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1.
Nucleic Acids Res ; 52(D1): D107-D114, 2024 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-37992296

RESUMO

Expression Atlas (www.ebi.ac.uk/gxa) and its newest counterpart the Single Cell Expression Atlas (www.ebi.ac.uk/gxa/sc) are EMBL-EBI's knowledgebases for gene and protein expression and localisation in bulk and at single cell level. These resources aim to allow users to investigate their expression in normal tissue (baseline) or in response to perturbations such as disease or changes to genotype (differential) across multiple species. Users are invited to search for genes or metadata terms across species or biological conditions in a standardised consistent interface. Alongside these data, new features in Single Cell Expression Atlas allow users to query metadata through our new cell type wheel search. At the experiment level data can be explored through two types of dimensionality reduction plots, t-distributed Stochastic Neighbor Embedding (tSNE) and Uniform Manifold Approximation and Projection (UMAP), overlaid with either clustering or metadata information to assist users' understanding. Data are also visualised as marker gene heatmaps identifying genes that help confer cluster identity. For some data, additional visualisations are available as interactive cell level anatomograms and cell type gene expression heatmaps.


Assuntos
Bases de Dados Genéticas , Perfilação da Expressão Gênica , Proteômica , Genótipo , Metadados , Análise de Célula Única , Internet , Humanos , Animais
2.
Arch Microbiol ; 206(5): 229, 2024 Apr 22.
Artigo em Inglês | MEDLINE | ID: mdl-38647675

RESUMO

In modern times, medicine is predominantly based on evidence-based practices, whereas in ancient times, indigenous people relied on plant-based medicines with factual evidence documented in ancient books or folklore that demonstrated their effectiveness against specific infections. Plants and microbes account for 70% of drugs approved by the USFDA (U.S. Food and Drug Administration). Stilbenes, polyphenolic compounds synthesized by plants under stress conditions, have garnered significant attention for their therapeutic potential, bridging ancient wisdom with modern healthcare. Resveratrol, the most studied stilbene, initially discovered in grapes, red wine, peanuts, and blueberries, exhibits diverse pharmacological properties, including cardiovascular protection, antioxidant effects, anticancer activity, and neuroprotection. Traditional remedies, documented in ancient texts like the Ayurvedic Charak Samhita, foreshadowed the medicinal properties of stilbenes long before their modern scientific validation. Today, stilbenes are integral to the booming wellness and health supplement market, with resveratrol alone projected to reach a market value of 90 million US$ by 2025. However, challenges in stilbene production persist due to limited natural sources and costly extraction methods. Bioprospecting efforts reveal promising candidates for stilbene production, particularly endophytic fungi, which demonstrate high-yield capabilities and genetic modifiability. However, the identification of optimal strains and fermentation processes remains a critical consideration. The current review emphasizes the knowledge of the medicinal properties of Stilbenes (i.e., cardiovascular, antioxidant, anticancer, anti-inflammatory, etc.) isolated from plant and microbial sources, while also discussing strategies for their commercial production and future research directions. This also includes examples of novel stilbenes compounds reported from plant and endophytic fungi.


Assuntos
Resveratrol , Estilbenos , Estilbenos/química , Estilbenos/farmacologia , Humanos , Resveratrol/farmacologia , Resveratrol/química , Fungos/efeitos dos fármacos , Endófitos/química , Endófitos/metabolismo , Endófitos/isolamento & purificação , Antioxidantes/química , Antioxidantes/farmacologia , Medicina Tradicional , Plantas/química
3.
Nucleic Acids Res ; 50(D1): D129-D140, 2022 01 07.
Artigo em Inglês | MEDLINE | ID: mdl-34850121

RESUMO

The EMBL-EBI Expression Atlas is an added value knowledge base that enables researchers to answer the question of where (tissue, organism part, developmental stage, cell type) and under which conditions (disease, treatment, gender, etc) a gene or protein of interest is expressed. Expression Atlas brings together data from >4500 expression studies from >65 different species, across different conditions and tissues. It makes these data freely available in an easy to visualise form, after expert curation to accurately represent the intended experimental design, re-analysed via standardised pipelines that rely on open-source community developed tools. Each study's metadata are annotated using ontologies. The data are re-analyzed with the aim of reproducing the original conclusions of the underlying experiments. Expression Atlas is currently divided into Bulk Expression Atlas and Single Cell Expression Atlas. Expression Atlas contains data from differential studies (microarray and bulk RNA-Seq) and baseline studies (bulk RNA-Seq and proteomics), whereas Single Cell Expression Atlas is currently dedicated to Single Cell RNA-Sequencing (scRNA-Seq) studies. The resource has been in continuous development since 2009 and it is available at https://www.ebi.ac.uk/gxa.


