Results 141 to 150 of about 9,255 (180)

Some effects of Naja nigricollis envenomation on developing fetal tissue

Toxicon, 1974
Abstract The effects of maternal envenomation with N. nigricollis venom on developing fetal tissue were studied in mice. The venom passed the placental barrier and injured the kidney nephrons. In the liver, it produced disorganization of lobules with cellular degeneration and congestion of the liver sinusoids. The hepatic erythropoietic tissue seemed
A H, Mohamed, N N, Nawar, M M, Hanna
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Ocular Effects of the Venom from the Spitting Cobra (Naja Nigricollis)

Journal of Toxicology: Clinical Toxicology, 1986
N. nigricollis venom caused transient corneal oedema, extensive chemosis and pupillary dilation when applied topically to the corneas of albino and pigmented rabbits. After 1 month, permanent corneal scarring, neovascularization and deepithelialization was noted in albino eyes, whereas minimal scarring or deepithelialization occurred in pigmented eyes.
M, Ismail, A C, Ellison
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Purification and properties of a fibrinogenase from the venom of Naja nigricollis

Biochimica et Biophysica Acta (BBA) - General Subjects, 1984
A fibrinogenolytic proteinase from the venom of Naja nigricollis was purified by chromatography on Bio-Rex 70 and Phenyl-Sepharose. The purified enzyme, designated proteinase F1, was homogeneous by the criterion of SDS-polyacrylamide gel electrophoresis, and consisted of a single chain with a molecular weight of 58,000.
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Effect of iodination on the activity of cytotoxin P4 of Naja nigricollis nigricollis.

Biochemistry international, 1992
Iodination of cytotoxin P4, isolated from the venom of Naja nigricollis nigricollis, develops gradually and depends on the molar ratio between the free iodine and the cytotoxin reaching a maximum of two equivalents at a molar ratio of 250 or higher. The cytotoxic activity was also gradually decreased and was totally abolished when one equivalent of ...
G, Borkow, A, Chaim-Matyas, M, Ovadia
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[Basic phospholipase of Naja nigricollis venom].

Comptes rendus hebdomadaires des seances de l'Academie des sciences. Serie D: Sciences naturelles, 1976
It is confirmed that N. nigricollis venom contains several phospholipases one of these is a basic phospholipase A. This enzyme is toxic for mice when injected intravenously. In vitro it reacts on egg yolk lecithin producing lysolecithin and prevents the phenomenon of blood clotting.
C, Dumarey, D, Sket, D, Joseph, P, Boquet   +3 more
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Histopathological Changes in Fowls Bitten by the Spitting Snake Naja Nigricollis

Zentralblatt für Veterinärmedizin Reihe A, 2010
Summary The histopathology is reported on 20 White Leghorn chickens aged 4–5 months which had been bitten by the spitting snake (Naja nigricollis). The most consistent histopathological findings were: 1 At the site of bite severe haemolysis of the red blood cells, patches of haemorrhage and oedema, and Zenker's vacuolation and myolysis of ...
S M, Sokkar, T, Mihaiel, F S, Salem
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Hypothermic effect in rats of Naja nigricollis venom: role of acetylcholine

Toxicon, 1977
Abstract O. H. Osman , A. O. A. Elkhawad and M. Ismail . Hypothermic effect in rats of Naja nigricollis venom: role of acetylcholine. Toxicon15, 75–80, 1977.—Naja nigricollis venom produced a hypothermic effect when it was injected intraperitoneally into rats, while N. naja, N. nivea and N. melanoleuca venoms were ineffective.
O H, Osman, A O, Elkhawad, M, Ismail
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Naja naja atra and Naja nigricollis cardiotoxins induce fusion of Escherichia coli and Staphylococcus aureus membrane-mimicking liposomes

Toxicon, 2012
Our previous studies showed that the bactericidal effect of Naja naja atra cardiotoxin 3 (CTX3) and Naja nigricollis toxin γ was associated with their membrane-damaging activity. To elucidate the mechanism responsible for CTX3- and toxin γ-induced membrane permeability, we investigated the interacted mode of CTX3 and toxin γ with model membrane of ...
Pei-Hsiu, Kao, Shinne-Ren, Lin, Wan-Ping, Hu, Long-Sen, Chang   +3 more
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Die Spei-Kobra-Ophthalmie (Naja nigricollis)*

Klinische Monatsblätter für Augenheilkunde, 1984
The spitting cobra (Naja nigricollis) can eject its venom into its adversary's eyes from a distance of several meters. This causes an immediate and painful conjunctival infection, followed by blepharospasm, corneal and conjunctival edema, and erosion. Corneal ulcer, in some cases with perforation, hypopyon and endophthalmitis are the results.
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[Spitting cobra ophthalmia (Naja nigricollis)].

Klinische Monatsblatter fur Augenheilkunde, 1985
The spitting cobra (Naja nigricollis) can eject its venom into its adversary's eyes from a distance of several meters. This causes an immediate and painful conjunctival infection, followed by blepharospasm, corneal and conjunctival edema, and erosion. Corneal ulcer, in some cases with perforation, hypopyon and endophthalmitis are the results.
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