Age-related nitration/dysfunction of myogenic stem cell activator HGF.

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"CONFLICT OF INTEREST STATEMENT The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest."

"FUNDING INFORMATION This work was supported by Grants‐in‐Aid for Challenging Exploratory Research, Scientific Research (B), and International Research Fellow from the Japan Society for the Promotion of Science (JSPS KAKENHI Grant Numbers JP26660218, JP21H02347, and JP22F22389, respectively) (all to R. Tatsumi). The research was also supported in part by grant funds from the SEI Group CSR Foundation, the Ito Foundation, and the Uehara Memorial Foundation (all to R. Tatsumi). A. Elgaabari was supported by the Egypt‐Japan Education Partnership (EJEP), a full Ph.D. scholarship from the Egyptian Ministry of Higher Education and JSPS Postdoctoral Fellowship for Research in Japan (Standard FY 2022; P22389) during the course of this research. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript, and did not provide support in the form of salaries for any authors."