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Dioscin pretreatment ameliorates ferroptosis in cardiomyocytes after myocardial infarction via inhibiting endoplasmic reticulum stress.
Mol Med
January 2025
The First People's Hospital of Lin'an District, No. 360, Yikang Street, Jinnan Subdistrict, Lin'an District, Hangzhou, Zhejiang, 311300, China.
Background: Myocardial infarction (MI) remains a leading cause of mortality globally, often resulting in irreversible damage to cardiomyocytes. Ferroptosis, a recently identified form of regulated cell death driven by iron-dependent lipid peroxidation, has emerged as a significant contributor to post-MI cardiac injury. The endoplasmic reticulum (ER) stress response has been implicated in exacerbating ferroptosis.
View Article and Find Full Text PDFNitrite reverses nitroglycerin tolerance via repletion of a nitrodilator-activated nitric oxide store in vascular smooth muscle cells.
Redox Biol
January 2025
Department of Pediatrics, Division of Neonatology, Loma Linda University School of Medicine, Loma Linda, CA, USA; Lawrence D. Longo, MD Center for Perinatal Biology, Loma Linda University School of Medicine, Loma Linda, CA, USA. Electronic address:
Repeated use of nitroglycerin results in a loss of its vasodilatory efficacy which limits its clinical use for the treatment of angina pectoris. This tolerance phenomenon is a defining characteristic of all compounds classified as nitrodilators, which includes NTG as well as S-nitrosothiols and dinitrosyl iron complexes. These compounds vasodilate via activation of soluble guanylate cyclase, although they do not release requisite amounts of free nitric oxide (NO) and some do not even cross the plasma membrane.
View Article and Find Full Text PDFRationale and design of the FAIR-HF2-DZHK05 trial: Ferric carboxymaltose assessment of morbidity and mortality in patients with iron deficiency and chronic heart failure.
Eur J Heart Fail
January 2025
Department of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Aims: While it is widely accepted that intravenous (IV) iron improves functional capacity, symptoms, and cardiovascular outcomes in patients with heart failure (HF) with reduced ejection fraction (HFrEF) diagnosed with iron deficiency (ID), three recently published cardiovascular outcome trials (AFFIRM-AHF, IRONMAN and HEART-FID) of IV iron supplementation in HF failed to demonstrate a significant benefit on their respective primary endpoints. Dosing of IV iron after the initial correction of baseline ID - by design or as a result of trial circumstances - was relatively low (i.e.
View Article and Find Full Text PDFGlycocalyx disruption, endothelial dysfunction and vascular remodeling as underlying mechanisms and treatment targets of chronic venous disease.
Int Angiol
December 2024
Vascular Surgery Research Laboratories, Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA -
The glycocalyx is an essential structural and functional component of endothelial cells. Extensive hemodynamic changes cause endothelial glycocalyx disruption and vascular dysfunction, leading to multiple arterial and venous disorders. Chronic venous disease (CVD) is a common disorder of the lower extremities with major health and socio-economic implications, but complex pathophysiology.
View Article and Find Full Text PDFEssential Thrombocythemia: A Review.
JAMA
January 2025
CRIMM, Center Research and Innovation of Myeloproliferative Neoplasms, University of Florence, AOU Careggi, Florence, Italy.
Importance: Essential thrombocythemia, a clonal myeloproliferative neoplasm with excessive platelet production, is associated with an increased risk of thrombosis and bleeding. The annual incidence rate of essential thrombocythemia in the US is 1.5/100 000 persons.
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