Cross-neutralization of Thai cobra (Naja kaouthia) and spitting cobra (Naja siamensis) venoms by Thai cobra antivenom. 1997

O Khow, and N Pakmanee, and L Chanhome, and S Sriprapat, and T Omori-Satoh, and V Sitprija
Queen Saovabha Memorial Institute, Thai Red Cross Society, Bangkok, Thailand.

The neutralizing capacity of antivenom prepared against Thai cobra (Naja kaouthia) venom was compared in mice using the homologous venom and that of spitting cobra (Naja siamensis). The amounts of antivenoms neutralizing a dose of 4 LD50 of the test venom were determined. Four antivenom preparations were used: three purified antivenoms and a crude antivenom, which were made using N. kaouthia venom only. Almost the same neutralizing capacity was obtained with the purified antivenoms, whereas a slightly lower capacity was seen with the crude antivenom. However, ratios of the amounts of four antivenoms neutralizing the homologous and heterologous test venoms were almost constant. These results indicated that Thai cobra antivenom possesses neutralizing capacity against spitting cobra venom.

UI MeSH Term Description Entries
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
D009500 Neutralization Tests The measurement of infection-blocking titer of ANTISERA by testing a series of dilutions for a given virus-antiserum interaction end-point, which is generally the dilution at which tissue cultures inoculated with the serum-virus mixtures demonstrate cytopathology (CPE) or the dilution at which 50% of test animals injected with serum-virus mixtures show infectivity (ID50) or die (LD50). Neutralization Test,Test, Neutralization,Tests, Neutralization
D003429 Cross Reactions Serological reactions in which an antiserum against one antigen reacts with a non-identical but closely related antigen. Cross Reaction,Reaction, Cross,Reactions, Cross
D004546 Elapid Venoms Venoms from snakes of the family Elapidae, including cobras, kraits, mambas, coral, tiger, and Australian snakes. The venoms contain polypeptide toxins of various kinds, cytolytic, hemolytic, and neurotoxic factors, but fewer enzymes than viper or crotalid venoms. Many of the toxins have been characterized. Cobra Venoms,Elapidae Venom,Elapidae Venoms,Naja Venoms,Cobra Venom,Elapid Venom,Hydrophid Venom,Hydrophid Venoms,King Cobra Venom,Naja Venom,Ophiophagus hannah Venom,Sea Snake Venom,Sea Snake Venoms,Venom, Cobra,Venom, Elapid,Venom, Elapidae,Venom, Hydrophid,Venom, King Cobra,Venom, Naja,Venom, Ophiophagus hannah,Venom, Sea Snake,Venoms, Cobra,Venoms, Elapid,Venoms, Elapidae,Venoms, Hydrophid,Venoms, Naja,Venoms, Sea Snake
D005260 Female Females
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
D000997 Antivenins Antisera used to counteract poisoning by animal VENOMS, especially SNAKE VENOMS. Anti-Venin,Anti-Venom,Antivenin,Antivenom,Anti-Venins,Anti-Venoms,Antivenoms,Anti Venin,Anti Venins,Anti Venom,Anti Venoms
D051379 Mice The common name for the genus Mus. Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus
D017815 Elapidae A family of extremely venomous snakes which include coral snakes, cobras and sea snakes. They are widely distributed, occurring in the Southern United States, South America, Africa, Southern Asia, Australia, and the Pacific Islands. Like viperids (VIPERIDAE), they have fangs in the front part of the upper jaw which discharge venom that is neurotoxic. Acanthophiinae,Notechis,Pseudonaja,Cobra,Elapid Snakes,Elapids,Cobras,Elapid,Elapid Snake,Snake, Elapid

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