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Your search keyword '"Yamauchi, Misa"' showing total 15 results
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15 results on '"Yamauchi, Misa"'

1. Stereospecific reduction of 2′S-configured strigolactones by cowpea OPR3 enzymes.

Author

Suzawa, Shota, Yamauchi, Misa, Homma, Masato, Yamauchi, Yasuo, Mizutani, Masaharu, Wakabayashi, Takatoshi, and Sugimoto, Yukihiro

Subjects
*RECOMBINANT proteins, *DOUBLE bonds, *STRIGOLACTONES, *STEREOSPECIFICITY, *STEREOISOMERS, *COWPEA
Abstract

Strigolactones (SLs), plant-derived apocarotenoids, serve dual roles as phytohormones and rhizosphere signaling molecules. While exogenous administration of SLs to plants aids in studying their functions, the metabolic destiny of these administered SLs remains poorly elucidated. Our previous research demonstrated that among synthetic SL GR24 stereoisomers administered to cowpea (Vigna unguiculata), 2′- epi -GR24 undergoes selective reduction at the C-3′,4′ double bond in its D-ring. In this investigation, we isolated proteins from cowpea roots based on SL reducing activity and identified 12-oxophytodienoate reductase 3 homologs (VuOPR3s) as contributors to this reduction. Enzymatic assays conducted with recombinant proteins revealed that VuOPR3s exhibited a preference for reducing activity toward 2′ S -configured SLs, including 2′- epi -GR24. This specificity for 2′ S -configured SLs was congruent with that observed for orobanchol produced by cowpea and its stereoisomers. These findings suggest that exogenously administered SLs undergo enzymatic stereoselective reduction, underscoring the importance of considering stereospecificity when interpreting data obtained from SL usage. [ABSTRACT FROM AUTHOR]

Published
2024
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7. Perinatal Management in a Pregnant Woman with Ureteropelvic Junction Obstruction: Case Report and Literature Review

Author

Tamura, Daisuke, primary, Narita, Shintaro, additional, Yamauchi, Misa, additional, Watanabe, Rina, additional, Yokoyama, Shota, additional, Kikuchi, Akane, additional, Shitara, Akihiro, additional, Chiba, Syuji, additional, Saito, Fumiko, additional, Sugita, Akihiro, additional, Sato, Kazunari, additional, and Karube, Akihiro, additional

Published
2022
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10. Risk factors of sudden death in the Japanese hot bath in the senior population.

Author

Chiba, Takashi, Yamauchi, Misa, Nishida, Naoki, Kaneko, Taeko, Yoshizaki, Katsuaki, and Yoshioka, Naofumi

Subjects
Risk factors (Health) -- Research -- Usage, Aging -- Research -- Usage, Physiological research -- Usage -- Research, Sudden death -- Causes of -- Research, Arrhythmia -- Research, Baths, Hot -- Research -- Usage, Winter -- Research -- Usage
Abstract

Abstract A series of experiments were carried out to clarify the cause of death and the risk factors related to sudden death in the Japanese senior population while bathing in [...]

Published
2005

11. A Case of Giant Prostate Carcinoma Effectively Treated with External-Beam Radiation Therapy

Author

Kanda, Sohei, Narita, Shintaro, Komine, Naoki, Kitajima, Seiichi, Yamauchi, Misa, Sugita, Akihiro, Saito, Yutaka, and Habuchi, Tomonori

Subjects
Radiation therapy, Gigantic tumor, 494.9, Castration resistant prostate cancer
Abstract

We present a case of gigantic prostate tumor in a patient with castration-resistant prostate cancer with successful local control by external-beam radiation therapy. A 71-year-old man was shown to have a prostate specific antigen (PSA)level of 24.5 ng/ml, Gleason 9, cT2N1M1a, prostate adenocarcinoma with an estimated prostate volume of 26.9 g. He achieved a PSA nadir at 4 months after the initial androgen deprivation therapy and was diagnosed with castration-resistant prostate cancer three years later. Eight months after the diagnosis of castration-resistant prostate cancer, he visited our hospital due to urinary retention. Abdominal computed tomography scan showed a gigantic prostatic mass occupying the whole pelvic cavity along with multiple lymph node, bone and liver metastases. The estimated volume of the prostate was 878 g. A tumor needle biopsy revealed a histological finding similar to the initial prostate biopsy which was adenocarcinoma with Gleason 9. He underwent external beam radiation therapy (60 Gy) to the prostate, which brought about excellent local control with a 96.7% shrinkage of tumor at 2 months after radiation therapy. He had no complaints of urinary symptoms and no need for urethral catheterization until he died of prostate cancer metastases.

