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To explore the relationship between dietary antioxidant quality score (DAQS) and cadmium (Cd) exposure-both alone, and in combination-with osteoporosis and bone mineral density (BMD) among postmenopausal women. 4,920 postmenopausal women from National Health and Nutrition Examination Survey were included in this cross-sectional study. Weighted univariate and multivariate logistic regression analyses to assess the association between DAQS and Cd exposure with femur neck BMD, total femur BMD, osteoporosis among postmenopausal women, respectively, and the coexistence effect of DAQS and Cd exposure. 499 had osteoporosis. DAQS [Odds ratio (OR)=0.86, 95% confidence interval (CI): 0.77, 0.97] and high DAQS (OR=0.60, 95%CI: 0.36, 0.99) were found to be associated with decreased odds of osteoporosis, while Cd exposure (OR=1.34, 95%CI: 1.04, 1.72) and high Cd exposure (OR=1.45, 95%CI: 1.02, 2.06) were related to increased odds of osteoporosis. A positive correlation was observed between high DAQS and both total femur BMD and femur neck BMD. Conversely, Cd exposure was found to be negatively correlated with total femur BMD and femur neck BMD. Additionally, taking low-Cd and high quality DAQS group as reference, the joint effect of Cd exposure and DAQS showed greater increased odds of osteoporosis, decreased total femur BMD and femur neck BMD as Cd level and DAQS combinations worsened. There may be an interaction between Cd exposure and DAQS for femur neck BMD, total femur BMD, osteoporosis in postmenopausal women.
To explore the relationship between dietary antioxidant quality score (DAQS) and cadmium (Cd) exposure-both alone, and in combination-with osteoporosis and bone mineral density (BMD) among postmenopausal women. 4,920 postmenopausal women from National Health and Nutrition Examination Survey were included in this cross-sectional study. Weighted univariate and multivariate logistic regression analyses to assess the association between DAQS and Cd exposure with femur neck BMD, total femur BMD, osteoporosis among postmenopausal women, respectively, and the coexistence effect of DAQS and Cd exposure. 499 had osteoporosis. DAQS [Odds ratio (OR)=0.86, 95% confidence interval (CI): 0.77, 0.97] and high DAQS (OR=0.60, 95%CI: 0.36, 0.99) were found to be associated with decreased odds of osteoporosis, while Cd exposure (OR=1.34, 95%CI: 1.04, 1.72) and high Cd exposure (OR=1.45, 95%CI: 1.02, 2.06) were related to increased odds of osteoporosis. A positive correlation was observed between high DAQS and both total femur BMD and femur neck BMD. Conversely, Cd exposure was found to be negatively correlated with total femur BMD and femur neck BMD. Additionally, taking low-Cd and high quality DAQS group as reference, the joint effect of Cd exposure and DAQS showed greater increased odds of osteoporosis, decreased total femur BMD and femur neck BMD as Cd level and DAQS combinations worsened. There may be an interaction between Cd exposure and DAQS for femur neck BMD, total femur BMD, osteoporosis in postmenopausal women.
BackgroundIncreased oxidative stress due to aging can lead to increased bone loss. The most abundant form of vitamin E, namely α-tocopherol, has high antioxidant properties and biological activity; however, its effect on osteoporosis has not been well studied in humans. We aimed to investigate the association between dietary vitamin E (α-tocopherol) and osteoporosis among older adults in the United States.MethodsThis cross-sectional study analyzed data on older adults in the United States aged ≥50 years from the 2007–2010, 2013–2014 and 2017–2020 pre-pandemic cycles of the National Health and Nutrition Examination Survey. Sample-weighted multivariate regression models were used, with adjustments for relevant confounders.ResultsThis study comprised 5,800 individuals with available data on dietary intake and bone mineral density of hip and spine. The mean participant age was 61.4 (standard deviation, 8.7) years, and approximately 9.9% had osteoporosis. High vitamin E intake was significantly associated with a reduced risk of osteoporosis (odds ratio, 0.96, 95% confidence interval, 0.93–0.98). In addition, there was evidence of interaction between dietary vitamin E and prior fracture on preventing osteoporosis.ConclusionsOur study indicated a linear association between dietary vitamin E levels and osteoporosis in an older population in the United States. Further research is required to explore the potential effects of different forms of vitamin E on osteoporosis.
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