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강혁주,김성욱,최석진,이중현,장재식,서영범,윤병구,박건욱,김성자,김용섭,강승완,이구,양창헌,이창우,김욱년,이광헌,서정일 동국대학교 의학연구소 2000 東國醫學 Vol.7 No.-
과립상 세포종은 Schwann 세포 기원으로 생각되며 인체에 비교적 드물게 발생한다. 과립상 세포종은 전신 어느 곳에서나 발견될 수 있으나 주로 혀, 구강, 피부 혹은 유방 등에서 호발하며 드물게 위장관에서 발견된다. 위장관에서는 식도에서 가장 호발하며 다음으로 위, 대장 순이다. 과립상 세포종은 대부분, 특히 위장관에서는 양성이며 소수의 악성 병변이 보고되었다. 이러한 이유와 함께 수술 전의 진단이 어렵기 때문에 과립상 세포종에 대한 근본적인 치료는 현재까지 외과적 절제술이다. 최근에 시도되는 치료방법들로는 내시경적 레이저 치료, 용종절제술, 내시경적 점막 절제술 등이 있다. 저자들은 상부 소화관 내시경검사를 시행하여 식도 과립상 세포종을 진단하고 내시경적 점막 절제술을 시행하여 합병증 없이 퇴원하여 현재 재발없이 경과 관찰중인 1례를 경험하였기에 보고하는 바이다. Granular cell tumors, which occur infrequently, are probably of Schwann cell origin. They can occur almost anywhere in the body but usually affect the tongue, oral cavity, skin, or breasts and are rarely found in the gastrointestinal tracts. The esophagus is the most frequent gastrointestinal site, followed by the stomach and the colon. Granular cell tumors are generally benign, especially in the gastrointestinal tract, some malignant lesions have been reported. For this reason, and also because preoperative diagnosis is difficult, the standard treatment for granular cell tumor has until now been surgical excision. In recent years, other therapeutic methods is endoscopic laser therapy (ELT), polypectiomy, endoscopic mucosal resection (EMR). We report a case of esophageal granular cell tumor which was diagnosed by an endoscopy and managed using an endoscopic mucosal resection without complication.
Pregnancy and Neonatal Outcomes of Group B Streptococcus Infection in Preterm Births
( Yae Heun Lee ),( Yoo Jung Lee ),( Sun Young Jung ),( Suk Young Kim ),( Dong Woo Son ),( Il Hye Seo ) 대한주산의학회 2018 Perinatology Vol.29 No.4
Objective: This study examines whether maternal group B Streptococcus (Streptococcus agalactiae, GBS) infection was associated with preterm births and premature neonatal outcomes. Methods: Maternal and neonatal outcomes were examined among singleton pregnant women with preterm birth (from 24<sup>+0</sup> weeks to 36<sup>+6</sup> weeks) who were tested for GBS (n=203) during the pregnancy. Data were collected retrospectively from the medical records of women who delivered at our hospital from January 2015 to February 2017. We compared obstetrical factors (causes of preterm birth) and neonatal (gestational age at delivery, birth weight, Apgar score 1 min/5 min, hospitalization period, duration of mechanical ventilation, neonatal C-reactive protein within three days, and other complication [respiratory distress syndrome, neonatal deaths]) outcomes between GBS-infected and non-infected pregnant women. Results: There were 203 singleton pregnant women included in the study, 25 of whom were confirmed to have a GBS infection during the pregnancy. There was no difference in neonatal outcomes by GBS status. Preterm premature rupture of membranes (pPROM), as an obstetric factor, was associated with GBS infection (P=0.022). GBS infection raised the risk of pPROM by 3.6 times (odds ratio 3.648, 95% confidence interval 1.476-9.016, P=0.005). Conclusion: GBS infection in preterm birth was associated with pPROM but did not result in adverse neonatal outcomes. Continuous attention and evaluation of GBS infection, a major cause of neonatal sepsis and pneumonia, are needed.
