관동맥질환에서 저밀도 지단백 입자 크기의 분포

임효영,김인숙,승기배,강동헌,전두수,장기육,박준철,이수영,홍순조,최규보 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.8

재발성 류마티즘 환자에서 발작의 유발인자

주유철,이동민,양종태,신병철,임태영,서정균,정기영,최동헌,김원,조영신,고희관 조선대학교 2001 The Medical Journal of Chosun University Vol.26 No.2

Background and Objectives : Palindromic rheumatism (PR) is known to be triggered without any obviously inciting events in most patients, although, in a few cases, attacks have been noted to relate to another events such as weather change, childbirth, ingestion of certain foods, or over-exercise. The aim of this study was to characterize the triggering factors on palindromic attacks. Materials and Methods : We evaluated sixty-four patients with PR for the presence of triggering factors and the relationship between attacks and triggering factors by interview of patients. We considered that there was an probable association between episodes and PR, if episodes within 24 hours prior to PR had triggered at least 50% of all attacks and a definite association between episodes and PR, if episodes within 24 hours prior to PR had triggered 100% of all attacks. Results : In 15 patients (35.9%), there was a possible association between episodes of PR and initiating events. In 8 patients (12.5%), there was a definite association between episodes of PR and initiating events. The triggering factors were physical over-activity including exercise (19/64: 29.7%), foods, such as rawfish, crab, and chicken, including alcohol (19/96: 19.8%). However, there were no difference between the groups with and without the triggering factor in sex ratio, duration and onset of PR, the positive rate of rheumatoid factor and involved sites. Conclusion : Our observations showed that PR was triggered by physical over-activity more than in previous reports and hypersensitivity to foods was a causative factor in some patients with PR. However, patients with triggering factors had a similiar clinical profile to patients without triggering factors.

정신분열병에 대한 리스페리돈의 효과 및 안정성

이민수,김용구,김영훈,연병길,오병훈,윤도준,윤진상,이철,정희연,강병조,김광수,김동언,김명정,김상훈,김희철,나철,노승호,민경준,박기창,박두병,백기청,백인호,손봉기,손진욱,양병환,양창국,우행원,이정호,이종범,이홍식,임기영,전태연,정영조,정영철,정인과,정인원,지익성,채정호,한상익,한선호,한진희,서광윤 大韓神經精神醫學會 1998 신경정신의학 Vol.37 No.1

