• 제목/요약/키워드: diagnostic tests

검색결과 807건 처리시간 0.03초

Development of a Blocking ELISA for Measuring Rabies Virus-specific Antibodies in Animals

  • Yang, Dong-Kun;Kim, Ha-Hyun;Ryu, Jieun;Gee, Mi-ryun;Cho, In-Soo
    • 한국미생물·생명공학회지
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    • 제46권3호
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    • pp.269-276
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    • 2018
  • Rabies virus (RABV)-specific antibodies in animals and humans are measured using standard methods such as fluorescent antibody virus neutralization (FAVN) tests and rapid fluorescent focus inhibition tests, which are based on cell culture systems. An alternative assay that is safe and easy to perform is required for rapid sero-surveillance following mass vaccination of animals. Two purified monoclonal antibodies (4G36 and B2H17) against RABV were selected as capture and detection antibodies, respectively. A genetically modified RABV, the ERAGS strain, was propagated and concentrated by polyethylene glycol precipitation. Optimal conditions for the RABV antigen, antibodies, and serum dilution for a blocking enzymelinked immune sorbent assay (B-ELISA) were established. We evaluated the sensitivity, specificity, and accuracy of the B-ELISA using serum samples from 138 dogs, 71 raccoon dogs, and 25 cats. The B-ELISA showed a diagnostic sensitivity of 95.8-96.3%, specificity of 91.3-100%, and accuracy of 96.0-97.2% compared to the FAVN test. These results suggest that the B-ELISA is useful for sero-surveillance of RABV in dogs, raccoon dogs, and cats.

근위축성 측삭 경화증 1예 (A Case of Amyotrophic Lateral Sclerosis)

  • 이범준;전진희;류재환;김태연
    • 대한한방내과학회지
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    • 제21권4호
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    • pp.661-665
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    • 2000
  • Amyotrophic Lateral Sclerosis(ALS) is a fatal neuromuscular disease characterized by progressive muscle weakness resulting in paralysis. ALS is characterized by both upper and lower motor neuron damage. Diagnostic tests include magnetic resonance imaging(MRI) electromyogram(EMG), muscle biopsy, and blood tests. In order for a definitive diagnosis of ALS to be made, damage must be evident in both upper and lower motor neurons. When three limbs are sufficiently affected, the diagnosis is ALS. There is no cure for ALS. We recently experienced one case of ALS, The patients was diagnosed as ALS by EMG and Symptoms. We diagnosed her as Wea jeung and treated by Herbal-medication based on the differentiation of symtoms. we report change of his symptoms through both western medical treatment and oriental medical treatment.

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주의력결핍과잉행동장애의 진단 및 평가 - 행동평정척도들을 중심으로 - (Assesment and Diagnosis of Attention Deficit Hyperactivity Disorder(ADHD) - Focusing on Behavior Rating Scales -)

  • 장규태;한윤정
    • 대한한방소아과학회지
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    • 제20권2호
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    • pp.147-175
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    • 2006
  • Objective : This study is to investigate the method for assesment and diagnosis of ADHD, especially focusing on behavior rating scales. Methods : We searched the recent date of the publication and paper in ADHD. Results : For Assesment and Diagnosis of ADHD, various method such as interview with parents, child and teacher, behavior observation, behavior rating scales and neuropsychological test are used. The structured interview consists of the restrictive questions and response, and then have diagnostic algorithm, consequently can be used by untrained clinicians. Of the structured interview, standardization of K-SADS in Korean version is finished. Behavior rating scales, the form of parent, teacher and self-report questionnaires, are used as diagnosis and treatment evaluation of ADHD. Behavior rating scales consist of both ADHD-specific scales and broad-band scales designed to screen for various symptoms (including ADHD symptoms). ADHD-specific scales are useful in differential diagnosis, discrimination of subtype, treatment evaluation, However, broad-band scales are useful in preliminary examination. The neuropsychological tests can evaluate attention deficit and effect of attention deficit on cognitive function and academic performance. The neuropsychological tests also used in diagnosis and treatment evaluation of ADHD. Conclusion : For Assesment and Diagnosis of ADHD, various method are used, especially behavior rating scales are both useful and simple tool for diagnosis and treatment evaluation.

