Publications by authors named "Schaller T"

Despite the addition of immune checkpoint blockade to first-line chemotherapy, the prognosis for patients with small cell lung cancer (SCLC) is still devastating. For the subset of SCLC with somatostatin receptor (SSTR) overexpression, radiopharmaceutical therapy (RPT) might be an effective future treatment option. Here, we present the case of a heavily pretreated stage IV SCLC patient showing an exceptional response to SSTR-directed RPT.

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Borna disease, which is a severe encephalitis that primarily affects horses and sheep, has been recognised for over two centuries. Borna disease virus 1 (BoDV-1) has been identified as a cause of a predominantly fatal encephalitis in humans. Little scientific data exist regarding the virus' transmission, entry portal, and excretion routes.

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The CoA thioester of 2-(carboxymethyl)cyclohexane-1-carboxylic acid has been identified as a metabolite in anaerobic naphthalene degradation by the sulfate-reducing culture N47. This study identified and characterised two acyl-CoA dehydrogenases (ThnO/ThnT) and an intramolecular CoA-transferase (ThnP) encoded within the substrate-induced thn operon, which contains genes for anaerobic degradation of naphthalene. ThnP is a CoA transferase belonging to the family I (Cat 1 subgroup) that catalyses the intramolecular CoA transfer from the carboxyl group of 2-(carboxymethyl)cyclohexane-1-carboxyl-CoA to its carboxymethyl moiety, forming 2-carboxycyclohexylacetyl-CoA.

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AL-Amyloidosis is a rare systemic disease that can occur in patients with monoclonal gammopathy or multiple myeloma. As multiple organs may be affected by deposition of amyloid fibrils, the clinical presentation varies considerably, and the diagnostic process may be challenging.We report on a 59-year-old female who suffered from gastroesophageal reflux symptoms, nausea, epigastric pain, and meteorism over several years.

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Undifferentiated embryonal sarcoma of the liver is a rare mesenchymal malignancy that predominantly occurs in children. The relationship between this tumor entity and germline pathogenic variants (PVs) remains undefined. Here, we present the clinical case of a male patient diagnosed with undifferentiated embryonal sarcoma of the liver.

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Article Synopsis
  • Ultrasmall silver nanoparticles (2 nm) were created using sodium borohydride and stabilized with the ligand glutathione, leading to both silver nanoparticles and fluorescing silver nanoclusters.
  • Over time, the nanoclusters degrade while glutathione is released from the particles, contributing to the formation of silver sulfide and resulting in major changes to the particle composition.
  • Analyses showed that these transformations, which significantly influence the nanomaterials' toxicity and properties, are not detectable by common imaging techniques, indicating that fresh nanoparticles are more toxic than aged ones due to the presence of silver clusters.
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Inorganic polyphosphate, a linear polymer of orthophosphate residues linked by phosphoanhydride bonds, occurs in all three domains of life and plays a diverse and prominent role in metabolism and cellular regulation. While the polyphosphate metabolism and its physiological significance have been well studied in bacteria and eukaryotes including human, there are only few studies in archaea available so far. In Crenarchaeota including members of , the presence of polyphosphate and degradation via exopolyphosphatase has been reported and there is some evidence for a functional role in metal ion chelation, biofilm formation, adhesion and motility, however, the nature of the crenarchaeal polyphosphate kinase is still unknown.

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Ultrasmall nanoparticles (diameter 2 nm) of silver, platinum, and bimetallic nanoparticles (molar ratio of Ag:Pt 0:100; 20:80; 50:50; 70:30; 100:0), stabilized by the thiolated ligand glutathione, were prepared and characterized by transmission electron microscopy, differential centrifugal sedimentation, X-ray photoelectron spectroscopy, small-angle X-ray scattering, X-ray powder diffraction, and NMR spectroscopy in aqueous dispersion. Gold nanoparticles of the same size were prepared as control. The particles were fluorescently labeled by conjugation of the dye AlexaFluor-647 via copper-catalyzed azide-alkyne cycloaddition after converting amine groups of glutathione into azide groups.

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People with rare lysosomal storage diseases face challenges in their care that arise from disease complexity and heterogeneity, compounded by many healthcare professionals being unfamiliar with these diseases. These challenges can result in long diagnostic journeys and inadequate care. Over 30 years ago, the Rare Disease Registries for Gaucher, Fabry, Mucopolysaccharidosis type I and Pompe diseases were established to address knowledge gaps in disease natural history, clinical manifestations of disease and treatment outcomes.

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Ultrasmall nanoparticles have a diameter between 1 and 3 nm at the border between nanoparticles and large molecules. Usually, their core consists of a metal, and the shell of a capping ligand with sulfur or phosphorus as binding atoms. While the core structure can be probed by electron microscopy, electron and powder diffraction, and single-crystal structure analysis for atom-sharp clusters, it is more difficult to analyze the ligand shell.

