abstract   background: the survival curves generally have been used for analysis of cell survival under stress conditions. they depict the relationship between the fraction of cells retaining their reproductive integrity and the absorbed dose. the median lethal dose, lethal concentration, 50% (lc 50 ) of a  toxin ,  radiation , or  pathogen  is the  dose required to kill half the members of a t...

adequate bond strength between glass ionomer cements and composite resin is necessary for the success of the sandwich technique.this study assessed the micro-shear bond strength of composite resin to glass-ionomer cements (gic) using self-etch adhesives with different ph values.one hundred specimens (6×4×2 mm) were made using fuji ii and fuji ii lc gics and treated with different adhesives as f...

background as most hbv-related acute-on-chronic liver failure (aclf) have concurrent cirrhosis, it is important to clarify the association of viral factors with aclf with or without cirrhosis. objectives the aim of this study was to analyze the association of hbv genotypes and mutations with aclf development underlying different chronic liver diseases. patients and methods eighty-seven aclf pat...

objective: lc/na system is activator of hypothalamic–pituitar–adrenal (hpa) axis and cold stress triggers an equally robust increase in plasma na. increased lhrh content probably due to absence or decrease of ne release from the lc and positive feedback action of e2 on lh secretion show that in late proestrous phase na, lh and e2 have a strong link. this study was conducted to evaluate the effe...

&&act-The active RC simulation of LC filters is of interest, due to the excellent sensitivity properties thereby obtained. Most known designs of active RC driving-point impedances necessary for the simulation of an LC filter, require two opamps per impedance. In this paper a method is presented that realizes general second-order driving-point impedances with only one opamp and with a minimum nu...

We generated transgenic mice in which a trans-synaptic tracer, wheat germ agglutinin (WGA), was specifically expressed in the locus coeruleus (LC) neurons under the control of the dopamine-β-hydroxylase (DBH) gene promoter. WGA protein was produced in more than 95% of the tyrosine hydroxylase (TH)-positive LC neurons sampled. Transynaptic transfer of WGA was most evident in CA3 neurons of the h...

Dendritic cells (DCs) form a network comprising different populations that initiate and differentially regulate immune responses. Langerhans cells (LCs) represent a unique population of DCs colonizing epithelium, and we present here observations suggesting that macrophage inflammatory protein (MIP)-3alpha plays a central role in LC precursor recruitment into the epithelium during inflammation. ...

Human (h)Langerin/CD207 is a C-type lectin of Langerhans cells (LC) that induces the formation of Birbeck granules (BG). In this study, we have cloned a cDNA-encoding mouse (m)Langerin. The predicted protein is 66% homologous to hLangerin with conservation of its particular features. The organization of human and mouse Langerin genes are similar, consisting of six exons, three of which encode t...