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Ogawa M, Nohara H, Hsu HH, Ishizaka M, Miyagawa Y, Takemura N. Association between glomerular filtration rate and plasma N-terminal pro-atrial natriuretic peptide concentration in dogs. J Small Anim Pract 2023; 64:568-573. [PMID: 37345758 DOI: 10.1111/jsap.13626] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 03/16/2023] [Accepted: 04/21/2023] [Indexed: 06/23/2023]
Abstract
OBJECTIVES To investigate the association between plasma N-terminal pro-atrial natriuretic peptide concentration and glomerular filtration rate in dogs. MATERIALS AND METHODS Dogs were classified into four categories by bodyweight. Dogs were divided into four groups (Groups 1 to 4) based on glomerular filtration rate estimates using plasma iohexol clearance per bodyweight category. Generalised linear models were built to explore the relationship between plasma N-terminal pro-atrial natriuretic peptide concentration and glomerular filtration rate and the effect of confounders on plasma N-terminal pro-atrial natriuretic peptide concentration. RESULTS Fifty-three dogs were included (Group 1, 25; Group 2, seven; Group 3, five; and Group 4, 16). The medians (interquartile range) N-terminal pro-atrial natriuretic peptide concentrations for Groups 1 to 4 were 7224 pg/mL (4766 to 10,254 mg/dL), 8958 pg/mL (4935 to 11,271 mg/dL), 9280 pg/mL (9195 to 10,384 mg/dL) and 12,683 pg/mL (9133 to 19,217 mg/dL), respectively. Group 4, estimated to have the highest reduction in glomerular filtration rate, had a higher plasma N-terminal pro-atrial natriuretic peptide concentration than Groups 1 to 3. Based on the final generalised linear model, influencing factors for plasma N-terminal pro-atrial natriuretic peptide concentration were plasma iohexol clearance (-0.136; 95% confidence interval, -0.227 to -0.046) and bodyweight (-0.058; 95% confidence interval, -0.098 to -0.018). CLINICAL SIGNIFICANCE N-terminal pro-atrial natriuretic peptide concentration is associated with the glomerular filtration rate.
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Affiliation(s)
- M Ogawa
- Laboratory of Veterinary Internal Medicine II, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo, 180-8602, Japan
| | - H Nohara
- Laboratory of Veterinary Internal Medicine II, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo, 180-8602, Japan
| | - H H Hsu
- Laboratory of Veterinary Internal Medicine II, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo, 180-8602, Japan
| | - M Ishizaka
- Laboratory of Veterinary Internal Medicine II, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo, 180-8602, Japan
| | - Y Miyagawa
- Laboratory of Veterinary Internal Medicine II, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo, 180-8602, Japan
| | - N Takemura
- Laboratory of Veterinary Internal Medicine II, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo, 180-8602, Japan
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Kakuo M, Horii T, Tonomura N, Sato R, Ogawa M, Okajima T, Kamemura K. Evidence that only EWS among the FET proteins acquires a low partitioning property for the hyperosmotic stress response by O-GlcNAc glycosylation on its low-complexity domain. Exp Cell Res 2023; 424:113504. [PMID: 36736606 DOI: 10.1016/j.yexcr.2023.113504] [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: 12/16/2022] [Revised: 01/28/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023]
Abstract
FET proteins (FUS, EWS, and TAF15) share a common domain organization, bind RNA/DNA, and perform similarly multifunctional roles in the regulation of gene expression. Of the FET proteins, however, only EWS appears to have a distinct property in the cellular stress response. Therefore, we focused on the relationship between hyperosmotic stress response and post-translational modifications of the FET proteins. We confirmed that the hyperosmotic stress-dependent translocation from the nucleus to the cytoplasm and the cellular granule formation of FET proteins, and that EWS is less likely to partition into cellular granules in the cytoplasm than FUS or TAF15. The domain involved in the less partitioning property of EWS was found to be its low-complexity domain (LCD). Chemoenzymatic labeling analysis of O-linked β-N-acetylglucosamine (O-GlcNAc) residues revealed that O-GlcNAc glycosylation occurs frequently in the LCD of EWS. A correlation was observed between the glycosylation of EWS and the less partitioning property under the hyperosmotic stress. These results suggest that among the FET proteins, only EWS has acquired the unique property through O-GlcNAc glycosylation. The glycosylation may play an essential role in regulating physiological functions of EWS, such as transcriptional activity, in addition to the property in cellular stress response.
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Affiliation(s)
- Manami Kakuo
- Department of Medical Bioscience, Nagahama Institute of Bio-Science and Technology, Nagahama, Shiga, 526-0829, Japan
| | - Takeshi Horii
- Department of Medical Bioscience, Nagahama Institute of Bio-Science and Technology, Nagahama, Shiga, 526-0829, Japan
| | - Naoto Tonomura
- Department of Medical Bioscience, Nagahama Institute of Bio-Science and Technology, Nagahama, Shiga, 526-0829, Japan
| | - Runa Sato
- Department of Medical Bioscience, Nagahama Institute of Bio-Science and Technology, Nagahama, Shiga, 526-0829, Japan
| | - Mitsutaka Ogawa
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Tetsuya Okajima
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya, Aichi, 466-8550, Japan
| | - Kazuo Kamemura
- Department of Medical Bioscience, Nagahama Institute of Bio-Science and Technology, Nagahama, Shiga, 526-0829, Japan.
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Sakata N, Mishina R, Ogawa M, Ishihara K, Koda Y, Ozawa M, Shimokawa K. Handlebody decompositions of three-manifolds and polycontinuous patterns. Proc Math Phys Eng Sci 2022; 478:20220073. [PMID: 35510221 PMCID: PMC9053369 DOI: 10.1098/rspa.2022.0073] [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: 01/27/2022] [Accepted: 03/10/2022] [Indexed: 11/12/2022] Open
Abstract
We introduce the concept of a handlebody decomposition of a three-manifold, a generalization of a Heegaard splitting, or a trisection. We show that two handlebody decompositions of a closed orientable three-manifold are stably equivalent. As an application to materials science, we consider a mathematical model of polycontinuous patterns and discuss a topological study of microphase separation of a block copolymer melt.
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Affiliation(s)
- N Sakata
- Department of Mathematics, Saitama University, Saitama 338-8570, Japan
| | - R Mishina
- Department of Mathematics, Saitama University, Saitama 338-8570, Japan
| | - M Ogawa
- Department of Mathematics, Saitama University, Saitama 338-8570, Japan
| | - K Ishihara
- Faculty of Education, Yamaguchi University, Yamaguchi 753-8511, Japan
| | - Y Koda
- Department of Mathematics, Hiroshima University, Hiroshima 739-8511, Japan
| | - M Ozawa
- Department of Natural Sciences, Faculty of Arts and Sciences, Komazawa University, Tokyo 154-8525, Japan
| | - K Shimokawa
- Department of Mathematics, Saitama University, Saitama 338-8570, Japan.,Department of Mathematics, Ochanomizu University, Tokyo 112-8610, Japan
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Abstract
BACKGROUND Few studies have assessed depression in healthcare workers (HCWs) in Japan owing to the coronavirus disease 2019 (COVID-19) pandemic, and no studies have proposed effective interventions to help support their mental health. AIMS To test the hypothesis that enhancing access to mental healthcare professionals helps to improve HCWs' mental health. METHODS This cross-sectional study assessed depressive symptoms in HCWs at three hospitals in Osaka prefecture between May and July, 2020. The survey obtained information on HCWs' mental state and related situations/perceptions. Multivariable logistic regression analysis was performed to identify factors associated with depressive symptoms. RESULTS Of the 3291 eligible HCWs, 1269 (39%) completed the survey. Of all HCWs, 87 (7%) were physicians, and 700 (55%) were nurses. A total of 181 (14%) HCWs had moderate-to-severe symptoms of depression. Being a frontline worker was not significantly associated with depressive symptoms (odds ratio: 0.86 [95% confidence intervals: 0.54-1.37], P = 0.50). The unwillingness to consult with anyone was significantly associated with more severe depressive symptoms (1.70 [1.10-2.63], P < 0.01). HCWs who had no opportunity to confide in family/friends (1.66 [1.10-2.52], P < 0.01) or colleagues/supervisors (3.19 [2.22-4.58], P < 0.001) were significantly more likely to have depressive symptoms. CONCLUSIONS Being a frontline HCW in a Japanese hospital treating patients with COVID-19 was not significantly associated with having depressive symptoms. The study highlights that encouraging daily communication with close persons (family, friends, colleagues and supervisors), rather than improving access to mental health professionals, might help to prevent depression in HCWs during the COVID-19 pandemic.
