Abstract：
:The intergeniculate leaflet (IGL) is a distinct division of the lateral geniculate complex that participates in the regulation of the circadian rhythm through its projections to the circadian pacemaker located in the suprachiasmatic nuclei of the hypothalamus. A high number of neuropeptide Y (NPY) cell bodies has been described in the IGL by immunohistochemistry and in situ hybridization. The present study investigated whether NPY in the IGL is influenced by the length of the daily photoperiod. By using in situ hybridization we show a significant increase of the number of NPY mRNA containing neurons in the mid-part of the IGL of Syrian hamsters maintained in a short photoperiod compared to those kept in a long photoperiod. On the other hand, NPY mRNA expression per cell in the IGL is similar in both photoperiods tested.
journal_name
Brain Resjournal_title
Brain researchauthors
Jacob N,Vuillez P,Moller M,Pévet Pdoi
10.1016/s0006-8993(98)01032-4subject
Has Abstractpub_date
1998-11-30 00:00:00pages
160-6issue
1eissn
0006-8993issn
1872-6240pii
S0006-8993(98)01032-4journal_volume
813pub_type
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