5,152 results match your criteria: "University Medical Center of the Johannes-Gutenberg University[Affiliation]"

Highly specific targeting of dendritic cells in vivo is crucial for the development of effective tumor nanovaccines. This group recently presented an antibody-functionalized nanocarrier system able to maintain its targeting properties when transferred from in vitro to in vivo studies. However, producing this system requires long synthesis times and involves high expenses due to the involved site-specific enzymatic multi-step modification procedure of the antibody.

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Transcatheter Valve Repair for Tricuspid Regurgitation: 1-Year Results from a Large European Real-World Registry.

J Am Coll Cardiol

October 2024

Medizinische Klinik und Poliklinik I, LMU Klinikum, LMU München, Munich, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany. Electronic address:

Background: Tricuspid valve transcatheter edge-to-edge repair has emerged as a valuable treatment option for patients with severe tricuspid regurgitation (TR).

Objectives: This study aims to investigate the safety and effectiveness of the PASCAL transcatheter valve repair system in treating severe TR in a real-world patient population.

Methods: The PASTE (PASCAL for Tricuspid Regurgitation-a European registry) study is an investigator-initiated, multicenter, retrospective, and prospective observational cohort analysis conducted across 16 European heart valve centers including consecutive patients treated with the PASCAL transcatheter valve repair system from February 2019 to November 2023.

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The Ritvo Autism Asperger Diagnostic Scale-Revised (RAADS-R) demonstrated excellent results in its original study, with a sensitivity of 97% and a specificity of 100% (Ritvo et al. in J Autism Dev Disord 41:1076-1089, 2011). As a result, it was included in the National Institute for Health and Care Excellence (NICE) guidelines (Recommendations | Autism spectrum disorder in adults: diagnosis and management | Guidance | NICE, 2022).

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Adaptations in hepatic glucose metabolism after chronic social defeat stress in mice.

Sci Rep

October 2024

Department for Developmental Origins of Disease (DDOD), Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.

Chronic stress has been shown to induce hyperglycemia in both peripheral blood and the brain, yet the detailed mechanisms of glucose metabolism under stress remain unclear. Utilizing C-labeled glucose to trace metabolic pathways, our study investigated the impact of stress by chronic social defeat (CSD) on glucose metabolites in the liver and brain one week post-stress. We observed a reduction in C-enrichment of glucose metabolites in the liver, contrasting with unchanged levels in the brain.

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The HOMO-LUMO Gap as Discriminator of Biotic from Abiotic Chemistries.

Life (Basel)

October 2024

Evolutionary Biochemistry and Redox Medicine, Institute for Pathobiochemistry, University Medical Center of the Johannes Gutenberg University, 55128 Mainz, Germany.

Low-molecular-mass organic chemicals are widely discussed as potential indicators of life in extraterrestrial habitats. However, demarcation lines between biotic chemicals and abiotic chemicals have been difficult to define. Here, we have analyzed the potential utility of the quantum chemical property, HOMO-LUMO gap (HLG), as a novel proxy variable of life, since a significant trend towards incrementally smaller HLGs has been described in the genetically encoded amino acids.

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The objective of this study was to develop two lipid nanoparticle (LNP) formulations capable of efficiently expressing a reporter mRNA while co-delivering the anti-inflammatory drug dexamethasone (DX) to reduce inflammatory side effects in protein replacement therapies. Two types of LNPs were developed, in which 25% of cholesterol was replaced by DX. These LNPs contained either 1,2-distearoyl-sn-glycero-3-phosphocholine (DSPC) or 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine (DOPE) as a helper lipid.

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Age-related cognitive decline has become an increasingly relevant public health issue. However, risk and protective factors of cognitive decline have yet to be investigated prospectively taking into account genetic, lifestyle, physical and mental health factors. Population-based data from middle-aged (40 to 59 years; N = 2,764) and older individuals (60 to 80 years; N = 1,254) were drawn from a prospective community cohort study using the Tower of London (TOL) planning task.

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Coronary CT angiography-based FFR with ultrahigh-resolution photon-counting detector CT: Intra-individual comparison to energy-integrating detector CT.

