Résumé
The effect of scorpion venom of Buthus Tamulus species on blood pressure, ECG, enzyme and electrolytes were studied in dogs. Venom was given in doses of 2 and 4 mg/kg body weight. Hypotension and tachycardia were observed with low dose and bradycardia was significant with high dose. ST segment depression, T wave changes, shortening of PR interval were the important ECG changes apart from ventricular extrasystoles. With high dose, QRS amplitude was reduced and duration prolonged. QTC interval was also significantly prolonged. Significant increase in SGOT, SGPT and LDH levels were observed but no change in serum electolytes was seen.
Sujets)
Alanine transaminase/sang , Animaux , Aspartate aminotransferases/sang , Pression sanguine/effets des médicaments et des substances chimiques , Chiens , Électrocardiographie , Enzymes/sang , L-Lactate dehydrogenase/sang , Potassium/sang , Venins de scorpion/pharmacologie , Sodium/sangRésumé
The effects of Mono sodium glutamate on smooth muscles were studied using the guinea-pig isolated ileum. Mono sodium glutamate produced spasmogenic effect. Atropine blocked the contractile response elicited by Mono sodium glutamate whereas mepyramine and hexamethonium failed to do so. These findings suggest a cholinergic involvement at post ganglionic site of action.