1
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Komatsu K, Sayama T, Yamashita KI, Takada Y. Mutant Tof11 alleles are highly accumulated in early planting-adaptable Japanese summer type soybeans. Breed Sci 2023; 73:322-331. [PMID: 37840974 PMCID: PMC10570879 DOI: 10.1270/jsbbs.22098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 04/12/2023] [Indexed: 10/17/2023]
Abstract
To avoid crop failure because of climate change, soybean (Glycine max (L.) Merrill) cultivars adaptable to early planting are required in western Japan. Because current Japanese cultivars may not be adaptable, genetic resources with high early-planting adaptability, and their genetic information must be developed. In the present study, summer type (ST) soybeans developed for early planting were used as plant materials. We examined their phenological characteristics and short reproductive period as an indicator of early planting adaptability and performed genetic studies. Biparental quantitative trait loci (QTL) analysis of a representative ST cultivar revealed a principal QTL for the reproductive period duration on chromosome 11. The results of resequencing analysis suggested that circadian clock-related Tof11 (soybean orthologue of PRR3) is a candidate QTL. Additionally, all 25 early planting-adaptable germplasms evaluated in this study possessed mutant alleles in Tof11, whereas 15 conventional cultivars only had wild-type alleles. These results suggest that mutant alleles in Tof11 are important genetic factors in the high adaptability to early planting of these soybeans, and thus, these alleles were acquired and accumulated in the ST soybean population.
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Affiliation(s)
- Kunihiko Komatsu
- Western Region Agricultural Research Center (Kinki, Chugoku and Shikoku Regions), National Agriculture and Food Research Organization, 1-3-1 Sen-yu, Zentsuji, Kagawa 765-8505, Japan
| | - Takashi Sayama
- Western Region Agricultural Research Center (Kinki, Chugoku and Shikoku Regions), National Agriculture and Food Research Organization, 1-3-1 Sen-yu, Zentsuji, Kagawa 765-8505, Japan
| | - Ken-ichiro Yamashita
- Western Region Agricultural Research Center (Kinki, Chugoku and Shikoku Regions), National Agriculture and Food Research Organization, 1-3-1 Sen-yu, Zentsuji, Kagawa 765-8505, Japan
| | - Yoshitake Takada
- Western Region Agricultural Research Center (Kinki, Chugoku and Shikoku Regions), National Agriculture and Food Research Organization, 1-3-1 Sen-yu, Zentsuji, Kagawa 765-8505, Japan
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2
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Tokumitsu Y, Kozu T, Yamatani H, Ito T, Nakano H, Hase A, Sasada H, Takada Y, Kaga A, Ishimoto M, Kusaba M, Nakashima T, Abe J, Yamada T. Functional Divergence of G and Its Homologous Genes for Green Pigmentation in Soybean Seeds. Front Plant Sci 2022; 12:796981. [PMID: 35069653 PMCID: PMC8766641 DOI: 10.3389/fpls.2021.796981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 12/13/2021] [Indexed: 06/14/2023]
Abstract
The degradation of chlorophyll in mature soybean seeds is closely related to the development of their yellow color. In this study, we examined G, its homologue G-like (GL), and their mutant alleles and investigated the relationship between these genes and chlorophyll accumulation in the seed coats of mature seeds. Transient expression of G and GL proteins fused with green fluorescent protein revealed that both were localized in plastids. Overexpression of G resulted in the accumulation of chlorophyll in the seed coats and cotyledons of mature seeds, indicating that high expression levels of G result in chlorophyll accumulation that exceeds its metabolism in the seeds of yellow soybean. Analysis of near isogenic lines at the G locus demonstrated a significant difference in the chlorophyll content of the seed coats and cotyledons of mature seeds when G and mutant g alleles were expressed in the d1d2 stay-green genetic background, indicating that the G protein might repress the SGR-independent degradation of chlorophyll. We examined the distribution of mutant alleles at the G and GL loci among cultivated and wild soybean germplasm. The g allele was widely distributed in cultivated soybean germplasm, except for green seed coat soybean lines, all of which contained the G allele. The gl alleles were much fewer in number than the g alleles and were mainly distributed in the genetic resources of cultivated soybean from Japan. None of the landraces and breeding lines investigated in this study were observed to contain both the g and gl alleles. Therefore, in conclusion, the mutation of the G locus alone is essential for establishing yellow soybeans, which are major current soybean breeding lines.
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Affiliation(s)
- Yusuke Tokumitsu
- Graduate School of Agriculture, Hokkaido University, Sapporo, Japan
| | - Takuto Kozu
- Graduate School of Agriculture, Hokkaido University, Sapporo, Japan
| | - Hiroshi Yamatani
- Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba, Japan
| | - Takeshi Ito
- Graduate School of Science, Hiroshima University, Higashihiroshima, Japan
| | - Haruna Nakano
- Faculty of Agriculture, Hokkaido University, Sapporo, Japan
| | - Ayaka Hase
- Faculty of Agriculture, Hokkaido University, Sapporo, Japan
| | - Hiroki Sasada
- Faculty of Agriculture, Hokkaido University, Sapporo, Japan
| | - Yoshitake Takada
- Western Region Agricultural Research Center, National Agriculture and Food Research Organization, Fukuyama, Japan
| | - Akito Kaga
- Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba, Japan
| | - Masao Ishimoto
- Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba, Japan
| | - Makoto Kusaba
- Graduate School of Science, Hiroshima University, Higashihiroshima, Japan
| | - Taiken Nakashima
- Graduate School of Agriculture, Hokkaido University, Sapporo, Japan
| | - Jun Abe
- Graduate School of Agriculture, Hokkaido University, Sapporo, Japan
| | - Tetsuya Yamada
- Graduate School of Agriculture, Hokkaido University, Sapporo, Japan
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3
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Takagi M, Hasegawa Y, Tateoka K, Takada Y, Hareyama M. Dosimetric Study of Proton Therapy Using Scanning Method for Localized Prostate Cancer Patients in Comparison With Wobbler Method and Volumetric-Modulated Arc Therapy. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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4
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Takada Y, Uchida M, Tezuka N, Tsujino M, Sawayama S, Kurogi H, Ishihi Y, Watanabe S. Spatial hierarchical partitioning of macrobenthic diversity of clam (
Ruditapes
) fishing grounds over a large geographical range of Japan. Ecol Res 2020. [DOI: 10.1111/1440-1703.12172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yoshitake Takada
- Japan Sea National Fisheries Research Institute Fisheries Research and Education Agency Tokyo Japan
| | - Motoharu Uchida
- National Research Institute of Fisheries and Environment of Inland Sea Fisheries Research and Education Agency Hiroshima Japan
| | - Naoaki Tezuka
- National Research Institute of Fisheries and Environment of Inland Sea Fisheries Research and Education Agency Hiroshima Japan
| | - Mutsumi Tsujino
- National Research Institute of Fisheries and Environment of Inland Sea Fisheries Research and Education Agency Hiroshima Japan
| | - Shuhei Sawayama
- National Research Institute of Fisheries Science Fisheries Research and Education Agency Yokohama Japan
| | - Hiroaki Kurogi
- National Research Institute of Fisheries Science Fisheries Research and Education Agency Yokohama Japan
| | - Yuka Ishihi
- National Research Institute of Aquaculture Fisheries Research and Education Agency Minamiise Japan
| | - Satoshi Watanabe
- National Research Institute of Aquaculture Fisheries Research and Education Agency Minamiise Japan
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5
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Yang S, Sassa S, Takada Y. Cross‐shore distributions of peracarid crustaceans after changes in beach morphology: The importance of suction as a key geoenvironmental variable. Ecol Res 2020. [DOI: 10.1111/1440-1703.12151] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Soonbo Yang
- Port and Airport Research Institute, National Institute of Maritime, Port and Aviation Technology Yokosuka Japan
| | - Shinji Sassa
- Port and Airport Research Institute, National Institute of Maritime, Port and Aviation Technology Yokosuka Japan
| | - Yoshitake Takada
- Japan Sea National Fisheries Research Institute, Fisheries Research and Education Agency Niigata Japan
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6
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Son NV, Chambers JK, Dung LT, Kishimoto TE, Nishimura M, Kita C, Takada Y, Miwa Y, Nakayama H, Uchida K. Histological and Immunohistochemical Features of Normal Histiocytes and Langerhans Cells, and Histiocytic Sarcomas in Four-Toed Hedgehogs (Atelerix albiventris). J Comp Pathol 2020; 178:32-40. [PMID: 32800106 DOI: 10.1016/j.jcpa.2020.06.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 05/22/2020] [Accepted: 06/11/2020] [Indexed: 11/29/2022]
Abstract
Histiocytic sarcoma (HS) is a haematopoietic tumour of histiocyte origin that has been sporadically reported in four-toed hedgehogs (Atelerix albiventris). The present study aimed to investigate clinical, gross, histopathological and immunohistochemical features of HS in eight hedgehogs. Histological and immunohistochemical features of normal histiocytes and Langerhans cells (LCs) of hedgehogs were also investigated. HLA-DR-, Iba-1- and E-cadherin-positive LCs were observed in the epidermis, while Iba-1- and CD204-positive histiocytes were detected in the lymph nodes and spleen of normal hedgehogs. Localized HS (six cases) developed in the skin and spleen, while disseminated HS (two cases) occurred in the intestine. Tumour cells of disseminated HS were also distributed within the mesenteric lymph nodes, liver, kidney, spleen, lung and adrenal glands. Tumour cells of both localized and disseminated HS were composed of histiocytic cells, spindle to pleomorphic cells, multinucleated giant cells and erythrophagocytic cells. Most tumour cells were immunopositive for Iba-1, CD204 and lysozyme. A small number of tumour cells were positive for E-cadherin and CD208, and the tumour cells in one case were positive for HLA-DR. These results suggest that the tumour cells have variable features of histiocyte origin, including dendritic cells, LCs and macrophages. The behaviour of HS in the hedgehog was very aggressive, and 50% of cases died within 90 days of resection. The present study also highlighted the tendency for local tumour recurrence in localized cutaneous HS cases, suggesting a requirement for a long-term follow-up after excision.
