20/2024] [Accepted: 01/31/2024] [Indexed: 02/09/2024]
Abstract
Di(2-ethylhexyl) phthalate (DEHP) is perceived an emerging threat to terrestrial ecosystem, however, clear and accurate studies to fully understander ecotoxicity and underlying mechanisms of DEHP on the soil fauna remain poorly understood. Therefore, this study conducted a microcosm experiment of two earthworm ecotypes to investigate the ecological hazards of DHEP from multiple perspectives. The results showed that DEHP significantly increased the 8-hydroxy-deoxyguanosine (8-OHdG) content both in Eisenia foetida (13.76-133.0%) and Metaphire guillelmi (11.01-49.12%), leading to intracellular DNA damage. Meanwhile, DEHP negatively affected the expression of functional genes (ATP-6, NADH1, COX), which may be detrimental to mitochondrial respiration and oxidative stress at the gene level. The two earthworm guts shared analogous dominant bacteria however, the incorporation of DEHP drastically suppressed the homogeneity and diversity of the gut microbes, which further disrupted the homeostasis of the gut microbial ecological network. The keystone species in the gut of E. foetida decreased under DEHP stress but increased in the gut of M. guillelmi. Moreover, DEHP presented detrimental effects on soil enzyme activity, which is mainly associated with pollutant levels and earthworm activity. Collectively, the findings expand the understanding of soil ecological health and reveal the underlying mechanisms of the potential exposure risk to DEHP.
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Affiliation(s)
- Xianxu Li
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271000, PR China
| | - Nan Jiang
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271000, PR China; College of Natural Resources and Environment, Northwest A& F University, Yangling 712000, PR China
| | - Juan Zhang
- Shandong Institute for Product Quality Inspection, Jin'an 250100, PR China
| | - Xiangfeng Yao
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271000, PR China
| | - Wenrong Liu
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271000, PR China
| | - Qian Wang
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271000, PR China
| | - Jia Ding
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271000, PR China
| | - Zhuran Hu
- Shandong Green and Blue Bio-technology Co. Ltd, Tai'an 271000, PR China
| | - Lusheng Zhu
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271000, PR China
| | - Jinhua Wang
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271000, PR China
| | - Jun Wang
- College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271000, PR China.
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5
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Hacioglu C, Kar F, Ozbayer C, Gundogdu AC. Ex vivo investigation of betaine and boric acid function as preprotective agents on rat synaptosomes to be treated with Aβ (1-42). Environ Toxicol 2024; 39:2138-2149. [PMID: 38108610 DOI: 10.1002/tox.24098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 08/31/2023] [Accepted: 12/01/2023] [Indexed: 12/19/2023]
Abstract
Recent evidence suggests that ferroptosis, an iron-dependent cell death process, may be involved in Alzheimer's disease (AD) pathology. The study evaluated the therapeutic potential of betaine and boric acid (BA) pretreatment administered to rats for 21 days in AD. Then, the rats were sacrificed, and morphological and biochemical analyses were performed in brain tissues. Next, an ex vivo AD model was created by applying amyloid-β (Aβ1-42) to synaptosomes isolated from the brain tissues. Synaptosomes were analyzed with micrograph images, and protein and mRNA levels of ferroptotic markers were determined. Betaine and BA pretreatments did not cause any morphological and biochemical differences in the brain tissue. However, Aβ (1-42) administration in synaptosomes increased the levels of acyl-CoA synthetase long chain family member-4 (ACSL4), transferrin receptor-1 protein (TfR1), malondialdehyde (MDA), and 8-hydroxydeoxyguanosine (8-OHdG) and decreased the levels glutathione peroxidase-4 (GPx4) and glutathione (GSH). Moreover, ACSL4, GPx4, and TfR1 mRNA and protein levels were similar to the ELISA results. In contrast, betaine and BA pretreatments decreased the levels of ACSL4, TfR1, MDA, and 8-OHdG in synaptosomes incubated with Aβ1-42, while promoting increased levels of GPx4 and GSH. In addition, betaine and BA pretreatments completely reversed ACSL4, GPx4, and TfR1 mRNA and protein levels. Therefore, betaine and BA pretreatments may contribute to the prevention of neurodegenerative damage by supporting antiferroptotic activities.
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Affiliation(s)
- Ceyhan Hacioglu
- Faculty of Pharmacy, Department of Biochemistry, Düzce University, Düzce, Turkey
- Faculty of Medicine, Department of Medical Biochemistry, Düzce University, Düzce, Turkey
| | - Fatih Kar
- Faculty of Medicine, Department of Medical Biochemistry, Kütahya Health Sciences University, Kütahya, Turkey
| | - Cansu Ozbayer
- Faculty of Medicine, Department of Medical Biology, Kütahya Health Sciences University, Kütahya, Turkey
| | - Ayse Cakir Gundogdu
- Faculty of Medicine Department of Histology and Embryology, Kütahya Health Sciences University, Kütahya, Turkey
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Mihanfar A, Asghari F, Majidinia M. Ataxia telangiectasia and Rad3-related (ATR) inhibition by VE-822 potently reversed 5-flourouracil resistance in colorectal cancer cells through targeting DNA damage response. Mol Biol Rep 2024; 51:474. [PMID: 38553623 DOI: 10.1007/s11033-024-09431-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 03/08/2024] [Indexed: 04/02/2024]
Abstract
BACKGROUND VE-822 is a novel inhibitor of ATR, a key kinase involved in the DNA damage response pathway. The role of ATR inhibition in reversing drug resistance in various cancer types has been investigated. Therefore, this study investigated the effects of ATR inhibition by VE-822 on reversing 5-fluorouracil (5-FU) resistance in colorectal cancer cell line (Caco-2). METHODS Caco-2 and 5-FU resistance Caco-2 (Caco-2/5-FU) cells were treated with 5-FU and VE-822, alone and in combination. Cell proliferation and viability were assessed by MTT assay and Trypan Blue staining. P-glycoprotein (P-gp) and multidrug resistance-associated protein 1 (MRP1) activities were measured by Rhodamine123 accumulation and uptake assay. The mRNA levels of P-gp, MRP-1, ataxia telangiectasia and Rad3-related (ATR) and checkpoint kinase 1 (CHK1) were measured by qRT-PCR. Western blot was used to measure the protein levels of P-gp, MRP-1, γ-H2AX, ATR and CHK1 in cells. 8-Oxo-2'-deoxyguanosine (8-oxo-dG) levels were determined via ELISA. Apoptosis was evaluated by ELISA death assay, DAPI staining and lactate dehydrogenase (LDH) assay. RESULTS The Caco-2/5-FU cells showed lower levels of 5-FU mediated proliferation inhibition in comparison to Caco-2 cells. VE-822 decreased the IC50 value of 5-FU on resistant cells. In addition, the expression levels and activity of P-gp and MRP-1 were significantly decreased in resistant cells treated with VE-822 (P < 0.05). The combination of 5-FU and VE-822 increased apoptosis in Caco-2/5-FU cells by downregulating CHK1 and ATR and upregulating γ-H2AX and 8-oxo-dG. CONCLUSION The simultaneous treatment of resistant colorectal cancer cells with 5-FU and ATR inhibitor, VE-822, was demonstrated to be effective in reversing drug resistance and potentiating 5-FU mediated anticancer effects via targeting DNA damage.
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Affiliation(s)
- Ainaz Mihanfar
- Solid Tumor Research Center, Cellular and Molecular Medicine Institute, Urmia University of Medical Sciences, Urmia, Iran
| | - Faezeh Asghari
- Immunology Department, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Maryam Majidinia
- Solid Tumor Research Center, Cellular and Molecular Medicine Institute, Urmia University of Medical Sciences, Urmia, Iran.
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7
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Tomar R, Li S, Egli M, Stone MP. Replication Bypass of the N-(2-Deoxy-d-erythro-pentofuranosyl)-urea DNA Lesion by Human DNA Polymerase η. Biochemistry 2024; 63:754-766. [PMID: 38413007 PMCID: PMC10956437 DOI: 10.1021/acs.biochem.3c00569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/26/2023] [Accepted: 12/27/2023] [Indexed: 02/29/2024]
Abstract
Urea lesions in DNA arise from thymine glycol (Tg) or 8-oxo-dG; their genotoxicity is thought to arise in part due to their potential to accommodate the insertion of all four dNTPs during error-prone replication. Replication bypass with human DNA polymerase η (hPol η) confirmed that all four dNTPs were inserted opposite urea lesions but with purines exhibiting greater incorporation efficiency. X-ray crystal structures of ternary replication bypass complexes in the presence of Mg2+ ions with incoming dNTP analogs dAMPnPP, dCMPnPP, dGMPnPP, and dTMPnPP bound opposite urea lesions (hPol η·DNA·dNMPnPP complexes) revealed all were accommodated by hPol η. In each, the Watson-Crick face of the dNMPnPP was paired with the urea lesion, exploiting the ability of the amine and carbonyl groups of the urea to act as H-bond donors or acceptors, respectively. With incoming dAMPnPP or dGMPnPP, the distance between the imino nitrogen of urea and the N9 atoms of incoming dNMPnPP approximated the canonical distance of 9 Å in B-DNA. With incoming dCMPnPP or dTMPnPP, the corresponding distance of about 7 Å was less ideal. Improved base-stacking interactions were also observed with incoming purines vs pyrimidines. Nevertheless, in each instance, the α-phosphate of incoming dNMPnPPs was close to the 3'-hydroxyl group of the primer terminus, consistent with the catalysis of nucleotidyl transfer and the observation that all four nucleotides could be inserted opposite urea lesions. Preferential insertion of purines by hPol η may explain, in part, why the urea-directed spectrum of mutations arising from Tg vs 8-oxo-dG lesions differs.
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Affiliation(s)
- Rachana Tomar
- Department
of Chemistry, Vanderbilt Ingram Cancer Center, and Vanderbilt Center
for Structural Biology, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Songlin Li
- Department
of Chemistry, Vanderbilt Ingram Cancer Center, and Vanderbilt Center
for Structural Biology, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Martin Egli
- Department
of Biochemistry, School of Medicine, Vanderbilt Ingram Cancer Center,
and Vanderbilt Center for Structural Biology, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Michael P. Stone
- Department
of Chemistry, Vanderbilt Ingram Cancer Center, and Vanderbilt Center
for Structural Biology, Vanderbilt University, Nashville, Tennessee 37235, United States
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Gao S, Hou P, Oh J, Wang D, Greenberg MM. Molecular Mechanism of RNA Polymerase II Transcriptional Mutagenesis by the Epimerizable DNA Lesion, Fapy·dG. J Am Chem Soc 2024; 146:6274-6282. [PMID: 38393762 DOI: 10.1021/jacs.3c14476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2024]
Abstract
Oxidative DNA lesions cause significant detrimental effects on a living species. Two major DNA lesions resulting from dG oxidation, 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-OxodGuo) and formamidopyrimidine (Fapy·dG), are produced from a common chemical intermediate. Fapy·dG is formed in comparable yields under oxygen-deficient conditions. Replicative bypass of Fapy·dG in human cells is more mutagenic than that of 8-OxodGuo. Despite the biological importance of transcriptional mutagenesis, there are no reports of the effects of Fapy·dG on RNA polymerase II (Pol II) activity. Here we perform comprehensive kinetic studies to investigate the impact of Fapy·dG on three key transcriptional fidelity checkpoint steps by Pol II: insertion, extension, and proofreading steps. The ratios of error-free versus error-prone incorporation opposite Fapy·dG are significantly reduced in comparison with undamaged dG. Similarly, Fapy·dG:A mispair is extended with comparable efficiency as that of the error-free, Fapy·dG:C base pair. The α- and β-configurational isomers of Fapy·dG have distinct effects on Pol II insertion and extension. Pol II can preferentially cleave error-prone products by proofreading. To further understand the structural basis of transcription processing of Fapy·dG, five different structures were solved, including Fapy·dG template-loading state (apo), error-free cytidine triphosphate (CTP) binding state (prechemistry), error-prone ATP binding state (prechemistry), error-free Fapy·dG:C product state (postchemistry), and error-prone Fapy·dG:A product state (postchemistry), revealing distinctive nucleotide binding and product states. Taken together, our study provides a comprehensive mechanistic framework for better understanding how Fapy·dG lesions impact transcription and subsequent pathological consequences.
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Affiliation(s)
- Shijun Gao
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles Street, Baltimore, Maryland 21218, United States
| | - Peini Hou
- Division of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
| | - Juntaek Oh
- Division of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
- Department of Regulatory Science, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Dong Wang
- Division of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
- Department of Cellular and Molecular Medicine, School of Medicine, University of California, San Diego, La Jolla, California 92093, United States
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
| | - Marc M Greenberg
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles Street, Baltimore, Maryland 21218, United States
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Rottmann M, Yoo S, Pfenniger A, Mikhailov A, Benefield B, Johnson DA, Zhang W, Ghosh AK, Kim D, Passman R, Knight BP, Lee DC, Arora R. Use of Atrial Fibrillation Electrograms and T1/T2 Magnetic Resonance Imaging to Define the Progressive Nature of Molecular and Structural Remodeling: A New Paradigm Underlying the Emergence of Persistent Atrial Fibrillation. J Am Heart Assoc 2024; 13:e032514. [PMID: 37930082 PMCID: PMC10944076 DOI: 10.1161/jaha.123.032514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 10/23/2023] [Indexed: 11/07/2023]
Abstract
BACKGROUND The temporal progression states of the molecular and structural substrate in atrial fibrillation (AF) are not well understood. We hypothesized that these can be detected by AF electrograms and magnetic resonance imaging parametric mapping. METHODS AND RESULTS AF was induced in 43 dogs (25-35 kg, ≥1 year) by rapid atrial pacing (RAP) (3-33 weeks, 600 beats/min), and 4 controls were used. We performed high-resolution epicardial mapping (UnEmap, 6 atrial regions, both atria, 130 electrodes, distance 2.5 mm) and analyzed electrogram cycle length, dominant frequency, organization index, and peak-to-peak bipolar voltage. Implantable telemetry recordings were used to quantify parasympathetic nerve activity over RAP time. Magnetic resonance imaging native T1, postcontrast T1, T2 mapping, and extracellular volume fraction were assessed (1.5T, Siemens) at baseline and AF. In explanted atrial tissue, DNA oxidative damage (8-hydroxy-2'-deoxyguanosine staining) and percentage of fibrofatty tissue were quantified. Cycle length and organization index decreased (R=0.5, P<0.05; and R=0.5, P<0.05; respectively), and dominant frequency increased (R=0.3, P n.s.) until 80 days of RAP but not thereafter. In contrast, voltage continued to decrease throughout the duration of RAP (R=0.6, P<0.05). Parasympathetic nerve activity increased following RAP and plateaued at 80 days. Magnetic resonance imaging native T1 and T2 times increased with RAP days (R=0.5, P<0.05; R=0.6, P<0.05) in the posterior left atrium throughout RAP. Increased RAP days correlated with increasing 8-hydroxy-2'-deoxyguanosine levels and with fibrosis percentage (R=0.5, P<0.05 for both). CONCLUSIONS A combination of AF electrogram characteristics and T1/T2 magnetic resonance imaging can detect early-stage AF remodeling (autonomic remodeling, oxidative stress) and advanced AF remodeling due to oxidative stress and fibrosis.
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Affiliation(s)
- Markus Rottmann
- Feinberg Cardiovascular and Renal Research InstituteNorthwestern University Feinberg School of MedicineChicagoILUSA
| | - Shin Yoo
- Feinberg Cardiovascular and Renal Research InstituteNorthwestern University Feinberg School of MedicineChicagoILUSA
| | - Anna Pfenniger
- Feinberg Cardiovascular and Renal Research InstituteNorthwestern University Feinberg School of MedicineChicagoILUSA
- Division of CardiologyNorthwestern University Feinberg School of MedicineChicagoILUSA
| | - Aleksei Mikhailov
- Feinberg Cardiovascular and Renal Research InstituteNorthwestern University Feinberg School of MedicineChicagoILUSA
| | - Brandon Benefield
- Feinberg Cardiovascular and Renal Research InstituteNorthwestern University Feinberg School of MedicineChicagoILUSA
| | - David A. Johnson
- Feinberg Cardiovascular and Renal Research InstituteNorthwestern University Feinberg School of MedicineChicagoILUSA
| | - Wenwei Zhang
- Feinberg Cardiovascular and Renal Research InstituteNorthwestern University Feinberg School of MedicineChicagoILUSA
| | - Asish K. Ghosh
- Feinberg Cardiovascular and Renal Research InstituteNorthwestern University Feinberg School of MedicineChicagoILUSA
| | - Daniel Kim
- Department of RadiologyNorthwestern University Feinberg School of MedicineChicagoILUSA
| | - Rod Passman
- Feinberg Cardiovascular and Renal Research InstituteNorthwestern University Feinberg School of MedicineChicagoILUSA
- Division of CardiologyNorthwestern University Feinberg School of MedicineChicagoILUSA
| | - Bradley P. Knight
- Feinberg Cardiovascular and Renal Research InstituteNorthwestern University Feinberg School of MedicineChicagoILUSA
- Division of CardiologyNorthwestern University Feinberg School of MedicineChicagoILUSA
| | - Daniel C. Lee
- Feinberg Cardiovascular and Renal Research InstituteNorthwestern University Feinberg School of MedicineChicagoILUSA
- Division of CardiologyNorthwestern University Feinberg School of MedicineChicagoILUSA
- Department of RadiologyNorthwestern University Feinberg School of MedicineChicagoILUSA
| | - Rishi Arora
- Feinberg Cardiovascular and Renal Research InstituteNorthwestern University Feinberg School of MedicineChicagoILUSA
- Division of CardiologyNorthwestern University Feinberg School of MedicineChicagoILUSA
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10
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Palmisano M, Kulp J, Bender S, Stefanovski D, Robinson M, Johnson A. Measurement of 8-hydroxy-2'-deoxyguanosine in serum and cerebrospinal fluid of horses with neuroaxonal degeneration and other causes of proprioceptive ataxia. J Vet Intern Med 2024; 38:1207-1213. [PMID: 38205913 PMCID: PMC10937501 DOI: 10.1111/jvim.16988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Accepted: 12/20/2023] [Indexed: 01/12/2024] Open
Abstract
BACKGROUND Eight-hydroxy-2'-deoxyguanosine (8-OHdG), a biomarker of oxidative damage evaluated in human neurodegenerative disease, has potential to correlate with postmortem diagnosis of neuroaxonal dystrophy/degenerative myeloencephalopathy (NAD/DM) in horses. HYPOTHESIS We hypothesized that 8-OHdG will be higher in CSF and serum from NAD/DM horses compared with horses with other neurologic diseases (CVSM, EPM) and a control group of neurologically normal horses. We also hypothesized that 8-OHdG will be higher in CSF compared with serum from NAD/DM horses. ANIMALS Fifty client-owned horses with postmortem diagnoses: 20 NAD/DM, 10 CVSM, 10 EPM, and 10 control horses. Serum and CSF samples were obtained between November 2010 and March 2022. METHODS Case-control study using biobanked samples was performed and commercial competitive ELISA kit (Highly Sensitive 8-OHdG Check ELISA) utilized. Concentration of 8-OHdG was quantitated in both CSF and serum and compared between groups. RESULTS No correlation was established between the measures of 8-OHdG in serum and CSF and group. CSF median [8-OHdG] for NAD/DM was 169.9 pg/mL (IQR25-75 : 67.18-210.6), CVSM 157.1 pg/mL (IQR25-75 : 132.1-229.1), EPM 131.4 pg/mL (IQR25-75 : 102.1-193.2), and control 149.8 pg/mL (IQR25-75 : 113.3-196.4). Serum median [8-OHdG] for NAD/DM was 130 pg/mL (IQR25-75 : 51.73-157.2), CVSM 125.8 pg/mL (IQR25-75 : 62.8-170.8), EPM 120.6 pg/mL (IQR25-75 : 87.23-229.7), and control 157.6 pg/mL (IQR25-75 : 97.15-245.6). Poisson regression analysis showed no difference established once confounding variables were considered. CONCLUSIONS Eight-OHdG did not aid in antemortem diagnosis of NAD/DM in this cohort of horses. At the time of diagnosis horses with NAD/DM do not have ongoing oxidative stress.
