Riggschang2539

OBJECTIVE Pectinase is an industrially important enzyme which is employed in an array of commercial processes; cost of production, however, impedes its application. The main objective of this study was to design a two-layered strategy for the reduction of production cost, firstly by using a yeast co-culture in an immobilized form on an agricultural waste matrix, corncob (CB), secondly by utilizing orange peels (OP) as substrate. RESULTS Two yeast strains, Saccaromyces cerevisiae MK-157 and Geotrichum candidum AA15 were cultivated as mono-, as well as, co-culture after immobilization on CB and pectinase production was monitored. Initial experiments revealed that co-culture is beneficial to get sustainable product in subsequent 2nd and 3rd production cycles. The factors affecting pectinase production in consecutive three production cycles were studied by employing Plackett-Burman design and the significant factors were optimized through Box-Behnken design. Under optimized conditions, 17.89 IU mL-1 of pectinase was obtained. Scanning electron micrographs presented damaged immobilized yeast cells on CB after the 3rd production cycle. CONCLUSION The pectinase production was improved substantially by using immobilized co-culture and hence the strategy was found effective at lab scale. Since, pectinase is applied in orange juice clarification, therefore, the study can be extended to move forward towards circular economy.Neurodegenerative diseases are caused by a loss of neurons within the peripheral or central nervous system. Inadequate repairability in the central nervous system and failure of treatments are the significant hurdles for several neurological diseases. The regenerative potential of stem cells drew the attention of researchers to cell-based therapy for treating neurodegenerative diseases. The clinical application of stem cells may help to substitute new cells and overcome the inability of the endogenous repairing system to repair the damaged brain. However, the clinical application induced pluripotent stem cells are restricted due to the risk of tumor formation by residual undifferentiated upon transplantation. In this focused review, we briefly discussed different stem cells currently being studied for therapeutic development. Moreover, we present supporting evidence for the utilization of stem cell therapy for the treatment of neurodegenerative diseases. Also, we described the key issues that should be considered to transplantation of stem cells for different neurodegenerative diseases. In our conclusion, stem cell therapy probably would be the only treatment strategy that offers a cure for neurodegenerative disease. Although, further study is required to identify ideal stem cells candidate, dosing and the ideal method of cell transplantation. We suggest that all grafted cells would be transgenically armed with a molecular kill-switch that could be activated by the event of adverse side effects.In our previous study, AtDBP1 encoding a DBP factor was identified as a putative abiotic stress candidate gene. DBP factors are important regulators that participate in both transcriptional regulation and post-translational regulation, but their roles in abiotic stress are still not well-understood. So we conducted a detailed study on the function of AtDBP1 in abiotic stress. Bozitinib chemical structure It is found that expression of AtDBP1 could be induced by drought and salt, and the induction by salt was inhibited in ABA-deficient mutant aba2-3, indicating the expression of AtDBP1 was ABA-inducible. Overexpression of AtDBP1 resulted in a rapid stomatal closure, and elevated expression of drought/salt-responsive genes, which should help Arabidopsis to enhance the drought and salt tolerance. Unexpectedly, overexpression of AtDBP1 decreased the drought and salt tolerance of Arabidopsis. Further analysis suggested that AtDBP1 is involved in cuticle wax and cuticle membrane regulation. Overexpression of AtDBP1 showed increased cuticular conductance due to a decreased cuticle wax accumulation and cuticle membrane thickness. The cuticular wax provides an essential barrier for decreasing nonstomatal water loss during drought stress, so overexpression of AtDBP1 showed decreased drought tolerance possibly ascribed to the change of cuticle membrane structure. Our previous study elucidated that AtDBP1 was also involved in flowering time regulation. Taken together, the results above indicated that AtDBP1 was involved in both plant development and stress regulation. The mechanism of AtDBP1 in this study indicates that genes involved in both plant development and stress regulation might be not suitable for production application in breeding. Collectively, our results provide some new ideas on purposefully increasing the abiotic stress without influence on plant growth and development.In recent years, sulforaphane (SFN) has been shown to have antitumor effects. To better understand the molecular basis of SFN intervention in estrogen-dependent breast cancer, integrated multi-omics data analysis was used to provide evidence and insights into molecular biology. MCF-7 breast cancer cells were treated with estradiol (E2) or/and SFN. Genome-wide DNA methylation analysis was performed by using microarray platforms. The protein profile was analyzed by TMT labeled HPLC-MS/MS. The metabolic profile was obtained by GC-MS and UPLC-MS methods. Multivariate statistics analyses, such as PCA and hierarchical clustering, were performed. The Gene Ontology (GO) and KEGG analysis were used to perform enrichment analysis of biological processes and pathways. A set of differentially methylated genes and differentially expressed proteins and metabolites were found, which indicated that SFN may reverse the adverse effects induced by E2. Integrated analysis revealed cancer genes that responded to estrogen and other pathways frequently