PMID- 12704399 OWN - NLM STAT- MEDLINE DCOM- 20030519 LR - 20140603 VI - 27 IP - 5 DP - 2003 May TI - Anti-obesity and anti-diabetic effects of brain-derived neurotrophic factor in rodent models of leptin resistance. PG - 557-65 AB - OBJECTIVE: Obesity in rodents and humans is mostly associated with elevated plasma leptin concentrations, suggesting a new pathological concept of 'leptin resistance'. We have demonstrated that brain-derived neurotrophic factor (BDNF) can improve obesity and diabetes of C57BL/KsJ db/db (db/db) mice. In this study, we investigated whether or not BDNF is effective in two different models of leptin resistance, an acquired model and a genetic model. DESIGN: C57BL/6J mice rendered obese by consumption of a high-fat diet (diet-induced obesity (DIO) mice) were used as an acquired model and lethal yellow agouti mice (KKA(y) mice) as a genetic model of leptin resistance. Food intake and glucose metabolism were studied after acute or repetitive administration of BDNF. RESULTS: Intraperitoneal administration of BDNF (10 mg/kg, twice/day) significantly reduced cumulative food intake of DIO and KKA(y) mice, whereas they were unresponsive to leptin administration. Repetitive subcutaneous administration of BDNF (10 mg/kg daily for 6 days) reduced food intake and improved impaired glucose tolerance in DIO mice. Pair feeding of vehicle-treated DIO mice with the same amount of chow consumed by the BDNF-treated group did not improve the impaired glucose homeostasis, indicating that the antidiabetic effect is not due to decreased food intake. We also observed that BDNF is effective in improving obesity and diabetes of KKA(y) mice. CONCLUSION: This study demonstrated antiobesity and antidiabetic effects of BDNF in two different models of leptin resistance, thereby suggesting the therapeutic potential of BDNF in the treatment of leptin-resistant obesity and diabetes. FAU - Nakagawa, T AU - Nakagawa T AD - Discovery Research Laboatories I, Sumitomo Pharmaceuticals Research Division, Osaka, Japan. FAU - Ogawa, Y AU - Ogawa Y FAU - Ebihara, K AU - Ebihara K FAU - Yamanaka, M AU - Yamanaka M FAU - Tsuchida, A AU - Tsuchida A FAU - Taiji, M AU - Taiji M FAU - Noguchi, H AU - Noguchi H FAU - Nakao, K AU - Nakao K LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Int J Obes Relat Metab Disord JT - International journal of obesity and related metabolic disorders : journal of the International Association for the Study of Obesity JID - 9313169 RN - 0 (Blood Glucose) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Insulin) RN - 0 (Leptin) SB - IM MH - Animals MH - Blood Glucose/analysis MH - Brain-Derived Neurotrophic Factor/*therapeutic use MH - Diabetes Mellitus/blood/*drug therapy MH - Drug Evaluation, Preclinical MH - Drug Resistance MH - Eating/drug effects MH - Glucose Tolerance Test MH - Insulin/blood MH - Leptin/*blood MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Obesity/blood/*drug therapy EDAT- 2003/04/22 05:00 MHDA- 2003/05/20 05:00 CRDT- 2003/04/22 05:00 PHST- 2003/04/22 05:00 [pubmed] PHST- 2003/05/20 05:00 [medline] PHST- 2003/04/22 05:00 [entrez] AID - 0802265 [pii] AID - 10.1038/sj.ijo.0802265 [doi] PST - ppublish SO - Int J Obes Relat Metab Disord. 2003 May;27(5):557-65. doi: 10.1038/sj.ijo.0802265.