• 제목/요약/키워드: Serological

검색결과 714건 처리시간 0.023초

소아 만성 B형 간염의 Interferon Alfa 치료 후 혈청학적, 조직학적 소견의 변화 (Serological and Histological Changes after Interferon Alfa Therapy in Children with Chronic Hepatitis B)

  • 고재성;정주영;장자준;서정기
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • 제3권1호
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    • pp.56-62
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    • 2000
  • 목 적: 만성 B형 간염 환자의 치료에 interferon alfa는 효과가 있는 것으로 알려지고 있지만 연구자에 따라 차이가 있으며 소아에서의 치료 후의 조직학적 변화에 대한 연구는 거의 없는 실정이다. 저자들은 소아 만성 B형 간염에서 interferon alfa의 치료 효과와 추적 생검이 가능했던 환자에서의 조직학적 변화에 대해 알아보고자 하였다. 대상 및 방법: 1995년 3월부터 1997년 8월까지 서울대학교병원 소아과에서 6개월 이상 HBsAg과 HBeAg 및 HBV DNA가 양성이었으며 간 조직검사상 만성 간염으로 확진된 환자 35명을 대상으로 recombinant interferon alfa 3~6 MU(평균 $3.4\;MU/m^2$)를 주 3회씩 6개월간 피하주사 하였다. 치료 시작 12개월 이상 혈청학적 변화를 추적 관찰하였다. interferon에 반응이 있는 환자 중 18명에서 치료후 간생검을 실시하여 조직학적 변화를 분석하였다. 결 과: 1) 치료 환자 35명 중 17명(49%)에서 인터페론 치료 시작 6개월에 HBV DNA의 감소가 있었고, 12개월째에 22명(63%)에서 HBeAg 및 HBV DNA의 음전이 생겼으며 18개월까지는 25명(71%)에서 관찰되었다. 반응군에서 혈청 ALT치는 모두 정상화되었고, HBsAg의 음전은 1명에서 관찰되었다. 2) 어머니가 HBsAg 보유자가 아닌 수평감염, 치료전 ALT가 정상의 2배 이상, 간조직의 심한 괴사와 염증이 interferon에 대한 반응이 좋은 예측인자이었다. 3) 치료 후 반응군의 간조직 소견에서 간맥주위괴사, 소엽내 활성도, 간맥내 염증, 간섬유화, total HAI가 유의하게 감소하였다. 결 론: 소아 만성 B형 간염에서 interferon alfa 치료 후 63%에서 반응을 보였으며, 혈청학적 변화는 조직학적 소견의 호전과 연관이 있다. 소아 만성B형 간염 환아에서 interferon 치료는 혈청학적, 생화학적, 조직학적 관해를 유도하는 효과적이고 안전한 치료방법이다.

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쯔쯔가무시병의 임상 양상에 대한 소아와 성인의 비교 (A Comparison of Clinical Manifestations of Patients with Tsutsugamushi Disease between Children and Adults)

  • 호요한;박기철;장영택
    • Pediatric Infection and Vaccine
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    • 제21권2호
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    • pp.104-113
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    • 2014
  • 목적: 본 연구는 최근 10년 동안 전주 예수병원에 쯔쯔가무시병으로 입원한 환자를 조사하여 소아와 성인의 임상 양상을 비교하고자 하였다. 방법: 2003년 1월부터 2012년 12월까지, 쯔쯔가무시병의 진단 기준에 포함되는 768명의 환자를 후향적으로 검토하여, 소아 49명, 성인 719명의 임상적 특징과 검사소견 및 합병증 등을 분석 비교하였다. 결과: 연도별 환자의 증가 추세는 소아와 성인 모두에서 뚜렷하게 보이지 않았고, 10월과 11월에 환자가 가장 많이 발생하였다. 남녀비에서 소아는 남아가 많은 반면에, 성인은 여자가 많았고, 거주 지역은 소아가 성인에 비해 도시가 더 많았다. 증상은 소아에서 발진과 가피가 많았고, 근육통은 성인에서 더 많았다. 검사상 소아는 빈혈이 많은 반면에, 혈소판, 간기능, 신기능의 이상 소견이 적었다. 입원 기간과 합병증에서는 성인보다 양호한 결과를 보였다. 소아에서 독시사이클린과 마크로라이드계열 항생제의 치료 효과를 비교하였을 때, 두 약제 간에 유의한 차이는 보이지 않았다. 결론: 쯔쯔가무시병 환자에서 소아는 남아에서 많았고, 발진 및 가피의 발생이 더 많았다. 검사상 이상 소견은 성인에 비해 경하였으며, 입원 기간이 짧고, 합병증이 적으며, 마크로라이드계열 항생제에도 동일한 치료 효과를 보였다. 따라서 유행 시기에, 소아에서 쯔쯔가무시병이 의심될 때에는, 세밀한 이학적 진찰과 혈청학적 검사를 실시하여 빠른 진단을 내릴 수 있도록 노력해야 하며, 상대적으로 부작용이 적은 마크로라이드계 항생제로도 좋은 치료 결과를 기대해 볼 수 있다.

