A paradoxical task of the venom gland of snakes is the synthesis and storage of an instantly available suite of toxins to immobilize prey and the protection of the snake against its own venom components. Furthermore, autolysis of the venom constituents due to the action of venom metalloproteases is an additional problem, particularly among viperid venoms, which are typically rich in lytic enzym...

The photodynamic action of UV sensitized methylene blue (MB) was studied on the venom of Thailand cobra Naja siamensis. The reaction mixture comprising phosphate buffer (B), methylene blue (S), and venom protein (P) was exposed to UVR (ultra violet radiation) for 2 hours at 37°C. Stable excited species (S’) were generated by photodynamic action. These in B environment produced reduced substates...

SynopsisVenom and venom resistance are molecular phenotypes widely considered to have diversified through coevolution between predators and prey. However, while evolutionary and functional studies on venom have been extensive, little is known about the molecular basis, variation, and complexity of venom resistance. We review known mechanisms of venom resistance and relate these mechanisms to th...

Centipedes are among the oldest extant venomous predators on the planet. Armed with a pair of modified, venom-bearing limbs, they are an important group of predatory arthropods and are infamous for their ability to deliver painful stings. Despite this, very little is known about centipede venom and its composition. Advances in analytical tools, however, have recently provided the first detailed...

Venom delivery systems (VDS) are common in the animal kingdom, but rare amongst mammals. New definitions of venom allow us to reconsider its diversity amongst mammals by reviewing the VDS of Chiroptera, Eulipotyphla, Monotremata, and Primates. All orders use modified anterior dentition as the venom delivery apparatus, except Monotremata, which possesses a crural system. The venom gland in most ...

background: cutaneous reactions like pruritus and erythema are common in warm months of the year in bushehr port, persian gulf, iran due to jellyfish envenomation. this study reports isolation of the chrysaora hysoscella nematocysts and evaluating its pharmacological activities during a bloom in 2013. methods: the venom of c. hysoscella captured in jofre area in bushehr port was analyzed. the e...

BACKGROUND Except for the northern region, where the Amazonian black scorpion, T. obscurus, represents the predominant and most medically relevant scorpion species, Tityus serrulatus, the Brazilian yellow scorpion, is widely distributed throughout Brazil, causing most envenoming and fatalities due to scorpion sting. In order to evaluate and compare the diversity of venom components of Tityus ob...

ahis objective has been almost accomplished during the first six months of this project. The experiments and results can be briefly summarized as follows: 1.1 Molecular sizes and relative abundance of venom proteins of the six Thai poisonous snakes. With the use of polyacrylamide gel electrophoresis (PAGE) in the presence of sodium dodecylsulfate (SDS), proteins of each snake venom can be separ...

For the first time the cDNA encoding a fire ant venom protein has been sequenced. Oligonucleotides were designed according to the amino acid sequence. The cDNA sequence was obtained by hybridizing these primers to mRNA and enhancement by the PCR technique. Comparison to the amino acid sequence of the venom protein shows a leader sequence 19 amino acids long.

ABSTRACT: Present study aimed for detection, purification, quantification of Sind Krait (Bungarus sindanus) antivenom from chicken eggs and to determine extracted efficacy in mice. Hens’ three groups were immunized by sub-lethal doses venom with adjuvant paraffin oil+lecithin. Booster injected subcutaneously on pectorals muscles at multiple sites after every two weeks upto eight weeks. Antibodi...