• 대한기관식도과학회:학술대회논문집
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• 대한기관식도과학회 1982년도 제16차 학술대회연제순서 및 초록
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• pp.6.1-6
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• 1982

후두유두종은 17세기 Warcellus Dohalus에 의해 Warts of throat로 처음 소개된 이래 후두의 가장 흔한 양성종양으로 알려져 왔으며 조직학적으로는 양성이나 병변의 위치, 병변의 다발성, 고도의 재발성 및 치료의 곤란으로 임상적인 면에서 많은 문제점이 있다. 후두유두종은 경우에 따라서는 자연치료도 가능한 반면 악성변화를 일으킬 수 있다고도 알러져 있는데 그 빈도는 악성변화가 전혀 없다고 주장하는 보고자부터 26.0%에 이르기까지 많은 차가 있다. 저자들은 최근 편평세포암으로 악성변화를 일으켰던 후두유두종 2예를 경험하였기에 보고하는 바이다. 증예1은 58세의 남자로서 1980년 5 월 13 일 약 3연간의 애성을 주소로 부산학병원 이비인후과 외래로 내원하였다. 내원 당시 국소소견은 양측성대의 전반부 및 전연합에 백색의 후두종양 종물을 나타내었고 간접후두경하에서 생검을 실시하였던 바 후두유두종이었다. 동년 5월 29 일 입원하여 Suspension laryngoscopy하에 완전제거후 퇴원하였다. 퇴원시 5-FU 국소도포를 권유하였으나 특별한 치료를 받지 않고 경과 중 약 9개월 후인 동년 3월 5 일 애성의 악화와 경징한 호흡곤란이 있어 외래를 재방문하였는데 당시의 국소소견은 유두종양 종물이 양측 성대 및 성문하부에 까지 관찰 할 수 있었으며 직접후두경하에서 생검하여 편평세포암으로 진단되었다. 7 일 후 환자는 극심한 호흡곤란을 주소로 응급실로 내원하여 기관절개술을 받고 입원하였다. 동년 4월 7 일 후두전적출술을 시행하고 3주후 퇴원하여 방사선치료를 받고 현재까지 특별한 이상없이 생활하고 있다. 증예2는 47 세 남자로서 1978년 9월 27 일 애성 및 호흡곤란을 주소로 내원하였다. 내원 당시 국소소견은 좌측성대의 전반부에 백색의 빛나는 상실상의 종물이 인지되어 문접후두경하에서 생검을 실시한 결과 후두유두종이었다. 동년 10월 24 일 입원하여 기관절개술후 Suspension laryngoscopy 하에서 유두종을 제거하였으며 5-FU 국소도포를 62.5 mg씩 20회 총 1250mg을 사용하였고 esroge등을 투여하였으나 재발을 계속하였다. 동년 9월 9 일 심한 호흡곤란을 주소로 응급실로 내원하여 기관절개술을 시행한 후 생검을 시행한 결과 편평세포암으로 확진되어 동년 9월 29 일 후두전적출술을 시행하였다. 술후 25 일에 퇴원하여 현재까지 암의 전이 혹은 합병증의 발생없이 경과하고 있다.

• Asian Pacific Journal of Cancer Prevention
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• 제15권22호
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• pp.9627-9630
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• 2014

Background: Although efficacy of aprepitant for suppressing emesis associated with single-dose cisplatin has been demonstrated, there are limited data on the antiemetic effect of this oral neurokinin-1 receptor antagonist during daily administration of cisplatin. Accordingly, we investigated the efficacy and safety of aprepitant in patients with head and neck cancer (HNC) receiving combination therapy with cisplatin and 5-FU (FP therapy). Materials and Methods: Twenty patients with HNC were prospectively studied who received a triple antiemetic regimen comprising granisetron ($40{\mu}g/kg$ on Days 1-4), dexamethasone (8 mg on Days 1-4), and aprepitant (125 mg on day 1 and 80mg on days 2-5) with FP therapy (cisplatin $20mg/m^2$ on days 1-4; 5-FU $400mg/m^2$ on days 1-5) (aprepitant group). We also retrospectively studied another 20 HNC patients who received the same regimen except for aprepitant (control group). Results: For efficacy endpoints based on nausea, the aprepitant group showed significantly better results, including a higher rate of complete response (no vomiting and no salvage therapy) for the acute phase (p=0.0342), although there was no marked difference between the two groups with regard to percentage of patients in whom vomiting was suppressed. There were no clinically relevant adverse reactions to aprepitant. Conclusions: This study suggested that a triple antiemetic regimen containing aprepitant is safe and effective for HNC patients receiving daily cisplatin therapy.