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Affiliation(s)
- N V Son
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan; Department of Veterinary Pathology, Faculty of Veterinary Medicine, Vietnam National University of Agriculture, Hanoi, Viet Nam
| | - J K Chambers
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
| | - L T Dung
- Division of Infectious Control and Disease Prevention, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - T E Kishimoto
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - M Nishimura
- Miwa Exotic Animal Hospital, Toshima-ku, Tokyo, Japan
| | - C Kita
- Shikoku Cytopathological Laboratory, Takamatsu, Kagawa, Japan
| | - Y Takada
- Ashil Animal Hospital, Takamatsu, Kagawa, Japan
| | - Y Miwa
- Miwa Exotic Animal Hospital, Toshima-ku, Tokyo, Japan
| | - H Nakayama
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - K Uchida
- Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
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7
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Masunari N, Sekiné K, Kang BJ, Takada Y, Hatakeyama M, Saigusa M. Ontogeny of Cheliped Laterality and Mechanisms of Reversal of Handedness in the Durophagous Gazami Crab, Portunus trituberculatus. Biol Bull 2020; 238:25-40. [PMID: 32163729 DOI: 10.1086/707648] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The paired claws in Gazami crabs, Portunus trituberculatus, are bilaterally asymmetrical, and asymmetry is remarkable on the distal two segments of the first pereiopod, that is, the dactylus and propodus. Shells are exclusively cracked by use of the right chela, representing handedness. In Gazami crabs, handedness is reversed after autotomy of the right chela. Our study focused on the ontogeny of handedness and the mechanism of handedness reversal. Morphologically, asymmetry was first detected in megalopa larvae where the right propodus was significantly larger than the left, as was the canine at the base of the right dactylus. Presumably, the rate of chelagenesis differed between the left and right chelae. With these morphological features, the right chela functioned as a crusher. The crusher exerted a closing force two to three times that of the cutter. With loss of the right crusher, the left chela was bigger than the regenerated right chela and was converted to the crusher. In contrast, the performance of the regenerated right chela deteriorated compared to that of the original right crusher, and exertion of full closing force was inhibited by the more active left chela. Furthermore, crabs with two crusher chelae did not clearly show handedness. A decrease in size and performance of the regenerated right chela can be explained by a default program hypothesis. In conclusion, a difference in the chelagenesis rate results in bilateral asymmetry of the two chelipeds, and then handedness is generated by neural regulation in the thoracic ganglion innervating these claws. Since handedness is reversed after autotomy, the thoracic ganglion would not be lateralized in Gazami crabs. A default program hypothesis is proposed to explain the ontogeny of bilateral chela asymmetry and handedness reversal.
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8
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Saruta M, Takada Y, Yamashita KI, Sayama T, Komatsu K. A QTL associated with high seed coat cracking rate of a leading Japanese soybean variety. Breed Sci 2019; 69:665-671. [PMID: 31988631 PMCID: PMC6977449 DOI: 10.1270/jsbbs.19094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 08/22/2019] [Indexed: 06/01/2023]
Abstract
Seed coat cracking in soybeans [Glycine max (L). Merr.] leads to commercial and agronomic losses. The Japanese elite soybean cultivar 'Fukuyutaka' is often used as a parent for breeding, but its high rate of seed coat cracking is an obstacle to its further use in breeding programs. To establish a DNA marker-assisted selection system for seed coat cracking, genetic factors related to high rates of seed coat cracking were surveyed, and a quantitative trait locus (QTL) with a stable effect on seed coat cracking in both years of a two-year replication experiment was detected on chromosome 20. Comparison of a set of near-isogenic lines (NILs) around this locus verified that the presence of the 'Fukuyutaka' allele significantly increased seed coat cracking in the kernel. The locus is located in a genomic region spanning 3.2 Mb. Marker-assisted selection for the locus will improve the selection efficiency of 'Fukuyutaka'-derived breeding populations.
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Affiliation(s)
- Masayasu Saruta
- Western Region Agricultural Research Center Shikoku Research Station, National Agriculture and Food Research Organization,
1-3-1 Sen-yu, Zentsuji, Kagawa 765-8505,
Japan
| | - Yoshitake Takada
- Western Region Agricultural Research Center Shikoku Research Station, National Agriculture and Food Research Organization,
1-3-1 Sen-yu, Zentsuji, Kagawa 765-8505,
Japan
| | - Ken-ichiro Yamashita
- Western Region Agricultural Research Center Shikoku Research Station, National Agriculture and Food Research Organization,
1-3-1 Sen-yu, Zentsuji, Kagawa 765-8505,
Japan
| | - Takashi Sayama
- Western Region Agricultural Research Center Shikoku Research Station, National Agriculture and Food Research Organization,
1-3-1 Sen-yu, Zentsuji, Kagawa 765-8505,
Japan
| | - Kunihiko Komatsu
- Western Region Agricultural Research Center Shikoku Research Station, National Agriculture and Food Research Organization,
1-3-1 Sen-yu, Zentsuji, Kagawa 765-8505,
Japan
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9
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Sakuma K, Ishida R, Kodama T, Takada Y. Reconstructing the population history of the sandy beach amphipod Haustorioides japonicus using the calibration of demographic transition (CDT) approach. PLoS One 2019; 14:e0223624. [PMID: 31596891 PMCID: PMC6785125 DOI: 10.1371/journal.pone.0223624] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 09/24/2019] [Indexed: 11/19/2022] Open
Abstract
Calibration of the molecular rate is one of the major challenges in marine population genetics. Although the use of an appropriate evolutionary rate is crucial in exploring population histories, calibration of the rate is always difficult because fossil records and geological events are rarely applicable for rate calibration. The acceleration of the evolutionary rate for recent coalescent events (or more simply, the time dependency of the molecular clock) is also a problem that can lead to overestimation of population parameters. Calibration of demographic transition (CDT) is a rate calibration technique that assumes a post-glacial demographic expansion, representing one of the most promising approaches for dealing with these potential problems in the rate calibration. Here, we demonstrate the importance of using an appropriate evolutionary rate, and the power of CDT, by using populations of the sandy beach amphipod Haustorioides japonicus along the Japanese coast of the northwestern Pacific Ocean. Analysis of mitochondrial sequences found that the most peripheral population in the Pacific coast of northeastern Honshu Island (Tohoku region) is genetically distinct from the other northwestern Pacific populations. By using the two-epoch demographic model and rate of temperature change, the evolutionary rate was modeled as a log-normal distribution with a median rate of 2.2%/My. The split-time of the Tohoku population was subsequently estimated to be during the previous interglacial period by using the rate distribution, which enables us to infer potential causes of the divergence between local populations along the continuous Pacific coast of Japan.
