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Cui Y, Du X, Li Y, Wang D, Lv Z, Yuan H, Chen Y, Liu J, Sun Y, Wang W. Imbalanced and Unchecked: The Role of Metal Dyshomeostasis in Driving COPD Progression. COPD 2024; 21:2322605. [PMID: 38591165 DOI: 10.1080/15412555.2024.2322605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 02/19/2024] [Indexed: 04/10/2024]
Abstract
Chronic obstructive pulmonary disease (COPD) is a chronic respiratory condition characterized by persistent inflammation and oxidative stress, which ultimately leads to progressive restriction of airflow. Extensive research findings have cogently suggested that the dysregulation of essential transition metal ions, notably iron, copper, and zinc, stands as a critical nexus in the perpetuation of inflammatory processes and oxidative damage within the lungs of COPD patients. Unraveling the intricate interplay between metal homeostasis, oxidative stress, and inflammatory signaling is of paramount importance in unraveling the intricacies of COPD pathogenesis. This comprehensive review aims to examine the current literature on the sources, regulation, and mechanisms by which metal dyshomeostasis contributes to COPD progression. We specifically focus on iron, copper, and zinc, given their well-characterized roles in orchestrating cytokine production, immune cell function, antioxidant depletion, and matrix remodeling. Despite the limited number of clinical trials investigating metal modulation in COPD, the advent of emerging methodologies tailored to monitor metal fluxes and gauge responses to chelation and supplementation hold great promise in unlocking the potential of metal-based interventions. We conclude that targeted restoration of metal homeostasis represents a promising frontier for ameliorating pathological processes driving COPD progression.
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Affiliation(s)
- Ye Cui
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, Beijing, People's Republic of China
| | - Xinqian Du
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, Beijing, People's Republic of China
| | - Yunqi Li
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, Beijing, People's Republic of China
| | - Dan Wang
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, Beijing, People's Republic of China
| | - Zhe Lv
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, Beijing, People's Republic of China
| | - Huihui Yuan
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, Beijing, People's Republic of China
| | - Yan Chen
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, Beijing, People's Republic of China
| | - Jie Liu
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, Beijing, People's Republic of China
| | - Ying Sun
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, Beijing, People's Republic of China
| | - Wei Wang
- Department of Immunology, School of Basic Medical Sciences, Capital Medical University, Beijing, People's Republic of China
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Sauvain JJ, Hemmendinger M, Charreau T, Jouannique V, Debatisse A, Suárez G, Hopf NB, Guseva Canu I. Metal and oxidative potential exposure through particle inhalation and oxidative stress biomarkers: a 2-week pilot prospective study among Parisian subway workers. Int Arch Occup Environ Health 2024; 97:387-400. [PMID: 38504030 PMCID: PMC10999389 DOI: 10.1007/s00420-024-02054-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 02/05/2024] [Indexed: 03/21/2024]
Abstract
OBJECTIVE In this pilot study on subway workers, we explored the relationships between particle exposure and oxidative stress biomarkers in exhaled breath condensate (EBC) and urine to identify the most relevant biomarkers for a large-scale study in this field. METHODS We constructed a comprehensive occupational exposure assessment among subway workers in three distinct jobs over 10 working days, measuring daily concentrations of particulate matter (PM), their metal content and oxidative potential (OP). Individual pre- and post-shift EBC and urine samples were collected daily. Three oxidative stress biomarkers were measured in these matrices: malondialdehyde (MDA), 8-hydroxy-2'deoxyguanosine (8-OHdG) and 8-isoprostane. The association between each effect biomarker and exposure variables was estimated by multivariable multilevel mixed-effect models with and without lag times. RESULTS The OP was positively associated with Fe and Mn, but not associated with any effect biomarkers. Concentration changes of effect biomarkers in EBC and urine were associated with transition metals in PM (Cu and Zn) and furthermore with specific metals in EBC (Ba, Co, Cr and Mn) and in urine (Ba, Cu, Co, Mo, Ni, Ti and Zn). The direction of these associations was both metal- and time-dependent. Associations between Cu or Zn and MDAEBC generally reached statistical significance after a delayed time of 12 or 24 h after exposure. Changes in metal concentrations in EBC and urine were associated with MDA and 8-OHdG concentrations the same day. CONCLUSION Associations between MDA in both EBC and urine gave opposite response for subway particles containing Zn versus Cu. This diverting Zn and Cu pattern was also observed for 8-OHdG and urinary concentrations of these two metals. Overall, MDA and 8-OHdG responses were sensitive for same-day metal exposures in both matrices. We recommend MDA and 8-OHdG in large field studies to account for oxidative stress originating from metals in inhaled particulate matter.
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Affiliation(s)
- Jean-Jacques Sauvain
- Department of Occupational and Environmental Health, Center for Primary Care and Public Health (Unisanté), University Lausanne, Route de la Corniche 2, 1066, Epalinges, Switzerland.
| | - Maud Hemmendinger
- Department of Occupational and Environmental Health, Center for Primary Care and Public Health (Unisanté), University Lausanne, Route de la Corniche 2, 1066, Epalinges, Switzerland
| | - Thomas Charreau
- Department of Occupational and Environmental Health, Center for Primary Care and Public Health (Unisanté), University Lausanne, Route de la Corniche 2, 1066, Epalinges, Switzerland
| | - Valérie Jouannique
- Service Santé-Travail, Régie autonome des transports parisiens (RATP), 88 Boulevard Sébastopol, 75003, Paris, France
| | - Amélie Debatisse
- Service Santé-Travail, Régie autonome des transports parisiens (RATP), 88 Boulevard Sébastopol, 75003, Paris, France
| | - Guillaume Suárez
- Department of Occupational and Environmental Health, Center for Primary Care and Public Health (Unisanté), University Lausanne, Route de la Corniche 2, 1066, Epalinges, Switzerland
| | - Nancy B Hopf
- Department of Occupational and Environmental Health, Center for Primary Care and Public Health (Unisanté), University Lausanne, Route de la Corniche 2, 1066, Epalinges, Switzerland
| | - Irina Guseva Canu
- Department of Occupational and Environmental Health, Center for Primary Care and Public Health (Unisanté), University Lausanne, Route de la Corniche 2, 1066, Epalinges, Switzerland
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Jadoon S, Ali Q, Sami A, Haider MZ, Ashfaq M, Javed MA, Khan MA. DNA damage in inhabitants exposed to heavy metals near Hudiara drain, Lahore, Pakistan. Sci Rep 2024; 14:8408. [PMID: 38600156 PMCID: PMC11006874 DOI: 10.1038/s41598-024-58655-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 04/02/2024] [Indexed: 04/12/2024] Open
Abstract
The current study was conducted on the inhabitants living in the area adjacent to the Hudiara drain using bore water and vegetables adjacent to the Hudiara drain. Toxic heavy metals badly affect human health because of industrial environmental contamination. Particularly hundreds of millions of individuals globally have faced the consequences of consuming water and food tainted with pollutants. Concentrations of heavy metals in human blood were elevated in Hudiara drainings in Lahore city, Pakistan, due to highly polluted industrial effluents. The study determined the health effects of high levels of heavy metals (Cd, Cu, Zn, Fe, Pb, Ni, Hg, Cr) on residents of the Hudiara draining area, including serum MDA, 8-Isoprostane, 8-hydroxyguanosine, and creatinine levels. An absorption spectrophotometer was used to determine heavy metals in wate water, drinking water, soil, plants and human beings blood sampleas and ELISA kits were used to assess the level of 8-hydroxyguanosine, MDA, 8-Isoprostane in plasma serum creatinine level. Waste water samples, irrigation water samples, drinking water samples, Soil samples, Plants samples and blood specimens of adult of different weights and ages were collected from the polluted area of the Hudiara drain (Laloo and Mohanwal), and control samples were obtained from the unpolluted site Sheiikhpura, 60 km away from the site. Toxic heavy metals in blood damage the cell membrane and DNA structures, increasing the 8-hydroxyguanosine, MDA, creatinine, and 8-Isoprostane. Toxic metals contaminated bore water and vegetables, resulting in increased levels of creatinine, MDA, Isoprostane, and 8-hydroxy-2-guanosine in the blood of inhabitants from the adjacent area Hudiara drain compared to the control group. In addition,. This study also investigated heavy metal concentrations in meat and milk samples from buffaloes, cows, and goats. In meat, cow samples showed the highest Cd, Cu, Fe and Mn concentrations. In milk also, cows exhibited elevated Cu and Fe levels compared to goats. The results highlight species-specific variations in heavy metal accumulation, emphasizing the need for targeted monitoring to address potential health risks. The significant difference between the two groups i.e., the control group and the affected group, in all traits of the respondents (weight, age, heavy metal values MDA, 8-Isoprostane, 8-hydroxyguaniosine, and serum creatinine level). Pearson's correlation coefficient was calculated. The study has shown that the level of serum MDA, 8-Isoprostane, 8-hydroxyguaniosine, or creatinine has not significantly correlated with age, so it is independent of age. This study has proved that in Pakistan, the selected area of Lahore in the villages of Laloo and Mohanwal, excess of heavy metals in the human body damages the DNA and increases the level of 8-Isoprostane, MDA, creatinine, and 8-hydroxyguaniosine. As a result, National and international cooperation must take major steps to control exposure to heavy metals.
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Affiliation(s)
- Saima Jadoon
- Directorate of Curriculum and Teaching Education, Abbottabad, Pakistan.
- Institute of Molecular Biology and Biotechnology, University of Lahore, Lahore, Pakistan.
| | - Qurban Ali
- Department of Plant Breeding and Genetics, Faculty of Agricultural Sciences, University of the Punjab, P.O BOX. 54590, Lahore, Pakistan.
| | - Adnan Sami
- Department of Plant Breeding and Genetics, Faculty of Agricultural Sciences, University of the Punjab, P.O BOX. 54590, Lahore, Pakistan
| | - Muhammad Zeeshan Haider
- Department of Plant Breeding and Genetics, Faculty of Agricultural Sciences, University of the Punjab, P.O BOX. 54590, Lahore, Pakistan
| | - Muhammad Ashfaq
- Department of Plant Breeding and Genetics, Faculty of Agricultural Sciences, University of the Punjab, P.O BOX. 54590, Lahore, Pakistan
| | - Muhammad Arshad Javed
- Department of Plant Breeding and Genetics, Faculty of Agricultural Sciences, University of the Punjab, P.O BOX. 54590, Lahore, Pakistan
| | - Mudassar Ali Khan
- Department of Physiology, Rashid Latif Medical College, Lahore, 54000, Pakistan
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Dallio M, Romeo M, Cipullo M, Ventriglia L, Scognamiglio F, Vaia P, Iadanza G, Coppola A, Federico A. Systemic Oxidative Balance Reflects the Liver Disease Progression Status for Primary Biliary Cholangitis (Pbc): The Narcissus Fountain. Antioxidants (Basel) 2024; 13:387. [PMID: 38671835 PMCID: PMC11047334 DOI: 10.3390/antiox13040387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 03/12/2024] [Accepted: 03/20/2024] [Indexed: 04/28/2024] Open
Abstract
Biological antioxidant potential (BAP) and Reactive Oxygen Metabolites (dROMs) are two tests complementarily assessing systemic oxidative statuses (SOSs) that are never applied in chronic liver disorders (CLDs). We enrolled 41 ursodeoxycholic acid (UDCA)-naïve Primary Biliary Cholangitis (PBC) patients [age: 58.61 ± 11.26 years; females (F): 39], 40 patients with metabolic-dysfunction-associated steatotic livers (age: 54.30 ± 11.21; F: 20), 52 patients with HBV (age: 52.40 ± 8.22; F: 34), 50 patients with (age: 56.44 ± 7.79, F: 29), and 10 controls (age: 52.50 ± 9.64; F: 7). Liver fibrosis and the steatosis severity were determined using transient elastography, and the SOS was balanced using d-ROMs and the BAP test. The gene expressions of superoxide dismutase (SOD1; SOD2) and glutathione peroxidase (GPx1) were evaluated using real-time PCR in advanced fibrosis (AF: F3F4) in patients with PBC. In contrast to other CLDs, in PBC the dROMs and BAP levels were, respectively, directly and inversely correlated with hepatic fibrosis (dROMs, R: 0.883; BAP, R: -0.882) and steatosis (dROMs, R: 0.954; BAP, R: -0931) severity (p < 0.0001 all). Patients with PBC also revealed a progressively increasing trend of d-ROMs (F0-F2 vs. F3: p = 0.0008; F3 vs. F4: p = 0.04) and reduction in BAP levels (F0-F2 vs. F3: p = 0.0007; F3 vs. F4 p = 0.04) according to the worsening of liver fibrosis. In AF-PBC, the SOD1, SOD2, and GPx1 expressions were significantly downregulated in patients presenting SOS imbalance (SOD1, p = 0.02; SOD2, p = 0.03; GPx1, p = 0.02). SOS disequilibrium represents a leitmotiv in patients with PBC, perfectly reflecting their liver disease progression status.
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Sokary S, Bawadi H, Zakaria ZZ, Al-Asmakh M. The Effects of Spirulina Supplementation on Cardiometabolic Risk Factors: A Narrative Review. J Diet Suppl 2024:1-16. [PMID: 38251049 DOI: 10.1080/19390211.2023.2301366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
Spirulina (Arthrospira platensis) is a cyanobacterium associated with multiple health benefits. Cardiometabolic diseases such as cardiovascular disease, nonalcoholic fatty liver disease, and diabetes are prevalent yet usually preventable non-communicable diseases. Modifiable risk factors for cardiometabolic diseases include excessive body weight, body inflammation, atherogenic lipid profile, and imbalanced glucose metabolism. This review explores the effects of spirulina on cardiometabolic diseases risk factors. Spirulina was effective in reducing body weight, body mass index, and waist circumference, with a potential dose-dependent effect. It also decreased interleukin 6, an important biomarker of body inflammation, by inhibiting NADPH oxidase enzyme, and lowering insulin resistance. spirulina supplementation also reduced triglycerides, low-density lipoprotein cholesterol, and increased high-density lipoprotein cholesterol. Additionally, spirulina reduced fasting blood sugar and post-prandial blood sugar and increased insulin sensitivity, but no effect was observed on glycated hemoglobin A1c. The diverse nutrients, such as phycocyanin, gamma-linolenic acid, and vitamin B12, present in spirulina contribute to its cardiometabolic benefits. The doses used are heterogeneous for most studies, ranging from 1 to 8 grams daily, but most studies administered spirulina for 3 months to observe an effect. The collective evidence suggests that spirulina supplements may help improve risk factors for cardiometabolic diseases, thus, preventing its development. However, due to the heterogeneity of the results, more randomized clinical trials are needed to draw robust conclusions about spirulina's therapeutic potential in ameliorating risk factors for cardiometabolic diseases and fully elucidate the mechanisms by which it exerts its effects.