애완토끼에서 토끼매독의 혈청학적 발생율 및 피부병변 치료 (Seroprevalence and Treatment for Skin Lesions of Rabbit Syphilis in Pet Rabbits)

  • 권선정;김상훈;박형진;서경원;송근호
    • 한국임상수의학회지
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    • 제31권1호
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    • pp.15-18
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    • 2014
  • 본 연구는 국내 애완용 토끼 총 122두를 대상으로 피부병변을 일으키는 토끼매독(Treponema paraluiscuniculi) 감염율을 혈청학적 방법으로 조사하고 피부병변 부위를 알아보기 위해 실시하였다. 혈청학적 감염율은 21.3%이었으며 수컷보다는 암컷이, 1세 이상보다는 1세 미만에서 유의성 있는 높은 감염율을 나타내었다(각각 p < 0.01). 피부병변은 입술(59.1%), 코(56.5%), 생식기(50.0%), 항문(40.9%) 및 눈꺼풀(18.2%) 순으로 나타났다. 혼합병변은 코와 입술(26.0%), 항문과 생식기(21.8%), 입술, 항문 및 생식기(17.4%) 순으로 나타났다. 모든 피부병변은 Penicillin G(48,000-84,000 IU/kg, 녹십자, 한국)로 1주일 간격으로 3-4회 치료 후 완치 되었다. 피부 병변을 가지고 있거나, 토끼매독의 혈청학적 양성을 나타내는 환자의 경우 즉각적인 치료 및 교배에서 배제가 필요하다.

충남 서부지역 돈군에서 분리된 Bordetella bronchiseptica의 성상에 대한 연구 (Studies on the properties of Bordetella bronchiseptica isolated from the pig herds in Western Chungnam)

  • 박세종;안식욱;신인환;정태수;전무형
    • 한국동물위생학회지
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    • 제18권2호
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    • pp.133-151
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    • 1995
  • During 2 years from Octorber 1992 to April 1994, prevalence of general respiratory diseases and atrophic rhinitis in the pig herds located in the Western Chungnam was investigated, and isolation of B. bronchiseptica was attempted for the pigs manifested with the clinical signs of atrophic rhinitis(AR). The isolates were characterized and identified in aspects of biochemical properties, antigenicity, drug sensitivity and pathogenicity. The results obtained through the experiments are summarized as follows; 1. During 2 years of investigation, the overall prevalence of the general respiratory diseases in the pi8 herds in Western Chungnam was 35.3%, consisting of 35.1% in the pig farms and 38.8% in a slaughter house. The prevalence by age groups accounts for 9.2% in adults, 44.7% in rearings and 25.3% in sucklings. By farm size, The highest prevalence of 56.5% was observed in the smallest farm with 1 to 200 heads. 2. The prevalence of clinical cases of artrophic rhinitis was recorded by 12.7% in the group that is the sows and piglets vaccinated, 28.9% in the group that is the sows only vaccinated and 39.8% in the group of the non-vaccinated groups. In the slaughter house, 53(24.8%) of 214 pigs examined exhibit the AR lesions. 3. A total of 189 strains of B. bronchiseptica were isolated from the pig herds. Isolation rates were 12.6% in the group that is the sows and piglets vaccinated, 34.1% in the group that is the sows only vaccinated and 45.7% in the group of the non-vaccinated groups. Isolation rate in the specimen from the slaughter house was 93( 43.5% ) of 214 pigs examined. Of the AR-non-vaccinated group, the piglets aged bet- ween 61 to 90 days revealed the highest isolation rate of 58.5%. 4. The titers of antibody against B. bronchiseptica were measured by tube agglutination test. The group that is the sow and piglet-vaccinated showed the highest titer of 640-2, 560 in sow and 640longrightarrow5, 120 in piglet. The group that is the sows only-vaccinated revealed 640-2, 560 in sows and 640-1, 280 in piglets. Both of the vaccinated groups showed 100% positive reaction. The group of the non-vaccinated sho-wed relatively lower titer of 0-1, 280 in both of sows and piglets. The positive rate of the sera obtained from the slaughter house was 53.3% with the antibody titer of 0-1, 280. 5. Biochemical and serological properities of 189 isolates were very similar to those of the reference B. bronchiseptical phase I type, indicating that most of isolates are B. bronchiseptica phase I type. 6. In antimicrobial drug susceptibility, 87.3% of 189 isolates was susceptible to chloramphenicol, 79.9%, to amikacin, 64.6%, to cephalothin and less than 35.4% to others. 7. In agar-gel immunodiffusion and SDS-PAGE analysis, the isolates presented the identical antigenicity and protein profiles to the reference standard strains. 8. The whole cells and bacterial filtrates of the isolates were inoculated to guinea pigs and mice. The isolates showed the hish pathogenicity and dermonecrotoxiciy.

