123 results match your criteria: "Phillips University Marburg[Affiliation]"

Objectives: This study aimed to evaluate the effectiveness of an instruction-video, with and without additional hands-on instruction, in teaching young adults proper flossing performance.

Materials And Methods: This randomised intervention and observational study included 94 participants, 24 (23; 25) years, receiving an instruction-video with (group 1) or without additional hands-on instruction (group 2). The flossing performance was assessed by videotaping before instruction (T1), after instruction and one week of practice (T2), as well as after two weeks of practice (T3).

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  • Pyrrolizidine alkaloids (PAs) are a diverse group of compounds found in plants and bacteria, characterized by a specific chemical structure and produced through two main pathways (one in plants and another in bacteria).
  • The study identified a gene cluster in the bacterium Xenorhabdus hominickii responsible for the production of a specific PA called pyrrolizwilline, shedding light on its biosynthesis.
  • Researchers also characterized an important enzyme in the pathway, XhpG, utilizing advanced techniques like X-ray crystallography to understand its role in converting a precursor compound into pyrrolizwilline.
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Introduction: The treatment of acute ischemic stroke due to large artery vessel occlusion experienced a dramatic development within the last decade. This meta-analysis investigates the effectiveness of bridging therapy (BT) versus mechanical thrombectomy (MT) alone in treating acute ischemic stroke.

Methods: Two independent reviewers assessed two-arm clinical trials from Scopus, PubMed, Web of Science, and the Cochrane Library up to January 2024.

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Applications to augment patient care for Internal Medicine specialists: a position paper from the EFIM working group on telemedicine, innovative technologies & digital health.

Front Public Health

July 2024

Internal Medicine Department, Hospital Regional Universitario de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA), University of Málaga, Málaga, Spain.

Telemedicine applications present virtually limitless prospects for innovating and enhancing established and new models of patient care in the field of Internal Medicine. Although there is a wide range of innovative technological solutions in Europe, there are overarching elements associated with such technologies when applied to the practices of Internal Medicine specialists. The European Federation of Internal Medicine (EFIM) strongly advocates for active leadership and influence from the Internal Medicine societies and specialist physicians across Europe in the development and application of telemedicine and digital technologies in healthcare.

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Introduction: Imagery rescripting (ImRs) is a psychotherapeutic intervention targeting aversive memories. During the three-phase intervention, patients reexperience their aversive memory (phase 1), observe the scene from their adult perspective, and intervene to help their former selves (phase 2), and reexperience it again with the positive changes (phase 3). Previous studies have rarely investigated emotional and regulatory processes taking place during the intervention.

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Hexestrol, an estrogen receptor agonist, inhibits Lassa virus entry.

J Virol

July 2024

Laboratory of Ultrastructural Virology, Institute for Life and Medical Sciences, Kyoto University, Kyoto, Japan.

Article Synopsis
  • Lassa virus (LASV) causes severe Lassa fever, resulting in thousands of deaths annually, and currently, there are no approved vaccines or antiviral treatments available.
  • Researchers screened around 2,500 compounds and identified hexestrol (HES), an estrogen receptor agonist, as a potential LASV entry inhibitor, showing strong antiviral activity against both recombinant and authentic LASV strains.
  • HES works by blocking the membrane fusion step critical for LASV entry, and modifications to the Lassa glycoprotein suggested that the transmembrane region could be an important target for developing new anti-LASV drugs.
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  • - NOSO-95A, an antibiotic from entomopathogenic Xenorhabdus bacteria, is the first of the odilorhabdin class, showing broad-spectrum activity and paving the way for the synthetic derivative NOSO-502, which may combat antibiotic resistance.
  • - Although the action of odilorhabdins has been studied, their biosynthesis was not well understood until researchers produced NOSO-95A in E. coli by refactoring its biosynthetic gene cluster (BGC).
  • - By applying NRPS engineering techniques, the team explored biosynthetic pathways and discovered mechanisms for creating unusual amino acids, which could help develop new odilorhabdin analogues with better therapeutic properties.
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Aedes-transmitted arboviral infections such as Dengue, Yellow Fever, Zika and Chikungunya are increasing public health problems. Xenorhabdus and Photorhabdus bacteria are promising sources of effective compounds with important biological activities. This study investigated the effects of cell-free supernatants of X.

