| The composition of saturated fatty acids in plasma phospholipids changes in a way to counteract changes in the mean melting point during pregnancy. | |
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MedLine Citation:
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PMID: 11214724 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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It has been demonstrated that in pathological conditions with an increase in the calculated mean melting point (MMP) of phospholipid (PL) fatty acids (FA) there are changes in the composition of the saturated FA (SFA), which partially counteract this effect: shorter-chain SFA with lower melting points are increased, while longer-chain less fluid SFA are suppressed. The aim of this study was to determine whether there are differences in MMP during pregnancy and in the newborn and, if so, whether similar adaptive changes occur in the composition of the SFA. The FA composition of plasma PL was determined in healthy women (n = 16) twice during pregnancy (15-24 wk and 29-36 wk) and at delivery and in umbilical venous blood obtained at birth. The MMP of maternal PL was significantly higher at delivery compared to mid-gestation, due to a loss of highly unsaturated FA (HUFA) which were replaced by SFA. In addition, changes in the SFA occurred: 16:0 with lower melting point was higher while 18:0 with higher melting point was lower at delivery. MMP of PL FA in umbilical plasma was lower than in maternal plasma at delivery, which was due to higher HUFA content. In contrast to maternal plasma, 16:0 was lower while 18:0, 20:0, and 24:0 were higher in umbilical plasma resulting in a higher MMP of SFA, tending to raise the overall MMP. It can be concluded that, during pregnancy and in the newborn, the FA composition of SFA changes in a way to counteract changes in MMP induced by reduced and increased HUFA, respectively. |
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Authors:
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S R De Vriese; A C Houwelingen; G Hornstra; M Dhont; A B Christophe |
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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: Lipids Volume: 36 ISSN: 0024-4201 ISO Abbreviation: Lipids Publication Date: 2001 Jan |
Date Detail:
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Created Date: 2001-02-14 Completed Date: 2001-04-05 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 0060450 Medline TA: Lipids Country: United States |
Other Details:
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Languages: eng Pagination: 15-20 Citation Subset: IM |
Affiliation:
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Department of Internal Medicine, Ghent University Hospital, Belgium. Stephanie.DeVriese@rug.ac.be |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Arachidonic Acid
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blood Chemistry, Physical Fatty Acids / blood*, chemistry* Fatty Acids, Omega-3 / blood Fatty Acids, Omega-6 Fatty Acids, Unsaturated / blood Female Fetal Blood / chemistry* Gestational Age Hot Temperature Humans Infant, Newborn Linoleic Acid / blood Male Palmitic Acid / blood Phospholipids / blood*, chemistry* Physicochemical Phenomena Pregnancy Stearic Acids / blood Umbilical Veins |
| Chemical | |
Reg. No./Substance:
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0/Fatty Acids; 0/Fatty Acids, Omega-3; 0/Fatty Acids, Omega-6; 0/Fatty Acids, Unsaturated; 0/Phospholipids; 0/Stearic Acids; 2197-37-7/Linoleic Acid; 506-32-1/Arachidonic Acid; 57-10-3/Palmitic Acid; 57-11-4/stearic acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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