The Effect of Genistein Supplementation on Vitamin D Levels and Bone Turnover Markers during the Summer in Healthy Postmenopausal Women: Role of Genotypes of Isoflavone Metabolism

2017 ◽  
Vol 10 (5-6) ◽  
pp. 139-145 ◽  
Author(s):  
María Pérez-Alonso ◽  
Laisa-Socorro Briongos ◽  
Marta Ruiz-Mambrilla ◽  
Eladio A. Velasco ◽  
Lidia Linares ◽  
...  
Keyword(s):  
Vitamin D ◽  
Bone Turnover ◽  
Postmenopausal Women ◽  
Bone Turnover Markers ◽  
Vitamin D Levels ◽  
Turnover Markers ◽  
Isoflavone Metabolism

scholarly journals Serumβ-Catenin Levels Associated with the Ratio of RANKL/OPG in Patients with Postmenopausal Osteoporosis

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Xiao-Juan Xu ◽  
Lin Shen ◽  
Yan-Ping Yang ◽  
Rui Zhu ◽  
Bo Shuai ◽  
...  
Keyword(s):  
Bone Turnover ◽  
Postmenopausal Women ◽  
Postmenopausal Osteoporosis ◽  
Bone Turnover Markers ◽  
Enzyme Linked Immunosorbent Assay ◽  
Functional Communication ◽  
Mineral Density ◽  
Wnt Pathways ◽  
Turnover Markers

Objective. To demonstrate the role of Wnt/β-catenin canonical pathway in postmenopausal osteoporosis by evaluating serumβ-catenin levels in patients with postmenopausal osteoporosis and analyzing their possible relationship with serum OPG, RANKL, the ratio of RANKL/OPG, sclerostin, and bone turnover markers.Methods. 480 patients with postmenopausal osteoporosis and 170 healthy postmenopausal women were enrolled in the study. Serumβ-catenin, OPG, RANKL, and sclerostin levels were measured by enzyme-linked immunosorbent assay. Bone status was assessed by measuring bone mineral density and bone turnover markers. Estradiol levels were also detected.Results. Serumβ-catenin levels were lower in postmenopausal osteoporotic women compared to nonosteoporotic postmenopausal women (26.26±14.81versus39.33±5.47 pg/mL,P<0.001). Serumβ-catenin was positively correlated with osteoprotegerin (r=0.232,P<0.001) and negatively correlated with the ratio of RANKL/OPG, body mass index, and sclerostin (r=-0.128,P=0.005;r=-0.117,P=0.010;r=-0.400,P<0.001, resp.) in patients with postmenopausal osteoporosis.Conclusion. The results indicate that lower serumβ-catenin and concomitantly higher ratio of RANKL/OPG may be involved in the pathogenesis of postmenopausal osteoporosis. Functional communication between RANKL/RANK/OPG system and Wnt pathways plays an important role in postmenopausal osteoporosis.

scholarly journals Obesity and Bone Loss at Menopause: The Role of Sclerostin

Diagnostics ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1914
Author(s):  
Paolo Marzullo ◽  
Chiara Mele ◽  
Stefania Mai ◽  
Antonio Nardone ◽  
Massimo Scacchi ◽  
...  
Keyword(s):  
Body Composition ◽  
Lumbar Spine ◽  
Femoral Neck ◽  
Bone Turnover ◽  
Postmenopausal Women ◽  
Bone Health ◽  
Bone Turnover Markers ◽  
Turnover Markers ◽  
Total Body

Background. Peripheral fat tissue is known to positively influence bone health. However, evidence exists that the risk of non-vertebral fractures can be increased in postmenopausal women with obesity as compared to healthy controls. The role of sclerostin, the SOST gene protein product, and body composition in this condition is unknown. Methods. We studied 28 severely obese premenopausal (age, 44.7 ± 3.9 years; BMI, 46.0 ± 4.2 kg/m2) and 28 BMI-matched post-menopausal women (age, 55.5 ± 3.8 years; BMI, 46.1 ± 4.8 kg/m2) thorough analysis of bone density (BMD) and body composition by dual X-ray absorptiometry (DXA), bone turnover markers, sclerostin serum concentration, glucose metabolism, and a panel of hormones relating to bone health. Results. Postmenopausal women harbored increased levels of the bone turnover markers CTX and NTX, while sclerostin levels were non-significantly higher as compared to premenopausal women. There were no differences in somatotroph, thyroid and adrenal hormone across menopause. Values of lumbar spine BMD were comparable between groups. By contrast, menopause was associated with lower BMD values at the hip (p < 0.001), femoral neck (p < 0.0001), and total skeleton (p < 0.005). In multivariate regression analysis, sclerostin was the strongest predictor of lumbar spine BMD (p < 0.01), while menopausal status significantly predicted BMD at total hip (p < 0.01), femoral neck (p < 0.001) and total body (p < 0.05). Finally, lean body mass emerged as the strongest predictor of total body BMD (p < 0.01). Conclusions. Our findings suggest a protective effect of obesity on lumbar spine and total body BMD at menopause possibly through mechanisms relating to lean body mass. Given the mild difference in sclerostin levels between pre- and postmenopausal women, its potential actions in obesity require further investigation.

