2012 ©
             Publication
Journal Publication
Research Title Tempporal profiles of copro-antigen and egg DNA of opisthorchis viverrini in experimental opisthorchiasis: Implications for diagnosis and curative chemotherapy 
Date of Distribution 6 October 2011 
Conference
     Title of the Conference การประชุมวิชาการประจำปี คณะแพทยศาสตร์ ม.ขอนแก่น ครั้งที่ 27 ประจำปี 2554 
     Organiser คณะแพทยศาสตร์ ม.ขอนแก่น 
     Conference Place ห้องบรรยาย 1-4 อาคารเตรียมวิทยาศาสตร์คลินิก คณะแพทยศาสตร์ ม.ขอนแก่น 
     Province/State ขอนแก่น 
     Conference Date 4 October 2011 
     To 6 December 2011 
Proceeding Paper
     Volume 27 
     Issue
     Page 144 
     Editors/edition/publisher  
     Abstract Background and Objective: Effective control program of opisthorchiasis requires sensitive and specific diagnostic methods for screening and assessment of curative treatment. The purposes of the study were to compare copro-antigen and egg DNA detection for diagnosis of Opisthorchis viverrini infection in hamster. Performances of these diagnostic methods to assess curative chemotherapy are also evaluated. Methods: Two groups of hamsters were infected with a dose of 5, 10, 25 or 50 O. viverrini metacercariae/animal (5 hamsters/dose). In group 1, fecal samples of hamsters were collected at weekly intervals from 0-12 wk. Group 2 were treated orally with a single 400 mg/kg of praziquantel at week 6 post infection and fecal samples collected until week12. All fecal samples were examined by a quantitative formalin-ethyl acetate concentration (FECT). The presence of parasite copro-antigen was determined by monoclonal antibody enzyme-linked immunosorbent assay (MAb-ELISA) and egg DNA was detected by polymerase chain reaction (PCR). Results: By MAb-ELISA, copro antigen were detected in all infected groups of hamsters starting from week 2 post infection while, egg DNA were detected at week 3 and eggs were seen at week 4 post infection. After treatment, no egg or egg DNA was detected at 1 week post-treatment onwards. By contrast, copro-antigen was observed throughout the study period. Conclusions: PCR method may be useful for both diagnosis and evaluation of treatment while MAb-ELISA is useful for screening only at pre-treatment. The implication of persistence of copro antigen after treatment and its roles in disease development and CCA deserves further study.  
Author
507100001-5 Miss KUNYARAT DUENNGAI [Main Author]
Graduate School Doctoral Degree

Peer Review Status ไม่มีผู้ประเมินอิสระ 
Level of Conference ชาติ 
Type of Proceeding Abstract 
Type of Presentation Poster 
Part of thesis true 
ใช้สำหรับสำเร็จการศึกษา ไม่เป็น 
Presentation awarding true 
     Award Title รางวัลที่ 3 poster presentation  
     Type of award รางวัลด้านวิชาการ วิชาชีพ 
     Organiser คณะแพทยศาสตร์ ม.ขอนแก่น 
     Date of awarding 6 ตุลาคม 2554 
Attach file
Citation 0

<
forum