Interferometry as a tool for evaluating effects of antimicrobial doses on Mycobacterium bovis growth.

Interferometry was used together with the conventional microplate resazurin assay to evaluate the antimycobacterial properties of essential oil (EO) from fruits of Pterodon emarginatus and also of rifampicin against Mycobacterium bovis. The aim of this work is not only to investigate the potential antimycobacterial activity of this EO, but also to test the interferometric method in comparison with the conventional one. The Minimum Inhibitory Concentration (MIC) values of EO (625 μg/mL) and rifampicin (4 ng/mL) were firstly identified with the microplate method.

[Malaricide activity of the quercetin in Gallus gallus L., 1758 immunocompromised infected by Plasmodium (Bennettinia) juxtanucleare Versiani and Gomes, 1941].

The aim of this study was comparatively to evaluate the malaricide activity of the quercetin to the action of the chloroquine in Gallus gallus experimentally infected for Plasmodium juxtanucleare and immunocompromised. Thirty- four hens had been used, previously infected for P. juxtanucleare and immunocompromised by the administration of 26 mg/kg of metilprednisolon 40mg/ml in the pectoral muscle.