The role of heat shock proteins (HSP) during the inflammatory response has been controversial. The effect of heat shock (HS) on the synthesis of the monokines tumor necrosis factor (TNF) and interleukin 1 (IL-1) by endotoxin-stimulated thioglycollate-elicited peritoneal macrophages was investigated. HS was deemed to have affected macrophages if a 70 kD HSP appeared on SDS gels; identity of this...

AIMS: Hydrogen sulfide (H2S) is a vasoactive gasotransmitter that is endogenously produced in the vasculature by the enzyme cystathionine gamma-lyase (CSE). However, the importance of CSE activity and local H2S generation for ischemic vascular remodeling remains completely unknown. In this study, we examine the hypothesis that CSE critically regulates ischemic vascular remodeling involving H2S ...

The present study aimed to explore the effect of hydrogen sulfide (H2S) on renal tissue fibrosis and its mechanism in diabetic rats. Rats were randomly divided into four groups (n=13/group): Control group; induced diabetes mellitus group (STZ); induced diabetes mellitus treated with H2S group (STZ + H2S); normal rats treated with H2S group (H2S). The diabetic model was induced by intraperitonea...

The low enthalpy program developped in the Paris Basin provides the opportunity for studying the gas geochemistry of the calcareous aquifer of the Dogger. Hydrocarbons and C02 are mainly biogenic, He displays high concentrations. He, Ar and N2 have multiple origins (radioactive decay, atmospheric migration, biochemical processes). The distribution of the gases in the zones of the basin varies i...

Hydrogen sulfide (H2S) has been recently found to act as a potent priming agent. This study explored the hypothesis that hydroponic pretreatment of strawberry (Fragaria × ananassa cv. Camarosa) roots with a H2S donor, sodium hydrosulfide (NaHS; 100 μM for 48 h), could induce long-lasting priming effects and tolerance to subsequent exposure to 100mM NaCI or 10% (w/v) PEG-6000 for 7 d. Hydrogen s...

Hydrogen sulfide (H2S) has been shown to induce the activation of neurogenic inflammation especially in normal airways and urinary bladder. However, whether endogenous H2S would regulate sepsis-associated lung inflammation via substance P (SP) and its receptors remains unknown. Therefore, the aim of the study was to investigate the effect of H2S on the pulmonary level of SP in cecal ligation an...

A hyper-star graph HS(n,k) provides a promising topology for interconnection networks of parallel processing systems because it inherits the advantages of a hypercube and a star graph. In this paper, we focus on fault-tolerant routing in an HS(n,k) graph with faulty nodes and propose an algorithm to establish a fault-free path between a pair of non-faulty nodes. The algorithm uses limited globa...

laboratory scale experiments were performed to evaluate the feasibility of biofilters for the removal of h2 s from wastewater treatment plant waste air. the effects of changes in air flow rate and contaminant concentration on biofilter performance treating h 2 s odours were also assessed. compost was used as media in biofilter. the study was carried out in six different phases, by increasing h2...

The adsorption characteristics of corrosive anions (Cl?, HS?, S2?, HCO3? and CO32?) on TiO2 TC4 titanium alloy in a NaCl solution containing H2S CO2 were studied by density functional theory (DFT). stable configuration each species the (110) surface was obtained geometric optimization, electronic structure interface binding energy calculated analyzed. results showed that optimal positions Cl?, ...