| Plasma and follicular fluid fatty acid profiles in dairy cows. | |
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MedLine Citation:
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PMID: 19055554 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Composition of follicular fluid to which the preovulatory follicle is exposed may be one of the major factors determining subsequent fertility, as fatty acids are a precursor of hormones involved in dominance, ovulation and atresia mechanisms. The objective of this paper is to observe fatty acid profiles in various lipid classes according to estrogenic activity of follicles. For each of the 18 cows, we analysed plasma and follicular fluid fatty acid profiles of phospholipids, non-esterified fatty acid (NEFA), cholesteryl esters and triglycerides fractions. Follicles were classified as active (ratio oestrogen to progesterone E2/P4 > 1) and inactive (E2/P4 < 1). For seven cows, we get both types of follicles, six had only one active follicle and five cows had only one inactive follicle. The NEFA profile for palmitic acid, stearic acid, oleic acid, linoleic acid, C20:3n6, arachidonic acid and docosapentaenoic acid (DPA; p < 0.001) is different between inactive and active follicles and plasma. Compared with active follicular fluid and plasma, follicular fluid of inactive follicles showed lower stearic acid, higher oleic acid, arachidonic acid and DPA (p < 0.05) in phospholipids. No significant differences were observed in the cholesteryl ester fraction, which is composted mainly of linoleic acid. Triglyceride concentrations were too low to get reliable results. This study suggests that follicles have a specific fatty acid metabolism depending on oestrogen activity. |
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Authors:
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B Renaville; N Bacciu; A Comin; M Motta; I Poli; G Vanini; A Prandi |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2008-12-02 |
Journal Detail:
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Title: Reproduction in domestic animals = Zuchthygiene Volume: 45 ISSN: 1439-0531 ISO Abbreviation: Reprod. Domest. Anim. Publication Date: 2010 Feb |
Date Detail:
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Created Date: 2010-02-08 Completed Date: 2010-04-26 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9015668 Medline TA: Reprod Domest Anim Country: Germany |
Other Details:
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Languages: eng Pagination: 118-21 Citation Subset: IM |
Affiliation:
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Fisiologia Veterinaria e Nutrizione, Facolt? di Medicina Veterinaria, Universit? degli Studi di Udine, Udine, Italy. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Arachidonic Acid / analysis, blood Cattle / metabolism* Cholesterol Esters / analysis, blood Estradiol / analysis Fatty Acids / analysis*, blood* Fatty Acids, Nonesterified / analysis, blood Female Follicular Fluid / chemistry* Linoleic Acid / analysis, blood Oleic Acid / analysis, blood Ovarian Follicle / physiology Phospholipids / analysis, blood Progesterone / analysis Stearic Acids / analysis, blood Triglycerides / analysis, blood |
| Chemical | |
Reg. No./Substance:
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0/Cholesterol Esters; 0/Fatty Acids; 0/Fatty Acids, Nonesterified; 0/Phospholipids; 0/Stearic Acids; 0/Triglycerides; 112-80-1/Oleic Acid; 2197-37-7/Linoleic Acid; 50-28-2/Estradiol; 506-32-1/Arachidonic Acid; 57-11-4/stearic acid; 57-83-0/Progesterone |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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