EFFECT OF H2- HISTAMINERGIC AND MUSCARINIC CHOLINERGIC SYSTEMS ON WATER INTAKE IN ADULT MALE RATS

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EIDI A.; EIDI M.; NABIUNI F.

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Journal: JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY) Year:2010 | Volume:19 | Issue:74/1 (BIOLOGY ISSUE) Page(s): 29-40

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Title

EFFECT OF H2- HISTAMINERGIC AND MUSCARINIC CHOLINERGIC SYSTEMS ON WATER INTAKE IN ADULT MALE RATS

Author(s)

EIDI A. | EIDI M. | NABIUNI F. | Issue Writer Certificate

Keywords

HISTAMINERGIC SYSTEMQ3

CHOLINERGIC SYSTEMQ3

WATER INTAKEQ3

RATQ3

Abstract

Introduction: Histamine can be found in a restricted population of neurons originating from the tuberomammillary nucleus and projecting diffusely to several brain areas. The three subtypes of histamine receptors (H1, H2 and H3) are distributed in almost all parts of the brain of mammalian species. Central histaminergic neurons have been implicated in many physiological processes, such as circadian rhythms, thermoregulation, learning and memory and cardiovascular and neuroendocrine regulation. It is unclear whether endogenous histamine is involved in the regulation of water balance. Furthermore, in addition to its well documented modulation of food intake, the CHOLINERGIC SYSTEM also plays a role in WATER INTAKE.Aim: The present study investigated the effects of H2-histaminergic receptors and muscarinic cholinoceptors on WATER INTAKE in adult male RATs.Materials and Methods: Intraperitoneally (i.p.) injections were carried out in all experiments after 24-h deprivation of water. After deprivation, the volume of consumed water was measured for 1h.Results: Administration of pilocarpine, a muscarinic cholinoceptor agonist (1-10 mg/kg wt.), and histamine (1-5 mg/kg wt.) increased, while scopolamine, a muscarinic cholinoceptor antagonist (0.01-1 mg/kg wt.) and ranitidine, a histamine H2 receptor antagonist (10-50 mg/kg wt.) decreased WATER INTAKE in isolated RATs. Blockade of histamine H2 receptors attenuated the histamine-induced response. Pretreatment with ranitidine attenuated the pilocarpine-induced response.However, pharmacological blockade of muscarinic cholinoceptors by scopolamine did not potentiate the inhibitory effect induced by ranitidine.Conclusion: It is concluded that H2-histaminergicand muscarinic CHOLINERGIC SYSTEMs may interact on WATER INTAKE in RATs.

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APA: Copy

EIDI, A., EIDI, M., & NABIUNI, F.. (2010). EFFECT OF H₂- HISTAMINERGIC AND MUSCARINIC CHOLINERGIC SYSTEMS ON WATER INTAKE IN ADULT MALE RATS. JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY), 19(74/1 (BIOLOGY ISSUE)), 29-40. SID. https://sid.ir/paper/70382/en

Vancouver: Copy

EIDI A., EIDI M., NABIUNI F.. EFFECT OF H₂- HISTAMINERGIC AND MUSCARINIC CHOLINERGIC SYSTEMS ON WATER INTAKE IN ADULT MALE RATS. JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY)[Internet]. 2010;19(74/1 (BIOLOGY ISSUE)):29-40. Available from: https://sid.ir/paper/70382/en

IEEE: Copy

A. EIDI, M. EIDI, and F. NABIUNI, “EFFECT OF H₂- HISTAMINERGIC AND MUSCARINIC CHOLINERGIC SYSTEMS ON WATER INTAKE IN ADULT MALE RATS,” JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY), vol. 19, no. 74/1 (BIOLOGY ISSUE), pp. 29–40, 2010, [Online]. Available: https://sid.ir/paper/70382/en

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