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Dietary L-arginine supplementation during days 14-25 of gestation enhances aquaporin expression in the placentae and endometria of gestating gilts

文献类型： 外文期刊

作者： Zhu, Cui 1 ; Li, Xilong 1 ; Bazer, Fuller W. 1 ; Johnson, Gregory A. 3 ; Burghardt, Robert C. 3 ; Jiang, Zongyong 2 ;

作者机构： 1.Texas A&M Univ, Dept Anim Sci, College Stn, TX 77843 USA

2.Guangdong Acad Agr Sci, Inst Anim Sci, Guangzhou 510640, Guangdong, Peoples R China

3.Texas A&M Univ, Dept Vet Integrat Biosci, College Stn, TX 77843 USA

关键词： Arginine; Aquaporin; Placenta; Water transport; Gilts

期刊名称：AMINO ACIDS （ 影响因子：3.52； 五年影响因子：3.6 ）

ISSN： 0939-4451

年卷期： 2021 年 53 卷 8 期

页码：

收录情况： SCI

摘要： This study tested the hypothesis that dietary L-arginine (Arg) supplementation to pregnant gilts enhanced the expression of water channel proteins [aquaporins (AQPs)] in their placentae and endometria. Gilts were fed twice daily 1 kg of a corn and soybean meal-based diet supplemented with 0.0%, 0.4%, or 0.8% Arg between Days 14 and 25 of gestation. On Days 25 and 60 of gestation, gilts were hysterectomized to obtain placentae and endometria. On Day 25 of gestation, supplementation with 0.4% Arg increased (P < 0.05) the abundance of placental AQP9 protein, whereas supplementation with 0.8% Arg increased (P < 0.05) placental AQP1 and AQP9 proteins, compared with controls. On Day 60 of gestation, supplementation with 0.4% Arg increased (P < 0.05) endometrial AQP1 protein, whereas supplementation with 0.8% Arg increased (P < 0.05) endometrial AQP5 and AQP9 proteins. Supplementation with 0.8% Arg increased the endometrial expression of AQP1, AQP5, and AQP9 proteins located in the luminal epithelium and glandular epithelium of endometria, and placental transport of (H2O)-H-3. Collectively, these results indicate that dietary Arg supplementation stimulates the expression of selective AQPs in porcine placenta and endometria, thereby enhancing water transport from mother to fetus and expanding the chorioallantoic membranes during the period of placentation.

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