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Pooh RK, Takeda M, Itoh K, Yoshimatsu J, Ogo K, Machida M, Ohashi H, Shimokawa O. Open isthmus and lambda (Λ) sign of early Joubert syndrome: elucidating development of molar tooth sign. Ultrasound Obstet Gynecol 2024. [PMID: 38642341 DOI: 10.1002/uog.27666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 03/29/2024] [Accepted: 04/03/2024] [Indexed: 04/22/2024]
Affiliation(s)
- R K Pooh
- Fetal Brain Center, CRIFM Prenatal Medical Clinic, Osaka, Japan
- Department of Clinical Research, Ritz Medical Co. Ltd., Osaka, Japan
| | - M Takeda
- Department of Clinical Research, Ritz Medical Co. Ltd., Osaka, Japan
| | - K Itoh
- Department of Diagnostic Pathology, Kyoto Chubu Medical Center, Kyoto, Japan
| | - J Yoshimatsu
- Department of Obstetrics and Gynecology, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - K Ogo
- Department of Pathology, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - M Machida
- Fetal Brain Center, CRIFM Prenatal Medical Clinic, Osaka, Japan
| | - H Ohashi
- Department of Clinical Research, Ritz Medical Co. Ltd., Osaka, Japan
| | - O Shimokawa
- Department of Clinical Research, Ritz Medical Co. Ltd., Osaka, Japan
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2
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Tatara Y, Kasai S, Kokubu D, Tsujita T, Mimura J, Itoh K. Emerging Role of GCN1 in Disease and Homeostasis. Int J Mol Sci 2024; 25:2998. [PMID: 38474243 PMCID: PMC10931611 DOI: 10.3390/ijms25052998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 02/29/2024] [Accepted: 03/02/2024] [Indexed: 03/14/2024] Open
Abstract
GCN1 is recognized as a factor that is essential for the activation of GCN2, which is a sensor of amino acid starvation. This function is evolutionarily conserved from yeast to higher eukaryotes. However, recent studies have revealed non-canonical functions of GCN1 that are independent of GCN2, such as its participation in cell proliferation, apoptosis, and the immune response, beyond the borders of species. Although it is known that GCN1 and GCN2 interact with ribosomes to accomplish amino acid starvation sensing, recent studies have reported that GCN1 binds to disomes (i.e., ribosomes that collide each other), thereby regulating both the co-translational quality control and stress response. We propose that GCN1 regulates ribosome-mediated signaling by dynamically changing its partners among RWD domain-possessing proteins via unknown mechanisms. We recently demonstrated that GCN1 is essential for cell proliferation and whole-body energy regulation in mice. However, the manner in which ribosome-initiated signaling via GCN1 is related to various physiological functions warrants clarification. GCN1-mediated mechanisms and its interaction with other quality control and stress response signals should be important for proteostasis during aging and neurodegenerative diseases, and may be targeted for drug development.
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Affiliation(s)
- Yota Tatara
- Department of Stress Response Science, Biomedical Research Center, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
| | - Shuya Kasai
- Department of Stress Response Science, Biomedical Research Center, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
| | - Daichi Kokubu
- Diet and Well-Being Research Institute, KAGOME, Co., Ltd., 17 Nishitomiyama, Nasushiobara 329-2762, Tochigi, Japan
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
| | - Tadayuki Tsujita
- Laboratory of Biochemistry, Department of Applied Biochemistry and Food Science, Faculty of Agriculture, Saga University, 1 Honjo-machi, Saga City 840-8502, Saga, Japan;
| | - Junsei Mimura
- Department of Stress Response Science, Biomedical Research Center, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
| | - Ken Itoh
- Department of Stress Response Science, Biomedical Research Center, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
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3
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Dayalan Naidu S, Muramatsu A, Saito R, Asami S, Honda T, Hosoya T, Itoh K, Yamamoto M, Suzuki T, Dinkova-Kostova AT. Author Correction: C151 in KEAP1 is the main cysteine sensor for the cyanoenone class of NRF2 activators, irrespective of molecular size or shape. Sci Rep 2024; 14:4774. [PMID: 38413644 PMCID: PMC10899657 DOI: 10.1038/s41598-024-55265-5] [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: 02/29/2024] Open
Affiliation(s)
- Sharadha Dayalan Naidu
- Jacqui Wood Cancer Centre, Division of Cancer Research, School of Medicine, University of Dundee, Dundee, Scotland, UK
| | - Aki Muramatsu
- Department of Medical Biochemistry, Tohoku University Graduate School of Medicine, Aoba-Ku, Sendai, Japan
| | - Ryota Saito
- Department of Medical Biochemistry, Tohoku University Graduate School of Medicine, Aoba-Ku, Sendai, Japan
| | - Soichiro Asami
- Department of Medical Biochemistry, Tohoku University Graduate School of Medicine, Aoba-Ku, Sendai, Japan
| | - Tadashi Honda
- Department of Chemistry and Institute of Chemical Biology & Drug Discovery, Stony Brook University, Stony Brook, NY, 11794-3400, USA
| | - Tomonori Hosoya
- Department of Stress Response Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Ken Itoh
- Department of Stress Response Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Masayuki Yamamoto
- Department of Medical Biochemistry, Tohoku University Graduate School of Medicine, Aoba-Ku, Sendai, Japan
| | - Takafumi Suzuki
- Department of Medical Biochemistry, Tohoku University Graduate School of Medicine, Aoba-Ku, Sendai, Japan.
| | - Albena T Dinkova-Kostova
- Jacqui Wood Cancer Centre, Division of Cancer Research, School of Medicine, University of Dundee, Dundee, Scotland, UK.
