期刊
AMERICAN JOURNAL OF SPORTS MEDICINE
卷 51, 期 7, 页码 1831-1843出版社
SAGE PUBLICATIONS INC
DOI: 10.1177/03635465231167860
关键词
Achilles tendon; apoptosis; irreversible electroporation; tendinopathy; tendon healing; tenocyte regeneration
IRE enhanced tendon tissue healing and blood supply, potentially reducing neuropathic pain, in a rat model of collagenase-induced Achilles tendinopathy.
Background: Treatment of painful chronic tendinopathy is challenging, and there is an urgent need to develop new regenerative methods. Irreversible electroporation (IRE) can lead to localized cell ablation by electrical pulses and induce new cell and tissue growth. Previously, the authors' group reported that electroporation-ablated tendons fully regenerated. Purpose: To assess the efficiency of IRE in improving tendon healing using a collagenase-induced Achilles tendinopathy rat model. Study Design: Controlled laboratory study. Methods: After screening for the IRE ablation parameters, a collagenase-induced Achilles tendinopathy rat model was used to assess the efficacy of IRE in improving tendon healing via biomechanical, behavioral, histological, and immunofluorescence assessments. Results: The experiments showed that the parameter of 875 V/cm 180 pulses could ablate most tenocytes, and apoptosis was the main type of death in vitro. In vivo, IRE promoted the healing process of chronic tendinopathy in the Achilles tendon of rats, based on biomechanical, behavioral, and histological assessments. Finally, immunofluorescence results revealed that IRE improved blood supply in the early stages of tendon repair and could potentially reduce neuropathic pain. Conclusion: IRE enhanced tendon tissue healing in a rat model of collagenase-induced Achilles tendinopathy.
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