著者

Yu Ito

出版者

国立国会図書館

雑誌

National Diet Library newsletter (ISSN:13447238)

巻号頁・発行日

no.213, 2017-08

著者

YU ITO NORIO TANAKA

出版者

The Japanese Society for Plant Systematics

雑誌

Acta Phytotaxonomica et Geobotanica (ISSN:13467565)

巻号頁・発行日

vol.64, no.1, pp.15-28, 2013-06-29 (Released:2017-03-21)

参考文献数

51

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Hybridization is a common phenomenon in many plant genera, and among them is the world's largest aquatic genus, Potamogeton (Potamogetonaceae) with about 69 species and 50 hybrids reported. Here we provide genetic insights into Potamogeton hybrids from China, where ten or more putative hybrids exist, of which eight have been genetically confirmed. In the study presented here, we verified the hybrid status and inferred the origins of three Potamogeton hybrids using molecular phylogenetic analyses of plastid (chloroplast) trnT-trnF and nuclear ITS sequence data sets that include previously published and newly generated data. The hybrids identified were: 1) P. ×inbaensis, a known hybrid from Japan; 2) a hybrid between P. perfoliatus s.l. and P. wrightii, and 3) a hybrid between tetraploid maternal P. distinctus and diploid paternal P. octandrus. Potamogeton ×inbaensis is reported from China for the first time, whereas the latter two hybrids are new to science.

著者

Yu Ito Nobuyasu Awano Fumiya Uchiyama Minoru Inomata Naoyuki Kuse Mari Tone Kohei Takada Kazushi Fujimoto Yutaka Muto Shogo Sagisaka Kenro Maki Ryuta Yamashita Akinori Harada Jun-ichi Nishimura Munehiro Hayashi Takehiro Izumo

出版者

The Japanese Society of Internal Medicine

雑誌

Internal Medicine (ISSN:09182918)

巻号頁・発行日

pp.7422-21, (Released:2021-08-24)

参考文献数

20

被引用文献数

1 4

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In hospitalized coronavirus disease 2019 (COVID-19) patients, anticoagulation therapy is administered to prevent thrombosis. However, anticoagulation sometimes causes bleeding complications. We herein report two Japanese cases of severe COVID-19 in which spontaneous muscle hematomas (SMH) developed under therapeutic anticoagulation with unfractionated heparin. Although the activated partial prothrombin time was within the optimal range, contrast-enhanced computed tomography (CECT) revealed SMH in the bilateral iliopsoas muscles in both cases, which required emergent transcatheter embolization. Close monitoring of the coagulation system and the early diagnosis of bleeding complications through CECT are needed in severe COVID-19 patients treated with anticoagulants.