1,544,490 results match your criteria: "Germany; Leibniz Institute for Neurobiology[Affiliation]"

Intrachromosomal amplification of chromosome 21 (iAMP21) B-cell precursor acute lymphoblastic leukemia (BCP-ALL) in children is a high-risk subtype for which targeted drugs are lacking. In this study, we determined the frequency of secondary lesions in 28 iAMP21 BCP-ALL patient samples and investigated cellular sensitivity for candidate-targeted drugs. iAMP21 was enriched in aberrations (10.

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In chronic lymphocytic leukemia, the reliability of next-generation sequencing (NGS) to detect variants ≤10% allelic frequency (low-VAF) is debated. We tested the ability to detect 23 such variants in 41 different laboratories using their NGS method of choice. The sensitivity was 85.

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SOCS1 deficiency-crossroads of autoimmunity and autoinflammation-two case reports.

Front Pediatr

January 2025

Department of Pediatric Oncology, Hematology and Clinical Immunology, Medical Faculty, Center of Child and Adolescent Health, Heinrich-Heine-University and University Hospital, Duesseldorf, Germany.

Suppressors of cytokine signaling (SOCS) proteins play a critical role in regulating immune signaling pathways. Deficiency of SOCS1 leads to various autoimmune pathologies. We present two unrelated patients with distinct clinical manifestations.

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The chemical reduction of a pyracylene-hexa--hexabenzocoronene-(HBC)-fused nanographene TPP was investigated with K and Rb metals to reveal its multi-electron acceptor abilities. The reaction of TPP with the above alkali metals, monitored by UV-vis-NIR and H NMR spectroscopy, evidenced the stepwise reduction process. The use of different solvents and secondary ligands enabled isolation of single crystals of three different reduced states of TPP with 1, 2, and 3 electrons added to its π-system.

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Background: Neurocysticercosis (NCC) and Acquired Human Immunodeficiency Syndrome (AIDS) are both highly prevalent in Africa. Clinical presentation of NCC ranges from asymptomatic to manifestations, including epileptic seizures, severe progressive headache, and focal neurological deficits. It is influenced by the number, size, location, and stage of the cysts, as well as the parasite's potential to cause inflammation and the immunological response of the host.

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The societal shift toward greater gender equality has led to increased variability in people's gender role attitudes, or the belief that men and women should occupy distinct family roles (i.e. men as breadwinners and women as homemakers).

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In abdominal X-ray examinations, radiosensitive organs such as the gonads within or near the imaging region are at risk of radiation exposure. Minimizing the dose to these organs is crucial to reducing unnecessary radiation. This study utilized optically stimulated luminescence dosimeters (OSLDs) to measure the radiation dose to the male gonads at varying kilovoltage peak (kVp) settings while keeping the milliampere-seconds (mAs) constant across different radiographic projections.

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Advancements in bioengineered and autologous skin grafting techniques for skin reconstruction: a comprehensive review.

Front Bioeng Biotechnol

January 2025

Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Department of Oral and Maxillofacial Surgery, Berlin, Germany.

The reconstruction of complex skin defects challenges clinical practice, with autologous skin grafts (ASGs) as the traditional choice due to their high graft take rate and patient compatibility. However, ASGs have limitations such as donor site morbidity, limited tissue availability, and the necessity for multiple surgeries in severe cases. Bioengineered skin grafts (BSGs) aim to address these drawbacks through advanced tissue engineering and biomaterial science.

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Nuclear receptors regulate hematopoietic stem cells (HSCs) and peripheral immune cells in mice and humans. The nuclear orphan receptor NR2F6 (EAR-2) has been shown to control murine hematopoiesis. Still, detailed analysis of the distinct stem cell, myeloid, and lymphoid progenitors in the bone marrow in a genetic loss of function model remains pending.

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In the face of growing transplant waitlists and aging donors, sound pre-transplant evaluation of organ offers is paramount. However, many transplant centres lack clear criteria on organ acceptance. Often, previous scores for donor characterisation have not been validated for the Eurotransplant population and are not established to support graft acceptance decisions.

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From Pregnancy to Postpartum: The Dynamic Reorganization of the Maternal Brain.

Neurosci Insights

January 2025

Department of Psychiatry, Psychotherapy and Psychosomatics, Faculty of Medicine, RWTH Aachen, Aachen, Germany.

The postpartum period is marked by radical changes in the maternal brain. Seeking to explore the mechanisms that underlie these changes, this article focuses on the relevant hormonal, inflammatory, and behavioral factors. Longitudinal imaging studies have shed valuable light on both short- and long-term alterations in postpartum brain structure and connectivity, particularly in the regions that play key roles in emotion regulation and stress response.

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Grammar-constrained decoding for structured information extraction with fine-tuned generative models applied to clinical trial abstracts.

Front Artif Intell

January 2025

Center for Cognitive Interaction Technology (CITEC), Technical Faculty, Bielefeld University, Bielefeld, Germany.

Background: In the field of structured information extraction, there are typically semantic and syntactic constraints on the output of information extraction (IE) systems. These constraints, however, can typically not be guaranteed using standard (fine-tuned) encoder-decoder architectures. This has led to the development of constrained decoding approaches which allow, e.

