alexa Reductions in caloric intake and early postnatal growth prevent glucose intolerance and obesity associated with low birthweight.
Clinical Research

Clinical Research

Journal of Clinical Case Reports

Author(s): JimenezChillaron JC, HernandezValencia M, Lightner A, Faucette RR, Reamer C,

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Abstract AIMS/HYPOTHESIS: Low birthweight (LBW) and rapid postnatal weight gain, or catch-up growth, are independent risk factors for the development of obesity and diabetes during adult life. Individuals who are both small at birth and have postnatal catch-up growth are at the highest risk. We hypothesised that dietary interventions designed to attenuate catch-up growth in LBW subjects may have long-term beneficial consequences. MATERIALS AND METHODS: We used our previously described mouse model of LBW-associated diabetes, created by restricting maternal food intake to 50\% during the last week of gestation. Control (C) dams and dams that had been subjected to undernutrition (U) were then provided either chow ad libitum after delivery or 50\% food restriction on a per-day basis from delivery until weaning. We designated the resulting four groups control-control (CC), undernutrition-control (UC), control-undernutriton (CU) and undernutrition-undernutrition (UU), indicating the prenatal and postnatal experimental conditions, respectively. Carbohydrate metabolism and adiposity were assessed prospectively in offspring until age 6 months. RESULTS: Males that were small at birth and exhibited early postnatal catch-up growth developed glucose intolerance and obesity by age 6 months. In contrast, LBW mice without catch-up growth (UU) remained smaller than controls (CC), and glucose intolerance and obesity was prevented. Similarly, mice with normal birthweight that had blunted catch-up growth (CU) were leaner and had better tolerance test than CC mice. Catch-up growth during the first week of life correlated better than birthweight with glucose, fat mass and glucose tolerance up to 6 months of age. CONCLUSIONS/INTERPRETATION: Prevention of early catch-up growth reversed the development of glucose intolerance and obesity in our mouse model of LBW-associated diabetes. This article was published in Diabetologia and referenced in Journal of Clinical Case Reports

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