19,719 results match your criteria: "M.B.; and Indiana University School of Medicine[Affiliation]"

MRI Dixon Fat-Corrected Look-Locker T1 Mapping for Quantification of Liver Fibrosis and Inflammation-A Comparison With the Non-Fat-Corrected Shortened Modified Look-Locker Inversion Recovery Technique.

Invest Radiol

November 2024

From the Department of Diagnostic, Interventional, and Pediatric Radiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland (J.B.K., B.J., L.E., A.C., V.C.O., A.T.H.); Institute of Forensic Medicine, University of Bern, Bern, Switzerland (J.B.K.); Dr. Kurz Röntgeninstitut AG, Thun, Switzerland (J.B.K.); Siemens Medical Solutions USA, Tucson, AZ (U.G., M.K.); Siemens Medical Solutions USA, New York, NY (M.B.K.); Department of Hepatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland (A.B.); Department of Radiology and Nuclear Medicine, Lucerne Cantonal Hospital, University of Lucerne, Lucerne, Switzerland (L.E., J.R., A.T.H.); and Liver Elastography Center, Translational Imaging Center, Swiss Institute for Translational and Entrepreneurial Medicine, Bern, Switzerland (A.C., V.C.O., A.T.H.).

Objectives: This study evaluates the impact of liver steatosis on the discriminative ability for liver fibrosis and inflammation using a novel Dixon water-only fat-corrected Look-Locker T1 mapping sequence, compared with a standard shortened Modified Look-Locker Inversion Recovery (shMOLLI) sequence, with the aim of overcoming the limitation of steatosis-related confounding in liver T1 mapping.

Materials And Methods: 3 T magnetic resonance imaging of the liver including the 2 T1 mapping sequences and proton density fat fraction (PDFF) was prospectively performed in 24 healthy volunteers and 38 patients with histologically proven liver fibrosis evaluated within 90 days of liver biopsy. Paired Mann-Whitney test compared sequences between participants with and without significant liver steatosis (PDFF cutoff 10%), and unpaired Kruskal-Wallis test compared healthy volunteers to patients with early (F0-2) and advanced (F3-4) liver fibrosis, as well as low (A0-1) and marked (A2-3) inflammatory activity.

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Progressive Apraxia of Speech as a Manifestation of Spinocerebellar Ataxia 2: Case Report.

Neurol Genet

December 2024

From the Neurology (A.M.B., L.M.J., R.G., J.M.M.-T., K.A.J., H.B.); Speech Pathology (G.M., J.S., J.R.D., H.C., R.L.U.); Psychology (M.M.M.); and Radiology (J.L.W.), Mayo Clinic, Rochester, MN.

Objectives: To describe a case of spinocerebellar ataxia presenting with progressive apraxia of speech (AOS).

Methods: A 54-year-old man with progressive speech changes was seen clinically and referred to our observational research program on degenerative speech and language disorders. He underwent detailed speech-language and neurologic assessments and multimodal neuroimaging studies.

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Six Schiff bases with general name 5-(diethylamino)-2-(((halophenyl)imino)methyl)phenol (where halo = 4-fluoro (H1), 2-fluoro (H2), 2-bromo (H3), 4-bromo (H4), 4-chloro (H5) and 3-chloro-4-fluoro (H6)) were prepared by the condensation reaction between 4-(diethylamino)salicylaldehyde and suitable halogenated aromatic amines. The six halogenated Schiff bases were elucidated using different spectroscopic techniques and the structure of H3 and H6 were confirmed using single-crystal X-ray crystallography. The bond lengths of C7-N1, C7-C8 and C8-C9 obtained from structural analysis for both compounds depicted their enol-tautomeric characteristic form.

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Epineural Scarring Visualization and Noninvasive Quantification of a Severe Posttraumatic Complication: An Experimental Magnetic Resonance Neurography Study.

