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Fujihara Y, Sakai A, Niwa S, Ota H, Kumagai H. Delayed debridement affects prognosis in patients with purulent flexor tenosynovitis: a retrospective cohort and multivariate analyses. Arch Orthop Trauma Surg 2024; 144:2437-2441. [PMID: 38492063 DOI: 10.1007/s00402-024-05269-7] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 03/03/2024] [Indexed: 03/18/2024]
Abstract
INTRODUCTION Purulent flexor tenosynovitis (PFT) is a severe condition, and many patients report serious postoperative complications such as amputation, limited range of motion (ROM), or recurrence of symptoms. However, the ideal protocol for PFT treatment remains unknown owing to the limited number of studies. This retrospective cohort study aimed to identify prognostic factors for PFT treatment outcomes. MATERIALS AND METHODS Sixty-six patients (46 men and 20 women) with PFT who underwent surgical debridement at our hospital between September 2005 and January 2023 were included in this study. We conducted multivariate linear regression analysis with permanent deficit as the primary outcome. We defined the number of operations, laboratory data, interval from onset to debridement, previous conservative treatment, aetiology, Kanavel's signs, and medical history of diabetes mellitus as possible prognostic factors. We also defined the interval from onset to debridement as a secondary outcome and performed logistic regression analysis. RESULTS Overall, 25 (38%) patients had postoperative deficits. Longer interval from onset to surgery (odds ratio [OR]: 1.1, 95% confidence interval [CI]: 1.0-1.1) and polymicrobial infection (OR: 7.8, 95% CI: 1.56-38.8) were significant prognostic factors for unfavourable outcomes. Additional multivariate analysis showed that preoperative conservative treatment prolonged the interval to surgery (estimate, 16.4; standard error, 1.6; p < 0.05). CONCLUSIONS The results of this study suggest that indications for nonoperative treatment of PFT are limited and that earlier surgical debridement is recommended.
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Affiliation(s)
- Yuki Fujihara
- Department of Orthopaedic and Hand Surgery, Nagoya Ekisaikai Hospital, 4-66 Shonen-Cho, Nakagawa-Ku, Nagoya, 454-8502, Japan.
| | - Ai Sakai
- Department of Orthopaedic and Hand Surgery, Nagoya Ekisaikai Hospital, 4-66 Shonen-Cho, Nakagawa-Ku, Nagoya, 454-8502, Japan
| | - Satoshi Niwa
- Department of Orthopaedic and Hand Surgery, Nagoya Ekisaikai Hospital, 4-66 Shonen-Cho, Nakagawa-Ku, Nagoya, 454-8502, Japan
| | - Hideyuki Ota
- Department of Orthopaedic and Hand Surgery, Nagoya Ekisaikai Hospital, 4-66 Shonen-Cho, Nakagawa-Ku, Nagoya, 454-8502, Japan
| | - Hiroaki Kumagai
- Department of Orthopaedic and Hand Surgery, Nagoya Ekisaikai Hospital, 4-66 Shonen-Cho, Nakagawa-Ku, Nagoya, 454-8502, Japan
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Kato M, Takegami Y, Tokutake K, Asami Y, Takahashi Y, Takahashi H, Kumagai H, Imagama S. Comparison of the Outcomes of Plating, Screw Fixation, and Pinning in Sanders Type II Fractures: A Multicenter (TRON) Retrospective Study. J Foot Ankle Surg 2024; 63:171-175. [PMID: 37871793 DOI: 10.1053/j.jfas.2023.10.002] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/17/2023] [Accepted: 10/08/2023] [Indexed: 10/25/2023]
Abstract
Calcaneus fractures Sanders type II have been historically treated with various modalities. However, few studies compared these procedures directly. The multicenter (TRON group) retrospective study compared the radiographic and clinical outcomes of operative procedures using Kirschner wires (K-wires), cannulated cancellous screws (CCSs) and plates. Between 2014 and 2020, 121 patients with Sanders type II calcaneus fractures were surgically treated in our group using K-wire (Group K: n = 31), CCS (Group C: n = 60) or plate (Group p: n = 30) fixation. We assessed the American Orthopedic Foot and Ankle Society (AOFAS) score and infection after operation as clinical outcomes and Böhler's and Preiss' angles as radiographic outcomes. The AOFAS scores of the 3 groups showed a significant difference, with Group P showing significantly inferior scores to Group C at 6 months postoperatively and at the final follow-up examination (p = .015 and p < .001, respectively). The rate of infection did not differ to a statistically significant extent, but the incidence in Group P tended to be higher in comparison to the other groups. Among the three groups, Böhler's angle did not differ to a statistically significant extent immediately after the operation (p = .113) or at the final follow-up examination (p = .383). Postoperatively, Preiss' angle did not differ to a statistically significant extent (p = .251) but was significantly smaller in the Group C at the final follow-up examination (p = .0331). In Sanders type II calcaneus fracture, CCS fixation may obtain the best functional outcomes.
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Affiliation(s)
- Mihoko Kato
- Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yasuhiko Takegami
- Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Katsuhiro Tokutake
- Department of Hand Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuta Asami
- Department of Hand Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yu Takahashi
- Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hidetane Takahashi
- Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroaki Kumagai
- Department of Orthopaedic Surgery, Nagoya Ekisaikai Hospital, Nagoya, Japan
| | - Shiro Imagama
- Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Ishihara N, Tokutake K, Takegami Y, Asami Y, Kumagai H, Ota H, Kimura Y, Ohshima K, Imagama S. An age-matched comparative study on intramedullary nailing and plate fixation of both-bone diaphyseal forearm fracture in adolescents. Eur J Orthop Surg Traumatol 2024; 34:441-450. [PMID: 37573542 DOI: 10.1007/s00590-023-03679-8] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 08/03/2023] [Indexed: 08/15/2023]
Abstract
OBJECTIVE This study aimed to compare radiological and functional outcomes and complication rates between intramedullary nailing (IMN) and plate fixation for diaphyseal forearm fractures in adolescents via an age-matched analysis. METHODS Data were collected from medical records at 11 hospitals from 2009 to 2019, and the age-matched study was conducted between IMN and plate fixation. Functional outcomes, radiographic outcomes, and postoperative complication rates were compared. RESULTS The IMN group (Group N) and plate fixation group (Group P) each comprised 26 patients after age matching. The mean age after matching was 13.42 years old. Bone maturities at the wrist of the radius and ulna were not significantly different between the two groups (p = 0.764 and p = 1). At the last follow-up period, functional outcomes using the Price criteria were over 90% in both groups, and the rotational range of motion was comparable to that of the healthy side. Over 70% of cases in Group N were performed by closed reduction, and operation time was half that of Group P. Postoperative neurological symptoms and refractures were more common in Group P than in Group N, although not statistically significantly so. CONCLUSIONS Treatment outcomes for age-matched adolescent diaphyseal forearm fractures were excellent with IMN, as well as with plate fixation in many cases despite fewer complications, better cosmesis, and shorter operative times with IMN. IMN for diaphyseal forearm fractures is a useful treatment option even in adolescents although the indications for the best procedure to perform should be considered depending on individual patient needs. LEVEL OF EVIDENCE IV Multicenter retrospective study.
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Affiliation(s)
- Noriko Ishihara
- Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Katsuhiro Tokutake
- Department of Hand Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan.
| | - Yasuhiko Takegami
- Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Yuta Asami
- Department of Hand Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Hiroaki Kumagai
- Department of Orthopaedic Surgery, Nagoya Ekisaikai Hospital, 4-66 Shonen-cho, Nakagawa-ku, Nagoya, 454-8502, Japan
| | - Hideyuki Ota
- Department of Orthopaedic Surgery, Nagoya Ekisaikai Hospital, 4-66 Shonen-cho, Nakagawa-ku, Nagoya, 454-8502, Japan
| | - Yoshihiko Kimura
- Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Kazuma Ohshima
- Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Shiro Imagama
- Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
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Katsumata S, Hayashi Y, Oishi K, Tsukahara T, Inoue R, Obata A, Hirooka H, Kumagai H. Effects of liquefied sake lees on growth performance and faecal and blood characteristics in Japanese Black calves. Animal 2023; 17:100873. [PMID: 37399705 DOI: 10.1016/j.animal.2023.100873] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 05/29/2023] [Accepted: 06/01/2023] [Indexed: 07/05/2023] Open
Abstract
Liquefied sake lees, a by-product of Japanese sake, is rich in Saccharomyces cerevisiae, proteins, and prebiotics derived from rice and yeast. Previous studies have reported that Saccharomyces cerevisiae fermentation products improved the health, growth, and faecal characteristics of preweaning calves. This study investigated the effects of adding liquefied sake lees to milk replacer on the growth performance, faecal characteristics, and blood metabolites of preweaning Japanese Black calves from 6 to 90 days of age. Twenty-four Japanese Black calves at 6 days of age were randomly assigned to one of three treatments: No liquefied sake lees (C, n = 8), 100 g/d (on a fresh matter basis) liquefied sake lees mixed with milk replacer (LS, n = 8), and 200 g/d (on a fresh matter basis) liquefied sake lees mixed with milk replacer (HS, n = 8). The intake of milk replacer and calf starter, as well as, the average daily gain did not differ between the treatments. The number of days counted with faecal score 1 in LS was higher than in HS (P < 0.05), while the number of days with diarrhoea medication in LS and C was lower than HS (P < 0.05). The faecal n-butyric acid concentration tended to be higher in LS compared to C (P = 0.060). The alpha diversity index (Chao1) was higher in HS than in C and LS at 90 days of age (P < 0.05). The principal coordinate analysis (PCoA) using weighted UniFrac distance showed that the bacterial community structures in faeces among the treatments at 90 days of age were significantly different (P < 0.05). The plasma β-hydroxybutyric acid concentration, an indicator of rumen development, was higher for LS than in C throughout the experiment (P < 0.05). These results suggested that adding liquefied sake lees up to 100 g/d (on a fresh matter basis) might promote rumen development in preweaning Japanese Black calves.
