Arthritis and rheumatism · 2006
Estradiol and its metabolites and their association with knee osteoarthritis.
СтатьяПоддержка NIH: внешняя программаПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Sowers MaryFran R, McConnell Daniel, Jannausch Mary, Buyuktur Ayse G, Hochberg Marc, Jamadar David A
Аннотация
OBJECTIVE: To determine if levels of endogenous estrogen or estrogen metabolites are associated with an increased risk of developing knee osteoarthritis (OA) in women.
METHODS: Serum estradiol (E2) and 2 urinary estrogen metabolites (2-hydroxyestrone and 16alpha-hydroxyestrone) with radiographically defined prevalent and incident knee OA in 842 white and African American women from the Southeast Michigan Arthritis Cohort.
RESULTS: The mean age and body mass index (BMI) of women in the cohort were 42.3 years and 28.5 kg/m2, respectively. Women who developed radiographically defined knee OA had significantly greater odds of having baseline endogenous early follicular phase estradiol concentrations in the lowest tertile (<47 pg/ml; odds ratio [OR] 1.88, 95% confidence interval [95% CI] 1.07-3.51) compared with those with estradiol concentrations in the middle tertile [47-77 pg/ml]), after adjustment for age, BMI, and other covariates. Women who developed knee OA also had greater odds of having baseline urinary concentrations of 2-hydroxyestrone in the lowest tertile (OR 2.9, 95% CI 1.49-5.68) compared with women with 2-hydroxyestrone concentrations in the middle tertile), after adjustment for covariates. Women who developed knee OA were more likely to have a ratio of 16alpha-hydroxyestrone to 2-hydroxyestrone in the highest tertile (>0.86; OR 1.86, 95% CI 1.01-3.44 compared with women with ratios in the 0.54-0.86 range), after adjustment for other covariates.
CONCLUSION: There were significant associations of lower baseline serum estradiol and urinary 2-hydroxyestrone with developing knee OA in middle-aged women.
METHODS: Serum estradiol (E2) and 2 urinary estrogen metabolites (2-hydroxyestrone and 16alpha-hydroxyestrone) with radiographically defined prevalent and incident knee OA in 842 white and African American women from the Southeast Michigan Arthritis Cohort.
RESULTS: The mean age and body mass index (BMI) of women in the cohort were 42.3 years and 28.5 kg/m2, respectively. Women who developed radiographically defined knee OA had significantly greater odds of having baseline endogenous early follicular phase estradiol concentrations in the lowest tertile (<47 pg/ml; odds ratio [OR] 1.88, 95% confidence interval [95% CI] 1.07-3.51) compared with those with estradiol concentrations in the middle tertile [47-77 pg/ml]), after adjustment for age, BMI, and other covariates. Women who developed knee OA also had greater odds of having baseline urinary concentrations of 2-hydroxyestrone in the lowest tertile (OR 2.9, 95% CI 1.49-5.68) compared with women with 2-hydroxyestrone concentrations in the middle tertile), after adjustment for covariates. Women who developed knee OA were more likely to have a ratio of 16alpha-hydroxyestrone to 2-hydroxyestrone in the highest tertile (>0.86; OR 1.86, 95% CI 1.01-3.44 compared with women with ratios in the 0.54-0.86 range), after adjustment for other covariates.
CONCLUSION: There were significant associations of lower baseline serum estradiol and urinary 2-hydroxyestrone with developing knee OA in middle-aged women.