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Immune System Diseases Commons

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Full-Text Articles in Immune System Diseases

Cd4+ T-Cell Mediated Microvascular Endothelial Cell Death And Chronic Cardiac Allograft Rejection Involves Necroptosis, Cecilia Yt Kwok Dec 2015

Cd4+ T-Cell Mediated Microvascular Endothelial Cell Death And Chronic Cardiac Allograft Rejection Involves Necroptosis, Cecilia Yt Kwok

Electronic Thesis and Dissertation Repository

Heart transplantation is the only viable option for patients with end-stage heart failure. Despite advances in immunosuppressive therapies, the rate of transplanted graft loss remains substantial. Graft loss is primarily due to tissue damage mediated by immune responses. Cell death and organ rejection can occur as an active molecular process through apoptotic and necrotic pathways. We now recognize that cell death may also ensue through a newly described form of programmed necrotic cell death, termed necroptosis that involves receptor-interacting protein kinase (RIPK) 1/3. In this study, I aim to establish the role of RIPK3 in T cell-mediated chronic cardiac allograft …


Granulocyte Colony-Stimulating Factor: Its Role In Gut-Homing Macrophage Generation And Colitis, And Production By Probiotics, Shahab Meshkibaf May 2015

Granulocyte Colony-Stimulating Factor: Its Role In Gut-Homing Macrophage Generation And Colitis, And Production By Probiotics, Shahab Meshkibaf

Electronic Thesis and Dissertation Repository

The pleiotropic cytokine granulocyte-colony stimulatory factor (G-CSF) is mainly required for the generation of neutrophils, but its role in macrophage generation has also been reported. In addition, G-CSF is effective for the down-regulation of inflammatory cytokines and ameliorating gut disorders, such as colitis. However, the G-CSF function in macrophage generation and gut immunity remains unclear. The first focus of this thesis was to assess the role of G-CSF in macrophage generation and its contribution to gut immunity. G-CSF was found to promote the generation of Gr-1high/F4/80+ macrophages in macrophage (M)-CSF-treated bone marrow cells, most likely through suppressing cell death. Gr-1high …


Methotrexate And Cardiovascular Events, Alpesh Shah Apr 2015

Methotrexate And Cardiovascular Events, Alpesh Shah

Electronic Thesis and Dissertation Repository

We conducted a systematic review and meta-analysis to assess the association of MTX with cardiovascular morbidity, cardiovascular mortality and all-cause mortality in patients with autoimmune disease. Our primary outcome was incident cardiovascular events. After screening 13,479 citations, we identified a total of 30 eligible studies. We synthesized adjusted risk estimates using a random effects model. MTX was significantly associated with a 25% reduction in cardiovascular events (pooled RR: 0.75, 95% CI: 0.65, 0.86, I2: 11%), a 55% reduction in cardiovascular mortality (0.45, 95% CI: 0.26, 0.80, I2: 33%) and a 40% reduction in all-cause mortality (0.60, …