5,115 results match your criteria: "Center for Bioinformatics[Affiliation]"

Small-RNA sequencing reveals potential serum biomarkers for gallbladder cancer: Results from a three-stage collaborative study of large European prospective cohorts.

Eur J Cancer

January 2025

Statistical Genetics Research Group, Institute of Medical Biometry, Heidelberg University, Heidelberg, Germany; Laboratory of Biostatistics for Precision Oncology, Institut de Cancérologie Strasbourg Europe, France. Electronic address:

Gallbladder cancer (GBC) is an aggressive disease with limited treatment options but high prevention potential. GBC tumours take 10-20 years to develop, a timeframe that holds potential for early detection. MicroRNAs (miRNAs) play a central role in abnormal cell processes, and circulating miRNAs may constitute valuable biomarkers of early disease.

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Gut Microbial Utilization of the Alternative Sweetener, D-Allulose, via AlsE.

bioRxiv

November 2024

College of Computer, Mathematical and Natural Sciences, University of Maryland, College Park, Maryland, USA.

D-allulose, a rare sugar with emerging potential as a low-calorie sweetener, has garnered attention as an alternative to other commercially available alternative sweeteners, such as sugar alcohols, which often cause severe gastrointestinal discomfort. D-allulose-6-phosphate 3-epimerase (AlsE) is a prokaryotic enzyme that converts D-allulose-6-phosphate into D-fructose-6-phopshate, enabling its use as a carbon source. However, the taxonomic breadth of AlsE across gut bacteria remains poorly understood, hindering insights into the utilization of D-allulose by microbial communities.

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RummaGEO: Automatic mining of human and mouse gene sets from GEO.

Patterns (N Y)

October 2024

Mount Sinai Center for Bioinformatics, Department of Pharmacological Sciences, Department of Artificial Intelligence and Human Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.

The Gene Expression Omnibus (GEO) has millions of samples from thousands of studies. While users of GEO can search the metadata describing studies, there is a need for methods to search GEO at the data level. RummaGEO is a gene expression signature search engine for human and mouse RNA sequencing perturbation studies extracted from GEO.

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Protocol for using Multiomics2Targets to identify targets and driver kinases for cancer cohorts profiled with multi-omics assays.

STAR Protoc

December 2024

Department of Pharmacological Sciences, Mount Sinai Center for Bioinformatics, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1603, New York, NY 10029, USA. Electronic address:

The availability of multi-omics data applied to profile cancer cohorts is rapidly increasing. Here, we present a protocol for Multiomics2Targets, a computational pipeline that can identify driver cell signaling pathways, protein kinases, and cell-surface targets for immunotherapy. We describe steps for preparing the data, uploading files, and tuning parameters.

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Harmonizome 3.0: integrated knowledge about genes and proteins from diverse multi-omics resources.

Nucleic Acids Res

January 2025

Department of Pharmacological Sciences, Mount Sinai Center for Bioinformatics, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1603 New York, NY, USA.

By processing and abstracting diverse omics datasets into associations between genes and their attributes, the Harmonizome database enables researchers to explore and integrate knowledge about human genes from many central omics resources. Here, we introduce Harmonizome 3.0, a significant upgrade to the original Harmonizome database.

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Article Synopsis
  • The goal of gene therapy is to target specific cell types using endogenous microRNA, but the link between microRNA expression and its effects is not well understood.
  • The researchers conducted an experiment measuring the stability of synthetic microRNA-responsive elements in various cell lines, overcoming biases in existing microRNA data.
  • They developed a predictive model based on this data, allowing them to create gene constructs with new response patterns, beneficial for designing microRNA-responsive devices in different contexts.
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Accounting for the impact of genotype and environment on variation in leaf respiration of wheat in Mexico and Australia.

J Exp Bot

November 2024

ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, The Australian National University, Canberra, ACT 2601, Australia.

An approach to improving radiation use efficiency (RUE) in wheat is to screen for variability in rates of leaf respiration in darkness (Rdark). We used a high-throughput system to quantify variation in Rdark among a diverse range of spring wheat genotypes (301 lines) grown in two countries (Mexico and Australia) and two seasons (2017 and 2018), and in doing so quantify the relative importance of genotype (G) and environment (E) in influencing variations in leaf Rdark. Through careful design, residual (unexplained) variation represented less than 10% of the total observed.

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The gut microbiota influences multiple aspects of human health and disease. Several studies have indicated an association between the gut microbiota and response to immune checkpoint inhibitors in various cancers, but there is scarce data from breast cancer. The randomized ALICE trial demonstrated improved progression-free survival (PFS) from adding the programmed cell death 1 ligand 1 (PD-L1) inhibitor atezolizumab (atezo) to immunomodulating chemotherapy (chemo) in metastatic triple-negative breast cancer (mTNBC), even for PD-L1 disease.

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Unveiling bat-borne viruses: a comprehensive classification and analysis of virome evolution.

Microbiome

November 2024

NHC Key Laboratory of Systems Biology of Pathogens, State Key Laboratory of Respiratory Health and Multimorbidity, National Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, P. R. China.

