Oral Lactobacillus zeae exacerbates the pathological manifestation of periodontitis in a mouse model.

Introduction: The worldwide prevalence of periodontitis is considerably high, and its pathogenic mechanisms must be investigated and understood in order to improve clinical treatment outcomes and reduce the disease prevalence and burden. The exacerbation of the host immune system induced by oral microbial dysbiosis and the subsequent tissue destruction are the hallmarks of the periodontitis. However, the oral bacteria involved in periodontitis are not fully understood.

Bisulfite reduction of soil iron for the reductive degradation of trichloroethylene.

This study explored the potential reactivities of various reductants in inducing subsurface TCE degradation in natural soils. It was found that bisulfite (HSO) exhibited the ability to induce reduction in soil iron minerals, and increase the degradation of TCE in the soil slurry system; however, no TCE degradation occurred in the aqueous system. The role of TCE degradation by soil constituents, such as major soil mineral elements, Fe and humic acid (HA) on HSO, was examined in aqueous phase.

Thermoresponsive Polymers of Poly(2-(-alkylacrylamide)ethyl acetate)s.

Thermoresponsive poly(2-(-alkylacrylamide) ethyl acetate)s with different -alkyl groups, including poly(2-(-methylacrylamide) ethyl acetate) (PNMAAEA), poly(2-(-ethylacrylamide) ethyl acetate) (PNEAAEA), and poly(2-(-propylacrylamide) ethyl acetate) (PNPAAEA), as well as poly(-acetoxylethylacrylamide) (PNAEAA), were synthesized by solution RAFT polymerization. Unexpectedly, it was found that there are induction periods in the RAFT polymerization of these monomers, and the induction time correlates with the length of the -alkyl groups in the monomers and follows the order of NAEAA < NMAAEA < NEAAEA < NPAAEA. The solubility of poly(2-(-alkylacrylamide) ethyl acetate)s in water is also firmly dependent on the length of the -alkyl groups.

Passive membrane sampler for assessing VOCs contamination in unsaturated and saturated media.

Passive sampling (PS) is a method employed to detect volatile organic compounds in groundwater and soil gas. This study attempted to manufacture a polydimethylsiloxane (PDMS) dialysis passive sampler for potential application in detecting trichloroethylene (TCE) in aqueous and gaseous phases. The equilibrium time of the passive sampler was initially determined, followed by multilayer passive sampling in a three-dimensional sandbox to construct a tomography of TCE vapor spatial distribution in the vadose zone above the saturated water level.

Differential proteomic analysis of renal tissue in mesangial proliferative glomerulonephritis using iTRAQ technology.

Background: Mesangial proliferative glomerulonephritis (MePGN) is characterized by excessive mesangial cell proliferation and mesangial matrix expansion, which lead to glomerular sclerosis and obliteration and, in turn, to deteriorating renal function. To identify and quantify the total proteins in renal tissues of MePGN patients, we used isobaric tags for relative and absolute quantification (iTRAQ) technology, and then looked for differentially expressed proteome profiles in MePGN patients.

Methods: Eight-plex iTRAQ coupled with multiple chromatographic fractionation and tandem mass spectrometry was used to analyze total proteins in renal tissues of MePGN patients.