1,544,838 results match your criteria: "Germany; German Cancer Research Center DKFZ Heidelberg[Affiliation]"

The dynamics of neuronal systems are characterized by hallmark features such as oscillations and synchrony. However, it has remained unclear whether these characteristics are epiphenomena or are exploited for computation. Due to the challenge of selectively interfering with oscillatory network dynamics in neuronal systems, we simulated recurrent networks of damped harmonic oscillators in which oscillatory activity is enforced in each node, a choice well supported by experimental findings.

View Article and Find Full Text PDF

Metabolic activity controls the emergence of coherent flows in microbial suspensions.

Proc Natl Acad Sci U S A

January 2025

Experimental Physics V, Department of Physics, University of Bayreuth, D-95447 Bayreuth, Germany.

Photosynthetic microbes have evolved and successfully adapted to the ever-changing environmental conditions in complex microhabitats throughout almost all ecosystems on Earth. In the absence of light, they can sustain their biological functionalities through aerobic respiration, and even in anoxic conditions through anaerobic metabolic activity. For a suspension of photosynthetic microbes in an anaerobic environment, individual cellular motility is directly controlled by its photosynthetic activity, i.

View Article and Find Full Text PDF

Spreading dynamics of information on online social networks.

Proc Natl Acad Sci U S A

January 2025

Department of Statistics and Data Science, College of Science, Southern University of Science and Technology, Shenzhen 518055, China.

Social media is profoundly changing our society with its unprecedented spreading power. Due to the complexity of human behaviors and the diversity of massive messages, the information-spreading dynamics are complicated, and the reported mechanisms are different and even controversial. Based on data from mainstream social media platforms, including WeChat, Weibo, and Twitter, cumulatively encompassing a total of 7.

View Article and Find Full Text PDF

The rise of antimicrobial resistance represents a significant global health threat, driven by the diminishing efficacy of existing antibiotics, a lack of novel antibacterials entering the market, and an over- or misuse of existing antibiotics, which accelerates the evolution of resistant bacterial strains. This review focuses on innovative therapies by highlighting 19 novel antibacterials in clinical development as of June 2024. These selected compounds are characterized by new chemical scaffolds, novel molecular targets, and/or unique mechanisms of action, which render their potential to break antimicrobial resistance particularly high.

View Article and Find Full Text PDF

In the last thirty years research on relative age effects (RAEs) has exploded in numbers. However, the stability and variability of these effects have hardly been investigated. The three aims of this retrospective study were first to investigate the stability and variability of RAEs over 17 years, second to compare these effects for young female and male athletes, and third to compare these effects between selected and non-selected athletes relative to variability estimates from 17 years prior to assess possible changes in athlete development trends.

View Article and Find Full Text PDF

Purpose: To systematically review qualitative studies on outcomes, needs, experiences, preferences, concerns and health-related quality of life (HRQoL) of people surviving cancer in Europe in the last decade.

Methods: Protocol registered ( https://www.crd.

View Article and Find Full Text PDF

About one out of two diabetic patients develop diabetic neuropathy (DN), of these 20% experience neuropathic pain (NP) leading to individual, social, and health-economic burden. Risk factors for NP are largely unknown; however, premature aging was recently associated with several chronic pain disorders. DNA methylation-based biological age (DNAm) is associated with disease risk, morbidity, and mortality in different clinical settings.

View Article and Find Full Text PDF

Continuous local infiltration analgesia is equal to femoral and sciatic nerve block for total knee arthroplasty.

Arch Orthop Trauma Surg

January 2025

Department of Anaesthesia, Main-Kinzig-Kliniken, Herzbachweg 14, 63571, Gelnhausen, Germany.

Background: Total knee arthroplasty (TKA) is associated with moderate to severe postoperative pain. Pain control is crucial for rapid mobilisation and reduces side effects as well as the length of hospital stay. In this context, a variety of multimodal pain control regimes show good pain relief, including several nerve blocks, iPACK and local infiltration analgesia (LIA).

View Article and Find Full Text PDF

Exhalation of Rn-219 by patients treated with Radium-223.

EJNMMI Phys

January 2025

Department for Radiation Protection and Medical Physics, Hannover Medical School, Carl-Neuberg- Str. 1, 30625, Hannover, Germany.

