English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Non-steroidal anti-inflammatory drugs (NSAIDs) are widely used to relieve physical and mental pain, and to improve patients' quality of life. However, stomach irritation is a major side effect. Most NSAIDs inhibit cyclooxygenases (COXs), and inhibition of COX-1 on the stomach mucous membrane is thought to be responsible for the gastric disturb- ance. Consequently, development efforts have focused on COX-2-selective inhibitors, while COX-1-selective inhibitors have been rather neglected. Subsequently, however, it was shown that inhibition of either COX-1 or COX-2 alone does not induce gastric damage. Therefore, we have developed the COX-1-selective inhibitor N-(4-aminophenyl)-4-trifluoromethylbenzamide (TFAP), which shows analgesic activity without causing gastric damage. However, metabolism of TFAP generates a colored metabolite, resulting in red-purple coloration of urine after administration. In addition, the analgesic activity of TFAP is weaker than that of indomethacin. Thus, we designed a series of new COX-1-selective inhibitors, the 5-amino-2-ethoxy-N-(substituted)benzamide (ABEX) series, in order to avoid formation of the colored metabolite by modifying the diaminopyridine skeleton. As a result of structural modification and in vitro and in vivo testing of compounds in the ABEX series, we found a novel COX-1-selective inhibitor, 5-amino-2-ethoxy-N-(3-trifluoromethylphenyl)benzamide (ABEX-3TF), which shows better analgesic activity than indomethacin, and does not cause coloration of urine.

Significance and Creation of Novel Cyclooxygenase-1 (COX-1) Selective Inhibitors