Results 171 to 180 of about 5,148 (219)
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Venom of Viperidae: A Perspective of its Antibacterial and Antitumor Potential
Current Drug Targets, 2022: The emergence of multi-drug resistant bacteria and limitations on cancer treatment represent two important challenges in modern medicine. Biological compounds have been explored with a particular focus on venoms. Although they can be lethal or cause considerable damage to humans, venom is also a source rich in components with high therapeutic ...
Fernando Gonçalves +2 more
exaly +3 more sources
Viperidae snakebites in Ecuador: A review of epidemiological and ecological aspects
Toxicon: X, 2020 Snakebite envenoming is a neglected disease of public health concern. Most snakebite accidents occur in developing countries. In Ecuador, 17 viper species are responsible for 99% of official accidents, and ten species are in critical conservation states.
Angelica Ochoa-Avilés +2 more
exaly +5 more sources
Hydrolysis of peptides by Crotalidae and Viperidae venoms
Toxicon, 1968Abstract Peptidase activities of nine Viperidae and thirteen Crotalidae venoms were investigated using twenty-nine dipeptides, six tripeptides, and one tetrapeptide. Only five peptides were not hydrolyzed by any of the snake venoms investigated. Relatively few differences in substrate specificities were found for snake venoms regardless of species ...
A T, Tu, P M, Toom
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Anticoagulant Factors from Viperidae Venoms
Thrombosis and Haemostasis, 1972SummaryTwo proteins presenting anticoagulant activities were isolated from Viperidae venoms : one from Vipera aspis, the other from Vipera berus. They interfere with the formation of prothrombinase. Their inhibitory effect results from a specific action of a complex which blocks the active sites of phospholipids.
M C, Boffa, P, Delori, J P, Soulier
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Phylogeny of the vipers of the Caucasus (Reptilia, Viperidae)
Zoologica Scripta, 1994Phylogenetic relationships for five taxa of Palearctic vipers (genus Vipera) from the Caucasian region were revealed by cladistic analyses of separate and combined morphological and biochemical characters. The different data sets yielded largely congruent cladograms. Vipera berus from Sweden was included as an ingroup and V. aspis was used for outgroup
GÖRAN NILSON +4 more
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Bayesian mixed models and the phylogeny of pitvipers (Viperidae: Serpentes)
Molecular Phylogenetics and Evolution, 2006The subfamily Crotalinae (pitvipers) contains over 190 species of venomous snakes distributed in both the Old and New World. We incorporated an extensive sampling of taxa (including 28 of 29 genera), and sequences of four mitochondrial gene fragments (2.3kb) per individual, to estimate the phylogeny of pitvipers based on maximum parsimony and Bayesian ...
Christopher L Parkinson, Todd A Castoe
exaly +4 more sources
Viperidae Envenomation in India
2014The estimated incidence of venomous snakebites in India is around 300,000 annually and the overall mortality is between 30,000 and 50,000. The majority of this is due to Viperidae envenomation. There is a lack of consensus regarding the management protocol. The symptoms, signs, diagnosis, and management of Viperidae envenomation are discussed.
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Heterochromosomen beiVipera berus L. (Viperidae, Serpentes)
Experientia, 1962A dimorphic pair of chromosomes was found among the macrochromosomes in mitosis of females ofVipera berus L. It corresponds to a pair of medium-sized chromosomes in the male. The conclusion is drawn that females are heterogametic (ZW-type), males being homogametic (ZZ-type).
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Mitochondrial genome ofProtobothrops mangshanensis(Squamata: Viperidae: Crotalinae)
Mitochondrial DNA, 2013Protobothrops maolanensis was recently described from Guizhou, southwestern China. In this study, the complete mitochondrial genome of P. maolanensis had been determined. The circle genome with the 17,231 bp total length contained 13 protein-coding genes, 22 transfer RNA genes, 2 ribosomal RNA genes and 2 control regions.
Xin, Huang +3 more
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