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妊娠期间限制饮食和重新喂养可补偿母兔能量状态并减轻代谢后果,改善其幼兔后代的健康。

Gestation Food Restriction and Refeeding Compensate Maternal Energy Status and Alleviate Metabolic Consequences in Juvenile Offspring in a Rabbit Model.

机构信息

Department of Physiology, Veterinary Faculty, Complutense University of Madrid, 28040 Madrid, Spain.

Department of Animal Production, Veterinary Faculty, Complutense University of Madrid, 28040 Madrid, Spain.

出版信息

Nutrients. 2021 Jan 22;13(2):310. doi: 10.3390/nu13020310.

Abstract

Nutritional status during gestation can influence mother and offspring metabolism. Undernutrition in pregnancy affects women in both western and developing countries, and it is associated with a high prevalence of chronic diseases in later life. The present work was conducted in the rabbit model, as a longitudinal study, to examine the effect of food restriction during early and mid-gestation, and re-feeding ad libitum until the end of pregnancy on metabolic status and body reserves of mother and, its association with development and metabolism of fetuses and female offspring to the juvenile stage. Little changes in live body weight (LBW), compensatory feed intake, similar body reserves, and metabolism were observed in dams. Placenta biometry and efficiency were slightly affected, but fetal BW and phenotype were not modified. However, hyperinsulinemia, insulin resistance, and hypertriglyceridemia were demonstrated in pre-term fetuses. In the juvenile period, these changes were not evidenced, and a similar pattern of growth and serum metabolic parameters in offspring of food-restricted mothers were found, except in serum aminotransferases levels, which increased. These were associated with higher liver fibrosis. Maternal food restriction in the early and mid-pregnancy followed by re-feeding in our rabbit model established a compensatory energy status in dams and alleviated potential long-term consequences in growth and metabolism in the offspring, even if fetal metabolism was altered.

摘要

妊娠期间的营养状况会影响母婴代谢。在西方国家和发展中国家,孕妇营养不良的现象都很普遍,而且与晚年慢性病的高发率有关。本研究采用兔模型进行了一项纵向研究,旨在探讨妊娠早期和中期限制饮食以及随后自由喂养至妊娠末期对母体代谢状态和体储备的影响,并研究其与胎儿和雌性后代发育和代谢的关系。结果发现,母兔的活体重(LBW)、补偿性饲料摄入量、相似的体储备和代谢变化很小。胎盘生物计量和效率略有影响,但胎儿 BW 和表型未改变。然而,早产胎儿表现出高胰岛素血症、胰岛素抵抗和高甘油三酯血症。在幼年期,这些变化并未出现,并且发现限制饮食母亲的后代在生长和血清代谢参数方面具有相似的模式,除了血清转氨酶水平升高。这些与更高的肝纤维化有关。在我们的兔模型中,妊娠早期和中期限制饮食,随后自由喂养,建立了母体的代偿性能量状态,并减轻了后代生长和代谢的潜在长期后果,即使胎儿代谢发生了改变。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3f5d/7912334/5967d446d9ef/nutrients-13-00310-g001.jpg

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