نتایج جستجو برای: sag1
تعداد نتایج: 216 فیلتر نتایج به سال:
زمینه و هدف: بیماری توکسوپلاسموزیس توسط تک یاخته انگلی به نام توکسوپلاسماگوندی(toxoplasma gondii) ایجاد می شود.sag1(surface antigen 1)، آنتی ژن اختصاصی ـ مرحله ای است که فقط در مرحله تاکی زوئیت وجود دارد و در مراحل اسپوروزئیت و برادی زوئیت وجود ندارد و به مقدار فراوان و به طور یکنواخت بر روی سطح داخل و خارج سلولی تاکی زوئیت ها توزیع شده است. این آنتی ژن دارای دو گلیکوفرم است و آنتی ژن، کاملاً co...
BACKGROUND The assays currently available for the detection of specific anti-Toxoplasma antibodies may vary in their abilities to detect serum immunoglobulins, due to the Lack of a purified standardized antigen. The aim of this study was evaluation the recombinant Toxoplasma gondii SAG1 antigen for the serodiagnosis of acute and chronic toxoplasmosis. METHODS This study describes an ELISA usi...
background: the assays currently available for the detection of specific anti- toxoplasma antibodies may vary in their abilities to detect serum immunoglobulins, due to the lack of a purified standardized antigen. the aim of this study was evaluation the recombinant toxoplasma gondii sag1 antigen for the serodiagnosis of acute and chronic toxoplasmosis. methods : this study describes an elisa u...
results the results showed that sensitivity and specificity were respectively 84.12% and 92% for recombinant protein srs3 and 92% and 96% for rsag1. conclusions recombinant proteins srs3 and rsag1 are promising antigens in diagnostic assays for detection of specific antibodies against t. gondii. background infections by the protozoan parasite toxoplasma gondii (t. gondii) are widely prevalent ...
The objective of this work was to develop an antibody-specific immunoglobulin G (IgG) avidity assay to discriminate between acute and latent phases of Toxoplasma gondii infection by using recombinant antigens. One hundred twenty-one serum samples from women who developed IgG antibodies against Toxoplasma during pregnancy were used. The IgG avidities of antibodies directed against epitopes carri...
Toxoplasmosis is a major public health problem and the development of a human vaccine is of high priority. Efficient vaccination against Toxoplasma gondii requires both a mucosal and systemic Th1 immune response. Moreover, dendritic cells play a critical role in orchestrating the innate immune functions and driving specific adaptive immunity to T. gondii. In this study, we explore an original v...
Toxoplasma gondii infection in marine mammals is intriguing and indicative of contamination of the ocean environment and coastal waters with oocysts. Toxoplasma gondii infection was detected in captive marine mammals at a sea aquarium in Canada. Antibodies to T. gondii were found in all 7 bottlenose dolphins (Tursiops truncatus) tested. Two of these dolphins, as well as a walrus (Odobenus rosma...
PURPOSE Surface antigen 3 (SAG3) of Toxoplasma gondii is very similar in structure to the major surface antigen 1 (SAG1). Although numerous studies have supported the importance of SAG1 in protection against T. gondii infection, few reports exist on SAG3. MATERIALS AND METHODS Glutathione-S-transferase (GST)-fused SAG3 of T. gondii (rSAG3) were immunized into BALB/c mice alone or in combinati...
چکیده توکسوپلاسماگوندئی، یک انگل داخل سلولی است، که قدرت آلوده کردن اکثر مهره داران خونگرم را دارا می باشد. گربه سانان مخصوصاً گربه های اهلی، مهم ترین مخزن این تک یاخته برای انسان و دیگر حیوانات به شمار می روند. توکسوپلاسما گوندئی تنوع ژنتیکی بالایی دارد. روش های تشخیصی متعددی جهت تشخیص این عفونت طراحی شده اند که از بین آن ها، روش الایزای مبتنی بر آنتی ژن خالص شده، به لحاظ سهولت، کمی بودن و امک...
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