Assuntos
Bases de Dados Genéticas , Proteínas/genética , Proteômica , Software , Biologia Computacional , Perfilação da Expressão Gênica , Humanos , Proteínas/química , RNA-Seq , Análise de Sequência de RNA , Análise de Célula Única
4.
J Proteome Res ; 22(3): 729-742, 2023 03 03.
Artigo em Inglês | MEDLINE | ID: mdl-36577097

RESUMO

The availability of proteomics datasets in the public domain, and in the PRIDE database, in particular, has increased dramatically in recent years. This unprecedented large-scale availability of data provides an opportunity for combined analyses of datasets to get organism-wide protein abundance data in a consistent manner. We have reanalyzed 24 public proteomics datasets from healthy human individuals to assess baseline protein abundance in 31 organs. We defined tissue as a distinct functional or structural region within an organ. Overall, the aggregated dataset contains 67 healthy tissues, corresponding to 3,119 mass spectrometry runs covering 498 samples from 489 individuals. We compared protein abundances between different organs and studied the distribution of proteins across these organs. We also compared the results with data generated in analogous studies. Additionally, we performed gene ontology and pathway-enrichment analyses to identify organ-specific enriched biological processes and pathways. As a key point, we have integrated the protein abundance results into the resource Expression Atlas, where they can be accessed and visualized either individually or together with gene expression data coming from transcriptomics datasets. We believe this is a good mechanism to make proteomics data more accessible for life scientists.


Assuntos
Proteoma , Proteômica , Humanos , Proteoma/análise , Proteômica/métodos , Perfilação da Expressão Gênica , Bases de Dados Factuais , Espectrometria de Massas/métodos , Bases de Dados de Proteínas
5.
PLoS Comput Biol ; 18(6): e1010174, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35714157

RESUMO

The increasingly large amount of proteomics data in the public domain enables, among other applications, the combined analyses of datasets to create comparative protein expression maps covering different organisms and different biological conditions. Here we have reanalysed public proteomics datasets from mouse and rat tissues (14 and 9 datasets, respectively), to assess baseline protein abundance. Overall, the aggregated dataset contained 23 individual datasets, including a total of 211 samples coming from 34 different tissues across 14 organs, comprising 9 mouse and 3 rat strains, respectively. In all cases, we studied the distribution of canonical proteins between the different organs. The number of canonical proteins per dataset ranged from 273 (tendon) and 9,715 (liver) in mouse, and from 101 (tendon) and 6,130 (kidney) in rat. Then, we studied how protein abundances compared across different datasets and organs for both species. As a key point we carried out a comparative analysis of protein expression between mouse, rat and human tissues. We observed a high level of correlation of protein expression among orthologs between all three species in brain, kidney, heart and liver samples, whereas the correlation of protein expression was generally slightly lower between organs within the same species. Protein expression results have been integrated into the resource Expression Atlas for widespread dissemination.


Assuntos
Proteínas , Proteômica , Animais , Encéfalo/metabolismo , Camundongos , Proteínas/metabolismo , Ratos
6.
Nucleic Acids Res ; 49(D1): D1502-D1506, 2021 01 08.
Artigo em Inglês | MEDLINE | ID: mdl-33211879

RESUMO

ArrayExpress (https://www.ebi.ac.uk/arrayexpress) is an archive of functional genomics data at EMBL-EBI, established in 2002, initially as an archive for publication-related microarray data and was later extended to accept sequencing-based data. Over the last decade an increasing share of biological experiments involve multiple technologies assaying different biological modalities, such as epigenetics, and RNA and protein expression, and thus the BioStudies database (https://www.ebi.ac.uk/biostudies) was established to deal with such multimodal data. Its central concept is a study, which typically is associated with a publication. BioStudies stores metadata describing the study, provides links to the relevant databases, such as European Nucleotide Archive (ENA), as well as hosts the types of data for which specialized databases do not exist. With BioStudies now fully functional, we are able to further harmonize the archival data infrastructure at EMBL-EBI, and ArrayExpress is being migrated to BioStudies. In future, all functional genomics data will be archived at BioStudies. The process will be seamless for the users, who will continue to submit data using the online tool Annotare and will be able to query and download data largely in the same manner as before. Nevertheless, some technical aspects, particularly programmatic access, will change. This update guides the users through these changes.