- Department of Pharmacology and Molecular Sciences and Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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4
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Chukai Y, Ito G, Miki Y, Wakabayashi K, Itoh K, Sugano E, Tomita H, Fukuda T, Ozaki T. Role of calpain-5 in cerebral ischemia and reperfusion injury. Biochim Biophys Acta Gen Subj 2024; 1868:130506. [PMID: 37949151 DOI: 10.1016/j.bbagen.2023.130506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 10/27/2023] [Accepted: 10/30/2023] [Indexed: 11/12/2023]
Abstract
BACKGROUND Ischemia and reperfusion (I/R) injury exacerbate the prognosis of ischemic diseases. The cause of this exacerbation is partly a mitochondrial cell death pathway. Mitochondrial calpain-5 is proteolyzed/autolyzed under endoplasmic reticulum stress, resulting in inflammatory caspase-4 activation. However, the role of calpain-5 in I/R injury remains unclear. We hypothesized that calpain-5 is involved in ischemic brain disease. METHODS Mitochondria from C57BL/6J mice were extracted via centrifugation with/without proteinase K treatment. The expression and proteolysis/autolysis of calpain-5 were determined using western blotting. The mouse and human brains with I/R injury were analyzed using hematoxylin and eosin staining and immunohistochemistry. HT22 cells were treated with tunicamycin and CAPN5 siRNA. RESULTS Calpain-5 was expressed in the mitochondria of mouse tissues. Mitochondrial calpain-5 in mouse brains was responsive to calcium earlier than cytosolic calpain-5 in vitro calcium assays and in vivo bilateral common carotid artery occlusion model mice. Immunohistochemistry revealed that neurons were positive for calpain-5 in the normal brains of mice and humans. The expression of calpain-5 was increased in reactive astrocytes at human infarction sites. The knockdown of calpain-5 suppressed of cleaved caspase-11. CONCLUSIONS The neurons of human and mouse brains express calpain-5, which is proteolyzed/autolyzed in the mitochondria in the early stage of I/R injury and upregulated in reactive astrocytes in the end-stage. GENERAL SIGNIFICANCE Our results provide a comprehensive understanding of the mechanisms underlying I/R injury. Targeting the expression or activity of mitochondrial calpain-5 may suppress the inflammation during I/R injuries such as cerebrovascular diseases.
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Affiliation(s)
- Yusaku Chukai
- Department of Biological Science, Graduate School of Science and Engineering, Iwate University, Iwate, Japan
| | - Ginga Ito
- Department of Biological Science, Graduate School of Science and Engineering, Iwate University, Iwate, Japan
| | - Yasuo Miki
- Department of Neuropathology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, Aomori, Japan
| | - Koichi Wakabayashi
- Department of Neuropathology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, Aomori, Japan
| | - Ken Itoh
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Aomori, Japan
| | - Eriko Sugano
- Department of Biological Science, Graduate School of Science and Engineering, Iwate University, Iwate, Japan
| | - Hiroshi Tomita
- Department of Biological Science, Graduate School of Science and Engineering, Iwate University, Iwate, Japan
| | - Tomokazu Fukuda
- Department of Biological Science, Graduate School of Science and Engineering, Iwate University, Iwate, Japan
| | - Taku Ozaki
- Department of Biological Science, Graduate School of Science and Engineering, Iwate University, Iwate, Japan.
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5
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Kin F, Itoh K, Bando T, Shinohara K, Oyama N, Terakado A, Yoshida M, Sumida S. Impact of avalanche type of transport on internal transport barrier formation in tokamak plasmas. Sci Rep 2023; 13:19748. [PMID: 37957265 PMCID: PMC10643559 DOI: 10.1038/s41598-023-46978-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 11/07/2023] [Indexed: 11/15/2023] Open
Abstract
In magnetic fusion plasmas, a transport barrier is essential to improve the plasma confinement. The key physics behind the formation of a transport barrier is the suppression of the micro-scale turbulent transport. On the other hand, long-range transport events, such as avalanches, has been recognized to play significant roles for global profile formations. In this study, we observed the impact of the avalanche-type of transport on the formation of a transport barrier for the first time. The avalanches are found to inhibit the formation of the internal transport barrier (ITB) observed in JT-60U tokamak. We found that (1) ITBs do not form in the presence of avalanches but form under the disappearance of avalanches, (2) the surface integral of avalanche-driven heat fluxe is comparable to the time rate change of stored energy retained at the ITB onset, (3) the mean E × B flow shear is accelerated via the ion temperature gradient that is not sustained under the existence of avalanches, and (4) after the ITB formation, avalanches are damped inside the ITB, while they remain outside the ITB.
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Affiliation(s)
- F Kin
- National Institutes for Quantum Science and Technology, Naka, 311-0193, Japan.
