Chitosan-coated PLGA microemulsion loaded with tannic acid against Escherichia coli in vitro and in vivo.

The overuse of antibiotics has resulted in a surge of drug-resistant bacteria, making the pursuit of natural antimicrobials an urgent and significant trend. Encapsulation and nanoparticulation are effective ways to enhance the antibacterial properties of natural drugs. In this study, we encapsulated tannic acid (TA) with chitosan (CS) and poly (lactide-co-glycolide) (PLGA) using the emulsion-solvent evaporation method to enhance the antimicrobial effect of TA.

Mauritone A, a new polyketide from a fungal-bacterial symbiont GXIMD 04541/ GXIMD 04532.

A new polyketide, mauritone A () with six known polyketides curvulone B (), curvularin (), 12-oxocurvularin (), (10,15)-10,11-dehydrocurvularin (), (11,15)-11-hydroxycurvularin (), and (11,15)-11-hydroxycurvularin () were isolated from the fungal-bacterial symbiont GXIMD 04541/ GXIMD 04532 derived from . Their structures were elucidated by extensive spectral analysis. All compounds (-) were evaluated for their anti-inflammatory effects.

Double-nylon purse-string suture in closing postoperative wounds following endoscopic resection of large (≥ 3 cm) gastric submucosal tumors.

Background: Endoscopic full-thickness resection (EFTR) of gastric submucosal tumors (SMTs) is safe and effective; however, postoperative wound management is equally important. Literature on suturing following EFTR for large (≥ 3 cm) SMTs is scarce and limited.

Aim: To evaluate the efficacy and clinical value of double-nylon purse-string suture in closing postoperative wounds following EFTR of large (≥ 3 cm) SMTs.

[Pollution Characteristics，Source Analysis，and Activity Analysis of Atmospheric VOCs During Winter and Summer Pollution in Zhengzhou].

In order to study the pollution characteristics of volatile organic compounds （VOCs）， continuous monitoring of VOCs in two pollution processes was conducted in June and December 2021 in Zhengzhou. Combined with meteorological conditions， the pollution characteristics， source contributions， and reactivity of VOCs in winter and summer were compared and analyzed. The results showed that the volume fraction of atmospheric VOCs in two episodes were （27.

[Evolution and Evaluation of O and VOCs in Zhengzhou During the National Traditional Games of Ethnic Minorities Period].

During the National Traditional Games of Ethnic Minorities (NTGEM) 2019, air quality in Zhengzhou was analyzed to evaluate the impact of pollution prevention and control measures on Zhengzhou. Ground-observed meteorological and pollutant data as well as the chemical compositions of volatile organic compounds (VOCs) were investigated. The results showed that the six parameters of pollutants in the safeguard period in 2019 indicated a downward trend as compared with that during the same time in 2018, and the average concentrations of PM and PM were decreased by 16.

[Characteristics and Source Apportionment of VOCs at Different Pollution Levels During the Winter in an Urban Area in Zhengzhou].

In this study, volatile organic compound (VOC) species were measured at an urban site in Zhengzhou from January 3 to 23, 2019, to investigate the composition, variation characteristics, sources, and effects on secondary organic aerosol (SOA) formation of VOCs at different pollution levels. Results showed that oxygenated VOCs and alkanes were the main components of VOCs, while ethyl acetate and acetone were the most abundant species. During the process from clean days to heavy pollution days, the mixing ratio of VOCs approximately doubled, and the mixing ratios of most species continued to increase as the pollution level increased.

Biopromoters for Gas Hydrate Formation: A Mini Review of Current Status.

Gas hydrates have promising application prospects in the fields of future energy sources, natural gas storage and transportation, CO capture and sequestration, gas separation, and cold energy. However, the application of hydrate technologies is being restricted due to the slow formation rate of gas hydrates. Kinetic promoters have been receiving increased attention, given that they can improve the hydrate formation rate with very small doses and do not affect gas storage capacity.

[Ambient VOCs Characteristics, Ozone Formation Potential, and Source Apportionment of Air Pollution in Spring in Zhengzhou].

