Hypovitaminosis D-Related Myopathy in Immigrant Teenagers

Hypovitaminosis D in healthy schoolchildren.

BACKGROUND Vitamin D is essential for skeletal growth, but there are currently no guidelines for vitamin D supplementation after infancy. This study investigates vitamin D insufficiency in healthy children. METHODS Children ages 10 to 16 years from 3 private schools in Beirut, Lebanon, with differing socioeconomic status (SES) were studied: 169 in the spring of 1999 and 177 in the following f...

Pediatric Hypovitaminosis D

Vitamin D, a secosteroid, is essential for the development and maintenance of healthy bone in both the adult and pediatric populations. Low level of 25-hydroxy vitamin D (25-(OH)-D) is highly prevalent in children worldwide and has been linked to various adverse health outcomes including rickets, osteomalacia, osteomalacic myopathy, sarcopenia, and weakness, growth retardation, hypocalcemia, se...

Hypovitaminosis D in systemic sclerosis.

Hypovitaminosis D in dogs with spirocercosis.

BACKGROUND Spirocercosis in dogs is characterized by esophageal nodules that can undergo neoplastic transformation. Hypovitaminosis D has been associated with neoplasia formation. We hypothesized hypovitaminosis D in neoplastic spirocercosis and that it could be a risk factor for neoplastic transformation. OBJECTIVE To measure and compare vitamin D status, assessed by serum 25-hydroxyvitamin ...

Hypovitaminosis D in Obese and Overweight Schoolchildren

AIM To determine the prevalence of vitamin D hypovitaminosis among obese and overweight schoolchildren. DESIGN A cross-sectional population based sample. METHODS In a cross-sectional study, 301 students (177 girls and 124 boys) aged 11-19 years were selected by multistage stratified sampling design. Subjects were classified according to their body mass index as obese, overweight and normal....