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Affiliation(s)
- Sara Sokary
- Department of Human Nutrition, College of Health Science, QU-Health, Qatar University, Doha, Qatar
| | - Hiba Bawadi
- Department of Human Nutrition, College of Health Science, QU-Health, Qatar University, Doha, Qatar
| | - Zain Zaki Zakaria
- Vice President for Medical and Health Sciences Office, Health Cluster, Qatar University, Doha, Qatar
| | - Maha Al-Asmakh
- Department of Biomedical Sciences, College of Health Science, QU-Health, Qatar University, Doha, Qatar
- Biomedical Research Centre, Qatar University, Doha, Qatar
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6
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Zhao Y, Huang B, Yu Y, Luan J, Huang S, Liu Y, Yang H, Chen Y, Yang R, Dong J, Shi H. Exercise to prevent the negative effects of sleep deprivation: A systematic review and meta-analysis. Neurosci Biobehav Rev 2023; 155:105433. [PMID: 37898446 DOI: 10.1016/j.neubiorev.2023.105433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 10/07/2023] [Accepted: 10/22/2023] [Indexed: 10/30/2023]
Abstract
Ample sleep is an important basis for maintaining health, however with the pace of life accelerating in modern society, more people are using sacrificial sleep to cope with these social changes. Sleep deprivation can have negative effects on cognitive performance and psychosomatic health. It is well known that exercise, as a beneficial intervention strategy for human health, has been increasingly used in the clinic. But it's not clear if it can prevent the negative effects of sleep deprivation. In this meta-analysis, we reviewed 23 articles from PubMed and Web of Science to investigate whether moderate physical exercise can prevent the negative effects of sleep deprivation in rodents. Our findings suggest that exercise can prevent sleep deprivation-induced cognitive impairment and anxiety-like behaviors through multiple pathways. We also discuss possible molecular mechanisms involved in this protective effect, highlighting the potential of exercise as a preventive or therapeutic strategy for sleep deprivation-induced negative effects.
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Affiliation(s)
- Ye Zhao
- Neuroscience Research Center, Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang 050017, China; Hebei Key laboratory of Neurophysiology, Hebei Medicinal University, Shijiazhuang 050017, China
| | - Boya Huang
- Neuroscience Research Center, Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang 050017, China; Hebei Key laboratory of Neurophysiology, Hebei Medicinal University, Shijiazhuang 050017, China
| | - Yang Yu
- Neuroscience Research Center, Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang 050017, China; Hebei Key laboratory of Neurophysiology, Hebei Medicinal University, Shijiazhuang 050017, China
| | - Jiage Luan
- Nursing School, Hebei Medical University, Shijiazhuang 050017, China
| | - Shihao Huang
- National Institute on Drug Dependence and Beijing Key Laboratory of Drug Dependence, Peking University, Beijing 100191, China
| | - Ye Liu
- Neuroscience Research Center, Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang 050017, China; Hebei Key laboratory of Neurophysiology, Hebei Medicinal University, Shijiazhuang 050017, China
| | - Huiping Yang
- Neuroscience Research Center, Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang 050017, China; Hebei Key laboratory of Neurophysiology, Hebei Medicinal University, Shijiazhuang 050017, China
| | - Yifei Chen
- Neuroscience Research Center, Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang 050017, China; Hebei Key laboratory of Neurophysiology, Hebei Medicinal University, Shijiazhuang 050017, China
| | - Rui Yang
- Neuroscience Research Center, Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang 050017, China; Hebei Key laboratory of Neurophysiology, Hebei Medicinal University, Shijiazhuang 050017, China
| | - Jing Dong
- Brain Science and Advanced Technology Institute, Wuhan University of Science and Technology, Wuhan 430000, Hubei, China
| | - Haishui Shi
- Neuroscience Research Center, Institute of Medical and Health Science, Hebei Medical University, Shijiazhuang 050017, China; Hebei Key laboratory of Neurophysiology, Hebei Medicinal University, Shijiazhuang 050017, China; Nursing School, Hebei Medical University, Shijiazhuang 050017, China.
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7
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Hemmendinger M, Squillacioti G, Charreau T, Garzaro G, Ghelli F, Bono R, Sauvain JJ, Suarez G, Hopf NB, Wild P, Progiou A, Fito C, Bergamaschi E, Guseva Canu I. Occupational exposure to nanomaterials and biomarkers in exhaled air and urine: Insights from the NanoExplore international cohort. ENVIRONMENT INTERNATIONAL 2023; 179:108157. [PMID: 37625222 DOI: 10.1016/j.envint.2023.108157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 08/16/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023]
Abstract
The current evidence on nanomaterial toxicity is mostly derived from experimental studies making it challenging to translate it into human health risks. We established an international cohort (N = 141 workers) within the EU-LIFE project "NanoExplore" to address possible health effects from occupational exposures to nanomaterials. We used a handheld direct-reading optical particle counter to measure airborne nanoparticle number concentrations (PNC) and lung-deposited surface areas (LDSAs). Airborne particles were characterized by TEM and SEM-EDAX. We assessed oxidative/nitrosative stress with a panel of biomarkers in exhaled breath condensate (EBC) (8-isoprostane, malondialdehyde, nitrotyrosine), inflammation (high-sensitivity C reactive protein (hs-CRP), IL-1β, TNF-α, IL-10) and KL-6 (considered as biomarker of interstitial lung fibrosis) and urine (total antioxidant power (TAP), 8-isoprostane, and malondialdehyde). Exhaled breath sampled in gas-sampling bags were assessed for oxidative potential. These biomarkers were quantified pre-shift at the beginning of the workweek and post-shift the 4th day. Relationships between airborne nanoparticle concentration and biomarkers were assessed by multiple linear regression with log-transformed exposure and biomarker concentrations adjusted for potential confounders. We found a positive dose-response relationship for three inflammation biomarkers (IL-10, IL-1β and TNF-α) in EBC with both PNC and LDSA. A negative dose-response relationship was observed between PNC and TAP. This study suggests that occupational exposures to nanoparticles can affect the oxidative balance and the innate immunity in occupationally exposed workers. However, owing to the intrinsic variability of biomarkers, the observed changes along with their health significance should be assessed in a long-term perspective study.
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Affiliation(s)
- Maud Hemmendinger
- Department of Occupational and Environmental Health, Center for Primary Care and Public Health (Unisanté), University of Lausanne, 1066 Epalinges, Lausanne, Switzerland
| | - Giulia Squillacioti
- Department of Public Health and Pediatrics, University of Turin - Via Santena 5 bis, 10126 Torino, Italy
| | - Thomas Charreau
- Department of Occupational and Environmental Health, Center for Primary Care and Public Health (Unisanté), University of Lausanne, 1066 Epalinges, Lausanne, Switzerland
| | - Giacomo Garzaro
- Department of Public Health and Pediatrics, University of Turin, Via Zuretti 29, 10126 Torino, Italy
| | - Federica Ghelli
- Department of Public Health and Pediatrics, University of Turin - Via Santena 5 bis, 10126 Torino, Italy
| | - Roberto Bono
- Department of Public Health and Pediatrics, University of Turin - Via Santena 5 bis, 10126 Torino, Italy
| | - Jean-Jacques Sauvain
- Department of Occupational and Environmental Health, Center for Primary Care and Public Health (Unisanté), University of Lausanne, 1066 Epalinges, Lausanne, Switzerland
| | - Guillaume Suarez
- Department of Occupational and Environmental Health, Center for Primary Care and Public Health (Unisanté), University of Lausanne, 1066 Epalinges, Lausanne, Switzerland
| | - Nancy B Hopf
- Department of Occupational and Environmental Health, Center for Primary Care and Public Health (Unisanté), University of Lausanne, 1066 Epalinges, Lausanne, Switzerland
| | - Pascal Wild
- Department of Occupational and Environmental Health, Center for Primary Care and Public Health (Unisanté), University of Lausanne, 1066 Epalinges, Lausanne, Switzerland
| | - Athena Progiou
- ALCON Consultant Engineers Ltd., 18Τroias street, 11257 Athens, Greece
| | - Carlos Fito
- Instituto tecnológico del embalaje, transporte y logística (ITENE), C/Albert Einstein 1, 46980 Paterna, Valencia, Spain
| | - Enrico Bergamaschi
- Department of Public Health and Pediatrics, University of Turin, Via Zuretti 29, 10126 Torino, Italy
| | - Irina Guseva Canu
- Department of Occupational and Environmental Health, Center for Primary Care and Public Health (Unisanté), University of Lausanne, 1066 Epalinges, Lausanne, Switzerland.
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Valgimigli L. Lipid Peroxidation and Antioxidant Protection. Biomolecules 2023; 13:1291. [PMID: 37759691 PMCID: PMC10526874 DOI: 10.3390/biom13091291] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/17/2023] [Accepted: 08/21/2023] [Indexed: 09/29/2023] Open
Abstract
Lipid peroxidation (LP) is the most important type of oxidative-radical damage in biological systems, owing to its interplay with ferroptosis and to its role in secondary damage to other biomolecules, such as proteins. The chemistry of LP and its biological consequences are reviewed with focus on the kinetics of the various processes, which helps understand the mechanisms and efficacy of antioxidant strategies. The main types of antioxidants are discussed in terms of structure-activity rationalization, with focus on mechanism and kinetics, as well as on their potential role in modulating ferroptosis. Phenols, pyri(mi)dinols, antioxidants based on heavy chalcogens (Se and Te), diarylamines, ascorbate and others are addressed, along with the latest unconventional antioxidant strategies based on the double-sided role of the superoxide/hydroperoxyl radical system.
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Affiliation(s)
- Luca Valgimigli
- Department of Chemistry "G. Ciamician", University of Bologna, Via Piero Gobetti 85, 40129 Bologna, Italy
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Sarajlic P, Vigor C, Avignon A, Zhou B, Oger C, Galano JM, Durand T, Sultan A, Bäck M. Omega-3 to omega-6 fatty acid oxidation ratio as a novel inflammation resolution marker for metabolic complications in obesity. Nutr Metab Cardiovasc Dis 2023; 33:1206-1213. [PMID: 37032252 DOI: 10.1016/j.numecd.2023.03.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 02/22/2023] [Accepted: 03/13/2023] [Indexed: 04/11/2023]
Abstract
BACKGROUND AND AIMS The oxidative metabolism of polyunsaturated fatty acids (PUFAs) leads to bioactive isoprostanoids. The aim was to establish the associations of a complete urinary isoprostanoid profiling in a cohort study of carefully phenotyped obese subjects to determine possible potential differential implications for omega-6 PUFA- and omega-3 PUFA-derived isoprostanoids for obesity, metabolic indicators, and inflammation. METHODS AND RESULTS PUFA peroxidation compounds were determined in urine samples from obese human subjects (n = 46) by liquid chromatography coupled to tandem mass spectrometry. Increased omega-6 arachidonic acid (AA) oxidation, mainly represented by 5-F2c isoprostane (5-F2c-IsoP) and metabolites of 15-F2t-IsoP, was associated with body mass index, glycated hemoglobin (HbA1c) and mean arterial blood pressure. In addition, we identified the omega-3 PUFA-derived urinary metabolites 14-F4t-NeuroP from docosahexaenoic acid (DHA) and 5-F3t-IsoP from eicosapentaenoic acid (EPA), which declined with age. The omega-3 to omega-6 oxidation ratio was a significant predictor of inflammation in obesity. CONCLUSION The findings point to full urinary isoprostanoid profiling as a more sensitive measure of PUFA oxidative stress in obesity-induced metabolic complications compared with individual isoprostanoid measures. Furthermore, the results suggest the balance between the omega-3 and omega-6 PUFA oxidation as determinative for the consequences of oxidative stress on inflammation in obesity.
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Affiliation(s)
- Philip Sarajlic
- Translational Cardiology, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Claire Vigor
- Institut des Biomolécules Max Mousseron, IBMM, UMR 5247, Université de Montpellier, CNRS, ENSCM, Pôle Recherche Chimie Balard, 34293 Cedex 5 Montpellier, France
| | - Antoine Avignon
- Endocrinology Diabetes Department, CHU Montpellier, Université Montpellier, Montpellier, France; Desbrest Institute of Epidemiology and Public Health, IDESP UMR UA11 INSERM, Université Montpellier, Montpellier, France
| | - Bingqing Zhou
- Institut des Biomolécules Max Mousseron, IBMM, UMR 5247, Université de Montpellier, CNRS, ENSCM, Pôle Recherche Chimie Balard, 34293 Cedex 5 Montpellier, France
| | - Camille Oger
- Institut des Biomolécules Max Mousseron, IBMM, UMR 5247, Université de Montpellier, CNRS, ENSCM, Pôle Recherche Chimie Balard, 34293 Cedex 5 Montpellier, France
| | - Jean-Marie Galano
- Institut des Biomolécules Max Mousseron, IBMM, UMR 5247, Université de Montpellier, CNRS, ENSCM, Pôle Recherche Chimie Balard, 34293 Cedex 5 Montpellier, France
| | - Thierry Durand
- Institut des Biomolécules Max Mousseron, IBMM, UMR 5247, Université de Montpellier, CNRS, ENSCM, Pôle Recherche Chimie Balard, 34293 Cedex 5 Montpellier, France
| | - Ariane Sultan
- Endocrinology Diabetes Department, CHU Montpellier, Université Montpellier, Montpellier, France; Phymedexp, Université de Montpellier, Inserm, CNRS, CHRU de Montpellier, Montpellier, France
| | - Magnus Bäck
- Translational Cardiology, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden; Université de Lorraine, INERM U1116, CHRU Nancy, Vandoeuvre-lès-Nancy, France.
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10
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Sequeira-Antunes B, Ferreira HA. Urinary Biomarkers and Point-of-Care Urinalysis Devices for Early Diagnosis and Management of Disease: A Review. Biomedicines 2023; 11:biomedicines11041051. [PMID: 37189669 DOI: 10.3390/biomedicines11041051] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 03/10/2023] [Accepted: 03/27/2023] [Indexed: 03/31/2023] Open
Abstract
Biosensing and microfluidics technologies are transforming diagnostic medicine by accurately detecting biomolecules in biological samples. Urine is a promising biological fluid for diagnostics due to its noninvasive collection and wide range of diagnostic biomarkers. Point-of-care urinalysis, which integrates biosensing and microfluidics, has the potential to bring affordable and rapid diagnostics into the home to continuing monitoring, but challenges still remain. As such, this review aims to provide an overview of biomarkers that are or could be used to diagnose and monitor diseases, including cancer, cardiovascular diseases, kidney diseases, and neurodegenerative disorders, such as Alzheimer’s disease. Additionally, the different materials and techniques for the fabrication of microfluidic structures along with the biosensing technologies often used to detect and quantify biological molecules and organisms are reviewed. Ultimately, this review discusses the current state of point-of-care urinalysis devices and highlights the potential of these technologies to improve patient outcomes. Traditional point-of-care urinalysis devices require the manual collection of urine, which may be unpleasant, cumbersome, or prone to errors. To overcome this issue, the toilet itself can be used as an alternative specimen collection and urinalysis device. This review then presents several smart toilet systems and incorporated sanitary devices for this purpose.
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11
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Guseva Canu I, Plys E, Velarde Crézé C, Fito C, Hopf NB, Progiou A, Riganti C, Sauvain JJ, Squillacioti G, Suarez G, Wild P, Bergamaschi E. A harmonized protocol for an international multicenter prospective study of nanotechnology workers: the NanoExplore cohort. Nanotoxicology 2023; 17:1-19. [PMID: 36927342 DOI: 10.1080/17435390.2023.2180220] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
Nanotechnology applications are fast-growing in many industrial fields. Consequently, health effects of engineered nanomaterials (ENMs) should be investigated. Within the EU-Life project NanoExplore, we developed a harmonized protocol of an international multicenter prospective cohort study of workers in ENM-producing companies. This article describes the development of the protocol, sample size calculation, data collection and management procedures and discusses its relevance with respect to research needs. Within this protocol, workers' ENM exposure will be assessed over four consecutive working days during the initial recruitment campaign and the subsequent follow-up campaigns. Biomonitoring using noninvasive sampling of exhaled breath condensate (EBC), exhaled air, and urine will be collected before and after 4-day exposure monitoring. Both exposure and effect biomarkers, will be quantified along with pulmonary function tests and diagnosed diseases reported using a standardized epidemiological questionnaire available in four languages. Until now, this protocol was implemented at seven companies in Switzerland, Spain and Italy. The protocol is well standardized, though sufficiently flexible to include company-specific conditions and occupational hygiene measures. The recruitment, to date, of 140 participants and collection of all data and samples, enabled us launching the first international cohort of nanotechnology workers. All companies dealing with ENMs could join the NanoExplore Consortium, apply this harmonized protocol and enter in the cohort, concieved as an open cohort. Its protocol meets all requirements of a hypotheses-driven prospective study, which will assess and reassess effects of ENM exposure on workers' health by updating the follow-up of the cohort. New hypothesis could be also considered.