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Affiliation(s)
- Kay Sakuma
- Japan Sea National Fisheries Research Institute, Fisheries Research and Education Agency, Niigata, Japan
- * E-mail:
| | - Risa Ishida
- Japan Sea National Fisheries Research Institute, Fisheries Research and Education Agency, Niigata, Japan
| | - Taketoshi Kodama
- Japan Sea National Fisheries Research Institute, Fisheries Research and Education Agency, Niigata, Japan
| | - Yoshitake Takada
- Japan Sea National Fisheries Research Institute, Fisheries Research and Education Agency, Niigata, Japan
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10
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Nakai E, Hamatani Y, Miyata M, Nakamura E, Kawano Y, Takada Y, Anchi Y, Funabashi S, Hirayama A, Kuroda K, Amano M, Sugano Y, Anzai T, Izumi C. P767Survey of palliative sedation at the end-of-life in terminally ill heart failure patients - a five year experience in national cardiovascular center. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Palliative sedation is a therapeutic option when symptom relief is difficult to achieve at the end-of-life. However, little is known regarding palliative sedation in terminally ill heart failure (HF) patients.
Purpose
To survey the practice of palliative sedation in terminally ill HF patients at a tertiary referral cardiovascular center, and to investigate the efficacy and safety of sedative agents in HF patients.
Methods
We retrospectively reviewed consecutive patients who were referred to palliative care team at our institution between September 2013 and August 2018. Patients who were hospitalized for HF and died during hospitalization despite optimal medical therapy were selected and defined as terminally ill HF. We investigated the practice of palliative sedation in terminally ill HF patients and analysed the vital signs and sedation scale before starting sedative agents and about 1 hour afterward.
Results
Among 95 terminally ill HF patients, 37 were prescribed palliative sedation at the end-of-life (Picture). Of 37 patients (mean age: 70 years, median B-type natriuretic peptide: 1018 pg/ml, median creatinine: 3.0 mg/dl, intravenous inotrope: 81%), 25 were prescribed dexmedetomidine, and 12 were prescribed midazolam as first agent for sedation. Patient's backgrounds were comparable between the two groups. Richmond Agitation-Sedation Scale was significantly reduced (P<0.01), whereas blood pressure and heart rate were not altered after treatments in both groups. In midazolam group, significant decreases were noted regarding respiratory rate (P=0.01) and oxygen saturation (P=0.02); however, these parameters were not changed in dexmedetomidine group (Table).
Table 1. Vital signs and sedation scale Dexmedetomidine group (n=25) Midazolam group (n=12) Baseline After P value Baseline After P value Richmond Agitation-Sedation Scale 1 (0, 1) −1 (−2, 0) <0.01 1 (0, 1) −2 (−3, −1) <0.01 Vital signs Systolic blood pressure (mmHg) 90±15 89±16 0.51 89±21 84±23 0.33 Diastolic blood pressure (mmHg) 52±13 54±11 0.34 60±14 56±23 0.48 Heart rate (beats per minute) 95±20 91±22 0.17 90±21 90±19 0.70 Respiratory rate (breaths per minute) 22±5 20±5 0.24 21±5 17±2 0.01 Oxygen saturation (%) 97±3 96±6 0.59 96±5 94±5 0.02
Picture. Study flowchart
Conclusions
Dexmedetomidine and midazolam were commonly used in real-word practice for HF patients at the end-of-life. Although impact on respiratory system differed by treatments, both agents could be prescribed effectively and safely in terminally ill HF patients.
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Affiliation(s)
- E Nakai
- National Cerebral and Cardiovascular Center, Suita, Japan
| | - Y Hamatani
- National Cerebral and Cardiovascular Center, Suita, Japan
| | - M Miyata
- National Cerebral and Cardiovascular Center, Suita, Japan
| | - E Nakamura
- National Cerebral and Cardiovascular Center, Suita, Japan
| | - Y Kawano
- National Cerebral and Cardiovascular Center, Suita, Japan
| | - Y Takada
- National Cerebral and Cardiovascular Center, Suita, Japan
| | - Y Anchi
- National Cerebral and Cardiovascular Center, Suita, Japan
| | - S Funabashi
- National Cerebral and Cardiovascular Center, Suita, Japan
| | - A Hirayama
- National Cerebral and Cardiovascular Center, Suita, Japan
| | - K Kuroda
- National Cerebral and Cardiovascular Center, Suita, Japan
| | - M Amano
- National Cerebral and Cardiovascular Center, Suita, Japan
| | - Y Sugano
- National Cerebral and Cardiovascular Center, Suita, Japan
| | - T Anzai
- Hokkaido University Graduate School of Medicine, Cardiovascular Medicine, Hokkaido, Japan
| | - C Izumi
- National Cerebral and Cardiovascular Center, Suita, Japan
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11
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Sakamoto K, Takai A, Ueno Y, Inoue H, Ogawa K, Takada Y. Scoring System to Predict pt2 in Gallbladder Cancer Based on Carcinoembryonic Antigen and Tumor Diameter. Scand J Surg 2019; 109:301-308. [PMID: 31354079 DOI: 10.1177/1457496919866016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND AND AIMS T2 gallbladder cancer requires lymph node dissection for curative resection, whereas simple cholecystectomy is adequate to treat T1 gallbladder cancer. Hence, this study aimed to develop an accurate scoring system to preoperatively predict pT2 in gallbladder cancer. MATERIAL AND METHODS We retrospectively assessed data from 57 patients with suspected gallbladder cancer who underwent curative resection between September 2003 and May 2017. Six with apparent invasion of adjacent organs on preoperative images were excluded. We evaluated preoperative computed tomography, magnetic resonance and endoscopic ultrasonographic images, blood biochemistry, and the maximum standard uptake value in fluorodeoxyglucose-positron emission tomography images. We analyzed whether correlations between preoperative findings and the depth of tumor invasion could predict pT2. RESULTS The pathological diagnosis was gallbladder cancer in 30 (58.8%) patients, of whom 21 (69.9%) had pT2 or worse. Multivariate analyses selected carcinoembryonic antigen and tumor diameter as independent predictors of pT2 or worse (odds ratios = 1.741 and 1.098, respectively; 95% confidence intervals = 1.004-3.020 and 1.008-1.197, respectively). A regression formula was created using carcinoembryonic antigen and tumor diameter to calculate pT2 predictive scores. The area under the receiver operating characteristics curve of the pT2 predictive score was 0.873. CONCLUSION We created a scoring system to predict pT2 in gallbladder cancer using carcinoembryonic antigen and tumor diameter. The present findings suggested that carcinoembryonic antigen is important for the preoperative evaluation of gallbladder cancer.
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Affiliation(s)
- K Sakamoto
- Department of Surgery, Ehime University Hospital, Toon, Japan
| | - A Takai
- Department of Surgery, Ehime University Hospital, Toon, Japan
| | - Y Ueno
- Department of Surgery, Ehime University Hospital, Toon, Japan
| | - H Inoue
- Department of Surgery, Ehime University Hospital, Toon, Japan
| | - K Ogawa
- Department of Surgery, Ehime University Hospital, Toon, Japan
| | - Y Takada
- Department of Surgery, Ehime University Hospital, Toon, Japan
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12
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Takagi K, Yano R, Tochigi S, Fujisawa Y, Tsuchinaga H, Takahashi Y, Takada Y, Kaga A, Anai T, Tsukamoto C, Seki H, Muranaka T, Ishimoto M. Genetic and functional characterization of Sg-4 glycosyltransferase involved in the formation of sugar chain structure at the C-3 position of soybean saponins. Phytochemistry 2018; 156:96-105. [PMID: 30261341 DOI: 10.1016/j.phytochem.2018.09.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 08/28/2018] [Accepted: 09/11/2018] [Indexed: 06/08/2023]
Abstract
Triterpenoid saponins are specialized metabolites, which are abundant in soybean seeds. They have a wide variety of effects on human health and physiology. The composition of sugar chain attached to the aglycone moiety of saponins can be controlled by genetic loci, such as Sg-1, 3, and 4. Among these, the homozygous recessive sg-4 impairs the accumulation of saponins that have an arabinose moiety at the second position of the C-3 sugar chain (i.e., saponins Ad and βa) in the hypocotyls. In this study, we found that sg-4 cultivars are disabled in Glyma.01G046300 expression in hypocotyls. This gene encodes a putative glycosyltransferase (UGT73P10) and is a homolog of GmSGT2 (UGT73P2) whose recombinant protein has been previously shown, in vitro, to conjugate the second galactose moiety at the C-3 position of soyasapogenol B monoglucuronide (SBMG). The sg-4 phenotype (absence of saponins Ad and βa in hypocotyls) was restored by introducing the Glyma.01G046300 genomic DNA fragment that was obtained from the Sg-4 cultivar 'Ibarakimame 7'. Although Glyma.01G046300 is expressed in the cotyledons even in the sg-4 cultivars such as 'Enrei', the induced premature stop codon mutation (W244*) resulted in impaired accumulation of saponin βa in this tissue also in the 'Enrei' genetic background. Furthermore, the recombinant Glyma.01G046300 protein was shown to conjugate the second Ara moiety at the C-3 position of SBMG using UDP-Ara as a sugar donor. These results demonstrate that Sg-4 is responsible for conjugation of the second Ara moiety at the C-3 position of soybean saponins.
