EXPRESSION OF RFAMIDE-RELATED PEPTIDE IN THE DORSOMEDIAL NUCLEUS OF HYPOTHALAMUS DURING THE ESTROUS CYCLE OF RATS

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JAFARZADEH SHIRAZI MOHAMMAD REZA; PAZHOOHI FARID; ZAMIRI MOHAMMAD JAVAD; SALEHI MOHAMMAD SAIED; NAMAVAR MOHAMMAD REZA; TAMADON AMIN; TANIDEH NADER; ZAREI AFSOON; TSUTSUI KAZUYOSHI

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Journal: Physiology and Pharmacology Year:2013 | Volume:17 | Issue:1 Page(s): 73-79

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Title

EXPRESSION OF RFAMIDE-RELATED PEPTIDE IN THE DORSOMEDIAL NUCLEUS OF HYPOTHALAMUS DURING THE ESTROUS CYCLE OF RATS

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Keywords

GONADOTROPIN RELEASING HORMONEQ2

ESTROUS CYCLEQ2

DORSOMEDIAL NUCLEUSQ2

RATQ3

Abstract

Introduction: RFamide-related peptide (RFRP) is believed to act as an inhibitor of GONADOTROPIN RELEASING HORMONE (GnRH) secretion. The aim of the present study was to compare the expression pattern of RFRP neurons in the DORSOMEDIAL NUCLEUS of hypothalamus (DMH) at different phases of the RAT ESTROUS CYCLE.Methods: The phases of the ESTROUS CYCLE were determined in 16 adult female Sprague-Dawley RATs using vaginal smears. The RATs were divided into five groups: proestrus phase (n=4), early estrus phase (n=3), estrus phase (n=3), metestrus phase (n=3) and diestrus phase (n=3). After transcardial perfusion, their brains were removed and fixed.Diencephalon of each RAT brain was sectioned, and DMH-containing sections were stained using an immunohistochemical method. The number of RFRP positive neurons in DMH was counted microscopically.Results: Almost all of the neurons expressing RFRP in the DMH were bipolar. Mean and standard error of the number of RFRP neurons during diestrus (45.8±12.6) and estrus phases (44.7±3.6) were greater (P<0.05) than early estrus (18.8±0.8) and proestrus phases (16.2±2.0).Conclusion: Results confirm a regulatory role for RFRP in DMH in the control of RAT ESTROUS CYCLE.

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APA: Copy

JAFARZADEH SHIRAZI, MOHAMMAD REZA, PAZHOOHI, FARID, ZAMIRI, MOHAMMAD JAVAD, SALEHI, MOHAMMAD SAIED, NAMAVAR, MOHAMMAD REZA, TAMADON, AMIN, TANIDEH, NADER, ZAREI, AFSOON, & TSUTSUI, KAZUYOSHI. (2013). EXPRESSION OF RFAMIDE-RELATED PEPTIDE IN THE DORSOMEDIAL NUCLEUS OF HYPOTHALAMUS DURING THE ESTROUS CYCLE OF RATS. PHYSIOLOGY AND PHARMACOLOGY, 17(1), 73-79. SID. https://sid.ir/paper/75048/en

Vancouver: Copy

JAFARZADEH SHIRAZI MOHAMMAD REZA, PAZHOOHI FARID, ZAMIRI MOHAMMAD JAVAD, SALEHI MOHAMMAD SAIED, NAMAVAR MOHAMMAD REZA, TAMADON AMIN, TANIDEH NADER, ZAREI AFSOON, TSUTSUI KAZUYOSHI. EXPRESSION OF RFAMIDE-RELATED PEPTIDE IN THE DORSOMEDIAL NUCLEUS OF HYPOTHALAMUS DURING THE ESTROUS CYCLE OF RATS. PHYSIOLOGY AND PHARMACOLOGY[Internet]. 2013;17(1):73-79. Available from: https://sid.ir/paper/75048/en

IEEE: Copy

MOHAMMAD REZA JAFARZADEH SHIRAZI, FARID PAZHOOHI, MOHAMMAD JAVAD ZAMIRI, MOHAMMAD SAIED SALEHI, MOHAMMAD REZA NAMAVAR, AMIN TAMADON, NADER TANIDEH, AFSOON ZAREI, and KAZUYOSHI TSUTSUI, “EXPRESSION OF RFAMIDE-RELATED PEPTIDE IN THE DORSOMEDIAL NUCLEUS OF HYPOTHALAMUS DURING THE ESTROUS CYCLE OF RATS,” PHYSIOLOGY AND PHARMACOLOGY, vol. 17, no. 1, pp. 73–79, 2013, [Online]. Available: https://sid.ir/paper/75048/en

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