摘要
Osteoporosis is a disease characterized by a low bone mineral density and structural deterioration of bone tissue. Leptin is considered to play a role in the maintenance of energy balance and body weight. Weight and body mass index are associated with low bone mineral density with high serum leptin concentration in older women. The study is designed to elucidate the impact of age and BMI （Body Mass Index） on osteoporotic patients （Iraqi postmenopausal women） and the functional role of leptin in those patients. A total of 72 patients divided into three groups according to BMI and two groups according to age： BMD （bone mineral density）, T-score and serum leptin concentration increased as BMI increased, while with increased age, BMD and T-score deceased and serum leptin concentration increased. There is a significant difference of BMD and T-score in BMI （25-30） group and BMI （〉 30） group from that in BMI （〈 25） group. In conclusions： Both age and BMI have an impact on osteoporosis although age shows more impact on the severity of the disease than does BMI. Studying the direct impact of leptin on BMD may open the way in using new methods in treating and preventing the osteoporosis in patients with risk factors.
