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Environ Toxicol Pharmacol. 2013 Sep;36(2):437-42. doi: 10.1016/j.etap.2013.04.015. Epub 2013 May 22.

Study on osteogenesis promoted by low sound pressure level infrasound in vivo and some underlying mechanisms.

Author information

1
Department of Orthopaedics, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, PR China. longhuadr@gmail.com

Erratum in

  • Environ Toxicol Pharmacol. 2014 Mar;37(2):895.

Abstract

To clarify the effects of low sound pressure level (LSPL) infrasound on local bone turnover and explore its underlying mechanisms, femoral defected rats were stabilized with a single-side external fixator. After exposure to LSPL infrasound for 30min twice everyday for 6 weeks, the pertinent features of bone healing were assessed by radiography, peripheral quantitative computerized tomography (pQCT), histology and immunofluorescence assay. Infrasound group showed a more consecutive and smoother process of fracture healing and modeling in radiographs and histomorphology. It also showed significantly higher average bone mineral content (BMC) and bone mineral density (BMD). Immunofluorescence showed increased expression of calcitonin gene related peptide (CGRP) and decreased Neuropeptide Y (NPY) innervation in microenvironment. The results suggested the osteogenesis promotion effects of LSPL infrasound in vivo. Neuro-osteogenic network in local microenvironment was probably one target mediating infrasonic osteogenesis, which might provide new strategy to accelerate bone healing and remodeling.

KEYWORDS:

CGRP; Infrasound; Innervation; NPY; Neuro-osteogenic network; Osteogenesis

PMID:
23770453
DOI:
10.1016/j.etap.2013.04.015
[Indexed for MEDLINE]

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