Background: Matrix metalloproteinase-9 (MMP-9) expression has been implicated in molecular mechanisms of neurodegenerative disorders, and its abnormal level has been reported in Alzheimer’s disease (AD). Some protective mechanisms of statins against neurodegeneration might be mediated by the inhibition of MMP-9 expression. Here, we investigated the effect of simvastatin, on the hippocampal MMP-...

background: it is not yet known which types of toll-like receptors (tlrs) are most effective in helicobacter pylori (h. pylori) recognition. it is also not known which gastric zones have the most prominent roles in tlr-mediated bacterial recognition. the aim of this work was to analyze the expression of tlr2 and tlr4 in biopsy specimens from h. pylori-infected patients. methods: thirty-eight pa...

background: treatment of cutaneous leishmaniasis (cl) is being faced with serious difficulties in fars province, due to emerging of resistance against meglumine antimonite (glucantime®). in this context, determining some biomarkers for drug sensitivity monitoring seems to be highly essential. different studies have been carried out to decipher the genes might be involved in antimony resistant p...

humans are equipped with some universal or language-specific abilities to recognize emotions. however, because of the different emotional contents in diverse languages and the relevant cultural differences, humans with different cultural backgrounds own different metapragmatical abilities to recognize and express emotions. a hypothesis concerning emotional effects about intonation and particle ...

Objective(s): Oxidative stress has been established as a key cause of alcohol-induced hepatotoxicity. Licochalcone B, an extract of licorice root, has shown antioxidative properties. This study was to investigate the effects and mechanisms of licochalcone B in ethanol-induced hepatic injury in an in vitro study. Materials and Methods: An in vitro model of Ethanol-induced cytotoxicity in BRL cel...

Background: Development of cloned bovine embryos. Materials and Methods: Oocytes collection,oocyte denudation, oocyte enucleation, nuclear transfer, electrofusion, reconstructed embryo activation, culture of reconstructed and IVF embryo,and treatment with SAH post fusion interval Treatment of reconstructed embryos with TSA for 12 hours after activation, preparation of somatic donor cells, donor...

Background & Target: Ischemia Reperfusion injury is the tissue damage caused when blood supply returns to the tissue after a period of ischemia or lack of oxygen. In this study, the effect of pentoxyfylline on bcl2 gene expression changes and cell injury in kidney of rat following Ischemia Reperfusion were evaluated.Methods: In this experimental study, 20 male wistar rats with average weight of...

The ribosome is a large complex catalyst responsible for the synthesis of new proteins, an essential function for life. New proteins emerge from the ribosome through an exit tunnel as nascent polypeptide chains. Recent findings indicate that tunnel interactions with the nascent polypeptide chain might be relevant for the regulation of translation. However, the specific ribosomal structural feat...

This paper focuses on designing a tool for guiding a group of people out of a public building when they are faced with dangerous situations that require immediate evacuation. Despite architectural attempts to produce safe floor plans and exit door placements, people will still commit to fatal route decisions. Since they have access to global views, we believe supervisory people in the control r...