연구목적 : 본 시험의 목적은 임상시험 시작전에 연구자들을 대상으로 PANSS Workshop을 통하여 PANSS, ESRS에 대한 국내에서의 표준화 작업을 구축하고 새로운 정신병 치료제인 리스페리돈의 효과와 안정성을 재확인하여 리스페리돈 사용에 대한 적정화를 이루는데 있다. 연구방법 : 1996년 4월부터 1996년 9월까지 국내 39개 대학병원 정신과에 입원중인 혹은 증상이 악화되어 입원하는 정신분열병 환자 377명을 대상으로 다시설 개방 연구를 시행하였다. 1주일간의 약물 배설기간을 가진후, 리스페리돈을 8주간 투여하였고, 기준점, 1주, 2주, 4주, 그리고 8주후에 평가되었다. 용량은 제1일에는 리스페리돈 1mg씩 1일 2회, 제2일에는 2mg씩 1일 2회, 제3∼7일에는 3mg씩 1일 2회 투여하였다. 이후 환자의 임상상태에 따라 임의로 증량할 수 있으며, 최대 일일 16mg을 초과하지 않도록 하였다. 추체외로 증상을 조절하기 위한 투약을 허용하였다. 임상증상 및 부작용의 평가는 PANSS(Positive and Negative Syndrome Scale), CGI(Clinical Global Impression) 그리고 ESRS(Extrapyramidal Symptom Rating Scale)을 사용하였다. 연구결과 : 377명중 343명(91%)이 8주간의 연구를 완결하였다. 치료 종결시점인 8주후 PANSS 총점수가 20% 이상 호전된 경우를 약물 반응군으로 정의할때, 약물반응군은 81.3%였다. 리스페리돈에 반응하는 예측인자로는 발병연령, 이전의 입원 횟수, 유병기간이 관련 있었다. 리스페리돈은 1주후부터 PANSS양성, 음성, 및 일반정신병리 점수상에 유의한 호전을 보여 효과가 빨랐다. CGI의 경우도 기준점에 비해 1주후부터 유의한 감소를 나타내었다. ESRS의 경우, 파킨슨 평가점수는 기준점과 비교해 투여 1주, 2주, 4주후 유의하게 증가되었다가 8주후 기준점과 차이가 없었다. Dystonia 평가점수는 1주후만 유의한 증가를 보였으며, dyskinesia 평가점수는 유의한 차이가 없었다. 혈압, 맥박수의 생명징후 및 일반 혈액학 검사, 생화학적 검사, 심전도 검사에서 유의한 변화는 없었다. 결 론 : 이상의 다시설 개방 임상 연구를 통해 리스페리돈은 정신분열병 환자에서 양성증상뿐만 아니라 음성증상 및 전반적인 증상에도 효과적인 것으로 사료된다. 보다 명확한 평가를 위해서는 다른 항정신병약물과의 이중맹검 연구가 필요할 것으로 생각되며, 또한 장기적 치료에 대한 평가도 함께 이루어져야 하겠다. Objective : The purpose of this study was to investigate the efficacy and safety of risperidone in the treatment of Korean schizophrenic patients. Method : This multicenter open study included 377 schizophrenic patients drawn from 39 university hospitals. After a wash-out period of 1 week, the schizophrenic patients were treated with risperidone for 8 weeks and evaluated at 5 points ; at baseline, and 1, 2, 4 and 8 weeks of treatment. The dose was increased from 2mg/day(1mg twice daily) to 6mg/day(3mg twice daily) during the first week and adjusted to a maximum of 16mg/day over the next 7 weeks according to the patient's clinical response. Medication to control extrapyramidal symptoms was permitted. The psychiatric and neurological status of the patients was assessed by PANSS, CGI, and ESRS scales. Results : 343(91%) of 377 patients completed the 8-week trial period. Clinical improvement, as defined by a 20% or more reduction in total PANSS score at end point, was shown by 81.3% of patients. The predictors of response to risperidone were associated older age, shorter duration of illness, fewer previous hospitalization. Risperidone had rapid onset of action ; a significant decrease of the total PANSS and three PANSS factor(positive, negative, general), and CGI was already noticed at the end of first week. For the ESRS, parkinsonism rating scores were significantly increased until week 4 comparing with baseline. Dystonia rating scores were significantly increased until week 1, and dyskinesia rating scores were not significantly changed during the study. Laboratory parameters including vital sign, EKG, hematological, and biochemical values showed no significant changes during the trial. Conclusions : This study suggests that risperidone is generally safe and effective against both the positive and negative symptoms in our group of patients.

새로운 환자표본자료 표본 추출 및 대표성 검증

윤철영,안재준,이경민,최용석,김리현,하대우,유기봉 건강보험심사평가원 2021 HIRA RESEARCH Vol.1 No.2

주류 유통 개선방안 : 도·소매기구를 중심으로 On the Basis of Organizations of Wholesale and Retail Sale

전영길,남기철 한국식품유통학회 2004 食品流通硏究 Vol.21 No.3

This Study is to take out the methods of improvement about the present situations and the problem in our country through the actual proof of liquor wholesale and retail sale which are the core of liquor marketing. The problems of liquor marketing in Korea are as follows. First, unfair trade is done by some liquor manufacturing firms. Second. the steps of wholesale marketing are various and the wholesale market is petty. Third, there are tax dodging trade and some unlicensed seller in the steps of retail sale marketing. Forth, there are the vagueness of the issuing standard of license, the direct sale system of liquor manufacturer, the insufficiency of the regulation of offenders' punishment and the insufficiency of consumers' protection in the relative system. Therefore the following methods of improvement can be suggested for liquor marketing in our country. First. being a large-size merchandising firm and specialization of marketing should be realized. Second, the terms of the present system of license should be reinforced fairly. Third, the regulations of punishment against unlicensed selling agencies and tax evasion agencies should be reinforced and offenders should be regulated strictly. Finally, considering the goods' characteristics that liquor has, the protective movement of consumers should be developed positively.

