Brian J. Christian

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Bevacizumab (Avastin) is a humanized monoclonal antibody against vascular endothelial growth factor approved for use in combination with 5-fluorouracil (5-FU)-based chemotherapy for first-line treatment of metastatic colorectal cancer. The Saltz regimen (irinotecan/5-FU/leucovorin [LV]) is a first-line treatment for this indication. The objective of this(More)
A single treatment of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) (50 micrograms/kg) produced two distinct effects on adrenal steroidogenesis in rats 13 days post-treatment. In unstressed rats, the very low corticosterone levels early in the light phase (AM) increased 4-fold relative to ad libitum-fed control (ALC) rats, but the peak level of corticosterone(More)
C57BL/6 mice treated with 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD; 360 micrograms/kg) displayed a significant reduction in feed intake and body weight until just before death, when they developed ascites and subcutaneous edema. This caused body weight of the mice that died to suddenly increase during the terminal stage of toxicity. TCDD-treated mice that(More)
Changes in body weight, feed intake, hepatic cellularity, and intermediary metabolism were assessed in the mature male (450 g) rat following 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) administration. All animals were schedule-fed (8-hr feeding period/24 hr) and treated with a single oral dose of either TCDD (75 micrograms/kg) or vehicle. Blood and tissues(More)
OBJECTIVE To characterize functional and anatomic sequelae of a bleb induced by subretinal injection. METHODS Subretinal injections (100 μL) of balanced salt solution were placed in the superotemporal macula of 1 eye in 3 cynomolgus macaques. Fellow eyes received intravitreal injections (100 μL) of balanced salt solution. Fundus photography, ocular(More)
OBJECTIVE To evaluate the efficacy of systemic and intravitreous administration of VEGF Trap (aflibercept) in a nonhuman primate model of choroidal neovascularization (CNV). METHODS VEGF Trap treatment on laser-induced CNV was evaluated in 48 adult cynomolgus monkeys. In the prevention arms of the study, VEGF Trap was administered by intravenous injection(More)
Angiogenesis is a major component of the pathogenesis of various ocular diseases, including age-related macular degeneration (AMD). CNTO95 is a fully human monoclonal antibody against alpha(nu) integrins that has shown antiangiogenic properties in cynomolgus macaques and rats. Because angiogenesis inhibitors may have the potential to treat AMD, a(More)
Young adult male Sprague-Dawley rats treated with a LD95 dose of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) exhibited a progressive reduction in feed intake and body weight until death occurred 15 to 32 days post-treatment. The time course and magnitude of weight loss and lethality of pair-fed control rats were essentially identical to that of TCDD-treated(More)
This study characterized the pharmacokinetics (PK) and pharmacodynamics (PD) of sibrafiban (Ro 48-3657) in the presence of aspirin, heparin, and recombinant tissue-type plasminogen activator (rt-PA) in beagles. Sibrafiban is a double prodrug that undergoes bioconversion to the inactive prodrug Ro 48-3656 and to the active IIb/IIIa antagonist, Ro 44-3888,(More)
Normal human uroepithelial cells (lili) were transformed with sim ian virus 40 (SV40) in vitro. SV40-transformed HUC (SV-HUC) were selected by their ability to survive senescence which normally occurs in HUC between passages 4 and 6. At passage 6,100% of SV-HUC stained positive for SV40 T-antigen. The epithelial nature of SV-HUC was confirmed by positive(More)