Antibiotic antibiotic therapy. The antibiotic treatment may select for bacterial strains with physiologically or genetically enhanced capacity to survive high doses of antibiotics. Under certain conditions, it may result in preferential growth of resistant bacteria, while growth of susceptible bacteria is inhibited by the drug. For example, antibacterial selection for strains having previously acquired antibacterial-resistance genes was demonstrated in 1943 by the Luria–Delbrück experiment. Antibiotics such as penicillin and erythromycin, which used to have a high efficacy against many bacterial species and strains, have become less effective, due to the increased resistance of many bacterial strains. Resistance may take the form
Antibiotic resistance in gonorrhea ability of the antibiotic to get into, or stay in the bacterial cell. High level resistance of "N. gonorrhoeae" to tetracyclines was first reported in 1986 with the discovering of the "tetM" determinant. The mechanism of resistance is still unknown. "N. gonorrhoeae" has also shown resistance to the aminoglycoside class of antibiotics. These antibiotics bind to the 16s rRNA of the 30S subunit of the bacterial ribosome, thereby stopping transcription of the bacterial genome. Resistance appears to be acquired through porin-related mechanisms, much like the cephalosporin resistance mechanism. This mechanism would result in the access of the antibiotic to the