In vivo pharmacology of spleen contraction in ...
|Title||In vivo pharmacology of spleen contraction in rainbow trout|
|Author(s)||M. Pearson, G. Vanderkraak, E. Stevens|
|Journal||Canadian Journal of Zoology / Revue Canadienne De Zoologie|
|Abstract||Rainbow trout, Oncorhynchus mykiss, were injected with an adrenergic agonist. an adrenergic antagonist, or a cholinergic antagonist, via a dorsal aorta cannula. Spleen size and haemoglobin content were measured at rest and, for antagonists, following an air exposure stress. Injection of phentolamine (an alpha-antagonist) blocked the spleen contraction induced by air exposure, suggesting that control is mediated by alpha-adrenergic receptors. Air exposure effects were unaffected by beta-adrenergic blockade or muscarinic cholinergic blockade.|
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