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BACKGROUND The transplantation of isolated islets of Langerhans is nearing acceptance as treatment of type 1 diabetes mellitus. Because the arterial and venous connections of the pancreas are disrupted during islet isolation, islets must be revascularized after transplantation. OBJECTIVE To observe whether increased numbers of vascular endothelial cells(More)
OBJECTIVE To explore the effects of AST (astragalosides) on cultured rat islet yield, purity, and function after cryopreservation in rats. METHODS Pancreatic islets were isolated from 30 Sprague-Dawley rats using the standard technique of collagenase P digestion and discontinuous Ficoll gradient purification. After thaw, the islets were randomly divided(More)
OBJECTIVE Pancreatic islet transplantation is an emerging therapy for type 1 diabetes. To preserve its function, transplanted islets must be revascularized because arterial and venous connections are disrupted during islet isolation. The current paradigm is that islet revascularization originates from the transplant recipient. This study was designed to(More)
OBJECTIVE We sought to explore the adjunctive effects of Cordyceps sinensis (CS) in clinical renal transplantation. MATERIALS AND METHODS Patients (n = 202) were divided randomly by lottery into a treatment (n = 93) and a control group (n = 109). Patients in the treatment group were treated with CS 1.0 g 3 times a day in addition to the immunosuppressive(More)
AIMS To investigate the pharmacokinetics of enteric-coated mycophenolate sodium (EC-MPS) and the clinical outcome in kidney transplant recipients in the early post-transplantation phase. Then explain which regimen is more suitable for Chinese renal transplant recipients. METHODOLOGY In total, 60 de novo kidney transplant recipients treated with tacrolimus(More)
OBJECTIVE Cryopreserved-thawed rat islets were cocultured with Sertoli cells to examine whether they could decrease the loss and improve islet function. METHODS Islets and Sertoli cells were harvested from the pancreas and the testis of Sprague-Dawley rats, respectively. Cryopreserved, stored islets were thawed and divided into groups of coculture with(More)
BACKGROUND Blockade of costimulatory signals has been shown to prolong allograft survival. The aim of the present study was to investigate the effect of simultaneous blockade of CD40/CD40L and CD28/B7 costimulatory pathways by replication-defective adenovirus-mediated expression of secretable extracellular domain of human CD40L (shCD40L) and CTLA4Ig to(More)
BACKGROUND B7/CD28 and CD40/CD40L have been well established as important costimulatory pathways. Cytotoxic T lymphocyte-associated antigen-4 (CTLA4) delivers negative signals to antigen-presenting cells to down-regulate proinflammatory responses and competitively inhibits the binding of B7 and CD28. Signals from the CD40/CD40L costimulatory pathway also(More)
OBJECTIVE This study aimed to determine the protective effect of 1,25-dihydroxyvitamin D3 (1,25(OH)2D3) against islet graft loss. METHODS Proliferation of tumor necrosis factor (TNF)-α-induced macrophages was determined in vitro after treatment with different concentrations of 1,25-(OH)2D3. Intraportal islet transplantation (IPIT) was performed with(More)