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Start Over Author "A. Akaishi" Publisher elsevier b.v.
313 results on '"A. Akaishi"'

11. Retrospective details of false-positive and false-negative results in non-invasive prenatal testing for fetal trisomies 21, 18 and 13

Author

Suzumori, Nobuhiro, Sekizawa, Akihiko, Takeda, Eri, Samura, Osamu, Sasaki, Aiko, Akaishi, Rina, Wada, Seiji, Hamanoue, Haruka, Hirahara, Fumiki, Sawai, Hideaki, Nakamura, Hiroaki, Yamada, Takahiro, Miura, Kiyonori, Masuzaki, Hideaki, Nakayama, Setsuko, Kamei, Yoshimasa, Namba, Akira, Murotsuki, Jun, Yamaguchi, Masayuki, Tairaku, Shinya, Maeda, Kazuhisa, Kaji, Takashi, Okamoto, Yoko, Endo, Masayuki, Ogawa, Masaki, Kasai, Yasuyo, Ichizuka, Kiyotake, Yamada, Naoki, Ida, Akinori, Miharu, Norio, Kawaguchi, Satoshi, Hasuo, Yasuyuki, Okazaki, Tetsuya, Ichikawa, Mayuko, Izumi, Shunichiro, Kuno, Naohiko, Yotsumoto, Junko, Nishiyama, Miyuki, Shirato, Nahoko, Hirose, Tatsuko, and Sago, Haruhiko

Published
2021
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21. Fetal cell-free DNA fraction in maternal plasma for the prediction of hypertensive disorders of pregnancy

Author

Suzumori, Nobuhiro, Sekizawa, Akihiko, Ebara, Takeshi, Samura, Osamu, Sasaki, Aiko, Akaishi, Rina, Wada, Seiji, Hamanoue, Haruka, Hirahara, Fumiki, Izumi, Haruna, Sawai, Hideaki, Nakamura, Hiroaki, Yamada, Takahiro, Miura, Kiyonori, Masuzaki, Hideaki, Yamashita, Takahiro, Okai, Takashi, Kamei, Yoshimasa, Namba, Akira, Murotsuki, Jun, Tanemoto, Tomohiro, Fukushima, Akimune, Haino, Kazufumi, Tairaku, Shinya, Matsubara, Keiichi, Maeda, Kazutoshi, Kaji, Takashi, Ogawa, Masanobu, Osada, Hisao, Nishizawa, Haruki, Okamoto, Yoko, Kanagawa, Takeshi, Kakigano, Aiko, Kitagawa, Michihiro, Ogawa, Masaki, Izumi, Shunichiro, Katagiri, Yukiko, Takeshita, Naoki, Kasai, Yasuyo, Naruse, Katsuhiko, Neki, Reiko, Masuyama, Hisashi, Hyodo, Maki, Kawano, Yukie, Ohba, Takashi, Ichizuka, Kiyotake, Nagamatsu, Takeshi, Watanabe, Atsushi, Shirato, Nahoko, Yotsumoto, Junko, Nishiyama, Miyuki, Hirose, Tatsuko, and Sago, Haruhiko

Published
2018
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34. In-situ TiO2-Coated CsPbBr3 quantum dots with enhanced stability, photoluminescence quantum yields, and charge transport properties.

Author

Nuket, Parina, Akaishi, Yuji, Yoshimura, Gimpei, Kida, Tetsuya, and Vas-Umnuay, Paravee

Subjects
*QUANTUM dots, *PHOTOLUMINESCENCE, *TITANIUM dioxide, *PHOTOELECTROCHEMICAL cells, *HEAT treatment, *OPTICAL properties
Abstract

