6,504 results match your criteria: "University of Bonn LIFE&BRAIN Center[Affiliation]"

Context-dependent similarity analysis of analogue series for structure-activity relationship transfer based on a concept from natural language processing.

J Cheminform

January 2025

Department of Life Science Informatics and Data Science, B-IT, LIMES Program Unit Chemical Biology and Medicinal Chemistry, University of Bonn, Friedrich-Hirzebruch-Allee 5/6, 53115, Bonn, Germany.

Analogue series (AS) are generated during compound optimization in medicinal chemistry and are the major source of structure-activity relationship (SAR) information. Pairs of active AS consisting of compounds with corresponding substituents and comparable potency progression represent SAR transfer events for the same target or across different targets. We report a new computational approach to systematically search for SAR transfer series that combines an AS alignment algorithm with context-depending similarity assessment based on vector embeddings adapted from natural language processing.

View Article and Find Full Text PDF

Comparison of whole genome sequencing performance from fish swabs and fin clips.

BMC Res Notes

January 2025

Leibniz Institute for the Analysis of Biodiversity Change, Museum Koenig Bonn, Centre for Molecular Biodiversity Research, Bonn, Germany.

Objective: Fin clipping is the standard DNA sampling technique for whole genome sequencing (WGS) of small fish. The collection of fin clips requires anaesthesia or even euthanisation of the individual. Swabbing may be a less invasive, non-lethal alternative to fin-clipping.

View Article and Find Full Text PDF

Dysfunctions in autophagy, a cellular mechanism for breaking down components within lysosomes, often lead to neurodegeneration. The specific mechanisms underlying neuronal vulnerability due to autophagy dysfunction remain elusive. Here we show that autophagy contributes to cerebellar Purkinje cell (PC) survival by safeguarding their glycolytic activity.

View Article and Find Full Text PDF

Prcis: Deep sclerectomy (DS) and canaloplasty provide better intraocular pressure (IOP) control than viscocanalostomy. DS required less glaucoma medications but more interventions to reach target IOP.

Purpose: To compare real-world outcomes of three non-penetrating glaucoma surgery (NPGS) techniques.

View Article and Find Full Text PDF

This study aimed to provide a comprehensive understanding of the acute and subacute safety and phytochemical profile of pomegranate leaves, aligning with the growing interest in sustainable, plant-based therapeutics. The phytochemical composition and the acute and subacute toxicity of a spray-dried hydroethanolic extract from pomegranate leaves (SDE) were investigated using experimental animal models. Utilizing UV-visible spectrophotometry and liquid chromatography-mass spectrometry (LC-MS), a diverse array of tannins and flavonoids, totaling 38 compounds, was identified.

View Article and Find Full Text PDF

Plasma Proteomic Signature as a Predictor of Age Advancement in People Living With HIV.

Aging Cell

January 2025

Department of Internal Medicine and Radboud Center of Infectious Diseases, Radboudumc, Radboud University, Nijmegen, The Netherlands.

Due to the increased burden of non-AIDS-related comorbidities in people living with HIV (PLHIV), identifying biomarkers and mechanisms underlying premature aging and the risk of developing age-related comorbidities is a priority. Evidence suggests that the plasma proteome is an accurate source for measuring biological age and predicting age-related clinical outcomes. To investigate whether PLHIV on antiretroviral therapy (ART) exhibit a premature aging phenotype, we profiled the plasma proteome of two independent cohorts of virally suppressed PLHIV (200HIV and 2000HIV) and one cohort of people without HIV (200FG) using O-link technology.

View Article and Find Full Text PDF

Large-scale production of infective larvae from engorged .

Front Trop Dis

December 2024

Parasite and Vector Research Unit (PAVRU), Department of Microbiology and Parasitology, University of Buea, Buea, Cameroon.

Background: is transmitted by species and affects hundred millions of inhabitants in about 33 countries in sub-Saharan Africa. It is known that Mansonellosis due to do not result in a clear clinical picture, but down-regulates the immunity of patients predisposing them to other diseases like tuberculosis, HIV and malaria or damping vaccine efficacy. However, research about novel drugs against this filarial nematode is missing because of the lack of parasite material.

View Article and Find Full Text PDF

Potato is cultivated all the year round in Pakistan. However, the major crop is the autumn crop which is planted in mid-October and contributes 80-85% of the total production. The abrupt climate change has affected the weather patterns all over the world, resulting in the reduction of the mean air temperature in autumn by almost 1.

View Article and Find Full Text PDF

Peptide-based therapeutics are gaining attention for their potential to target various viral and host cell factors. One notable example is Pep19-2.5 (Aspidasept), a synthetic anti-lipopolysaccharide peptide that binds to heparan sulfate proteoglycans (HSPGs) and has demonstrated inhibitory effects against certain bacteria and enveloped viruses.

View Article and Find Full Text PDF

Background: Since patients with congenital heart defects (CHD) frequently require life-long medical care and repeat invasive treatment, radiation exposure during interventional procedures is a relevant issue concerning potential radiation related risks. Therefore, an analysis on radiation data from the German Registry for Cardiac Operations and Interventions in patients with CHD was performed.

Methods: From January 2012 until December 2020 a total of 28,374 cardiac catheter interventions were recorded.

View Article and Find Full Text PDF

Analysis of differential gene expression of PBMC for the in vitro detection of drug sensitization.

Allergol Int

January 2025

Research Division, Federal Institute for Drugs and Medical Devices (BfArM), Bonn, Germany; Department of Dermatology and Allergy, University Hospital Aachen, Aachen, Germany.

