PMID- 11208925 OWN - NLM STAT- MEDLINE DCOM- 20020815 LR - 20190630 IS - 0022-3042 (Print) IS - 0022-3042 (Linking) VI - 76 IP - 2 DP - 2001 Jan TI - Brain-derived neurotrophic factor mediates an excitoprotective effect of dietary restriction in mice. PG - 619-26 AB - Dietary restriction (DR; reduced calorie intake) increases the lifespan of rodents and increases their resistance to cancer, diabetes and other age-related diseases. DR also exerts beneficial effects on the brain including enhanced learning and memory and increased resistance of neurons to excitotoxic, oxidative and metabolic insults. The mechanisms underlying the effects of DR on neuronal plasticity and survival are unknown. In the present study we show that levels of brain-derived neurotrophic factor (BDNF) are significantly increased in the hippocampus, cerebral cortex and striatum of mice maintained on an alternate day feeding DR regimen compared to animals fed ad libitum. Damage to hippocampal neurons induced by the excitotoxin kainic acid was significantly reduced in mice maintained on DR, and this neuroprotective effect was attenuated by intraventricular administration of a BDNF-blocking antibody. Our findings show that simply reducing food intake results in increased levels of BDNF in brain cells, and suggest that the resulting activation of BDNF signaling pathways plays a key role in the neuroprotective effect of DR. These results bolster accumulating evidence that DR may be an effective approach for increasing the resistance of the brain to damage and enhancing brain neuronal plasticity. FAU - Duan, W AU - Duan W AD - Laboratory of Neurosciences, National Institute on Aging, Baltimore, Maryland 21224, USA. FAU - Guo, Z AU - Guo Z FAU - Mattson, M P AU - Mattson MP LA - eng PT - Journal Article PL - England TA - J Neurochem JT - Journal of neurochemistry JID - 2985190R RN - 0 (Antibodies) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Neurotoxins) RN - SIV03811UC (Kainic Acid) SB - IM MH - Animals MH - Antibodies/administration & dosage MH - Body Weight MH - Brain-Derived Neurotrophic Factor/antagonists & inhibitors/*metabolism MH - Cell Count MH - Cell Survival/drug effects MH - Cerebral Cortex/cytology/metabolism MH - Corpus Striatum/cytology/metabolism MH - Cytoprotection MH - *Diet MH - Energy Intake MH - Enzyme-Linked Immunosorbent Assay MH - Hippocampus/cytology/drug effects/*metabolism MH - Injections, Intraventricular MH - Kainic Acid/administration & dosage MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Neuronal Plasticity/physiology MH - Neurons/cytology/drug effects/*metabolism MH - Neurotoxins/administration & dosage MH - Signal Transduction/physiology EDAT- 2001/02/24 11:00 MHDA- 2002/08/16 10:01 CRDT- 2001/02/24 11:00 PHST- 2001/02/24 11:00 [pubmed] PHST- 2002/08/16 10:01 [medline] PHST- 2001/02/24 11:00 [entrez] AID - 10.1046/j.1471-4159.2001.00071.x [doi] PST - ppublish SO - J Neurochem. 2001 Jan;76(2):619-26. doi: 10.1046/j.1471-4159.2001.00071.x.