MP-6 Coccidiosis Intestinal Dysmotility in C57BL/6 Mice

Recently, anecdotal report was arisen that coccidiosis in cattle resulted in delayed intestinal motility. The occurrence of delayed intestinal motility has been never briefly reported. However, some study indicated a delay in intestinal motility. A study in cattle coccidiosis reported a transient increase of nutrients apparent digestibility, especially of crude fiber index, during clinical coccidiosis and that anorexia and intestinal leakage impaired the nitrogen balance, causing weight depression. The observation may have reflected intestinal hypomotility, however, this work did not observe the intestinal motility directly. Another study indicated that Eimeria infection in rabbit could induce intestinal motility disturbance. The disturbance, however, did not indicate as general delay in intestinal transit, because some part of the intestine experienced faster motility and another part indicated slower motility.As one of the cosmopolitan diseases of production animal, the occurrence of intestinal dysmotility by coccidiosis need to be clarified. And a control measure against intestinal dysmotility of coccidiosis need to be proposed soon after the clarification of its clinical existence. Therefore, we designed a study with murine Eimeria as model to provide evidence for better approach toward this emerging issue

MP-11 Eimeria pragensis Induce Immune Mediated Intestinal Hypomotility in C57BL/6 Mice

The manifestation of intestinal dysmotility of coccidiosis has never been briefly reported before. From murine Eimeria study we concluded that Eimeria pragensis (Ep) is capable to induce intestinal hypomotility described to be similar to pan-enteric ileus.In comparison with the intestinal dysmotility in postoperative ileus which is orchestrated by TH1 immune response [1], a local injury to some part of intestine could trigger pan-enteric ileus. If the TH1 immune response could also be induced in Ep infection, the delay in intestinal motility could be explained as similar mechanism as the post-operative ileus. Since the Ep infestation occurred in the ileocecal part of the intestines, with similar mechanism of post-operative ileus, the pan-enteric ileus could be triggered. In this study, we tried to find a relationship between intestinal dysmotility and TH1 immune response in murine coccidiosis

Adult Worm Exclusion and Histological Data of Dogs Repeatedly Infected with the Cestode \u3ci\u3eEchinococcus multilocularis\u3c/i\u3e

The data presented in this article are related to a previously published research article titled The timing of worm exclusion in dogs repeatedly infected with the cestode Echinococcus multilocularis (Kouguchi et al. 2016). This data describe a comparison of worm exclusion in the early stage of infection (1 day and 6 days post-infection) between dogs infected for the first time (control group) and dogs repeatedly infected with the parasite 4 times (repeated infection groups). We observed that 6 days post reinfection, the number of adult worms in repeated-infection groups decreased by 88.7% compared with the control group. Histological analysis comparison of the small intestinal mucosa from healthy, first infected, and repeatedly infected dogs are also reported. We observed no clear pathological abnormality, except the shortening of microvillus in reinfected dogs. However, eosinophil accumulation and eosinophilic ulcers were observed in some reinfected dogs. This data could be useful as preliminary data to develop a final host vaccine for this parasite

First Report of Trichinella nativa in Red Foxes（Vulpes vulpes schrencki) from Otaru City,Hokkaido,Japan

北海道小樽市で捕獲された43頭のキタキツネと9頭のタヌキについて、筋肉中のトリヒナ線虫の寄生状況を調べた。そのうち5頭のキツネからトリヒナ線虫の一種Trichinella nativaの幼虫が検出された。この発見は、北海道でキタキツネが、トリヒナ線虫の野外型の生活環維持の重要な宿主であることを示唆している。北海道におけるキタキツネからT.nativaの寄生報告は、最初のものである

Case report: Echinococcus multilocularis infection in a dog showing gastrointestinal signs in Hokkaido, Japan

Echinococcus multilocularis is a cestode that causes human alveolar echinococcosis, a lethal zoonotic disease distributed in the northern hemisphere. The life cycle of this parasite is maintained in nature by voles as intermediate hosts and foxes as definitive hosts in Hokkaido, Japan. Although dogs are also susceptible to the parasite, the infection has been considered typically asymptomatic. We report the detection of E. multilocularis eggs in the diarrheal feces of a dog with chronic gastrointestinal signs, which disappeared after anthelmintic treatment. The mitochondrial genome sequence constructed by sequencing of the overlapping PCRs using DNA from the eggs was identical to the most predominant haplotype previously reported in red foxes in Hokkaido. This case highlights that Echinococcus infection should be considered as a differential diagnosis for diarrheal dogs in the disease endemic areas. Further efforts are needed to accumulate parasite genotypes in domestic dogs as well as humans to assess the risk of human infection from dogs

Anthropogenic interferences lead to gut microbiome dysbiosis in Asian elephants and may alter adaptation processes to surrounding environments

Human activities interfere with wild animals and lead to the loss of many animal populations. Therefore, efforts have been made to understand how wildlife can rebound from anthropogenic disturbances. An essential mechanism to adapt to environmental and social changes is the fluctuations in the host gut microbiome. Here we give a comprehensive description of anthropogenically induced microbiome alterations in Asian elephants (n = 30). We detected gut microbial changes due to overseas translocation, captivity and deworming. We found that microbes belonging to Planococcaceae had the highest contribution in the microbiome alterations after translocation, while Clostridiaceae, Spirochaetaceae and Bacteroidia were the most affected after captivity. However, deworming significantly changed the abundance of Flavobacteriaceae, Sphingobacteriaceae, Xanthomonadaceae, Weeksellaceae and Burkholderiaceae. These findings may provide fundamental ideas to help guide the preservation tactics and probiotic replacement therapies of a dysbiosed gut microbiome in Asian elephants. More generally, these results show the severity of anthropogenic activities at the level of gut microbiome, altering the adaptation processes to new environments and the subsequent capability to maintain normal physiological processes in animals