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The growing world population is placing an increasing demand on food production. In addition, abuse and misuse of chemical insecticides has led to the evolution of resistance in insect pests as well as environmental damage. Together, these developments have created a demand for new insecticidal compounds to facilitate global food production. Arachnid venom peptides provide an environmentally-friendly...
Currently, biological and organic substances are screened in order to find a new generation of therapeutics active against cancer. Previous research has identified promising candidate peptides in snake venom. In this study, venoms from different snake species (Naja annulifera, Naja kaouthia, Ophiophagus hannah and Echis carinatus) were screened for potential anti-cancer properties using pancreatic...
Preparations of palytoxin (PLTX, derived from Japanese Palythoa tuberculosa) and the congeners 42-OH-PLTX (from Hawaiian P. toxica) and ovatoxin-a (isolated from a Japanese strain of Ostreopsis ovata), as well as a 50:50 mixture of PLTX and 42-OH-PLTX derived from Hawaiian P. tuberculosa were characterized as to their concentration, composition, in-vitro potency and interaction with an anti-PLTX monoclonal...
This paper presents the first report of cyanobacteria and cyanotoxins from the South Caucasus region, in particular from Lake Yerevan (Armenia). Microcystis, Dolichospermum and Planktothrix were the key genera identified during the growing season. A trend of a remarkable increase in cyanobacterial densities was observed from 2012 to 2013 exhibiting bloom formation in June (by Nostoc linckia) with...
For the first time, alcohol extracts of Atelopus hoogmoedi from the Guiana Shield in Suriname and Guyana were analyzed for the presence of tetrodotoxin (TTX) and of its analogues by high resolution hydrophilic interaction liquid chromatography/mass spectrometry. One specimen from Suriname was found to contain TTX and 4-epiTTX. Using a monoclonal antibody-based immunohistochemical staining technique,...
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