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High glucose/ChREBP-induced Hif-1α transcriptional activation in CD4 T cells reduces the risk of diabetic kidney disease by inhibiting the Th1 response.
Diabetologia
January 2025
Kidney Transplantation Center, Department of Urology, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
Aims/hypothesis: Diabetic kidney disease (DKD) features intrarenal inflammation, in which T cells play a part. Hypoxia-inducible factor-1α (HIF-1α), a key transcription factor regulating cellular responses to hypoxia, is reportedly involved in the course of inflammation. The role of HIF-1α in DKD has been investigated, but the conclusions are controversial so far.
View Article and Find Full Text PDFDoes coronary microvascular dysfunction play a role in heart failure with reduced ejection fraction?
J Mol Cell Cardiol
January 2025
Department of Integrative Medical Sciences, Northeast Ohio Medical University. Electronic address:
Heart failure (HF) is a conundrum in that, current therapies only slow the progression of the disease. We posit, if the causal mechanism were targeted, progression of the disease could be stopped and potentially reversed. We hypothesize that insufficient myocardial blood flow (MBF) produces minute areas of ischemia, that lead to an accumulating injury culminating in HF.
View Article and Find Full Text PDFIs Bone Cement Implantation Syndrome Actually Caused by Cement? A Systematic Review of the Literature Using the Bradford-Hill Criteria.
J Arthroplasty
January 2025
Department of Orthopaedic Surgery, University of Virginia, 2280 Ivy Road, Charlottesville, VA, 22903, United States of America.
Introduction: Debate surrounding the use of cemented femoral components in hip arthroplasty persists. A proposed risk of cement fixation is bone cement implantation syndrome (BCIS), a phenomenon characterized by intraoperative hypotension, hypoxia, and/or cardiovascular collapse. The purpose of this study was to analyze the literature to determine if enough evidence exists to support a causal relationship between cement and BCIS.
View Article and Find Full Text PDFThe dynamic duo: Decoding the roles of hypoxia-inducible factors in neonatal hypoxic-ischemic brain injury.
Exp Neurol
January 2025
Department of Pediatrics, University of Nebraska Medical Center, Omaha, NE, United States of America; Child Health Research Institute, Omaha, NE, United States of America; Division of Neonatology, Children's Nebraska, Omaha, NE, United States of America. Electronic address:
Neonatal hypoxic-ischemic encephalopathy (HIE) results in considerable mortality and neurodevelopmental disability, with a particularly high disease burden in low- and middle-income countries. Improved understanding of the pathophysiology underlying this injury could allow for improved diagnostic and therapeutic options. Specifically, hypoxia-inducible factors (HIF-1α and HIF-2α) likely play a key role, but that role is complex and remains understudied.
View Article and Find Full Text PDFProtein kinase C iota (PKCι) and pVHL are both needed for lysosomal degradation of α5 integrin in renal carcinoma cells.
Mol Biol Rep
January 2025
Department of Biology, Adelphi University, One South Avenue, P.O. Box 701, Garden City, NY, 11530-0701, USA.
Background: von Hippel-Lindau (VHL) hereditary cancer syndrome is caused by mutations in the VHL tumor suppressor gene and is characterized by a predisposition to form various types of tumors, including renal cell carcinomas, hemangioblastomas, and pheochromocytomas. The protein products of the VHL gene, pVHL, are part of an ubiquitin ligase complex that tags hypoxia inducible factor alpha (HIF-α) for proteosomal degradation. pVHL has also been reported to bind to atypical protein kinase C (aPKC).
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