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Dolan M, St. John N, Zaidi F, Doyle F, Fasullo M. High-throughput screening of the Saccharomyces cerevisiae genome for 2-amino-3-methylimidazo [4,5-f] quinoline resistance identifies colon cancer-associated genes. G3 (BETHESDA, MD.) 2023; 13:jkad219. [PMID: 37738679 PMCID: PMC11025384 DOI: 10.1093/g3journal/jkad219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 10/25/2022] [Accepted: 09/15/2023] [Indexed: 09/24/2023]
Abstract
Heterocyclic aromatic amines (HAAs) are potent carcinogenic agents found in charred meats and cigarette smoke. However, few eukaryotic resistance genes have been identified. We used Saccharomyces cerevisiae (budding yeast) to identify genes that confer resistance to 2-amino-3-methylimidazo[4,5-f] quinoline (IQ). CYP1A2 and NAT2 activate IQ to become a mutagenic nitrenium compound. Deletion libraries expressing human CYP1A2 and NAT2 or no human genes were exposed to either 400 or 800 µM IQ for 5 or 10 generations. DNA barcodes were sequenced using the Illumina HiSeq 2500 platform and statistical significance was determined for exactly matched barcodes. We identified 424 ORFs, including 337 genes of known function, in duplicate screens of the "humanized" collection for IQ resistance; resistance was further validated for a select group of 51 genes by growth curves, competitive growth, or trypan blue assays. Screens of the library not expressing human genes identified 143 ORFs conferring resistance to IQ per se. Ribosomal protein and protein modification genes were identified as IQ resistance genes in both the original and "humanized" libraries, while nitrogen metabolism, DNA repair, and growth control genes were also prominent in the "humanized" library. Protein complexes identified included the casein kinase 2 (CK2) and histone chaperone (HIR) complex. Among DNA Repair and checkpoint genes, we identified those that function in postreplication repair (RAD18, UBC13, REV7), base excision repair (NTG1), and checkpoint signaling (CHK1, PSY2). These studies underscore the role of ribosomal protein genes in conferring IQ resistance, and illuminate DNA repair pathways for conferring resistance to activated IQ.
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Affiliation(s)
- Michael Dolan
- College of Nanotechnology, Science, and Engineering, State University of NewYork at Albany, Albany, NY 12203, USA
| | - Nick St. John
- College of Nanotechnology, Science, and Engineering, State University of NewYork at Albany, Albany, NY 12203, USA
| | - Faizan Zaidi
- College of Nanotechnology, Science, and Engineering, State University of NewYork at Albany, Albany, NY 12203, USA
| | - Francis Doyle
- College of Nanotechnology, Science, and Engineering, State University of NewYork at Albany, Albany, NY 12203, USA
| | - Michael Fasullo
- College of Nanotechnology, Science, and Engineering, State University of NewYork at Albany, Albany, NY 12203, USA
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Zare M, Shateri Z, Nouri M, Sarbakhsh P, Eftekhari MH, Pourghassem Gargari B. Association between urinary levels of 8-hydroxy-2-deoxyguanosine and F 2a-isoprostane in male football players and healthy non-athlete controls with dietary inflammatory and antioxidant indices. Front Nutr 2023; 9:1101532. [PMID: 36761985 PMCID: PMC9902597 DOI: 10.3389/fnut.2022.1101532] [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: 11/17/2022] [Accepted: 12/28/2022] [Indexed: 01/25/2023] Open
Abstract
Purpose The relationship between the inflammatory and antioxidant potential of an athlete's diet and their oxidative biomarkers is an important area of investigation. Therefore, this study aimed to assess the excretion of 8-hydroxy-2-deoxyguanosine (8-OHdG) and F2alpha-isoprostane (F2a-IP) in the urine of male football players and healthy non-athlete controls. This study also aimed to examine the associations among the dietary inflammatory index (DII), the dietary total antioxidant capacity (DTAC), and the dietary phytochemical index (PI) with 8-OHdG and F2a-IP. Methods In this descriptive-analytical study, 45 male football players and 45 healthy non-athletes, who were individually matched based on age and body mass index (BMI), were recruited from Shiraz City, Iran. Fasted urine samples were analyzed for 8-OHdG and F2a-IP levels. Anthropometric measurements were performed, and body composition was assessed using a body composition analyzer. A valid food frequency questionnaire (FFQ) was used to calculate DII, DTAC, and PI scores. Data analysis was conducted using a generalized estimating equation (GEE) model. Results We found that 8-OHdG (β = -6.96), F2a-IP (β = -82.58), and DII (β = -2.06) were significantly lower, while DTAC (β = 2.37) and PI (β = 0.084) were significantly higher in the football player group compared with the non-athlete group (P < 0.001 for all variables). In all participants, dietary indices were significantly associated with oxidative biomarkers. DII was positively associated with 8-OHdG (β = 2.25; P < 0.001) and F2a-IP (β = 38.34; P < 0.001). Furthermore, negative associations between DTAC (β = -1.42; P < 0.001) and PI (β = -35.37; P < 0.001) with 8-OHdG were found. Moreover, DTAC (β = -17.34; P < 0.001) and PI (β = -428.11; P = 0.003) were negatively associated with F2a-IP. Conclusion The results of this study highlighted the importance of a healthy diet in reducing oxidative stress among football athletes. The levels of urinary biomarkers for DNA and lipid oxidation were found to be lower in football players compared to non-athletes. This suggests that following an anti-inflammatory and antioxidant-rich diet may help reduce oxidative stress in these individuals.
