Cyanide poisoning causes cellular asphyxiation differently than mechanical suffocation.

the verdict

SUPPORTED

the evidence backs this

Recorded sources

2 sources for · 0 against

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Cyanide poisoning leads to cellular asphyxiation specifically through the biochemical inhibition of cytochrome c oxidase (Complex IV) in the electron transport chain, which differs fundamentally from mechanical suffocation where oxygen is physically barred from reaching the tissues.

The analysis

The provided papers consistently demonstrate that cyanide causes cellular hypoxia and asphyxiation through the specific inhibition of cytochrome c oxidase (Complex IV) within the mitochondrial respiratory chain. This biochemical disruption of oxidative phosphorylation is distinct from mechanical suffocation, which physically restricts oxygen supply. Papers [2] and [4] directly support this biochemical mechanism, providing sufficient evidence to validate the claim.

Evidence for · 2

Alteration in Cerebral Metabolism in a Rodent Model of Acute Sub-lethal Cyanide Poisoning.

Recorded source metadata

Oladunni Alomaja, Frances S Shofer, John C Greenwood, Sarah Piel, Carly Clayman, Clementina Mesaros, Shih-Han Kao, Samuel S Shin, Johannes K Ehinger, Todd J Kilbaugh, David H Jang. Alteration in Cerebral Metabolism in a Rodent Model of Acute Sub-lethal Cyanide Poisoning.. 2023. https://doi.org/10.1007/s13181-022-00928-w

Paper [2] notes that the primary mechanism of cyanide injury is cellular hypoxia via Complex IV inhibition, leading to mitochondrial dysfunction.

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More for · 1

Protection from cyanide-induced brain injury by the Nrf2 transcriptional activator carnosic acid.

Recorded source metadata

Dongxian Zhang, Brian Lee, Anthony Nutter, Paul Song, Nima Dolatabadi, James Parker, Sara Sanz-Blasco, Traci Newmeyer, Rajesh Ambasudhan, Scott R McKercher, Eliezer Masliah, Stuart A Lipton. Protection from cyanide-induced brain injury by the Nrf2 transcriptional activator carnosic acid.. 2015. https://doi.org/10.1111/jnc.13074

Paper [4] establishes that cyanide prevents cellular respiration specifically by inhibiting cytochrome c oxidase, culminating in hypoxic brain injury.

Source citation format

The paper trail · every fact has a biography

first checked01 Aug 2026

judged → SUPPORTED · 7501 Aug 2026

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