Injection of rabbits with a sublethal dose (0.2mglkg) of Naja haje venom induced an increase in serum cortisol, free cholesterol, glucose and potassium ions. A decrease in total cholesterol and sodium ions was observed while the progesterone level was not changed. These results suggest that the cobra venom has induced a stimulatory effect on the glucocorticoid activity paralleled with a depress...

During the past eight years the senior author has been engaged in testing the pharmacological action and therapeutic properties of Indian snake venoms. Chopra and Chowhan (1932 and 1935) showed that the efficacy of the cobra and other snake venoms in relieving the pain of malignant growths and of neuritis and neuralgias was probably due to the presence of such active principles as neurotoxin. The

From the implications of the complement system in a large number of diseases, an urgent need for therapeutics effecting reduced complement activity in vivo has emerged. In this study we report the design of a novel class of enzymes of human origin that obliterate functional complement by a noninhibitory, catalytic mechanism. Combining the framework of human C3 and the enzymatic mechanism of cob...

Snake venoms are known to contain a number of enzymes (l-3). Attempts have been made to correlate the toxicity of snake venoms with their enzymic activity, e.g. between nucleases and toxicity (4), phospholipase A and neurotoxic action of cobra venom (5), and proteolytic and coagulant activity and toxicity (6-8). Most of these studies have been carried out on whole venoms or after elimination of...

Characterizing whole proteins by top-down proteomics avoids a step of inference encountered in the dominant bottom-up methodology when peptides are assembled computationally into proteins for identification. The direct interrogation of whole proteins and protein complexes from the venom of Ophiophagus hannah (king cobra) provides a sharply clarified view of toxin sequence variation, transit pep...

Indian cobra (Naja naja) venom from different geographical locations varied in its composition and biochemical, pharmacological and immunological properties. Recently it has been shown that the variation in composition of venom from different geographical origin of Indian peninsula is due to the quantitative difference in the same components and also the presence of different biochemical entiti...

BACKGROUND A new animal model of trigeminal neuralgia produced by injecting cobra venom into the infraorbital nerve (ION) trunk in rats had been developed. We tested and extended the model by observing the ultrastructural alterations of neurons and ameliorative effect of pregabalin in cobra venom-induced pain behaviors of rats. OBJECTIVES The goal of this study was to prove the feasibility of...

Properdin factor D,1 a 23,500 tool wt euglobulin (6), interacts with properdin factor B and cobra venom factor (CoVF) to generate the CoVF-dependent C3 convertase which cleaves C3 (7) and activates the terminal complement components, C5-C9 (8). Fluid phase C3b, the major cleavage fragment of C3, interacts with factors B and D in a manner analogous to CoVF to form a fluid phase C3b-dependent C3 ...

Components of the complement system are known to play an important role in the cytolytic process and in chemotaxis of leukocytes. Cobra venom factor specifically cleaves C3 activity via activation of the alternative (properdin) complement pathway. It does not act directly on C3. If C3 is involved in tissue necrosis after ischemic injury, cobra venom factor might reduce tissue damage after acute...

1. The resistance of erythrocytes of dogs to the hemolytic activity of cobra venom is increased after splenectomy. 2. This increased resistance was observed as early as 4 days after splenectomy and usually persisted for a period of about 3 weeks, when the resistance gradually decreased to normal or slightly beyond. 3. The decrease of resistance to the hemolytic activity of venom for the erythro...