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추백리 혈청검사 양성 산란계로부터 Salmonella속균 분리 (Isolation of Salmonella from the layer chickens reacting in pullorum-typhoid agglutination test)

  • 류재윤;전무형;장경수;손현수;곽학구;박경재;우용구
    • 한국동물위생학회지
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    • 제22권3호
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    • pp.221-237
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    • 1999
  • To investigate the specificity of rapid slide agglutination test for pullorum-gallinarum diseases and to obtain a basic data for avian salmonellosis control, salmonella isolation was peformed for the layer chickens positively reacted in pullonlm-typhoid agglutination test. The biochemical, serological and antimicrobial properties of the isolates were examined. The results obtained through this study were summarized as follows; 1. Of 2,384 chickens tested by the agglutination test, 606 chickens (25.4%) were positive reactors. 154 of 606 reactors and 49 of the non-reacting chickens were investigated for salmonella isolation, resulting in isolation of 68 strains of salmonellae from 27 chickens. 2. By organs, the isolation frequency from liver, cecum, spleen, ovary and gall bladder showed 8.9% (18 strains), 8.9% (18 strains), 7.4% (15 strains), 4.4% (9 strains) and 3.9% (8 strains), respectively. 3. By culture medium the combination of selenite broth and MacConkey agar revealed the highest isolation rate and the enrichment culture by delayed secondary enrichment culture method was found the most effective for salmonella isolation. 4. The serotypes of 68 salmonella isolates were identified as 3 strains of S pullorum, 24 strains of S gallinarum, 15 strains of S typhimurium, 8 strains of S enteritidis, 7 strains of S paratyphi A, 5 strains of S typhimurium and 6 strains of the other salmonellae. 5. The serotypes of 8 salmonella strains isolated from 49 chickens non-reacting in pullorum-typhoid agglutination test were identified as 3 strains of S typhimurium and 5 strains of S infantis. 6. When 24 chickens of which 68 strains of salmonellae isolated were examined by microplate agglutination test, the average antibody titer for pullorum antigen was $2^{5.25}$. The chickens at antibody titer between $2^3$ and $2^5$ showed the higher frequency of isolation as compared with the chickens at the other titers. 7. When salmonella isolates were tested the antimicrobial drug sensitivity by disk diffusion method, S paratyphi A were highly sensitive by 100% to ATM and GM, S typhimurium, by 88% to AM, CIP, IMP and TN, S infantis, by 100% to AM, CRO, ENR and PIP, S enteritidis,by 100% to IMP and PIP, S pullorum, by 100% to ATM, CRO, ENR and PIP and S gallinarum, by 92% to CRO, CIP and PIP.

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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) (Studies on the Immunoblot Characterization of Clonorchis sinensis Worm Antigens at Carly Development Stages)

  • 이선경;주경환;정명숙;임한종
    • 농촌의학ㆍ지역보건
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    • 제16권1호
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    • pp.61-69
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    • 1991
  • 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.

