PMID- 17581841 OWN - NLM STAT- MEDLINE DCOM- 20071017 LR - 20200930 IS - 0363-6119 (Print) IS - 0363-6119 (Linking) VI - 293 IP - 3 DP - 2007 Sep TI - Brain-derived neurotrophic factor in the hypothalamic paraventricular nucleus reduces energy intake. PG - R1003-12 AB - Recent studies show that brain-derived neurotrophic factor (BDNF) decreases feeding and body weight after peripheral and ventricular administration. BDNF mRNA and protein, and its receptor tyrosine kinase B (TrkB) are widely distributed in the hypothalamus and other brain regions. However, there are few reports on specific brain sites of actions for BDNF. We evaluated the effect of BDNF in the hypothalamic paraventricular nucleus (PVN) on feeding. BDNF injected unilaterally or bilaterally into the PVN of food-deprived and nondeprived rats significantly decreased feeding and body weight gain within the 0- to 24-h and 24- to 48-h postinjection intervals. Effective doses producing inhibition of feeding behavior did not establish a conditioned taste aversion. PVN BDNF significantly decreased PVN neuropeptide Y (NPY)-induced feeding at 1, 2, and 4 h following injection. BDNF administration in the PVN abolished food-restriction-induced NPY gene expression in the hypothalamic arcuate nucleus. In conclusion, BDNF in the PVN significantly decreases food intake and body weight gain, suggesting that the PVN is an important site of action for BDNF in its effects on energy metabolism. Furthermore, BDNF appears to interact with NPY in its anorectic actions, although a direct effect on NPY remains to be established. FAU - Wang, ChuanFeng AU - Wang C AD - Veterans Affairs Medical Center, Research Service (151), One Veterans Drive, Minneapolis, MN 55417, USA. cwang@umn.edu FAU - Bomberg, Eric AU - Bomberg E FAU - Billington, Charles AU - Billington C FAU - Levine, Allen AU - Levine A FAU - Kotz, Catherine M AU - Kotz CM LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20070620 PL - United States TA - Am J Physiol Regul Integr Comp Physiol JT - American journal of physiology. Regulatory, integrative and comparative physiology JID - 100901230 RN - 0 (Appetite Stimulants) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (DNA Primers) RN - 0 (Neuropeptide Y) SB - IM CIN - Am J Physiol Regul Integr Comp Physiol. 2007 Sep;293(3):R988-91. PMID: 17596322 MH - Animals MH - Appetite Stimulants/pharmacology MH - Arcuate Nucleus of Hypothalamus/physiology MH - Body Weight/drug effects MH - Brain-Derived Neurotrophic Factor/administration & dosage/*pharmacology MH - Catheterization MH - DNA Primers MH - Eating/drug effects MH - Energy Intake/*drug effects MH - Food Deprivation/physiology MH - Gliosis/chemically induced/pathology MH - Male MH - Neuropeptide Y/pharmacology MH - Paraventricular Hypothalamic Nucleus/*physiology MH - Rats MH - Rats, Sprague-Dawley MH - Taste/drug effects EDAT- 2007/06/22 09:00 MHDA- 2007/10/18 09:00 CRDT- 2007/06/22 09:00 PHST- 2007/06/22 09:00 [pubmed] PHST- 2007/10/18 09:00 [medline] PHST- 2007/06/22 09:00 [entrez] AID - 00011.2007 [pii] AID - 10.1152/ajpregu.00011.2007 [doi] PST - ppublish SO - Am J Physiol Regul Integr Comp Physiol. 2007 Sep;293(3):R1003-12. doi: 10.1152/ajpregu.00011.2007. Epub 2007 Jun 20.