| A selective increase in circulating inhibin and inhibin pro-alphaC at the time of ovulation in the mare. | |
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MedLine Citation:
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PMID: 10567014 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The relationship between a selective increase in circulating immunoreactive (ir)-inhibin and the time of ovulation was investigated in mares. Concentrations of plasma ir-inhibin were measured every 4 h during the periovulatory period. Inhibin pro-alphaC, a precursor protein of the inhibin alpha-subunit, was also measured. The changes in ir-inhibin and inhibin pro-alphaC in circulation were parallel. Concentrations of both ir-inhibin and inhibin pro-alphaC in the plasma increased at the same time when ovulatory follicles ruptured, and the peak levels of circulating ir-inhibin and inhibin pro-alphaC were maintained for 4-8 h. There was no selective increase in plasma concentrations of estradiol-17beta during the process of ovulation. These results suggest that the selective increase in ir-inhibin and inhibin pro-alphaC was caused by the absorption of follicular fluid after the rupture of ovulatory follicles. These results also suggest that the measuring of plasma concentrations of ir-inhibin or inhibin pro-alphaC in mares might be a useful method for detecting the time of ovulation. |
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Authors:
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K Nagaoka; Y Nambo; N Nagamine; S I Nagata; Y Tanaka; H Shinbo; N Tsunoda; H Taniyama; G Watanabe; N P Groome; K Taya |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: The American journal of physiology Volume: 277 ISSN: 0002-9513 ISO Abbreviation: Am. J. Physiol. Publication Date: 1999 Nov |
Date Detail:
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Created Date: 1999-12-14 Completed Date: 1999-12-14 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0370511 Medline TA: Am J Physiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: E870-5 Citation Subset: IM |
Affiliation:
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Laboratory of Veterinary Physiology, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Biological Markers Breeding Enzyme-Linked Immunosorbent Assay / methods Female Follicle Stimulating Hormone / blood Horses / physiology* Inhibins / analysis, blood* Luteinizing Hormone / blood Ovulation / physiology* Progesterone / blood Protein Precursors / analysis, blood* Radioimmunoassay |
| Chemical | |
Reg. No./Substance:
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0/Biological Markers; 0/Protein Precursors; 0/inhibin-alpha subunit precursor; 57-83-0/Progesterone; 57285-09-3/Inhibins; 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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