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김희진 大韓神經精神醫學會 2003 신경정신의학 Vol.42 No.2
There were many problems related to the regulations of speech and writing, words, meanings, sentences, expressions and paragraphs in the textbooks and papers of the neuropsychiatric community. The Korean orthography, Particularly spacing words, the rules of spelling loan word and romanization of Korean were often violated in those literatures, In the aspects of words and meanings, the cases with inappropriate selection of words and vagueness in the sentential meanings were found. Especially, redundant expressions, overuse of the foreign languages and loan words, and unnecessary causative expressions were often found. And also omissions of indispensable constituents, disagreements among the constituents, inappropriate connections occurred in the sentences. The expressions were unnatural because of the overuse of noun phrases and metaphrastic styles, also there were many paragraphs lacking of unity, closeness, and completeness. These problems cause the difficulties in understanding the contents of the writing and deteriorate the credibility of the writing, so the author should improve his abilities to understand and use properly Korean language.
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Shim, Ji Hwan,Gim, Huijin,Lee, Soojin,Kim, Byung Joo KOREAN PHARMACOPUNCTURE INSTITUTE 2016 Journal of pharmacopuncture Vol.19 No.2
Objectives: The crude extracts of Scutellaria barbata D. Don (SB) have traditionally demonstrated inhibitory effects on numerous human cancers both in vitro and in vivo. Gastric cancer is one of the most common types of cancer on world. The authors investigated the effects of an ethanol extract of Scutellaria barbata D. Don (ESB) on the growth and survival of MKN-45 cells (a human gastric adenocarcinoma cell line). Methods: The MKN-45 cells were treated with different concentrations of ESB, and cell death was examined using an MTT (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide) assay. Analyses of sub-G1 peaks, caspase-3 and -9 activities, and mitochondrial membrane depolarizations were conducted to determine the anti-cancer effects of SB on MKN-45 cells. Also, intracellular reactive oxygen species (ROS) generation was investigated. Results: ESB inhibited the growth of MKN-45 cells, caused cell cycle arrest, and increased the sub-G1 population. In addition, ESB markedly increased mitochondrial membrane depolarization and the activities of caspase-3 and -9. ESB exerted anti-proliferative effects on MKN-45 cells by modulating the mitogen-activated protein kinase (MAPK) signaling pathway and by increasing the generation of ROS. Furthermore, combinations of anti-cancer drugs plus ESB suppressed cell growth more than treatments with an agent or ESB, and this was especially true for cisplatin, etoposide, and doxorubicin. Conclusion: ESB has a dose-dependent cytotoxic effect on MKN-45 cells and this is closely associated with the induction of apoptosis. ESB-induced apoptosis is mediated by mitochondria-, caspase- and MAPK dependent pathways. In addition, ESB enhances ROS generation and increases the chemosensitivity of MKN-45 cells. These results suggest that treatment with ESB can inhibit the proliferation and promote the apoptosis of human gastric adenocarcinoma cells by modulating the caspase-, MAPK- and ROS-dependent pathway.
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백화사설초 추출물의 인체 대장암 세포주에서 항암효능에 관한 연구
이수진,김희진,심지환,박현수,김병주,Lee, Soojin,Gim, Huijin,Shim, Ji Hwan,Park, Hyun Soo,Kim, Byung Joo 대한한의학방제학회 2015 大韓韓醫學方劑學會誌 Vol.23 No.1
Objectives : The purpose of this study was to investigate the anti-cancer effects of Oldenlandia diffusa extract on WiDr human colorectal adenocarcinoma cells. Methods : We examined cell death by (3-[4, 5-dimethylthiazol-2-yl]-2, 5-diphenyltetrazolium bromide) MTT assay and the caspase 3 and 9 activity assay with Oldenlandia diffusa extract. To examine the inhibitory effects of Oldenlandia diffusa extract, we performed a cell cycle (sub-G1) analysis and mitochondrial membrane potential for the WiDr cells after 24 hours with Oldenlandia diffusa extract. Results : 1. Oldenlandia diffusa extract induced cell death in WiDr cells. 2. The sub-G1 peak was increased by Oldenlandia diffusa extract in WiDr cells. 3. Oldenlandia diffusa extract leads to increase the mitochondrial membrane depolarization in WiDr cells. 4. Oldenlandia diffusa extract increases caspase 3 and 9 activities in WiDr cells. 5. Oldenlandia diffusa extract combined with several anti-cancer drugs (paclitaxel, 5-fluorouracil, cisplatin, ectoposide, doxorubicin and docetaxel) markedly inhibited the growth of WiDr cells compared to Oldenlandia diffusa extract and anti-cancer drugs alone. Conclusions : Oldenlandia diffusa extract has an apoptotic role in human colorectal cancer cells and a potential role in developing therapeutic agents against colorectal cancer.
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Lee, Soojin,Shim, Ji Hwan,Gim, Huijin,Park, Hyun Soo,Kim, Byung Joo KOREAN PHARMACOPUNCTURE INSTITUTE 2016 Journal of pharmacopuncture Vol.19 No.1
Objectives: Oldenlandia diffusa is traditionally used to relieve the symptoms of and to treat various diseases, but its anti-cancer activity has not been well studied. In the present study, the authors investigated the anti-cancer effects of an ethanol extract of Oldenlandia diffusa (EOD) on HT-29 human adenocarcinoma cells. Methods: Cells were treated with different concentrations of an EOD, and cell death was assessed by using a 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide (MTT) assay. Analyses of the sub G1 peak, the caspase-3 and -9 activities, and the mitochondrial membrane depolarizations were conducted to confirm cell death by apoptosis. Also, intracellular reactive oxygen species (ROS) generation was determined using carboxy-H2DCFDA (5-(and-6)-carboxy-20,70-dichlorodihydrofluorescein diacetate). Results: EOD inhibited the proliferation of HT-29 cells for 24 hours by $78.6%{\pm}8.1%$ at $50{\mu}g/mL$, $74.4%{\pm}4.6%$ at $100{\mu}g/mL$, $65.9%{\pm}5.2%$ at $200{\mu}g/mL$, $51.4%{\pm}6.2%$ at $300{\mu}g/mL$, and by $41.7%{\pm}8.9%$ at $400{\mu}g/mL$, and treatment for 72 hours reduced the proliferation at the corresponding concentrations by $43.3%{\pm}8.8%$, $24.3{\pm}5.1mV$, $13.5{\pm}3.2mV$, $6.5{\pm}2.3mV$, and by $2.6{\pm}2.3mV$. EOD increased the number of cells in the sub-G1 peak in a dose-dependent manner. The mitochondrial membrane depolarization was elevated by EOD. Also, caspase activities were dose-dependently elevated in the presence of EOD, and these activities were repressed by a pan-caspase inhibitor (zVAD-fmk). The ROS generation was significantly increased by EOD and N-acetyl-L-cysteine (NAC; a ROS scavenger) remarkably abolished EOD-induced cell death. In addition, a combination of sub-optimal doses of EOD and chemotherapeutic agents noticeably suppressed the growth of HT-29 cancer cells. Conclusion: These results indicate that EOD might be an effective chemotherapeutic for the treatment of human colorectal cancer.
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