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Affiliation(s)
- Mahsa Zare
- Student Research Committee, Faculty of Nutrition and Food Science, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Zainab Shateri
- Student Research Committee, Ahvaz Jundishapour University of Medical Science, Ahvaz, Iran
| | - Mehran Nouri
- Department of Community Nutrition, School of Nutrition and Food Science, Shiraz University of Medical Sciences, Shiraz, Iran,Students' Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran,Health Policy Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Parvin Sarbakhsh
- Department of Statistics and Epidemiology, School of Public Health, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Hasan Eftekhari
- Department of Clinical Nutrition, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Bahram Pourghassem Gargari
- Nutrition Research Center, Department of Biochemistry and Diet Therapy, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran,*Correspondence: Bahram Pourghassem Gargari ✉ ; ✉
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Schroeder J, Reitz LK, Vieira FGK, da Silva EL, Di Pietro PF. Low to moderate adherence to 2018 diet and physical exercise recommendations of the World Cancer Research Fund/American Institute for Cancer Research is associated with prooxidant biochemical profile in women undergoing adjuvant breast cancer treatment. Nutr Res 2023; 109:1-11. [PMID: 36538844 DOI: 10.1016/j.nutres.2022.09.011] [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: 05/27/2022] [Revised: 08/05/2022] [Accepted: 09/17/2022] [Indexed: 11/07/2022]
Abstract
Adequate adherence to the 2018 diet and exercise recommendations of the World Cancer Research Fund/American Institute for Cancer Research (WCRF/AICR) can possibly result in less oxidative stress, lower risk to chemo- and radiotoxicity, lower risk of relapse, and increased quality of life in breast cancer survivors. This observational study aims to investigate the influence of adherence to updated recommendations of the WCRF/AICR on oxidative stress biomarkers in women with breast cancer undergoing adjuvant treatment (AT). We hypothesized that adherence to WCRF/AICR recommendations is inversely related to oxidative damage biomarkers and directly associated with antioxidant status. Women (n = 78) were evaluated before (T0) and after AT. After collecting anthropometric, physical activity, and food consumption data, a standardized score of adherence to WCRF/AICR recommendations was applied. The sample was divided into low-medium adherence and high adherence groups. Blood samples were collected at both timepoints for oxidative stress biomarkers analysis. Multiple linear regression analyzes were applied to verify associations between WCRF/AICR score and biomarkers. We found that low-medium adherence to WCRF/AICR recommendations at T0 affected lower levels of reduced glutathione (P= .003) and higher levels of lipid hydroperoxides (P= .002) and plasma carbonylated proteins (P= .001) after AT. The WCRF/AICR score at T0 was inversely associated with changes in plasma carbonylated protein concentrations after AT (adjusted β = -0.359; P= .01). Our findings suggest that high WCRF/AICR score before and during AT may provide greater stability of antioxidant capacity and protection against exacerbated oxidative stress.
