Sir, The gastric (ulcer-producing) adverse relationship of conventional non-steroidal antiinflammatory drugs (NSAIDs) is now well recognized. NSAIDs non-specifically inhibit the cyclooxygenase enzymes (COX-1 and COX-2) leading to loss of gastric mucosal integrity and at the same time producing the desired antiinflammatory effect. It has been proposed that selective COX-2 inhibitors (coxibs) are...

In 1971, Vane showed that the analgesic action of traditional NSAIDs relies on inhibition of the cyclo-oxygenase (COX) enzyme, which in turn results in reduced synthesis of proalgesic prostaglandins. Two decades later COX was shown to exist as two distinct isoforms. The constitutive isoform COX-1, supports the beneficial homeostatic functions whereas the inducible isoform, COX-2 becomes up regu...

BACKGROUND Adverse events associated with the use of non-steroidal anti-inflammatory drugs (NSAIDs) have led to the publication of Canadian prescription guidelines. Prescription practices following the publication of these guidelines and the introduction of COX-2 inhibitors in the Quebec formulary of reimbursed medications remain largely unexplored. OBJECTIVES To compare the prevalence of con...

Objective(s): Combination chemotherapy is a rational strategy to increase patient response and tolerability and to decrease adverse effects and drug resistance. Recently, the use of non-steroidal anti-inflammatory drugs (NSAIDs) has been reported to be associated with reduction in occurrence of a variety of cancers including lung cancer. On the other hand, growing evidences suggest that deuteri...

Nonsteroidal anti-inflammatory drugs (NSAID) inhibit cyclooxygenase (COX) enzymes, which exist in at least two isoforms, COX-1 and COX-2. Aspirin and older agents in this class are nonselective inhibitors of both COX-1 and COX-2. Newer agents termed "coxibs" are selective inhibitors of COX-2. Among the NSAID, only aspirin has been proven to significantly reduce cardiovascular risk, primarily th...

Intestinal smooth muscle plays a major role in the repair of injured intestine and contributes to the prostanoid pool during intestinal inflammatory states. Cyclooxygenase (COX), which catalyzes the conversion of arachidonic acid to prostanoids exists in two isoforms, COX-1 and COX-2. The purpose of this study was to determine the relative contributions of COX-1 and COX-2 in the production of p...

The role of COXs/PGs (cyclo-oxygenases/prostaglandins) in diabetic kidneys remains unclear. NSAIDs (non-steroidal anti-inflammatory drugs) that inhibit COXs/PGs are known for their renal toxicity, and COX-2 inhibitors worsen cardiovascular outcomes in susceptible individuals. Given the renal controversies concerning COX-2 inhibitors, we compared the effect of chronic NSAIDs (non-selective, ibup...

Non-steroidal anti-inflammatory drugs and COX-2 inhibitors bind to COX-2 and provide relief from the symptoms of pain and inflammation. However, they lack anti-thrombotic activity and hence lead to cardiovascular and renal liabilities apart from gastrointestinal irritation. J Martel-Pelletier et al. reported that dual 5-LOX/COX inhibitors are potential new drugs to treat inflammation. They act ...

The usefulness of non-steroidal anti-inflammatory drugs (NSAIDs) is hampered by their gastrointestinal side effects. Non-selective cyclooxygenases inhibitors interfere with both COX-1 and COX-2 isozymes. Since COX-1 mediates cytoprotection of gastric mucosa, its inhibition leads to the undesirable side effects. On the other hand, COX-2 is undetectable in normal tissues and selectively induced b...