integrated approaches

综合办法
  • 文章类型: Journal Article
    ST08和ST09是具有抗增殖作用的有效姜黄素衍生物,凋亡,和杂乱属性。ST08和ST09均表现出体外和体内抗癌特性。如前所述,这些衍生物对MDA-MB-231三阴性乳腺癌细胞具有高度细胞毒性,IC50值在纳摩尔(40-80nM)范围内.在这项研究中,我们对未处理的(对照)进行了全基因组亚硫酸氢盐测序(WGBS),ST08和ST09(治疗)三阴性乳腺癌细胞系MDA-MB-231,以解开药物诱导的表观遗传变化。我们确定了基因组中启动子区域富集的差异甲基化位点(DMS)。CpG岛启动子甲基化分析确定了两种药物共有的12个基因,已知其中50%在患者样品中被甲基化,这些样品被属于同源盒家族转录因子的药物低甲基化。基因体的甲基化分析显示,在ST08和ST09处理的MDA-MB-231细胞中,分别有910和952个基因是高甲基化的。基因体高甲基化与表达的相关性显示,CACNAH1在ST08治疗中上调,CDH23在ST09中上调。Further,WGBS与RNA-seq的综合分析鉴定出独特改变的途径-ST08改变的ECM途径,和ST09细胞周期,表明药物特异性特征。
    ST08 and ST09 are potent curcumin derivatives with antiproliferative, apoptotic, and migrastatic properties. Both ST08 and ST09 exhibit in vitro and in vivo anticancer properties. As reported earlier, these derivatives were highly cytotoxic towards MDA-MB-231 triple-negative breast cancer cells with IC50 values in the nanomolar (40-80nM) range.In this study,we performed whole-genome bisulfite sequencing(WGBS) of untreated (control), ST08 and ST09 (treated) triple-negative breast cancer cell line MDA-MB-231 to unravel epigenetic changes induced by the drug. We identified differentially methylated sites (DMSs) enriched in promoter regions across the genome. Analysis of the CpG island promoter methylation identified 12 genes common to both drugs, and 50% of them are known to be methylated in patient samples that were hypomethylated by drugs belonging to the homeobox family transcription factors.Methylation analysis of the gene body revealed 910 and 952 genes to be hypermethylatedin ST08 and ST09 treated MDA-MB-231 cells respectively. Correlation of the gene body hypermethylation with expression revealed CACNAH1 to be upregulated in ST08 treatment and CDH23 upregulation in ST09.Further, integrated analysis of the WGBS with RNA-seq identified uniquely altered pathways - ST08 altered ECM pathway, and ST09 cell cycle, indicating drug-specific signatures.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    参数化思想在建筑业和环境科学中都得到了广泛的接受。然而,在环境城市形态的背景下,参数思维被忽视了。本文以参数城市化为重点,严格评估了环境优化。该分析解决了两个研究问题:“参数思维及其相关方法能否促进环境城市形态?”和“如果是,参数城市主义能支持复杂城市地区的环境优化吗?“。定性和定量分析,参数化建模,和环境模拟。结果表明,通过生成参数模型,参数化技术可以有效地模拟城市环境形态。这些模型为优化城市发展环境的示意图决策提供了合理的基础。研究结果包括对应用于城市环境的参数思维的批评,以及对参数技术用于支持优质环境城市形态的潜在用途的见解。
    Parametric thinking has found wide acceptance in both the building industry and environmental sciences. In the context of environmental urban morphology however, parametric thinking has been neglected. This paper critically assesses environmental optimization with a focus on parametric urbanism. The analysis addresses two research questions: \"Can parametric thinking and its associated approaches facilitate an environmental urban morphology?\" and \"If yes, can parametric urbanism support environment optimization in complex urban areas?\" Methodologies include a case study in Beijing, qualitative and quantitative analysis, parametric modeling, and environmental simulation. Results indicate that parametric techniques can effectively simulate environmental urban morphology by generating parametric models. These models provide a rational foundation for schematic decision-making about optimizing environments in urban development. Findings include a critique of parametric thinking as applied to city environments and insights about the potential uses of parametric techniques to support quality environmental urban morphology.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

       PDF(Pubmed)

  • 文章类型: Journal Article
    The present fossil fuel-based energy sector has led to significant industrial growth. On the other hand, the dependence on fossil fuels leads to adverse impact on the environment through releases of greenhouse gases. In this scenario, one possible substitute is biohydrogen, an eco-friendly energy carrier as high-energy produces. The substrates rich in organic compounds like organic waste/wastewater are very useful for improved hydrogen generation through the dark fermentation. Thus, this review article, initially, the status of biohydrogen production from organic waste and various strategies to enhance the process efficiency are concisely discussed. Then, the practical confines of biohydrogen processes are thoroughly discussed. Also, alternate routes such as multiple process integration approach by adopting biorefinery concept to increase overall process efficacy are considered to address industrial-level applications. To conclude, future perspectives besides with possible ways of transforming dark fermentation effluent to biofuels and biochemicals, which leads to circular bioeconomy, are discussed.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

