• Title/Summary/Keyword: detection kit

Search Result 308, Processing Time 0.03 seconds

Implementation of Multi Electronic Acupuncture based on Internet (인터넷 기반 멀티 전자침 구현)

  • Hong, You-Shik
    • The Journal of the Institute of Internet, Broadcasting and Communication
    • /
    • v.14 no.5
    • /
    • pp.197-202
    • /
    • 2014
  • It is used the important method that Oriental doctor determines patient's disease status observing patient's state of tongue in Oriental medicine clinic. In this paper, it developed the how to use the pulse diagnosis and tongue diagnosis based on s mart based electronic acupuncture. It will do objective judgment without wrong diagnosis. In this paper, we developed the algorithm that it automatically determines patient health condition and smart electronic acupuncture kit using fuzzy logic and fuzzy reasoning system were completed. In this paper, Simulation results proved that acupuncture is effective than the traditional method of using electronic intelligence.

Elevated Serum Ferritin Levels in Patients with Hematologic Malignancies

  • Zhang, Xue-Zhong;Su, Ai-Ling;Hu, Ming-Qiu;Zhang, Xiu-Qun;Xu, Yan-Li
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.15 no.15
    • /
    • pp.6099-6101
    • /
    • 2014
  • Purpose: To retrospectively analyze variability and clinical significance of serum ferritin levels in Chinese patients with hematologic malignancies. Materials and Methods: Serum ferritin were measured by radioimmunoassay, using a kit produced by the Beijing Institute of Atomic Energy. Patients with hematologic malignancies, and treated in the Department of Hematology in Nanjing First Hospital and fulfilled study criteria were recruited. Results: Of 473 patients with hematologic malignancies, 262 patients were diagnosed with acute leukemia, 131 with lymphoma and 80 with multiple myeloma. Serum ferritin levels of newly diagnosed and recurrent patients were significantly higher than those entering complete remission stage or in the control group (p<0.001). Conclusions: Serum ferritin lever in patients with hematologic malignancies at early stage and recurrent stage are significantly increased, so that detection and surveillance of changes of serum ferritin could be helpful in assessing conditions and prognosis of this patient cohort.

Synthetic Peptide-Based Enzyme-Linked Immunosorbent Assay for Human $\alpha$-Fetoprotein

  • Yoon, Mi-Chung;Lee, Hyun-Hee
    • Biomedical Science Letters
    • /
    • v.7 no.3
    • /
    • pp.103-110
    • /
    • 2001
  • $\alpha$-Fetoprotein(AFP) is a good marker for the detection of several diseases such as hepatocellular carcinoma, gonadal germ cell tumor, gastric tumor, and Down's syndrome. In this study, we developed ELISA, using synthetic peptides corresponding to the epitopes of AFP. Five kinds of peptides were synthesized from AFP to produce antibodies in rats that recognize AFP in human plasma as well as amniotic fluid and do not cross-react with serum albumin. All five kinds of antibodies showed good reactivities with their peptide-keyhole limpet hemocyanin conjugates. Anti-synthetic peptide 1 (R-N-E-Y-G-I-A-S-I-L, 4-13) antibody, in particular, reacted well with AEP as well as synthetic peptide 1-KLH but not with human serum albumin. The binding affinity(Kd) was 2.7$\times$10$^{-9}$M for peptide 1 and 6.8$\times$10$^{-8}$M for AEP. The range for measurement of AFP was 10~1,000 ng/ml. The within-assay and between-assay coefficients of variance(CV) were 4.83% and 10.97%, respectively. In a sample of 31 sera and 33 amniotic fluids, there was a good correlation between AFP values determined in this assay and those in a commercial kit. These results indicate that the antibodies against synthetic peptides corresponding to the epitopes of AFP are highly specific to APP and synthetic peptide-based ELISA would be useful for the measurement of human AFP.

  • PDF

Isolation and PCR detection of Listeria monocytogenes on raw beef and pork carcass (소와 돼지도체에서 Listeria monocytogenes의 분리 및 PCR 검출 방법에 관한 연구)

  • Chae, Hee-Sun;Kim, Doo-Hwan;Kim, Gu-Hyun;Shin, Bang-Woo;Jo, Mi-Yoeng;Kweon, Taek-Boo;Lee, Jung-Hak
    • Korean Journal of Veterinary Service
    • /
    • v.26 no.2
    • /
    • pp.105-111
    • /
    • 2003
  • From February 2000 to December 2001, A total of 1,785 samples was taken from beef and pork carcasses in Seoul. Seven(0.69%) Listeria spp. were isolated from the 1,014 of beef carcasses, and five(0.65%) were isolated from the 771 of pork carcasses. The isolates were identified L monocytogenes by API listeria, and VIDAS LMO kit, serological test and PCR assay were preformed. A total 12 strains of L monocytogenes were isolated form samples tested and all of the strains were classified into serotype 1. PCR primers are selected to amplify a 520-base pair(bp) DNA fragment from the listeolysin O gene(hlyA) of Listeria monocytogenes. A 520-bp product was detected in PCR with DNA from L monocytogenes, but not from the other Listeria species tested.

