These studies were designed to determine the pharmacological relevance of the rabbit for the evaluation of potential effects on embryofetal development and to evaluate the placental transfer of intetumumab in rabbits. METHODS: In vitro pharmacology studies evaluated the binding of intetumumab to rabbit cells and the inhibition of vessel sprouting from rabbit aorta. For the evaluation of placental transfer, pregnant rabbits (8/group) were injected intravenously with intetumumab 50 or 100 mg/kg every 2 days from Gestation Day (GD)7 to GD19. Maternal sera, R788 fetal homogenates/sera, and amniotic
fluid were collected at necropsy on GD19 or GD28 for evaluation of intetumumab concentrations. Clinical condition of the dams was monitored and fetuses were screened for abnormalities. RESULTS: Intetumumab (5-40 mu g/mL) inhibited aortic cell adhesion to vitronectin and vessel sprouting from rabbit aortic rings. Immunohistochemical staining of rabbit tissues demonstrated binding of intetumumab to placenta. Administration of intetumumab to pregnant rabbits was well tolerated by the dams and the fetuses did not show major abnormalities. Fetal exposure to intetumumab relative
to maternal exposure was <0.1% on GD19 and 100-130% on GD29. CONCLUSIONS: The rabbit is a pharmacologically relevant species for evaluation of potential developmental effects of intetumumab. Intetumumab crosses the rabbit placenta during the fetal period (GD 19-28). Birth Defects Res (Part B) 89:116-123, 2010. (C) 2010 Wiley-Liss, Inc.”
“In Brazil, there appears to be no doubt concerning the selleck chemicals llc evils caused by Abraham Flexner, his Report, and the Flexnerian Biomedical Model (FBM), conceived and promoted by private foundations and linked to the U. S. health-industrial complex. In this article, I submit the above proposition to a rigorous critical inquiry. I begin with an overview of Flexner’s life and work. I then review various representations of the Flexnerian model
in the Brazilian literature Selleck Screening Library on health education, after which I identify inconsistencies, contradictions, and omissions by comparing the original Report to elements referring to the FBM. Finally, contrasting historical sources and imaginary representations, I analyze possibilities for interpreting the FBM as an intriguing and peculiar political mythology.”
“In order to ensure that the off-line arm of a two-arm-wheel combined inspection robot can reliably grasp the line in case of autonomous obstacle crossing, a control method is proposed for line grasping based on hand-eye visual servo. On the basis of the transmission line’s geometrical characteristics and the camera’s imaging principle, a line recognition and extraction method based on structure constraint is designed. The line’s intercept and inclination are defined in an imaging space to represent the robot’s change of pose and a law governing the pose decoupling servo control is developed.