Based on a serum-free and CO,-independent culture of Toxoplasma go&ii in vitro, a simple single arrangement mass production of trophozoites of the highly virulent BK strain of this parasite was developed. Starting simultaneously, lo7 host cells (HEp-2) and 10’ Toxoplasma trophozoites were cultured in one cell-factory@ for 5 days, removing unattached cells, cell remnants and extracellular parasi...

Toxoplasmosis is a zoonotic infection caused by Toxoplasma gondii, a protozoan belonging to family Toxoplasmidae and Class Toxoplasmida(1). T. gondii was described by Nicolle and Manceaux(2) in a small North African rodent Ctenodactylus gondii. It has a world-wide distribution, but frequency of infection in man and animals varies from country to country. In general, the prevalence rate of infec...

BACKGROUND Toxoplasma gondii is the most common parasite causing latent cerebral infections in human. It has been shown that some anti-psychotic drugs are able to inhibit the proliferation of the parasite in in vitro study. There is very limited data regarding the inhibitory effect of anti-psychotics on Toxoplasma in in vivo. In this study, we evaluated anti-Toxoplasma activity of fluphenazine ...

BACKGROUND Toxoplasma gondii is an obligate intracellular protozoan parasite, capable of infecting all species of mammals including man. Congenital toxoplasmosis is more important during pregnancy for the first time. In this study we expressed and purified P43 Toxoplasma gondii tachyzoite and bradyzoite specific surface antigen. METHODS The recombinant pGEMEX-1 contained Toxoplasma P43 coding...

A possible role for Toxoplasma gondii in the etiopathogenesis of schizophrenia is supported by epidemiological studies and animal models of infection. However, recent studies attempting to link Toxoplasma to schizophrenia have yielded mixed results. We performed a nested case-control study measured serological evidence of exposure to Toxoplasma gondii in a cohort of 2052 individuals. Within thi...

This article is an attempt to identify the most significant highlights of Toxoplasma research over the last 25 years. It has been a period of enormous progress and the top 25 most significant advances, in the view of this author, are described. These range from the bench to the bedside and represent a tremendous body of work from countless investigators. And, having laid out so much that has be...

Toxoplasma gondii isolates can be grouped into 3 genetic lineages. Type I isolates are considered more virulent in outbred mice and have been isolated predominantly from clinical cases of human toxoplasmosis, whereas types II and III isolates are considered less virulent for mice and are found in humans and food animals. Little is known of genotypes of T. gondii isolates from wild animals. In t...

Toxoplasmosis is caused by the intracellular protozoan Toxoplasma gondii. It is anopportunistic zoonosis in warm-blooded animals and humans, with a worldwide distribution. Toxoplasma gondii dense granule protein 16 (TgGRA16) can modulate some functions in host cells and is considered a significant virulent factor of the parasite. The present study reports sequence variation in TgGRA16 gene amon...

Background: Congenital toxoplasmosis results from vertical transmission of the Toxoplasma gondii parasite mother to fetus after a primary maternal infection. The risk fetal contamination is higher later term Conversely, severe infection decreases with term; third trimester infections are most often asymptomatic at birth.