PMID- 17130481 OWN - NLM STAT- MEDLINE DCOM- 20070116 LR - 20220408 IS - 0012-1797 (Print) IS - 1939-327X (Electronic) IS - 0012-1797 (Linking) VI - 55 IP - 12 DP - 2006 Dec TI - Hyperphagia, severe obesity, impaired cognitive function, and hyperactivity associated with functional loss of one copy of the brain-derived neurotrophic factor (BDNF) gene. PG - 3366-71 AB - The neurotrophin brain-derived neurotrophic factor (BDNF) inhibits food intake, and rodent models of BDNF disruption all exhibit increased food intake and obesity, as well as hyperactivity. We report an 8-year-old girl with hyperphagia and severe obesity, impaired cognitive function, and hyperactivity who harbored a de novo chromosomal inversion, 46,XX,inv(11)(p13p15.3), a region encompassing the BDNF gene. We have identified the proximal inversion breakpoint that lies 850 kb telomeric of the 5' end of the BDNF gene. The patient's genomic DNA was heterozygous for a common coding polymorphism in BDNF, but monoallelic expression was seen in peripheral lymphocytes. Serum concentration of BDNF protein was reduced compared with age- and BMI-matched subjects. Haploinsufficiency for BDNF was associated with increased ad libitum food intake, severe early-onset obesity, hyperactivity, and cognitive impairment. These findings provide direct evidence for the role of the neurotrophin BDNF in human energy homeostasis, as well as in cognitive function, memory, and behavior. FAU - Gray, Juliette AU - Gray J AD - University Department of Clinical Biochemistry, Cambridge Institute for Medical Research, Addenbrooke's Hospital, Cambridge, CB2 2XY, U.K. FAU - Yeo, Giles S H AU - Yeo GS FAU - Cox, James J AU - Cox JJ FAU - Morton, Jenny AU - Morton J FAU - Adlam, Anna-Lynne R AU - Adlam AL FAU - Keogh, Julia M AU - Keogh JM FAU - Yanovski, Jack A AU - Yanovski JA FAU - El Gharbawy, Areeg AU - El Gharbawy A FAU - Han, Joan C AU - Han JC FAU - Tung, Y C Loraine AU - Tung YC FAU - Hodges, John R AU - Hodges JR FAU - Raymond, F Lucy AU - Raymond FL FAU - O'rahilly, Stephen AU - O'rahilly S FAU - Farooqi, I Sadaf AU - Farooqi IS LA - eng GR - Z01 HD000641/ImNIH/Intramural NIH HHS/United States GR - Z99 HD999999/ImNIH/Intramural NIH HHS/United States GR - 068086/WT_/Wellcome Trust/United Kingdom GR - G9824984/MRC_/Medical Research Council/United Kingdom GR - G9724461/MRC_/Medical Research Council/United Kingdom GR - Z01 HD000641-12/ImNIH/Intramural NIH HHS/United States GR - MC_U105559861/MRC_/Medical Research Council/United Kingdom PT - Case Reports PT - Journal Article PT - Research Support, N.I.H., Intramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Diabetes JT - Diabetes JID - 0372763 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 9007-49-2 (DNA) SB - IM MH - Adult MH - Brain-Derived Neurotrophic Factor/blood/*genetics MH - *Chromosome Aberrations MH - Chromosome Inversion/*genetics MH - Chromosomes, Artificial, Bacterial MH - Cognition Disorders/*genetics MH - DNA/genetics/isolation & purification MH - Female MH - Humans MH - Hyperkinesis/*genetics MH - Hyperphagia/*genetics MH - *Mutation MH - Obesity/*genetics PMC - PMC2413291 MID - NIHMS51342 EDAT- 2006/11/30 09:00 MHDA- 2007/01/17 09:00 PMCR- 2008/06/05 CRDT- 2006/11/30 09:00 PHST- 2006/11/30 09:00 [pubmed] PHST- 2007/01/17 09:00 [medline] PHST- 2006/11/30 09:00 [entrez] PHST- 2008/06/05 00:00 [pmc-release] AID - 55/12/3366 [pii] AID - 10.2337/db06-0550 [doi] PST - ppublish SO - Diabetes. 2006 Dec;55(12):3366-71. doi: 10.2337/db06-0550.