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تعداد نتایج: 1297476 فیلتر نتایج به سال:
Researchers in Toronto and elsewhere in Canada have found that “the benefits of ART far outweigh the potential adverse effects” for both the mother and the fetus. However, in recent years, as treatment guidelines in highincome countries shift toward encouraging all HIV-positive people, regardless of CD4+ count, to initiate ART, and new drugs have become available, more research is needed to hel...
abstract this study aimed at investigating the possible relationship between self-assessment in writing and self-regulation of iranian efl learners. the main purpose of the study was not only to report and inform about this relationship, but also to investigate and find practical outcomes of the incorporation of self-assessment in writing, such as improving writing skill. the research was carr...
1 Department of Immunology, Complutense University School of Medicine and Hospital 12 de Octubre Health Research Institute, Madrid, Spain 2 Centro de Biología Molecular Severo Ochoa, Consejo Superior de Investigaciones Científicas and Universidad Autónoma, Madrid, Spain 3 Division of Immunology, Hospital General Universitario, Gregorio Marañón and Health Research Institute, Madrid, Spain 4 Divi...
Data presented here show that locidentify in the I-region of the H-2 gene complex are selectively expressed in different functional T-cell subpopulations. These loci are closely linked (or possibly identical) to loci that control immune responses. They control surface determinants which identify helper and suppressor T lymphocytes. Determinants described here on allotype suppressor T cells (Ts)...
Cutaneous T-cell lymphomas most commonly have a CD4(+) memory T-cell phenotype with relatively indolent course, but may in rare cases present with a CD8(+) cytotoxic phenotype exhibiting strikingly more aggressive clinical behavior. We present two cases of the clinically aggressive subtype of primary cutaneous epidermotropic CD8(+) cutaneous T-cell lymphoma and review the current literature, cl...
Activation studies performed with transfected T cell hybridomas and tumors revealed that chimeric molecules containing the CD3 epsilon or zeta chain intracytoplasmic portions can induce the complete effector functions normally seen only when the complete T cell receptor (TCR)/CD3 complexes of T lymphocytes are triggered. Therefore, the zeta chain, with its three antigen recognition activation m...
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