Affiliation |
Faculty of Agriculture Department of Veterinary Science |
Title |
Associate Professor |
External Link |
IRIE Takao
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Papers 【 display / non-display 】
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Naoki Hayashi, Ryo Nakao, Yuma Ohari, Takao Irie, Hirokazu Kouguchi, Elisha Chatanga, Wessam Mohamed Ahmed Mohamed, Mohamed Abdallah Mohamed Moustafa, Gohta Kinoshita, Munehiro Okamoto, Kinpei Yagi, Nariaki Nonaka
iScience 26 ( 10 ) 107741 - 107741 2023.10
Language:English Publishing type:Research paper (scientific journal) Publisher:Elsevier BV
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Current Status and Issues of Utilization of Wild Animal Meat for Pet Food in Japan Reviewed
TAKAI Shinji, SUZUKI Yasunori, KABEYA Hidenori, ANDOH Masako, IRIE Takao, YAMAZAKI Akiko, UNE Yumi, SUGIYAMA Hiromu, ASAKURA Hiroshi, MAEDA Ken
Journal of the Japan Veterinary Medical Association 76 ( 9 ) e213 - e225 2023.9
Language:Japanese Publishing type:Research paper (scientific journal) Publisher:Japan Veterinary Medical Association
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Suzuki Y, Ishitsuka T, Takagi M, Sasaki Y, Kakuda T, Kobayashi K, Kubota H, Ono HK, Kabeya H, Irie T, Andoh M, Asakura H, Takai S
Folia microbiologica 69 ( 2 ) 347 - 360 2023.7
Language:English Publishing type:Research paper (scientific journal) Publisher:Folia Microbiologica
The populations of Japanese deer and boar have increased dramatically and have a serious impact on farming and mountain villages. Although the Japanese government promotes the use of captured wild animals, game meat is not subject to sanitary control considering that it is not subject to meat inspection or quality control. Here, we have attempted to isolate Staphylococcus aureus, a typical foodborne pathogen, as a part of an investigation of contamination in the meats of wild animals and their processing stages. We examined 390 samples of deer feces, 117 samples of wild boar feces, and 75 samples of disemboweled deer meat for isolation of S. aureus; ultimately, 30 (positive rate: 7.7%), 2 (1.7%), and 21 (28.0%) strains were isolated, respectively, from the samples. The genome sequences of these isolates were analyzed and were subjected to multilocus sequence typing. We identified 12 new sequence types (STs) and a dominant population of S. aureus with a characteristic genetic background in wild animals, namely, the ST groups derived from CC121 (number of strains = 39). These strains did not harbor the enterotoxin gene or only harbored egc-related enterotoxin, which is of low involvement in Staphylococcal food poisoning. However, one ST2449 strain, which produces causative enterotoxins, was isolated from a deer’s feces. Since there are several common STs isolated from feces and dismembered meat and because fecal contamination during dismemberment is suspected, continuous monitoring and guidance for improving sanitary management conditions during processing and handling of the meat are highly warranted with immediate effect.
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Chiho Kaneko, Akio Shinohara, Taisei Kikuchi, Asami Tokuda, Takao Irie, Kentaro Yamada, Naoaki Misawa, Ayako Yoshida
Mammalian Biology 103 ( 4 ) 363 - 373 2023.5
Language:English Publishing type:Research paper (scientific journal) Publisher:Springer Science and Business Media LLC
DOI: 10.1007/s42991-023-00362-7
Other Link: https://link.springer.com/article/10.1007/s42991-023-00362-7/fulltext.html
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Chiho Kaneko, Hirohisa Mekata, Kazumi Umeki, Putu Eka Sudaryatma, Takao Irie, Kentaro Yamada, Naoaki Misawa, Kunihiko Umekita, Tamaki Okabayashi
Ticks and Tick-borne Diseases 14 ( 2 ) 102115 - 102115 2023.3
Language:English Publishing type:Research paper (scientific journal) Publisher:Elsevier BV
Books 【 display / non-display 】
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獣医公衆衛生学
伊藤直人、上野俊治、壁谷英則、苅和宏明、佐藤至、丸山総一、三澤尚明、三宅眞実、森田幸雄( Role: Contributor)
文永堂出版 2024.3
Language:Japanese Book type:Textbook, survey, introduction
MISC 【 display / non-display 】
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Echinococcus ortleppi infection in humans: An emerging zoonosis in Asia
Yoshida A., Irie T., Le L.A., Bui K.L., Nawa Y.
Parasitology International 103 102949 2024.12
Language:English Publishing type:Rapid communication, short report, research note, etc. (scientific journal) Publisher:Parasitology International
Echinococcus ortleppi is the genotype G5 of Echinococcus granulosus sensu lato and is a zoonotic canine tapeworm of which larvae causes cystic diseases in domestic animals and also humans. While this species is highly endemic and widely spread in domestic animals, human infection is extremely rare and only sporadic, and thus, entire picture of human cystic echinococcosis due to infection with E. ortleppi is unclear. We have made an extensive literature review on the cases of E. ortleppi infection in humans and found a total of 19 cases from various places in the world with recent emergence in Asian countries.
