Observations of nemaline bodies in muscle biopsies of critically ill patients infected with SARS-CoV-2
© The Author(s) 2023. Published by Oxford University Press on behalf of The Japanese Society of Microscopy. All rights reserved. For permissions, please e-mail: journals.permissionsoup.com..
Patients infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) who have been admitted to the intensive care unit (ICU) often face months of physical disability after discharge. To optimize recovery, it is important to understand the role of musculoskeletal alterations in critically ill patients infected with SARS-CoV-2. The main aim of the present study was to describe the presence and morphology of nemaline bodies found in the skeletal muscle tissue from critically ill patients infected with SARS-CoV-2. In n = 7 patients infected with SARS-CoV-2, ultrastructural characteristics of vastus lateralis muscle obtained on days 1-3 and days 5-8 following ICU admission were investigated in more detail with electron microscopy. Those muscle biopsies consistently showed variable degrees of myofiber necrosis and myofibrillar disorganization. In 4/7 (57%) patients on days 5-8, the Z-line material accumulated into nemaline bodies with a typical lattice-like appearance at higher magnification, similar to that found in nemaline myopathy. This study is the first to describe the disintegration of myofibrils and the accumulation of Z-line material into nemaline bodies in the skeletal muscle tissue obtained from critically ill coronavirus disease-19 patients following ICU admission, which should be interpreted primarily as a non-specific pathological response of extreme myofibrillar disintegration associated with myofiber necrosis.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:72 |
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| Enthalten in: |
Microscopy (Oxford, England) - 72(2023), 5 vom: 09. Okt., Seite 388-394 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Vandenabeele, Frank [VerfasserIn] |
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| Links: |
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| Themen: |
Critical illness |
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| Anmerkungen: |
Date Completed 10.10.2023 Date Revised 18.10.2023 published: Print Citation Status MEDLINE |
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| doi: |
10.1093/jmicro/dfac072 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM350856869 |
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| 520 | |a © The Author(s) 2023. Published by Oxford University Press on behalf of The Japanese Society of Microscopy. All rights reserved. For permissions, please e-mail: journals.permissionsoup.com. | ||
| 520 | |a Patients infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) who have been admitted to the intensive care unit (ICU) often face months of physical disability after discharge. To optimize recovery, it is important to understand the role of musculoskeletal alterations in critically ill patients infected with SARS-CoV-2. The main aim of the present study was to describe the presence and morphology of nemaline bodies found in the skeletal muscle tissue from critically ill patients infected with SARS-CoV-2. In n = 7 patients infected with SARS-CoV-2, ultrastructural characteristics of vastus lateralis muscle obtained on days 1-3 and days 5-8 following ICU admission were investigated in more detail with electron microscopy. Those muscle biopsies consistently showed variable degrees of myofiber necrosis and myofibrillar disorganization. In 4/7 (57%) patients on days 5-8, the Z-line material accumulated into nemaline bodies with a typical lattice-like appearance at higher magnification, similar to that found in nemaline myopathy. This study is the first to describe the disintegration of myofibrils and the accumulation of Z-line material into nemaline bodies in the skeletal muscle tissue obtained from critically ill coronavirus disease-19 patients following ICU admission, which should be interpreted primarily as a non-specific pathological response of extreme myofibrillar disintegration associated with myofiber necrosis | ||
| 650 | 4 | |a Journal Article | |
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| 700 | 1 | |a Stevens, Sjoerd |e verfasserin |4 aut | |
| 700 | 1 | |a Snijders, Tim |e verfasserin |4 aut | |
| 700 | 1 | |a Stessel, Björn |e verfasserin |4 aut | |
| 700 | 1 | |a Dubois, Jasperina |e verfasserin |4 aut | |
| 700 | 1 | |a van Loon, Luc J C |e verfasserin |4 aut | |
| 700 | 1 | |a Lambrichts, Ivo |e verfasserin |4 aut | |
| 700 | 1 | |a Agten, Anouk |e verfasserin |4 aut | |
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