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Affiliation(s)
- Jaqueline Schroeder
- Post Graduate Program in Nutrition, Health Sciences Center, Federal University of Santa Catarina, Florianopolis, 88040-370, SC, Brazil
| | - Luiza Kuhnen Reitz
- Post Graduate Program in Nutrition, Health Sciences Center, Federal University of Santa Catarina, Florianopolis, 88040-370, SC, Brazil
| | | | - Edson Luiz da Silva
- Post Graduate Program in Nutrition, Health Sciences Center, Federal University of Santa Catarina, Florianopolis, 88040-370, SC, Brazil; Department of Clinical Analyses, Health Sciences Center, Federal University of Santa Catarina, Florianopolis, 88010-790, SC, Brazil
| | - Patricia Faria Di Pietro
- Post Graduate Program in Nutrition, Health Sciences Center, Federal University of Santa Catarina, Florianopolis, 88040-370, SC, Brazil.
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Application of High-Performance Liquid Chromatography with Fluorescence Detection for Non-Polar Heterocyclic Aromatic Amines and Acridine Derivatives Determination in Pork Loin Roasted in a Roasting Bag. Foods 2022; 11:foods11213385. [DOI: 10.3390/foods11213385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/18/2022] [Accepted: 10/22/2022] [Indexed: 11/16/2022] Open
Abstract
Heat treatment of meat can lead to the formation of carcinogenic organic compounds. The influence of dried fruits on the formation of non-polar heterocyclic aromatic amines (carbolines) and nitrogen derivatives of polycyclic aromatic hydrocarbons (azaarenes) in roasted pork loin was elucidated. Two hundred grams of fruit per 1 kg of meat were used as stuffing. Carbolines, derivatives of pyridoimidazole and pyridoindole, and azaarenes (benzoacridines and dibenzoacridines) were determined by means of high-performance liquid chromatography with fluorescence detection. The total concentration of six δ-, γ- and α-carbolines in roasted pork loin was 1.3 ng/g. This content decreased by 64%, 58%, and 54% in pork loin stuffed with prunes, apricots, and cranberries, respectively. Concentrations of β-carbolines (harmane and norharmane) increased under the influence of added fruits. The norharmane content increased the most, from 2.2 ng/g in the control sample to 12.3 ng/g in meat prepared with cranberries. The harmane content increased from 1.0 ng/g to 3.6 ng/g in meat with prunes. The total concentration of azaarenes (two benzoacridines and dibenzo[a,c]acridine), which was close to 0.1 ng/g, decreased in dishes with prunes and apricots by 54% and 12%, respectively. Azaarenes were not found in samples of meat stuffed with cranberries.
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Guo H, Zhang T, Wang M, Sun L, Zhang J, Yang M, Yang F, Wu N, Yang W. Electrochemical behavior of MOF-801/MWCNT-COOH/AuNPs: A highly selective electrochemical sensor for determination of guanine and adenine. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127195] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Sub-chronic exposure to PhIP induces oxidative damage and DNA damage, and disrupts the amino acid metabolism in the colons of Wistar rats. Food Chem Toxicol 2021; 153:112249. [PMID: 33945839 DOI: 10.1016/j.fct.2021.112249] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 04/13/2021] [Accepted: 04/27/2021] [Indexed: 02/06/2023]
Abstract
Heterocyclic amines (HCAs) are a group of mutagenic compounds produced during thermal processing of protein-rich foods. One of the most abundant HCAs, 2-amino-1-methyl-6-phenylimidazo[4,5-b] pyridine (PhIP) has potential carcinogenic and mutagenic effects on human organs, especially the colon. This study aimed to explore the toxic effects of PhIP on amino acid metabolism in the colon of Wistar rats using RNA-seq and LC-MS/MS. Exposure to PhIP for 4 weeks induced oxidative damage and DNA damage in the colons, and disrupted the expression of related genes involved in tryptophan metabolism, beta(β)-alanine metabolism, valine, leucine, and isoleucine degradation, and glutathione metabolic pathways. Moreover, the levels of fecal metabolites related to amino acid metabolism were affected by PhIP. Cumulatively, these results indicate that PhIP can induce colonic oxidative injury and disorders related to amino acid metabolism, thereby providing a new theoretical basis for the study of PhIP toxicity.
