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  1. Article ; Online: m

    Kmietczyk, Vivien / Riechert, Eva / Kalinski, Laura / Boileau, Etienne / Malovrh, Ellen / Malone, Brandon / Gorska, Agnieszka / Hofmann, Christoph / Varma, Eshita / Jürgensen, Lonny / Kamuf-Schenk, Verena / Altmüller, Janine / Tappu, Rewati / Busch, Martin / Most, Patrick / Katus, Hugo A / Dieterich, Christoph / Völkers, Mirko

    Life science alliance

    2019  Volume 2, Issue 2

    Abstract: Conceptually similar to modifications of DNA, mRNAs undergo chemical modifications, which can affect their activity, localization, and stability. The most prevalent internal modification in mRNA is the methylation of adenosine at the ... ...

    Abstract Conceptually similar to modifications of DNA, mRNAs undergo chemical modifications, which can affect their activity, localization, and stability. The most prevalent internal modification in mRNA is the methylation of adenosine at the N
    MeSH term(s) Adenosine/chemistry ; Animals ; Cardiomyopathy, Dilated/genetics ; Cardiomyopathy, Dilated/pathology ; Cell Enlargement ; Cell Proliferation/genetics ; Cell Size ; Cells, Cultured ; Cohort Studies ; Gene Expression Regulation ; Gene Knockdown Techniques ; Humans ; Male ; Methylation ; Methyltransferases/genetics ; Mice ; Myocytes, Cardiac/physiology ; Protein Biosynthesis/genetics ; RNA, Messenger/genetics ; Rats
    Chemical Substances RNA, Messenger ; Methyltransferases (EC 2.1.1.-) ; Mettl3 protein, mouse (EC 2.1.1.-) ; METTL3 protein, human (EC 2.1.1.62) ; Adenosine (K72T3FS567)
    Language English
    Publishing date 2019-04-09
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 2575-1077
    ISSN (online) 2575-1077
    DOI 10.26508/lsa.201800233
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: RNA stability controlled by m

    Rücklé, Cornelia / Körtel, Nadine / Basilicata, M Felicia / Busch, Anke / Zhou, You / Hoch-Kraft, Peter / Tretow, Kerstin / Kielisch, Fridolin / Bertin, Marco / Pradhan, Mihika / Musheev, Michael / Schweiger, Susann / Niehrs, Christof / Rausch, Oliver / Zarnack, Kathi / Keller Valsecchi, Claudia Isabelle / König, Julian

    Nature structural & molecular biology

    2023  Volume 30, Issue 8, Page(s) 1207–1215

    Abstract: ... are still under debate. Here we show that X-chromosomal transcripts have fewer m ...

    Abstract In mammals, X-chromosomal genes are expressed from a single copy since males (XY) possess a single X chromosome, while females (XX) undergo X inactivation. To compensate for this reduction in dosage compared with two active copies of autosomes, it has been proposed that genes from the active X chromosome exhibit dosage compensation. However, the existence and mechanisms of X-to-autosome dosage compensation are still under debate. Here we show that X-chromosomal transcripts have fewer m
    MeSH term(s) Male ; Female ; Animals ; Mice ; Methylation ; Dosage Compensation, Genetic ; X Chromosome/genetics ; Mammals/genetics ; RNA Stability
    Language English
    Publishing date 2023-05-18
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2126708-X
    ISSN 1545-9985 ; 1545-9993
    ISSN (online) 1545-9985
    ISSN 1545-9993
    DOI 10.1038/s41594-023-00997-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Author Correction: RNA stability controlled by m

    Rücklé, Cornelia / Körtel, Nadine / Basilicata, M Felicia / Busch, Anke / Zhou, You / Hoch-Kraft, Peter / Tretow, Kerstin / Kielisch, Fridolin / Bertin, Marco / Pradhan, Mihika / Musheev, Michael / Schweiger, Susann / Niehrs, Christof / Rausch, Oliver / Zarnack, Kathi / Keller Valsecchi, Claudia Isabelle / König, Julian

    Nature structural & molecular biology

    2023  Volume 30, Issue 10, Page(s) 1607

    Language English
    Publishing date 2023-07-06
    Publishing country United States
    Document type Published Erratum
    ZDB-ID 2126708-X
    ISSN 1545-9985 ; 1545-9993
    ISSN (online) 1545-9985
    ISSN 1545-9993
    DOI 10.1038/s41594-023-01053-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Postural-respiratory function of the diaphragm assessed by M-mode ultrasonography.

