Naja nigricollis aggressive cobra widely distributed in africa. Blacknecked spitting cobra african snakebite institute. Indian cobra naja najaphoto by kamalnv made available on wikimedia and reproduced under the terms of gnu free documentation license b. Naja nigricollis black necked spitting cobra geographic distribution. This snake just enters namibia in the extreme north but is common elsewhere in africa. We are breeding them regulary, last year we had two clutches of 16 eggs, all hatched our adult animals comes from ghana, tanzanian specimens should be more brown as black, at least those we saw.
Phytochemical and antivenom studies on the stem bark of. After 1 month, permanent corneal scarring, neovascularization and deepithelialization. Media in category naja nigricollisthe following 10 files are in this category, out of 10 total. Venomous snakebite protocols from joe pittman i strongly suggest every one of you who handle venomous snakes invest in snakebite treatment protocols for the snakes you handle. Naja nigricollis synonyms, naja nigricollis pronunciation, naja nigricollis translation, english dictionary definition of naja nigricollis. Blacknecked spitting cobra naja nigricollis inaturalist.
Naja nigricollis blacknecked spitting cobra status. Note that raymond hoser had named the same group of cobras spracklandus 6 months earlier. Archives of biochemistry and biophysics 1999, 369 1, 1071. Impact of naja nigricollis venom on the production of methaemoglobin article pdf available in toxins 1012.
Eaker and jerker porath institute of biochemistry, university of uppsala, uppsala sweden received february i ith, 1966 revised manuscript received may 5th, 1966 summary a neurotoxin, called toxin a, has been. Necrosis, haemorrhage and complement depletion following. Necrosis, haemorrhage and complement depletion following bites by the spitting cobra naja nigricollis. A list of lyrics, artists and songs that contain the term naja nigricollis from the website. King cobra ophiophagus hannahphoto by kumar made available on wikimedia and reproduced under the terms of gnu free documentation license. Naja nigricollis black necked spitting cobra sareptiles. Juveniles are often gunmetal grey with a pitchblack throat region.
Lethality toxicity of naja nigricollis snake venom was studied before and after exposure to 1. Naja nigricollis definition of naja nigricollis by the. The homeopath chooses naja nigricollis dilution for each disease or symptom. The effects of the venoms of naja melanoleuca, naja nigricollis, and ophiophagus hannah on blood coagulation, platelet aggregation, and fibrinolysis were studied in vitro. Captive care notes for naja nigricollis insight on the proper maintenance of the blacknecked spitting cobra from south africa. The shhs is a group of venomous reptile keepers educating the public about venomous snakes and lizards. Interaction of modified neurotoxins from naja nigricollis with the nicotinic acetylcholine receptor from torpedo marmorata a raman spectroscopy study michel n6grerie t, dimitrina aslanian, franqoise bouet 2, andr6 m6nez 2, hofingoanh nghim 3 and.
Naja nigricollis nigricincta bogert 1940 has been elevated to full species status with n. Ocular effects of the venom from the spitting cobra naja. Aminoacid composition of the phospholipases a2 of the venom of the central asian cobra. Naja nigricollis is classified under the genus naja of the family elapidae. Neutralization effect of tithonia diversifolia hemsl. Pdf naja nigricollis blacknecked spitting cobra geographic. Hei jing she du yanjingshe, dutch afrikaanse spugende cobra, zwarthalscobra, english black necked spitting cobra, black spitting cobra, crawshays spitting cobra, western barred spitting cobra, french cobra cracheur a cou noir, german afrikanische speikobra, schwarzhalskobra.
Catalytic properties of two phospholipases a from cobra naja nigricollis venom j. Idiots tree felling fails with chainsaw machine tree falls on head and house duration. The basic phospholipase a2 from naja nigricollis venom. They are moderately sized snakes that can grow to a length of 1. The blacknecked spitting cobra is active both during the day and at night and covers fair distances in search of food. It was first described by norwegian zoologist johan reinhardt in 1843. Effects of three cobra venoms on blood coagulation. Additionally, this species also usually has 23 or fewer dorsal scale rows at midbody, vs the usual 25 in naja nubiae. Ability of gamma radiation to detoxify blacknecked. Enzymatic activity on free and membrane bound substrates. Blood circulation, particularly thrombosis and haemostasis, is one of the major targets of several snake venom proteins. African spitting cobra naja nigricollis bite of the hand william m.
