Publications by authors named "Dietrich T"

Periodontitis is a ubiquitous chronic inflammatory disease affecting the supporting tissues of the teeth and is a major cause of multiple tooth loss. Despite being preventable, periodontitis and dental caries are responsible for more years lost to disability than any other human condition. The most severe form of periodontitis affects 1 billion individuals, and its prevalence is increasing globally.

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This review paper offers a concise guide on how to execute Delphi-based interdisciplinary consensus statements on imaging. Fundamental to the Delphi methodology are several core principles. First, an initial key element is the selection of experts, known as panelists.

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Article Synopsis
  • - Oncology and critical care patients are at a higher risk for central line-associated bloodstream infections (CLABSIs) and thrombotic occlusions due to the use of central vascular access devices (CVADs), with CLABSIs increasing by 63% during the COVID-19 pandemic.
  • - A quality improvement project introduced 4% ethylenediaminetetraacetic acid (EDTA) as an antimicrobial locking solution, leading to a significant decrease in CLABSIs from 36 cases in 16 months to 6 cases in 6 months (a 59% reduction).
  • - Though the study showed promising results in reducing CLABSIs, it found no significant improvement in occlusions, and further research
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Purpose: To systematically analyse the time course of vessel wall enhancement and associated stenosis in patients with primary angiitis of the central nervous system (PACNS) following immunosuppressive therapy.

Material And Methods: Two neuroradiologists retrospectively analysed MRIs of patients with PACNS seen at the Bern University Hospital and the St. Gallen Cantonal Hospital between 2015 and 2020.

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Background: Ultrasound (US) is often the first method used to look for brain or cerebrospinal fluid (CSF) space pathologies. Knowledge of normal CSF width values is essential. Most of the available US normative values were established over 20 years ago, were obtained with older equipment, and cover only part of the age spectrum that can be examined by cranial US.

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Purpose: Periodontitis, a ubiquitous severe gum disease affecting the teeth and surrounding alveolar bone, can heighten systemic inflammation. We investigated the association between very severe periodontitis and early biomarkers of age-related macular degeneration (AMD), in individuals with no eye disease.

Design: Cross-sectional analysis of the prospective community-based cohort United Kingdom (UK) Biobank.

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Lysosomes are crucial organelles essential for various cellular processes, and any damage to them can severely compromise cell viability. This study uncovers a previously unrecognized function of the calcium- and phospholipid-binding protein Annexin A7 in lysosome repair, which operates independently of the Endosomal Sorting Complex Required for Transport (ESCRT) machinery. Our research reveals that Annexin A7 plays a role in repairing damaged lysosomes, different from its role in repairing the plasma membrane, where it facilitates repair through the recruitment of ESCRT-III components.

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  • - This study emphasizes the importance of assessing animal welfare and discomfort in research by focusing on various indicators, including body condition, weight, and behavior, specifically in mice with arthritis.
  • - Researchers analyzed nesting behavior in multiple mouse strains suffering from collagen antibody-induced arthritis (CAIA) and found a slight correlation between nesting scores and overall health metrics like body weight and grip strength.
  • - The findings suggest that monitoring nesting behavior could be an effective, non-invasive method to evaluate the well-being of mice in experimental arthritis studies, and it may support the idea of providing nesting material during severe disease stages.
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Objectives: The purpose of this meta-analysis was to determine the diagnostic performance of conventional MRI and MR arthrography for tendinosis, and partial and complete tears of the long head of the biceps tendon (LHBT) using arthroscopy as the reference standard.

Materials And Methods: A systematic review was performed using predefined data fields in PubMed, and all articles published from January 2000 up to April 2022 were retrospectively pooled and reviewed. Six MRI studies on complete tear (n = 555) and ten studies on partial tear/tendinosis (n = 2487) were included in the analysis.

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  • The detection of gravitational-wave signal GW170817 and its associated phenomena (kilonova and gamma-ray burst) marked a significant advance in astrophysics, indicating the need for strong theoretical models to interpret these diverse signals.
  • The NMMA framework was developed to integrate nuclear-physics data and observational evidence, helping to analyze the behaviors of dense matter in neutron stars.
  • This paper presents an extension of the NMMA code to simultaneously analyze the signals from GW170817, the kilonova, and the gamma-ray burst, allowing for the estimation of a neutron star's radius.
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Lysosomes are acidic organelles responsible for lipid catabolism, and their functions can be disrupted by cationic amphiphilic drugs that neutralize lumenal pH and thereby inhibit most lysosomal hydrolases. These drugs can also induce lysosomal membrane permeabilization and cancer cell death, but the underlying mechanism remains elusive. Here, we uncover that the cationic amphiphilic drugs induce a substantial accumulation of cytolytic lysoglycerophospholipids within the lysosomes of cancer cells, and thereby prevent the recycling of lysoglycerophospholipids to produce common membrane glycerophospholipids.