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Affiliation(s)
- Megan Palmisano
- Department of Clinical Studies, New Bolton CenterUniversity of Pennsylvania School of Veterinary MedicineKennett SquarePennsylvaniaUSA
| | - Jeaneen Kulp
- Department of Clinical Studies, New Bolton CenterUniversity of Pennsylvania School of Veterinary MedicineKennett SquarePennsylvaniaUSA
| | - Susan Bender
- Department of Pathobiology, New Bolton CenterUniversity of Pennsylvania School of Veterinary MedicineKennett SquarePennsylvaniaUSA
| | - Darko Stefanovski
- Department of Clinical Studies, New Bolton CenterUniversity of Pennsylvania School of Veterinary MedicineKennett SquarePennsylvaniaUSA
| | - Mary Robinson
- Department of Clinical Studies, New Bolton CenterUniversity of Pennsylvania School of Veterinary MedicineKennett SquarePennsylvaniaUSA
| | - Amy Johnson
- Department of Clinical Studies, New Bolton CenterUniversity of Pennsylvania School of Veterinary MedicineKennett SquarePennsylvaniaUSA
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11
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Benfato ID, Quintanilha ACS, Henrique JS, Souza MA, Dos Anjos Rosário B, Beserra-Filho JIA, Ribeiro AM, Le Sueur Maluf L, de Oliveira CAM. Long-term calorie restriction prevented memory impairment in middle-aged male mice and increased a marker of DNA oxidative stress in hippocampal dentate gyrus. Neurobiol Learn Mem 2024; 209:107902. [PMID: 38336097 DOI: 10.1016/j.nlm.2024.107902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 01/31/2024] [Accepted: 02/05/2024] [Indexed: 02/12/2024]
Abstract
Calorie restriction (CR) is a non-invasive and economic approachknown to increase healthspan and life expectancy, through a decrease in oxidative stress, an increase in neurotrophins, among other benefits. However, it is not clear whether its benefit could be noted earlier, as at the beginning of middle-age. Hence, weaimed to determine whether six months of long-term CR, from early adulthood to the beginning of middle age (10 months of age) could positively affect cognitive, neurochemical, and behavioral parameters. Male C57BL6/J mice were randomly distributed into Young Control (YC, ad libitum food), Old Control (OC, ad libitum food), and Old Restricted (OR, 30 % of caloric restriction) groups. To analyze the cognitive and behavioral aspects, the novel object recognition task (NOR), open field, and elevated plus maze tests were performed. In addition, immunohistochemistry targetingΔFosB (neuronal activity), brain-derived neurotrophic factor (BDNF) and the DNA oxidative damage (8OHdG) in hippocampal subfields CA1, CA2, CA3, and dentate gyrus (DG), and in basolateral amygdala and striatum were performed. Our results showed that long-term CR prevented short-term memory impairment related to aging and increased 8OHdG in hippocampal DG. BDNF was not involved in the effects of either age or CR on memory at middle-age, as it increased in CA3 of the OC group but was not altered in OR. Regarding anxiety-type behavior, no parameter showed differences between the groups. In conclusion, while the effects of long-term CR on anxiety-type behavior were inconclusive, it mitigated the memory deficit related to aging, which was accompanied by an increase in hippocampal 8OHdG in DG. Future studies should investigate whether the benefits of CR would remain if the restriction were interrupted after this long-term protocol.
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Affiliation(s)
- Izabelle Dias Benfato
- Programa de Pós-Graduação Interdisciplinar em Ciências da Saúde, Universidade Federal de São Paulo (UNIFESP), Brasil
| | | | - Jessica Salles Henrique
- Programa de Pós-Graduação em Neurologia e Neurociências, Universidade Federal de São Paulo (UNIFESP), Brasil
| | - Melyssa Alves Souza
- Programa de Pós-Graduação Interdisciplinar em Ciências da Saúde, Universidade Federal de São Paulo (UNIFESP), Brasil
| | | | | | - Alessandra Mussi Ribeiro
- Departamento de Biociências, Instituto de Saúde e Sociedade, Universidade Federal de São Paulo (UNIFESP), Brasil
| | - Luciana Le Sueur Maluf
- Departamento de Biociências, Instituto de Saúde e Sociedade, Universidade Federal de São Paulo (UNIFESP), Brasil
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12
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Khanifar H, Mahmoodnia L. Correlation Between the 8-hydroxy-2'-deoxyguanosine Level in the Peritoneal Solution of Patients Undergoing Peritoneal Dialysis and the Peritoneal Equilibration Test, Kt/V, Ferritin, and Albumin Levels. Iran J Kidney Dis 2024; 18:118-123. [PMID: 38660699 DOI: 10.5254/fte08z03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Indexed: 04/26/2024]
Abstract
INTRODUCTION Peritoneal dialysis (PD) is an effective treatment modality for advanced kidney failure, offering patients a significant degree of independence. However, the long-term use of PD is limited due to the degeneration of the peritoneal membrane, resulting in reduced dialysis adequacy. Evaluating the peritoneal membrane condition in patients with advanced kidney failure who are undergoing PD is challenging with existing methods. Therefore, this study aimed to investigate the correlation between 8-hydroxy-2'-deoxyguanosine (8OHDG) levels in the peritoneal solution of patients undergoing PD and various factors, such as peritoneal equilibration test (PET), dialysis adequacy (Kt/V), underlying diseases, serum ferritin, and albumin levels. 8OHDG is a sensitive marker of oxidative stress caused by DNA damage. METHODS A total of 56 patients were included in this cross-sectional study. Five milliliters of PD fluid were collected from the patients, and 8-OHdG levels were measured using ELISA method. Then, they were compared with PET, Kt/V, albumin, and ferritin markers in the patients' files, and the results were analyzed by statistical tests. RESULTS The study examined the correlation between 8OHDG and other markers. It was found that this index had significant associations with PET and underlying HTN (P < .05), whereas no significant associations were identified with the other markers. CONCLUSION The results of the present study demonstrate that the level of 8OHDG, as one of the oxidative stress markers, could be used to evaluate the function of the peritoneum in patients undergoing PD. DOI: 10.52547/ijkd.7654.
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Affiliation(s)
- Hadi Khanifar
- Department of Internal Medicine, Shahre-kord University of Medical Sciences, Shahre-kord, Iran
| | - Leila Mahmoodnia
- Department of Internal Medicine, Shahre-kord University of Medical Sciences, Shahre-kord, Iran
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13
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Hazukova R, Rezacova M, Pleskot M, Zadak Z, Cermakova E, Taborsky M. DNA damage and arterial hypertension. A systematic review and meta-analysis. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2024; 168:15-24. [PMID: 37916467 DOI: 10.5507/bp.2023.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Accepted: 10/20/2023] [Indexed: 11/03/2023] Open
Abstract
Oxidative DNA damage markers (8OHdG, comet assay, gammaH2AX) are becoming widely used in clinical cardiology research. To conduct this review of DNA damage in relation to hypertension in humans, we used databases (e.g. PubMed, Web of Science) to search for English-language publications up to June 30, 2022 and the terms: DNA damage, comet assay, gammaH2AX, 8OHdG, strand breaks, and arterial hypertension. Exclusion criteria were: children, absence of relevant controls, extra-arterial hypertensive issues, animal, cell lines. From a total of 79526, 15 human studies were selected. A total of 902 hypertensive patients (pts): (comet: N=418 pts; 8OHdG: N=484 pts) and 587 controls (comet: N=203; 8OHdG: N=384) were included. DNA damage was significantly higher in hypertensive pts than healthy controls (comet 26.6±11.0 vs 11.7±4.07 arbitrary units /A.U./; P<0.05 and="" 8ohdg="" 13="" 1="" 4="" 12="" vs="" 6="" 97="" 2="" 67="" ng="" mg="" creatinine="" i=""> P<0.05) confirmed with meta-analysis for both. Greater DNA damage was observed in more adverse cases (concentric cardiac hypertrophy 43.4±15.4 vs 15.6±5.5; sustained/untreated hypertension 31.4±12.1 vs 14.2±5/35.0±5.0 vs 25.0 ±5.0; non-dippers 39.2±15.5 vs 29.4±11.1 A.U.; elderly 14.9±4.5 vs 9.3±4.1 ng/mg creatinine; without carvedilol 9.1±4.2 vs 5.7±3.9; with coronary heart disease 0.5±0.1 vs 0.2±0.1 ng/mL) (P<0.05) confirmed with meta-analysis. DNA damage correlated strongly positively with serum glycosylated haemoglobin (r=0.670; P<0.05) and negatively with total antioxidant status (r=-0.670 to -0.933; P<0.05). This is the first systematic review with meta-analysis showing that oxidative DNA damage was increased in humans with arterial hypertension compared to controls.
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Affiliation(s)
- Radka Hazukova
- Department of Internal Medicine I - Cardiology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacky University Olomouc, Czech Republic
- Department of Internal Medicine, Pardubice Regional Hospital, a.s., Pardubice, Czech Republic
- Department of Cardiology and Internal Medicine (Profi-Kardio, s.r.o.), Horice v Podkrkonosi, Czech Republic
| | - Martina Rezacova
- Department of Medical Biochemistry, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Miloslav Pleskot
- Department of Cardiology and Internal Medicine (Profi-Kardio, s.r.o.), Horice v Podkrkonosi, Czech Republic
| | - Zdenek Zadak
- Departments of Research and Development, University Hospital, Hradec Kralove, Czech Republic
| | - Eva Cermakova
- Department of Medical Biophysics, Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Milos Taborsky
- Department of Internal Medicine I - Cardiology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacky University Olomouc, Czech Republic
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14
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Ito A, Kitabatake S, Furuichi W, Takase N, Nakahara T, Akiyama T, Yoshida S, Kusano Y, Furusawa Y, Hirayama R. LET Dependence of 8-Hydroxy-2'-deoxyguanosine (8-OHdG) Generation in Mammalian Cells under Air-Saturated and Hypoxic Conditions: A Possible Experimental Approach to the Mechanism of the Decreasing Oxygen Effect in the High-LET Region. Radiat Res 2024; 201:189-196. [PMID: 38294870 DOI: 10.1667/rade-23-00046.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 01/22/2024] [Indexed: 02/01/2024]
Abstract
One of the most distinguished features in biological effects of heavy ions would be the decrease of oxygen effect in the high-LET region. This feature has been referred to as the radiobiological basis for the control of hypoxic fraction in cancer radiotherapy. However, mechanisms to explain this phenomenon have not been fully understood. One of the explanations was given by the oxygen in the track hypothesis, which proposes that oxygen is produced along ion tracks even in the hypoxic irradiation condition. In the present study, we designed an experimental approach to support this hypothesis by using 8-hydroxy-2'-deoxyguanosine (8-OHdG) as DNA damage requiring oxygen to produce. The LET dependence of 8-OHdG under hypoxic condition revealed that with increasing LET 8-OHdG yield seems to increase, despite that the yield of OH radical, which is also required for the production of 8-OHdG, decreases in the high-LET region. This result is consistent with the explanation that the local generation of oxygen along ion tracks contributes to the increase of 8-OHdG yield.
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Affiliation(s)
- A Ito
- Department of Nuclear Engineering, School of Engineering, Tokai University, Kanagawa, Japan
| | - S Kitabatake
- Department of Nuclear Engineering, School of Engineering, Tokai University, Kanagawa, Japan
| | - W Furuichi
- Department of Nuclear Engineering, School of Engineering, Tokai University, Kanagawa, Japan
| | - N Takase
- Department of Nuclear Engineering, School of Engineering, Tokai University, Kanagawa, Japan
| | - T Nakahara
- Department of Nuclear Engineering, School of Engineering, Tokai University, Kanagawa, Japan
| | - T Akiyama
- Department of Nuclear Engineering, School of Engineering, Tokai University, Kanagawa, Japan
| | - S Yoshida
- Department of Nuclear Engineering, School of Engineering, Tokai University, Kanagawa, Japan
| | - Y Kusano
- Department of Nuclear Engineering, School of Engineering, Tokai University, Kanagawa, Japan
- Section of Medical Physics and Engineering, Kanagawa Cancer Center, Kanagawa, Japan
| | - Y Furusawa
- Department of Charged Particle Therapy Research, Institute for Quantum Medical Science, National Institutes Quantum Science and Technology, Chiba, Japan
| | - R Hirayama
- Department of Charged Particle Therapy Research, Institute for Quantum Medical Science, National Institutes Quantum Science and Technology, Chiba, Japan
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15
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Chida T, Watanabe S, Ohta K, Noritake H, Ito M, Suzuki T, Suda T, Kawata K. Impact of amino acid substitutions in hepatitis C virus core region on the severe oxidative stress. Free Radic Biol Med 2024; 212:199-206. [PMID: 38103659 DOI: 10.1016/j.freeradbiomed.2023.12.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 12/08/2023] [Accepted: 12/11/2023] [Indexed: 12/19/2023]
Abstract
Hepatitis C virus (HCV) infection is a major cause of chronic liver disease, leading to liver steatosis, fibrosis, and hepatocellular carcinoma (HCC). Despite the accumulation of clinical data showing the impact of amino acid substitutions at positions 70 (R70Q/H) and/or 91 (L91M) in the HCV core protein in progressive liver diseases, including HCC, the underlying mechanisms have not been elucidated. We analyzed 72 liver biopsy specimens from patients with chronic HCV genotype 1b (HCV-1b) infection prior to antiviral treatment. Levels of 8-hydroxy-2'-deoxyguanosine (8-OHdG) and nuclear factor erythroid 2-related factor 2 (NRF2) in the nucleus were quantified using liver tissue immunohistochemistry. The effects of amino acid substitutions in the HCV core region on hepatocellular oxidative stress were investigated using wild-type or double-mutant (R70Q/H+L91M) HCV-1b core transfection and stable expression in human hepatoma HuH-7 cells. Overall, 24, 19, 11, and 18 patients had the wild-type, R70Q/H, L91M, and R70Q/H+L91M genotypes, respectively, in the HCV core. A significantly higher accumulation of hepatocellular 8-OHdG and a lower NRF2/8-OHdG ratio were observed in patients with R70Q/H+L91M than in those with the wild-type disease. Increased levels of intracellular superoxide and hydrogen peroxide in the cytoplasm and mitochondria, mRNA expression of enzymes generating oxidative stress, and nuclear expression of nicotinamide adenine dinucleotide phosphate oxidase 4 were augmented in cells treated with R70Q+L91M. HCV core proteins harboring either or both substitutions of R70Q/H or L91M enhanced hepatocellular oxidative stress in vivo and in vitro. These amino acid substitutions may affect HCC development by enhancing hepatic oxidative stress in patients with chronic HCV-1b infection.
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Affiliation(s)
- Takeshi Chida
- Hepatology Division, Department of Internal Medicine II, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu, Shizuoka, 431-3192, Japan; Department of Regional Medical Care Support, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu, Shizuoka, 431-3192, Japan
| | - Shinya Watanabe
- Department of Gastroenterology, Shimada General Medical Center, 1200-5 Noda, Shimada, Shizuoka, 427-8502, Japan
| | - Kazuyoshi Ohta
- Hepatology Division, Department of Internal Medicine II, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu, Shizuoka, 431-3192, Japan
| | - Hidenao Noritake
- Hepatology Division, Department of Internal Medicine II, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu, Shizuoka, 431-3192, Japan
| | - Masahiko Ito
- Department of Microbiology & Immunology, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu, Shizuoka, 431-3192, Japan
| | - Tetsuro Suzuki
- Department of Microbiology & Immunology, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu, Shizuoka, 431-3192, Japan
| | - Takafumi Suda
- Hepatology Division, Department of Internal Medicine II, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu, Shizuoka, 431-3192, Japan
| | - Kazuhito Kawata
- Hepatology Division, Department of Internal Medicine II, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu, Shizuoka, 431-3192, Japan.
