18,161 results match your criteria: "European Molecular Biology Laboratory; Imaging Centre[Affiliation]"

Background: Phenylketonuria (PKU) is an autosomal recessive inherited disorder of phenylalanine (Phe) metabolism that results from a deficiency of phenylalanine hydroxylase (PAH). Patients with PKU rely on amino acid mixtures and low-protein diets, which often exhibit an acidic nature and pose various challenges to oral health. The objective of the study was to evaluate oral care habits of PKU patients in Latvia and the impact of the recommendations developed on improving oral care.

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Introduction: The agriculture genomics community has numerous data submission standards available, but the standards for describing and storing single-cell (SC, e.g., scRNA- seq) data are comparatively underdeveloped.

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The Indo-European languages are among the most widely spoken in the world, yet their early diversification remains contentious. It is widely accepted that the spread of this language family across Europe from the 5th millennium BP correlates with the expansion and diversification of steppe-related genetic ancestry from the onset of the Bronze Age. However, multiple steppe-derived populations co-existed in Europe during this period, and it remains unclear how these populations diverged and which provided the demographic channels for the ancestral forms of the Italic, Celtic, Greek, and Armenian languages.

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Bullous pemphigoid and mucous membrane pemphigoid humoral responses differ in reactivity towards BP180 midportion and BP230.

Front Immunol

December 2024

Molecular and Cell Biology Laboratory, Istituto Dermopatico dell'Immacolata (IDI)-IRCCS, Rome, Italy.

Background: Bullous pemphigoid (BP) and mucous membrane pemphigoid (MMP) are rare autoimmune blistering disorders characterized by autoantibodies (autoAbs) targeting dermo-epidermal junction components such as BP180 and BP230. The differential diagnosis, based on both the time of appearance and the extension of cutaneous and/or mucosal lesions, is crucial to distinguish these diseases for improving therapy outcomes and delineating the correct prognosis; however, in some cases, it can be challenging. In addition, negative results obtained by commercially available enzyme-linked immunosorbent assays (ELISAs) with BP and MMP sera, especially from patients with ocular involvement, often delay diagnosis and treatment, leading to a greater risk of poor outcomes.

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The Bronchodilator and Anti-Inflammatory Effect of Long-Acting Muscarinic Antagonists in Asthma: An EAACI Position Paper.

Allergy

December 2024

Allergy Unit, Hospital Regional Universitario de Malaga, IBIMA-Plataforma BIONAND, RICORS Inflammatory Diseases, Department of Medicine and Dermatology, Universidad de Malaga, Malaga, Spain.

As cholinergic innervation is a major contributor to increased vagal tone and mucus secretion, inhaled long-acting muscarinic antagonists (LAMA) are a pillar for the treatment of chronic obstructive pulmonary disease and asthma. By blocking the muscarinic receptors expressed in the lung, LAMA improve lung function and reduce exacerbations in asthma patients who remained poorly controlled despite treatment with inhaled corticosteroids and long-acting β2 agonists. Asthma guidelines recommend LAMA as a third controller to be added on before the initiation of biologicals.

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A modular toolbox for the optogenetic deactivation of transcription.

Nucleic Acids Res

December 2024

Institute of Pharmacy and Molecular Biotechnology (IPMB), Faculty of Engineering Sciences, Heidelberg University, Im Neuenheimer Feld 364, Heidelberg 69120, Germany.

Light-controlled transcriptional activation is a commonly used optogenetic strategy that allows researchers to regulate gene expression with high spatiotemporal precision. The vast majority of existing tools are, however, limited to light-triggered induction of gene expression. Here, we inverted this mode of action and created optogenetic systems capable of efficiently terminating transcriptional activation in response to blue light.

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Intrinsic-dimension analysis for guiding dimensionality reduction and data fusion in multi-omics data processing.

Artif Intell Med

December 2024

AnacletoLab, Computer Science Department, Università degli Studi di Milano, Milan, Italy; Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA; CINI, Infolife National Laboratory, Roma, Italy; Department of Computer Science, Aalto University, Espoo, Finland. Electronic address:

Multi-omics data have revolutionized biomedical research by providing a comprehensive understanding of biological systems and the molecular mechanisms of disease development. However, analyzing multi-omics data is challenging due to high dimensionality and limited sample sizes, necessitating proper data-reduction pipelines to ensure reliable analyses. Additionally, its multimodal nature requires effective data-integration pipelines.