Background: The detection of drug-specific activation of T cells in the lymphocyte transformation test (LTT) is mainly based on cell proliferation or cytokine secretion. However, the LTT presents with a varying sensitivity and specificity. The aim of our study was to analyse the genome wide gene expression of PBMC to identify drug allergy-specific gene regulation patterns.

View Article and Find Full Text PDF

Background: There are no approved oral disease-modifying treatments for Alzheimer's disease (AD).

Objectives: The objective of this study was to assess efficacy and safety of blarcamesine (ANAVEX®2-73), an orally available small-molecule activator of the sigma-1 receptor (SIGMAR1) in early AD through restoration of cellular homeostasis including autophagy enhancement.

Design: ANAVEX2-73-AD-004 was a randomized, double-blind, placebo-controlled, 48-week Phase IIb/III trial.

View Article and Find Full Text PDF

Aim: Standardized evaluation of [F]PI-2620 tau-PET scans in 4R-tauopathies represents an unmet need in clinical practice. This study aims to investigate the effectiveness of visual evaluation of [F]PI-2620 images for diagnosing 4R-tauopathies and to develop a straight-forward reading algorithm to improve objectivity and data reproducibility.

Methods: A total of 83 individuals with [F]PI-2620 PET scans were included.

View Article and Find Full Text PDF

Background: To compare the clinical outcomes of inferior extensor retinaculum (IER) augmentation following repair of the anterior talofibular ligament (ATFL) with isolated ATFL repair in patients with an arthroscopically confirmed grade 3 lesion of the ATFL.

Methods: We conducted a retrospective study of consecutive chronic lateral ankle instability (CLAI) patients who underwent arthroscopic ATFL repair between March 2018 and August 2022. The average age of the patients was 31.

View Article and Find Full Text PDF

Effects of time-of-day on the noradrenaline, adrenaline, cortisol and blood lipidome response to an ice bath.

Sci Rep

January 2025

Professorship of Exercise Biology, Department Health and Sport Sciences, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany.

While the effect of time-of-day (morning versus evening) on hormones, lipids and lipolysis has been studied in relation to meals and exercise, there are no studies that have investigated the effects of time-of-day on ice bath induced hormone and lipidome responses. In this crossover-designed study, a group of six women and six men, 26 ± 5 years old, 176 ± 7 cm tall, weighing 75 ± 10 kg, and a BMI of 23 ± 2 kg/mhad an ice bath (8-12 °C for 5 min) both in the morning and evening on separate days. Absence from intense physical exercise, nutrient intake and meal order was standardized in the 24 h prior the ice baths to account for confounders such as diet or exercise.

View Article and Find Full Text PDF

Background: In humans, environmental enrichment (EE), as measured by the engagement in a variety of leisure activities, has been associated with larger hippocampal structure and better memory function. The present cross-sectional study assessed whether EE during early life (13-30 years) and midlife (30-65 years) is associated with better preserved memory-related brain activity patterns in older age.

Methods: In total, 372 cognitively unimpaired older adults (aged ≥60 years old) of the DZNE-Longitudinal Study on Cognitive Impairment and Dementia (DELCODE; DRKS00007966) were investigated.

View Article and Find Full Text PDF

Animal translocations provide striking examples of the human footprint on biodiversity. Combining continental-wide genomic and DNA-barcoding analyses, we reconstructed the historical biogeography of the Asian black-spined toad (Duttaphrynus melanostictus), a toxic commensal amphibian that currently threatens two biodiversity hotspots through biological invasions (Wallacea and Madagascar). The results emphasize a complex diversification shaped by speciation and mitochondrial introgression that comprises two distinct species.

View Article and Find Full Text PDF

Background: Lutein, a carotenoid, exhibits various biological activities such as maintaining the health of the eye, skin, heart, and bone. Recently, we found that lutein has dual roles in suppressing bone resorption and promoting bone formation. In this study, we examined the effects of lutein in a disuse-induced osteoporosis model using hindlimb-unloaded (HLU) mice.

View Article and Find Full Text PDF

. As biofilms are known to harbour (multi-)resistant species, their presence in health settings must be considered critical. Although there is evidence that bacteria spread from drains to the outside, there is still a lack of research data focusing on drain biofilms from hospitals.

View Article and Find Full Text PDF

Background: The diagnosis and treatment of epilepsy continue to face numerous challenges, highlighting the urgent need for the development of rapid, accurate, and non-invasive methods for seizure detection. In recent years, advancements in the analysis of electroencephalogram (EEG) signals have garnered widespread attention, particularly in the area of seizure recognition.

Methods: A novel hybrid deep learning approach that combines feature fusion for efficient seizure detection is proposed in this study.

View Article and Find Full Text PDF

Current studies pictured the enteric nervous system and macrophages as modulators of neuroimmune processes in the inflamed gut. Expanding this view, we investigated the impact of enteric neuron-macrophage interactions on postoperative trauma and subsequent motility disturbances, i.e.

View Article and Find Full Text PDF

Introduction: Choosing a medical specialty is a pivotal moment in a physician's career, shaped by personal interests, clinical experiences, and professional interactions. Obstetrics and gynecology (OB-GYN) offers a unique blend of surgical and medical care focused on women's health. Given the growing demand for OB-GYN specialists, understanding the factors that influence students' decisions is essential for workforce planning.

View Article and Find Full Text PDF

This study aims to explore the long-term follow-up needs and motivations of childhood and adolescent cancer survivors and their parents to attend follow-up care in Germany, given the inconsistent adherence to national follow-up guidelines. We developed interview guidelines based on the Theory of Planned Behavior and the stereotype priming model to explore motivations and barriers related to follow-up care. We conducted a total of 36 episodic narrative interviews with adolescent (ages 13-17) and adult (ages 18-45) survivors of pediatric cancer, as well as their parents.

View Article and Find Full Text PDF