This Article Full Text (PDF) References Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Brown, M. H. Articles by Nunez, A. A. Search for Related Content PubMed PubMed Citation Articles by Brown, M. H. Articles by Nunez, A. A. Social Bookmarking                   What's this?

Axon-Sparing Lesions of the Hypothalamic Paraventricular Nucleus Abolish Gonadal Responses to Photoperiod in Male Syrian Hamsters

Department of Psychology and Neuroscience Program, 223 Psychology Research Building, Michigan State University, East Lansing, Michigan 48824-1117

Lori L. Badura

Department of Psychology and Neuroscience Program, 223 Psychology Research Building, Michigan State University, East Lansing, Michigan 48824-1117

Antonio A. Nunez

Department of Psychology and Neuroscience Program, 223 Psychology Research Building, Michigan State University, East Lansing, Michigan 48824-1117

Intrahypothalamic injections of the excitotoxin N-methyl-D,L-aspartic acid (NMA) that destroyed the parvocellular regions of the paraventricular nucleus (PVN) prevented go nadal regression in male hamsters (Mesocricetus auratus) kept in short days (LD 6:18). After 17 weeks in short days, these NMA-injected animals had large, functional gonads and dis played all components of male sexual behavior. These findings confirm that neurons of the PVN are part of the pathway that mediates photoperiodism in hamsters.

CiteULike    Connotea    Del.icio.us    Digg    Reddit    Technorati    What's this?