- Institute of Advanced Energy, Kyoto University, Uji, 611-0011, Japan.
| | - K Itoh
- Frontier Research Institute, Chubu University, Kasugai, 487-8501, Japan
- Research Center for Plasma Turbulence, Kyushu University, Kasuga, 816-8580, Japan
| | - T Bando
- Toyohashi University of Technology, Toyohashi, 441-8580, Japan
| | - K Shinohara
- National Institutes for Quantum Science and Technology, Naka, 311-0193, Japan
- The University of Tokyo, Kashiwa, 277-8561, Japan
| | - N Oyama
- National Institutes for Quantum Science and Technology, Naka, 311-0193, Japan
| | - A Terakado
- National Institutes for Quantum Science and Technology, Naka, 311-0193, Japan
| | - M Yoshida
- National Institutes for Quantum Science and Technology, Naka, 311-0193, Japan
| | - S Sumida
- National Institutes for Quantum Science and Technology, Naka, 311-0193, Japan
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6
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Kasai S, Kokubu D, Mizukami H, Itoh K. Mitochondrial Reactive Oxygen Species, Insulin Resistance, and Nrf2-Mediated Oxidative Stress Response-Toward an Actionable Strategy for Anti-Aging. Biomolecules 2023; 13:1544. [PMID: 37892226 PMCID: PMC10605809 DOI: 10.3390/biom13101544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/12/2023] [Accepted: 10/15/2023] [Indexed: 10/29/2023] Open
Abstract
Reactive oxygen species (ROS) are produced mainly by mitochondrial respiration and function as signaling molecules in the physiological range. However, ROS production is also associated with the pathogenesis of various diseases, including insulin resistance (IR) and type 2 diabetes (T2D). This review focuses on the etiology of IR and early events, especially mitochondrial ROS (mtROS) production in insulin-sensitive tissues. Importantly, IR and/or defective adipogenesis in the white adipose tissues (WAT) is thought to increase free fatty acid and ectopic lipid deposition to develop into systemic IR. Fatty acid and ceramide accumulation mediate coenzyme Q reduction and mtROS production in IR in the skeletal muscle, while coenzyme Q synthesis downregulation is also involved in mtROS production in the WAT. Obesity-related IR is associated with the downregulation of mitochondrial catabolism of branched-chain amino acids (BCAAs) in the WAT, and the accumulation of BCAA and its metabolites as biomarkers in the blood could reliably indicate future T2D. Transcription factor NF-E2-related factor 2 (Nrf2), which regulates antioxidant enzyme expression in response to oxidative stress, is downregulated in insulin-resistant tissues. However, Nrf2 inducers, such as sulforaphane, could restore Nrf2 and target gene expression and attenuate IR in multiple tissues, including the WAT.
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Affiliation(s)
- Shuya Kasai
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan;
| | - Daichi Kokubu
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan;
- Diet & Well-being Research Institute, KAGOME CO., LTD., 17 Nishitomiyama, Nasushiobara 329-2762, Japan
| | - Hiroki Mizukami
- Department of Pathology and Molecular Medicine, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan;
| | - Ken Itoh
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan;
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan;
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7
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Sato M, Wai KM, Itoh K, Yang Y, Uchikawa Y, Ito Y, Nakaji S, Ihara K. Does the Protective Effect of Zinc on Telomere Length Depend on the Presence of Hypertension or Type 2 Diabetes? Results from the Iwaki Health Promotion Project, Japan. Nutrients 2023; 15:4373. [PMID: 37892448 PMCID: PMC10609662 DOI: 10.3390/nu15204373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/07/2023] [Accepted: 10/09/2023] [Indexed: 10/29/2023] Open
Abstract
Telomeres, repeated TTAGGG sequences at chromosomal ends, shorten with age and indicate cellular lifespan. Zinc can protect against telomere damage through its anti-oxidative effect. Meanwhile, telomere shortening was correlated with metabolic diseases of hypertension and type 2 diabetes. The objective of this study was to investigate whether the association between zinc and telomere length differs by the presence or absence of hypertension/type 2 diabetes. This is a cross-sectional study with 1064 participants of the Iwaki area, Japan. Multiple linear regression models were performed to test the hypothesis. A higher serum zinc concentration was significantly associated with a longer G-tail length (β = 48.11, 95% confidence intervals [CI]: 25.69, 70.54, p < 0.001). By multivariate linear regression analysis, there was a significant positive association between zinc and G-tail length in both hypertensive (β = 46.84, 95%CI: 9.69, 84.0, p = 0.014) and non-hypertensive groups (β = 49.47, 95%CI: 20.75, 78.18, p = 0.001), while the association was significant only in the non-diabetes group (β = 50.82, 95%CI: 27.54, 74.11, p < 0.001). In conclusion, higher zinc concentration was significantly associated with longer G-tail length. The protective effect of zinc on G-tail did not differ by hypertension status; however, it disappeared in individuals with type 2 diabetes.
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Affiliation(s)
- Mahiro Sato
- School of Medicine, Hirosaki University, Hirosaki 036-8562, Japan;
| | - Kyi Mar Wai
- Department of Social Medicine, Graduate School of Medicine, Hirosaki University, Hirosaki 036-8562, Japan (Y.I.)
| | - Ken Itoh
- Department of Stress Response Science, Center for Advanced Medical Research, Graduate School of Medicine, Hirosaki University, Hirosaki 036-8562, Japan
| | - Yichi Yang
- Department of Social Medicine, Graduate School of Medicine, Hirosaki University, Hirosaki 036-8562, Japan (Y.I.)
| | - Yuka Uchikawa
- Research and Development Division, MiRTeL Company Limited, Hiroshima 734-0001, Japan;
| | - Yukihiko Ito
- Department of Social Medicine, Graduate School of Medicine, Hirosaki University, Hirosaki 036-8562, Japan (Y.I.)
| | - Shigeyuki Nakaji
- Department of Social Medicine, Graduate School of Medicine, Hirosaki University, Hirosaki 036-8562, Japan (Y.I.)