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Pelland-St-Pierre L, Sernoskie SC, Verner MA, Ho V. Genotoxic effect of meat consumption: A mini review. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2021; 863-864:503311. [PMID: 33678247 DOI: 10.1016/j.mrgentox.2021.503311] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 11/25/2022]
Abstract
In 2015, the International Agency for Research on Cancer classified the consumption of processed meat as carcinogenic to humans (Group 1) and red meat as probably carcinogenic to humans (Group 2A) based on sufficient data from animal models and epidemiological studies. However, research characterising the mechanisms underlying this carcinogenic process in humans are limited, particularly with respect to measures of direct DNA damage. The current review sought to evaluate and summarize the recent literature, published since 2000, regarding the associations of meat consumption and three biomarkers of genotoxicity in humans: DNA strand breaks (measured using the comet assay), DNA adducts, and micronucleus formation. After screening 230 potential articles, 35 were included, and then were classified as experimental or observational in design, the latter of which were further categorized according to their dietary assessment approach. Among the 30 observational studies, 4 of which used two different assays, 3 of 5 comet assay studies, 13 of 20 DNA adduct studies, and 7 of 9 micronucleus studies reported a positive association between meat consumption and DNA damage. Among the 5 experimental studies, 1 of 1 using the comet assay, 3 of 3 measuring DNA adducts and 0 of 1 measuring micronuclei reported significant positive associations with meat consumption. Nevertheless, common limitations among the selected publications included small sample size, and poor methodological reporting of both exposure and outcome measures. Moreover, the vast majority of studies only measured DNA damage in one biological sample using a single assay and we cannot exclude the possibility of publication bias. Ultimately, our review of the literature, published since 2000, revealed a preponderance of studies that support mechanisms of genotoxicity in playing an important role in the meat-cancer association.
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Affiliation(s)
- Laura Pelland-St-Pierre
- Department of Social and Preventive Medicine, École de Santé Publique de l'Université de Montréal (ESPUM), Université de Montréal, Montréal, Québec, Canada; Health Innovation and Evaluation Hub, Université de Montréal Hospital Research Centre (CRCHUM), Montréal, Québec, Canada
| | - Samantha Christine Sernoskie
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada
| | - Marc-André Verner
- Centre de recherche en santé publique (CReSP), Université de Montréal, Montréal, Québec, Canada; Department of Occupational and Environmental Health, École de Santé Publique de l'Université de Montréal (ESPUM), Université de Montréal, Montréal, Québec, Canada
| | - Vikki Ho
- Department of Social and Preventive Medicine, École de Santé Publique de l'Université de Montréal (ESPUM), Université de Montréal, Montréal, Québec, Canada; Health Innovation and Evaluation Hub, Université de Montréal Hospital Research Centre (CRCHUM), Montréal, Québec, Canada.
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Emran MY, El-Safty SA, Selim MM, Shenashen MA. Selective monitoring of ultra-trace guanine and adenine from hydrolyzed DNA using boron-doped carbon electrode surfaces. SENSORS AND ACTUATORS B: CHEMICAL 2021; 329:129192. [DOI: 10.1016/j.snb.2020.129192] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Chen J, Zhou B, Li Y, Zheng L, Guo H, Yang F. A “turn-on” fluorescent sensor for cytosine in aqueous media based on diamino-bridged biphenyl acrylonitrile. NEW J CHEM 2021. [DOI: 10.1039/d0nj05098a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A “turn-on” fluorescent sensor for cytosine in aqueous media was prepared.
