학술논문
The effects of repetitive transcranial magnetic stimulation on proliferation and differentiation of neural stem cells
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- 영문명
- 발행기관
- 대한해부학회
- 저자명
- Keramatollah Abbasnia Amir Ghanbari Mehrnaz Abedian Ali Ghanbari Sharareh Sharififar
- 간행물 정보
- 『Anatomy and Cell Biology』Vol.48(2), 104~113쪽, 전체 9쪽
- 주제분류
- 의약학 > 의학일반
- 파일형태
- 발행일자
- 2015.06.30
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국문 초록
영문 초록
Repetitive transcranial magnetic stimulation (rTMS) is a new method for treating many neurological conditions;
however, the exact therapeutic mechanisms behind rTMS-induced plasticity are still unknown. Neural stem and progenitor cells (NS/PCs) are active players in brain regeneration and plasticity but their behavior in the context of rTMS therapy needs further elucidation. We aimed to evaluate the effects of rTMS on proliferation and differentiation of NS/PCs in the subventricular zone (SVZ) of adult mouse brain. Adult male mice (n=30) were divided into rTMS (1-Hz and 30-Hz) and sham groups and treated for 7 or 14 consecutive days. Harvested NS/PCs from the SVZ were cultured in the neurosphere assay for 8 days and the number and size of the resulting neurospheres as well as their in vitro differentiation capacity were evaluated. After one week of rTMS treatment at 1-Hz and 30-Hz compared with sham stimulation, the mean neurosphere forming frequency per brain was not different while this measure significantly increased after two weeks (P<0.05). The mean neurosphere diameter in 1-Hz treatment paradigm was significantly larger compared with sham stimulation at both 1 and 2 weeks. In contrast, 30-Hz treatment paradigm resulted in significantly larger neurospheres only after 2 weeks. Importantly, rTMS treatment at both frequencies increased neuronal differentiation of the harvested NS/PCs. Furthermore, one week in vitro rTMS treatment of NS/ PCs with both 1-Hz and 30-Hz increased NS/PCs proliferation and neuronal differentiation. It is concluded that both 1-Hz and 30-Hz rTMS treatment increase NS/PCs proliferation and neuronal differentiation.
목차
Introduction
Materials and Methods
Results
Discussion
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