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Affiliation(s)
- Irina Guseva Canu
- Department of Occupational and Environmental Health, Center for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland
| | - Ekaterina Plys
- Department of Occupational and Environmental Health, Center for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland
| | - Camille Velarde Crézé
- Department of Occupational and Environmental Health, Center for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland
| | - Carlos Fito
- Institutotecnológico del embalaje, transporte y logística (ITENE), Paterna, Spain
| | - Nancy B Hopf
- Department of Occupational and Environmental Health, Center for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland
| | | | - Chiara Riganti
- Department of Oncology, University of Torino, Torino, Italy
| | - Jean-Jacques Sauvain
- Department of Occupational and Environmental Health, Center for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland
| | - Giulia Squillacioti
- Department of Public Health and Pediatrics, University of Torino, Torino, Italy
| | - Guillaume Suarez
- Department of Occupational and Environmental Health, Center for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland
| | - Pascal Wild
- Department of Occupational and Environmental Health, Center for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland
| | - Enrico Bergamaschi
- Department of Public Health and Pediatrics, University of Torino, Torino, Italy
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12
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Mizuno Y, Inaba Y, Masuoka H, Kibe M, Kosaka S, Natsuhara K, Hirayama K, Inthavong N, Kounnavong S, Tomita S, Umezaki M. Impact of modernization on oxidative stress among indigenous populations in northern Laos. AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY 2023. [PMID: 36919625 DOI: 10.1002/ajpa.24722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 09/30/2022] [Accepted: 02/12/2023] [Indexed: 06/18/2023]
Abstract
OBJECTIVES To explore the impact of modernization on oxidative stress during a momentous health transition process, we investigated differences in oxidative stress among the indigenous populations of villages in northern Laos with different levels of modernization. METHODS We conducted a cross-sectional study of 380 adults in three villages with different levels of modernization. Three biomarkers related to oxidative stress were measured: urinary 8-hydroxy-2'-deoxyguanosine (8-OHdG) and 8-isoprostane concentrations (both measured by liquid chromatography-tandem mass spectrometry), and blood telomere length (measured with qPCR). We examined associations between village-level modernization and oxidative stress-related biomarkers in a multilevel analysis including a random effect and covariates. RESULTS The geometric means of urinary 8-OHdG and 8-isoprostane concentrations were 2.92 and 0.700 μg/g creatinine, respectively, in our study population. Higher urinary 8-OHdG concentrations and shorter telomeres were observed in participants from the more modernized villages, whereas urinary 8-isoprostane concentrations did not differ significantly among villages. CONCLUSIONS Our findings imply that modernization-induced changes in lifestyle may increase oxidative DNA damage. Baseline levels of oxidative lipid damage are expected to be high in the indigenous populations of northern Laos. Assessments of oxidative stress may provide valuable insights into the mechanisms of health transition in specific populations.
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Affiliation(s)
- Yuki Mizuno
- Department of Human Ecology, School of International Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yohei Inaba
- Department of Environmental Health, National Institute of Public Health, Saitama, Japan
| | - Hiroaki Masuoka
- RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Mihoko Kibe
- Department of Human Ecology, School of International Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Satoko Kosaka
- Department of Public Health and Nursing, Nagasaki University, Nagasaki, Japan
| | | | - Kazuhiro Hirayama
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Nouhak Inthavong
- Lao Tropical and Public Health Institute, Ministry of Health, Vientiane, Laos
| | | | - Shinsuke Tomita
- Graduate School of Environmental Studies, Nagoya University, Nagoya, Japan
| | - Masahiro Umezaki
- Department of Human Ecology, School of International Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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13
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Urinary Oxidative Stress Biomarkers in the Diagnosis of Detrusor Overactivity in Female Patients with Stress Urinary Incontinence. Biomedicines 2023; 11:biomedicines11020357. [PMID: 36830894 PMCID: PMC9953419 DOI: 10.3390/biomedicines11020357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/19/2023] [Accepted: 01/23/2023] [Indexed: 01/28/2023] Open
Abstract
Ninety-three women with urodynamic stress incontinence (USI) and a mean age of 60.8 ± 10.7 (36-83) years were retrospectively enrolled. According to their VUDS, 31 (33%) were grouped into USI and detrusor overactivity (DO), 28 (30.1%) were grouped into USI and hypersensitive bladder (HSB), and 34 (36.6%) were controls (USI and stable bladder). The USI and DO group had significantly increased 8-isoprostane (mean, 33.3 vs. 10.8 pg/mL) and 8-hydroxy-2-deoxyguanosine (8-OHdG; mean, 28.9 vs. 17.4 ng/mL) and decreased interleukin (IL)-2 (mean, 0.433 vs. 0.638 pg/mL), vascular endothelial growth factor (mean, 5.51 vs. 8.99 pg/mL), and nerve growth factor (mean, 0.175 vs. 0.235 pg/mL) levels compared to controls. Oxidative stress biomarkers were moderately diagnostic of DO from controls, especially 8-isoprostane (area under the curve (AUC) > 0.7). Voided volume was highly diagnostic of DO from either controls or non-DO patients (AUC 0.750 and 0.915, respectively). The proposed prediction model with voided volume, 8-OHdG, and 8-isoprostane (cutoff values 384 mL, 35 ng/mL, and 37 pg/mL, respectively) had an accuracy of 81.7% (sensitivity, 67.7%; specificity, 88.7%; positive predictive value, 75.0%; negative predictive value, 84.6%). Combined with voided volume, urinary oxidative stress biomarkers have the potential to be used to identify urodynamic DO in patients with USI.
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14
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He Z, Xu H, Li C, Yang H, Mao Y. Intermittent fasting and immunomodulatory effects: A systematic review. Front Nutr 2023; 10:1048230. [PMID: 36925956 PMCID: PMC10011094 DOI: 10.3389/fnut.2023.1048230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 02/09/2023] [Indexed: 03/04/2023] Open
Abstract
Introduction strategy of periodic food restriction and fixed eating windows, could beneficially modify individuals by losing body weight, regulating glucose or lipid metabolism, reducing blood pressure, and modulating the immune system. Specific effects of IF and its mechanisms have not yet been assessed collectively. Thus, this systematic review aims to summarize and compare clinical trials that explored the immunomodulatory effects of IF. Methods After screening, 28 studies were included in this systematic review. Results In addition to weight loss, IF could benefit health subjects by strengthening their circadian rhythms, migrating immune cells, lower inflammatory factors, and enriching microbials. In addition of the anti-inflammatory effect by regulating macrophages, protection against oxidative stress with hormone secretion and oxidative-related gene expression plays a key beneficial role for the influence of IF on obese subjects. Discussion Physiological stress by surgery and pathophysiological disorders by endocrine diseases may be partly eased with IF. Moreover, IF might be used to treat anxiety and cognitive disorders with its cellular, metabolic and circadian mechanisms. Finally, the specific effects of IF and the mechanisms pertaining to immune system in these conditions require additional studies.
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Affiliation(s)
- Zhangyuting He
- Peking Union Medical College, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Haifeng Xu
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC and Chinese Academy of Medical Sciences (CAMS), Beijing, China
| | - Changcan Li
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC and Chinese Academy of Medical Sciences (CAMS), Beijing, China
| | - Huayu Yang
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC and Chinese Academy of Medical Sciences (CAMS), Beijing, China
| | - Yilei Mao
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC and Chinese Academy of Medical Sciences (CAMS), Beijing, China
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15
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Mucopolysaccharidoses: Cellular Consequences of Glycosaminoglycans Accumulation and Potential Targets. Int J Mol Sci 2022; 24:ijms24010477. [PMID: 36613919 PMCID: PMC9820209 DOI: 10.3390/ijms24010477] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/09/2022] [Accepted: 12/24/2022] [Indexed: 12/30/2022] Open
Abstract
Mucopolysaccharidoses (MPSs) constitute a heterogeneous group of lysosomal storage disorders characterized by the lysosomal accumulation of glycosaminoglycans (GAGs). Although lysosomal dysfunction is mainly affected, several cellular organelles such as mitochondria, endoplasmic reticulum, Golgi apparatus, and their related process are also impaired, leading to the activation of pathophysiological cascades. While supplying missing enzymes is the mainstream for the treatment of MPS, including enzyme replacement therapy (ERT), hematopoietic stem cell transplantation (HSCT), or gene therapy (GT), the use of modulators available to restore affected organelles for recovering cell homeostasis may be a simultaneous approach. This review summarizes the current knowledge about the cellular consequences of the lysosomal GAGs accumulation and discusses the use of potential modulators that can reestablish normal cell function beyond ERT-, HSCT-, or GT-based alternatives.
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16
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Sambiagio N, Berthet A, Wild P, Sauvain JJ, Auer R, Schoeni A, Rodondi N, Feller M, Humair JP, Berlin I, Breider F, Grandjean D, Hopf NB. Associations between urinary biomarkers of oxidative stress and biomarkers of tobacco smoke exposure in smokers. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 852:158361. [PMID: 36058322 DOI: 10.1016/j.scitotenv.2022.158361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 08/17/2022] [Accepted: 08/24/2022] [Indexed: 06/15/2023]
Abstract
Oxidative stress can contribute to the development of diseases, and may originate from exposures to toxicants commonly found in air pollution and cigarette smoke such as polycyclic aromatic hydrocarbons (PAHs) and volatile organic compounds (VOCs). Yet, associations between these exposures and oxidative stress biomarkers are poorly characterized. We report here novel associations between 14 exposure biomarkers of PAHs and VOCs, and two oxidative stress biomarkers; 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG) and 8-isoprostaglandin F2α (8-isoprostane) in urine obtained from smokers participating in an ongoing clinical study (ESTxENDS, NCT03589989). We also assessed associations between six biomarkers of tobacco smoke exposure (metabolites of nicotine and tobacco-specific nitrosamines (TSNAs)) and both oxidative stress biomarkers. We then quantified the relative importance of each family of the 20 exposure biomarkers on oxidative stress. Participating smokers (153 men and 117 women, median age 44 years) had on average smoked 25 [2-62] years and smoked about 17 [5-40] cigarettes per day at the time of the study. Multiple linear regression results showed an association between 8-oxodG concentrations and the following metabolites in decreasing relative importance: PAHs (beta coefficient β = 0.105, p-value <0.001, partial R2 = 0.15) > VOCs (β = 0.028, p < 0.001, partial R2 = 0.09) > nicotine (β = 0.226, p < 0.001, partial R2 = 0.08); and between 8-isoprostane concentrations and metabolites of PAHs (β = 0.117, p < 0.001, partial R2 = 0.14) > VOCs (β = 0.040, p < 0.001, partial R2 = 0.14) > TSNAs (β = 0.202, p = 0.003, partial R2 = 0.09) > nicotine (β = 0.266, p < 0.001, partial R2 = 0.08). Behavioral factors known to contribute to oxidative stress, including sleep quality, physical activity, and alcohol consumption, did not play a significant role. Exposures to PAHs and VOCs among smokers were significantly associated with oxidative stress.
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Affiliation(s)
- Nicolas Sambiagio
- Center for Primary Care and Public Health (Unisanté), University of Lausanne, Route de la Corniche 2, 1066 Epalinges, Lausanne, Switzerland.
| | - Aurélie Berthet
- Center for Primary Care and Public Health (Unisanté), University of Lausanne, Route de la Corniche 2, 1066 Epalinges, Lausanne, Switzerland.
| | - Pascal Wild
- Center for Primary Care and Public Health (Unisanté), University of Lausanne, Route de la Corniche 2, 1066 Epalinges, Lausanne, Switzerland.
| | - Jean-Jacques Sauvain
- Center for Primary Care and Public Health (Unisanté), University of Lausanne, Route de la Corniche 2, 1066 Epalinges, Lausanne, Switzerland.
| | - Reto Auer
- Center for Primary Care and Public Health (Unisanté), University of Lausanne, Route de la Corniche 2, 1066 Epalinges, Lausanne, Switzerland; Institute of Primary Health Care (BIHAM), University of Bern, Mittelstrasse 43, 3012 Bern, Switzerland.
| | - Anna Schoeni
- Institute of Primary Health Care (BIHAM), University of Bern, Mittelstrasse 43, 3012 Bern, Switzerland.
| | - Nicolas Rodondi
- Institute of Primary Health Care (BIHAM), University of Bern, Mittelstrasse 43, 3012 Bern, Switzerland; Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse, 3010 Bern, Switzerland.
| | - Martin Feller
- Institute of Primary Health Care (BIHAM), University of Bern, Mittelstrasse 43, 3012 Bern, Switzerland; Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse, 3010 Bern, Switzerland
| | - Jean-Paul Humair
- Department of Primary Care Medicine, Geneva University Hospitals, Rue Gabrielle Perret-Gentil 4, 1211 Geneva, Switzerland.
| | - Ivan Berlin
- Center for Primary Care and Public Health (Unisanté), University of Lausanne, Route de la Corniche 2, 1066 Epalinges, Lausanne, Switzerland; Department of Pharmacology, Assistance Publique-Hôpitaux de Paris, Sorbonne University, 75013 Paris, France.
| | - Florian Breider
- Central Environmental Laboratory (GR-CEL), Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne CH-1015, Switzerland.
| | - Dominique Grandjean
- Central Environmental Laboratory (GR-CEL), Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne CH-1015, Switzerland.
| | - Nancy B Hopf
- Center for Primary Care and Public Health (Unisanté), University of Lausanne, Route de la Corniche 2, 1066 Epalinges, Lausanne, Switzerland.