    Sembera, Martin / Busch, Andrew / Kobesova, Alena / Hanychova, Barbora / Sulc, Jan / Kolar, Pavel

    PloS one

    2022  Volume 17, Issue 10, Page(s) e0275389

    Abstract: ... examination of the diaphragm using M-mode ultrasonography, spirometry, and abdominal wall tension (AWT ...

    Abstract Objectives: The diaphragm changes position and respiratory excursions during postural loading. However, it is unclear how it reacts to lifting a load while breath-holding or breathing with simultaneous voluntary contraction of the abdominal muscles (VCAM). This study analyzed diaphragm motion in healthy individuals during various postural-respiratory situations.
    Methods: 31 healthy participants underwent examination of the diaphragm using M-mode ultrasonography, spirometry, and abdominal wall tension (AWT) measurements. All recordings were performed simultaneously during three consecutive scenarios, i.e., 1. Lifting a load without breathing; 2. Lifting a load and breathing naturally; 3. Lifting a load and breathing with simultaneous VCAM.
    Results: Using paired-samples t-tests, lifting a load without breathing displaced the diaphragm's expiratory position more caudally (P < .001), with no change noted in the inspiratory position (P = .373). During lifting a load breathing naturally, caudal displacement of the diaphragm's inspiratory position was presented (P < .001), with no change noted in the expiratory position (P = 0.20) compared to tidal breathing. Total diaphragm excursion was greater when loaded (P = .002). Lifting a load and breathing with VCAM demonstrated no significant changes in diaphragm position for inspiration, expiration, or total excursion compared to natural loaded breathing. For all scenarios, AWT measures were greater when lifting a load (P < .001).
    Conclusion: In healthy individuals, caudal displacement and greater excursions of the diaphragm occurred when lifting a load. The postural function of the diaphragm is independent of its respiratory activity and is not reduced by the increase in AWT.
    MeSH term(s) Diaphragm/diagnostic imaging ; Diaphragm/physiology ; Exhalation ; Humans ; Muscle Contraction ; Respiration ; Ultrasonography
    Language English
    Publishing date 2022-10-10
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0275389
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: The SARS-CoV-2 main protease M

    Wenzel, Jan / Lampe, Josephine / Müller-Fielitz, Helge / Schuster, Raphael / Zille, Marietta / Müller, Kristin / Krohn, Markus / Körbelin, Jakob / Zhang, Linlin / Özorhan, Ümit / Neve, Vanessa / Wagner, Julian U G / Bojkova, Denisa / Shumliakivska, Mariana / Jiang, Yun / Fähnrich, Anke / Ott, Fabian / Sencio, Valentin / Robil, Cyril /
    Pfefferle, Susanne / Sauve, Florent / Coêlho, Caio Fernando Ferreira / Franz, Jonas / Spiecker, Frauke / Lembrich, Beate / Binder, Sonja / Feller, Nina / König, Peter / Busch, Hauke / Collin, Ludovic / Villaseñor, Roberto / Jöhren, Olaf / Altmeppen, Hermann C / Pasparakis, Manolis / Dimmeler, Stefanie / Cinatl, Jindrich / Püschel, Klaus / Zelic, Matija / Ofengeim, Dimitry / Stadelmann, Christine / Trottein, François / Nogueiras, Ruben / Hilgenfeld, Rolf / Glatzel, Markus / Prevot, Vincent / Schwaninger, Markus

    Nature neuroscience

    2021  Volume 24, Issue 11, Page(s) 1522–1533

    Abstract: ... We obtained evidence that brain endothelial cells are infected and that the main protease of SARS-CoV-2 (M ...

