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動物園飼育ユキウサギLepus timidus胃内における毛様線虫類Obeliscoides leporisの濃厚寄生症例について
Article旭川市旭山動物園で飼育されていたユキウサギLepus timidusの幼若個体が斃死した。剖検によって、胃において毛様線虫類の濃厚寄生状態が確認された。その形態および計測値を行ったところ、Obeliscoides leporisと同定された。本線虫はユキウサギを特異的な宿主とする普通種であるが、このような寄生状態の報告は前例がなく、貴重な資料となった。journal articl
Parasites of free-ranging terrestrial vertebrates in Kushiro Zoo, Hokkaido, Japan (Further investigation)
Bulletin北海道釧路動物園内およびその周辺に生息した両生爬虫類および鳥類の寄生虫保有状況を調査し,ダニ類と蠕虫類を得た。また,これまでの調査結果をもとに教育的な応用について論考した。Parasites of free-ranging terrestrial vertebrates in Kushiro Zoo, Hokkaido, Japan, were investigated, and ticks, mites and helminths were obtained. And, an application plan based on the results for one health education was given.departmental bulletin pape
The Ethics between Humans and Non-humans: The Concept of Animism and Techno-Animism
journal articleThe terms ‟animism” and ‟techno-animism” are broadly misunderstood. On the one hand, psychologists tend to see animism as a state that people cannot distinguish living things from non-living things, on the other hand, social theorists use animism with various meanings. There is great confusion around these terms. I propose organizing the various concepts of ‟animism” by categories that are inspired by J. Piaget, even though his contribution is not appreciated properly. I suggest that there are three categories of animism. Animism-1 is a state that people cannot distinguish living things from non-living things, or reality from fantasy. Animism-2 means a state that people can distinguish living things from non-living things to some degree, yet the differentiation does not reach completion. Animism-3 is a state that people can recognize living and non-living things at the same time, while knowing there is a clear difference. The last category includes ‟techno-animism” in which people see animacy even in products of technology. ‟Animism” has been attributed to a so-called primitive state of cognition, but animistic mentality is rather normal in everyone, not only in children or primitive tribes, but also in adults or modernized societies. Japan has an animistic culture such as Shintoism and is (in)famous for creation of fantasy with techno-animism. However, my analysis shows the uniqueness of Japan is only in juxtaposition of industrialization and techno-animism. Humans might be animists by default, but sometimes feel the need to oppress animistic thoughts. In the modern world, we need to pretend to be rational and sane, thus magic and fantasy are just for children. Nevertheless, ethics between humans and non-humans that we need right now, such as an ethic of animals, ethic of robots, and ethic of environment seem to require an amalgam of animistic mentality and rational drive.journal articl
Rheumatologic manifestations with elevated levels of IL-6, IL-17A, and IL-23 in a patient with scurvy
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Adverse effects of thyroid-hormone-disrupting chemicals 6-propyl-2-thiouracil and tetrabromobisphenol A on Japanese medaka (Oryzias latipes)
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Successful treatment of sclerosing encapsulating peritonitis in a cat using bioresorbable hyaluronate-carboxymethylcellulose membrane after surgical adhesiolysis and long-term prednisolone
journal article[Case summary] An 8-year-old neutered male domestic shorthair indoor cat was presented with an 8-week history of intermittent vomiting, anorexia and weight loss that had been unresponsive to supportive treatment. Abdominal ultrasound revealed plication of the small intestine and fluid accumulation proximal to the lesion, and a linear foreign body was suspected. An exploratory celiotomy showed cocoon-like encapsulation of the entire intestine. Surgical adhesiolysis and full-thickness biopsy were performed, and histopathologic examination revealed mild thickening of the visceral peritoneum with fibrin deposition, as well as mild neutrophil and lymphocyte infiltration. These findings were compatible with sclerosing encapsulating peritonitis (SEP). The cat recovered well postoperatively and was discharged the next day. Prednisolone was administered for 7 weeks to prevent recurrence of SEP. Five months after surgery, the cat was re-presented with anorexia and chronic vomiting. Based on the clinical examination findings, recurrent SEP was suspected. At the second surgery, surgical adhesiolysis was repeated and a bioresorbable hyaluronate-carboxymethylcellulose membrane was used to cover the serosal surface and thus prevent adhesion formation. Histopathologic findings of the peritoneal biopsy specimen confirmed SEP. Long-term prednisolone treatment (1 mg/kg for the first dose and 0.5 mg/kg every 48 h for maintenance) was administered postoperatively. The cat survived for more than 1239 days without recurrence. [Relevance and novel information] To our knowledge, this is the first report of SEP in a cat with long-term survival. The use of a bioresorbable hyaluronate-carboxymethylcellulose membrane and long-term prednisolone treatment may have prevented short-term and long-term recurrence, respectively, in this case.journal articl