Aminoglycoside is a word commonly used in medical language. It refers to a class of antibiotics that includes streptomycin and gentamicin. The spelling of aminoglycoside involves a few tricky sounds. The "g" in glycoside is pronounced as a "j" sound, like the "g" in "genre". The "y" in glycoside is pronounced as a long "i" sound, like the "i" in the word "cry". The "c" in aminoglycoside is also pronounced like an "s" sound, making the phonetic transcription of this word "əˌminoʊˈɡlaɪkəsaɪd".
Aminoglycosides, also known as aminocyclitols, are a class of antibiotics that are derived from various species of bacteria, particularly Streptomyces. They are characterized by a complex chemical structure consisting of a central cyclohexane ring linked to various sugars or amino sugars, which gives them their distinct pharmacological properties.
Aminoglycosides are primarily used to combat serious bacterial infections caused by gram-negative organisms. They exert their bactericidal effects by interfering with bacterial protein synthesis, thereby inhibiting the growth and multiplication of the microorganisms. These antibiotics bind irreversibly to the 30S ribosomal subunit, which causes misreading of the genetic code, premature termination of protein synthesis, and ultimately cell death.
Examples of commonly used aminoglycosides include gentamicin, neomycin, tobramycin, and amikacin. They are administered either intravenously or topically, depending on the nature and severity of the infection. Due to their mechanism of action and spectrum of antimicrobial activity, aminoglycosides are often used in combination with other antibiotics to enhance their efficacy.
However, aminoglycosides are known to have several potential side effects, including nephrotoxicity (kidney damage) and ototoxicity (damage to the inner ear leading to hearing loss). Close monitoring of kidney function and therapeutic drug monitoring of blood levels are necessary when using these antibiotics to minimize these adverse effects.
In summary, aminoglycosides are a class of antibiotics that inhibit bacterial protein synthesis and are used to treat serious infections caused by gram-negative bacteria. Their use is accompanied by significant risks, and therefore, appropriate monitoring is essential.
The word "aminoglycoside" is derived from combining two parts: "amino" and "glycoside".
1. "Amino" originates from the French word "amine" and ultimately from the Latin word "ammonia". It refers to a chemical compound containing the amine functional group (NH2), which contains nitrogen and hydrogen atoms.
2. "Glycoside" is derived from the Greek word "glykys" meaning "sweet" and the English word "side". Glycosides are a class of organic compounds consisting of a sugar molecule (glyco-) bonded to a non-sugar molecule (-side).
Therefore, "aminoglycoside" refers to a compound that contains both an amine functional group and a glycoside linkage, illustrating the chemical structure and composition of this class of antibiotics.