    Abstract Coronavirus disease 2019 (COVID-19) can damage cerebral small vessels and cause neurological symptoms. Here we describe structural changes in cerebral small vessels of patients with COVID-19 and elucidate potential mechanisms underlying the vascular pathology. In brains of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-infected individuals and animal models, we found an increased number of empty basement membrane tubes, so-called string vessels representing remnants of lost capillaries. We obtained evidence that brain endothelial cells are infected and that the main protease of SARS-CoV-2 (M
    MeSH term(s) Animals ; Blood-Brain Barrier/metabolism ; Blood-Brain Barrier/pathology ; Brain/metabolism ; Brain/pathology ; Chlorocebus aethiops ; Coronavirus 3C Proteases/genetics ; Coronavirus 3C Proteases/metabolism ; Cricetinae ; Female ; Humans ; Intracellular Signaling Peptides and Proteins/genetics ; Intracellular Signaling Peptides and Proteins/metabolism ; Male ; Mesocricetus ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Mice, Transgenic ; Microvessels/metabolism ; Microvessels/pathology ; SARS-CoV-2/genetics ; SARS-CoV-2/metabolism ; Vero Cells
    Chemical Substances Intracellular Signaling Peptides and Proteins ; NEMO protein, mouse ; Coronavirus 3C Proteases (EC 3.4.22.28)
    Language English
    Publishing date 2021-10-21
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1420596-8
    ISSN 1546-1726 ; 1097-6256
    ISSN (online) 1546-1726
    ISSN 1097-6256
    DOI 10.1038/s41593-021-00926-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Global REACH: Assessment of Brady-Arrhythmias in Andeans and Lowlanders During Apnea at 4330 m.

    Busch, Stephen A / van Diepen, Sean / Steele, Andrew R / Meah, Victoria L / Simpson, Lydia L / Figueroa-Mujíca, Rómulo J / Vizcardo-Galindo, Gustavo / Villafuerte, Francisco C / Tymko, Michael M / Ainslie, Philip N / Moore, Jonathan P / Stembridge, Mike / Steinback, Craig D

    Frontiers in physiology

    2020  Volume 10, Page(s) 1603

    Abstract: Background: ...

    Abstract Background:
    Language English
    Publishing date 2020-01-22
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2564217-0
    ISSN 1664-042X
    ISSN 1664-042X
    DOI 10.3389/fphys.2019.01603
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Development and evaluation of antibody-capture immunoassays for detection of Lassa virus nucleoprotein-specific immunoglobulin M and G.

    Gabriel, Martin / Adomeh, Donatus I / Ehimuan, Jacqueline / Oyakhilome, Jennifer / Omomoh, Emmanuel O / Ighodalo, Yemisi / Olokor, Thomas / Bonney, Kofi / Pahlmann, Meike / Emmerich, Petra / Lelke, Michaela / Brunotte, Linda / Ölschläger, Stephan / Thomé-Bolduan, Corinna / Becker-Ziaja, Beate / Busch, Carola / Odia, Ikponmwosa / Ogbaini-Emovon, Ephraim / Okokhere, Peter O /
    Okogbenin, Sylvanus A / Akpede, George O / Schmitz, Herbert / Asogun, Danny A / Günther, Stephan

    PLoS neglected tropical diseases

    2018  Volume 12, Issue 3, Page(s) e0006361

    Abstract: Background: The classical method for detection of Lassa virus-specific antibodies is the immunofluorescence assay (IFA) using virus-infected cells as antigen. However, IFA requires laboratories of biosafety level 4 for assay production and an ... ...

