نتایج جستجو برای: scorpion venom

تعداد نتایج: 11169  

2016
Ning Luan Wang Shen Jie Liu Bo Wen Zhilong Lin Shilong Yang Ren Lai Siqi Liu Mingqiang Rong

Scorpion venom is deemed to contain many toxic peptides as an important source of natural compounds. Out of the two hundred proteins identified in Mesobuthus martensii (M. martensii), only a few peptide toxins have been found so far. Herein, a combinational approach based upon RNA sequencing and Liquid chromatography-mass spectrometry/mass spectrometry (LC MS/MS) was employed to explore the veno...

2016
Andreas Hougaard Laustsen Mireia Solà Emma Christine Jappe Saioa Oscoz Line Præst Lauridsen Mikael Engmark

Spiders and scorpions are notorious for their fearful dispositions and their ability to inject venom into prey and predators, causing symptoms such as necrosis, paralysis, and excruciating pain. Information on venom composition and the toxins present in these species is growing due to an interest in using bioactive toxins from spiders and scorpions for drug discovery purposes and for solving cr...

Journal: :The Biochemical journal 2009
Rahma Ben Abderrazek Issam Hmila Cécile Vincke Zakaria Benlasfar Mireille Pellis Hafedh Dabbek Dirk Saerens Mohamed El Ayeb Serge Muyldermans Balkiss Bouhaouala-Zahar

Scorpion venom, containing highly toxic, small polypeptides that diffuse rapidly within the patient, causes serious medical problems. Nanobodies, single-domain antigen-binding fragments derived from dromedary heavy-chain antibodies, have a size that closely matches that of scorpion toxins. Therefore these nanobodies might be developed into potent immunotherapeutics to treat scorpion envenoming....

Journal: :The New England journal of medicine 2009
Leslie V Boyer Andreas A Theodorou Robert A Berg Joanne Mallie Ariana Chávez-Méndez Walter García-Ubbelohde Stephen Hardiman Alejandro Alagón

BACKGROUND Clinically significant scorpion envenomation by Centruroides sculpturatus produces a dramatic neuromotor syndrome and respiratory insufficiency that often necessitate intensive supportive care. We hypothesized that a scorpion-specific F(ab')(2) antivenom would promptly resolve clinical symptoms in children with this syndrome. METHODS In a randomized, double-blind study, the efficac...

Journal: :The Journal of biological chemistry 1988
G G Chicchi G Gimenez-Gallego E Ber M L Garcia R Winquist M A Cascieri

An inhibitor of apamin binding has been purified to homogeneity in three chromatographic steps from the venom of the scorpion, Leiurus quinquestriatus hebraeus. The inhibitor, which we have named leiurotoxin I, represents less than 0.02% of the venom protein. It is a 3.4-kDa peptide with little structural homology to apamin although it has some homology to other scorpion toxins such as charybdo...

2012
Amir Ahmad Salarian Amir Jalali Abbas Zare Mirakabadi Hossein Vatanpour Farshad H. Shirazi

Scorpion venom toxicity is of major concern due to its influence on human activities and public health. We investigated the in-vitro process of cell death caused by two Iranian scorpions Odontobuthus doriae and Bothutus salceyi venom on human cell lines. The aim of this study was to provide further information about triggering cell death and suggestion of methods for the elimination of unwanted...

Journal: :iranian journal of nuclear medicine 2010
seyed pezhman shirmardi mostafa gandomkar mojtaba shamsaei abbas zare mirakabadi mohammad ghannadi maragheh

introduction: iranian scorpion species are classified in buthidae and scorpionidae with 16 genera and 25 species. in iran, similar to other parts of the world, there are a few known species of scorpions responsible for severe envenoming. mesobuthus eupeus is the most common species in iran. its venom contains several toxin fractions which can affect the ion channel. in this study purification, ...

Journal: :iranian red crescent medical journal 0
ghafar eskandari institute of molecular biology, national academy of sciences of armenia, yerevan, armenia; institute of molecular biology, national academy of sciences of armenia, yerevan, armenia. tel: +98-37498241221 abbas jolodar department of basic sciences, faculty of veterinary medicine, shahid chaamran uiversity of ahvaz, ahvaz, ir iran masoud reza seyfiabad shapouri department of pathobiology, faculty of veterinary medicine, shahid chaamran uiversity of ahvaz, ahvaz, ir iran ardeshir bahmainmehr department of biotechnology-molecular genetics, marvdasht branch, islamic azad university, marvdasht, ir iran shahrokh navidpour department veterinary parasitology, razi vaccine and serum research institute, karaj, ir iran

conclusion: the newly produced recombinant protein bmk revealed to be immunogenic. moreover, anti-bmk antibodies produced in mice were able to recognize both the recombinant bmk neurotoxin and the one in m. eupeus crude venome. taken together, the molecular characterization and recombinant production of the iranian scorpion m. eupeus venom component can serve as a new probe for further studies ...

Journal: :iranian red crescent medical journal 0
ahmad farajzadeh-sheikh department of microbiology, school of medicine, ahvaz jundishapur university of medical sciences, ir iran abbas jolodar department of basic sciences, faculty of veterinary medicine, shahid chamran university of ahvaz, ir iran +98-6113330073, [email protected]; department of basic sciences, faculty of veterinary medicine, shahid chamran university of ahvaz, ir iran +98-6113330073, [email protected] shamsedin ghaemmaghami razi vaccine and serum research institute, ir iran

objectives in this study, we reported the identification of a cdna sequence encoding cysteine-free antimicrobial peptides isolated from venomous glands of this species. materials and methods total rna was extracted from the iranian mesobuthus eupeus venom glands, and cdna was synthesized by using the modified oligo (dt). the cdna was used as the template for applying semi-nested rt- pcr techniq...

Journal: :Bulletin de la Societe de pathologie exotique 2014
B Aboumaâd N Iba N Dersi

Around the world and especially in summer, the scorpion envenomation is a real public health problem. In Morocco, its gravity is due to the diversity of genera of the Buthidae family whose their venom is potentially lethal, mainly the genus Androctonus, Buthus and Hottentota. The areas most affected by this problematic are the central and southern of Morocco. The lethality of scorpion's venom p...

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