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권문기(Moon Ki Kwon),함풍도(Poong Do Ham),권민정(Min Jung Kwon),지미경(Mi Kyung Jee),나욱열(Wook Yull Na) 대한산부인과학회 2002 Obstetrics & Gynecology Science Vol.45 No.6
Malignant germ cell tumor of ovary is very rare and one of the most malignant gynecologic neoplasms usually affecting younger women. we experienced a case of 19-year old female with mixed germ cell tumor of ovary which was composed of endodermal sinus tumor and dysgerminoma. we report this case with a brief review of the literature.
권문기(Moon Ki Kwon),권민정(Min Jung Kwon),백승엽(Seung Yeop Baek),함풍도(Poong Do Ham),지미경(Mi Kyung Jee),나욱열(Wook Yull Na) 대한산부인과학회 2002 Obstetrics & Gynecology Science Vol.45 No.8
A case of intraperitoneal hemorrhage of intraligamentary pregnancy is one of most unusual accidents in obstetrics and carries a high degree of maternal and fetal niorbity and mortality. The diagnosis of intraligamentary pregnancy is rarely ever made prior to lapardorny. We report a case of it with a brief review of literatures concerned.
권문기(Moon Ki Kwon),권민정(Min Jung Kwon),백승엽(Seung Yeop Baek),함풍도(Poong Do Ham),지미경(Mi Kyung Jee),나욱열(Wook Yull Na) 대한산부인과학회 2002 Obstetrics & Gynecology Science Vol.45 No.8
Mature cystic teratoma of the ovary is the most common ovarian germ cell neoplasm representing 10-20% of all ovarian tumors. Malignant transformation rarely takes place, which is approximately 1-2% of all cases. The most common malignancy arising in mature cystic teratoma is squamous cell carcinoma. The prognosis of malignant transformation developing in mature cystic teratoma is poor and the management is not established due to the rarity of malignant degeneration. A case of stage la squamous cell carcinoma which developed in mature cystic teratoma of left ovary in a 43-year-old female is presented. The ovarian tumor was woman`s fist-sized with intact capsule. Left oophorocystectomy was done. Above case with a brief review of literature is given.
Clinical application of factor analysis GOD monitor video output and S-curve model
김선칠,권문기,장지필,Kim, Seon-chil,Kwon, Mun-gi,Jang, Ji-pil The Korean Society for Digital Imaging in Medicine 2015 대한디지털의료영상학회논문지 Vol.17 No.1
임상용 모니터의 출력값 중 가장 큰 영향을 주는 것이 휘도이다. 최근 컬러 모니터의 임상용 사용으로 인해 출력값의 보정은 매우 중요하게 관리되고 있다. 색보정 변위의 특성화가 휘도와 동일한 인자로 영향을 주는지 분석하기 위해 사용된 특성화 보정 모델은 GOG모델과 S-curve모델 이다. 두 개의 모델을 통해 모니터의 휘도는 장치의 출력과 직접적인 관계가 있다는 것을 증명하고 동일한 출력에 입력값을 가질 수 있도록 구성하고자 한다. 동일한 출력을 디스플레이 할 경우 동일한 출력값을 얻어야 한다. 그러나 모니터에 따라 서로 다른 출력값을 산출한다. 컬러모니터의 경우는 출력의 안정성에 휘도뿐만 아니라, 색감(R,G,B) 변화가 큰 역할을 수행한다. 본 연구에서는 분석인자 중 대조도에 영향을 주는 인자를 역추적하여 특성화 보정 S-curve모델을 LCD에 적용하였다. 이는 GOG모델을 적용한 CRT와 동일한 결과를 얻었다. 따라서 인자는 CIEXYZ의 결과값과 동일한 인자를 구할 수 있다.
OVCAR-3 세포주에서 Annexin V, Propium Iodide와 Cytokeratin 염색에 의한 고사세포의 측정
송민경 ( Song Min Gyeong ),권문기 ( Kwon Mun Gi ),이정웅 ( Lee Jeong Ung ),최예훈 ( Choi Ye Hoon ),김태우 ( Kim Tae U ),류기성 ( Ryu Ki Sung ),나종구 ( Rha Jong Gu ),한구택 ( Han Gu Taeg ) 대한산부인과학회 2003 Obstetrics & Gynecology Science Vol.46 No.7
Objective : This study was designed to estimate the chemosensitivity by a quantitative evaluation of the apoptotic cell fractions using flow cytometry. Methods : The OVCAR-3 cells were exposed to 20 nM or 30 nM taxol for 0 (control), 24 and 48 hours, then removed the taxol contained media, and cultured further with fresh media without taxol. (1) Fluorescin isothiocyanate-conjugated Annexin V (Annexin V-FTTC) and propidium iodide (PI) were added to one test tube to detect the apoptotic cell fractions and at the same time, PI was added to the other tube to stain the DNA. (2) Annexin V-FITC and cytokeratin (clone CAM5.2 and MNF116) were added to the test tube. They were fixed and permeabilized with 1% paraformaldehyde solution and 100% methanol. They were then incubated with phycoerythrin (PE)-conjugated goat anti-mouse immunoglobulin G (GAM IgG_1-PE or GAM IgG_2a-PE) and sequentially stained with PI for DNA. All the stained cells were analyzed by a FACScan flow cytometer. Results : (1) After treatment of 20 nM or 30 nM of taxol, G_2M arrest was observed in both of treatment groups, which increased with time. (2) The G_0G_1 sub-fraction indicative of apoptosis increased with increase of culturing time from 24 hrs to 48 hrs. (3) The early apoptotic cell fraction with positive annexin V-FITC and negative PI increased with increase of culturing time. (4) In cells stained sequentailly with annexin V-FITC, cytokeratin (CAM5.2 and MNF116), and PI after 30 nM taxol treatment, the early apoptotic cell fractions increased with increase of culturing time. However, their extent was somewhat lower than those observed by positive annexin V-FITC and negative PI in cells treated with 20 nM of taxol. Conclusion : The results of sequential stainings with annexin V-FITC, cytokeratin, and PI were consistent with the those of annexin V-FITC and PI with parallel DNA staining. Our results suggested that the level of apoptosis detected by flow cytometry could be a marker of chemosensitivity which could select the sensitive anti-cancer agents before administration to gynecologic cancer patients.
Staurosporine 전처치에 의한 항암 화학요법으로부터 정상 세포의 선택적 보호 역할
정상희 ( Jeong Sang Hui ),권문기 ( Kwon Mun Gi ),조윤성 ( Jo Yun Seong ),송민경 ( Song Min Gyeong ),류기성 ( Lyu Gi Seong ),나종구 ( Na Jong Gu ),한구택 ( Han Gu Taeg ) 대한산부인과학회 2003 Obstetrics & Gynecology Science Vol.46 No.9
Objective : A major limiting factor in human cancer chemotherapy is toxicity in normal cells and tissues. Our goal was to determine whether normal proliferating cells could be protected from chemotherapeutic agents by taking advantage of the differential