21,052 results match your criteria: "Heinrich Heine-University[Affiliation]"

Meningiomas are the most common primary intracranial tumors of adults. For meningiomas that progress or recur despite surgical resection and radiotherapy, additional treatment options are limited due to lack of proven efficacy. Meningiomas show recurring molecular aberrations, which may serve as predictive markers for systemic pharmacotherapies with targeted drugs or immunotherapy, radiotherapy or radioligand therapy.

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Gliomas are the most common parenchymal tumors of the central nervous system (CNS). With regard to their still unclear etiology, several recent studies have provided evidence of a new category of pathogenic elements called human endogenous retroviruses (HERVs) which seem to contribute to the evolution and progression of many neurological diseases such as amyotrophic lateral sclerosis (ALS), schizophrenia, chronic inflammatory polyneuropathy (CIDP) and, particularly, multiple sclerosis (MS). In these diseases, HERVs exert effects on cellular processes such as inflammation, proliferation, and migration.

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Evaluation of spatiotemporal associations between COVID-19 pandemic waves and the incidence of pediatric type 1 diabetes in Germany considering time lags: A register-based ecological study.

Diabetes Res Clin Pract

December 2024

Institute for Biometrics and Epidemiology, German Diabetes Center (DDZ), Leibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf, Düsseldorf, Germany; German Center for Diabetes Research (DZD), Partner Düsseldorf, Munich-Neuherberg, Germany.

To analyze the ecological relationship between COVID-19 incidence in the total population and type 1 diabetes (T1D) incidence in children and adolescents, spatiotemporal models were applied considering time lags from 0 to 12 months. The results do not indicate a positive correlation between COVID-19 incidence and T1D incidence.

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Elucidating acquired PARP inhibitor resistance in advanced prostate cancer.

Cancer Cell

December 2024

The Institute of Cancer Research, London, UK; The Royal Marsden NHS Foundation Trust, London, UK. Electronic address:

Article Synopsis
  • - PARP inhibitors show promise in treating castration-resistant prostate cancer (CRPC) with homologous recombination repair (HRR) defects, but the reasons behind resistance are not completely understood.
  • - A study from the TOPARP-B trial found that 79% of BRCA2/PALB2-mutated tumors exhibited reversion mutations at the end of treatment, with many related to POLQ-mediated DNA repair mechanisms.
  • - In cases of BRCA2 homozygous deletions, rare subclones lacking the BRCA2 deletion are selected for after PARP inhibitor treatment, indicating the necessity for restored HRR function in developing resistance.
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ComFB, a new widespread family of c-di-NMP receptor proteins.

bioRxiv

November 2024

Interfaculty Institute of Microbiology and Infection Medicine, Organismic Interactions Department, Cluster of Excellence "Controlling Microbes to Fight Infections", Eberhard Karls University of Tübingen, 72076 Tübingen, Germany.

Cyclic dimeric GMP (c-di-GMP) is a widespread bacterial second messenger that controls a variety of cellular functions, including protein and polysaccharide secretion, motility, cell division, cell development, and biofilm formation, and contributes to the virulence of some important bacterial pathogens. While the genes for diguanylate cyclases and c-di-GMP hydrolases (active or mutated) can be easily identified in microbial genomes, the list of c-di-GMP receptor domains is quite limited, and only two of them, PliZ and MshEN, are found across multiple bacterial phyla. Recently, a new c-di-GMP receptor protein, named CdgR or ComFB, has been identified in cyanobacteria and shown to regulate their cell size and, more recently, natural competence.

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miR-3606-3p alleviates skin fibrosis by integratively suppressing the integrin/FAK, p-AKT/p-ERK, and TGF-β signaling cascades.

J Adv Res

November 2024

Department of Dermatology, Huashan Hospital and Human Phenome Institute, Fudan University, Shanghai, China. Electronic address:

Introduction: Fibroblast abnormalities are crucial causes of skin fibrosis, including systemic sclerosis (SSc) and keloids. However, their mechanisms, including underlying microRNA regulatory mechanisms, remain elusive.

Objectives: This study aimed to evaluate the roles, mechanisms, and therapeutic potential of miR-3606-3p in regulating multiple fibroblast abnormalities.