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Article Synopsis
  • The Open Targets Platform is an open-source knowledge base designed for identifying and prioritizing drug targets with enhanced data and tools.
  • Significant updates include a revamped target-disease associations page featuring interactive elements and a new Target Prioritisation view, allowing users to evaluate targets based on clinical relevance and safety.
  • The platform now also incorporates a direction of effect assessment from various evidence sources, illustrating how genetic variations impact target functions, thereby aiding in the understanding of disease treatment mechanisms.
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Ensembl 2025.

Nucleic Acids Res

December 2024

European Molecular Biology Laboratory, European Bioinformatics Institute (EMBL-EBI), Wellcome Genome Campus, Hinxton, Cambridge CB10 1SD, UK.

Ensembl (www.ensembl.org) is an open platform integrating publicly available genomics data across the tree of life with a focus on eukaryotic species related to human health, agriculture and biodiversity.

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An in silico redesign of the secondary quinone electron acceptor (Q) binding pocket of the D1 protein of Photosystem II (PSII) suggested that mutations of the F265 residue would affect atrazine binding. Chlamydomonas reinhardtii mutants F265T and F265S were produced to obtain atrazine-hypersensitive strains for biosensor applications, and the mutants were indeed found to be more atrazine-sensitive than the reference strain IL. Fluorescence and thermoluminescence data agree with a weak driving force and confirm slow electron transfer but cannot exclude an additional effect on protonation of the secondary quinone.

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Background: Previous studies have found adverse effects on mental health following infection with SARS-CoV-2. This study investigates whether mental health is also impaired in unknowingly infected individuals. In addition, the relevance of the severity of the infection and the time since the onset of infection were analyzed.

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Circular RNA (circRNA) is a candidate for next-generation messenger RNA therapeutics owing to its remarkable stability. Here we describe trans-splicing-based methods for the synthesis of circRNAs over 8,000 nucleotides. The methods are independent of bacterial sequences, outperform the permuted intron-exon method and allow for the incorporation of RNA modifications.

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How to build the virtual cell with artificial intelligence: Priorities and opportunities.

Cell

December 2024

Chan Zuckerberg Initiative, Redwood City, CA, USA; Department of Bioengineering, Stanford University, Stanford, CA, USA; Department of Applied Physics, Stanford University, Stanford, CA, USA. Electronic address:

Cells are essential to understanding health and disease, yet traditional models fall short of modeling and simulating their function and behavior. Advances in AI and omics offer groundbreaking opportunities to create an AI virtual cell (AIVC), a multi-scale, multi-modal large-neural-network-based model that can represent and simulate the behavior of molecules, cells, and tissues across diverse states. This Perspective provides a vision on their design and how collaborative efforts to build AIVCs will transform biological research by allowing high-fidelity simulations, accelerating discoveries, and guiding experimental studies, offering new opportunities for understanding cellular functions and fostering interdisciplinary collaborations in open science.

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A pooled analysis of host factors that affect nucleotide excision repair in humans.

Mutagenesis

December 2024

Department of Pharmacology and Toxicology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, 6200 Maastricht, Netherlands.

Article Synopsis
  • Nucleotide excision repair (NER) is essential for fixing DNA damage from toxins, and a European study aimed to compile data on NER activity.
  • The study analyzed NER activity from 738 individuals using blood samples, highlighting that females generally had higher NER activity than males, especially among older women.
  • The findings also indicated that having a normal BMI correlated with higher NER activity, while smoking appeared to impact NER differently between sexes; however, the broader implications of varying NER levels for health remain uncertain.
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Structural insights into context-dependent inhibitory mechanisms of chloramphenicol in cells.

Nat Struct Mol Biol

December 2024

Structural and Computational Biology Unit, European Molecular Biology Laboratory (EMBL), Heidelberg, Germany.

Ribosome-targeting antibiotics represent an important class of antimicrobial drugs. Chloramphenicol (Cm) is a well-studied ribosomal peptidyl transferase center (PTC) binder and growing evidence suggests that its inhibitory action depends on the sequence of the nascent peptide. How such selective inhibition on the molecular scale manifests on the cellular level remains unclear.