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Affiliation(s)
- S Katsumata
- Department of Applied Biosciences, Graduate School of Agriculture, Kyoto University, Sakyo, Kyoto 606-8502, Japan; Graduate School of Environmental, Life, Natural Science and Technology, Okayama University, Tsushima-naka, Okayama 700-8530, Japan.
| | - Y Hayashi
- Shiga Prefectural Livestock Production Technology Promotion Center, Hino, Shiga 529-1651, Japan
| | - K Oishi
- Department of Applied Biosciences, Graduate School of Agriculture, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - T Tsukahara
- Kyoto Institute of Nutrition and Pathology, Ujitawara, Kyoto 610-0231, Japan
| | - R Inoue
- Department of Applied Biological Sciences, Faculty of Agriculture, Setsunan University, Hirakata, Osaka 573-0101, Japan
| | - A Obata
- Shiga Prefectural Livestock Production Technology Promotion Center, Hino, Shiga 529-1651, Japan
| | - H Hirooka
- Department of Applied Biosciences, Graduate School of Agriculture, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - H Kumagai
- Department of Applied Biosciences, Graduate School of Agriculture, Kyoto University, Sakyo, Kyoto 606-8502, Japan
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Tajima K, Nomura T, Terada T, Okuyama S, Kumagai H, Maeda K, Ogata S, Naiki H. Solitary follicular lymphoma with plasmacytic differentiation associated with localized AL amyloidosis in the jejunum. Ann Hematol 2023; 102:1625-1627. [PMID: 37020033 DOI: 10.1007/s00277-023-05207-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 03/29/2023] [Indexed: 04/07/2023]
Affiliation(s)
- Katsushi Tajima
- Department of Hematology, Yamagata Prefectural Central Hospital, Yamagata, 990-2292, Japan.
| | - Takashi Nomura
- Department of Surgery, Yamagata Prefectural Central Hospital, Yamagata, 990-2292, Japan
| | - Taichi Terada
- Department of Hematology, Yamagata Prefectural Central Hospital, Yamagata, 990-2292, Japan
| | - Shuhei Okuyama
- Department of Hematology, Yamagata Prefectural Central Hospital, Yamagata, 990-2292, Japan
| | - Hiroaki Kumagai
- Department of Hematology, Yamagata Prefectural Central Hospital, Yamagata, 990-2292, Japan
| | - Kunihiko Maeda
- Department of Pathology, Yamagata Prefectural Central Hospital, Yamagata, 990-2292, Japan
| | - Shinya Ogata
- Department of Pathology, Yamagata Prefectural Central Hospital, Yamagata, 990-2292, Japan
| | - Hironobu Naiki
- Department of Pathological Sciences, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
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Sakurai S, Takegami Y, Tokutake K, Kuwahara Y, Shibata R, Ota H, Kumagai H, Imagama S. Are the Clinical Results of Locking Plate Fixation for Distal Radius Fractures Inferior in Patients over 80 Years of Age? A Multicentre (TRON Group) Study. Indian J Orthop 2023; 57:117-123. [PMID: 36660494 PMCID: PMC9789222 DOI: 10.1007/s43465-022-00788-0] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 11/26/2022] [Indexed: 12/12/2022]
Abstract
Introduction With the aging of the population, the proportion of distal radius fracture patients who are > 80 years of age is increasing. In this study, we compared the postoperative clinical and radiographic outcomes between super-elderly patients (age: ≥ 80 years) and middle-elderly (age: 65-79 years) who were treated with volar locking plate (VLP) fixation for distal radius fractures. Patients and Methods Patients of > 65 years of age with distal radius fractures treated by VLP fixation between 2015 and 2019, and who were followed for at least 6 months after surgery were included in our database (named TRON). Patients with open fractures, multiple-trauma, or who received fixation with implants other than a VLP were excluded. We evaluated postoperative complications, Mayo wrist score (MWS), and radiographic outcomes. Results We identified 589 patients in this study; 452 were 65-79 years of age (Group A) and 137 were ≥ 80 years of age (Group B). After propensity score matching, we evaluated 309 patients in Group A and 103 patients in Group B. The mean follow-up period was 10.7 ± 4.6 months. Twenty-eight patients (9.1%) in Group A and 5 patients in Group B (4.9%) experienced post-operative complications (non-significant: p = 0.212). The postoperative MWS at 1, 3, and 6 months, respectively, was 65.4 ± 11.7, 75.2 ± 11.0, and 79.6 ± 10.5 in Group A and 67.1 ± 9.61, 75.7 ± 10.7, and 80.6 ± 9.7 in Group B (non-significant: p = 0.418, 0.893, 0.452, respectively). The differences in volar tilt, radial inclination, ulnar variance between the postoperative and last follow-up radiographs did not differ between the two groups to a statistically significant extent (p = 0.053, 0.437, 0.529, respectively). Conclusion Our study showed that the clinical and radiographic outcomes of distal radius fractures treated with VLP in super-elderly patients were comparable to those in middle-elderly patients.
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Affiliation(s)
- Saki Sakurai
- Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550 Japan
| | - Yasuhiko Takegami
- Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550 Japan
| | - Katsuhiro Tokutake
- Department of Hand Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550 Japan
| | - Yutaro Kuwahara
- Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550 Japan
| | - Ryutaro Shibata
- Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550 Japan
| | - Hideyuki Ota
- Department of Orthopaedic Sugery, Nagoya Ekisaikai Hospital, 4-66 Matunen-cho, Nakagawa-ku, Nagoya, 454-8502 Japan
| | - Hiroaki Kumagai
- Department of Orthopaedic Sugery, Nagoya Ekisaikai Hospital, 4-66 Matunen-cho, Nakagawa-ku, Nagoya, 454-8502 Japan
| | - Shiro Imagama
- Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550 Japan
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Urakawa M, Zhuang T, Sato H, Takanashi S, Yoshimura K, Endo Y, Katsura T, Umino T, Tanaka K, Watanabe H, Kobayashi H, Takada N, Kozutsumi T, Kumagai H, Asano T, Sazawa K, Ashida N, Zhao G, Rose MT, Kitazawa H, Shirakawa H, Watanabe K, Nochi T, Nakamura T, Aso H. Prevention of mastitis in multiparous dairy cows with a previous history of mastitis by oral feeding with probiotic Bacillus subtilis. Anim Sci J 2022; 93:e13764. [PMID: 36085592 PMCID: PMC9541589 DOI: 10.1111/asj.13764] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 07/13/2022] [Accepted: 08/01/2022] [Indexed: 11/27/2022]
Abstract
Mastitis is a very common inflammatory disease of the mammary gland of dairy cows, resulting in a reduction of milk production and quality. Probiotics may serve as an alternative to antibiotics to prevent mastitis, and the use of probiotics in this way may lessen the risk of antibiotic resistant bacteria developing. We investigated the effect of oral feeding of probiotic Bacillus subtilis (BS) C‐3102 strain on the onset of mastitis in dairy cows with a previous history of mastitis. BS feeding significantly decreased the incidence of mastitis, the average number of medication days and the average number of days when milk was discarded, and maintained the mean SCC in milk at a level substantially lower than the control group. BS feeding was associated with lower levels of cortisol and TBARS and increased the proportion of CD4+ T cells and CD11c+ CD172ahigh dendritic cells in the blood by flow cytometry analysis. Parturition increased the migrating frequency of granulocytes toward a milk chemoattractant cyclophilin A in the control cows, however, this was reduced by BS feeding, possibly indicating a decreased sensitivity of peripheral granulocytes to cyclophilin A. These results reveal that B. subtilis C‐3102 has potential as a probiotic and has preventative capacity against mastitis in dairy cows.
