Social domination increases neuronal survival in the brain of juvenile crayfish Procambarus clarkii.

Social domination increases neuronal survival in the brain of juvenile crayfish Procambarus clarkii. Research Abstract Details 

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Social domination increases neuronal survival in the brain of juvenile crayfish Procambarus clarkii. Abstract Text:

Cha-Kyong Song,Laurel M Johnstone,Manfred Schmidt,Charles D Derby,Donald H Edwards,Cha-Kyong Song,Laurel M Johnstone,Manfred Schmidt,Charles D Derby,Donald H Edwards,

Olfactory cues are among the sensory inputs that crayfish use in establishing dominance hierarchies. Throughout their lives, new neurons are continuously added into brain cell clusters 9 and 10, which contain somata of olfactory local and projection interneurons, respectively. Using markers for DNA synthesis (bromodeoxyuridine) and mitosis (phospho-histone-3), we tested juvenile crayfish (Procambarus clarkii) to examine effects of pairwise social experience on proliferation and survival of cells in these brain regions. Proliferating and mitotic cells appeared within restricted neurogenic areas in both clusters and in ;tails' extending from them. These tails, embedded in tubulin-positive strands, are linked by a patch of cells. Neither cell proliferation nor mitotic activity was affected by social dominance. Cell survival of neuronal precursors was affected by dominance: compared to dominants, subordinates had fewer newborn cells surviving in cluster 9 after 14 days of social experience. Social experience also affected body growth rate, but the effect of social experience on neurogenesis remained when differences in body growth rate were statistically controlled. We conclude that social domination enhances survival of new olfactory interneuronal precursors compared to social subordination but not compared to social isolation.

Social domination increases neuronal survival in the brain of juvenile crayfish Procambarus clarkii. Publishing Authors By Initials

CK Song,LM Johnstone,M Schmidt,CD Derby,DH Edwards,CK Song,LM Johnstone,M Schmidt,CD Derby,DH Edwards,

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Social domination increases neuronal survival in the brain of juvenile crayfish Procambarus clarkii. Journal Published:

PUBLICATION TYPE: Research Support, U.S. Gov't,

Journal: The Journal of experimental biology

VOLUME: 210

Page Numbers: 1311-24

Journal Abbreviation: J. Exp. Biol.

ISSN: 0022-0949

DAY: 2

MONTH: Apr

YEAR: 2007

Social domination increases neuronal survival in the brain of juvenile crayfish Procambarus clarkii. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Social domination increases neuronal survival in the brain of juvenile crayfish Procambarus clarkii.

AFFILIATION: Department of Biology, Program in Brains and Behavior, and Center for Behavioral Neuroscience, Georgia State University, Atlanta, GA 30302-4010, USA. dedwrds@gsu.edu

Country: England

AGENCY: United States NIMH

GRANT: MH62167

ACRONYM: MH

MEDLINETA: J Exp Biol

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