Background: Treatment with Ra-223 dichloride is approved for the therapy of castration resistant prostate cancer (CRPC) with symptomatic bone metastases and no known visceral metastases in Europe since 2013, and Ra-223 is under discussion for labelling other molecules and nanoparticles. The direct progeny of Ra-223 is Rn-219, also known as actinon, a radioactive noble gas with a half-life of 3.98 s.

View Article and Find Full Text PDF

Determination of the Time-frequency Features for Impulse Components in EEG Signals.

Neuroinformatics

January 2025

Institute of Mathematics, University of Kassel, Heinrich-Plett-Str. 40, Kassel, 34132, Germany.

Accurately identifying the timing and frequency characteristics of impulse components in EEG signals is essential but limited by the Heisenberg uncertainty principle. Inspired by the visual system's ability to identify objects and their locations, we propose a new method that integrates a visual system model with wavelet analysis to calculate both time and frequency features of local impulses in EEG signals. We develop a mathematical model based on invariant pattern recognition by the visual system, combined with wavelet analysis using Krawtchouk functions as the mother wavelet.

View Article and Find Full Text PDF

Background And Objectives: Recently, reduction of transcallosal inhibition by contralateral navigated repetitive transcranial magnetic stimulation (nrTMS) improved neurorehabilitation of glioma patients with new postoperative paresis. This multicentric study examines the effect of postoperative nrTMS in brain tumor patients to treat surgery-related upper extremity paresis.

Methods: This is a secondary analysis of two randomized and three one-arm studies in brain tumor patients with new/progressive postoperative paresis.

View Article and Find Full Text PDF

Purpose: This study aims to analyze microvascular reconstruction in Oral and Maxillofacial Surgery (OMFS) in Europe.

Methods: Based on previous studies, a dynamic online questionnaire was developed and subjected to internal and external evaluation. The questionnaire comprised multiple-choice, rating, and open-ended questions, addressing general and specific aspects and the impacts of the COVID-19 pandemic on microvascular reconstruction in OMFS in Europe.

View Article and Find Full Text PDF

Centriolar cap proteins CP110 and CPAP control slow elongation of microtubule plus ends.

J Cell Biol

March 2025

Cell Biology, Neurobiology and Biophysics, Department of Biology, Faculty of Science, Utrecht University, Utrecht, The Netherlands.

Centrioles are microtubule-based organelles required for the formation of centrosomes and cilia. Centriolar microtubules, unlike their cytosolic counterparts, are stable and grow very slowly, but the underlying mechanisms are poorly understood. Here, we reconstituted in vitro the interplay between the proteins that cap distal centriole ends and control their elongation: CP110, CEP97, and CPAP/SAS-4.

View Article and Find Full Text PDF

Purpose: The aim of the study was to evaluate operative time and postoperative complications of 4 post-training specialized surgeons.

Methods: This was a pilot retrospective chart review to determine the learning curve of a Shouldice primary inguinal hernia repair (Shouldice Repair) of 4 post-training specialized surgeons, at the Shouldice Hospital. The first 300 Shouldice Repairs (early learning block) were compared to their 900-1,000 repairs as the primary operating surgeon (late learning block).

View Article and Find Full Text PDF

Metanephric stromal tumor as a rare differential diagnosis of a renal mass in children - a case report.

Pediatr Radiol

January 2025

Pediatric Radiology, Kinderradiologie, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität Zu Berlin, Augustenburger Platz 1, Berlin, 13353, Germany.

This report presents the case of a benign metanephric stromal tumor that occurred in the kidney of a 5-year-old boy and in which differentiation from a nephroblastoma was successful. Radiological assessment played the decisive role in this case, as the low initial volume, a high apparent diffusion coefficient, and lack of rapid tumor growth were considered atypical for a nephroblastoma. The boy underwent successful kidney-preserving resection without neoadjuvant chemotherapy, and intraoperative contrast-enhanced ultrasound examination helped to accurately define the tumor margins.

View Article and Find Full Text PDF

Structured hernia surgery training program for general practitioners in Rwanda - feasibility and evaluation.

