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Microbubble-Mediated Ultrasound Outweighs Low-Intensity Pulsed Ultrasound on Osteogenesis and Neovascularization in a Rabbit Model of Steroid-Associated Osteonecrosis
Joint Authors
Yan, Shi-Gui
Xu, Dan-Feng
Qu, Guo-Xin
Cai, Xun-Zi
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-09-12
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Microbubbles magnify the acoustic pressure of low-intensity pulsed ultrasound (LIPUS) and may enhance its bioeffect for diagnostic and therapeutic purposes.
This study compared the effect of this novel microbubble-mediated ultrasound (MUS) with that of the traditional LIPUS on osteogenesis and neovascularization in a rabbit model of steroid-associated osteonecrosis.
We hypothesized that MUS might outweigh LIPUS on promoting osteogenesis and neovascularization in steroid-associated osteonecrosis.
The bilateral femoral head necrosis was induced by lipopolysaccharide and methylprednisolone in the rabbits.
The indices of bone mineral density (BMD), trabecular number, maximal loading strength, and mineral apposition rate were analyzed, demonstrating that the animal model of steroid-associated osteonecrosis was successfully established.
Both the MUS group (GM) and the LIPUS group (GL) were insonated 20 min daily for six weeks.
GM received an extra intracapsular injection of microbubbles before insonation every other day.
Fluorescence bone labeling, Micro-CT Analysis, biomechanical test, quantitative real-time PCR, Western blot analysis, and histological evaluation were performed for comparing GM with GL.
The results demonstrated a 39% higher mineral apposition rate in GM compared with GL.
The BMD and the maximal loading strength of femoral head of GM increased by 4.3% and 27.8% compared to those of GL, respectively.
The mRNA and protein expression of BMP-2 and VEGF were also significantly higher in GM.
The number of blood vessels of GM was 65% greater than that of GL.
MUS is more potent than LIPUS in enhancing osteogenesis, neovascularization, and biomechanical strength of femoral head in the animal model of steroid-associated osteonecrosis.
Without increasing the intensity of insonation or the risk of tissue damage, MUS is better for inhibiting the process of steroid-associated osteonecrosis.
American Psychological Association (APA)
Xu, Dan-Feng& Qu, Guo-Xin& Yan, Shi-Gui& Cai, Xun-Zi. 2018. Microbubble-Mediated Ultrasound Outweighs Low-Intensity Pulsed Ultrasound on Osteogenesis and Neovascularization in a Rabbit Model of Steroid-Associated Osteonecrosis. BioMed Research International،Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1126791
Modern Language Association (MLA)
Xu, Dan-Feng…[et al.]. Microbubble-Mediated Ultrasound Outweighs Low-Intensity Pulsed Ultrasound on Osteogenesis and Neovascularization in a Rabbit Model of Steroid-Associated Osteonecrosis. BioMed Research International No. 2018 (2018), pp.1-11.
https://search.emarefa.net/detail/BIM-1126791
American Medical Association (AMA)
Xu, Dan-Feng& Qu, Guo-Xin& Yan, Shi-Gui& Cai, Xun-Zi. Microbubble-Mediated Ultrasound Outweighs Low-Intensity Pulsed Ultrasound on Osteogenesis and Neovascularization in a Rabbit Model of Steroid-Associated Osteonecrosis. BioMed Research International. 2018. Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1126791
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1126791