Invest Radiol

November 2024

From the Department of Neuroradiology, Neurological University Clinic, Heidelberg University Hospital, Heidelberg, Germany (M.B., M.F., K.K.-J., M.O.B., S.H., M.B., D.S.); and Department of Hand, Plastic, and Reconstructive Surgery, Burn Center, BG Trauma Center Ludwigshafen, University of Heidelberg, Ludwigshafen, Germany (M.A., M.M.-S., S.C.D., T.K., U.K., L.H., A.H.B.).

Aim: Peripheral nerve scarring is a severe yet common complication following nerve injury or surgery that can lead to impaired nerve function, including chronic pain and sensory or motor deficits. In this study, we aimed to establish high-resolution magnetic resonance neurography (MRN) to accurately visualize and monitor de novo-formed epineural fibrotic adhesions (EFAs) of the sciatic nerve in a rat nerve injury model.

Methods: Employing an established model to induce overshooting EFA, the study included 3 experimental groups of animals (n = 6 each): a positive control group (PC), an intervention group (IG), and a sham group.

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Letermovir and maribavir have demonstrated efficacy in the prevention and treatment, respectively, of immunosuppressed patients with cytomegalovirus (CMV) infection and disease. These patients often have polypharmacy making them at risk for drug-drug interactions. Both letermovir and maribavir can be perpetrators and victims of drug-drug interactions.

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Wild wheat relative Aegilops biuncialis offers valuable traits for crop improvement through interspecific hybridization. However, gene transfer from Aegilops has been hampered by difficulties in detecting introgressed U- and M-genome chromatin in the wheat background at high resolution. The present study applied DArTseq technology to genotype two backcrossed populations (BC382, BC642) derived from crosses of wheat line Mv9kr1 with Ae.

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The SIMPL'HIV study investigated whether switching to dolutegravir (DTG) + emtricitabine (FTC) was noninferior to continuing combined antiretroviral therapy for maintaining HIV-1 suppression at 144 weeks. The study demonstrated that viral suppression, CD4 gains, adverse events, quality of life, and patient satisfaction were comparable between groups, confirming DTG + FTC's safety and efficacy for long-term management of HIV-1 infection.

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Immune responses in checkpoint myocarditis across heart, blood and tumour.

Nature

December 2024

Center for Immunology and Inflammatory Diseases, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA.

Article Synopsis
  • Immune checkpoint inhibitors, a type of cancer treatment, can cause serious side effects, including immune-related myocarditis (irMyocarditis), which can be fatal.
  • Researchers studied immune responses in the heart, tumor, and blood of 28 patients with irMyocarditis using advanced techniques like single-cell RNA sequencing and T-cell receptor (TCR) sequencing.
  • Their findings showed an increase in certain immune cells in the heart tissue of irMyocarditis patients and identified specific TCR clones associated with severe cases, shedding light on the disease's biology and potential biomarkers.
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Article Synopsis
  • - Antibodies are generated by naive B cells turning into plasma cells in germinal centers (GCs) of lymphoid tissues, and patients with B cell lymphoma undergoing immunotherapy have reduced antibody production, leading to higher infection rates and weaker vaccine responses.
  • - Current research models struggle to effectively mimic long-term GC functions and assess B cell responses, prompting the development of synthetic hydrogels that replicate the lymphoid tissue environment to support human GCs from various blood sources.
  • - The new immune organoid systems maintain critical B cell functions longer and offer unique immune programming features; however, they show less effectiveness with lymphoma-derived B cells, indicating a rapid method for studying immune responses and B cell-related disorders.
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Article Synopsis
  • Fragile X syndrome (FXS) is caused by hypermethylation of CGG repeats in the FMR1 gene, resulting in loss of FMRP, which is crucial for normal neuronal function.
  • Research has shown that FMRP loss leads to abnormal synaptic activity and hyperexcitability in neurons, but effective treatments have yet to be found due to translation issues from animal models to humans.
  • A new high-resolution all-optical electrophysiology platform has been developed to create a sensitive assay that measures FMRP re-expression and healthy neuron restoration, which can be used to identify potential new therapies for FXS.
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Multi-label text classification via secondary use of large clinical real-world data sets.

Sci Rep

November 2024

Research Unit for Digital Surgery, Division of Plastic, Aesthetic and Reconstructive Surgery, Department of Surgery, Medical University of Graz, Auenbruggerplatz 29/4, 8036, Graz, Austria.