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16
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Zare M, Shoaei N, Karimian J, Nouri M, Zare S, Leilami K, Shateri Z, Sarbakhsh P, Eftekhari MH, Pourghassem Gargari B. Effect of a plant-based diet on oxidative stress biomarkers in male footballers. Sci Rep 2024; 14:3700. [PMID: 38355662 PMCID: PMC10866931 DOI: 10.1038/s41598-024-54198-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 02/09/2024] [Indexed: 02/16/2024] Open
Abstract
Proper nutrition plays a vital role in modulating oxidative status. There is an increasing popularity of plant-based dietary patterns among athletes. Therefore, the present study aimed to determine the plant-based diet index (PDI) score among male footballers and their non-athlete controls, as well as its relationship with oxidative biomarkers by evaluating the urinary excretion of F2alpha-isoprostane (F2a-IP) and 8-hydroxy-2'-deoxyguanosine (8-OHdG). A group of footballers (n = 45) and a healthy non-athlete group (n = 45) were selected. The two groups were matched based on body mass index (BMI) and age. The mean (standard deviation (SD)) age of the subjects was 22.88 (2.41) years, and their BMI was 22.08 (1.35) kg/m2. Anthropometric indices were evaluated, and fasting morning urine samples were analyzed to measure oxidative biomarkers. The PDI, unhealthy plant-based diet index (uPDI), and healthy plant-based diet index (hPDI) were calculated using valid food frequency questionnaire data. Generalized estimating equation models were used for all analyses. Compared to the non-athlete group, the PDI score was significantly greater in the footballer group (β = 9.8; P < 0.001), while the differences between the two groups in uPDI and hPDI scores were not significant. Overall, footballers consumed more plant-based foods. By examining the relationship between dietary indices and oxidative biomarkers, only a negative association was observed between PDI score and F2a-IP level (β = -1.25; P = 0.03). Based on the results, footballers were more adherent to a plant-based diet than non-athletes. In addition, it seems that following plant-based diets (the higher PDI) may exert beneficial effects on lowering F2a-IP levels due to improving the body's antioxidant status.
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Affiliation(s)
- Mahsa Zare
- Student Research Committee, Faculty of Nutrition and Food Science, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Niloofar Shoaei
- Department of Community Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Jahangir Karimian
- Department of General Courses, School of Management and Medical Information Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mehran Nouri
- Department of Community Nutrition, School of Nutrition and Food Science, Shiraz University of Medical Sciences, Shiraz, Iran
- Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Sahar Zare
- Nursing Department, Eghlid Branch, Islamic Azad University, Eghlid, Iran
| | - Kimia Leilami
- Nutrition Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zainab Shateri
- Department of Nutrition and Biochemistry, School of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Parvin Sarbakhsh
- Department of Statistics and Epidemiology, School of Public Health, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Hasan Eftekhari
- Department of Clinical Nutrition, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Bahram Pourghassem Gargari
- Nutrition Research Center, Department of Biochemistry and Diet Therapy, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
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Lacalle E, Fernández-Alegre E, Gómez-Giménez B, Álvarez-Rodríguez M, Martín-Fernández B, Soriano-Úbeda C, Martínez-Pastor F. Application of Flow Cytometry Using Advanced Chromatin Analyses for Assessing Changes in Sperm Structure and DNA Integrity in a Porcine Model. Int J Mol Sci 2024; 25:1953. [PMID: 38396632 PMCID: PMC10888687 DOI: 10.3390/ijms25041953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 01/30/2024] [Accepted: 02/02/2024] [Indexed: 02/25/2024] Open
Abstract
Chromatin status is critical for sperm fertility and reflects spermatogenic success. We tested a multivariate approach for studying pig sperm chromatin structure to capture its complexity with a set of quick and simple techniques, going beyond the usual assessment of DNA damage. Sperm doses from 36 boars (3 ejaculates/boar) were stored at 17 °C and analyzed on days 0 and 11. Analyses were: CASA (motility) and flow cytometry to assess sperm functionality and chromatin structure by SCSA (%DFI, DNA fragmentation; %HDS, chromatin maturity), monobromobimane (mBBr, tiol status/disulfide bridges between protamines), chromomycin A3 (CMA3, protamination), and 8-hydroxy-2'-deoxyguanosine (8-oxo-dG, DNA oxidative damage). Data were analyzed using linear models for the effects of boar and storage, correlations, and multivariate analysis as hierarchical clustering and principal component analysis (PCA). Storage reduced sperm quality parameters, mainly motility, with no critical oxidative stress increases, while chromatin status worsened slightly (%DFI and 8-oxo-dG increased while mBBr MFI-median fluorescence intensity-and disulfide bridge levels decreased). Boar significantly affected most chromatin variables except CMA3; storage also affected most variables except %HDS. At day 0, sperm chromatin variables clustered closely, except for CMA3, and %HDS and 8-oxo-dG correlated with many variables (notably, mBBr). After storage, the relation between %HDS and 8-oxo-dG remained, but correlations among other variables disappeared, and mBBr variables clustered separately. The PCA suggested a considerable influence of mBBr on sample variance, especially regarding storage, with SCSA and 8-oxo-dG affecting between-sample variability. Overall, CMA3 was the least informative, in contrast with results in other species. The combination of DNA fragmentation, DNA oxidation, chromatin compaction, and tiol status seems a good candidate for obtaining a complete picture of pig sperm nucleus status. It raises many questions for future molecular studies and deserves further research to establish its usefulness as a fertility predictor in multivariate models. The usefulness of CMA3 should be clarified.
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Affiliation(s)
- Estíbaliz Lacalle
- Institute of Animal Health and Cattle Development (INDEGSAL), University of León, 24071 León, Spain; (E.L.); (B.M.-F.)
- Bianor Biotech SL, 24071 León, Spain
| | | | - Belén Gómez-Giménez
- Institute of Animal Health and Cattle Development (INDEGSAL), University of León, 24071 León, Spain; (E.L.); (B.M.-F.)
| | - Manuel Álvarez-Rodríguez
- Department of Animal Reproduction, National Institute for Agricultural and Food Research and Technology, Spanish Scientific Research Council (INIA-CSIC), 28040 Madrid, Spain;
| | - Beatriz Martín-Fernández
- Institute of Animal Health and Cattle Development (INDEGSAL), University of León, 24071 León, Spain; (E.L.); (B.M.-F.)
- Department of Molecular Biology (Cell Biology), University of León, 24071 León, Spain
| | - Cristina Soriano-Úbeda
- Department of Medicine, Surgery and Veterinary Anatomy (Animal Medicine and Surgery), University of León, 24071 León, Spain;
| | - Felipe Martínez-Pastor
- Institute of Animal Health and Cattle Development (INDEGSAL), University of León, 24071 León, Spain; (E.L.); (B.M.-F.)
- Department of Molecular Biology (Cell Biology), University of León, 24071 León, Spain
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Murata T, Kyozuka H, Fukuda T, Imaizumi K, Isogami H, Kanno A, Yasuda S, Yamaguchi A, Sato A, Ogata Y, Shinoki K, Hosoya M, Yasumura S, Hashimoto K, Nishigori H, Fujimori K. Urinary 8-hydroxy-2'-deoxyguanosine levels and preterm births: a prospective cohort study from the Japan Environment and Children's Study. BMJ Open 2024; 14:e063619. [PMID: 38316589 PMCID: PMC10860051 DOI: 10.1136/bmjopen-2022-063619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 08/14/2023] [Indexed: 02/07/2024] Open
Abstract
OBJECTIVES To evaluate the association between urinary 8-hydroxy-2'-deoxyguanosine (U8-OHdG) level-a marker of oxidative stress-and the incidence of preterm births (PTBs). DESIGN Prospective cohort study. SETTING The Japan Environment and Children's Study (JECS). PARTICIPANTS Data from 92 715 women with singleton pregnancies at and after 22 weeks of gestation who were enrolled in the JECS, a nationwide birth cohort study, between 2011 and 2014 were analysed. U8-OHdG levels were assessed once in the second/third trimester using liquid chromatography-tandem mass spectrometry. Participants were categorised into the following three or five groups: low (<1.95 ng/mg urinary creatinine (Cre)), moderate (1.95-2.94 ng/mg Cre) and high (≥2.95 ng/mg Cre) U8-OHdG groups, or groups with <1.87, 1.87-2.20, 2.21-2.57, 2.58-3.11 and ≥3.12 ng/mg Cre. For stratification, participants with representative causes for artificial PTB were excluded. PRIMARY AND SECONDARY OUTCOME MEASURES Adjusted OR (aOR) for PTB before 37 and 34 weeks of gestation were calculated using a multivariable logistic regression model while adjusting for confounding factors; the moderate or lowest U8-OHdG group was used as the reference, respectively. RESULTS The aORs for PTB before 37 weeks of gestation in the high U8-OHdG group were 1.13 (95% CI 1.05 to 1.22) and 1.13 (95% CI 1.04 to 1.23) after stratification. The aOR for PTB before 37 weeks in the fourth group was 0.90 (95% CI 0.81 to 0.99). After stratification, the aORs for PTB before 37 and 34 weeks in the fifth group were 1.15 (95% CI 1.03 to 1.29) and 1.46 (95% CI 1.08 to 1.97), respectively. CONCLUSIONS High U8-OHdG levels were associated with increased PTB incidence, especially in participants without representative causes for artificial PTB. Our results can help identify the mechanisms leading to PTB, considering the variable aetiologies of this condition; further validation is needed to clarify clinical impacts.
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Affiliation(s)
- Tsuyoshi Murata
- Fukushima Regional Center for the Japan Environment and Children's Study, Fukushima, Japan
- Department of Obstetrics and Gynecology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Hyo Kyozuka
- Fukushima Regional Center for the Japan Environment and Children's Study, Fukushima, Japan
- Department of Obstetrics and Gynecology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Toma Fukuda
- Fukushima Regional Center for the Japan Environment and Children's Study, Fukushima, Japan
- Department of Obstetrics and Gynecology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Karin Imaizumi
- Fukushima Regional Center for the Japan Environment and Children's Study, Fukushima, Japan
- Department of Obstetrics and Gynecology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Hirotaka Isogami
- Fukushima Regional Center for the Japan Environment and Children's Study, Fukushima, Japan
- Department of Obstetrics and Gynecology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Aya Kanno
- Fukushima Regional Center for the Japan Environment and Children's Study, Fukushima, Japan
- Department of Obstetrics and Gynecology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Shun Yasuda
- Fukushima Regional Center for the Japan Environment and Children's Study, Fukushima, Japan
- Department of Obstetrics and Gynecology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Akiko Yamaguchi
- Fukushima Regional Center for the Japan Environment and Children's Study, Fukushima, Japan
- Department of Obstetrics and Gynecology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Akiko Sato
- Fukushima Regional Center for the Japan Environment and Children's Study, Fukushima, Japan
| | - Yuka Ogata
- Fukushima Regional Center for the Japan Environment and Children's Study, Fukushima, Japan
| | - Kosei Shinoki
- Fukushima Regional Center for the Japan Environment and Children's Study, Fukushima, Japan
| | - Mitsuaki Hosoya
- Fukushima Regional Center for the Japan Environment and Children's Study, Fukushima, Japan
- Department of Pediatrics, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Seiji Yasumura
- Fukushima Regional Center for the Japan Environment and Children's Study, Fukushima, Japan
- Department of Public Health, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Koichi Hashimoto
- Fukushima Regional Center for the Japan Environment and Children's Study, Fukushima, Japan
- Department of Pediatrics, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Hidekazu Nishigori
- Fukushima Regional Center for the Japan Environment and Children's Study, Fukushima, Japan
- Fukushima Medical Center for Children and Women, Fukushima Medical University, Fukushima, Japan
| | - Keiya Fujimori
- Fukushima Regional Center for the Japan Environment and Children's Study, Fukushima, Japan
- Department of Obstetrics and Gynecology, Fukushima Medical University School of Medicine, Fukushima, Japan
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Chen L, Li X, Wu Y, Wang J, Pi J. Differential analysis of ovarian tissue between high and low-yielded laying hens in the late laying stage and the effect of LECT2 gene on follicular granulosa cells proliferation. Mol Biol Rep 2024; 51:240. [PMID: 38300380 DOI: 10.1007/s11033-024-09260-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 01/15/2024] [Indexed: 02/02/2024]
Abstract
The ovaries of high-yield laying hens exhibited signs of aging beyond 400 days of age, subsequently resulting in a decline in both egg production and egg quality. Oxidative stress, characterized by an increase in the production of reactive oxygen species (ROS), stands as one of the principal processes contributing to ovarian aging. Elevated ROS levels are implicated in the induction of apoptosis in granulosa cells (GCs), provoking mitochondrial impairment, and diminishing the capacity of the antioxidant defense system. This investigation stratified laying hens into two distinct groups, predicated upon their egg production levels: high-yield hens (HH) and low-yield hens (LL). The study focused on evaluating oxidative stress markers and identifying differentially expressed genes between these two groups. The findings revealed that the LL group exhibited follicular atresia, mitochondrial disruptions, and apoptotic occurrences in ovarian GCs. Notably, ROS levels, Malondialdehyde (MDA) concentrations, and 8-hydroxy-2'-deoxyguanosine (8-OHdG) concentrations in ovarian tissue and follicular GCs were substantially higher in the HH group. Furthermore, the RNA-sequencing results unveiled differential expression of the LECT2 gene between the HH and LL groups. Consequently, an overexpression vector for the LECT2 gene was successfully constructed and introduced into GCs. The quantitative polymerase chain reaction (QPCR) analysis exhibited significant downregulation (p < 0.01) of key apoptotic genes such as Caspase-3 and C-myc and significant upregulation (p < 0.01) of BCL2 following the overexpression of the LECT2 gene in GCs. In conclusion, oxidative stress emerges as a pivotal factor influencing the laying traits of both high and low-yield laying hens. The accumulation of reactive oxygen species (ROS) within the ovaries precipitates apoptosis in GCs, subsequently leading to follicular atresia and a reduction in egg production. Furthermore, we employed RNA sequencing technology to examine the ovarian matrix tissue in high and low laying hens during the late phase of egg laying. Our analysis revealed a substantial upregulation of the LECT2 gene in the ovarian matrix tissue of high laying hens. This observation implies that the LECT2 gene exerts a pivotal influence on driving the proliferation and differentiation of follicular GCs, thereby exerting a crucial regulatory role in follicular development.
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Affiliation(s)
- Lin Chen
- Animal Husbandry and Veterinary Research Institute, Hubei Key Laboratory of Animal Embryo and Molecular Breeding, Hubei Academy of Agricultural Sciences, Wuhan, 430000, China
- College of Animal Science, Yangtze University, Jingzhou, 434000, China
| | - Xianqiang Li
- Animal Husbandry and Veterinary Research Institute, Hubei Key Laboratory of Animal Embryo and Molecular Breeding, Hubei Academy of Agricultural Sciences, Wuhan, 430000, China
- College of Animal Science, Yangtze University, Jingzhou, 434000, China
| | - Yan Wu
- Animal Husbandry and Veterinary Research Institute, Hubei Key Laboratory of Animal Embryo and Molecular Breeding, Hubei Academy of Agricultural Sciences, Wuhan, 430000, China.
| | - Jiaxiang Wang
- College of Animal Science, Yangtze University, Jingzhou, 434000, China
| | - Jinsong Pi
- Animal Husbandry and Veterinary Research Institute, Hubei Key Laboratory of Animal Embryo and Molecular Breeding, Hubei Academy of Agricultural Sciences, Wuhan, 430000, China
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Zeng JY, Zhang M, Chen XH, Liu C, Deng YL, Chen PP, Miao Y, Cui FP, Shi T, Lu TT, Liu XY, Wu Y, Li CR, Liu CJ, Zeng Q. Prenatal exposures to phthalates and bisphenols in relation to oxidative stress: single pollutant and mixtures analyses. Environ Sci Pollut Res Int 2024; 31:13954-13964. [PMID: 38267646 DOI: 10.1007/s11356-024-32032-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 01/12/2024] [Indexed: 01/26/2024]
Abstract
Prenatal exposures to phthalates and bisphenols have been shown to be linked with adverse birth outcomes. Oxidative stress (OS) is considered a potential mechanism. The objective of this study was to explore the individual and mixtures of prenatal exposures to phthalates and bisphenols in associations with OS biomarkers. We measured eight phthalate metabolites and three bisphenols in the urine samples from 105 pregnant women in Wuhan, China. Urinary 8-hydroxydeoxyguanosine (8-OHdG), 8-isoprostaglandin F2α (8-isoPGF2α), and 4-hydroxy-2-nonenal-mercapturic acid (HNE-MA) were determined as OS biomarkers. The OS biomarkers in associations with the individual chemicals were estimated by linear regression models and restricted cubic spline (RCS) models, and their associations with the chemical mixtures were explored by quantile g-computation (qg-comp) models. In single-pollutant analyses, five phthalate metabolites including monomethyl phthalate (MMP), monoethyl phthalate (MEP), mono-(2-ethylhexyl) phthalate (MEHP), (2-ethyl-5-hydroxyhexyl) phthalate (MEHHP), and mono (2-ethyl-5-oxohexyl) phthalate (MEOHP) were positively associated with urinary 8-OHdG levels (all FDR-adjusted P = 0.06). These associations were further confirmed by the RCS models and were linear (P for overall association ≤ 0.05 and P for non-linear association > 0.05). In mixture analyses, qg-comp models showed that a one-quartile increase in the chemical mixtures of phthalate metabolites and bisphenols was positively associated with urinary levels of 8-OHdG and 8-isoPGF2α, and bisphenol A (BPA) and bisphenol F (BPF) were the most contributing chemicals, respectively. Prenatal exposures to individual phthalates and mixtures of phthalates and bisphenols were associated with higher OS levels.
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Affiliation(s)
- Jia-Yue Zeng
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Min Zhang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Xu-Hui Chen
- NHC Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute, Chongqing, People's Republic of China
| | - Chong Liu
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yan-Ling Deng
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Pan-Pan Chen
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Yu Miao
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Fei-Peng Cui
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Tian Shi
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Ting-Ting Lu
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Xiao-Ying Liu
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Yang Wu
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Cheng-Ru Li
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Chang-Jiang Liu
- NHC Key Laboratory of Birth Defects and Reproductive Health, Chongqing Population and Family Planning Science and Technology Research Institute, Chongqing, People's Republic of China
| | - Qiang Zeng
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China.
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China.