scholarly journals Changes of vitamin D levels and bone turnover markers after CPAP therapy: a randomized sham-controlled trial

2017 ◽  
Vol 27 (4) ◽  
pp. e12606 ◽  
Author(s):  
Jenny Theorell-Haglöw ◽  
Camilla M. Hoyos ◽  
Craig L. Phillips ◽  
Brendon J. Yee ◽  
Markus Herrmann ◽  
...  
Keyword(s):  
Vitamin D ◽  
Bone Turnover ◽  
Bone Turnover Markers ◽  
Controlled Trial ◽  
Cpap Therapy ◽  
Vitamin D Levels ◽  
Turnover Markers

25-hydroxy vitamin D levels in healthy premenopausal women: Association with bone turnover markers and bone mineral density

Bone ◽  
2009 ◽  
Vol 45 (3) ◽  
pp. 423-426 ◽  
Author(s):  
Silvano Adami ◽  
Francesco Bertoldo ◽  
Vania Braga ◽  
Elena Fracassi ◽  
Davide Gatti ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Vitamin D ◽  
Bone Turnover ◽  
Bone Mineral ◽  
Bone Turnover Markers ◽  
Premenopausal Women ◽  
Mineral Density ◽  
Vitamin D Levels ◽  
25 Hydroxy Vitamin D ◽  
Turnover Markers

scholarly journals Vitamin D Metabolites and Sex Steroid Indices in Postmenopausal Women with and without Low Bone Mass

Metabolites ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 86
Author(s):  
Nasser M. Al-Daghri ◽  
Sobhy M. Yakout ◽  
Mohammed G.A. Ansari ◽  
Syed D. Hussain ◽  
Kaiser A. Wani ◽  
...  
Keyword(s):  
Vitamin D ◽  
Bone Turnover ◽  
Postmenopausal Women ◽  
Sex Hormones ◽  
Bone Turnover Markers ◽  
Vitamin D Metabolites ◽  
Mineral Density ◽  
Skeletal Health ◽  
Normal Bone Mineral Density ◽  
Turnover Markers

While the independent roles of vitamin D and sex hormones in skeletal health are well established, the associations of vitamin D and its metabolites to sex hormones and their indices are less investigated. In this observational study, clinical information of 189 Saudi postmenopausal women aged ≥50 years old [N = 80 with normal bone mineral density (BMD), aged 53.3 ± 7.7 years with body mass index (BMI)= 34.1kg/m2 ± 5.8, and N = 109 with low BMD (T-score −1.0 to −2.5), aged 57.0 ± 8.2 years, BMI = 32.4kg/m2 ± 6.2] was extracted from an existing capital-wide osteoporosis registry in Riyadh, Saudi Arabia. Data included were BMD scores, serum total 25(OH)D, sex hormones, and bone turnover markers which were measured using commercially available assays. Age- and BMI-adjusted comparisons revealed significantly higher parathyroid hormone (PTH) levels as well as significantly lower testosterone and bioavailable testosterone in the low BMD group than the normal BMD group (p-values 0.04, 0.02, and 0.03, respectively). Stepwise linear regression showed that circulating testosterone levels accounted for 9.7% and 8.9% of the variances perceived in bioavailable 25(OH)D and free 25(OH)D, respectively (p < 0.01), independent of other sex hormones, sex hormone indices, and bone turnover markers. Our study suggests that androgens are significantly associated with non-conventional vitamin D metabolites and these associations may have clinical relevance in assessing risk for low BMD and osteoporosis in Arab postmenopausal women.

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