- Innovation Center for Health Promotion, Graduate School of Medicine, Hirosaki University, Hirosaki 036-8562, Japan
| | - Kazushige Ihara
- Department of Social Medicine, Graduate School of Medicine, Hirosaki University, Hirosaki 036-8562, Japan (Y.I.)
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Kimura Y, Ekuban FA, Zong C, Sugie S, Zhang X, Itoh K, Yamamoto M, Ichihara S, Ohsako S, Ichihara G. Role of Nrf2 in 1,2-dichloropropane-induced cell proliferation and DNA damage in the mouse liver. Toxicol Sci 2023; 195:28-41. [PMID: 37326970 DOI: 10.1093/toxsci/kfad059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023] Open
Abstract
1,2-Dichloropropane (1,2-DCP) is recognized as the causative chemical of occupational cholangiocarcinoma in printing workers in Japan. However, the cellular and molecular mechanisms of 1,2-DCP-induced carcinogenesis remains elusive. The present study investigated cellular proliferation, DNA damage, apoptosis, and expression of antioxidant and proinflammatory genes in the liver of mice exposed daily to 1,2-DCP for 5 weeks, and the role of nuclear factor erythroid 2-related factor 2 (Nrf2) in these responses. Wild-type and Nrf2-knockout (Nrf2-/-) mice were administered 1,2-DCP by gastric gavage, and then the livers were collected for analysis. Immunohistochemistry for BrdU or Ki67 and TUNEL assay revealed that exposure to 1,2-DCP dose-dependently increased proliferative cholangiocytes, whereas decreased apoptotic cholangiocytes in wild-type mice but not in Nrf2-/- mice. Western blot and quantitative real-time PCR showed that exposure to 1,2-DCP increased the levels of DNA double-strand break marker γ-H2AX and mRNA expression levels of NQO1, xCT, GSTM1, and G6PD in the livers of wild-type mice in a dose-dependent manner, but no such changes were noted in Nrf2-/- mice. 1,2-DCP increased glutathione levels in the liver of both the wild-type and Nrf2-/- mice, suggesting that an Nrf2-independent mechanism contributes to 1,2-DCP-induced increase in glutathione level. In conclusion, the study demonstrated that exposure to 1,2-DCP induced proliferation but reduced apoptosis in cholangiocytes, and induced double-strand DNA breaks and upregulation of antioxidant genes in the liver in an Nrf2-dependent manner. The study suggests a role of Nrf2 in 1,2-DCP-induced cell proliferation, antiapoptotic effect, and DNA damage, which are recognized as key characteristics of carcinogens.
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Affiliation(s)
- Yusuke Kimura
- Department of Occupational and Environmental Health, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda 278-8510, Japan
| | - Frederick Adams Ekuban
- Department of Occupational and Environmental Health, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda 278-8510, Japan
| | - Cai Zong
- Department of Occupational and Environmental Health, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda 278-8510, Japan
| | - Shigeyuki Sugie
- Department of Diagnostic Pathology, Asahi University Murakami Memorial Hospital, Gifu 550-8856, Japan
| | - Xiao Zhang
- Department of Toxicology, Guangdong Province Hospital for Occupational Disease Prevention and Treatment, Guangzhou 510300, People's Republic of China
| | - Ken Itoh
- Department of Stress Response Science, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
| | - Masayuki Yamamoto
- Division of Medical Biochemistry, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Sahoko Ichihara
- Department of Environmental and Preventive Medicine, Jichi Medical University School of Medicine, Shimotsuke 329-0431, Japan
| | - Seiichiro Ohsako
- Department of Environmental and Preventive Medicine, The University of Tokyo, Tokyo 113-8654, Japan
| | - Gaku Ichihara
- Department of Occupational and Environmental Health, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda 278-8510, Japan
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Nakamura K, Uchino E, Sato N, Araki A, Terayama K, Kojima R, Murashita K, Itoh K, Mikami T, Tamada Y, Okuno Y. Individual health-disease phase diagrams for disease prevention based on machine learning. J Biomed Inform 2023; 144:104448. [PMID: 37467834 DOI: 10.1016/j.jbi.2023.104448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 07/09/2023] [Accepted: 07/16/2023] [Indexed: 07/21/2023]
Abstract
Early disease detection and prevention methods based on effective interventions are gaining attention worldwide. Progress in precision medicine has revealed that substantial heterogeneity exists in health data at the individual level and that complex health factors are involved in chronic disease development. Machine-learning techniques have enabled precise personal-level disease prediction by capturing individual differences in multivariate data. However, it is challenging to identify what aspects should be improved for disease prevention based on future disease-onset prediction because of the complex relationships among multiple biomarkers. Here, we present a health-disease phase diagram (HDPD) that represents an individual's health state by visualizing the future-onset boundary values of multiple biomarkers that fluctuate early in the disease progression process. In HDPDs, future-onset predictions are represented by perturbing multiple biomarker values while accounting for dependencies among variables. We constructed HDPDs for 11 diseases using longitudinal health checkup cohort data of 3,238 individuals, comprising 3,215 measurement items and genetic data. The improvement of biomarker values to the non-onset region in HDPD remarkably prevented future disease onset in 7 out of 11 diseases. HDPDs can represent individual physiological states in the onset process and be used as intervention goals for disease prevention.