associated with cancer. Co-pathway analysis revealed that the reversal effects of SFN were associated with purine metabolism and glutathione metabolism. The integrated omics analysis outlined a promising blueprint of the relationship of biological molecules in different dimensions, which will be beneficial for understanding the mechanism of anti-breast cancer effects and for new targets of medicines.Oxidative stress induced necroptosis is important in myocardial ischemia/reperfusion injury. Dexmedetomidine (Dex), an α2-adrenoceptor (α2-AR) agonist, has protective effect on oxidative stress induced cell apoptosis, but effects of Dex and Dex-mediated α2-AR activation on oxidant induced necroptosis was unclear. H9C2 cardiomyocytes were pre-treated with or without Dex and α2-AR antagonist yohimbine hydrochloride (YOH) before being exposed to H2O2 to induce oxidative cellular damage. Cell viability and lactate dehydrogenase (LDH) were detected by ELISA kits, protein expressions of Heme Oxygenase 1(HO-1), receptor interacting protein kinase 1 (RIPK1) and receptor interacting protein kinase 3 (RIPK3) were observed by WB, and TUNEL was used to detected cell apoptosis. H2O2 significantly decreased cell viability and increased LDH release and necroptotic and apoptotic cell deaths (all p  0.05). These findings indicated that Dex attenuates H2O2 induced cardiomyocyte necroptotic and apoptotic cell death respectively dependently and independently of α2-AR activation.BACKGROUND Managing a medication regimen is a complex self-care activity that requires a high level of integration and coordination between cognitive and physical skills. This scoping review aims to identify available instruments designed to assess an adult individual's ability to manage a medication regimen independently and to identify reliable and valid tools to be used in clinical practice and research. METHODS Five databases (PubMed/MEDLINE, CINAHL Complete, PsycINFO, Embase, and International Pharmaceutical Abstracts) were searched to identify articles reporting the development of an instrument to assess medication self-management capacity in adults. The process included a broad initial search of the databases, followed by screening of titles and abstracts, and full review of relevant articles. For each instrument identified, characteristics, including validity and reliability assessments, were summarized. RESULTS Sixteen papers were identified that reviewed or described the development and/or validation of 26 instruments designed to assess medication self-management capacity. Most instruments were designed to identify cognitive and physical barriers to successful medication management, but there was inconsistency across instruments in the specific skills assessed and the assessment method used. Most instruments were validated by testing at least one related construct, such as cognitive function, activities of daily living or instrumental activities of daily living performance, or medication adherence. CONCLUSION Development of standardized instruments to quantify medication self-management capacity is still growing. The choice of instrument for use in a specific clinical or research setting will depend on the purpose for making the assessment and the population that it will be applied to. Results of this review can assist in selecting an appropriate instrument or guiding the development of new instruments for assessment of medication self-management capacity for specific clinical or research purposes.Battery electric vehicles (BEV) have become the most effective and environmentally friendly means to replace internal combustion vehicles. However, given the fact that BEV are a relatively new product category, and the majority of car users have little experience of using BEV, consumers often have a misconception about BEV, and thus tend to avoid purchasing an electric vehicle. This paper aims to explore the role of customer experience and demonstrate how this experience affects the adoption willingness of BEV. Based on driving experience and the theory of planned behavior, the authors constructed a framework of influencing factors for electric vehicle adoption willingness with the incorporation of consumer experience as the antecedents of adoption willingness. Using sample data from Jiangsu province, China, our empirical analysis shows that the mean values of the subjective norm, perceived behavioral control, attitudes, and adoption willingness of experienced consumers are significantly higher than those of inexperienced consumers. Further, the adoption willingness is positively influenced by experience through direct and indirect paths, which confirms the significant mediating effects of subjective norm, perceived behavioral control, and attitudes (battery life, cruising range, low noise, and low emission).Artificial reservoirs play an important role in intercepting organic carbon (OC), which affects the carbon cycle of inland waters. However, limited by the methods of field observations, studies on the potential carbon sink of sediment in reservoirs are not accurate enough. In this study, we investigated OC accumulation in the Wujiangdu Reservoir (WJDR), a canyon reservoir located in a karst area of Southwest China, by coupling seismic survey data with physicochemical data of sediment cores. The results showed that irregular underwater topography resulted in spatial heterogeneity of the sediment deposition. The mean OC accumulation rate in the WJDR was 579.2 g C m-2 year-1, and the OC accumulation flux of the WJDR was 1.4 × 1010 g C year-1. δ13C values coupled with a mixing model indicated that the autochthonous OC ranged from 14.2 to 97.0% of the total OC in the sediment, with an average of 48.4%. The significantly positive relationship between autochthonous OC and TN indicated that the autochthonous OC generated in the reservoir was associated with nutrient input.