Henna: a potential cause of oxidative hemolysis and neonatal hyperbilirubinemia.

Objective: To evaluate the in vitro oxidation potential of lawsone (2-hydroxy-1,4 naphthoquinone). Lawsone is a chemical present in henna, the crushed leaves of which are used worldwide as a cosmetic agent to stain the hair, skin, and nails.

Methodology: Venous blood from glucose-6-phosphate dehydrogenase (G6PD)-normal and G6PD A- subjects were incubated with various amounts of lawsone for 2 hours at 37 degrees C.

Office pediatrics. Physical growth and general nutrition.

Obesity is now one of the most prevalent diseases in the US population. Many observations suggest that two and possibly three critical periods exist for the development of obesity and its complications. An expert committee has developed guidelines for obesity in adolescence and recommendations for preventive services, whereas others have examined adolescent obesity and its cardiovascular risks and have suggested a rational approach to management and the effects of persistent physical activity and inactivity on coronary risk factors in children and young adults.