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Affiliation(s)
- Kazuki Nakamura
- Department of Biomedical Data Intelligence, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan; Research and Business Development Department, Kyowa Hakko Bio Co., Ltd., Tokyo 100-0004, Japan
| | - Eiichiro Uchino
- Department of Biomedical Data Intelligence, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Noriaki Sato
- Department of Biomedical Data Intelligence, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Ayano Araki
- Department of Biomedical Data Intelligence, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Kei Terayama
- Department of Biomedical Data Intelligence, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan; Graduate School of Medical Life Science, Yokohama City University, Kanagawa 230-0045, Japan
| | - Ryosuke Kojima
- Department of Biomedical Data Intelligence, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan
| | - Koichi Murashita
- Center of Innovation Research Initiatives Organization (The Center of Healthy Aging Innovation), Graduate School of Medicine, Hirosaki University, Aomori 036-8562, Japan
| | - Ken Itoh
- Department of Stress Response Science, Graduate School of Medicine, Hirosaki University, Aomori 036-8562, Japan
| | - Tatsuya Mikami
- Innovation Center for Health Promotion, Graduate School of Medicine, Hirosaki University, Aomori 036-8562, Japan
| | - Yoshinori Tamada
- Innovation Center for Health Promotion, Graduate School of Medicine, Hirosaki University, Aomori 036-8562, Japan
| | - Yasushi Okuno
- Department of Biomedical Data Intelligence, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan.
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10
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Nakamura T, Kawarabayashi T, Nakahata N, Itoh K, Ihara K, Nakaji S, Ikeda Y, Takatama M, Shoji M. Annual stability of the plasma Aß40/42 ratio and associated factors. Ann Clin Transl Neurol 2023; 10:879-891. [PMID: 37013968 PMCID: PMC10270258 DOI: 10.1002/acn3.51770] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 03/21/2023] [Accepted: 03/23/2023] [Indexed: 04/05/2023] Open
Abstract
OBJECTIVE The plasma Aß40/42 ratio is a biomarker of brain amyloidosis. However, the threshold difference between amyloid positivity and negativity is only 10-20% and fluctuates with circadian rhythms, aging, and APOE-ε4 during the decades of evolution of Alzheimer's disease. METHODS Plasma Aß40 and Aß42 levels in 1472 participants aged between 19 and 93 years in the Iwaki Health Promotion Project for 4 years were statistically analyzed. RESULTS The means and standard deviations of annual inter-individual coefficients of variation were 5.3 ± 3.2% for Aß40, 7.8 ± 4.6% for Aß42, and 6.4 ± 4.1% for the Aß40/42 ratio. No significant age-dependent changes were observed in inter-individual coefficients of variation. Age-dependent increases in Aβ42 levels were suppressed, whereas those in the Aβ40/42 ratio were enhanced in APOE-ε4 carriers. The change points of Aß42, Aß40, and the Aß40/42 ratio were 36.4, 38.2, and 43.5 years, respectively. In the presence of APOE-ε4, the Aß40/42 ratio increased in middle-aged and elderly subjects while Aβ42 levels decreased in elderly subjects. INTERPRETATION Individual values for Aß40, Aß42, and the Aß40/42 ratio did not fluctuate annually or in an age-dependent manner. If the plasma Aβ40/42 ratio changes by more than 14.7% (+2 standard deviations) relative to age- and APOE-ε4-adjusted normal annual fluctuations, other biomarkers also need to be examined.