Ambient volatile organic compounds (VOCs) were determined by GC 5000 online gas chromatography in the urban site of Zhengzhou from April 15 to May 15, 2018. Based on chemical composition analysis, in this study, the concentrations, ozone formation potential (OFP), and source apportionment were studied. The results show that the averaged volume fraction of VOCs in Zhengzhou during spring was 40.

[Characteristic of Surface Ozone and Meteorological Parameters Analysis in Anyang City].

This study uses the national ambient air quality station data of Anyang City from 2014 to 2017 to analyze the characteristics and variation rules of ozone (O) in different functional zones (urban, suburban, and industrial), and also studies meteorological influencing factors and potential source distributions of O pollution. The results showed that the O concentration in Anyang increased significantly between 2014 and 2017, whereby pollution started to advance from 2015 and the earliest occurrence of an O pollution episode was in April 2017. The 90 percentile and average concentrations of O in the industrial zone increased at faster rates (average annual growth of 16.

[A 2013-based Atmospheric Ammonia Emission Inventory and Its Characteristic of Spatial Distribution in Henan Province].

Based on the best available activity data at a city level from top down and bottom up methods, a 2013-based emission inventory of NH was established for the Henan Province using an emission factors method. The 3 km×3 km spatial gridded distribution was carried out by using GIS technology. The results showed that the total amount of atmospheric NH emission in Henan Province in 2013 was 1035.

CARD3 deficiency protects against colitis through reduced epithelial cell apoptosis.

Background: Caspase activation and recruitment domain 3 (CARD3) is a 61-kDa protein kinase. Recent evidence shows the importance of CARD3 in the immune response and inflammatory diseases. To elucidate its impact on inflammatory bowel disease, we studied the effects of the loss of CARD3 in the acute dextran sodium sulfate-induced colitis.

Expression and clinical significance of matrix metalloproteinase-17 and -25 in gastric cancer.

The aim of the present study was to investigate the expression and clinicopathological features of matrix metalloproteinase 17 (MMP17; also known as MT4-MMP) and MMP25 (also known as MT6-MMP) in gastric cancer. Immunohistochemistry and reverse transcription-quantitative polymerase chain reaction were used to detect the expression of MMP17 and MMP25 in 42 cases of gastric carcinoma and normal tissues, and 40 cases of atrophic gastritis. The expression of MMP17 in the normal gastric and atrophic gastritis tissues was significantly lower than that in the gastric cancer tissues (P<0.

Adiponectin polymorphisms and non-alcoholic fatty liver disease risk: a meta-analysis.

Background And Aim: The adiponectin polymorphism has been implicated in susceptibility to non-alcoholic fatty liver disease (NAFLD), but the results remain inconclusive. The aim of this meta-analysis is to investigate the association between adiponectin polymorphisms and NAFLD risk.

Methods: All eligible case-control studies published up to September 2013 were identified by searching PubMed, Web of Science, and CNKI.

TNF-α-308 polymorphism and risk of digestive system cancers: a meta-analysis.

Aim: To evaluate the association between the tumour necrosis factor alpha-308 (TNF-α-308) gene polymorphism and the risk of digestive system cancers.

Methods: All eligible case-control studies published up to December 2012 were identified by searching PubMed, Web of Science, Embase and China National Knowledge Internet without language restrictions. The risk of digestive system cancers associated with the TNF-α-308 polymorphism was estimated for each study using odds ratio (OR) together with its 95%CI, respectively.

Meta-analysis of the ADH1B and ALDH2 polymorphisms and the risk of colorectal cancer in East Asians.

Objective: The aldehyde dehydrogenase 2 (ALDH2) and alcohol dehydrogenase 1B (ADH1B) genes have been implicated in the development of colorectal cancer (CRC). However, the results are inconsistent. In this study, a meta-analysis was performed to assess the associations between the ALDH2 and ADH1B polymorphisms and the risk of CRC.

Endoscopic submucosal dissection for early gastric cancer using endoscopy with Fuji Intelligent Color Enhancement.

Demarcation of early gastric cancers is sometimes unclear. Indigo carmine chromoendoscopy has usually been used as a diagnostic method for tumor margins as it enhances mucosal irregularities and differences in color. Fuji Intelligent Color Enhancement (FICE), a recently developed virtual chromoendoscopic system, can explore the entire mucosal surface (of structures and vessels).