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In Vitro Biomechanical Strain Regulation of Fibroblast Wound Healing by Thanh V. Cao; Michael R. Hicks; Paul R. Standley is a Medicine article available to read on EtoBox.

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## Abstract **Context:**Strain-directed therapy such as vacuum compression and manual manipulative therapies are clinically effective, but their cellular and molecular mechanisms are not well understood. **Objective:**To determine the effects of modeled myofascial release (MFR) on fibroblast wound healing and to investigate the potential role of nitric oxide (NO) in mediating these responses. **Methods:**Using an in vitro scratch wound strain model, the authors investigated human fibroblast wound healing characteristics in response to injurious repetitive motion strain (RMS) and MFR. Secretion of NO was induced with interleukin-1β and sodium nitroprusside and inhibited with NO synthase inhibitor L-N^G^-monomethyl arginine citrate (L-NMMA) to determine the effects of NO on wound healing. Protein microarray was also performed to evaluate the expression of intracellular protein and activation of protein kinase G (PKG), extracellular signal-regulated kinase (ERK1/2), protein kinase C (PKC), and phosphoinositide 3-kinase (PI3K), the downstream effectors in the NO pathway. **Results:**Fibroblasts that received RMS resulted in reduced wound closure rates (vs nonstrain,__P__<.05), which ar

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Author

Thanh V. Cao; Michael R. Hicks; Paul R. Standley

Publisher

Walter de Gruyter GmbH

Published

2013

Language

EN

Field

Medicine (Health Sciences)