Assuntos
Bases de Dados Genéticas , Epigênese Genética , Genômica/métodos , Sequenciamento de Nucleotídeos em Larga Escala/estatística & dados numéricos , Análise de Sequência com Séries de Oligonucleotídeos/estatística & dados numéricos , Animais , Linhagem Celular , Metilação de DNA , Perfilação da Expressão Gênica , Humanos , Internet , Metadados , Especificidade de Órgãos , Plantas/genética , Análise de Célula Única , Software
7.
Nucleic Acids Res ; 49(D1): D1452-D1463, 2021 01 08.
Artigo em Inglês | MEDLINE | ID: mdl-33170273

RESUMO

Gramene (http://www.gramene.org), a knowledgebase founded on comparative functional analyses of genomic and pathway data for model plants and major crops, supports agricultural researchers worldwide. The resource is committed to open access and reproducible science based on the FAIR data principles. Since the last NAR update, we made nine releases; doubled the genome portal's content; expanded curated genes, pathways and expression sets; and implemented the Domain Informational Vocabulary Extraction (DIVE) algorithm for extracting gene function information from publications. The current release, #63 (October 2020), hosts 93 reference genomes-over 3.9 million genes in 122 947 families with orthologous and paralogous classifications. Plant Reactome portrays pathway networks using a combination of manual biocuration in rice (320 reference pathways) and orthology-based projections to 106 species. The Reactome platform facilitates comparison between reference and projected pathways, gene expression analyses and overlays of gene-gene interactions. Gramene integrates ontology-based protein structure-function annotation; information on genetic, epigenetic, expression, and phenotypic diversity; and gene functional annotations extracted from plant-focused journals using DIVE. We train plant researchers in biocuration of genes and pathways; host curated maize gene structures as tracks in the maize genome browser; and integrate curated rice genes and pathways in the Plant Reactome.


Assuntos
Bases de Dados Genéticas , Regulação da Expressão Gênica de Plantas , Genoma de Planta , Genômica/métodos , Proteínas de Plantas/genética , Plantas/genética , Produtos Agrícolas , Elementos de DNA Transponíveis , Duplicação Gênica , Ontologia Genética , Redes Reguladoras de Genes , Internet , Bases de Conhecimento , Redes e Vias Metabólicas , Anotação de Sequência Molecular , Oryza/genética , Oryza/metabolismo , Proteínas de Plantas/metabolismo , Plantas/classificação , Plantas/metabolismo , Poliploidia , Mapeamento de Interação de Proteínas , Software , Zea mays/genética , Zea mays/metabolismo
8.
Nucleic Acids Res ; 48(D1): D77-D83, 2020 01 08.
Artigo em Inglês | MEDLINE | ID: mdl-31665515

RESUMO

Expression Atlas is EMBL-EBI's resource for gene and protein expression. It sources and compiles data on the abundance and localisation of RNA and proteins in various biological systems and contexts and provides open access to this data for the research community. With the increased availability of single cell RNA-Seq datasets in the public archives, we have now extended Expression Atlas with a new added-value service to display gene expression in single cells. Single Cell Expression Atlas was launched in 2018 and currently includes 123 single cell RNA-Seq studies from 12 species. The website can be searched by genes within or across species to reveal experiments, tissues and cell types where this gene is expressed or under which conditions it is a marker gene. Within each study, cells can be visualized using a pre-calculated t-SNE plot and can be coloured by different features or by cell clusters based on gene expression. Within each experiment, there are links to downloadable files, such as RNA quantification matrices, clustering results, reports on protocols and associated metadata, such as assigned cell types.


Assuntos
Biologia Computacional/métodos , Bases de Dados de Ácidos Nucleicos , Perfilação da Expressão Gênica , Software , Perfilação da Expressão Gênica/métodos , Especificidade de Órgãos , Análise de Célula Única/métodos , Interface Usuário-Computador
9.
Nucleic Acids Res ; 48(D1): D689-D695, 2020 01 08.
Artigo em Inglês | MEDLINE | ID: mdl-31598706

RESUMO

Ensembl Genomes (http://www.ensemblgenomes.org) is an integrating resource for genome-scale data from non-vertebrate species, complementing the resources for vertebrate genomics developed in the context of the Ensembl project (http://www.ensembl.org). Together, the two resources provide a consistent set of interfaces to genomic data across the tree of life, including reference genome sequence, gene models, transcriptional data, genetic variation and comparative analysis. Data may be accessed via our website, online tools platform and programmatic interfaces, with updates made four times per year (in synchrony with Ensembl). Here, we provide an overview of Ensembl Genomes, with a focus on recent developments. These include the continued growth, more robust and reproducible sets of orthologues and paralogues, and enriched views of gene expression and gene function in plants. Finally, we report on our continued deeper integration with the Ensembl project, which forms a key part of our future strategy for dealing with the increasing quantity of available genome-scale data across the tree of life.