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Affiliation(s)
- Megumi Urakawa
- International Education and Research Center for Food and Agricultural Immunology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.,Laboratory of Animal Health Science, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.,Laboratory of Animal Functional Morphology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Tao Zhuang
- International Education and Research Center for Food and Agricultural Immunology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.,Laboratory of Animal Health Science, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.,Laboratory of Animal Functional Morphology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Hidetoshi Sato
- Miyagi Prefectural Livestock Experiment Station, Osaki, Japan
| | - Satoru Takanashi
- International Education and Research Center for Food and Agricultural Immunology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.,Laboratory of Animal Functional Morphology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Kozue Yoshimura
- International Education and Research Center for Food and Agricultural Immunology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.,Laboratory of Animal Health Science, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.,Laboratory of Animal Functional Morphology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Yuma Endo
- International Education and Research Center for Food and Agricultural Immunology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.,Laboratory of Animal Health Science, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.,Laboratory of Animal Functional Morphology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Teppei Katsura
- International Education and Research Center for Food and Agricultural Immunology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.,Laboratory of Animal Health Science, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.,Laboratory of Animal Functional Morphology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Tsuyoshi Umino
- International Education and Research Center for Food and Agricultural Immunology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.,Laboratory of Animal Functional Morphology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Koutaro Tanaka
- International Education and Research Center for Food and Agricultural Immunology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.,Laboratory of Animal Functional Morphology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Hitoshi Watanabe
- Laboratory of Animal Functional Morphology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | | | - Naokazu Takada
- Miyagi Prefectural Livestock Experiment Station, Osaki, Japan
| | | | - Hiroaki Kumagai
- Miyagi Prefectural Livestock Experiment Station, Osaki, Japan
| | - Takafumi Asano
- Miyagi Prefectural Livestock Experiment Station, Osaki, Japan
| | - Kohko Sazawa
- Miyagi Prefectural Livestock Experiment Station, Osaki, Japan
| | - Nobuhisa Ashida
- Laboratory of Animal Health Science, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Guoqi Zhao
- Institute of Animal Culture Collection and Application, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Michael T Rose
- Tasmanian Institute of Agriculture, University of Tasmania, Sandy Bay, Tasmania, Australia
| | - Haruki Kitazawa
- International Education and Research Center for Food and Agricultural Immunology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.,Laboratory of Animal Health Science, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.,Laboratory of Animal Food Function, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Hitoshi Shirakawa
- International Education and Research Center for Food and Agricultural Immunology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.,Laboratory of Animal Health Science, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.,Laboratory of Nutrition, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Kouichi Watanabe
- International Education and Research Center for Food and Agricultural Immunology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.,Laboratory of Animal Health Science, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.,Laboratory of Animal Functional Morphology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Tomonori Nochi
- International Education and Research Center for Food and Agricultural Immunology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.,Laboratory of Animal Health Science, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.,Laboratory of Animal Functional Morphology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Takehiko Nakamura
- International Education and Research Center for Food and Agricultural Immunology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.,Laboratory of Animal Health Science, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - Hisashi Aso
- International Education and Research Center for Food and Agricultural Immunology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.,Laboratory of Animal Health Science, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.,Laboratory of Animal Functional Morphology, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.,The Cattle Museum, Maesawa, Oshu, Japan
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Yamamoto M, Suzuki I, Saitou K, Tsumanuma R, Okuyama S, Kumagai H, Omoto E, Satoh S, Tajima K. Impact of comorbidity and relative dose intensity on outcomes in diffuse large B-cell lymphoma patients treated with R-CHOP. J Cancer Res Clin Oncol 2020; 146:2995-3002. [DOI: 10.1007/s00432-020-03279-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 05/30/2020] [Indexed: 12/21/2022]
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9
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Koma H, Yamamoto Y, Kumagai H, Yagami T. 4,4-Diisothiocyanatostilbene Disulfonic Acid Enhanced 15-Deoxy-Δ 12,14-prostaglandin J 2-Induced Neuronal Apoptosis. Biol Pharm Bull 2019; 42:1913-1920. [PMID: 31685774 DOI: 10.1248/bpb.b19-00536] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
4,4-Diisothiocyanatostilbene disulfonic acid (DIDS), an antagonist of anion channel including voltage-dependent anion channel (VDAC), acts as both neurotoxicant and neuroprotectant, resulting in the controversy. VDAC contributes to neuronal apoptosis and is a candidate target protein of 15-deoxy-Δ12,14-prostaglandin J2 (15d-PGJ2). Caspase-3 is activated during neuronal apoptosis caused by 15d-PGJ2. In the present study, we ascertained whether DIDS was neuroprotective or neurotoxic in the primary culture of rat cortical neurons. Neuronal cell viabilities were primarily evaluated by the 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H tetrazolium bromide (MTT) reduction assay. Plasma membrane integrity and apoptosis were detected by the staining of propidium iodide (PI) and Hoechst33342, respectively. Alternatively, apoptosis was also measured by caspase-3 assay kit. DIDS did not prevent neurons from undergoing the 15d-PGJ2-induced apoptosis. In contrast, DIDS caused neuronal cell death in a concentration-dependent manner by itself, confirming its neurotoxicity. The sublethal application of DIDS did not decrease MTT-reducing activity, increase caspase-3 activity, condense chromatin, allow PI to enter neuron and degenerate neuronal morphology significantly. Interestingly, DIDS enhanced the 15d-PGJ2-induced neuronal apoptosis markedly under the sublethal condition. To our knowledge, this is the first report of synergistic effects of DIDS on the neurotoxicity of 15d-PGJ2.
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Affiliation(s)
- Hiromi Koma
- Division of Physiology, Department of Pharmaceutical Health Care, Faculty of Pharmaceutical Sciences, Himeji Dokkyo University (HDU)
| | - Yasuhiro Yamamoto
- Division of Physiology, Department of Pharmaceutical Health Care, Faculty of Pharmaceutical Sciences, Himeji Dokkyo University (HDU)
| | - Hiroaki Kumagai
- Division of Physiology, Department of Pharmaceutical Health Care, Faculty of Pharmaceutical Sciences, Himeji Dokkyo University (HDU)
| | - Tatsurou Yagami
- Division of Physiology, Department of Pharmaceutical Health Care, Faculty of Pharmaceutical Sciences, Himeji Dokkyo University (HDU)
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10
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Nagao T, Yasunishi K, Kumagai H, Kodani E, Kimura K. Correlation between warfarin control and daily vitamin K intake: The difference among VKORC1 genotype. J Neurol Sci 2019. [DOI: 10.1016/j.jns.2019.10.529] [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: 10/25/2022]
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11
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Tajima K, Takizawa K, Yasuda T, Tsumanuma R, Okuyama S, Kumagai H, Omoto E, Okumura W. Characterization of reemergent anti-B red blood cell antibodies in a patient with recurrent acute myeloid leukemia with ABO-incompatible allogeneic peripheral blood stem cell transplantation. Transfusion 2019; 59:3319-3323. [PMID: 31503348 DOI: 10.1111/trf.15510] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 08/15/2019] [Accepted: 08/16/2019] [Indexed: 11/28/2022]
Abstract
BACKGROUND Isohemagglutinins against ABO antigens absent on both recipient and donor red blood cells (RBCs) increase or decrease after ABO-incompatible hematopoietic stem cell transplantation (HSCT). However, few reports have described the changes in the isohemagglutinin titers and the characteristics in patients with recurrent hematologic conditions after ABO-incompatible HSCT. CASE REPORT A 59-year-old female with acute erythroid leukemia received a peripheral blood stem cell transplant from her HLA-haploidentical daughter. The patient was typed as group O with anti- A (4+) and B (4+) isohemagglutinins, while the donor was typed as group B. The bone marrow cells achieved complete donor cell chimerism on Day 13 after HSCT. On Day 120, the patient showed 97% B RBC type with persistent anti-A (3+) and without anti-B antibodies. On Day 375, her leukemia relapsed, and recipient type O RBCs and anti-B antibodies sequentially reemerged. However, clinicolaboratory hemolysis and erythroid aplasia were not detected in the patient. RESULTS The post-HSCT sera agglutinated the allo B RBCs, but not the donor B RBCs, while the pre-HSCT sera agglutinated both RBCs. The burst-forming/colony-forming units of erythroid formation from the donor peripheral blood stem cells were impaired by only the pre-HSCT sera and not by the post-HSCT sera. CONCLUSION To our knowledge, this is the first report investigating the characteristic changes of isohemagglutinins between the pre- and post-HSCT sera in a patient with recurrent acute myeloid leukemia. The present study suggests that the plasma cells producing anti-donor B RBCs in the patient have been selectively eliminated or induced into an anergic state by the post-HSCT immunologic reconstruction.
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Affiliation(s)
- Katsushi Tajima
- Department of Hematology, Yamagata Prefectural Central Hospital, Yamagata, Japan.,Research Center for Radiation Emergency Medicine, National Institute of Radiological Sciences, Chiba, Japan
| | - Kazuya Takizawa
- Research Center for Radiation Emergency Medicine, National Institute of Radiological Sciences, Chiba, Japan
| | - Takeshi Yasuda
- Research Center for Radiation Emergency Medicine, National Institute of Radiological Sciences, Chiba, Japan
| | - Riko Tsumanuma
- Department of Hematology, Yamagata Prefectural Central Hospital, Yamagata, Japan
| | - Shuhei Okuyama
- Department of Hematology, Yamagata Prefectural Central Hospital, Yamagata, Japan
| | - Hiroaki Kumagai
- Department of Hematology, Yamagata Prefectural Central Hospital, Yamagata, Japan
| | - Eijiro Omoto
- Department of Hematology, Yamagata Prefectural Central Hospital, Yamagata, Japan
| | - Wataru Okumura
- Department of Laboratory Medicine, Yamagata Prefectural Central Hospital, Yamagata, Japan
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12
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Wang L, Setoguchi A, Oishi K, Sonoda Y, Kumagai H, Irbis C, Inamura T, Hirooka H. PSVII-22 Environmental assessment of 36 intensive dairy farms in the Southwestern China based on life cycle assessment. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- L Wang
- Yangzhou University,Yangzhou, China (People’s Republic)
| | | | - K Oishi
- Kyoto University,Kyoto, Japan
| | | | | | - C Irbis
- Kunming University of Science and Technology,Yunnan, China (People’s Republic)
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13
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Tagawa K, Ra SG, Kumagai H, Yoshikawa T, Yoshida Y, Takekoshi K, Sakai S, Miyauchi T, Maeda S. Effects of resistance training on arterial compliance and plasma endothelin-1 levels in healthy men. Physiol Res 2018; 67:S155-S166. [PMID: 29947536 DOI: 10.33549/physiolres.933818] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Arterial compliance (AC) is an index of the elasticity of large arteries. Endothelial dysfunction has been reported to result in reduced arterial compliance, which represents increased arterial stiffness. A reduction in AC is elicited by high-intensity resistance training, however the mechanisms are obscure. Because a single bout of resistance exercise causes a transient increase in circulating plasma endothelin-1 in humans, some vasoconstrictors may play a role in the mechanisms. The present study aimed to investigate whether resistance training-induced decrease in AC is associated with changes in circulating vasoconstrictors levels in young men. Young sedentary men were assigned to control (n=5) or training (n=9) groups. The training group performed four-week high-intensity resistance training (weight training exercise; three sessions/week). We measured AC and plasma levels of endothelin-1, angiotensin II, and norepinephrine before and after intervention. Resistance training significantly decreased AC, whereas the changes in plasma levels of neither endothelin-1, nor angiotensin II, nor norepinephrine were significantly different between the control and the training groups. Moreover, we found no significant correlations between changes in circulating plasma levels (endothelin-1, angiotensin II, and norepinephrine) and in the AC. Despite of no alteration of the resting circulating plasma levels (endothelin-1, etc.), we cannot exclude a possibility that the tissue/local concentrations of vasoconstrictors (endothelin-1, etc.) around the vessels might be increased and also involved in a reduction of AC in the training group. Taken together, the present results suggest that circulating vasoconstrictors (endothelin-1, etc.) in plasma are not involved in a reduction in AC by the resistance training.
