The effect of lipopolysaccharide (LPS) on the expression of proinflammatory cytokines, interleukin (IL)-1beta, IL-6, and IL-12 in broiler chick thrombocytes was investigated. At 4 wk of age, blood samples were collected, and isolated thrombocytes were incubated with LPS for 1 h. Ribonucleic acid was extracted from the cells to examine the expression of the proinflammatory cytokines using real-t...

Introduction: Astrocytes are the most abundant glial cell type. In addition to their neurological roles, astrocytes also have immune functions. They have been involved in antigen presentation in the central nervous system (CNS). Activated astrocytes express adhesion molecules, chemokines and release several inflammatory mediators, pro-inflammatory cytokines, neurotrophic and neuroprotective fac...

In the present study the protective effect of Nigella sativa (N. sativa)on synaptic plasticity impairment induced by lipopolysaccharide (LPS) in rats was investigated. Fifty-eight rats were grouped and treated as follows: 1) control (saline), 2) LPS, 3) LPS-N. sativa,and 4) N. sativa. In a Morris water maze test, the escape latency and traveled path to find t...

To investigate the effect of autophagy on claudin-2 in lipopolysaccharide (LPS) induced hyper-permeability of intestinal epithelial cell. In human colon cancer cell line (Caco-2), the model of intestinal epithelial injury induced by LPS was established, which were LPS group, LPS combined with inhibitor of autophagy (3-Methyladenine, 3-MA) and control group. Transepithelial resistance (TER) was ...

We aimed to investigate whether peripheral low-dose lipopolysaccharide (LPS) induces the breakdown of the blood-brain barrier (BBB) and/or the activation of toll-like receptor 4 (TLR4) in the neonatal rat brain. Neonatal rats received intraperitoneal injections of low-dose LPS (0.3 mg/kg∙bw), and the BBB compromise was detected by Evans Blue extravasation and electron microscopy. Meanwhile, TLR...

To study the activation of macrophage and upregulation of costimulatory molecule of CD40 in lipopolysaccharide- (LPS-) induced acute lung injury (ALI) model, and to investigate the pathogenecy of ALI, mice were randomly divided into two groups. ALI model was created by injecting 0.2 mg/kg LPS in phosphate saline (PBS) in trachea. The pathologic changes of mice lungs were observed by HE staining...

BACKGROUND Periodontitis is an inflammatory disease caused by pathogenic microorganisms, such as Porphyromonas gingivalis, and characterized by the destruction of the periodontium. Obese individuals have an increased risk for periodontitis and show decreased serum levels of adiponectin. This in-vitro study was established to examine whether adiponectin modulates critical effects of lipopolysacc...

BACKGROUND AND PURPOSE The role in blood vessels of interleukin-10 (IL-10), a potent anti-inflammatory cytokine, is not known. Using mice with targeted deletion of the gene for IL-10 (IL-10(-/-)), we examined the hypothesis that IL-10 is a major modulator of the vascular effects of lipopolysaccharide (LPS). Methods-We examined in vitro responses of carotid arteries obtained from wild-type (129/...

Fasudil, a selective rho kinase (ROCK) inhibitor, has been reported to play a beneficial role in systemic?inflammation?in acute?lung injury, but its mechanism for ameliorating pulmonary edema and inflammation remains unclear. Using hematoxylin-and-eosin (HE) staining, immunohistochemistry, enzyme-linked immunosorbent assay, quantitative real time PCR and Western blotting, we found that fasudil ...

The aim of this study was to determine whether Desulfovibrio desulfuricans-derived LPS stimulate the release of IL-6 and IL-8 from ECs and the expression of their adhesion molecules at the transcriptional level. Confluent monolayers of HUVEC were incubated in the absence or presence of 20 microg/ml and 60 microg/ml LPSs derived from the DdT and DdA bacterial strains. Also, the simultaneous stim...