MUSCARINIC RECEPTOR - MEDIATED PHOSPHOINOSITIDE HYDROLYSIS IN RAT BRAIN

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Marmara Medical Journal
Volume:12 Issue:1
MUSCARINIC RECEPTOR - MEDIATED PHOSPHOINOSITIDE HYDROLYSIS IN RAT BRAIN

MUSCARINIC RECEPTOR - MEDIATED PHOSPHOINOSITIDE HYDROLYSIS IN RAT BRAIN

Authors : Hülya Cabadak, Beki Kan

Pages : 25-28

View : 12 | Download : 8

Publication Date : 2016-12-03

Article Type : Research Paper

Abstract :Objective: Activation of cholinergic muscarinic receptors leads to activation of membrane - bound phospholipase C, leading to generation of IP3 and diacylglycérol, The present study aimed at measuring muscarinic receptor-mediated phosphoinositide breakdown in three different regions of rat brain. Methods: Cortical, hippocampal and striatal slices labeled with [3H] myo-inositol were incubated with muscarinic agonist carbachol insert ignore into journalissuearticles values(Cch); and LiCI. Reaction was terminated by the addition of chloroform/methanol and labeled inositol phosphates were extracted from tissue. Individual [3H]- inositol phosphates were separated using anion exchange chromatography. Results: Cch caused a rise in IP, formation, where the increase over basal in the cortex, hippocampus and striatum were 98%, 73% and 45%, respectively. Conclusion: Phosphoinositide turnover was stimulated by carbachol in all brain structures studied, with the most pronounced effects observed in the cortex and hippocampus. Key Words: Muscarinic receptors, inositol phosphates, carbachol, rat brain
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