Document Detail

Effect of divalent ions in acrosome reaction induced by glycosamineglycans in porcine spermatozoa.
MedLine Citation:
PMID:  4062416     Owner:  NLM     Status:  MEDLINE    
Magnesium, calcium, and zinc at the concentration of 10 microM are capable of inducing a "true" acrosome reaction in the pig spermatozoa judged by the criteria of the fusion of the acrosome and the plasmatic membrane at the anterior region or the sperm nucleus. The optimal percent of acrosome reaction reached by any of the ions tested as a whole was 50%. When glycosamineglycan sulfate (GAGs) plus 10 microM of Mg++, Ca++, or Zn++ was added, they reach to 70-80% of acrosome reaction. At the electrom microscope, thin sections taken from pig spermatozoa treated with ions, GAGs, or ion + GAGs under optimal experimental conditions revealed the same pattern of acrosomal reaction. Results suggest the important role that divalent cations play in general in the induction of the acrosome reaction and question the so-called essential role of calcium ions.
N M Delgado; A Carranco; H Merchant; R Reyes
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Archives of andrology     Volume:  14     ISSN:  0148-5016     ISO Abbreviation:  Arch. Androl.     Publication Date:  1985  
Date Detail:
Created Date:  1985-12-09     Completed Date:  1985-12-09     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  7806755     Medline TA:  Arch Androl     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  193-8     Citation Subset:  IM    
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MeSH Terms
Acrosome / drug effects*,  ultrastructure
Calcium / pharmacology*
Glycosaminoglycans / pharmacology*
Magnesium / pharmacology*
Microscopy, Electron
Spermatozoa / drug effects*,  ultrastructure
Time Factors
Zinc / pharmacology*
Reg. No./Substance:
0/Glycosaminoglycans; 7439-95-4/Magnesium; 7440-66-6/Zinc; 7440-70-2/Calcium

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

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