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17
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Babadi RS, Riederer AM, Sampson PD, Sathyanarayana S, Kavanagh TJ, Krenz JE, Andra SS, Kim-Schulze S, Jansen KL, Torres E, Perez A, Younglove LR, Tchong-French MI, Karr CJ. Associations between repeated measures of urinary phthalate metabolites and biomarkers of oxidative stress in a rural agricultural cohort of children with asthma. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 848:157493. [PMID: 35878846 DOI: 10.1016/j.scitotenv.2022.157493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 07/12/2022] [Accepted: 07/15/2022] [Indexed: 06/15/2023]
Abstract
Phthalate exposure is widespread, and studies suggest an adverse relationship with asthma morbidity, including some support for oxidative stress as an underlying pathophysiological mechanism. Urinary phthalate metabolites have been associated with biomarkers of oxidative stress, but data are few in children diagnosed with asthma. We used participant data from the Home Air in Agriculture Pediatric Intervention Trial (HAPI) to examine longitudinal relationships between phthalates and oxidative stress in a cohort of Latino children with asthma residing in an agricultural community. We used linear mixed-effects models to estimate associations between 11 urinary phthalate metabolites (and one summed measure of di-2-ethylhexyl phthalate (DEHP) metabolites, ∑DEHP) and two urinary biomarkers of oxidative stress: a biomarker of lipid peroxidation via measure of 8-isoprostane and a biomarker of DNA/RNA oxidative damage via combined measure of 8-hydroxydeoxyguanosine (8-OHdG), 8-hydroxyguanosine (8-OHG), and 8-hydroxyguanine. Seventy-nine participants provided 281 observations. In covariate-adjusted models, we observed significant positive relationships between all phthalate metabolites and 8-isoprostane, effect sizes ranging from a 9.3 % (95 % CI: 4.2 %-14.7 %) increase in 8-isoprostane for each 100 % increase (i.e., doubling) of mono-(carboxy-isooctyl) phthalate (MCIOP), to a 21.0 % (95 % CI: 14.3 %-28.2 %) increase in 8-isoprostane for each doubling of mono-n-butyl phthalate (MNBP). For each doubling of mono-(carboxy-isononyl) phthalate (MCINP) and mono-ethyl phthalate (MEP), the DNA/RNA oxidative damage biomarker increased by 6.0 % (95 % CI: 0.2 %-12.2 %) and 6.5 % (95 % CI: 1.4 %-11.9 %), respectively. In conclusion, we provide unique data suggesting phthalate exposure is positively associated with oxidative stress in children with asthma. Our repeat measures provide novel identification of a consistent effect of phthalates on oxidative stress in children with asthma via lipid peroxidation. Confirmation in future studies of children with asthma is needed to enhance understanding of the role of phthalates in childhood asthma morbidity.
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Affiliation(s)
- Ryan S Babadi
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA 98195, USA.
| | - Anne M Riederer
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA 98195, USA.
| | - Paul D Sampson
- Department of Statistics, University of Washington, Seattle, WA 98195, USA.
| | - Sheela Sathyanarayana
- Seattle Children's Research Institute, Seattle, WA 98145, USA; Department of Pediatrics, University of Washington, Seattle, WA 98195, USA.
| | - Terrance J Kavanagh
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA 98195, USA.
| | - Jennifer E Krenz
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA 98195, USA.
| | - Syam S Andra
- Department of Environmental Medicine & Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Seunghee Kim-Schulze
- Department of Environmental Medicine & Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Karen L Jansen
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA 98195, USA.
| | - Elizabeth Torres
- Northwest Communities Education Center, Radio KDNA, Granger, WA 98932, USA.
| | - Adriana Perez
- Yakima Valley Farm Workers Clinic, Toppenish, WA 98901, USA.
| | - Lisa R Younglove
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA 98195, USA.
| | - Maria I Tchong-French
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA 98195, USA.
| | - Catherine J Karr
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA 98195, USA; Department of Pediatrics, University of Washington, Seattle, WA 98195, USA.
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18
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Luo X, Xie D, Hu J, Su J, Xue Z. Oxidative Stress and Inflammatory Biomarkers for Populations with Occupational Exposure to Nanomaterials: A Systematic Review and Meta-Analysis. Antioxidants (Basel) 2022; 11:2182. [PMID: 36358554 PMCID: PMC9687069 DOI: 10.3390/antiox11112182] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 10/21/2022] [Accepted: 10/31/2022] [Indexed: 09/08/2023] Open
Abstract
Exposure to nanomaterials (NMs) is suggested to have the potential to cause harmful health effects. Activations of oxidative stress and inflammation are assumed as main contributors to NM-induced toxicity. Thus, oxidative stress- and inflammation-related indicators may serve as biomarkers for occupational risk assessment. However, the correlation between NM exposure and these biomarkers remains controversial. This study aimed to perform a meta-analysis to systematically investigate the alterations of various biomarkers after NM exposure. Twenty-eight studies were found eligible by searching PubMed, EMBASE and Cochrane Library databases. The pooled results showed NM exposure was significantly associated with increases in the levels of malonaldehyde (MDA) [standardized mean difference (SMD) = 2.18; 95% confidence interval (CI), 1.50-2.87], 4-hydroxy-2-nonhenal (HNE) (SMD = 2.05; 95% CI, 1.13-2.96), aldehydes C6-12 (SMD = 3.45; 95% CI, 2.80-4.10), 8-hydroxyguanine (8-OHG) (SMD = 2.98; 95% CI, 2.22-3.74), 5-hydroxymethyl uracil (5-OHMeU) (SMD = 1.90; 95% CI, 1.23-2.58), o-tyrosine (o-Tyr) (SMD = 1.81; 95% CI, 1.22-2.41), 3-nitrotyrosine (3-NOTyr) (SMD = 2.63; 95% CI, 1.74-3.52), interleukin (IL)-1β (SMD = 1.76; 95% CI, 0.87-2.66), tumor necrosis factor (TNF)-α (SMD = 1.52; 95% CI, 1.03-2.01), myeloperoxidase (MPO) (SMD = 0.25; 95% CI, 0.16-0.34) and fibrinogen (SMD = 0.11; 95% CI, 0.02-0.21), and decreases in the levels of glutathione peroxidase (GPx) (SMD = -0.31; 95% CI, -0.52--0.11) and IL-6 soluble receptor (IL-6sR) (SMD = -0.18; 95% CI, -0.28--0.09). Subgroup analysis indicated oxidative stress biomarkers (MDA, HNE, aldehydes C6-12, 8-OHG, 5-OHMeU, o-Tyr, 3-NOTyr and GPx) in exhaled breath condensate (EBC) and blood samples were strongly changed by NM exposure; inflammatory biomarkers (IL-1β, TNF-α, MPO, fibrinogen and IL-6sR) were all significant in EBC, blood, sputum and nasal lavage samples. In conclusion, our findings suggest that these oxidative stress and inflammatory indicators may be promising biomarkers for the biological monitoring of occupationally NM-exposed workers.
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Affiliation(s)
- Xiaogang Luo
- College of Textile and Clothing Engineering, Soochow University, 199 Ren-Ai Road, Suzhou 215123, China
| | - Dongli Xie
- College of Textile and Clothing Engineering, Soochow University, 199 Ren-Ai Road, Suzhou 215123, China
| | - Jianchen Hu
- College of Textile and Clothing Engineering, Soochow University, 199 Ren-Ai Road, Suzhou 215123, China
| | - Jing Su
- Shanghai Institute of Spacecraft Equipment, 251 Huaning Road, Shanghai 200240, China
| | - Zhebin Xue
- College of Textile and Clothing Engineering, Soochow University, 199 Ren-Ai Road, Suzhou 215123, China
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19
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Bello D, Chanetsa L, Christophi CA, Singh D, Setyawati MI, Christiani DC, Chotirmall SH, Ng KW, Demokritou P. Biomarkers of oxidative stress in urine and plasma of operators at six Singapore printing centers and their association with several metrics of printer-emitted nanoparticle exposures. Nanotoxicology 2022; 16:913-934. [PMID: 36774544 DOI: 10.1080/17435390.2023.2175735] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
Inhalation of nanoparticles emitted from toner-based printing equipment (TPE), such as laser printers and photocopiers, also known as PEPs, has been associated with systemic inflammation, hypertension, cardiovascular disease, respiratory disorders, and genotoxicity. Global serum metabolomics analysis in 19 healthy TPE operators found 52 dysregulated biomolecules involved in upregulation of inflammation, immune, and antioxidant responses and downregulation of cellular energetics and cell proliferation. Here, we build on the metabolomics study by investigating the association of a panel of nine urinary OS biomarkers reflecting DNA/RNA damage (8OHdG, 8OHG, and 5OHMeU), protein/amino acid oxidation (o-tyrosine, 3-chlorotyrosine, and 3-nitrotyrosine), and lipid oxidation (8-isoprostane, 4-hydroxy nonenal, and malondialdehyde [MDA]), as well as plasma total MDA and total protein carbonyl (TPC), with several nanoparticle exposure metrics in the same 19 healthy TPE operators. Plasma total MDA, urinary 5OHMeU, 3-chlorotyrosine, and 3-nitrotyrosine were positively, whereas o-tyrosine inversely and statistically significantly associated with PEPs exposure in multivariate models, after adjusting for age and urinary creatinine. Urinary 8OHdG, 8OHG, 5OHMeU, and total MDA in urine and plasma had group mean values higher than expected in healthy controls without PEPs exposure and comparable to those of workers experiencing low to moderate levels of oxidative stress (OS). The highest exposure group had OS biomarker values, most notably 8OHdG, 8OHG, and total MDA, that compared to workers exposed to welding fumes and titanium dioxide. Particle number concentration was the most sensitive and robust exposure metric. A combination of nanoparticle number concentration and OS potential of fresh aerosols is recommended for larger scale future studies.
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Affiliation(s)
- Dhimiter Bello
- Department of Biomedical and Nutritional Sciences, Zuckerberg College of Health Sciences, University of Massachusetts Lowell, Lowell, MA, USA.,Center for Nanotechnology and Nanotoxicology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Lucia Chanetsa
- Department of Biomedical and Nutritional Sciences, Zuckerberg College of Health Sciences, University of Massachusetts Lowell, Lowell, MA, USA
| | - Costas A Christophi
- Cyprus International Institute for Environmental and Public Health, Cyprus University of Technology, Limassol, Cyprus
| | - Dilpreet Singh
- Center for Nanotechnology and Nanotoxicology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | | | - David C Christiani
- Center for Nanotechnology and Nanotoxicology, Harvard T.H. Chan School of Public Health, Boston, MA, USA.,Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA.,Department of Medicine, Pulmonary and Critical Care Division, Massachusetts General Hospital/Harvard Medical School, Boston, MA, USA
| | - Sanjay H Chotirmall
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore.,Department of Respiratory and Critical Care Medicine, Tan Tock Seng Hospital, Singapore, Singapore
| | - Kee Woei Ng
- Center for Nanotechnology and Nanotoxicology, Harvard T.H. Chan School of Public Health, Boston, MA, USA.,School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore.,Nanyang Environment and Water Research Institute (NEWRI), Nanyang Technological University, Singapore, Singapore
| | - Philip Demokritou
- Center for Nanotechnology and Nanotoxicology, Harvard T.H. Chan School of Public Health, Boston, MA, USA.,School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
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20
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Transflection infrared spectroscopy as a rapid screening tool for urinary 8-isoprostane. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Heravi AS, Michos ED, Zhao D, Ambale-Venkatesh B, Doria De Vasconcellos H, Lloyd-Jones D, Schreiner PJ, Reis JP, Wu C, Lewis CE, Shikany JM, Sidney S, Guallar E, Ndumele CE, Ouyang P, Hoogeveen RC, Lima JAC, Vaidya D, Post WS. Oxidative Stress and Menopausal Status: The Coronary Artery Risk Development in Young Adults Cohort Study. J Womens Health (Larchmt) 2022; 31:1057-1065. [PMID: 35675673 DOI: 10.1089/jwh.2021.0248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Background: Low endogenous estrogen concentrations after menopause may contribute to higher oxidative stress and greater cardiovascular disease (CVD) risk. However, differences in oxidative stress between similarly aged premenopausal and postmenopausal women are not well-characterized on a population level. We hypothesized that urinary isoprostane concentrations, a standard measure of systemic oxidative stress, are higher in women who have undergone menopause compared to premenopausal women. Methods and Results: We examined differences in urinary 8-isoprostane (iPF2α-III) and 2,3-dinor-8-isoprostane (iPF2α-III-M) indexed to urinary creatinine between 279 postmenopausal and 196 premenopausal women in the Coronary Artery Risk Development in Young Adults (CARDIA) study, using linear regression with progressive adjustment for sociodemographic factors and traditional CVD risk factors. Unadjusted iPF2α-III-M concentrations were higher among postmenopausal compared to premenopausal women (Median [25th, 75th percentile]: 1762 [1178, 2974] vs. 1535 [1067, 2462] ng/g creatinine; p = 0.01). Menopause was associated with 25.5% higher iPF2α-III-M (95% confidence interval [6.5-47.9]) adjusted for age, race, college education, and field center. Further adjustments for tobacco use (21.2% [2.9-42.6]) and then CVD risk factors (18.8% [0.1-39.6]) led to additional partial attenuation. Menopause was associated with higher iPF2α-III in Black but not White women. Conclusions: We conclude that postmenopausal women had higher oxidative stress, which may contribute to greater CVD risk. ClinicalTrials.gov Identifier: NCT00005130.
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Affiliation(s)
- Amir S Heravi
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Erin D Michos
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Di Zhao
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Bharath Ambale-Venkatesh
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | | | - Donald Lloyd-Jones
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Pamela J Schreiner
- Division of Epidemiology and Community Health, University of Minnesota School of Public Health, Minneapolis, Minnesota, USA
| | - Jared P Reis
- National Heart, Lung, and Blood Institute, Bethesda, Maryland, USA
| | - Colin Wu
- National Heart, Lung, and Blood Institute, Bethesda, Maryland, USA
| | - Cora E Lewis
- Division of Preventive Medicine, University of Alabama at Birmingham School of Public Health, Birmingham, Alabama, USA
| | - James M Shikany
- Division of Preventive Medicine, University of Alabama at Birmingham School of Public Health, Birmingham, Alabama, USA
| | - Stephen Sidney
- Division of Research, Kaiser-Permanente, Oakland, California, USA
| | - Eliseo Guallar
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Chiadi E Ndumele
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Pamela Ouyang
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Ron C Hoogeveen
- Division of Cardiovascular Research, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Joao A C Lima
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Dhananjay Vaidya
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Wendy S Post
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
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22
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Tylavsky FA, Han L, Sims Taylor LM, Mason WA, Carroll KN, Bush NR, LeWinn KZ, Melough MM, Hartman TJ, Zhao Q. Oxidative Balance Score during Pregnancy Is Associated with Oxidative Stress in the CANDLE Study. Nutrients 2022; 14:2327. [PMID: 35684127 PMCID: PMC9182929 DOI: 10.3390/nu14112327] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 05/26/2022] [Accepted: 05/30/2022] [Indexed: 02/04/2023] Open
Abstract
The objective of this study was to calculate an oxidative balance score (OBS) utilizing diet and lifestyle information collected from 1322 women during the second trimester of pregnancy in the Conditions Affecting Neurocognitive Development and Learning in Early Childhood study. An energy-adjusted OBS was calculated using nutrient information from a Food Frequency Questionnaire (FFQ), lifestyle measures, and plasma folate and vitamin D levels. Using the least absolute shrinkage and selection operator method, 91 food items from the FFQ were selected and they accounted for 82% of the variance in the OBS, with cruciferous vegetables, citrus fruits, fruit juice, and coffee being among the highest anti-oxidant predictors, and red meats and alcohol among the highest pro-oxidant contributors. Urinary F2-isoprostane, an objective indicator of oxidative stress, was lower with increasing OBS quintiles in a stairstep manner (p for trend = 0.0003), suggesting the possible utility of the OBS as an indicator of oxidative stress. The OBS was moderately correlated with the Healthy Eating Index (correlation coefficient = 0.6076), suggesting it provides a distinct measure of a healthy diet. In conclusion, the OBS may serve as a valid reflective indicator of urinary F2-isoprostanes and an epidemiological tool to inform intervention studies, in order to minimize oxidative stress during pregnancy.
