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BACKGROUND AND OBJECTIVES: Understanding the current status of and temporal trends of stroke epidemiology by age, race, and stroke subtype is critical to evaluate past prevention efforts and to plan future interventions to eliminate existing inequities. We investigated trends in stroke incidence and case fatality over a 22-year time period. METHODS: In this population-based stroke surveillance study, all cases of stroke in acute care hospitals within a 5-county population of southern Ohio/northern Kentucky in adults aged ≥20 years were ascertained during a full year every 5 years from 1993 to 2015...

BACKGROUND: Dysphagia after stroke is common and can impact morbidity and death. The purpose of this population-based study was to determine specific epidemiological and health risk factors that impact development of dysphagia after acute stroke. METHODS AND RESULTS: Ischemic and hemorrhagic stroke cases from 2010 and 2015 were identified via chart review from the GCNKSS (Greater Cincinnati Northern Kentucky Stroke Study), a representative sample of ≈1.3 million adults from southwestern Ohio and northern Kentucky...

BACKGROUND: Rab35 is a member of a GTPase family of endocytic trafficking proteins. Studies in cell lines have indicated that Rab35 participates in cell adhesion, polarity, cytokinesis, and primary cilia length and composition. Additionally, sea urchin Rab35 regulates actin organization and is required for gastrulation. In mice, loss of Rab35 in the CNS disrupts hippocampal development and neuronal organization. Outside of the CNS, the functions of mammalian Rab35 in vivo are unknown...

BACKGROUND: The synthetic tetra-peptide SS-31 shows promise in alleviating mitochondrial dysfunction associated with common diseases. However, the precise pharmacological basis of its mitoprotective effects remains unknown. METHODS: To uncover the biological targets of SS-31, we performed a genome-scale CRISPR screen in HK-2 cells, a cell culture model where SS-31 mitigates cisplatin-associated cell death and mitochondrial dysfunction. The identified hit candidate gene was functionally validated using knockout cell lines, siRNA mediated downregulation, and tubular epithelial specific conditional knockout mice...

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BACKGROUND: Older adults with kidney failure face preference-sensitive decisions regarding dialysis initiation. Despite recommendations, few older patients with kidney failure experience shared decision-making. Clinician uncertainty about the degree to which older patients prefer to engage in decision-making remains a key barrier. METHODS: Mixed-methods explanatory, longitudinal, sequential design at 4 diverse U.S. centers with patients (English-fluent, aged ≥70 years, CKD stages 4-5, nondialysis) from 2018 to 2020...

BACKGROUND: The kidney is involved in almost 100% of cases of AA amyloidosis, a rare disease caused by persistent inflammation with long overall survival but frequent progression to end-stage kidney failure . Identification of patients with advanced disease at diagnosis is difficult, given the absence of validated staging systems. METHODS: Newly diagnosed patients with AA amyloidosis from the Pavia (n=233, testing cohort) and Heidelberg (n=243, validation cohort) centers were included in the study...

SIGNIFICANCE STATEMENT: The renal lymphatic vasculature and the lymphatic endothelial cells that make up this network play important immunomodulatory roles during inflammation. How lymphatics respond to AKI may affect AKI outcomes. The authors used single-cell RNA sequencing to characterize mouse renal lymphatic endothelial cells in quiescent and cisplatin-injured kidneys. lymphatic endothelial cell gene expression changes were confirmed in ischemia-reperfusion injury and in cultured lymphatic endothelial cells, validating renal lymphatic endothelial cells single-cell RNA sequencing data...

BACKGROUND: Renal fibrosis is a common pathological endpoint in CKD that is challenging to reverse, and myofibroblasts are responsible for the accumulation of a fibrillar collagen-rich extracellular matrix (ECM). Recent studies have unveiled myofibroblasts diversity in terms of proliferative and fibrotic characteristics, which are linked to different metabolic states. We previously demonstrated the regulation of ECM genes and tissue fibrosis by WWP2, a multifunctional E3 ubiquitin-protein ligase...

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BACKGROUND: Lifelong kidney function relies on the complement of nephrons generated during mammalian development from a mesenchymal nephron progenitor cell population. Low nephron endowment confers increased susceptibility to chronic kidney disease. Reduced nephron numbers in the popular Six2TGC transgenic mouse line may be due to disruption of a regulatory gene at the integration site and/or ectopic expression of a gene(s) contained within the transgene. METHODS: Targeted locus amplification (TLA) was performed to identify the integration site of the Six2TGC transgene...

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