PMID- 12746306 OWN - NLM STAT- MEDLINE DCOM- 20030625 LR - 20111117 IS - 0013-7227 (Print) IS - 0013-7227 (Linking) VI - 144 IP - 6 DP - 2003 Jun TI - Reversal of behavioral and metabolic abnormalities, and insulin resistance syndrome, by dietary restriction in mice deficient in brain-derived neurotrophic factor. PG - 2446-53 AB - Dietary restriction (DR) extends life span and improves glucose metabolism in mammals. Recent studies have shown that DR stimulates the production of brain-derived neurotrophic factor (BDNF) in brain cells, which may mediate neuroprotective and neurogenic actions of DR. Other studies have suggested a role for central BDNF signaling in the regulation of glucose metabolism and body weight. BDNF heterozygous knockout (BDNF+/-) mice are obese and exhibit features of insulin resistance. We now report that an intermittent fasting DR regimen reverses several abnormal phenotypes of BDNF(+/-) mice including obesity, hyperphagia, and increased locomotor activity. DR increases BDNF levels in the brains of BDNF(+/-) mice to the level of wild-type mice fed ad libitum. BDNF(+/-) mice exhibit an insulin-resistance syndrome phenotype characterized by elevated levels of circulating glucose, insulin, and leptin; DR reduces levels of each of these three factors. DR normalizes blood glucose responses in glucose tolerance and insulin tolerance tests in the BDNF(+/-) mice. These findings suggest that BDNF is a major regulator of energy metabolism and that beneficial effects of DR on glucose metabolism are mediated, in part, by BDNF signaling. Dietary and pharmacological manipulations of BDNF signaling may prove useful in the prevention and treatment of obesity and insulin resistance syndrome-related diseases. FAU - Duan, Wenzhen AU - Duan W AD - Laboratory of Neurosciences, National Institute on Aging Gerontology Research Center, Baltimore, Maryland 21224, USA. FAU - Guo, Zhihong AU - Guo Z FAU - Jiang, Haiyang AU - Jiang H FAU - Ware, Melvin AU - Ware M FAU - Mattson, Mark P AU - Mattson MP LA - eng PT - Journal Article PL - United States TA - Endocrinology JT - Endocrinology JID - 0375040 RN - 0 (Blood Glucose) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Insulin) RN - 0 (Leptin) RN - 67763-96-6 (Insulin-Like Growth Factor I) SB - IM MH - Animals MH - Blood Glucose MH - Brain Chemistry/genetics MH - Brain-Derived Neurotrophic Factor/*genetics MH - *Caloric Restriction MH - Hyperinsulinism/diet therapy/physiopathology MH - Hyperphagia/diet therapy/physiopathology MH - Insulin/blood MH - *Insulin Resistance MH - Insulin-Like Growth Factor I/metabolism MH - Leptin/blood MH - Male MH - Mice MH - Mice, Knockout MH - Motor Activity MH - Obesity/*diet therapy/*physiopathology MH - Phenotype MH - Signal Transduction/physiology EDAT- 2003/05/15 05:00 MHDA- 2003/06/26 05:00 CRDT- 2003/05/15 05:00 PHST- 2003/05/15 05:00 [pubmed] PHST- 2003/06/26 05:00 [medline] PHST- 2003/05/15 05:00 [entrez] AID - 10.1210/en.2002-0113 [doi] PST - ppublish SO - Endocrinology. 2003 Jun;144(6):2446-53. doi: 10.1210/en.2002-0113.