Document Detail


Osteogenesis by pulsing electromagnetic fields (PEMFs): optimum stimulation setting.
MedLine Citation:
PMID:  8797039     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The optimum setting for electromagnetic stimulation was examined by histologically assessing the degree of osteogenesis at different settings of electromagnetic stimulation, and comparing alkaline phosphatase (ALP) activity in the bone marrow. For this experiment, an electromagnetic field generator manufactured by the Institute of Physical and Chemical Research was used. The intensity of the magnetic field was set at eight levels; 0.1, 0.2, 0.4, 1, 2, 4, 6 and 8 gauss (G). The frequencies used were 5, 10, 20, 50, 100 and 200 Hz. Pulse durations were 6, 12, 25, 50 and 100 micro sec. Significant ALP elevation and osteogenesis were observed at magnetic field intensities of 0.4, 1, and 2G. ALP activity did not differ between different frequencies. ALP activity at pulse durations of 25 and 50 micro sec were significantly higher than at the other pulse durations. The effect of electromagnetic stimulation on osteogenesis greatly depends on the intensity and pulse duration of the stimulation.
Authors:
S Matsunaga; T Sakou; K Ijiri
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  In vivo (Athens, Greece)     Volume:  10     ISSN:  0258-851X     ISO Abbreviation:  In Vivo     Publication Date:    1996 May-Jun
Date Detail:
Created Date:  1996-12-03     Completed Date:  1996-12-03     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  8806809     Medline TA:  In Vivo     Country:  GREECE    
Other Details:
Languages:  eng     Pagination:  351-6     Citation Subset:  IM    
Affiliation:
Department of Orthopaedic Surgery, Faculty of Medicine, Kagoshima University, Japan.
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MeSH Terms
Descriptor/Qualifier:
Alkaline Phosphatase / analysis*
Animals
Bone Development / physiology
Bone Marrow / enzymology*
Electromagnetic Fields*
Histocytochemistry
Osteogenesis / physiology*
Rabbits
Chemical
Reg. No./Substance:
EC 3.1.3.1/Alkaline Phosphatase

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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