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Affiliation(s)
- H Takada
- Osaka Prefectural Mental Health Centre, Bandai-higashi 3-1-46, Sumiyoshi, Osaka, Japan
| | - R Ae
- Division of Public Health, Centre for Community Medicine, Jichi Medical University, Yakushiji 3311-1, Shimotsuke, Tochigi, Japan
| | - M Ogawa
- Health Service Centre, Jichi Medical University, Yakushiji 3311-1, Shimotsuke, Tochigi, Japan
| | - T Kagomoto
- Osaka Prefectural Mental Health Centre, Bandai-higashi 3-1-46, Sumiyoshi, Osaka, Japan
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Yoshioka W, Sonehara K, Iida A, Oya Y, Kurashige T, Okubo M, Ogawa M, Matsuda F, Higasa K, Mori-Yoshimura M, Nakamura H, Hayashi S, Okada Y, Noguchi S, Nishino I. DISTAL MYOPATHIES. Neuromuscul Disord 2021. [DOI: 10.1016/j.nmd.2021.07.099] [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: 11/28/2022]
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Kumagawa M, Matsumoto N, Miura K, Ogawa M, Takahashi H, Hatta Y, Kondo R, Koizumi N, Takei M, Moriyama M. Correlation between alterations in blood flow of malignant lymphomas after induction chemotherapies and clinical outcomes: a pilot study utilising contrast-enhanced ultrasonography for early interim evaluation of lymphoma treatment. Clin Radiol 2021; 76:550.e9-550.e17. [PMID: 33691950 DOI: 10.1016/j.crad.2021.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Accepted: 02/04/2021] [Indexed: 02/07/2023]
Abstract
AIM To clarify the utility of contrast-enhanced ultrasonography (CEUS) for interim evaluation of response to chemotherapy in lymphoma treatment. MATERIALS AND METHODS CEUS was performed both before (day 0) and after the treatment (7 and/or 14 days), and a time-intensity curve was obtained. The patients were divided into two groups (complete remission [CR] group and non-CR group) according to the results of conventional response evaluation, and peak enhancement (PE), time to peak enhancement, perfusion index (PI), the total area under the curve during wash-in (AUC-in), and the total AUC were compared between the groups. RESULTS Among 27 patients with various types of lymphoma, the median change ratio of PE and PI at day 7 evaluation were significantly different between the CR group and the non-CR group (0.81 versus 1.39, p=0.017 for PE and 0.92 versus 2.09, p=0.010 for PI). The change ratio of PE < 1.09 (specificity: 86%; sensitivity, 88%) and PI < 1.65 (specificity: 86%; sensitivity: 94%) distinguished CR from non-CR. Patients who achieved a PE change ratio <1.09 or a PI change ratio <1.65 had significantly better estimated progression-free survival (p<0.001). CONCLUSION The present study demonstrated that changes in tumour perfusion parameters evaluated with CEUS at 1 week after the treatment initiation were significantly different between lymphoma patients in CR group and non-CR group. Alterations in perfusion parameters evaluated via CEUS could impact the prognosis of lymphoma patients.
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Affiliation(s)
- M Kumagawa
- Division of Gastroenterology and Hepatology, Department of Medicine, Nihon University School of Medicine, 30-1, Oyaguchi Kami-cho, Itabashi-ku, Tokyo, Japan
| | - N Matsumoto
- Division of Gastroenterology and Hepatology, Department of Medicine, Nihon University School of Medicine, 30-1, Oyaguchi Kami-cho, Itabashi-ku, Tokyo, Japan.
| | - K Miura
- Division of Hematology and Rheumatology, Department of Medicine, Nihon University School of Medicine, 30-1, Oyaguchi Kami-cho, Itabashi-ku, Tokyo, Japan.
| | - M Ogawa
- Division of Gastroenterology and Hepatology, Department of Medicine, Nihon University School of Medicine, 30-1, Oyaguchi Kami-cho, Itabashi-ku, Tokyo, Japan
| | - H Takahashi
- Division of Hematology and Rheumatology, Department of Medicine, Nihon University School of Medicine, 30-1, Oyaguchi Kami-cho, Itabashi-ku, Tokyo, Japan
| | - Y Hatta
- Division of Hematology and Rheumatology, Department of Medicine, Nihon University School of Medicine, 30-1, Oyaguchi Kami-cho, Itabashi-ku, Tokyo, Japan
| | - R Kondo
- Department of Mechanical Engineering and Intelligent Systems, Graduate School of Informatics and Engineering, The University of Electro-Communications, 1-5-1, Chofugaoka, Chofu-shi, Tokyo, Japan
| | - N Koizumi
- Department of Mechanical Engineering and Intelligent Systems, Graduate School of Informatics and Engineering, The University of Electro-Communications, 1-5-1, Chofugaoka, Chofu-shi, Tokyo, Japan
| | - M Takei
- Division of Hematology and Rheumatology, Department of Medicine, Nihon University School of Medicine, 30-1, Oyaguchi Kami-cho, Itabashi-ku, Tokyo, Japan
| | - M Moriyama
- Division of Gastroenterology and Hepatology, Department of Medicine, Nihon University School of Medicine, 30-1, Oyaguchi Kami-cho, Itabashi-ku, Tokyo, Japan
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Barua R, Mizuno K, Tashima Y, Ogawa M, Takeuchi H, Taguchi A, Okajima T. Bioinformatics and Functional Analyses Implicate Potential Roles for EOGT and L-fringe in Pancreatic Cancers. Molecules 2021; 26:molecules26040882. [PMID: 33562410 PMCID: PMC7915272 DOI: 10.3390/molecules26040882] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 01/30/2021] [Accepted: 02/02/2021] [Indexed: 12/14/2022] Open
Abstract
Notch signaling receptors, ligands, and their downstream target genes are dysregulated in pancreatic ductal adenocarcinoma (PDAC), suggesting a role of Notch signaling in pancreatic tumor development and progression. However, dysregulation of Notch signaling by post-translational modification of Notch receptors remains poorly understood. Here, we analyzed the Notch-modifying glycosyltransferase involved in the regulation of the ligand-dependent Notch signaling pathway. Bioinformatic analysis revealed that the expression of epidermal growth factor (EGF) domain-specific O-linked N-acetylglucosamine (EOGT) and Lunatic fringe (LFNG) positively correlates with a subset of Notch signaling genes in PDAC. The lack of EOGT or LFNG expression inhibited the proliferation and migration of Panc-1 cells, as observed by the inhibition of Notch activation. EOGT expression is significantly increased in the basal subtype, and low expression of both EOGT and LFNG predicts better overall survival in PDAC patients. These results imply potential roles for EOGT- and LFNG-dependent Notch signaling in PDAC.
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Affiliation(s)
- Rashu Barua
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan; (R.B.); (Y.T.); (M.O.); (H.T.)
| | - Kazuyuki Mizuno
- Division of Molecular Diagnostics, Aichi Cancer Center, 1-1 Kanokoden, Chikusa-ku, Nagoya, Aichi 464-8681, Japan; (K.M.); (A.T.)
| | - Yuko Tashima
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan; (R.B.); (Y.T.); (M.O.); (H.T.)
- Institute for Glyco-core Research (iGCORE), Integrated Glyco-Biomedical Research Center, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601 Nagoya, Japan
| | - Mitsutaka Ogawa
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan; (R.B.); (Y.T.); (M.O.); (H.T.)
- Institute for Glyco-core Research (iGCORE), Integrated Glyco-Biomedical Research Center, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601 Nagoya, Japan
| | - Hideyuki Takeuchi
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan; (R.B.); (Y.T.); (M.O.); (H.T.)
- Institute for Glyco-core Research (iGCORE), Integrated Glyco-Biomedical Research Center, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601 Nagoya, Japan
| | - Ayumu Taguchi
- Division of Molecular Diagnostics, Aichi Cancer Center, 1-1 Kanokoden, Chikusa-ku, Nagoya, Aichi 464-8681, Japan; (K.M.); (A.T.)
- Division of Advanced Cancer Diagnostics, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan
| | - Tetsuya Okajima
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan; (R.B.); (Y.T.); (M.O.); (H.T.)
- Institute for Glyco-core Research (iGCORE), Integrated Glyco-Biomedical Research Center, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601 Nagoya, Japan
- Correspondence: ; Tel.: +81-52-744-2068; Fax: +81-52-744-2069
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Hashiguchi H, Tsukamoto Y, Ogawa M, Tashima Y, Takeuchi H, Nakamura M, Kawashima H, Fujishiro M, Okajima T. Glycoproteomic analysis identifies cryptdin-related sequence 1 as O-glycosylated protein modified with α1,2-fucose in the small intestine. Arch Biochem Biophys 2020; 695:108653. [PMID: 33127381 DOI: 10.1016/j.abb.2020.108653] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 09/22/2020] [Revised: 10/22/2020] [Accepted: 10/24/2020] [Indexed: 12/23/2022]
Abstract
The modification of galactose with α1,2-fucose is involved in symbiosis with intestinal bacteria and elimination of pathogenic bacteria. It is postulated that α1,2-fucosylated mucin secreted from goblet cells is involved in defending an organism against infections, but the detailed molecular mechanisms are yet to be elucidated. It was previously reported that Paneth cells of the small intestine were positive for UEA-1 lectin staining. However, glycoproteins in Paneth cells carrying α1,2-fucose have not yet been identified. Glycoproteomic analysis of ileal lysates identified 3212 O-linked and 2962 N-linked glycopeptides. In particular, cryptdin-related sequence 1 (CRS1) expressed in Paneth cells was found to be α1,2-fucosylated. Unlike other antimicrobial α-defensin proteins, CRS1 contains unique Thr residues, which are modified with O-glycans, with 3HexNAc2Hex1Fuc1NeuAc being the main glycoform. Identification of α1,2-fucose on the O-glycans of CRS1 expressed in Paneth cells will pave the way for a mechanistic understanding of α1,2-fucose-dependent symbiosis with intestinal bacteria and elimination of pathogenic bacteria in the intestine.
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Affiliation(s)
- Hiroki Hashiguchi
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Aichi, Japan; Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Aichi, Japan
| | - Yohei Tsukamoto
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Aichi, Japan
| | - Mitsutaka Ogawa
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Aichi, Japan; Institute for Glyco-core Research (iGCORE), Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan
| | - Yuko Tashima
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Aichi, Japan; Institute for Glyco-core Research (iGCORE), Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan
| | - Hideyuki Takeuchi
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Aichi, Japan; Institute for Glyco-core Research (iGCORE), Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan
| | - Masanao Nakamura
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Aichi, Japan
| | - Hiroki Kawashima
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Aichi, Japan
| | - Mitsuhiro Fujishiro
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Aichi, Japan
| | - Tetsuya Okajima
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Aichi, Japan; Institute for Glyco-core Research (iGCORE), Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan.