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Affiliation(s)
- Jiaojiao Chen
- College of Chemistry and Materials
- Fujian Normal University
- Fuzhou 350007
- P. R. China
- Fujian Key Laboratory of Polymer Materials
| | - Bangyi Zhou
- College of Chemistry and Materials
- Fujian Normal University
- Fuzhou 350007
- P. R. China
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering
| | - Yongsheng Li
- College of Chemistry and Materials
- Fujian Normal University
- Fuzhou 350007
- P. R. China
| | - Linlu Zheng
- Fujian Provincial Key Laboratory of Featured Biochemical and Chemical Materials
- Ningde Normal University
- Ningde 352106
- P. R. China
| | - Hongyu Guo
- College of Chemistry and Materials
- Fujian Normal University
- Fuzhou 350007
- P. R. China
- Fujian Key Laboratory of Polymer Materials
| | - Fafu Yang
- College of Chemistry and Materials
- Fujian Normal University
- Fuzhou 350007
- P. R. China
- Fujian Key Laboratory of Polymer Materials
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Carioca AAF, Steluti J, Carvalho AMD, Silva AM, Silva IDCGD, Fisberg RM, Marchioni DM. Plasma metabolomics are associated with metabolic syndrome: A targeted approach. Nutrition 2020; 83:111082. [PMID: 33360505 DOI: 10.1016/j.nut.2020.111082] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 10/19/2020] [Accepted: 11/05/2020] [Indexed: 12/15/2022]
Abstract
OBJECTIVES Advances in metabolomic tools have allowed us to gain a more comprehensive understanding of metabolic syndrome (MetS). The aim of this study was to evaluate the association between plasma metabolomic profiles and MetS. METHODS For this study, adults without diabetes, chronic kidney disease, stroke, heart disease, or cancer and with full metabolomics, biochemical, and dietetic data available, representing a subsample of the Health Survey of Sao Paulo study (ISA-Capital; N = 130), were included. The joint interim statement consensus criteria were used for diagnosing MetS. Absolute quantification (µmol/L) of blood metabolites was achieved by targeted quantitative profiling of annotated metabolites by electrospray ionization tandem mass spectrometry in plasma samples. Mean differences in the compounds for MetS were evaluated by linear regression adjusted for confounding factors. RESULTS Serine was inversely associated with MetS (β = -15.04; P = 0.014). In glycerophospholipids with acyl-alkyl bonds, there was an inverse association with MetS, including phosphatidylcholine (PC) ae C42:5 (β = -0.15; P = 0.040), PC ae C44:5 (β = -0.15; P = 0.046), PC ae C40:4 (β = -0.21; P = 0.014) and PC ae C44:4 (β = -0.04; P = 0.032). CONCLUSION Plasma metabolomic profiles were associated with MetS, especially the amino acid serine and some acyl-alkyl PCs.
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Affiliation(s)
- Antonio Augusto Ferreira Carioca
- Department of Nutrition, School of Public Health, University of Sao Paulo, SP, Brazil; University of Fortaleza (UNIFOR), Nutrition Course, Fortaleza, Brazil.
| | - Josiane Steluti
- Department of Nutrition, School of Public Health, University of Sao Paulo, SP, Brazil
| | | | | | | | - Regina Mara Fisberg
- Department of Nutrition, School of Public Health, University of Sao Paulo, SP, Brazil
| | - Dirce Maria Marchioni
- Department of Nutrition, School of Public Health, University of Sao Paulo, SP, Brazil
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Non-metal sensory electrode design and protocol of DNA-nucleobases in living cells exposed to oxidative stresses. Anal Chim Acta 2020; 1142:143-156. [PMID: 33280692 DOI: 10.1016/j.aca.2020.11.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/14/2020] [Accepted: 11/02/2020] [Indexed: 01/26/2023]
Abstract
Sensory protocols for evaluation of DNA distortion due to exposure to various harmful chemicals and environments in living cells are needed for research and clinical investigations. Here, a design of non-metal sensory (NMS) electrode was built by using boron-doped carbon spherules for detection of DNA nucleobases, namely, guanine (Gu), adenine (Ad), and thymine (Th) in living cells. The key-electrode based nanoscale NMS structures lead to voids with a facile diffusion, and strong binding events of the DNA nucleobases. Furthermore, the NMS geometric structures would significantly create electrode surfaces with numerous centrally active sites, curvature topographies, and anisotropic spherules. The NMS shows potential as sensitive protocol for DNA-nucleobases in living cells exposed to oxidative stresses. In one-step signaling assay, NMS shows high signaling transduction of Gu-, Ad-, and Th-DNA nucleobases targets with ultra-sensitive and low detection limits of 3.0, 0.36, and 0.34 nM, respectively, and a wide linear range of up to 1 μM. The NMS design and protocol show evidence of the role of surface construction features and B-atoms incorporated into the graphitic carbon network for creating abundant active sites with facile electron diffusion and heavily target loads along with within-/out-plane circular spheres. Indeed NMS, with spherule-rich interstitial surfaces can be used for sensitive and selective evaluation of damaged-DNA to various dysfunctional metabolism in the human body.
