Necrobiosis lipoidica in diabetics has been considered to be a cutaneous manifestation of diabetic microangiopathy. Seven diabetic patients with necrobiotic ulcers of recent onset that healed after administration of acetylsalicylic acid and dipyridamole had elevated thromboxane levels. Healing was associated with depression of the elevated thromboxane levels in all seven patients.
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http://dx.doi.org/10.1111/j.1365-4362.1989.tb02465.x | DOI Listing |
Eur J Med Chem
January 2025
Department of Radiology and Imaging Sciences, Emory University, 1364 Clifton Road, Atlanta, GA, 30322, United States. Electronic address:
Monoacylglycerol lipase (MAGL) is a 33 kDa cytosolic serine hydrolase that is widely distributed in the central nervous system and peripheral tissues. MAGL hydrolyzes monoacylglycerols into fatty acids and glycerol, playing a crucial role in endocannabinoid degradation. Inhibition of MAGL in the brain elevates levels of 2-arachidonoylglycerol and leads to decreased pro-inflammatory prostaglandin and thromboxane production.
View Article and Find Full Text PDFCardiovasc Res
January 2025
State Key Laboratory of Cardiovascular Disease, Clinical Pharmacology Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China.
Aims: The therapeutic efficacy of coronary revascularization is compromised by myocardial ischemia-reperfusion (MI/R) injury. Higher levels of circulating arachidonic acid (AA) are reportedly associated with lower risk of cardiovascular disease. The cyclooxygenase (COX) pathway metabolizes AA into prostaglandins (PGs) and the platelet-activating thromboxane A2 (TXA2), which is inhibited by aspirin.
View Article and Find Full Text PDFJ Am Coll Cardiol
January 2025
Division of Biostatistics and Health Services Research, Department of Population and Quantitative Health Sciences, University of Massachusetts Chan Medical School, Worcester, Massachusetts, USA.
Background: Systemic thromboxane A generation, which is readily assessed by quantifying thromboxane B metabolites (TXB-M) in the urine, is associated with impaired cardiac performance and mortality in aspirin (ASA) users with heart failure (HF).
Objectives: This study sought to determine the association of urinary TXB-M with the risk of developing HF in individuals without prior history of HF and with normal left ventricular function irrespective of ASA use.
Methods: Urine TXB-M were measured by immunoassay and adjusted to urine concentration and renal function (TXB-M) in 2,611 Framingham Heart Study participants (54.
Antioxidants (Basel)
December 2024
Department of Biochemistry and Molecular Biology, School of Medicine, Complutense University of Madrid, Avda. Complutense, s/n, 28040 Madrid, Spain.
Alterations in the gastric mucosal barrier, one of whose fundamental components is phosphatidylcholine (PC), may play an important role in the pathophysiology of erosive gastritis secondary to sepsis. Pentoxifylline (PTX) has been shown to reduce tissue damage in various experimental models of sepsis. The aim of this study was to investigate the effect of PTX on gastric mucosa PC synthesis, leukocyte infiltration, arachidonic acid-related metabolites, inflammation, oxidative stress, NO, CO, and somatostatin in a rat model of LPS-induced sepsis.
View Article and Find Full Text PDFAm J Physiol Heart Circ Physiol
December 2024
Department of Physiology.
Endothelial cell-selective adhesion molecule (ESAM) is a member of tight junction molecules, highly abundant in the heart and the lung, and plays a role in regulating endothelial cell permeability. We previously reported that mice with genetic ESAM deficiency (ESAM) exhibit coronary microvascular dysfunction leading to the development of left ventricular diastolic dysfunction. Here, we hypothesize that ESAM mice display impairments in the pulmonary vasculature, affecting the overall pulmonary vascular resistance (PVR).
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