Article Synopsis
  • Procedural coding is a significant challenge for clinicians, but advancements in natural language processing (NLP) can help create applications that ease their administrative tasks by predicting procedure codes from operative notes.
  • This study focused on adapting existing German medical BERT models to perform multi-label classification for predicting procedure codes, using approximately 350,000 coded surgery notes to train various models, including support vector machines and fastText.
  • The results indicated that support vector machines generally outperformed other models for longer reports, while fastText showed comparable performance to BERT models and was easier to explain, highlighting the potential for effective coding support applications.
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The focus of the current work is the study of the effect of the photo-catalytic activity of ZnO nanoparticles. The photocatalytic destruction of methylene blue dye, a common water contaminant, was used to assess the photocatalytic efficiency of the ZnO nanoparticles from its aqueous solution by using ZnO nanoparticles thin film under UV light and laser irradiation. Sol-gel methods prepared ZnO nanoparticle thin films.

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Background: Blood pressure (BP)-lowering effects of structured exercise are well-established. Effects of 24-hour movement behaviors captured in free-living settings have received less attention. This cross-sectional study investigated associations between a 24-hour behavior composition comprising 6 parts (sleeping, sedentary behavior, standing, slow walking, fast walking, and combined exercise-like activity [eg, running and cycling]) and systolic BP (SBP) and diastolic BP (DBP).

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Randomized Trial of Very Early Medication Abortion.

N Engl J Med

November 2024

From the Department of Women's and Children's Health, Division of Obstetrics and Gynecology (K.B., K.G.-D.), and the Department of Clinical Sciences at Danderyd Hospital (H.K.K.), Karolinska Institutet, and the Department of Obstetrics and Gynecology, Karolinska University Hospital (K.G.-D.), Stockholm, Södertälje Hospital, Södertälje (K.B.), the Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Sahlgrenska University Hospital, Gothenburg (T.J.-A., H.H.), the Department of Obstetrics and Gynecology, Skåne University Hospital, Malmö (P.T.), the Department of Clinical Sciences, Lund University Faculty of Medicine, Lund (P.T.), the Department of Clinical Sciences, Obstetrics, and Gynecology, Umeå University, Umeå (M.B.), and Statisticon, Uppsala (J.B.) - all in Sweden; the Centre for Reproductive Health, Institute for Regeneration and Repair, University of Edinburgh, and Chalmers Centre, NHS Lothian - both in Edinburgh (J.R.-W., S.C.); the Departments of Obstetrics and Gynecology (F.G., J.K., O.H.) and General Practice and Primary Health Care (F.G.), University of Helsinki and Helsinki University Hospital, Helsinki, and the Division of Health and Social Services, Wellbeing Services County of Vantaa and Kerava, Vantaa (F.G.) - both in Finland; the Center for Research on Environment, Health, and Population Activities, Kathmandu (A.T.), and KIST Medical College Teaching Hospital, Lalitpur (H.T.) - both in Nepal; Family Planning Australia, Sydney Medical School, University of Sydney, and the School of Public Health, University of Technology Sydney - all in Sydney (C.B.); Women's Health, Auckland City Hospital, Auckland, New Zealand (K.S., G.G.); the Department of Obstetrics and Gynecology, Haukeland University Hospital, Bergen, Norway (M.L.); and the Department of Obstetrics and Gynecology, Copenhagen University Hospital Hvidovre, Hvidovre (M.M.K.), and the Hospital of Southern Jutland, Aabenraa (E.K.) - both in Denmark.

Article Synopsis
  • The study investigated the effectiveness and safety of medication abortion using mifepristone and misoprostol in women up to 42 days of gestation without confirmed intrauterine pregnancy using ultrasound.
  • A total of 1504 women were randomly assigned to either an early-start abortion group or a standard delayed care group, and the primary outcome measured was the rate of complete abortion.
  • The results showed a nearly identical rate of complete abortion between the two groups (95.2% early-start vs 95.3% standard), indicating that starting medication abortion before confirming intrauterine pregnancy is as safe and effective as standard care.
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Screened Out - How a Survey Change Sheds Light on Iatrogenic Opioid Use Disorder.