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  • Researchers are exploring biopesticides from Xenorhabdus and Photorhabdus bacteria to control Aedes albopictus mosquitoes, as these bacteria show significant insecticidal properties.
  • Testing revealed that various strains of Xenorhabdus and Photorhabdus could kill mosquito larvae with mortality rates between 52-100%, and they also inhibited mosquito egg hatching.
  • Key compounds, fabclavine and xenocoumacin, were identified as effective larvicides, indicating potential for developing them into new biolarvicides or enhancing existing products for mosquito control.
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  • Researchers developed new genetic tools for the bacteria Photorhabdus and Xenorhabdus, which live with nematodes and produce valuable metabolites.
  • They created versatile expression vectors and a CRISPR system using SEVA plasmids, effective in both common and less-studied bacterial strains.
  • The study's findings enable easier gene editing and activation of biosynthetic gene clusters, leading to increased production of important compounds like safracin B, which is related to cancer treatment.
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Resuscitation (un-)wanted: Does anyone care? A retrospective real data analysis.

Resuscitation

May 2024

Department of Emergency Medicine, DGD Diakonie-Hospital Wehrda, Hebronberg 5, 35041 Marburg, Germany. Electronic address:

Background And Objectives: In case of out-of-hospital cardiac arrest (OHCA) personnel of the emergency medical services (EMS) are regularly confronted with advanced directives (AD) and do-not-attempt-resuscitation (DNACPR) orders. The authors conducted a retrospective analysis of EMS operation protocols to examine the prevalence of DNACPR in case of OHCA and the influence of a presented DNACPR on CPR-duration, performed Advanced-Life-Support (ALS) measures and decision making.

Materials And Methods: Retrospective analysis of prehospital medical documentation of all resuscitation incidents in a German county with 250,000 inhabitants from 1 January 2016 to 31 December 2022.

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NF2-related schwannomatosis (NF2-SWN) is a rare genetic disorder and is associated with progressive morbidities. This study aimed to investigate the relationship between NF2-SWN disease severity, health-related Quality of Life (QoL), and mental health aspects of patients. Standardised questionnaires assessing mental health problems (symptoms of depression, anxiety, and somatic burden), psychological factors (resilience, loneliness, and personality functioning), and health-related QoL were administered to 97 patients with NF2-SWN.

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  • Many drugs used in medicine come from bacterial natural products created by complex enzymes called nonribosomal peptide synthetases (NRPSs) that link amino acids together.
  • This research identifies new recombination sites within a specific part of NRPSs, the thiolation (T) domain, paving the way for innovative engineering of these enzymes.
  • The study introduces a method called "eXchange Unit between T domains" (XUT), which enables scientists to combine NRPS fragments with different characteristics to create specific drugs, such as a proteasome inhibitor constructed from five distinct NRPS pieces.
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Background: Several studies indicate that compulsive sexual behavior disorder (CSBD) shares core elements with substance use disorder (SUD). These findings support the assumption of common mechanisms in addiction, which may lead to a higher tendency in patients with SUD to have comorbid CSBD. Nevertheless, this relationship between CSBD and SUD is poorly understood to date.

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  • Fungal pathogens, particularly smut fungi, use specialized molecules called effectors for infection, with smut fungi having smaller genomes and secretomes compared to other plant pathogens.
  • A study analyzed the secretomes of 11 Ustilaginaceae species, identifying 53 core effector protein groups conserved in this family.
  • Testing revealed that 20 out of 53 mutant strains lacking specific effectors showed reduced virulence, leading to the identification of seven new core effectors that contribute to pathogenicity.
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Genome Sequence Analysis of Native Strains Isolated from Entomopathogenic Nematodes in Argentina.

