한국과 일본의 대장·직장암의 비교연구

박성대,박영관,채종민,정재홍,畦倉薰,高橘孝,柳鞏昭表,加薦洋 대한대장항문학회 1987 Annals of Coloproctolgy Vol.3 No.1

인위적 치아정출술

지대경(DK Ji),임용규(YK Lim),이동렬(DK Lee) 대한치과의사협회 2001 대한치과의사협회지 Vol.39 No.8

Towards Future Mobile Network

DK Lee,Jong-Han Park,Jin-Hyo Park 한국통신학회 2014 정보와 통신 Vol.31 No.6

Mobile operators today face yet another critical challenge as technology lifecycle becomes increasingly short and also as heterogeneous and complex network becomes exceedingly expensive and difficult to manage. With extremely competitive market and demanding users, the overall revenue structure is expected to get worse. A network architecture based on software-defined networking (SDN) and virtualization techniques gives operators greater opportunity to build cost-effective and efficient alternative to the legacy. In this work we review our Carrier Cloud as a future mobile network infrastructure that exploits both SDN and NFV in order to increase the operator agility, reduce the cost, and even disrupt the vendor landscape. This new architecture will not be fully adopted by the conservative operators at once. Technological hurdles have to be overcome, and a clear understanding of operational differences must be preceded.

Anti-allergic Components from the Peels of Citrus unshiu

DK Kim,KT Lee,JS Eun,OP Zee,JP Lim,SS Eum,SH Kim,TY Shin 대한약학회 1999 大韓藥學會 總會 및 學術大會 Vol.48 No.-

Effects of methanol extracts of Cuscuta reflexa Roxb. stem and Corchorus olitorius Linn. seed on male reproductive system of mice

DK Pa,M Gupta,UK Mazumder 경희대학교 융합한의과학연구소 2009 Oriental Pharmacy and Experimental Medicine Vol.9 No.1

The antifertility activity of methanol extract of Cuscuta reflexa Roxb. stem (MECR) and Corchorus olitorius Linn. seed (MECO) were studied on male Swiss albino mice. The extracts were found to decrease sperm count, percentage of motile sperm and testosterone level in treated mice when compared with vehicle control after 17 days of treatment. The weight of gonads, epididymis were decreased whereas no significant changes of the body weight of mice were observed after methanol extract treatments. The fertility test showed 100% negative result in MECR and MECO treated mice at medium and high dose level of treatment. MECR and MECO in low (25 mg/kg and 15 mg/kg, respectively), medium (50 mg/kg and 20 mg/kg, respectively) and high (75 mg/ kg and 25 mg/kg, respectively) dose level caused a simultaneous fall in testicular Δ5-3β–hydroxy steroid dehydrogenase and glucose-6-phosphate dehydrogenase activities which are involved in testicular steroidogenesis. Total cholesterol and ascorbic acid content in testis were increased significantly in gonads. The activities of lactate dehydrogenase, malic dehydrogenase and ascorbic acid oxidase were reduced whereas that of carbonic anhydrase was increased significantly in the testis of MECR and MECO treated mice. All these observations indicate that the methanol extract of C. reflexa stem and C. olitorius seed produced antifertility activity in sexually matured male mice, which may be due to inhibition of gonadal steroidogenesis. This activity may be attributed due to the presence of flavonoids and steroids, respectively. The antifertility activity of methanol extract of Cuscuta reflexa Roxb. stem (MECR) and Corchorus olitorius Linn. seed (MECO) were studied on male Swiss albino mice. The extracts were found to decrease sperm count, percentage of motile sperm and testosterone level in treated mice when compared with vehicle control after 17 days of treatment. The weight of gonads, epididymis were decreased whereas no significant changes of the body weight of mice were observed after methanol extract treatments. The fertility test showed 100% negative result in MECR and MECO treated mice at medium and high dose level of treatment. MECR and MECO in low (25 mg/kg and 15 mg/kg, respectively), medium (50 mg/kg and 20 mg/kg, respectively) and high (75 mg/ kg and 25 mg/kg, respectively) dose level caused a simultaneous fall in testicular Δ5-3β–hydroxy steroid dehydrogenase and glucose-6-phosphate dehydrogenase activities which are involved in testicular steroidogenesis. Total cholesterol and ascorbic acid content in testis were increased significantly in gonads. The activities of lactate dehydrogenase, malic dehydrogenase and ascorbic acid oxidase were reduced whereas that of carbonic anhydrase was increased significantly in the testis of MECR and MECO treated mice. All these observations indicate that the methanol extract of C. reflexa stem and C. olitorius seed produced antifertility activity in sexually matured male mice, which may be due to inhibition of gonadal steroidogenesis. This activity may be attributed due to the presence of flavonoids and steroids, respectively.

