569 research outputs found

    Various Self-Assembly Behaviors of Amphiphilic Molecules in Ionic Liquids

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    Effect of low molecular weight heparin and ulinastatin as a combined therapy on soluble myeloid cell expression and intestinal mucosal function in patients with severe pancreatitis

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    Purpose: To investigate the effect of low molecular weight heparins (LMWHs) and ulinastatin on soluble myeloid cells and intestinal mucosal function (IMF) in patients with severe pancreatitis. Methods: A total of 107 patients with severe pancreatitis were divided into two groups: control group (CG, n = 53) and study group (SG, n = 54). The CG was treated with LMWH while SG was similarly treated but in addition received ulinastatin simultaneously. The following parameters were evaluated in the two groups: treatment effects, IMF, time for various indicators to normalize, vascular endothelial function, complication symptoms, T lymphoid subgroup indicators, inflammatory factors, anti-inflammatory factors, soluble B7-H2, and soluble myeloid cell receptor-1 level changes. Results: After treatment, SG showed lower levels of L/M value, DAO and D-lactic acid than in CG (p < 0.05). Gastrointestinal function, leukocytes, amylase, and body temperature in SG had a shorter time to return to normal than in CG (p < 0.05). The levels of IL-10 in SG were higher than in CG, while sB7-H2, TNF-α, sTREM-1 and IL-1 levels were lower than those in the CG (p < 0.05). After treatment, NO levels in SG were higher, but TXB2, vWF and ET levels were lower than in CG (p < 0.05). In addition, CD4+, CD4+/CD8+ indicators were higher and CD8+ lower in SG than in CG (p < 0.05). Conclusion: Ulinastatin + LMWHs improves IMF in patients suffering from severe pancreatitis, shortens the time for various indicators to normalize, and reduces incidence of complications. However, further clinical trials are required to ascertain this therapeutic strategy for the management of severe pancreatitis. Keywords: Low molecular weight heparin; Ulinastatin; Severe pancreatitis; Soluble myeloid cell expression; Intestinal mucosal function; Treatment effec

    Azorhizobium caulinodans c-di-GMP phosphodiesterase Chp1 involved in motility, EPS production, and nodulation of the host plant

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    Establishment of the rhizobia-legume symbiosis is usually accompanied by hydrogen peroxide (H2O2) production by the legume host at the site of infection, a process detrimental to rhizobia. In Azorhizobium caulinodans ORS571, deletion of chp1, a gene encoding c-di-GMP phosphodiesterase, led to increased resistance against H2O2 and to elevated nodulation efficiency on its legume host Sesbania rostrata. Three domains were identified in the Chp1: a PAS domain, a degenerate GGDEF domain, and an EAL domain. An in vitro enzymatic activity assay showed that the degenerate GGDEF domain of Chp1 did not have diguanylate cyclase activity. The phosphodiesterase activity of Chp1 was attributed to its EAL domain which could hydrolyse c-di-GMP into pGpG. The PAS domain functioned as a regulatory domain by sensing oxygen. Deletion of Chp1 resulted in increased intracellular c-di-GMP level, decreased motility, increased aggregation, and increased EPS (extracellular polysaccharide) production. H2O2-sensitivity assay showed that increased EPS production could provide ORS571 with resistance against H2O2. Thus, the elevated nodulation efficiency of the increment chp1 mutant could be correlated with a protective role of EPS in the nodulation process. These data suggest that c-di-GMP may modulate the A. caulinodans-S. rostrata nodulation process by regulating the production of EPS which could protect rhizobia against H2O2

    Government subsidy and firm's cost sharing in sustainable agriculture supply chain

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    This paper studies an agriculture supply chain consisting of a government, a leading firm and a group of farmers. The government encourages farmers to make sustainable technologies' input by providing cost share or flat payment. The firm procures products from multiple farmers and shares a portion of input costs. The optimal sustainable technologies' input, wholesale price and government subsidy are determined, and the impacts of different parameters on the decisions with the endogenous or exogenous subsidy are analysed. The results show that when competition intensifies to a certain threshold, farmers will not invest in sustainable technologies. When the subsidy is endogenous, the firm will obtain less profit if he shares more costs because the optimal subsidy decreases with the cost-sharing proportion. When the subsidy is exogenous, the farmers' optimal sustainable technologies' input under the government's cost share is higher, and the firm may obtain more profit with cost sharing if the subsidy is relatively high. The government provides a higher subsidy to motivate farmers to adopt sustainable technologies when the pollution is more environmentally damaging. The government's cost share is superior to flat payment because it alleviates the government's financial burden with the same effect on motivating sustainable technologies' input