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Kuroda K, Ishii Y, Takasu S, Kijima A, Matsushita K, Masumura KI, Nohmi T, Umemura T. Possible contribution of 8-hydroxydeoxyguanosine to gene mutations in the kidney DNA of gpt delta rats following potassium bromate treatment. Mutat Res Genet Toxicol Environ Mutagen 2024; 894:503729. [PMID: 38432777 DOI: 10.1016/j.mrgentox.2024.503729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/15/2024] [Accepted: 01/18/2024] [Indexed: 03/05/2024]
Abstract
8-Hydroxydeoxyguanosine (8-OHdG) is well known not only as an effective biomarker of oxidative stress but also as a mutagenic DNA modification. Incorporation of dAMP at the opposite site of 8-OHdG induces G>T or A>C transversions. However, in vivo analyses of gene mutations caused by potassium bromate (KBrO3), which can induce 8-OHdG at carcinogenic target sites, showed that G>T was prominent in the small intestines of mice, but not in the kidneys of rats. Because KBrO3 was a much clearer carcinogen in the kidneys of rats, detailed analyses of gene mutations in the kidney DNA of rats treated with KBrO3 could improve our understanding of oxidative stress-mediated carcinogenesis. In the current study, site-specific reporter gene mutation assays were performed in the kidneys of gpt delta rats treated with KBrO3. Groups of 5 gpt delta rats were treated with KBrO3 at concentrations of 0, 125, 250, or 500 ppm in the drinking water for 9 weeks. At necropsy, the kidneys were macroscopically divided into the cortex and medulla. 8-OHdG levels in DNA extracted from the cortex were dramatically elevated at concentrations of 250 ppm and higher compared with those from the medulla. Cortex-specific increases in mutant frequencies in gpt and red/gam genes were found at 500 ppm. Mutation spectrum and sequence analyses of their mutants demonstrated significant elevations in A>T transversions in the gpt gene and single base deletions at guanine or adenine in the gpt or red/gam genes. While A>T transversions and single base deletions of adenine may result from the oxidized modification of adenine, the contribution of 8-OHdG to gene mutations was limited despite possible participation of the 8-OHdG repair process in guanine deletion.
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Affiliation(s)
- Ken Kuroda
- Division of Pathology, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa, 210-9501, Japan
| | - Yuji Ishii
- Division of Pathology, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa, 210-9501, Japan
| | - Shinji Takasu
- Division of Pathology, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa, 210-9501, Japan
| | - Aki Kijima
- Division of Pathology, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa, 210-9501, Japan
| | - Kohei Matsushita
- Division of Pathology, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa, 210-9501, Japan
| | - Ken-Ichi Masumura
- Division of Genetics and Mutagenesis, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa, 210-9501, Japan
| | - Takehiko Nohmi
- Division of Pathology, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa, 210-9501, Japan
| | - Takashi Umemura
- Division of Pathology, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa, 210-9501, Japan; Faculty of Animal Health Technology, Yamzaki University of Animal Health Technology, 4-7-2 Minamiosawa, Hachioji-shi, Tokyo, Japan.
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Zhou D, Sun Y, Dong C, Wang Z, Zhao J, Li Z, Huang G, Li W. Folic acid alleviated oxidative stress-induced telomere attrition and inhibited apoptosis of neurocytes in old rats. Eur J Nutr 2024; 63:291-302. [PMID: 37870657 DOI: 10.1007/s00394-023-03266-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 10/03/2023] [Indexed: 10/24/2023]
Abstract
PURPOSE Oxidative stress has been reported to cause telomere attrition, which triggers cell apoptosis. Apoptosis of neurocytes may play an essential role in the pathogenesis of neurodegenerative diseases. This study hypothesized that folic acid (FA) supplementation decreased neurocyte apoptosis by alleviating oxidative stress-induced telomere attrition in 25-month-old Sprague Dawley (SD) rats. METHODS Three-month-old male SD rats were randomly divided into four diet groups by different concentrations of folic acid in equal numbers, with intervention for 22 months. Folate, homocysteine (Hcy), reactive oxygen species (ROS) levels, antioxidant activities, and telomere length in the brain tissues were tested at 11, 18, and 22 months of intervention, and 8-hydroxy-deoxyguanosine (8-OHdG) levels, neurocyte apoptosis and telomere length in the cerebral cortex and hippocampal regions were tested during the 22-month intervention. An automated chemiluminescence system, auto-chemistry analyzer, Q-FISH, qPCR, and TUNEL assay were used in this study. RESULTS The rats had lower folate concentrations and higher Hcy, ROS, and 8-OHdG concentrations in brain tissue with aging. However, FA supplementation increased folate concentrations and antioxidant activities while decreasing Hcy, ROS, and 8-OHdG levels in rat brain tissue after 11, 18, and 22 months of intervention. Furthermore, FA supplementation alleviated telomere length shortening and inhibited neurocyte apoptosis during the 22-month intervention. CONCLUSION FA supplementation alleviated oxidative stress-induced telomere attrition and inhibited apoptosis of neurocytes in 25-month-old rats.
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Affiliation(s)
- Dezheng Zhou
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300070, China
| | - Yue Sun
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300070, China
| | - Cuixia Dong
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300070, China
| | - Zehao Wang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300070, China
| | - Jing Zhao
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300070, China
| | - Zhenshu Li
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300070, China
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, 300070, China
| | - Guowei Huang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300070, China
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, 300070, China
| | - Wen Li
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin, 300070, China.
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, 300070, China.
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Goriuc A, Cojocaru KA, Luchian I, Ursu RG, Butnaru O, Foia L. Using 8-Hydroxy-2'-Deoxiguanosine (8-OHdG) as a Reliable Biomarker for Assessing Periodontal Disease Associated with Diabetes. Int J Mol Sci 2024; 25:1425. [PMID: 38338704 PMCID: PMC10855048 DOI: 10.3390/ijms25031425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/20/2024] [Accepted: 01/22/2024] [Indexed: 02/12/2024] Open
Abstract
In recent years, research has shown that oxidative stress plays a significant role in chronic inflammatory conditions. The alteration of the oxidant/antioxidant balance leads to the appearance of free radicals, important molecules involved in both diabetes mellitus and periodontal disease. Diabetes is considered to be one of the major risk factors of periodontal disease and the inflammation characterizing this condition is associated with oxidative stress, implicitly resulting in oxidative damage to DNA. 8-Hydroxydeoxyguanosine (8-OHdG) is the most common stable product of oxidative DNA damage caused by reactive oxygen species, and its levels have been reported to increase in body fluids and tissues during inflammatory conditions. 8-OHdG emerges as a pivotal biomarker for assessing oxidative DNA damage, demonstrating its relevance across diverse health conditions, including neurodegenerative disorders, cancers, inflammatory conditions, and periodontal disease. Continued research in this field is crucial for developing more precise treatments and understanding the detailed link between oxidative stress and the progression of periodontitis. The use of the 8-OHdG biomarker in assessing and managing chronic periodontitis is an area of increased interest in dental research, with the potential to provide crucial information for diagnosis and treatment.
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Affiliation(s)
- Ancuta Goriuc
- Department of Biochemistry, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universității Street, 700115 Iasi, Romania; (A.G.); (K.-A.C.); (L.F.)
| | - Karina-Alexandra Cojocaru
- Department of Biochemistry, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universității Street, 700115 Iasi, Romania; (A.G.); (K.-A.C.); (L.F.)
| | - Ionut Luchian
- Department of Periodontology, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universității Street, 700115 Iasi, Romania
| | - Ramona-Garbriela Ursu
- Department of Preventive Medicine and Interdisciplinarity (IX)—Microbiology, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Oana Butnaru
- Department of Biophysics, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universității Street, 700115 Iasi, Romania;
| | - Liliana Foia
- Department of Biochemistry, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universității Street, 700115 Iasi, Romania; (A.G.); (K.-A.C.); (L.F.)
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Squillacioti G, Bellisario V, Ghelli F, Marcon A, Marchetti P, Corsico AG, Pirina P, Maio S, Stafoggia M, Verlato G, Bono R. Air pollution and oxidative stress in adults suffering from airway diseases. Insights from the Gene Environment Interactions in Respiratory Diseases (GEIRD) multi-case control study. Sci Total Environ 2024; 909:168601. [PMID: 37977381 DOI: 10.1016/j.scitotenv.2023.168601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 11/13/2023] [Accepted: 11/13/2023] [Indexed: 11/19/2023]
Abstract
Air pollution is a leading risk factor for global mortality and morbidity. Oxidative stress is a key mechanism underlying air-pollution-mediated health effects, especially in the pathogenesis/exacerbation of airway impairments. However, evidence lacks on subgroups at higher risk of developing more severe outcomes in response to air pollution. This multi-centre study aims to evaluate the association between air pollution and oxidative stress in healthy adults and in patients affected by airway diseases from the Italian GEIRD (Gene Environment Interactions in Respiratory Diseases) multi-case control study. Overall, 1841 adults (49 % females, 20-83 years) were included from four Italian centres: Pavia, Sassari, Turin, and Verona. Following a 2-stage screening process, we identified 1273 cases of asthma, chronic bronchitis, rhinitis, or COPD and 568 controls. Systemic oxidative stress was quantified by urinary 8-isoprostane and 8-OH-dG. Individual residential exposures to NO2, PM10, PM2.5, and O3 were derived using an innovative five-stage machine-learning-based approach. Linear mixed regression models tested the association between oxidative stress biomarkers and air pollution tertiles, adjusting by age, sex, BMI, smoking, education and season, with recruiting centres as random intercept. Only cases exhibited higher levels of log-transformed 8-isoprostane and 8-OH-dG in association with NO2 (β: 0.30 95 % CI: 0.08-0.52 and 0.20 95 % CI: 0.03-0.37), PM10 (0.34 95 % CI: 0.12-0.55 and 0.21 95 % CI: 0.05-0.37) and PM2.5 (0.27 95 % CI: 0.09-0.49 and 0.18 95 % CI: 0.02-0.34) as compared to the first tertile of exposure. No significant associations were observed for summer O3. Our findings suggest that exposure to air pollution may increase systemic oxidative stress levels in people suffering from airway diseases. This introduces a potential novel approach available for future epidemiological studies and Public Health for effective prevention strategies oriented at the quantification of early biological effects in susceptible people, whose additional risk level might be currently underrated. Air-pollution-mediated exacerbations, driven by oxidative stress, still deserve our attention.
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Affiliation(s)
- Giulia Squillacioti
- Department of Public Health and Pediatrics, University of Turin, Via Santena 5 bis, 10126 Turin, Italy.
| | - Valeria Bellisario
- Department of Public Health and Pediatrics, University of Turin, Via Santena 5 bis, 10126 Turin, Italy.
| | - Federica Ghelli
- Department of Public Health and Pediatrics, University of Turin, Via Santena 5 bis, 10126 Turin, Italy.
| | - Alessandro Marcon
- Unit of Epidemiology and Medical Statistics, Department of Diagnostics and Public Health, University of Verona, Verona, Italy.
| | - Pierpaolo Marchetti
- Unit of Epidemiology and Medical Statistics, Department of Diagnostics and Public Health, University of Verona, Verona, Italy.
| | - Angelo G Corsico
- Department of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy; SC Pneumologia, Fondazione IRCCS Policlinico San Matteo, Italy.
| | - Pietro Pirina
- Clinical and Interventional Pulmonology, University Hospital Sassari (AOU), Sassari, Italy; Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy.
| | - Sara Maio
- Institute of Clinical Physiology, National Research Council, Pisa, Italy.
| | - Massimo Stafoggia
- Department of Epidemiology of the Lazio Region Health Service, ASL Roma 1, Rome, Italy.
| | - Giuseppe Verlato
- Unit of Epidemiology and Medical Statistics, Department of Diagnostics and Public Health, University of Verona, Verona, Italy.
| | - Roberto Bono
- Department of Public Health and Pediatrics, University of Turin, Via Santena 5 bis, 10126 Turin, Italy.
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Dash UC, Swain SK, Jena AB, Dandapat J, Sahoo AK. The ameliorative effect of Piper trioicum in attenuating cognitive deficit in scopolamine induced neurotoxicity in experimental rats. J Ethnopharmacol 2024; 318:116911. [PMID: 37451488 DOI: 10.1016/j.jep.2023.116911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 07/08/2023] [Accepted: 07/11/2023] [Indexed: 07/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE In traditional system of medicine, Piper species, or its components are widely used to treat many diseases including memory improvement. One of the wild species Piper trioicum Roxb. (Piperaceae) is found in South Asian countries. The whole plant is used as folk medicine to improve memory. AIM OF THE STUDY To our knowledge, no previous research has investigated the neuroprotective activities of P. trioicum. So, we studied the ameliorative effect of P. trioicum in attenuating cognitive deficit in scopolamine induced neurotoxicity in experimental rats. MATERIALS AND METHODS Wistar rats were exposed to scopolamine (3 mg/kg, i. p.) for 14 consecutive days, and the effect of P. trioicum (HAPT; oral, 300, 400 mg/kg) on scopolamine-invoked neurotoxicity in brain were studied. During the experimental period, behaviour analyses of rats were observed 30 min post-drug administration. The role of antioxidants of HAPT in scavenging cellular oxygen/peroxyl radicals were studied. Acetylcholinesterase and butyrylcholinesterase inhibitions, and mode of inhibition kinetics of HAPT were studied. Pathogenic cellular oxidative (MDA, GSH, SOD, and CAT), DNA damage (8-oxodG), neurochemical (acetyl- and, butyryl-cholinesterase), β-secretase (BACE-1 and 2), MAPτ, and neuroinflammation (IL-6, TNF-α) biomarkers in extension to the histopathological observation of brain cortex were studied. GC-MS/MS analysis was carried out to investigate the presence of bioactive constituents in HAPT. RESULTS HAPT, a rich source of phenol and flavonoid type antioxidants were responsible in quenching oxygen/peroxyl radicals and protected the cellular membrane, and lipoproteins against ROS in DPPH, ORAC, and CAPe tests. HAPT inhibited acetylcholinesterase and butyrylcholinesterase activities, and showed competitive-inhibition (reversible) towards cholinesterase activities. HAPT-400 significantly improved the learning and memory-impairment by restoring oxidative MDA, GSH, SOD, CAT, and DNA damage (8-oxodG) markers of serum, and cortex. It also improved acetyl- and, butyryl-cholinesterase, β-secretase, and MAPτ level in brain by restoring proinflammatory cytokines IL-6, and TNF-α indicators in neurotoxic rats. GC-MS/MS reported therapeutic significance active compounds were molecular-docked towards target proteins, found that proscillaridin showed the highest affinity towards AChE, BuChE, BACE1, and BACE2 with binding energy of ΔGb -9.1, ΔGb -10.2, ΔGb -11.4 and ΔGb -11.5 Kcal/mol, respectively. Cymarin and morphine-3-glucuronide showed the second highest binding affinity towards AChE (ΔGb -8.8) and BuChE (ΔGb -10.0), respectively. In BACE-1, betulin showed the second highest binding affinity ΔGb -10.7 Kcal/mol and in BACE-2, morphine-3-glucuronide showed the second highest binding affinity ΔGb -9.8 Kcal/mol. CONCLUSIONS Synergistic impact of proscillaridin, Cymarin, morphine-3-glucuronide, betulin like compounds in HAPT improved memory impairment, healing of tissue architecture of cortex with the restoration of neurochemical, neuroinflammation, and oxidative indicators in neurotoxic rats.
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Affiliation(s)
- Umesh Chandra Dash
- Regional Plant Resource Centre, Medicinal & Aromatic Plant Division, Forest & Environment Department, Govt. of Odisha, Nayapalli, Bhubaneswar, 751015, India
| | - Sandeep Kumar Swain
- Regional Plant Resource Centre, Medicinal & Aromatic Plant Division, Forest & Environment Department, Govt. of Odisha, Nayapalli, Bhubaneswar, 751015, India
| | - Atala Bihari Jena
- Department of Biotechnology, Utkal University, Vani Vihar, Bhubaneswar, 751004, India
| | - Jagneshwar Dandapat
- Department of Biotechnology, Utkal University, Vani Vihar, Bhubaneswar, 751004, India
| | - Atish Kumar Sahoo
- Regional Plant Resource Centre, Medicinal & Aromatic Plant Division, Forest & Environment Department, Govt. of Odisha, Nayapalli, Bhubaneswar, 751015, India.
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Zhicheng J, Yongqian L, Peixuan W, Kai Y, Mengyu S, Wen C, Qihui L, Ying G. ErZhiTianGui Decoction alleviates age-related ovarian aging by regulating mitochondrial homeostasis and inhibiting ferroptosis. J Ovarian Res 2024; 17:12. [PMID: 38200521 PMCID: PMC10777630 DOI: 10.1186/s13048-023-01341-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 12/30/2023] [Indexed: 01/12/2024] Open
Abstract
AIM This study was designed to investigate the pharmacological effects and mechanisms of ErZhiTianGui Decoction (EZTG) for age-related ovarian aging in mice. METHODS This study used naturally aging mice as a model, and EZTG was used for intragastric administration. Ovarian pathological changes, as well as follicular reserve were assessed by hematoxylin and eosin staining, and serum hormone levels (anti-mullerian hormone, follicle-stimulating hormone), mitochondrial reactive oxygen species (ROS) and mitochondrial DNA (mtDNA) damage marker 8-hydroxy-2'-deoxyguanosine(8-OHdG), and lipid peroxidation markers glutathione(GSH) and malondialdehyde(MDA) were determined by enzyme-linked immunosorbent assay. Mitochondrial membrane potential (MMP) levels in ovaries were determined using flow cytometry. The levels of PINK1 and Parkin were observed using immunofluorescence staining. Mitochondrial-derived vesicles (MDVs) and mitochondrial morphology were observed using electron microscopy. Prussian blue staining was used to observe iron ion aggregation in ovarian tissue. The Iron assay kits detected total iron levels. Western blot was used to detect the expression of proteins related to mitochondrial and ferroptosis related genes. RESULTS After EZTG treatment, aged mice showed increased ovarian reserve, improved serum hormone levels, increased MMP, GSH levels, and decreased mitochondrial ROS, 8-OHdG, and MDA levels. Immunofluorescence staining showed decreased levels of PINK1 and Parkin, and the same trend was observed for the Western blot. Meanwhile, electron microscopy showed that EZTG improved the mitochondrial morphology in the ovaries of aged mice. EZTG also decreased the total iron and protein levels of Acyl-CoA synthetase long-chain family4 (ACSL4) and increased the protein level of glutathione peroxidase 4 (GPX4) in the ovaries of aged mice. CONCLUSIONS EZTG can maintain PINK1/Parkin-mediated mitochondrial homeostasis, reduce the lipid peroxidation caused by the accumulation of ROS, and inhibit the occurrence of ferroptosis and delaying ovarian aging. These findings suggest that EZTG may be a promising drug for treating age-related ovarian aging in females.
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Affiliation(s)
- Jia Zhicheng
- The First Clinical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Li Yongqian
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Wang Peixuan
- The First Clinical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yang Kai
- The First Clinical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Shi Mengyu
- The First Clinical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Chen Wen
- The First Clinical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Liang Qihui
- The First Clinical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Guo Ying
- The First Clinical College, Shandong University of Traditional Chinese Medicine, Jinan, China.
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China.
- Reproductive and Genetic Center of Integrative Medicine, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China.
