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Acute rejection is a category of rejection that occurs on the timescale of weeks to months, with most episodes occurring within the first 3 months to 1 year after transplantation. [ 6 ] [ 8 ] Unlike hyperacute rejection, acute rejection is thought to arise from two distinct immunological mechanisms as lymphocytes , a subset of white blood cells ...
Anti-thymocyte globulin (ATG) is an infusion of horse or rabbit-derived antibodies against human T cells and their precursors , which is used in the prevention and treatment of acute rejection in organ transplantation and therapy of aplastic anemia due to bone marrow insufficiency.
The acute or fulminant form of the disease (aGvHD) is normally observed within the first 10 to 100 days post-transplant, [9] [10] and is a major challenge to transplants owing to associated morbidity and mortality. [11] About one-third to one-half of allogeneic transplant recipients will develop acute GvHD. [10]
Acute cellular rejection occurs when the recipient's T lymphocytes are activated by the donor tissue, causing damage via mechanisms such as direct cytotoxicity from CD8 cells. Acute humoral rejection and chronic disfunction occurs when the recipient's anti-HLA antibodies form directed at HLA molecules present on endothelial cells of the ...
Lung transplantation is the therapeutic measure of last resort for patients with end-stage lung disease who have exhausted all other available treatments without improvement. A variety of conditions may make such surgery necessary. As of 2005, the most common reasons for lung transplantation in the United States were: [2]
In the case of ABOi renal transplantation, aggressive antibody removal is required, along with supplemental medication, with the resulting condition being termed "accommodation." [10] While such recipients are more likely to require re-transplantation early on, long-term graft survival is similar to recipients who receive ABOc kidneys. [19]
Rejection mediated by T lymphocytes sensitized by direct allorecognition pathway is predominant in the short period after the transplantation, but usually subsides with depletion of passenger cells while indirect recognition contributes to continuing graft damage and plays role in chronic rejection.
Basiliximab is indicated for the prophylaxis of acute organ rejection in de-novo allogeneic renal transplantation. [3] It is to be used concomitantly with ciclosporin for microemulsion- and corticosteroid-based immunosuppression, in people with panel reactive antibodies less than 80%, or in a triple maintenance immunosuppressive regimen containing ciclosporin for microemulsion, corticosteroids ...