Mechanism and treatment methods of cyanide poisoning

Abstract

A powerful toxin, cyanide can be ingested accidentally or on purpose. By attaching to cytochrome oxidase in mitochondria, it prevents ATP synthesis and forces cells into anaerobic metabolism even in the presence of sufficient oxygen. Headache, lightheadedness, and dyspnea are the initial signs of cyanide poisoning, which can escalate to seizures and unconsciousness. Sodium nitrite, sodium thiosulfate, and hydroxocobalamin are effective therapies for cyanide poisoning. Research has demonstrated its effectiveness in human and animal models. However, more studies are needed to confirm its efficiency in various cyanide exposure scenarios. While sodium thiosulfate transforms cyanide into the less poisonous thiocyanate, facilitating detoxification, sodium nitrite causes the synthesis of methemoglobin, which sequesters cyanide from cytochrome oxidase. Studies on animals show that intramuscular injections of sodium thiosulfate and sodium nitrite can effectively reverse the effects of cyanide toxicity and improve lifespan. These countermeasures are essential for both treating and averting the deadly consequences of acute cyanide poisoning. This research will discuss the mechanism of cyanide poisoning and its treatment methods.