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Zarakowska E, Guz J, Mijewski P, Wasilow A, Wozniak J, Roszkowski K, Foksinski M, Gackowski D, Olinski R. Intracellular ascorbate is a safe-guard and/or reservoir for plasma vitamin C in prostate cancer patients undergoing radiotherapy. Free Radic Biol Med 2024; 210:230-236. [PMID: 38036068 DOI: 10.1016/j.freeradbiomed.2023.11.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/03/2023] [Accepted: 11/24/2023] [Indexed: 12/02/2023]
Abstract
Prostate cancer (PC) represents one of the most common cancer types worldwide and many patients suffering from this kind of cancer are treated with radiotherapy (RTH). Ionizing irradiation is closely associated with reactive oxygen species (ROS) production and oxidative stress. Over the years the role of vitamin C (VC) in cancer prevention has been highlighted as it may be mediated by its ability to neutralize pro-carcinogenic ROS. However, the debate concerning the presence of VC in blood and its beneficial effect on the survival of cancer patients is inconsistent and controversial. To our best knowledge until recently there have been no studies concerning such a role of intracellular VC (iVC). In the present study, blood and intracellular concentrations of vitamin C were analyzed along with the level of 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG), as an established marker of the stress condition, in leukocytes of PC patients during the course of radiotherapy. The level of intracellular vitamin C significantly decreased in PC patients in comparison with the healthy group, while there were no differences in blood VC. It was observed that a sub-group of the PC patients reacted to RTH decreasing VC in leukocytes (group A), while the other sub-group acted the other way round, significantly increasing its level (group B). Under stressful conditions (RTH) leukocytes react in two different ways. Both ways are in good agreement with two well recognized functions, proposed for iVC; it may serve as a save factor, to protect the cellular DNA, increasing its concentration inside the cell (group B), and as a reservoir decreasing the VC level inside leukocytes and releasing VC into the plasma to rescue its physiological level (group A). It was also demonstrated that there was a relationship between the level of 8-oxodG in leukocytes' DNA and the markers of RTH toxicity.
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Affiliation(s)
- Ewelina Zarakowska
- Department of Clinical Biochemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-092 Bydgoszcz, Poland.
| | - Jolanta Guz
- Department of Clinical Biochemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-092 Bydgoszcz, Poland.
| | - Pawel Mijewski
- Department of Clinical Biochemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-092 Bydgoszcz, Poland.
| | - Aleksandra Wasilow
- Department of Clinical Biochemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-092 Bydgoszcz, Poland.
| | - Jakub Wozniak
- Department of Clinical Biochemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-092 Bydgoszcz, Poland.
| | - Krzysztof Roszkowski
- Department of Oncology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-821 Bydgoszcz, Poland.
| | - Marek Foksinski
- Department of Clinical Biochemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-092 Bydgoszcz, Poland.
| | - Daniel Gackowski
- Department of Clinical Biochemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-092 Bydgoszcz, Poland.
| | - Ryszard Olinski
- Department of Clinical Biochemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-092 Bydgoszcz, Poland.
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Midorikawa K, Kobayashi K, Kato S, Kawanishi S, Kobayashi H, Oikawa S, Murata M. Oxidative DNA damage: Induction by fructose, in vitro, and its enhancement by hydrogen peroxide. Mutat Res Genet Toxicol Environ Mutagen 2024; 893:503719. [PMID: 38272630 DOI: 10.1016/j.mrgentox.2023.503719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/21/2023] [Accepted: 11/22/2023] [Indexed: 01/27/2024]
Abstract
Sucrose and high-fructose corn syrup comprise nearly equal amounts of glucose and fructose. With the use of high-fructose corn syrup in the food industry, consumption of fructose, which may be a tumor promoter, has increased dramatically. We examined fructose-induced oxidative DNA damage in the presence of Cu(II), with or without the addition of H2O2. With isolated DNA, fructose induced Cu(II)-mediated DNA damage, including formation of 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG), to a greater extent than did glucose, and H2O2 enhanced the damage. In cultured human cells, 8-oxodG formation increased significantly following treatment with fructose and the H2O2-generating enzyme glucose oxidase. Fructose may play an important role in oxidative DNA damage, suggesting a possible mechanism for involvement of fructose in carcinogenesis.
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Affiliation(s)
- Kaoru Midorikawa
- Department of Environmental and Molecular Medicine, Mie University Graduate School of Medicine, Edobashi 2-174, Tsu, Mie 514-8507, Japan; Faculty of Child Education, Suzuka University, 663-222, Koriyama, Suzuka, Mie 510-0298, Japan
| | - Kokoro Kobayashi
- Department of Environmental and Molecular Medicine, Mie University Graduate School of Medicine, Edobashi 2-174, Tsu, Mie 514-8507, Japan
| | - Shinya Kato
- Radioisotope Experimental Facility, Advanced Science Research Promotion Center, Mie University, Edobashi 2-174, Tsu, Mie 514-8507, Japan
| | - Shosuke Kawanishi
- Faculty of Pharmaceutical Science, Suzuka University of Medical Science, 3500-3, Minamitamagaki, Suzuka, Mie 513-8670, Japan
| | - Hatasu Kobayashi
- Department of Environmental and Molecular Medicine, Mie University Graduate School of Medicine, Edobashi 2-174, Tsu, Mie 514-8507, Japan
| | - Shinji Oikawa
- Department of Environmental and Molecular Medicine, Mie University Graduate School of Medicine, Edobashi 2-174, Tsu, Mie 514-8507, Japan
| | - Mariko Murata
- Department of Environmental and Molecular Medicine, Mie University Graduate School of Medicine, Edobashi 2-174, Tsu, Mie 514-8507, Japan.
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Darenskaya MA, Rychkova LV, Kolesnikov SI, Semenova NV, Nikitina OA, Lesnaya AS, Kolesnikova LI. Oxidative Damage of DNA, Proteins and C-Reactive Protein Parameters in Girls and Boys with Exogenous Constitutional Obesity. Bull Exp Biol Med 2024; 176:328-331. [PMID: 38340194 DOI: 10.1007/s10517-024-06018-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Indexed: 02/12/2024]
Abstract
The parameters of oxidative damage of DNA, proteins, as well as the parameters of the thiol-disulfide system and C-reactive protein in adolescent girls and boys with exogenous constitutional obesity (ECO) were evaluated. In girls and boys with obesity, the levels of 8-hydroxy-2'-deoxyguanosine (marker of DNA destruction) were higher than in controls. Evaluation of the activity of the thiol-disulfide system revealed increased levels of oxidized glutathione (GSSG) and decreased levels of the reduced glutathione (GSH) and GSSG ratio (GSH/GSSG) in adolescents with ECO regardless of the sex in comparison with the control. C-reactive protein was also higher in the ECO groups regardless of the sex. The levels of glutathione peroxidase in obese boys were higher than in girls. In view of the revealed shifts, corrective measures with the prescription of drugs with antioxidant properties are recommended in adolescents with ECO to stabilize the indices.
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Affiliation(s)
- M A Darenskaya
- Scientific Centre for Family Health and Human Reproduction Problems, Irkutsk, Russia.
| | - L V Rychkova
- Scientific Centre for Family Health and Human Reproduction Problems, Irkutsk, Russia
| | - S I Kolesnikov
- Scientific Centre for Family Health and Human Reproduction Problems, Irkutsk, Russia
| | - N V Semenova
- Scientific Centre for Family Health and Human Reproduction Problems, Irkutsk, Russia
| | - O A Nikitina
- Scientific Centre for Family Health and Human Reproduction Problems, Irkutsk, Russia
| | - A S Lesnaya
- Scientific Centre for Family Health and Human Reproduction Problems, Irkutsk, Russia
| | - L I Kolesnikova
- Scientific Centre for Family Health and Human Reproduction Problems, Irkutsk, Russia
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30
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Christensen LL, Poulsen HE, Andersen MS, Glintborg D. Whole-body oxidative stress reduction during testosterone therapy in aging men: A randomized placebo-controlled trial. Andrology 2024; 12:115-122. [PMID: 37177884 DOI: 10.1111/andr.13458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/19/2023] [Accepted: 05/10/2023] [Indexed: 05/15/2023]
Abstract
BACKGROUND Testosterone replacement therapy in aging men increases lean body mass and decreases whole-body fat. The safety of testosterone replacement therapy concerning cardiovascular disease is unresolved and assessment of whole-body oxidative stress may contribute to future decision making. OBJECTIVES To determine whole-body oxidative stress during testosterone replacement therapy and placebo in aging men and evaluate if a change in oxidative stress was mediated by changed body composition. MATERIALS AND METHODS This was a double-blinded, randomized, placebo-controlled study for 24 weeks in 38 men aged 60-78 years with bioavailable testosterone <7.3 nmol/L and waist circumference ≥94 cm who were randomized to testosterone replacement therapy (testosterone gel) (N = 20) or placebo (N = 18). At baseline and after 24 weeks, whole-body oxidative stress was assessed by oxidized derivatives of nucleic acids, 8-oxoguanosine and 8-oxo-2'-deoxyguanosine in 24-h urine samples by ultra-performance liquid chromatography tandem mass spectrometry. Lean body mass and whole-body fat were measured by dual X-ray absorptiometry. Subcutaneous and visceral adipose tissue were estimated by magnetic resonance imaging. Testosterone replacement therapy versus placebo was compared by Mann-Whitney tests on ∆-values (24-0 weeks). RESULTS Baseline age was 67 (64-72) years (median [interquartile range]), body mass index 29.8 (26.6-33.3) kg/m2 , waist 107 (99-117) cm, and bioavailable testosterone 4.7 (3.7-5.9) nmol/L. During testosterone replacement therapy, 8-oxoguanosine in 24-h urine samples decreased from 21.6 (19.8; 27.7) nm to 15.0 (12.2; 18.8) nm (p = 0.038 vs. placebo), lean body mass increased (p < 0.01) and whole-body fat (p = 0.02) and subcutaneous adipose tissue (p < 0.01) decreased. 8-Oxoguanosine in 24-h urine samples was inversely associated with Δ-lean body mass (ρ = -0.38, p = 0.03), which remained significant after adjusting for Δ-total testosterone. 8-Oxo-2'-deoxyguanosine in 24-h urine samples was unchanged (p = 0.06) during testosterone replacement therapy and Δ-8-oxo-2'-deoxyguanosine in 24-h urine samples was associated with Δ-whole-body fat (kg) (ρ = 0.47, p < 0.01). Δ-Values of oxidative stress biomarkers were not associated with Δ-fasting insulin or Δ-homeostatic model assessment of insulin resistance. DISCUSSION Oxidative stress decreased during testosterone replacement therapy compared to placebo, which could be mediated by changed body composition. CONCLUSION Whole-body oxidative stress decreased during 24 weeks of testosterone replacement therapy in aging men.
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Affiliation(s)
- Louise Lehmann Christensen
- Department of Endocrinology, Odense University Hospital, Odense, Denmark
- University of Southern Denmark, Odense, Denmark
| | - Henrik Enghusen Poulsen
- Department of Endocrinology, University Hospital Copenhagen, Bispebjerg-Frederiksberg Hospital, Frederiksberg, Denmark
- Department of Cardiology, University Hospital Copenhagen, Nordsjaellands Hospital Hillerød, Hillerod, Denmark
| | - Marianne Skovsager Andersen
- Department of Endocrinology, Odense University Hospital, Odense, Denmark
- University of Southern Denmark, Odense, Denmark
| | - Dorte Glintborg
- Department of Endocrinology, Odense University Hospital, Odense, Denmark
- University of Southern Denmark, Odense, Denmark
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Lin HY, Zhu X, Mazumder HOR, Ronis M, Pedersen KB, Hagensee M. Serum oxidative biomarkers associated with genital HPV infection and cervical lesions in women. J Med Virol 2024; 96:e29362. [PMID: 38180249 PMCID: PMC10845121 DOI: 10.1002/jmv.29362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 12/05/2023] [Accepted: 12/18/2023] [Indexed: 01/06/2024]
Abstract
Human papillomavirus (HPV) infection is a major cause of cervical cancer. Studies showed HPV carcinogenesis may be induced by oxidative stress affecting the host immune system. The objective of this study is to evaluate levels of four circulating oxidative stress biomarkers associated with the HPV infection, persistence, and cervical lesion status in women. The three serum biomarkers measuring oxidative damage to biomolecules (8-oxodG, 8-oxo-7,8-dihydro-2'-deoxyguanosine [8-oxodG] for DNA, 4-hydroxy-2-nonenal [4-HNE] for lipid, and protein carbonyl [PC] for protein) and one antioxidant (glutathione, GSH) collected from 38 women were evaluated. The PC levels were significantly higher for women with oncogenic HPV infection (p = 0.047) and persistence (p = 0.053) based on the unadjusted linear model. In particular, women with ≥3 oncogenic HPV types had a higher PC level than those without HPV infection (p = 0.041). Women with low-grade squamous intraepithelial lesions showed an elevated PC (p = 0.058). These trends remained similar after adjusting for age. The GSH levels were lower for women infected with ≥3 oncogenic HPV types based on age-adjusted results (p = 0.061). This study supported that serum PC was associated with HPV infection, persistence, and cervical lesions, so it can potentially be used to monitor HPV carcinogenesis. Further large-scale studies will be needed to confirm these findings.
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Affiliation(s)
- Hui-Yi Lin
- Biostatistics Program, School of Public Health, Louisiana
State University Health Sciences Center, New Orleans, Louisiana, USA
| | - Xiaodan Zhu
- Biostatistics Program, School of Public Health, Louisiana
State University Health Sciences Center, New Orleans, Louisiana, USA
| | - Harun Or Rashid Mazumder
- Biostatistics Program, School of Public Health, Louisiana
State University Health Sciences Center, New Orleans, Louisiana, USA
| | - Martin Ronis
- Department of Pharmacology & Experimental Therapeutics,
School of Medicine, Louisiana State University Health Sciences Center, New Orleans,
Louisiana, USA
| | - Kim Brint Pedersen
- Department of Pharmacology & Experimental Therapeutics,
School of Medicine, Louisiana State University Health Sciences Center, New Orleans,
Louisiana, USA
| | - Michael Hagensee
- Section of Infection Diseases, Department of Medicine,
School of Medicine, Louisiana State University Health Sciences Center, New Orleans,
Louisiana, USA
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Suzuki S, Gi M, Komiya M, Obikane A, Vachiraarunwong A, Fujioka M, Kakehashi A, Totsuka Y, Wanibuchi H. Evaluation of the Mechanisms Involved in the Development of Bladder Toxicity following Exposure to Occupational Bladder Cancer Causative Chemicals Using DNA Adductome Analysis. Biomolecules 2023; 14:36. [PMID: 38254636 PMCID: PMC10813811 DOI: 10.3390/biom14010036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/22/2023] [Accepted: 12/25/2023] [Indexed: 01/24/2024] Open
Abstract
Occupational exposure to aromatic amines (AAs) is an important risk factor for urinary bladder cancer. This study aimed to evaluate the toxicity of AAs and analyze the carcinogenic mechanisms in rat bladder by comprehensive analysis of DNA adducts (DNA adductome). DNA was extracted from the bladder epithelia of rats treated with AAs, including acetoacet-o-toluidine (AAOT) and o-toluidine (OTD), and adductome analysis was performed. Principal component analysis-discriminant analysis revealed that OTD and AAOT observed in urinary bladder hyperplasia could be clearly separated from the controls and other AAs. After confirming the intensity of each adduct, four adducts were screened as having characteristics of the OTD/AAOT treatment. Comparing with the in-house DNA adduct database, three of four candidates were identified as oxidative DNA adducts, including 8-OH-dG, based on mass fragmentation together with high-resolution accurate mass (HRAM) spectrometry data. Therefore, findings suggested that oxidative stress may be involved in the toxicity of rat bladder epithelium exposed to AAs. Consequently, the administration of apocynin, an inhibitor of nicotinamide adenine dinucleotide phosphate oxidase, in six-week-old rats fed with 0.6% OTD in their diet resulted in simple hyperplastic lesions in the bladder that were suppressed by apocynin. The labeling indices of Ki67, γ-H2AX, and 8-OHdG were significantly decreased in an apocynin concentration-dependent manner. These findings indicate that oxidative stress may have contributed to the development of urinary cancer induced by OTD.
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Affiliation(s)
- Shugo Suzuki
- Department of Molecular Pathology, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahi-machi, Abeno-ku, Osaka 545-8585, Japan; (S.S.); (M.G.); (A.V.); (M.F.); (A.K.)
| | - Min Gi
- Department of Molecular Pathology, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahi-machi, Abeno-ku, Osaka 545-8585, Japan; (S.S.); (M.G.); (A.V.); (M.F.); (A.K.)
- Department of Environmental Risk Assessment, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahi-machi, Abeno-ku, Osaka 545-8585, Japan
| | - Masami Komiya
- Laboratory of Environmental Toxicology and Carcinogenesis, School of Pharmacy, Nihon University, Chiba 274-8555, Japan;
- Division of Cancer Pathophysiology, National Cancer Center Research Institute, Tokyo 104-0045, Japan;
| | - Asuka Obikane
- Division of Cancer Pathophysiology, National Cancer Center Research Institute, Tokyo 104-0045, Japan;
- Department of Biochemistry, University of Yamanashi, Shimokato 1110, Chuo 409-3898, Japan
| | - Arpamas Vachiraarunwong
- Department of Molecular Pathology, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahi-machi, Abeno-ku, Osaka 545-8585, Japan; (S.S.); (M.G.); (A.V.); (M.F.); (A.K.)
- Department of Environmental Risk Assessment, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahi-machi, Abeno-ku, Osaka 545-8585, Japan
| | - Masaki Fujioka
- Department of Molecular Pathology, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahi-machi, Abeno-ku, Osaka 545-8585, Japan; (S.S.); (M.G.); (A.V.); (M.F.); (A.K.)
| | - Anna Kakehashi
- Department of Molecular Pathology, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahi-machi, Abeno-ku, Osaka 545-8585, Japan; (S.S.); (M.G.); (A.V.); (M.F.); (A.K.)
| | - Yukari Totsuka
- Laboratory of Environmental Toxicology and Carcinogenesis, School of Pharmacy, Nihon University, Chiba 274-8555, Japan;
- Division of Cancer Pathophysiology, National Cancer Center Research Institute, Tokyo 104-0045, Japan;
| | - Hideki Wanibuchi
- Department of Molecular Pathology, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahi-machi, Abeno-ku, Osaka 545-8585, Japan; (S.S.); (M.G.); (A.V.); (M.F.); (A.K.)
