The imperative of arachidonic acid in human reproduction

Crawford, Michael A., Sinclair, Andrew J., Hall, Barbara, Ogundipe, Enitan, Wang, Yiqun, Bitsanis, Dimitrios, Djahanbakhch, Ovrang B., Harbige, Laurence S., Golfetto, Ivan, Moodley, Therishnee, Hassam, Ahmed, Sassine, AnnieBelle and Johnson, Mark (2023) The imperative of arachidonic acid in human reproduction. Progress in lipid research (101222). ISSN 1873-2194

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Abstract / Description

We are presenting new evidence on essential fatty acids (EFA) in prenatal human development. We have demonstrated, for the first time, the detailed process of active selection of some fatty acids by the placenta (biomagnification) and rejection of others (bioreduction) and how this strategy is of supreme importance for understanding of the biology of human reproduction. The biomagnification process by the placenta is dominated by arachidonic acid (ArA) and its allies: di-homo-gamma-linolenic acid (DGLA), adrenic acid and ω6 docosapentaenoic acid. Stearic acid is similarly bio-magnified which is likely to provide for the sn-1 position in membrane synthesis. In contrast there is a bioreduction of oleic, linoleic and all ω3 precursors for docosahexaenoic acid (DHA), including eicosapentaenoic acid (EPA). Although DHA is biomagnified, the amplification from mother to fetus is small compared to ArA. We report on the dominant compartmentalisation of ArA from mother to fetal plasma, cell membranes of red cells, mono-nuclear cells, endothelium and the placenta. We conclude that ArA and its allies, play a paramount role in the development of the products of conception. It is plausible that inadequate provision of ArA may be relevant to the neuro-vascular complications of prematurity and neurodevelopmental disorders associated with premature birth. We present evidence of ArA's universal role from an identical arachidonic acid-based strategy observed in contrasting cultures. The dominance of ArA in the prenatal and in post-natal nutritional provision by human milk makes a compelling case for re-evaluation of its role, especially in reproductive biology.

Item Type:	Article
Additional Information:	** From PubMed via Jisc Publications Router
Uncontrolled Keywords:	arachidonic acid (ArA); stearic acid; placenta; adrenic acid; bioreduction; linoleic acid; di-homo-gamma-linolenic acid (DGLA); preterm birth; neurodevelopmental disorder; biomagnification; fetus; docosahexaenoic acid (DHA); eicosapentaenoic acid (EPA); complications of prematurity
Subjects:	600 Technology > 610 Medicine & health
Department:	School of Human Sciences
SWORD Depositor:	Pub Router
Depositing User:	Pub Router
Date Deposited:	01 Mar 2023 15:12
Last Modified:	02 Mar 2023 13:17
URI:	https://repository.londonmet.ac.uk/id/eprint/8316

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