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송사리(Oryzias latipes)를 이용한 매립지에서의 내분비 교란물질 모니터링 시스템
( Makiko Tanaka ),( Kazuhiko Fukatsu ),( Ryota Shinohara ),( Koji Arizono ),( Hiroshi Ishibashi ),( Masataka Hanashima ),( Sotarou Higuchi ),( Keijirou Tomoda ) 한국폐기물자원순환학회 2002 APLAS Vol.2002 No.2
본 논문의 목적은 매립지와 매립지 주변환경에 대해서 송사리를 사용하여 실제 내분비교란물질에 대한 모니터링 시스템을 수립하는데 있으며, 그 모니터링 시스템은 2개phase 구성되어 있다. 첫번째 phase는 물에 대한 실험이며, 두번째 phase는 생태적 모니터링이다. 본 논문에서는 첫번째 phase에 관해서 나타내었으며, 이 실험에서는 처리되지 않는 침출수와 고도 처리된3가지(전기투석, 역삼투압, DT module system)의 침출수를 사용하여 실험을 실시하였다. 이때의 침출수는 일본의 若 松區北九州市에 위치한 매립지의 침출수를 이용하였다. 실험항목은 송사리의 태아, 치어, 성어의 급성 독성, 송사리의 생산성, 에스트로젠 활성도로써의 vitellogenesis 실험을 실시하였으며, 침출수의 의독성은 TOC농도에 따라 증가하였다. 송사리의 치어는 침출수의 독성 지표로 유용하였다. 비록, GC/MS를 이용하여 EDCs로 의심되는 물질이 검출될지라도, 처리되지 않은 침출수로부터의 2주간 노출시 vitellogenin는 유도되지 않았다. HIS는 희석된 침출수 (TOC 농도 107, 214mg/l)에 노출시 증가하였다. 침출수는 강한 복합독성을 가지고 있으므로, 오직 vitellogenin 변형만으로 침출수를 평가하기에는 어려움을 가지고 있으며, 생상성과 vitellogenesis는 2%농도에서 1-2주일간의 노출시 어떤 영향도 없었다. 고도처리된 침출수는 급성독성, 생산성과 vitellogenesis의 변화가 없었다. Our study aims to establish a practical monitoring system by using Japanese Medaka (Oryzias latipes) for drainage from a landfill site and the environment around k. The monitoring system consists of 2 phases. The first phase is water testes, and the second phase is ecological monitoring. In this paper, we reported the first phase. We carried out the first phase experiment using untreated leachate and treated leachate processed by 3 types of advanced processes (Electric dialysis, RO, and DT module system). Untreated and treated leachate from the processing plant, Wakamatsu-ku, Kitakyushu city, Japan was used. The test items were acute toxicity of embryo, juvenile and adult, fecundity, and vitellogenesis as an estrogenic activity. Toxicity of leachate increased according to TOC concentration. Juvenile of Medaka was a very useful indicator of the toxicity of the leachate. No vitellogenin was induced after 2 weeks exposure to untreated leachate, although suspected EDCs were detected by GC/MS or targeted analysis. HSI increased in the case of exposure to diluted leachate (TOC concentration, 107, 214 mg/l). As the leachate has strong complex toxicities, it is difficult to evaluate the leachate by vitellogenin inducing only. Fecundity and vitellogenesis ware not effected by exposure to 2% concentration of leachate for 1 and 2 weeks exposure. Advanced treated leachate induced no acute toxicity, vitellogenesis, and reproduction.