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There is a body of evidence that ultrafine particles (UFP, those with diameters ≤ 100 nm) might have significant impacts on health. Accordingly, identifying sources of UFP is essential to develop abatement policies. This study focuses on urban Europe, and aims at identifying sources and quantifying their contributions to particle number size distribution (PNSD) using receptor modelling (Positive Matrix Factorization, PMF), and evaluating long-term trends of these source contributions using the non-parametric Theil-Sen's method.

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Personality functioning and mental distress in leaders of small- and medium sized enterprises.

PLoS One

November 2024

Department of Psychosomatic Medicine and Psychotherapy, University Hospital Tuebingen, University of Tuebingen, Tuebingen, Baden-Wuerttemberg, Germany.

Objective: For leaders of small and medium-sized enterprises (SMEs) grappling with diverse tasks and stressors, personality functioning can play a key role on stress perception and building and managing professional relationships. We investigated the relationship between SME leaders' personality functioning on the dimensions of self-perception and self-regulation on perceived stress reactivity (PSR), and symptoms of anxiety and depression.

Methods: A cross-sectional sub analysis of a multi-centre RCT project was performed.

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Complex macro-scale patterns of brain activity that emerge during periods of wakeful rest provide insight into the organisation of neural function, how these differentiate individuals based on their traits, and the neural basis of different types of self-generated thoughts. Although brain activity during wakeful rest is valuable for understanding important features of human cognition, its unconstrained nature makes it difficult to disentangle neural features related to personality traits from those related to the thoughts occurring at rest. Our study builds on recent perspectives from work on ongoing conscious thought that highlight the interactions between three brain networks - ventral and dorsal attention networks, as well as the default mode network.

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Effects of sodium-glucose co-transporter inhibitors on individual clinical endpoints and quality of life.

ESC Heart Fail

November 2024

Department of Internal Medicine B (Cardiology, Angiology, Pneumology and Internal Intensive Care Medicine), University Medicine Greifswald, Greifswald, Germany.

Aims: Sodium-glucose co-transporter inhibitors (SGLTis) have cardiovascular protective effects. We aimed to assess the effects of SGLTis on individual hard clinical endpoints and quality of life (QoL) in patients with cardiovascular risk factors.

Methods And Results: Data was searched in PubMed, Embase, Cochrane Library and clinicaltrials.

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In the United States, individuals with disabilities and those aged ≥65 can supplement their Medicare with so-called stand-alone Medicare Part D prescription drug plans. Beneficiaries can switch their stand-alone prescription drug plans annually, but most do not. Indirect evidence has raised concerns that non-switchers do not even make plan comparisons (labeled "inattention"), but direct evidence is scarce.

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Background: Facial emotion recognition (FER) deficits are being considered as core features of social cognitive deficits in schizophrenia, associated with socio-occupational dysfunction. Social cognition intervention programs have been shown to improve these deficits; however, there are no such intervention strategies in India. In this study, we aim to examine the efficacy of Training of Affect Recognition - Indian Version (TAR-IV) to enhance the FER abilities of people with schizophrenia.

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Background And Objectives: Patients with rare diseases like hereditary angioedema (HAE) are usually referred to an angioedema center to ensure guideline-compliant and experience-based therapy. Even though there are established guidelines and several approved therapeutics, there are still open questions and situations in the daily care of HAE patients, where an exchange between centers is needed.

Materials And Methods: A survey was conducted among physicians from German angioedema centers regarding challenges and issues in everyday HAE treatment.

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Considerations in the search for epistasis.

Genome Biol

November 2024

Commonwealth Scientific and Industrial Research Organisation, Westmead, Australia.

Epistasis refers to changes in the effect on phenotype of a unit of genetic information, such as a single nucleotide polymorphism or a gene, dependent on the context of other genetic units. Such interactions are both biologically plausible and good candidates to explain observations which are not fully explained by an additive heritability model. However, the search for epistasis has so far largely failed to recover this missing heritability.

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Objective: Children in families with parental cancer may experience emotional, social or physical problems. The aims are to analyze child, parent and family-based determinants of children's health-related quality of life (HRQoL) and their experiences of parental cancer.

