Aspirin inhibits the production of proangiogenic 15(S)-HETE by platelet cyclooxygenase-1.
Regular consumption of low‐dose aspirin reduces the occurrence of colorectal, esophageal, stomach, and gastrointestinal cancers. The underlying mechanism is unknown but may be linked to inhibition of angiogenesis.
Rauzi F+6 more
europepmc +2 more sources
Cyclooxygenase-1, not cyclooxygenase-2, is responsible for physiological production of prostacyclin in the cardiovascular system [PDF]
Prostacyclin is an antithrombotic hormone produced by the endothelium, whose production is dependent on cyclooxygenase (COX) enzymes of which two isoforms exist. It is widely believed that COX-2 drives prostacyclin production and that this explains the cardiovascular toxicity associated with COX-2 inhibition, yet the evidence for this relies on ...
Malak Al-Yamani+11 more
openaire +5 more sources
Spatiotemporally distinct roles of cyclooxygenase-1 and cyclooxygenase-2 at fetomaternal interface in mice. [PDF]
Embryo implantation is crucial for ensuring a successful pregnancy outcome and subsequent child health. The intrauterine environment during the peri-implantation period shows drastic changes in gene expression and cellular metabolism in response to hormonal stimuli and reciprocal communication with embryos.
Aikawa S+20 more
europepmc +3 more sources
Expression of cyclooxygenase-1 and cyclooxygenase-2 in normal and pathological human oral mucosa.
Cyclooxigenase (COX) is the rate-limiting enzyme for the conversion of arachidonic acid (AA) to prostaglandins (PGs). Two isoforms of COX have been identified: COX-1 is constitutively expressed in many cells and is involved in cell homeostasis ...
Francesco Burruano+7 more
doaj +7 more sources
High cyclooxygenase 1 (COX-1) and cyclooxygenase 2 (COX-2) contents in mouse lung tumors [PDF]
Mouse lung tumorigenesis is a convenient model for examining all stages of lung adenocarcinoma (AC) progression. Because enhanced cyclooxygenase 2 (COX-2) expression has been observed in advanced human AC, we investigated the intracellular concentrations of the two cyclooxygenases, cyclooxygenase 1 (COX-1) and COX-2, at different times after carcinogen
Alison K. Bauer+2 more
openalex +4 more sources
Immunoexpression of cyclooxygenase-1 and -2 in ulcerative colitis [PDF]
Ulcerative colitis (UC) is a disease of the colon and rectum characterized by a nonspecific chronic inflammation mediated by the concerted response of cellular and humoral events.
A.P.R. Paiotti+5 more
doaj +7 more sources
Expression of cyclooxygenase-1 and 2 in chronic tonsillitis
Objectives: Prostaglandins are critical mediators of inflammation and affect both humoral and cell-mediated immune responses. Recent findings show that T and B cells express COX-2 upon activation. The purpose of this study is to investigate the potential
Dilek Fatma+4 more
doaj +4 more sources
Comparison of Cyclooxygenase-1 Crystal Structures: Cross-Talk between Monomers Comprising Cyclooxygenase-1 Homodimers, [PDF]
Prostaglandin endoperoxide H synthases (PGHSs)-1 and -2 (also called cyclooxygenases (COXs)-1 and -2) catalyze the committed step in prostaglandin biosynthesis. Both isoforms are targets of nonsteroidal antiinflammatory drugs (NSAIDs). PGHSs are homodimers that exhibit half-of-sites COX activity; moreover, some NSAIDs cause enzyme inhibition by binding
Ranjinder S. Sidhu+3 more
openaire +4 more sources
The role of cyclooxygenase-2 (COX-2) and inflammatory markers in the progress of Alport syndrome in Egyptian children [PDF]
Background Chronic inflammation and its control are crucial to the responses of glomerular and renal tubular cells. This contributes to the pathogenic mechanisms and advancement of the disease in Alport syndrome.
Moushira Zaki+8 more
doaj +2 more sources
Platelet inhibition by low-dose aspirin is not influenced by body mass or weight
Aspirin’s clinical efficacy may be influenced by body weight and mass. Although inadequate platelet inhibition by aspirin is suggested as responsible, evidence for this in non-diabetic patients is sparse.
Sean P. Heffron+4 more
doaj +1 more source