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Neuroprotective Effects of Carpinus tschonoskii MAX on 6-Hydroxydopamine-Induced Death of PC12 Cells
( Sang Cheol Kim ),( Hee Kyoung Kang ),( Min Kyoung Kim ),( Ji Hoon Kang ),( Jin Won Hyun ),( Eun Sook Yoo ),( Jung Il Kang ),( Deok Bae Park ),( Hye Jin Boo ),( Young Sang Koh ) 한국응용약물학회 2010 Biomolecules & Therapeutics(구 응용약물학회지) Vol.18 No.4
The present study investigated the neuroprotective effect of Carpinus tschonoskii MAX and its intracellular protective mechanism on 6-hydroxydopamine (6-OHDA)-induced oxidative damage in PC12 cells. We found that pretreatment of PC12 cells with C. tschonoskii extract significantly inhibited the cell death induced by 6-OHDA in a dose dependent manner. C. tschonoskii extract decreased 6-OHDA-induced apoptotic events such as chromatin condensation, DNA fragmentation, the decrease of Bcl-2/Bax ratio, caspase-3 activation and PARP cleavage. C. tschonoskii extract also reduced generation of 6-OHDA-induced reactive oxygen species and nitric oxide. Furthermore, C. tschonoskii extract up-regulated the myocyte enhancer factor 2 D (MEF2D), a critical transcription factor for neuronal survival, and Akt activity, whereas it inhibited the activity of ERK1/2 and JNK. The results suggest that C. tschonoskii extract decreases 6-OHDA-induced oxidative stress and could prevent PC12 cell apoptosis induced by 6-OHDA via the up-regulation of MEF2D and Akt activity, and thus may have application in developing therapeutic agents for Parkinson`s disease.
Bae, Sang-Cheol,Kim, Jinseok,Choe, Jung-Yoon,Park, Won,Lee, Sang-Heon,Park, Yong-Beom,Shim, Seung-Cheol,Lee, Shin-Seok,Sung, Yoon-Kyoung,Choi, Chan-Bum,Lee, So-Ra,Park, HanYu,Ahn, Yongho H. K. Lewis 2017 Annals of the rheumatic diseases Vol.76 No.1
<P>Conclusion The study met the primary objective of demonstrating equivalent efficacy of HD203 and ETN. HD203 was well tolerated, with safety comparable with ETN in this population of patients with RA.</P>