17,748 results match your criteria: "" Ruhr-University[Affiliation]"

Chemotherapy is one of the most widely used anticancer treatments worldwide. However, despite its clinical effectiveness, most chemotherapeutic agents are associated with severe side effects. To address this limitation, there is an urgent need for the development of novel anticancer agents.

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When using navigation devices the "cognitive map" created in the user's mind is much more fragmented, incomplete and inaccurate, compared to the mental model of space created when reading a conventional printed map. As users become more dependent on digital devices that reduce orientation skills, there is an urgent need to develop more efficient navigation systems that promote orientation skills. This paper proposes to consider brain processes for creating more efficient maps that use a network of optimally located cardinal lines and landmarks organized to support and stabilize the neurocognitive structures in the brain that promote spatial orientation.

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Aim: During the COVID-19 pandemic, social restrictions significantly impacted post-graduate training in pediatric surgery. This paper describes the implementation and continuation of a German-language, online training program for pediatric surgery residents, named "KiWI" (Kinderchirurgische Weiterbildung im Internet), which was established during the period of social distancing.

Method: "KiWI" was designed as a monthly, post-graduate online seminar course that combined practical relevance with theoretical knowledge.

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The vulva is a periorificial skin area and as such represents a transitional zone with unique functional and physiological characteristics. Knowledge of its anatomy is limited among both the general population and healthcare professionals, and unrealistic expectations of normal proportions are common. Ignorance of anatomical variations can cause unnecessary anxiety.

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Anticipating intramolecular excited-state proton-coupled electron transfer (PCET) process within dinuclear Ir-photocatalytic system via the covalent linkage is seminal, yet challenging. Indeed, the development of various dinuclear complexes is also promising for studying integral photophysics and facilitating applications in catalysis or biology. Herein, this study reports dinuclear [Ir(bis{imidazo-phenanthrolin-2-yl}-hydroquinone)(ppy)] (1) complex by leveraging both ligand-centered redox property and intramolecular H-bonding for exploring dual excited-state proton-transfer assisted PCET process.

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Objective: Splenectomy is regularly performed in total and distal pancreatectomy due to technical reasons, lymph node dissection and radicality of the operation. However, the spleen serves as an important organ for competent immune function, and its removal is associated with an increased incidence of cancer and a worse outcome in some cancer entities (Haematologica 99:392-398, 2014; Dis Colon Rectum 51:213-217, 2008; Dis Esophagus 21:334-339, 2008). The impact of splenectomy in pancreatic cancer is not fully resolved (J Am Coll Surg 188:516-521, 1999; J Surg Oncol 119:784-793, 2019).

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A unique collaboration of multi-disciplinary experts from the European Association of Dermato-Oncology (EADO), the European Dermatology Forum (EDF), and the European Organization of Research and Treatment of Cancer (EORTC) was formed to make recommendations on cutaneous melanoma diagnosis and treatment, based on systematic literature reviews and the experts' experience. Cutaneous melanomas are excised with one to two-centimeter safety margins. For a correct stage classification and treatment decision, a sentinel lymph node biopsy shall be offered in patients with tumor thickness ≥ 1.

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Built-in selection or confounder bias? Dynamic Landmarking in matched propensity score analyses.

BMC Med Res Methodol

December 2024

German Diabetes Center, Leibniz Center for Diabetes Research, Institute for Biometrics and Epidemiology, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany.

Background: Propensity score matching has become a popular method for estimating causal treatment effects in non-randomized studies. However, for time-to-event outcomes, the estimation of hazard ratios based on propensity scores can be challenging if omitted or unobserved covariates are present. Not accounting for such covariates could lead to treatment estimates, differing from the estimate of interest.

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Unconscious will as a neurobehavioral mechanism against adversity.

Neurosci Biobehav Rev

December 2024

Department of Biopsychology, Faculty of Psychology, Ruhr University Bochum,  Universitätsstraße 150, Bochum 44801, Germany. Electronic address:

Incentive salience theory both explains the directional component of motivation (in terms of cue attraction or "wanting") and its energetic component, as a function of the strength of cue attraction. This theory characterizes cue- and reward-triggered approach behavior. But it does not tell us how behavior can show enhanced vigor under reward uncertainty, when cues are inconsistent or resources hidden.