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Affiliation(s)
- Frances A. Tylavsky
- Department of Preventive Medicine, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA; (F.A.T.); (L.H.); (L.M.S.T.); (W.A.M.)
| | - Luhang Han
- Department of Preventive Medicine, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA; (F.A.T.); (L.H.); (L.M.S.T.); (W.A.M.)
| | - Lauren M. Sims Taylor
- Department of Preventive Medicine, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA; (F.A.T.); (L.H.); (L.M.S.T.); (W.A.M.)
| | - W. Alex Mason
- Department of Preventive Medicine, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA; (F.A.T.); (L.H.); (L.M.S.T.); (W.A.M.)
| | - Kecia N. Carroll
- Division of General Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA;
| | - Nicole R. Bush
- Department of Psychiatry and Behavioral Health, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA 94118, USA; (N.R.B.); (K.Z.L.)
- Department of Pediatrics, University of California San Francisco, San Francisco, CA 94118, USA
| | - Kaja Z. LeWinn
- Department of Psychiatry and Behavioral Health, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA 94118, USA; (N.R.B.); (K.Z.L.)
| | - Melissa M. Melough
- Center for Child Health, Behavior and Development, Seattle Children’s Research Institute, Seattle, WA 98121, USA;
| | - Terryl J. Hartman
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA 303221, USA;
| | - Qi Zhao
- Department of Preventive Medicine, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA; (F.A.T.); (L.H.); (L.M.S.T.); (W.A.M.)
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23
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The Relationship between F 2-Isoprostanes Plasma Levels and Depression Symptoms in Healthy Older Adults. Antioxidants (Basel) 2022; 11:antiox11050822. [PMID: 35624687 PMCID: PMC9137659 DOI: 10.3390/antiox11050822] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 04/16/2022] [Accepted: 04/19/2022] [Indexed: 12/20/2022] Open
Abstract
The increasing proportion of older citizens in our society reflects a need to better understand age-related biological underpinnings of mood, as depression in older age may be under-diagnosed. Pre-clinical and human studies evidence a relationship between oxidative stress (OS) biomarkers in depression symptoms, and an influence of biological factors such as Body Mass Index (BMI), but focus has been clinical or younger samples, and less is known about patterns in healthy older adults. We investigated these associations with data derived from the Australian Research Council Longevity Study (ARCLI; ANZCTR12611000487910), in 568 healthy adults aged 60–75 years using F2-Isoprostanes plasma levels, and controlling for demographic factors, in assessing mood via the Beck Depression Inventory-II, Chalder Fatigue Scale, and General Health Questionnaire 12. Elevated F2-Isoprostanes contributed to depressed mood on the BDI-II and reduced general health on the GHQ-12. BMI was positively associated with Chalder Fatigue scores, yet better ratings on the GHQ-12. Females had significantly higher F2-Isoprostanes than males. The results suggest that in otherwise healthy older adults, mood and mental health are reduced with increases in oxidative stress markers, exhibiting similar patterns observed in clinical groups. Sex as a factor should be considered when assessing OS levels in systemic pathologies. BMI as a modifiable risk factor for maintenance of mental health, and OS modification through nutrient supplementation, are discussed. The findings contribute to understanding oxidative stress marker patterns in healthy older adults and their potential role in mood symptoms and mental health.
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24
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A Biomonitoring Pilot Study in Workers from a Paints Production Plant Exposed to Pigment-Grade Titanium Dioxide (TiO 2). TOXICS 2022; 10:toxics10040171. [PMID: 35448433 PMCID: PMC9028136 DOI: 10.3390/toxics10040171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 03/25/2022] [Accepted: 03/29/2022] [Indexed: 12/10/2022]
Abstract
Among particulate matter composing paints, titanium dioxide (TiO2) forms about 20% of the final suspension. Although TiO2 is broadly used in many applications, TiO2 powders represent an established respiratory hazard for workers with long-term exposure. In 35 workers of a paints production plant (15 exposed and 20 not exposed), we assessed pro-inflammatory cytokines (IL-1β, TNF-α, IL-10, IL-17), surfactant protein D (SP-D) and Krebs von den Lungen-6 glycoprotein (KL-6) in exhaled breath condensate (EBC). In urine samples, we measured 8-isoprostane (Isop) and Malondialdehyde (MDA) as biomarkers of oxidative stress, and Titanium (Ti-U) as a biomarker of exposure. Health status, habits and occupational history were recorded. Airborne respirable dusts and Ti were quantified. Particle number concentration and average diameter (nm) were detected by a NanoTracer™ monitoring device. Ti was measurable in filters collected at the respiratory breathing zone (0.11−0.44 µg/m3 8-h TWA). IL-1β and IL-10 values were significantly higher in exposed workers, whereas SP-D was significantly lower (p < 0.001). KL-6 was significantly higher in workers than in controls (p < 0.01). MDA levels were significantly increased in exposed workers and were positively correlated with Ti-U. Exposure to TiO2 in paint production is associated with the subtle alterations of lung pathobiology. These findings suggest the need for an integrated approach relying on both personal exposure and biomarker assessment to improve the hazard characterisation in occupational settings.
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25
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Urinary Malondialdehyde (MDA) Concentrations in the General Population—A Systematic Literature Review and Meta-Analysis. TOXICS 2022; 10:toxics10040160. [PMID: 35448421 PMCID: PMC9024833 DOI: 10.3390/toxics10040160] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/23/2022] [Accepted: 03/26/2022] [Indexed: 12/15/2022]
Abstract
Oxidative stress has been associated with various inflammation-related human diseases. It is defined as an imbalance between the production and elimination of reactive oxygen species (ROS). ROS can oxidize proteins, lipids, and DNA, and some of these oxidized products are excreted in urine, such as malondialdehyde (MDA), which is considered a biomarker for oxidative damage of lipids. To interpret changes of this biomarker as a measure of oxidative species overproduction in humans, a background range for urinary MDA concentration in the general population is needed. We sought to establish urinary MDA concentration ranges for healthy adult populations based on reported values in the available scientific literature. We conducted a systematic review and meta-analysis using the standardized protocol registered in PROSPERO (CRD42020146623). EMBASE, PubMed, Web of Science, and Cochrane library databases were searched from journal inception up to October 2020. We included 35 studies (divided into 47 subgroups for the quantitative analysis). Only studies that measured creatinine-corrected urinary MDA with high-performance liquid chromatography (HPLC) with mass spectrometry (MS), fluorescence detection, or UV photometry were included. The geometric mean (GM) of urinary MDA concentration was 0.10 mg/g creatinine and 95% percentile confidence interval (CI) 0.07–0.12. Age, geographical location but not sex, and smoking status had a significant effect on urinary MDA concentrations. There was a significant increasing trend of urinary MDA concentrations with age. These urinary MDA values should be considered preliminary, as they are based on mostly moderate to some low-quality evidence studies. Although urinary MDA can reliably reflect excessive oxidative stress in a population, the influence of physiological parameters that affect its meaning needs to be addressed as well as harmonizing the chemical analytical methods.
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26
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Tanner S, Thomson S, Drummond K, O’Hely M, Symeonides C, Mansell T, Saffery R, Sly PD, Collier F, Burgner D, Sugeng EJ, Dwyer T, Vuillermin P, Ponsonby AL. A Pathway-Based Genetic Score for Oxidative Stress: An Indicator of Host Vulnerability to Phthalate-Associated Adverse Neurodevelopment. Antioxidants (Basel) 2022; 11:antiox11040659. [PMID: 35453345 PMCID: PMC9030597 DOI: 10.3390/antiox11040659] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/16/2022] [Accepted: 03/23/2022] [Indexed: 01/12/2023] Open
Abstract
The developing brain is highly sensitive to environmental disturbances, and adverse exposures can act through oxidative stress. Given that oxidative stress susceptibility is determined partly by genetics, multiple studies have employed genetic scores to explore the role of oxidative stress in human disease. However, traditional approaches to genetic score construction face a range of challenges, including a lack of interpretability, bias towards the disease outcome, and often overfitting to the study they were derived on. Here, we develop an alternative strategy by first generating a genetic pathway function score for oxidative stress (gPFSox) based on the transcriptional activity levels of the oxidative stress response pathway in brain and other tissue types. Then, in the Barwon Infant Study (BIS), a population-based birth cohort (n = 1074), we show that a high gPFSox, indicating reduced ability to counter oxidative stress, is linked to higher autism spectrum disorder risk and higher parent-reported autistic traits at age 4 years, with AOR values (per 2 additional pro-oxidant alleles) of 2.10 (95% CI (1.12, 4.11); p = 0.024) and 1.42 (95% CI (1.02, 2.01); p = 0.041), respectively. Past work in BIS has reported higher prenatal phthalate exposure at 36 weeks of gestation associated with offspring autism spectrum disorder. In this study, we examine combined effects and show a consistent pattern of increased neurodevelopmental problems for individuals with both a high gPFSox and high prenatal phthalate exposure across a range of outcomes, including high gPFSox and high DEHP levels against autism spectrum disorder (attributable proportion due to interaction 0.89; 95% CI (0.62, 1.16); p < 0.0001). The results highlight the utility of this novel functional genetic score and add to the growing evidence implicating gestational phthalate exposure in adverse neurodevelopment.
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Affiliation(s)
- Samuel Tanner
- Developing Brain Division, The Florey Institute for Neuroscience and Mental Health, Parkville, VIC 3052, Australia; (S.T.); (S.T.); (K.D.)
| | - Sarah Thomson
- Developing Brain Division, The Florey Institute for Neuroscience and Mental Health, Parkville, VIC 3052, Australia; (S.T.); (S.T.); (K.D.)
| | - Katherine Drummond
- Developing Brain Division, The Florey Institute for Neuroscience and Mental Health, Parkville, VIC 3052, Australia; (S.T.); (S.T.); (K.D.)
| | - Martin O’Hely
- Murdoch Children’s Research Institute, Royal Children’s Hospital, University of Melbourne, Parkville, VIC 3052, Australia; (M.O.); (C.S.); (T.M.); (R.S.); (F.C.); (D.B.); (T.D.); (P.V.)
- School of Medicine, Deakin University, Geelong, VIC 3216, Australia
| | - Christos Symeonides
- Murdoch Children’s Research Institute, Royal Children’s Hospital, University of Melbourne, Parkville, VIC 3052, Australia; (M.O.); (C.S.); (T.M.); (R.S.); (F.C.); (D.B.); (T.D.); (P.V.)
- The Minderoo Foundation, Perth, WA 6000, Australia
| | - Toby Mansell
- Murdoch Children’s Research Institute, Royal Children’s Hospital, University of Melbourne, Parkville, VIC 3052, Australia; (M.O.); (C.S.); (T.M.); (R.S.); (F.C.); (D.B.); (T.D.); (P.V.)
| | - Richard Saffery
- Murdoch Children’s Research Institute, Royal Children’s Hospital, University of Melbourne, Parkville, VIC 3052, Australia; (M.O.); (C.S.); (T.M.); (R.S.); (F.C.); (D.B.); (T.D.); (P.V.)
| | - Peter D. Sly
- Children’s Health Research Centre, University of Queensland, South Brisbane, QLD 4101, Australia;
- WHO Collaborating Centre for Children’s Health and Environment, South Brisbane, QLD 4104, Australia
| | - Fiona Collier
- Murdoch Children’s Research Institute, Royal Children’s Hospital, University of Melbourne, Parkville, VIC 3052, Australia; (M.O.); (C.S.); (T.M.); (R.S.); (F.C.); (D.B.); (T.D.); (P.V.)
- School of Medicine, Deakin University, Geelong, VIC 3216, Australia
- Barwon Health, Geelong, VIC 3216, Australia
| | - David Burgner
- Murdoch Children’s Research Institute, Royal Children’s Hospital, University of Melbourne, Parkville, VIC 3052, Australia; (M.O.); (C.S.); (T.M.); (R.S.); (F.C.); (D.B.); (T.D.); (P.V.)
- Department of Paediatrics, University of Melbourne, Parkville, VIC 3052, Australia
| | - Eva J. Sugeng
- Department of Environment and Health, Vrije Universiteit, De Boelelaan 1087, 1081 HV Amsterdam, The Netherlands;
| | - Terence Dwyer
- Murdoch Children’s Research Institute, Royal Children’s Hospital, University of Melbourne, Parkville, VIC 3052, Australia; (M.O.); (C.S.); (T.M.); (R.S.); (F.C.); (D.B.); (T.D.); (P.V.)
- Nuffield Department of Women’s & Reproductive Health, University of Oxford, Oxford OX3 9DU, UK
| | - Peter Vuillermin
- Murdoch Children’s Research Institute, Royal Children’s Hospital, University of Melbourne, Parkville, VIC 3052, Australia; (M.O.); (C.S.); (T.M.); (R.S.); (F.C.); (D.B.); (T.D.); (P.V.)
- School of Medicine, Deakin University, Geelong, VIC 3216, Australia
- Barwon Health, Geelong, VIC 3216, Australia
| | - Anne-Louise Ponsonby
- Developing Brain Division, The Florey Institute for Neuroscience and Mental Health, Parkville, VIC 3052, Australia; (S.T.); (S.T.); (K.D.)
- Murdoch Children’s Research Institute, Royal Children’s Hospital, University of Melbourne, Parkville, VIC 3052, Australia; (M.O.); (C.S.); (T.M.); (R.S.); (F.C.); (D.B.); (T.D.); (P.V.)
- Correspondence:
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Kida T, Yamazaki A, Kobayashi K, Nakamura T, Nakagawa T, Nishimura R, Murata T. The profile of urinary lipid metabolites in healthy dogs. J Vet Med Sci 2022; 84:644-647. [PMID: 35321995 PMCID: PMC9177396 DOI: 10.1292/jvms.22-0020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Polyunsaturated fatty acids, including arachidonic acid (AA), docosahexaenoic acid (DHA), and eicosapentaenoic acid (EPA), are converted to hundreds of lipid mediators by cyclooxygenases
(COX), lipoxygenases (LOX), and cytochrome P450 (CYP), or through non-enzymatic processes, and they reflect inflammatory states of the body. We comprehensively analyzed lipid metabolites in
dog urine using a liquid chromatograph-mass spectrometry (LC-MS/MS) to describe their metabolic characteristics. We detected 31 AA-derived metabolites, four EPA-derived metabolites, and a
DHA-derived metabolite in all urine samples. Among AA-derived metabolites, 15, 5, 3, and 8 were generated by COX, LOX, CYP, and non-enzymatic oxidation respectively. This study will be the
first step to use profiles of urinary lipid metabolites for better understanding and diagnosis of canine diseases.
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Affiliation(s)
- Taiki Kida
- Department of Animal Radiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo
| | - Arisa Yamazaki
- Department of Animal Radiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo
| | - Koji Kobayashi
- Department of Animal Radiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo
| | - Tatsuro Nakamura
- Department of Animal Radiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo
| | - Takayuki Nakagawa
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo
| | - Ryohei Nishimura
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Sciences, The University of Tokyo
| | - Takahisa Murata
- Department of Animal Radiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo
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28
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Cysteine Donor-Based Brain-Targeting Prodrug: Opportunities and Challenges. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:4834117. [PMID: 35251474 PMCID: PMC8894025 DOI: 10.1155/2022/4834117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 02/11/2022] [Indexed: 12/20/2022]
Abstract
Overcoming blood-brain barrier (BBB) to improve brain bioavailability of therapeutic drug remains an ongoing concern. Prodrug is one of the most reliable approaches for delivering agents with low-level BBB permeability into the brain. The well-known antioxidant capacities of cysteine (Cys) and its vital role in glutathione (GSH) synthesis indicate that Cys-based prodrug could potentiate therapeutic drugs against oxidative stress-related neurodegenerative disorders. Moreover, prodrug with Cys moiety could be recognized by the excitatory amino acid transporter 3 (EAAT3) that is highly expressed at the BBB and transports drug into the brain. In this review, we summarized the strategies of crossing BBB, properties of EAAT3 and its natural substrates, Cys and its donors, and Cys donor-based brain-targeting prodrugs by referring to recent investigations. Moreover, the challenges that we are faced with and future research orientations were also addressed and proposed. It is hoped that present review will provide evidence for the pursuit of novel Cys donor-based brain-targeting prodrug.
