期刊
NUTRIENTS
卷 13, 期 1, 页码 -出版社
MDPI
DOI: 10.3390/nu13010217
关键词
serum iron; hepcidin; ferritin; BMI; inflammation
资金
- Doris A. Adams endowment funds at Iowa State University
Limited evidence suggests dysregulation of serum iron and hepcidin concentrations in obesity and inflammation. This study compared inflammatory markers, serum lipids, and iron status between obese and normal-weight women. Obese women showed higher levels of inflammation, triglycerides, and hepcidin, but lower HDL and serum iron/hepcidin ratio compared to normal-weight women. BMI correlated positively with inflammatory markers, triglycerides, and total cholesterol/HDL ratio, and negatively with HDL and serum iron/hepcidin ratio.
Limited evidence suggests that serum iron and hepcidin concentrations are dysregulated in obesity and inflammation. The objective of the present study was to compare C-reactive protein, interleukin-6, circulating levels of hepcidin, serum lipids, and iron status in obese vs. normal-weight women of childbearing age. Healthy women aged 18-30 years were recruited for the study (n = 47: 25 obese and 22 normal weight). Fasting blood samples were obtained to measure serum lipids (total cholesterol, HDL, LDL cholesterol, triglycerides, non-HDL cholesterol), complete blood count, serum iron, total iron-binding capacity, transferrin saturation, serum ferritin, hepcidin, C-reactive protein, and interleukin-6. Obese women had significantly higher mean serum C-reactive protein (p < 0.001), interleukin-6 (p < 0.001), hepcidin (p = 0.024), triglycerides (p < 0.001) and total cholesterol/HDL ratio (p < 0.001) but lower HDL (p = 0.001) and serum iron/hepcidin ratio (p = 0.011) compared with normal-weight women. BMI correlated positively with inflammatory markers, triglycerides, LDL and total cholesterol/HDL ratio, and negatively with HDL and serum iron/hepcidin ratio. Serum iron correlated negatively with ferritin in the obese group (p = 0.030) but positively in normal weight women (p = 0.002). BMI and ferritin were the only predictors of serum iron/hepcidin ratio accounting for 23% of the variation among subjects. Studies are needed to examine anti-inflammatory dietary approaches that can improve iron biomarkers in obese women.
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