国立研究開発法人 国際農林水産業研究センター | JIRCAS

Diarrhea Caused by Enterococcus villorum in Piglets

JARQ : Japan Agricultural Research Quarterly
ISSN
00213551
書誌レコードID(総合目録DB)
AA0068709X
本文フルテキスト

Three of 10 piglets with watery diarrhea, aged 24, 21 and 22 days (cases 1, 2 and 3, respectively), were investigated in detail after euthanasia (as the remaining seven recovered without specific treatment). Enterococcal bacteria were isolated and multilocus sequence analysis showed 100% and 99% identity with the phenylalanyl tRNA synthase and RNA polymerase α subunit genes of strains of Enterococcus villorum, respectively. Histologically, severe epithelial desquamation, atrophy, and regeneration of ileal villi were observed in cases 1, 2 and 3, respectively. The number of bacteria was large in case 1, smaller in case 2, and sparse in case 3. These findings suggest that case 1 was at an earlier stage of enteropathy than case 2, and that case 3 was recovering. In case 1, the exfoliation of epithelial cells with many bacteria into the intestinal lumen was interpreted as a host reaction for eradicating marginally pathogenic enteroadherent bacteria. Folded smooth muscle cells and intact blood and lymphatic vessels in the atrophic lamina propria may have been linked to the rapid regeneration of villi.

刊行年月2017-07-01
作成者Yukiko TANIGUCHIYukino TAMAMURAYoshihiro WADAAyumi KOBAYASHITomoyuki SHIBAHARAYoshiharu ISHIKAWAKoichi KADOTA
著者キーワード

Desquamative enteropathy

enteroadherent bacterium

mucin

immunohistochemistry

公開者Japan International Research Center for Agricultural Sciences
データ作成日2017-07-01
国立情報学研究所メタデータ主題語彙集(資源タイプ)Journal Article
51
3
開始ページ287
終了ページ292
DOI10.6090/jarq.51.287
権利Japan International Research Center for Agricultural Sciences
関連するリソース : J-STAGE
言語eng