Sensitivity to ethanol-induced motor incoordination in 5-HT(1B) receptor null mutant mice is task-dependent: Implications for behavioral assessment of genetically altered mice

Stephen L. Boehm, Gwen L. Schafer, Tamara Phillips, Kaitlin E. Browman, John Jr Crabbe

Research output: Contribution to journalArticle

62 Citations (Scopus)

Abstract

Neuromuscular impairment by ethanol likely involves complex effects on balance, gait, muscle strength, and other features of motor coordination. The present experiments showed that relative sensitivity to ethanol-induced motor impairment in serotonin 1B (5-HT(1B)) null mutant and control mice was task dependent. We found that ethanol-treated null mutant mice made fewer missteps on a balance beam than did ethanol-treated wild-type mice, and confirmed a previous finding of their lesser ethanol sensitivity in the grid test. The genotypes did not differ in ethanol sensitivity as measured by the screen test, static dowel, fixed-speed rotarod, accelerating rotarod, grip strength, or loss of righting reflex tests. These experiments suggest that within a behavioral domain, alternative tests of function are not equivalent, so multiple assessment tools should be used to avoid misinterpretation of gene function.

Original languageEnglish (US)
Pages (from-to)401-409
Number of pages9
JournalBehavioral Neuroscience
Volume114
Issue number2
DOIs
StatePublished - 2000

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Receptor, Serotonin, 5-HT1B
Ataxia
Ethanol
Serotonin
Righting Reflex
Muscle Strength
Hand Strength
Gait
Genotype
Genes

ASJC Scopus subject areas

  • Behavioral Neuroscience
  • Clinical Psychology

Cite this

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AU - Browman, Kaitlin E.

AU - Crabbe, John Jr

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