The optical density (OD) measurement showed better bactericidal activity at higher level of Co doping in ZnO. (C) 2015 Elsevier B.V. All rights reserved.”
“Longitudinal studies collect information on a sample of individuals which is followed over time to analyze the effects of individual and time-dependent characteristics oil the observed
response. These studies often Suffer from attrition: individuals drop out of the Study before its completion time and thus S63845 present incomplete data records. When the missing mechanism, once conditioned oil other (observed) variables, does not depend Oil Current (eventually unobserved) values of the response variable, the dropout mechanism is known to he ignorable. We propose a selection model extending semiparametric variance component models for longitudinal binary responses to allow for dependence between the missing data mechanism and the primary response
process. The model is applied to a data set from a methadone maintenance treatment programme held in Sidney, 1986. Copyright (C) 2009 John Wiley & Sons, Ltd.”
“Di-2-ethylhexyl phthalate (DEHP), one of the most widely used plasticizers in a number of day-life products, exerts both short-term and long-lasting effects on testicular steroidogenesis during in utero exposure. These actions might be caused by its AC220 mouse primary metabolite, mono-(2-ethylhexyl) phthalate (MEHP). In the present study, we investigated the effects of MEHP on steroidogenesis of different stages of rat see more Leydig cells, progenitor (PLCs), immature (ILCs) and adult (ALCs). Results showed that MEHP affected reactive oxygen species (ROS) generation as well as androgen production in ALCs, but not in PLCs and ILCs, which coincided with hydrogen peroxide (H2O2). Low concentrations of MEHP (20-200 mu M) provoked ROS perturbation and caused the stimulation of steroidogenic acute regulatory (StAR), cytochrome P450 side-chain cleavage (P450scc), 3 beta-hydroxysteroid dehydrogenases (3 beta-HSD) and 17 beta-hydroxysteroid dehydrogenases (17 beta-HSD) activities which elevated T production of ALCs. Contrast to the effect in low doses,
high levels of MEHP (2000 mu M and over) induced overloaded oxidative stress and inhibited steroidogenesis by reducing the activities of these enzymes in ALCs. These results indicated that oxidative stress and subsequent steroidogenic enzymes changes in ALCs were the potential underlying mechanism of the biphasic effects of DEHP on androgen production. (c) 2012 Elsevier Ltd. All rights reserved.”
“Background: Statins have been suggested as a potential treatment for psoriasis because of their anti-inflammatory properties. However, evidence on the benefits of statins is scarce.\n\nObjective: We sought to study the association between use of statins or other lipid-lowering agents and the risk of developing psoriasis.