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Clinical Characteristics and Helicobacter pylori Status of Gastric Cancer in Thailand

  • Vilaichone, Ratha-Korn;Panarat, Wirat;Aekpongpaisit, Surasak;Mahachai, Voracha
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권20호
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    • pp.9005-9008
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    • 2014
  • Background: Gastric cancer is the second leading course of cancer death worldwide and H. pylori infection is an important risk factor for gastric cancer development. This study was design to evaluate the clinical, pathological features, survival rate and prevalence of H. pylori infection in gastric cancer in Thailand. Materials and Methods: Clinical information, histological features, endoscopic findings and H. pylori status were collected from gastric cancer patients from Thammasat university hospital during June 1996-December 2011. H. pylori infection was assessed by histological evaluation, rapid urease test and serological test. Clinical information, endoscopic findings and histopathology of all patients were recorded and compared between patients with active or non-active H. pylori infection. Results: A total of 100 gastric cancer patients (55 men and 45 women with mean age of $55{\pm}16.8years$) were enrolled in this study. Common presenting symptoms were dyspepsia (74%), weight loss (66%), anemia (63%) and anorexia (38%). Mean duration of symptoms prior to diagnosis was 98 days. Overall prevalence of H. pylori infection was 83% and active H. pylori infection was 40%. 1-year and 5-year survival rates were 43% and 0%. There was no significant difference between active H. pylori infection in different locations (proximal vs non-proximal: 47.1% vs 48.5%; P-value = 0.9, OR=0.9; 95%CI=0.3-3.1) and histology of gastric cancer (diffuse type vs intestinal type: 47.4% vs 50%; P-value = 0.8, OR=0.9, 95%CI=0.3-2.7). However, linitis plastica was significantly more common in non-active than active H. pylori infection (27.9% vs 0%; P-value<0.0001, OR=13.3, 95%CI=3.2-64.5). Moreover, gastric cancer stage 4 was higher in non-active than active H. pylori infection (93% vs 50%, P-value<0.001). Conclusions: Prevalence of H. pylori infection in Thai gastric cancer patients was high but active infection was low. Most gastric cancer patients presented in advance stage and had a grave prognosis. Screening for gastric cancer in high risk individuals might be an appropriate tool for early detection and improve the treatment outcome for this particular disease in Thailand.

열성질환 환자에서 라임병균 Borrelia burgdorferi 감염증 진단을 위한 혈청학적인 분석 (Analysis of Antibodies Against Lyme Disease Agent, Borrelia burgdorferi, in Sera from Patients with Unknown Fever)

  • 김영미;김종배
    • 대한의생명과학회지
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    • 제3권2호
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    • pp.95-105
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    • 1997
  • 현재 라임병을 진단을 위해 국내에서 이루어지고 있는 연구 방법은 원인균인 B. burgdoferi 항원에 대한 항체를 검출하는 혈청학적인 방법이다. 하지만 대부분의 경우 항원으로 사용되는 균주가 다른 나라에서 분양받은 균주이므로 이때 얻어진 결과를 유추 해석하는데 어려움이 수반되고 있다. 본 실험에서는 국내 분리균주에 대한 항체를 검출하는 조건을 확립하고, 이를 토대로 하여 불명열 환자의 항체가 항원에 반응하는 양상을 파악함으로써 국내 분리균주를 이용한 혈청학적인 분석방법으로 국내 라임병 진단에 보다 적합한 조건을 제시하고자 하였다. 본 실험 결과 병원에 의뢰된 불명열 환자의 혈청이 B. burgdoferi sensu lato 중 3가지 균종의 항원에 대해 평균 약 8% 정도의 양성 반응을 보이는 것으로 미루어 볼 때 이 들 중 B. burgdorferi에 의한 열성 질환 감염증이 존재할 것으로 사료된다. 특히 국내 분리균주 중 가장 많이 분리된 바 있는 B. afzelii에 대한 양성반응이 14.3%나 나타난 것으로 미루어 아직 밝혀지지 않은 국내 발생 라임병의 원인균은 주로 B. afzelii일 가능성이 가장 크다고 할 수 있을 것이다. 또한 효소결합면역 측정법 (ELISA)을 이용하여 양성으로 판별된 혈청에 대해 immunoblotting법을 실시한 결과 주로 41kDa (ftagellin), 27kDa, 31kDa (OspA), 34kDa (OspB)에서 band가 나타났다. 본 실험의 결과 국내 열성질환 환자들 중 라임병균에 의한 감염증이 있을 것으로 사료되므로 국내 분리균주를 항원으로 사용한 효소결합면역 측정법 (ELISA), immunoblotting법과 같은 혈청 학적 진단이 이루어져야 한다고 사료된다.