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Affiliation(s)
- Takumi Nakamura
- Department of NeurologyGunma University Graduate School of Medicine3‐39‐22 Showa‐machiMaebashi371‐8511Japan
- Department of Social MedicineHirosaki University Graduate School of Medicine5 Zaifu‐choHirosaki037‐8562Japan
| | - Takeshi Kawarabayashi
- Department of NeurologyGunma University Graduate School of Medicine3‐39‐22 Showa‐machiMaebashi371‐8511Japan
- Department of Social MedicineHirosaki University Graduate School of Medicine5 Zaifu‐choHirosaki037‐8562Japan
- Geriatrics Research Institute and Hospital3‐26‐8 Otomo‐machiMaebashi371‐0847Japan
| | - Naoko Nakahata
- Department of Social MedicineHirosaki University Graduate School of Medicine5 Zaifu‐choHirosaki037‐8562Japan
- Department of Rehabilitation Sciences, Division of Speech‐Language‐Hearing Therapy, School of Health SciencesHirosaki University of Health and WelfareHirosakiAomori036‐8102Japan
| | - Ken Itoh
- Department of Stress Response ScienceHirosaki University Graduate School of Medicine5 Zaifu‐choHirosaki037‐8562Japan
| | - Kazushige Ihara
- Department of Social MedicineHirosaki University Graduate School of Medicine5 Zaifu‐choHirosaki037‐8562Japan
| | - Shigeyuki Nakaji
- Department of Social MedicineHirosaki University Graduate School of Medicine5 Zaifu‐choHirosaki037‐8562Japan
| | - Yoshio Ikeda
- Department of NeurologyGunma University Graduate School of Medicine3‐39‐22 Showa‐machiMaebashi371‐8511Japan
| | - Masamitsu Takatama
- Geriatrics Research Institute and Hospital3‐26‐8 Otomo‐machiMaebashi371‐0847Japan
| | - Mikio Shoji
- Department of NeurologyGunma University Graduate School of Medicine3‐39‐22 Showa‐machiMaebashi371‐8511Japan
- Department of Social MedicineHirosaki University Graduate School of Medicine5 Zaifu‐choHirosaki037‐8562Japan
- Geriatrics Research Institute and Hospital3‐26‐8 Otomo‐machiMaebashi371‐0847Japan
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11
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Ito G, Tatara Y, Itoh K, Yamada M, Yamashita T, Sakamoto K, Nozaki T, Ishida K, Wake Y, Kaneko T, Fukuda T, Sugano E, Tomita H, Ozaki T. Novel dicarbonyl metabolic pathway via mitochondrial ES1 possessing glyoxalase III activity. BBA Adv 2023; 3:100092. [PMID: 37250100 PMCID: PMC10209487 DOI: 10.1016/j.bbadva.2023.100092] [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] [Indexed: 05/31/2023] Open
Abstract
Glycation, caused by reactive dicarbonyls, plays a role in various diseases by forming advanced glycation end products. In live cells, reactive dicarbonyls such as glyoxal (GO) and methylglyoxal (MGO) are produced during cell metabolism, and these should be removed consistently. However, the dicarbonyl metabolic system in the mitochondria remains unclear. It has been speculated that the mammalian mitochondrial protein ES1 is a homolog of bacterial elbB possessing glyoxalase III (GLO3) activity. Therefore, in this study, to investigate ES1 functions and GLO3 activity, we generated ES1-knockout (KO) mice and recombinant mouse ES1 protein and investigated the biochemical and histological analyses. In the mitochondrial fraction obtained from ES1-KO mouse brains, the GO metabolism and cytochrome c oxidase activity were significantly lower than those in the mitochondrial fraction obtained from wildtype (WT) mouse brains. However, the morphological features of the mitochondria did not change noticeably in the ES1-KO mouse brains compared with those in the WT mouse brains. The mitochondrial proteome analysis showed that the MGO degradation III pathway and oxidative phosphorylation-related proteins were increased. These should be the response to the reduced GO metabolism caused by ES1 deletion to compensate for the dicarbonyl metabolism and damaged cytochrome c oxidase by elevated GO. Recombinant mouse ES1 protein exhibited catalytic activity of converting GO to glycolic acid. These results indicate that ES1 possesses GLO3 activity and modulates the metabolism of GO in the mitochondria. To our knowledge, this is the first study to show a novel metabolic pathway for reactive dicarbonyls in mitochondria.
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Affiliation(s)
- Ginga Ito
- Department of Biological Science, Graduate School of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551, Japan
| | - Yota Tatara
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, 5 Zaifuchou, Hirosaki, Aomori 036-8562, Japan
| | - Ken Itoh
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, 5 Zaifuchou, Hirosaki, Aomori 036-8562, Japan
| | - Miwa Yamada
- Department of Biological Chemistry, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka, Iwate 020-8550, Japan
| | - Tetsuro Yamashita
- Department of Biological Chemistry, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka, Iwate 020-8550, Japan
| | - Kimitoshi Sakamoto
- Department of Biochemistry and Molecular Biology, Faculty of Agriculture and Life Science, Hirosaki University, Hirosaki, Aomori 036-8561, Japan
| | - Takayuki Nozaki
- Technical Support Center for Life Science Research, Iwate Medical University, 1-1-1 Idaidori, Yahaba, Iwate 028-3694, Japan
| | - Kinji Ishida
- Technical Support Center for Life Science Research, Iwate Medical University, 1-1-1 Idaidori, Yahaba, Iwate 028-3694, Japan
| | - Yui Wake
- Department of Biological Science, Graduate School of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551, Japan
| | - Takehito Kaneko
- Department of Biological Science, Graduate School of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551, Japan
| | - Tomokazu Fukuda
- Department of Biological Science, Graduate School of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551, Japan
| | - Eriko Sugano
- Department of Biological Science, Graduate School of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551, Japan
| | - Hiroshi Tomita
- Department of Biological Science, Graduate School of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551, Japan
| | - Taku Ozaki
- Department of Biological Science, Graduate School of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551, Japan
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12
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Yamauchi T, Koyama N, Hirai A, Suganuma H, Suzuki S, Murashita K, Mikami T, Tamada Y, Sato N, Imoto S, Itoh K, Nakaji S. Definition of a Dietary Pattern Expressing the Intake of Vegetables and Fruits and Its Association with Intestinal Microbiota. Nutrients 2023; 15:2104. [PMID: 37432274 DOI: 10.3390/nu15092104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/22/2023] [Accepted: 04/25/2023] [Indexed: 07/12/2023] Open
Abstract
Daily dietary habits directly or indirectly influence the intestinal microbiota, and the resulting changes in its composition and metabolic activity alter the health conditions of the host. Although many studies have analyzed the association between individual nutrients/food items and intestinal microbiota, the assessment of the diet and intestinal microbiota from a macroscopic perspective has not yet been performed in Japan. Therefore, we focused on vegetables and fruits and aimed to identify dietary patterns of high intake of these foods and to examine their relationship with the intestinal microbiota. This cross-sectional study included 1019 healthy individuals aged ≥20 years in a rural area in northern Japan. Six dietary patterns were detected by factor analysis using the brief-type self-administered diet history questionnaire (BDHQ) data to identify the "vege pattern", which was the dietary pattern rich in vegetables and fruits. Permutational multivariate analysis of variance revealed changes in β-diversity according to dietary patterns. In multivariable-adjusted models, the adherence to the vege pattern was positively correlated with α-diversity. This is the first study to reveal a correlation between intestinal microbiota and dietary habits rich in vegetables and fruits in a rural area of Japan.
