Buscar
Mostrando ítems 291-300 de 358
Inhibitory effects of Piper umbellatum and Piper peltatum extracts towards myotoxic phospholipases A2 from Bothrops snake venoms: isolation of 4-nerolidylcatechol as active principle
(2005)
Phospholipases A2 (PLA2) are important constituents of snake venoms, being responsible for several of their toxic actions.
Extracts from plants used in folk medicine were screened for inhibition of the enzymatic activity ...
Exploration of immunoglobulin transcriptomes from mice immunized with three-finger toxins and phospholipases A2 from the Central American coral snake, Micrurus nigrocinctus
(2017)
Snakebite envenomings represent a neglected public health issue in many parts of the
rural tropical world. Animal-derived antivenoms have existed for more than a hundred
years and are effective in neutralizing snake venom ...
Development of nanobodies against hemorrhagic and myotoxic components of Bothrops atrox snake venom
(2020)
Snake envenoming is a globally neglected public health problem. Antivenoms produced using animal hyperimmune plasma remain the standard therapy for snakebites. Although effective against systemic effects, conventional ...
Venomics of the Duvernoy's gland secretion of the false coral snake Rhinobothryum bovallii (Andersson, 1916) and assessment of venom lethality towards synapsid and diapsid animal models
(2020)
The Duvernoy's gland secretory proteome of the false coral snake Rhinobothryum bovallii (Costa Rica), unveiled applying bottom-up venomics, comprises a handful of toxins belonging to only three protein families, three-finger ...
Anticomplementary activity of equine whole IgG antivenoms: comparison of three fractionation protocols
(2005-01)
Early adverse reactions occur in a number of patients treated with heterologous antivenoms and have been associated with anticomplementary activity (ACA). In order to reduce the ACA of equine whole IgG antivenoms produced ...
Isolation and characterization of a myotoxic phospholipase A2 from the venom of the arboreal snake Bothriechis (Bothrops) schlegelii from Costa Rica
(1997-03)
A new myotoxic phospholipase A2was isolated from the venom of the arboreal snakeBothriechis schlegelii(formerlyBothrops schlegelii) from Costa Rica, by ion-exchange chromatography on CM-Sephadex.B. schlegeliimyotoxin I is ...
Danger in the canopy: comparative proteomics and bioactivities of the venoms of the South American palm viper Bothrops bilineatus subspecies bilineatus and smaragdinus, and antivenomics of B. b. bilineatus (Rondônia) venom against the Brazilian pentabothropic antivenom
(2020)
We report a structural and functional proteomics characterization of venoms of the two subspecies (Bothrops bilineatusbilineatus and B. b. smaragdinus) of the South American palm pit viper from the Brazilian state of ...
A constant area monolayer method to assess optimal lipid packing for lipolysis tested with several secreted phospholipases A2
(2015-10)
We present an analysis of lipid monolayer hydrolysis at a constant area to assess the optimal lateral surface
pressure value (Πopt) and thus, the surface packing density of the lipid, at which the activity of a given ...
Tyr→Trp-substituted peptide 115-129 of a Lys49 phospholipase A2 expresses enhanced membrane-damaging activities and reproduces its in vivo myotoxic effect
(1999)
Myotoxin II is a group II Lys49 phospholipase A2 (PLA2) isolated from the venom of the snake Bothrops asper. Previous
studies on a synthetic peptide derived from its heparin-binding, cationic/hydrophobic sequence 115^129 ...
Molecular architecture of the antiophidic protein DM64 and its binding specificity to myotoxin II from Bothrops asper venom
(2022)
DM64 is a toxin-neutralizing serum glycoprotein isolated from Didelphis aurita, an ophiophagous marsupial naturally resistant to snake envenomation. This 64 kDa antitoxin targets myotoxic phospholipases A2, which account ...