Hypertension is an independent risk factor for atherosclerotic disease. It has been proposed that the atherogenic potential of hypertension is due to the development of a proinflammatory state within the arterial wall that is, at least in part, a result of the generation of reactive oxygen species. This article proposes that mechanical deformation of the arterial wall is a critical stimulus in this scheme. Data is reviewed that demonstrate that mechanical deformation of the arterial wall stimulates the generation of reactive oxygen species and subsequently results in the upregulation of redox-sensitive proinflammatory gene products.
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http://dx.doi.org/10.1097/00000441-199809000-00002 | DOI Listing |
JPRAS Open
March 2025
Plastic and Reconstructive Surgery Department, Hospital Clinic of Barcelona, Barcelona, Spain.
Introduction: Different vessel diameters may challenge the completion of a high-quality anastomosis in microsurgery. In clinical practice, discrepancies in vessel size are commonly encountered. These variations can range from small to moderate, and microsurgeons typically employ established techniques, such as dilating the smaller vessel or creating an oblique cut in its wall, to address these differences.
View Article and Find Full Text PDFACS Biomater Sci Eng
January 2025
Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario M5S 3E3, Canada.
Restenosis remains a long-standing limitation to effectively maintain functional blood flow after percutaneous transluminal angioplasty (PTA). While the use of drug-coated balloons (DCBs) containing antiproliferative drugs has improved patient outcomes, limited tissue transfer and poor therapeutic targeting capabilities contribute to off-target cytotoxicity, precluding adequate endothelial repair. In this work, a DCB system was designed and tested to achieve defined arterial delivery of an antirestenosis therapeutic candidate, cadherin-2 (N-cadherin) mimetic peptides (NCad), shown to selectively inhibit smooth muscle cell migration and limit intimal thickening in early animal PTA models.
View Article and Find Full Text PDFArterial compliance (AC) is an important cardiovascular parameter characterizing mechanical properties of arteries. AC is significantly influenced by arterial wall structure and vasomotion, and it markedly influences cardiac load. A new method, based on a two-element Windkessel model, has been recently proposed for estimating AC as the ratio of the time constant T of the diastolic blood pressure decay and peripheral vascular resistance derived from clinically available stroke volume measurements and selected peripheral blood pressure parameters which are less prone to peripheral distortions.
View Article and Find Full Text PDFAm J Case Rep
January 2025
Vascular and Endovascular Surgery, Department of Cardiovascular Surgery, Mayo Clinic Health System, Eau Claire, WI, USA.
BACKGROUND The bacterial organism Capnocytophaga canimorsus is an oral commensal of cats and dogs and can cause life-threatening infections like mycotic aneurysm, meningitis, and sepsis. Mycotic aneurysms occur when microbial infections cause arterial wall degeneration. Difficulty in diagnosing Capnocytophaga canimorsus infection can occur due to the bacteria's fastidious nature and laboratory testing limitations, contributing to the infection's high morbidity and mortality.
View Article and Find Full Text PDFSci Rep
January 2025
Cardiology Department, Affiliated Hospital of Jiangxi University of Chinese Medicine, Nanchang, China.
Atherosclerosis (AS) is a chronic vascular disease characterized by inflammation of the arterial wall and the formation of cholesterol plaques. Hashimoto's thyroiditis (HT) is an autoimmune disorder marked by chronic inflammation and destruction of thyroid tissue. Although previous studies have identified common risk factors between AS and HT, the specific etiology and pathogenic mechanisms underlying these associations remain unclear.
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