{"title":"经热处理和/或溶菌酶处理的粪肠球菌(FK-23)可改善单侧缺血再灌注损伤大鼠模型中肾病的进展。","authors":"Shigekazu Takemura, Yukiko Minamiyama, Norihiko Ito, Atsushi Yamamoto, Hiroshi Ichikawa, Kanako Nakagawa, Shinya Toyokuni, Mayuko Osada-Oka, Toshikazu Yoshikawa","doi":"10.3164/jcbn.24-29","DOIUrl":null,"url":null,"abstract":"<p><p>The prevalence of chronic kidney disease (CKD) is increasing owing to the elderly population. Here, we investigated the effects of heat-treated <i>Enterococcus faecalis</i> (FK-23) and lysozyme-treated FK-23 (LFK) on the progression of CKD in rats. A CKD model was established using male Wistar rats by subjecting them to right nephrectomy (1K), followed by ischemia and reperfusion (IR). FK-23 or LFK was fed <i>ad libitum</i> as a mixed diet after right nephrectomy. Animals subjected to renal ischemia-reperfusion injury (IRI) showed increased plasma creatinine and blood urea nitrogen levels. Furthermore, in the kidneys, collagen accumulation and α-smooth muscle actin, indicative of fibroblast activation and fibrosis-related gene and protein expression, increased 3 weeks after IRI. FK-23 and LFK suppressed the increase in the mRNA levels of some of these genes. The increase in oxidative stress markers, 4-hydroxy-2-nonenal, endothelial nitric oxide synthase, and nitrotyrosine in the kidney, as well as increased plasma uremic toxins after IRI, were also ameliorated by FK-23 and LFK. Metagenomic analysis of fecal samples revealed that gut microbial alteration caused by IRI was also ameliorated by LFK treatment. These results suggest that <i>Enterococcus faecalis</i> ingredients may improve CKD progression by suppressing oxidative stress and correcting the balance of the intestinal microflora.</p>","PeriodicalId":15429,"journal":{"name":"Journal of Clinical Biochemistry and Nutrition","volume":"75 1","pages":"78-89"},"PeriodicalIF":2.0000,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11273270/pdf/","citationCount":"0","resultStr":"{\"title\":\"Heat-treated and/or lysozyme-treated <i>Enterococcus faecalis</i> (FK-23) improves the progression of renal disease in a unilateral ischemia-reperfusion injury rat model.\",\"authors\":\"Shigekazu Takemura, Yukiko Minamiyama, Norihiko Ito, Atsushi Yamamoto, Hiroshi Ichikawa, Kanako Nakagawa, Shinya Toyokuni, Mayuko Osada-Oka, Toshikazu Yoshikawa\",\"doi\":\"10.3164/jcbn.24-29\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The prevalence of chronic kidney disease (CKD) is increasing owing to the elderly population. Here, we investigated the effects of heat-treated <i>Enterococcus faecalis</i> (FK-23) and lysozyme-treated FK-23 (LFK) on the progression of CKD in rats. A CKD model was established using male Wistar rats by subjecting them to right nephrectomy (1K), followed by ischemia and reperfusion (IR). FK-23 or LFK was fed <i>ad libitum</i> as a mixed diet after right nephrectomy. Animals subjected to renal ischemia-reperfusion injury (IRI) showed increased plasma creatinine and blood urea nitrogen levels. Furthermore, in the kidneys, collagen accumulation and α-smooth muscle actin, indicative of fibroblast activation and fibrosis-related gene and protein expression, increased 3 weeks after IRI. FK-23 and LFK suppressed the increase in the mRNA levels of some of these genes. The increase in oxidative stress markers, 4-hydroxy-2-nonenal, endothelial nitric oxide synthase, and nitrotyrosine in the kidney, as well as increased plasma uremic toxins after IRI, were also ameliorated by FK-23 and LFK. Metagenomic analysis of fecal samples revealed that gut microbial alteration caused by IRI was also ameliorated by LFK treatment. These results suggest that <i>Enterococcus faecalis</i> ingredients may improve CKD progression by suppressing oxidative stress and correcting the balance of the intestinal microflora.</p>\",\"PeriodicalId\":15429,\"journal\":{\"name\":\"Journal of Clinical Biochemistry and Nutrition\",\"volume\":\"75 1\",\"pages\":\"78-89\"},\"PeriodicalIF\":2.0000,\"publicationDate\":\"2024-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11273270/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Clinical Biochemistry and Nutrition\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.3164/jcbn.24-29\",\"RegionNum\":4,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2024/4/4 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q3\",\"JCRName\":\"NUTRITION & DIETETICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Clinical Biochemistry and Nutrition","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.3164/jcbn.24-29","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/4/4 0:00:00","PubModel":"Epub","JCR":"Q3","JCRName":"NUTRITION & DIETETICS","Score":null,"Total":0}
Heat-treated and/or lysozyme-treated Enterococcus faecalis (FK-23) improves the progression of renal disease in a unilateral ischemia-reperfusion injury rat model.
The prevalence of chronic kidney disease (CKD) is increasing owing to the elderly population. Here, we investigated the effects of heat-treated Enterococcus faecalis (FK-23) and lysozyme-treated FK-23 (LFK) on the progression of CKD in rats. A CKD model was established using male Wistar rats by subjecting them to right nephrectomy (1K), followed by ischemia and reperfusion (IR). FK-23 or LFK was fed ad libitum as a mixed diet after right nephrectomy. Animals subjected to renal ischemia-reperfusion injury (IRI) showed increased plasma creatinine and blood urea nitrogen levels. Furthermore, in the kidneys, collagen accumulation and α-smooth muscle actin, indicative of fibroblast activation and fibrosis-related gene and protein expression, increased 3 weeks after IRI. FK-23 and LFK suppressed the increase in the mRNA levels of some of these genes. The increase in oxidative stress markers, 4-hydroxy-2-nonenal, endothelial nitric oxide synthase, and nitrotyrosine in the kidney, as well as increased plasma uremic toxins after IRI, were also ameliorated by FK-23 and LFK. Metagenomic analysis of fecal samples revealed that gut microbial alteration caused by IRI was also ameliorated by LFK treatment. These results suggest that Enterococcus faecalis ingredients may improve CKD progression by suppressing oxidative stress and correcting the balance of the intestinal microflora.
期刊介绍:
Journal of Clinical Biochemistry and Nutrition (JCBN) is
an international, interdisciplinary publication encompassing
chemical, biochemical, physiological, pathological, toxicological and medical approaches to research on lipid peroxidation, free radicals, oxidative stress and nutrition. The
Journal welcomes original contributions dealing with all
aspects of clinical biochemistry and clinical nutrition
including both in vitro and in vivo studies.