    Abstract Background: The classical method for detection of Lassa virus-specific antibodies is the immunofluorescence assay (IFA) using virus-infected cells as antigen. However, IFA requires laboratories of biosafety level 4 for assay production and an experienced investigator to interpret the fluorescence signals. Therefore, we aimed to establish and evaluate enzyme-linked immunosorbent assays (ELISA) using recombinant Lassa virus nucleoprotein (NP) as antigen.
    Methodology/principal findings: The IgM ELISA is based on capturing IgM antibodies using anti-IgM, and the IgG ELISA is based on capturing IgG antibody-antigen complexes using rheumatoid factor or Fc gamma receptor CD32a. Analytical and clinical evaluation was performed with 880 sera from Lassa fever endemic (Nigeria) and non-endemic (Ghana and Germany) areas. Using the IFA as reference method, we observed 91.5-94.3% analytical accuracy of the ELISAs in detecting Lassa virus-specific antibodies. Evaluation of the ELISAs for diagnosis of Lassa fever on admission to hospital in an endemic area revealed a clinical sensitivity for the stand-alone IgM ELISA of 31% (95% CI 25-37) and for combined IgM/IgG detection of 26% (95% CI 21-32) compared to RT-PCR. The specificity of IgM and IgG ELISA was estimated at 96% (95% CI 93-98) and 100% (95% CI 99-100), respectively, in non-Lassa fever patients from non-endemic areas. In patients who seroconverted during follow-up, Lassa virus-specific IgM and IgG developed simultaneously rather than sequentially. Consistent with this finding, isolated IgM reactivity, i.e. IgM in the absence of IgG, had no diagnostic value.
    Conclusions/significance: The ELISAs are not equivalent to RT-PCR for early diagnosis of Lassa fever; however, they are of value in diagnosing patients at later stage. The IgG ELISA may be useful for epidemiological studies and clinical trials due its high specificity, and the higher throughput rate and easier operation compared to IFA.
    MeSH term(s) Antibodies, Viral/blood ; Enzyme-Linked Immunosorbent Assay/methods ; Fluorescent Antibody Technique, Indirect ; Germany/epidemiology ; Ghana/epidemiology ; Humans ; Immunoglobulin G/blood ; Immunoglobulin M/blood ; Lassa Fever/diagnosis ; Lassa Fever/epidemiology ; Lassa Fever/immunology ; Lassa virus/immunology ; Lassa virus/isolation & purification ; Nigeria/epidemiology ; Nucleoproteins/genetics ; Nucleoproteins/immunology ; RNA, Viral/blood ; Sensitivity and Specificity
    Chemical Substances Antibodies, Viral ; Immunoglobulin G ; Immunoglobulin M ; Nucleoproteins ; RNA, Viral
    Language English
    Publishing date 2018
    Publishing country United States
    Document type Evaluation Studies ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2429704-5
    ISSN 1935-2735 ; 1935-2727
    ISSN (online) 1935-2735
    ISSN 1935-2727
    DOI 10.1371/journal.pntd.0006361
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Conference proceedings: HANNA: Real-World Daten (RWD) der Behandlung mit Nivolumab (NIVO) bei Patienten mit rezidivierten oder metastasierten (R/M) Plattenepithelkarzinomen des Kopf-Hals-Bereichs (SCCHN) in Deutschland

    Busch, C-J / von der Heyde, E / Hahn, D / Langer, C / Müller-Huesmann, H / Kubuschok, B / Beutner, D / Klautke, G / Mauz, P-S / von der Grün, J / Büntzel, J / Riera-Knorrenschild, J / Tamaskovics, B / Welslau, M / Gauler, T / Waldenberger, D / Dietz, A

    Laryngo-Rhino-Otologie

    2021  Volume 100, Issue S 02

    Event/congress 100 JAHRE DGHNO-KHC: WO KOMMEN WIR HER? WO STEHEN WIR? WO GEHEN WIR HIN?, HNO-Online-Kongress, 2021-05-12
    Language German
    Publishing date 2021-05-01
    Publisher Georg Thieme Verlag KG
    Publishing place Stuttgart ; New York
    Document type Article ; Conference proceedings
    ZDB-ID 96005-6
    ISSN 1438-8685 ; 0935-8943 ; 0340-1588
    ISSN (online) 1438-8685
    ISSN 0935-8943 ; 0340-1588
    DOI 10.1055/s-0041-1727874
    Database Thieme publisher's database

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  9. Article ; Online: Chemoreflex mediated arrhythmia during apnea at 5,050 m in low- but not high-altitude natives.

    Busch, Stephen A / Davies, Hannah / van Diepen, Sean / Simpson, Lydia L / Sobierajski, Frances / Riske, Laurel / Stembridge, Mike / Ainslie, Philip N / Willie, Christopher K / Hoiland, Ryan / Moore, Jonathan P / Steinback, Craig D

    Journal of applied physiology (Bethesda, Md. : 1985)

    2017  Volume 124, Issue 4, Page(s) 930–937

    Abstract: ... unmasks arrhythmia at low (344 m) and high (5,050 m) altitude, 2) high-altitude natives (Nepalese Sherpa ... n = 8; age = 32 ± 11 yr). Lowlanders were assessed at 344 and 5,050 m, whereas Sherpa were assessed ... at 5,050 m. Heart rate (HR) and rhythm (lead II ECG) were recorded during rest and voluntary end ...