Assuntos
Biologia Computacional/métodos , Bases de Dados Genéticas , Variação Genética , Genoma Bacteriano , Genoma Fúngico , Genoma de Planta , Algoritmos , Animais , Caenorhabditis elegans/genética , Genômica , Internet , Anotação de Sequência Molecular , Fenótipo , Plantas/genética , Valores de Referência , Software , Interface Usuário-Computador
10.
Nucleic Acids Res ; 47(D1): D711-D715, 2019 01 08.
Artigo em Inglês | MEDLINE | ID: mdl-30357387

RESUMO

ArrayExpress (https://www.ebi.ac.uk/arrayexpress) is an archive of functional genomics data from a variety of technologies assaying functional modalities of a genome, such as gene expression or promoter occupancy. The number of experiments based on sequencing technologies, in particular RNA-seq experiments, has been increasing over the last few years and submissions of sequencing data have overtaken microarray experiments in the last 12 months. Additionally, there is a significant increase in experiments investigating single cells, rather than bulk samples, known as single-cell RNA-seq. To accommodate these trends, we have substantially changed our submission tool Annotare which, along with raw and processed data, collects all metadata necessary to interpret these experiments. Selected datasets are re-processed and loaded into our sister resource, the value-added Expression Atlas (and its component Single Cell Expression Atlas), which not only enables users to interpret the data easily but also serves as a test for data quality. With an increasing number of studies that combine different assay modalities (multi-omics experiments), a new more general archival resource the BioStudies Database has been developed, which will eventually supersede ArrayExpress. Data submissions will continue unchanged; all existing ArrayExpress data will be incorporated into BioStudies and the existing accession numbers and application programming interfaces will be maintained.


Assuntos
Análise de Sequência com Séries de Oligonucleotídeos/métodos , Análise de Célula Única/métodos , Software , Bases de Dados Genéticas , RNA-Seq/métodos
11.
J Christ Nurs ; 38(1): 38-46, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33284216

RESUMO

The high prevalence of hypertension among African Americans makes faith-based education programs culturally appropriate. Faith-enhanced health education is a way to reach these often healthcare-disenfranchised populations. With Every Heartbeat is Life (WEHL), a community-based heart health program, was enhanced with Scripture and prayer for this project. The program took place in an African American nondenominational church. The Scripture-enhanced WEHL program emphasized biblical teachings of self-care with standard lessons on nutrition, exercise, smoking cessation, and disease management interventions that increased knowledge of hypertension and associated cardiovascular risks.


Assuntos
Negro ou Afro-Americano/educação , Doenças Cardiovasculares/prevenção & controle , Cristianismo , Promoção da Saúde/normas , Enfermagem Paroquial/normas , Comportamento de Redução do Risco , Autocuidado/normas , Adulto , Idoso , Idoso de 80 Anos ou mais , Currículo , Educação Continuada em Enfermagem , Feminino , Fatores de Risco de Doenças Cardíacas , Humanos , Masculino , Pessoa de Meia-Idade , Guias de Prática Clínica como Assunto , Estados Unidos
12.
Nucleic Acids Res ; 46(D1): D246-D251, 2018 01 04.
Artigo em Inglês | MEDLINE | ID: mdl-29165655

RESUMO

Expression Atlas (http://www.ebi.ac.uk/gxa) is an added value database that provides information about gene and protein expression in different species and contexts, such as tissue, developmental stage, disease or cell type. The available public and controlled access data sets from different sources are curated and re-analysed using standardized, open source pipelines and made available for queries, download and visualization. As of August 2017, Expression Atlas holds data from 3,126 studies across 33 different species, including 731 from plants. Data from large-scale RNA sequencing studies including Blueprint, PCAWG, ENCODE, GTEx and HipSci can be visualized next to each other. In Expression Atlas, users can query genes or gene-sets of interest and explore their expression across or within species, tissues, developmental stages in a constitutive or differential context, representing the effects of diseases, conditions or experimental interventions. All processed data matrices are available for direct download in tab-delimited format or as R-data. In addition to the web interface, data sets can now be searched and downloaded through the Expression Atlas R package. Novel features and visualizations include the on-the-fly analysis of gene set overlaps and the option to view gene co-expression in experiments investigating constitutive gene expression across tissues or other conditions.


