Obesity: genetic, molecular, and environmental aspects.

Obesity has emerged as one of the most serious public health concerns in the 21st century. Obese children tend to become obese adults. The dramatic rise in pediatric obesity closely parallels the rapid increase in the prevalence of adult obesity.

Obesity in children.

The alarming increase in obesity in children has become a major health problem in the increased incidence of type 2 diabetes as well as other complications including cardiovascular diseases, hepatic disorders, skeletal abnormalities, malignancies and in particular psychological disorders. Mechanisms of appetite and energy metabolism are mediated through hormones leptin and ghrelin, and neuropeptide-Y neurons as well as genetic factors. Control of obesity is largely through appetite control and physical exercise.

Pathogenesis of cardiac conduction disorders in children genetic and histopathologic aspects.

Fetal dysrhythmias are usually transient. Abnormal fetal rates and rhythms during labor are "functional." Fetal dysrhythmias may be associated with congenital heart disease and fetal hydrops.