title: Susceptibilities of Neisseria gonorrhoeae to the glycylcyclines.
abstract: To assess the activities of two glycylcyclines, N,N-dimethylglycylamido (DMG) derivatives of minocycline (MINO) and 6-demethyl-6-deoxytetracycline (DMDOT), 203 gonococcal isolates recovered at six sexually transmitted disease clinics in the western United States were evaluated. Antimicrobial susceptibilities to tetracycline HCl, doxycycline, MINO, DMG-DMDOT, and DMG-MINO were determined by agar dilution tests. DMG-DMDOT and DMG-MINO were more active than tetracycline HCl, doxycycline, or MINO regardless of the presence of Tet M or of chromosomal mutations mediating tetracycline resistance (P < 0.001).
mesh_terms: D006069:Gonorrhea / Q000382:microbiology; D006801:Humans; D008826:Microbial Sensitivity Tests; D008911:Minocycline / Q000031:analogs & derivatives / Q000494:pharmacology; D009344:Neisseria gonorrhoeae / Q000187:drug effects*; D013753:Tetracycline Resistance; D013754:Tetracyclines / Q000494:pharmacology*
chemical_list: D013754:Tetracyclines; C085305:9-(N,N-dimethylglycylamido)minocycline; C085306:6-demethyl-9-(N,N-dimethylglycylamido)-6-deoxytetracycline; D008911:Minocycline