• Molecules and Cells
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• 제37권12호
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• pp.857-864
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• 2014

Astrocyte elevated gene-1 (AEG-1) is a recently discovered oncogene that has been reported to be highly expressed in various types of malignant tumors, including renal cell carcinoma. However, the precise role of AEG-1 in renal cancer cell proliferation and apoptosis has not been clarified. In this study, we transfected the renal cancer cell line Caki-1 with a plasmid expressing AEG-1 short hairpin RNA (shRNA) and obtained cell colonies with stable knockdown of AEG-1. We found that AEG-1 down-regulation inhibited cell proliferation and colony formation and arrested cell cycle progression at the sub-G1 and G0/G1 phase. Western blot analysis indicated that the expression of proliferating cell nuclear antigen (PCNA), cyclin D1 and cyclin E were significantly reduced following AEG-1 down-regulation. In addition, AEG-1 knockdown led to the appearance of apoptotic bodies in renal cancer cells, and the ratio of apoptotic cells significantly increased. Expression of the antiapoptotic factor Bcl-2 was dramatically reduced, whereas the pro-apoptotic factors Bax, caspase-3 and poly (ADPribose) polymerase (PARP) were significantly activated. Finally, AEG-1 knockdown in Caki-1 cells remarkably suppressed cell proliferation and enhanced cell apoptosis in response to 5-fluorouracil (5-FU) treatment, suggesting that AEG-1 inhibition sensitizes Caki-1 cells to 5-FU. Taken together, our data suggest that AEG-1 plays an important role in renal cancer formation and development and may be a potential target for future gene therapy for renal cell carcinoma.

• Radiation Oncology Journal
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• 제31권1호
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• pp.25-33
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• 2013

Purpose: We reviewed the treatment outcomes and prognostic factors for patients with anal canal carcinoma who were treated with curative intent chemoradiotherapy (CRT) at Severance Hospital from 2005 to 2011. Materials and Methods: Data for 38 eligible patients treated during this period were reviewed. All patients were treated with curative intent using radiotherapy (RT) with (n = 35) or without concomitant chemotherapy (n = 3). Among 35 patients who received CRT, most of the chemotherapeutic regimens were either 5-fluorouracil (5-FU) plus mitomycin C (23 patients) or 5-FU plus cisplatin (10 patients). Recurrence-free survival (RFS), colostomy-free survival (CFS), overall survival (OS), and locoregional control (LRC) rates were calculated using the Kaplan-Meier method and survival between subgroups were compared using the log-rank test. Cox's proportional hazard model was used for multivariate analysis. Results: Over a median follow-up period of 44 months (range, 11 to 96 months), 3-year RFS, CFS, OS, and LRC were 80%, 79%, 85%, and 92%, respectively. In multivariate analysis, tumor size >4 cm was an independent predicting factor for poorer RFS (hazard ratio [HR], 6.35; 95% confidence interval [CI], 1.42 to 28.5; p = 0.006) and CFS (HR, 6.25; 95% CI, 1.39-28.0; p = 0.017), while the presence of external iliac lymph node metastasis was an independent prognosticator for poorer OS (HR, 9.32; 95% CI, 1.24 to 70.3; p = 0.030). No treatment-related colostomies or deaths occurred during or after treatment. Conclusion: Curative intent CRT resulted in excellent outcomes that were comparable to outcomes in previous randomized trials. No severe treatment-related toxicities were observed.

