Evidence map›Paper›PMID 40578352›Full record

ArticleStem cell reports2025

Microgravity accelerates skeletal muscle degeneration: Functional and transcriptomic insights from an ISS muscle lab-on-chip model.

Maddalena Parafati, Zon Thwin, Legrand K Malany, Paul M Coen, Siobhan Malany

Abstract read
In one paragraph

Article in Stem cell reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Maddalena ParafatiDepartment of Cellular and Systems Pharmacology, College of Pharmacy, University of Florida, Gainesville, FL 32610, USA. Electronic address: mparafati@ufl.edu.
Zon ThwinDepartment of Cellular and Systems Pharmacology, College of Pharmacy, University of Florida, Gainesville, FL 32610, USA.
Legrand K MalanyMicro-gRx, INC, Orlando, FL 32827, USA.
Paul M CoenTranslational Research Institute, AdventHealth, Orlando, FL 32804, USA.
Siobhan MalanyDepartment of Cellular and Systems Pharmacology, College of Pharmacy, University of Florida, Gainesville, FL 32610, USA. Electronic address: smalany@ufl.edu.

Funding

Electrical Stimulation of Human Myocytes in Microgravity: An In Vitro Model to Evaluate Therapeutics to Counteract Muscle WastingUH3TR002598 · NCATS · UNIVERSITY OF FLORIDA · PI MALANY, SIOBHAN · 2020 to 2021
$1.0M
Electrical Stimulation of Human Myocytes in Microgravity: An In Vitro Model to Evaluate Therapeutics to Counteract Muscle WastingUG3TR002598 · NCATS · UNIVERSITY OF FLORIDA · PI MALANY, SIOBHAN · 2018 to 2019
$1.0M
NCATS NIH HHS UG3 TR002598NCATS NIH HHS UH3 TR002598
6 · The paper itself

Abstract

Microgravity accelerates skeletal muscle degeneration, mimicking aspects of aging, yet its effects on muscle cell function remain underexplored. Using a muscle lab-on-chip model onboard the International Space Station (ISS), we examined 3D-bioengineered myobundles derived from young and older adult donors under microgravity. Electrical stimulation applied intermittently to the myobundles revealed reduced contraction magnitude in microgravity and decreased protein levels of myosin heavy chain 7, a main isoform in slow-twitch muscle fibers. Transcriptomic profiling revealed active myogenesis across ground and spaceflight samples, but younger electrically stimulated myobundles displayed enhanced mitochondrial-related gene expression in microgravity, while older and non-electrically stimulated myobundles were less responsive. Comparative analysis between young and older derived myobundles identified 86 muscle-specific age-associated genes altered in microgravity, linked to inflammation, mitochondrial dysfunction, and cellular stress. These findings highlight a unique age-related molecular response in microgravity and underscores electrical stimulation as a potential countermeasure. These insights advance our understanding of muscle aging and degeneration in microgravity, guiding future therapeutic strategies.

Indexed as

Lab-On-A-Chip DevicesMuscle, SkeletalTranscriptomeWeightlessnessAdultAgedAgingGene Expression ProfilingHumansMaleMuscle DevelopmentMuscle Fibers, SkeletalSpace Flightage-related muscle wastingcontractile magnitudedonor-derived primary myobundleselectrical stimulationglobal transcriptomicsmuscle microphysiological systemreal microgravity

Identifiers

PMID40578352
PMCPMC12277833

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.