نتایج جستجو برای: 25ohd

تعداد نتایج: 432  

Journal: :Journal of the American College of Nutrition 1998
S S Harris B Dawson-Hughes

OBJECTIVE This analysis was conducted to compare wintertime 25-hydroxyvitamin D (25OHD) levels of young women who did and did not use oral contraceptives (OC). METHODS The subjects were 66 Caucasian women aged 20 through 40 recruited from the Boston area. Plasma 25OHD was measured in February or March and again 1 year later. Other measurements included height, weight and vitamin D intake from...

2014
Hae Sang Lee You Jin Kim Young Seok Shim Hwal Rim Jeong Eunbyul Kwon Jin Soon Hwang

PURPOSE Vitamin D deficiency has been linked to chronic diseases, such as diabetes mellitus, obesity and autoimmune disease. However, data on the vitamin D status and its association with precocious puberty in girls are limited. We aimed to investigate the association between serum 25-hydroxyvitamin D (25OHD) and precocious puberty in girls. METHODS A total of 60 girls with central precocious...

Journal: :Nutrition Journal 2021

Abstract Background To investigate the causal association between serum 25-hydroxyvitamin D (25OHD), calcium (Ca), and parathyroid hormone (PTH) levels risk of coronary artery disease (CAD) in patients with diabetes using a Mendelian randomization approach. Methods Genetic signatures associated 25OHD, Ca, PTH were extracted from recently published genome-wide study (GWAS), including 79,366, 39,...

Journal: :European journal of endocrinology 2006
B Moosgaard P Vestergaard L Heickendorff F Melsen P Christiansen L Mosekilde

BACKGROUND Primary hyperparathyroidism (PHPT) is associated with reduced plasma 25-hydroxyvitamin D (P-25OHD) and usually increased plasma 1alpha,25-dihydroxyvitamin D (P-1,25(OH)2D). Parathyroid tissue expresses the vitamin D receptor and it is thought that circulating 1,25(OH)2D participate in the regulation of parathyroid cell proliferation, differentiation and secretion. AIM To investigat...

2017
Nitin Gupta Khalid J. Farooqui Chandar M. Batra Raman K. Marwaha Ambrish Mithal

CONTEXT A number of controversies exist regarding appropriate treatment strategy for Vitamin D deficiency. AIMS The aim of this study was to investigate the efficacy of equivalent doses of oral cholecalciferol (60,000 IU weekly for 5 weeks) versus intramuscular (IM) cholecalciferol (300,000 IU) in correcting Vitamin D deficiency in apparently healthy volunteers working in a hospital. SETTIN...

Journal: :Diabetes care 2004
Robert Scragg MaryFran Sowers Colin Bell

OBJECTIVE To determine the association between serum 25-hydroxyvitamin D (25OHD) and diabetes risk and whether it varies by ethnicity. RESEARCH DESIGN AND METHODS We performed an analysis of data from participants who attended the morning examination of the Third National Health and Nutrition Examination Survey (1988-1994), a cross-sectional survey of a nationally representative sample of the...

2017
Eileen C. O’Brien Elizabeth J. O’Sullivan Mark T. Kilbane Aisling A. Geraghty Malachi J. McKenna Fionnuala M. McAuliffe

BACKGROUND Vitamin D status and season are intrinsically linked, and both have been proposed to be associated with glucose homeostasis in pregnancy, with conflicting results. We aimed to determine if exposure to winter and low maternal 25 hydroxyvitamin D (25OHD) in early pregnancy were associated with maternal glucose metabolism. METHODS This is a secondary data analysis of 334 pregnant wome...

Journal: :Hormone and metabolic research = Hormon- und Stoffwechselforschung = Hormones et metabolisme 2014
F Strobel J Reusch M Penna-Martinez E Ramos-Lopez E Klahold C Klepzig J Wehrle H Kahles K Badenhoop

The aim of our study was to investigate the influence of a 6-month vitamin D supplementation in patients with noninsulin-requiring type 2 diabetes mellitus. We included 86 patients in a placebo-controlled, randomised, double-blind study. During 6 months patients received Vigantol oil once a week corresponding to a daily dose of 1904 IU or placebo oil, followed by 6 months of follow-up. At start...

2013
Stig Andersen Anna Jakobsen Hanne Lynge Rex Folmer Lyngaard Inge-Lise Kleist Peder Kern Peter Laurberg

BACKGROUND Vitamin D status influences skeletal health, the risk of falls and fractures, and muscle health, and it has been associated with inflammatory, infectious, cardiovascular and metabolic disorders in addition to some cancers. Prevailing intracellular infections such as tuberculosis are speculated to relate to vitamin D status. The vitamin D sources are dietary and dermal, the latter dep...

2013
Marisa Censani Emily M. Stein Elizabeth Shane Sharon E. Oberfield Donald J. McMahon Shulamit Lerner Ilene Fennoy

BACKGROUND Obese adults are frequently vitamin D deficient before bariatric surgery; whether similar abnormalities exist in morbidly obese adolescents is unknown. OBJECTIVE To determine the prevalence of vitamin D deficiency in morbidly obese adolescents. METHODS Cross-sectional study of preoperative laboratory measures from 236 adolescents evaluated for bariatric surgery. RESULTS The gro...

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