Document Detail

Response of reptilian gonad to melatonin.
MedLine Citation:
PMID:  7322274     Owner:  NLM     Status:  MEDLINE    
The effect of melatonin treatment on the weight and volume of gonads and accessory sex organs of sham-operated and pinealectomized lizards (Calotes versicolor) was examined during the different phases of the annual gonadal cycle of the animal. Melatonin injections to sham-operated lizards inhibited gonadal activity during the progressive (April-May), reproductive (June-July) and early regression (September-October) phases of the cycle, but had no effect on the atrophied gonad present during the inactive and early progressive phases. Pinealectomy increased the weight and volume of the gonads and accessory sex organs at all phases of the gonadal cycle. Melatonin treatment in pinealectomized lizards counteracted the effect of pinealectomy. It is concluded that melatonin is antigonadotropic in this species of tropical lizard.
C Haldar-Misra; J P Thapliyal
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Neuroendocrinology     Volume:  33     ISSN:  0028-3835     ISO Abbreviation:  Neuroendocrinology     Publication Date:  1981 Dec 
Date Detail:
Created Date:  1982-03-22     Completed Date:  1982-03-22     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0035665     Medline TA:  Neuroendocrinology     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  328-32     Citation Subset:  IM    
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MeSH Terms
Kidney / anatomy & histology
Lizards / physiology*
Melatonin / pharmacology*
Organ Size
Pineal Gland / physiology
Testis / anatomy & histology,  drug effects
Vas Deferens / anatomy & histology
Reg. No./Substance:

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