Polyarticular Joint Pain in Adults: Evaluation and Differential Diagnosis.

Polyarticular joint pain involves five or more joints and can be inflammatory or noninflammatory. Two of the most common causes of chronic polyarthritis are osteoarthritis, especially in older patients, and rheumatoid arthritis, which affects at least 0.25% of adults worldwide.

Corticosteroid Injections for Common Musculoskeletal Conditions.

Family physicians considering corticosteroid injections as part of a comprehensive treatment plan for musculoskeletal diagnoses will find few high-quality studies to assist with evidence-based decision making. Most studies of corticosteroid injections for the treatment of osteoarthritis, tendinopathy, bursitis, or neuropathy include only small numbers of patients and have inconsistent long-term follow-up. Corticosteroid injections for the treatment of adhesive capsulitis result in short-term improvements in pain and range of motion.

Schoolteachers' awareness about scholastic performance and nutritional status of Egyptian schoolchildren.

Malnutrition disorders affect more than 30% of schoolchildren in Egypt. This problem appears to be largely attributable to poor dietary quality and micronutrient deficiencies, such as iron and vitamin A. Inadequate nutrition intake has important implications because malnutrition has been shown to negatively affect the cognitive development of primary schoolchildren.

Anabolic-androgenic steroids and testosterone precursors: ergogenic aids and sport.

This article reviews the recent literature on the use of anabolic-androgenic steroids (AAS) for performance enhancement. Recent studies utilizing supraphysiologic doses of testosterone have demonstrated increases in strength and improvements in body composition, despite earlier assertions by the medical community that steroids were ineffective as ergogenic aids. Although data that support the theory of conversion of prohormones, such as androstenediol, to testosterone in the body is available, support for testosterone precursors alone as ergogenic aids is lacking.