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Li W, Li Z, Yan Y, Zhang J, Zhou Q, Wang R, He M. Association of urinary arsenic metabolism with type 2 diabetes and glucose homeostasis: Cross-sectional and longitudinal associations. Environ Res 2023; 239:117410. [PMID: 37858693 DOI: 10.1016/j.envres.2023.117410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 09/20/2023] [Accepted: 10/11/2023] [Indexed: 10/21/2023]
Abstract
BACKGROUND Previous researches have assessed the relationships of urinary arsenic metabolism with type 2 diabetes (T2D) and glucose-insulin homeostasis, but the results were controversial, and potential mechanisms remain largely unclear. OBJECTIVES This study aimed to investigate the cross-sectional and longitudinal associations of urinary arsenic metabolism with T2D prevalence and glucose changes in relatively higher arsenic exposure, and further to evaluate the underlying roles of oxidative damage in these relationships. METHODS We included 796 participants at baseline, among them 509 participants were followed up after 2 years. Logistic regression model and leave-one-out approach were applied to evaluate the associations of arsenic metabolism with T2D prevalence. Linear mixed model was conducted to estimate the relationship of arsenic metabolism with glycemic changes over two years. The associations between arsenic metabolism and indicators of oxidative stress were assessed with a linear regression model. We further performed mediation analysis to investigate the role of oxidative stress in the associations of arsenic metabolism with 2-year change of glucose levels. RESULTS Higher urinary MMA% increased T2D prevalence and baseline glucose levels. MMA% was positively associated with 2-year change of glucose levels. Moreover, we observed significant dose-response relationship between MMA% and 8-hydroxy-2-deoxyguanosine (8-OHdG). However, the mediating role of 8-OHdG in the association of MMA% and 2-year change of glucose levels was not observed in this population. CONCLUSIONS In this population exposure to relatively higher arsenic levels, higher MMA% contributed to increased T2D prevalence and glucose homeostasis disorder. Arsenic metabolism also affected oxidative stress levels, especially 8-OHdG. Further studies are required to investigate the potential mechanisms.
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Affiliation(s)
- Weiya Li
- Department of Occupational and Environmental Health, Ministry of Education and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhaoyang Li
- Department of Occupational and Environmental Health, Ministry of Education and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yan Yan
- Department of Occupational and Environmental Health, Ministry of Education and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiazhen Zhang
- Department of Occupational and Environmental Health, Ministry of Education and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qihang Zhou
- Department of Occupational and Environmental Health, Ministry of Education and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ruixin Wang
- Department of Occupational and Environmental Health, Ministry of Education and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Meian He
- Department of Occupational and Environmental Health, Ministry of Education and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Tanaka S, Suzuki S, Soeta S, Kaneda T, Hara AY. Mechanism of long-term high-dose prednisolone administration producing myocardial fibrosis in beagle dogs. Open Vet J 2023; 13:1708-1717. [PMID: 38292726 PMCID: PMC10824093 DOI: 10.5455/ovj.2023.v13.i12.19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 11/06/2023] [Indexed: 02/01/2024] Open
Abstract
Background We previously reported that myocardial fibrosis may be one of the causes of left ventricular hypertrophy and cardiac dysfunction in dogs with hyperglucocorticism (HGC). The detailed mechanism by which myocardial fibrosis of the left ventricle occurs in dogs with HGC remains unclear. Aim Th is study investigated the mechanism by which HGC causes fibrosis of the left ventricle. Methods The impa cts of HGC on the heart by comparing samples obtained from high-dose glucocorticoid (GC)-treated (P) and untreated (C) dogs. The P group included healthy Beagle dogs (n = 6) treated with prednisolone (2 mg/kg, bid, po) for 84 days, and the C group included healthy Beagle dogs (n = 6) euthanized for unrelated reasons. In three of the P group dogs, serum was collected before the start of administration (Day 0) and on Day 84 to measure angiotensin II concentrations and oxidative stress markers (8-hydroxy-2'-deoxyguanosine (8OHdG), NADPH oxidase, and superoxide levels). Samples of the left ventricular free wall (LVFW), right ventricular free wall (RVFW), interventricular septum (IVS), and aortic root were harvested from both groups (n = 6 for each group). Using these tissue samples, angiotensin II type 1 receptor (AT1R), 8OHdG, and transforming growth factor β1 (TGFβ1) immunohistochemical stains were performed. Results The blood N ADPH oxidase concentration was significantly higher (p = 0.027) in the P group 84 days after initiation of the medication compared to that before prednisolone treatment. By contrast, there was no significant difference in serum angiotensin II (p = 0.450), 8OHdG (p = 0.068), and superoxide (p = 0.057) concentrations. The positive staining rates of AT1R, 8OHdG, and TGFβ1 in the heart (LVFW, RVFW, IVS, and aortic root) were significantly higher in the P group than those in the C group. Conclusion Angiotensin II and oxidative stress in HGC may cause left ventricular fibrosis in dogs.
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Affiliation(s)
- Sachiyo Tanaka
- Division of Veterinary Surgery, Department of Veterinary Science, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Shuji Suzuki
- Division of Veterinary Surgery, Department of Veterinary Science, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Satoshi Soeta
- Division of Veterinary Anatomy, Department of Veterinary Science, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - Takeharu Kaneda
- Division of Veterinary Pharmacology, Department of Veterinary Science, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
| | - and Yasushi Hara
- Division of Veterinary Surgery, Department of Veterinary Science, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan
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Cavalheiro Paulelli AC, Cruz JC, Rocha BA, Souza MCO, Ruella de Oliveira S, Cesila CA, Devoz PP, Filho WDRP, Soares de Campos M, Domingo JL, Barbosa F. Association between urinary concentrations of toxic metals/metalloids and oxidative stress in Brazilians living in areas affected by the Fundão dam failure. Environ Res 2023; 238:117307. [PMID: 37797667 DOI: 10.1016/j.envres.2023.117307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 10/02/2023] [Accepted: 10/03/2023] [Indexed: 10/07/2023]
Abstract
The Fundão Dam failure has been the most significant environmental disaster in Brazil. The catastrophe released large amounts of mining waste into the environment, including toxic metals/metalloids, which are recognized to induce carcinogenic effects. The urinary levels of 8-hydroxy-2'-deoxyguanosine (8OHdG), a widely accepted oxidative stress and carcinogenesis biomarker, provide a potential tool for assessing the disaster's health implications. This study investigated the association between urinary levels of some toxic metals/metalloids and 8OHdG in Brazilian individuals living in areas affected by the Fundão dam failure. Urinary concentrations of arsenic (As), cadmium (Cd), mercury (Hg), nickel (Ni), and lead (Pb) were determined using inductively coupled plasma mass spectrometry, while 8OHdG was analyzed by liquid chromatography-tandem mass spectrometry. Non-parametric bootstrap regression was used to estimate the associations between the urinary levels of toxic elements and 8OHdG. The results showed that except for Hg, urinary concentrations of all metals/metalloids analyzed here exceeded the reference ranges for the Brazilian population. The regression analysis revealed that As (0.337; CI 95%: 0.203; 0.474), Cd (0.268; CI 95%: 0.036; 0.520), and Ni (0.296; CI 950.108; 0.469) were positively associated with creatinine-adjusted urinary 8OHdG levels. Associations were not found for Hg (0.0122; CI 95%: -0.155; 0.183) and Pb (0.201; CI 95%: -0.040; 0.498). The current findings suggest that high exposure to toxic metals/metalloids might increase 8OHdG levels with potential adverse health effects. This study is the first one in which the relationship between toxic metals/metalloids and oxidative stress biomarkers is investigated in populations affected by environmental disasters. Further prospective studies are necessary to monitor exposure levels and explore additional health impacts.
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Affiliation(s)
- Ana Carolina Cavalheiro Paulelli
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, 14040-903, SP, Brazil
| | - Jonas Carneiro Cruz
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, 14040-903, SP, Brazil
| | - Bruno Alves Rocha
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, 14040-903, SP, Brazil
| | - Marilia Cristina Oliveira Souza
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, 14040-903, SP, Brazil.
| | - Silvana Ruella de Oliveira
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, 14040-903, SP, Brazil
| | - Cibele Aparecida Cesila
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, 14040-903, SP, Brazil
| | - Paula Picoli Devoz
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, 14040-903, SP, Brazil
| | | | | | - José L Domingo
- Universitat Rovira i Virgili, Laboratory of Toxicology and Environmental Health, School of Medicine, Sant Llorenç 21, 43201, Reus, Catalonia, Spain
| | - Fernando Barbosa
- Department of Clinical Analyses, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, 14040-903, SP, Brazil.
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Zhang H, Liu R, Yang L, Cheng H, Wang S, Zhang B, Shao J, Ma S, Norbäck D, Zhang X, An T. Exposure to polycyclic aromatic hydrocarbons (PAHs) in outdoor air and respiratory health, inflammation and oxidative stress biomarkers: A panel study in healthy young adults. Sci Total Environ 2023; 899:165582. [PMID: 37467979 DOI: 10.1016/j.scitotenv.2023.165582] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/08/2023] [Accepted: 07/15/2023] [Indexed: 07/21/2023]
Abstract
Exposure to polycyclic aromatic hydrocarbons (PAHs) can be associated with different types of health effects. However, the systemic changes of health effects between fluctuations of PAHs exposure have not been established. In this study, urinary hydroxylated PAHs (OH-PAHs) and 12 biomarkers were determined among 36 students from the urban to the suburb in Taiyuan in 2019. The concentration of Σ12OH-PAHs in urban areas (28.2 and 21.4 μg/g Cr) was significantly higher than that in suburban area (16.8 μg/g Cr). The regression showed that hydroxy-phenanthrene (OH-Phe, 1/2/3/4/9-OH-Phe) was significantly positively correlated with lung function (PEF25 and PEF50), 8-hydroxydeoxyguanosine (8-OHdG), interleukin-8 (IL-8), and fractional exhaled nitric oxide (FeNO). Moreover, there were negative associations of 2-hydroxyfluorene (2-OH-Flu) with FVC and FEV1. 1 unit increase of 1-hydroxypyrene (1-OH-Pyr) was negatively associated with 18.8% FVC, 17.3% FEV1, and 26.4% PEF25 in the suburban location, respectively. During urban2, each unit change of 2-OH-Flu was associated with 10.9% FVC and 10.5% FEV1 decrease, which were higher than those in suburban location. 8-OHdG decreased by 32.0% with each unit increase in 3-hydroxyfluorene (3-OH-Flu) during urban2 (p < 0.05), while 1.9% in the suburban location. During the suburban period, the increase in OH-Phe was correlated with the decrease in malondialdehyde (MDA). The respiratory damage caused by PAHs in the urban disappeared after backing to the urban from the suburban area. Notably, despite the total significant liner mixed regression association of FeNO with multiple OH-PAHs, the association of FeNO with OH-PAHs was not significant during different periods except for 2-OH-Flu. Our findings suggested that short-term exposure to different concentrations of PAHs might cause changes in health effects and called for further research to investigate possible alterations between health effects and PAH exposure.
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Affiliation(s)
- Huilin Zhang
- Institute of Environmental Science, Shanxi University, Taiyuan 030006, China
| | - Ranran Liu
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University, Shandong Academy of Medical Sciences, Jinan 250062, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
| | - Liu Yang
- Institute of Environmental Science, Shanxi University, Taiyuan 030006, China
| | - Hong Cheng
- Institute of Environmental Science, Shanxi University, Taiyuan 030006, China
| | - Shengchun Wang
- Institute of Environmental Science, Shanxi University, Taiyuan 030006, China
| | - Bin Zhang
- Institute of Environmental Science, Shanxi University, Taiyuan 030006, China
| | - Jiyuan Shao
- Institute of Environmental Science, Shanxi University, Taiyuan 030006, China
| | - Shengtao Ma
- Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
| | - Dan Norbäck
- Department of Medical Sciences, Uppsala University, Uppsala SE-751, Sweden
| | - Xin Zhang
- Institute of Environmental Science, Shanxi University, Taiyuan 030006, China.
| | - Taicheng An
- Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
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Basu S, Song M, Adams L, Jeong I, Je G, Guhathakurta S, Jiang J, Boparai N, Dai W, Cardozo-Pelaez F, Tatulian SA, Han KY, Elliott J, Baum J, McLean PJ, Dickson DW, Kim YS. Transcriptional mutagenesis of α-synuclein caused by DNA oxidation in Parkinson's disease pathogenesis. Acta Neuropathol 2023; 146:685-705. [PMID: 37740734 PMCID: PMC10564827 DOI: 10.1007/s00401-023-02632-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 09/09/2023] [Accepted: 09/10/2023] [Indexed: 09/25/2023]
Abstract
Oxidative stress plays an essential role in the development of Parkinson's disease (PD). 8-oxo-7,8-dihydroguanine (8-oxodG, oxidized guanine) is the most abundant oxidative stress-mediated DNA lesion. However, its contributing role in underlying PD pathogenesis remains unknown. In this study, we hypothesized that 8-oxodG can generate novel α-synuclein (α-SYN) mutants with altered pathologic aggregation through a phenomenon called transcriptional mutagenesis (TM). We observed a significantly higher accumulation of 8-oxodG in the midbrain genomic DNA from PD patients compared to age-matched controls, both globally and region specifically to α-SYN. In-silico analysis predicted that forty-three amino acid positions can contribute to TM-derived α-SYN mutation. Here, we report a significantly higher load of TM-derived α-SYN mutants from the midbrain of PD patients compared to controls using a sensitive PCR-based technique. We found a novel Serine42Tyrosine (S42Y) α-SYN as the most frequently detected TM mutant, which incidentally had the highest predicted aggregation score amongst all TM variants. Immunohistochemistry of midbrain sections from PD patients using a newly characterized antibody for S42Y identified S42Y-laden Lewy bodies (LB). We further demonstrated that the S42Y TM variant significantly accelerates WT α-SYN aggregation by cell and recombinant protein-based assays. Cryo-electron tomography revealed that S42Y exhibits considerable conformational heterogeneity compared to WT fibrils. Moreover, S42Y exhibited higher neurotoxicity compared to WT α-SYN as shown in mouse primary cortical cultures and AAV-mediated overexpression in the substantia nigra of C57BL/6 J mice. To our knowledge, this is the first report describing the possible contribution of TM-generated mutations of α-SYN to LB formation and PD pathogenesis.
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Affiliation(s)
- Sambuddha Basu
- Burnett School of Biomedical Sciences, UCF College of Medicine, University of Central Florida, Orlando, FL, 32827, USA
| | - Minkyung Song
- Department of Neurology, Robert Wood Johnson Medical School, Institute for Neurological Therapeutics at Rutgers, Rutgers Biomedical and Health Sciences, 683 Hoes Lane West, Piscataway, NJ, 08854, USA
| | - Levi Adams
- Department of Neurology, Robert Wood Johnson Medical School, Institute for Neurological Therapeutics at Rutgers, Rutgers Biomedical and Health Sciences, 683 Hoes Lane West, Piscataway, NJ, 08854, USA
| | - Inhye Jeong
- Department of Neurology, Robert Wood Johnson Medical School, Institute for Neurological Therapeutics at Rutgers, Rutgers Biomedical and Health Sciences, 683 Hoes Lane West, Piscataway, NJ, 08854, USA
| | - Goun Je
- Burnett School of Biomedical Sciences, UCF College of Medicine, University of Central Florida, Orlando, FL, 32827, USA
| | - Subhrangshu Guhathakurta
- Burnett School of Biomedical Sciences, UCF College of Medicine, University of Central Florida, Orlando, FL, 32827, USA
| | - Jennifer Jiang
- Department of Cell Biology and Neuroscience, Institute for Quantitative Biomedicine, Rutgers University, Piscataway, NJ, 08854, USA
| | - Nikpreet Boparai
- Department of Cell Biology and Neuroscience, Institute for Quantitative Biomedicine, Rutgers University, Piscataway, NJ, 08854, USA
| | - Wei Dai
- Department of Cell Biology and Neuroscience, Institute for Quantitative Biomedicine, Rutgers University, Piscataway, NJ, 08854, USA
| | - Fernando Cardozo-Pelaez
- Center for Environmental Health Sciences, University of Montana, Missoula, MT, 59812, USA
- Center for Structural and Functional Neurosciences, University of Montana, Missoula, MT, 59812, USA
| | - Suren A Tatulian
- Department of Physics, University of Central Florida, Orlando, FL, 32816, USA
| | - Kyu Young Han
- CREOL, The College of Optics and Photonics, University of Central Florida, Orlando, FL, USA
| | - Jordan Elliott
- Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, NJ, 08854, USA
| | - Jean Baum
- Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, NJ, 08854, USA
| | - Pamela J McLean
- Department of Neuroscience, Mayo Clinic, 4500 San Pablo Rd, Jacksonville, FL, 32224, USA
| | - Dennis W Dickson
- Department of Neuroscience, Mayo Clinic, 4500 San Pablo Rd, Jacksonville, FL, 32224, USA
| | - Yoon-Seong Kim
- Department of Neurology, Robert Wood Johnson Medical School, Institute for Neurological Therapeutics at Rutgers, Rutgers Biomedical and Health Sciences, 683 Hoes Lane West, Piscataway, NJ, 08854, USA.
- Burnett School of Biomedical Sciences, UCF College of Medicine, University of Central Florida, Orlando, FL, 32827, USA.
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Xiong D, Chen Y, Zhu S, Liu L, Zhao L, Zeng C, Li Y, Wang H, Tu L, Zou K, Hou X, Yang L, Zhu L, Bai T. Exploring the relationship between urinary phthalate metabolites and Crohn's disease via oxidative stress, and the potential moderating role of gut microbiota: A conditional mediation model. Free Radic Biol Med 2023; 208:468-477. [PMID: 37690673 DOI: 10.1016/j.freeradbiomed.2023.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 08/31/2023] [Accepted: 09/07/2023] [Indexed: 09/12/2023]
Abstract
OBJECTIVE Interactions between phthalic acid esters (PAEs) exposure and Crohn's disease (CD) were unknown. This study aims to examine the association between exposure to PAEs and CD activity and to explore the roles of oxidative stress and microbiota. METHODS A cross-sectional study with 127 CD patients was conducted. The disease activity was evaluated based on symptoms (Harvey-Bradshaw index, HBI), endoscopy findings (Simple Endoscopic Score for CD, SES-CD), and computed tomography enterography (CTE-scores). Ten urinary PAEs metabolites (mPAEs), two urinary oxidative stress biomarkers, including 8-hydroxydeoxyguanosine (8-OHdG) and 8-iso-prostaglandin-F2α (8-iso-PGF2α), as well as 16S rRNA sequencing of stool samples were determined. Multiple linear regression models and Hayes's PROCESS macro for SPSS were used to evaluate the interplays between urinary PAEs metabolites, CD activities, oxidative stress, and microbiota diversity. RESULTS There were positive associations between most mPAEs and HBI. Oxidative stress mediated 20.69-89.29% of the indirect associations between low molecular weight (LMW) mPAEs and HBI, while the majority of the high molecular weight (HMW) mPAEs were directly associated with HBI. In addition, microbiota diversity moderated the indirect associations of LMW mPAEs on HBI. CONCLUSIONS PAEs exposure was related to CD activity, and the association could be mediated by oxidative stress and reversed or alleviated by rich gut microbiota.
