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najas/hemorràgia
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Pàgina 1 des de 29 resultats
Purification and characterization of an anti-hemorrhagic protein from Naja naja (Indian cobra) venom.
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Snake venom Kunitz-type proteins are well known to inhibit serine proteases but a few studies have also shown matrix metalloproteases (MMPs) inhibition. In view of the fact that MMPs and snake venom metalloproteases (SVMPs) have similar catalytic site, inhibition of SVMP activity by Kunitz-type
Necrosis, haemorrhage and complement depletion following bites by the spitting cobra (Naja nigricollis).
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The Spitting Cobra, Naja nigricollis, is widely and densely distributed in Africa. Fourteen patients with proven N. nigricollis bites, who were seen in the savanna region of Nigeria, did not exhibit the neurological signs, such as cranial nerve lesions and respiratory paralysis, expected following
Quantitative Characterization of the Hemorrhagic, Necrotic, Coagulation-Altering Properties and Edema-Forming Effects of Zebra Snake (Naja nigricincta nigricincta) Venom.
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This study was designed to investigate the cytotoxicity and haemotoxicity of the Western barred (zebra) spitting cobra (Naja nigricincta nigricincta) venom to help explain atypical and inconsistent reports on syndromes by Namibian physicians treating victims of human ophidian accidents. Freeze-dried
Comparison of hemorrhagic factors of the venoms of Naja naja, Agkistrodon piscivorus and Apis mellifera.
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The role of direct lytic factor (DLF) and phospholipase-A in the local hemorrhagic effect of Naja naja venom.
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A non-toxic anticoagulant metalloprotease: purification and characterization from Indian cobra (Naja naja naja) venom.
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A non-toxic potent anticoagulant metalloprotease NN-PF(3) has been purified to homogeneity from the Indian cobra (Naja naja naja) venom through a combination of column chromatography and electrophoresis. NN-PF(3) is a single chain protein with a molecular weight of 68 kDa by SDS-PAGE. It hydrolysed
Purification and cloning of cysteine-rich proteins from Trimeresurus jerdonii and Naja atra venoms.
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Three 26 kDa proteins, named as TJ-CRVP, NA-CRVP1 and NA-CRVP2, were isolated from the venoms of Trimeresurus jerdonii and Naja atra, respectively. The N-terminal sequences of TJ-CRVP and NA-CRVPs were determined. These components were devoid of the enzymatic activities tested, such as phospholipase
In vitro and in vivo Neutralizing Activity of Uvaria chamae Leaves Fractions on the Venom of Naja nigricollis in albino rat and bovine blood
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Snakebite envenomation is a global priority ranked top among other neglected tropical diseases. There is a folkloric claim that Uvaria chamae is beneficial for the management of snakebite and wounds in African ethnobotanical surveys. Besides, there are many registered patents asserting the health
Acquired factor VIII deficiency after consuming the dried gallbladder of a cobra, Naja naja.
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Acquired factor VIII deficiency is very rare, often fatal. It is associated with pregnancy, autoimmune diseases, malignancy, and drugs, although no underlying cause is found in 50%. A 49-year-old male was referred with right shoulder bruising. The coagulation test showed a prolonged activated
Morphological study of lesions induced by snake venoms (Naja naja and Agkistrodon piscivorus) in the lung and cremaster vessels of rats.
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The morphological effects of two snake venoms, N. naja and A. piscivorus, and of the Direct Lytic Factor and Phospholipase-A, compounds purified from N. naja crude venom, were investigated on lung and cremaster vessels of rats. The microcirculation of the rat reacts to these two venoms differently:
Classification of myonecrosis induced by snake venoms: venoms from the prairie rattlesnake (Crotalus viridis viridis), western diamondback rattlesnake (Crotalus atrox) and the Indian cobra (Naja naja naja).
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The pathogenesis of myonecrosis induced by three different snake venoms was studied by light microscopic examination of skeletal muscle tissue taken at time periods ranging from 0.25 hr to 4 weeks after an intramuscular injection of the venom into mice. It was possible to identify different types of
Purification, cloning and characterization of a metalloproteinase from Naja atra venom.
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The complement system is a very important part of the immune system. Many snake venoms possess activities that influence the complement. A new metalloproteinase (termed atrase B) with anticomplementary activity was purified from Naja atra venom. Atrase B is a single chain glycoprotein with a
Humanized-single domain antibodies (VH/VHH) that bound specifically to Naja kaouthia phospholipase A2 and neutralized the enzymatic activity.
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Naja kaouthia (monocled cobra) venom contains many isoforms of secreted phospholipase A2 (sPLA(2)). The PLA(2) exerts several pharmacologic and toxic effects in the snake bitten subject, dependent or independent on the enzymatic activity. N. kaouthia venom appeared in two protein profiles, P3 and
A neurotoxic phospholipase A2 variant: isolation and characterization from eastern regional Indian cobra (Naja naja) venom.
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CM-Sephadex C-25 column chromatography profile of Indian cobra (Naja naja) venom from eastern region showed a distinct and a dominant phospholipase peak, peak-10, while it was not seen in either southern or western venom samples. Peak-10 was subjected to CM-Sephadex C-25 and Sephadex G-50 column
Biochemical and biological characterization of Naja kaouthia venom from North-East India and its neutralization by polyvalent antivenom.
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This study describes biochemical and biological properties of Naja kaouthia (Indian monocled cobra) venom of North-East India. The LD50 of the crude venom was found to be 0.148mg/kg and neurotoxicitic symptoms like paralysis of lower limbs and heavy difficulty in breathing at sub-lethal dose in mice
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