They were incubated for 90 min at 37 in air on a dubnoff shaker. Map indicating the distribution of the blacknecked spitting cobra naja nigricollis in africa this snake is a large cobra that may exceed 2 m in length. Indian cobra naja naja photo by kamalnv made available on wikimedia and reproduced under the terms of gnu free documentation license b. Naja nigricollis pellets homeopathy boiron control.
Recently, however, biologists have discovered that nearly a dozen species exist in asia, some being venom spitters and others not. Naja nigricincta is a species of spitting cobra in the genus naja belonging to the family elapidae, which is native to the deserts and drier regions of southern africa. Venomous snakebite protocols from joe pittman thailandsnakes. Naja nigricincta bogert, 1940, was long regarded as a subspecies of n. The blacknecked spitting cobra naja nigricollis is a species of spitting cobra found mostly in. African spitting cobra naja nigricollis bite of the hand. Nawaprin naja nigricollis blacknecked spitting cobra. Of these, about 8000 result in envenomation by poisonous species.
Observation of the effects of mutations helps account for sequencespecific properties and large variations in folding rates observed in homologous proteins, which are not explained by structurederived descriptions. Unbound toxins were eliminated by washing with buffer a. Naja nigricollis wikispecies, free species directory. Inhibition of adenosine diphosphateinduced platelet aggregation, antioxidant activity, total phenol content and neutralization of venominduced. Impact of naja nigricollis venom on the production of. The blacknecked spitting cobra naja nigricollis is a species of spitting cobra found mostly in subsaharan africa. They possess medically significant venom, although the mortality rate for. Toxins free fulltext impact of naja nigricollis venom on the.
Over the last several decades, research on snake venom toxins has provided not only new tools to decipher molecular details of various physiological processes, but also inspiration to design and develop a number of therapeutic agents. Clinical toxinology resources website provides information on venoms, toxins, antivenoms, diagnosis, treatment and emergency medicine, for snakebite, spiderbite, envenoming and poisoning by animals, plants, mushrooms. Warrell da, greenwood bm, davidson nm, ormerod ld, prentice cr. Gray asteraceae used in traditional medicine was evaluated for neutralization of toxicity induced by bitis arietans and naja nigricollis snake venoms in mice and rats. Homogeneity was verified by free boundary electrophoresis, acrylamide gel electrophoresis, sedimentation velocity, amino acid. The ld 50 was determined according to the method of spearman and.
Blacknecked spitting cobra wikipedia republished wiki 2. Its effects contrasted with those of a noncardiotoxic acidic phospholipase. This file is licensed under the creative commons attributionshare alike 3. They are very big, male almost 2 meters and very stocky. The species is largely nocturnal, and is often found while crossing roads at night. Their coloration and markings can vary considerably. Crystalline phospholipase a associated with a cobra venom.
In the last step, unreacted free sulfhydryl groups. Pdf impact of naja nigricollis venom on the production. Pdf snakebite envenomation is an affliction currently estimated to be. Naja nigricollis synonyms, naja nigricollis antonyms. Basic phospholipase a2 from naja nigricollis snake venom. The indian cobra or indian spectacled cobra, naja naja was formerly considered a single species with much the same distribution as the king cobra. In north america, 98% of poisonous snakebites are caused by pit vipers crotilidae. Purification of the nicotinic acetylcholine receptor.
This action appeared to be due to an effect on both the extrinsic and blood thromboplastin mechanisms. Fifty thousand snakebites occur annually in north america. Here you will find everything you ever wanted to know. Leaf methanol extract and fractions of tithonia diversifolia hemsl. Pdf on jun 24, 2017, daniel f hughes and others published naja nigricollis blacknecked spitting cobra geographic distribution. Turn the tube to bring down the required number of granules in the cap and remove the homeopathic pellets naja nigricollis 5ch 7ch 9ch 15ch under the tongue. A range of snake venoms induce the oxidation of hb the ability of venoms to oxidise hb into methb has been reported within the family of viperidae 15 17,26. Purification of a neurotoxin from the venom of naja. The strongly anticoagulant phospholipase a2 from naja nigricollis venom binds to coagulation factor xa to inhibit the prothrombinase complex. Blacknecked spitting cobra naja nigricollis description a large cobra of around 1. Similarly, 1 ml of polymodified abungarotoxin was mixed with 2. The spitting cobra, naja nigricollis, is widely and densely distributed in africa.
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