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Gao S, Ogawa M, Takami A, Takeshita K, Kato H. Practical and Safe Method of Long-Term Cryopreservation for Clinical Application of Human Adipose-Derived Mesenchymal Stem Cells Without a Programmable Freezer Or Serum. Cryo Letters 2020; 41:337-343. [PMID: 33990810] [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] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
BACKGROUND Adipose-derived mesenchymal stem cells (ADSCs) have emerged as a promising modality for cellular therapy. However, techniques of ADSC cryopreservation, which can facilitate their clinical application, haven't been established yet. OBJECTIVE To determine optimal conditions for ADSC cryopreservation. MATERIALS AND METHODS We used three cryoprotectants [serum containing 10% dimethyl sulfoxide; CP-1TM (5% dimethyl sulfoxide, serum-free); Stem-CellBankerTM (dimethyl sulfoxide and serum-free)], two storage temperatures (-80°C, -150°C) and two cell densities (1 × 106, 7 × 106 cells/mL). Storage was up to 18 months using cryovials. We didn't use a rate-controlled freezer or liquid nitrogen storage. RESULTS We found that CP-1TM was a suitable cryoprotectant. Storage at -150°C and higher cell density (7×106 cells/mL) kept the best viability of ADSCs, but storage at -80°C and a lower cell density (1×106 cells/mL) is acceptable for up to 9 months. We also confirmed large quantities of ADSCs, stored with CP-1 in a cryobag, were still viable after -150°C cryopreservation for 24 months. CONCLUSION We have developed a safe, cost-effective way to cryopreserve ADSCs that could be used in the clinical setting.
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Affiliation(s)
- S Gao
- Department of Transfusion Medicine, Aichi Medical University, Nagakute, Aichi 480-1195, Japan.
| | - M Ogawa
- Clinical Laboratory, Aichi Medical University, Nagakute, Aichi 480-1195, Japan
| | - A Takami
- Department of Hematology, Aichi Medical University, Nagakute, Aichi 480-1195, Japan
| | - K Takeshita
- Department of Clinical Laboratory, Saitama Medical Center, Kawagoe, Saitama 350-8550, Japan
| | - H Kato
- Department of Transfusion Medicine, Aichi Medical University, Nagakute, Aichi 480-1195, Japan
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Miyakawa H, Nagatani Y, Ogawa M, Nagakawa M, Sakatani A, Akabane R, Miyagawa Y, Takemura N. Fibroblast growth factor-23 as an early marker of CKD-mineral bone disorder in dogs: preliminary investigation. J Small Anim Pract 2020; 61:744-751. [PMID: 33037651 DOI: 10.1111/jsap.13244] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 08/18/2020] [Accepted: 09/15/2020] [Indexed: 12/28/2022]
Abstract
OBJECTIVES To examine the relationship between fibroblast growth factor-23 levels, chronic kidney disease severity and mineral metabolic disorders associated to chronic kidney disease in dogs. MATERIALS AND METHODS Fifteen control and 75 chronic kidney disease dogs were retrospectively included. Serum fibroblast growth factor-23 concentration and other phosphate metabolite parameters were compared between controls and each International Renal Interest Society stage. Multiple regression analysis was performed to determine the predictors of fibroblast growth factor-23. RESULTS Serum fibroblast growth factor-23 concentrations were significantly higher in dogs with IRIS stages 2, 3 and 4 chronic kidney disease than those in dogs in control group and with stage 1 and increased along with the severity of chronic kidney disease. Compared with control dogs, serum intact parathyroid hormone significantly increased from stage 2 and serum phosphorus concentrations increased in dogs with stage 4. In dogs with stage 2, fibroblast growth factor-23 levels significantly increased in those with hyperphosphatemia compared with those with normophosphatemia. While eight of 26 (30.8%) dogs with stage 2 developed hyperparathyroidism (intact parathyroid hormone>8.5 ng/L), 19 (73.1%) dogs with stage 2 had elevated fibroblast growth factor-23 levels above the reference range (>528 pg/mL). Log creatinine, log intact parathyroid hormone and log product of total calcium and phosphorus were independent predictors of log fibroblast growth factor-23. CLINICAL SIGNIFICANCE This preliminary study suggests that canine fibroblast growth factor-23 might be involved in mineral metabolic disorders associated to chronic kidney disease in dogs, and this factor could be potentially used as an early marker for this condition.
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Affiliation(s)
- H Miyakawa
- Laboratory of Veterinary Internal Medicine II, Nippon Veterinary and Life Science University, Musashino-shi, Tokyo, 180-8602, Japan
| | - Y Nagatani
- Laboratory of Veterinary Internal Medicine II, Nippon Veterinary and Life Science University, Musashino-shi, Tokyo, 180-8602, Japan
| | - M Ogawa
- Laboratory of Veterinary Internal Medicine II, Nippon Veterinary and Life Science University, Musashino-shi, Tokyo, 180-8602, Japan
| | - M Nagakawa
- Laboratory of Veterinary Internal Medicine II, Nippon Veterinary and Life Science University, Musashino-shi, Tokyo, 180-8602, Japan
| | - A Sakatani
- Laboratory of Veterinary Internal Medicine II, Nippon Veterinary and Life Science University, Musashino-shi, Tokyo, 180-8602, Japan
| | - R Akabane
- Laboratory of Veterinary Internal Medicine II, Nippon Veterinary and Life Science University, Musashino-shi, Tokyo, 180-8602, Japan
| | - Y Miyagawa
- Laboratory of Veterinary Internal Medicine II, Nippon Veterinary and Life Science University, Musashino-shi, Tokyo, 180-8602, Japan
| | - N Takemura
- Laboratory of Veterinary Internal Medicine II, Nippon Veterinary and Life Science University, Musashino-shi, Tokyo, 180-8602, Japan
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11
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Ogasawara M, Ogawa M, Nonaka I, Hayashi S, Noguchi S, Nishino I. CONGENITAL MYOPATHIES 2. Neuromuscul Disord 2020. [DOI: 10.1016/j.nmd.2020.08.107] [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: 11/16/2022]
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12
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Thiebaud RS, Abe T, Ogawa M, Loenneke JP, Mitsukawa N. Accelerometer-Determined Intensity and Duration of Habitual Physical Activity and Walking Performance in Well-Functioning Middle-Aged and Older Women: A Cross-Sectional Study. J Frailty Aging 2020; 9:139-143. [PMID: 32588027 DOI: 10.14283/jfa.2019.26] [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: 11/11/2022]
Abstract
BACKGROUND The association of physical activity (PA) intensities and duration spent in those activities with different walking tasks remains unclear. OBJECTIVES To examine the association between the duration of PA intensities and three walking speeds (usual walking speed, maximal walking speed and zig-zag walking speed). DESIGN Multiple linear regression analysis was used to estimate the association of age, BMI, maximum knee extension strength, light PA, moderate PA and vigorous PA with walking speeds. SETTING University lab. PARTICIPANTS Eighty-six older women (67 ± 7 years). MEASUREMENTS PA was measured for 30 consecutive days using the Lifecorder-EX accelerometer. Exercise intensity was categorized as light (levels 1-3), moderate (levels 4-6) and vigorous (levels 7-9) based on the manufacturer algorithms. Usual straight walking speed (20 m), maximal straight walking speed (20 m) and zig-zag walking speed tests (10 m) were performed by each participant. RESULTS For the usual straight walking speed model (R2 = 0.296, SEE = 0.15 m/s), the significant predictors were BMI, knee extension strength, light PA and vigorous PA. For the maximal straight walking speed model (R2 = 0.326, SEE = 0.20 m/s), only age was a significant predictor. For the zig-zag walking speed model (R2=0.417, SEE = 0.14 m/s), age and maximum knee strength were significant predictors in the model. CONCLUSIONS Overall, the results of this study suggest that vigorous PA and maximal knee extension strength are two important factors that are associated with different walking speeds in older women.
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Affiliation(s)
- R S Thiebaud
- Robert S. Thiebaud, PhD Department of Kinesiology, Texas Wesleyan University, Fort Worth, TX 76105, USA, , Phone: 817-531-4902, Fax: (817) 531-4428
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13
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Komatsu‐Fujii T, Nonoyama S, Ogawa M, Fukumoto T, Tanabe H. Rapid effects of dupilumab treatment on papuloerythroderma of Ofuji. J Eur Acad Dermatol Venereol 2020; 34:e739-e741. [DOI: 10.1111/jdv.16581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 04/28/2020] [Indexed: 11/30/2022]
Affiliation(s)
- T. Komatsu‐Fujii
- Department of Dermatology Tenri Hospital Tenri Japan
- Department of Dermatology Kyoto University Graduate School of Medicine Kyoto Japan
| | - S. Nonoyama
- Department of Dermatology Tenri Hospital Tenri Japan
| | - M. Ogawa
- Department of Dermatology Tenri Hospital Tenri Japan
| | - T. Fukumoto
- Department of Dermatology Tenri Hospital Tenri Japan
| | - H. Tanabe
- Department of Dermatology Tenri Hospital Tenri Japan
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14
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Mikawa S, Nagakawa M, Ogi H, Akabane R, Koyama Y, Sakatani A, Ogawa M, Miyakawa H, Shigemoto J, Tokuriki T, Toda N, Miyagawa Y, Takemura N. Use of vertebral left atrial size for staging of dogs with myxomatous valve disease. J Vet Cardiol 2020; 30:92-99. [PMID: 32707334 DOI: 10.1016/j.jvc.2020.06.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 06/17/2020] [Accepted: 06/18/2020] [Indexed: 12/14/2022]
Abstract
INTRODUCTION/OBJECTIVES The American College of Veterinary Internal Medicine (ACVIM) guidelines suggest that pimobendan should be initiated in dogs which meet all criteria of stage B2 myxomatous mitral valve disease (MMVD): murmur intensity ≥ 3/6, left atrial-to-aortic ratio ≥ 1.6, normalized left ventricular internal diameter in diastole ≥ 1.7, and vertebral heart size > 10.5. Recently, a new radiographic index for left atrial enlargement, vertebral left atrial size (VLAS), was proposed. The objective of the present study was to evaluate whether VLAS is useful in staging MMVD and if it can distinguish between ACVIM stages B1 and B2. ANIMALS Ninety-seven client-owned dogs with MMVD were evaluated and classified as ACVIM stage B1, B2, or C-D. MATERIALS AND METHODS The echocardiographs and radiographs of all the dogs were retrospectively evaluated to obtain left atrial-to-aortic ratio, normalized left ventricular internal diameter in diastole, and VLAS values. The data were analyzed to assess the correlation between these measurements and VLAS, and the optimal cutoff value of VLAS was determined. RESULTS A VLAS cutoff value of 2.6 provided the greatest diagnostic accuracy for identification of dogs with ACVIM stage B2 MMVD (area under the curve, 0.96; sensitivity, 95%; specificity, 84%). A VLAS ≥2.5 exhibited the highest sensitivity (sensitivity, 100%; specificity, 78%), and a VLAS ≥ 3.1 exhibited the highest specificity (sensitivity, 47%; specificity, 100%). CONCLUSIONS VLAS is a helpful index for monitoring MMVD using radiography. A VLAS cutoff value of 2.5 could be used to identify dogs that may benefit from echocardiography to determine if they have reached ACVIM stage B2.