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Affiliation(s)
- K Tagawa
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, Japan, Division of Sports Medicine, Faculty of Health and Sport Science, University of Tsukuba, Japan.
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14
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Tajima K, Terada T, Okuyama S, Akaneya D, Hori R, Abe S, Osakabe M, Kumagai H, Tsumanuma R, Omoto E, Ito J, Gonoi T. Nocardia otitidiscaviarum meningitis in a diffuse large B-cell lymphoma patient with CD4-positive lymphocytopenia and persistent oligoclonal CD8-positive lymphocytes in the peripheral blood. Int J Clin Exp Pathol 2018; 11:455-461. [PMID: 31938131 PMCID: PMC6957946] [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] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 11/03/2017] [Indexed: 06/10/2023]
Abstract
Nocardiosis, sometimes presenting with multiple granulomatous lesions, is a rare opportunistic infection occurring in immunocompromised patients. However, its immunological features remain largely unaddressed. We investigated the immunological characteristics of human nocardiosis and examined the component cells of the granulomatous lesions. A 66-year-old man with diffuse large B-cell lymphoma presented with fever and multiple nodules in the lung during chemotherapy. The blood culture formed white colonies, but their characterization was difficult by routine microbiological laboratory methods. Matrix-assisted laser desorption ionization-time of flight mass spectrometry identified the colonies as Nocardia otitidiscaviarum. Meanwhile, the patient suddenly experienced an epileptic seizure without a brain abscess. His cerebrospinal fluid (CSF) showed neutrophilic pleocytosis (108/mm3). The conventional agar culturing failed to isolate colonies, but culturing with brain-heart infusion agar generated colonies. These colonies were completely concordant with those from the blood, as confirmed by 16S rRNA gene sequencing. Therefore, the patient had developed meningitis through sepsis induced by N. otitidiscaviarum. His CD4-positive T-lymphocyte counts were low, and oligoclonal CD8-positive αβ T-lymphocytes were present in the blood prior to the first and after three cycles of chemotherapy. He had bone marrow granulomatous lesions comprising lymphoma and CD8-positive αβ T-cells. Treatment with sulfamethoxazole/trimethoprim relieved all of his symptoms. The combined analysis by microbiological and molecular methods determined the cause of his epileptic seizure. His immunological characteristics, including low CD4-positive or CD8-positive αβ T-lymphocytes, may have contributed to the unusual clinical presentations by N. otitidiscaviarum, which rarely involves the central nervous system.
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Affiliation(s)
- Katsushi Tajima
- Department of Hematology, Yamagata Prefectural Central HospitalYamagata-Shi, Yamagata, Japan
| | - Taichi Terada
- Department of Hematology, Yamagata Prefectural Central HospitalYamagata-Shi, Yamagata, Japan
| | - Shuhei Okuyama
- Department of Hematology, Yamagata Prefectural Central HospitalYamagata-Shi, Yamagata, Japan
| | - Daisuke Akaneya
- Department of Laboratory Medicine, Yamagata Prefectural Central HospitalYamagata-Shi, Yamagata, Japan
| | - Ryuichiro Hori
- Department of Laboratory Medicine, Yamagata University, (Yamagata University) HospitalYamagata-Shi, Yamagata, Japan
| | - Shuichi Abe
- Department of Infectious Diseases, Yamagata Prefectural Central HospitalYamagata-Shi, Yamagata, Japan
| | - Mitsumasa Osakabe
- Department of Pathology, Yamagata Prefectural Central HospitalYamagata-Shi, Yamagata, Japan
| | - Hiroaki Kumagai
- Department of Hematology, Yamagata Prefectural Central HospitalYamagata-Shi, Yamagata, Japan
| | - Riko Tsumanuma
- Department of Hematology, Yamagata Prefectural Central HospitalYamagata-Shi, Yamagata, Japan
| | - Eijiro Omoto
- Department of Hematology, Yamagata Prefectural Central HospitalYamagata-Shi, Yamagata, Japan
| | - Junko Ito
- Medical Mycology Research Center, Chiba UniversityChuo-Ku, Chiba, Japan
| | - Tohru Gonoi
- Medical Mycology Research Center, Chiba UniversityChuo-Ku, Chiba, Japan
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15
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Okuyama S, Terada T, Kumagai H, Tsumanuma R, Omoto E, Ueki T, Yanagawa N, Maeda K, Tajima K. Epstein-Barr virus clonality and plasmacytosis in a patient with atypical angioimmunoblastic T cell lymphoma. Ann Hematol 2017; 97:537-539. [PMID: 29189897 DOI: 10.1007/s00277-017-3189-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 11/17/2017] [Indexed: 11/26/2022]
MESH Headings
- Aged, 80 and over
- Antigens, CD/analysis
- Antigens, Neoplasm/analysis
- B-Lymphocytes/pathology
- B-Lymphocytes/virology
- Bone Marrow/pathology
- Clone Cells/pathology
- Clone Cells/virology
- Diagnosis, Differential
- Epstein-Barr Virus Infections/blood
- Epstein-Barr Virus Infections/pathology
- Fatal Outcome
- Gene Rearrangement, B-Lymphocyte, Heavy Chain
- Gene Rearrangement, beta-Chain T-Cell Antigen Receptor
- Herpesvirus 4, Human/isolation & purification
- Humans
- Immunoblastic Lymphadenopathy/blood
- Immunoblastic Lymphadenopathy/diagnosis
- Immunoblastic Lymphadenopathy/pathology
- Immunoblastic Lymphadenopathy/virology
- Lymph Nodes/pathology
- Lymphoma, Large B-Cell, Diffuse/diagnosis
- Lymphoma, T-Cell/blood
- Lymphoma, T-Cell/diagnosis
- Lymphoma, T-Cell/pathology
- Lymphoma, T-Cell/virology
- Male
- Neoplastic Stem Cells/pathology
- Neoplastic Stem Cells/virology
- Plasma Cells/pathology
- Plasma Cells/virology
- T-Lymphocytes/pathology
- T-Lymphocytes/virology
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Affiliation(s)
- Shuhei Okuyama
- Department of Hematology, Yamagata Prefectural Central Hospital, Yamagata, 990-2292, Japan
| | - Taichi Terada
- Department of Hematology, Yamagata Prefectural Central Hospital, Yamagata, 990-2292, Japan
| | - Hiroaki Kumagai
- Department of Hematology, Yamagata Prefectural Central Hospital, Yamagata, 990-2292, Japan
| | - Riko Tsumanuma
- Department of Hematology, Yamagata Prefectural Central Hospital, Yamagata, 990-2292, Japan
| | - Eijiro Omoto
- Department of Hematology, Yamagata Prefectural Central Hospital, Yamagata, 990-2292, Japan
| | - Tetsuya Ueki
- Department of Laboratory Medicine, Yamagata Prefectural Central Hospital, Yamagata, Japan
| | - Naoki Yanagawa
- Department of Pathology, Yamagata Prefectural Central Hospital, Yamagata, Japan
| | - Kunihiko Maeda
- Yamagata Prefectural University of Health Sciences, Yamagata, Japan
| | - Katsushi Tajima
- Department of Hematology, Yamagata Prefectural Central Hospital, Yamagata, 990-2292, Japan.
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16
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Miwa M, Oishi K, Anzai H, Kumagai H, Ieiri S, Hirooka H. Estimation of the energy expenditure of grazing ruminants by incorporating dynamic body acceleration into a conventional energy requirement system. J Anim Sci 2017; 95:901-909. [PMID: 28380599 DOI: 10.2527/jas.2016.0749] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The estimation of energy expenditure (EE) of grazing animals is of great importance for efficient animal management on pasture. In the present study, a method is proposed to estimate EE in grazing animals based on measurements of body acceleration of animals in combination with the conventional Agricultural and Food Research Council (AFRC) energy requirement system. Three-dimensional body acceleration and heart rate were recorded for tested animals under both grazing and housing management. An acceleration index, vectorial dynamic body acceleration (VeDBA), was used to calculate activity allowance (AC) during grazing and then incorporate it into the AFRC system to estimate the EE (EE derived from VeDBA [EE]) of the grazing animals. The method was applied to 3 farm ruminant species (7 cattle, 6 goats, and 4 sheep). Energy expenditure based on heart rate (EE) was also estimated as a reference. The result showed that larger VeDBA and heart rate values were obtained under grazing management, resulting in greater EE and EE under grazing management than under housing management. There were large differences between the EE estimated from the 2 methods, where EE values were greater than EE (averages of 163.4 and 142.5% for housing and grazing management, respectively); the EE was lower than the EE, whereas the increase in EE under grazing in comparison with housing conditions was larger than that in EE. These differences may have been due to the use of an equation for estimating EE derived under laboratory conditions and due to the presence of the effects of physiological, psychological, and environmental factors in addition to physical activity being included in measurements for the heart rate method. The present method allowed us to separate activity-specific EE (i.e., AC) from overall EE, and, in fact, AC under grazing management were about twice times as large as those under housing management for farm ruminant animals. There is evidence that the conventional energy system can predict fasting metabolism and the AC of housed animals based on accumulated research on energy metabolism and that VeDBA can quantify physical activity separately from other factors in animals on pasture. Therefore, the use of the VeDBA appears to be a precise way to predict activity-specific EE under grazing conditions, and the method incorporating acceleration index data with a conventional energy system can be a simple and useful method for estimation of EE in farm ruminants on pastures.