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Affiliation(s)
- Kyoko Takagi
- National Institute of Agrobiological Sciences, Tsukuba, Ibaraki, 305-8602, Japan
| | - Ryoichi Yano
- National Institute of Agrobiological Sciences, Tsukuba, Ibaraki, 305-8602, Japan; Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8572, Japan
| | - Saeko Tochigi
- National Institute of Agrobiological Sciences, Tsukuba, Ibaraki, 305-8602, Japan
| | - Yukiko Fujisawa
- National Institute of Agrobiological Sciences, Tsukuba, Ibaraki, 305-8602, Japan; Institute of Crop Science, NARO, Tsukuba, Ibaraki, 305-8518, Japan
| | - Hiroki Tsuchinaga
- Department of Biotechnology, Graduate School of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Yuya Takahashi
- Graduate School of Agriculture, Iwate University, Morioka, Iwate, 020-8550, Japan
| | - Yoshitake Takada
- Western Region Agricultural Research Center, NARO, Zentsuji, Kagawa, 765-8508, Japan
| | - Akito Kaga
- National Institute of Agrobiological Sciences, Tsukuba, Ibaraki, 305-8602, Japan; Institute of Crop Science, NARO, Tsukuba, Ibaraki, 305-8518, Japan
| | - Toyoaki Anai
- Faculty of Agriculture, Saga University, Saga, Saga, 840-8502, Japan
| | - Chigen Tsukamoto
- Graduate School of Agriculture, Iwate University, Morioka, Iwate, 020-8550, Japan
| | - Hikaru Seki
- Department of Biotechnology, Graduate School of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Toshiya Muranaka
- Department of Biotechnology, Graduate School of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Masao Ishimoto
- National Institute of Agrobiological Sciences, Tsukuba, Ibaraki, 305-8602, Japan; Institute of Crop Science, NARO, Tsukuba, Ibaraki, 305-8518, Japan.
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Takada Y, Takagi M, Someya M, Kobayashi T, Aizawa K, Ukon K, Fujita H, Kitsu Y, Komatsu T, Yaegashi Y, Sakata K, Ikeda H. Nutrition Education Reduce Daily Variation of Rectal Volume and Dose in Patients with Prostate Cancer Treated with Intensity-Modulated Radiation Therapy. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Shimada H, Mori T, Takada A, Takada Y, Noda Y, Takai I, Kohda H, Nishimura T. Use of Chromogenic Substrate S-2251 for Determination of Plasminogen Activator in Rat Ovaries. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1653398] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryA simple, specific and reproducible method for determination of plasminogen activator activity in rat ovaries has been developed by using the chromogenic substrate S-2251. The two steps of enzymatic reactions, i. e. activation of plasminogen and subsequent hydrolysis of the substrate was performed in one step incubation. A linear relationship was observed between the amount of chromogen produced and activator activity in the range of the optical density from 0.05 to 1.20 for 30 min’s incubation. Endogenous activity of non-specific proteases, plasmin or plasmin inhibitors which might be contained in rat ovaries turned out not to interfere with the specificity of a standardized assay procedure. Reproducibility was firmly established with coefficient of variation not exceeding 10%. Using this method, a marked increase followed by a drastic decrease in the activator activity was shown with rat ovaries around the time of ovulation after the injection of human chorionic gonadotropin.
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Affiliation(s)
- H Shimada
- The Department of Obstetrics and Gynecology, School of Medicine, Kyoto University, Kyoto Japan
| | - T Mori
- The Department of Obstetrics and Gynecology, School of Medicine, Kyoto University, Kyoto Japan
| | - A Takada
- The Department of Physiology, School of Medicine, Hamamatsu University, Shizuoka, Japan
| | - Y Takada
- The Department of Physiology, School of Medicine, Hamamatsu University, Shizuoka, Japan
| | - Y Noda
- The Department of Obstetrics and Gynecology, School of Medicine, Kyoto University, Kyoto Japan
| | - I Takai
- The Department of Obstetrics and Gynecology, School of Medicine, Kyoto University, Kyoto Japan
| | - H Kohda
- The Department of Obstetrics and Gynecology, School of Medicine, Kyoto University, Kyoto Japan
| | - T Nishimura
- The Department of Obstetrics and Gynecology, School of Medicine, Kyoto University, Kyoto Japan
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Abstract
SummarySephadex gel filtration of human plasma gave results suggesting the presence of two proactivators of plasminogen, termed proactivators A and B.Activity resembling that of proactivator A was found in rabbit plasma, but not in guinea pig plasma.Plasminogen activators produced by the interaction of proactivator A of human plasma with streptokinase had no caseinolytic or TAMe esterolytic effect.Proactivator A can be separated in a form apparently free from plasminogen, as shown by the heated fibrin plate test and by immunological analysis. On the other hand, proactivator B concentrates prepared so far are contamined with plasminogen.Human proactivators appear to be far more susceptible to streptokinase than are rabbit proactivators.Inhibitors of the fibrinolysin system were observed in the plasmas of all 3 species. These inhibitors are not present in the euglobulin fraction of plasma. Sephadex fractionation of euglobulin fractions results in proactivator preparations that do not contain inhibitors.
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Tanooka M, Tarutani K, Doi H, Suzuki H, Takada Y, Fujiwara M, Toda Y, Fujimoto H, Miyashita M, Okumura A, Kagawa K, Kamikonya N, Yamakado K. EP-1753: Sensing ability of EPID-based in vivo dosimetry for VMAT. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)32062-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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17
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Yano R, Takagi K, Tochigi S, Fujisawa Y, Nomura Y, Tsuchinaga H, Takahashi Y, Takada Y, Kaga A, Anai T, Tsukamoto C, Seki H, Muranaka T, Ishimoto M. Isolation and Characterization of the Soybean Sg-3 Gene that is Involved in Genetic Variation in Sugar Chain Composition at the C-3 Position in Soyasaponins. Plant Cell Physiol 2018; 59:792-805. [PMID: 29401289 DOI: 10.1093/pcp/pcy019] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 01/24/2018] [Indexed: 05/13/2023]
Abstract
Soyasaponins are specialized metabolites present in soybean seeds that affect the taste and quality of soy-based foods. The composition of the sugar chains attached to the aglycone moiety of soyasaponins is regulated by genetic loci such as sg-1, sg-3 and sg-4. Here, we report the cloning and characterization of the Sg-3 gene, which is responsible for conjugating the terminal (third) glucose (Glc) at the C-3 sugar chain of soyasaponins. The gene Glyma.10G104700 is disabled in the sg-3 cultivar, 'Mikuriya-ao', due to the deletion of genomic DNA that results in the absence of a terminal Glc residue on the C-3 sugar chain. Sg-3 encodes a putative glycosyltransferase (UGT91H9), and its predicted protein sequence has a high homology with that of the product of GmSGT3 (Glyma.08G181000; UGT91H4), which conjugates rhamnose (Rha) to the third position of the C-3 sugar chain in vitro. A recombinant Glyma.10G104700 protein could utilize UDP-Glc as a substrate to conjugate the third Glc to the C-3 sugar chain, and introducing a functional Glyma.10G104700 transgene into the mutant complemented the sg-3 phenotype. Conversely, induction of a premature stop codon mutation in Glyma.10G104700 (W270*) resulted in the sg-3 phenotype, suggesting that Glyma.10G104700 was Sg-3. The gmsgt3 (R339H) mutant failed to accumulate soyasaponins with the third Rha at the C-3 sugar chain, and the third Glc and Rha conjugations were both disabled in the sg-3 gmsgt3 double mutant. These results demonstrated that Sg-3 and GmSGT3 are non-redundantly involved in conjugation of the third Glc and Rha at the C-3 sugar chain of soyasaponins, respectively.
