{
  "id": 4057833,
  "title": "Txn1 mutant rats: A valuable translational model of chronic kidney disease",
  "url": "https://urgent.news/2026/08/28/txn1-mutant-rats-a-valuable-translational-model-of-chronic-kidney",
  "topic": "science",
  "section": "Science",
  "published": "2026-08-28T23:20:02.000Z",
  "source": {
    "name": "Medical Xpress",
    "slug": "medical-xpress",
    "url": "https://medicalxpress.com/news/2026-08-txn1-mutant-rats-valuable-chronic.html"
  },
  "original_language": "en",
  "account": "Txn1 mutant rats serve as a valuable translational model for chronic kidney disease (CKD). The Txn1-F54L mutation, originally discovered for nervous system research, results in reduced Trx activity, which in turn causes CKD in rats. These rats exhibit CKD symptoms such as elevated blood urea nitrogen, hypoalbuminemia, hypercholesterolemia, hypertension, and arterial medial sclerosis. Histological examination reveals extensive tubular injury, interstitial fibrosis, and glomerulosclerosis, typical of advanced CKD. Transcriptomic analysis shows altered expression of 3,418 genes, with enrichment in pathways related to inflammation, fibrosis, and immune activation, while genes involved in mitochondrial function and energy production are suppressed. The study identifies upregulation of multiple regulated cell death pathways, including apoptosis, necroptosis, and pyroptosis. Additionally, there is a significant reduction in mitochondrial number and abnormal mitochondrial morphology in mutant rats. The findings suggest that chronic Trx deficiency compromises mitochondrial integrity, leading to cellular energy depletion and a cascade of events involving inflammation, cell death, and fibrosis. This novel rat model provides insights into CKD pathogenesis and highlights potential therapeutic targets, such as restoring redox balance, protecting mitochondria, and modulating cell death pathways.",
  "summary": "Chronic kidney disease (CKD) is a major health burden affecting approximately one in 10 adults globally. Even with improved treatments, many patients continue to experience worsening kidney function, resulting in the need for dialysis or transplantation. Oxidative stress and mitochondrial dysfunction have long been suspected to contribute to CKD, but direct evidence linking these processes to…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}