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17
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Miwa M, Oishi K, Anzai H, Kumagai H, Ieiri S, Hirooka H. Estimation of the energy expenditure of grazing ruminants by incorporating dynamic body acceleration into a conventional energy requirement system. J Anim Sci 2017. [DOI: 10.2527/jas2016.0749] [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: 11/13/2022] Open
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18
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Abstract
We evaluated the brain lesions of patients with chronic alcoholism (n = 34) in comparison with age- and sex-matched controls (n = 40) by MR imaging. T1-weighted sagittal and axial images and T2-weighted axial images were obtained with a 0.5 T superconducting MR unit. Various brain measurements were then performed, and the presence of regions of abnormal signal intensity was also compared between the two groups. The brain measurements revealed significant cerebral atrophy (characterized by lateral and 3rd ventricular dilatation, and widening of the interhemispheric fissure) as well as significant cerebellar atrophy (represented by 4th ventricular dilatation) in the alcoholic group. These changes were more prominent in patients in their fifties and sixties than in those aged in the thirties and forties. Focal hypointense lesions were observed in 20.6% of the alcoholics and in 5% of the controls (p < 0.01), while focal hyperintense lesions were observed in 61.8% of the alcoholics and in 20% of the controls (p < 0.001). The severity of these MR findings correlated well with the age of the patients. These observations suggest that alcohol is an important promotor of brain aging.
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19
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Kumagai H, Fueki K, Yoshida-Kohno E, Wakabayashi N. Factors associated with mucosal pain in patients with partial removable dental prostheses. J Oral Rehabil 2016; 43:683-91. [PMID: 27289212 DOI: 10.1111/joor.12417] [Citation(s) in RCA: 6] [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] [Accepted: 05/22/2016] [Indexed: 01/27/2023]
Abstract
The aim of this study was to investigate factors associated with mucosal pain in patients with partial removable dental prostheses (PRDPs). In this hospital-based cross-sectional study, 333 patients wearing 500 PRDPs (mean age 71·4 years, men 33·3%) were consecutively recruited from prosthetic clinic of a dental hospital in Japan. Subjects rated pain intensity and frequency of denture-bearing mucosa. An examiner recorded age, gender and systemic diseases as well as dental, mucosa, denture, sensory, behavioural- and psychological-related characteristics that were possibly associated with the mucosal pain. Multivariate analyses were performed to analyse factors related to mucosal pain. Pain intensity was rated as more than score 0 (presence) in 34·2% (171/500) PRDPs, and pain was experienced after denture delivery in 42·8% (214/500) PRDPs. Logistic regression analyses showed that younger age, mucosal damage, poor mucosal condition, bone prominence, poor residual ridge, higher pain sensitivity, presence of awake bruxism, perception of oral dryness, interim denture wear and high number of missing teeth were significant independent predictors for the presence of the mucosal pain intensity and/or frequency (P < 0·05). Multiple factors are associated with mucosal pain in patients with PRDPs. Oral mucosal characteristics, age, pain sensitivity and behavioural factors seem to be more critical for mucosal pain than distribution of missing teeth and number of abutment teeth.
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Affiliation(s)
- H Kumagai
- Tokyo Medical and Dental University - Removable Partial Prosthodontics, Tokyo, Japan
| | - K Fueki
- Tokyo Medical and Dental University - Removable Partial Prosthodontics, Tokyo, Japan
| | - E Yoshida-Kohno
- Tokyo Medical and Dental University - Removable Partial Prosthodontics, Tokyo, Japan
| | - N Wakabayashi
- Tokyo Medical and Dental University - Removable Partial Prosthodontics, Tokyo, Japan
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Nio K, Higashi D, Kumagai H, Arita S, Shirakawa T, Nakashima K, Shibata Y, Esaki M, Ueki T, Nakano M, Ariyama H, Kusaba H, Hirahashi M, Oda Y, Esaki T, Mitsugi K, Futami K, Akashi K, Baba E. 176P Safety analysis of chemotherapy for colitis-associated colorectal cancer in Japan. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv523.37] [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: 11/13/2022] Open
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21
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Shirakawa T, Nakano M, Nio K, Tamura S, Kumagai H, Komoda M, Uchino K, Arita S, Ariyama H, Shibata Y, Kusaba H, Akashi K, Baba E. 520P Retrospective analysis of cardiovascular diseases in chemotherapies for advanced solid tumor patients in a single institution. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv535.15] [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: 11/12/2022] Open
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22
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23
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Iketaki Y, Oi H, Bokor N, Kumagai H. Note: Fabrication of resolution target for super-resolution microscopy. Rev Sci Instrum 2015; 86:086109. [PMID: 26329249 DOI: 10.1063/1.4929711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We fabricated a resolution target for super-resolution microscopes (SRMs). The target was constructed by scattering a dyed photo-resist on a glass cover plate and used UV nano-imprinting to transfer minute line-and-space patterns on to the photo-resist layer. Using this resolution target, an image obtained from a SRM and its properties was evaluated quantitatively.
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Affiliation(s)
- Y Iketaki
- Olympus Corporation, 2-3 Kuboyama-cho, Hachioji 192-8512, Japan
| | - H Oi
- Kyodo International, Inc., 2-10-9, Miyazaki, Miyamae-ku, Kawasaki 216-0033, Japan
| | - N Bokor
- Department of Physics, Budapest University of Technology and Economics, Budafoki u. 8., Budapest 1111, Hungary
| | - H Kumagai
- Department of Medical Science, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara 252-0373, Japan
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24
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Oshima N, Onimaru H, Matsubara H, Uchida T, Watanabe A, Takechi H, Nishida Y, Kumagai H. Uric acid, indoxyl sulfate, and methylguanidine activate bulbospinal neurons in the RVLM via their specific transporters and by producing oxidative stress. Neuroscience 2015. [PMID: 26208844 DOI: 10.1016/j.neuroscience.2015.07.055] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [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: 12/22/2022]
Abstract
Patients with chronic renal failure often have hypertension, but the cause of hypertension, other than an excess of body fluid, is not well known. We hypothesized that the bulbospinal neurons in the rostral ventrolateral medulla (RVLM) are stimulated by uremic toxins in patients with chronic renal failure. To investigate whether RVLM neurons are sensitive to uremic toxins, such as uric acid, indoxyl sulfate, or methylguanidine, we examined changes in the membrane potentials (MPs) of bulbospinal RVLM neurons of Wister rats using the whole-cell patch-clamp technique during superfusion with these toxins. A brainstem-spinal cord preparation that preserved the sympathetic nervous system was used for the experiments. During uric acid, indoxyl sulfate, or methylguanidine superfusion, almost all the RVLM neurons were depolarized. To examine the transporters for these toxins on RVLM neurons, histological examinations were performed. The uric acid-, indoxyl sulfate-, and methylguanidine-depolarized RVLM neurons showed the presence of urate transporter 1 (URAT 1), organic anion transporter (OAT)1 or OAT3, and organic cation transporter (OCT)3, respectively. Furthermore, the toxin-induced activities of the RVLM neurons were suppressed by the addition of an anti-oxidation drug (VAS2870, an NAD(P)H oxidase inhibitor), and a histological examination revealed the presence of NAD(P)H oxidase (nox)2 and nox4 in these RVLM neurons. The present results show that uric acid, indoxyl sulfate, and methylguanidine directly stimulate bulbospinal RVLM neurons via specific transporters on these neurons and by producing oxidative stress. These uremic toxins may cause hypertension by activating RVLM neurons.
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Affiliation(s)
- N Oshima
- Department of Nephrology and Endocrinology, National Defense Medical College, Tokorozawa, Saitama, Japan.