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Affiliation(s)
- Danping Xiong
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Youli Chen
- State Key Laboratory for Oncogenes and Related Genes, NHC Key Laboratory of Digestive Diseases, Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Siran Zhu
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Linlin Liu
- State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education of the People's Republic of China, Wuhan, China
| | - Lei Zhao
- State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education of the People's Republic of China, Wuhan, China
| | - Cui Zeng
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yanling Li
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Huan Wang
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lei Tu
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kaifang Zou
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaohua Hou
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Liangle Yang
- State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education of the People's Republic of China, Wuhan, China.
| | - Liangru Zhu
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Tao Bai
- Division of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Pandiyan A, Lari S, Vanka J, Kumar BS, Ghosh S, Jee B, Jonnalagadda PR. Genetic Polymorphism in Xenobiotic Metabolising Genes and Increased Oxidative Stress among Pesticides Exposed Agricultural Workers Diagnosed with Cancers. Asian Pac J Cancer Prev 2023; 24:3795-3804. [PMID: 38019237 PMCID: PMC10772756 DOI: 10.31557/apjcp.2023.24.11.3795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 11/16/2023] [Indexed: 11/30/2023] Open
Abstract
BACKGROUND Oxidative stress combined with nullity of xenobiotic metabolizing GSTT1/GSTM1/CYP2E1 genes may increase the susceptibility of agricultural workers to adverse health effects including cancer. The present study was conducted to determine; the prevalence of polymorphisms in GSTM1, GSTT1 and CYP2E1 genes, serum 8-hydroxy-2'-deoxygunosine levels, and the role of these markers in risk of cancer among agricultural workers occupationally exposed to pesticides. METHODS A total of 360 participants, of which 180 belonging to farming group diagnosed with leukemia (n=60), lymphoma (n=60) and breast cancers (n=60), 90 in non-farming group diagnosed with similar cancers and the other 90 as healthy controls with neither history of occupational exposure nor diagnosed with any type of cancers were recruited. Following the questionnaire survey, serum 8-OHdG and genetic polymorphisms in the three genes were determined using ELISA and PCR methods respectively. RESULTS The results of the study revealed that farm workers carrying GSTT1 null genotype had increased risk for lymphoma (OR = 5.34; 95% CI = 1.80-15.82) and breast cancer (OR=4.04; 95% CI = 1.24-13.07). For farm workers carrying GSTM1 null genotype, the risk was six-fold for breast cancer (OR = 6.88; 95% CI =1.88-25.99). Further, there found a significant difference between 8-OHdG and nullity of CYP2E1 among the farm workers diagnosed with leukemia. CONCLUSION The findings of the present study suggest that the polymorphisms in detoxifying genes among farm workers occupationally exposed to pesticides and the oxidative stress may likely be responsible for triggering the mechanism of malignancy.
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Affiliation(s)
- Arun Pandiyan
- ICMR-National Institute of Nutrition, Tarnaka, Osmania University, PO, Hyderabad, Telangana 500007, India.
| | - Summaiya Lari
- ICMR-National Institute of Nutrition, Tarnaka, Osmania University, PO, Hyderabad, Telangana 500007, India.
- Department of Biochemistry, Acharya Nagarjuna University, Nagarjuna Nagar, Guntur, Andhra Pradesh 522510, India.
| | - Janardhan Vanka
- ICMR-National Institute of Nutrition, Tarnaka, Osmania University, PO, Hyderabad, Telangana 500007, India.
| | - Balakrishnan Senthil Kumar
- ICMR-National Institute of Nutrition, Tarnaka, Osmania University, PO, Hyderabad, Telangana 500007, India.
| | - Sudip Ghosh
- ICMR-National Institute of Nutrition, Tarnaka, Osmania University, PO, Hyderabad, Telangana 500007, India.
| | - Babban Jee
- Department of Health Research, Ministry of Health and Family Welfare, Government of India, Red Cross Road, New Delhi, 110001, India.
| | - Padmaja R Jonnalagadda
- ICMR-National Institute of Nutrition, Tarnaka, Osmania University, PO, Hyderabad, Telangana 500007, India.
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Maccarone J, Grady ST, Moy ML, Hart JE, Kang CM, Coull BA, Schwartz JD, Koutrakis P, Zhang J, Garshick E. Indoor (residential) and ambient particulate matter associations with urinary oxidative stress biomarkers in a COPD cohort. Sci Total Environ 2023; 897:165352. [PMID: 37419349 PMCID: PMC10529440 DOI: 10.1016/j.scitotenv.2023.165352] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/18/2023] [Accepted: 07/04/2023] [Indexed: 07/09/2023]
Abstract
OBJECTIVES Oxidative stress contributes to chronic obstructive pulmonary disease (COPD) pathophysiology. Associations between indoor (residential) exposure to particulate matter ≤2.5 μm in diameter (PM2.5) and one of its components, black carbon (BC), and oxidative stress are ill-defined. METHODS Between 2012 and 2017, 140 patients with COPD completed in-home air sampling over one week intervals, followed by collection of urine samples to measure oxidative stress biomarkers, malondialdehyde (MDA), a marker of lipid peroxidation, and 8-hydroxy-2' -deoxyguanosine (8-OHdG), a marker of oxidative DNA damage. Ambient (central site) BC and PM2.5 were measured, and the ratio of indoor/ambient sulfur in PM2.5, a surrogate for residential ventilation and particle infiltration, was used to estimate indoor BC and PM2.5 of outdoor origin. Mixed effects linear regression models with a participant-specific random intercept were used to assess associations with oxidative biomarkers, adjusting for personal characteristics. RESULTS There were positive associations (% increase per IQR; 95 % CI) of directly measured indoor BC with total MDA (6.96; 1.54, 12.69) and 8-OHdG (4.18; -0.67, 9.27), and similar associations with both indoor BC of outdoor origin and ambient BC. There were no associations with directly measured indoor PM2.5, but there were positive associations between indoor PM2.5 of outdoor origin and total MDA (5.40; -0.91, 12.11) and 8-OHdG (8.02; 2.14, 14.25). CONCLUSIONS In homes with few indoor combustion sources, directly measured indoor BC, estimates of indoor BC and PM2.5 of outdoor origin, and ambient BC, were positively associated with urinary biomarkers of oxidative stress. This suggests that the infiltration of particulate matter from outdoor sources, attributable to traffic and other sources of combustion, promotes oxidative stress in COPD patients.
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Affiliation(s)
- Jennifer Maccarone
- VA Boston Healthcare System, Boston, MA, USA; The Pulmonary Center, Boston University School of Medicine, Boston, MA, USA.
| | | | - Marilyn L Moy
- VA Boston Healthcare System, Boston, MA, USA; Harvard Medical School, Boston, MA, USA
| | - Jaime E Hart
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA; Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | | | - Brent A Coull
- Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Joel D Schwartz
- Harvard Medical School, Boston, MA, USA; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA; Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | | | - Junfeng Zhang
- Nicholas School of the Environment and Duke Global Health Institute, Duke University, Durham, NC, USA
| | - Eric Garshick
- VA Boston Healthcare System, Boston, MA, USA; Harvard Medical School, Boston, MA, USA; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
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Hu W, He Z, Du L, Zhang L, Li J, Ma Y, Bi S. Biomarkers of oxidative stress in broiler chickens attacked by lipopolysaccharide: A systematic review and meta-analysis. Ecotoxicol Environ Saf 2023; 266:115606. [PMID: 37866038 DOI: 10.1016/j.ecoenv.2023.115606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 10/13/2023] [Accepted: 10/14/2023] [Indexed: 10/24/2023]
Abstract
Oxidative stress (OS) constitutes a pivotal factor in the initiation and progression of lipopolysaccharide (LPS) challenges in broiler chickens. Increasing studies have demonstrated that Alleviation of oxidative stress seems to be a reasonable strategy to alleviate LPS-mediated afflictions in broilers. Nonetheless, the relationship between OS-related indicators and exposure to LPS remains a topic of debate. The aim of this investigation was to precisely and holistically evaluate the effect of LPS exposure on OS-associated markers. We conducted a systematic search of four electronic databases-PubMed, Web of Science, Scopus, and Cochrane for relevant studies, and a total of 31 studies were included. The overall results showed that the LPS treatment significantly increased the levels of oxygen radicals and their products, such as malondialdehydes (MDA), reactive oxygen species (ROS), and 8-hydroxy-2-deoxyguanosine (8-OHdG), while significantly reduced the levels of antioxidants, such as total antioxidative capacity (T-AOC), total superoxide dismutase (T-SOD), catalase (CAT), glutathione peroxidase (GSH-Px), and glutathione (GSH), in the chickens. Intriguingly, though the observed trends in alterations were not strictly correlated with LPS concentrations, the enzyme activity levels were indeed influenced by the concentration of LPS. This observation highlights the complex relationship between LPS exposure and the body's antioxidant response. Despite some limitations, all the included studies were deemed credible. Subgroup evaluations revealed that the jejunum and duodenum has demonstrated stronger antioxidant capability compared to other tissues. Overall, our study presents compelling evidence that exposure to LPS induces significant OS in chickens. And we also found that the extent of OS was related to LPS doses, target tissues, and dietary ingredients.
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Affiliation(s)
- Weidong Hu
- Department of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Southwest University, Rongchang, Chongqing 402460, PR China
| | - Zhengke He
- Department of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Southwest University, Rongchang, Chongqing 402460, PR China
| | - Lin Du
- Department of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Southwest University, Rongchang, Chongqing 402460, PR China
| | - Li Zhang
- Department of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Southwest University, Rongchang, Chongqing 402460, PR China
| | - Jun Li
- Department of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Southwest University, Rongchang, Chongqing 402460, PR China
| | - Yue Ma
- Institute of Traditional Chinese Veterinary Medicine,Southwest University, Rongchang, Chongqing 402460, PR China
| | - Shicheng Bi
- Department of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Southwest University, Rongchang, Chongqing 402460, PR China; Institute of Traditional Chinese Veterinary Medicine,Southwest University, Rongchang, Chongqing 402460, PR China.
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Karagöl G, Songur E, Rakıcıoğlu N. Dietary total antioxidant capacity and serum 8-OHdG in patients with schizophrenia. Int J Psychiatry Med 2023; 58:544-558. [PMID: 37210638 DOI: 10.1177/00912174231177638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
BACKGROUND Dietary total antioxidant capacity serves as an indicator for dietary quality and reflects daily antioxidant intake. This study aimed to determine the oxidative stress status of patients with schizophrenia and to examine the relationship between dietary total antioxidant capacity (dTAC) and 8-hydroxy-2'-deoxyguanosine (8-OHdG), a marker for oxidative stress. METHODS This study was conducted in Turkey and involved 40 patients diagnosed with schizophrenia or schizoaffective disorder according to the Diagnostic and Statistical Manual of Mental Disorders, 5th ed., and 30 healthy controls matched for age and gender. The participants' sociodemographic characteristics and nutritional habits were determined through face-to-face interviews and through the use of questionnaires. The dTAC and dietary oxidative balance scores were calculated using a three-day dietary intake record. 8-OHdG levels were analyzed in the serum samples collected from the subjects. RESULTS Dietary ferric reducing antioxidant power (FRAP-1, FRAP-2), Trolox equivalence antioxidant capacity (TEAC), and oxygen radical absorbance capacity (H-ORAC) values were lower in patients with schizophrenia than in the healthy controls (P < 0.05). Serum 8-OHdG levels were found similar in both groups (P > 0.05). CONCLUSION Nutritional interventions are needed in patients with schizophrenia given that insufficient antioxidant intake may increase oxidative stress, which in turn affects disease development. Therefore, healthy nutrition, especially sufficient intake of dietary antioxidants, should be encouraged in patients with schizophrenia.
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Affiliation(s)
- Gülbin Karagöl
- Faculty of Health Sciences, Department of Nutrition and Dietetics, Hacettepe University, Sıhhiye, Ankara, Turkey
| | - Emrah Songur
- Republic of Turkey Ministry of Health, Yıldırım Beyazıt University, Yenimahalle Education and Research Hospital, Yenimahalle, Ankara, Turkey
| | - Neslişah Rakıcıoğlu
- Faculty of Health Sciences, Department of Nutrition and Dietetics, Hacettepe University, Sıhhiye, Ankara, Turkey
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Nanri H, Hara M, Nishida Y, Shimanoe C, Li YS, Kasai H, Kawai K, Higaki Y, Tanaka K. The Association between Oxidative Balance Score and Urinary Levels of 8-Hydroxydeoxyguanosine among Japanese Adults. Nutrients 2023; 15:4533. [PMID: 37960186 PMCID: PMC10647214 DOI: 10.3390/nu15214533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 10/21/2023] [Accepted: 10/24/2023] [Indexed: 11/15/2023] Open
Abstract
The oxidative balance score (OBS), wherein higher OBSs indicate lower oxidative stress, was designed to assess a composite measure of multiple pro-oxidant and antioxidant effects on an individual's oxidative stress status. This study aimed to evaluate whether OBSs were inversely associated with urinary levels of 8-hydroxydeoxyguanosine (8-OHdG)-an oxidative stress marker-among Japanese adults. This cross-sectional study was based on data obtained during 2010-2012. Overall, 7552 participants from the J-MICC Study Saga who answered a self-administered food frequency questionnaire were recruited for the final analysis. OBSs were calculated from 11 pro-oxidant and antioxidant lifestyle factors, including dietary intake, physical activity, and alcohol and smoking status. Urinary 8-OHdG values were corrected by creatinine level (ng/mg creatinine). Our findings revealed a higher total OBS was significantly associated with lower urinary 8-OHdG/creatinine levels after adjustment for covariates in men and women (p for trend < 0.01 in both sexes). We performed a multiple regression analysis of the association between OBSs and urinary 8-OHdG/creatinine levels stratified by age, body mass index (BMI), and menopausal status and found consistent negative associations in most groups for both sexes. No significant differences in the 60-64 age group for women (standardized β = -0.09, p = 0.13) or BMI < 18.5 kg/m2 for men (standardized β = -0.18, p = 0.17) were observed. A higher OBS had a strong inverse association with urinary 8-OHdG/creatinine levels in men and women among Japanese adults. The OBS might be a useful tool for evaluating the roles of oxidative stress-related lifestyle factors, including diet.
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Affiliation(s)
- Hinako Nanri
- Department of Physical Activity Research, National Institutes of Biomedical Innovation, Health, and Nutrition, Osaka 566-0002, Japan
- Laboratory of Gut Microbiome for Health, Microbial Research Center for Health and Medicine, National Institutes of Biomedical Innovation, Health, and Nutrition, Osaka 567-0085, Japan
| | - Megumi Hara
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Saga 849-8501, Japan; (M.H.); (Y.N.); (K.T.)
| | - Yuichiro Nishida
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Saga 849-8501, Japan; (M.H.); (Y.N.); (K.T.)
| | - Chisato Shimanoe
- Department of Pharmacy, Saga University Hospital, Saga 849-8501, Japan;
| | - Yun-Shan Li
- Department of Environmental Oncology, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan; (Y.-S.L.); (H.K.)
| | - Hiroshi Kasai
- Department of Environmental Oncology, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan; (Y.-S.L.); (H.K.)
| | - Kazuaki Kawai
- Department of Environmental Oncology, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan; (Y.-S.L.); (H.K.)
| | - Yasuki Higaki
- Laboratory of Exercise Physiology, Faculty of Sports and Health Science, Fukuoka University, Fukuoka 814-0180, Japan;
| | - Keitaro Tanaka
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Saga 849-8501, Japan; (M.H.); (Y.N.); (K.T.)
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Zhu WR, Chai K, Fang F, He SR, Li YY, Du MH, Li JJ, Yang JF, Cai JP, Wang H. [Pathological study on the relationship between nucleic acid oxidative stress and heart failure with preserved ejection fraction in patients aged over 85 years]. Zhonghua Xin Xue Guan Bing Za Zhi 2023; 51:1063-1068. [PMID: 37859358 DOI: 10.3760/cma.j.cn112148-20230625-00373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
Objective: To investigate the level of nucleic acid oxidation in myocardial tissue of patients aged over 85 with heart failure with preserved ejection fraction (HFpEF) and the correlation with myocardial amyloid deposition. Methods: This was a retrospective case-control study. Data of patients≥85 years old who underwent systematic pathological autopsy in Beijing Hospital from 2003 to 2017 were retrospectively collected. Twenty-six patients were included in the HFpEF group and 13 age-and sex-matched patients who had not been diagnosed with heart failure and died of non-cardiovascular diseases served as the control group. The left ventricular myocardium slices of both groups were semi-quantitatively analyzed using immunohistochemical staining of 8-oxidized guanine riboside (8-oxo-G) and 8-oxidized guanine deoxyriboside (8-oxo-dG) to evaluate the oxidation of RNA and DNA in cardiomyocytes. Using the median of the mean absorbance value of 8-oxo-G immunohistochemical staining as the cut-off value, patients were divided into high-absorbance group and low-absorbance group. Congo red staining was used to compare myocardial amyloid deposition between the two groups. Results: The mean age of patients in HFpEF group was (91.8±3.7) years, 24 (92.3%) were males. The mean age of patients in control group was (91.7±3.7) years old, 11 (84.6%) were males. The median mean optical absorbance value of 8-oxo-G immunohistochemical staining of myocardium was significantly higher in HFpEF patients than in control group (0.313 8 (0.302 2, 0.340 6) vs. 0.289 2 (0.276 7, 0.299 4), Z=-3.245, P=0.001). The median mean absorbance value of 8-oxo-dG immunohistochemical staining of myocardial tissue was similar between the two groups (0.300 0 (0.290 0, 0.322 5) vs. 0.300 0 (0.290 0, 0.320 0), Z=-0.454, P=0.661). Proportion of patients with moderate and severe cardiac amyloid deposition was significantly higher in the high-absorbance group than in the low-absorbance group ((85.0%, 17/20) vs. (31.6%, 6/19), P=0.001). Conclusion: The RNA oxidation degree of myocardium in HFpEF patients is higher than that in elderly people without heart failure. Degree of myocardial amyloid deposits is higher in patients with high levels of RNA oxidation.
