Mašek Tomislav, Roškarić Petra, Sertić Sunčica, Starčević Kristina
Department of Animal Nutrition and Dietetics, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, 10000 Zagreb, Croatia.
Department of Chemistry and Biochemistry, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, 10000 Zagreb, Croatia.
Metabolites. 2025 Jan 9;15(1):32. doi: 10.3390/metabo15010032.
: This study investigated the effects of maternal metabolic syndrome during pregnancy on hepatic fatty acid metabolism and betacellulin expression in rat offspring. A rat model of maternal metabolic syndrome was created with a high-fructose diet (15% fructose in drinking water for six months). : The females with metabolic syndrome were divided into the CON group, the HF group, which received fructose in drinking water, and the HF-DHA group, which received fructose in water and increased amounts of DHA (docosahexaenoic acid) and EPA (eicosapentaenoic acid) in the diet (2.5% fish oil in the diet). The male and female offspring were killed at birth and their liver tissue was analyzed for the fatty acid profile and expression of Δ-9-desaturase and betacellulin. : When the rat offspring were exposed in utero to maternal fatty acids altered by the high-fructose diet, this resulted in a similarly altered fatty acid profile in the liver, with the most significant changes being Δ-9 desaturation and a dramatic increase in monounsaturated fatty acids. The offspring also showed an overexpression of hepatic betacellulin. Supplementation with DHA and EPA increased the DHA content and normalized the fatty acid composition of oleic acid, saturated fatty acids, linoleic acid and n3-docosapentaenoic acid in the offspring of mothers on a high-fructose diet. In addition, the DHA/EPA supplementation of fructose-fed mothers normalized hepatic Δ-9-desaturase and betacellulin overexpression in the offspring, suggesting that DHA/EPA supplementation affects not only the fatty acid content but also the liver function. : The changes observed in this study suggest that DHA/EPA supplementation may modulate the effects of maternal programming on disorders of the lipid metabolism in the offspring.
本研究调查了孕期母体代谢综合征对大鼠后代肝脏脂肪酸代谢和β细胞ulin表达的影响。通过高果糖饮食(饮用水中含15%果糖,持续六个月)建立了母体代谢综合征大鼠模型。将患有代谢综合征的雌性大鼠分为对照组(CON组)、高果糖组(HF组,饮用水中含果糖)和高果糖 - 二十二碳六烯酸组(HF - DHA组,饮用水中含果糖且饮食中增加了二十二碳六烯酸(DHA)和二十碳五烯酸(EPA)的量,饮食中含2.5%鱼油)。雄性和雌性后代在出生时被处死,对其肝脏组织进行脂肪酸谱分析以及Δ - 9 - 去饱和酶和β细胞ulin表达分析。当大鼠后代在子宫内暴露于因高果糖饮食而改变的母体脂肪酸时,这导致肝脏中脂肪酸谱发生类似改变,最显著的变化是Δ - 9去饱和作用以及单不饱和脂肪酸急剧增加。后代还表现出肝脏β细胞ulin的过表达。补充DHA和EPA可增加DHA含量,并使高果糖饮食母亲的后代中油酸、饱和脂肪酸、亚油酸和n3 - 二十二碳五烯酸的脂肪酸组成正常化。此外,对喂食果糖的母亲补充DHA/EPA可使后代肝脏中Δ - 9 - 去饱和酶和β细胞ulin的过表达正常化,这表明补充DHA/EPA不仅影响脂肪酸含量,还影响肝功能。本研究中观察到的变化表明,补充DHA/EPA可能调节母体编程对后代脂质代谢紊乱的影响。