Tags

Type your tag names separated by a space and hit enter

Neutralization of two North American coral snake venoms with United States and Mexican antivenoms.
Toxicon. 2008 Feb; 51(2):297-303.T

Abstract

Elapid snakes throughout the world are considered very lethal, containing neurotoxic venoms that affect the nervous system. When humans are envenomated it is considered a serious medical emergency, and antivenom is the main form of treatment considered, in spite of the fact that some patients may only survive under intensive therapy treatment such as respiratory support. Coral snakes are part of the family Elapidae and envenomations by these snakes are very low (<2% of total snakebites) in most countries from southeastern United States to Argentina. In the United States, there are only two species of coral snakes of medical importance that belong to the Micrurus genera: Micrurus fulvius fulvius (Eastern coral snake) and Micrurus tener tener (Texas coral snake). In 2006, Wyeth pharmaceutical notified customers that the production of the North American coral snake antivenin (NACSA) in the US was discontinued and adequate supplies were available to meet historical needs through the end of October 2008; and therefore, it is of utmost important to consider other antivenoms as alternatives for the treatment of coral snake envenoming. One logical alternative is the coral snake antivenom, Coralmyn, produced by the Mexican company, Bioclon. In order to compare neutralization between NACSA and Coralmyn antivenoms with the North American coral snake venoms, the venom lethal doses (LD(50)) and antivenom effective doses (ED(50)) were determined in 18-20 g, female, BALB/c mice. Additionally, venom comparisons were determined through a non-reduced SDS-PAGE for M.f.fulvius, M.t.tener and the Mexican coral snake venom, Micrurus nigrocinctus nigrocinctus. Coralmyn antivenom was able to effectively neutralize three LD(50) doses of all venom from both M.t.tener and M.f.fulvius, while Wyeth antivenom only neutralized M.f.fulvius venom and was not effective in neutralizing three LD(50) doses of M.t.tener venom. Coralmyn is effective in the neutralization of both clinically important coral snake venoms in the US.

Authors+Show Affiliations

Natural Toxins Research Center, 975 W. Avenue B, MSC 158, Texas A&M University-Kingsville, Kingsville, TX 78363, USA. elda.sanchez@tamuk.eduNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18054059

Citation

Sánchez, Elda E., et al. "Neutralization of Two North American Coral Snake Venoms With United States and Mexican Antivenoms." Toxicon : Official Journal of the International Society On Toxinology, vol. 51, no. 2, 2008, pp. 297-303.
Sánchez EE, Lopez-Johnston JC, Rodríguez-Acosta A, et al. Neutralization of two North American coral snake venoms with United States and Mexican antivenoms. Toxicon. 2008;51(2):297-303.
Sánchez, E. E., Lopez-Johnston, J. C., Rodríguez-Acosta, A., & Pérez, J. C. (2008). Neutralization of two North American coral snake venoms with United States and Mexican antivenoms. Toxicon : Official Journal of the International Society On Toxinology, 51(2), 297-303.
Sánchez EE, et al. Neutralization of Two North American Coral Snake Venoms With United States and Mexican Antivenoms. Toxicon. 2008;51(2):297-303. PubMed PMID: 18054059.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Neutralization of two North American coral snake venoms with United States and Mexican antivenoms. AU - Sánchez,Elda E, AU - Lopez-Johnston,Juan C, AU - Rodríguez-Acosta,Alexis, AU - Pérez,John C, Y1 - 2007/10/13/ PY - 2007/09/14/received PY - 2007/10/05/revised PY - 2007/10/10/accepted PY - 2007/12/7/pubmed PY - 2008/4/2/medline PY - 2007/12/7/entrez SP - 297 EP - 303 JF - Toxicon : official journal of the International Society on Toxinology JO - Toxicon VL - 51 IS - 2 N2 - Elapid snakes throughout the world are considered very lethal, containing neurotoxic venoms that affect the nervous system. When humans are envenomated it is considered a serious medical emergency, and antivenom is the main form of treatment considered, in spite of the fact that some patients may only survive under intensive therapy treatment such as respiratory support. Coral snakes are part of the family Elapidae and envenomations by these snakes are very low (<2% of total snakebites) in most countries from southeastern United States to Argentina. In the United States, there are only two species of coral snakes of medical importance that belong to the Micrurus genera: Micrurus fulvius fulvius (Eastern coral snake) and Micrurus tener tener (Texas coral snake). In 2006, Wyeth pharmaceutical notified customers that the production of the North American coral snake antivenin (NACSA) in the US was discontinued and adequate supplies were available to meet historical needs through the end of October 2008; and therefore, it is of utmost important to consider other antivenoms as alternatives for the treatment of coral snake envenoming. One logical alternative is the coral snake antivenom, Coralmyn, produced by the Mexican company, Bioclon. In order to compare neutralization between NACSA and Coralmyn antivenoms with the North American coral snake venoms, the venom lethal doses (LD(50)) and antivenom effective doses (ED(50)) were determined in 18-20 g, female, BALB/c mice. Additionally, venom comparisons were determined through a non-reduced SDS-PAGE for M.f.fulvius, M.t.tener and the Mexican coral snake venom, Micrurus nigrocinctus nigrocinctus. Coralmyn antivenom was able to effectively neutralize three LD(50) doses of all venom from both M.t.tener and M.f.fulvius, while Wyeth antivenom only neutralized M.f.fulvius venom and was not effective in neutralizing three LD(50) doses of M.t.tener venom. Coralmyn is effective in the neutralization of both clinically important coral snake venoms in the US. SN - 0041-0101 UR - https://www.unboundmedicine.com/medline/citation/18054059/Neutralization_of_two_North_American_coral_snake_venoms_with_United_States_and_Mexican_antivenoms_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0041-0101(07)00361-3 DB - PRIME DP - Unbound Medicine ER -