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Affiliation(s)
- S Mikawa
- Department of Clinical Pathology, Faculty of Veterinary Medicine, Okayama University of Science, 1-3 Ikoinooka, Imabari-shi, Ehime 794-8555, Japan.
| | - M Nagakawa
- Laboratory of Veterinary Internal Medicine II, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo 180-8602, Japan
| | - H Ogi
- Laboratory of Veterinary Internal Medicine II, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo 180-8602, Japan
| | - R Akabane
- Laboratory of Veterinary Internal Medicine II, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo 180-8602, Japan
| | - Y Koyama
- Laboratory of Veterinary Internal Medicine II, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo 180-8602, Japan
| | - A Sakatani
- Laboratory of Veterinary Internal Medicine II, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo 180-8602, Japan
| | - M Ogawa
- Laboratory of Veterinary Internal Medicine II, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo 180-8602, Japan
| | - H Miyakawa
- Laboratory of Veterinary Internal Medicine II, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo 180-8602, Japan
| | - J Shigemoto
- Oji Pet Clinic, 1-22-9 Toshima, Kita-ku, Tokyo 114-0003, Japan
| | - T Tokuriki
- Laboratory of Veterinary Internal Medicine II, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo 180-8602, Japan
| | - N Toda
- Laboratory of Veterinary Internal Medicine II, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo 180-8602, Japan
| | - Y Miyagawa
- Laboratory of Veterinary Internal Medicine II, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo 180-8602, Japan
| | - N Takemura
- Laboratory of Veterinary Internal Medicine II, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo 180-8602, Japan
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15
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Komatsu-Fujii T, Nonoyama S, Ogawa M, Fukumoto T, Sakai C, Yoshimoto Y, Nakanishi K, Abe N, Tanabe H. Subcutaneous pseudocystic phaeohyphomycosis due to Exophiala jeanselmei mimicking an epidermal cyst. J Eur Acad Dermatol Venereol 2020; 34:e745-e747. [PMID: 32374461 DOI: 10.1111/jdv.16585] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
| | - S Nonoyama
- Department of Dermatology, Tenri Hospital, Tenri, Japan
| | - M Ogawa
- Department of Dermatology, Tenri Hospital, Tenri, Japan
| | - T Fukumoto
- Department of Dermatology, Tenri Hospital, Tenri, Japan
| | - C Sakai
- Department of Plastic Surgery, Tenri Hospital, Tenri, Japan
| | - Y Yoshimoto
- Department of Plastic Surgery, Tenri Hospital, Tenri, Japan
| | - K Nakanishi
- Department of Laboratory Medicine, Tenri Hospital, Tenri, Japan
| | - N Abe
- Department of Laboratory Medicine, Tenri Hospital, Tenri, Japan
| | - H Tanabe
- Department of Dermatology, Tenri Hospital, Tenri, Japan
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16
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Alam SMD, Tsukamoto Y, Ogawa M, Senoo Y, Ikeda K, Tashima Y, Takeuchi H, Okajima T. N-Glycans on EGF domain-specific O-GlcNAc transferase (EOGT) facilitate EOGT maturation and peripheral endoplasmic reticulum localization. J Biol Chem 2020; 295:8560-8574. [PMID: 32376684 DOI: 10.1074/jbc.ra119.012280] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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: 12/11/2019] [Revised: 04/30/2020] [Indexed: 02/03/2023] Open
Abstract
Epidermal growth factor (EGF) domain-specific O-GlcNAc transferase (EOGT) is an endoplasmic reticulum (ER)-resident protein that modifies EGF repeats of Notch receptors and thereby regulates Delta-like ligand-mediated Notch signaling. Several EOGT mutations that may affect putative N-glycosylation consensus sites are recorded in the cancer database, but the presence and function of N-glycans in EOGT have not yet been characterized. Here, we identified N-glycosylation sites in mouse EOGT and elucidated their molecular functions. Three predicted N-glycosylation consensus sequences on EOGT are highly conserved among mammalian species. Within these sites, we found that Asn-263 and Asn-354, but not Asn-493, are modified with N-glycans. Lectin blotting, endoglycosidase H digestion, and MS analysis revealed that both residues are modified with oligomannose N-glycans. Loss of an individual N-glycan on EOGT did not affect its endoplasmic reticulum (ER) localization, enzyme activity, and ability to O-GlcNAcylate Notch1 in HEK293T cells. However, simultaneous substitution of both N-glycosylation sites affected both EOGT maturation and expression levels without an apparent change in enzymatic activity, suggesting that N-glycosylation at a single site is sufficient for EOGT maturation and expression. Accordingly, a decrease in O-GlcNAc stoichiometry was observed in Notch1 co-expressed with an N263Q/N354Q variant compared with WT EOGT. Moreover, the N263Q/N354Q variant exhibited altered subcellular distribution within the ER in HEK293T cells, indicating that N-glycosylation of EOGT is required for its ER localization at the cell periphery. These results suggest critical roles of N-glycans in sustaining O-GlcNAc transferase function both by maintaining EOGT levels and by ensuring its proper subcellular localization in the ER.
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Affiliation(s)
- Sayad Md Didarul Alam
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yohei Tsukamoto
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Mitsutaka Ogawa
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuya Senoo
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kazutaka Ikeda
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya, Japan.,RIKEN, Center for Integrative Medical Sciences, Suehiro-cho, Tsurumi, Yokohama, Japan
| | - Yuko Tashima
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hideyuki Takeuchi
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tetsuya Okajima
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, Nagoya, Japan
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17
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Harloff M, Piechura L, Percy E, Hirji S, Keshk M, Yazdchi F, Patel A, Ogawa M, Mallidi H, Rinewalt D. Safety of Mechanical Support via the Axillary Artery as a Bridge to Orthotopic Heart Transplantation. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.205] [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: 11/27/2022] Open
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18
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Piechura L, Harloff M, Keshk M, Ogawa M, Mallidi H, Rinewalt D. A Contemporary Analysis of the Safety and Efficacy of Cardiac Transplantation from Donors with Blood Infections. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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19
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Ogawa M. Glycosylation on Specific Notch EGF Repeats by OFUT1 and Fringe Regulates <i>Drosophila</i> Notch Signaling. TRENDS GLYCOSCI GLYC 2020. [DOI: 10.4052/tigg.1976.6j] [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: 11/20/2022]
Affiliation(s)
- Mitsutaka Ogawa
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine
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20
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Ogawa M. Glycosylation on Specific Notch EGF Repeats by OFUT1 and Fringe Regulates <i>Drosophila</i> Notch Signaling. TRENDS GLYCOSCI GLYC 2020. [DOI: 10.4052/tigg.1976.6e] [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: 11/20/2022]
Affiliation(s)
- Mitsutaka Ogawa
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine
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21
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Ogawa M, Tashima Y, Sakaguchi Y, Takeuchi H, Okajima T. Contribution of extracellular O-GlcNAc to the stability of folded epidermal growth factor-like domains and Notch1 trafficking. Biochem Biophys Res Commun 2020; 526:184-190. [PMID: 32201074 DOI: 10.1016/j.bbrc.2020.03.066] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [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: 02/25/2020] [Accepted: 03/10/2020] [Indexed: 01/05/2023]
Abstract
The Notch signaling pathway is highly conserved and essential in animal development and tissue homeostasis. Regulation of Notch signaling is a crucial process for human health. Ligands initiate a signal cascade by binding to Notch receptors expressed on the neighboring cell. Notch receptors interact with ligands through their epidermal growth factor-like repeats (EGF repeats). Most EGF repeats are modified by O-glycosylation with residues, such as O-linked N-acetylglucosamine (O-GlcNAc), O-fucose, and O-glucose. A recent study revealed the distinct roles of these O-glycans in ligand binding, processing, and trafficking of Notch receptors. In particular, O-GlcNAc glycans are essential for Delta-like (DLL) ligand-mediated Notch signaling. In this study, we showed that O-GlcNAc promotes Notch1 trafficking to the cell surfaces under the condition that O-fucose and O-glucose are removed from consecutive EGF repeats of Notch1. Through in vitro experiments, we showed that O-GlcNAc mediates the stability of EGF domains in the same manner as O-fucose and O-glucose. Thus, O-GlcNAc on EGF domains possesses a shared function in the stability of EGF domains and Notch1 trafficking.
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Affiliation(s)
- Mitsutaka Ogawa
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya, 466-8550, Japan
| | - Yuko Tashima
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya, 466-8550, Japan
| | - Yamato Sakaguchi
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya, 466-8550, Japan
| | - Hideyuki Takeuchi
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya, 466-8550, Japan
| | - Tetsuya Okajima
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya, 466-8550, Japan.