( Makiko Tanaka ),( Kazuhiko Fukatsu ),( Ryota Shinohara ),( Koji Arizono ),( Hiroshi Ishibashi ),( Masataka Hanashima ),( Sotarou Higuchi ),( Keijirou Tomoda ) 한국폐기물자원순환학회 2002 APLAS Vol.2002 No.1
Our study aims to establish a practical monitoring system by using Japanese Medaka (Oryzias latipes) for drainage from a landfill site and the environment around it. The monitoring system consists of 2 phases. The first phase is water testes, and the second phase is ecological monitoring. In this paper, we reported the first phase. We carried out the first phase experiment using untreated leachate and treated leachate processed by 3 types of advanced processes (Electric dialysis, RO, and DT module system). Untreated and treated leachate from the processing plant, Wakamatsu-ku, Kitakyushu city, Japan was used. The test items were acute toxicity of embryo, juvenile and adult, fecundity, and vitellogenesis as an estrogenic activity. Toxicity of leachate increased according to TOC concentration. Juvenile of Medaka was a very useful indicator of the toxicity of the leachate. No vitellogenin was induced after 2 weeks exposure to untreated leachate, although suspected EDCs were detected by GC/MS or targeted analysis. HSI increased in the case of exposure to diluted leachate (TOC concentration, 107, 214 mg/1). As the leachate has strong complex toxicities, it is difficult to evaluate the leachate by vitellogenin inducing only. Fecundity and vitellogenesis ware not effected by exposure to 2% concentration of leachate for 1 and 2 weeks exposure. Advanced treated leachate induced no acute toxicity, vitelogenesis, and reproduction.
Shinya Taki,Takao Maekita,Mayumi Sakata,Kazuhiro Fukatsu,Yoshimasa Maeda,Mikitaka Iguchi,Hidefumi Ito,Masayuki Kitano 대한소화기내시경학회 2019 Clinical Endoscopy Vol.52 No.6
Continuous duodenal levodopa/carbidopa intestinal gel delivery by a gastrostomy infusion system improves control of Parkinson’sdisease. The overall complication rates of percutaneous endoscopic gastrojejunostomy were reported to be 41% and 59% for immediateand delayed adverse events, respectively. A 72-year-old woman underwent percutaneous endoscopic gastrojejunostomy using thedelivery system noted above. Abdominal pain and vomiting occurred 3 months later. Esophagogastroduodenoscopy showed alongitudinal ulcer extending from the lower gastric body to the ileum end, with small intestinal telescoping. Colonoscopy showed alarge bezoar of food residue that was attached around the tip of the tube, reaching the ascending colon, which may have acted as ananchor. Thus, the gastric antrum and small intestine were shortened with telescoping. This complication was resolved by crushing thebezoar with forceps during colonoscopy and can be prevented by consuming a fiber-free diet and periodic exchanges of the tube usingesophagogastroduodenoscopy.
Kim, J.K.,Lee, J.B.,Jang, H.A.,Han, Y.S.,Fukatsu, T.,Lee, B.L. Pergamon Press ; Elsevier Science 2016 DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY Vol.64 No.-
<P>Valuable insect models have tremendously contributed to our, understanding of innate immunity and symbiosis. Bean bug, Riptortus pedestris, is a useful insect symbiosis model due to harboring cultivable monospecific gut symbiont, genus Burkholderia. Bean bug is a hemimetabolous insect whose immunity is not well-understood. However, we recently identified three major antimicrobial peptides of Riptortus and examined the relationship between gut symbiosis and host immunity. We found that the presence of Burkholderia gut symbiont positively affects Riptortus immunity. From studying host regulation mechanisms of symbiont population, we revealed that the symbiotic Burkholderia cells are much more susceptible to Riptortus immune responses than the cultured cells. We further elucidated that the immune susceptibility of the Burkholderia gut symbionts is due to the drastic change of bacterial cell envelope. Finally, we show that the immune-susceptible Burkholderia symbionts are able to prosper in host owing to the suppression of immune responses of the symbiotic midgut. (C) 2016 Elsevier Ltd. All rights reserved.</P>
Field Server Monitoring System for Construction of IT Farming and Agri-tourism
Yasunori Saito,Takanobu Suzuki,Kin-ichi Kobayashi,Katsuharu Sato,Masayuki Hirafuji,Tokihiro Fukatsu,Ryozo Ichimura,Ryoichi Yashiro,Setsuo Takeuchi,Kazuhiko Yuasa,Sumio Watanabe,Fumitoshi Kobayashi,Tak 제어로봇시스템학회 2006 제어로봇시스템학회 국제학술대회 논문집 Vol.2006 No.10