    Abstract Peripheral chemoreflex mediated increases in both parasympathetic and sympathetic drive under chronic hypoxia may evoke bradyarrhythmias during apneic periods. We determined whether 1) voluntary apnea unmasks arrhythmia at low (344 m) and high (5,050 m) altitude, 2) high-altitude natives (Nepalese Sherpa) exhibit similar cardiovagal responses at altitude, and 3) bradyarrhythmias at altitude are partially chemoreflex mediated. Participants were grouped as Lowlanders ( n = 14; age = 27 ± 6 yr) and Nepalese Sherpa ( n = 8; age = 32 ± 11 yr). Lowlanders were assessed at 344 and 5,050 m, whereas Sherpa were assessed at 5,050 m. Heart rate (HR) and rhythm (lead II ECG) were recorded during rest and voluntary end-expiratory apnea. Peripheral chemoreflex contributions were assessed in Lowlanders ( n = 7) at altitude after 100% oxygen. Lowlanders had higher resting HR at altitude (70 ± 15 vs. 61 ± 15 beats/min; P < 0.01) that was similar to Sherpa (71 ± 5 beats/min; P = 0.94). High-altitude apnea caused arrhythmias in 11 of 14 Lowlanders [junctional rhythm ( n = 4), 3° atrioventricular block ( n = 3), sinus pause ( n = 4)] not present at low altitude and larger marked bradycardia (nadir -39 ± 18 beats/min; P < 0.001). Sherpa exhibited a reduced bradycardia response during apnea compared with Lowlanders ( P < 0.001) and did not develop arrhythmias. Hyperoxia blunted bradycardia (nadir -10 ± 14 beats/min; P < 0.001 compared with hypoxic state) and reduced arrhythmia incidence (3 of 7 Lowlanders). Degree of bradycardia was significantly related to hypoxic ventilatory response (HVR) at altitude and predictive of arrhythmias ( P < 0.05). Our data demonstrate apnea-induced bradyarrhythmias in Lowlanders at altitude but not in Sherpa (potentially through cardioprotective phenotypes). The chemoreflex is an important mechanism in genesis of bradyarrhythmias, and the HVR may be predictive for identifying individual susceptibility to events at altitude. NEW & NOTEWORTHY The peripheral chemoreflex increases both parasympathetic and sympathetic drive under chronic hypoxia. We found that this evoked bradyarrhythmias when combined with apneic periods in Lowlanders at altitude, which become relieved through supplemental oxygen. In contrast, high-altitude residents (Nepalese Sherpa) do not exhibit bradyarrhythmias during apnea at altitude through potential cardioprotective adaptations. The degree of bradycardia and bradyarrhythmias was related to the hypoxic ventilatory response, demonstrating that the chemoreflex plays an important role in these findings.
    MeSH term(s) Adaptation, Physiological ; Adult ; Altitude ; Aortic Bodies/physiology ; Apnea/complications ; Arrhythmias, Cardiac/etiology ; Bradycardia/etiology ; Female ; Hemodynamics ; Humans ; Male ; Wakefulness ; Young Adult
    Language English
    Publishing date 2017-12-21
    Publishing country United States
    Document type Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 219139-8
    ISSN 1522-1601 ; 0021-8987 ; 0161-7567 ; 8750-7587
    ISSN (online) 1522-1601
    ISSN 0021-8987 ; 0161-7567 ; 8750-7587
    DOI 10.1152/japplphysiol.00774.2017
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  10. Article ; Conference proceedings: HANNA – Real-World Daten der Effektivität und Sicherheit von Nivolumab bei Patienten mit rezidivierten oder metastasierten (R/M) Plattenepithelkarzinomen des Kopf-Hals-Bereichs (SCCHN) in Deutschland

    Busch, Chia-Jung / von der Heyde, E / Welslau, M / Hahn, D / Bockmühl, U / Langer, C / Müller-Huesmann, H / Gauler, T / Waldenberger, D / Dietz, A

    Laryngo-Rhino-Otologie

    2020  Volume 99, Issue S 02

    Event/congress Abstract- und Posterband - 91. Jahresversammlung der Deutschen Gesellschaft für HNO-Heilkunde, Kopf- und Hals-Chirurgie e.V., Bonn - Welche Qualität macht den Unterschied, Estrel Congress Center Berlin, 2020-05-20
    Language German
    Publishing date 2020-05-01
    Publisher © Georg Thieme Verlag KG
    Publishing place Stuttgart ; New York
    Document type Article ; Conference proceedings
    ZDB-ID 96005-6
    ISSN 1438-8685 ; 0935-8943 ; 0340-1588
    ISSN (online) 1438-8685
    ISSN 0935-8943 ; 0340-1588
    DOI 10.1055/s-0040-1711580
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