Document Detail


Cyclic morphological variations in the gonadotropic cells in the pituitary gland of ewe.
MedLine Citation:
PMID:  6810567     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A histomorphological examination has been made in the pars distalis of the pituitaries of twelve normal healthy sexually mature ewes which were classified into three groups (resting, follicular and luteal phase) according to the different phases of reproduction. The histological features of FSH- and LH-cells during anestrus has been used to establish a standard with which the subsequent changes during the follicular and luteal phases were compared. Using PAS/OG, AB/OG and PFA/AB/PAS/OG stains, the FSH- and LH-cells were differentiated and identified from the other forms of the pars distalis cells. The topographical localization of the FSH- and LH-cells, in various regions and levels in the pars distalis of balady ewe as well as their frequencies during the different phases of reproductive cycle were discussed. Statistical analysis of the different cell count during the different phases of estrus cycle in comparison with the resting phase (anestrus), can be summarized as follows: - The FSH- and LH-cells are more pronounced, more active and significantly increased in number during the follicular phase of estrus cycle. - The LH-cells appear to be more abundant and show sings of hyperactivity at the luteal phase than the resting and follicular phases.
Authors:
A Hifny; A S Hassan; G Kamel; A Abo-Elmagd
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Zeitschrift für mikroskopisch-anatomische Forschung     Volume:  96     ISSN:  0044-3107     ISO Abbreviation:  Z Mikrosk Anat Forsch     Publication Date:  1982  
Date Detail:
Created Date:  1982-10-29     Completed Date:  1982-10-29     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0413637     Medline TA:  Z Mikrosk Anat Forsch     Country:  GERMANY, EAST    
Other Details:
Languages:  eng     Pagination:  303-17     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Estrus*
Female
Follicle Stimulating Hormone / physiology*
Luteinizing Hormone / physiology*
Pituitary Gland / cytology*
Pregnancy
Sheep / anatomy & histology*,  physiology
Chemical
Reg. No./Substance:
9002-67-9/Luteinizing Hormone; 9002-68-0/Follicle Stimulating Hormone

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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