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九州地域の野生獣肉における住肉胞子虫の保有状況
渡部峻也, 入江隆夫, 入江隆夫, 和田啓, 中村鉄平, 中村鉄平, 市居修, 市居修, 市居修, 山崎朗子, 吉田彩子, 吉田彩子
日本寄生虫学会大会プログラム・抄録集 93rd 2024
Publishing type:Rapid communication, short report, research note, etc. (scientific journal)
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Considering the assembly methods for the draft genome of Echinococcus multilocularis using the long-read sequencer MinION
今里裕平, 中尾亮, 孝口裕一, 入江隆夫, 八木欣平, 野中成晃
日本寄生虫学会大会プログラム・抄録集 89th 2020
Publishing type:Rapid communication, short report, research note, etc. (scientific journal)
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多包条虫卵の殺卵処理による比重変化とMini-FLOTAC装置を利用した検査法の評価
紀田泉, 孝口裕一, 入江隆夫, 八木欣平, 中尾亮, 野中成晃
日本獣医学会学術集会講演要旨集 163rd 2020
Publishing type:Rapid communication, short report, research note, etc. (scientific journal)
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Comparative analysis on the migration dynamics of Echinococcus multilocularis oncospheres in two mouse strains
林直樹, 中尾亮, 孝口裕一, 今里裕平, 入江隆夫, 八木欣平, 野中成晃
日本寄生虫学会大会プログラム・抄録集 89th 2020
Publishing type:Rapid communication, short report, research note, etc. (scientific journal)
Presentations 【 display / non-display 】
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多包虫症の新規検査法の標的としての宿主血中循環セルフリーDNAの評価
入江 隆夫、伊東 拓也、後藤 明子、中尾 亮、迫 康仁、水村 匡伸、長野 礼太郎、吉田 彩子、山野 公明
第94回日本寄生虫学会大会
Event date: 2025.3.18 - 2025.3.19
Language:Japanese Presentation type:Oral presentation (general)
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イノシシで成熟できる単為生殖型肝蛭の集団遺伝構造の解析
水野雄介, 入江隆夫, 水村匡伸, 吉田彩子
第94回日本寄生虫学会大会
Event date: 2025.3.18 - 2025.3.19
Language:Japanese Presentation type:Oral presentation (general)
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宮崎県内における猫の犬糸状虫感染状況調査
宮﨑 ありさ, 入江 隆夫, 日髙 千佳子, 吉田 彩子
第76回 日本寄生虫学会 南日本支部大会 第73回 日本衛生動物学会 南日本支部大会 合同大会
Event date: 2024.10.12 - 2024.10.13
Language:Japanese Presentation type:Oral presentation (general)
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ネズミ糞線虫およびベネズエラ糞線虫宿主体内移行経路の検討
加藤さらさ、田中美緒、Safira Rosalina、Mari Ishida、丸山治彦、入江隆夫、吉田彩子
第76回 日本寄生虫学会 南日本支部大会 第73回 日本衛生動物学会 南日本支部大会 合同大会
Event date: 2024.10.12 - 2024.10.13
Language:Japanese Presentation type:Oral presentation (general)
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イノシシで成熟できる単為生殖型肝蛭の集団遺伝構造の解析
水野 雄介, 入江 隆夫, 水村 匡伸, 吉田 彩子
第76回 日本寄生虫学会 南日本支部大会 第73回 日本衛生動物学会 南日本支部大会 合同大会
Event date: 2024.10.12 - 2024.10.13
Language:Japanese Presentation type:Oral presentation (general)
Awards 【 display / non-display 】
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第13回 日本獣医寄生虫学奨励賞
2022.9 日本獣医寄生虫学会 エキノコックス症制御のための終宿主動物対策
入江隆夫
Award type:Award from Japanese society, conference, symposium, etc.
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令和4年度獣医学術九州地区学会(獣医公衆衛生学会)九州地区獣医師会連合会会長賞
2022.9 九州地区獣医師会連合会 九州産ジビエの住肉胞子虫の保有状況と流行種
渡部峻也 、中村鉄平 、市居修 、吉田彩子 、入江隆夫
Award type:Award from Japanese society, conference, symposium, etc.