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29
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Trares K, Chen LJ, Schöttker B. Association of F 2-isoprostane levels with Alzheimer's disease in observational studies: A systematic review and meta-analysis. Ageing Res Rev 2022; 74:101552. [PMID: 34954419 DOI: 10.1016/j.arr.2021.101552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 12/16/2021] [Accepted: 12/21/2021] [Indexed: 12/01/2022]
Abstract
INTRODUCTION The association between F2-isoprostanes and Alzheimer's disease (AD) has been controversially discussed in the literature since the 1990s. However, no systematic review has been performed so far. METHODS A systematic review of observational studies on the associations of F2-isoprostanes and the specific biomarker 8-iso-prostaglandin F2α with AD were conducted. Random-effects model meta-analyses were performed. RESULTS 29 studies were included in the systematic review, including four longitudinal studies. In an overall meta-analysis of the 25 cross-sectional studies, F2-isoprostane levels were statistically significantly associated with AD (Hedge's g [95% confidence interval]: 1.00 [0.69-1.32]). When studies were grouped by biomarker and sample specimen, F2-isoprostane and 8-iso-prostaglandin F2α levels were statistically significantly elevated in tissue samples of the frontal lobe of AD patients. Moreover, F2-isoprostane levels in cerebrospinal fluid and 8-iso-prostaglandin F2α levels in blood samples of AD patients were significantly increased. Meta-analyses of the few longitudinal studies did not reach statistical significance. DISCUSSION Increased concentrations of F2-isoprostanes were found in AD patients. However, due to the lack of adjustment in most cross-sectional case-control studies, results must be interpreted carefully. In addition, the causality of the association is uncertain because evidence from well-conducted longitudinal studies was conflicting, and further longitudinal studies are required to reinforce the results.
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Affiliation(s)
- Kira Trares
- Network Aging Research, Heidelberg University, Bergheimer Straße 20, 69115 Heidelberg, Germany; Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Im Neuenheimer Feld 581, 69120 Heidelberg, Germany; Medical Faculty, Heidelberg University, Im Neuenheimer Feld 672, 69120 Heidelberg
| | - Li-Ju Chen
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Im Neuenheimer Feld 581, 69120 Heidelberg, Germany
| | - Ben Schöttker
- Network Aging Research, Heidelberg University, Bergheimer Straße 20, 69115 Heidelberg, Germany; Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Im Neuenheimer Feld 581, 69120 Heidelberg, Germany.
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Liu W, Wang B, Yang S, Xu T, Yu L, Wang X, Cheng M, Zhou M, Chen W. Associations of propylene oxide exposure with fasting plasma glucose and diabetes: Roles of oxidative DNA damage and lipid peroxidation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 292:118453. [PMID: 34737025 DOI: 10.1016/j.envpol.2021.118453] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 10/10/2021] [Accepted: 10/31/2021] [Indexed: 06/13/2023]
Abstract
Whether propylene oxide (PO) exposure is associated with hyperglycemia were rarely explored. We aimed to determine the relationship between PO exposure and glucose metabolism, and potential role of oxidative stress. Among 3294 Chinese urban adults, urinary PO metabolite (N-Acetyl-S-(2-hydroxypropyl)-L-cysteine, 2HPMA), biomarkers of oxidative DNA damage (8-oxo-7,8-dihydro-20-deoxyguanosine, 8-OHdG) and lipid peroxidation (8-isoprostane, 8-iso-PGF2α) in urine were determined. The associations of 2HPMA with 8-OHdG, 8-iso-PGF2α, fasting plasma glucose (FPG), and risk of diabetes were explored. The roles of 8-OHdG and 8-iso-PGF2α on association of 2HPMA with FPG and risk of diabetes were detected. After adjusted for potential confounders, each 1-unit increase in log-transformed concentration of 2HPMA was associated with a 0.15-mmol/L increase in FPG level, and the adjusted OR (95% CI) of diabetes by the associations of log-transformed urinary 2HPMA concentrations was 1.47 (95% CI: 1.03-2.11). Combination effects of 2HPMA with 8-OHdG or 8-iso-PGF2α on risk of diabetes were detected, and elevated 8-iso-PGF2α significantly mediated 34.5% of the urinary 2HPMA-associated FPG elevation. PO exposure was positively associated with FPG levels and risk of diabetes. PO exposure combined with DNA oxidative damage or lipid peroxidation may increase the risk of diabetes, and lipid peroxidation may partially mediate the PO exposure-induced FPG elevation.
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Affiliation(s)
- Wei Liu
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, And State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Bin Wang
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, And State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Shijie Yang
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, And State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Tao Xu
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, And State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Linling Yu
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, And State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Xing Wang
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, And State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Man Cheng
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, And State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Min Zhou
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, And State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Weihong Chen
- Department of Occupational & Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, And State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China.
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Tsai HJ, Wu CF, Hsiung CA, Lee CH, Wang SL, Chen ML, Chen CC, Huang PC, Wang YH, Chen YA, Chen BH, Chuang YS, Hsieh HM, Wu MT. Longitudinal changes in oxidative stress and early renal injury in children exposed to DEHP and melamine in the 2011 Taiwan food scandal. ENVIRONMENT INTERNATIONAL 2022; 158:107018. [PMID: 34991270 DOI: 10.1016/j.envint.2021.107018] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 11/15/2021] [Accepted: 11/30/2021] [Indexed: 06/14/2023]
Abstract
In 2011, phthalates, mainly di-(2-ethylhexyl) phthalate (DEHP), were found to have been added to a variety of foods in Taiwan, increasing the risk of microalbuminuria in children. Exposure to melamine perhaps modifies that risk. This prospective cohort study investigates whether renal injury resulting from exposure to DEHP-tainted foods from the 2011 Taiwan Food Scandal is reversed over time. The temporal and interactive effects of past daily DEHP intake, current daily DEHP intake, and urinary melamine levels on oxidative stress and renal injury were also examined. Two hundred possibly DEHP-affected children (aged < 18 years) were enrolled in the first survey wave (August 2012-January 2013), with 170 and 159 children in the second (July 2014-February 2015) and third waves (May 2016-October 2016), respectively. The first wave comprised questionnaires that were used to collect information about possible past daily DEHP intake from DEHP-tainted foods. One-spot first morning urine samples were collected to measure melamine levels, phthalate metabolites, and markers indicating oxidative stress (malondialdehyde and 8-oxo-2'-deoxyguanosine), and renal injury (albumin/creatinine ratio (ACR) and N-acetyl-beta-D-glucosaminidase) in all three waves. Generalized estimating equation (GEE) modeling revealed that both past daily DEHP intake and time might affect urinary ACR. However, most interactions were negative and significant correlation was observed only during the second wave (P for interaction = 0.014) in the group with the highest past daily DEHP intake (>50 μg/kg/day). Urinary melamine levels were found to correlate significantly with both urinary ACR and oxidative stress markers. The highest impact associated with exposure to DEHP-tainted foods in increasing urinary ACR of children was observed during the first wave, and the effect may partially diminish over time. These results suggest that continuous monitoring of renal health and other long-term health consequences is required in individuals who were affected by the scandal in 2011.
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Affiliation(s)
- Hui-Ju Tsai
- Graduate Institute of Clinical Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Family Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Family Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Family Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chia-Fang Wu
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; International Master Program of Translational Medicine, National United University, Miaoli, Taiwan
| | - Chao A Hsiung
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Taiwan
| | - Chieng-Hung Lee
- Department of Public Health, College of Health Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Shu-Li Wang
- Institute of Environmental Health Sciences, National Health Research Institutes, Zhunan, Taiwan
| | - Mei-Lien Chen
- Institute of Environmental and Occupational Health Sciences, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chu-Chih Chen
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Taiwan
| | - Po-Chin Huang
- Institute of Environmental Health Sciences, National Health Research Institutes, Zhunan, Taiwan
| | - Yin-Han Wang
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Taiwan
| | - Yuh-An Chen
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Taiwan
| | - Bai-Hsiun Chen
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Laboratory Medicine and Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Yun-Shiuan Chuang
- Department of Family Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hui-Min Hsieh
- Department of Public Health, College of Health Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ming-Tsang Wu
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Family Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Public Health, College of Health Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan; PhD Program in Environmental and Occupational Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Rapid Screening Research Center for Toxicology and Biomedicine, National Sun Yat-Sen University, Kaohsiung, Taiwan.
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Non-Invasive Measurement of Exercise-Induced Oxidative Stress in Response to Physical Activity. A Systematic Review and Meta-Analysis. Antioxidants (Basel) 2021; 10:antiox10122008. [PMID: 34943111 PMCID: PMC8698343 DOI: 10.3390/antiox10122008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/10/2021] [Accepted: 12/14/2021] [Indexed: 11/17/2022] Open
Abstract
Physical activity may benefit health by modulating oxidative stress and inflammation. However, the selection of suitable exercise-induced oxidative stress biomarkers is still challenging. This study aimed at systematically summarizing the available evidence on exercise-induced oxidative stress measured in urine and/or saliva. Two meta-analyses including the most frequently quantified biomarkers of oxidative stress, namely, urinary isoprostane and DNA oxidation products, were performed. Three electronic databases (PubMed, EMBASE and Cochrane CENTRAL) were interrogated. Among 4479 records, 43 original articles were included in the systematic review and 11 articles were included in meta-analysis I and II, respectively. We observed a pooled trend of increase of urinary isoprostanes in response to physical activity (+0.95, 95% CI: -0.18; 2.09). In comparison with aerobic exercise, anaerobic training determined a greater induction of isoprostanes (+5.21, 95% CI: 2.76; 7.66, p < 0.0001), which were markedly increased after vigorous physical activity (+6.01, 95% CI: 1.18; 10.84, p < 0.001) and slightly decreased in response to exercise interventions protracted over time (e.g., months) (-1.19, 95% CI: -2.25; -0.12, p < 0.001). We recommend the most integrative approach of oxidative stress multi-marker panels in response to physical activity instead of selecting one preferential biomarker to quantify physical activity-induced oxidative stress in humans.
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Taniguchi A, Tsuge M, Miyahara N, Tsukahara H. Reactive Oxygen Species and Antioxidative Defense in Chronic Obstructive Pulmonary Disease. Antioxidants (Basel) 2021; 10:antiox10101537. [PMID: 34679673 PMCID: PMC8533053 DOI: 10.3390/antiox10101537] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/23/2021] [Accepted: 09/24/2021] [Indexed: 02/06/2023] Open
Abstract
The respiratory system is continuously exposed to endogenous and exogenous oxidants. Chronic obstructive pulmonary disease (COPD) is characterized by chronic inflammation of the airways, leading to the destruction of lung parenchyma (emphysema) and declining pulmonary function. It is increasingly obvious that reactive oxygen species (ROS) and reactive nitrogen species (RNS) contribute to the progression and amplification of the inflammatory responses related to this disease. First, we described the association between cigarette smoking, the most representative exogenous oxidant, and COPD and then presented the multiple pathophysiological aspects of ROS and antioxidative defense systems in the development and progression of COPD. Second, the relationship between nitric oxide system (endothelial) dysfunction and oxidative stress has been discussed. Third, we have provided data on the use of these biomarkers in the pathogenetic mechanisms involved in COPD and its progression and presented an overview of oxidative stress biomarkers having clinical applications in respiratory medicine, including those in exhaled breath, as per recent observations. Finally, we explained the findings of recent clinical and experimental studies evaluating the efficacy of antioxidative interventions for COPD. Future breakthroughs in antioxidative therapy may provide a promising therapeutic strategy for the prevention and treatment of COPD.
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Affiliation(s)
- Akihiko Taniguchi
- Department of Hematology, Oncology, Allergy and Respiratory Medicine, Okayama University Academic Field of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8558, Japan;
| | - Mitsuru Tsuge
- Department of Pediatrics, Okayama University Academic Field of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8558, Japan;
| | - Nobuaki Miyahara
- Department of Medical Technology, Okayama University Academic Field of Health Sciences, Okayama 700-8558, Japan;
| | - Hirokazu Tsukahara
- Department of Pediatrics, Okayama University Academic Field of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8558, Japan;
- Correspondence:
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Particle and metal exposure in Parisian subway: Relationship between exposure biomarkers in air, exhaled breath condensate, and urine. Int J Hyg Environ Health 2021; 237:113837. [PMID: 34482160 DOI: 10.1016/j.ijheh.2021.113837] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 08/25/2021] [Accepted: 08/30/2021] [Indexed: 11/24/2022]
Abstract
Subway particulate toxicity results from in vitro and in vivo studies diverge and call for applied human research on outcomes from chronic exposures and potential exposure biomarkers. We aimed to (1) quantify airborne particulate matter (PM) concentrations (mass and number) and metal concentrations in exhaled breath condensate (EBC), urine, and PM; (2) investigate their associations (EBC vs. PM vs. urine); and (3) assess the relevance of EBC in biomonitoring. Nine subway workers in three jobs: station agents, locomotive operators and security guards were monitored during their 6-h shifts over two consecutive weeks. Six-hour weighed average mass concentrations expressed as PM10, PM2.5 and their metal concentrations were determined. Urine and EBC samples were collected pre- and post-shift. Ultrafine particle (UFP) number concentrations were quantified in PM and EBC samples. Metal concentrations in urine and EBC were standardized by creatinine and EBC volume, respectively, and log-transformed. Associations were investigated using Pearson correlation and linear mixed regression models, with participant's ID as random effect. PM concentrations were below occupational exposure limits (OEL) and varied significantly between jobs. Locomotive operators had the highest exposure (189 and 137 μg/m3 for PM10 and PM2.5, respectively), while station agents had the highest UFP exposure (1.97 × 104 particles/cm3). Five metals (Al, Fe, Zn, Cu, and Mn) in PM2.5 and three (Al, Fe, and Zn) in PM10 were above the limit of quantification (LOQ). Fe, Cu, Al and Zn were the most abundant by mass fraction in PM. In EBC, the metal concentrations in decreasing order were: Zn > Cu > Ni > Ba > Mn. Security guards had the highest EBC metal concentrations, and in particular Zn and Cu. Urinary metal concentrations in decreasing order were: Si > Zn > Mo > Ti > Cu > Ba ≈ Ni > Co. All urinary metal concentrations from the subway workers were similar to concentrations found in the general population. A statistically significant relationship was found for ultrafine particle number concentrations in PM and in EBC. Zn and Cu concentrations in post-shift EBC were associated with Zn and Cu concentrations in PM10 and with post-shift urinary Zn and Cu concentrations. Therefore, EBC appears a relevant matrix for assessing exposure to UFP in human biomonitoring when inhalation is a primary route of exposure. We found different temporal variation patterns between particle and metal exposures in three matrices (PM, urine, EBC) quantified daily over two full weeks in subway workers. These patterns might be related to metal oxidation, particulates' solubility and size as well as their lung absorption capabilities, which need to be further explored in toxicological research. Further research should also focus on understanding possible influences of low chronic exposures to subway particulates on health in larger cohorts.