Methods: As part of a mixed-methods, multicenter, prospective, interventional non-randomized study "Family-SCOUT," a family-centered intervention in the form of care and case management was developed.

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Relative source credibility affects the continued influence effect: Evidence of rationality in the CIE.

Cognition

January 2025

Institute for Experimental Psychology, Faculty of Mathematics and Natural Sciences, Heinrich Heine University Düsseldorf, Germany. Electronic address:

The Continued Influence Effect (CIE) is the phenomenon that retracted information often continues to influence judgments and inferences. The CIE is rational when the source that retracts the information (the retractor) is less credible than the source that originally presented the information (the informant; Connor Desai et al., 2020).

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Survival and Complications of Partial Coverage Restorations on Posterior Teeth-A Systematic Review and Meta-Analysis.

J Esthet Restor Dent

November 2024

Department of Prosthodontics, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany.

Objective: To determine the clinical performance of partial coverage restorations (PCR) (onlays, occlusal veneers, and partial crowns) composed of different ceramic and ceramic-based materials to treat extended posterior defects.

Materials And Methods: MEDLINE, Scopus, CENTRAL, ClinicalTrials.gov, and the International Clinical Trials Registry Platform were searched (inception-February 2024) for randomized controlled trials (RCT) comparing posterior PCRs composed of different ceramic and ceramic-based materials with a minimum follow-up of 1 year.

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Online coupling of size exclusion chromatography to capillary-enhanced Raman spectroscopy for the identification of protein classes in hemolyzed blood serum.

Anal Bioanal Chem

November 2024

Institute of Pharmaceutics and Biopharmaceutics, Faculty of Mathematics and Natural Sciences, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany.

The analysis of serum for biomarkers is a standard method in clinical diagnosis and health assessment. The application of Raman spectroscopy to probe biomarkers in serum is increasingly investigated due to its time- and cost-efficiency. However, time-consuming sample preparation is often required to analyze the serum samples.

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NMR 15N Relaxation Experiments for the Investigation of Picosecond to Nanoseconds Structural Dynamics of Proteins.

J Vis Exp

November 2024

Institute of Biological Information Processing (IBI-7), Forschungszentrum Jülich; Institute of Physical Biology, Faculty of Mathematics and Natural Sciences, Heinrich Heine University Düsseldorf;

Nuclear magnetic resonance (NMR) spectroscopy allows studying proteins in solution and under physiological temperatures. Frequently, either the amide groups of the protein backbone or the methyl groups in side chains are used as reporters of structural dynamics in proteins. A structural dynamics study of the protein backbone of globular proteins on N labeled and fully protonated samples usually works well for proteins with a molecular weight of up to 50 kDa.

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Practical hints for the diagnosis of mixed neuroendocrine-non-neuroendocrine neoplasms of the digestive system.

World J Gastrointest Oncol

November 2024

Department of Diagnostics and Public Health, Section of Pathology, University of Verona, University and Hospital Trust of Verona, Verona 37134, Italy.

In this editorial, a comment on the article by Díaz-López published in the recent issue of the 2024 is provided. We focus on the practical implications critical for providing a correct and complete diagnosis of mixed neuroendocrine-non-neuroendocrine neoplasm (MiNEN) in the gastrointestinal system. The diagnosis of MiNEN begins with the recognition of neuroendocrine features in one component of a biphasic tumor.

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Affordable genotyping methods are essential in genomics. Commonly used genotyping methods primarily support single nucleotide variants and short indels but neglect structural variants. Additionally, accuracy of read alignments to a reference genome is unreliable in highly polymorphic and repetitive regions, further impacting genotyping performance.

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The amino acid transporter UmamiT20 confers susceptibility.

bioRxiv

October 2024

Heinrich Heine University Düsseldorf, Faculty of Mathematics and Natural Sciences, Institute for Molecular Physiology, Düsseldorf, Germany.

• Induction of SWEET sugar transporters by bacterial pathogens via transcription activator-like (TAL) effectors is necessary for successful blight infection of rice, cassava and cotton, - likely providing sugars for bacterial propagation. • Here, we show that infection of by the necrotrophic fungus causes increased accumulation of amino acid transporter UmamiT20 mRNA in leaves. UmamiT20 protein accumulates in leaf veins surrounding the lesions after infection.

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