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22
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Ogawa M, Goto K, Kanameishi S, Dainichi T, Kabashima K, Tanabe H. Pemphigus vulgaris in a recipient and pemphigus foliaceus in a donor after allogeneic peripheral blood stem cell transplantation between two siblings. J Eur Acad Dermatol Venereol 2020; 34:e383-e386. [PMID: 32043651 DOI: 10.1111/jdv.16289] [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: 11/30/2022]
Affiliation(s)
- M Ogawa
- Department of Dermatology, Tenri Hospital, Tenri City, Japan
| | - K Goto
- Department of Dermatology, Tenri Hospital, Tenri City, Japan
| | - S Kanameishi
- Department of Dermatology, Tenri Hospital, Tenri City, Japan
| | - T Dainichi
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Kabashima
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - H Tanabe
- Department of Dermatology, Tenri Hospital, Tenri City, Japan
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23
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Ishihara K, Izawa KP, Kitamura M, Ogawa M, Shimogai T, Kanejima Y, Morisawa T, Shimizu I. Relation of Poor Nutritional Status to Mild Cognitive Impairment in Patients with Coronary Artery Disease. J Nutr Health Aging 2020; 24:1080-1086. [PMID: 33244564 DOI: 10.1007/s12603-020-1428-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVES Nutritional status affects cerebral circulation and cognitive function. More attention needs to be paid to nutritional status in coronary artery disease (CAD) patients, yet the relation between nutritional status or dietary intake (DI) and cognitive function or mild cognitive impairment (MCI) in CAD patients remain unclear. Thus, we examined the following relations: 1) that between nutritional status and cognitive function, and MCI and 2) that between DI and cognitive function, and MCI. DESIGN, SETTING, AND PARTICIPANTS We conducted a cross-sectional study of 208 patients with CAD but without dementia. MEASUREMENTS MCI was estimated with the Japanese version of the Montreal Cognitive Assessment (MoCA-J). Nutritional status was assessed by the Geriatric Nutritional Risk Index (GNRI), and DI was assessed by total energy intake per day. We investigated the relation between nutritional status or DI and cognitive function by Pearson correlation analysis, and that between nutritional status or DI and MCI by multivariable logistic regression analysis. RESULTS The GNRI and DI were positively associated with the MoCA-J score (r = 0.23, p < 0.001, and r = 0.24, p < 0.001, respectively), and both were independently associated with MCI in the multivariable logistic regression analysis (odds ratio, 0.96; p = 0.045, and odds ratio, 0.998; p = 0.020, respectively). CONCLUSIONS Poor nutritional status and low DI were found to be significantly associated with cognitive function and MCI in CAD patients. Our findings regarding nutritional status and DI might be useful for clinicians to prevent or intervene in the early cognitive decline of inpatients with CAD.
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Affiliation(s)
- K Ishihara
- Kazuhiro P. Izawa, Department of Public Health, Graduate School of Health Sciences, Kobe University, 10-2 Tomogaoka 7-chome, Suma-ku, Kobe 654-0142, Japan, Tel: +81-78-796-4566; E-mail:
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24
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Okai T, Mizutani K, Yamaguchi T, Ogawa M, Kajio K, Ito A, Iwata S, Takahashi Y, Izumiya Y, Murakami T, Shibata T, Yoshiyama M. P107 Predictors of increased d-dimer level at follow-up period after transcatheter aortic valve implantation.Is oral anticoagulation therapy better? Eur Heart J 2020. [DOI: 10.1093/ehjci/ehz872.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Recently, there are some reports that hypo-attenuated leaflet thickening (HALT) following transcatheter aortic valve implantation (TAVI) is incidentally detected by multi-slice computed tomography. It is believed that valve thrombosis causes HALT, because oral anticoagulation therapy (OAC) is effective for HALT regression. Furthermore, it is reported that d-dimer level increases in patients with HALT, and might be a key biomarker to detect HALT.
Purpose
We sought to investigate the predictors related to increased d-dimer level at 6 months after follow-up TAVI.
Methods
We enrolled 124 consecutive patients who underwent successful TAVI between 2016 and 2018. Study patients were classified into two groups according to antithrombotic therapy resume (OAC therapy or anti-platelet therapy).We set the primary endpoint as the d-dimer levels at 6 months after TAVI. To evaluate the risks of the primary endpoint, we employed a multivariable linear regression model, setting the primary endpoint as an objective variable and patient and clinical backgrounds as explanatory variables. Furthermore, we set the secondary endpoint as one-year bleeding event.
Results
The median age of patients was 83 years old (quartile 80-87). Patients who had taken OAC at 6 months follow-up after TAVI were 29.8%. The median d-dimer level at 6 months after TAVI was 1.3 (1.0-2.2) µg/ml, and OAC group had statistically lower d-dimer level at 6 months follow-up than those in non-OAC group (p = 0.020). Uni-variable liner regression model demonstrated that increased d-dimer level at follow-up had significant relationship with large effective orifice area (EOA) (p = 0.002) and low left ventricular ejection fraction (LVEF) (p = 0.048) after TAVI. Furthermore, large EOA (p = 0.003) and OAC therapy (p = 0.027) were independently associated with increased d-dimer level in multivariate analysis. Kaplan-Meier estimates revealed that there were no significant difference regarding one-year bleeding event between OAC group and non-OAC group (long-rank p = 0.167).
Conclusions
This study suggests that large EOA after TAVI is associated with increased d-dimer levels at 6 months after TAVI, and OAC therapy might have a potential to decrease d-dimer level after TAVI without increase of bleeding events.
Abstract P107 Figure: One-year bleeding event
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Affiliation(s)
- T Okai
- Osaka City University Graduate School of Medicine, Cardiovascular Medicine, Osaka, Japan
| | - K Mizutani
- Osaka City University Graduate School of Medicine, Cardiovascular Medicine, Osaka, Japan
| | - T Yamaguchi
- Osaka City University Graduate School of Medicine, Cardiovascular Medicine, Osaka, Japan
| | - M Ogawa
- Osaka City University Graduate School of Medicine, Cardiovascular Medicine, Osaka, Japan
| | - K Kajio
- Osaka City University Graduate School of Medicine, Cardiovascular Medicine, Osaka, Japan
| | - A Ito
- Osaka City University Graduate School of Medicine, Cardiovascular Medicine, Osaka, Japan
| | - S Iwata
- Osaka City University Graduate School of Medicine, Cardiovascular Medicine, Osaka, Japan
| | - Y Takahashi
- Osaka City University Graduate School of Medicine, Cardiovascular Surgery, Osaka, Japan
| | - Y Izumiya
- Osaka City University Graduate School of Medicine, Cardiovascular Medicine, Osaka, Japan
| | - T Murakami
- Osaka City University Graduate School of Medicine, Cardiovascular Surgery, Osaka, Japan
| | - T Shibata
- Osaka City University Graduate School of Medicine, Cardiovascular Surgery, Osaka, Japan
| | - M Yoshiyama
- Osaka City University Graduate School of Medicine, Cardiovascular Medicine, Osaka, Japan
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25
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Arai N, Kan H, Ogawa M, Uchida Y, Takizawa M, Omori K, Miyati T, Kasai H, Kunitomo H, Shibamoto Y. Visualization of Nigrosome 1 from the Viewpoint of Anatomic Structure. AJNR Am J Neuroradiol 2019; 41:86-91. [PMID: 31806600 DOI: 10.3174/ajnr.a6338] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Accepted: 10/10/2019] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Parkinson disease is related to neurodegeneration and iron deposition in the substantia nigra pars compacta and nigrosome 1. However, visualization of nigrosome 1 via MR imaging is poor owing to the bilateral asymmetry, regardless of whether it is healthy. We focused on the magic angle and susceptibility effect and evaluated the anatomic slant structure of nigrosome 1 by tilting subjects' heads in the B0 direction. MATERIALS AND METHODS To investigate the effectiveness of the magic angle, we tilted the volunteers' heads to the right and left in the B0 direction or not at all for evaluating correlations between the degree of head tilting and visualization of the right nigrosome 1 and left nigrosome 1 using 3D spoiled gradient-echo sequences with multiecho acquisitions. We evaluated the susceptibility of nigrosome 1 and the local field using quantitative susceptibility mapping to assess static magnetic field inhomogeneity. RESULTS The heads tilted to the right and left showed significantly higher contrasts of nigrosome 1 and the substantia nigra pars compacta than the nontilted heads. No significant differences were observed in the visualization and susceptibility between the right nigrosome 1 and left nigrosome 1 for each head tilt. The effect of the magic angle was remarkable in the nontilted heads. This finding was supported by quantitative susceptibility mapping because the anatomic slant structure of nigrosome 1 was coherent between the axis of nigrosome 1 and the magic angle. CONCLUSIONS The asymmetric visualization of nigrosome 1 is affected by the magic angle and susceptibility. The anatomic slant structure of nigrosome 1 causes these challenges in visualization.
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Affiliation(s)
- N Arai
- From the Department of Radiology (N.A., H. Kasai, H. Kunitomo), Nagoya City University Hospital, Nagoya, Japan
| | - H Kan
- Radiological and Medical Laboratory Sciences (H. Kan), Nagoya University Graduate School of Medicine, Nagoya, Japan.,Departments of Radiology (H. Kan, M.O., Y.S.)
| | - M Ogawa
- Departments of Radiology (H. Kan, M.O., Y.S.)
| | - Y Uchida
- Neurology (Y.U.), Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - M Takizawa
- Healthcare Business Unit (M.T., K.O.), Hitachi Ltd, Tokyo, Japan
| | - K Omori
- Healthcare Business Unit (M.T., K.O.), Hitachi Ltd, Tokyo, Japan
| | - T Miyati
- Division of Health Sciences, Graduate School of Medical Science (T.M.), Kanazawa University, Kanazawa, Japan
| | - H Kasai
- From the Department of Radiology (N.A., H. Kasai, H. Kunitomo), Nagoya City University Hospital, Nagoya, Japan
| | - H Kunitomo
- From the Department of Radiology (N.A., H. Kasai, H. Kunitomo), Nagoya City University Hospital, Nagoya, Japan
| | - Y Shibamoto
- Departments of Radiology (H. Kan, M.O., Y.S.)
