157 VITAMIN D METABOLISM IN MALE PUBERTY

Serum vitamin D levels in girls with central precocious puberty

Precocious puberty can cause several adverse effects on final growth and social behavior in girls. Recently studies showed that low serum vitamin D levels might be associated with precocious puberty. The aim of  this research was to investigate the association between serum vitamin D levels and central precocious puberty in girls. Girls with central precocious puberty under the age of 8 we...

Vitamin D metabolism. Recent advances.

Vitamin D Metabolism and Physiology

Background. Vitamin D insufficiency may lead to various health problems. By encouraging sun protection to prevent skin cancer, physicians may be limiting a major source of vitamin D for many individuals. Methods. We did a literature review on issues related to vitamin D inadequacy, particularly those relevant to various racial/ethnic groups. Results. Vitamin D is an important hormone with many ...

Vitamin D and Phospholipid Metabolism.

Although it has been known for many years that the primary physiological action of vitamin D is to improve calcium absorption from the small intestine (1,2), studies on calcium metabolism alone have thus far failed to elucidate the biochemical mechanism of action of vitamin D. Ry using everted intestinal sacs, Schacht,er and Rosen (3) have shown that vitamin D increases the transport of *%a aga...

Calcium and Vitamin D Metabolism in Pediatric Nephrotic Syndrome; An Update on the Existing Literature

 Minimal Change Disease (MCD) is the leading cause of childhood Nephrotic Syndrome (NS). Therefore in pediatrics nephrotic syndrome, most children beyond the first year of life will be treated with corticosteroids without an initial biopsy. Children with NS often display a number of calcium homeostasis disturbances causing abnormal bone histology, including hypocalcemia, reduced serum vitamin D...