Eur J Radiol

December 2024

Department of Radiology and Radiological Science, Medical University of South Carolina, 25 Courtenay Dr, Charleston, SC 29425, United States; Department of Diagnostic and Interventional Radiology, University Medical Center of the Johannes Gutenberg-University, 1 Langenbeckstraße, Mainz 55131, Germany.

Purpose: To evaluate the feasibility of CT angiography-derived fractional flow reserve (CT-FFR) calculations on ultrahigh-resolution (UHR) photon-counting detector (PCD)-CT series and to intra-individually compare the results with energy-integrating (EID)-CT measurements.

Method: Prospective patients with calcified plaques detected on EID-CT between April 1st, 2023 and January 31st, 2024 were recruited for a UHR CCTA on PCD-CT within 30 days. PCD-CT was performed using the same or a lower CT dose index and an equivalent volume of contrast media.

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Pulp Vitality Diagnosis by Means of an Optical Pulp Scanning Device.

Dent J (Basel)

October 2024

Department of Restorative, Preventive and Pediatric Dentistry, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland.

This study aimed to evaluate the diagnostic accuracy of an Optical Pulp Scanning (OPS) device. A total of 421 teeth from 107 emergency patients were investigated. Pulp vitality was assessed using conventional diagnostic methods (ConvDia), cold pulp testing (CPT), and a final diagnosis (FinDia) based on the pulp chamber contents (PCCs) of teeth requiring endodontic treatment (EmeTe).

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Zebrafish larvae show a rapid increase in cortisol in response to acute stressors, followed by a decline. While these responses are documented, both the duration of the refractory period to repeated stressors and the role of glucocorticoid receptors (GR) in specific phases of the glucocorticoid negative feedback are still being clarified. We explored these questions using water vortices as stressors, combined with GR blockage and measurements of whole-body cortisol in zebrafish larvae subjected to single and repeated stress protocols.

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Background: Glycosphingolipids (GSLs) are membrane lipids composed of a ceramide backbone linked to a glycan moiety. Ganglioside biosynthesis is a part of the GSL metabolism, which involves sequential reactions catalyzed by specific enzymes that in part have a poor substrate specificity. GSLs are deregulated in cancer, thus playing a role as potential biomarkers for personalized therapy or subtype classification.

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Subclassification of obesity for precision prediction of cardiometabolic diseases.

Nat Med

October 2024

Genetic and Molecular Epidemiology Unit, Lund University Diabetes Centre, Department of Clinical Science, Lund University, Helsingborg, Sweden.

Obesity and cardiometabolic disease often, but not always, coincide. Distinguishing subpopulations within which cardiometabolic risk diverges from the risk expected for a given body mass index (BMI) may facilitate precision prevention of cardiometabolic diseases. Accordingly, we performed unsupervised clustering in four European population-based cohorts (N ≈ 173,000).

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RNA modifications play a pivotal role in the regulation of RNA chemistry within cells. Several technologies have been developed with the goal of using RNA modifications to regulate cellular biochemistry selectively, but achieving selective and precise modifications remains a challenge. Here, we show that by using designer organelles, we can modify mRNA with pseudouridine in a highly selective and guide-RNA-dependent manner.

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Neoadjuvant combination immunotherapy in MSI/dMMR colorectal cancer.

Trends Cancer

December 2024

Department of Cancer Immunology & Cancer Immunotherapy, German Cancer Research Center (DKFZ), Heidelberg, Germany; Helmholtz Institute for Translational Oncology (HI-TRON), Mainz, Germany; University Cancer Center Mainz (UCT Mainz), University Medical Center of the Johannes Gutenberg-University of Mainz, Mainz, Germany; Department of Hematology, Medical Oncology and Pneumology, University Medical Center of the Johannes Gutenberg-University of Mainz, Mainz, Germany. Electronic address:

Neoadjuvant immune checkpoint inhibition (ICI) is a new approach to treat patients with colorectal cancer (CRC). The effects of combined neoadjuvant ICI in locally advanced, DNA mismatch repair (dMMR)-deficient/microsatellite instable (MSI) CRC were recently reported by de Gooyer et al. from the NICHE-3 trial.