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Guo X, Zhang Y, Qian Y, Peng Z. Effects of Cooking Cycle Times of Marinating Juice and Reheating on the Formation of Cholesterol Oxidation Products and Heterocyclic Amines in Marinated Pig Hock. Foods 2020; 9:foods9081104. [PMID: 32806639 PMCID: PMC7466265 DOI: 10.3390/foods9081104] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 07/31/2020] [Accepted: 08/05/2020] [Indexed: 01/06/2023] Open
Abstract
In this work the effects of cooking cycle times of marinating juice and reheating on the formation of cholesterol oxidation products (COPs) and heterocyclic amines (HAs) in marinated pig hock were investigated. After the 12th cycle, the total content of COPs was 3.3, 2.0, and 2.0 times higher than that after the 1st cycle in the skin, subcutaneous fat, and lean meat, respectively. The total content of HAs was 5.8, 6.0, and 5.6 times higher than that after the 1st cycle in the skin, subcutaneous fat, and lean meat, respectively. Notably, more COPs were present in the lean meat than in the skin and subcutaneous fat, whereas the content of HAs in the skin was the highest. Compared with the unreheated samples, the total content of COPs and HAs in all tissues increased after reheating at 95 °C for 30 min or at 121 °C for 25 min, but no significant difference was found between different reheating conditions.
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Affiliation(s)
- Xiuyun Guo
- College of Food Science and Technology, Nanjing Agriculture University, Nanjing 210095, China; (X.G.); (Y.Q.); (Z.P.)
- Synergetic Innovation Center of Food Safety and Nutrition, Nanjing 210095, China
| | - Yawei Zhang
- College of Food Science and Technology, Nanjing Agriculture University, Nanjing 210095, China; (X.G.); (Y.Q.); (Z.P.)
- Synergetic Innovation Center of Food Safety and Nutrition, Nanjing 210095, China
- Correspondence:
| | - Ye Qian
- College of Food Science and Technology, Nanjing Agriculture University, Nanjing 210095, China; (X.G.); (Y.Q.); (Z.P.)
| | - Zengqi Peng
- College of Food Science and Technology, Nanjing Agriculture University, Nanjing 210095, China; (X.G.); (Y.Q.); (Z.P.)
- Synergetic Innovation Center of Food Safety and Nutrition, Nanjing 210095, China
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Higher ultra-processed food intake is associated with higher DNA damage in healthy adolescents. Br J Nutr 2020; 125:568-576. [DOI: 10.1017/s0007114520001981] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
AbstractUltra-processed food is one of the main contributors to energy supply and consumption in food systems worldwide, and evidence of their detrimental health outcomes in humans is emerging. This study aimed to assess ultra-processed food intake and its association with urinary levels of 8-hydroxy-2′-deoxyguanosine (8-OHdG), a biomarker of DNA oxidative damage, in 139 healthy adolescents in Karaj City in Iran. Usual dietary intake was measured using a 168-item validated FFQ. The daily intake of ultra-processed food consumption was determined through the classification of NOVA, and general linear models were used to compare the urinary levels of 8-OHdG/creatinine (ng/mg creatinine) within tertiles of ultra-processed food intake. Adolescents in the higher tertile of ultra-processed food consumption had a significantly higher mean level of urinary 8-OHdG/creatinine in comparison with the lower tertiles in the crude model (Pfor trend: 0·003) and after adjustment for confounding variables, including total energy intake, sex, age, BMI for age Z-score, obesity and physical activity (Pfor trend: 0·004). This association was still significant after adjusting for dietary intake of whole grains, nuts, legumes, the ratio of MUFA:SFA (g/d) and Mediterranean dietary score (Pfor trend: 0·002). More studies are needed to explore the determinants of ultra-processed food supply, demand, consumption and health effects; such studies should be applied to develop evidence-informed policies and regulatory mechanisms to improve children’s and adolescents’ food environment policymaking and legislation with special attention to ultra-processed food.
