نتایج جستجو برای: spider venoms

تعداد نتایج: 14870  

Journal: :The Journal of biological chemistry 2005
Mário T Murakami Matheus F Fernandes-Pedrosa Denise V Tambourgi Raghuvir K Arni

Sphingomyelinases D (SMases D) from Loxosceles spider venom are the principal toxins responsible for the manifestation of dermonecrosis, intravascular hemolysis, and acute renal failure, which can result in death. These enzymes catalyze the hydrolysis of sphingomyelin, resulting in the formation of ceramide 1-phosphate and choline or the hydrolysis of lysophosphatidyl choline, generating the li...

2012
Stephen R. Hughes Patrick F. Dowd Eric T. Johnson

Several important areas of interest intersect in a class of peptides characterized by their highly cationic and partly hydrophobic structure. These molecules have been called cell-penetrating peptides (CPPs) because they possess the ability to translocate across cell membranes. This ability makes these peptides attractive candidates for delivery of therapeutic compounds, especially to the inter...

2013
Emma Bateman Michael Venning Peter Mirtschin Anthony Woods

The effects of various viperid and elapid venoms on the cellular biology of tumour-associated microvascular endothelial cells (TAMECs) were determined in the current study using cells isolated from a rat mammary adenocarcinoma. Previous studies to determine the effects of snake venoms on endothelial cells in vitro have in the main been performed on either human umbilical vein endothelial cells ...

2004
Struan Keith Sutherland James Tibballs

Australia's fauna is remarkable for its range of venomous creatures, on land and in the sea and Struan Sutherland was a doyen of medical research in the field of envenomation and the ultimate authority on the medical management of envenomated victims in Australia. Snakes, spiders, ticks, deadly jellyfish and other venomous creatures have always instilled fear into its citizens. The fight agains...

Journal: :Cytotechnology 2016
Michael J Bradshaw Anthony J Saviola Elizabeth Fesler Stephen P Mackessy

Snake venoms are mixtures of bioactive proteins and peptides that exhibit diverse biochemical activities. This wide array of pharmacologies associated with snake venoms has made them attractive sources for research into potentially novel therapeutics, and several venom-derived drugs are now in use. In the current study we performed a broad screen of a variety of venoms (61 taxa) from the major ...

2014
Gizeli S. Gimenez Antonio Coutinho-Neto Anderson M. Kayano Rodrigo Simões-Silva Frances Trindade Alexandre de Almeida e Silva Silvana Marcussi Saulo L. da Silva Carla F. C. Fernandes Juliana P. Zuliani Leonardo A. Calderon Andreimar M. Soares Rodrigo G. Stábeli

Toxins purified from the venom of spiders have high potential to be studied pharmacologically and biochemically. These biomolecules may have biotechnological and therapeutic applications. This study aimed to evaluate the protein content of Parawixia bistriata venom and functionally characterize its proteins that have potential for biotechnological applications. The crude venom showed no phospho...

Journal: :The Journal of General Physiology 1972
Nobufumi Kawai Alexander Mauro Harry Grundfest

The effect of black widow spider venom (BWSV) on the junctions of the lobster nerve-muscle preparation was studied by intracellular recordings. After application of BWSV both excitatory and inhibitory postsynaptic potentials (epsp and ipsp) were augmented then suppressed. The frequency of miniature potentials was markedly increased by BWSV. Summated postsynaptic conductance changes appeared to ...

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