David J. White

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Infectious and inflammatory diseases have repeatedly shown strong genetic associations within the major histocompatibility complex (MHC); however, the basis for these associations remains elusive. To define host genetic effects on the outcome of a chronic viral infection, we performed genome-wide association analysis in a multiethnic cohort of HIV-1(More)
Seven patients on dialysis with renal failure received transplants from mismatched cadaver donors and were treated with cyclosporin A (CyA), initially as the sole immunosuppressive agent. CyA was effective in inhibiting rejection but there was clear evidence of both nephrotoxicity and hepatotoxicity. A cyclophosphamide analogue was added to the CyA(More)
We transplanted kidneys from alpha1,3-galactosyltransferase knockout (GalT-KO) pigs into six baboons using two different immunosuppressive regimens, but most of the baboons died from severe acute humoral xenograft rejection. Circulating induced antibodies to non-Gal antigens were markedly elevated at rejection, which mediated strong complement-dependent(More)
BACKGROUND Porcine islets offer an attractive alternative to human islets in clinical islet transplantation. The preferred method of islet transplantation is intra-portal injection into the liver. We have recently shown, both in vitro with human islets and in vivo with porcine islets, that islets exposed to allogeneic blood trigger an injurious inflammatory(More)
An active role of T regulatory cells (Treg) and tolerogenic dendritic cells (Tol-DC) is believed important for the induction and maintenance of transplantation tolerance. However, interactions between these cells remain unclear. We induced donor-specific tolerance in a fully MHC-mismatched murine model of cardiac transplantation by simultaneously targeting(More)
OBJECTIVE To determine the concentrations of nevirapine (NVP), lamivudine (3TC) and stavudine (D4T) in seminal and blood plasma in HIV-1-infected men. METHODS Twelve HIV-1-infected men on NVP-containing regimens including 3TC (n = 8) or D4T (n = 11) provided 23 blood plasma and 22 seminal plasma samples for drug concentration and viral load quantitation.(More)
BACKGROUND It is not known whether the pig liver is capable of functioning efficiently when transplanted into a primate, neither is there experience in transplanting a liver from a transgenic pigs expressing the human complement regulator human complement regulator decay accelerating factor (h-DAF) into a baboon. The objective of this study was to determine(More)
BACKGROUND Some patients with obstructive sleep apnea/hypopnea syndrome (OSA/HS) experience excessive sleepiness (ES) that might not resolve with nasal continuous positive airway pressure (nCPAP) treatment. OBJECTIVE The aim of the present study was to assess the efficacy and tolerability of armodafinil 150 or 250 mg QD when used as adjunctive treatment(More)
We have developed a magnetic resonance imaging (MRI) technique for imaging Feridex (superparamagnetic iron oxide [SPIO])-labeled islets of Langerhans using a standard clinical 1.5-Tesla (T) scanner and employing steady-state acquisition imaging sequence (3DFIESTA). Both porcine and rat islets were labeled with SPIO by a transfection technique using a(More)
BACKGROUND The present study was undertaken to determine the role of preformed and induced anti-non-Gal antibodies in the rejection of hDAF pig-to-baboon kidney xenotransplants after anti-Gal antibody neutralization therapy. METHODS Seven baboons received life-supporting kidney transplants from hDAF transgenic pigs. Anti-Gal antibodies were neutralized by(More)