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Affiliation(s)
- Ryoichi Yano
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, 305-8572 Japan
- National Institute of Agrobiological Sciences, Tsukuba, 305-8602 Japan
| | - Kyoko Takagi
- National Institute of Agrobiological Sciences, Tsukuba, 305-8602 Japan
| | - Saeko Tochigi
- National Institute of Agrobiological Sciences, Tsukuba, 305-8602 Japan
| | - Yukiko Fujisawa
- National Institute of Agrobiological Sciences, Tsukuba, 305-8602 Japan
- Institute of Crop Science, NARO, Tsukuba, 305-8518 Japan
| | - Yuhta Nomura
- Department of Biotechnology, Graduate School of Engineering, Osaka University, Suita, 565-0871 Japan
| | - Hiroki Tsuchinaga
- Department of Biotechnology, Graduate School of Engineering, Osaka University, Suita, 565-0871 Japan
| | - Yuya Takahashi
- Graduate School of Agriculture, Iwate University, Morioka, 020-8550 Japan
| | - Yoshitake Takada
- Western Region Agricultural Research Center, NARO, Zentsuji, 765-8508 Japan
| | - Akito Kaga
- National Institute of Agrobiological Sciences, Tsukuba, 305-8602 Japan
- Institute of Crop Science, NARO, Tsukuba, 305-8518 Japan
| | - Toyoaki Anai
- Faculty of Agriculture, Saga University, Saga, 840-8502 Japan
| | - Chigen Tsukamoto
- Graduate School of Agriculture, Iwate University, Morioka, 020-8550 Japan
| | - Hikaru Seki
- Department of Biotechnology, Graduate School of Engineering, Osaka University, Suita, 565-0871 Japan
| | - Toshiya Muranaka
- Department of Biotechnology, Graduate School of Engineering, Osaka University, Suita, 565-0871 Japan
| | - Masao Ishimoto
- National Institute of Agrobiological Sciences, Tsukuba, 305-8602 Japan
- Institute of Crop Science, NARO, Tsukuba, 305-8518 Japan
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18
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Chitisankul WT, Takada Y, Takahashi Y, Ito A, Itabashi M, Varanyanond W, Kikuchi A, Ishimoto M, Tsukamoto C. Saponin composition complexities in hypocotyls and cotyledons of nine soybean varieties. Lebensm Wiss Technol 2018. [DOI: 10.1016/j.lwt.2017.10.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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19
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Takada Y, Kajihara N, Sawada H, Mochizuki S, Murakami T. Environmental factors affecting benthic invertebrate assemblages on sandy shores along the Japan Sea coast: implications for coastal biogeography. Ecol Res 2017. [DOI: 10.1007/s11284-017-1553-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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20
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Niibe Y, Yamamoto T, Onishi H, Yamashita H, Katsui K, Matsumoto Y, Oh R, Aoki M, Shintani T, Myojin M, Yamada K, Kobayashi M, Ozaki M, Manabe Y, Yahara K, Nishikawa A, Kakuhara H, Matsuoka Y, Yamamoto K, Fukuda T, Ushijima Y, Ohashi S, Kan T, Kubota S, Inoue T, Yamaguchi N, Takada Y, Nagata K, Suzuki O, Shirai K, Terahara A, Jingu K. MA 09.06 Pulmonary Oligometastases Treated by Stereotactic Body Radiation Therapy (SBRT): A Nationwide Survey of 1,378 Patients. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Takada Y. Recognition of Kidney Donation by Living Kidney Donors That Accompanies Changes in the Recipients' Physical Condition: Focusing on Its Influences on Donors. Transplant Proc 2017; 49:944-949. [PMID: 28583564 DOI: 10.1016/j.transproceed.2017.03.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
INTRODUCTION In 2013, a total of 1586 kidney transplants were performed in Japan, and 1431 (90.2%) of the organs were from living donors. The purpose of this study is to illuminate the awareness of living kidney donors toward kidney donation after the condition of the recipient changed, thus clarifying the influence of that recognition on the donor. METHODS This study design was qualitative descriptive research. Transplant coordinators at 4 hospitals were commissioned to screen subject candidates and hand-deliver printed research explanations to them. Candidates who responded were selected as subjects. I conducted semistructured interviews and analyzed them using the grounded theory approach. This research was approved by the Ethics Research Committee, Faculty of Nursing, Toho University. RESULTS The survey period was from April to November 2014, and consent was obtained from 5 donors and 5 recipients. The outcome of recipients who received kidneys from the 5 donors was as follows: recovered after temporary worsening (n = 3), early graft loss (n = 1), and early death (n = 1). The core category was "to the donor, the meaning of kidney donation is continually redefined." The donors had a strong interest in the physical condition of the recipient. The 3 changes in the recipients' physical condition, defined as "recovery," "temporary worsening," and "complete deterioration," affected the donor's condition. CONCLUSION Due to changes in the recipient's physical condition, donors' psychological and physical condition and their definition of the meaning of kidney donation also changed. Health care systems that guarantee lifelong follow-up of the physical and psychological condition of donors after donation are needed.
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Affiliation(s)
- Y Takada
- Faculty of Nursing, Musashino University, Tokyo, Japan.
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22
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Minematsu A, Hanaoka T, Takeshita D, Takada Y, Okuda S, Imagita H, Sakata S. Long-term wheel-running can prevent deterioration of bone properties in diabetes mellitus model rats. J Musculoskelet Neuronal Interact 2017; 17:433-443. [PMID: 28250247 PMCID: PMC5383771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVES The purpose of this study was to examine the effects of long-term wheel-running on tibia bone properties in T2DM Otsuka Long-Evans Tokushima Fatty (OLETF) rats. METHODS Ten five-week-old male OLETF rats were used as experimental animals and 5 Long-Evans Tokushima Otsuka (LETO) rats as controls. Half of OLETF rats performed daily voluntary wheel-running for 17 months (OLETF-EXE), while neither the remainder of OLETF nor LETO rats had exercise. At the end of experiment, in addition to serum biochemical and bone formation/resorption marker analyses, bone mass, trabecular bone microarchitecture and cortical bone geometry were analyzed in left tibia, and bone mechanical strength of right tibia was measured. RESULTS Tibia bone mass, trabecular bone microarchitecture, cortical bone geometry and bone mechanical strength deteriorated in diabetic OLETF rats. However, such deterioration was obviously attenuated in OLETF-EXE rats, which maintained normal levels of blood glucose, HbA1c and blood urea nitrogen. CONCLUSIONS Daily wheel-running could prevent the deterioration of bone properties in OLETF rats. This would be induced mainly by suppressing the development of T2DM. Regular physical exercise may be a potent strategy for preventing not only the development of diabetes but also the deterioration of bone properties in patients with chronic T2DM.
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Affiliation(s)
- A. Minematsu
- Department of Physical Therapy, Faculty of Health Science, Kio University,Corresponding author: A. Minematsu, Department of Physical Therapy, Faculty of Health Science, Kio University, 4-2-2 Umaminaka, Koryo-cho, Kitakatsuragi-gun, Nara 635-0832, Japan E-mail:
| | - T. Hanaoka
- Division of Health Science, Graduate School of Health Science, Kio University, Nara, Japan
| | - D. Takeshita
- Department of Artificial Organs, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Y. Takada
- Division of Health Science, Graduate School of Health Science, Kio University, Nara, Japan
| | - S. Okuda
- Department of Modern Education, Faculty of Education, Kio University, Nara, Japan
| | - H. Imagita
- Department of Physical Therapy, Faculty of Health Science, Kio University
| | - S. Sakata
- Department of Physiology, Nara Medical University, Kashihara, Nara, Japan
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Yano R, Takagi K, Takada Y, Mukaiyama K, Tsukamoto C, Sayama T, Kaga A, Anai T, Sawai S, Ohyama K, Saito K, Ishimoto M. Metabolic switching of astringent and beneficial triterpenoid saponins in soybean is achieved by a loss-of-function mutation in cytochrome P450 72A69. Plant J 2017; 89:527-539. [PMID: 27775214 DOI: 10.1111/tpj.13403] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 10/12/2016] [Accepted: 10/17/2016] [Indexed: 05/24/2023]
Abstract
Triterpenoid saponins are major components of secondary metabolites in soybean seeds and are divided into two groups: group A saponins, and 2,3-dihydro-2,5-dihydroxy-6-methyl-4H-pyran-4-one (DDMP) saponins. The aglycone moiety of group A saponins consists of soyasapogenol A (SA), which is an oxidized β-amyrin product, and the aglycone moiety of the DDMP saponins consists of soyasapogenol B (SB). Group A saponins produce a bitter and astringent aftertaste in soy products, whereas DDMP saponins have known health benefits for humans. We completed map-based cloning and characterization of the gene Sg-5, which is responsible for SA biosynthesis. The naturally occurring sg-5 mutant lacks group A saponins and has a loss-of-function mutation (L164*) in Glyma15g39090, which encodes the cytochrome P450 enzyme, CYP72A69. An enzyme assay indicated the hydroxylase activity of recombinant CYP72A69 against SB, which also suggested the production of SA. Additionally, induced Glyma15g39090 mutants (R44* or S348P) lacked group A saponins similar to the sg-5 mutant, indicating that Glyma15g39090 corresponds to Sg-5. Endogenous levels of DDMP saponins were higher in the sg-5 mutant than in the wild-type lines due to the loss of the enzyme activity that converts SB to SA. Interestingly, the genomes of palaeopolyploid soybean and the closely related common bean carry multiple Sg-5 paralogs in a genomic region syntenic to the soybean Sg-5 region. However, SA did not accumulate in common bean samples, suggesting that Sg-5 activity evolved after gene duplication event(s). Our results demonstrate that metabolic switching of undesirable saponins with beneficial saponins can be achieved in soybean by disabling Sg-5.
