产前补充胆碱可改善产前和产后暴露于乙醇的子代小鼠的葡萄糖耐量,并减少肝脏脂肪堆积。
Prenatal Choline Supplementation Improves Glucose Tolerance and Reduces Liver Fat Accumulation in Mouse Offspring Exposed to Ethanol during the Prenatal and Postnatal Periods.
机构信息
PhD Program in Biochemistry, Graduate Center of the City University of New York, New York, NY 10016, USA.
Department of Health and Nutrition Sciences, Brooklyn College of the City University of New York, Brooklyn, NY 11210, USA.
出版信息
Nutrients. 2024 Apr 24;16(9):1264. doi: 10.3390/nu16091264.
Prenatal alcohol exposure (AE) affects cognitive development. However, it is unclear whether prenatal AE influences the metabolic health of offspring and whether postnatal AE exacerbates metabolic deterioration resulting from prenatal AE. Choline is a semi-essential nutrient that has been demonstrated to mitigate the cognitive impairment of prenatal AE. This study investigated how maternal choline supplementation (CS) may modify the metabolic health of offspring with prenatal and postnatal AE (AE/AE). C57BL/6J female mice were fed either a Lieber-DeCarli diet with 1.4% ethanol between embryonic day (E) 9.5 and E17.5 or a control diet. Choline was supplemented with 4 × concentrations versus the control throughout pregnancy. At postnatal week 7, offspring mice were exposed to 1.4% ethanol for females and 3.9% ethanol for males for 4 weeks. AE/AE increased hepatic triglyceride accumulation in male offspring only, which was normalized by prenatal CS. Prenatal CS also improved glucose tolerance compared to AE/AE animals. AE/AE suppressed hepatic gene expression of peroxisome proliferator activated receptor alpha () and low-density lipoprotein receptor (), which regulate fatty acid catabolism and cholesterol reuptake, respectively, in male offspring. However, these changes were not rectified by prenatal CS. In conclusion, AE/AE led to an increased risk of steatosis and was partially prevented by prenatal CS in male mice.
产前酒精暴露(AE)会影响认知发育。然而,目前尚不清楚产前 AE 是否会影响后代的代谢健康,以及产后 AE 是否会加剧产前 AE 导致的代谢恶化。胆碱是一种半必需营养素,已被证明可减轻产前 AE 引起的认知障碍。本研究探讨了母体胆碱补充(CS)如何可能改变具有产前和产后 AE(AE/AE)的后代的代谢健康。C57BL/6J 雌性小鼠在胚胎期 9.5 天至 17.5 天之间接受含有 1.4%乙醇的 Lieber-DeCarli 饮食或对照饮食喂养。胆碱在整个怀孕期间以 4 倍对照浓度补充。在出生后第 7 周,雌性后代小鼠暴露于 1.4%乙醇,雄性后代小鼠暴露于 3.9%乙醇 4 周。AE/AE 仅增加雄性后代的肝甘油三酯积累,而产前 CS 可使其正常化。与 AE/AE 动物相比,产前 CS 还改善了葡萄糖耐量。AE/AE 抑制了雄性后代肝脏中过氧化物酶体增殖物激活受体α()和低密度脂蛋白受体()的基因表达,分别调节脂肪酸分解代谢和胆固醇摄取。然而,这些变化并没有通过产前 CS 得到纠正。总之,AE/AE 导致雄性小鼠脂肪肝风险增加,而产前 CS 部分预防了这种情况。