| | - H Onimaru
- Department of Physiology, Showa University School of Medicine, Tokyo, Japan
| | - H Matsubara
- Department of Nephrology and Endocrinology, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - T Uchida
- Department of Nephrology and Endocrinology, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - A Watanabe
- Department of Nephrology and Endocrinology, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - H Takechi
- Department of Nephrology and Endocrinology, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - Y Nishida
- Department of Physiology, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - H Kumagai
- Department of Nephrology and Endocrinology, National Defense Medical College, Tokorozawa, Saitama, Japan
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25
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Saito G, Kumagai H, Katayama C, Tanaka C, Tanaka J, Wu P, Mori T, Imaeda K, Enoki T, Inokuchi H, Higuchi Y, Yasuoka N. Chemical and Physical Properties of Capped and Uncapped Alkylthio Substituted Tetrathiafulvalenes and Their Charge Transfer Complexes. Isr J Chem 2013. [DOI: 10.1002/ijch.198600049] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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26
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Yoshida T, Kumagai H, Suzuki A, Kobayashi N, Ohkawa S, Odamaki M, Kohsaka T, Yamamoto T, Ikegaya N. Relaxin ameliorates salt-sensitive hypertension and renal fibrosis. Nephrol Dial Transplant 2012; 27:2190-2197. [DOI: 10.1093/ndt/gfr618] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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27
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Koyanagi T, Kiyohara M, Matsui H, Yamamoto K, Kondo T, Katayama T, Kumagai H. Pyrosequencing survey of the microbial diversity of ‘narezushi’, an archetype of modern Japanese sushi. Lett Appl Microbiol 2011; 53:635-40. [DOI: 10.1111/j.1472-765x.2011.03155.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Kushiyama T, Oda T, Yamada M, Higashi K, Yamamoto K, Oshima N, Sakurai Y, Miura S, Kumagai H. Effects of liposome-encapsulated clodronate on chlorhexidine gluconate-induced peritoneal fibrosis in rats. Nephrol Dial Transplant 2011; 26:3143-54. [DOI: 10.1093/ndt/gfr068] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Nagamatsu A, Murakami K, Yokota A, Yamazaki J, Yamauchi M, Kitajo K, Kumagai H, Tawara H. Space radiation damage to HDTV camera CCDs onboard the international space station. RADIAT MEAS 2011. [DOI: 10.1016/j.radmeas.2010.11.016] [Citation(s) in RCA: 9] [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: 11/24/2022]
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Kumagai H, Tanaka Y, Murata M, Masuda Y, Shinagawa T. Novel TiO(2)/ZnO multilayer mirrors at 'water-window' wavelengths fabricated by atomic layer epitaxy. J Phys Condens Matter 2010; 22:474008. [PMID: 21386615 DOI: 10.1088/0953-8984/22/47/474008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We propose that novel oxide superlattice structures of crystalline TiO(2)/ZnO on sapphire substrates can be used for multilayer mirrors with high reflectivity at 2.734 nm. In the experimental study, both rutile TiO(2)(200) and wurtzite ZnO(001) thin films were grown epitaxially on the same sapphire (001) substrate by atomic layer epitaxy (ALE) at 450 °C. We also demonstrated that the novel oxide superlattice structure of 10-bilayer TiO(2)/ZnO on a sapphire substrate gave a high reflectivity of 29.4% at 2.74 nm.
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Affiliation(s)
- H Kumagai
- Faculty of Engineering, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka-shi, Osaka 558-8585, Japan
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Tohda H, Sasaki M, Tada A, Hara F, Idiris A, Kumagai H. Schizosaccharomyces pombe minimum genome factory. J Biotechnol 2010. [DOI: 10.1016/j.jbiotec.2010.09.826] [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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Yamamoto K, Tsuji Y, Matsushita S, Kumagai H, Tochikura T. Purification and Properties of beta-N-Acetylhexosaminidase from Mucor fragilis Grown in Bovine Blood. Appl Environ Microbiol 2010; 51:1019-23. [PMID: 16347047 PMCID: PMC239004 DOI: 10.1128/aem.51.5.1019-1023.1986] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Mucor fragilis grown on bovine blood powder as the sole carbon source abundantly produced beta-N-acetylhexosaminidase. The enzyme activity was several times higher than that of a culture obtained with glucose medium. The enzyme had two different molecular weight forms. The high-molecular-weight form had somewhat higher beta-N-acetylgalactosaminidase activity than the lower-molecular-weight enzyme which had beta-N-acetylgalactosaminidase activity equivalent to about 40% of its beta-N-acetylglucosaminidase activity. Bovine blood seemed to induce both enzymes, but N-acetylamino sugars specifically induced the low-molecular-weight form. N-Acetylgalactosamine had an especially marked effect on activity. The low-molecular-weight form of enzyme was purified from the culture filtrate by fractionation with ammonium sulfate and various column chromatographies. The purified enzyme was found to be homogeneous by polyacrylamide gel electrophoresis. The optimum pH was 4.0 to 5.0 for beta-N-acetylglucosaminidase activity and 5.5 to 6.5 for beta-N-acetylgalactosaminidase activity. The enzyme hydrolyzed natural substrates such as di-N-acetylchitobiose, tri-N-acetylchitotriose, and a glycopeptide obtained by modification of fetuin.
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Affiliation(s)
- K Yamamoto
- Department of Food Science and Technology, Faculty of Agriculture, Kyoto University, Kyoto 606, and Institute of Soy Sauce, Higashimaru Shoyu Co. Ltd., Tatsuno, Hyogo 679-41, Japan
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Ono R, Kumagai H, Nakajima H, Hishiya A, Taki T, Horikawa K, Takatsu K, Satoh T, Hayashi Y, Kitamura T, Nosaka T. Mixed-lineage-leukemia (MLL) fusion protein collaborates with Ras to induce acute leukemia through aberrant Hox expression and Raf activation. Leukemia 2009; 23:2197-209. [PMID: 19710696 DOI: 10.1038/leu.2009.177] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Mixed-lineage-leukemia (MLL) fusion oncogenes are closely involved in infant acute leukemia, which is frequently accompanied by mutations or overexpression of FMS-like receptor tyrosine kinase 3 (FLT3). Earlier studies have shown that MLL fusion proteins induced acute leukemia together with another mutation, such as an FLT3 mutant, in mouse models. However, little has hitherto been elucidated regarding the molecular mechanism of the cooperativity in leukemogenesis. Using murine model systems of the MLL-fusion-mediated leukemogenesis leading to oncogenic transformation in vitro and acute leukemia in vivo, this study characterized the molecular network in the cooperative leukemogenesis. This research revealed that MLL fusion proteins cooperated with activation of Ras in vivo, which was substitutable for Raf in vitro, synergistically, but not with activation of signal transducer and activator of transcription 5 (STAT5), to induce acute leukemia in vivo as well as oncogenic transformation in vitro. Furthermore, Hoxa9, one of the MLL-targeted critical molecules, and activation of Ras in vivo, which was replaceable with Raf in vitro, were identified as fundamental components sufficient for mimicking MLL-fusion-mediated leukemogenesis. These findings suggest that the molecular crosstalk between aberrant expression of Hox molecule(s) and activated Raf may have a key role in the MLL-fusion-mediated-leukemogenesis, and may thus help develop the novel molecularly targeted therapy against MLL-related leukemia.
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Affiliation(s)
- R Ono
- Division of Hematopoietic Factors, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
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Krum D, Hare J, Delavelle A, Soubelet E, Vaillant R, Belanger B, Choudhuri I, Sra J, Pandozi C, Dottori S, Ficili S, Galeazzi M, Lavalle C, Pandozi A, Russo M, Santini M, Berger T, Pehboeck D, Stuehlinger M, Dichtl W, Silye R, Takami M, Yoshida A, Fukuzawa K, Takami K, Kumagai H, Tanaka S, Itoh M, Hirata K, Ficili S, Pandozi C, Galeazzi M, Russo M, Lavalle C, Bernardi C, Amati F, Santini M, Tanaka S, Yoshida A, Fukuzawa K, Takami K, Kumagai H, Takami M, Itoh M, Hirata K, De Ponti R, Marazzi R, De Luca L, De Sanctis V, Caravati F, Panchetti L, Salerno-Uriarte JA, Luik A, Wondraschek R, Merkel M, Schmitt C, Marazzi R, De Ponti R, Lumia D, Lunardi L, Cremona V, Fugazzola C, Salerno-Uriarte JA, Pandozi C, Dottori S, Ficili S, Galeazzi M, Lavalle C, Russo M, Camastra GS, Santini M. Poster Session 1: New tools for ablation. Europace 2009. [DOI: 10.1093/europace/euq216] [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: 11/14/2022] Open
