Background Increasing evidence suggests a link between vitamin D and polycystic ovary
syndrome (PCOS). However, whether vitamin D is related to hyperandrogenemia in PCOS is …

Objective The free hormone hypothesis suggests that free and bioavailable 25-
hydroxyvitamin D [25 (OH) D] may better reflect vitamin D bioactivity. This study aimed to …

Objective: To analyze the associations between serum 25 (OH) D levels and the risk of
metabolic syndrome (MetS) and its components, and the related genetic and non-genetic …

The frequency of vitamin D deficiency in healthy children is relatively high. Moreover, vitamin
D supplementation in children is under the requested levels. The aim of this study is to …

Clinical studies backed by research in animal models suggest that vitamin D may protect
against the development of breast cancer, implicating vitamin D as a promising candidate for …

Background The association between vitamin D receptor (VDR) polymorphisms and
metabolic syndrome (MS) has been demonstrated by epidemiological studies while their …

Background Vitamin D insufficiency and deficiency in childhood are common. However, the
status and influential factors of vitamin D during different ages are not clear. This study …

The recommended daily dose of vitamin D is 2000 IU was found to be insufficient in many
patients. The objective of the present study is to find whether the daily dose of vitamin D …

Schistosomiasis is one of the most devastating human diseases worldwide. The disease is
caused by six species of Schistosoma blood fluke; five of which cause intestinal …

The skin has many functions, such as providing a barrier against injury and pathogens,
protecting from ultraviolet light, and regulating body temperature. Mechanical causes and …