N Engl J Med

December 2024

From the Opioid Policy Research Collaborative, the Heller School for Social Policy and Management, Brandeis University, Waltham, MA (A.K.); and the Jiann-Ping Hsu College of Public Health, Georgia Southern University, Statesboro (R.M.B.).

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Background: Alveolar soft-part sarcoma (ASPS) is a rare tumor driven by the ASPSCR1-TFE3 fusion protein, with a propensity for metastasis. Prognostic factors remain poorly understood, and traditional chemotherapies are largely ineffective. Recent interest lies in immune checkpoint inhibitors (ICIs), yet predictive biomarkers for treatment response are lacking.

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Background: While clinical practice guidelines advocate for multidisciplinary heart team (MDHT) discussions in coronary revascularization, variability in implementation across health care settings remains a challenge. This variability could potentially be addressed by language learning models like ChatGPT, offering decision-making support in diverse health care environments. Our study aims to critically evaluate the concordance between recommendations made by MDHT and those generated by language learning models in coronary revascularization decision-making.

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Novel scaffolds for broad-spectrum antibiotics are rare and in strong demand because of the increase in antimicrobial resistance. The cystobactamids, discovered from myxobacterial sources, have a unique hexapeptidic scaffold with five arylamides and possess potent, resistance-breaking properties. This study investigates the role of the central D-ring pharmacophore in cystobactamids, a para-aminobenzoic acid (PABA) moiety that is additionally substituted by hydroxy and isopropoxy functions.

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Lance-Adams Syndrome: It Really Comes From the Cortex!

Neurology

December 2024

From the Department of Neurology (J.C.v.Z.), University Medical Center Groningen; and Department of Neurology (M.B.), Amsterdam University Medical Centers, Amsterdam Neuroscience, University of Amsterdam, Amsterdam, The Netherlands.

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Article Synopsis
  • This study examines how leisure activities throughout life influence cognitive function in aging individuals, including those with Alzheimer's disease (AD).
  • The research was conducted with participants across different cognitive states—AD, Mild Cognitive Impairment (MCI), and healthy controls—who completed a questionnaire on their leisure activities, underwent cognitive exams, and brain scans.
  • Findings suggest that social and physical activities in middle age, along with other lifestyle factors, significantly predict current cognitive ability, underscoring the importance of engaging in stimulating activities to build cognitive reserves against decline.
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Coronary artery disease (CAD) is characterized by narrowing and subsequent blockade of coronary arteries, and imposes a significant health and economic burden. Stent and scaffold devices are introduced in advanced CAD to improve vascular stability and restore blood flow. Although in vitro flow systems like the Chandler loop have been developed to enhance the understanding of interactions between device materials, their coatings, and vascular cells, imaging-based in vitro analysis of device performance is limited.

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Existing ecofriendly apprehensions about climate change have directed scientists to discover plant-based vegetable oils for use as fuels, such as straight vegetable oils and their biodiesels, because of their renewability, nontoxic nature, biodegradability, and environmental friendliness. This experimental study intended to reveal the tribological aspects of 90 °C preheated straight vegetable oil (PHSVO90) used in a 7.35 kW, 1000 rpm constant speed indirect injection (IDI) diesel engine and likened to conventional diesel operation by conducting an elongated term durability examination for 512 h as per IS:10000 standards.

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Thermoplastic road markings - Description and microplastic pollution estimate in Sweden.

J Environ Manage

October 2023

Politechnika Krakowska, ul. Warszawska 24, 31-155 Kraków, Poland. Electronic address:

Road markings were sometimes reported as meaningful contributors to microplastic pollution. To estimate their wear, 126 pedestrian crossings, which constitute the worst-case scenario because all passing vehicles encroach on them, were analysed for luminance loss as an indicator of complete abrasion. The assessment was done in Sweden, where thermoplastic road marking materials prevail - unique because they can be made with polymeric or non-polymeric binders.

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