정신과에서의 뇌파

전태연,양완석,이경욱,채정호 한국의학사 2004 診斷과治療 Vol.24 No.1

대장암종에서 암관련 유전자들의 Promoter Methylation과 암종 발생 및 진행과의 관게에 대한 연구

정동준,이정은,민영기,조성우,백무준,양승하,김의한,김창진 순천향대학교 교수학습개발센터 2004 Journal of Soonchunhyang Medical Science Vol.10 No.3

The colorectal corcinoma is one of the most common malignant tumor in Korea and its carcinogenic mechanism has not been elucidated exactly yet. So far, the most common carcinogenic mechanism has been known to be multiple genetic changes. But, the CpG island hypermethylation has been revealed to be one of the most important carcinogenic mechanism second to the genetic changes. The epigenetic changes characteristically imprint and transfer to the next generation without changes of nucleotide sequences. When the CpG island of promoter or 5'- exon 1 of a specific gene is methylated by DNA methyltrasferases (DNMTs), the gene expression is inhibited. Carcinogenic mechansisms by promoter methylation has been well known, but the progression of the cancer has not been elucidated yet. The molecular researches on the carcinogenic mechanisms largely depended on the tumor tissue containing various components of cell, due to difficulties in harvesting pure homogeneous tumor cells. Promoter methylatonof the cancer related genes as APc, hMLH2, p16, DAP-K and MGMT in 50 cases of sporadic colorectal carcinoma was studied. The pure normal colorectal epithelial cells, and cancer cells from superficial and deep invasive portion were harvested respectively by laser captured microdissection(LCM), and DNA was extracted from them. The promoter methylation was studied by methylation specific poymerase reaction (MSP) after bisulfite modification of the DNA and the expression of the genes by immunohistochemistry. The results suggests that promoter methylation of the cancer related genes are closely related with the colorectal carcinogenesis and it occurrs from early phase of carcinogenesis, progressing constantly to the late stage. And the promoter methylation of normal epithelial cells increased by age. The p15, known to be the genes related to hematologic malignancy, was closely related to the colorectal carcinoma as well.

내시경적 점막절제술 후 발생한 위천공의 성공적인 보존적 치료 1예

양정채,박은하,이준행,이풍렬,김재준,백승운,이종철 대한내과학회 2004 대한내과학회지 Vol.66 No.5

위장관 천공은 내시경적 점막절제술 후 발생할 수 있는 중대한 합병증으로 현재까지 이에 대한 치료 방법은 정립되지 않은 상태이다. 본 증례는 점막층에 국한된 위선암에 대한 내시경적 점막절제술 후 위천공이 발생한 경우로서 아주 작은 미세천공(microperforation)이었고, 최근 시도되고 있는 내시경적 클립 시술의 적응이 되지 못했다. 하지만 임상적인 복막염 발생 및 진행의 징후가 보이지 않아 금식, 광범위 항생제 투여 등의 보존적 요법으로 치료를 시행하였고, 시술 일주일 후 복막염의 발생이나 진행 없이 호전되어 퇴원하였다. 본 증례는 내시경적 점막절제술 후 발생한 미세 천공의 제한적인 경우에 한하여 수술이나 내시경적 치료를 하지 않고 보존적 요법만으로 성공적인 치료를 시행한 예로 문헌고찰과 함께 보고하는 바이다. The serious complication after endoscopic mucosal resection (EMR) was bleeding and perforation. Most of bleedings could be controlled by endoscopic procedure. However, the strategy of treatment for perforation was not established. A 60- year-old man was admitted to our center for EMR of gastric adenomatous lesion. After EMR, perforation in stomach was detected by peumoperitoneum on plain upright chest X-ray. We treated with conservative management such as withholding of oral intake, adminstration of broad-spectrum antibiotics, parenteral nutrition and close monitoring. There were no worsening clinical sings of peritoneal inflammation except mild leukocytosis during the in-hospital course. On the third hospital day after EMR, the patient resumed oral intake. The seventh hospital day, he was discharged. Our experience showed that selected small microperforation in stomach after EMR could be treated by not endoscopic procedures or surgical interventions but conservative management.

