نتایج جستجو برای: irradiated tachyzoites
تعداد نتایج: 26545 فیلتر نتایج به سال:
Background and Purpose: Many studies report that Toxoplasma gondii excreted / secreted antigens (E/SA) appear to be a suitable marker for toxoplasmosis serodiagnosis. Most of these studies have used E/SA, obtained from supernatant of Toxoplasma cell culture, or by incubating tachyzoites in cell free media (RPMI-1640). The present study for the detection of Toxoplasma IgG in human serum was ev...
Toxoplasma gondii was identified in tissues of a stillborn late-term fetus from an Indo-Pacific bottlenose dolphin (Tursiops aduncus). Myocardial necrosis and nonsuppurative inflammation in the heart and nonsuppurative necrotizing encephalitis were associated with tachyzoites and tissue cysts. The diagnosis was confirmed by immunohistochemical staining with anti-T. gondii-specific polyclonal ra...
BACKGROUND Toxoplasma gondii is one of the most common causes of latent infections in humans worldwide. Detecting anti-Toxoplasma antibodies in serum using serological tests is a common method to diagnose toxoplasmosis. OBJECTIVES In the present study, an indigenous ELISA kit was prepared using tachyzoites from the RH strain of T. gondii, and its sensitivity and specificity were compared with...
In Toxoplasma gondii, cis-acting elements present in promoter sequences of genes that are stage-specifically regulated have been described. However, the nuclear factors that bind to these cis-acting elements and regulate promoter activities have not been identified. In the present study, we performed affinity purification, followed by proteomic analysis, to identify nuclear factors that bind to...
The parasite Neospora caninum is an important abortifacient agent in cattle worldwide. At present, the development of an effective and safe vaccine against bovine neosporosis is of great relevance. Recently, a new isolate of N. caninum (Nc-Spain 1 H) which was obtained from the brain of an asymptomatic congenitally infected calf, exhibited non-virulent behaviour in mouse and bovine infection mo...
Azithromycin was shown to specifically inhibit the protein synthesis of Toxoplasma gondii in experimental systems by using free tachyzoites and T. gondii-infected mouse macrophages. RNA synthesis of the parasite was not affected by azithromycin. Inhibition of protein synthesis was also proportional to the relative anti-Toxoplasma activity of three macrolides.
The diagnosis of disseminated toxoplasmosis in a 14-year-old allogeneic bone marrow recipient with graft-versus-host disease was determined by the detection of Toxoplasma gondii tachyzoites in sputum smears. Sputum analysis is a valuable alternative in the clinical assessment of pulmonary toxoplasmosis, especially when conventional invasive techniques are not practicable.
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