Publication: Studies on the properties of muscarinic cholinergic receptor sites in bovine pineal gland
Issued Date
1989-01-01
Resource Type
ISSN
03064492
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2-s2.0-0024829103
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Mahidol University
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SCOPUS
Bibliographic Citation
Comparative Biochemistry and Physiology. Part C, Comparative. Vol.94, No.1 (1989), 159-164
Suggested Citation
P. Govitrapong, P. Phansuwan-Pujito, M. Ebadi Studies on the properties of muscarinic cholinergic receptor sites in bovine pineal gland. Comparative Biochemistry and Physiology. Part C, Comparative. Vol.94, No.1 (1989), 159-164. doi:10.1016/0742-8413(89)90160-6 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/15768
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Title
Studies on the properties of muscarinic cholinergic receptor sites in bovine pineal gland
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Abstract
1. Using the tritiated muscarinic receptor antagonist, quinuclidinyl benzilate ([ 3 H]QNB) as a ligand, muscarinic cholinergic receptors have been identified and characterized in the pineal glands of cow and swamp buffalo. 2. At 25°C, the specific binding reached equilibrium within 60 min and remained constant for an additional two hours. Furthermore, the specific binding was saturable, reversible and tissue dependent in nature. 3. The kinetic analyses of muscarinic cholinergic receptor sites revealed K D values of 0.423 ± 0.01 nM and 0.218 ± 0.01 nM, and B max values of 69.75 ± 20.91 fmol/mg protein and 74.19 ± 32.73 fmol/mg protein for the cow's- and the swamp buffalo's pineal glands, respectively. 4. The presence of muscarinic cholinergic receptor sites originating from cholinergic innervation of the pineal gland is suggested. © 1989.