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간질환에서의 혈청 Carcinoembryonic Antigen 가(價) (Carcinoembryonic Antigen Level in Liver Disease)

  • 최규옥;김기황;박창윤
    • 대한핵의학회지
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    • 제12권2호
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    • pp.17-22
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    • 1978
  • Carcinoembryonic antigen was initially known as tumor specific antigen and had a potential diagnostic value in the detection of digestive tract malignancies. However, subsequent studies showed CEA and CEA-like antigen present in benign disease, particullary in liver. We had collected sera from 58 patients who had liver scan and later were diagnosed clinically and histologically as liver disease. We estimated CEA values and correlations were made with liver function tests in liver cirrhosis cases. The results: 1) The raised plasma carcinoembryonic antigen level were found in 13 (68.4%) of 19 patients in liver cirrhosis, 5(27.8%) of 18 patients in hepatoma, 5(71. %) of 7 patients in chronic active hepatitis, all 3 patients in liver abscesses, 2(66.7%) of 3 patients in liver ablscesses, 2(66.7%) of 3 patients in obstructive biliary disease and none in each one patient of traumatic liver hematoma, subphrenic abscess and clonorchiasis. 2) There is no linear correlation between carcinoembryodic antigen level and liver function tests including serum bilirubin, alkaline phosphatase, SGOT and prothrombin time in liver cirrhosis patients.

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An Integrated On-Line Diagnostic System for the NORS Process of Maiden Reactor Project: The Design Concept and Lessons Learned

  • Kim, Inn-Seock
    • Nuclear Engineering and Technology
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    • 제32권3호
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    • pp.261-273
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    • 2000
  • During an extensive review made as part of the Integrated Diagnosis System project of the Maiden Reactor Project, MOAS (Maryland Operator Advisory System) was identified as one of the most thorough systems developed thus far. MOAS is an integrated on-line diagnosis system that encompasses diverse functional aspects that are required for an effective process disturbance management: (1) intelligent process monitoring and alarming, (2) on-line sensor data validation and sensor failure diagnosis, (3) on-line hardware (besides sensors) failure diagnosis, and (4) real-time corrective measure synthesis. The MOAS methodology was used at the Maiden Man-Machine Laboratory HAMMLAB of the OECD Maiden Reactor Project. The performance of MOAS, developed in G2 real-time expert system shell for the high-pressure preheaters of the NORS process in the HAMMLAB, was tested against a variety of transient scenarios, including failures of the control valves and sensors, and tube leakage of the preheaters. These tests showed that MOAS successfully carried out its intended functions, i.e., quickly recognizing an occurring disturbance, correctly diagnosing its cause, and presenting advice on its control to the operator. The lessons learned and insights gained during the implementation and performance tests also are discussed.

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Discoid lupus erythematosus (DLE) in a juvenile Alaskan Malamute dog

  • Kim, Ha-Jung;Yoo, Jong-Hyun;Kim, Ju-Won;Park, Chul;Lim, Chae-Young;Lee, Jong-Hwan;Quan, Fu-Shi;Park, Hee-Myung
    • 대한수의학회지
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    • 제49권1호
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    • pp.73-78
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    • 2009
  • Discoid lupus erythematosus (DLE) is an immune-mediated skin disease which requires histopathology and immunohistopathology in both dogs and humans. A 10-month-old, intact female Alaskan Malamute presented for depigmentation, swelling, alopecia, erythema, and crusting on the bridge of the nose and the nasal planum. Cytological examination of nasal lesions revealed numerous cocci and neutrophils. Histopathological features included of infiltration of mononuclear cells at the dermoepidermal junction. Direct immunofluorescence tests and immunohistochemistry exhibited positive IgG, IgM, IgA, CD3, CD18, and CD79a on the epidermal basement membranes and around adnexal glands. This case indicates both T cells and B cells are related to mechanism of canine DLE. This case report describes advanced diagnostic tests and clinical outcome with immune suppressive therapy in a rare juvenile canine DLE case.

Helicobacter pylori 감염과 소아 복통 (Helicobacter pylori infection and abdominal pain in children)

  • 서정기
    • Clinical and Experimental Pediatrics
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    • 제49권2호
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    • pp.136-143
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    • 2006
  • The relationship between H. pylori(Hp) infection and recurrent abdominal pain(RAP) in children is not clear. Current data in the literature regarding a causal relationship between Hp infection and childhood RAP are conflicting. However, meta-analysis and most of the recently published studies have not supported an association between Hp infection and an increased prevalence of abdominal pain. Most published studies have some problems and have been criticized on methodological grounds. Most of the existing studies have not been designed to include double-blind placebo controls. And, because of the low incidence of Hp infection in children, they have a problem of obtaining sufficient numbers of the Hp infected children. There is also a concern about the heterogeneity of testing methodology in the studies and diagnostic accuracy problems of the non-invasive tests such as low sensitivity of the serology tests and false positive results of the UBT in children. And conflicting results may be explained, in part, by the poor definition of RAP or dyspepsia for the study subjects. To date, no consensus exists for the treatment of Hp-infected children with RAP. Some authors suggest the clinical efficacy of Hp. But others suggest that eradication of Hp is not associated with improvement of RAP. The problem of the most treatment studies is that they had usually no control groups and the number of the subjects was small. In order to make reasonable decisions about treatment of Hp infection in children with RAP, long-term, randomized, double blind, well controlled studies in large numbers of children will be required.