• Journal of Gastric Cancer
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• 제10권3호
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• pp.99-105
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• 2010

Purpose: Currently, the two most influential gastric stem cell marker candidates are CD44 and CD133. The aim of this study was to make a comparison and determine the appropriate marker for use in gastric cancer stem cell research. Materials and Methods: We analyzed the expressions of CD44, CD133, and CD24 from the gastric cancer cell lines MKN45, MKN74, KATO-III, NCI-N87, SNU-1, SNU-216, SNU-601, SNU-638, and SNU-688 using flow cytometry. In addition, we measured the change in viability after applying 5 fluorouracil (5-FU) to the MKN45, MKN74, KATO-III, and NCI-N87 cell lines using a Cell Counting Kit 8. Results: CD133 expression was above moderate in the KATO-III, SNU-216, SNU-601 cell lines, whereas it was below 1% in the remaining cell lines. CD44 was expressed at levels above 5% in all gastric cancer cell lines. The effect of 5-FU on viability and CD133 or CD44 expression in the cell lines were not related. Conclusions: Expression of CD133 positive cells was insufficient in the gastric cancer cell lines. Therefore, of the cell lines tested, CD44 was the most appropriate tumor maker for research on gastric cancer stem cells.

• Macromolecular Research
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• 제16권6호
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• pp.510-516
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• 2008

New antitumor active polymers, poly(methacryloyl-2-oxy-1,2,3-propanetricarboxylic acid-co-exo-3,6-epoxy-l,2,3,6-tetrahydrophthalic acid) [poly(MTCA-co-ETAc)], poly(methacryloyl-2-oxy-l,2,3-propanetricarboxylic acid-co-hydrogen ethyl-exo-3,6-epoxy-l,2,3,6-tetrahydrophthalate) [poly(MTCA-co-HEET)], and poly(methacryloyl-2-oxy-l,2,3-propanetricarboxylic acid-co-a-ethoxy-exo-3,6-epoxy-1,2,3,6-tetrahydrophthaloyl-5-fluorouracil) [poly(MTCA-co-EETFU)] were synthesized and characterized. Their antitumor activity, inhibition of DNA replication and antiangiogenesis were examined. The structures of the polymers were identified by FT-IR, $^1H$ and $^{13}C$-NMR spectroscopy. The number average molecular weights of the fractionated polymers determined by GPC ranged from 9,400 to 14,900, and polydispersity indices were less than 1.7. The in vitro cytotoxicity of these polymers was determined and their antitumor activity was evaluated. The $IC_{50}$ values (the drug concentration at inhibition of 50% tumor growth) indicated that the synthesized polymers were much better inhibitors of cancer cells and showed lower cytotoxicity than the free 5-FU. The in vivo antitumor activity of the conjugates was examined using mice bearing the sarcoma 180 tumor cell line. The life spans (TIC) of the mice treated with the conjugates were higher than those treated with the free 5-FU. In addition, the synthesized conjugates showed excellent antiangiogenic activity based on an embryo chorioallantoic membrane assay.

• Composites Research
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• 제21권3호
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• pp.18-23
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• 2008

쾌속 조형(Rapid Prototyping; RP) 기술은 다양한 분야에서 활용되고 있다. 본 연구에서는 RP 기술을 이용한 나노복합재 적층장치(Nano Composite Deposition System, NCDS)를 사용하여 이식 가능한 약물전달시스템을 제작하였다. 약물전달시스템 복합재는 약물 입자로 5-fluorouracil (5-FU)를 사용하였으며, 생분해 고분자 매트릭스로 PLGA85/15를 사용하였다. 제작된 약물전달시스템은 넓은 표면적을 가질 수 있도록 지지체(scaffold) 형상으로 제작되었으며, in vitro 환경에서의 약물방출실험이 수행되었다. 약물방출제어를 위하여 생체적합재료인 수산화아파타이트(Hydroxyapatite, HA)를 약물-고분자 복합재에 첨가하였다. 약 50일간의 방출실험을 통하여 약물방출의 가능성을 보임을 확인하였다.

