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Tetracycline resistance is often due to the acquisition of new genes, which code for energy-dependent efflux of tetracyclines or for a protein that protects bacterial ribosomes from the action of tetracyclines. Furthermore, a limited number of bacteria acquire resistance to tetracyclines by mutations. [2] [5]
Bacteria usually acquire resistance to tetracycline from horizontal transfer of a gene that either encodes an efflux pump or a ribosomal protection protein. Efflux pumps actively eject tetracycline from the cell, preventing the build up of an inhibitory concentration of tetracycline in the cytoplasm . [ 28 ]
Tetracycline (Tc) is a broad family of antibiotics to which bacteria have evolved resistance. Tc normally kills bacteria by binding to the bacterial ribosome and halting protein synthesis. The expression of Tc resistance genes is regulated by the repressor TetR.
[20] [24] This definition excluded substances that kill bacteria but that are not produced by microorganisms (such as gastric juices and hydrogen peroxide). It also excluded synthetic antibacterial compounds such as the sulfonamides. In current usage, the term "antibiotic" is applied to any medication that kills bacteria or inhibits their ...
Antibiotics for acne kill bacteria on the skin. ... Tetracycline (minocycline, doxycycline) Macrolide (erythromycin, azithromycin) Topical Clindamycin. Topical Erythromycin.
Teeth discoloration and same side effects as tetracycline. Not to be given to children and pregnant or lactating women. Similar structure with tetracycline, but five times stronger, big volume distribution and long half-time in the body Tinidazole: Tindamax Fasigyn: Protozoal infections: Upset stomach, bitter taste, and itchiness: Trimethoprim(Bs)
Although antibiotics are vital for destroying the bacteria that cause infections, they also kill beneficial bacteria, such as those that make up the gut microbiome, leading to gut dysbiosis.
Like other agents of the tetracycline class, it either slows or kills bacteria by inhibiting protein production. [1] [4] It kills malaria by targeting a plastid organelle, the apicoplast. [5] [6] Doxycycline was patented in 1957 and came into commercial use in 1967. [7] [8] It is on the World Health Organization's List of Essential Medicines. [9]
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