열대지방사람들의 땀샘의 밀도와 기능

이정범,배준상,민영기,양훈모 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.1

Tropical inhabitants are able to tolerate heat through permanent residence in the tropics. To clarify the peripheral mechanisms of the suppressed thermal sweating in tropical natives, sweating responses to acetylcholine (ACh), a primary transmitter of the sudomotor innervation, were compared between healthy Korean and African males. ACh was iontophoretically administered on the forearm. Directly activated and axon reflex-mediated sweat responses were evaluated by quantitative sudomotor axon reflex test (QSART). The sweating of axon reflex (nicotinic receptor) onset-time was 0.42 min shorter (P<0.01) and the sweat volumes (muscarinic receptors) were 75% (P<0.01) and the ACh sweat volumes of axon reflex (nicotinic receptor) 79% higher (P<0.01) in the Koreans than the Africans. Iodine-impregnated paper method revealed that sweat gland density was 45.1% higher (P<0.01) and sweat gland output per single gland was 18.4% larger (P<0.001) in the Koreans compared to the Africans. These results indicate that suppressed thermal sweating in Africans is, at least in part, attributed to the suppressed glandular sensitivity to ACh through both recruitment of sweat glands and sweat output per each gland.

충수염의 임상적 고찰과 초음파의 유용성

박정배,양혁준,김형수,황성연,박철완,이근 대한응급의학회 1995 대한응급의학회지 Vol.6 No.2

Appendicitis is the most common acute abdomen in Emergency Medical Center & outpatient department. But sometimes, it is difficult for us to diagnose because of clinically variable symptoms. We reviewed the ultrasonographic findings and analyse 521 cases of appendectomy patients about its distribution of sex and age, seasonal prevalence, clinical symptom and signs, laboratory findings, duration from onset of symptom to arrival at hospital, duration from arrival at hospital to operation, vital signs, operative results, and associated diseases, which were treated at the department of General Surgery & Emergency Medical Center in Chung Ang Gil Hospital from July, 1994 to June, 1995. The results were as follows : 1. The most common age group was second decade. And male to female ratio was 1.43:1. Seasonal variation was not significant. 2. Of 521 cases, 141 cases(27.1%) visited the hospital within 24 hours from the onset of symptom, and 259 cases(49.7%) visited between 24 to 48 hours. 3. In duration from arrival to operation, the cases within 6 hours were 263 (50.5%), the cases between 6 and 12 hours were 131(25..1%). 4. In systolic blood pressure, cases below 90mmHg were 19(3.6%), cases above 160mmHg were 23(4.4%). Below 60mmHg diastolic pressure were 55 cases(10.6%), cases above 110mmHg were 9(1.7%). In pulse rate, above 90 rate/min were 171(32.8%). 5. On admission leukocytosis was found in 413 cases(79.3%) and 342 cases of them were pathologic appendicitis. 6. Ultrasoundgraphy was performed in the 87 cases, but 23 cases were suggested appendicitis. Among 23 cases, 22(95.7%) revealed pathologic appendicitis at ooperation and labortatory examination. Of the 64 cases which were normal on ultrasonography, only 2 cases(3.1%) were proved to be appendicitis. 7. The results of 496 operations without ultrasonography were appendicitis in 390 cases(78.6%), mesenteric lymphadenopathy 36(7.3%), pelvic inflammatory disease 28(5.6%), fecalith 15(3.0%), terminal ileitis 8(1.6%), diverticulitis 7(1.4%), urinary tract stones 5(1.0%), cecal cancer 2 cases, right ovarian tumor 2 cases, tubo-ovarian abscess 2 cases, grater omentum internal hernia 1 case. Our results showed that the sensitivity of ultrasonohraphy was 95.8% and the specificity 98.4% in the diagnosis of appendicitis, It suggests that the ultrasonography is very helpful in the diagnosis & differential diagnosis of acute appeendiditis.

인공 산성비 용액 함침 및 경사평면법에 의한 옥외용 실리콘 고무의 열화 특성 평가

김정호,정규원,유영식,양계준,박용관 成均館大學校 科學技術硏究所 1999 論文集 Vol.50 No.1

We investigated the effect of acid rain on the surface aging, and resistance to tracking and erosion of silicone rubber materials : First, we measured the contact angle, SEM, EDX, and weight reduction to investigate the surface aging caused by immersion in the artificial acid rain solution. From the results of a series of experiments, we concluded that the acid rain attacked the base polymer of the surface, and lead to the depolymerization. Second, we adopted Inclined-Plane Method to measure the resistance to tracking and erosion of silicone rubber, and rather not observably affected the immersed specimen in the tracking resistance than in the erosion resistance.

