Oct 16 2016

Cysts

Disruption of cysts in the endometrium: although the gestante to present the illness in the chronic phase, some cysts located in the endometrium could, in rare situations, if to breach (distenso mechanics or ltica action of the corinicas vilosidades of the placenta), liberating the bradizotos that would penetrate in the embryo. (SNOWS, 2005) In the chronic phase of the infection, meeting only forms incistadas in fabrics, the sorolgicas tests can be negative or to paresentarem extremely low headings. Toxoplasma has been isolated of many patients with negative imunolgicas reactions. (REY, 2001) In function of the ancestry of used Toxoplasma in the inoculations of the laboratory animals, DUA evolutions can have place: 1.Com virulent ancestries. In some animals (Canarian, mice, cobais and other rodents) an acute picture is developed, as the cells most frequent invaded by the parasites they are the leukocytes and macrophages, toxoplasma can be found, soon stated period, qm almost all the fabrics of the host. (REY, 2001) 2.Com not-virulent ancestries. The inoculations in young dogs, rabbits and mice, for saw intraperitoneal, produce the formation of pseudocysts, in slow rhythm. The biggest parasitic density is found in the peritoneal exsudato, for return of the sixth day.

The cells generally contain less than 20 parasites when they are gives to be breached. This parasitism decreases until, after two weeks, already they do not meet toxoplasma in this localization. (REY, 2001) Interconverso Taquizota-Bradizota: Very important fact in the patogenia of toxoplasmose, in imunodeprimidos patients, is the Interconverso bradizota-taquizotas, whose determinative factors are practically unknown. (REY, 2001) Normally, when taquizotas penetrates in the cells hostesses, they modify the wall of vacolo, in way who more do not meet many there normal proteins (what it hinders the adhesion of lisossomos or the acidificao of its interior) and appear others that take vacolo to evolve inside for a cystic wall of which if they differentiate bradizotas.