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Affiliation(s)
- W R Zhu
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - K Chai
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - F Fang
- Department of Pathology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - S R He
- Department of Pathology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Y Li
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - M H Du
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J J Li
- Department of Pathology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J F Yang
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J P Cai
- Beijing Hospital, Beijing Institute of Geriatrics, the Key Laboratory of Geriatrics, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H Wang
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
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Souza MCO, González N, Rovira J, Herrero M, Marquès M, Nadal M, Barbosa F, Domingo JL. Assessment of urinary aromatic amines in Brazilian pregnant women and association with DNA damage: Influence of genetic diversity, lifestyle, and environmental and socioeconomic factors. Environ Pollut 2023; 335:122366. [PMID: 37572848 DOI: 10.1016/j.envpol.2023.122366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/09/2023] [Accepted: 08/10/2023] [Indexed: 08/14/2023]
Abstract
Aromatic amines (AAs) are polar organic chemicals with a wide environmental distribution originating from various sources, such as tobacco smoke, diesel exhaust, and dermal absorption from textile products with azo dyes. The toxicity profile of AAs is directly related to the amino group's metabolic activation and the generation of the reactive intermediate, forming DNA adducts and potential carcinogenicity. Urinary levels of 8-hydroxy-2'-deoxyguanosine (8OHdG) are an important biomarker of DNA damage. Since AAs have been shown to cross the placental barrier, being a risk factor for adverse birth outcomes, prenatal exposure is a great public health concern. The present study aimed to measure the urinary levels of 58 AAs in Brazilian pregnant women (n = 300) and investigated the impact of this exposure on DNA damage by quantifying 8OHdG levels. The influence of tobacco smoke exposure and dermal absorption of AAs by clothes on urinary levels was also assessed. The results showed a 100% detection rate for eight AAs, two of them regulated by the European Union (2,6-dimethylaniline and 2,4-diaminotolune). Hundreds of AAs may be derived from aniline, which here showed a median of 1.38 ng/mL. Aniline also correlated positively with 2,6-dimethylaniline, p-aminophenol, and other AAs, suggesting exposure to multiple sources. The present findings suggest that both tobacco smoke and dermal contact with clothes containing azo dyes are potential sources that might strongly influence urinary levels of AAs in Brazilian pregnant women. A multiple regression linear model (R2 = 0.772) suggested that some regulated AAs (i.e., 2-naphthylamine and 4-aminobiphenyl), nicotine, smoke habit, age, and Brazilian region could induce DNA damage occurrence, increasing the levels of 8OHdG. Given the limited available data on human exposure to carcinogenic AAs, as well as the lack of toxicological information on those non-regulated, further studies focused on measuring their levels in human fluids and the potential exposure sources are clearly essential.
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Affiliation(s)
- Marília Cristina Oliveira Souza
- University of Sao Paulo, School of Pharmaceutical Sciences of Ribeirao Preto, Department of Clinical Analyses, Toxicology, and Food Sciences (Analytical and System Toxicology Laboratory), Avenida do Café s/n◦, 14040-903, Ribeirao Preto, Sao Paulo, Brazil; Universitat Rovira i Virgili, Laboratory of Toxicology and Environmental Health, School of Medicine, Sant Llorenç 21, 43201, Reus, Catalonia, Spain; Institut d'Investigació Sanitària Pere Virgili (IISPV), 43204, Reus, Catalonia, Spain.
| | - Neus González
- University of Sao Paulo, School of Pharmaceutical Sciences of Ribeirao Preto, Department of Clinical Analyses, Toxicology, and Food Sciences (Analytical and System Toxicology Laboratory), Avenida do Café s/n◦, 14040-903, Ribeirao Preto, Sao Paulo, Brazil; Universitat Rovira i Virgili, Laboratory of Toxicology and Environmental Health, School of Medicine, Sant Llorenç 21, 43201, Reus, Catalonia, Spain; Institut d'Investigació Sanitària Pere Virgili (IISPV), 43204, Reus, Catalonia, Spain
| | - Joaquim Rovira
- Universitat Rovira i Virgili, Laboratory of Toxicology and Environmental Health, School of Medicine, Sant Llorenç 21, 43201, Reus, Catalonia, Spain; Institut d'Investigació Sanitària Pere Virgili (IISPV), 43204, Reus, Catalonia, Spain; Environmental Engineering Laboratory, Department of Chemical Engineering, University Rovira and Virgili, Paisos Catalans Avenue 26, 43007, Tarragona, Catalonia, Spain
| | - Marta Herrero
- Universitat Rovira i Virgili, Laboratory of Toxicology and Environmental Health, School of Medicine, Sant Llorenç 21, 43201, Reus, Catalonia, Spain; Institut d'Investigació Sanitària Pere Virgili (IISPV), 43204, Reus, Catalonia, Spain
| | - Montse Marquès
- Universitat Rovira i Virgili, Laboratory of Toxicology and Environmental Health, School of Medicine, Sant Llorenç 21, 43201, Reus, Catalonia, Spain; Institut d'Investigació Sanitària Pere Virgili (IISPV), 43204, Reus, Catalonia, Spain
| | - Martí Nadal
- Universitat Rovira i Virgili, Laboratory of Toxicology and Environmental Health, School of Medicine, Sant Llorenç 21, 43201, Reus, Catalonia, Spain; Institut d'Investigació Sanitària Pere Virgili (IISPV), 43204, Reus, Catalonia, Spain
| | - Fernando Barbosa
- University of Sao Paulo, School of Pharmaceutical Sciences of Ribeirao Preto, Department of Clinical Analyses, Toxicology, and Food Sciences (Analytical and System Toxicology Laboratory), Avenida do Café s/n◦, 14040-903, Ribeirao Preto, Sao Paulo, Brazil
| | - José Luis Domingo
- Universitat Rovira i Virgili, Laboratory of Toxicology and Environmental Health, School of Medicine, Sant Llorenç 21, 43201, Reus, Catalonia, Spain; Institut d'Investigació Sanitària Pere Virgili (IISPV), 43204, Reus, Catalonia, Spain
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Zhang Z, Yang Y, Hu C, Zhang Z. Effect of pachymaran on oxidative stress and DNA damage induced by formaldehyde. Sci Rep 2023; 13:17465. [PMID: 37838763 PMCID: PMC10576801 DOI: 10.1038/s41598-023-44788-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 10/12/2023] [Indexed: 10/16/2023] Open
Abstract
To further explore the pharmacological effect of pachymaran, this article studied the inhibition of pachymaran on oxidative stress and genetic damage induced by formaldehyde. 40 adult Kunming male mice were randomly divided into four groups with different interventions. One week later, the contents of serum SOD, GR, MDA, DNA-protein crosslink (DPC), 8-hydroxydeoxyguanosine (8-OHDG) and DNA adduct were determined by ELISA. The results showed that there were statistically significant differences in the contents of SOD, GR and MDA among the four groups (P < 0.01). The activity of SOD and GR increased along with the increase of pachymaran dosage (SOD: rs = 0.912, P < 0.01; GR: rs = 0.857, P < 0.01), while the content of MDA showing a significant negative correlation (rs = - 0.893, P < 0.01). There were statistically significant differences in the levels of DPC, 8-OHDG and DNA adduct among the four groups (DPC and DNA adduct: P < 0.01, 8-OHDG: P < 0.05), the concentration decreased along with the increase of pachymaran dosage (DPC: rs = - 0.855, P < 0.01; 8-OHDG:rs = - 0.412, P < 0.05, DNA adduct: γs = - 0.869, P < 0.01). It can be inferred that pachymaran can inhibit oxidative stress and DNA damage induced by formaldehyde with the dose-effect relationship.
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Affiliation(s)
- Zhijun Zhang
- College of Public Health and Laboratory Medicine, Hunan University of Medicine, 492 Jinxi South Road, Huaihua, Hunan, 418000, People's Republic of China
| | - Yuan Yang
- College of Public Health and Laboratory Medicine, Hunan University of Medicine, 492 Jinxi South Road, Huaihua, Hunan, 418000, People's Republic of China
| | - Changjun Hu
- College of Public Health and Laboratory Medicine, Hunan University of Medicine, 492 Jinxi South Road, Huaihua, Hunan, 418000, People's Republic of China.
| | - Zaiqi Zhang
- Hunan Provincial Key Laboratory of Dong Medicine, Hunan University of Medicine, Huaihua, Hunan, 418000, People's Republic of China
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Peng P, He M, Fang W, Lai M, Xiao F, He W, Xiao H, Wei Q. Plasma 8-OHdG act as a biomarker for steroid-induced osteonecrosis of the femoral head. BMC Musculoskelet Disord 2023; 24:808. [PMID: 37828532 PMCID: PMC10568778 DOI: 10.1186/s12891-023-06804-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 08/16/2023] [Indexed: 10/14/2023] Open
Abstract
BACKGROUND Oxidative stress was closely related to the occurrence and development of Steroid-induced osteonecrosis of the femoral head (SIONFH). 8-hydroxy-2'-deoxyguanosine (8-OHdG) is a important index of oxidative stress. The aim of this study is to investigate the role of 8-OHdG in the development of SIONFH. METHODS From May 2021 and November 2021, 33 patients diagnosed with SIONFH and 26 healthy controls were recruited in this study. Assessment included the radiography and pathology evaluation of clinical bone tissue, expression position and level of 8-OHdG, level of plasma 8-OHdG, as well as the receiver operating characteristic (ROC) curve. RESULTS We observed that expression levels of 8-OHdG in bone samples decreased with Association Research Circulation Osseous (ARCO) stages. Plasma 8-OHdG levels were significantly increased in the SIONFH group compared to the healthy control group. Plasma 8-OHdG level of pre-collapse patients was higher than that of post-collapse patients, the decreased plasma 8-OHdG level was related to higher ARCO stages. CONCLUSION Plasma 8-OHdG may represent potential biomarkers during SIONFH at different stages. Higher plasma 8-OHdG levels indicated early stage of SIONFH. The current study provided new clues for early diagnosis and treatment for SIONFH.
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Affiliation(s)
- Peng Peng
- Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Mincong He
- Guangdong Research Institute for Orthopedics and Traumatology of Chinese Medicine, Guangzhou, 510378, China
- Department of Orthopaedics, The Third Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, 510378, China
| | - Weihua Fang
- Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Mengqi Lai
- Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Fangjun Xiao
- Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Wei He
- Guangdong Research Institute for Orthopedics and Traumatology of Chinese Medicine, Guangzhou, 510378, China
- Department of Orthopaedics, The Third Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, 510378, China
| | - Huan Xiao
- Department of Orthopedics, Bijie Traditional Chinese Medicine Hospital, Bijie, 551700, China.
| | - Qiushi Wei
- Guangdong Research Institute for Orthopedics and Traumatology of Chinese Medicine, Guangzhou, 510378, China.
- Department of Orthopaedics, The Third Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, 510378, China.
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Simpson R, Praditsuktavorn B, Wall J, Morales V, Thiemermann C, Tremoleda JL, Brohi K. Myocardial alterations following traumatic hemorrhagic injury. J Trauma Acute Care Surg 2023; 95:481-489. [PMID: 37249511 DOI: 10.1097/ta.0000000000003987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
BACKGROUND Cardiac dysfunction (CD) has emerged as a key contributor to delayed organ failure and late mortality in patients surviving the initial traumatic hemorrhagic response. Inflammatory processes are implicated in the initial stages of this CD; however, downstream pathways leading to a characteristic rapid fall in stroke volume and cardiac output are not yet fully defined. Currently, no cardioprotective treatments are available. We investigated the role of myocardial oxidative stress in the pathogenesis of CD associated to traumatic hemorrhagic injury, and its related metabolomic profile. METHODS Ex vivo tissue from a 3-hour murine model of pressure-controlled trauma hemorrhagic shock (THS) was analyzed. Animals were randomized to echocardiography-guided crystalloid fluid resuscitation or a control group (sham: cannulation and anesthesia only, or naïve: no intervention). Trauma hemorrhagic shock and naïve samples were assessed by immunohistochemistry for nuclear 8-hydroxy-2'-deoxyguanosine expression as a marker of oxidative stress. Metabolomic analysis of THS and sham group tissue was performed by LC-MS. RESULTS 8-Hydroxy-2'-deoxyguanosine expression across the myocardium was significantly higher following THS injury compared to naïve group (33.01 ± 14.40% vs. 15.08 ± 3.96%, p < 0.05). Trauma hemorrhagic shock injury significantly increased lysine ( p = 0.022), and decreased aconitate ( p = 0.016) and glutamate ( p = 0.047) in the myocardium, indicating activation of a catabolic metabolism and oxidative stress response. CONCLUSION We confirm the acute development of oxidative stress lesions and altered cardiac energy metabolism following traumatic hemorrhage injury, providing insight into the relationship between inflammatory damage and impaired cardiac contractility. These findings may provide targets for development of novel cardioprotective therapeutics aiming to decrease late mortality from trauma.
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Affiliation(s)
- Rebecca Simpson
- From the Centre for Trauma Sciences, Blizard Institute (R.S., B.P., J.W., C.T., J.L.T., K.B.), Metabolomics Core Facility, Barts Cancer Institute (V.M.), Centre for Translational Medicine and Therapeutics, William Harvey Research Institute (C.T.), Barts and the London School of Medicine and Dentistry, Queen Mary University, London, United Kingdom
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Tomoda F, Koike T, Nitta A, Kurosaki H, Sugimori H, Oh-Hara M, Kinugawa K. Urinary levels of cortisol but not catecholamines are associated with those of 8-hydroxy-2'-deoxyguanosine in uncomplicated primary hypertension. J Hypertens 2023; 41:1571-1577. [PMID: 37642591 DOI: 10.1097/hjh.0000000000003507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
OBJECTIVES The relationships between stress hormones and oxidative DNA damage have not yet been explored in human hypertension. We investigated the associations of urinary levels of cortisol or catecholamines with those of 8-hydroxy-2'-deoxyguanosine, a marker of oxidative DNA damage in primary hypertension. METHODS Untreated 156 primary hypertensives without apparent cardiovascular diseases were entered into the study. Following blood sampling after an overnight fast, 24-h blood pressure monitoring and 24-h urinary sampling were performed simultaneously to determine 24-h averaged values for blood pressure and urinary levels of cortisol, catecholamines and 8-hydroxy-2'-deoxyguanosine. RESULTS Urinary cortisol significantly correlated positively with urinary 8-hydroxy-2'-deoxyguanosine in all studied participants (r = 0.334, P < 0.001). Contrary, either urinary adrenaline or urinary noradrenaline did not significantly correlate with urinary 8-hydroxy-2'-deoxyguanosine (r = 0.050, P = 0.553 or r = 0.063, P = 0.435). Additionally, the positive association of urinary cortisol with urinary 8-hydroxy-2'-deoxyguanosine remained highly significant after the adjustments for multiple confounders of oxidative stress such as age, gender, body mass index, smoking status, 24-h blood pressure, C-reactive protein and estimated glomerular filtration rate (partial r = 0.323, P < 0.001), although only approximately 10% of the variance in urinary cortisol was attributable to differences in urinary 8-OHdG (partial r2 = 0.104). Thus, our data indicate that cortisol but not catecholamines could at least partially contribute to the occurrence of oxidative DNA damage in primary hypertensives. CONCLUSION The present study suggested the possibility that the overactivation of hypothalamic-pituitary-adrenal axis rather than sympathoadrenal system could enhance oxidative stress and attendant DNA oxidation in uncomplicated primary hypertension.
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Affiliation(s)
- Fumihiro Tomoda
- The Faculty of Health Science, Fukui Health Science University, Fukui
- The Second Department of Internal Medicine
| | | | - Atsumi Nitta
- The Department of Pharmaceutical Therapy & Neuropharmacology, University of Toyama, Toyama, Japan
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Xu Y, Li Y, Zhai D, Yan C, Liang J, Ichinomiya T, Hara T, Inadomi C, Li TS. Hyperoxia but not high tidal volume contributes to ventilator-induced lung injury in healthy mice. BMC Pulm Med 2023; 23:354. [PMID: 37730597 PMCID: PMC10510264 DOI: 10.1186/s12890-023-02626-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 08/31/2023] [Indexed: 09/22/2023] Open
Abstract
BACKGROUND Mechanical ventilation is a supportive therapy used to maintain respiratory function in several clinical and surgical cases but is always accompanied by lung injury risk due to improper treatment. We investigated how tidal volume and oxygen delivery would contribute independently or synergistically to ventilator-induced lung injury (VILI). METHODS Under general anesthesia and tracheal intubation, healthy female C57BL/6 N mice (9 weeks old) were randomly ventilated for 2 h by standard (7 ml/kg) or high (14 ml/kg) tidal volume at positive end-expiratory pressure (PEEP) of 2 cmH2O, with room air, 50% O2 (moderate hyperoxia), or 100% O2 (severe hyperoxia); respectively. Mice were sacrificed 4 h after mechanical ventilation, and lung tissues were collected for experimental assessments on lung injury. RESULTS Compared with the healthy control, severe hyperoxia ventilation by either standard or high tidal volume resulted in significantly higher wet-to-dry lung weight ratio and higher levels of IL-1β and 8-OHdG in the lungs. However, moderate hyperoxia ventilation, even by high tidal volume did not significantly increase the levels of IL-1β and 8-OHdG in the lungs. Western blot analysis showed that the expression of RhoA, ROCK1, MLC2, and p-MLC2 was not significantly induced in the ventilated lungs, even by high tidal volume at 2 cmH2O PEEP. CONCLUSION Severe hyperoxia ventilation causes inflammatory response and oxidative damage in mechanically ventilated lungs, while high tidal volume ventilation at a reasonable PEEP possibly does not cause VILI.
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Affiliation(s)
- Yong Xu
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Yu Li
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang City, 330006, Jiangxi Province, China
| | - Da Zhai
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Chen Yan
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Jingyan Liang
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225000, Jiangsu, P.R. China
| | - Taiga Ichinomiya
- Department of Anesthesiology and Intensive Care Medicine, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Tetsuya Hara
- Department of Anesthesiology and Intensive Care Medicine, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan
| | - Chiaki Inadomi
- Department of Anesthesiology and Intensive Care Medicine, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, 852-8501, Japan.
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan.
- Department of Stem Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan.
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