Development of Two Quantitative Real-Time PCR Diagnostic Kits for HPV Isolates from Korea

  • Jeeva, Subbiah;Kim, Nam-Il;Jang, In-Kwon;Choi, Tae-Jin
    • Journal of Microbiology and Biotechnology
    • /
    • v.22 no.10
    • /
    • pp.1350-1358
    • /
    • 2012
  • Viral pathogens, alongside other pathogens, have major effects on crustacean aquaculture. Hepatopancreatic parvovirus (HPV) is an emerging virus in the shrimp industry and has been detected in shrimp farms worldwide. The HPV genome has greater diversity than other shrimp viruses owing to its wide host range and geographical distribution. Therefore, developing diagnostic tools is essential to detect even small copy numbers from the target region of native HPV isolates. We have developed two easy to use quantitative real-time PCR kits, called Green Star and Dual Star, which contain all of the necessary components for real-time PCR, including HPV primers, using the primers obtained from the sequences of HPV isolates from Korea, and analyzed their specificity, efficiency, and reproducibility. These two kits could detect from 1 to $1{\times}10^9$ copies of cloned HPV DNA. The minimum detection limits obtained from HPV-infected shrimp were $7.74{\times}10^1$ and $9.06{\times}10^1$ copies in the Green Star and Dual Star assay kits, respectively. These kits can be used for rapid, sensitive, and efficient screening for HPV isolates from Korea before the introduction of postlarval stages into culture ponds, thereby decreasing the incidence of early development of the disease.

Distribution of Indicator Organisms and Incidence of Pathogenic Bacteria in Raw Beef Used for Korean Beef Jerky

  • Kim, Hyoun-Wook;Kim, Hye-Jung;Kim, Cheon-Jei;Paik, Hyun-Dong
    • Food Science and Biotechnology
    • /
    • v.17 no.6
    • /
    • pp.1337-1340
    • /
    • 2008
  • The objective of this study was to evaluate the microbial safety of raw beef used to produce Korean beef jerky, The raw beef samples harbored large populations of microorganisms. In particular, psychrophilic bacteria were found to be most numerous ($9.2{\times}10^3-1.0{\times}10^5\;CFU/g$) in the samples. Mesophilic bacteria and anaerobic bacteria were present in average numbers ($10^3-10^5\;CFU/g$). Spore-forming bacteria and coliforms were not detected below detection limit. Yeast and molds were detected at $2.2{\times}10^1-7.8{\times}10^2\;CFU/g$ in the raw beef. Ten samples of raw beef were analyzed for the presence of pathogenic bacteria. Bacillus cereus was isolated from sample B, G, and H. The B. cereus isolates from raw beef samples were identified with 99.8% agreement according to the API CHB 50 kit.

Detecting Android Malware Based on Analyzing Abnormal Behaviors of APK File

  • Xuan, Cho Do
    • International Journal of Computer Science & Network Security
    • /
    • v.21 no.6
    • /
    • pp.17-22
    • /
    • 2021
  • The attack trend on end-users via mobile devices is increasing in both the danger level and the number of attacks. Especially, mobile devices using the Android operating system are being recognized as increasingly being exploited and attacked strongly. In addition, one of the recent attack methods on the Android operating system is to take advantage of Android Package Kit (APK) files. Therefore, the problem of early detecting and warning attacks on mobile devices using the Android operating system through the APK file is very necessary today. This paper proposes to use the method of analyzing abnormal behavior of APK files and use it as a basis to conclude about signs of malware attacking the Android operating system. In order to achieve this purpose, we propose 2 main tasks: i) analyzing and extracting abnormal behavior of APK files; ii) detecting malware in APK files based on behavior analysis techniques using machine learning or deep learning algorithms. The difference between our research and other related studies is that instead of focusing on analyzing and extracting typical features of APK files, we will try to analyze and enumerate all the features of the APK file as the basis for classifying malicious APK files and clean APK files.

Applicative Value of Serum CA19-9, CEA, CA125 and CA242 in Diagnosis and Prognosis for Patients with Pancreatic Cancer Treated by Concurrent Chemoradiotherapy

