경기도(京畿道) 여주군(驪州郡)에 있어서의 간흡충감염실태조사(肝吸?感染實態調査)

주경환,최득린,임한종,Joo, Kyoung-Hwan,Choi, Deuk-Lin,Rin, Han-Jong 한국농촌의학지역보건학회 1982 농촌의학·지역보건 Vol.7 No.1

Clonorchiasis sinensis is one of the most important endemic diseases in Korea, and this disease has been known to be one of public health concern in many areas of Korea. This survey was undertaken to evaluate the status of clonorchiasis in Yeoju Gun, Gyeong-gi Do from July to September 1980. A total of 1,194 male students were examined by intradermal test with Clonorchis antigen. In order to detect Clonorchis egg, the stool examinations were undertaken to 1,158 students, and the intensity of the Clonorchis infection was estimated by the Stoll's egg count. The prevalence rate was reanalyzed by the regional groups for an investigation of regional characteristics of infection. The following results were obtained in this survey. 1) Among 1,194 students in Yeoju Eup, positive rate of intradermal test with C. sinensis antigen was 17.2 percent. (middle school14.6% and high school 20.1%). 2) In the examination of 1,158 stool specimens, Clonorchis eggs were found in 97 (8.4%) cases. 3) Mean E.P.G. of Clonorchis infected case was $1,330{\pm}2,620$. 4) The degree of the intensity of Clonorchis infection by E.P.G. count was distributed as 73.6% in light infection (100-999), 22.6%, in moderate infection (1,000-9,999), and 3.8% in heavy infection (10,000-29,999). 5) High prevalence rate of Clonorchis sinensis was found in the Sang-Ri(9,3%) and Ha-Ri(8.4%) in Yeoju Eup. Neighbouring Bugnae Myun (11.5%), Gangcheon Myun(12.1%) and Neungseo Myun (11.1%) adjacent to the river had a similary high prevalence of C. sinensis.

중국 연변지역 주요 기생충질환에 대한 혈청역학적 조사

주경환,전복실,권혜수,조성원,이순옥,Joo, Kyoung-Hwan,Quan, Fu Shi,Kwon, Hye-Soo,Cho, Sung-Weon,Li, Shun Yu 한국농촌의학지역보건학회 1998 농촌의학·지역보건 Vol.23 No.2