• Journal of Acupuncture Research
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• 제20권1호
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• pp.61-73
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• 2003

Objective: The purpose of this study is to compare Sa-Am's Ohaeng-acupuncture(舍巖五行鍼法) with Linqi-aupuncture(六氣鍼法)-the transforms of Sa-Am's Ohaeng-acupuncture. Methods : Zheng Ge(正格), Sheng(勝格), Han Ge(寒格), Re Ge(熱格) of Sa-Am's Ohaeng-acupuncture compared with Liuqi-acupuncture(六氣鍼法)-therapy form invigoration and purgation of five zang-fu's wind. heat, dapness, dryness and cold(風熱濕燥寒). Results: 1. Liuqi-acupuncture used five-su points(五兪穴) and Zi-Ta Jing Bu Xie(自他經補瀉). 2. Liuqi-acupuncture is reinforced or reduced itself-point of itself-meridian(自經自穴) in therapy for invigoration and purgation. 3. Liuqi-acupuncture is therapy for invigoration and purgation of five zang-fu's wind, hear, dampness, dryness and cold(風熱濕燥寒). 4. Zheng Ge is similar to Bu-fa, Sheng Ge is similar to Xie-fa in Qu-xue of Ta-jing. The Qu-xue of interrestraining relations is the same, but that of interdependent relation is the difference in Qu-xure of Zi-jing. 5. Han Ge and Re Ge is similar to Re Bu Xie fa in Qu-xue fo Zi-jing but is different to in Ta-zing. For example, Han Ge is Shaofu(Bu), Yingu(Xie) but Re Ge is Shaofu(Xie), Yingu(Bu).

• 혜화의학회지
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• 제8권1호
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• pp.97-114
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• 1999

By studying disease classifications of oriental medicine from Nei-Ching, Chao's-Bing-Yuan, Dong-Yi-Bao-Jian and Korea-standard classification of causes of disease & death. The results were obtained as follows : 1. In Nei-Ching 181 kinds, Chao's-Bing-Yuan 1729 kinds, Dong-Yi-Bao-Jian 966 kinds, and Korea-standard classification of causes of disease & death 2519 kinds of diseases, which suggested more diseases as time flew. 2. In classical books such as Nei-Ching, Chao's-Bing-Yuan, and Dong-Yi-Bao-Jian most of diseases and their names were originated from six kinds of pathogenic factors, Zang-Fu, Jung-Qi-Blood-Fluid, soul, and outer-body-signs, while Korea-standard classification of causes of disease & death classified diseases according to oriental medical departments. 3. Symptoms of Cold-Heat-Excess-Deficiency and pathogenic factors, body parts, Zang-Fu were applied to names of diseases in oriental medicine. 4. In oriental medicine, some symtoms, many intermal diseases were used as disease name, but it is necessary for us to select exact name of diseases in modem clinical treatment. 5. We should consider disease names in Korea-standard classification of causes of disease & death in relations with western medical terms of diseases.

• Clinical and Experimental Reproductive Medicine
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• 제46권3호
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• pp.119-124
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• 2019

Objective: It is widely accepted that aging decreases women's fertility capacity. The aim of this study was to assess correlations between maternal age and the morphokinetic parameters and cleavage pattern of embryos. Methods: The morphokinetics of embryos derived from women < 30, 30-35, 36-40, and > 40 years of age were compared retrospectively in terms of time of second polar body extrusion, time of pronuclei appearance, time of pronuclei fading, and time of two to eight discrete cells (t2-t8). Furthermore, abnormal cleavage patterns such as uneven blastomeres at the two-cell stage, cell fusion (Fu), and trichotomous mitoses (TM) were assessed. Results: Only t5 occurred later in women aged 36-40 and > 40 years when compared with those aged < 30 and 30-35 years (p< 0.001). Other morphokinetic timing parameters, as well the presence of uneven blastomeres, were comparable between the groups (p> 0.05). However, Fu and TM were more common in women aged > 40 years than in younger women (p< 0.001). Conclusion: Maternal age was correlated with the cleavage pattern of embryos. Therefore, evaluating embryo morphokinetics may contribute to optimal embryo selection, thereby increasing fertility in patients with advanced maternal age.