ArticleMolecular and cellular biochemistry2023
The effect of maternal period nutritional status on oro-sensorial fat perception and taste preference in rats.
Article in Molecular and cellular biochemistry, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
CD36 and GPR120 play an important role in the perception and preference for fat-rich food consumption. We aimed to investigate the relationship between oro-gustatory perception of lipids, fatty taste preference, and maternal (Gestation + Lactation)-maturation period nutrition status in offspring Sprague-Dawley rats. In our study, mother rats were fed with control (C) or high-fat diets (HFD) during gestation (21 days) and lactation (21 days) periods. After weaning, the offspring were fed with control (C) or high-fat diets (HFD) during the maturation (120 days) period. Daily calorie intake and weekly body weight measurements were monitored. Two-bottle preference (TBPT) and licking tests measured the fat perceptions and preferences. Plasma levels of insulin, leptin, glucose, and triglyceride were measured. The protein and mRNA expressions of CD36 and GPR120 in the circumvallate papillae (CVP) were determined. The 48 h TBPT results revealed that maternal HFD-exposed offspring rats significantly preferred 2% rapeseed oil solution regardless of the type of maturation diet. According to the licking test, C/C group (C diet exposed group in maternal and maturation periods) offspring licked 0.1% oleic acid-containing water more than C/HFD (C diet exposed in maternal period and HFD exposed group in maturation period) and HFD/HFD group. (HFD exposed group in maternal and maturation periods) groups. Plasma insulin and leptin concentrations significantly increased in HFD/HFD groups compared to C/C group. CD36 protein expressions were significantly lower in HFD/HFD than C/HFD and HFD/C groups. GPR120 and GNAT3 mRNA expressions in HFD/C group were significantly higher than in C/HFD group. Our results suggest that HFD exposure during maternal and maturation period may play a role in fat perception/preference through oral lipid sensors.
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