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Objective: In this multicentric study, we were interested in the vision-related quality of life and its association with visual impairment in neuromyelitis optica spectrum disorders (NMOSD) and myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD) in comparison to multiple sclerosis (MS) and healthy controls.

Methods: We analysed extracted data from the German NEMOS registry including National Eye Institute Visual Function Questionnaire (NEI-VFQ) scores, high and low contrast visual acuity (HCVA, LCVA), visually evoked potentials (VEP) and the scores for the expanded disability status scale (EDSS) and other neurological tests which assessed their disease-related impairment. The mean follow-up time of our patients was 1.

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Background: Immune checkpoint inhibitors (ICIs) are an important therapeutic pillar in metastatic urothelial carcinoma (mUC). The occurrence of immune-related adverse events (irAEs) appears to be associated with improved outcomes in observational studies. However, these associations are likely affected by immortal time bias and do not represent causal effects.

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Risk analyses for perioperative morbidities after aseptic knee revision arthroplasty.

Arch Orthop Trauma Surg

December 2024

Department of General Orthopaedics, Auguste-Viktoria-Clinic Bad Oeynhausen, University Hospital of RUB-Bochum, Am Kokturkanal, 32545, Bad Oeynhausen, Germany.

Introduction: Total lower limb arthroplasties are standard orthopedic surgeries that are steadily increasing in modern civilization. In proportion, the number of revision arthroplasties and the corresponding financial burden for healthcare systems will increase. The present clinical investigation analyzed morbidities after aseptic revision knee arthroplasty.

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Background: The complex interactions of the tumor micromilieu may be reflected by diffusion-weighted imaging (DWI) derived from the magnetic resonance imaging (MRI). The present study investigated the association between apparent diffusion coefficient (ADC) values and histopathologic features in uterine cervical cancer.

Methods: In this retrospective study, prebiopsy MRI was used to analyze histogram ADC-parameters.

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Purpose: Lack of a control group(s) and selection bias were the main criticisms of previous studies investigating the prevalence of post-coronavirus disease 2019 (COVID-19) syndrome (PCS). There are insufficient data regarding paediatric PCS, particularly in the SARS-CoV-2 Omicron era. As such, our study investigated PCS-associated symptoms in a representative control-matched cohort.

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Background: Spinal cord injury results in permanent neurological impairment and disability due to the absence of spontaneous regeneration. NG101, a recombinant human antibody, neutralises the neurite growth-inhibiting protein Nogo-A, promoting neural repair and motor recovery in animal models of spinal cord injury. We aimed to evaluate the efficacy of intrathecal NG101 on recovery in patients with acute cervical traumatic spinal cord injury.

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Correlation Between Progression-Free and Overall Survival in Patients with Hodgkin Lymphoma: A Comprehensive Analysis of Individual Patient Data from Randomized GHSG Trials.

Ann Oncol

December 2024

University of Cologne, Faculty of Medicine and University Hospital of Cologne, Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD) and German Hodgkin Study Group (GHSG), Cologne, Germany; Department of Hematology and Stem Cell Transplantation, West German Cancer Center and German Cancer Consortium (DKTK partner site Essen), University Hospital Essen, University of Duisburg-Essen, Essen, Germany. Electronic address:

Background: We aimed to evaluate the correlation of progression-free (PFS) and overall survival (OS) after first-line treatment of classical Hodgkin lymphoma (HL) and the potential of PFS to serve as a surrogate parameter for OS.

Patients And Methods: We analyzed individual patient data obtained during and after treatment with polychemotherapy within nine randomized phase III trials (GHSG HD7-HD15) between 01/93 - 08/18. Effects of 16 experimental treatments on PFS and OS on trial level were evaluated by estimation of the treatment effects with Cox proportional hazards (PH) regression and a linear weighted least squares regression.

