1,542,526 results match your criteria: "Germany; Technische Universität Berlin[Affiliation]"

Control of Interlocking Mode in Pd4L8 Cage Catenanes.

Angew Chem Int Ed Engl

January 2025

TU Dortmund University, Faculty for Chemistry and Chemical Biology, Otto-Hahn-Str. 6, 44227, Dortmund, GERMANY.

Precise control over the catenation process in interlocked supramolecular systems remains a significant challenge. Here, we report a system in which a lantern-shaped Pd2L4 cage can dimerize to form two distinct Pd4L8 catenanes with different interlocking degree: a previously described quadruply interlocked double cage motif of D4 symmetry and an unprecedented triply interlocked structure of C2h symmetry. While the former structure features a linear arrangement of four Pd(II) centers, separated by three mechanically linked pockets, the new motif has a staggered shape.

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Background: Conversational agents (CAs) are finding increasing application in health and social care, not least due to their growing use in the home. Recent developments in artificial intelligence, machine learning, and natural language processing have enabled a variety of new uses for CAs. One type of CA that has received increasing attention recently is smart speakers.

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Background: Acquired neurological diseases entail significant changes and influence the relationship between a patient and their significant other. In the context of long-term rehabilitation, those affected collaborate with health care professionals who are expected to have a positive impact on the lives of the affected individuals.

Objective: This study aims to examine the changes in the relationship between the patient and their loved ones due to acquired neurological disorders and the influence of health care professionals on this relationship.

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Development of the First-in-Class FEM1B-Recruiting Histone Deacetylase Degraders.

J Med Chem

January 2025

Department of Pharmaceutical and Cell Biological Chemistry, Pharmaceutical Institute, University of Bonn institution, An der Immenburg 4, Bonn 53121, Germany.

Targeted protein degradation (TPD) represents a promising alternative to conventional occupancy-driven protein inhibition. Despite the existence of more than 600 E3 ligases in the human proteome, so far only a few have been utilized for TPD of histone deacetylases (HDACs), which represent important epigenetic anticancer drug targets. In this study, we disclose the first-in-class Fem-1 homologue B (FEM1B)-recruiting HDAC degraders.

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Purpose: To compare the assessment of clinically relevant retinal and choroidal lesions as well as optic nerve pathologies using a novel three-wavelength ultra-widefield (UWF) scanning laser ophthalmoscope with established retinal imaging techniques for ophthalmoscopic imaging.

Methods: Eighty eyes with a variety of retinal and choroidal lesions were assessed on the same time point using Topcon color fundus photography (CFP) montage, Optos red/green (RG), Heidelberg SPECTRALIS MultiColor 55-color montage (MCI), and novel Optos red/green/blue (RGB). Paired images of the optic nerve, retinal, or choroidal lesions were initially diagnosed based on CFP imaging.

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Purpose: To compare a novel high-resolution optical coherence tomography (OCT) with improved axial resolution (High-Res OCT) with conventional spectral-domain OCT (SD-OCT) with regard to their capacity to characterize the disorganization of the retinal inner layers (DRIL) in diabetic maculopathy.

Methods: Diabetic patients underwent multimodal retinal imaging (SD-OCT, High-Res OCT, and color fundus photography). Best-corrected visual acuity and diabetes characteristics were recorded.

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Importance: Sexual violence against children is a global concern, yet worldwide figures of its prevalence are scant.

Objective: To estimate the global prevalence of sexual violence against children using national-level population-based studies.

Data Sources: We searched the PubMed, Embase, CINAHL, Web of Science, PsycINFO, ERIC, and APA PsycArticles databases from their respective inceptions to March 2022.

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Human performance in psychophysical detection and discrimination tasks is limited by inner noise. It is unclear to what extent this inner noise arises from early noise (e.g.

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Background: Several health care networks have fully adopted second-generation supraglottic airway (SGA) i-gel. Real-world evidence of enhanced patient safety after such practice change is lacking. We hypothesized that the implementation of i-gel compared to the previous LMA®-Unique™ would be associated with a lower risk of airway-related safety events.

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Background And Objectives: Safety and efficacy of IV onasemnogene abeparvovec has been demonstrated for patients with spinal muscular atrophy (SMA) weighing <8.5 kg. SMART was the first clinical trial to evaluate onasemnogene abeparvovec for participants weighing 8.

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CryoCrane: an open-source GUI for analyzing cryo-EM screening data sets.

Acta Crystallogr F Struct Biol Commun

February 2025

Institute for Biochemistry and Biology, University of Potsdam, Am Neuen Palais 10, 14469 Potsdam, Germany.

Screening of cryo-EM samples is essential for the generation of high-resolution cryo-EM structures. Often, it is cumbersome to correlate the appearance of specific grid squares and micrograph quality. Here, CryoCrane (Correlate atlas and exposures), a visualization tool for cryo-EM screening data, is presented.

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Interactions between contaminants and the trophic ecology of two seabirds in a coastal lagoon of the Gulf of California.

Ecotoxicology

January 2025

Unidad Académica Mazatlán, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Mazatlán, Sinaloa, México.

Monitoring the dynamics of contaminants in ecosystems helps understand their potential effects. Seabirds have been used as biomonitors of marine ecosystems for this purpose. However, exposure and vulnerability to pollutants are understudied in tropical species, and the relationships between various pollutants and the trophic ecology of seabirds are poorly understood.