범주형자료분석에서 최적척도 방법들의 비교연구

최기철,이용구 부산 외국어 대학교 1996 外大論叢 Vol.15 No.1

One of the main interest of categorical data analysis is to find the relationship among the categories and variables. Many statistical methods have been introduced to solve these problems by using the optimal scaling methods, i.e. correspondence analysis, multiple correspondence analysis(homogeneity analysis), and nonlinear principal component analysis, etc. Each method has limitations in the type of data and number of variables. In this paper, we have tried to find the similarity and dissimilarly among the three methods by applying the three methods to artificial data sets.

광주·전남 지역에서 발생한 스포로트리쿰증 103예에 대한 임상적 고찰(1967-1996)

전인기,김훈희,김성진,이승철,원영호 대한의진균학회 1997 대한의진균학회지 Vol.2 No.2

Background : Sporotrichosis is most common deep cutaneous fungal disease in Korea. It is markedly variable in incidence, distribution, and colinical pattern. The epidemiology have been well known to change over years, and to be influenced by environmental condition and geographic location. Sporotrichosis in Kwangju and Chonnam area is more prevalent compared to other areas in Korea. Objective : Our purpose was to describe the prevalence, epidemiological and clinical features, regional distribution and the change of the incidence according to the climate in different regions. Method : the observation of 103 sporotrichosis patients confirmed by clinical, histopathological and mycological studies had been made in the Department of Dermatology at Chonnam National university Hospital for thirty years from 1967 to 1996. Results and Conclusion : The sporotrichosis patient was 0.09% of 108, 680 outpatients, prevalent at the age of thirties and forties(20%), and 3.2:1 in the ration between male and female. The 58% of total cases visited us within 3 months after the beginning of skin lesion. Almost all initial lesions appeared on the exposed areas, especially upper extremities(68%). The 74% of the total cases was lymphocutaneous type, and the rest was fixed cutaneous type. Most popular occupation of patients was farmer(60%). The 69% of patients visited in spring and winter, especially in february(17%). The incidence of sporotrichosis per average 100,000 population in districts of Kwangju and Chonnam area revealed a difference with the amount of rainfall in winter; average 1.8 person in an area above 125㎜,0.8 person in an area between 100㎜ and 125㎜, and 0.2 person in an area below 100㎜ These rsults suggest that the incidence and clinical features of sporotrichosis are influenced by occupations, leisure and occupational activities, living conditions, and the climate.

저속 동영상 부호화를 위한 프랙탈 영상 압축

박용기,정진욱,박철우,김두영 東亞大學校 附設 情報通信硏究所 1997 情報通信硏究所論文誌 Vol.5 No.1

This paper presents a compression technique based on fractal theory for fast encoding and decoding image sequences for very low bit-rates image communication instead of DCT coding which is a standard compression method of moving image used in the H.261. or MPEG. We remove temporal redundancy in interframe of image sequences by moving prediction compensation method and spatial redundancy in intraframe, by fractal theory. In the moving prediction coding, we performed coding for block which have higher threshold values than the allowed ones through the fractal structure of their still images. We also employ domain partitioning and multi-layer block partitioning using edge detection method to enhance the fidelity of reconstructed image, coding speed, and compression rate. We apply this method to moving images used for video telephone and perform simulations. The result of our experiment shows that using fractal structure is better than using DCT structure at low bit-rates such as 4.8-64Kbit/sec.