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Hydroethanolic Extract of Solanum paniculatum L. Fruits Modulates ROS and Cytokine in Human Cell Lines. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:7240216. [PMID: 32411334 PMCID: PMC7204104 DOI: 10.1155/2020/7240216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 11/20/2019] [Accepted: 12/07/2019] [Indexed: 11/21/2022]
Abstract
Solanum paniculatum L. or popularly known as “jurubeba” is an herbal medicinal plant. A few studies have investigated its biological effects; however, research aimed at elucidating the redox balance effects from its fruits has not been reported so far. ROS interplays in various fields of medicine such as chemotherapy. Here, we evaluated antioxidant and inflammatory activities of the hydroethanolic extract of Solanum Paniculatum L. (HESPL) fruits in breast cancer cells, as well as its phytochemical profile. The antioxidant profile (carotenoids and phenolic compounds) was obtained by HPLC-DAD-UV and HPLC-APCI-MS. Cancer cell lines and human vein endothelial cells (HUVECs) were cultivated and treated with 1.87-30 μg/mL of HESPL for 24 hrs. Cytotoxicity, oxidative, and inflammation biomarkers were evaluated. The dose of 30 μg/mL of the HESPL extract presented cytotoxicity in the MCF-7 cell line. However, for MDA-MB-231, the cytotoxicity was observed in the dose of 1.87 g/mL. The 1.87 μg/mL and 3.75 μg/mL doses decreased the concentration of IL-6 in MCF-7 cells. In the MDA-MB-231 cells, the HESPL did not decrease the IL-6 concentration; however, in the doses of 15 and 30 μg/mL, an increase in this parameter was observed. The HESPL increased IL-1β concentration in HUVECs. The ROS level in MCF-7 was elevated only at the 30 μg/ml dose. Regarding MDA-MB-231, HESPL promoted increased ROS levels at all doses tested. HUVEC showed no increase in ROS under any dose. HESPL treatment may modulate cytotoxicity, ROS, and cytokine levels due to its phytochemical profile, and it has shown an antioxidant or anti-inflammatory effect.
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Zhang Y, Wu WJ, Zhou WE, Ren ZQ, Feng XS, Zhang F. Determination of 14 heterocyclic aromatic amines in meat products using solid-phase extraction and supercritical fluid chromatography coupled to triple quadrupole mass spectrometry. J Sep Sci 2020; 43:1372-1381. [PMID: 31944578 DOI: 10.1002/jssc.201900816] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 12/19/2019] [Accepted: 12/30/2019] [Indexed: 11/12/2022]
Abstract
A novel, simple, and sensitive method has been developed for simultaneous determination of 14 heterocyclic aromatic amines in meat product using solid-phase extraction combined with ultrahigh-performance supercritical fluid chromatography coupled to tandem quadrupole mass spectrometry. The analytes could be separated within 7 min and identified using their retention times and mass. The developed method was validated based on the linearity, limits of quantification, precision, and accuracy. The recovery ranged from 52.3 to 97.5% with an acceptable standard deviation, which is not higher than 6%. The limits of quantitation ranged from 0.03 to 0.17 µg/kg. The selectivity and sensitivity were satisfactory in multiple reaction monitoring mode. The method was applied to commercial meat products, and the results demonstrated that the novel method has potential for the analysis of the targets in food matrices. This is the first work reporting the simultaneous quantification of 14 heterocyclic aromatic amines by means of ultrahigh-performance supercritical fluid chromatography coupled to tandem quadrupole mass spectrometry.
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Affiliation(s)
- Yuan Zhang
- Institute of Food Safety, Chinese Academy of Inspection & Quarantine, Beijing, P.R. China.,Department of Pharmacy, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P.R. China
| | - Wen-Jie Wu
- Institute of Food Safety, Chinese Academy of Inspection & Quarantine, Beijing, P.R. China.,School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, P.R. China
| | - Wei-E Zhou
- Institute of Food Safety, Chinese Academy of Inspection & Quarantine, Beijing, P.R. China
| | - Zhi-Qin Ren
- Institute of Food Safety, Chinese Academy of Inspection & Quarantine, Beijing, P.R. China
| | - Xue-Song Feng
- School of Pharmacy, China Medical University, Shenyang, P.R. China
| | - Feng Zhang
- Institute of Food Safety, Chinese Academy of Inspection & Quarantine, Beijing, P.R. China
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16
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Ma B, Stepanov I, Hecht SS. Recent Studies on DNA Adducts Resulting from Human Exposure to Tobacco Smoke. TOXICS 2019; 7:E16. [PMID: 30893918 PMCID: PMC6468371 DOI: 10.3390/toxics7010016] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 03/09/2019] [Accepted: 03/13/2019] [Indexed: 12/22/2022]
Abstract
DNA adducts are believed to play a central role in the induction of cancer in cigarette smokers and are proposed as being potential biomarkers of cancer risk. We have summarized research conducted since 2012 on DNA adduct formation in smokers. A variety of DNA adducts derived from various classes of carcinogens, including aromatic amines, polycyclic aromatic hydrocarbons, tobacco-specific nitrosamines, alkylating agents, aldehydes, volatile carcinogens, as well as oxidative damage have been reported. The results are discussed with particular attention to the analytical methods used in those studies. Mass spectrometry-based methods that have higher selectivity and specificity compared to 32P-postlabeling or immunochemical approaches are preferred. Multiple DNA adducts specific to tobacco constituents have also been characterized for the first time in vitro or detected in vivo since 2012, and descriptions of those adducts are included. We also discuss common issues related to measuring DNA adducts in humans, including the development and validation of analytical methods and prevention of artifact formation.