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Gao S, Quick C, Guasch-Ferre M, Zhuo Z, Hutchinson JM, Su L, Hu F, Lin X, Christiani D. The Association Between Inflammatory and Oxidative Stress Biomarkers and Plasma Metabolites in a Longitudinal Study of Healthy Male Welders. J Inflamm Res 2021; 14:2825-2839. [PMID: 34234508 PMCID: PMC8254568 DOI: 10.2147/jir.s316262] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 06/02/2021] [Indexed: 12/25/2022] Open
Abstract
INTRODUCTION Human metabolism and inflammation are closely related modulators of homeostasis and immunity. Metabolic profiling is a useful tool to understand the association between metabolism and inflammation at a systemic level. OBJECTIVE To investigate the longitudinal associations between the concentration of plasma metabolites and biomarkers related to inflammation and oxidative stress. METHODS We conducted a repeated cross-sectional analysis consisting of 8 short-term panels that included 88 healthy adult male welders in Massachusetts, USA. In each panel, we collected 1-6 repeated measurements of blood and urine. We used a human vascular injury panel assay and custom cytokine/chemokine assay to quantify inflammatory biomarker plasma levels, liquid chromatography-mass spectrometry to quantify the concentrations of 665 plasma metabolites, and a competitive enzyme-linked immunoassay to quantify urinary 8-OHdG and 8-isoprostane levels. We used linear mixed effects models to estimate the longitudinal association between each inflammatory and oxidative stress biomarker and each metabolite. RESULTS At a 5% FDR threshold, we detected ≥1metabolite association for 8 unique inflammatory and oxidative stress biomarkers: urinary 8-isoprostane, plasma C-reactive protein (CRP), serum amyloid A (SAA), intercellular adhesion molecule 1, circulating vascular cell adhesion molecule-1, interleukin 8 (IL-8), interleukin 10 (IL-10) and vascular endothelial growth factor. Specifically, 3 metabolites in the androgenic steroids pathway were negatively associated with SAA; 3 dihydrosphingomyelins metabolites were positively associated with 1 or more of CRP, SAA, IL-8 and IL-10; 4 metabolites in acyl choline metabolism pathways were negatively associated with IL-8; 7 lysophospholipid metabolites were negatively associated with 1 or more of CRP, SAA and IL-8; 4 sphingomyelins were positively associated with CRP and/or SAA; and 10 metabolites in the xanthine pathway were positively associated with urinary 8-isoprostane. CONCLUSION We found that metabolites in phospholipid groups had strong associations with multiple inflammatory biomarkers, especially CRP, SAA and IL-8. The mechanism of these associations warrants further investigation.
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Affiliation(s)
- Shangzhi Gao
- Environmental Health, Harvard University T H Chan School of Public Health, Boston, MA, USA
| | - Corbin Quick
- Biostatistics, Harvard University T H Chan School of Public Health, Boston, MA, USA
| | - Marta Guasch-Ferre
- Nutrition, Harvard University T H Chan School of Public Health, Boston, MA, USA
| | - Zhu Zhuo
- Biostatistics, Harvard University T H Chan School of Public Health, Boston, MA, USA
| | - John M Hutchinson
- Biostatistics, Harvard University T H Chan School of Public Health, Boston, MA, USA
| | - Li Su
- Environmental Health, Harvard University T H Chan School of Public Health, Boston, MA, USA
| | - Frank Hu
- Nutrition, Harvard University T H Chan School of Public Health, Boston, MA, USA
| | - Xihong Lin
- Biostatistics, Harvard University T H Chan School of Public Health, Boston, MA, USA
| | - David Christiani
- Environmental Health, Harvard University T H Chan School of Public Health, Boston, MA, USA
- Pulmonary and Critical Care Division, Department of Medicine, MA General Hospital, Boston, Massachusetts, USA
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Omari Shekaftik S, Nasirzadeh N. 8-Hydroxy-2'-deoxyguanosine (8-OHdG) as a biomarker of oxidative DNA damage induced by occupational exposure to nanomaterials: a systematic review. Nanotoxicology 2021; 15:850-864. [PMID: 34171202 DOI: 10.1080/17435390.2021.1936254] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
In nuclear and mitochondrial DNA, 8-hydroxy-2'-deoxyguanosine (8-OHdG) is one of the predominant forms of reactive oxygen species (ROSs) lesions, which commonly used as a biomarker for oxidative stress. Studies showed that the different nanomaterials can induce toxicity by ROSs in human body. So, this study is going to review the studies about oxidative DNA damage caused by occupational exposure to nanomaterials, using 8-OHdG biomarker.Systematic review was managed based on Cochrane systematic review guideline. Literature search was conducted in scientific databases with the main terms of "biomarkers," "biological markers," combined with "occupational exposure" and "nanomaterials." All papers in the field of occupational exposure to nanomaterials until 2020 December were included. To evaluate the quality and bias of studies, GRADE method (Grading of Recommendations, Assessment, Development, and Evaluation) was used.Two hundred twenty-six studies were primarily achieved. By considering the inclusion criteria, overall 8 articles were selected. The majority of the studies were classified as the moderate quality studies (six studies). Also, the study-level bias was critical. This review shows that there is a significant relationship between job title and amount of produced nanomaterials and the existence of 8-OHdG. Also, the levels of 8-OHdG can be measured in urine, blood, and inhalation samples by instrumental procedures.Oxidative damages are an important threat for workers exposed to nanomaterial. Blood and EBC 8-OHdG level can be introduced as a biomarker for metal nanomaterials, but urinary 8-OHdG needs to be taken with caution. So, it is recommended that evaluation not be solely based on one biomarker.
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Affiliation(s)
- Soqrat Omari Shekaftik
- Department of Occupational Health Engineering, Faculty of public health, Iran University of Medical Sciences, Tehran, Iran
| | - Nafiseh Nasirzadeh
- Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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Guseva Canu I, Hemmendinger M, Sauvain JJ, Suarez G, Hopf NB, Pralong JA, Ben Rayana T, Besançon S, Sakthithasan K, Jouannique V, Debatisse A. Respiratory Disease Occupational Biomonitoring Collaborative Project (ROBoCoP): A longitudinal pilot study and implementation research in the Parisian transport company. J Occup Med Toxicol 2021; 16:22. [PMID: 34167564 PMCID: PMC8222705 DOI: 10.1186/s12995-021-00312-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 06/08/2021] [Indexed: 12/19/2022] Open
Abstract
The ROBoCoP project is launched within the EU COST Action CA16113 “CliniMARK” aiming to increase the number of clinically validated biomarkers and focused on chronic obstructive pulmonary disease (COPD) biomarker development and validation. ROBoCoP encompasses two consecutive studies consisting of a pilot study followed by a field study. The pilot study is a longitudinal exposure assessment and biomarker study aiming at: 1-understanding the suitability of the candidate biomarkers in surveying populations at risk such as workers exposed to COPD causing agents; 2-determining the best sampling plan with respect to the half-life of the candidate biomarkers; 3-implementing and validating the sampling procedures and analytical methods; 4-selecting the best suitable biomarkers to be measured in the field. Each study participant is surveyed every day during the 6–8 h work-shifts for two consecutive weeks. The field study has an implementation research designe that enabled us to demonstrate the applicability of the standardized protocol for biomarker measurements in occupational settings while also assessing the biomarkers’ validity. ROBoCoP will focus on particulate matter (PM) exposure measurements, exposure biomarkers and a series of effect biomarkers, including markers of lipoperoxidation: 8-isoprostane, malondialdehyd in exhaled breath condensate (EBC) and urine, potential markers of nitrosative stress: NO2−, NO3− and formate anion in EBC; markers of DNA oxidation: 8-hydroxy-2’deoxyguanosine in EBC and urine, marker of genotoxicity: micronuclei in buccal cells, and oxidative potential in exhaled air (OPEA). OPEA appears particularly promising as a clinical biomarker for detecting COPD, and will be tested independently and as part of a biomarker panel. COPD diagnosis will be performed by an experienced occupational physician according to international diagnostic standards and confirmed by a pulmonologist. This research will include approximatively 300 underground subway workers randomly selected from the personnel registry of a large Parisian transport company. Underground subways are suggested as the most PM polluted urban transport environment. We believe this occupational exposure is relevant for biomonitoring of workers and early detection of respiratory diseases.
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Affiliation(s)
- I Guseva Canu
- 1Department of Occupational and Environmental Health (DSTE), Centre for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland.
| | - M Hemmendinger
- 1Department of Occupational and Environmental Health (DSTE), Centre for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland
| | - J J Sauvain
- 1Department of Occupational and Environmental Health (DSTE), Centre for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland
| | - G Suarez
- 1Department of Occupational and Environmental Health (DSTE), Centre for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland
| | - N B Hopf
- 1Department of Occupational and Environmental Health (DSTE), Centre for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland
| | - J A Pralong
- Division of Pulmonary Diseases, Geneva University Hospitals and Faculty of Medicine and University of Geneva, Geneva, Switzerland
| | - T Ben Rayana
- 1Department of Occupational and Environmental Health (DSTE), Centre for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland.,Autonomous Paris Transport Authority (RATP), Paris, France
| | - S Besançon
- Autonomous Paris Transport Authority (RATP), Paris, France
| | - K Sakthithasan
- Autonomous Paris Transport Authority (RATP), Paris, France
| | - V Jouannique
- Autonomous Paris Transport Authority (RATP), Paris, France
| | - A Debatisse
- Autonomous Paris Transport Authority (RATP), Paris, France
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Hoover SE, Il'yasova D, Fontaine KR, Spasojevic I, Gower BA, Goss AM. A Pilot Study of Associations Between Visceral Fat, IL-6, and Urinary F 2-Isoprostanes in Older Adults Exposed to a Diet Intervention. Curr Dev Nutr 2021; 5:nzab082. [PMID: 34212125 PMCID: PMC8238660 DOI: 10.1093/cdn/nzab082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/12/2021] [Accepted: 05/14/2021] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Short-term markers of successful visceral adipose tissue (VAT) loss are needed. Urinary F2-isoprostanes might serve as a marker for intensified lipid metabolism, whereas circulating IL-6 might stimulate fat oxidation and enhance mobilization of VAT. OBJECTIVES This pilot study was designed to explore the hypotheses that 1) reduction in VAT is associated with increase in IL-6, and 2) that increases in urinary F2-isoprostanes are associated with increases in IL-6 and reduction in VAT. METHODS Eighteen participants (aged 60-75 y, BMI 30-40 kg/m2) were randomly assigned to either a very-low-carbohydrate diet (VLCD; <10:25:>65% energy from carbohydrate:protein:fat) or a low-fat diet (LFD; 55:25:20%) for 8 wk. Changes in fat distribution were assessed by MRI. Four urinary F2-isoprostane isomers were quantified in 24-h urine collection using LC-MS/MS analyses. Changes in 4 F2-isoprostane isomers were summarized using factor analysis (Δ-F2-isoprostane factor). Statistical significance was set at P < 0.1. RESULTS Within the VLCD group, change in VAT was inversely associated with change in IL-6 (r = -0.778, P = 0.069) and Δ-F2-isoprostane factor (r = -0.690, P = 0.086), demonstrating that participants who maintained higher concentrations of F2-isoprostane factor across the intervention showed greater decreases in VAT. A positive relation between Δ-F2-isoprostane factor and change in IL-6 was observed (r = 0.642, P = 0.062). In the LFD group, no significant associations between changes in VAT, F2-isoprostane factor, or IL-6 were observed. CONCLUSIONS Results from this exploratory study in older adults with obesity suggest that, in the context of a VLCD, IL-6 could be involved in VAT mobilization, and urinary F2-isoprostanes could reflect intensified oxidation of mobilized fatty acids.Trial registration: This study is registered at clinicaltrials.gov as NCT02760641.
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Affiliation(s)
- Sarah E Hoover
- Department of Nutrition Sciences, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Dora Il'yasova
- MTX Group, Inc., Albany, New York, NY, USA
- Duke University School of Medicine, Durham, NC, USA
| | - Kevin R Fontaine
- Department of Health Behavior, University of Alabama at Birmingham, Birmingham, AL, USA
| | | | - Barbara A Gower
- Department of Nutrition Sciences, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Amy M Goss
- Department of Nutrition Sciences, University of Alabama at Birmingham, Birmingham, AL, USA
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Coello K, Bøgh HL, Stanislaus S, Kjærstad HL, Melbye SA, Ormstrup Sletved KS, Poulsen HE, Vinberg M, Kessing LV. Higher systemic oxidatively generated DNA and RNA damage in patients with newly diagnosed bipolar disorder and their unaffected first-degree relatives. Free Radic Biol Med 2021; 168:226-233. [PMID: 33798615 DOI: 10.1016/j.freeradbiomed.2021.03.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 03/08/2021] [Accepted: 03/19/2021] [Indexed: 01/16/2023]
Abstract
BACKGROUND Prior studies in bipolar disorders (BD) have suggested that oxidative stress and cellular ageing play a key role in the pathophysiology of BD. Nevertheless, oxidative stress has not been investigated in patients with newly diagnosed BD and in their unaffected first-degree relatives (UR), compared with healthy control individuals (HC). METHODS We investigated the level of systemic oxidative damage to DNA and RNA measured by urinary excretion of 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG) and 8-oxo-7,8-dihydroguanosine (8-oxoGuo) levels, respectively, in 360 patients with newly diagnosed BD, 92 of their UR and 197 HC. RESULTS Independent of lifestyle and demographic variables, levels of both 8-oxoGuo and 8-oxodG was 17.1% (B = 1.171, 95%CI = 1.125-1.219, p < 0.001) and 21.2% (B = 1.212, 95%CI = 1.145-1.283, p < 0.001) higher, respectively, in patients with BD compared with HC and 13.3% (B = 1.133, 95%CI = 1.069-1.200, p < 0.001) and 26.6% (B = 1.266, 95%CI = 1.167-1.374, p < 0.001) higher, respectively, in UR compared with HC. Neither 8-oxoGuo nor 8-oxodG levels differed between patients with BD and UR. These findings were replicated in patients in full or partial remission and were consistent both in BD type I and II. CONCLUSION Overall, the findings of higher oxidative stress in patients with newly diagnosed BD and their UR suggest that systemic nucleoside damage by oxidative stress is present prior to onset and in the early stages of BD thereby potentially representing trait markers of BD.
