A single-pulsed electromagnetic field enhances collagen synthesis in tendon cells

Chih Chun Lin, Po Ting Wu, Chih Wei Chang, Ru Wei Lin, Gwo Jaw Wang, I. Ming Jou, Kuo An Lai

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Tendinopathy is a progressive pathology of tendon that is characteristic of imbalance between matrix synthesis and degeneration and is often caused by failure to adapt to mechanical loading. Non-steroidal anti-inflammatory medications (NSAIDS) are used as a conventional treatment to alleviate pain and swelling in the short term, but the ideal treatment for tendinopathy remains unclear. Here, we show a single pulsed electromagnetic field (SPEMF, 0.2 Hz) that up-regulated tenogenic gene expression (Col1a1, Col3a1, Scx, Dcn) and down-regulated inflammatory gene expression (Mmp1) in vitro. After five days of SPEMF stimulation (3 min/day), the collagen type I and total collagen synthesis protein levels were significantly increased. Under pro-inflammatory cytokine (IL-1β) irritation, the decreased expression of Col1a1/Col3a1 was up-regulated by SPEMF treatment, and the increased expression of Mmp1 was also reversed. From the above, it can be inferred that SPEMF that enhances matrix synthesis and reduces matrix degeneration may counteract the imbalance in tendinopathy. SPEMF application may be developed as a potential future strategy for therapeutic intervention in tendon disorders.

Original languageEnglish
Pages (from-to)130-136
Number of pages7
JournalMedical Engineering and Physics
Publication statusPublished - 2020 Mar

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Biomedical Engineering


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