ArticleJournal of cachexia, sarcopenia and muscle2026
Association Between Abnormal DNA Methylation and Altered Transcriptome in Muscle Five Years After Critical Illness.
Article in Journal of cachexia, sarcopenia and muscle, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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Who cites it
3 citing papers in PubMed.
- Epigenetic Aging of Critical Illness Survivors Assessed by the Muscle-Specific "Clock" and Its Relationship With Reduced Long-Term Muscle Strength.Aging cell · 2026Article
- Unravelling Sarcopenia in Chronic Kidney Disease: From Pathogenesis to Diagnosis and Therapeutics.Diagnostics (Basel, Switzerland) · 2026Review
- Association Between Abnormal DNA Methylation and Altered Transcriptome in Muscle Five Years After Critical Illness.Journal of cachexia, sarcopenia and muscle · 2026Article
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Authors and funding
5 authors.
Funding
Abstract
backgroundCritically ill patients requiring intensive care unit (ICU) admission suffer from muscle weakness that persists for years. Recently, altered RNA expression was documented in muscle of former ICU patients 5 years after critical illness that suggested disrupted mitochondrial function, disturbed lipid metabolism and fibrosis, of which many associated with the former patients' long-term loss of muscle strength. We hypothesized that abnormal DNA methylation detectable years after critical illness associates with these abnormal RNA expression patterns, as a potential biological basis for the persistent loss of muscle strength.
methodsGenome-wide DNA methylation was assessed (Infiniumv2-HumanMethylationEPIC-BeadChips) in skeletal muscle biopsies from 118 former ICU patients harvested 5 years after critical illness (79.6% male, median 58 years, median BMI 27.3 kg/m
resultsAs compared with controls, former ICU patients showed 7379 DMPs (average difference 2.6% ranging up to 24.9%). They were associated with 1334 unique genes, enriched for muscle contraction, vascular development, cell differentiation and signal transduction. DMPs correlated more strongly with differentially expressed RNAs (DERNAs) than with non-differentially expressed RNAs (18.1% vs. 1.7% correlations with |rho| > 0.3, p < 2.2 × 10
conclusionsAbnormal DNA methylation in muscle biopsied 5 years after critical illness associated with long-term altered RNA expression that has been linked to lower muscle strength. These data suggest a possible epigenetic basis for this long-term sequel after critical illness. Abnormal DNA methylation was also found to associate with (possibly) avoidable risk factors during and after ICU stay. These findings may open perspectives for prevention and possibly treatment of long-term muscle weakness after critical illness.
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