AUTHOR=Zhou Junteng , Li Ruicen , Bao Ting , Jiang Wei , Huang Yan 

TITLE=Association between serum 25-hydroxyvitamin d and myeloperoxidase: A cross-sectional study of a general population in China

JOURNAL=Frontiers in Nutrition

VOLUME=Volume 9 - 2022

YEAR=2022

URL=https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2022.948691

DOI=10.3389/fnut.2022.948691

ISSN=2296-861X

ABSTRACT=Background:
Several studies have found a strong association between cardiovascular diseases and myeloperoxidase (MPO) as a marker of oxidative stress. Although the anti-inflammatory effects of vitamin D in adults have been validated, evidence about the relationship between MPO and 25(OH)D is lacking. This study aimed to investigate the relationship between MPO and 25(OH)D in the general Chinese population.
Methods:
From November 2018 to August 2019, a total of 6414 subjects were enrolled in a tertiary referral hospital in China, which included 3122 women and 3292 men. The independent and dependent variables were MPO and 25(OH)D, respectively. The confounders included age, sex, body mass index, waist-hip ratio, smoking status, alcohol drinking status, calcium and parathyroid hormone concentration.
Results:
In the fully adjusted model, we found that MPO decreased by 0.12 (95% CI -0.16, -0.08), ng/mL for each unit (1 nmol/L) increase in 25(OH)D. When 25(OH) D was divided into quartiles, compared with Q1 (<41.4 nmol/L), the adjusted beta coefficients (β) of MPO in Q2-Q4 were -2.29 (95% CI, -4.31 to -0.27), -4.76 (95% CI, -6.83 to -2.69), and -6.07 (95% CI, -8.23 to -3.92), respectively (P for the trend <0.0001). When 25(OH) D was divided according to clinical severity, compared with the severely deficient (<30 nmol/L) group, the adjusted beta coefficients (β) of MPO in the insufficient (>=30, <50 nmol/L) and sufficient groups (>=50 nmol/L) were -2.59 (95% CI, -5.87 to 0.69) and -5.87 (95% CI, -9.17 to -2.57), respectively (P for the trend <0.0001).
Conclusions:
After adjusting for age, sex, BMI, waist-hip ratio, smoking status, alcohol status, calcium and PTH, circulating 25(OH)D was negatively associated with MPO.