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Abstract

Effects of Carbachol on the Excitatory Muscarinic Cholinergic Receptors in Urinary Bladder and Plasma Inflammatory Mediators in Anesthetized Rats

Author(s): WEN. H, LI. H, DIFEI ZHU, LI WANG AND YANG. P*
Department of Anesthesiology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan 610000, PR China

Correspondence Address:
Department of Anesthesiology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan 610000, PR China , E-mail: weihong182553@163.com


To observe the effects of muscarinic cholinergic receptor agonist carbachol on urinary bladder function and plasma inflammatory mediators in anesthetized rats. A total of 20 rats were randomly divided into carbachol group and solvent control group, 10 rats in each group. The detection of bladder wall thickness and histological observation were conducted by light microscopy, the changes of urinary bladder function and plasma inflammatory mediators in rats were compared between the two groups. The maximum bladder capacity, static bladder pressure, compliance, bladder wet weight and bladder wall thickness in the carbachol group were significantly higher than those in the solvent control group. Light microscopic evaluation revealed that the detrusor cells in the solvent control group appeared to be in order in terms of size, arrangement and shape, while in the carbachol group the detrusor cells exhibited hypertrophy together with disordered arrangement, diverse morphology and vacuolar degeneration of muscle fiber. The levels of TNF-α and IL-10 in plasma of the carbachol group were significantly lower than those of the solvent control group. In anesthetized rats, the stimulation of muscarinic cholinergic receptors can significantly reduce urinary frequency, increase the volume of bladder storage and decrease systemic inflammatory response.

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Citations : 69022

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