PMID- 10454360 OWN - NLM STAT- MEDLINE DCOM- 19990908 LR - 20240314 IS - 1072-0502 (Print) IS - 1072-0502 (Linking) VI - 5 IP - 4-5 DP - 1998 Sep-Oct TI - Impaired eye-blink conditioning in waggler, a mutant mouse with cerebellar BDNF deficiency. PG - 355-64 AB - In addition to their trophic functions, neurotrophins are also implicated in synaptic modulation and learning and memory. Although gene knockout techniques have been used widely in studying the roles of neurotrophins at molecular and cellular levels, behavioral studies using neurotrophin knockouts are limited by the early-onset lethality and various sensory deficits associated with the gene knockout mice. In the present study, we found that in a spontaneous mutant mouse, waggler, the expression of brain-derived neurotrophic factor (BDNF) was selectively absent in the cerebellar granule cells. The cytoarchitecture of the waggler cerebellum appeared to be normal at the light microscope level. The mutant mice exhibited no sensory deficits to auditory stimuli or heat-induced pain. However, they were massively impaired in classic eye-blink conditioning. These results suggest that BDNF may have a role in normal cerebellar neuronal function, which, in turn, is essential for classic eye-blink conditioning. FAU - Bao, S AU - Bao S AD - Neuroscience Program, University of Southern California, Los Angeles 90089, USA. FAU - Chen, L AU - Chen L FAU - Qiao, X AU - Qiao X FAU - Knusel, B AU - Knusel B FAU - Thompson, R F AU - Thompson RF LA - eng GR - 5P01-MH52194/MH/NIMH NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Learn Mem JT - Learning & memory (Cold Spring Harbor, N.Y.) JID - 9435678 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (RNA, Messenger) SB - IM MH - Animals MH - Auditory Cortex/physiology MH - Blinking/*physiology MH - Brain-Derived Neurotrophic Factor/*deficiency/genetics/*physiology MH - Cerebellum/cytology/*metabolism/*physiology MH - Conditioning, Classical/*physiology MH - Electromyography MH - Electroshock MH - Extinction, Psychological MH - Fear MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Mice, Neurologic Mutants MH - Neurons/*physiology MH - Pain/physiopathology MH - RNA, Messenger/analysis MH - Reaction Time MH - Transcription, Genetic PMC - PMC311271 EDAT- 1999/08/24 00:00 MHDA- 1999/08/24 00:01 PMCR- 1999/09/01 CRDT- 1999/08/24 00:00 PHST- 1999/08/24 00:00 [pubmed] PHST- 1999/08/24 00:01 [medline] PHST- 1999/08/24 00:00 [entrez] PHST- 1999/09/01 00:00 [pmc-release] PST - ppublish SO - Learn Mem. 1998 Sep-Oct;5(4-5):355-64.