Increasing of Macrophage Migration Inhibitory Factor Expression in Human Patients Infected with Virulent Brucella in Iraq

  • Khudhur, Hasan R.;Menshed, Abbas Ali;Hasan, Ahmed Abbas
    • 한국미생물·생명공학회지
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    • 제48권4호
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    • pp.569-573
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    • 2020
  • Brucellosis is a zoonotic disease caused by Brucella infections and humans usually contract this disease from close contact with infected animals or their products, usually via the ingestion of cheese or crude milk. Macrophage migration inhibitory factor (MIF) and Pro- and anti-inflammatory cytokines play an important role in susceptibility/resistance and the immunopathogenesis of Brucella infection. These cytokines are crucial factors in the initiation and progression of protective immunity against Brucella infection but the role of MIF has not been well studied in the human response to intracellular microbes. This study was designed to investigate the effect of MIF expression on Brucella susceptibility. A total of 85 positive rose Bengal tests and 24 samples from healthy individuals were collected for this study and subjected to polymerase chain reaction assays (PCR) of the bcsp31 diagnostic gene. MIF concentrations were evaluated using Enzyme-Linked immunosorbent assay (ELISA) and the results showed that 46 (54%) of the rose Bengal test samples were positive and 39 (46%) were negative for bcsp31 (p ≤ 0.05) and used as the gold standard for all of the comparisons in this study. The ELISA results indicate that the mean concentration of MIF was significantly higher in patients with positive rose Bengal tests when compared to the control groups and that its concentration increases with increasing age in both the patient and control groups (p ≤ 0.05).

Does Inward Foreign Direct Investments Affect Export Performance of Micro Small and Medium Enterprises in India? An Empirical Analysis

  • SINGHA, Seema;KUMAR, Brajesh;CHOUDHURY, Soma Roy Dey
    • The Journal of Asian Finance, Economics and Business
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    • 제9권9호
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    • pp.143-156
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    • 2022
  • This article examines the effect of inward foreign direct investments (FDI) on the export performance of micro, small & medium enterprises (MSMEs) in India, and investigates the spillover impact and absorption capacity of the MSMEs sector. For the first time, the researchers applied the intersectoral linkage approach to investigate the matter and used a panel dataset between 2006 and 2017. The coefficients of forward and backward linkages are estimated by using the Rasmussen method, the study employs a basic linear panel data model, followed by various diagnostic tests to identify the problem of heteroscedasticity, autocorrelation / serial correlation, cross-sectional dependencies, multicollinearity, time-individual specific tests, and unobserved effects. The PCSE model was applied for robust standard error and the Hausman-Taylor IV model to check the robustness of the result generated in the linear panel data model. Despite the high prevalence of forward and backward intersectoral connections and the Lack of absorption capacity of local firms, the results show that FDI has little of an impact on the export performance of micro, small, and medium-sized businesses in India. This study adds to the existing literature on determining local firms' spillover effect and absorption capacity in response to inward FDI.

복부종괴로 인한 체중증가를 비만으로 오인한 2개의 증례 (Weight Gain Due to Abdominal Mass Misdiagnosed as Obesity: Case Report)

  • 김선현
    • 비만대사연구학술지
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    • 제2권1호
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    • pp.25-28
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    • 2023
  • Early evaluation of obesity is important. Obesity is defined as an excessive accumulation of fat that causes harm to health. Among patients who visit a hospital for weight-related issues, diseases other than body fat gain may be present; however, people often cannot distinguish between these issues and concerns. Therefore, among patients who visit the hospital with weight gain concerns, it is necessary to determine whether the weight gain is actually the result of excessive fat accumulation. After being diagnosed with obesity, the cause and degree of obesity, the amount and distribution of body fat, and the degree of risk should be evaluated. Additionally, obesity-related complications should be identified and, even if there are no complications, all related risk factors should be evaluated and managed. In all these processes, diagnostic methods such as history taking, physical examination, body fat measurement, blood tests, and imaging tests are necessary, but history taking and physical examination, which can provide a lot of information from the beginning, should not be overlooked.