Lei Ying, Liu Yan, Zhou Huimin, Li Min, Zhang Xiaojuan, Wang Zhanjian, Zhou Yaru
{"title":"茶多酚通过减少肝脏铁沉积改善铜蓝蛋白敲除小鼠的葡萄糖代谢","authors":"Lei Ying, Liu Yan, Zhou Huimin, Li Min, Zhang Xiaojuan, Wang Zhanjian, Zhou Yaru","doi":"10.1080/19476337.2022.2112299","DOIUrl":null,"url":null,"abstract":"ABSTRACT The present study aimed to investigate the role of tea polyphenols (TP) playing in glucose metabolism in male ceruloplasmin knockout mice (CP −/− ), an iron-overloaded model. Compared to wild-type CP +/+ mice, CP −/− mice exhibited hyperglycemia, insulin resistance and excess iron deposition in liver tissue. Increased hepatic oxidative stress (P<0.05), apoptosis, and reduced gene expression of insulin receptor substrate 2 (IRS2) and glucose transporter 2 (GLUT2) were found in CP −/− mice (P<0.05). TP treatment may ameliorate hepatic iron overload, oxidative stress and apoptosis, improve insulin sensitivity by upregulating IRS2 and GLUT2 expressions. TP administration could improve glucose homeostasis in CP −/− mice by alleviating hepatic iron-overload, oxidative stress, hepatocyte apoptosis, and restoring insulin signaling pathway. GRAPHICAL ABSTRACT","PeriodicalId":49084,"journal":{"name":"Cyta-Journal of Food","volume":null,"pages":null},"PeriodicalIF":2.1000,"publicationDate":"2022-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Tea polyphenols improve glucose metabolism in ceruloplasmin knockout mice via decreasing hepatic iron deposition\",\"authors\":\"Lei Ying, Liu Yan, Zhou Huimin, Li Min, Zhang Xiaojuan, Wang Zhanjian, Zhou Yaru\",\"doi\":\"10.1080/19476337.2022.2112299\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"ABSTRACT The present study aimed to investigate the role of tea polyphenols (TP) playing in glucose metabolism in male ceruloplasmin knockout mice (CP −/− ), an iron-overloaded model. Compared to wild-type CP +/+ mice, CP −/− mice exhibited hyperglycemia, insulin resistance and excess iron deposition in liver tissue. Increased hepatic oxidative stress (P<0.05), apoptosis, and reduced gene expression of insulin receptor substrate 2 (IRS2) and glucose transporter 2 (GLUT2) were found in CP −/− mice (P<0.05). TP treatment may ameliorate hepatic iron overload, oxidative stress and apoptosis, improve insulin sensitivity by upregulating IRS2 and GLUT2 expressions. TP administration could improve glucose homeostasis in CP −/− mice by alleviating hepatic iron-overload, oxidative stress, hepatocyte apoptosis, and restoring insulin signaling pathway. GRAPHICAL ABSTRACT\",\"PeriodicalId\":49084,\"journal\":{\"name\":\"Cyta-Journal of Food\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.1000,\"publicationDate\":\"2022-09-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Cyta-Journal of Food\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://doi.org/10.1080/19476337.2022.2112299\",\"RegionNum\":4,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cyta-Journal of Food","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1080/19476337.2022.2112299","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Tea polyphenols improve glucose metabolism in ceruloplasmin knockout mice via decreasing hepatic iron deposition
ABSTRACT The present study aimed to investigate the role of tea polyphenols (TP) playing in glucose metabolism in male ceruloplasmin knockout mice (CP −/− ), an iron-overloaded model. Compared to wild-type CP +/+ mice, CP −/− mice exhibited hyperglycemia, insulin resistance and excess iron deposition in liver tissue. Increased hepatic oxidative stress (P<0.05), apoptosis, and reduced gene expression of insulin receptor substrate 2 (IRS2) and glucose transporter 2 (GLUT2) were found in CP −/− mice (P<0.05). TP treatment may ameliorate hepatic iron overload, oxidative stress and apoptosis, improve insulin sensitivity by upregulating IRS2 and GLUT2 expressions. TP administration could improve glucose homeostasis in CP −/− mice by alleviating hepatic iron-overload, oxidative stress, hepatocyte apoptosis, and restoring insulin signaling pathway. GRAPHICAL ABSTRACT
期刊介绍:
CyTA – Journal of Food is an Open Access journal that publishes original peer-reviewed research papers dealing with a wide range of subjects which are essential to the food scientist and technologist. Topics include: chemical analysis of food; additives and toxins in food; sensory, nutritional and physiological aspects of food; food microbiology and biotechnology; changes during the processing and storage of foods; effect of the use of agrochemicals in foods; quality control in food; and food engineering and technology.