- 著者
- Hideharu Hagiya Tomohiro Terasaka Kosuke Kimura Asuka Satou Kikuko Asano Koichi Waseda Yoshihisa Hanayama Fumio Otsuka
- 出版者
- 一般社団法人 日本内科学会
- 雑誌
- Internal Medicine (ISSN:09182918)
- 巻号頁・発行日
- vol.53, no.18, pp.2159-2163, 2014 (Released:2014-09-15)
- 参考文献数
- 37
- 被引用文献数
- 1 5
We herein report a case of persistent methicillin-resistant Staphylococcus aureus (MRSA) bacteremia that was successfully treated with combination therapy consisting of high-dose daptomycin (DAP, 10 mg/kg) and rifampicin. The patient's condition was complicated with multiple infectious foci, including an iliopsoas abscess and epidural abscess, as well as discitis and spondylitis at the cervical, thoracic and lumbar levels. Monotherapy treatments with vancomycin, linezolid and usual-dose DAP were all ineffective. It has been shown that usual-dose DAP administration may result in the emergence of a resistant strain and treatment failure. We would like to emphasize the importance of high-dose DAP therapy for MRSA bacteremia, a condition with a potentially high mortality rate.
- 著者
- Takehiro HIRAYAMA Tomoyuki SHIBATA Masako YOSHIKAWA Khadidja ABBOU–KÉBIR Kosuke KIMURA Yasuhito OSANAI Kaushik DAS Yasutaka HAYASAKA Keiji TAKEMURA
- 出版者
- Japan Association of Mineralogical Sciences
- 雑誌
- Journal of Mineralogical and Petrological Sciences (ISSN:13456296)
- 巻号頁・発行日
- vol.117, no.1, pp.211217b, 2022 (Released:2022-11-30)
- 参考文献数
- 40
- 被引用文献数
- 1
Granitic and gabbroic xenoliths have been found within dacitic lavas in the Hime–shima volcanic group (HVG) of northeastern Kyushu, Japan. The HVG is located near the boundary between the Ryoke and Sangun belts, suggesting that the HVG and associated crustal xenoliths may provide insights into the subsurface distribution of the Ryoke and Sangun belts in Kyushu. This study focuses on xenoliths obtained from the coastal boulders near the Kane Lava of the HVG. The HVG xenoliths consist of gabbro, gabbroic diorite, amphibolite, gneiss, basaltic andesite, and tuffaceous sandstone, with the latter two types resembling those found in the basement rocks of the HVG. The gabbroic xenoliths are geochemically similar to gabbros in the Ryoke belt. The U–Pb dating for zircon in the gneiss xenoliths yielded a metamorphic age of ~ 111 Ma with Th/U values <0.1, similar to the age obtained for metamorphic rocks in or of the Ryoke belt. The new data presented in this study indicate that the xenoliths in the HVG were derived from basement units associated with the Ryoke belt, which in turn, means that the HVG is tectonically underlain by the Ryoke belt. This also suggests that the Ryoke belt extends further north in Kyushu than was previously considered, as implied by the presence of this belt directly below the HVG.
- 著者
- Kenta Kawaguchi Kosuke Kimura Yasutaka Hayasaka Kenichi Hoshino Ikuo Okada Kensuke Kuroshima
- 出版者
- The Geological Society of Japan
- 雑誌
- 地質学雑誌 (ISSN:00167630)
- 巻号頁・発行日
- vol.127, no.5, pp.293-304, 2021-05-15 (Released:2021-09-29)
- 参考文献数
- 52
- 被引用文献数
- 1
The Suo Metamorphic Complex is characterized as subduction-related Triassic high P/T type metamorphic rocks occurring in southwest Japan. Recently, we have discovered tonalite mylonite (“Otabara tonalite”) from the Tsuno Group, Suo Metamorphic Complex in the western Chugoku province. LA-ICP-MS zircon U-Pb dating of the “Otabara tonalite” in its type locality yields the magmatic age of 285.4±1.9 Ma (MSWD = 0.72) and 278.8±2.0 Ma (MSWD = 0.92). Whole-rock chemical compositions from the “Otabara tonalite” show a volcanic arc signature. LA-ICP-MS detrital zircon U-Pb dating of psammitic schist from the Tsuno Group yields the approximated maximum depositional age of 242 Ma with the single peak cluster at ca. 262 Ma and the conspicuous lack of Precambrian zircons. The depositional age of psammitic schist is younger than the crystallization age of the “Otabara tonalite.” Possible origins of the “Otabara tonalite” are considered as 1) an autochthonous body and a member of the Suo Metamorphic Complex, or 2) an exotic block derived from another geotectonic unit. In the case of the possibility 2), the arc-type granitoid in the Southern Maizuru Belt is the potential origin of the “Otabara tonalite” as they share similar ages and geochemical compositions.
- 著者
- Hideharu Hagiya Hiroko Ogawa Yusuke Takahashi Kosuke Kimura Kan Hasegawa Fumio Otsuka
- 出版者
- 一般社団法人 日本内科学会
- 雑誌
- Internal Medicine (ISSN:09182918)
- 巻号頁・発行日
- vol.54, no.21, pp.2775-2777, 2015 (Released:2015-11-01)
- 参考文献数
- 13
- 被引用文献数
- 9
We herein present a rare case of Actinomyces turicensis bacteremia that was caused by pyometra. The patient was successfully treated with transvaginal drainage and antibiotic therapy. A literature review in MEDLINE showed that there have been only 8 previously reported cases of A. turicensis bacteremia. This infection frequently occurs in patients with visceral abscesses, and blood culture examinations usually reveal a polymicrobial pattern. However, the prognosis of such patients has been reported to generally be benign. Due to difficulties in performing bacterial identification and the wide-spectrum clinical pictures associated with this bacteremia, no comprehensive understanding of the clinical features of each Actinomyces species has yet been established.