R
R. Fonnegra
Researcher at University of Antioquia
Publications - 6
Citations - 551
R. Fonnegra is an academic researcher from University of Antioquia. The author has contributed to research in topics: Renealmia alpinia & Venom. The author has an hindex of 6, co-authored 6 publications receiving 526 citations.
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Journal ArticleDOI
Snakebites and ethnobotany in the northwest region of Colombia. Part III: neutralization of the haemorrhagic effect of Bothrops atrox venom.
Rafael Otero,Vitelbina Núñez,Jacqueline Barona,R. Fonnegra,Silvia L. Jiménez,R.G. Osorio,Mónica Saldarriaga,Álvaro Paúl Díaz +7 more
TL;DR: Thirty-one of 75 extracts of plants used by traditional healers for snakebites, had moderate or high neutralizing ability against the haemorrhagic effect of Bothrops atrox venom from Antioquia and Chocó, north-western Colombia.
Journal ArticleDOI
Snakebites and ethnobotany in the northwest region of Colombia: Part I: traditional use of plants.
Rafael Otero,R. Fonnegra,Silvia L. Jiménez,Vitelbina Núñez,N. Evans,S.P. Alzate,M.E. Garcı́a,Mónica Saldarriaga,G. Del Valle,R.G. Osorio,Álvaro Paúl Díaz,Rafael Valderrama,A. Duque,H.N. Vélez +13 more
TL;DR: In Antioquia and Choco, traditional healers attend 60% of snakebites as mentioned in this paper, with 20 healers with experience in Bothrops, Porthidium and Bothriechis envenomations interviewed between 1996 and 1998.
Journal ArticleDOI
Snakebites and ethnobotany in the northwest region of Colombia: Part II: neutralization of lethal and enzymatic effects of Bothrops atrox venom.
Rafael Otero,Vitelbina Núñez,Silvia L. Jiménez,R. Fonnegra,R.G. Osorio,M.E. Garcı́a,Álvaro Paúl Díaz +6 more
TL;DR: Twelve of 74 ethanolic extracts of plants used by traditional healers for snakebites in the northwest region of Colombia, were active against lethal effect of Bothrops atrox venom when they were i.p. injected into mice.
Journal ArticleDOI
Neutralization of the edema-forming, defibrinating and coagulant effects of Bothrops asper venom by extracts of plants used by healers in Colombia.
Vitelbina Núñez,Rafael Otero,Jacqueline Barona,Mónica Saldarriaga,R.G. Osorio,R. Fonnegra,Silvia L. Jiménez,A. Díaz,Juan C Quintana +8 more
TL;DR: The neutralizing activity of 12 ethanolic extracts of plants against the edema-forming, defibrinating and coagulant effects of Bothrops asper venom in Swiss Webster mice was determined.
Journal ArticleDOI
Inhibition of the Toxic Effects of Lachesis muta, Crotalus durissus cumanensis and Micrurus mipartitus Snake Venoms by Plant Extracts
Vitelbina Núñez,Rafael Otero,Jacqueline Barona,R. Fonnegra,Silvia L. Jiménez,R.G. Osorio,Juan C Quintana,A. Díaz +7 more
TL;DR: The ethanol extracts of eight plants utilized against snakebites by traditional healers in Colombia were examined for their possible inhibitory ability against the venoms of Lachesis muta, Crotalus durissus cumanensis, and Micrurus mipartitus to identify useful plant species for future purification of venom-neutralizing components that might become helpful in the development of supplementary therapies against snakebits.