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Affiliation(s)
- Ryoichi Yano
- National Institute of Agrobiological Sciences (NIAS), 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8572, Japan
| | - Kyoko Takagi
- National Institute of Agrobiological Sciences (NIAS), 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan
| | - Yoshitake Takada
- Western Region Agricultural Research Center, NARO, 1-3-1 Senyu, Zentsuji, Kagawa, 765-8508, Japan
| | - Kyosuke Mukaiyama
- Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka, Iwate, 020-8550, Japan
| | - Chigen Tsukamoto
- Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka, Iwate, 020-8550, Japan
| | - Takashi Sayama
- National Institute of Agrobiological Sciences (NIAS), 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan
- Institute of Crop Science, NARO, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8518, Japan
| | - Akito Kaga
- National Institute of Agrobiological Sciences (NIAS), 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan
- Genetic Resources Center, NARO, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan
| | - Toyoaki Anai
- Laboratory of Plant Genetics and Breeding, Faculty of Agriculture, Saga University, Honjyo-machi 1, Saga, 840-8502, Japan
| | - Satoru Sawai
- RIKEN Center for Sustainable Resource Science (CSRS), 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
| | - Kiyoshi Ohyama
- RIKEN Center for Sustainable Resource Science (CSRS), 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
- Department of Chemistry and Materials Science, Tokyo Institute of Technology, Oh-okayama 2-12-1, Meguro-ku, Tokyo, 152-8551, Japan
| | - Kazuki Saito
- RIKEN Center for Sustainable Resource Science (CSRS), 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
- Graduate School of Pharmaceutical Sciences, Chiba University, Inohana 1-8-1, Chuo-ku, Chiba, 260-8675, Japan
| | - Masao Ishimoto
- National Institute of Agrobiological Sciences (NIAS), 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan
- Institute of Crop Science, NARO, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8518, Japan
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Iwami D, Hotta K, Sasaki H, Hirose T, Higuchi H, Takada Y, Shinohara N. Highly Immunogenic DQB1 Mismatch Eplets Are Associated With Development of Chronic Active Antibody-Mediated Rejection: A First Report From Japan. Transplant Proc 2017; 49:84-87. [DOI: 10.1016/j.transproceed.2016.10.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Doi H, Matsumoto S, Odawara S, Shikata T, Tanooka M, Kitajima K, Takada Y, Fujiwara M, Tsujimura T, Kamikonya N, Hirota S. Pravastatin Reduces Radiation-Induced Damage to Normal Tissues. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.2031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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26
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Kazuma S, Tokinaga Y, Takada Y, Hayashi S, Yamakage M. Abstract PR031. Anesth Analg 2016. [DOI: 10.1213/01.ane.0000492441.48815.3c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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27
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Hayashi N, Takada Y, Mizuno T, Nakae H, Murai T. SU-F-T-255: Accuracy and Precision of Dynamic Tracking Irradiation with VERO-4DRT System. Med Phys 2016. [DOI: 10.1118/1.4956395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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28
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Kato S, Takada Y, Shimamura S, Hirata K, Sayama T, Taguchi-Shiobara F, Ishimoto M, Kikuchi A, Nishio T. Transfer of the Rsv3 locus from 'Harosoy' for resistance to soybean mosaic virus strains C and D in Japan. Breed Sci 2016; 66:319-27. [PMID: 27162503 PMCID: PMC4785009 DOI: 10.1270/jsbbs.66.319] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 11/05/2015] [Indexed: 05/10/2023]
Abstract
Resistance to soybean mosaic virus (SMV) is imperative for soybean (Glycine max (L.) Merr.) production in the Tohoku region. Molecular markers for SMV resistance were previously reported for U.S. SMV strains, but they cannot be applied because of the differences in strain classification between Japan and the U.S. A U.S. variety 'Harosoy' has been used mainly as a donor of resistance to SMV strains C and D in a Japanese breeding program, resulting in resistant varieties such as 'Fukuibuki.' Because 'Harosoy' harbors the Rsv3 gene conferring resistance to the virulent SMV strain groups, G5 through G7, it appears that the Rsv3 gene confers resistance to strains C and D. In this study, we introduced resistance to the two strains from 'Fukuibuki' into a leading variety 'Ohsuzu' by recurrent backcrossing with marker-assisted selection. All lines selected with markers near Rsv3 showed resistance to the strains, suggesting that the Rsv3 locus is responsible for the resistance. Three years of trials showed that one of the breeding lines, 'Tohoku 169,' was equivalent to 'Ohsuzu' with respect to agricultural characteristics such as seed size, maturity date, and seed yield, except for the SMV resistance.
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Affiliation(s)
- Shin Kato
- NARO Tohoku Agricultural Research Center,
297 Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
- Corresponding author (e-mail: )
| | - Yoshitake Takada
- NARO Western Region Agricultural Research Center,
1-3-1 Senyuu, Zentsuji, Kagawa 765-8508,
Japan
| | - Satoshi Shimamura
- NARO Tohoku Agricultural Research Center,
297 Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
| | - Kaori Hirata
- NARO Tohoku Agricultural Research Center,
297 Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
| | - Takashi Sayama
- National Institute of Agrobiological Sciences,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Fumio Taguchi-Shiobara
- National Institute of Agrobiological Sciences,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Masao Ishimoto
- National Institute of Agrobiological Sciences,
2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602,
Japan
| | - Akio Kikuchi
- NARO Tohoku Agricultural Research Center,
297 Uenodai, Kariwano, Daisen, Akita 019-2112,
Japan
| | - Takeshi Nishio
- Graduate School of Agricultural Science, Tohoku University,
1-1 Tsutsumidori, Amamiyamachi, Aoba, Sendai, Miyagi 981-8555,
Japan
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Nakayama A, Matsuo H, Ichida K, Takada T, Nakashima H, Nakamura T, Takada Y, Shimizu S, Sakiyama M, Hamajima N, Sakurai Y, Shimizu T, Shinomiya N. A Major Risk of Early-Onset Gout: ABCG2 Dysfunction in a Japanese Male Population. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv096.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Masunari N, Hiro-oku M, Dan S, Nanri T, Kondo M, Goto M, Takada Y, Saigusa M. Chela asymmetry in a durophagous crab: predominance of right-handedness and handedness reversal is linked to chela size and closing force. ACTA ACUST UNITED AC 2015; 218:3658-70. [PMID: 26417016 DOI: 10.1242/jeb.120196] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 09/17/2015] [Indexed: 11/20/2022]
Abstract
The swimming crab Portunus trituberculatus is a durophagous brachyuran. Right-handed crabs are predominant, but left-handed crabs are also found in nature. Left-handedness may arise from loss of the right crusher. We examined whether heterochely (morphology) was correlated with differences in closing force (physical property) and handedness (behaviour). The closing force was stronger in larger chela with greater apodeme height and handedness resided in the chela with stronger closing force. With loss of the right chela (autotomy), handedness transitioned from the right to left chela, and all crabs were left-handed thereafter. Reversed handedness was accompanied with a reduction of size and closing force in the regenerated right chela, and growth of the original left chela. After handedness reversal, dentition on the left dactylus of the newly-converted crusher was close to that of the original right crusher, but did not attain the same shape, even after 10 moults. Left-handed crabs were significantly worse than right-handed crabs at crushing hard-shelled prey. Chela formation was symmetrical in the zoea, and heterochely and right-handedness started in the megalopa, regardless of maternal handedness. Since the left chela is capable of being the crusher, heterochely may be caused by differences in morphogenetic velocity between the right and left chelae, under a signal discriminating right from left. Right-handedness is an attribute of P. trituberculatus, that would be inheritable across generations. It is probable that right-handedness was used in the earliest durophagous crabs, and this trend has been succeeded to extant species.