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Shindo Y, Kuribara H, Matsuoka T, Futo S, Sawada C, Shono J, Akiyama H, Goda Y, Toyoda M, Hino A, Asano T, Hiramoto M, Iwaya A, Jeong SI, Kajiyama N, Kato H, Katsumoto H, Kim YM, Kwak HS, Ogawa M, Onozuka Y, Takubo K, Yamakawa H, Yamazaki F, Yoshida A, Yoshimura T. Validation of Real-Time PCR Analyses for Line-Specific Quantitation of Genetically Modified Maize and Soybean UsingNew Reference Molecules. J AOAC Int 2019. [DOI: 10.1093/jaoac/85.5.1119] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Novel analytical methods based on real-time quantitative polymerase chain reactions by use of new reference molecules were validated in interlaboratory studies for the quantitation of genetically modified (GM) maize and soy. More than 13 laboratories from Japan, Korea, and the United States participated in the studies. The interlaboratory studies included 2 separate stages: (1) measurement tests of coefficient values, the ratio of recombinant DNA (r-DNA) sequence, and endogenous DNA sequence in the seeds of GM maize and GM soy; and (2) blind tests with 6 pairs of maize and soy samples, including different levels of GM maize or GM soy. Test results showed that the methods are applicable to the specific quantitation of the 5 lines of GM maize and one line of GM soy. After statistical treatment to remove outliers, the repeatability and reproducibility of these methods at a level of 5.0% were <13.7 and 15.9%, respectively. The quantitation limits of the methods were 0.50% for Bt11, T25, and MON810, and 0.10% for GA21, Event176, and Roundup Ready soy. The results of blind tests showed that the numerical information obtained from these methods will contribute to practical analyses for labeling systems of GM crops.
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Affiliation(s)
- Yoichiro Shindo
- Fundamental Research Laboratory, Asahi Breweries Ltd., 1-1-21 Midori, Moriya, Kitasoma-gun, Ibaraki 302-0106, Japan
| | - Hideo Kuribara
- Center for Food Quality, Labeling and Consumer Services, 1-21-2 Kitabukuro, Saitama, Saitama 330-9731, Japan
| | - Takeshi Matsuoka
- Center for Food Quality, Labeling and Consumer Services, 1-21-2 Kitabukuro, Saitama, Saitama 330-9731, Japan
| | - Satoshi Futo
- FASMAC Co., Ltd., 5-1-3 Midorigaoka, Atsugi, Kanagawa 243-0041, Japan
| | - Chihiro Sawada
- Japan Frozen Foods Inspection Corp., Nishi-1 Koyo, Higashinada-ku, Kobe, Hyogo 658-0033, Japan
| | - Jinji Shono
- Somatech Center, House Foods Co., 1-4 Takanodai, Yotsukaido, Chiba 284-0033, Japan
| | - Hiroshi Akiyama
- National Institute of Health Sciences, Ministry of Health, Labour and Welfare, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Yukihiro Goda
- National Institute of Health Sciences, Ministry of Health, Labour and Welfare, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Masatake Toyoda
- National Institute of Health Sciences, Ministry of Health, Labour and Welfare, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Akihiro Hino
- National Food Research Institute, 2-1-12 Kannondai, Tsukuba, Ibaraki 305-8642, Japan
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27
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Ogawa M, Mizutani K, Okai T, Kajio K, Ito A, Iwata S, Takahashi Y, Murakami T, Shibata T, Yoshiyama M. P3693Self-expandable transcatheter aortic valve implantation is associated with frequent periprocedural stroke detected by diffusion-weighted magnetic resonance imaging -Insight from propensity score match. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Little evidence is available regarding the risk of peri-procedural stroke detected by diffusion-weighted magnetic resonance imaging (DW-MRI) after transcatheter aortic valve implantation (TAVI). Our purpose was to evaluate stroke risk after TAVI using DW-MRI by enrolling consecutive patients who underwent transfemoral TAVI and post-procedural DW-MRI.
Methods
We prospectively enrolled 113 consecutive patients who underwent transfemoral TAVI and post-procedural DW-MRI. We used balloon-expandable valves as first-line therapy and selected self-expandable valves only for patients with narrow sinotubular junctions or annuli. We set the primary endpoint as the number of high intensity areas (HIA) detected by DW-MRI regardless of the size of the area. To evaluate the risks of the primary endpoint, we employed a multivariable linear regression model, setting the primary endpoint as an objective variable and patient and clinical backgrounds as explanatory variables. In addition, the relationship between valve type and the number of HIAs on DW-MRI was also confirmed by the propensity score matching analysis to evaluate the robustness of the result, using a multivariable linear regression model with the protocol described in the previous manuscript. Shortly, the propensity score was calculated with a logistic regression model by setting the treatment as the response variable and baseline characteristics and procedural information that were significantly different between 2 groups (balloon expandable and self-expandable) as explanatory variables, which included age, estimated glomerular filtration rate, oversizing rate, and BAV before THV deployment.
Results
Median patient age was 84 years, and 36.3% were men. Ninety-three patients underwent balloon-expandable TAVI and 20 underwent self-expandable TAVI. Symptomatic stroke occurred in 6 (5.3%) whereas asymptomatic stroke occurred in 59 (52.2%) patients. The incidence of symptomatic and total stroke was higher in patients who underwent self-expandable TAVI than those who underwent balloon-expandable TAVI (30.0% vs 0.0%, p<0.001 and 90.0% vs 50.5%, p=0.001, respectively). A multivariable linear regression model demonstrated an increased primary endpoint when self-expandable TAVI was performed (p<0.001). The other covariates had no significant relationship to the primary endpoint. Akaike information criterion-based stepwise statistical model selection revealed that valve type was the only explanatory variable for the best predictive model. This result was also confirmed with the propensity score matching analysis (estimate, 2.359; 95% CI, 0.426–4.292; p=0.019) after adjustments of propensity score, in which 28 patients were matched (n=14 in each group).
Conclusions
Self-expandable valves were associated with increased numbers of HIA on DW-MRI after TAVI in patients with severe aortic stenosis.
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Affiliation(s)
- M Ogawa
- Osaka City University Graduate School of Medicine, Osaka, Japan
| | - K Mizutani
- Osaka City University Graduate School of Medicine, Osaka, Japan
| | - T Okai
- Osaka City University Graduate School of Medicine, Osaka, Japan
| | - K Kajio
- Osaka City University Graduate School of Medicine, Osaka, Japan
| | - A Ito
- Osaka City University Graduate School of Medicine, Osaka, Japan
| | - S Iwata
- Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Y Takahashi
- Osaka City University Graduate School of Medicine, Osaka, Japan
| | - T Murakami
- Osaka City University Graduate School of Medicine, Osaka, Japan
| | - T Shibata
- Osaka City University Graduate School of Medicine, Osaka, Japan
| | - M Yoshiyama
- Osaka City University Graduate School of Medicine, Osaka, Japan
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Hoi S, Takata T, Sugihara T, Ida A, Ogawa M, Mae Y, Fukuda S, Munemura C, Isomoto H. SAT-189 PREDICTIVE VALUE OF CORTICAL THICKNESS MEASURED BY ULTRASONOGRAPHY FOR RENAL IMPAIRMENT. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.223] [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: 11/25/2022] Open
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Abstract
BACKGROUND To secure human resources for occupational medicine, it is important to analyse occupational physician retention trends and the factors associated with retention. However, little is currently known about this topic. AIMS To identify occupational physician retention trends, to identify factors associated with this retention and to discuss the policy implications of the findings. METHODS We analysed data from the biannual national physician census surveys conducted by the government of Japan from 2002 to 2014. In this study, those who chose 'working as an occupational physician' as their workplace/type of work from a pre-determined list in the survey questionnaire were considered full-time occupational physicians. We presented retention trends by calculating the annual retention rate for each set of two consecutive surveys. We then used logistic regression to identify factors associated with retention among occupational physicians. RESULTS The annual retention rate of full-time occupational physicians from 2012 to 2014 was estimated as 76%, which represents a 6% improvement in retention over the study period. The odds of continuing to practise as an occupational physician were higher for occupational physicians working in cities compared with those working in towns or villages. CONCLUSIONS Improving and facilitating smooth transitions between clinical practice and occupational medicine would help to secure human resources in occupational medicine, even if the current trend of low retention continues.
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Affiliation(s)
- S Koike
- Division of Health Policy and Management, Center for Community Medicine, Jichi Medical University, Tochigi, Japan.,Division of Public Health Center for Community Medicine, Jichi Medical University, Tochigi, Japan
| | - T Isse
- Section of Postgraduate Guidance, School of Medicine, University of Occupational and Environmental Health, Fukuoka, Japan
| | - H Kawaguchi
- Department of Biomedical Informatics, The University of Tokyo, Tokyo, Japan
| | - M Ogawa
- Health Service Center, Jichi Medical University, Tochigi, Japan
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30
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Affiliation(s)
- Mitsutaka Ogawa
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine
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31
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Ogawa M. A New Type of <i>O</i>-Glucose Modification by POGLUT2 and POGLUT3 Controls Notch Signaling and Trafficking. TRENDS GLYCOSCI GLYC 2019. [DOI: 10.4052/tigg.1952.6j] [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: 11/20/2022]
Affiliation(s)
- Mitsutaka Ogawa
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine
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32
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Abstract
Extracellular O-GlcNAc is a unique modification restricted to the epidermal growth factor (EGF) domain-containing glycoproteins. This O-GlcNAcylation is catalyzed by the EGF-domain specific O-GlcNAc transferase (EOGT), which is localized in the lumen of endoplasmic reticulum. In humans, EOGT is one of the causative genes of a congenital disease, Adams-Oliver syndrome. EOGT is highly expressed in endothelial cells and regulates vascular development and integrity by potentiating Delta-like ligand-mediated Notch signaling. In Drosophila, Eogt modifies Dumpy, an apical extracellular matrix glycoprotein, and affects Dumpy-dependent cell-matrix interaction. In this review, we summarize the current findings of the structure and functions of extracellular O-GlcNAc in animals.
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Affiliation(s)
- Mitsutaka Ogawa
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan
| | - Tetsuya Okajima
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan.
