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RISS 인기검색어
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- 저자 : 이지영(Jee Young Lee) (검색결과 154 건)
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진행성 대장직장암 환자군에 있어서 5-FU 혹은 capecitabine의 최적 시간 치료법에 대한 체계적 고찰 : 메타분석
이지영,오혜경,류한성,윤성우,Lee, Jee Young,Oh, Hye Kyung,Ryu, Han Sung,Yoon, Seong Woo 대한암한의학회 2015 大韓癌韓醫學會誌 Vol.20 No.1
Background : The purpose of this study is to investigate the efficacy and safety of the circadian delivery schedule of fluorouracil or capecitabine based chemotherapy for advanced colorectal cancer. Patients and methods : A meta-analysis was performed using individual data from eight international randomized clinical trials, especially phase II or III trials, comparing 5-fluorouracil, or capeticabine in chronomodulated or conventional schedule. The data from 8 studies was composed of 692 patients receiving chronomodulated chemotheray and 684 patients receiving conventional chemotherapy. The main end point was response rate. Results : Response rate was insignificantly different from each group (RR 1.14, 95%CI 0.74-1.74, p=0.55). Overall survival and progresseion-free survival were not significant either. Chemotherapy induced anemia, diarrhea, and nausea/vomiting were worse in the chronotherapy group, with statistic significance respectively. On the other hand, chemotherapy induced thrombocytopenia, stomatitis, peripheral neuropathy, and dermatotoxicity were better but they were not statistically significant results. Conclusions : Patients lived longer but not significantly on chronomodulated chemotherapy rather than on conventional chemotherapy. Patients on chronomodulated chemotherapy experienced adverse events more. The chronomodulated chemotherapy schedule needs adjustment of its delivery schedule and further research is required.
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EAF 더스트-점토계의 중금속 용출 및 안정화에 미치는 pH의 영향
이지영,이기강,김유택,강승구,김정환,Lee, Jee-Young,Lee, Ki-Gang,Kim, Yoo-Taek,Kang, Seung-Gu,Kim, Jung-Hwan 한국결정성장학회 2006 韓國結晶成長學會誌 Vol.16 No.2
유해한 중금속을 다량 함유하는 EAF(electric arc furnace) 더스트를 세라믹 원료로 재활용하기 위해서 EAF 더스트, EAF 더스트-점토에 대해서 pH와 혼합비에 따른 중금속 용출농도의 변화를 분석하였다. 소성과정 중에서 발생하는 중금속의 휘발량을 소지 내의 중금속 이온의 총량을 측정하여 평가하였으며 TCLP(toxicity characteristic leaching procedure)분석을 통해 중금속 이온의 안정화 정도를 평가하였다. EAF 더스트-점토 슬러리의 pH를 10으로 조절하였을 경우에 습식혼합 여액중의 중금속 이온의 농도가 가장 낮은 값을 가졌다. pH 10의 슬러리에 대해서 혼합비와 소성온도에 따른 소지내 중금속 이온의 총량을 측정한 결과 소성온도와 EAF 더스트의 함량이 증가할수록 중금속의 휘발이 증가하였으며, 점토의 혼합비가 증가할수록 중금속 이온의 휘발이 억제되었다. TCLP 분석결과 점토의 혼합비와 소성온도가 증가할수록 중금속의 용출은 감소하였으며 중금속의 용출농도는 기준치 이하로 안정화되었음을 확인할 수 있었다. To recycle the electric arc furnace (EAF) dust as a ceramic raw materials, the leaching concentrations of heavy metals (Zn, Pb, Cr, Cd) were analysed with various pH and mixing ratios for EAF dust and EAF dust-clay mixtures. The evaporation amounts of the some heavy metals were evaluated by measuring their total concentrations in the sintered bodies of EAF dust-clay mixtures with various mixing ratio and sintering temperature. Toxicity characteristic leaching procedure (TCLP) test was conducted for evaluating the chemical stabilities of the heavy metal elements. Leaching concentrations of heavy metal ions shows minimum leaching concentration at the pH 10. Evaporation amount of heavy metals in the sintered bodies were evaluated for the mixtures of pH 10 depenidng on mixing ratio and sintering temperature. Evaporation of heavy metal components were increased with increasing the sintering temperature and contents of the EAF dust. The evaporation of the heavy metal components in EAF dust was effectively suppressed by increasing the clay content. The leaching concentrations of heavy metal components were decreased with increasing clay content and temperature.