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Affiliation(s)
- Bin Ma
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA.
| | - Irina Stepanov
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA.
| | - Stephen S Hecht
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA.
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17
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Bi J, Ji X, Guo M, Guo H, Yang F. A fluorescent sensor for thymine based on bis-BODIPY containing butanediamido bridges. NEW J CHEM 2019. [DOI: 10.1039/c9nj00406h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A fluorescent sensor for thymine based on bis-BODIPY containing butanediamido bridges was prepared and applied in the sensitive detection of thymine in living cell imaging.
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Affiliation(s)
- Jiahui Bi
- College of Chemistry and Materials
- Fujian Normal University
- Fuzhou 350007
- P. R. China
| | - Xiaoyu Ji
- College of Chemistry and Materials
- Fujian Normal University
- Fuzhou 350007
- P. R. China
| | - Meiyan Guo
- College of Chemistry and Materials
- Fujian Normal University
- Fuzhou 350007
- P. R. China
| | - Hongyu Guo
- College of Chemistry and Materials
- Fujian Normal University
- Fuzhou 350007
- P. R. China
- Fujian Key Laboratory of Polymer Materials
| | - Fafu Yang
- College of Chemistry and Materials
- Fujian Normal University
- Fuzhou 350007
- P. R. China
- Fujian Key Laboratory of Polymer Materials
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18
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Kashino I, Li YS, Kawai K, Nanri A, Miki T, Akter S, Kobayashi S, Kasai H, Mizoue T. Dietary non-enzymatic antioxidant capacity and DNA damage in a working population. Nutrition 2018; 47:63-68. [DOI: 10.1016/j.nut.2017.10.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 09/21/2017] [Accepted: 10/05/2017] [Indexed: 12/31/2022]
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19
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Ng KL, Khor SM. Graphite-Based Nanocomposite Electrochemical Sensor for Multiplex Detection of Adenine, Guanine, Thymine, and Cytosine: A Biomedical Prospect for Studying DNA Damage. Anal Chem 2017; 89:10004-10012. [PMID: 28845664 DOI: 10.1021/acs.analchem.7b02432] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Guanine (G), adenine (A), thymine (T), and cytosine (C) are the four basic constituents of DNA. Studies on DNA composition have focused especially on DNA damage and genotoxicity. However, the development of a rapid, simple, and multiplex method for the simultaneous measurement of the four DNA bases remains a challenge. In this study, we describe a graphite-based nanocomposite electrode (Au-rGO/MWCNT/graphite) that uses a simple electro-co-deposition approach. We successfully applied the developed sensor for multiplex detection of G, A, T, and C, using square-wave voltammetry. The sensor was tested using real animal and plant DNA samples in which the hydrolysis of T and C could be achieved with 8 mol L-1 of acid. The electrochemical sensor exhibited excellent sensitivity (G = 178.8 nA/μg mL-1, A = 92.9 nA/μg mL-1, T = 1.4 nA/μg mL-1, and C = 15.1 9 nA/μg mL-1), low limit of detection (G, A = 0.5 μg mL-1; T, C = 1.0 μg mL-1), and high selectivity in the presence of common interfering factors from biological matrixes. The reliability of the established method was assessed by method validation and comparison with the ultraperformance liquid chromatography technique, and a correlation of 103.7% was achieved.
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Affiliation(s)
- Khan Loon Ng
- Department of Chemistry, Faculty of Science, University of Malaya , 50603 Kuala Lumpur, Malaysia.,Wipro Skin Research and Innovation Centre , No. 7 Persiaran Subang Permai, Taman Perindustrian Subang, 47610 Selangor, Malaysia
| | - Sook Mei Khor
- Department of Chemistry, Faculty of Science, University of Malaya , 50603 Kuala Lumpur, Malaysia.,University of Malaya Centre for Ionic Liquids (UMCiL), University of Malaya , 50603 Kuala Lumpur, Malaysia
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