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Versatile DNA and polypeptide-based structures have been designed based on complementary modules. However, polypeptides can also form higher oligomeric states. We investigated the introduction of tetrameric modules as a substitute for coiled-coil dimerization units used in previous modular nanostructures.

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Mega scientific conferences increasingly suffer from the need for short and poster presentations without discussion. An alternative is to organize workshops in hotels large enough to accommodate all participants. This significantly increases the opportunities for constructive discussion during breakfasts, lunches, dinners and long evenings that can bring together experts of scientific and clinical sub-specialties and young fellows.

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New developments for the Quest for Orthologs benchmark service.

NAR Genom Bioinform

December 2024

Department of Biochemistry and Biophysics, Stockholm University, Science for Life Laboratory, Box 1031, SE-17121 Solna, Sweden.

The Quest for Orthologs (QfO) orthology benchmark service (https://orthology.benchmarkservice.org) hosts a wide range of standardized benchmarks for orthology inference evaluation.

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π-HuB: the proteomic navigator of the human body.

Nature

December 2024

State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China.

The human body contains trillions of cells, classified into specific cell types, with diverse morphologies and functions. In addition, cells of the same type can assume different states within an individual's body during their lifetime. Understanding the complexities of the proteome in the context of a human organism and its many potential states is a necessary requirement to understanding human biology, but these complexities can neither be predicted from the genome, nor have they been systematically measurable with available technologies.

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Epitranscriptomic rRNA fingerprinting reveals tissue-of-origin and tumor-specific signatures.

Mol Cell

January 2025

Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Dr. Aiguader 88, Barcelona 08003, Spain; Universitat Pompeu Fabra (UPF), Barcelona 08003, Spain; ICREA, Passeig Lluís Companys 23, Barcelona 08010, Spain. Electronic address:

Article Synopsis
  • Mammalian ribosomal RNA (rRNA) has over 220 modifications, but how these modifications are regulated across tissues and conditions is still unclear.
  • Researchers used direct RNA sequencing to analyze rRNA modifications in humans and mice, discovering tissue- and developmental stage-specific modification patterns, including new sites not previously documented.
  • They established "epitranscriptomic fingerprinting," a method enabling accurate identification of tissues and tumor types, and showed that rRNA modification patterns could effectively distinguish normal and tumor samples in lung cancer patients with minimal data.
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Supervised machine learning (ML) is used extensively in biology and deserves closer scrutiny. The Data Optimization Model Evaluation (DOME) recommendations aim to enhance the validation and reproducibility of ML research by establishing standards for key aspects such as data handling and processing, optimization, evaluation, and model interpretability. The recommendations help to ensure that key details are reported transparently by providing a structured set of questions.

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Background And Aims: Several studies have supported the role of innate immune system as a key factor in the sterile inflammation underlying the pathophysiology of atherosclerosis in mice. However, its involvement in humans remains unclear. This study aimed to explore the association between neutrophil count, and the intima-media thickness of common carotid arteries (IMT-CC), as well as the potential impact of long-term dietary interventions on these associations.

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The SWI/SNF (SWItch/Sucrose Non-Fermentable) chromatin remodeling complex is involved in various aspects of plant development and stress responses. Here, we investigated the role of BRM (BRAHMA), a core catalytic subunit of the SWI/SNF complex, in Arabidopsis thaliana seed biology. brm-3 seeds exhibited enlarged size, reduced yield, increased longevity, and enhanced secondary dormancy, but did not show changes in primary dormancy or salt tolerance.

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Artificial intelligence in tuberculosis: a new ally in disease control.

Breathe (Sheff)

October 2024

Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Computational Biology, Neuherberg, Munich, Germany.

The challenges to effective tuberculosis (TB) disease control are considerable, and the current global targets for reductions in disease burden seem unattainable. The combination of complex pathophysiology and technical limitations results in difficulties in achieving consistent, reliable diagnoses, and long treatment regimens imply serious physiological and socioeconomic consequences for patients. Artificial intelligence (AI) applications in healthcare have significantly improved patient care regarding diagnostics, treatment and basic research.

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Motivation: High confidence structure prediction models have become available for nearly all protein sequences. More than 200 million AlphaFold2 models are now publicly available. We observe that there can be significant variability in the prediction confidence as judged by plDDT scores across a protein family.

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