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Purpose: Obesity and type 2 diabetes (T2DM) are major risk factors for hepatic steatosis. Diet or bariatric surgery can reduce liver volume, fat content, and inflammation. However, little is known about their effects on liver function, as evaluated here using the LiMAx test.

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Food for Thoughts for Prospective Biomanufacturing.

Microb Biotechnol

January 2025

Institute of Biochemical Engineering/Institut für Bioverfahrenstechnik, University of Stuttgart, Stuttgart, Germany.

While rising greenhouse gases cause climate change, global economies ask for resilient solutions for the business of the future. Biomanufacturing may well serve as a pillar of a circular economy with minimised environmental impact. Therefore, innovations of the lab need to successfully bridge the imminent 'death-valley of innovation' for making commercial production happen.

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In all fields anatomical dissection has improved results - en bloc resection of bladder tumors (ERBT) will make no exception.

World J Urol

January 2025

Department of Urology, Spital Thurgau AG, Kantonsspital Frauenfeld, Pfaffenholzstrasse 4, Frauenfeld, CH, 8501, Switzerland.

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Enhancing safety in CT-guided lung biopsies: correlation of MinIP imaging with pneumothorax risk prediction.

Insights Imaging

January 2025

Department of Diagnostic, Interventional and Paediatric Radiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.

Objectives: This study aimed to evaluate whether minimum-intensity projection (MinIP) images could predict complications in CT-guided lung biopsies.

Methods: We retrospectively analyzed 72 procedures from January 2019 to December 2023, categorizing patients by pneumothorax and the severity of hemorrhage (grade 2 or higher). Radiodensity measurements were performed using lung window (LW) and MinIP (10-mm slab) images.

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Heart failure is a prevalent global health issue. Heart failure with preserved ejection fraction (HFpEF), which already represents half of all heart cases worldwide, is projected to further increase, driven by aging populations and rising cardiovascular risk factors. Effective therapies for HFpEF remain limited, particularly due to its pathophysiological heterogeneity and incomplete understanding of underlying pathomechanisms and implications.

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Two features of macrophages make them attractive for targeted transport of drugs: they efficiently take up a broad spectrum of nanoparticles (NPs) and, by sensing cytokine gradients, they are attracted to the sites of infection and inflammation. To expand the potential of macrophages as drug carriers, we investigated whether macrophages could be simultaneously coloaded with different types of nanoparticles, thus equipping individual cells with different functionalities. We used superparamagnetic iron oxide NPs (SPIONs), which produce apoptosis-inducing hyperthermia when exposed to an alternating magnetic field (AMF), and co-loaded them on macrophages together with drug-containing NPs (inorganic-organic nanoparticles (IOH-NPs) or mesoporous silica NPs (MSNs)).

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Objectives: To investigate the performance of a deep learning (DL) model for segmenting cone-beam computed tomography (CBCT) scans taken before and after mandibular horizontal guided bone regeneration (GBR) to evaluate hard tissue changes.

Materials And Methods: The proposed SegResNet-based DL model was trained on 70 CBCT scans. It was tested on 10 pairs of pre- and post-operative CBCT scans of patients who underwent mandibular horizontal GBR.

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Background: This retrospective study aims to evaluate the impact of a content-based image retrieval (CBIR) application on diagnostic accuracy and confidence in interstitial lung disease (ILD) assessment using high-resolution computed tomography CT (HRCT).

Methods: Twenty-eight patients with verified pattern-based ILD diagnoses were split into two equal datasets (1 and 2). The images were assessed by two radiology residents (3rd and 5th year) and one expert radiologist in four sessions.

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Background: Diagnosis of Giant Cell Arteritis (GCA) and Polymyalgia rheumatica (PMR) may be challenging as many patients present with non-specific symptoms. Superficial cranial arteries are predilection sites of inflammatory affection. Ultrasound is typically the diagnostic tool of first choice supplementary to clinical and laboratory examination.

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Objectives: To survey physicians' views on the risks and benefits of computed tomography (CT) in the management of septic patients and indications for and contraindications to contrast media use in searching for septic foci.

Methods: A web-based questionnaire was administered to physicians at a large European university medical center in January 2022. A total of 371 questionnaires met the inclusion criteria and were analyzed with physicians' work experience, workplace, and medical specialty as independent variables.

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Exploring Tetraselmis chui microbiomes-functional metagenomics for novel catalases and superoxide dismutases.

Appl Microbiol Biotechnol

January 2025

Department of Microbiology and Biotechnology, Institute of Plant Science and Microbiology, University of Hamburg, Ohnhorststr.18, 22609, Hamburg, Germany.

The focus on microalgae for applications in several fields, e.g. resources for biofuel, the food industry, cosmetics, nutraceuticals, biotechnology, and healthcare, has gained increasing attention over the last decades.

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Aim: To perform a systematic review to investigate if the use of audio distraction reduces signs of stress and anxiety in paediatric patients undergoing dental treatment.

Materials And Methods: Search was made in electronic databases (MEDLINE, Scopus, Embase, Web of Science, Scielo, BVS, Springer Link, Science Direct, Cochrane Library, and grey literature) until March 11th, 2024. The eligibility criteria were: paediatric patients under dental treatment; use of audio as a distraction method; comparison between groups with and without use of audio distraction; Clinical trials.

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