Search

Postmenopausal osteoporosis (PMOP) is a chronic bone metabolic disease, which often causes fractures and various complications, it causes a great social and economic burden, and it is urgent to use modern research techniques to elucidate the pathogenesis of PMOP. At the same time, because of the complex physiological and pathological interaction mechanism between osteoporosis and sarcopenia, the correlation research has become a hot topic. Ovary removal is a commonly used experimental method to study the endocrine system of female animals, and it is also the best animal model to study PMOP. In this study, the preparation of the ovariectomized rat was confirmed through the detection of vaginal smear, the level of bone formation markers, and the analysis of bone tissue morphology. Transcriptome sequencing was used to analyze the molecular mechanism of PMOP in ovariectomized rats, qRT-PCR was used to verify the key targets. Results of Micro-CT and scanning electron microscopy (SEM) showed that the trabecular structure was disorganized and the symptoms of osteoporosis appeared, this indicating that the ovariectomized rats model was successfully prepared. Transcriptional sequencing results of femur tissue showed that 452 differentially expressed genes (DEGs) were screened. Bioinformatics analysis results showed that the osteoporosis caused by ovariectomized rats was mainly related to muscle contraction, calcium signaling pathway, etc. Results of qRT-PCR were consistent with transcriptome analysis. These results reveal the pathogenesis of PMOP in ovariectomized rats and also offer a possibility for elucidating the relevance of action between PMOP and sarcopenia. [ABSTRACT FROM AUTHOR]

ABSTRACT The clinical research findings on the effects of okra consumption on blood glucose and lipids are inconsistent. In this study, we aimed to explore the impact of okra consumption on glycemic parameters and lipid profile in adults, including homeostatic model assessment for insulin resistance (HOMA‐IR), glycosylated hemoglobin A1c (HbA1c), fasting blood glucose (FBG), triglyceride (TG), total cholesterol (TC), low‐density lipoprotein cholesterol (LDL‐C), and high‐density lipoprotein cholesterol (HDL‐C). To find relevant randomized controlled trials (RCTs), we systemically searched EMBASE, Web of Science, PubMed, Cochrane Library, and Scopus until April 2024. According to the inclusion and exclusion criteria, eight studies involving 521 participants were ultimately included in the present study. Compared to placebo, okra consumption remarkably decreased FBG (WMD: −32.56 mg/dL; 95% CI: −48.83, −16.28; p < 0.001; I2 = 84.7%), HbA1c (WMD: −0.48%; 95% CI: −0.81, −0.16; p = 0.004; I2 = 5.5%), TG (WMD: −13.16 mg/dL; 95% CI: −23.54, −2.77; p = 0.013; I2 = 0.0%), and TC (WMD: −9.70 mg/dL; 95% CI: −14.95, −4.46; p < 0.001; I2 = 38.3%) in adults. However, okra showed no notable impact on HOMA‐IR, HDL‐C, and LDL‐C. Okra consumption has an improving effect on adult FBG, HbA1c, TG, and TC levels. More large‐scale RCT studies are necessary to validate the beneficial effects of okra on adults due to the limited number of included RCTs.Trial Registration: PROSPERO: CRD42024540121 [ABSTRACT FROM AUTHOR]