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In many languages, it is common to use masculine-only forms when all genders are meant or gender is irrelevant to the actual statement. This practice is criticized for making women and members of other genders, their achievements and interests, less visible. Gender-fair language is intended to represent all genders equally.

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"If you prick us, do we not bleed?" Antisemitism and psychosocial health among Jews in Germany.

Front Psychol

January 2025

Department of Developmental Psychology, Institute for Psychology, Osnabrück University, Osnabrück, Germany.

Introduction: Amid escalating global antisemitism, particularly following the Hamas attack on Israel on October 7, 2023, this study addresses critical gaps in understanding the psychosocial impact of antisemitism on Jewish communities worldwide.

Methods: Focusing on the Jewish community in Germany, we conducted a cross-sectional survey of 420 Jewish individuals (mean age = 40.71 years, SD = 15.

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Emotional mimicry-the imitation of others' emotions-is an empathic response that helps to navigate social interactions. Mimicry is absent when participants' task does not involve engaging with the expressers' emotions. This may be because task-irrelevant faces (i.

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Although feedback is of high importance for the professional development of student teachers, the impact of (inadequate) feedback on their self-regulated learning is still unclear. In two studies with mathematics student teachers, we investigated how discrepancies between performance and feedback affected two important aspects of self-regulated learning-self-efficacy and self-assessment accuracy regarding mathematical content knowledge. In the first study,  = 154 student teachers studying mathematics completed a knowledge test on the Pythagorean theorem and received performance feedback that was either correct or manipulated to be more positive or more negative than actual performance.

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Female athletes explicitly gesture in emotional situations.

Front Psychol

January 2025

Department of Motor Behavior in Sports, Institute of Health Promotion and Clinical Movement Science, German Sport University Cologne, Cologne, Germany.

Introduction: Both appraisal emotion approaches and self-regulation theory emphasize that appraising an event as conducive or detrimental to one's current goals may trigger an affective response that can be observed nonverbally. Because there may be a female advantage in the inhibition and self-regulation of emotions, we hypothesized that female but not male athletes regulate emotions during sports through explicit nonverbal behaviors.

Methods: All nonverbal hand movement behavior of right-handed female and male tennis athletes was recorded during competitive matches.

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Impact of Organ Donor Pretreatment With Anti-Thymocyte Globulin in a Murine Model of Allogenic Kidney Transplantation.

Transpl Int

January 2025

Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department for General and Visceral Surgery, Berlin, Germany.

Kidney transplantation is the treatment of choice for end-stage organ failure. To improve transplantation outcomes, particularly of "marginal" organs from extended criteria donors (ECD), attempts have been made to therapeutically modulate donor or graft pre-transplantation. Anti-thymocyte globulin (ATG) has a history as lymphocyte-depleting, immunosuppressive drug for treating rejection episodes post transplantation.

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Influences of fluctuating nutrient loadings on nitrate-reducing microorganisms in rivers.

ISME Commun

January 2025

Key Laboratory of Water and Sediment Sciences, Ministry of Education, Department of Environmental Engineering, Peking University, Beijing 100871, China.

Rivers serve important functions for human society and are significantly impacted by anthropogenic nutrient inputs (e.g. organic and sulfur compounds).

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The cyanobacterium causes harmful algal blooms that pose a major threat to human health and ecosystem services, particularly due to the prevalence of the potent hepatotoxin microcystin (MC). With their pronounced EPS layer, colonies also serve as a hub for heterotrophic phycosphere bacteria. Here, we tested the hypothesis that the genotypic plasticity in its ability to produce MC influences the composition and assembly of the phycosphere microbiome.

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Purpose: Malalignment of the lower extremity can affect one, two or all three anatomic planes. We hypothesized an influence between the malalignment of the coronal and axial planes.

Methods: A total of 356 lower extremities of 226 patients were included.

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Transition metal catalysis is crucial for the synthesis of complex molecules, with ligands and bases playing a pivotal role in optimizing cross-coupling reactions. Despite advancements in ligand design and base selection, achieving effective synergy between these components remains challenging. We present here a general approach to nickel-catalyzed photoredox reactions employing -butylamine as a cost-effective bifunctional additive, acting as the base and ligand.

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Bioinformatics and Computationally Supported Redesign of Aspartase for β-Alanine Synthesis by Acrylic Acid Hydroamination.

ACS Catal

January 2025

Chemical Biotechnology, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, 9747 AG Groningen, the Netherlands.

Aspartate ammonia lyases catalyze the reversible amination of fumarate to l-aspartate. Recent studies demonstrate that the thermostable enzyme from sp. YM55-1 (AspB) can be engineered for the enantioselective production of substituted β-amino acids.

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Trauma care prioritizes life-threatening conditions using the ABCDE algorithm based on the principle "treat first what kills first". As for catastrophic hemorrhage, a leading preventable cause of death in trauma, modifications of this algorithm are necessary in specific cases. In cold climates, life-threatening hypothermia poses additional challenges.

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