난관임산경과후 동측에 반복된 난관문질부임신

오덕겸(DK Oh),박성관(SK Park),조석신(SS Cho),한정철(JC Hahn) 대한산부인과학회 1967 Obstetrics & Gynecology Science Vol.10 No.8

An extremly rare case, " Interstitial Pregnancy after Homolateral Salpingectomy", presented and it`s causes, incidence, various methods of diagnosis and treatments are briefly discussed with a review of the literature.

전치유착태반의 1증례

윤달규(DK Yoon),조영권(YK Cho),이영배(YB Lee),김양일(YI Kim) 대한산부인과학회 1975 Obstetrics & Gynecology Science Vol.18 No.2

전치 태반유착의 1례를 치료함과 동시에 문헌적 고찰을 하였다. Placenta accreta associated with placenta previa is a rare but serious complications of pregnancy and it is difficult to diagnose the disease during the pregnancy. A case of placenta previa accreta which was cured by the abdominal hysterectomy is presented and a brief review of the literature is made.

임신과 분만시 모체혈장 beta-endorphin에 관한 연구

정동근(DK Chung),김정구(JK Kim),문신용(SY Moon),이진용(JY Lee),장윤석(YS Chang) 대한산부인과학회 1987 Obstetrics & Gynecology Science Vol.30 No.10

1986년 4월부터 1986년 9월까지 서울대학교병원 산부인과외래에 내원한 정상임부 43명, 분만을 위하여 보원에 입원한 임부중 질식분만한 임부 33명과 제왕절개술로 분만한 임부 21명 및 정상 비임부 21명을 대상으로 모체혈장 -Ep치를 방사면역법으로 측정하여 다음과 같은 결론을 얻었다. 1. 임신기간중 모체혈장 -Ep치는 치는 각 임신기수에서 유의한 변화를 하지 않았으며 정상 비임부의 것보다 약간 증가하였으나 유의한 차가 없었다. 2. 모체혈장 -Ep치는 분만 제 1기에서 임신 제 3기보다 유의하게 증가하였으며, 진통이 진행됨에 따라 점차 증가하여 분만 제 2기에 최고치에 도달한 후에 감소되어 분만 제 3기에서 분만 제 1기의 후기의 수준이 되었다. 3. 각 분만기수에서 자연분만과 oxytocin유도분만시의 모체혈장 -Ep치 사이에는 유의한 차가 없었다. 4. 분만방식에 따른 모체혈장 -Ep치는 응급제왕절개분만의 경우가 선택적 제왕절개분만의 경우보다 유의하게 높았으나 자연질식분만 및 흡인질식분만의 경우와는 유의한 차가 없었다.5. 응급제왕절개술과 선택적 제왕절개술의 경우 마취전과 마취후의 모체혈장 -Ep치는 각각 유의한 차가 없었다. This study was undertaken to evaluate the changes in maternal plasma beta-endorphin level during pregnancy, labor, and delivery, and the effects of the mode of delivery and general anesthesia on maternal plasma -endorphin level. Immunoreactive -endorphin was measured by radioimmunoassay in venous plasma of 43 pregnant women during pregnancy, 33 pregnant women during labor, and 21 pregnant women submitted to emergency or elective cesarean section prior to induction and immediately after fetal extration. The venous plasma samples of 21 nonpregnant women were taken as control. The results were as follows: 1. The mean maternal plasma -endorphin level was not changed significantly during pregnancy and was slightly increased in pregnant women than in nonpregnant women. 2. The mean maternal plasma -endorphin level increased significantly during the first stage of labor than in the third trimester of pregnancy. As labor progressed, the mean maternal plasma -endorphin level increased furthermore, peakde at the second stage of labor, and thereafter declined to the level of the first stage of labor. 3. There were no significant differences in the mean maternal plasm -endorphin levles between spontaneous and oxytocin-induced labor and delivery. 4. The mean maternal plasma -endorphin level in emergency section group after fetal extraction was significantly higher than that in the elective section group, but there was no significant difference in the mean maternal plasma -endorphin level among the spontaneous delivery group, the vacuum extraction group and the cesarean section group. 5. No significant difference was found in the mean maternal plasma -endorphin levels of women underwent emergency or elective cesarean section prior to induction of anesthesia and immediately after fetal extraction.