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이지영,이기강,김유택,강승구,김정환,Lee, Jee-Young,Lee, Ki-Gang,Kim, Yoo-Taek,Kang, Seung-Gu,Kim, Jung-Hwan 한국결정성장학회 2006 韓國結晶成長學會誌 Vol.16 No.2
중금속 이온의 용출거동은 콜로이드/계면 성질에 의존하는데, 이를 알아보기 위해 ICP와 SEM 분석을 하였다. 전기로 제강분진에 포함된 중금속은 '양쪽성 금속'으로 pH 10에서 중금속이 가장 적게 용출되는 것을 알 수 있었고 pH 8보다 pH 12에서 중금속 이온이 상당량 용출되어 나왔다. 그리고 전기로 제강분진에 점토를 첨가함으로써 중금속 이온의 용출이 감소하는 것을 알 수 있었다. 특히 pH 12의 경우에 pH 8에 비해서 중금속 이온의 용출이 큰 폭으로 감소하였으며 콜로이드계면 성질 관찰 결과, 점토의 경우 pH 12에서 점토에서 녹아나온 Si 수화물이 점토 입자표면을 둘러싸고 있음을 관찰할 수 있었다. 전기로 제강분진과 점토의 혼합 슬러리에서 pH 8의 경우보다 pH 12에서 중금속 이온의 농도가 크게 감소한 것은 PSHP의 형성에 의한 것으로 사료된다. The leaching behavior of heavy metal ions with pH and colloid/interface property was analyzed by ICP and SEM. The heavy metals in EAF dust are 'amphoteric metal' and the heavy metal ions leached a little at pH 10. And the leaching concentrations of heavy metals at pH 12 were higher than the that at pH 8. The leaching concentrations of heavy metal ion were decreased with adding the clay to the EAF dust. Especially, the leaching concentrations of heavy metal ion were effectively decreased at pH 12. The observation of colloid/interface properties shows that the soluble silicon hydroxide from clay at pH 12 was precipitated at the surface of the heavy metal and clay particles. This silicon hydroxide precipitates were named the PSHP. The leaching concentrations of heavy metal ion were effectively decreased by the formation of PSHP when adding the clay to the EAF dust and controlling the pH of the slurry at 12.
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이지영,오혜경,류한성,김남재,정원용,오현아,최혁재,윤성우,류봉하,Lee, Jee Young,Oh, Hye Kyung,Ryu, Han Sung,Kim, Nam Jae,Jung, Won-Yong,Oh, Hyun-A,Choi, Hyuck Jai,Yoon, Seong Woo,Ryu, Bong-Ha 대한암한의학회 2015 大韓癌韓醫學會誌 Vol.20 No.2
Objective : The objective of this study was to investigate the anti-tumor activity of the complexed herbal formula, Haeamdan (HAD). Methods : Seven Cancer cell lines, LoVo, MCF-7, AGS, Sarcoma 180, HL-60, NCI-H69, LL/2, were prepared and the cytotoxicity was assessed by 3-(4,5-dimethylthiazol-2yl)-2,5-dephenyl tetrazolium bromide (MTT) assay. HAD was applied with various concentrations from 0.1 to 1.0 mg/ml to figure out the appropriate dosage. ICR male mice were intraperitoneally implanted with Sarcoma 180 and divided into 8 species for each group. Control group was treated with normal saline, positive control group was treated with cyclophosphamide 8mg/kg, and experimental group was treated with HAD 1g/kg. Results : Among seven cancer cell lines, HAD exhibited strong cytotoxic activities to followed four cancer cell lines, that is, Sarcoma 180, HL-60, NCI-H69, and LL/2. These cytotoxic activity was expressed under 0.50 mg/ml of IC50 under 0.1~1mg/ml of OBW. When Sarcoma 180 cancer cell was implanted in ICR male mice and treated with the HAD, HAD prolonged the median overall survival for 3.6 days, from 17.5 to 21.1 days. Conclusion : HAD showed strong cytotoxicity to the cancer cells, Sarcoma 180, HL-60, NCI-H69, on in vitro study and it showed anti-tumor activity in vivo with the peritoneal cancer mice by prolonging the median survival for 3.6 days. Further researches would be expected to support the anti-tumor efficacy of HAD.
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이지영,오혜경,류한성,김남재,정원용,오현아,최혁재,윤성우,류봉하,Lee, Jee Young,Oh, Hye Kyung,Ryu, Han Sung,Kim, Nam Jae,Jung, Won-Yong,Oh, Hyun-A,Choi, Hyuck Jai,Yoon, Seong Woo,Ryu, Bong-Ha 대한암한의학회 2015 大韓癌韓醫學會誌 Vol.20 No.2
Objective : The objective of this study was to investigate the experimental efficacy of anti-tumor activity of the complexed herbal formula, Onbaekwon (OBW), which was derived from the literature of Traditional Korean Medicine, Dongeuibogam. Methods : Nine Cancer cell lines, LoVo, MCF-7, HepG2, AGS, A549, NCI-H69, HL-60, Sarcoma 180, LL/2, were prepared and the cytotoxicity was assessed by 3-(4,5-dimethylthiazol-2yl)-2,5-dephenyl tetrazolium bromide (MTT) assay. Four of them, NCI-H69, HL-60, Sarcoma 180, and LL/2, showed strong cytotoxic activities and they were additionally undergone flow cytometry to find out their effects on apoptosis. ICR male mice were implanted with Sarcoma 180 intraperitoneally and divided into 8 species for each group. Control group was treated with normal saline, positive control group was treated with cyclophosphamide 8mg/kg, and experimental group was treated with OBW 1 g/kg. Results : Among 9 cancer cell lines, NCI-H69, HL-60, Sarcoma 180, and LL/2, expressed less than 0.10 mg/ml of $IC_{50}$ under 0.1~1mg/ml of OBW. NCI-H69, HL-60, Sarcoma 180, and LL/2, showed dose-dependent efficacy of apoptosis. When Sarcoma 180 cancer cell was implanted in ICR male mice and treated with the OBW, they prolonged the median overall survival for 0.8 days, from 17.5 to 18.3. Conclusion : OBW showed strong cytotoxicity to some cancer cells, which are NCI-H69, HL-60, Sarcoma 180, and LL/2, and its apoptotic activity was dose-dependent. OBW prolonged the median survival of mice implanted with Sarcoma 180. Further researches would be expected to support the efficacy of OBW.
