Functional ß2-adrenoceptors in right atria isolated from footshock-stressed rats

Bassani, R. A; Moraes, S. de

Bassani, R. A; Moraes, S. de.

Braz. j. med. biol. res ; 21(3): 557-9, Mar. 1988. tab

Article in English | LILACS | ID: lil-60259

ABSTRACT

ABSTRACT

The participation of ß2-adrenoceptors in the chronotropic response was evaluated in righ atria isolated from rats submitted to daily footshock stress for three days. Footshock increased both the sensitivity to salbutamol and the pA2 of butoxamine. These results provide additional support for the proposal that repeated footshock stress increases the functional of rat atrial postjunctional ß2-adrenoceptors

Subject(s)

Rats; Animals; Male; Albuterol/metabolism; Butoxamine/metabolism; Electroshock; Heart Rate/drug effects; Receptors, Adrenergic, beta/physiology; Isometric Contraction; Rats, Inbred Strains

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Index: LILACS (Americas) Main subject: Butoxamine / Receptors, Adrenergic, beta / Albuterol / Electroshock / Heart Rate Limits: Animals Language: English Journal: Braz. j. med. biol. res Journal subject: Biology / Medicine Year: 1988 Type: Article / Congress and conference / Project document

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