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Schistosomiasis haematobia : Hidden morbidity bared on the studies on the villagers' perception of disease

Research Project

Project/Area Number 15406017
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section海外学術
Research Field Parasitology (including Sanitary zoology)
Research InstitutionInstitute of Tropical Medicine, Nagasaki University

Principal Investigator

AOKI Yoshiki  Nagasaki Univ., Institute of Tropical Medicine, Prof., 熱帯医学研究所, 教授 (90039925)

Co-Investigator(Kenkyū-buntansha) KANATAKE Hiroshi  Nagasaki Univ., Grad. School of Biomedical Science, Prof., 大学院医歯薬学総合研究科, 教授 (50100839)
NOMATA Koichiro  Nagasaki Univ., Grad. School of Biomedical Science, Assoc.Prof., 大学院医歯薬学総合研究科, 助教授 (80189430)
MOJI Kazuhiko  Nagasaki Univ., Inst. of Tropical Medicine, Prof., 熱帯医学研究所, 教授 (80166321)
WATANABE Kanji  Nagasaki Univ., Inst. of Tropical Medicine, Research Associate, 熱帯医学研究所, 助手 (70325679)
HAMAMOTO Mitsuru  Kyusyu Univ., Grad. School of Human-Environment Studies, Prof., 大学院・人間環境学研究科, 教授 (40156419)
Project Period (FY) 2003 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥13,200,000 (Direct Cost: ¥13,200,000)
Fiscal Year 2005: ¥4,300,000 (Direct Cost: ¥4,300,000)
Fiscal Year 2004: ¥4,000,000 (Direct Cost: ¥4,000,000)
Fiscal Year 2003: ¥4,900,000 (Direct Cost: ¥4,900,000)
Keywordsschistosomiasis haematobia / micturition / uro-flow meter / symptoms / treatment / prevention of infection / water supply / Kenya / ビルハルツ住血吸虫 / 血尿 / 蛋白尿 / 白血球尿 / 学童 / 尿中虫卵 / IPSS / 尿流量 / 膀胱 / ビルハルツ住血吸血 / I-PSS / 残尿
Research Abstract

The present study was attempted to examine qualitatively and quantitatively the micturition caused by Schistosoma haematobium infection, and to know the efficacy of treatment on micturition in Kenya. In addition, we examined the effect of the simple and less expensive piped water supply to the community on the prevention of schistosomiasis.
1. Qualitative and quantitative studies on micturition :
In the endemic areas of schistosomiasis and non-endemic area, the school boys and men were examined for micturition by International Prostate symptoms Score (IPSS) and uro-flow meter. Villagers in the endemic areas showed significantly higher IPSS value. Among the indicators of uro-flow meter, high value of T-delay was noticed for school boys in the endemic areas. The men of the endemic areas showed reduced Qmax and Qave corrected by urine volume.
These results indicate that villagers in the endemic areas of schistosomiasis suffer from any symptoms and signs of micturition. The boys need the longer time to start urination after they feel an urge of urination. Men were likely to present less powerful urination.
2. Effect of treatment on micturition :
The school boys were examined for micturition by uro-flow meter and questionnaire made by an anthropologist. The study disclosed the symptoms of micturition. For example, the patients have the pain at the end of urination. Unexpectedly, any symptoms and signs of micturition were not improved 6 months after treatment.
3. Effect of piped water supply on the prevention of schistosomiasis :
Community piped water provided by NGO was expected to be effective for the prevention of schistosomiasis. However, the observation on eggs in urine, human-water contact at river, and utilization of piped water by villagers did not show any effect on the prevention of schistosomiasis.

Report

(4 results)
  • 2005 Annual Research Report   Final Research Report Summary
  • 2004 Annual Research Report
  • 2003 Annual Research Report
  • Research Products

    (3 results)

All 2003 Other

All Journal Article (2 results) Publications (1 results)

  • [Journal Article] Cercariometry for detection of transmission sites for Schistosomiasis2003

    • Author(s)
      Aoki Y., et al.
    • Journal Title

      Parasitology International 52

      Pages: 403-408

    • NAID

      50000375176

    • Related Report
      2004 Annual Research Report
  • [Journal Article] The involvement of cAMP in the control of Schistosome miracidium cilia2003

    • Author(s)
      Matsuyama H., Aoki Y., et al.
    • Journal Title

      Journal of Parasitology 90

      Pages: 8-14

    • Related Report
      2004 Annual Research Report
  • [Publications] Aoki., et al.: "Carcariometry for detection of transmission sites for Schistosomiasis"Parasitology International. 52. 403-408 (2003)

    • Related Report
      2003 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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