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Background: Infections with Herpes simplex virus (HSV)-1 or -2 usually present as mild chronic recurrent disease, however in rare cases can result in life-threatening conditions with a large spectrum of pathology. Monoclonal antibody therapy has great potential especially to treat infections with virus resistant to standard therapies. HDIT101, a humanized IgG targeting HSV-1/2 gB was previously investigated in phase 2 clinical trials.

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Borna disease virus 1 (BoDV-1) was just recently shown to cause predominantly fatal encephalitis in humans. Despite its rarity, bornavirus encephalitis (BVE) can be considered a model disease for encephalitic infections caused by neurotropic viruses and understanding its pathomechanism is of utmost relevance. Aim of this study was to compare the extent and distribution pattern of cerebral inflammation with the clinical course of disease, and individual therapeutic procedures.

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Ultrasmall gold nanoparticles were functionalized with peptides of two to seven amino acids that contained one cysteine molecule as anchor via a thiol-gold bond and a number of alanine residues as nonbinding amino acid. The cysteine was located either in the center of the molecule or at the end (C-terminus). For comparison, gold nanoparticles were also functionalized with cysteine alone.

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Introduction: The reconstruction of frontobasal defects following oncologic resections of paranasal and anterior skull base (ASB) malignancies remains challenging. Ineffective reconstruction could lead to cerebrospinal fluid leak, meningitis, and tension pneumocephalus.

Research Question: Aim of this investigation was to analyse postoperative complication rates with or without bone graft for anterior skull base reconstruction.

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Background And Aims: Endoscopic resection is accepted as standard treatment for intramucosal esophageal adenocarcinoma (EAC) that is well or moderately differentiated. Poor differentiation (PD) is judged as a risk factor for lymph node metastasis (LNM), and surgery is recommended. However, the evidence for this recommendation is weak.

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Background: Inflammatory myofibroblastic tumor (IMTs) are rare mesenchymal neoplasms with slow growth. Resection is considered as therapeutic standard, with chemotherapy being insufficiently effective in advanced disease. ALK translocations are present in 50% of cases, ROS1 fusions (YWHAE::ROS1, TFG::ROS1) are extremely rare.

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Introduction: Postoperative cognitive dysfunction (POCD) occurs in up to 26% of patients older than 60 years 1 week after non-cardiac surgery. Intraoperative beach chair positioning (BCP) is advantageous for some types of shoulder surgery. However, this kind of positioning leads to a downward bound redistribution of blood volume, with possible hypoperfusion of the brain.

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Article Synopsis
  • Researchers created ultrasmall silver-platinum nanoparticles (Ag:Pt ratio of 50:50) and compared them to pure silver, platinum, and gold nanoparticles, all measuring 2 nm in diameter, stabilized with a glutathione (GSH) layer.* -
  • Various characterization techniques (HRTEM, ED, XRD, SAXS, DCS, UV spectroscopy, and NMR) established the size and composition of the nanoparticles, revealing around 200 GSH ligands per particle and different binding positions on gold nanoparticle surfaces.* -
  • Analysis showed that the alloyed silver-platinum nanoparticles were mostly amorphous, unlike the crystalline nature of pure platinum and gold, and indicated partial oxidation in silver
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Background: Carbon monoxide (CO) poisoning is an important cause of morbidity and mortality worldwide. Symptoms are mostly aspecific, making it hard to identify, and its diagnosis is usually made through blood gas analysis. However, the bulkiness of gas analyzers prevents them from being used at the scene of the incident, thereby leading to the unnecessary transport and admission of many patients.

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SARS-CoV-2 may directly and indirectly damage lung tissue and other host organs, but there are few system-wide, untargeted studies of these effects on the human body. Here, we developed a parallelized mass spectrometry (MS) proteomics workflow enabling the rapid, quantitative analysis of hundreds of virus-infected FFPE tissues. The first layer of response to SARS-CoV-2 in all tissues was dominated by circulating inflammatory molecules.

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Background: Lynch syndrome (LS) is not considered part of childhood cancer predisposition syndromes.

Case Presentation: Analysis of a pediatric osteosarcoma (OS) displayed hypermutation (16.8), alternative lengthening of telomeres (ALT), loss of PMS2 expression in tumor tissue (retained in non-neoplastic cells), PMS2 loss of heterozygosity (LOH), and high-degree of microsatellite instability (MSI) tested by PCR.

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Psoriasis is an immune-mediated inflammatory skin disease driven by interleukin-17A (IL-17A) and associated with cardiovascular dysfunction. We used a severe psoriasis mouse model of keratinocyte IL-17A overexpression (K14-IL-17A , IL-17A control mice) to investigate the activity of neutrophils and a potential cellular interconnection between skin and vasculature. Levels of dermal reactive oxygen species (ROS) and their release by neutrophils were measured by lucigenin-/luminol-based assays, respectively.

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