Hyang Heun Lee,HyeWon Youm,Jung Ryeol Lee,Byung Chul Jee,Chang Suk Suh,Seok Hyun Kim 한국발생생물학회 2014 한국발생생물학회 학술발표대회 Vol.2014 No.9
The aim of this study was to analyze the effect of antifreeze proteins (AFPs) on vitrification of mouse mature (MII) oocytes. We studied about 3 types of AFPs from different origins (FfIBP, LeIBPand Type III AFP). The MII oocytes were obtained from 4-week-old BD-F1 mice. Vitrification of oocyte was performed by 2 steps using the Cryotop (equilibration: 7.5% EG + 7.5% PROH for 5 min, vitrification: 15% EG + 15% PROH + 0.5M sucrose for 1 min). The concentrations of AFPs added to these solutions were 0.05 mg/ml for FfIBP and 0.1 mg/ml for LeIBP and Type III AFP. After fertilization, embryo development was assessed up to 5 days. Through immunostaining of vitrified-warmed oocytes, we assessed the normal meiotic spindle. Also, intracellular ROS and mitochondrial activity was analyzed. In the developmental stages, FfIBP and LeIBP groups showed significantly higher survival rates. In the blastocyst and apoptotic blastomere rates were significant differences in AFPs treated groups. AFPs treated groups were significantly higher in blastocyst cell numbers than control group. Among the AFPs treated groups, FfIBP, LeIBP groups were significantly higher rates. And, in cleavage rates, FfIBP group was significantly higher rates than the other groups. In vitrified-warmed MII oocytes, the normal meiotic spindle organization and chromosome alignment rate was significantly higher in FfIBP and LeIBP groups. And in intracellular ROS levels, control group was significantly increased than AFPs treated groups. However, in the mitochondrial activity, LeIBP group was significantly higher than control, FfIBP and LeIBP groups. AFPs treated groups were significant differences in development, meiotic spindle organization and intracellular ROS levels. And in the AFPs treated groups, FfIBP and LeIBP groups were significantly higher rates in normal meiotic spindle and mitochondrial activity than Type III AFP group respectively. In conclusion, FfIBP and LeIBP can be thought to improve oocyte cryopreservation efficiency.
서해안 양식장에서 분리한 Edwadsiella tarda의 특이 bacteriophage 특성
이찬흔 ( Chan Heun Lee ),허용주 ( Yong Ju Heo ),백민석 ( Min Suk Baek ),이정은 ( Jung Uen Lee ),강자영 ( Ja Young Kang ),한미정 ( Mi Jung Han ),경서봉 ( Se Bong Kyoung ),최상훈 ( Sang Hoon Choi ) 한국어병학회 2011 한국어병학회지 Vol.24 No.2
Edwardsiella tarda is a broadly infectious agent against freshwater and seawater fishes. In the present study, E. tarda specific phage was isolated from fish farms on the west coast of Korea, and the effect of environmental factors such as pH and water temperature on the phage activity was investgated. As a fish model, Nile tilapia (Oreochromis niloticus) was used and the interaction between E. tarda and phage was investigated. The phage activity, in pH test, appeared even higher in seawater than freshwater and was evenly constant up to 50℃. The phage and E. tarda were inoculated in tilapia and the phage activity and E. tarda viability were checked on the time intervals. As a result, the number of E. tarda in the group of E. tarda plus phage was constantly reduced to 24 hr post-inoculation compared to the control group without phage, whereas the phage activity was slightly increased in the experiment group. The results suggest that it might be possible to use phage to control the fish disease caused by E. tarda.
루소(J.J Rousseau)의 自然主義的 體育觀에 關한 考察
이정흔,현광석,김용진 忠南大學校體育科學硏究所 1994 體育科學硏究誌 Vol.12 No.1
We can find that Rousseau's thought of education is developed into the naturalism and training. To see his ideal concering physical education described in Emile, the training of the body offers the mental health. In addition, the function on the physical sense and power of the judgement has to be trained harmoniously. He stressed that the curiosity of sex should be diverted by exercising his body in vigorous physical pursuit and emphasized the lifelong activity because the training of the body, the recreation, and the abstinence would protect him form aging. In addition, he stressed the necessity of woman physical education and one of adult physical education for a happy domesticity. The purpose of natural physical education would train the child for domestic citizenship built the body and mind through the physical training, mamely, adequate motor skills, recreations, and health educations. Tradional subject matter was rejected by Rousseau. The studies in his naturalistic curriculum were selected to harmonize with the social, physical, and intellectual development. He practised the naturalistic learning process in fit for each stage after dividing the development stages into five stages. So, he educated the child to be growing in accordance with in ones own fashion. We found the significant facts that through the naturalistic movement the effects of physical philosophy on the contemporary education would provide for the detection of self-consciousness, self-expression, and self-realization.
이정흔,염동삼,현광석 忠南大學校體育科學硏究所 1996 體育科學硏究誌 Vol.14 No.1
I have studied abut about the measure of dispersion indicating relationship between angle of incidence and distance in throwing balls. We made four groups for experiment of this study; It classfied two sets, ono is two groups consisted of college men and women who had experienced throwing balls, the other is two groups con-sisted of men and women who had no experiences. Each group is limited in ten members. After we have studied, we obtained following condlusion. It have been emphasized to raise the speed/sec of incidence for improving throwing ability, but in case of women who had no particular experience, in must be emphasized to throw balls at relevant angle of incidence incase of in structing women.