... of their saliva to find blood. Here we describe the first evidence of vasodilators in horse fly Hybomitra bimaculata (Diptera, Tabanidae) salivary gland extract and clone and express one of the active peptides (termed vasotab). Physiological tests using crude salivary gland extracts and reverse-phase HPLC...

... 1999 catechol oxidase peroxidase vasodilator salivary gland myeloperoxidase mosquito Anopheles albimanus The saliva of blood-sucking arthropods contains a diverse array of antihemostatic chemicals ( Ribeiro, 1987 , 1995 ), including anticlotting, antiplatelet and vasodilatory...

...Jesus G. Valenzuela; José M. C. Ribeiro ABSTRACT Cimex lectularius and Rhodnius prolixus contain salivary nitric oxide (NO) that may help them to feed on their vertebrate hosts by promoting vasodilation and inhibiting platelet aggregation. Salivary NO is associated with heme proteins (nitrophorins...

...Jesus G. Valenzuela; F. Ann Walker; José M. C. Ribeiro ABSTRACT Salivary gland homogenate of the bedbug Cimex lectularius caused vasodilation of the preconstricted rabbit aortic ring in the absence of endothelium. Vasodilation was augmented in the presence of superoxide dismutase and inhibited...

... (serotonin) substrates was also present in the salivary gland homogenates, this latter activity requiring hydrogen peroxide. Noradrenaline oxidation, serotonin and o -dianisidine peroxidation and vasodilation all co-elute with a heme protein of relative molecular mass 50000, as determined by molecular...