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The Influence of Sunlight Exposure on Serum Vitamin D Concentration and Bone Turnover;a controlled clinical trial
Sunlight exposure Vitamin D Bone turnover
2009/12/14
Background: Sunlight exposure is one of the ways for vitamin D synthesis. However, its effect on vitamin D status via experimental studies is poorly understood. This study was undertaken to address th...
Pediatric Radiation Exposure from Diagnostic Nuclear Medicine Examinations in Tehran
pediatrics diagnostic nuclear medicine radiation exposure
2010/2/5
Background/Objectives: As a part of a nationwide survey to estimate population exposure to radiation from diagnostic nuclear medicine in Iran, this paper presents the pediatric population radiation ex...
Environmental Exposure to Endotoxin and Decreased Risk of Childhood Atopy
asthma atopy endotoxin hygiene hypothesis metropolitan environment
2010/11/19
The hygiene hypothesis implies, in immunological terms, that microbial stimulation in early life skews the immune system towards the development of a T helper type 1 (Th1)-type lymphocyte population, ...