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Kanyinji F, Kumagai H, Maeda T, Kaneshima S, Yokoi D. Effects of supplementary inosine on nutrient digestibility, ruminal fermentation and nitrogen balance in goats fed high amount of concentrate. Anim Feed Sci Technol 2009. [DOI: 10.1016/j.anifeedsci.2009.03.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Potpara T, Grujic M, Ostojic M, Vujisic B, Polovina M, Mujovic N, Hatzinikolaou-Kotsakou E, Reppas E, Beleveslis TH, Moschos G, Kotsakou M, Tsakiridis K, Simeonidou E, Papandreou A, Tsigas G, Michalakeas C, Tsitlakidis C, Alexopoulos D, Lekakis J, Kremastinos DT, Poci D, Backmn L, Karlsson TH, Edvardsson N, Golzio PG, Vinci M, Amellone C, Jorfida M, Veglio V, Gaido E, Trevi GP, Bongiorni MG, Ding L, Hua WEI, Zhang SHU, Chen KEPING, Wang FZ, Chen XIN, Dokumaci B, Dokumaci AS, Ozyildirim S, Yolcu M, Uyan C, Nicolas-Franco S, Rodriguez Gonzalez J, Albacete-Moreno C, Ruiz-Villa G, Sanchez-Martos A, Bixquert-Genoves D, Skoczynski P, Gajek J, Zysko D, Porebska M, Josiak K, Mazurek W, Providencia RA, Silva J, Seca L, Gomes PL, Barra S, Mota P, Nascimento J, Leitao-Marques AM, Kikuchi Y, Brady PA, Erne P, Val-Mejias J, Schwab J, Schimpf R, Orlov M, Mattioni T, Amlie J, Sacher F, Lahitton B, Laborderie J, Wright M, Haissaguerre M, Berger T, Zwick R, Dichtl W, Stuehlinger M, Pachinger O, Hintringer F, Toli K, Koutras K, Stauropoulos J, Vichos S, Mantas J, Rodriguez Artuza CR, Hidalgo L JA, Garcia A, Fumero P, Perez A, Rangel I, Providencia RA, Silva J, Seca L, Gomes PL, Nascimento J, Leitao-Marques AM, Perl S, Stiegler P, Kollmann A, Rotman B, Lercher P, Anelli-Monti M, Tscheliessnigg KH, Pieske BM, Nakamura K, Naito S, Kumagai K, Goto K, Iwamoto J, Funabashi N, Oshima S, Komuro I, Toli K, Stavropoulos J, Koutras D, Vichos S, Mantas J, Di Biase L, Beheiry S, Hongo R, Horton R, Morganti K, Hao S, Javier Sanchez J, Natale A, Digby G, Parfrey B, Morriello F, Lim L, Hopman WM, Simpson CS, Redfearn DP, Baranchuk A, Madsen T, Schmidt EB, Toft E, Christensen JH, Patel D, Shaheen M, Sonne K, Mohanty P, Dibiase L, Horton RP, Sanchez JE, Natale A, Krynski T, Stec SM, Stanke A, Baszko A, Kulakowski P, Rondano E, Bortnik M, Occhetta E, Teodori G, Caimmi PP, Marino PN, Osmancik P, Peroutka Z, Herman D, Stros P, Budera P, Straka Z, Petrac D, Radeljic V, Delic-Brkljacic D, Manola S, Pavlovic N, Inama G, Pedrinazzi C, Adragao P, Arribas F, Landolina M, Merino JL, De Sousa J, Gulizia M, Neuzil P, Holy F, Skoda J, Petru J, Sediva L, Kralovec S, Brada J, Taborsky M, Takami M, Yoshida A, Fukuzawa K, Takami K, Kumagai H, Tanaka S, Itoh M, Hirata K, Jacques F, Champagne J, Doyle D, Charbonneau E, Dagenais F, Voisine P, Dumont E, Aboelhoda A, Nawar M, Khadragui I, Loutfi M, Ramadan B, Makboul G, Gianfranchi L, Pacchioni F, Bettiol K, Alboni P, Gallardo Lobo R, Pap R, Bencsik G, Makai A, Marton G, Saghy L, Forster T, Stockburger M, Trautmann F, Nitardy A, Just-Teetzmann M, Schade S, Celebi O, Krebs A, Dietz R, Pastore CA, Douglas RA, Samesima N, Martinelli Filho M, Nishioka SAD, Pastor Fuentes A, Perea J, Tur N, Berzal B, Boldt LH, Polotzki M, Posch MG, Perrot A, Lohse M, Rolf S, Ozcelik C, Haverkamp W, Tunyan LG, Grigoryan SV, Barsheshet A, Abu Sham'a R, Kuperstein R, Feinberg MS, Sandach A, Luria D, Eldar M, Glikson M, Vatasescu RG, Berruezo A, Iorgulescu C, Fruntelata A, Dorobantu M, Chaumeil A, Philippon F, O'hara G, Blier L, Molin F, Gilbert M, Champagne J, Paslawska U, Gajek J, Zysko D, Noszczyk-Nowak A, Skrzypczak P, Nicpon J, Mazurek W, Chevallier S, Van Oosterom A, Pruvot E, Iga A, Igarashi M, Itou H, Fujino T, Tsubota T, Yamazaki J, Yoshihara K, Arsenos P, Gatzoulis K, Dilaveris P, Gialernios T, Papaioannou T, Masoura K, Archontakis S, Stefanadis C, Nasr GM, Khashaba A, Osman H, El-Barbary M, Heinke M, Heinke T, Ismer B, Kuehnert H, Surber R, Figulla HR. Poster session 3: Miscellaneous. Europace 2009. [DOI: 10.1093/europace/euq230] [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: 11/13/2022] Open
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Kikuhara K, Kumagai H, Hirooka H. Development and Evaluation of a Simulation Model for Dairy Cattle Production Systems Integrated with Forage Crop Production. Asian Australas J Anim Sci 2009. [DOI: 10.5713/ajas.2009.80098] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Katafuchi R, Ninomiya T, Mizumasa T, Ikeda K, Kumagai H, Nagata M, Hirakata H. The improvement of renal survival with steroid pulse therapy in IgA nephropathy. Nephrol Dial Transplant 2008. [DOI: 10.1093/ndt/gfp090] [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: 11/14/2022] Open
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Tsukahara Y, Choumei Y, Oishi K, Kumagai H, Kahi AK, Panandam JM, Mukherjee TK, Hirooka H. Effect of parental genotypes and paternal heterosis on litter traits in crossbred goats. J Anim Breed Genet 2008; 125:84-8. [PMID: 18363973 DOI: 10.1111/j.1439-0388.2007.00692.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The effect of parental genotype and paternal heterosis on litter size (LS), total litter birth weight (TLW) and average litter birth weight (ALW) was analysed utilizing data from a crossbreeding programme involving the exotic German Fawn goats and local Katjang goats in Malaysia. In this study, these traits were regarded as traits of the litter to consider the effect of service sire genotype. The results revealed that LS was significantly influenced by the genotype of sire. The genotypes of sire and dam had significant effects on TLW and ALW. Estimates of crossbreeding parameter showed significant and negative influence of paternal heterosis on TLW and ALW while there was no significant effect of paternal heterosis on LS. The results of this study stress the need to reconsider the use of local males in the tropics.
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Affiliation(s)
- Y Tsukahara
- Laboratory of Animal Husbandry Resources, Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto-shi, Japan
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Irie M, Wada K, Suzuki H, Yamada C, Kumagai H, Hiratake J, Fukuyama K. Crystal structures of Esherichia coliγ-glutamyltranspeptidase in complex with glutamine antagonists. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308091228] [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: 11/10/2022] Open
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Hori M, Ishigame K, Aoki S, Kumagai H, Araki T. Diffusion Tensor Imaging and 3D Tractography of the Cervical Spinal Cord Using the ECG-Gated Line-scan Technique. A Feasibility Study. Neuroradiol J 2007; 20:574-9. [PMID: 24299949 DOI: 10.1177/197140090702000517] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2007] [Accepted: 08/15/2007] [Indexed: 11/15/2022] Open
Abstract
Diffusion tensor (DT) magnetic resonance (MR) imaging in addition to conventional MR images provide valuable information on the brain. This study compared line scan DT imaging with and without the ECG-gating technique to estimate clinical usefulness of the line scan diffusion tensor image (LSDTI) with ECG-gating in evaluating spinal cord diseases in vivo. First, five healthy volunteers participated in the comparison study. LSDWI was performed in three to five sagittal sections with a pulsed-field-gradient diffusion preparation pulse employing two different b-values (0 and 700 s/mm(2)) along six directions. Apparent diffusion coefficient (ADC) maps and fractional anisotropy (FA) were calculated and three-dimensional tract reconstruction and color schemes of the spinal cord were obtained. Image quality and the acquisition time of each LSDTI were compared. Second, LSDTI with ECG-gating was performed in eighteen patients with cervical spinal cord disorders and evaluated by two neuroradiologists. Images with the ECG-gated technique were all superior to those without ECG-gating. Mean extended time for LSDTI with ECG-gating was approximately two minutes. In clinical use, the ADC and FA of spinal cord in patients with cervical spondylotic myelopathy statically changed. Moreover, demonstration of fibers was correlated with clinical symptoms. ECG-gating technique is preferable to LSDTI. The ADC and FA measurements and 3D fiber tracking of LSDTI with ECG-gating are promising methods to estimate cervical spinal cord pathology in clinical use.
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Affiliation(s)
- M Hori
- Radiology Department, Toho University; Ota, Tokyo, Japan - -
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Kuge K, Iwakiri S, Endo Y, Yasuda N, Fukushima C, Kimura M, Shibuya H, Kumagai H, Hasegawa A. Detection of nuclear tracks comprising gold grains in nuclear emulsion by using gold deposition development method. RADIAT MEAS 2007. [DOI: 10.1016/j.radmeas.2007.06.013] [Citation(s) in RCA: 4] [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: 11/27/2022]
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Lu Y, Kitaura J, Oki T, Komeno Y, Ozaki K, Kiyono M, Kumagai H, Nakajima H, Nosaka T, Aburatani H, Kitamura T. Identification of TSC-22 as a potential tumor suppressor that is upregulated by Flt3-D835V but not Flt3-ITD. Leukemia 2007; 21:2246-57. [PMID: 17690703 DOI: 10.1038/sj.leu.2404883] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Transforming growth factor-beta (TGF-beta)-stimulated clone-22 (TSC-22) was originally isolated as a TGF-beta-inducible gene. In this study, we identified TSC-22 as a potential leukemia suppressor. Two types of FMS-like tyrosine kinase-3 (Flt3) mutations are frequently found in acute myeloid leukemia: Flt3-ITD harboring an internal tandem duplication in the juxtamembrane domain associated with poor prognosis and Flt3-TKD harboring a point mutation in the kinase domain. Comparison of gene expression profiles between Flt3-ITD- and Flt3-TKD-transduced Ba/F3 cells revealed that constitutive activation of Flt3 by Flt3-TKD, but not Flt3-ITD, upregulated the expression of TSC-22. Importantly, treatment with an Flt3 inhibitor PKC412 or an Flt3 small interfering RNA decreased the expression level of TSC-22 in Flt3-TKD-transduced cells. Forced expression of TSC-22 suppressed the growth and accelerated the differentiation of several leukemia cell lines into monocytes, in particular, in combination with differentiation-inducing reagents. On the other hand, a dominant-negative form of TSC-22 accelerated the growth of Flt3-TKD-transduced 32Dcl.3 cells. Collectively, these results suggest that TSC-22 is a possible target of leukemia therapy.