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Affiliation(s)
- Toshitaka Yamauchi
- Innovation Division, KAGOME CO., LTD., 17 Nishitomiyama, Nasushiobara 329-2762, Japan
| | - Naoko Koyama
- Innovation Division, KAGOME CO., LTD., 17 Nishitomiyama, Nasushiobara 329-2762, Japan
| | - Ayumi Hirai
- Innovation Division, KAGOME CO., LTD., 17 Nishitomiyama, Nasushiobara 329-2762, Japan
| | - Hiroyuki Suganuma
- Innovation Division, KAGOME CO., LTD., 17 Nishitomiyama, Nasushiobara 329-2762, Japan
| | - Shigenori Suzuki
- Innovation Division, KAGOME CO., LTD., 17 Nishitomiyama, Nasushiobara 329-2762, Japan
| | - Koichi Murashita
- Innovation Center for Health Promotion, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan
| | - Tatsuya Mikami
- Innovation Center for Health Promotion, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan
| | - Yoshinori Tamada
- Innovation Center for Health Promotion, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan
| | - Noriaki Sato
- Human Genome Center, The Institute of Medical Science, The University of Tokyo, Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
| | - Seiya Imoto
- Human Genome Center, The Institute of Medical Science, The University of Tokyo, Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
| | - Ken Itoh
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan
| | - Shigeyuki Nakaji
- Innovation Center for Health Promotion, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan
- Department of Social Medicine, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan
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13
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Fuke N, Yamashita T, Shimizu S, Matsumoto M, Sawada K, Jung S, Tokuda I, Misawa M, Suzuki S, Ushida Y, Mikami T, Itoh K, Suganuma H. Association of Plasma Lipopolysaccharide-Binding Protein Concentration with Dietary Factors, Gut Microbiota, and Health Status in the Japanese General Adult Population: A Cross-Sectional Study. Metabolites 2023; 13:metabo13020250. [PMID: 36837869 PMCID: PMC9965710 DOI: 10.3390/metabo13020250] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/07/2023] [Accepted: 02/07/2023] [Indexed: 02/12/2023] Open
Abstract
The influx of intestinal bacteria-derived lipopolysaccharide (LPS) into the blood has attracted attention as a cause of diseases. The aim of this study is investigating the associations between the influx of LPS, dietary factors, gut microbiota, and health status in the general adult population. Food/nutrient intake, gut microbiota, health status and plasma LPS-binding protein (LBP; LPS exposure indicator) were measured in 896 residents (58.1% female, mean age 54.7 years) of the rural Iwaki district of Japan, and each correlation was analyzed. As the results, plasma LBP concentration correlated with physical (right/left arms' muscle mass [β = -0.02, -0.03]), renal (plasma renin activity [β = 0.27], urine albumin creatinine ratio [β = 0.50]), adrenal cortical (cortisol [β = 0.14]), and thyroid function (free thyroxine [β = 0.05]), iron metabolism (serum iron [β = -0.14]), and markers of lifestyle-related diseases (all Qs < 0.20). Plasma LBP concentration were mainly negatively correlated with vegetables/their nutrients intake (all βs ≤ -0.004, Qs < 0.20). Plasma LBP concentration was positively correlated with the proportion of Prevotella (β = 0.32), Megamonas (β = 0.56), and Streptococcus (β = 0.65); and negatively correlated with Roseburia (β = -0.57) (all Qs < 0.20). Dietary factors correlated with plasma LBP concentration correlated with positively (all βs ≥ 0.07) or negatively (all βs ≤ -0.07) the proportion of these bacteria (all Qs < 0.20). Our results suggested that plasma LBP concentration in the Japanese general adult population was associated with various health issues, and that dietary habit was associated with plasma LBP concentration in relation to the intestinal bacteria.
