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Comp Biochem Physiol B. 1987;86(3):575-80.

The transfer of radiolabelled n-6 essential fatty acids by the mammary system of the tree-shrew (Tupia tana).


The fatty acid content of tree-shrew milk has been determined from analysis of the stomach content of infants immediately after suckling. Comparison of the n-6 fatty acid composition of the stomach contents, liver and brain demonstrate a striking increment in the ratio of arachidonic to linoleic acid. Feeding radioactively labelled linoleic acid to the mother 24 hr prior to suckling showed that 12-20% was transferred to the milk. Evidence from the appearance of the radioactivity administered as linoleic acid into arachidonic acid indicates that this species is able to desaturate linoleic acid.

[Indexed for MEDLINE]

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