[Protective effect of corn peptide on nonalcoholic fatty liver disease in rats induced by high fat diet].
Wei Sheng Yan Jiu
; 52(2): 239-245, 2023 Mar.
Article
em Zh
| MEDLINE
| ID: mdl-37062686
ABSTRACT
OBJECTIVE:
To explore the dose-effect and mechanism of the protective effect of corn peptide(CP) on nonalcoholic fatty liver disease(NAFLD).METHODS:
Seventy male SD rats were randomly divided into control group, model group, CP group, puerarin positive control group, low-, medium-, high-dose corn peptide group, the experiment started after 1 week of adaptive feeding. The control group and CP group were fed with ordinary feed and others were fed with high-fat feed, while the control group was given intragastric administration of purified water, the CP group and the low-, medium-, high-dose corn peptide group were given intragastric administration of corn peptide(800, 400, 600 and 800 mg/(kg·d), respectively), and the puerarin positive control group was given intragastric administration of 300 mg/(kg·d) of puerarin, for 10 weeks. The body weight and general condition of rats were recorded every week, after 10 weeks, the indexes of 7 groups were compared.RESULTS:
Compared with the model group, the liver index(3.67, 3.29, 3.19 and 3.04, P<0.05) of the rats in the three doses of corn peptide groups decreased. The homeostasis model assessment of insulin resistance(13.66, 11.82, 11.55 and 10.53, P<0.05) decreased. The serum triglyceride(TG)(0.59, 0.42, 0.34 and 0.28, P<0.05), total cholesterol(TC)(2.57, 2.10, 1.67 and 1.46, P<0.05), free fatty acid(FFA)(0.66, 0.44, 0.40 and 0.36, P<0.05), and leptin(10.64, 9.87, 9.43 and 9.05, P<0.05) decreased. The serum interleukin-6(74.61, 61.66, 51.12 and 35.68, P<0.05) and tumor necrosis factor-α(100.18, 74.13, 67.44 and 48.46, P<0.05) decreased. The serum aspartate aminotransferase(41.38, 19.41, 14.98 and 8.44, P<0.05) and alanine aminotransferase(25.14, 13.10, 11.57 and 7.48, P<0.05) activity decreased. The liver TG(9.89, 5.55, 4.73 and 3.13, P<0.05), TC(1.73, 0.97, 0.80 and 0.50, P<0.05) and FFA(1.81, 1.11, 0.77 and 0.70, P<0.05) decreased. The serum malondialdehyde(MDA)(21.36, 15.24, 12.75 and 10.87, P<0.05) level and liver MDA(11.87, 8.27, 6.33 and 4.98, P<0.05) level decreased. The serum and liver superoxide dismutase and glutathione peroxidase activity increased(P<0.05), and the effect is related to the intervention dose of corn peptide. The size of the liver became smaller, the liver color gradually changed from light yellow to light red.CONCLUSION:
Corn peptide has a certain preventive effect on NAFLD in rats, and the preventive effect of corn peptide is related to its intervention dose.Palavras-chave
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Hepatopatia Gordurosa não Alcoólica
Idioma:
Zh
Ano de publicação:
2023
Tipo de documento:
Article