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Children and young people with cancer face barriers when engaging with exercise, such as treatment-related side effects, psychosocial burdens and lack of individualised provisions. Digital health tools, such as smartphone applications, have emerged as a promising driver to support healthcare provisions in exercise prescription among patients. It is vital to explore how such technologies can be developed more effectively in order to strengthen the evidence supporting their use and for more appropriate implementation within healthcare.

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This preclinical feasibility study investigates the potential of utilizing the hinotori™ robot system for esophagectomy. In three human cadaver models, the esophagus was successfully mobilized and resected using the hinotori™ system, with a mean thoracic procedure time of 57 minutes. The system allowed for precise dissection and radical lymphadenectomy without arm collision, attributed to its versatile design and docking-free trocars.

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Article Synopsis
  • Large language models (LLMs) show promise in medicine due to their extensive knowledge and reasoning abilities across various medical domains.
  • This study reveals a significant vulnerability where manipulating just 1.1% of the LLM's weights can introduce incorrect biomedical facts, affecting the accuracy of its outputs.
  • These findings highlight critical security and trust issues regarding LLMs in healthcare, underscoring the necessity for stronger safeguards, verification processes, and controlled access to ensure their safe and reliable usage.
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Objectives: To compare standard-resolution balanced steady-state free precession (bSSFP) cine images with cine images acquired at low resolution but reconstructed with a deep learning (DL) super-resolution algorithm.

Materials And Methods: Cine cardiovascular magnetic resonance (CMR) datasets (short-axis and 4-chamber views) were prospectively acquired in healthy volunteers and patients at normal (cine: 1.89 × 1.

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Light influences circadian rhythms, including that of the stress hormone cortisol. Cortisol, in turn, has been observed to promote expression of the anti-inflammatory cytokine IL-10. It is thus of interest whether the cytokine IL-10 is also influenced by light, perhaps in accord with the diurnal variations in cortisol.

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Article Synopsis
  • MicroRNAs (miRNAs) play a key role in brain development but their regulatory networks are not well understood, prompting researchers to study them in mouse embryonic cortex at various stages.
  • Through small RNA sequencing, specific clusters of co-regulated miRNAs were identified, with certain miRNAs acting as central players during early and late neurogenesis.
  • The research also revealed that combinations of miRNAs can enhance gene silencing, providing insights into how miRNA networks influence factors essential for neuronal differentiation and overall brain development.
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Towards international collaboration of clinical research networks for EMDR: the EMDR Pain Network Germany.

Front Psychol

October 2024

Department of General Internal Medicine and Psychosomatics, Heidelberg University, Heidelberg, Germany.

Background: Eye Movement Desensitization and Reprocessing (EMDR) is an evidence-based treatment, primarily established for post-traumatic stress disorder (PTSD). While it is increasingly being applied to chronic pain, its efficacy in this area is not yet supported by the same level of evidence as that which exists for PTSD. Studies in this area often show heterogeneous results with small case numbers, and the potential side effects of EMDR in the treatment of chronic pain are not well understood.

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Sarcopenia Influences Clinical Outcome in Hospitalized Patients with Peripheral Artery Disease Aged 75 Years and Older.

Ann Vasc Surg

January 2025

Department of Cardiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany; Center for Thrombosis and Hemostasis (CTH), University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany; Department of Sports Medicine, Medical Clinic VII, University Hospital Heidelberg, Heidelberg, Germany. Electronic address:

Article Synopsis
  • * A study of 1,166,848 hospitalizations from 2005 to 2020 found that the prevalence of sarcopenia in PAD patients increased from 0.05% to 0.34%, with those affected experiencing more comorbidities and a higher likelihood of complications.
  • * Patients with sarcopenia received fewer effective treatments for PAD and had increased rates of amputations, severe cardiovascular events, and in-hospital mortality, highlighting the need for improved recognition of sarcopenia in clinical settings. *
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