NDLI: Localization and dynamics of Mel(1a) melatonin receptor in the ovary of carp Catla catla in relation to serum melatonin levels.

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Localization and dynamics of Mel(1a) melatonin receptor in the ovary of carp Catla catla in relation to serum melatonin levels.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Chattoraj, Asamanja Seth, Mohua Maitra, Saumen Kumar
Description	Country affiliation: India Author Affiliation: Chattoraj A ( Department of Zoology, Visva-Bharati University, Santiniketan 731235, India.)
Abstract	We studied the localization, sub-cellular distribution and daily rhythms of a 37 kDa melatonin receptor (Mel(1a)R) in the ovary to assess its temporal relationship with the serum melatonin levels in four different reproductive phases in carp Catla catla. Our immunocytochemical study accompanied by Western blot analysis of Mel(1a)R in the ovary revealed that the expression of this 37-kDa protein was greater in the membrane fraction than in the cytosol. Ovarian Mel(1a)R protein peaked at midnight and fell at midday in each reproductive phase. Conversely, serum melatonin levels in the same fish demonstrated a minimum diurnal value at midday in all seasons, but a peak at midnight (during pre-spawning, spawning, and post-spawning phases) or at late dark phase (during preparatory phase). In an annual cycle, band intensity of Mel(1a)R protein showed a maximum at night in the spawning phase and a minimum in the post-spawning phase, demonstrating an inverse relationship with the levels of serum melatonin. Our data provide first evidence of the presence of Mel(1a) melatonin receptor in carp ovary and offer interesting perspectives especially for the study of the mechanisms of the control of its rhythmicity and its response to external factors.
File Format	HTM / HTML
ISSN	10956433
Issue Number	3
Volume Number	152
e-ISSN	15314332
Journal	Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology
Language	English
Publisher	Elsevier
Publisher Date	2009-03-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Physiology Discipline Molecular Biology Carps Blood Metabolism Melatonin Ovary Receptor, Melatonin, Mt1 Animals Female Biosynthesis Reproduction Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Physiology Molecular Biology Biochemistry Aquatic Science Animal Science and Zoology

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