정신분열병 환자에서 Apolipoprotein E 유전자 다형성

최영숙,임채기,류철형 大韓神經精神醫學會 2001 신경정신의학 Vol.40 No.3

연구목적 : 본 연구에서는 Apolipoprotein E와 정신분열병의 관련성을 알아보기 위하여 정신분열병 환자와 정상인을 대상으로 apolipoprotein E 유전자형과 대립유전자 빈도를 조사하였고 정신분열병 환자군에서는 여러 임상변인에 따른 유전자형의 빈도를 알아보았다. 방 법 ; 정신분열병 환자 101명과 정상대조군 96명을 대상으로 중합효소 연쇄반응을 이용하여 apolipoprotein E 유전자 다형성을 분리하였다. 결 과 : 환자군과 대조군 사이에 유전자형과 대립유전자 빈도는 유의한 차이가 없었다. PANSS에 의한 양성 및 음성군, DSM-IV에 의한 아형, 가족력 유무 등의 임상변인에 따라 각 유전자형의 빈도는 차이를 보이지 않았다. 결 론 : 정신분열병 및 특정 임상양상과 apolipoprotein E 유전자 다형성은 관련성이 없었으며 이 결과는 apolipoprotein E가 정신분열병의 표현에 있어 주요 유전적 요인으로 작용하지 않음을 시사하였다. Objectives : To explore the role of apolipoprotein E in schizophrenia, we investigated apolipoprotein E polymorphism in groups of patients with schizophrenia and normal controls. We also examined the reationship of clinical characteristics of schizophrenia to apolipoprotein E genotypes. Methods : Sample were obtained from 101 schizpohrenic patients and 96 controls in Korea and apolipoprotein E polymorphisms were analysed using polymerase chain reaction. Results : The genotype and allele frequencies did not differ from those of controls. The clinical variables of schizophrenia, such as positive and negative groups by PANSS, subtypes by DSM-IV, family history were not associated with each genotypes. Conclustion : We could not find the association of apolipoprotein E in Korean schizophrenic patients and it could be suggested that apolipoprotein E isoforms might not play a main role in expression of schizophrenia.

상아질 접착에서 collagenase와 esterase가 미세인장결합강도에 미치는 영향

정영정,현홍근,김영재,김정욱,이상훈,김종철,한세현,장기택 대한소아치과학회 2007 大韓小兒齒科學會誌 Vol.34 No.2

상아질-레진 접착강도에 대한 collagenase와 esterase의 영향을 살펴보기 위해, 소구치의 교합면 상아질에 Single Bond 2와 Clearfil SE Bond로 접착을 시행하고 미세 시편을 제작하여 PBS, collagenase 용액, esterase 용액에 4주간 보관한 후 미세인장결합강도를 측정, 비교하여 다음과 같은 결론을 얻었다. 1. 모든 보관 용액에서 Single Bond 2의 미세인장결합강도는 Clearfil SE Bond보다 유의하게 낮았다(p<0.05). 2. Single Bond 2의 미세인장결합강도는 collagenase군이 PBS군, esterase군보다 낮았다(p>0.05). 3. Clearfil SE Bond의 미세인장결합강도는 esterase군이 PBS군에 비해 낮았으나(p>0.05), collagenase군보다는 높았다(p>0.05). Collagenase군은 PBS군에 비해 유의하게 낮은 미세인장결합강도를 보였다(p<0.05). The purpose of this study was to evaluate the effect of collagenase and esterase on the microtensile bond strength (μTBS) in dentin bonding. After resin composites were bonded to occlusal dentin, μTBS specimens were formed and stored in PBS, collagenase, or esterase solution. After 4-week storage, μTBS was determined and, the results were as follows: 1. μTBS values of Single Bond 2 were lower than those of Clearfil SE Bond for all storage medium (p<0.05). 2. In single Bond 2 group, collagenase solution lowered bond strength more than PBS and esterase solution (p>0.05). 3. In Clearfil SE Bond group, esterase solution lowered bond strength more than PBS(p>0.05). Collagenase solution lowered bond strength more than esterase solution(p>0.05) and PBS(p<0.05).