원격 체육수업 콘텐츠 개발 방향 연구

유창완,양종현,박정준 이화여자대학교 교과교육연구소 2021 교과교육학연구 Vol.25 No.3

The purpose of this study is to provide a direction for developing content to be utilized in online physical education( PE) class situations. Four faculty members and four school sports content production experts produced examples of content development after identifying the forms and difficulties of PE curriculum analysis, online PE class content analysis, and online PE classes. The principles and methods for restructuring the areas of PE curriculum and achievement criteria were adjusted from five to four, and achievement criteria were restructured in the categories of ‘maintenance’, ‘integration’, ‘modification’ and ‘movement’. Examples of physical activities were selected to develop content for online PE classes, and details of content development examples were defined, including topics for each unit, major learning activities, teaching and learning strategies, and evaluation methods. The direction of future development of contents for online PE classes is as follows. First, the PE curriculum should be restructured following the proportion of online PE classes. Second, while utilizing ‘modified physical activity’ to be carried out in online PE classes, it should be aligned to existing physical activities. Third, it should be developed as ‘real-time interactive’ content rather than one-way video content. It is required to establish an online evaluation system in the future and adopt diversified ways to reflect performance evaluations. 본 연구의 목적은 원격 체육수업 상황에서 활용할 콘텐츠 개발 방향을 제시하는 데 있다. 4명의 교수진과 4명의 학교체육 콘텐츠 제작 전문가가 체육과 교육과정 분석, 원격 체육수업 콘텐츠 분석, 원격 체육수업의 형태 및 어려움 등을 파악하고 콘텐츠 개발 예시를 제작하였다. 체육과 교육과정의 영역과 성취기준의 재구성 원칙과 방법을 구안하여, 영역은 5개에서 4개로 조정하고, 성취기준은 ‘유지’, ‘통합’, ‘수정’, ‘이동’ 의 방식으로 재구성하였다. 원격 체육수업 콘텐츠 개발을 위해 신체활동 예시를 선정하고, 단원별 주제, 주요 학습 활동, 교수·학습 전략, 평가 방법이 포함된 콘텐츠 개발 예시를 상세화하였다. 향후 원격 체육수업 콘텐츠 개발 방향은 첫째, 체육과 교육과정은 원격 체육수업 비중에 따라 재구성해야 한다. 둘째, 원격 체육수업에서 수행할 ‘변형 신체활동’을 활용하되, 기존 신체활동과 연계성이 있어야 한다. 셋째, 일방향의 동영상 콘텐츠 활용형보다는 ‘실시간 쌍방향형’ 콘텐츠로 개발해야 한다. 향후 온라인 평가 시스템을 구축하고, 수행평가를 반영할 수 있는 방법을 현재보다 다양화해야 한다.

경골 Pilon 골절의 수술적 치료 : 제한적 내고정술을 겸한 외고정술과 관혈적 정복 및 내고정술의 비교 Comparison of Limited Open Reduction and External Fixation with Open Reduction and Internal Fixation

황득수,양준영,정제택 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.2

The pilon fracture result from axial compression and rotational forces causing variable degrees of metaphyseal disruption, articular damage and malleolar displacement. It's managements are closed reduction and plaster immobilization, skeletal traction, fibular stabilization alone, limited open reduction and external fixation, open reduction and internal fixation, primary arthrodesis, and even immediate amputation. Recently limited open reduction and external fixation has been proved to provide good clinical results for the severely comminuted or open pilon fractures. Authors reviewed eighteen cases of the pilon fractures from March 1991 to February 1997. Among them eight cases were treated with limited open reduction and external fixation, and ten cases were treated with open reduction and internal fixation. In conclusion, limited open reduction and external fixation has shown better results than open reduction and internal fixation in severely comminuted or open pilon fractures for wound healing and preventing of other complications.

