Horizontal knife cuts in the suprachiasmatic area prevent hamster gonadal responses to photoperiod

Gail A. Eskes; Benjamin Rusak

doi:10.1016/0304-3940(85)90474-4

Horizontal knife cuts in the suprachiasmatic area prevent hamster gonadal responses to photoperiod

Gail A. Eskes, Benjamin Rusak

Medicine

Medicine

Résultat de recherche: Article › examen par les pairs

20 Citations (Scopus)

Résumé

We used horizontal knife cuts near the suprachiasmatic nucleus (SCN) to investigate the route for daylength information transmission from the SCN to the paraventricular nucleus (PVN). Testicular regression was blocked in animals with knife cuts dorsal to the SCN that spanned its entire rostrocaudal extent, and in PVN-ablated animals. Misplaced cuts in the ventral preoptic area also prevented gonadal regression. These neural insults did not systematically affect the circadian control of activity rhythms. The pathway from the SCN to the pineal runs from the dorsal border of the SCN and travels through the periventricular area toward the PVN.

Langue d'origine	English
Pages (de-à)	261-266
Nombre de pages	6
Journal	Neuroscience Letters
Volume	61
Numéro de publication	3
DOI	https://doi.org/10.1016/0304-3940(85)90474-4
Statut de publication	Published - nov. 11 1985

Note bibliographique

Funding Information:
We thank Dwight Nance for his help and advice and Donna Goguen for technical assistance. This research was supported by an NRSA from NICHHD (to G.E.) and by grants from NSERC of Canada and Dalhousie RDFS (to B.R.).

ASJC Scopus Subject Areas

General Neuroscience

PubMed: MeSH publication types

Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, P.H.S.

Accès au document

10.1016/0304-3940(85)90474-4

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abstract = "We used horizontal knife cuts near the suprachiasmatic nucleus (SCN) to investigate the route for daylength information transmission from the SCN to the paraventricular nucleus (PVN). Testicular regression was blocked in animals with knife cuts dorsal to the SCN that spanned its entire rostrocaudal extent, and in PVN-ablated animals. Misplaced cuts in the ventral preoptic area also prevented gonadal regression. These neural insults did not systematically affect the circadian control of activity rhythms. The pathway from the SCN to the pineal runs from the dorsal border of the SCN and travels through the periventricular area toward the PVN.",

author = "Eskes, {Gail A.} and Benjamin Rusak",

note = "Funding Information: We thank Dwight Nance for his help and advice and Donna Goguen for technical assistance. This research was supported by an NRSA from NICHHD (to G.E.) and by grants from NSERC of Canada and Dalhousie RDFS (to B.R.).",

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AU - Eskes, Gail A.

AU - Rusak, Benjamin

N1 - Funding Information: We thank Dwight Nance for his help and advice and Donna Goguen for technical assistance. This research was supported by an NRSA from NICHHD (to G.E.) and by grants from NSERC of Canada and Dalhousie RDFS (to B.R.).

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Y1 - 1985/11/11

N2 - We used horizontal knife cuts near the suprachiasmatic nucleus (SCN) to investigate the route for daylength information transmission from the SCN to the paraventricular nucleus (PVN). Testicular regression was blocked in animals with knife cuts dorsal to the SCN that spanned its entire rostrocaudal extent, and in PVN-ablated animals. Misplaced cuts in the ventral preoptic area also prevented gonadal regression. These neural insults did not systematically affect the circadian control of activity rhythms. The pathway from the SCN to the pineal runs from the dorsal border of the SCN and travels through the periventricular area toward the PVN.

AB - We used horizontal knife cuts near the suprachiasmatic nucleus (SCN) to investigate the route for daylength information transmission from the SCN to the paraventricular nucleus (PVN). Testicular regression was blocked in animals with knife cuts dorsal to the SCN that spanned its entire rostrocaudal extent, and in PVN-ablated animals. Misplaced cuts in the ventral preoptic area also prevented gonadal regression. These neural insults did not systematically affect the circadian control of activity rhythms. The pathway from the SCN to the pineal runs from the dorsal border of the SCN and travels through the periventricular area toward the PVN.

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Horizontal knife cuts in the suprachiasmatic area prevent hamster gonadal responses to photoperiod

Résumé

Note bibliographique

ASJC Scopus Subject Areas

PubMed: MeSH publication types

Accès au document

Autres fichiers et liens

Empreinte numérique

Citer