1826-P: Dietary Models of Nonalcoholic Fatty Liver Disease in Normal and Diabetic Nonhuman Primates
2020
Nonalcoholic fatty liver disease (NAFLD) is the hepatic manifestation of metabolic syndrome as an arising health issue globally. Obesity and diabetes seem coherent with high NAFLD occurrence. Currently, its underlying mechanism of cause and progression remains to be elicited and effective therapy is unavailable. Huge investment on studying its pathogenesis and innovative therapy is underway. As mechanistic studies are more difficult or unethical to be performed in humans, animal model that recapitulates the human disease is urgently needed. Nonhuman primates (NHPs) with NAFLD can highly mimic the human disease. This study aimed to induce NAFLD by various diets (Table 1) in normoglycemic and diabetic NHPs with biomarker and histopathology assays to quantify NAFLD occurrence. Our data show that diabetic monkeys with high-fat-high-fructose (HFHF) diet developed NAFLD which could assemble to the human disease and be highly valuable for NAFLD research. However, low choline (LC), LC+10% fructose, LC+low methionine (LCM)+10% fructose diets for 31 weeks had no significant effects on liver function, except significant decrease in body weight and food intake in LCM+10%F group and some increase in liver histological scores in LC+10%F group (Table 1). In summary, normal diet with LC or LCM ± high fructose is hardly to induce NAFLD in normoglycemic NHPs, at least in 31 weeks. HFHF could induce or enhance NAFLD in diabetic NHPs. Disclosure J. Gao: Employee; Self; Crown Bioscience. D. Wang: Employee; Self; Crown Bioscience. Y. Ji: Employee; Self; Crown Bioscience. X. Zhang: Employee; Self; Crown Bioscience. C. Yang: None. J. Zhang: Employee; Self; Crown Bioscience. W. Ye: Employee; Self; Crown Bioscience. F. Shi: Employee; Self; Crown Bioscience. M. Jiang: Employee; Self; Crown Bioscience. Q. Jin: Employee; Self; Crown Bioscience. D. Zhang: None. X. Wang: None. W. Song: Employee; Self; Crown Bioscience. K. Chng: None. H. Jiang: Employee; Self; SYSE Bio-tec Co., Ltd. Y. Wang: None. Y. Xiao: Employee; Self; Crown Bioscience.
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