نتایج جستجو برای: thymus citriodorus
تعداد نتایج: 16143 فیلتر نتایج به سال:
A synergistic interaction in the proliferative response to alloantigen has been previously noted when intact thymus cells are cultured with post-thymic (peripheral) lymphoid cells. In the present study, a factor extracted from the thymus has been shown to similarly enhance the reactivity of syngeneic lymph node cells and thus to retain the amplifier activity of intact thymus cells. The factor h...
Eosinophils differentiate and mature in the thymus, outside of bone marrow, healthy individuals. Locally developed thymic eosinophils may contribute to maturation selection human thymocytes.
Although T cells arise in the thymus, migration of mature postthymic T cells back to the thymus is very limited in adult mice and is restricted to activated cells. In neonates, by contrast, we present evidence that circulating CD4+ and CD8+ T cells with a naive/resting phenotype readily enter the thymus after intravenous injection and remain there for prolonged periods. The migration of resting...
Dustin and Auerbach7 considered that lymphocytes initially arose from the el)ithelium of the thymus anlage, while Maximow thought they were derived from associated mesenchymal cells.8 In the adult thymus, the lymphocytes would come chiefly from divisions of preexisting lymphocytes and occasionallv from reticular ceIls2,6,M ( which may he either epithelial or mesenchyrnalt’). In the course of ou...
The thymus is a vertebrate-specific organ where T lymphocytes are generated. Genetic programs that lead to thymus development are incompletely understood. We previously screened ethylnitrosourea-induced medaka mutants for recessive defects in thymus development. Here we report that one of those mutants is caused by a missense mutation in a gene encoding the previously uncharacterized protein WD...
Previous studies revealed that thymus is a targeted immune organ in malnutrition, and high-boron stress is harmful for immune organs. African ostrich is the living fossil of ancient birds and the food animals in modern life. There is no report about the effect of boron intake on thymus of ostrich. The purpose of present study was to evaluate the effect of excessive boron stress on ostrich thymu...
جنس thymus از خانواده lamiaceae بیش از 215 گونه مختلف آن در سراسر جهان یافت می شود. این جنس در ایران شامل 18 گونه معطر و چند ساله است که از میان آنها 4 گونه انحصاری ایران هستند. گونه های مختلف آویشن در صنایع غذایی، دارویی و آرایشی مورد استفاده قرار می گیرند. این پژوهش به منظور آشنایی با نحوه کاشت، داشت، برداشت، سازگاری و تولید گونه های مختلف جنس آویشن برای مصارف سنتی و تأمین مواد اولیه برای کار...
RATIONALE Chorioamnionitis is associated with preterm delivery and involution of the fetal thymus. Women at risk of preterm delivery receive antenatal corticosteroids which accelerate fetal lung maturation and improve neonatal outcome. However, the effects of antenatal corticosteroids on the fetal thymus in the settings of chorioamnionitis are largely unknown. We hypothesized that intra-amnioti...
The role of mesenchymal stromal cells (MSCs) in regulating immune responses in the thymus is currently unclear. Here we report the existence and role of a MSC population in the thymus that expresses the pericyte and MSC marker CD248 (endosialin). We show using a CD248-deficient mouse model, that CD248 expression on these cells is required for full post-natal thymus development and regeneration ...
The thymus is required for T cell differentiation; a process that depends on which antigens are encountered by thymocytes, the environment surrounding the differentiating cells, and the thymic architecture. These features are altered by local infection of the thymus and by the inflammatory mediators that accompany systemic infection. Although once believed to be an immune privileged site, it is...
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