BACKGROUNDS Vitamin D deficiency is a public health concern even in sunny areas, so we decided to assess the prevalence of vitamin D deficiency and its related factors among university students in Shiraz. METHODS This cross-sectional study was carried out on 254 (128 male and 126 female) university students. Demographic questionnaires and a questionnaire on exposure to sun light and sun prote...

Abstract The current objective was to develop imaging techniques characterize osteochondrotic-like lesions (OC-lesions) and evaluate the efficacy of dietary interventions promote lesion regression prevent lameness. Pigs (n=76) were weaned (~6kg) fed 1 2 nursery diets for 3-wk with no supplemental vitamin D, (-D, n=60) or 280 IU D3/kg (+D3, n=20). Following nursery, +D pigs standard (+Ctl) -D al...

BACKGROUND People over 60 years old are at risk of Vitamin D deficiency, which can affect functional performance, since this vitamin is involved in muscle function and protein synthesis. AIM To measure 25OH vitamin D levels in healthy older people from Santiago de Chile, and evaluate their relationship with functional performance. SUBJECTS AND METHODS Healthy subjects aged 60 years or more ...

OBJECTIVES To clarify potential differences between denosumab (DNS) and bisphosphonates (BIS) in terms of bone density and bone metabolism, in a sample of postmenopausal women. METHODS A total of 113 postmenopausal women aged 53-66 years were treated with either DNS or BIS for 12 months. Bone densitometry and laboratory tests were compared between baseline and follow-up. RESULTS Femoral nec...

Three experiments were conducted to determine whether feeding 25-hydroxyvitamin D3 (25OH D3) or 1,25-dihydroxyvitamin D3 (1,25-(OH)2 D3) improves the tenderness of longissimus dorsi (LD), semimembranosus (SM), and infraspinatus (IF) muscles similar to supplemental vitamin D3 without leaving residual vitamin D3 and its metabolites in muscle. In the first two experiments, 24 crossbred steers were...

BACKGROUND Osteoporosis and bone fractures seem to be higher in HIV-infected Patients compared to the general populations. Moreover, bone turnover markers are increased in patients on antiretroviral therapy and vitamin D deficiency is prevalent in HIV-infected patients. However, the influence of per oral cholecalciferol on bone metabolism in HIV infected patients is not well understood. METHO...

Current observations link vitamin D deficiency to many autoimmune diseases. There are limited data on vitamin D in Alopecia Areata, an autoimmune disease which in our experience shows seasonality in most of its remitting-relapsing forms. Our results demonstrate the presence of insufficiency of 25-hydroxyvitamin D (25OH-D) in many patients with various clinical forms, correlated with the expecte...

OBJECTIVE: There is increasing evidence that vitamin D can be protective against the development of multiple sclerosis (MS), but it may also be beneficial for the clinical course of the disease. Our objective was to prospectively investigate if 25-hydroxy-vitamin D (25OH-D) levels are associated with exacerbation risk in MS in a study with frequent serum measurements. METHODS: This was a prospe...