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개 심장사상충 추출액 투여에 의한 Anaphylactoid Reaction
이지영,송근호,권현주,김명철,윤효인,김덕환,Lee, Jee-young,Song, Kun-ho,Kwon, Hyun-ju,Kim, Myung-cheol,Yun, Hyo-in,Kim, Duek-hwan 대한수의학회 2003 大韓獸醫學會誌 Vol.43 No.3
This study was performed to clarify the induction possibility of anaphylactoid reactions by the administration with the heartworm extracts, and, if any, to elucidate different virulences in terms of the protein concentrdtions and sexes of Dirofilaria immitis. Twenty three clinically healthy D. immitis-free adult dogs were used in the present study. The experimental animals were divided into 5 groups. Group A (5 heads) was administered with an female heartworm extract containing 0.1 g/dl protein concentration. Group B (4 heads) was administered with an male heartworm extract containing 0.1g/dl protein concentration. Group C (5 heads) was administered with an female heartworm extract containing 0.2 g/dl protein concentration. Group D (4 heads) was administered with an male heartworm extract containing 0.2 g/dl protein concentration. Group E (5 heads) was administered with an female heartworm extract containing 0.4 g/dl protein concentration. The changes of clinical symptoms and vital signs (body temperature, heart rate and respiration rate) were examined before and 5 minutes, 15 minutes, 30 minutes, 1 hour, 2 hours and 24 hours after injection with the extracts, respectively. In addition, the changes of hematological values (RBC, PCV and total leukocytes counts), serum chemical values (ALP and CK) were determined. It was considered that heartworm extract could induce anaphylactoid reaction and adult female heartworm extract was more affective than those of adult male heartworm extract in the changes of clinical symptoms, vital signs, hematological values and serum chemical values.
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이지영(Jee Young Lee),이인란(Ihn Rhan Lee),이은방(Eun Bang Lee),이선희(Sun Hee Lee) 한국생약학회 1984 생약학회지 Vol.15 No.1
蛇每(사매), Duchesnea indica (Andr.) Focke(Rosaceae)는 민간에서 通經, 해열, 소염, 해독항종유, 지혈작용이 있다고 하여 널리 사용되어 왔다. 그런데 그 사매 (뱀딸기)에 대하여 약리작용 및 성분에 관한 실험적 연구가 거의 되어있지 않으므로 우선 通經 作用의 약효를 규명하기 위하여 estrogen效能作用 실험을 실시하였고 기타 약리작용에 대하여 실험하였다. estrogen效能作用 실험은 검체를 2일간 피하로 전처치한 rat의 적출자궁을 이용하여 oxytocin의 수축감수성을 보았고, rat의 proestrous 또는 estrous phase시부터 검체를 매일 rat 피하투여하여 estrous phase의 연장여부를 관찰하였다. 기타 작용실험은 적출 기니픽 회장 표본에서 histamine, chlorpheniramine 및 serotonin에 대한 길항성을 상법에 의하여 실시하였다. 水性액기스 200㎎/㎏, 600㎎/㎏의 용량에서 자궁수축강도가 증가되었음을 확인하였고, histamine 및 serotonin에 대해서는 길항효과가 없었으며, 다만 chlorpheniramine에 대해서만 길항을 나타내었다. 수성 엑기스가 estrogen 效能作用에 있음을 확인하였으므로 ether 및 n-butanol계통 분획을 실시하였더니, ether액기스 330,500㎎/㎏의 용량에서 oxytocin에 의한 자궁수축이 증강되었으며 이 증가는 대조군에 비하여 유의성이 있었다. 엑기스 330㎎/㎏를 투여했을 경우 estrous phase가 연장되었으므로 사매 ether 액기스에서의 estrogen效能作用을 확인할 수 있었다. 반면 butanol 엑기스와 Fractional H₂O 액기스에 서는 작용이 없었다. 이상의 실험결과로써, 수성 엑기스는 estrogen 效能作用을 확인하였고 그 효능성분은 ether에 가용성임을 알 수 있었다.
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