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The CcdA/CcdB Type II Toxin-antitoxin system is one example of the bacterial toxin-antitoxin (TA) systems that encode two proteins, one a potent inhibitor of cell proliferation (toxin) and the other its specific antidote (antitoxin). These systems preferentially guarantee growth of plasmid -carrying daughter cells in a bacterial population by ...
An antidote is a substance that can counteract a form of poisoning. [ 1 ] The term ultimately derives from the Greek term φάρμακον ἀντίδοτον (pharmakon antidoton), " (medicine) given as a remedy". Antidotes for anticoagulants are sometimes referred to as reversal agents. [ 2 ]
Strychnos toxifera, the Strychnos species which is the principal source of 'calabash curare' and its main active constituent, the alkaloid toxiferine. Curare (/ kʊˈrɑːri / or / kjʊˈrɑːri /; kuu-RAH-ree or kyuu-RAH-ree) is a common name for various alkaloid arrow poisons originating from plant extracts.
The primary antidote to brodifacoum poisoning is immediate administration of vitamin K 1 (dosage for humans: initially slow intravenous injections of 10–25 mg repeated at 3–6 hours until normalisation of the prothrombin time; then 10 mg orally four times daily as a "maintenance dose"). It is an extremely effective antidote, provided the ...
Pralidoxime. Pralidoxime (2-pyridine aldoxime methyl chloride) or 2-PAM, usually as the chloride or iodide salts, belongs to a family of compounds called oximes that bind to organophosphate -inactivated acetylcholinesterase. [ 1 ] It is used to treat organophosphate poisoning [ 2 ] in conjunction with atropine and either diazepam or midazolam ...
Polychlorinated dibenzo -p- dioxins (PCDDs), or simply dioxins. PCDDs are derivatives of dibenzo -p- dioxin. There are 75 PCDD congeners, differing in the number and location of chlorine atoms, and 7 of them are specifically toxic, the most toxic being 2,3,7,8-tetrachlorodibenzodioxin (TCDD). Polychlorinated dibenzofurans (PCDFs), or furans.
Cyanide is a potent cytochrome c oxidase (COX, a.k.a. Complex IV) inhibitor, causing asphyxiation of cells. As such, cyanide poisoning is a form of histotoxic hypoxia, because it interferes with the ability of cells to take or use oxygen via oxidative phosphorylation. [ 25 ]: 1475. Specifically, cyanide binds to the heme a3-CuB binuclear center ...
Aconitine was the poison used by George Henry Lamson in 1881 to murder his brother-in-law in order to secure an inheritance. Lamson had learned about aconitine as a medical student from professor Robert Christison , who had taught that it was undetectable—but forensic science had improved since Lamson's student days.