Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 10 of 10 for “"tissue cysts"”.
-
A light and electron microscope investigation of the host-parasite relationship in the brains of mice with congenital toxoplasmosis.
Impregnation of the wall of intact tissue cysts in the brains of mice with congenital toxoplasmosis, with reduced silver salts and protargol silver suggested that it was composed, at least in part, of components derived from the neuronal cytoskeleton. Electron microscopy extended these observations …
-
Separação imunomagnética de cistos teciduais e esporocistos de toxoplasma gondii pelo anticorpo monoclonal K8/15-15 e caracterização de sua proteína alvo por Western Blot e Imunoblot
… of T. gondii occurs more often by ingestion of tissue cysts containing bradyzoites and/or ingestion of sporulated oocysts. The current study aimed to develop a protocol of immunomagnetic separation (IMS) directed to T. gondii tissue cysts and soporocysts, and to isolate the protein recognized by …
-
Characterizing Cystoisospora canis as a Model of Apicomplexan Tissue Cyst Formation and Reactivation
… intestine of dogs. C. canis produces monozoic tissue cysts (MZT) that are similar to the polyzoic tissue cysts (PZT) of Toxoplasma gondii, a parasite of medical and veterinary importance, which can reactivate and cause toxoplasmic encephalitis. We hypothesized that C. canis is similar …
-
Effects of Methylmercury Exposure on the Immune and Neurological Responses of Mice to Toxoplasma gondii Infection
… become infected with T. gondii by ingesting tissue cysts in undercooked meats or by ingesting oocysts excreted by cats. Methylmercury (MeHg) is a well-documented neurotoxicant that accumulates in the brain and causes severe mental and visual dysfunction, including chronic encephalopathy. …
-
Increased Severity of Murine Infection with Toxioplasma Gondii Following Vitaman E and Selenium Supplementatoin
… female Swiss Webster mice were infected with oocysts of the Me49 strain of Toxoplasma gondii while receiving diets supplemented with vitamin E alone or in combination with selenium, or a diet deficient in both nutrients. In the second phase of the study, 25 C57BL/6J mice were infected …
-
Sex-influenced histopathological changes and the immunity during Toxoplasma gondii infection
… effects on health and mortality. Brain tissue of male and female mice chronically infected with T. gondii cysts were compared by using histopathological examination and RNAseq technologies to determine transcriptomic changes. The data indicate that female mice had increased pathology and …
-
Role of CD4+CD25+ Regulatory T Lymphocytes in Experimental Toxoplasmosis
… a second time 1 day prior to infection, with 20 tissue cysts of T. gondii. Mouse weight and tissue cyst numbers were monitored to evaluate the impact of Treg depletion on the outcome of infection. Our results suggest that depletion of Treg cells has little measurable impact during the acute stage …
-
AP2IX-4, a Cell Cycle Regulated Nuclear Factor, Modulates Gene Expression During Bradyzoite Development in Toxoplasma Gondii
… intracellular parasite converts into a latent tissue cyst form known as the bradyzoite, which is impervious to the immune response. The tissue cysts facilitate wide-spread transmission through the food chain and give rise to chronic toxoplasmosis in immune compromised patients. In addition, …
-
Development of a Canine Coccidiosis Model and the Anticoccidial Effects of a New Chemotherapeutic Agent
… (n=2) and 1 X 105 (n=20) sporulated C. canis oocysts were attempted in 22 purpose bred beagle puppies. Clinical signs associated with disease were observed in all dogs. Bacterial and viral pathogens were ruled out by transmission electron microscopy (TEM) and bacterial growth assays. Development …
-
Prevalence and Identity of Tissue Cyst Forming Apicomplexan Parasites in the Muscles of Raptors
… of Apicomplexan protozoal infections in the tissues of raptors in the United States. Protozoan encephalitis caused by Sarcocystis species and Toxoplasma gondii is being increasingly reported in raptors from various locations in the United States. To better determine the exposure of raptors to …