Published
2016

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Author

Kanda, Sohei, Narita, Shintaro, Komine, Naoki, Kitajima, Seiichi, Yamauchi, Misa, Sugita, Akihiro, Saito, Yutaka, Habuchi, Tomonori, Kanda, Sohei, Narita, Shintaro, Komine, Naoki, Kitajima, Seiichi, Yamauchi, Misa, Sugita, Akihiro, Saito, Yutaka, and Habuchi, Tomonori

Abstract

We present a case of gigantic prostate tumor in a patient with castration-resistant prostate cancer with successful local control by external-beam radiation therapy. A 71-year-old man was shown to have a prostate specific antigen (PSA)level of 24.5 ng/ml, Gleason 9, cT2N1M1a, prostate adenocarcinoma with an estimated prostate volume of 26.9 g. He achieved a PSA nadir at 4 months after the initial androgen deprivation therapy and was diagnosed with castration-resistant prostate cancer three years later. Eight months after the diagnosis of castration-resistant prostate cancer, he visited our hospital due to urinary retention. Abdominal computed tomography scan showed a gigantic prostatic mass occupying the whole pelvic cavity along with multiple lymph node, bone and liver metastases. The estimated volume of the prostate was 878 g. A tumor needle biopsy revealed a histological finding similar to the initial prostate biopsy which was adenocarcinoma with Gleason 9. He underwent external beam radiation therapy (60 Gy) to the prostate, which brought about excellent local control with a 96.7% shrinkage of tumor at 2 months after radiation therapy. He had no complaints of urinary symptoms and no need for urethral catheterization until he died of prostate cancer metastases.

Published
2016

15. [A Case of Giant Prostate Carcinoma Effectively Treated with External-Beam Radiation Therapy].

Author

Kanda S, Narita S, Komine N, Kitajima S, Yamauchi M, Sugita A, Saito Y, and Habuchi T

Subjects
Adenocarcinoma complications, Adenocarcinoma diagnostic imaging, Aged, Biopsy, Needle, Humans, Male, Prostatic Neoplasms, Castration-Resistant complications, Prostatic Neoplasms, Castration-Resistant diagnostic imaging, Prostatic Neoplasms, Castration-Resistant pathology, Proton Therapy, Tomography, X-Ray Computed, Treatment Outcome, Urinary Retention etiology, Adenocarcinoma radiotherapy, Prostatic Neoplasms, Castration-Resistant radiotherapy
Abstract

We present a case of gigantic prostate tumor in a patient with castration-resistant prostate cancer with successful local control by external-beam radiation therapy. A 71-year-old man was shown to have a prostate specific antigen (PSA)level of 24.5 ng/ml, Gleason 9, cT2N1M1a, prostate adenocarcinoma with an estimated prostate volume of 26.9 g. He achieved a PSA nadir at 4 months after the initial androgen deprivation therapy and was diagnosed with castration-resistant prostate cancer three years later. Eight months after the diagnosis of castration-resistant prostate cancer, he visited our hospital due to urinary retention. Abdominal computed tomography scan showed a gigantic prostatic mass occupying the whole pelvic cavity along with multiple lymph node, bone and liver metastases. The estimated volume of the prostate was 878 g. A tumor needle biopsy revealed a histological finding similar to the initial prostate biopsy which was adenocarcinoma with Gleason 9. He underwent external beam radiation therapy (60 Gy) to the prostate, which brought about excellent local control with a 96.7% shrinkage of tumor at 2 months after radiation therapy. He had no complaints of urinary symptoms and no need for urethral catheterization until he died of prostate cancer metastases.

Published
2016
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