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Immunosuppressive protocol with delayed use of low-dose tacrolimus after aortic transplantation suppresses donor-specific anti-MHC class I and class II antibody production in ratsMatia, Ivan, Fellmer, Peter, Splith, Katrin, Varga, Martin, Adamec, Milos, Kämmerer, Ines, Feldbrügge, Linda, Krenzien, Felix, Hau, Hans-Michael, Atanasov, Georgi, Schmelzle, Moritz, Jonas, Sven 12 May 2014 (has links) (PDF)
Background: Arterial allografts are used as vascular conduits in the treatment of prosthetic graft infection. Immunosuppression
decreases their rupture risk rate. However, immunosuppression can be unprofitable in florid infection. Previously, we confirmed inhibition of cell-mediated destruction of rat aortic grafts by delayed use of tacrolimus. In this work, we studied the influence of this protocol on the antibody-mediated rejection.
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Immunosuppressive protocol with delayed use of low-dose tacrolimus after aortic transplantation suppresses donor-specific anti-MHC class I and class II antibody production in ratsMatia, Ivan, Fellmer, Peter, Splith, Katrin, Varga, Martin, Adamec, Milos, Kämmerer, Ines, Feldbrügge, Linda, Krenzien, Felix, Hau, Hans-Michael, Atanasov, Georgi, Schmelzle, Moritz, Jonas, Sven January 2014 (has links)
Background: Arterial allografts are used as vascular conduits in the treatment of prosthetic graft infection. Immunosuppression
decreases their rupture risk rate. However, immunosuppression can be unprofitable in florid infection. Previously, we confirmed inhibition of cell-mediated destruction of rat aortic grafts by delayed use of tacrolimus. In this work, we studied the influence of this protocol on the antibody-mediated rejection.
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Imunosuprese po transplantaci kryokonzervovaných tepenných alloštěpů v experimentu. / Immunosuppressive protocols after cryopreserved aortal allotransplantation in rats.Špunda, Rudolf January 2019 (has links)
The aim of our study was to simulate in rats all aspects and techniques used in our new clinical program of cryopreserved alloarterial transplantation and investigate the influence of two immunosuppressive protocols with tacrolimus on acute rejection of these allografts. Cryopreserved abdominal aortic grafts were transplanted between Brown-Norway and Lewis rats. Tacrolimus (0,2 mg/kg daily) was administered from day 1 to day 30 (TAC1) or from day 7 to day 30 (TAC7), respectively. No immunosuppressed isogeneic (ISO) and allogeneic (ALO) rats combination served as control. Aortal wall destruction and infiltration by immunocompetent cells (MHC II+ cells of recipient origin) was studied on day 30 after transplantation. Flow cytometry was used for the analysis of day 30 sera for the presence of donor specific anti-MHC class I and II antibodies. The aortal allografts in both immunosuppressed groups showed regular morphology of aortal wall with no depositions of immunoglobulin G on day 30. The adventitial infiltration of non-immunosuppressed aortal allografts by MHC class II positive cells of recipient origin was significantly higher (ALO 20,7±6,7 cells, P <0,001) compared to both immunosuppressed groups (TAC1 5,9±5,5 cells, TAC7 6,1±5,1 cells). Anti-MHC antibodies class I and II level in peripheral blood...
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