title: Oxidative stress, oxidative balance score, and hypertension among a racially diverse population.
abstract: Hypertension is a risk factor for several vascular diseases. Evidence suggests that oxidative stress (OS) plays a significant role in its pathophysiology. Human studies have shown inconsistent results, varying based on the OS biomarker and study population. In a racially diverse population, examine the association between: (1) blood pressure or hypertension and four markers of OS and (2) blood pressure or hypertension and oxidative balance score (OBS). Using data (n = 317) from the cross-sectional study on race, stress, and hypertension, an OBS was constructed from various measures of pro-oxidant and antioxidant exposures. OS was assessed by four biomarkers: fluorescence oxidative products, F2-isoprostanes, mitochondrial DNA copy number, and gamma tocopherol. Multivariate linear and logistic regression analyses were used to estimate the associations of interest. None of the adjusted associations between hypertension and OS markers was statistically significant. OBS was inversely associated with hypertension after adjusting for study covariates. Persons with higher OBS have lower odds of having hypertension; however, the evidence on the relationship between OS markers and blood pressure remains unconvincing.
authors.affiliation: School of Public Health, Division of Epidemiology and Biostatistics, Georgia State University, Atlanta, GA, USA. Electronic address: fannor1@gmail.com.
authors.forename: Francis B
authors.initials: FB
authors.lastname: Annor
authors.affiliation: Department of Epidemiology, Emory University, Atlanta, GA, USA.
authors.forename: Michael
authors.initials: M
authors.lastname: Goodman
authors.affiliation: School of Public Health, Division of Epidemiology and Biostatistics, Georgia State University, Atlanta, GA, USA.
authors.forename: Ike S
authors.initials: IS
authors.lastname: Okosun
authors.affiliation: School of Public Health, Division of Epidemiology and Biostatistics, Georgia State University, Atlanta, GA, USA; Center for Health Research, Kaiser Permanente Georgia, Atlanta, GA, USA.
authors.forename: Douglas W
authors.initials: DW
authors.lastname: Wilmot
authors.affiliation: School of Public Health, Division of Epidemiology and Biostatistics, Georgia State University, Atlanta, GA, USA.
authors.forename: Dora
authors.initials: D
authors.lastname: Il'yasova
authors.affiliation: College of Health Sciences, Appalachian State University, Boone, NC, USA.
authors.forename: Murugi
authors.initials: M
authors.lastname: Ndirangu
authors.affiliation: Department of Biostatistics, University of Alabama at Birmingham, Birmingham, AL, USA.
authors.forename: Sindhu
authors.initials: S
authors.lastname: Lakkur
mesh_terms: D000328:Adult; D000368:Aged; D000975:Antioxidants / Q000378:metabolism*; D015415:Biomarkers / Q000097:blood; D001794:Blood Pressure / Q000502:physiology*; D003430:Cross-Sectional Studies; D005240:Feasibility Studies; D005260:Female; D005500:Follow-Up Studies; D008401:Gas Chromatography-Mass Spectrometry; D005845:Georgia / Q000453:epidemiology; D006801:Humans; D006973:Hypertension / Q000097:blood* / Q000208:ethnology / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D018384:Oxidative Stress / Q000502:physiology*; D015995:Prevalence; D044469:Racial Groups; D017382:Reactive Oxygen Species / Q000097:blood*; D012307:Risk Factors
chemical_list: D000975:Antioxidants; D015415:Biomarkers; D017382:Reactive Oxygen Species
keywords: Antioxidants; blood pressure