The neuromuscular blocking activity of a new aminoglycoside antibiotic netilmicin sulphate (SCH 20569). 1978

L Albiero, and E Ongini, and L Parravicini

The neuromuscular blocking activity of netilmicin sulphate (Sch 20569), a new aminoglycoside antibiotic, was studied on the rat sciatic nerve-gastrocnemius muscle preparation. The i.v. administration of netilmicin caused a gradual fall, up to complete blockade, of the muscular contraction elicited by nerve stimulation. Conversely, the muscular response to direct stimulation was not affected. The response pattern was similar to that seen with known aminoglycoside antibiotics. The acute toxic effects (LD50 i.p. in mice) of netilmicin were antagonized by pretreatment with neostigmine; this latter partially prevented netilmicin-induced blockade, but was not able to reverse it. Calcium chloride was the only agent effective both to prevent and to reverse the neuromuscular blocking effects of netilmicin.

UI MeSH Term Description Entries
D007275 Injections, Intravenous Injections made into a vein for therapeutic or experimental purposes. Intravenous Injections,Injection, Intravenous,Intravenous Injection
D007928 Lethal Dose 50 The dose amount of poisonous or toxic substance or dose of ionizing radiation required to kill 50% of the tested population. LD50,Dose 50, Lethal
D008297 Male Males
D009132 Muscles Contractile tissue that produces movement in animals. Muscle Tissue,Muscle,Muscle Tissues,Tissue, Muscle,Tissues, Muscle
D009388 Neostigmine A cholinesterase inhibitor used in the treatment of myasthenia gravis and to reverse the effects of muscle relaxants such as gallamine and tubocurarine. Neostigmine, unlike PHYSOSTIGMINE, does not cross the blood-brain barrier. Synstigmin,Neostigmine Bromide,Neostigmine Methylsulfate,Polstigmine,Proserine,Prostigmin,Prostigmine,Prozerin,Syntostigmine,Bromide, Neostigmine,Methylsulfate, Neostigmine
D009466 Neuromuscular Blocking Agents Drugs that interrupt transmission of nerve impulses at the skeletal neuromuscular junction. They can be of two types, competitive, stabilizing blockers (NEUROMUSCULAR NONDEPOLARIZING AGENTS) or noncompetitive, depolarizing agents (NEUROMUSCULAR DEPOLARIZING AGENTS). Both prevent acetylcholine from triggering the muscle contraction and they are used as anesthesia adjuvants, as relaxants during electroshock, in convulsive states, etc. Neuromuscular Blocker,Neuromuscular Blocking Agent,Neuromuscular Blockers,Agent, Neuromuscular Blocking,Agents, Neuromuscular Blocking,Blocker, Neuromuscular,Blockers, Neuromuscular,Blocking Agent, Neuromuscular,Blocking Agents, Neuromuscular
D002122 Calcium Chloride A salt used to replenish calcium levels, as an acid-producing diuretic, and as an antidote for magnesium poisoning. Calcium Chloride Dihydrate,Calcium Chloride, Anhydrous
D005260 Female Females
D005839 Gentamicins A complex of closely related aminoglycosides obtained from MICROMONOSPORA purpurea and related species. They are broad-spectrum antibiotics, but may cause ear and kidney damage. They act to inhibit PROTEIN BIOSYNTHESIS. Gentamicin Sulfate (USP),Gentamycin,G-Myticin,Garamycin,Gentacycol,Gentamicin,Gentamicin Sulfate,Gentamycins,Gentavet,Genticin,G Myticin,GMyticin,Sulfate, Gentamicin
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

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