Cesium lead bromide quantum dots (CsPbBr 3 QDs) have suffered from instability against the environmental factors in broad applications due to the inherent perovskite properties. Here, TiO 2 coating on CsPbBr 3 QDs by ex-situ and in-situ methods was performed to prevent the agglomeration of the nanocrystals and to improve the stability of CsPbBr 3 QDs without heat treatment at high temperature. By focusing on the in-situ coating method, this work also reported the effects of injection temperature of titanium precursor into the QDs solution from 25 °C to 170 °C on the morphological, structural, and optical properties of the obtained TiO 2 -coated CsPbBr 3 QDs. The in-situ coated samples were non-agglomerated and remained the original shape and crystal structure of CsPbBr 3 QDs, whereas the ex-situ coated samples were completely agglomerated. The in-situ samples exhibited a significant stability improvement against toluene, ultrasonication treatment in water, and light illumination (all with the photoluminescence intensity greater than 50%). Furthermore, the in-situ TiO 2 -coated CsPbBr 3 QDs were proved to use as a good charge transport material in the photoelectrochemical cell. The results demonstrated the remarkable enhancement of photocurrent, owing to a suitable alignment of energy levels of TiO 2 and CsPbBr 3 and a stable structure of QDs, when compared to that of the as-synthesized CsPbBr 3 QDs. The present study provides a new perspective to utilize stable TiO 2 -coated CsPbBr 3 QDs in various photoelectrochemical applications. [Display omitted] [ABSTRACT FROM AUTHOR]

Published
2022
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39. Relapse-Independent disease activity in neuromyelitis optica spectrum disorder: A systematic review.

Author

Etemadifar, Masoud, Alaei, Seyyed-Ali, Akaishi, Tetsuya, Salari, Mehri, Norouzi, Mahdi, Samadzadeh, Sara, and Paul, Friedemann

Abstract

• Findings from MRI, OCT, fluid analysis, and biopsy support the presence of RIDA in NMOSD. • Retinal abnormalities stand as the most significant finding in RIDA. • The review suggests astrocytopathy and Müller cell dysfunction as underlying mechanisms for RIDA. • Our findings in defining relapse-independent NMOSD disease activity call for a paradigm shift in understanding and managing NMOSD. Neuromyelitis Optica Spectrum Disorders (NMOSD) is a neuroinflammatory condition characterized by optic neuritis and transverse myelitis. While the current approach to NMOSD focuses on relapse-associated worsening (RAW), recent evidence indicates Relapse-Independent Disease Activity (RIDA) in patients. Databases including Embase, PubMed, Scopus, and Web of Sciences were systematically searched up to December 2023. No restrictions were applied. Inclusion criteria focused on studies reporting evidence of RIDA in NMOSD patients. Data extraction involved details such as study title, author, participant characteristics, treatment, evaluation methods, positive findings according to RIDA, and prevalence of findings in NMOSD patients. This study is conducted following the PRISMA guidelines with a registered protocol on PROSPERO (ID = CRD42023492352). Of 802 studies, 38 were included in the systematic review, covering 1881 NMOSD patients. AQP4-IGg status was positive in 90.6 % of the patients. Ocular findings indicative of RIDA were reported in 23 studies, including thinning of GCIPL, RNFL, GCC, and GCL layers, foveal and macular shape and volume abnormalities, vessel loss, and visual evoked potentials (VEPs) abnormalities. MRI findings supporting the RIDA were reported in 13 studies, including new lesion incidence and brain and spinal cord atrophy. Serum and CSF RIDA-supporting findings were reported in five studies, including elevation in sGFAP and sNFL. Biopsies and autopsies suggested inflammatory processes in relapse-free patients in 2 studies. The predominant manifestation of RIDA in NMOSD was identified in the visual system, suggesting the impaired retinal glial cells like Müller cells during the relapse-free period in NMOSD. Our systematic review provides valuable insights into RIDA in NMOSD. Establishing guidelines for the diagnosis and treatment of RIDA is crucial. Further studies are needed to provide robust evidence on RIDA in NMOSD patients. [ABSTRACT FROM AUTHOR]

Published
2024
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