Meta-Analysis of RNA-Seq Data Identifies Differentially Expressed Genes in Skeletal Muscle Between Obese and Normal Weight Individuals
Abstract
1. Introduction
2. Results
2.1. RNA-Seq Study Data Sources
2.2. Analysis of Differentially Expressed Genes
2.3. Gene Ontology Enrichment Analysis
2.4. Pathway Enrichment Analysis of Differentially Expressed Genes
3. Discussion
4. Materials and Methods
4.1. Data Sources and Search Methodology
4.2. Study Inclusion and Exclusion Criteria
4.3. Differential Expression Analysis, Meta-Analysis, and Functional Enrichment
5. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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| Study | Dataset | Platform | Source | Samples | |
|---|---|---|---|---|---|
| Included | Excluded | ||||
| Study_1 | GSE137631 | Illumina NextSeq 500 (San Diego, CA, USA) | vastus lateralis muscle | 6 NW 1 + 12 OB 2 | 6 RYGB 3 + 6 Exercise 4 |
| Study_2 | GSE185957 | Illumina HiSeq 4000 | vastus lateralis muscle | 4 NW 1 + 4 OB 2 | 8 Exercise 5 |
| Study_3 | GSE231509 | Illumina NextSeq 550 | vastus lateralis muscle | 7 NW 1 + 7 OB 2 | 14 T2DM 6 + 14 MMTT 7 |
| Study_4 | GSE196387 | Illumina NovaSeq 6000 | vastus lateralis muscle | 6 NW 1 + 6 OB 2 | 6 T2DM |
| Study | Non-Obese | Obese | ||||||
|---|---|---|---|---|---|---|---|---|
| n | Sex (F/M) | Age (Years) | BMI (kg/m2) | n | Sex (F/M) | Age (Years) | BMI (kg/m2) | |
| GSE137631 | 6 | 6 F/0 M | 36.7 ± 5.4 | 22.7 ± 1.4 | 12 | 12 F/0 M | 38.4 ± 5.5 | 47.9 ± 6.1 |
| GSE185957 | 4 | 2 F/2 M | NR | 24 ± 2 | 4 | 4 F/0 M | NR | 37 ± 3 |
| GSE231509 | 7 | 3 F/4 M | 42.7 ± 9.0 | 22.3 ± 2.2 | 7 | 4 F/3 M | 37.1 ± 14.1 | 44.9 ± 7.4 |
| GSE196387 | 6 | 0 F/6 M | 34 ± 10 | 22.9 ± 2.0 | 6 | 5 F/1 M | 46 ± 7 | 36.2 ± 6.7 |
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Wang, Y.; Li, H.; Li, Y.; Kong, W.; Li, Y. Meta-Analysis of RNA-Seq Data Identifies Differentially Expressed Genes in Skeletal Muscle Between Obese and Normal Weight Individuals. Int. J. Mol. Sci. 2026, 27, 2677. https://doi.org/10.3390/ijms27062677
Wang Y, Li H, Li Y, Kong W, Li Y. Meta-Analysis of RNA-Seq Data Identifies Differentially Expressed Genes in Skeletal Muscle Between Obese and Normal Weight Individuals. International Journal of Molecular Sciences. 2026; 27(6):2677. https://doi.org/10.3390/ijms27062677
Chicago/Turabian StyleWang, Yuhao, Han Li, Yixuan Li, Wen Kong, and Yuming Li. 2026. "Meta-Analysis of RNA-Seq Data Identifies Differentially Expressed Genes in Skeletal Muscle Between Obese and Normal Weight Individuals" International Journal of Molecular Sciences 27, no. 6: 2677. https://doi.org/10.3390/ijms27062677
APA StyleWang, Y., Li, H., Li, Y., Kong, W., & Li, Y. (2026). Meta-Analysis of RNA-Seq Data Identifies Differentially Expressed Genes in Skeletal Muscle Between Obese and Normal Weight Individuals. International Journal of Molecular Sciences, 27(6), 2677. https://doi.org/10.3390/ijms27062677