  • 文章类型: Journal Article
    Integrated water planning and management face multiple challenges, among which are the competing interests of several water-using sectors and changing climatic trends. This paper presents integrated and non-integrated climate-environment-water approaches for reservoir operation, illustrated with Karkhe reservoir, Iran. Reservoir operation objectives are meeting municipal, environmental, and agricultural water demands. Results show the integrated approach, which relies on multi-objective optimization of municipal, environmental, and agricultural water supply, improves the municipal, environmental, and agricultural objectives by 70, 32, and 65% compared with the objectives\' values achieved with the non-integrated approach, which implements a standard operating policy.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

  • 文章类型: Comparative Study
    Ethical issues in animal toxicity testing have led to the search for alternative methods to determine the skin sensitization potential of cosmetic products. The emergence of ethical testing issues has led to the development of many alternative methods that can reliably estimate skin sensitization potentials. However, a single alternative method may not be able to achieve high predictivity due to the complexity of the skin sensitization mechanism. Therefore, several prediction assays, including both in chemico and in vitro test methods, were investigated and integrated based on the skin sensitization adverse outcome pathway. In this study, we evaluated three different integrated approaches to predict a human skin sensitization hazard using data from in vitro assays (KeratinoSens™ and human cell line activation test [h-CLAT]), and a newly developed in chemico assay (spectrophotometric direct peptide reactivity assay [Spectro-DPRA]). When the results of the in chemico and in vitro assays were combined, the predictivity of human data increased compared with that of a single assay. The highest predictivity was obtained for the approach in which sensitization potential was determined by Spectro-DPRA followed by final determination using the result of KeratinoSens™ and h-CLAT assays (96.3% sensitivity, 87.1% specificity, 86.7% positive predictive value, 96.4% negative predictive value and 91.4% accuracy compared with human data). While further optimization is needed, we believe this integrated approach may provide useful predictive data when determining the human skin sensitization potential of chemicals.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

  • 文章类型: Journal Article
    真菌被忽视热带病(NTD)的诊断主要基于对可疑病例的初步视觉识别,然后进行确认性实验室测试。通常仅限于专门的设施。尽管分子和血清诊断工具已经取得了进步,在地方性环境中,理想和实用之间仍然存在很大的差距。为了进一步探讨这个问题,我们对主题专家进行了一项调查,研究了最佳诊断方法,该方法足以在设备齐全的医疗机构与基本医疗机构中启动治疗,以及最佳抽样方法,三种真菌NTD:霉菌瘤,成色真菌病,和孢子丝菌病。对23个中心的调查发现,与拭子或印模涂片相比,半侵入性取样方法如活检诊断的关键作用达成共识,关于组织病理学的重要性,直接显微镜,并在设备齐全的实验室中进行菌丝瘤和染色体成真菌病的培养。在基本的医疗保健环境中,据报道,直接镜检结合临床体征是提示转诊治疗的最有用的诊断指标.调查发现,除真菌培养外,在最广泛的实验室测试中,孢子丝菌病的诊断是最有问题的,敏感性差。强调需要提高真菌学诊断能力和开发创新的诊断解决方案。真菌显微镜和培养现在被认为是世卫组织必不可少的诊断测试,对其应用进行更好的培训将有助于改善这种情况。对于霉菌瘤和孢子丝菌病,特别是,识别特定标记抗原或基因组序列的进展可能为新的基于实验室或即时测试铺平道路,尽管这是一项艰巨的任务,因为有大量不同的生物可以引起真菌NTDs。
    The diagnosis of fungal Neglected Tropical Diseases (NTD) is primarily based on initial visual recognition of a suspected case followed by confirmatory laboratory testing, which is often limited to specialized facilities. Although molecular and serodiagnostic tools have advanced, a substantial gap remains between the desirable and the practical in endemic settings. To explore this issue further, we conducted a survey of subject matter experts on the optimal diagnostic methods sufficient to initiate treatment in well-equipped versus basic healthcare settings, as well as optimal sampling methods, for three fungal NTDs: mycetoma, chromoblastomycosis, and sporotrichosis. A survey of 23 centres found consensus on the key role of semi-invasive sampling methods such as biopsy diagnosis as compared with swabs or impression smears, and on the importance of histopathology, direct microscopy, and culture for mycetoma and chromoblastomycosis confirmation in well-equipped laboratories. In basic healthcare settings, direct microscopy combined with clinical signs were reported to be the most useful diagnostic indicators to prompt referral for treatment. The survey identified that the diagnosis of sporotrichosis is the most problematic with poor sensitivity across the most widely available laboratory tests except fungal culture, highlighting the need to improve mycological diagnostic capacity and to develop innovative diagnostic solutions. Fungal microscopy and culture are now recognized as WHO essential diagnostic tests and better training in their application will help improve the situation. For mycetoma and sporotrichosis, in particular, advances in identifying specific marker antigens or genomic sequences may pave the way for new laboratory-based or point-of-care tests, although this is a formidable task given the large number of different organisms that can cause fungal NTDs.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