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For individuals with motor complete spinal cord injury (SCI), previous works have shown that spared motor neurons below the injury level can still be voluntarily controlled. In this study, we investigated the behavior of these neurons after SCI by analyzing neural and spatial properties of individual motor units using high-density surface electromyography (HDsEMG) and ultrasound imaging. The dataset for this study is based on motor unit data from our previous work (Oliveira et al.

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Negative memory bias predicts change in psychiatric problems in a naturalistic psychiatric patient sample.

J Psychiatr Res

January 2025

Radboud University Medical Center, Department of Psychiatry, Reinier Postlaan 10, P.O. Box 9101, 6500 HB, Nijmegen, the Netherlands; Donders Institute for Brain, Cognition, and Behaviour, Radboud University Medical Centre, Thomas van Aquinostraat 4, 6525 GD Nijmegen, the Netherlands; Pro Persona Mental Health Care, Depression Expertise Center, Nijmeegsebaan 61, 6525 DX, Nijmegen, the Netherlands.

Self-referential negative memory bias contributes to depression and other psychiatric disorders. Co-morbidity between these disorders is highly common in clinical practice, but transdiagnostic predictors like negative memory bias are not well understood yet. Therefore, the present study aimed to investigate the predictive value of negative memory bias for long-term change in broad psychiatric problems.

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This guideline was developed in close collaboration with multidisciplinary experts from the European Association of Dermato-Oncology (EADO), the European Dermatology Forum (EDF) and the European Organization for Research and Treatment of Cancer (EORTC). Recommendations for the diagnosis and treatment of melanoma were developed on the basis of systematic literature research and consensus conferences. Cutaneous melanoma (CM) is the most dangerous form of skin tumor and accounts for 90 % of skin cancer mortality.

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European S2k guidelines for hidradenitis suppurativa/acne inversa part 2: Treatment.

J Eur Acad Dermatol Venereol

December 2024

European Hidradenitis Suppurativa Foundation e.V., Dessau, Germany.

Introduction: This second part of the S2k guidelines is an update of the 2015 S1 European guidelines.

Objective: These guidelines aim to provide an accepted decision aid for the selection, implementation and assessment of appropriate and sufficient therapy for patients with hidradenitis suppurativa/acne inversa (HS).

Methods: The chapters have been selected after a Delphi procedure among the experts/authors.

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Background: Despite extensive discourse on the utilisation of the temporal muscle for facial reanimation, anatomical description regarding the innervation of its motor nerve branches is incomplete and varied. This systematic review aimed to consolidate the existing evidence concerning the distribution and variation in the pattern of temporalis innervation.

Methods: A PRISMA-compliant systematic literature search was conducted in November 2023 and included studies offering anatomical insights into the distribution and variation of temporalis innervation patterns.

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Background: Despite the encouraging findings of temporalis muscle-based facial reanimation surgery without the need for nerve grafting, there is a need for comprehensive evaluation of the impact of temporalis-based facial reanimation surgery on key outcome measures.

Methods: Comprehensive search in Medline and Embase databases were carried out up to 25 February 2023. The articles that examined facial reanimation surgery using the temporalis muscle were included in this study.

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Does eccentric strength training add sarcomeres in series and subtract sarcomeres in parallel?

J Sport Health Sci

December 2024

Human Movement Science, Faculty of Sport Science, Ruhr University Bochum, Bochum 44801, Germany; School of Human Movement and Nutrition Sciences, The University of Queensland, Brisbane, QLD 4072, Australia.

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Plasticizer exposure in Germany from 1988 to 2022: Human biomonitoring data of 20 plasticizers from the German Environmental Specimen Bank.

Environ Int

December 2024

Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Institute of the Ruhr-University-Bochum (IPA), Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany. Electronic address:

The German Environmental Specimen Bank (ESB) annually archives 24-h urine samples since the early 1980s. In this study, we analyzed 420 of these samples from the years 2014 to 2022 for metabolites of 18 phthalates and two substitutes. We merged the new data with the data from previous measurement campaigns to a combined dataset of 1825 samples covering a 35-year period from 1988 to 2022 to investigate time trends, calculate daily intakes and perform an anti-androgenic mixture risk assessment.

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