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KMID : 1140420220310010081
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Journal of Obesity & Metabolic Syndrome
2022 Volume.31 No. 1 p.81 ~ p.85
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Mouse Model of Small for Gestational Age Offspring with Catch-up Growth Failure and Dysregulated Glucose Metabolism in Adulthood
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Moon Hyeon-Seok
Kim Han-Bin
Kim Bo-Hye
Kim Min-Seon
Kim Jae-Hyun
Kwon O-Bin
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Abstract
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Background: We aimed to build mouse models of small for gestational age (SGA), recapitulating failure of catch-up growth and dysregulated metabolic outcomes in adulthood.
Methods: Pregnant C57BL/6 mice were given a protein-restricted diet (PRD; 6% kcal from protein) during pregnancy without (model 1) or with cross-fostering (model 2). Model 3 extended the PRD to the end of the lactation period. Model 4 changed to a 9% PRD without cross-fostering.
Results: Model 1 yielded a reduced size of offspring with a poor survival rate. Model 2 improved survival but offspring showed early catch-up growth. Model 3 maintained a reduced size of offspring after weaning with a higher body mass index and blood glucose levels in adult stages. Model 4 increased the survival of the offspring while maintaining a reduced size and dysregulated glucose metabolism.
Conclusion: Models 3 and 4 are suitable for studying SGA accompanying adulthood short stature and metabolic disorders.
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KEYWORD
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Small for gestational age, Growth failure, Glucose metabolism disorders, Obesity
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