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Background: The vasoactive neuropeptide calcitonin gene-related peptide alpha (αCGRP) enhances nociception in primary knee osteoarthritis (OA) and has been shown to disrupt cartilage and joint integrity in experimental rheumatoid arthritis (RA). Little is known about how αCGRP may alter articular structures in primary OA. We investigated whether αCGRP modulates local inflammation and concomitant cartilage and bone changes in a murine model of age-dependent OA.

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We present a comprehensive simulative and experimental investigation of how period-chirped pulse compression gratings affect the compressed pulses. A specifically developed ray-tracing tool was used for the simulative investigations. It is shown that the chirp creates a characteristic spatio-spectral error pattern, which leads to a degradation of the beam quality and an increase of the pulse duration.

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Objective: To evaluate the reliability and validity of a novel method for remotely measuring trismus.

Materials And Methods: We recruited 60 volunteers who took three types of photographs at a fixed restricted jaw position mimicking limited mouth opening, including one selfie and one portrait with or without a reference frame. Additionally, the interincisal distance and the width of the upper central incisors were measured with a ruler, as per common practice.

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Objective: Bioabsorbable magnesium-based alloy screws release gas upon resorption. The resulting findings in the adjacent soft tissues and joints may mimic infection. The aim of the study was to evaluate the ultrasound (US) findings in soft tissues and joints during screw resorption.

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The usefulness of perfluorocarbon nanoemulsions for the imaging of experimental myocarditis has been demonstrated in a high-field 9.4 Tesla MRI scanner. Our proof-of-concept study investigated the imaging capacity of PFC-based F/H MRI in an animal myocarditis model using a clinical field strength of 1.

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Background: Information on the use of preventive dental services and associated variables is needed to guide policy for the old adult population and consequently promote better oral health-related quality of life (OHRQoL).

Objective: To investigate the association between preventive dental service use and OHRQoL by older Brazilians.

Materials And Methods: This cross-sectional study was carried out using the baseline data of participants of the Brazilian Longitudinal Stud of Aging (ELSEI-Brazil) who were aged 60 years or more.

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Objective: To determine the age-related prevalence and imaging characteristics of the superior acetabular roof notch (SARN) on hip MRI and radiographs in a young study population.

Materials And Methods: Retrospective analysis of 304 MRI examinations and corresponding available radiographs of patients between the ages of 4 and 24 years. Two observers classified SARN with fluid-like findings on MRI as type-1, whereas SARN with fat-like findings on MRI were classified as type-2.

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VR FestLab is a virtual reality party simulation application. The tool allows users to make decisions while experiencing a virtual party where they are offered alcohol. This study examines the user experience, game satisfaction, and engagement of 181 adolescent users (aged 15-18) with VR FestLab involving seven schools in Denmark.

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Introduction: Climbing up and down stairs with crutches is a particular challenge. The current study evaluates a commercially available insole orthosis device for weighing an affected limb and for biofeedback training of gait. This study was done on healthy, asymptomatic individuals before applying to the intended postoperative patient.

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Objectives: The purpose of this agreement was to establish evidence-based consensus statements on imaging of distal radioulnar joint (DRUJ) instability and triangular fibrocartilage complex (TFCC) injuries by an expert group using the Delphi technique.

Methods: Nineteen hand surgeons developed a preliminary list of questions on DRUJ instability and TFCC injuries. Radiologists created statements based on the literature and the authors' clinical experience.

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Background: The resorption of magnesium-based alloy bioabsorbable screws results in the release of hydrogen gas, which can mimic infection and enter the growth plate. The screw itself and the released gas may also affect image quality.

Objective: The evaluation of magnetic resonance imaging (MRI) findings during the most active phase of screw resorption is the objective, with particular focus on the growth plate and to assess for the presence of metal-induced artifacts.

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Background: Procalcitonin (PCT) is applied as a sensitive biomarker to exclude bacterial infections in patients with rheumatoid arthritis (RA) flare-ups. Beyond its diagnostic value, little is known about the pathophysiological role of PCT in RA.

Methods: Collagen antibody-induced arthritis (CAIA) was induced in Calca-deficient mice (Calca), lacking PCT (n = 15), and wild-type (WT) mice (n = 13), while control (CTRL) animals (n = 8 for each genotype) received phosphate-buffered saline.

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