간흡충(Clonorchis sinensis), 폐흡충(Paragonimus westermani), 스팔가눔(sparganum), 뇌낭미충(Cysticercus cellulosae), 아니사키스(Anisakis spp.), 선모충(Trichinella spiralis), 개화충(Toxocara canis)에 대한 IgG항체반응을 ELISA를 이용하여 연변지역주민의 혈청역학적 조사를 시행하고 그 결과를 PC-SAS 시스템으로 통계분석하여 다음과 같은 결과를 얻었다. 1995년 10월부터 1997년 6월 사이에 수집된 총 975명의 혈청에 대한 검사결과 23.87%에서 한 종류이상의 혈청항체 양상을 나타내였다. 이중 간흡충증은 5.74%, 폐흡충증은 4.92%, 낭미충증은 1.54%, 스팔가눔증은 8.51%, 아니사키스증은 1.85%, 개회충증은 12.51%, 선모충증은 7.08%의 혈청항체 양성률을 나타내었다. 판정된 양성혈청을 통계분석한 결과 간흡충(p<0.01), 혜흡충(p<0.01), 아니사키스(p<0.05), 개회충(p<0.01), 선모충(p<0.01)의 각 연령그룹비교에서 통계학적으로 유의한 차이를 나타내었고 스팔가눔증은 성별 사이에 유의한 차이가 보였다(p<0.05). 간흡충과 폐흡충은 50대 연령층에서 높은 양성항체가를 나타내는 반면 개회충과 선모충은 20대에서 높은 항체가를 보여주었다. 또한 내과질병으로 않고 있는 환자혈청은 낭미충증을 제외한 6종류 윤충류에서 정상대조인과 비교하여 볼 때 모두 통계학적으로 유의한 차이를 나타내었다(p<0.05 혹은 p<0.01). 즉 환자가 정상대조인보다 혈청양성률이 훨씬 높았다. 이상의 결과는 물론 선충사이의 교차반응이 있을거라고 추측되며 정확한 진단을 위해서는 EITB를 시행해야 한다고 생각한다. 이번 조사는 중국 연변에서 처음으로 되는 혈청역학조사이며 앞으로 기생충진환 퇴치대책에 아주 중요한 기초자료가 될 수 있을 것으로 생각한다. Antibody responses(IgG) to Paragonimus westermani. Clonorchis sinensis, Cysticercus cellulosae, Sparganum Anisakis simplex, Toxocara canis and Trichinella spiralis were studied. The ELISA technique was performed to determine the prevalence of above helminthic diseases. 975 cases obtained from Yanbian of China during October, 1995 to July, 1997 were examined with a positive antibody titer of 5.74% in clonorchiasis, 4.92% in paragonimiasis, 1.54% in cysticercosis. 8.51% in sparganosis, 1.85% in anisakiosis, 12.51% in toxocariasis, and 7.08% in trichinosis respectively. And 23.87% in showed positive antibody titer at least one of the seven helminths. The differences of the age and sex in the positive sera were analysed by the Chi-squared test and the level of significance accepted was p<0.05. The significant differences in positive antibody production were P.W.(p<0.01). C.S.(p<0.01), A.S.(p<0.05). T.C.(p<0.001), and T.S.(p<0.01) respectively in age groups. sparganosis(p<0.05) in sex groups. Other parasites showed that there were no significant differences among age groups and sex groups(males and females). Higher positive antibody rate of C.S. and P.W. occured in the 50-59 years old and those of T.C. and T.S. happened in the 20-29 years old. Patients of internal disease showed more positive antibody titer, that is to say, there was significant difference between positive rate of internal diseases and that of control (p<0.01. p<0.05) in 6 helminths except cysticercosis. The result showed that some cross reactions existed among nematodes, and the developed techniques(EITB) should be done for a correct diagnosis. Also the prevalence of some important helminths may be evaluated from the result and it would be a basic data for controlling parasitic diseases in Yanbian.

IHA(Indirect hemagglutination test)를 이용한 肝吸虫症의 免疫血淸學的 診斷에 관한 硏究

朱炅煥(Kyoung-Hwan Joo),金鍾成(Jong-Seong Kim),鄭明淑(Myung-Sook Chung),林漢鍾(Han-Jong Rim) 한국농촌의학 지역보건학회 1987 농촌의학·지역보건 Vol.12 No.1

우리나라에 있어서의 鉤蟲感染의 疫學的 硏究

朱炅煥(Kyoung-Hwan Joo),林漢鍾(Han-Jong Rim) 대한기생충학열대의학회 1978 The Korean Journal of Parasitology Vol.16 No.2

Immunoblot technique을 이용한 폐흡충의 발육단계별 항원 특이성 분석

주경환(Kyoung-Hwan Joo),홍성철(Sung-Chul Hong),정명숙(Myung-Sook Chung),임한종(Han-Jong Rim) 대한기생충학열대의학회 1989 The Korean Journal of Parasitology Vol.27 No.1

Demonstration of species-specific and cross reactive components of Paragonimus westermani crude worm antigen by EITB

Kyoung-Hwan Joo(주경환),Hyuck Ahn(안혁),Myung-Sook Chung(정명숙),Han-Jong Rim(임한종) 대한기생충학열대의학회 1989 The Korean Journal of Parasitology Vol.27 No.1

경상남도(慶尙南道) 밀양군(密陽郡) 삼랑진읍(三浪津邑)에 있어서의 간흡충(肝吸?) 감염실태조사(感染實態調査)

임한종,주경환,엄기선,박수배,Rim, Han-Jong,Joo, Kyoung-Hwan,Eom, Kee-Seon,Park, Soo-Bae 한국농촌의학지역보건학회 1982 농촌의학·지역보건 Vol.7 No.1