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Affiliation(s)
- Nobufumi Masunari
- Research Institute for Fisheries Science, Okayama Prefectural Technology Centre for Agriculture, Forestry, and Fisheries, Ushimado 6641-6, Okayama-Setouchi 701-4303, Japan
| | - Masanori Hiro-oku
- Research Institute for Fisheries Science, Okayama Prefectural Technology Centre for Agriculture, Forestry, and Fisheries, Ushimado 6641-6, Okayama-Setouchi 701-4303, Japan
| | - Shigeki Dan
- Tamano Laboratory, National Research Institute of Fisheries and Environment of Inland Sea, Fisheries Research Agency, Chikko 5-21-1, Okayama-Tamano 706-0002, Japan
| | - Takahiro Nanri
- Section of Research and Education, The Biosphere Project (NPO), Tsushima-Fukui 1-8-71, Okayama-Kitaku 700-0080, Japan
| | - Masayoshi Kondo
- Research Institute for Fisheries Science, Okayama Prefectural Technology Centre for Agriculture, Forestry, and Fisheries, Ushimado 6641-6, Okayama-Setouchi 701-4303, Japan
| | - Masaki Goto
- Research Institute for Fisheries Science, Okayama Prefectural Technology Centre for Agriculture, Forestry, and Fisheries, Ushimado 6641-6, Okayama-Setouchi 701-4303, Japan
| | - Yoshitake Takada
- Japan Sea National Fisheries Research Institute, Fisheries Research Agency, Suido-cho 1-5939-22, Niigata 951-8121, Japan
| | - Masayuki Saigusa
- Section of Research and Education, The Biosphere Project (NPO), Tsushima-Fukui 1-8-71, Okayama-Kitaku 700-0080, Japan
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Kosaka K, Tanooka M, Inoue H, Tarutani K, Fujiwara M, Niwa Y, Takada Y, Doi H, Odawara S, Suzuki H, Kamikonya N, Hirota S. 634 Correlation analysis between pre-treatment verification precision and plan complexity or machine parameters using log files for VMAT delivery. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30370-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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32
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Doi H, Odawara S, Matsumoto S, Shikata T, Suzuki H, Kato T, Tarutani K, Kosaka K, Inoue H, Tanooka M, Takada Y, Tsujimura T, Kamikonya N, Hirota S. 609 Pravastatin protects normal intestinal epithelium and normal lung from radiation-induced cell death. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30345-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Doi H, Beppu N, Kato T, Tanooka M, Kengo K, Tarutani K, Suzuki H, Odawara S, Niwa Y, Takada Y, Fujiwara M, Noda M, Tomita N, Kamikonya N, Hirota S. 2035 Diffusion-weighted magnetic resonance imaging for the prediction of the tumor response to neoadjuvant chemoradiotherapy using irinotecan plus S-1 for rectal cancer. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30958-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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34
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Hayashi N, Mizuno T, Takada Y, Murai T. SU-E-T-433: Field-In-Field Irradiation for Breast Cancer with VERO-4DRT System: A Feasibility Study. Med Phys 2015. [DOI: 10.1118/1.4924794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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35
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Nagata Y, Kohno R, Takada Y, Hotta K, Yamaguchi H, Akimoto T. SU-E-T-263: Development of Dose Monitor Unit Calculation Using Clarkson Integration for Proton Beam Therapy Using Beam-Wobbling System. Med Phys 2015. [DOI: 10.1118/1.4924625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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36
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Ichida K, Matsuo H, Nakayama A, Sakiyama M, Chiba T, Shimizu S, Nakashima H, Nakamura T, Takada Y, Takada T, Nakaoka H, Wakai K, Sakurai Y, Shimizu T, Suzuki H, Shinomiya N. SAT0324 ABCG2 Dysfunction Leads to Renal Urate Underexcretion Type Hyperuricemia in Addition to Extra-Renal Urate Underexcretion Type Hyperuricemia. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.5432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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37
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Mizutani S, Takada Y, Kohno R, Hotta K, Akimoto T. SU-E-T-805: Verification of the Simplified Monte Carlo Method for Simulation in An Inhomogeneous Phantom. Med Phys 2015. [DOI: 10.1118/1.4925169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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38
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Nagase M, Sakakibara K, Honda N, Takada Y, Takada A. Does measurement of urinary rare proteins provide diagnostic significance in glomerular diseases? Contrib Nephrol 2015; 68:141-8. [PMID: 3069315 DOI: 10.1159/000416505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- M Nagase
- Department of Medicine, Hamamatsu University, School of Medicine, Japan
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Abstract
Fifteen patients with pityriasis lichenoides chronica (parapsoriasis guttata) were treated with sunlight irradiation during the summer months at seaside resorts under the supervision of the authors. Complete clearing occurred in 1 of the patients, almost complete clearing in 8, definte improvement in 4, temporary clearing in 2. All patients responded beneficially and no worsening was noted in these 15 cases. In an additional six cases who were instructed to expose themselves to sunlight similar results were obtained.
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Affiliation(s)
- Y Takada
- Department of Dermatology, University of Tokyo
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40
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Hori M, Someya M, Nakata K, Kitagawa M, Hasegawa T, Tsuchiya T, Gocho T, Fukushima Y, Takada Y, Sakata K. PO-1107 Comparative analysis of VMAT plans for prostate cancer with different MLCs, Elekta Agility and MLCi2. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41099-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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41
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Odawara S, Doi H, Tsujimura T, Shikata T, Suzuki H, Kosaka K, Inoue H, Tanooka M, Takada Y, Niwa Y, Fujiwara M, Kamikonya N, Hirota S. Polaprezinc Protects Intestinal Epithelium From Radiation-Induced Damage in Mice. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Kato S, Sayama T, Fujii K, Yumoto S, Kono Y, Hwang TY, Kikuchi A, Takada Y, Tanaka Y, Shiraiwa T, Ishimoto M. A major and stable QTL associated with seed weight in soybean across multiple environments and genetic backgrounds. Theor Appl Genet 2014; 127:1365-74. [PMID: 24718925 DOI: 10.1007/s00122-014-2304-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Accepted: 03/24/2014] [Indexed: 05/05/2023]
Abstract
KEY MESSAGE We detected a QTL for single seed weight in soybean that was stable across multiple environments and genetic backgrounds with the use of two recombinant inbred line populations. Single seed weight (SSW) in soybean is a key determinant of both seed yield and the quality of soy food products, and it exhibits wide variation. SSW is under genetic control, but the molecular mechanisms of such control remain unclear. We have now investigated quantitative trait loci (QTLs) for SSW in soybean and have identified such a QTL that is stable across multiple environments and genetic backgrounds. Two populations of 225 and 250 recombinant inbred lines were developed from crosses between Japanese and US cultivars of soybean that differ in SSW by a factor of ~2, and these populations were grown in at least three different environments. A whole-genome panel comprising 304 simple sequence repeat (SSR) loci was applied to mapping in each population. We identified 15 significant QTLs for SSW dispersed among 11 chromosomes in the two populations. One QTL located between Sat_284 and Sat_292 on chromosome 17 was detected (3.6 < LOD < 14.1) in both populations grown in all environments. This QTL, tentatively designated qSw17-1, accounted for 9.4-20.9 % of phenotypic variation in SSW, with a dominant allele being associated with increased SSW. Given its substantial effect on SSW, qSw17-1 is an attractive target for positional cloning, and SSR markers closely associated with this locus may prove useful for marker-assisted selection for SSW control in soybean.
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Affiliation(s)
- Shin Kato
- National Agriculture and Food Research Organization (NARO) Tohoku Region Agricultural Research Center, 297 Uenodai, Kariwano, Daisen, Akita, 019-2112, Japan
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Senda M, Nishimura S, Kasai A, Yumoto S, Takada Y, Tanaka Y, Ohnishi S, Kuroda T. Comparative analysis of the inverted repeat of a chalcone synthase pseudogene between yellow soybean and seed coat pigmented mutants. Breed Sci 2013; 63:384-92. [PMID: 24399910 PMCID: PMC3859349 DOI: 10.1270/jsbbs.63.384] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Accepted: 08/17/2013] [Indexed: 05/13/2023]
Abstract
In soybean, the I gene inhibits pigmentation over the entire seed coat, resulting in yellow seeds. It is thought that this suppression of seed coat pigmentation is due to naturally occurring RNA silencing of chalcone synthase genes (CHS silencing). Fully pigmented seeds can be found among harvested yellow seeds at a very low percentage. These seed coat pigmented (scp) mutants are generated from yellow soybeans by spontaneous recessive mutation of the I gene. A candidate for the I gene, GmIRCHS, contains a perfect inverted repeat (IR) of a CHS pseudogene (pseudoCHS3) and transcripts of GmIRCHS form a double-stranded CHS RNA that potentially triggers CHS silencing. One CHS gene, ICHS1, is located 680 bp downstream of GmIRCHS. Here, the GmIRCHS-ICHS1 cluster was compared in scp mutants of various origins. In these mutants, sequence divergence in the cluster resulted in complete or partial loss of GmIRCHS in at least the pseudoCHS3 region. This result is consistent with the notion that the IR of pseudoCHS3 is sufficient to induce CHS silencing, and further supports that GmIRCHS is the I gene.