자궁내막증환자의 맹낭액내 프로스타글란딘 농도에 관한 연구

정동근(DK Chung),이진용(JY Lee) 대한산부인과학회 1988 Obstetrics & Gynecology Science Vol.31 No.10

자궁내막증환자의 맹낭액 양과 맹낭액내 프로스타글란딘 농도 변화의 유무와 또한 자궁내막 증의 정도와 맹나액 양 및 프로스타글란딘 농도 사이의 연관을 규명하기 위하여 진단복강경 을 이용하여 자궁내막증환자 20명과 정상복강경 소견을 보인 불임환자 19명을 대상으로하여 맹낭액을 채취하여 맹낭액의 양 및 맹낭액내 프로스타글란딘 농도를 측정 비교하여 다음과 같은 결론은 얻었다. 1. 자궁내막증환자의 맹낭액 양은 대조군에 배하여 유의한 차이가 없었으나 다만 양군에서 모두 난포기와 배란주위기에 비하여 황체기에 맹낭액 양이 유의하게 증가하엿다. 2 자궁내막증환자에서 프로스타글란딘 농도는 대조군과 유의한 차이를 발견할 수 없었으며 또한 자궁내막증의 정도와 프로스타글란딘 농도의 연관은 없었따. 다만 자궁내막증 제 2기 환자의 맹낭액내 6-keto-PGF1a의 농도는 대조군에 비하여 유의하게 증가하였다. 3. 맹낭액내 프로스타글란딘 전체 양도 양군에서 차이가 없었다. 4. 자궁내막증군과 대조군에서 모두 월경주기에 따른 맹낭액내 프로스타글란딘 농도는 유의 한 변화가 없었고, 각 월경주기에서 양군의 프로스타글란딘 농도에 유의한 차이가 없었다. 이상의 결과로 경미한 자궁내막증 환자에서 불임의 기전으로써 프로스타글란딘이 어떠한 역 할을 할 것이라는 추론에도 불구하고 직접적인 관계를 규명할 수 없었다. 따라서 자궁내막 증올 인한 불임에서 프로스타글란딘의 역할에 대한 연구가 더욱 필요할 것으로 사료된다. The association between endometriosis and infertility is well known but the mechanism whereby minimal or mild endometriosis renders a women infertile is obscure. The purpose of this study was to determine whether the volume of Cul-de-sac fluid and concentration of certain prostanoids were changed in women with endometriosis and to determin whether a direct relationship existed between the extent of disease and fluid volume or prostanoid concetraion. Women with laparoscopically proved endometriosis stage I(n=12)and stage II(n=8), were included in this study . The control group (n=19) consited of those patients with infertility without evidence of a peritoneal factor. The volume of Cul-de-sac fluid of women with endometriosis was not significantly difference from that obtained from diseases-free women. Throughout the menstrual cycle a significantly greater volume of Cul-de-sac fluind was obtained from patients with endometriosis and disease-free women in luteal phase than in follicular or periovulatory phase . Cul-de-sac fluid prostanoid concetrations in women with endometriosis were not significantly difference from those of the control group . Furthermore meaningful elevation of prostanoid with severity of disease could not be demonstrated. However the concentration of 6-keto PGF a was significantly higher in patients with stage II endometriosis than in control subject . we noted no significantly difference of total Cul-de-sac fluid contents of prostanoids between two group . we also found no significantly cycle variation in prostanoid levels within each group of patients . No significantly difference was demonstrated in prostanoid level between two group within each phase of the menstraul cycle . Despite the attractive concept that prostanoids may play a local role in the mechanism of ifertility no direct causal relationship has been demontrated to date. The role of prostaglandins in case of endometriosis-induced infertility required further investigation.

Krukenberg 종양의 4예

강대경(DK Kang),김성환(SW Kim),김인식(IS Kim),정재훈(JH Chung) 대한산부인과학회 1973 Obstetrics & Gynecology Science Vol.16 No.7

We have experienced 4 cases of Krukenberg`s tumor of ovary during 5 years survey from Jan. 1967 to Jan. 1971. in Maryknoll Hospital. Krukenberg`s tumor are generally believed that it is almost metastatic tumor from G.I. tract or breast, but Novak have pointed that about 20 percent seem primary in nature. In our cases, 3 cases have distinct origin and one can`t find accurate original site. And here we represent case presentation and review of literature was made briefly.