Toxins (Basel)

February 2024

ICiagro Litoral, CONICET, Facultad de Ciencias Agrarias, Universidad Nacional del Litoral, Kreder 2805, Esperanza S3080, Argentina.

Article Synopsis
  • Entomopathogenic nematodes from the Steinernematidae family can rapidly kill insects, aided by their symbiotic bacteria, making them potential tools for pest control.
  • This study focused on sequencing genomes of fourteen strains isolated from nematodes in Argentina, which were all capable of killing specific insect larvae.
  • Researchers identified 110 insecticidal proteins and proposed new species within the bacterial genus based on genetic analysis, highlighting the evolutionary diversity and biocidal potential of these nematodes and their associated bacteria.
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As neuroendocrine tumors (NETs) often present as metastatic lesions, immunohistochemical assignment to a site of origin is one of the most important tasks in their pathologic assessment. Because a fraction of NETs eludes the typical expression profiles of their primary localization, additional sensitive and specific markers are required to improve diagnostic certainty. We investigated the expression of the transcription factor Pituitary Homeobox 2 (PITX2) in a large-scale cohort of 909 NET and 248 neuroendocrine carcinomas (NEC) according to the immunoreactive score (IRS) and correlated PITX2 expression groups with general tumor groups and primary localization.

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Two subtypes of compulsive sexual behavior disorder.

Front Psychiatry

November 2023

Department for Psychotherapy and Systems Neuroscience, University of Giessen, Giessen, Germany.

Models explaining addictive behaviors such as the Interaction of Person-Affect-Cognition-Execution (I-PACE) model emphasize the importance of reinforcement mechanisms for developing and maintaining these behaviors, including compulsive sexual behavior disorder (CSBD) as well as personal characteristics as vulnerability factors. This study aimed to determine whether there are CSBD subtypes distinguished by reinforcement sensitivity. We hypothesize that one subtype is sensitive to positive reinforcement (Csubtype) and one is sensitive to negative reinforcement (Ȼsubtype).

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The current state-of-the-art analysis of central nervous system (CNS) tumors through DNA methylation profiling relies on the tumor classifier developed by Capper and colleagues, which centrally harnesses DNA methylation data provided by users. Here, we present a distributed-computing-based approach for CNS tumor classification that achieves a comparable performance to centralized systems while safeguarding privacy. We utilize the t-distributed neighborhood embedding (t-SNE) model for dimensionality reduction and visualization of tumor classification results in two-dimensional graphs in a distributed approach across multiple sites (DistSNE).

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Complementary to synaptophysin and chromogranin A, insulinoma-associated protein 1 (INSM1) has emerged as a sensitive marker for the diagnosis of neuroendocrine neoplasms. Since there are no comparative data regarding INSM1 expression in conventional colorectal adenocarcinomas (CRCs) and colorectal mixed adenoneuroendocrine carcinomas/neuroendocrine carcinomas (MANECs/NECs), we examined INSM1 in a large cohort of conventional CRCs and MANECs/NECs. In conventional CRC, we put a special focus on conventional CRC with diffuse expression of synaptophysin, which carry the risk of being misinterpreted as a MANEC or a NEC.

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Prophages control their lifestyle to either be maintained within the host genome or enter the lytic cycle. Bacillus subtilis contains the SPβ prophage whose lysogenic state depends on the MrpR (YopR) protein, a key component of the lysis-lysogeny decision system. Using a historic B.

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  • * A functioning syndrome is characterized by a clinical presentation and high levels of specific hormones due to the presence of NETs, with several types identified, including insulinoma and gastrinoma.
  • * The recommendations include approaches for biochemical, genetic, and imaging assessments, as well as management strategies for different hormonal syndromes in pancreatic NETs, particularly for well-differentiated tumors.
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Background: There are phenomenological similarities between social anxiety disorder (SAD) and posttraumatic stress disorder, such as a provoking aversive event, posttraumatic stress symptoms (e.g. intrusions) in response to these events and deficient (context-dependent) fear conditioning processes.

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