정신분열병 환자에서 리스페리돈의 투여에 따른 혈청 코티졸과 임상증상의 변화

김광수,성양숙,채정호,박원명,이정태,전태연 대한신경정신의학회 2000 신경정신의학 Vol.39 No.2

연구목적: 세로토닌 5HT₂수용체의 자극이 코티졸 분비를 증가시킨다는 점에서, 강력한 5HT₂길항제인 risper-idone은 정신분열병에서 보이는 시상하부-뇌하수체-부신축의 과활성화에 대하여 영향을 미칠 것이라고 생각되었다. 저자들은 세로토닌 5HT₂길항제인 risperidone에 의한 코티졸의 양적변화를 통하여 신경 생리학적인 변화를 추적하고 나아가 정신분열병의 병태생리에서 세로토닌과 코티졸의 병리학적 역할에 대하여 알아보고자 하였다. 방법: 본 연구는 카톨릭대학교 성모병원 신경정신과에 입원했던 DSM-Ⅳ 진단기준에 의한 정신분열병 환자 17명(남자 10명, 여자 7명)을 대상으로 정하였다. 채혈(4ml/sample)은 투약 전, 첫째, 둘째, 셋째, 십사일째, 이십팔일째, 사십이일째 병일에 각각 오전 8시와 10시에 두 번씩 하였으며, 오전 8시에 1차 채혈을 시행한 후 투약하고 그 2시간 후인 10시에 2차 채혈을 시행하였다. 혈청 코티졸치의 측정은 표준 이중항체 방사면역분석법으로 시행하였다. 결과: 1) 투약 전 코티졸치와 risperidone을 투여한 후의 코티졸치의 비교에서 혈청 코티졸치는 risper-idone의 투여에 의해 유의하게 감소하였다.(p<0.05). 2) Risperidone의 투약 전후의 평균 PANNS 점수는 양성증상점수(21.7±3.8, vs 11.4±3.0), 음성 증상점수(20.5±5.2, vs 14.6±2.8), 일반증상점수(44.3±5.4, vs 30.9±6.0)로 나와 유의한 감소가 있었다(p<0.05). 3) 남자와 여자의 투약 전 혈청 코티졸치는 차이가 없었으며 risperidone을 투여한 후 혈청 코티졸치의 감소정도도 성별에 따른 차이가 없었다. 4) 음성아형군과 양성아형군 간의 투약 전 혈청 코티졸치는 차이가 없었으며 risperidone을 투여한후 혈청 코티졸치의 감소도 아형에 따른 차이가 없었다. 결론: 이상에서 세로토닌 5HT₂길항제인 risperidone은 코티졸을 감소시키며 코티졸의 감소는 그 자체가 정신분열병의 치료에 있어서 중요한 요소가 될 수 있을 것으로 생각되었다. 또한 이점이 기존의 전형항 정신병약과는 구별되는 세로토닉 5HT₂수용체 차단에 의한 이득효과를 설명할 수 있을 것으로 보았다. Objectives: This study was designed to identify the role of serotonin and cortisol in the pathophysiology of schizophrenia by measuring quantitative change of serum cortisol levels after risperidone(5HT₂antagonist) administration. Methods: Subjects included 10 male and 7 female patients who met DSM-Ⅳ criteria for schizophrenia(n=17). Blood samples(4ml/sample) were taken at the baseline, 1st, 2nd, 3rd, 14th, 28th and 42nd days, twice, at 8:00 AM and t 10:00 AM in the morning after an overnight fast. The daily medication was administered after the first blood sampling at 8:00 AM. After basline sampling, the same dose of risperidone was administered to each patient until the end of the 3rd day. The dose of riperidone was then decided by clinical evaluation. Serum cortisol concentrations were measured by standard double-antibody radioimmunoassay. Results: 1) Administration of risperidone significantly decreased serum cortisol levels(p<0.05). 2) There were significant reductions in positive symtom scores(21.7±3.8, vs 14.3±4.() and negative syaprom scones. 20.5 5.2, vs 15.2±3.2), general symptom scores(44.3±5.4, vs 32. 9±4.2) of PANSS after risperidone administration(p<0.05) 3) There were no significant differences in baseline serum cortisol levels and the reductions of serum cortisol levels after administration of risperidone between males and females. 4) There were no significant differences n baseline serum cortisol levels and the reductions of serum cortisol levels after administration of risperidone between positive symptom subgroup and negative symptom subgroup. Conclusions: These results suggest risperidone decreases serum cortisol levels in schizophrenic patients and the reduction of cortisol by risperidone administration might be important factor in the treatment of schzophrenics, in contrast with typical antipsychotics. KEY WORDS: Risperidone·Schizophrenia·Cortisol·Gender·Positive/Negative subtype.

육우 비선호 부위를 활용한 육우햄의 품질특성

이주호, 최정석, 정준영, 최양일 忠北大學校 農業科學硏究所 2012 農業科學硏究 Vol.28 No.3

This study was undertaken to compare the quality characteristics of dairy beef ham. Dairy beef hams were manufactured using non-preferred portion (top round). 5 treatments were prepared: T1(beef 50% + pork emulsion 50%), T2(beef 65%emulsion 35%), T3(beef 80%emulsion 20%), T4(beef 90%emulsion 10%), T5(beef 100%emulsion 0%). In chemical composition, dairy beef content increases, moisture content was increased, fat content was decreased. In the meat quality characteristics, T5 showed higher (p<0.05) water holding capacity value than the others. Dairy beef content increases, product loss and cooking loss were decreased. In hunter color, dairy beef content increases, redness was increased. In texture profile analysis, T4 and T5 were significantly higher than the others. As a result, dairy beef ham with 80~90% dairy beef and 10~20% pork emulsion has low fat content, high product yield and superior texture profile, which could be developed as a dairy beef hams using non-preferred portion.