In order to observe the endemic status of Clonrchis sinensis infection in Samrangjin eup, Milyang gun, Kyongsang nam do, a total number of 294 stool specimens were collected from the inhabitants who lived in the basin of the Nakdong river. The specimens were examined by cellophane thick smear technique and Stoll's egg dilution technique during the period from May to June 1983. The epidemiological status was analysed statistically by the regression equation and catalytic curv with the results obtained from this area. The results are as follows : 1) The infestation rate of Clonorchis sinensis in 294 was 49.0%. 2) No remarkable difference was observed between male (52.5%) and female (44.8%). 3) Average E.P.G. by Stoll's egg dilution technique in this area was 9,597. 4) The degree of the intensity of Clonorchis infection by E.P.G. count was distributed as 10.5% in very heavy infection, 14.7% in heavy infection, 47.4% in moderate infection, and 29.3% in light infection. 5) The intensity of endemicity in this area was represented with the regression equation calculated with the cumulative percentages of E.P.G. counts. Regression equation was y=3.40+1.23 log x and Cs. $D._{50}$ was 19.99. 6) The two stage catalytic model was applied and the calculation lead to the equation $y=1296(e^{-0.008t}-e^{-0.035t})$ ; a=0.035 > b=0.008 in this surveyed area. 7) Other helminthic infection rate in this area was 7.1% in A. lumbricoides, 9.5% in T. trichiura and 4.1% in E. vermicularis respectively.

제주도(濟州道) 일부지역(一部地域)에서의 장내기생충감염상황(腸內寄生?感染狀況) 및 분식사양편소(糞食飼養便所)

심준구,주경환,이준상,Shim, Joon-Goo,Joo, Kyoung-Hwan,Lee, Joon-Sang 한국농촌의학지역보건학회 1982 농촌의학·지역보건 Vol.7 No.1

This study was undertaken to evaluate the present status of parasitic infection and swine pen human latrine system in Cheju Do, from July to September 1982. The 663 stool specimens (male 323 and female 340) and 579 scotch tape anal swabs collected from 161 households of 2 areas in Cheju Do were examined. The methods employed were formalin-ether technique for the prevalence rate of various helminthic and protozoan infection, and scotch tape anal swab technique for the prevalence rates of Enterobius vermicularis. In addition to these, questionaire was used to evaluate the present status of swine pen human latrine system and prevalence rates of taeniasis in these areas. The results are as follows ; 1) Prevalence rates of parasitic infections of any kind was 33.9%. It was 35.7% in Cheju City in contrast to 32.1% in North Cheju Gun. The infection rates of Trichuris trichiura was 10.0% and it was the highest prevalence rate in this survey. The prevalence rates of the other parasites were as follows ; Ascaris lumbricoides 2,3%, Hookworm 0.2%, Clonorchis sinensis 0.5%, Hymenolepis nana 1.5%, Entamoeba coli 3.2%, and Giardia lamblia 0.5%. 2) The infection rates of Enterobius vermicularis in 579 peoples (male 285, female 294) by applying scotch tape anal swab technique was 13.1% through the survey. It was 16.9 in Cheju City and 8.5% in North Cheju Gun. 3) The Infection rate of Taenia species by applying the stool examination and making up a question was 19.2%(21.4% in Cheju City and 16.7% in North Cheju Gun). 4) Sexual distribution of the parasitic infections showed slightly higher rate in female than that of male. 5) The positive rates of parasitic infection by the stool examination and questionaire positive cases of taeniasis were higher in 0-9 and over 60 year old than any other age group. 7) The swine pen human latrine systems were used in 46 households (28.6%). 7) Relationship between swine pen human latrine system and taeniasis was not noted.