       PDF(Pubmed)

  • 文章类型: Journal Article
    The benefit and burden of contemporary techniques for the molecular characterization of samples is the vast amount of data generated. In the era of \"big data\", it has become imperative that we develop multi-disciplinary teams combining scientists, clinicians, and data analysts. In this review, we discuss a number of approaches developed by our University of Texas MD Anderson Lung Cancer Multidisciplinary Program to process and utilize such large datasets with the goal of identifying rational therapeutic options for biomarker-driven patient subsets. Large integrated datasets such as the The Cancer Genome Atlas (TCGA) for patient samples and the Cancer Cell Line Encyclopedia (CCLE) for tumor derived cell lines include genomic, transcriptomic, methylation, miRNA, and proteomic profiling alongside clinical data. To best use these datasets to address urgent questions such as whether we can define molecular subtypes of disease with specific therapeutic vulnerabilities, to quantify states such as epithelial-to-mesenchymal transition that are associated with resistance to treatment, or to identify potential therapeutic agents in models of cancer that are resistant to standard treatments required the development of tools for systematic, unbiased high-throughput analysis. Together, such tools, used in a multi-disciplinary environment, can be leveraged to identify novel treatments for molecularly defined subsets of cancer patients, which can be easily and rapidly translated from benchtop to bedside.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

       PDF(Pubmed)

  • 文章类型: Journal Article
    Long-term monitoring, space-for-time substitutions along gradients, and in situ temperature manipulations are common approaches to understand effects of climate change on alpine and arctic plant communities. Although general patterns emerge from studies using different approaches, there are also some inconsistencies. To provide better estimates of plant community responses to future warming across a range of environments, there have been repeated calls for integrating different approaches within single studies. Thus, to examine how different methods in climate change effect studies may ask different questions, we combined three climate warming approaches in a single study in the Hengduan Mountains of southwestern China. We monitored plant communities along an elevation gradient using the space-for-time approach, and conducted warming experiments using open top chambers (OTCs) and plant community transplantation toward warmer climates along the same gradient. Plant species richness and abundances were monitored over 5 years addressing two questions: (1) how do plant communities respond to the different climate warming approaches? (2) how can the combined approaches improve predictions of plant community responses to climate change? The general trend across all three approaches was decreased species richness with climate warming at low elevations. This suggests increased competition from immigrating lowland species, and/or from the species already growing inside the plots, as indicated by increased biomass, vegetation height or proportion of graminoids. At the coldest sites, species richness decreased in OTCs and along the gradient, but increased in the transplants, suggesting that plant communities in colder climates are more open to invasion from lowland species, with slow species loss. This was only detected in the transplants, showing that different approaches, may yield different results. Whereas OTCs may constrain immigration of new species, transplanted communities are rapidly exposed to new neighbors that can easily colonize the small plots. Thus, different approaches ask slightly different questions, in particular regarding indirect climate change effects, such as biotic interactions. To better understand both direct and indirect effects of climate change on plant communities, we need to combine approaches in future studies, and if novel interactions are of particular interest, transplants may be a better approach than OTCs.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

       PDF(Pubmed)

  • 文章类型: Journal Article
    The aim of the paper is to test the influence of social status and psychological well-being (independent variables) on hypertensive condition (dependent variable), when adjusting for traditional risk factors of cardiovascular disease (control variables). The analysis is based on data collected from SEPHAR III, a nationally representative epidemiologic study of the Romanian adult population.
    Understanding the social roots of health issues is of considerable importance in developing effective strategies and policies. In this context, most studies explain the influence of social and psychological indicators on hypertension by considering the mediating effects of class-based lifestyle practices, i.e., the full range of economic, social, or symbolic resources available to particular social classes. However, the effect of traditional risk factors of cardiovascular disease in shaping the relationship between psychosocial status and hypertension has remained mostly unexplored. The influence of socioeconomic status and psychological well-being on hypertensive condition is assimilated by age as a variable with both biological and social foundations. Age appears not only as a risk factor for high blood pressure but also as an emergent component of psychosocial status. Furthermore, people without higher education are more likely to be known hypertensives with uncontrolled blood pressure values. Social and economic vulnerabilities (e.g., age, education) are interrelated with several health conditions, which support the necessity to develop and implement integrated public policies based on interventions coordinated across several domains. Moreover, social and psychological determinants that predispose to certain health risks should be considered in medical practice.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

  • 文章类型: Journal Article
    暂无摘要。
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

公众号