Biomaterial Database

COHb formation and acute carbon monoxide intoxication in adult male rats and guinea-pigs. 1981

M Stupfel, and M Mordelet-Dambrine, and A Vauzelle

Respiratory exchange recordings and percentage survivals to lethal concentrations show that rats are more sensitive than guinea-pigs to an acute carbon monoxide intoxication. To avoid circadian respiratory an comportmental differences between rats and guinea-pigs experiments were performed on urethane anesthetized and artificially ventilated animals. This procedure demonstrates that, for an inhaled concentration of 0.05% CO, the rates of formation of COHb do not statistically differ in rats and in guinea-pigs, but that a higher (0.01 less than p less than 0.05) COHb saturation is reached in rats (35%) than in guinea-pigs (25%). For a 2.84% CO inhalation, no statistically significant difference is observed in the rate of COHb formation, but cardiac arrest is sooner (p less than 0.001) observed in rats than in guinea-pigs.

UI	MeSH Term	Description	Entries
D007700	Kinetics	The rate dynamics in chemical or physical systems.
D008297	Male		Males
D012121	Respiration, Artificial	Any method of artificial breathing that employs mechanical or non-mechanical means to force the air into and out of the lungs. Artificial respiration or ventilation is used in individuals who have stopped breathing or have RESPIRATORY INSUFFICIENCY to increase their intake of oxygen (O2) and excretion of carbon dioxide (CO2).	Ventilation, Mechanical,Mechanical Ventilation,Artificial Respiration,Artificial Respirations,Mechanical Ventilations,Respirations, Artificial,Ventilations, Mechanical
D002248	Carbon Monoxide	Carbon monoxide (CO). A poisonous colorless, odorless, tasteless gas. It combines with hemoglobin to form carboxyhemoglobin, which has no oxygen carrying capacity. The resultant oxygen deprivation causes headache, dizziness, decreased pulse and respiratory rates, unconsciousness, and death. (From Merck Index, 11th ed)	Monoxide, Carbon
D002249	Carbon Monoxide Poisoning	Toxic asphyxiation due to the displacement of oxygen from oxyhemoglobin by carbon monoxide.	Illuminating Gas Poisoning,Poisoning, Carbon Monoxide,Poisoning, Illuminating Gas,Carbon Monoxide Poisonings,Gas Poisoning, Illuminating,Gas Poisonings, Illuminating,Illuminating Gas Poisonings,Monoxide Poisoning, Carbon,Monoxide Poisonings, Carbon,Poisonings, Carbon Monoxide,Poisonings, Illuminating Gas
D002263	Carboxyhemoglobin		Carbomonoxyhemoglobin,Carbonmonoxyhemoglobin,Carbonylhemoglobin,Carboxyhemoglobin A,Carboxyhemoglobin C
D002940	Circadian Rhythm	The regular recurrence, in cycles of about 24 hours, of biological processes or activities, such as sensitivity to drugs or environmental and physiological stimuli.	Diurnal Rhythm,Nyctohemeral Rhythm,Twenty-Four Hour Rhythm,Nycthemeral Rhythm,Circadian Rhythms,Diurnal Rhythms,Nycthemeral Rhythms,Nyctohemeral Rhythms,Rhythm, Circadian,Rhythm, Diurnal,Rhythm, Nycthemeral,Rhythm, Nyctohemeral,Rhythm, Twenty-Four Hour,Rhythms, Circadian,Rhythms, Diurnal,Rhythms, Nycthemeral,Rhythms, Nyctohemeral,Rhythms, Twenty-Four Hour,Twenty Four Hour Rhythm,Twenty-Four Hour Rhythms
D006168	Guinea Pigs	A common name used for the genus Cavia. The most common species is Cavia porcellus which is the domesticated guinea pig used for pets and biomedical research.	Cavia,Cavia porcellus,Guinea Pig,Pig, Guinea,Pigs, Guinea
D006454	Hemoglobins	The oxygen-carrying proteins of ERYTHROCYTES. They are found in all vertebrates and some invertebrates. The number of globin subunits in the hemoglobin quaternary structure differs between species. Structures range from monomeric to a variety of multimeric arrangements.	Eryhem,Ferrous Hemoglobin,Hemoglobin,Hemoglobin, Ferrous
D000208	Acute Disease	Disease having a short and relatively severe course.	Acute Diseases,Disease, Acute,Diseases, Acute