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Estradiol and Hyperhomocysteinemia Are Linked Predominantly Through Part Renal Function Indicators
Xiao Na Niu1, He Wen2, Nan Sun2
1First Affiliated Hospital of Hunan Normal University, Hunan Provincial People's Hospital, Changsha, China.
Estradiol (E2) protects against hyperhomocysteinemia (HHcy) in women. This effect is partly mediated by kidney function indicators like uric acid (UA) and glomerular filtration rate (GFR).
Area of Science:
- Endocrinology
- Nephrology
- Cardiovascular Health
Background:
- Estrogen, kidney function, and homocysteine (Hcy) are interconnected, but mechanisms are unclear.
- Hyperhomocysteinemia (HHcy) is linked to cardiovascular and kidney diseases.
- Estradiol (E2) levels decline with age, potentially impacting HHcy risk.
Purpose of the Study:
- To investigate the association between estradiol (E2) and hyperhomocysteinemia (HHcy) in women.
- To determine the mediating role of renal function indicators in the E2-HHcy relationship.
Main Methods:
- Unmatched case-control study of 1,044 female participants (mean age 60.60 ± 12.46 years).
- Data collected via personal interviews and laboratory examinations.
- Mediating effect model used to analyze direct and indirect effects of E2 on Hcy.
Main Results:
- Significant differences in blood urea nitrogen (BUN), serum creatinine (Scr), uric acid (UA), glomerular filtration rate (GFR), and E2 between HHcy and non-HHcy groups.
- Logistic regression revealed UA as a risk factor and GFR and E2 as protective factors for HHcy.
- Indirect effects of E2 on Hcy via UA and GFR were 14.63% and 18.29%, respectively.
Conclusions:
- Estradiol (E2) acts as a protective factor against hyperhomocysteinemia (HHcy) in women.
- Renal function indicators, specifically uric acid (UA) and glomerular filtration rate (GFR), mediate the protective effects of E2 on HHcy.
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