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Circulating Cell-free miRNA Expression and its Association with Clinicopathologic Features in Inflammatory and Non-Inflammatory Breast Cancer

  • Hamdi, K;Blancato, J;Goerlitz, D;Islam, MD;Neili, B;Abidi, A;Gat, A;Ayed, F Ben;Chivi, S;Loffredo, CA;Jillson, I;Elgaaied, A Benammar;Marrakchi, R
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권4호
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    • pp.1801-1810
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    • 2016
  • Recent discovery showing the presence of microRNAs (miRNAs) in the circulation sparked interest in their use as potential biomarkers. Our previous studies showed the diagnostic potential of miR-451 as a serological marker for inflammatory breast cancer (IBC), miR-337-5p and miR-30b for non-inflammatory breast cancer (non-IBC). The aim of this study is to investigate the prognostic values of circulating miRNAs by comparing the amounts of 12 circulating miRNAs in the serum of IBC and non-IBC from Tunisian breast cancer patients, and by determinating whether correlated pairs of miRNAs could provide useful information in the diagnosis of IBC and non-IBC patients. TaqMan qPCR was performed to detect circulating expression of miRNAs in serum of 20 IBC, 20 non-IBC and 20 healthy controls. Nonparametric rank Spearman rho correlation coefficient was used to examine the prognostic value of miRNAs and to assess the correlation profile between miRNAs expression. Further, a large number of miRNAs were highly correlated (rho>0.5) in both patients groups and controls. Also, the correlations profiles were different between IBC, non-IBC and healthy controls indicating important changes in molecular pathways in cancer cells. Our results showed that miR-335 was significantly overexpressed in premenopausal non-IBC patients; miR-24 was significantly overexpressed in non-IBC postmenopausal patients. Patients with previous parity had higher serum of miR-342-5p levels than those without. Furthermore, patients with HER2+ IBC present lower serum levels of miR-15a than patients with HER2-disease. Together, these results underline the potential of miRNAs to function as diagnostic and prognostic markers for IBC and non-IBC, with links to the menopausal state, Her2 status and parity.

Application of tylosin antibiotics to olive flounder (Paralichthys olivaceus) infected with Streptococcus parauberis

  • Joo, Min-Soo;Hwang, Seong Don;Choi, Kwang-Min;Kim, Yoon-Jae;Hwang, Jee Youn;Kwon, Mun-Gyeong;Jeong, Ji-Min;Seo, Jung Soo;Lee, Ji Hoon;Lee, Hee-Chung;Park, Chan-Il
    • Fisheries and Aquatic Sciences
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    • 제23권8호
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    • pp.20.1-20.18
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    • 2020
  • Background: Olive flounder, Paralichthys olivaceus, is an economically important aquaculture species in Korea. Olive flounders have been heavily damaged by streptococcal infections every year and are treated with antibiotics. However, antibiotic abuse is causing the emergence of resistant strains, and to overcome this, research has shown that new antibiotics must be applied. Tylosin is a relatively safe antibiotic and has good activity against Gram-positive bacteria and mycoplasma. We studied the therapeutic effects and side effects of tylosin on Streptococcus parauberis-infected olive flounder. Methods: After artificial infection of olive flounder with S. parauberis SPOF18J3, an appropriate dose of tylosin was confirmed by intramuscular injection (I.M.) at 2.5, 5, 10, and 15 mg/kg, and oral administration at 10 and 20 mg/kg. After I.M. and oral administration dosing of tylosin, side effects were confirmed by serological analysis, histopathological analysis, and median lethal dose (LD50) analysis at both an appropriate concentration and a high concentration. Statistical analysis was performed using one-way analysis of variance (ANOVA) and Tukey's test (p < 0.05). Results: The appropriate I.M. and oral administration concentration of tylosin administered to olive flounder infected with S. parauberis SPOF18J3 was found to be 10 mg/kg. Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels were showed not significantly different between the control group and the experimental groups. The histopathologic results showed mild inflammatory responses in muscle and tubular vacuolization and tubular atrophy appeared, but there were no significant differences between the groups. The LD50 was confirmed to be 461 mg/kg. Conclusion: In this study, an effective treatment method was provided by verifying the treatment effects and side effects of tylosin in olive flounder infected with S. parauberis, which can be applied directly to aquaculture sites. In addition, these results may be used as a reference for evaluation required upon request to obtain approval for tylosin antibiotics as fishery antibiotics in Korea. After approval, it is possible that a fishery disease manager will be able to prescribe and sell the antibiotic tylosin.