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http://dx.doi.org/10.1146/annurev.me.17.020166.000553 | DOI Listing |
bioRxiv
December 2024
Department of Pediatrics, Child Health Research Center, University of Virginia School of Medicine, Charlottesville, Virginia.
Background: Juxtaglomerular (JG) cells are sensors that control blood pressure and fluid-electrolyte homeostasis. In response to a decrease in perfusion pressure or changes in the composition and/or volume of the extracellular fluid, JG cells release renin, which initiates an enzymatic cascade that culminates in the production of angiotensin II (Ang II), a potent vasoconstrictor that restores blood pressure and fluid homeostasis. In turn, Ang II exerts a negative feedback on renin release, thus preventing excess circulating renin and the development of hypertension.
View Article and Find Full Text PDFAm J Physiol Renal Physiol
January 2025
Division of Pediatric Nephrology, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, United States.
Renin is crucial for blood pressure regulation and electrolyte balance, and its expressing cells arise from Forkhead box D1-positive (Foxd1) stromal progenitors. However, factors guiding these progenitors toward renin-secreting cell fate remain unclear. Tcf21, a basic helix-loop-helix (bHLH) transcription factor, is essential in kidney development.
View Article and Find Full Text PDFDiagn Cytopathol
February 2025
University of Virginia School of Medicine Inova Campus, Falls Church, Virginia, USA.
Juxtaglomerular cell tumors (JCT) are uncommon renin-secreting tumors of the kidney with cytologic findings of JCT rarely reported. We describe a case of JCT in a 37-year-old man with uncontrolled hypertension that was cured by removal of the tumor via partial nephrectomy. Cytology material was prepared by scraping of the freshly sectioned tumor mass and stained with Diff-Quik and Papanicolaou stains.
View Article and Find Full Text PDFClin Sci (Lond)
December 2024
Department of Pediatrics, University of Virginia School of Medicine, Charlottesville, VA, U.S.A.
BMC Endocr Disord
November 2024
Department of Endocrinology and metabolism, Guangzhou Red Cross Hospital of Jinan University, No. 396, Tong Fu Zhong Rd, Guangzhou, 510220, China.
Background: Adolescents with secondary hyperaldosteronism often present with severe and treatment-resistant hypertension, along with hypokalemia. Renovascular hypertension is frequently caused by renal artery stenosis, primarily due to atherosclerosis and fibromuscular dysplasia (FMD). The presence of an accessory renal artery (ARA) is a common anatomical variation that can contribute to secondary renal vascular hypertension.
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