    Identification of thioredoxin-1 as a biomarker of lung cancer and evaluation of its prognostic value based on bioinformatics analysis

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    BackgroundThioredoxin-1 (TXN), a redox balance factor, plays an essential role in oxidative stress and has been shown to act as a potential contributor to various cancers. This study evaluated the role of TXN in lung cancer by bioinformatics analyses.Materials and methodsGenes differentially expressed in lung cancer and oxidative stress related genes were obtained from The Cancer Genome Atlas, Gene Expression Omnibus and GeneCards databases. Following identification of TXN as an optimal differentially expressed gene by bioinformatics, the prognostic value of TXN in lung cancer was evaluated by univariate/multivariate Cox regression and Kaplan–Meier survival analyses, with validation by receiver operation characteristic curve analysis. The association between TXN expression and lung cancer was verified by immunohistochemical analysis of the Human Protein Atlas database, as well as by western blotting and qPCR. Cell proliferation was determined by cell counting kit-8 after changing TXN expression using lentiviral transfection.ResultsTwenty differentially expressed oxidative stress genes were identified. Differential expression analysis identified five genes (CASP3, CAT, TXN, GSR, and HSPA4) and Kaplan–Meier survival analysis identified four genes (IL-6, CYCS, TXN, and BCL2) that differed significantly in lung cancer and normal lung tissue, indicating that TXN was an optimal differentially expressed gene. Multivariate Cox regression analysis showed that T stage (T3/T4), N stage (N2/N3), curative effect (progressive diseases) and high TXN expression were associated with poor survival, although high TXN expression was poorly predictive of overall survival. TXN was highly expressed in lung cancer tissues and cells. Knockdown of TXN suppressed cell proliferation, while overexpression of TXN enhanced cell proliferation.ConclusionHigh expression of TXN plays an important role in lung cancer development and prognosis. Because it is a prospective prognostic factor, targeting TXN may have clinical benefits in the treatment of lung cancer

    Analysis of water synergy benefits of coal de-capacity in China

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    The closure/withdrawal of mines, as one of the important measures to implement the State Council’s “Opinions on supporting the coal industries to resolve excess production capacity and achieve destructive development”, and is of great significance to the optimization of the regional energy structure, reduction of carbon emissions and environmental protection. In order to assess the synergistic benefits of water resources generated in the process of coal de-capacity and reveal the spatial and temporal evolution characteristics of closure/withdrawal mines, the number and capacity of closure/withdrawal mines during 2016—2022 were investigated with coal de-capacity as the policy background. Based on the analysis of the spatial and temporal distribution characteristics of the closure/withdrawal mines, the water resources synergy benefits brought about by coal de-capacity was quantified by combining the water resources-related mine water, water consumption and wastewater discharges coefficients in the coal mining and washing stages. The results show that a total of 4027 mines were closure/withdrawal from coal-related provinces in China during 2016—2022, with a de-capacity of 875 million t. The number of mines closure/withdrawal is concentrated in the upper reaches of the Yangtze River, and the areas with high density of coal de-capacity are concentrated in the "Ji" bays of the Yellow River. Meanwhile, the total of wasted water resources reduced by coal de-capacity is about 3 billion t, higher than the volume of China’s fourth largest freshwater Honghu lake, generating socio-economic benefits of about 46.165 billion yuan. The areas with positive benefits of water synergy are mainly located in the water shortage areas such as Southwest China, North China and the Yellow River basin. This research quantifies the synergistic benefits of water resources for coal de-capacity and discusses the future direction of mine water resources utilization, with a view to providing scientific basis and data support for sustainable development and “double carbon” target for coal de-capacity

    Peran Daya Dukung Wilayah Terhadap Pengembangan USAha Peternakan Sapi Madura

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    Research conducted on the island of Madura. The aim of the research was analyzed the area-based development of beef cattle in Madura island. Primary research data was sourced from statistics in the Madura district in figures. Data was analyzed using Location Quotient (LQ) method. Data procesing conducted whith spreadsheet from Excel on Microsoft Windows 7. The results showed that the basis for the development of Madura cattle each regency were Pamekasan (sub-district Larangan, Pasean, Batumamar, Palengan, Proppo, Tlanakan, and Pegantenan), Sumenep (sub-district Gayam, Nonggunong and Batuputih), Bangkalan (subdistrict Kokop, Geger, Galis, Tanah Merah, and Blega) and Bangkalan (sub-district Ketapang, Sokobanah, Kedungdung, Sampang, Banyuates, Robatal, and Omben. Conclusion of the research was the development of Madura cattle concentrated in the base region of Madura cattle
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