منابع مشابه
Vitamin D deficiency in pregnancy may affect fetal thymus development.
OBJECTIVES The aim of our study was to evaluate the association of vitamin D deficiency (VDD) during pregnancy with thymus size in full-term fetuses. MATERIAL AND METHODS In this prospective study, we evaluated mid-pregnancy serum 25-hydroxyvitamin D3 (25(OH)D3) concentrations. The fetal thymus size was measured by ultrasound in the third trimester. Neonatal 25(OH)D3 levels were evaluated by ...
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The practice of “procedural disclosure” involves clinicians providing a description of the sensations that they assume patients are likely to experience during a procedure. The presumed rationale is threefold: as a corollary of the principle of informed consent; as part of truth telling in the clinician-patient relationship that fosters trust; and to help patients cope with procedures. But this...
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In 2005, nearly 21% of American adults smoked cigarettes, and 81% of them smoked every day. For smokers unable or unwilling to quit, tobacco products that reduce the adverse health effects of smoking may be an attractive option. Potentially reduced exposure products (PREPs) were developed by the tobacco industry in response to smokers' health concerns. PREPs purportedly lower the tar and/or nic...
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Epidemiological studies of the impact of environmental chemicals on reproductive health demonstrate consequences of exposure but establishing causative links requires animal models using 'real life' in utero exposures. We aimed to determine whether prolonged, low-dose, exposure of pregnant sheep to a mixture of environmental chemicals affects fetal ovarian development. Exposure of treated ewes ...
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Alcohol and other drugs are frequently used in combination. Based on data from the National Epidemiologic Survey on Alcohol and Related Conditions, Falk and colleagues (2006, 2008) reported that 21.7 percent of the sampled population used both alcohol and tobacco and 5.6 percent used alcohol and another drug. Among women aged 18 to 24 the rates were 25.5 percent and 12.5 percent, respectively. ...
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ژورنال
عنوان ژورنال: Nature
سال: 1996
ISSN: 0028-0836,1476-4687
DOI: 10.1038/381457a0