RISS 학술연구정보서비스

검색

인기 검색어

    다국어 입력

    http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.

    변환된 중국어를 복사하여 사용하시면 됩니다.

    예시)
    • 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
    • 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
    닫기

    검색결과 좁혀 보기

    선택해제

    오늘 본 자료

    • 오늘 본 자료가 없습니다.
    더보기
    • Pathogenic mechanism induced by S100A8 and S100A9, and neuroprotective effect of a novel herbmedicine, Hepad in Parkinson's disease : 파킨슨 질환에서 S100A8과 S100A9에 의한 병인기전과 Hepad의 신경보호효과

      Baek, Seung Yeop Graduate School, Eulji University 2016 국내석사

      RANK : 247787

      S100 proteins are EF-hand calcium-binding proteins with various intracellular functions including cell proliferation, differentiation, migration, and apoptosis. Some S100 proteins are secreted and exert extracellular paracrine and autocrine functions. S100A8 and S100A9 affect cell death in 1-methyl-4-phenylpyridinium (MPP+) - treated dopaminergic neuronal cells. S100A8 and S100A9 induce cell death via activation of MAPK such as p38 MAPK, JNK and expression of pro-apoptotic proteins, and activation of caspase 9 and caspsase 3 in SH-SY5Y cells. S100A8 and S100A9 also trigger cell death through the Receptor for Advanced Gycation End products (RAGE) and Toll-like receptor 4 (TLR4). Injection of the 6-hydroxydopamine (6-OHDA) plus S100A8 or S100A9 causes more significant loss of tyrosine hydroxylase (TH) immunopositive cell bodies from the substantia and microgliosis than injection group of 6-OHDA in a rat model of Parkinson’s disease. These results indicate that S100A8 and S100A9 may induce neurodegenerative effect. Neuroprotective effects of a novel herb formula, Hepad was investigated on Parkinson’s disease. Dose-dependent treatment with MPP+ decreased the viability of SH-SY5Y cells, and Hepad inhibited the toxic effect of MPP+ and MPP+ plus S100A8 or S100A9. Hepad blocked the production of reactive oxygen species (ROS) induced by MPP+ in SH-SY5Y cells, and suppressed the activation of caspase 9 and caspase 3 due to MPP+. A rat model of Parkinson’s disease was generated by 6-OHDA injection into the left medial forebrain bundle (MFB) of SD rats. In amphetamine sulfate-induced rotational behavioral tests, Hepad administration attenuated circling behavior relative to the 6-OHDA-treated disease group. In addition, Hepad treatment significantly increased the TH- positive cells in the substantia nigra pars compacta (SNpc) that had decreased in response to 6-OHDA treatment. OX-6 expression, which indicates the presence of microglial cells, significantly decreased after treatment of Hepad in contrast to the 6-OHDA-treated disease group. These results indicate that Hepad may be a useful neuroprotective material for the treatment of neurodegenerative disorders such as Parkinson’s disease.

    연관 검색어 추천

    이 검색어로 많이 본 자료

    활용도 높은 자료

    해외이동버튼