Article Synopsis
  • - Bats are key carriers of new zoonotic viruses like henipaviruses and coronaviruses, with many unidentified viruses highlighting the need for further research on their evolution and classification.
  • - A study employed Next Generation Sequencing on over 13,000 bat swab samples from China, revealing 846 viruses, including 120 potential new viral species that are closely related to known pathogens affecting humans and livestock.
  • - The findings enhance our understanding of the viral landscape in bats and stress the importance of monitoring these viruses for public and veterinary health, as they could pose emerging infectious disease threats.
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Article Synopsis
  • MiRNAs are a type of non-coding RNA that regulates gene expression and are crucial for various biological pathways, with most studies focused on humans and mice.
  • The miRNATissueAtlas has been developed to provide a comprehensive overview of miRNA expression across different tissues in both Homo sapiens and Mus musculus, now incorporating significantly more data and samples in its latest release.
  • The 2025 update features expression data from 799 billion reads across 61,593 samples, an increase in the variety of tissues studied, and new calculations that enhance the understanding of tissue specificity and cross-species comparisons.
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Intensive malaria control and elimination efforts have led to substantial reductions in malaria incidence over the past two decades. However, the reduction in Plasmodium falciparum malaria cases has led to a species shift in some geographic areas, with P. vivax predominating in many areas outside of Africa.

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Computational-driven discovery of AI-2 quorum sensing inhibitor targeting the 5'- methylthioadenosine/S-adenosylhomocysteine nucleosidase (MTAN) to combat drug-resistant Helicobacter pylori.

Comput Biol Med

January 2025

Central Research Laboratory, KS Hegde Medical Academy, Nitte (Deemed to be University), Mangalore, 575018, Karnataka, India; Center for Bioinformatics and Biostatistics, Nitte (Deemed to be University), Mangalore, 575018, Karnataka, India. Electronic address:

MTAN is an attainable therapeutic target for H. pylori because it may minimize virulence production, limit resistance, and impair quorum sensing without affecting gut flora. Here, 457 compounds with anti-H.

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A diverse hidradenitis suppurativa cohort: A retrospective cross-sectional study of 13,130 patients from a large US health care system database from 1995 to 2022.

J Am Acad Dermatol

November 2024

Center for Cutaneous Biology and Immunology Research, Department of Dermatology, Henry Ford Health, Detroit, Michigan; Henry Ford Health + Michigan State University Health Sciences, East Lansing, Michigan; Immunology Research Program, Henry Ford Cancer Institute, Henry Ford Health, Detroit, Michigan; Department of Medicine, College of Human Medicine, Michigan State University, East Lansing, Michigan; Department of Dermatology, Henry Ford Health, Detroit, Michigan; Cancer Biology Graduate Program, School of Medicine, Wayne State University, Detroit, Michigan; Department of Biochemistry, Microbiology, and Immunology, School of Medicine, Wayne State University, Detroit, Michigan; Department of Internal Medicine, Henry Ford Health, Detroit, Michigan. Electronic address:

Background: Most epidemiological studies of hidradenitis suppurativa (HS) have described homogeneous patient populations.

Objective: To characterize demographics, modifiable health behaviors, and comorbidities of HS patients within a diverse cohort.

Methods: A retrospective cross-sectional study of 13,130 HS patients within a health care system was conducted.

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Background: To define the optimal chemotherapy regimen for each patient we therefore used tissue from patients to identify molecular prognostic or predictive biomarkers.

Methods: Endoscopic biopsy specimens from primary lesions and surgical specimens on a phase III trial in patients with unresectable advanced or recurrent gastric cancer treated with docetaxel with cisplatin plus S-1 (DCS) or cisplatin plus S-1 (CS), were collected. We measured the mRNA expression of ERCC1 and analyzed SNPs in GSTP1 and ERCC1.

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Sequestration of gene products by decoys enhances precision in the timing of intracellular events.

Sci Rep

November 2024

Department of Electrical and Computer Engineering, Biomedical Engineering, Mathematical Sciences, Center for Bioinformatics and Computational Biology, University of Delaware, Newark, DE, 19716, USA.

Article Synopsis
  • Decoys are important in gene expression as they interact with transcription factors (TFs) and help control the timing of gene expression events through a concept called first passage time (FPT).
  • Understanding the impact of decoys on FPT is complex due to mathematical challenges, but approximations show that stable decoy-bound TFs enhance timing accuracy while reducing expression costs.
  • The research suggests that decoy dynamics are crucial for precise timing in various biological processes, such as biomolecular clocks, development, cell-cycle regulation, and maintaining cell size.
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T2DM is a serious global health problem and usually caused by unhealthy diet, such diet with high carbohydrate or monosodium glutamate (MSG). In this study, we used the T2DM mice (BALB/c) model by exposing the mice with foods high in carbohydrate (HCD) or MSG (HMD) to determine the changes in molecular expression and methylation pattern of genes correlated to the development of T2DM. The data including clinical data, i.

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The backpropagation algorithm implemented on spiking neuromorphic hardware.