Grant-in-Aid for Scientific Research 【 display / non-display 】
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野生鳥獣の食肉利用に関わるリスク分析に資する研究
Grant number:24KA1004 2024.04 - 2027.03
厚生労働省 令和6年度厚生労働科学研究費補助金(食品の安全確保推進研究) 応用研究
Authorship:Coinvestigator(s)
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寄生虫由来の宿主コミュニケーション因子 血中循環核酸の網羅的同定と診断利用
Grant number:21K16325 2021.04 - 2025.03
日本学術振興会 科学研究費補助金 若手研究
入江 隆夫
Authorship:Principal investigator
第一年度は特にエキノコックスを対象として研究を実施した。多包条虫卵を感染させたコットンラットの、感染後2か月(5検体)および5か月以降(4検体)の血液からccfDNAを抽出し、濃度を確認後、次世代シークエンス解析に供した。得られたccfDNA量は血漿1 mlから0.6 ng~11.5 ng と微量かつばらつきがあったが、すべての検体でショットガンシークエンスが可能であった。各検体について約500万リードを得て、多包条虫のゲノム配列にマッピングを行ったところ、0.5%ほどの配列が相同性を示した。このうち、多包条虫特異的であり、かつリード数が多いものを選別し、リアルタイムPCRでの検出系を検討している。現時点では診断系の候補配列の決定には至っていないが、検討したうちの1配列では、多包虫が十分に成熟して原頭節の形成のみられる感染5か月以降の検体において、極めて高感度に検出可能となるリアルタイムPCR系が得られている。引き続き他の配列についても評価を行い、感染初期を含む全期間にわたり検出可能となる検出系を構築を目指す。
肺吸虫については、実験感染に用いる肺吸虫種を、当初予定していた大平肺吸虫から、人獣共通種である宮崎肺吸虫に変更した。疫学調査により、当該種のメタセルカリアを保有する淡水産カニの分布地を特定したので、第二年度にはラットへの実験感染、血液検体の採取とccfDNAの抽出、そしてショットガンシークエンスを実施する。
野生動物の疫学調査の過程で、タヌキのウエステルマン肺吸虫3倍体、アナグマの宮崎肺吸虫の感染例を見出した。加えて、当該タヌキの取得地点に近接する川で、中間宿主であるモクズガニを捕獲してメタセルカリアの保有状況を調査したところ、高率かつ濃厚なウエステルマン肺吸虫3倍体メタセルカリアの感染を認め、同地点で確かに生活環が維持されていることを示した。 -
野生鳥獣由来食肉の食中毒発生防止と衛生管理ガイドラインの改良に資する研究
Grant number:21KA0401 2021.04 - 2024.03
厚生労働省 食品の安全確保推進研究事業 応用研究
Authorship:Collaborating Investigator(s) (not designated on Grant-in-Aid)
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Disease control of Echinococcus multilocularis by development of anti-echinococcus drug and vaccine-bait for both definitive and intermediate hosts
Grant number:17K08815 2017.04 - 2020.03
Japan Society for the Promotion of Science Grant-in-Aid for Scientific Research Grant-in-Aid for Scientific Research(C)
Kouguchi Hirokazu
Authorship:Coinvestigator(s)
In this research, we showed that atovaquone (ATV), a commercially available drug, inhibited mitochondrial complex III activities of E. multilocurlaris. The culture experiments revealed the ability of ATV to kill protoscoleces. Additionally, we demonstrated that oral administration of ATV significantly reduced primary hydatid cyst development in the mouse liver, indicating that complex III is one of a promising target for development of anti-echinococal drug. To understand mechanisms of adult worm exclusion in dogs infected with E. multilocularis, we tried to induce host protective immune responses against adult worm by long-term oral administration of adult worm antigens. As a result, around half of dogs examined in this study showed adult worm exclusion largely, however the other half of dogs did not showed significant adult worm exclusion. To reinforce this exclusion, it was considered to be a strong immunization technique was needed for induction of host protection immunity in dogs.
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An epidemiological study on echinococcosis in Qinghai, China, and development of a chemotherapeutic drug for humans and domestic animals
Grant number:26304041 2014.04 - 2017.03
Grant-in-Aid for Scientific Research Grant-in-Aid for Scientific Research(B)
Nonaka Nariaki, HORII Yoichiro, KOUGUCHI Hirokazu, IRIE Takao, LEE Wei, GUO ZhiHong, NI Ma, ENKAI Shigehiro, KAI Feng
In order to contribute to the echinococcosis control in Qinghai province, China, an epidemiological survey and a deworming trial were conducted. Since the feces of foxes, one of the most important definitive hosts of Echinococcus multilocularis, were deposited away from the residence area of nomad people, the risk of E. multilocularis transmission from foxes to humans was assumed to be low. Although a deworming trial was conducted to evaluate the effect of education on deworiming conductivity, a national deworming trial of dogs was started in the last year at our study site, thus, the effect of education could not be elucidated. In parallel to this, a new chemotherapeutic drug for echinococcosis was developed against mitochondrial respiratory chain of the parasite and an effective compound that reduced the cyst development of E. multilocularis was discovered.