| Effects of changes in the concentration of systemic progesterone on ions, amino acids and energy substrates in cattle oviduct and uterine fluid and blood. | |
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MedLine Citation:
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PMID: 20353728 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Early embryo loss is a major factor affecting the conception rate in cattle. Up to 40% of cattle embryos die within 3 weeks of fertilisation while they are nutritionally dependent on oviduct and uterine fluids for their survival. Inadequate systemic progesterone is one of the factors contributing to this loss. We have characterised the effects of changes in systemic progesterone on amino acid, ion and energy substrate composition of oviduct and uterine fluids on Days 3 and 6, respectively, of the oestrus cycle in cattle. Oviduct and uterine fluids were collected in situ following infusion of progesterone. There was no effect of progesterone on oviduct fluid secretion rate; however, uterine fluid secretion rate was lowered. Progesterone increased uterine glucose, decreased oviduct sulfate and, to a lesser degree, oviduct sodium, but had no effect on any of the ions in the uterus. The most marked effect of progesterone was on oviducal amino acid concentrations, with a twofold increase in glycine, whereas in the uterus only valine was increased. These results provide novel information on the maternal environment of the early cattle embryo and provide further evidence of progesterone regulation of oviduct amino acid concentrations in cattle. |
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Authors:
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S A Hugentobler; J M Sreenan; P G Humpherson; H J Leese; M G Diskin; D G Morris |
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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: Reproduction, fertility, and development Volume: 22 ISSN: 1031-3613 ISO Abbreviation: Reprod. Fertil. Dev. Publication Date: 2010 |
Date Detail:
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Created Date: 2010-03-31 Completed Date: 2010-06-29 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8907465 Medline TA: Reprod Fertil Dev Country: Australia |
Other Details:
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Languages: eng Pagination: 684-94 Citation Subset: IM |
Affiliation:
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Animal Bioscience Department, Teagasc, Mellows Campus, Athenry, Galway, Ireland. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Amino Acids
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blood,
metabolism* Animals Blood Glucose / metabolism Body Fluids / metabolism* Cattle / blood, metabolism* Estrous Cycle / blood, drug effects, metabolism Fallopian Tubes / chemistry, drug effects*, metabolism* Female Ions / blood, metabolism Lactic Acid / blood, metabolism Progesterone / blood, metabolism, pharmacology* Pyruvic Acid / blood, metabolism Regression Analysis Uterus / chemistry, metabolism* |
| Chemical | |
Reg. No./Substance:
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0/Amino Acids; 0/Blood Glucose; 0/Ions; 127-17-3/Pyruvic Acid; 50-21-5/Lactic Acid; 57-83-0/Progesterone |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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