Racial and seasonal differences in 25-hydroxyvitamin D detected in maternal sera frozen for over 40 years
نویسندگان
چکیده
منابع مشابه
Maternal 25-hydroxyvitamin d and preterm birth in twin gestations.
OBJECTIVE To assess whether there was an independent association between maternal 25-hydroxyvitamin D concentrations at 24-28 weeks of gestation and preterm birth in a multicenter U.S. cohort of twin pregnancies. METHODS Serum samples from women who participated in a clinical trial of 17 α-hydroxyprogesterone caproate for the prevention of preterm birth in twin gestations (2004-2006) were ass...
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BACKGROUND There is increasing evidence that vitamin D deficiency is common and has been associated with several non-bone related outcomes, including insulin resistance, type 2 diabetes and cardiovascular disease. The influences of gender, puberty, and adiposity on serum hydroxyvitamin D (25-OH-D) levels and the relationship between 25-OH-D and insulin resistance in obese children were studied....
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Background and aims: Blacks have a higher rate of chronic medical conditions (CMC), disability, and depressive symptoms compared to Whites. The present study compared Blacks and Whites for bidirectional associations between CMC, disability, and depressive symptoms over a 25-year period. Methods: Data came from all five waves (1986, 1989, 1994, 2001, and 2...
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The major source of vitamin D in humans is ultraviolet B (UVB) radiation in sunshine. It has been estimated that vitamin D production in skin provides between 80-100% of the body’s vitamin D requirements [2], and that food sources play a lesser role. Vitamin D is produced when UVB radiation reaches 7-dehydrocholestol in the skin, and there are a number of personal and environmental factors that...
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این بررسی گذشته نگر ۱۲۵ حاملگی در خانم های بالای ۴۰ سال حاکی از افزایش قابل توجه عوارض مادری و جنینی مثل هبپتانسبون مزمن، دیابت، بیماری قلبی، هیدرآمنیوس و دو قلویی در مادران مسن بود. جدا شدن زودرس جفتسر راهی در این گروه شایع تر بود و پرزانتاسیونهای غیرطبیعی در ۱۹ درصد موارد میزان سزارین و مرگ و میر جنینی پنج برابر بیش از گروه شاهد بوده است. تاخیر رشد داخل رحمی جنین و نوزادان با وزن بالای ۴۰۰۰ گ...
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ژورنال
عنوان ژورنال: British Journal of Nutrition
سال: 2008
ISSN: 0007-1145,1475-2662
DOI: 10.1017/s0007114508981460