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Affiliation(s)
- Mineo Senda
- Faculty of Agriculture and Life Sciences, Hirosaki University,
3 Bunkyo-cho, Hirosaki, Aomori 036-8561,
Japan
- Corresponding author (e-mail: )
| | - Satsuki Nishimura
- Faculty of Agriculture and Life Sciences, Hirosaki University,
3 Bunkyo-cho, Hirosaki, Aomori 036-8561,
Japan
| | - Atsushi Kasai
- Faculty of Agriculture and Life Sciences, Hirosaki University,
3 Bunkyo-cho, Hirosaki, Aomori 036-8561,
Japan
| | - Setsuzo Yumoto
- Research Support Center, National Agricultural Research Center for Tohoku Region,
Yotsuya, Daisen, Akita 014-0102,
Japan
| | - Yoshitake Takada
- National Agricultural Research Organization (NARO) Western Region Agricultural Research Center,
1-3-1 Senyu, Zentsuji, Kagawa 765-8508,
Japan
| | - Yoshinori Tanaka
- Hokkaido Research Organization Tokachi Agricultural Experiment Station,
S9-2 Shinsei, Memuro, Kasai, Hokkaido 082-0081,
Japan
| | - Shizen Ohnishi
- Hokkaido Research Organization Kitami Agricultural Experiment Station,
52 Yayoi, Kunneppu, Tokoro, Hokkaido 099-1406,
Japan
| | - Tomohisa Kuroda
- Niigata Agricultural Research Institute,
857 Nagakura-machi, Nagaoka, Niigata 940-0826,
Japan
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Kuroda Y, Kaga A, Tomooka N, Yano H, Takada Y, Kato S, Vaughan D. QTL affecting fitness of hybrids between wild and cultivated soybeans in experimental fields. Ecol Evol 2013; 3:2150-68. [PMID: 23919159 PMCID: PMC3728954 DOI: 10.1002/ece3.606] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Revised: 04/24/2013] [Accepted: 04/25/2013] [Indexed: 11/30/2022] Open
Abstract
The objective of this study was to identify quantitative trait loci (QTL) affecting fitness of hybrids between wild soybean (Glycine soja) and cultivated soybean (Glycine max). Seed dormancy and seed number, both of which are important for fitness, were evaluated by testing artificial hybrids of G. soja × G. max in a multiple-site field trial. Generally, the fitness of the F1 hybrids and hybrid derivatives from self-pollination was lower than that of G. soja due to loss of seed dormancy, whereas the fitness of hybrid derivatives with higher proportions of G. soja genetic background was comparable with that of G. soja. These differences were genetically dissected into QTL for each population. Three QTLs for seed dormancy and one QTL for total seed number were detected in the F2 progenies of two diverse cross combinations. At those four QTLs, the G. max alleles reduced seed number and severely reduced seed survival during the winter, suggesting that major genes acquired during soybean adaptation to cultivation have a selective disadvantage in natural habitats. In progenies with a higher proportion of G. soja genetic background, the genetic effects of the G. max alleles were not expressed as phenotypes because the G. soja alleles were dominant over the G. max alleles. Considering the highly inbreeding nature of these species, most hybrid derivatives would disappear quickly in early self-pollinating generations in natural habitats because of the low fitness of plants carrying G. max alleles.
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Affiliation(s)
- Yosuke Kuroda
- National Institute of Agrobiological Sciences 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8602, Japan
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Takada Y, Sasama H, Sayama T, Kikuchi A, Kato S, Ishimoto M, Tsukamoto C. Genetic and chemical analysis of a key biosynthetic step for soyasapogenol A, an aglycone of group A saponins that influence soymilk flavor. Theor Appl Genet 2013; 126:721-31. [PMID: 23229125 DOI: 10.1007/s00122-012-2013-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Accepted: 10/24/2012] [Indexed: 06/01/2023]
Abstract
Although certain saponins in soybean seeds have been reported to have health benefits, group A acetyl saponins cause undesirable bitter and astringent tastes in soy products. Therefore, reduction or elimination of group A saponins is an important target for soybean breeders. A wide survey of cultivated and wild soybean germplasm identified a mutant line that lacked group A saponins. The absence of soyasapogenol A, a group A saponin aglycone, is controlled by a single recessive allele, sg-5 that mapped genetically near the SSR marker, Satt117, on soybean chromosome 15 (linkage group E). The locus is epistatic to Sg-1, which controls the terminal sugar variation on the C-22 sugar chain of soyasapogenol A, and allelic differences at this locus lead to changes in the amount of DDMP saponins and their derivatives group B and E products. These findings provide a new insight into the biosynthetic pathway of soybean saponins, and identify a genetic approach that can be applied to improve the quality of foods produced from soybean.
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Affiliation(s)
- Yoshitake Takada
- National Agricultural Research Organization (NARO) Western Region Agricultural Research Center, 1-3-1 Senyu, Zentsuji, Kagawa, 765-8508, Japan
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Komiya T, Sato K, Shioya H, Inagaki Y, Hagiya H, Kozaki R, Imai M, Takada Y, Maeda T, Kurata H, Kurono M, Suzuki R, Otsuki K, Habashita H, Nakade S. Efficacy and immunomodulatory actions of ONO-4641, a novel selective agonist for sphingosine 1-phosphate receptors 1 and 5, in preclinical models of multiple sclerosis. Clin Exp Immunol 2013. [PMID: 23199323 DOI: 10.1111/j.1365-2249.2012.04669.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
ONO-4641 is a next-generation sphingosine 1-phosphate (S1P) receptor agonist selective for S1P receptors 1 and 5. The objective of the study was to characterize the immunomodulatory effects of ONO-4641 using preclinical data. ONO-4641 was tested in both in-vitro pharmacological studies as well as in-vivo models of transient or relapsing-remitting experimental autoimmune encephalomyelitis (EAE). In vitro, ONO-4641 showed highly potent agonistic activities versus S1P receptors 1 and 5 [half maximal effective concentration (EC(50) ) values of 0·0273 and 0·334 nM, respectively], and had profound S1P receptor 1 down-regulating effects on the cell membrane. ONO-4641 decreased peripheral blood lymphocyte counts in rats by inhibiting lymphocyte egress from secondary lymphoid tissues. In a rat experimental autoimmune encephalomyelitis (EAE) model, ONO-4641 suppressed the onset of disease and inhibited lymphocyte infiltration into the spinal cord in a dose-dependent manner at doses of 0·03 and 0·1 mg/kg. Furthermore, ONO-4641 prevented relapse of disease in a non-obese diabetic mouse model of relapsing-remitting EAE. These observations suggest that ONO-4641 may provide therapeutic benefits in the treatment of multiple sclerosis.
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Affiliation(s)
- T Komiya
- Exploratory Research Laboratories, Tsukuba, Ibaraki, Japan.
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Suzuki Y, Yamahira K, Kajihara N, Takada Y. Spatial variation in population dynamics of the sand-burrowing amphipod Haustorioides japonicus. POPUL ECOL 2012. [DOI: 10.1007/s10144-012-0358-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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48
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Takada Y, Nagano H, Kawaguchi Y, Suzuki Y, Nakajima E, Sugiyama M, Sugaya M, Hashimoto Y, Sakairi M. Evaluation of false alarm rates of a walkthrough detection portal designed for detecting triacetone triperoxide (tatp) vapour from field test results and receiver operating characteristic (roc) curves. ACTA ACUST UNITED AC 2012. [DOI: 10.2495/safe-v2-n3-256-264] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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49
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Fujiwara M, Kamikonya N, Tanooka M, Miura H, Doi H, Takada Y, Terada T, Uwa N, Sagawa K, Hirota S. Hypothyroidism After Radiation Therapy for Head-and-Neck Cancer: The Retrospective DVH Analysis of 75 Patients -- Volume of Thyroid Gland Spared From Doses Can Be a New Dose Constraint for Treatment Planning? Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1388] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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50
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Miki Y, Hosono M, Masuoka Y, Ogino R, tsutsumi S, Maekado T, Takada Y, Shimatani Y, Miki Y. Impact of Chemoradiation Therapy Using Docetaxel for Treatment of Scalp Angiosarcoma. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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