Publications by authors named "Lena Ulm"

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Development and validation of a core genome multilocus sequence typing scheme for : application in outbreak investigations and comparative analysis across the genus.
Bärbel Kieninger, Gabriel E Wagner, Anca Rath, Anja Eichner, Jürgen Fritsch, Lena Ulm

J Clin Microbiol· October 2025

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COVID-19 vaccination lowers SARS-CoV-2 infection risk independent of diabetes, cancer and smoking in SHIP-COVID cohort, Northern Germany.
Muhammad Nasir Khan Khattak, Josefin Pauline Haß, Till Ittermann, Marcus Dörr, Ola Sidahmed, Lena Ulm

Sci Rep· October 2025

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Platelet-activating histone/antihistone IgG complexes in anti-PF4-negative thrombosis and thrombocytopenia syndrome.
Max Esefeld, Stefan Handtke, Rainer Kaiser, Leo Nicolai, Lea Di Fina, Lena Ulm

Blood Adv· August 2025

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Non-cross-reactive epitopes dominate the humoral immune response to COVID-19 vaccination - kinetics of plasma antibodies, plasmablasts and memory B cells.
Kilian A Wietschel, Kevin Fechtner, Elmer Antileo, Goran Abdurrahman, Chiara A Drechsler, Lena Ulm

Front Immunol· May 2024

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Predictors of post-stroke delirium incidence and duration: Results of a prospective observational study using high-frequency delirium screening.
Robert Fleischmann, Tina Andrasch, Sina Warwas, Rhina Kunz, Stefan Gross, Lena Ulm

Int J Stroke· March 2023

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Splenic rupture and fungal endocarditis in a pediatric patient with invasive fusariosis after allogeneic hematopoietic stem cell transplantation for aplastic anemia: A case report.
Maurice Hannemann, Dunja Wilmes, Frank Dombrowski, Jürgen Löffler, Alexander Kaminski, Lena Ulm

Front Pediatr· December 2022

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Prevalence of SARS-CoV-2 IgG antibodies among dental teams in Germany.
Maria Mksoud, Till Ittermann, Birte Holtfreter, Andreas Söhnel, Carmen Söhnel, Lena Ulm

Clin Oral Investig· May 2022

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The epidemiological relevance of the COVID-19-vaccinated population is decreasing after booster vaccination, as shown by incidence rate ratios.
Jürgen A Bohnert, Lena Ulm, Nils-Olaf Hübner, Ulrike Seifert, Karsten Becker

Lancet Reg Health Eur· May 2022

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A flow cytometric assay to detect platelet-activating antibodies in VITT after ChAdOx1 nCov-19 vaccination.
Stefan Handtke, Martina Wolff, Carlo Zaninetti, Jan Wesche, Linda Schönborn, Lena Ulm

Blood· July 2021

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Frequency of positive anti-PF4/polyanion antibody tests after COVID-19 vaccination with ChAdOx1 nCoV-19 and BNT162b2.
Thomas Thiele, Lena Ulm, Silva Holtfreter, Linda Schönborn, Sven Olaf Kuhn

Blood· July 2021

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External Validation of Five Scores to Predict Stroke-Associated Pneumonia and the Role of Selected Blood Biomarkers.
Benjamin Hotter, Sarah Hoffmann, Lena Ulm, Christian Meisel, Alejandro Bustamante

Stroke· January 2021

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Inflammatory and stress markers predicting pneumonia, outcome, and etiology in patients with stroke: Biomarkers for predicting pneumonia, functional outcome, and death after stroke.
Benjamin Hotter, Sarah Hoffmann, Lena Ulm, Joan Montaner, Alejandro Bustamante

Neurol Neuroimmunol Neuroinflamm· May 2020

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IL-6 Plasma Levels Correlate With Cerebral Perfusion Deficits and Infarct Sizes in Stroke Patients Without Associated Infections.
Benjamin Hotter, Sarah Hoffmann, Lena Ulm, Christian Meisel, Jochen B Fiebach

Front Neurol· February 2019

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Stroke-induced immunodepression and dysphagia independently predict stroke-associated pneumonia - The PREDICT study.
Sarah Hoffmann, Hendrik Harms, Lena Ulm, Darius G Nabavi, Bruno-Marcel Mackert

J Cereb Blood Flow Metab· December 2017

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Selection bias in clinical stroke trials depending on ability to consent.
Benjamin Hotter, Lena Ulm, Sarah Hoffmann, Mira Katan, Joan Montaner

BMC Neurol· December 2017

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The Randomized Controlled STRAWINSKI Trial: Procalcitonin-Guided Antibiotic Therapy after Stroke.
Lena Ulm, Sarah Hoffmann, Darius Nabavi, Marcella Hermans, Bruno-Marcel Mackert

Front Neurol· April 2017

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Neural Mechanisms Underlying Perilesional Transcranial Direct Current Stimulation in Aphasia: A Feasibility Study.
Lena Ulm, Katie McMahon, David Copland, Greig I de Zubicaray, Marcus Meinzer

Front Hum Neurosci· October 2015

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Transcranial direct current stimulation in mild cognitive impairment: Behavioral effects and neural mechanisms.
Marcus Meinzer, Robert Lindenberg, Mai Thy Phan, Lena Ulm, Carina Volk

Alzheimers Dement· September 2015

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Effective treatment with intravenous immunoglobulins reduces autoreactive T-cell response in patients with CIDP.
Juliane Klehmet, Jos Goehler, Lena Ulm, Siegfried Kohler, Christian Meisel

J Neurol Neurosurg Psychiatry· June 2015

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Circulating lymphocyte and T memory subsets in glucocorticosteroid versus IVIG treated patients with CIDP.
Juliane Klehmet, Max Staudt, Lena Ulm, Nadine Unterwalder, Andreas Meisel

J Neuroimmunol· June 2015

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A circle-monitor for computerised assessment of visual neglect in peripersonal space.
Lena Ulm, Dorota Wohlrapp, Marcus Meinzer, Robert Steinicke, Alexej Schatz

PLoS One· March 2015

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Changes in chronotype after stroke: a pilot study.
Thomas Kantermann, Andreas Meisel, Katharina Fitzthum, Thomas Penzel, Ingo Fietze, Lena Ulm

Front Neurol· January 2015

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Transcranial direct current stimulation of the primary motor cortex improves word-retrieval in older adults.
Marcus Meinzer, Robert Lindenberg, Mira M Sieg, Laura Nachtigall, Lena Ulm

Front Aging Neurosci· October 2014

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Transcranial direct current stimulation and simultaneous functional magnetic resonance imaging.
Marcus Meinzer, Robert Lindenberg, Robert Darkow, Lena Ulm, David Copland

J Vis Exp· April 2014

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STRoke Adverse outcome is associated WIth NoSocomial Infections (STRAWINSKI): procalcitonin ultrasensitive-guided antibacterial therapy in severe ischaemic stroke patients - rationale and protocol for a randomized controlled trial.
Lena Ulm, Stephanie Ohlraun, Hendrik Harms, Sarah Hoffmann, Juliane Klehmet

Int J Stroke· October 2013

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