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33
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Ogawa M, Izawa KP, Satomi-Kobayashi S, Tsuboi Y, Komaki K, Gotake Y, Yoshida N, Wakida K, Uchida J, Sakai Y, Okita Y. Effects of postoperative dietary intake on functional recovery of patients undergoing cardiac surgery. Nutr Metab Cardiovasc Dis 2019; 29:90-96. [PMID: 30522928 DOI: 10.1016/j.numecd.2018.10.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 07/05/2018] [Revised: 09/20/2018] [Accepted: 10/10/2018] [Indexed: 12/18/2022]
Abstract
BACKGROUND AND AIM Among elderly patients undergoing cardiac surgery, malnutrition is very common and related to muscle wasting known as sarcopenia. Cardiac surgery causes a further decline of nutritional status due to reduced dietary intake (DI); however, the impact of postoperative DI on functional recovery is unclear. METHODS AND RESULTS We enrolled 250 consecutive patients undergoing cardiac surgery. Daily DI was measured between postoperative days 3 and 7. Patients were categorized as having sufficient or insufficient DI based on whether their DI met or was less than estimated total energy requirements. Functional capacity was measured using the 6-minute walking distance (6MWD) preoperatively and at discharge. Mean postoperative DI was 22.4 ± 3.0 kcal/kg/day, and postoperative DI was insufficient in 92 patients (36.8%). The prevalence of sarcopenia was not different by postoperative DI. Although there was no significant difference in preoperative 6MWD results (P = 0.65), the sufficient DI group had longer 6MWD at discharge than the insufficient DI group (P = 0.04). In multivariate regression analysis, preoperative poor nutritional status (β = -0.29), duration of surgery (β = -0.18), and postoperative DI (β = 0.40) remained statistically significant predictors for improvement of 6MWD (P < 0.0001, adjusted R2 = 0.41). CONCLUSIONS Postoperative DI was independently associated with functional recovery, but preoperative sarcopenia was not. Regardless of preoperative nutritional status or the presence of sarcopenia, aggressive nutritional intervention in the early stage after surgery helps support functional recovery.
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Affiliation(s)
- M Ogawa
- Division of Rehabilitation Medicine, Kobe University Hospital, Kobe, Japan; Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - K P Izawa
- Department of Public Health, Kobe University Graduate School of Health Sciences, Kobe, Japan.
| | - S Satomi-Kobayashi
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Y Tsuboi
- Division of Rehabilitation Medicine, Kobe University Hospital, Kobe, Japan
| | - K Komaki
- Division of Rehabilitation Medicine, Kobe University Hospital, Kobe, Japan
| | - Y Gotake
- Division of Cardiovascular Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - N Yoshida
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - K Wakida
- Department of Nutrition, Kobe University Hospital, Kobe, Japan
| | - J Uchida
- Nutrition Management Department, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Y Sakai
- Division of Rehabilitation Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Y Okita
- Division of Cardiovascular Surgery, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
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Masui Y, Gondo Y, Yasumoto S, Ogawa M, Inagaki H, Onoguchi W, Ishioka Y, Ishizaki T. CAREGIVING EXPERIENCE PROMOTES THE GROWTH OF GEROTRANSCENDENCE IN OLD AGE. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.1071] [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: 11/14/2022] Open
Affiliation(s)
- Y Masui
- Tokyo Metropolitan Institute of Gerontology
| | - Y Gondo
- Osaka University Graduate School of Human Sciences
| | | | - M Ogawa
- Tokyo Metropolitan Institute of Gerontology
| | - H Inagaki
- Tokyo Metropolitan Institute of Gerontology
| | - W Onoguchi
- Tokyo Metropolitan Institute of Gerontology
| | | | - T Ishizaki
- Tokyo Metropolitan Institute of Gerontology
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35
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Noguchi S, Ogawa M, Nishino I. CONGENITAL MUSCULAR DYSTROPHIES. Neuromuscul Disord 2018. [DOI: 10.1016/j.nmd.2018.06.375] [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: 10/28/2022]
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36
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Mitamura Y, Nunomura S, Nanri Y, Ogawa M, Yoshihara T, Masuoka M, Tsuji G, Nakahara T, Hashimoto-Hachiya A, Conway SJ, Furue M, Izuhara K. The IL-13/periostin/IL-24 pathway causes epidermal barrier dysfunction in allergic skin inflammation. Allergy 2018. [PMID: 29528494 DOI: 10.1111/all.13437] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [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: 01/16/2023]
Abstract
BACKGROUND Barrier dysfunction is an important feature of atopic dermatitis (AD) in which IL-4 and IL-13, signature type 2 cytokines, are involved. Periostin, a matricellular protein induced by IL-4 or IL-13, plays a crucial role in the onset of allergic skin inflammation, including barrier dysfunction. However, it remains elusive how periostin causes barrier dysfunction downstream of the IL-13 signal. METHODS We systematically identified periostin-dependent expression profile using DNA microarrays. We then investigated whether IL-24 downregulates filaggrin expression downstream of the IL-13 signals and whether IL-13-induced IL-24 expression and IL-24-induced downregulation of filaggrin expression are dependent on the JAK/STAT pathway. To build on the significance of in vitro findings, we investigated expression of IL-24 and activation of STAT3 in mite-treated mice and in AD patients. RESULTS We identified IL-24 as an IL-13-induced molecule in a periostin-dependent manner. Keratinocytes are the main IL-24-producing tissue-resident cells stimulated by IL-13 in a periostin-dependent manner via STAT6. IL-24 significantly downregulated filaggrin expression via STAT3, contributing to barrier dysfunction downstream of the IL-13/periostin pathway. Wild-type mite-treated mice showed significantly enhanced expression of IL-24 and activation of STAT3 in the epidermis, which disappeared in both STAT6-deficient and periostin-deficient mice, suggesting that these events are downstream of both STAT6 and periostin. Moreover, IL-24 expression was enhanced in the epidermis of skin tissues taken from AD patients. CONCLUSIONS The IL-13/periostin pathway induces IL-24 production in keratinocytes, playing an important role in barrier dysfunction in AD.
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Affiliation(s)
- Y. Mitamura
- Division of Medical Biochemistry; Department of Biomolecular Sciences; Saga Medical School; Saga Japan
- Department of Dermatology; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - S. Nunomura
- Division of Medical Biochemistry; Department of Biomolecular Sciences; Saga Medical School; Saga Japan
| | - Y. Nanri
- Division of Medical Biochemistry; Department of Biomolecular Sciences; Saga Medical School; Saga Japan
| | - M. Ogawa
- Division of Medical Biochemistry; Department of Biomolecular Sciences; Saga Medical School; Saga Japan
| | - T. Yoshihara
- Division of Medical Biochemistry; Department of Biomolecular Sciences; Saga Medical School; Saga Japan
| | - M. Masuoka
- Division of Medical Biochemistry; Department of Biomolecular Sciences; Saga Medical School; Saga Japan
| | - G. Tsuji
- Department of Dermatology; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - T. Nakahara
- Department of Dermatology; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - A. Hashimoto-Hachiya
- Department of Dermatology; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - S. J. Conway
- HB Wells Center for Pediatric Research; Indiana University School of Medicine; Indianapolis IN USA
| | - M. Furue
- Department of Dermatology; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - K. Izuhara
- Division of Medical Biochemistry; Department of Biomolecular Sciences; Saga Medical School; Saga Japan
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37
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Ogawa M, Senoo Y, Ikeda K, Takeuchi H, Okajima T. Structural Divergence in O-GlcNAc Glycans Displayed on Epidermal Growth Factor-like Repeats of Mammalian Notch1. Molecules 2018; 23:E1745. [PMID: 30018219 PMCID: PMC6099671 DOI: 10.3390/molecules23071745] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 07/12/2018] [Accepted: 07/14/2018] [Indexed: 01/19/2023] Open
Abstract
Extracellular O-GlcNAc is a novel class of modification catalyzed by epidermal growth factor-like (EGF)-domain specific O-GlcNAc transferase (EOGT). In mammals, EOGT is required for ligand-mediated Notch signaling for vascular development. Previous studies have revealed that O-GlcNAc in mammalian cultured cells is subject to subsequent glycosylation, which may impose additional layers of regulation. This study aimed to analyze the O-GlcNAc glycans of Drosophila EGF20 as model substrates and mouse Notch1 EGF repeats by mass-spectrometry. The analysis of Drosophila EGF20 expressed in HEK293T cells revealed that the majority of the proteins are modified with an elongated form of O-GlcNAc glycan comprising terminal galactose or sialic acid residues. In contrast, recombinant Notch1 EGF repeats isolated from HEK293T cells revealed structural divergence of O-GlcNAc glycans among the different EGF domains. Although the majority of Notch1 EGF2 and EGF20 domains contained the extended forms of the glycan, the O-GlcNAc in many other domains mostly existed as a monosaccharide irrespective of the exogenous EOGT expression. Our results raised a hypothesis that an array of O-GlcNAc monosaccharides may impact the structure and function of Notch receptors.
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Affiliation(s)
- Mitsutaka Ogawa
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan.
| | - Yuya Senoo
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan.
| | - Kazutaka Ikeda
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan.
- RIKEN, Center for Integrative Medical Sciences, 1-7-22 SuehirO-cho, Tsurumi, Yokohama 230-0045, Japan.
| | - Hideyuki Takeuchi
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan.
| | - Tetsuya Okajima
- Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-8550, Japan.
