We examined the role of cyclooxygenase-2 (COX-2) in the late phase of ischemic preconditioning (PC). A total of 176 conscious rabbits were used. Ischemic PC (six cycles of 4-min coronary occlusions/4-min reperfusions) resulted in a rapid increase in myocardial COX-2 mRNA levels (+231 +/- 64% at 1 h; RNase protection assay) followed 24 h later by an increase in COX-2 protein expression (+216 +/-...

The discovery of two isoforms of the cyclooxygenase enzyme, COX-1 and COX-2, and the development of COX-2-specific inhibitors as anti-inflammatories and analgesics have offered great promise that the therapeutic benefits of NSAIDs could be optimized through inhibition of COX-2, while minimizing their adverse side effect profile associated with inhibition of COX-1. While COX-2 specific inhibitor...

OBJECT Meningiomas are the second most common symptomatic primary central nervous system tumor in adults. Findings of epidemiological studies link meningiomas with a history of head trauma, indicating a causal relationship between the inflammatory response and meningioma tumorigenesis. Cyclooxygenase-2 (COX-2), an inducible inflammatory enzyme, converts arachidonic acid to prostaglandins, which...

Ocular infection with herpes simplex virus (HSV) results in a blinding immunoinflammatory stromal keratitis (SK) lesion. Early preclinical events include polymorphonuclear neutrophil (PMN) infiltration and neovascularization in the corneal stroma. We demonstrate here that HSV infection of the cornea results in the upregulation of the cyclooxygenase 2 (COX-2) enzyme. Early after infection, COX-2...

Non-steroidal anti-inflamatories (NSAIDs) are widely used in the treatment of post-surgery pain1, osteoarthritis2, rheumatoid arthritis3 and muscle-skeletal pain4,5, in different conditions. Major effects are: anti-inflammatory, analgesic, and antipyretic6. Generally speaking, such effects are associated to the inhibition of the enzyme cyclooxygenase (COX). COX catalyzes the transformation of a...

Abstract Many hangover cure products containing natural ingredients that are also effective against alcohol-related liver damage or improve function have recently become available. In addition to curing damage, antioxidants, anti-inflammatory agents, and blood ethanol reduction aids emerging as relief targets reduce symptoms. We investigated the ameliorating effect of WON-21 herbal medicinal by...

BACKGROUND AND AIMS Constitutive cyclooxygenase (COX) 1 is believed to mediate prostaglandin dependent gastric protection. However, gastric mucosa contains cells capable of expressing inducible COX-2. We therefore investigated COX-1 and COX-2 expression, localisation, and activity in normal and abnormal human gastric mucosa. METHODS COX-1 and COX-2 distribution was investigated by light and e...

BACKGROUND AND OBJECTIVES Nonsteroidal Anti-inflammatory Drugs (NSAIDs) are among the most widely prescribed drugs, including for Anesthesiology. This review aimed at discussing some current cycloxygenase biochemical aspects, which have provided the basis for the development of new analgesic and anti-inflammatory drugs. CONTENTS These drugs primarily act by inhibiting cycloxygenase (COX), whi...