  • Gu, Yu-Lei;Lan, Chao;Pei, Hui;Yang, Shuang-Ning;Liu, Yan-Fen;Xiao, Li-Li
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.16 no.15
    • /
    • pp.6569-6573
    • /
    • 2015
  • Objective: To evaluate the application value of serum CA19-9, CEA, CA125 and CA242 in diagnosis and prognosis of pancreatic cancer cases treated with concurrent chemotherapy. Materials and Methods: 52 patients with pancreatic cancer, 40 with benign pancreatic diseases and 40 healthy people were selected. The electrochemiluminescence immunoassay method was used for detecting levels of CA19-9, CEA and CA125, and a CanAg CA242 enzyme linked immunoassay kit for assessing the level of CA242. The Kaplan-Meier method was used for analyzing the prognostic factors of patients with pancreatic cancer. The Cox proportional hazard model was applied for analyzing the hazard ratio (HR) and 95% confidential interval (CI) for survival time of patients with pancreatic cancer. Results: The levels of serum CA19-9, CEA, CA125 and CA242 in patients with pancreatic cancer were significantly higher than those in patients with benign pancreatic diseases and healthy people (P<0.001). The sensitivity of CA19-9 was the highest among these, followed by CA242, CA125 and CEA. The specificity of CA242 is the highest, followed by CA125, CEA and CA19-9. The sensitivity and specificity of joint detection of serum CA19-9, CEA, CA125and CA242 were 90.4% and 93.8%, obviously higher than single detection of those markers in diagnosis of pancreatic cancer. The median survival time of 52 patients with pancreatic cancer was 10 months (95% CI7.389~12.611).. Patients with the increasing level of serum CA19-9, CEA, CA125, CA242 had shorter survival times (P=0.047. 0.043, 0.0041, 0.029). COX regression analysis showed that CA19-9 was an independent prognostic factor for patients with pancreatic cancer (P=0.001, 95%CI 2.591~38.243). Conclusions: The detection of serum tumor markers (CA19.9, CEA, CA125 and CA242) is conducive to the early diagnosis of pancreatic cancer and joint detection of tumor markers helps improve the diagnostic efficiency. Moreover, CA19-9 is an independent prognostic factor for patients with pancreatic cancer.

Fusion Analytical Sensitivity of Rapid Influenza Antigen Limit of Detection Tests for Human Influenza virus (인플루엔자 바이러스에 대한 신속 항원 검출 검사 검출한계의 융합적 분석)

  • Song, Chang-Sub;Sung, Hyun-Ho;Kim, Jung-Hyun;Kim, Dae-Eun;Park, Chang-Eun;Yoon, Joong-Soo
    • Journal of the Korea Convergence Society
    • /
    • v.9 no.3
    • /
    • pp.165-171
    • /
    • 2018
  • In this study, to analyze the detection of limit for sensitivity of the influenza rapid antigen test kit, the positive detection of limits were analyzed by serial dilution of influenza virus A and B type for five influenza rapid antigen test kits in Korea. As a result of analysis, visual measurement of type A were up to 1:8192 for the Wellsbio product and up to 1:4096 for the II product, up to 1:512 for the I and III products, and only 1:128 for the IV product, and type B were positive for up to 1:8192 for the Wellsbio product, up to 1: 4096 for the II product and up to 1:1024 for the I, III and IV products. For instrument readings with the same specimen, both A and B types were found to be positive for up to 1:8192 for the Wellsbio product, up to 1: 4096 for the II product, and up to 1:2048 for the I product. The sensitivity of the rapid antigen test for influenza differs greatly depending on the sampling area of the patient, infection period, specimen volume, etc. Therefore, it is necessary to observe exactly the collection timing and method of the specimen. And it is necessary further study to improve the sensitivity for influenza rapid antigen test.

Development of a Kit for Diagnosing AtCYP78A7 Protein in Abiotic-tolerant Transgenic Rice Overexpressing AtCYP78A7 (AtCYP78A7 과발현 환경스트레스 내성 형질전환 벼의 단백질 진단 키트 개발)

  • Nam, Kyong-Hee;Park, Jung-Ho;Pack, In-Soon;Kim, Ho Bang;Kim, Chang-Gi
    • Journal of Life Science
    • /
    • v.28 no.7
    • /
    • pp.835-840
    • /
    • 2018
  • Quantitative determination of the protein expression levels is one of the most important parts in assessment of the safety of foods derived from genetically modified (GM) crops. Overexpression of AtCYP78A7, a gene encoding cytochrome P450 protein, has been reported to improve tolerance to abiotic stress, such as drought and salt stress, in transgenic rice (Oryza sativa L.). In the present study, an enzyme-linked immunosorbent assay (ELISA) kit for diagnosing AtCYP78A7 protein including AtCYP78A7-specific monoclonal antibody was developed. GST-AtCYP78A7 recombinant protein was induced and purified by affinity column. Four monoclonal antibodies (mAb 6A7, mAb 4C2, mAb 11H6, and mAb 7E8) against recombinant protein were also produced and biotinylated with avidin-HRP. After pairing test using GST-AtCYP78A7 protein and lysate of rice samples, mAb 4C2 and mAb 7E8 were selected as a capture antibody and a detecting antibody, respectively, for ELISA kit. Product test using rice samples indicated that percentages of detected protein in total protein were greater than 0.1% in AtCYP78A7-overexpressing transgenic rice (Line 10B-5 and 18A-4), whereas those in negative control non-transgenic rice (Ilpum and Hwayoung) were less than 0.1%. The ELISA kit developed in this study can be useful for the rapid detection and safety assessment of transgenic rice overexpressing AtCYP78A7.