Neurokinin Innervation of the Rat Median Raphe Nucleus Does Not Originate in the Brain Stem

1991 ◽  
Vol 632 (1 Substance P a) ◽  
pp. 431-434 ◽  
Author(s):  
STANLEY A. LORENS ◽  
JOSEPH M. PARIS ◽  
ERNST BRODIN
Keyword(s):  
Brain Stem ◽  
Raphe Nucleus ◽  
Median Raphe ◽  
Median Raphe Nucleus ◽  
The Brain ◽  
Median Raphé

Does serotonin play a role in entrance into hibernation?

1986 ◽  
Vol 251 (4) ◽  
pp. R755-R761 ◽  
Author(s):  
B. Canguilhem ◽  
J. L. Miro ◽  
E. Kempf ◽  
P. Schmitt
Keyword(s):  
Anterior Part ◽  
Raphe Nucleus ◽  
Median Raphe ◽  
Median Raphe Nucleus ◽  
Serotonergic Neurons ◽  
Electrolytic Lesions ◽  
Small Parts ◽  
The Brain ◽  
Median Raphé

To study the role of brain serotonin in entrance into hibernation, intraventricular injections of 5,7-dihydroxytryptamine, electrolytic lesions of small parts of the median raphe nucleus, and chemical lesions of the same nucleus were undertaken on the European hamster in winter. All the lesions led to a variable decrease of serotonin levels in all parts of the brain areas examined. However, hibernation was suppressed only in those animals whose serotonergic neurons were destroyed in a small anterior part of the median raphe nucleus. Electrolytic lesions as well as chemical lesions in the other parts of the median raphe nucleus or the 5,7-dihydroxytryptamine injections into lateral ventricles do not prevent hibernation. These data suggest that in the European hamster only a specific group of serotonergic neurons of the median raphe nucleus are involved in the process of entrance into hibernation.

Intra-median raphe nucleus (MRN) infusions of muscimol, a GABA-A receptor agonist, reinstate alcohol seeking in rats: role of impulsivity and reward

2007 ◽  
Vol 195 (4) ◽  
pp. 605-615 ◽  
Author(s):  
Anh Lê Dzung ◽  
Douglas Funk ◽  
Stephen Harding ◽  
Walter Juzytsch ◽  
Zhaoxia Li ◽  
...  
Keyword(s):  
Receptor Agonist ◽  
Raphe Nucleus ◽  
Median Raphe ◽  
Median Raphe Nucleus ◽  
Gaba A ◽  
Median Raphé ◽  
Alcohol Seeking

Early postnatal stress affects the 5-HTergic and GABAergic function of the median raphe nucleus in adult rats

2010 ◽  
Vol 68 ◽  
pp. e396
Author(s):  
Kohtarou Konno ◽  
Machiko Matsumoto ◽  
Takeshi Izumi ◽  
Hiroko Togashi ◽  
Takayuki Yoshida ◽  
...  
Keyword(s):  
Raphe Nucleus ◽  
Median Raphe ◽  
Median Raphe Nucleus ◽  
Adult Rats ◽  
Postnatal Stress ◽  
Gabaergic Function ◽  
Median Raphé
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