Plasma amino acid profiles at various reproductive stages in female rats

The Journal of Veterinary Medical Science
Rieko OkameNoboru Murakami

Abstract

We measured the plasma levels of amino acids at various reproductive stages in female rats, including the estrous cycle, pregnancy and lactation, and compared the resulting amino acid profiles using two- or three-dimensional figures. These figures revealed that the amino acid profiles of pregnant and lactating dams differed considerably from those during the estrous cycle or in male rats. The plasma levels of individual amino acids were almost the same between proestrus, estrus, metestrus and diestrus, and their profiles did not differ significantly. However, the amino acid profiles changed during pregnancy and lactation in dams. The plasma Ser level decreased significantly in mid and late pregnancy, whereas Tyr, Gly and His decreased significantly in the late and end stages of pregnancy, and Trp and Lys significantly decreased and increased at the end of pregnancy, respectively. Much larger changes in amino acid profiles were observed during lactation, when the levels of many amino acids increased significantly, and none showed a significant decrease. Plasma Pro, Ser and Gly levels increased continuously from day 1 until day 15 of lactation, whereas Asn and Met increased significantly from days 1 and 5 respectively until the e...Continue Reading

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Citations

Aug 29, 2020·Amino Acids·Weihua XuNing Zhang
Dec 23, 2017·The Journal of Veterinary Medical Science·Satsuki NagamachiMitsuhiro Furuse
Apr 16, 2019·The Journal of Veterinary Medical Science·Mizuki HamadaMitsuhiro Furuse

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Methods Mentioned

BETA
PCA

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