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Affiliation(s)
- Klara Coello
- Copenhagen Affective Disorders Research Centre (CADIC), Psychiatric Center Copenhagen, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark.
| | - Helena Lykke Bøgh
- Copenhagen Affective Disorders Research Centre (CADIC), Psychiatric Center Copenhagen, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Sharleny Stanislaus
- Copenhagen Affective Disorders Research Centre (CADIC), Psychiatric Center Copenhagen, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Hanne Lie Kjærstad
- Copenhagen Affective Disorders Research Centre (CADIC), Psychiatric Center Copenhagen, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Sigurd A Melbye
- Copenhagen Affective Disorders Research Centre (CADIC), Psychiatric Center Copenhagen, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Kimie Stefanie Ormstrup Sletved
- Copenhagen Affective Disorders Research Centre (CADIC), Psychiatric Center Copenhagen, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Henrik Enghusen Poulsen
- Faculty of Health and Medical Sciences, University of Copenhagen, Denmark; Department of Clinical Pharmacology, Copenhagen University Hospital Bispebjerg Frederiksberg, Denmark; Research Unit, Nordsjaellands Hospital Hilleroed, Denmark
| | - Maj Vinberg
- Copenhagen Affective Disorders Research Centre (CADIC), Psychiatric Center Copenhagen, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Denmark; Psychiatric Research Unit, Psychiatric Centre North Zealand, Copenhagen University Hospital, Hillerød, Denmark
| | - Lars Vedel Kessing
- Copenhagen Affective Disorders Research Centre (CADIC), Psychiatric Center Copenhagen, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
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Altomare A, Baron G, Gianazza E, Banfi C, Carini M, Aldini G. Lipid peroxidation derived reactive carbonyl species in free and conjugated forms as an index of lipid peroxidation: limits and perspectives. Redox Biol 2021; 42:101899. [PMID: 33642248 PMCID: PMC8113032 DOI: 10.1016/j.redox.2021.101899] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 02/01/2021] [Accepted: 02/12/2021] [Indexed: 02/08/2023] Open
Abstract
Reactive carbonyl species (RCS) formed by lipidperoxidation as free forms or as enzymatic and non-enzymatic conjugates are widely used as an index of oxidative stress. Besides general measurements based on derivatizing reactions, more selective and sensitive MS based analyses have been proposed in the last decade. Untargeted and targeted methods for the measurement of free RCS and adducts have been described and their applications to in vitro and ex vivo samples have permitted the identification of many biological targets, reaction mechanisms and adducted moieties with a particular relevance to RCS protein adducts. The growing interest in protein carbonylation can be explained by considering that protein adducts are now recognized as being involved in the damaging action of oxidative stress so that their measurement is performed not only to obtain an index of lipid peroxidation but also to gain a deeper insight into the molecular mechanisms of oxidative stress. The aim of the review is to discuss the most novel analytical approaches and their application for profiling reactive carbonyl species and their enzymatic and non-enzymatic metabolites as an index of lipid-oxidation and oxidative stress. Limits and perspectives will be discussed.
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Affiliation(s)
- Alessandra Altomare
- Department of Pharmaceutical Sciences (DISFARM), Università Degli Studi di Milano, Via Mangiagalli 25, 20133, Milan, Italy
| | - Giovanna Baron
- Department of Pharmaceutical Sciences (DISFARM), Università Degli Studi di Milano, Via Mangiagalli 25, 20133, Milan, Italy
| | - Erica Gianazza
- Centro Cardiologico Monzino, IRCCS, Via Parea 4, 20138, Milan, Italy
| | - Cristina Banfi
- Centro Cardiologico Monzino, IRCCS, Via Parea 4, 20138, Milan, Italy
| | - Marina Carini
- Department of Pharmaceutical Sciences (DISFARM), Università Degli Studi di Milano, Via Mangiagalli 25, 20133, Milan, Italy
| | - Giancarlo Aldini
- Department of Pharmaceutical Sciences (DISFARM), Università Degli Studi di Milano, Via Mangiagalli 25, 20133, Milan, Italy.
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Watanabe S, Li Y, Kawasaki Y, Ootsuyama Y, Kawai K. Health examination results and work environment factors affecting urinary 8-hydroxy-2'-deoxyguanosine levels. J Occup Health 2021; 63:e12210. [PMID: 33689200 PMCID: PMC7945954 DOI: 10.1002/1348-9585.12210] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 02/10/2021] [Accepted: 02/12/2021] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE Oxidative stress is considered to cause lifestyle-related diseases, including cancer. Urinary 8-hydroxy-2'-deoxyguanosine (8-OHdG) is widely analyzed as an oxidative stress marker. We extensively scrutinized the relationships between 8-OHdG levels and lifestyle choices as carcinogenic factors. METHODS In this study, we investigated health examination results and working conditions affecting urinary 8-OHdG levels in 503 male workers. RESULTS The urinary 8-OHdG level was positively associated with high blood sugar and leanness in smokers. In addition, urinary 8-OHdG tended to increase with organic solvent or hydrochloric acid exposure, as well as long working hours. On the other hand, the urinary 8-OHdG level was negatively associated with high plasma LDL-cholesterol levels in non-smokers and anemia. CONCLUSION According to the results, anemia decreased the oxidative stress, regardless of smoking status, while leanness or high blood sugar increased the oxidative stress in smokers, and the presence of plasma cholesterol contributed to the lower oxidative stress in non-smokers. Certain types of occupational exposure may cause oxidative stress. The measurement of urinary 8-OHdG at annual health checks may be a useful biomarker for preventing lifestyle- and work-related diseases.
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Affiliation(s)
- Sintaroo Watanabe
- Department of Environmental OncologyInstitute of Industrial Ecological SciencesUniversity of Occupational and Environmental Health JapanKitakyushuJapan
- Japan Marine United Corporation Kure ShipyardHiroshimaJapan
| | - Yun‐Shan Li
- Department of Environmental OncologyInstitute of Industrial Ecological SciencesUniversity of Occupational and Environmental Health JapanKitakyushuJapan
| | - Yuya Kawasaki
- Department of Environmental OncologyInstitute of Industrial Ecological SciencesUniversity of Occupational and Environmental Health JapanKitakyushuJapan
| | - Yuko Ootsuyama
- Department of Environmental OncologyInstitute of Industrial Ecological SciencesUniversity of Occupational and Environmental Health JapanKitakyushuJapan
| | - Kazuaki Kawai
- Department of Environmental OncologyInstitute of Industrial Ecological SciencesUniversity of Occupational and Environmental Health JapanKitakyushuJapan
- Center for Stress‐related Disease Control and PreventionUniversity of Occupational and Environmental Health JapanKitakyushuJapan
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Rapid Liquid Chromatography-Tandem Mass Spectrometry Analysis of Two Urinary Oxidative Stress Biomarkers: 8-oxodG and 8-isoprostane. Antioxidants (Basel) 2020; 10:antiox10010038. [PMID: 33396292 PMCID: PMC7823279 DOI: 10.3390/antiox10010038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 12/18/2020] [Accepted: 12/23/2020] [Indexed: 12/23/2022] Open
Abstract
Human biomonitoring of oxidative stress relies on urinary effect biomarkers such as 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG), and 8-iso-prostaglandin F2α (8-isoprostane); however, their levels reported for similar populations are inconsistent in the scientific literature. One of the reasons is the multitude of analytical methods with varying degrees of selectivity used to quantify these biomarkers. Single-analyte methods are often used, requiring multiple injections that increase both time and cost. We developed a rapid ultra-high-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method to quantify both urinary biomarkers simultaneously. A reversed-phase column using a gradient consisting of 0.1% acetic acid in water and 0.1% acetic acid in methanol/acetonitrile (70:30) was used for separation. The MS detection was by positive (8-oxodG) and negative (8-isoprostane) ion-mode by multiple reaction monitoring. Very low limit of detection (<20 pg/mL), excellent linearity (R2 > 0.999), accuracy (near 100%), and precision (CV < 10%) both for intra-day and inter-day experiments were achieved, as well as high recovery rates (>91%). Matrix effects were observed but were compensated by using internal standards. Our newly developed method is applicable for biomonitoring studies as well as large epidemiological studies investigating the effect of oxidative damage, as it requires only minimal clean up using solid phase extraction.
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Pelclova D, Zdimal V, Komarc M, Schwarz J, Ondracek J, Ondrackova L, Kostejn M, Vlckova S, Fenclova Z, Dvorackova S, Lischkova L, Klusackova P, Kolesnikova V, Rossnerova A, Navratil T. Three-Year Study of Markers of Oxidative Stress in Exhaled Breath Condensate in Workers Producing Nanocomposites, Extended by Plasma and Urine Analysis in Last Two Years. NANOMATERIALS 2020; 10:nano10122440. [PMID: 33291323 PMCID: PMC7762143 DOI: 10.3390/nano10122440] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 12/02/2020] [Accepted: 12/03/2020] [Indexed: 12/16/2022]
Abstract
Human data concerning exposure to nanoparticles are very limited, and biomarkers for monitoring exposure are urgently needed. In a follow-up of a 2016 study in a nanocomposites plant, in which only exhaled breath condensate (EBC) was examined, eight markers of oxidative stress were analyzed in three bodily fluids, i.e., EBC, plasma and urine, in both pre-shift and post-shift samples in 2017 and 2018. Aerosol exposures were monitored. Mass concentration in 2017 was 0.351 mg/m3 during machining, and 0.179 and 0.217 mg/m3 during machining and welding, respectively, in 2018. In number concentrations, nanoparticles formed 96%, 90% and 59%, respectively. In both years, pre-shift elevations of 50.0% in EBC, 37.5% in plasma and 6.25% in urine biomarkers were observed. Post-shift elevation reached 62.5% in EBC, 68.8% in plasma and 18.8% in urine samples. The same trend was observed in all biological fluids. Individual factors were responsible for the elevation of control subjects' afternoon vs. morning markers in 2018; all were significantly lower compared to those of workers. Malondialdehyde levels were always acutely shifted, and 8-hydroxy-2-deoxyguanosine levels best showed chronic exposure effect. EBC and plasma analysis appear to be the ideal fluids for bio-monitoring of oxidative stress arising from engineered nanomaterials. Potential late effects need to be targeted and prevented, as there is a similarity of EBC findings in patients with silicosis and asbestosis.
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Affiliation(s)
- Daniela Pelclova
- Department of Occupational Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Na Bojisti, 128 00 Prague, Czech Republic; (S.V.); (Z.F.); (L.L.); (P.K.); (V.K.)
- Correspondence: ; Tel.: +420-224-964-532
| | - Vladimir Zdimal
- Institute of Chemical Process Fundamentals CAS, Rozvojova 1/135, 165 02 Prague, Czech Republic; (V.Z.); (J.S.); (J.O.); (L.O.); (M.K.)
| | - Martin Komarc
- Institute of Biophysics and Informatics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Salmovska, 120 00 Prague, Czech Republic; or
- Faculty of Physical Education and Sport, Charles University and General University Hospital in Prague, José Martího 31, 162 52 Prague, Czech Republic
| | - Jaroslav Schwarz
- Institute of Chemical Process Fundamentals CAS, Rozvojova 1/135, 165 02 Prague, Czech Republic; (V.Z.); (J.S.); (J.O.); (L.O.); (M.K.)
| | - Jakub Ondracek
- Institute of Chemical Process Fundamentals CAS, Rozvojova 1/135, 165 02 Prague, Czech Republic; (V.Z.); (J.S.); (J.O.); (L.O.); (M.K.)
| | - Lucie Ondrackova
- Institute of Chemical Process Fundamentals CAS, Rozvojova 1/135, 165 02 Prague, Czech Republic; (V.Z.); (J.S.); (J.O.); (L.O.); (M.K.)
| | - Martin Kostejn
- Institute of Chemical Process Fundamentals CAS, Rozvojova 1/135, 165 02 Prague, Czech Republic; (V.Z.); (J.S.); (J.O.); (L.O.); (M.K.)
| | - Stepanka Vlckova
- Department of Occupational Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Na Bojisti, 128 00 Prague, Czech Republic; (S.V.); (Z.F.); (L.L.); (P.K.); (V.K.)
| | - Zdenka Fenclova
- Department of Occupational Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Na Bojisti, 128 00 Prague, Czech Republic; (S.V.); (Z.F.); (L.L.); (P.K.); (V.K.)
| | - Stepanka Dvorackova
- Department of Machining and Assembly, Department of Engineering Technology, Department of Material Science, Faculty of Mechanical Engineering, Technical University in Liberec, Studentska 1402/2, 461 17 Liberec, Czech Republic;
| | - Lucie Lischkova
- Department of Occupational Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Na Bojisti, 128 00 Prague, Czech Republic; (S.V.); (Z.F.); (L.L.); (P.K.); (V.K.)
| | - Pavlina Klusackova
- Department of Occupational Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Na Bojisti, 128 00 Prague, Czech Republic; (S.V.); (Z.F.); (L.L.); (P.K.); (V.K.)
| | - Viktoriia Kolesnikova
- Department of Occupational Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Na Bojisti, 128 00 Prague, Czech Republic; (S.V.); (Z.F.); (L.L.); (P.K.); (V.K.)
| | - Andrea Rossnerova
- Department of Genetic Toxicology and Epigenetics, Institute of Experimental Medicine CAS, Videnska 1083, 142 20 Prague, Czech Republic;
| | - Tomas Navratil
- J. Heyrovský Institute of Physical Chemistry CAS, Dolejškova, 182 23 Prague, Czech Republic;
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Reference Ranges of 8-Isoprostane Concentrations in Exhaled Breath Condensate (EBC): A Systematic Review and Meta-Analysis. Int J Mol Sci 2020; 21:ijms21113822. [PMID: 32481492 PMCID: PMC7311981 DOI: 10.3390/ijms21113822] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/25/2020] [Accepted: 05/26/2020] [Indexed: 12/14/2022] Open
Abstract
Isoprostanes are physiopathologic mediators of oxidative stress, resulting in lipid peroxidation. 8-isoprostane seems particularly useful for measuring oxidative stress damage. However, no reference range values are available for 8-isoprosante in exhaled breath condensate (EBC) of healthy adults, enabling its meaningful interpretation as a biomarker. We conducted this systematic review and meta-analysis according to the protocol following PROSPERO (CRD42020146623). After searching and analyzing the literature, we included 86 studies. After their qualitative synthesis and risk of bias assessment, 52 studies were included in meta-analysis. The latter focused on studies using immunological analytical methods and investigated how the concentrations of 8-isoprostane differ based on gender. We found that gender had no significant effect in 8-isoprostane concentration. Among other studied factors, such as individual characteristics and factors related to EBC collection, only the device used for EBC collection significantly affected measured 8-isoprostane concentrations. However, adjustment for the factors related to EBC collection, yielded uncertainty whether this effect is due to the device itself or to the other factors. Given this uncertainty, we estimated the reference range values of 8-isoprostane stratified by gender and EBC collection device. A better standardization of EBC collection seems necessary; as well more studies using chemical analytical methods to extend this investigation.
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Urinary 8-OHdG as a Biomarker for Oxidative Stress: A Systematic Literature Review and Meta-Analysis. Int J Mol Sci 2020; 21:ijms21113743. [PMID: 32466448 PMCID: PMC7313038 DOI: 10.3390/ijms21113743] [Citation(s) in RCA: 122] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/21/2020] [Accepted: 05/22/2020] [Indexed: 12/12/2022] Open
Abstract
Oxidative stress reflects a disturbance in the balance between the production and accumulation of reactive oxygen species (ROS). ROS are scavenged by the antioxidant system, but when in excess concentration, they can oxidize proteins, lipids, and DNA. DNA damage is usually repaired, and the oxidized products are excreted in urine. 8-hydroxy-2-deoxyguanosine is considered a biomarker for oxidative damage of DNA. It is needed to define background ranges for 8-OHdG, to use it as a measure of oxidative stress overproduction. We established a standardized protocol for a systematic review and meta-analysis to assess background ranges for urinary 8-OHdG concentrations in healthy populations. We computed geometric mean (GM) and geometric standard deviations (GSD) as the basis for the meta-analysis. We retrieved an initial 1246 articles, included 84 articles, and identified 128 study subgroups. We stratified the subgroups by body mass index, gender, and smoking status reported. The pooled GM value for urinary 8-OHdG concentrations in healthy adults with a mean body mass index (BMI) ≤ 25 measured using chemical methods was 3.9 ng/mg creatinine (interquartile range (IQR): 3 to 5.5 ng/mg creatinine). A significant positive association was observed between smoking and urinary 8-OHdG concentrations when measured by chemical analysis. No gender effect was observed.
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