Hernia

January 2025

Department of General and Abdominal Surgery, Clinic for General and Abdominal Surgery, University Hospital Brandenburg an der Havel, Hochstrasse 29, 14770, Brandenburg an der Havel, Germany.

Background: Hernias are among the most common surgical conditions worldwide, with significant prevalence in Africa. However, according to recent WHO statistics, Africa faces a critical shortage of trained surgeons. Structured surgical training programs are also scarce.

View Article and Find Full Text PDF

[Functional disorders of the lower urinary tract in diabetes mellitus].

Urologie

January 2025

Urologische Abteilung, Landesklinikum Korneuburg, Wiener Ring 3-5, 2100, Korneuburg, Österreich.

Type 2 diabetes mellitus is a well-known metabolic disease with increasing prevalence. Diabetic-related complications lead to different types of organ damage, some of which some of which are less well-known. In the lower urinary tract, a complex interplay of neuronal, myogenic, and urothelial dysfunction leads to functional disorders of the lower urinary tract, with disorders of bladder storage and bladder emptying being in the forefront.

View Article and Find Full Text PDF

Purpose: This retrospective analysis evaluates baseline F-flotufolastat positron emission tomography (PET) parameters as prognostic parameters for treatment response and outcome in patients with metastatic castration-resistant prostate cancer (mCRPC) undergoing treatment with [Lu]Lu-PSMA-I&T.

Methods: A total of 188 mCRPC patients with baseline F-flotufolastat PET scans were included. Tumor lesions were semiautomatically delineated, with imaging parameters including volume-based and standardized uptake value (SUV)-based metrics.

View Article and Find Full Text PDF

Parkinson's disease (PD) is a chronic neurodegenerative disease of the elderly. Patients suffer from progressive motor and non-motor symptoms. Further, PD patients often present geriatric features like multimorbidity and polypharmacotherapy.

View Article and Find Full Text PDF

Background: Invasive systems are commonly used for monitoring intracranial pressure (ICP) in traumatic brain injury (TBI) and are considered the gold standard. The availability of invasive ICP monitoring is heterogeneous, and in low- and middle-income settings, these systems are not routinely employed due to high cost or limited accessibility. The aim of this consensus was to develop recommendations to guide monitoring and ICP-driven therapies in TBI using non-invasive ICP (nICP) systems.

View Article and Find Full Text PDF

Conflict at work and incident chronic low back pain: a retrospective cohort of more than 101,000 adults from Germany.

Int Arch Occup Environ Health

January 2025

Department of Physical Medicine and Rehabilitation, Lariboisière- Fernand Widal Hospital, Université Paris Cité, Assistance Publique- Hôpitaux de Paris, Paris, France.

Purpose: Little is known about the relationship between conflict at work and incident chronic low back pain (CLBP). Thus, this retrospective cohort study analyzed the association between conflict at work and the five-year incidence of CLBP in adults living in Germany.

Methods: This study included individuals aged 18-65 years reporting conflict at work for the first time in one of 1,293 general practices in Germany between 2005 and 2022 (index date).

View Article and Find Full Text PDF

Background: The application of international recommendations for paediatric maintenance haemodialysis (HD) could be strengthened by national laws or written recommendations. Our aim was therefore to describe the national rules governing paediatric maintenance HD in European countries.

Methods: A national representative, approved by the president of each paediatric nephrology society, was contacted in all 42 European countries to complete two online questionnaires.

View Article and Find Full Text PDF

A case of cutaneous adnexal neoplasm with unusual squamoid morphology and harboring an in frame ACTB::ZMIZ2 fusion transcript was recently described. Herein, we report a second case of adnexal carcinoma harboring similar morphology and an identical in frame ACTB::ZMIZ2 fusion transcript. This 2.

View Article and Find Full Text PDF

Xylindein is a blue-green pigment produced by the fungi and Its stunning color and optoelectronic properties make xylindein valuable for textiles and as a natural semiconductor material. However, producing xylindein from culture broths remains challenging because of the slow growth of the species and the poor solubility of xylindein in organic solvents. An alternative production route for obtaining pure xylindein is heterologous expression of the xylindein biosynthetic genes.

View Article and Find Full Text PDF