Assuntos
Bases de Dados Genéticas , Animais , Perfilação da Expressão Gênica , Humanos , Mamíferos/genética , Mamíferos/metabolismo , Análise de Sequência com Séries de Oligonucleotídeos , Plantas/genética , Plantas/metabolismo , Proteômica , Análise de Sequência de RNA , Especificidade da Espécie , Interface Usuário-Computador
15.
Urol Nurs ; 35(4): 187-90, 203, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26402993

RESUMO

When only physicians are trained to insert Coudé catheters, there is an increased burden to both the patient and the providers. Training nurses for placement of Coudé catheters can improve care and allow for better use of health care resources.


Assuntos
Educação Continuada em Enfermagem/organização & administração , Recursos Humanos de Enfermagem Hospitalar/educação , Melhoria de Qualidade/organização & administração , Obstrução Ureteral/enfermagem , Cateterismo Urinário/enfermagem , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Avaliação de Programas e Projetos de Saúde , Cateteres Urinários
16.
Worldviews Evid Based Nurs ; 12(5): 297-305, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26422189

RESUMO

BACKGROUND: Addressing the disparities in pregnancy and sexually transmitted infection (STI) rates for Latino youth in the United States requires an evidence-based approach. Although randomized controlled trials for sexual risk reduction interventions have shown promise in improving short-term outcomes, program sustainability has not been extensively examined in school settings where teens spend time. Latina teen pregnancy rates are nearly twice the national average. Adolescents comprise only 17% of the U.S. population, yet they account for 50% of STIs. ¡Cuídate! is a high-impact sexual health group program endorsed by the Centers for Disease Control and Prevention that has not been replicated in a real-world setting. AIMS: The program logic model (PLM) was used as the systematic approach to plan, implement, and evaluate a sustainable model of sexual health group programing (¡Cuídate!) in a U.S. high school with a large Latino student population. METHODS: The PLM provided the framework for the evaluation of outputs, outcome, and impact. A multivariate repeated measures analysis of variance was used as the means to evaluate the participant outcomes immediately postprogram and at 8-12 weeks. RESULTS: ¡Cuídate! was executed within an existing school structure and time constraints, below cost projections, and with high participant retention (95.8%). Three cohorts (N = 24) of female teens demonstrated significant increases in STI or HIV knowledge, self-efficacy, and intention to use condoms (p < .01). Condom use increased postprogram. No participants initiated sexual behavior, nor were there any reported pregnancies or STIs. CONCLUSIONS: An evidence-based intervention previously tested in randomized controlled trials can be sustained in a school-based health center with similar results of efficacy. LINKING EVIDENCE TO ACTION: Our success served as a platform for a sustainable program. We continue to extend the impact of the program by delivering ¡Cuídate! in the school setting using a community health worker.


Assuntos
Conhecimentos, Atitudes e Prática em Saúde/etnologia , Promoção da Saúde/métodos , Hispânico ou Latino/educação , Avaliação de Programas e Projetos de Saúde , Saúde Reprodutiva/educação , Serviços de Saúde Escolar , Instituições Acadêmicas , Adolescente , Feminino , Humanos , Gravidez , Gravidez na Adolescência/prevenção & controle , Infecções Sexualmente Transmissíveis/prevenção & controle , Estados Unidos
17.
J Christ Nurs ; 32(1): 34-40, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25585467

RESUMO

The role of the Faith Community Nurse (FCN) is a multifaceted wholistic practice focused on individuals, families, and the faith and broader communities. The FCN is skilled in professional nursing and spiritual care, supporting health through attention to spiritual, physical, mental, and social health. FCNs can help meet the growing need for healthcare, especially for the uninsured, poor, and homeless. The contribution of FCNs on, primary prevention, health maintenance, and management of chronic disease deserves attention to help broaden understanding of the scope of FCN practice.