Nat Commun

November 2024

Information Sciences (CCS-3), Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.

The capabilities of natural neural systems have inspired both new generations of machine learning algorithms as well as neuromorphic, very large-scale integrated circuits capable of fast, low-power information processing. However, it has been argued that most modern machine learning algorithms are not neurophysiologically plausible. In particular, the workhorse of modern deep learning, the backpropagation algorithm, has proven difficult to translate to neuromorphic hardware.

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In-depth comparative genomic analysis was conducted to predict carbon, nitrogen, and phosphate assimilation pathways in the halotolerant, acidophilic genus Acidihalobacter. The study primarily aimed to understand how the metabolic capabilities of each species can determine their roles and effects on the microbial ecology of their unique saline and acidic environments, as well as in their potential application to saline water bioleaching systems. All four genomes encoded the genes for the complete tricarboxylic acid cycle, including 2-oxoglutarate dehydrogenase, a key enzyme absent in obligate chemolithotrophic acidophiles.

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The role of astrocytes in depression, its prevention, and treatment by targeting astroglial gliotransmitter release.

Proc Natl Acad Sci U S A

November 2024

Laboratorio de Neurobiología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad Andres Bello, Santiago 8370146, Chile.

The role of ventral hippocampus (vHipp) astroglial gliotransmission in depression was studied using chronic restraint stress (CRS) and chronic unpredictable mild stress (CUMS) rodent models. CRS increased Cx43 hemichannel activity and extracellular glutamate levels in the vHipp and blocking astroglial Cx43 hemichannel-dependent gliotransmission during CRS prevented the development of depression and glutamate buildup. Moreover, the acute blockade of Cx43 hemichannels induced antidepressant effects in rats previously subjected to CRS or CUMS.

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Article Synopsis
  • - The study investigates the characteristics of the vitreous in healthy children aged 2-12 using advanced imaging techniques, finding that punctate hyperreflective vitreous opacities (PHVO) are common in this age group.
  • - Among 154 pediatric eyes and 76 adult eyes analyzed, 100% of children presented with PHVO compared to 73% of adults, highlighting a significant difference in prevalence.
  • - Results suggest that understanding these typical vitreous features in children can improve the accuracy of OCT interpretations, reducing the risk of misdiagnoses in pediatric patients.
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Comparative single-cell multiome identifies evolutionary changes in neural progenitor cells during primate brain development.

Dev Cell

October 2024

State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China; Yunnan Key Laboratory of Integrative Anthropology, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650107, China; National Resource Center for Non-Human Primates, Kunming Primate Research Center, and National Research Facility for Phenotypic & Genetic Analysis of Model Animals (Primate Facility), Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650107, China; Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Kunming 650223, China. Electronic address:

Article Synopsis
  • Understanding the differences in human brain development involves studying various cellular and genetic factors, particularly in the prefrontal cortex (PFC) of primates like macaques and mice.
  • The research found that while the overall cellular makeup of the cortex is similar across species, there are significant evolutionary changes in the properties of progenitor cells, particularly in humans.
  • Key human-specific markers like ITGA2 enhance progenitor cell growth and neuron formation, with changes in gene regulation linked to factors such as intelligence and neuropsychiatric conditions.
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BGC Atlas: a web resource for exploring the global chemical diversity encoded in bacterial genomes.

Nucleic Acids Res

January 2025

Translational Genome Mining for Natural Products, Interfaculty Institute of Microbiology and Infection Medicine Tübingen (IMIT), Interfaculty Institute for Biomedical Informatics (IBMI), University of Tübingen, Auf der Morgenstelle 28, 72076 Tübingen, Germany.

Secondary metabolites are compounds not essential for an organism's development, but provide significant ecological and physiological benefits. These compounds have applications in medicine, biotechnology and agriculture. Their production is encoded in biosynthetic gene clusters (BGCs), groups of genes collectively directing their biosynthesis.

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Article Synopsis
  • Copy number variants (CNVs) are crucial for genetic variation and evolution, but their formation and effects are not well understood, particularly concerning local genomic sequences.
  • Research indicates that specific genomic features, like long terminal repeats (LTRs) and origins of DNA replication (ARS), influence the rapid formation and adaptive significance of CNVs during evolutionary processes in glutamine-limited environments.
  • Experimental evolution in engineered strains shows that altering these genomic elements affects CNV formation rates and fitness, with a significant portion of CNVs linked to a mechanism called Origin Dependent Inverted Repeat Amplification (ODIRA).
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Improving the suppressive power of homing gene drive by co-targeting a distant-site female fertility gene.

Nat Commun

October 2024

Center for Bioinformatics, School of Life Sciences, Center for Life Sciences, Peking University, Beijing, China.

Gene drive technology has the potential to address major biological challenges. Well-studied homing suppression drives have been shown to be highly efficient in Anopheles mosquitoes, but for other organisms, lower rates of drive conversion prevent elimination of the target population. To tackle this issue, we propose a gene drive design that has two targets: a drive homing site where drive conversion takes place, and a distant site where cleavage induces population suppression.

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