Author

R. A. Kumar

Listed by name: these papers carry no ORCID for this author, so different people with the same name may be mixed together.

Biology Disciplines

Click to filter author papers

Physiology· 2 Biochemistry· 1 Cell Biology· 1

Signature Assays, Organisms & Methods

Click to filter · or open tag

Approach:experimental assay· 4 Organism:human· 3 Research Focus:metabolism & bioenergetics· 3 Assay:bulk RNA-seq· 2 Research Focus:cell type annotation· 2 Assay:ATAC-seq· 1 Research Focus:cancer & tumor microenvironment· 1 Research Focus:differential expression· 1

Frequent Co-Authors

T. E. Ryan· 2 shared A. Andren· 1 shared A. Guha· 1 shared A. M. Shah· 1 shared A. Shamoun· 1 shared Anna ZoccaratoiD· 1 shared C. A. Lyssiotis· 1 shared C. K. Takemura-James· 1 shared

Activity by Year

2022-2026 · peak 2/yr

Co-Author Collaboration Network

10 top collaborators · 14 mutual co-author links

Click any collaborator node to inspect or filter shared papers

Focal author (center)Selected co-authorORCID co-authorUnlinked name

Curved chords = mutual co-authorship

2 shared papersPhysiology

T. E. Ryan

Mutual co-authors in cluster

Author profile →

4 papers

Recent·Most cited

Genome-scale modelling and stable isotope tracing reveal dynamic metabolic reprogramming in a human cardiac hypertrophy model

C. K. Takemura-James, K. Kmiotek-Caller, R. A. Kumar, E. dos Santos, R. R. Oexner, C. M. Reumiller, S. Verma, E. Bauwens, E. Kiaitsi, C. X. C. Santos, K. Streckfuss-Boemeke, A. M. Shah, Anna Zoccarato

The paper uses genome-scale modelling and stable isotope tracing to study metabolic changes in human cardiac hypertrophy models.

bioRxiv · Nov 9, 2026 · PreprintCell Biology

H2S preconditioning induces long-lived perturbations in O2 metabolism

D. A. Hanna, J. Diessl, A. Guha, R. A. Kumar, A. Andren, C. A. Lyssiotis, R. Banerjee

This study shows that H2S preconditioning causes long-lasting changes in O2 metabolism, including increased P50(O2) and metabolic memory effects lasting up to 24-48 hours.

bioRxiv · Oct 20, 2023 · PreprintBiochemistry

Skeletal muscle Nox4 knockout prevents and Nox2 knockout blunts loss of maximal diaphragm force in mice with heart failure with reduced ejection fraction

R. A. Kumar, D. Hahn, R. C. Kelley, D. R. Muscato, A. Shamoun, N. Curbelo-Bermudez, W. G. Butler, S. Yegorova, T. E. Ryan, L. Ferreira

This study shows that Nox4 knockout prevents diaphragm force loss in HFrEF mice, while Nox2 knockout provides partial protection and improves survival after myocardial infarction.

bioRxiv · May 27, 2022Physiology

Reversible thiol oxidation increases mitochondrial electron transport complex enzyme activity but not respiration in cardiomyocytes from patients with end-stage heart failure

R. A. Kumar, T. Thome, O. Sharaf, T. E. Ryan, G. Arnaoutakis, E. I. Jeng, L. F. Ferreira

bioRxiv · May 27, 2022Physiology