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Affiliation(s)
- Y Lu
- Division of Cellular Therapy, Advanced Clinical Research Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
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Fujisaki K, Shohno Y, Yoshida T, Ono A, Mizumasa T, Kondoh H, Katsuragi I, Ikeda K, Kumagai H, Meno H, Nishid T, Tomita Y, Tominaga R. Acute renal infarction in a patient with left atrial myxoma. Clin Nephrol 2007; 67:53-7. [PMID: 17269601 DOI: 10.5414/cnp67053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A 24-year-old male first attended our hospital with acute onset of right flank pain radiating to the right lower quadrant of the abdomen. A contrast-enhanced computer tomography (CT) scan showed renal infarction, and he was admitted immediately for treatment. On admission, the right lower abdominal pain diminished gradually. On the second day in hospital, a left atrial echogenic mass was detected which filled the left atrial cavity; it appeared to be a left atrial myxoma measuring 3.9+/-4.9 cm. The patient was immediately transferred and underwent emergency surgery. Histologic examination confirmed the diagnosis of myxoma. Post-operatively, he recovered well and was discharged from hospital without any further specific treatment.
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Affiliation(s)
- K Fujisaki
- Department of Medicine and Clinical Science, Division of Nephrology, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka 812-8582, Japan.
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Kumagai H, Ngampongsai W. Comparative studies on dry matter intake, digestibility and nitrogen metabolism between Thai native (TN) and Anglo Nubian×TN bucks. Small Rumin Res 2006. [DOI: 10.1016/j.smallrumres.2005.07.055] [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: 11/30/2022]
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Kabir MK, Kawata S, Adachi K, Tobita H, Miyazaki N, Kumagai H, Katada M, Kitagawa S. Iron-Chloranilate Intercalation Compounds: Synthesis, Crystal Structures, and Thermal Properties. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/10587250008026187] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- M. K. Kabir
- a Department of Chemistry , Shizuoka University , 836 Oya, Shizuoka , 422-8529 , Japan
| | - S. Kawata
- a Department of Chemistry , Shizuoka University , 836 Oya, Shizuoka , 422-8529 , Japan
| | - K. Adachi
- a Department of Chemistry , Shizuoka University , 836 Oya, Shizuoka , 422-8529 , Japan
| | - H. Tobita
- b Department of Chemistry , Tokyo Metropolitan University , Minami Ohsawa, Hachiouji, Tokyo , 192-0397 , Japan
| | - N. Miyazaki
- a Department of Chemistry , Shizuoka University , 836 Oya, Shizuoka , 422-8529 , Japan
| | - H. Kumagai
- b Department of Chemistry , Tokyo Metropolitan University , Minami Ohsawa, Hachiouji, Tokyo , 192-0397 , Japan
| | - M. Katada
- b Department of Chemistry , Tokyo Metropolitan University , Minami Ohsawa, Hachiouji, Tokyo , 192-0397 , Japan
| | - S. Kitagawa
- c Department of Synthetic Chemistry and Biological Chemistry , Graduate School of Engineering, Kyoto University , Yoshida, Sakyo-ku, Kyoto , 606-8501 , Japan
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Nakayama M, Nagata M, Hirano T, Sugai K, Katafuchi R, Imayama S, Uesugi N, Tsuchihashi T, Kumagai H. Low-dose prednisolone ameliorates acute renal failure caused by cholesterol crystal embolism. Clin Nephrol 2006; 66:232-9. [PMID: 17063989 DOI: 10.5414/cnp66232] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
AIMS The prognosis of renal cholesterol crystal embolism (CCE) is poor. Although various treatments for CCE have been attempted, there is no optimal therapy. We tested the effect of low-dose prednisolone (PS) on CCE-related acute renal failure (ARF). PATIENTS AND METHODS 7 patients (mean age 69 years) diagnosed with CCE-related ARF were treated with oral PS at 15-20 mg/day for 2-4 weeks, which was then tapered at 5 mg/day over 2-4 weeks, followed by 5 mg/day maintenance dose. Recurrent ARF during PS tapering was treated with a larger dose of PS. RESULTS Inciting factors were identified in four patients: coronary angiography (n=3) and cerebral angiography (n=1). On admission, serum creatinine (SCr) was 2.1 +/- 0.3 mg/dl (mean +/- SEM). SCr and eosinophil count before treatment were 4.2 +/- 0.4 mg/dl and 682 +/- 73/microl, respectively. PS therapy improved ARF in all cases at week 2 (SCr 3.8 +/- 0.5 mg/dl) parallel to a decrease in eosinophilia (116 +/- 30/microl), and at week 4 (3.1 +/- 0.4 mg/dl and 134 +/- 20/microl, respectively). At last follow-up, renal function was improved or maintained in 5 patients compared with that at week 4 post-treatment. One patient died of lung cancer. Another required LDL apheresis and hemodialysis but died due to CCE-related multi-organ failure. A third patient had recurrent ARF and was re-treated with a larger dose of PS, which resulted in an immediate decrease in SCr. However, the patient developed acute renal dysfunction due to congestive heart failure, and required hemodialysis. CONCLUSIONS Low-dose PS improved CCE-related ARF, probably through amelioration of inflammatory reaction surrounding affected renal vessels.
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Affiliation(s)
- M Nakayama
- Division of Nephrology and Clinical Research Institute, Department of Internal Medicine, National Kyushu Medical Center Hospital, 1-8-1 Jigyohama, Chuo-ku, Fukuoka 810-8563, Japan.
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48
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Kawai Y, Kumagai H, Kurihara H, Yamazaki K, Sawano R, Inoue N. β-Glucosidase inhibitory activities of phenylpropanoid glycosides, vanicoside A and B from Polygonum sachalinense rhizome. Fitoterapia 2006; 77:456-9. [PMID: 16828242 DOI: 10.1016/j.fitote.2006.05.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2004] [Accepted: 05/11/2006] [Indexed: 11/21/2022]
Abstract
The phenylpropanoid glycosides, vanicoside A and B, isolated from rhizomes of giant knotweed (Polygonum sachalinense) showed beta-glucosidase inhibitory activity, with IC(50) values of 59.8 and 48.3 mug/ml (59.9 and 50.5 muM), respectively. In contrast, p-coumaric acid and ferulic acid, corresponding to phenylpropanoyl moieties of vanicosides, exhibited very little inhibition.
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Affiliation(s)
- Y Kawai
- Faculty of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido 041-8611, Japan.
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49
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Kouroku Y, Fujita E, Tanida I, Ueno T, Isoai A, Kumagai H, Ogawa S, Kaufman RJ, Kominami E, Momoi T. ER stress (PERK/eIF2alpha phosphorylation) mediates the polyglutamine-induced LC3 conversion, an essential step for autophagy formation. Cell Death Differ 2006; 14:230-9. [PMID: 16794605 DOI: 10.1038/sj.cdd.4401984] [Citation(s) in RCA: 733] [Impact Index Per Article: 40.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Expanded polyglutamine 72 repeat (polyQ72) aggregates induce endoplasmic reticulum (ER) stress-mediated cell death with caspase-12 activation and vesicular formation (autophagy). We examined this relationship and the molecular mechanism of autophagy formation. Rapamycin, a stimulator of autophagy, inhibited the polyQ72-induced cell death with caspase-12 activation. PolyQ72, but not polyQ11, stimulated Atg5-Atg12-Atg16 complex-dependent microtubule-associated protein 1 (MAP1) light chain 3 (LC3) conversion from LC3-I to -II, which plays a key role in autophagy. The eucaryotic translation initiation factor 2 alpha (eIF2alpha) A/A mutation, a knock-in to replace a phosphorylatable Ser51 with Ala51, and dominant-negative PERK inhibited polyQ72-induced LC3 conversion. PolyQ72 as well as ER stress stimulators upregulated Atg12 mRNA and proteins via eIF2alpha phosphorylation. Furthermore, Atg5 deficiency as well as the eIF2alpha A/A mutation increased the number of cells showing polyQ72 aggregates and polyQ72-induced caspase-12 activation. Thus, autophagy formation is a cellular defense mechanism against polyQ72-induced ER-stress-mediated cell death by degrading polyQ72 aggregates, with PERK/eIF2alpha phosphorylation being involved in polyQ72-induced LC3 conversion.
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Affiliation(s)
- Y Kouroku
- Division of Development, National Institute of Neuroscience, 4-1-1 Ogawahigashi-machi, Kodaira, Tokyo 187-8502, Japan
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50
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Hong J, Tamaki H, Akiba S, Yamamoto K, Kumagai H. Cloning of a gene encoding a highly stable endo-beta-1,4-glucanase from Aspergillus niger and its expression in yeast. J Biosci Bioeng 2005; 92:434-41. [PMID: 16233124 DOI: 10.1263/jbb.92.434] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2001] [Accepted: 08/21/2001] [Indexed: 11/17/2022]
Abstract
A gene encoding an endo-beta-1,4-glucanase, which is highly resistant to high temperature, protease and surfactant treatment, was isolated from Aspergillus niger IFO31125 and designated as eng1. The deduced amino acid sequence encoded by eng1 showed high homology with the sequence of a not-well-characterized cellulase encoded by eglB which has not yet been shown to be a stable enzyme. To confirm the sequence of the gene encoding the highly stable endo-beta-1,4-glucanase, the cloned gene was expressed in the yeast Saccharomyces cerevisiae, in which no cellulase activity was found, and the gene product was purified and subjected to enzymatic characterization. The enzyme retained 56% of the initial activity after 1 h of incubation at 80 degrees C and was stable in the range of pH 3.0-10.0. The optimal temperature for enzyme activity was 70 degrees C and the optimal pH was 6.0. The enzyme was highly protease-resistant and retained more than 80% of the initial activity after protease treatment for 3 d at 40 degrees C. The enzyme was also resistant to various surfactants. From these results, eng1 was confirmed to encode a very stable endo-beta-1,4-glucanase.
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Affiliation(s)
- J Hong
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
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