Assuntos
Cristianismo , Enfermagem em Saúde Comunitária/organização & administração , Diabetes Mellitus Tipo 2/enfermagem , Acessibilidade aos Serviços de Saúde/organização & administração , Enfermagem Holística/organização & administração , Infarto do Miocárdio/enfermagem , Enfermagem Paroquial/organização & administração , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Feminino , Promoção da Saúde , Humanos , Lactente , Recém-Nascido , Masculino , Pessoas sem Cobertura de Seguro de Saúde , Pessoa de Meia-Idade , Objetivos Organizacionais , Áreas de Pobreza , Estados Unidos , Adulto Jovem
18.
Indian J Microbiol ; 54(2): 139-42, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25320413

RESUMO

The objective of this work was to isolate a microorganism producing alkaline protease that can be used as an ecofriendly alternative to chemicals in dehairing process of leather manufacture. Alkaline protease producing bacterium Vibrio metschnikovii NG155 was isolated from soil samples of leather industry. The protease was highly effective in dehairing of goat skin, completely eliminating the use of lime and sulfide. Histological studies of the skin after dehairing showed that the enzyme did not damage the collagen layer and brought good fiber opening. Absence of collagenase activity was confirmed by reacting pure collagen with the enzyme and analyzing it on SDS PAGE, which showed no degradation of collagen. The enzyme was stable in a wide range of pH (7-11) and temperature (10-50 °C), which makes it suitable for industrial application.

19.
Cancers (Basel) ; 16(9)2024 Apr 23.
Artigo em Inglês | MEDLINE | ID: mdl-38730579

RESUMO

TIICs are critical components of the TME and are used to estimate prognostic and treatment responses in many malignancies. TIICs in the tumor microenvironment are assessed and quantified by categorizing immune cells into three subtypes: CD66b+ tumor-associated neutrophils (TANs), FoxP3+ regulatory T cells (Tregs), and CD163+ tumor-associated macrophages (TAMs). In addition, many cancers have tumor-infiltrating M1 and M2 macrophages, neutrophils (Neu), CD4+ T cells (T-helper), CD8+ T cells (T-cytotoxic), eosinophils, and mast cells. A variety of clinical treatments have linked tumor immune cell infiltration (ICI) to immunotherapy receptivity and prognosis. To improve the therapeutic effectiveness of immune-modulating drugs in a wider cancer patient population, immune cells and their interactions in the TME must be better understood. This study examines the clinicopathological effects of TIICs in overcoming tumor-mediated immunosuppression to boost antitumor immune responses and improve cancer prognosis. We successfully analyzed the predictive and prognostic usefulness of TIICs alongside TMB and ICI scores to identify cancer's varied immune landscapes. Traditionally, immune cell infiltration was quantified using flow cytometry, immunohistochemistry, gene set enrichment analysis (GSEA), CIBERSORT, ESTIMATE, and other platforms that use integrated immune gene sets from previously published studies. We have also thoroughly examined traditional limitations and newly created unsupervised clustering and deconvolution techniques (SpatialVizScore and ProTICS). These methods predict patient outcomes and treatment responses better. These models may also identify individuals who may benefit more from adjuvant or neoadjuvant treatment. Overall, we think that the significant contribution of TIICs in cancer will greatly benefit postoperative follow-up, therapy, interventions, and informed choices on customized cancer medicines.

20.
RSC Adv ; 14(22): 15374-15390, 2024 May 10.
Artigo em Inglês | MEDLINE | ID: mdl-38741961

RESUMO

In this study, two novel chalcone-derived 1,2,3-triazole-appended positional isomers (probe 6 and probe 9) were synthesized via the 'CuAAC' (Cu(i) - catalysed alkyne azide cycloaddition) methodology for the purpose of metal ion detection. The synthesized probes underwent characterization utilizing standard spectroscopic methodologies including FTIR, NMR (1H and 13C), and mass spectrometry. Subsequently, the sensing capabilities of these probes were explored using UV-Vis and fluorescence spectroscopy, wherein their selective recognition potential was established for Pb(ii) and Cu(ii), both of which can pose serious health hazards when prevalent in the environment above permissible limits. Both the probes exhibited fairly low limits of detection (LoD), determined as 5.69 µM and 6.55 µM in the case of probe 6 for Pb(ii) and Cu(ii) respectively; whereas the probe 9 exhibited an LoD of 5.06 µM and 7.52 µM for Pb(ii) and Cu(ii), respectively. The job's plot for the probe demonstrates the formation of a 1 : 1 complex between the metal and ligand. Furthermore, the interaction of the free probes with the metal ions in the metal-ligand complex was elucidated through 1H NMR analysis and validated theoretically using Density Functional Theory (DFT) simulations with the B3LYP/6-311G++(d,p) and B3LYP/LANL2DZ basis sets for geometry optimization of the probes and their corresponding metal complexes. These findings offer a reliable approach to Cu(ii) and Pb(ii) ion detection and can be further used for the potential applications in environmental monitoring and analytical chemistry.

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