Insights & Discussion
The primary ingredient of Shenling Baizhu powder, Rutin, can improve polycystic ovary syndrome and postmenopausal osteoporosis by binding to the aromatic hydrocarbon receptor, thus inhibiting cell apoptosis.
In this study, the active ingredients of Shenling Baizhu powder were identified using a Chinese medicine database, and Rutin emerged as having the highest binding affinity to the aromatic hydrocarbon receptor. This was determined through molecular dynamics simulation, eliminating any ambiguity. Then, to assess the efficacy of Rutin, it was used therapeutically on ovarian granulosa and osteoblast cell lines, with varying concentrations to determine the optimum dosage.
Analyzing the results showed that the introduction of Rutin to both ovarian granulosa and osteoblast cell lines resulted in modified protein expressions, indicative of cellular adjustments. Specifically, expressions of the apoptosis-associated protein and the aromatic hydrocarbon receptor, among others, were decreased while the expression of protein Bcl-2 was increased. Moreover, cell proliferation was seen to significantly accelerate in both cell lines after treatment with Rutin.
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Blueberry consumption can prevent bone loss and positively impact bone metabolism in ovariectomized rats.
2008 The Journal of Nutritional Biochemistry Blueberry prevents bone loss in ovariectomized rat model of postmenopausal osteoporosis Devareddy L, Hooshmand S, Collins JK, Lucas EA, Chai SC, Arjmandi BH
Experimental Study Blueberry Osteoporosis Postmenopausal
The research involved thirty 6-month-old female Sprague-Dawley rats. Some rats were ovariectomized to simulate post-menopausal conditions and then divided into three groups: Sham-operated, control (ovariectomized but no intervention), and a group that was ovariectomized and given a 5% blueberry diet. After being on this diet for 100 days, the effects of the blueberries on bone health were evaluated through the assessment of Bone Mineral Density (BMD) and content in the whole body, right tibia, right femur, and fourth lumbar vertebra through dual-energy X-ray absorptiometry.
In terms of the results, the ovariectomy caused a loss of BMD in the whole body, tibia, femora, and lumbar region, whereas the blueberry diet prevented this loss in the whole body. It also somewhat reduced the loss in the tibia and femur. The bone-protective effects of the blueberries were attributed to them suppressing the ovariectomy-induced increase in bone turnover. This was shown by reduced levels of various cellular components linked to bone metabolism in the femoral bone and serum of rats on the blueberry diet, compared to the ovariectomized control group.