著者
Yukihiro Koretsune Takuma Etoh Yousuke Katsuda Tetsuro Suetsugu Kenshi Kumeda Ichiro Sakuma Kenichi Eshima Mitsuhiro Shibuya Shin-ichi Ando Naoto Yokota Shinya Goto Karen S. Pieper Jagan Allu Ajay K. Kakkar for the GARFIELD-AF Investigators
出版者
The Japanese Circulation Society
雑誌
Circulation Journal (ISSN:13469843)
巻号頁・発行日
pp.CJ-18-0655, (Released:2018-12-04)
参考文献数
20
被引用文献数
11

Background: Global Anticoagulant Registry in the FIELD-Atrial Fibrillation (GARFIELD-AF) is an ongoing prospective non-interventional study of stroke prevention in patients with newly diagnosed non-valvular AF (NAVF) that is being conducted in 35 countries. Methods and Results: A total of 52,081 patients with a new diagnosis of NVAF were enrolled prospectively in GARFIELD-AF. Of these, 4859 (9.3%) were recruited in Japan (2010–2016). In cohort 1 (2010–2011), few patients were on non-vitamin K antagonist oral anticoagulants (NOAC) globally. From cohort 2 onwards (2011–2016), however, there was a rapid increase in NOAC use around the globe, especially in Japan. By the last year of enrolment (2015–2016), 67.9% of patients in Japan and 43.1% of patients globally were on NOAC±antiplatelet therapy (AP). In Japan and globally, 17.0% and 12.2% of patients, respectively, did not receive stroke prevention treatment. Few patients in Japan (5.7%) received AP only. Compared with the other countries, the unadjusted rates of all-cause mortality and major bleeding were low, while rates of stroke/systemic embolism were similar after 1 year of follow-up. Conclusions: GARFIELD-AF continues to provide important information on the homogeneity and heterogeneity of baseline characteristics and treatment patterns in patients with newly diagnosed NVAF. This diversity reflects the differences in outcomes in Japan compared with the rest of the world.
著者
Yusuke KITAMURA Kotaro MISHIO Pelin ARSLAN Boui IKEDA Chiharu IMOTO Yousuke KATSUDA Toshihiro IHARA
出版者
The Japan Society for Analytical Chemistry
雑誌
Analytical Sciences (ISSN:09106340)
巻号頁・発行日
vol.36, no.8, pp.959-964, 2020-08-10 (Released:2020-08-10)
参考文献数
12
被引用文献数
6

Ferrocene (Fc) and β-cyclodextrin (βCyD) were modified at each end of stem-loop structured DNA as an electrochemical signal generator and its quencher, respectively, to give an electrochemical molecular beacon (eMB). A relatively high efficiency of signal quenching was achieved by an inclusion complex (βCyD ⊃ Fc) formation that was induced on the stem structure of the closed form (= stem-loop structure) of eMB. With the addition of target DNA, the structure of eMB opened to form a linear duplex, where the Fc dissociated from the βCyD to restore its intrinsic electrochemical signal. The signal contrast of the electric current for this off/on-type sensor was high, ca. 95. This technique did not require any modification of the electrode surface, and it realized the detection of the target nucleic acids in a homogeneous solution with a high sensitivity using high-performance liquid chromatography (HPLC) equipped with electrochemical detector.
著者
Yusuke KITAMURA Takaaki TANIGUCHI Miwako TSUTSUMI Leanddas NURDIWIJAYANTO Tomoya MATSUO Yousuke KATSUDA Toshihiro IHARA
出版者
The Japan Society for Analytical Chemistry
雑誌
Analytical Sciences (ISSN:09106340)
巻号頁・発行日
vol.36, no.4, pp.397-400, 2020-04-10 (Released:2020-04-10)
参考文献数
15
被引用文献数
1

A fluorescent dye-labeled DNA probe was adsorbed and quenched on the monolayer of RuO2 nanosheets. Significant fluorescent recovery was observed upon the addition of complementary DNA due to desorption of the probe from the surface of the RuO2 nanosheet through duplex formation. The efficiency of fluorescence recovery was higher than that for graphene oxide, which was known as a quencher-free platform for the detection of nucleic acids in a homogeneous solution.
著者
Yukihiro Koretsune Takuma Etoh Yousuke Katsuda Tetsuro Suetsugu Kenshi Kumeda Ichiro Sakuma Kenichi Eshima Mitsuhiro Shibuya Shin-ichi Ando Naoto Yokota Shinya Goto Karen S. Pieper Jagan Allu Ajay K. Kakkar for the GARFIELD-AF Investigators
出版者
The Japanese Circulation Society
雑誌
Circulation Journal (ISSN:13469843)
巻号頁・発行日
vol.83, no.1, pp.67-74, 2018-12-25 (Released:2018-12-25)
参考文献数
20
被引用文献数
11

Background: Global Anticoagulant Registry in the FIELD-Atrial Fibrillation (GARFIELD-AF) is an ongoing prospective non-interventional study of stroke prevention in patients with newly diagnosed non-valvular AF (NAVF) that is being conducted in 35 countries. Methods and Results: A total of 52,081 patients with a new diagnosis of NVAF were enrolled prospectively in GARFIELD-AF. Of these, 4859 (9.3%) were recruited in Japan (2010–2016). In cohort 1 (2010–2011), few patients were on non-vitamin K antagonist oral anticoagulants (NOAC) globally. From cohort 2 onwards (2011–2016), however, there was a rapid increase in NOAC use around the globe, especially in Japan. By the last year of enrolment (2015–2016), 67.9% of patients in Japan and 43.1% of patients globally were on NOAC±antiplatelet therapy (AP). In Japan and globally, 17.0% and 12.2% of patients, respectively, did not receive stroke prevention treatment. Few patients in Japan (5.7%) received AP only. Compared with the other countries, the unadjusted rates of all-cause mortality and major bleeding were low, while rates of stroke/systemic embolism were similar after 1 year of follow-up. Conclusions: GARFIELD-AF continues to provide important information on the homogeneity and heterogeneity of baseline characteristics and treatment patterns in patients with newly diagnosed NVAF. This diversity reflects the differences in outcomes in Japan compared with the rest of the world.