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Action of Rilmenidine on Locus Ceruleus and Dorsal Raphe Cells in Vivo and in Vitro
Dresse, Albert; Scuvée-Moreau, Jacqueline; Seutin, Vincent
1988In American Journal of Cardiology, 61 (7), p. 32D-34
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Keywords :
Rilmenidine; clonidine; Locus coeruleus; dorsal raphe; brain slices
Abstract :
[en] The effect of rilmenidine (S 3341) and clonidine on the firing rate of locus ceruleus (LC) and dorsal raphe (DR) cells was studied in vivo after systemic and microiontophoretic administration. The effect of the 2 drugs was also studied in vitro on brain slices containing LC cells. Rilmenidine and clonidine inhibited the firing of LC and DR neurons. Complementary experiments performed with yohimbine and prazosin demonstrated that the effect of LC is related to an agonistic action on alpha 2 somatodendritic receptors, whereas the effect observed on DR cells is indirect. On LC cells, clonidine is 30 to 60 times as potent as rilmenidine. These observations may be related to less sedative effects of rilmenidine than of clonidine.
Disciplines :
Pharmacy, pharmacology & toxicology
Author, co-author :
Dresse, Albert ;  Université de Liège - ULiège > Services généraux (Faculté de médecine) > Relations académiques et scientifiques (Médecine)
Scuvée-Moreau, Jacqueline ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Pharmacologie - Département des sciences biomédicales et précliniques
Seutin, Vincent ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Pharmacologie
Language :
English
Title :
Action of Rilmenidine on Locus Ceruleus and Dorsal Raphe Cells in Vivo and in Vitro
Publication date :
10 February 1988
Journal title :
American Journal of Cardiology
ISSN :
0002-9149
eISSN :
1879-1913
Publisher :
Elsevier, New York, United States - New York
Volume :
61
Issue :
7
Pages :
32D-34D
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 16 April 2010

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