Elucidation of pathogenesis mechanism and development of diagnostic technology of Nonpathogenic pig ameba spread into Japan

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K15049
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Veterinary medical science
• Research Institution: Osaka Prefecture University
• Principal Investigator: Sasai Kazumi 大阪府立大学, 生命環境科学研究科, 教授 (70211935)
• Co-Investigator(Kenkyū-buntansha): 谷 浩行 大阪府立大学, 生命環境科学研究科, 准教授 (00305658) ; 松林 誠 大阪府立大学, 生命環境科学研究科, 准教授 (00321076) ; 古家 優 大阪府立大学, 生命環境科学研究科, 准教授 (30500706)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: Entamoeba / PCR / 原虫性消化器疾患 / 疫学 / 豚

Outline of Final Research Achievements

Entamoeba (E) histolytica forms amebic colitis or liver abscess when infected with humans, and in severe cases it is lethal. In recent years, parasitism of Ameba-like protozoa has been confirmed in swine exhibiting a lethal gastrointestinal symptom in Japan. However, in the conventional method, the species was not clarified. In order to clarify in detail the pathology of pigs infected with E, we performed the following analysis and constructed a typing method of four subtypes. In addition, E. polecki subtypes 1 and 3 were detected in swine exhibiting domestic refractory diarrhea. From the above, it is suggested that there are three species (subtype) of E in Japan, and that E. polecki may be more widely distributed.

Free Research Field

獣医内科学