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38
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Ogawa M, Kagaya H, Shibata S, Inamoto Y, Aoyagi Y, Onogi K, Mori S, Akahori R, Saitoh E. Swallowing rounds in patients with dysphagia. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.1056] [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: 11/24/2022]
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39
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Kagaya H, Ogawa M, Mori S, Aoyagi Y, Shibata S, Onogi K, Inamoto Y, Mori H, Saitoh E. Development of peripheral magnetic stimulation system to stimulate suprahyoid muscles. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.812] [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: 10/28/2022]
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40
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Ogawa M, Haruki K, Horiuchi A, Shiba H, Mitsuyama Y, Kusumoto M, Eto S, Ishiyama M, Hasegawa T, Yoshida K, Yanaga K. The evaluation of liver resection for colorectal cancer liver metastases. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy151.251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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41
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Kambe N, Okabe R, Osada H, Ogawa M, Kishimoto M, Fukushima R, Kondo H, Ohmori K. A case of feline gastrointestinal eosinophilic sclerosing fibroplasia limited to the mesentery. J Small Anim Pract 2018; 61:64-67. [PMID: 29708273 PMCID: PMC7166917 DOI: 10.1111/jsap.12847] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 10/06/2017] [Accepted: 11/16/2017] [Indexed: 11/29/2022]
Abstract
An entire, female, mixed‐breed cat of unknown age was presented with a 6‐week history of lethargy, anorexia and vomiting. There was an increase in the number of white blood cells in the blood, including neutrophils and eosinophils; moderate anaemia; ascites; and possible mesenteric peritonitis. Exploratory laparotomy revealed firm, multifocal small nodules in the mesentery. As the nodules were surgically unresectable, they were biopsied. Histologically, the nodules were composed of thin trabeculae of dense collagen fibres mixed with plump fibroblasts and numerous eosinophils, consistent with feline gastrointestinal eosinophilic sclerosing fibroplasia. Bacteria were not detected on histological examination of the nodules and cytology of the ascites. Remission of disease occurred following treatment with prednisolone and ciclosporin A for 22 days and antibiotics for 40 days. After remission, ciclosporin A was administered for 236 days and then discontinued. Eosinophilia also resolved after treatment with ciclosporin A. The cat is still alive and in good condition on day 689. This report describes what may be an atypical case of feline gastrointestinal eosinophilic sclerosing fibroplasia, lacking involvement of the gastrointestinal tract, and was apparently cured by treatment that involved ciclosporin A.
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Affiliation(s)
- N Kambe
- Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, 183-8509, Japan
| | - R Okabe
- Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, 183-8509, Japan
| | - H Osada
- Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, 183-8509, Japan
| | - M Ogawa
- Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, 183-8509, Japan
| | - M Kishimoto
- Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, 183-8509, Japan
| | - R Fukushima
- Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, 183-8509, Japan
| | - H Kondo
- Laboratory of Veterinary Pathology, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa, 252-0880, Japan
| | - K Ohmori
- Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, 183-8509, Japan
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Abstract
Abstract:In this study we have attempted to classify the acceleration signal, while walking both at horizontal level, and upstairs and downstairs, using wavelet analysis. The acceleration signal close to the body’s center of gravity was measured while the subjects walked in a corridor and up and down a stairway. The data for four steps were analyzed and the Daubecies 3 wavelet transform was applied to the sequential data. The variables to be discriminated were the waveforms related to levels -4 and -5. The sum of the square values at each step was compared at levels -4 and -5. Downstairs walking could be discriminated from other types of walking, showing the largest value for level -5. Walking at horizontal level was compared with upstairs walking for level -4. It was possible to discriminate the continuous dynamic responses to walking by the wavelet transform.
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Makiguchi T, Yokoo S, Ogawa M. Standard morphology of the oral commissure and changes resulting from reconstruction for defects involving the commissure. Int J Oral Maxillofac Surg 2018; 47:1274-1280. [PMID: 29402515 DOI: 10.1016/j.ijom.2018.01.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Revised: 11/27/2017] [Accepted: 01/15/2018] [Indexed: 12/01/2022]
Abstract
The aim of this study was to characterize the standard morphology of the oral commissure and to describe the changes after reconstruction in patients with through-and-through cheek defects involving the oral commissure. Indices for the morphological analyses of the commissure were derived from examinations of 50 normal Japanese volunteers. Ten patients with full-thickness cheek defects involving the commissure were then evaluated. All of these patients underwent free flap reconstruction with vermilion advancement flaps from the remaining vermilion. The morphology of the commissure with the mouth closed was classified based on the point of entrance of the vermilion into the oral cavity. In normal volunteers, the commissure pattern consisting of the entrance of the upper vermilion into the oral cavity before the lower vermilion and just prior to forming the oral commissure was considered to be the standard. However, in the reconstructed cases, there was an increase in the pattern in which the lower vermilion enters the oral cavity before the upper vermilion for the remaining commissure postoperatively, especially when the lower lip defects were greater than those of the upper lip. It is important to refer not only to the standard morphology of the commissure, but also to the changes according to the extent of resection and the method of reconstruction.
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Affiliation(s)
- T Makiguchi
- Department of Oral and Maxillofacial Surgery, Gunma University Graduate School of Medicine, Gunma, Japan.
| | - S Yokoo
- Department of Oral and Maxillofacial Surgery, Gunma University Graduate School of Medicine, Gunma, Japan
| | - M Ogawa
- Department of Oral and Maxillofacial Surgery, Gunma University Graduate School of Medicine, Gunma, Japan
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Wan E, Ogawa M, Okajima T. A Blood-retina Barrier Permeability Assay in Young Mice Using Sulfo-NHS-LC-biotin Perfusion. Bio Protoc 2018. [DOI: 10.21769/bioprotoc.3064] [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: 11/02/2022] Open
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45
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Ogawa M, Okajima T. Dissection and Whole Mount Staining of Retina from Neonatal Mice. Bio Protoc 2018; 8:e3034. [DOI: 10.21769/bioprotoc.3034] [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] [Received: 07/25/2018] [Revised: 08/17/2018] [Accepted: 08/21/2018] [Indexed: 11/02/2022] Open
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Zhang A, Sawaguchi S, Wan E, Ogawa M, Okajima T. Isolation of Murine Brain and Lung Microvascular Endothelial Cells. Bio Protoc 2018. [DOI: 10.21769/bioprotoc.2984] [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: 11/02/2022] Open
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47
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Shiba K, Takei T, Yoshikawa G, Ogawa M. Deposition of a titania layer on spherical porous silica particles and their nanostructure-induced vapor sensing properties. Nanoscale 2017; 9:16791-16799. [PMID: 29072757 DOI: 10.1039/c7nr06086f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A titania-stearic acid hybrid layer was deposited onto well-defined silica-hexadecyltrimethylammonium hybrid spherical particles with 854 nm size to obtain nanoporous particles with a useful hierarchical core-shell structure. The deposition of a 35 nm-thick titania layer was confirmed by transmission electron microscopy. The core-shell particles were washed with acidic ethanol (solvent extraction) and calcined at 550 °C for 5 h to remove the template, resulting in the formation of nanoporous titania coated nanoporous silica spherical particles, which have a bimodal pore size distribution attributed to the hierarchical porous core and porous shell structure. The nanoporous titania coated particles exhibited an unusual crystal phase transition; only anatase was present even after the calcination at 1000 °C for 1 h. This would be due to the interfacial bonding between the core silica and the shell titania, preventing the crystal phase transition from anatase to rutile. On the other hand, the direct calcination of the titania-stearic acid coated particles without solvent extraction led to a shell composed of both anatase and rutile. The transformation to rutile could be caused by the strong exothermic reaction during the oxidative decomposition of the occluded stearic acid. Furthermore, the intense exothermic reaction induced the formation of a yolk-shell structure, which played a role in the sensitive/selective sensing properties for acetic acid when the yolk-shell particles were coated onto a nanomechanical Membrane-type Surface stress Sensor (MSS).
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Affiliation(s)
- K Shiba
- World Premier International Research Center Initiative (WPI), International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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Sawaguchi S, Ogawa M, Okajima T. Protocol for Notch-ligand Binding Assays Using Dynabeads. Bio Protoc 2017; 7:e2582. [PMID: 34595264 DOI: 10.21769/bioprotoc.2582] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 09/14/2017] [Accepted: 09/15/2017] [Indexed: 11/02/2022] Open
Abstract
This protocol describes how to measure interaction between Notch receptors and their ligands by cell-based assay using Dynabeads. We have used the protocol to determine binding capacity between Notch1-transfected HEK293T cells and ligand-coated Dynabeads. Expression of Eogt in Notch1-expressing cells promoted binding toward DLL4-coated beads, but not JAG1-coated beads. The Notch-ligand assay using Dynabeads suggested that Eogt facilitates DLL4-Notch1 interaction ( Sawaguchi et al., 2017 ).
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Affiliation(s)
- Shogo Sawaguchi
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Mitsutaka Ogawa
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tetsuya Okajima
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Noguchi S, Ogawa M, Nishino I. A mouse with exon 9 deletion in Col6a1 as a model for dominant collagen VI-related disorders. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.058] [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: 11/28/2022]
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Nagatomo A, Oguri M, Nishida N, Ogawa M, Ichikawa A, Tanaka-Azuma Y. Evaluation of genotoxicity and subchronic toxicity of standardized rose hip extract. Hum Exp Toxicol 2017; 37:725-741. [DOI: 10.1177/0960327117730881] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Rose hip is the fruit of the rose plant, which is widely used in food, cosmetics and as a traditional medicine. Therefore, rose hip is considered safe and has a sufficient history of consumption as food. However, few studies have reported on the safety of rose hip extracts in toxicological analyses. Thus, to evaluate the safety of rosehip polyphenol MJ (RHPMJ), an aqueous ethanol extract standardized with the trans-tiliroside content, we performed genotoxicity and 90-day repeated oral dose toxicity studies in compliance with the Organisation for Economic Co-operation and Development-Good Laboratory Practice. RHPMJ did not induce gene mutations in reverse mutation tests of Salmonella typhimurium TA98, TA100, TA1535, TA1537 and Escherichia coli WP2 uvrA strains and did not induce chromosomal aberrations in cultured Chinese hamster lung (CHL/IU) cells. Moreover, micronucleus tests using rat bone marrow showed RHPMJ had no micronucleus-inducing potential. Finally, 90-day repeated oral dose toxicity studies (100–1000 mg/kg) in male and female rats showed no treatment-related toxicity in rats. These data indicate that the RHPMJ had no genotoxicity and a no-observed-adverse-effect level greater than 1000 mg/kg in rats.
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Affiliation(s)
| | - M Oguri
- Morishita Jintan Co., Ltd, Osaka, Japan
| | - N Nishida
- Morishita Jintan Co., Ltd, Osaka, Japan
| | - M Ogawa
- Bioresearch Center, CMIC Pharma Science Co., Ltd, Yamanashi, Japan
| | - A Ichikawa
- Bioresearch Center, CMIC Pharma Science Co., Ltd, Yamanashi, Japan
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