Immunoblot 법을 이용한 간흡충항원(肝吸蟲抗原)의 발육단계별(發育段階別) 항원성분석(抗原性分析)에 관한 연구(硏究)

이선경,주경환,정명숙,임한종,Lee, Seon-Kyung,Joo, Kyoung-Hwan,Chung, Myung-Sook,Rim, Han-Jong 한국농촌의학지역보건학회 1991 농촌의학·지역보건 Vol.16 No.1

Serodiagnosis of Clonorchis sinensis infections will probably be a first choice tool for screening of clonorchiasis in a future because of increasing difficulties in collection and examination of stools. The sensitive test such as ELISA can he used effectively. However there are some limitations in serological diagnosis for the detection of serum antibody. One of the major problems is the non-specificity of the antigens which produce cross reaction with other helminthic infection sera. To solve this problem. many investigators have tried to purify the antigens used. In this study, we determined the antigenic profile of the crude saline extract antigen of C. sinensis at early developmental stage based on SDS-PAGE and immunoblotting techniques for the purpose of understanding the nature of C. sinensis worm antigen The following results were obtained : 1) The SDS-PAGE showed many protein hands ranging from 10Kd to 91Kd relative molecular weight. Among them, 66, 46, 40, 33, 27, 24, 16, 14 and 10Kd bands were observed as a principle bands. The protein components of C. sinensis changed chronologically during their early developmental period. 44Kd band was stained unclearly in antigen of 2 weeks worm, but changed to concentrated state in antigen of 5 weeks worm. 35Kd band was found in antigen of 2 weeks worm, however this band was disappeared in antigen of 5 weeks worm. 22Kd band also lost its staining property gradually. 2) In spite of differences in antigenic profile, there was no differences in the data obtained by microplate ELISA using each antigen preparation. Absorbance value began to rise in between 2 to 3 weeks after infection. 3) By EITB. serum antibody recognized major protein bands with molecular weight of 91, 85, 63, 46, 40, 33, 24, 14 and 10Kd hand respectively. Among them 66, 33, 17 and 14Kd bands were observed as non-specific band because they reacted even in normal control sera. Generally, gradual increase of positive reactions were observed as the infection period of C. sinensis was prolonged. In other hand, the reaction of 10Kd hand did not occurred when 26th week sera was tested. 4) The positive reactions using antigens of 2 weeks worm, especially on 40 and 24Kd bands, were most strong and sharply demarcated compared to those of 3~5 weeks worm antigen.

광범위(廣範圍) 구충제(駒蟲劑) Albendazole의 인체연충류감염(人體??類感染)에 대한 구충효과

임한종,주경환,이준상,왕진성,Rim, Han-Jong,Joo, Kyoung-Hwan,Lee, Joon-Sang,Wang, Jin-Sung 한국농촌의학지역보건학회 1984 농촌의학·지역보건 Vol.9 No.1

Albendazole, a new broad spectrum anthelmintic drug, was evaluated for anthelmintic effects in 74 patients with single or mixed infections of Ascaris lumbricoides, Trichuris trichiura. Enterobius vermicularis, Metagonimus yokogawai, Clonorchis sinensis and Taenia spp. Albendazole was administered as a single dose of 400 mg. The cure rate for A. lumbricoides and E. vermicularis was 91.4% and 98.1% respectively at day 30 post-treatment: for T. trichiura it was 51.1% and for M. yakogawai and C. sinensis it was 33.3% and 13.3% respectively. The egg reduction rate at day 30 was 98.5% in A. lumbricoides, 76.5% for T. trichiura : 60.0% for M. yokogawai and 59.6% for C. sinensis However it was not cured in all 5 cases of taeniasis at three months follow-up examination. On the other hand, the various dosages of albendazole were given to the patients infected with C. sinensis and Taenia spp. respectively. The follow-up examinations were carried out at 30 days after treatment in clonorchiasis and at 3 months after treatment in taeniasis. In the results, the recommended dosage of albendazole for clonorchiasis is $3{\times}400mg$ for 3 consecutive days and for taeniasis $2{\times}400mg$ for 3 consecutive days. There were no side effects with the above dosages except only a mild abdominal pain and dizziness in a few patients. Albendazole appears to be more effective than the other available broad spectrum anthelmintic drugs.