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Affiliation(s)
- Nobuo Fuke
- Innovation Division, KAGOME Co., Ltd., 17 Nishitomiyama, Nasushiobara 329-2762, Tochigi, Japan
- Correspondence: ; Tel.: +81-80-1573-5815
| | - Takahiro Yamashita
- Innovation Division, KAGOME Co., Ltd., 17 Nishitomiyama, Nasushiobara 329-2762, Tochigi, Japan
| | - Sunao Shimizu
- Innovation Division, KAGOME Co., Ltd., 17 Nishitomiyama, Nasushiobara 329-2762, Tochigi, Japan
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
| | - Mai Matsumoto
- Innovation Division, KAGOME Co., Ltd., 17 Nishitomiyama, Nasushiobara 329-2762, Tochigi, Japan
| | - Kaori Sawada
- Innovation Center for Health Promotion, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
| | - Songee Jung
- Innovation Center for Health Promotion, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
- Department of Digital Nutrition and Health Sciences, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
| | - Itoyo Tokuda
- Innovation Center for Health Promotion, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
| | - Mina Misawa
- Center of Innovation Research Initiatives Organization, Hirosaki University, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
| | - Shigenori Suzuki
- Innovation Division, KAGOME Co., Ltd., 17 Nishitomiyama, Nasushiobara 329-2762, Tochigi, Japan
| | - Yusuke Ushida
- Innovation Division, KAGOME Co., Ltd., 17 Nishitomiyama, Nasushiobara 329-2762, Tochigi, Japan
| | - Tatsuya Mikami
- Innovation Center for Health Promotion, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
| | - Ken Itoh
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
| | - Hiroyuki Suganuma
- Innovation Division, KAGOME Co., Ltd., 17 Nishitomiyama, Nasushiobara 329-2762, Tochigi, Japan
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14
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Fujita N, Ishida M, Iwane T, Suganuma H, Matsumoto M, Hatakeyama S, Yoneyama T, Hashimoto Y, Mikami T, Itoh K, Ohyama C. Association between Advanced Glycation End-Products, Carotenoids, and Severe Erectile Dysfunction. World J Mens Health 2023:41.e17. [PMID: 36649922 DOI: 10.5534/wjmh.220154] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 07/24/2022] [Revised: 09/16/2022] [Accepted: 10/06/2022] [Indexed: 01/18/2023] Open
Abstract
PURPOSE To investigate the association between skin advanced glycation end-products (AGEs) levels, blood antioxidative vitamin and carotenoid concentrations, and severe erectile dysfunction (ED) in community-dwelling men. MATERIALS AND METHODS This cross-sectional study used the 5-Item International Index of Erectile Function to identify 335 community-dwelling men with ED. The accumulation of skin AGEs was assessed noninvasively by measuring skin autofluorescence. Background-adjusted multivariable logistic regression analyses using the inverse probability of treatment weighting method were performed to evaluate the effects of AGEs, vitamins, and carotenoids on severe ED. Moreover, multiple linear regression analyses were performed to assess the association between skin AGEs levels and serum carotenoid concentrations. RESULTS The median age of study participants was 57 years. Of the 335 men, 289 (86.3%) and 46 (13.7%) were classified into the mild/moderate and severe ED groups, respectively. Multivariable analyses revealed that skin AGEs levels, blood vitamins C and E, lutein, zeaxanthin, β-cryptoxanthin, α-carotene, β-carotene, total lycopene, and cis-lycopenes concentrations were significantly associated with severe ED, whereas all-trans lycopene concentrations were not. In the multiple linear regression analyses, serum zeaxanthin concentrations were negatively and significantly correlated with skin AGEs levels. CONCLUSIONS Higher skin AGEs levels and lower blood antioxidative vitamin and carotenoid concentrations were significantly associated with severe ED. Serum zeaxanthin levels were negatively and significantly correlated with skin AGEs levels, suggesting the possible effects of zeaxanthin on ED by decreasing tissue AGEs levels.
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Affiliation(s)
- Naoki Fujita
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
| | - Mizuri Ishida
- Innovation Center for Health Promotion, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Takuro Iwane
- Innovation Center for Health Promotion, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Hiroyuki Suganuma
- Nature & Wellness Research Department, Innovation Division, KAGOME CO., LTD., Nagoya, Japan
| | - Mai Matsumoto
- Nature & Wellness Research Department, Innovation Division, KAGOME CO., LTD., Nagoya, Japan
| | - Shingo Hatakeyama
- Department of Advanced Blood Purification Therapy, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Takahiro Yoneyama
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Yasuhiro Hashimoto
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Tatsuya Mikami
- Innovation Center for Health Promotion, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Ken Itoh
- Department of Stress Response Science, Center for Advanced Medical Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Chikara Ohyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.,Department of Advanced Blood Purification Therapy, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.,Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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15
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Inose-Maruyama A, Kasai S, Itoh K. Human Heme Oxygenase-1 Promoter Activity Is Mediated by Z-DNA Formation. Methods Mol Biol 2023; 2651:157-166. [PMID: 36892766 DOI: 10.1007/978-1-0716-3084-6_11] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
Abstract
In recent years, it has been shown that Z-DNA formation in DNA plays functionally significant roles in nucleic acid metabolism, such as gene expression, chromosome recombination, and epigenetic regulation. The reason for the identification of these effects is mainly due to the advancement of Z-DNA detection methods in target genome regions in living cells.The heme oxygenase-1 (HO-1) gene encodes an enzyme that degrades an essential prosthetic heme, and environmental stimuli, including oxidative stress, lead to robust induction of the HO-1 gene. Many DNA elements and transcription factors are involved in the induction of the HO-1 gene, and Z-DNA formation in the thymine-guanine (TG) repetitive sequence in the human HO-1 gene promoter region is required for maximum gene induction.Here, we describe a detailed protocol for Z-DNA detection in the human HO-1 gene promoter region based on chromatin immunoprecipitation with quantitative PCR. We also provide some control experiments to consider in routine lab procedures.
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Affiliation(s)
- Atsushi Inose-Maruyama
- Division of Microbiology and Molecular Cell Biology, Nihon Pharmaceutical University, Ina-machi, Kita-adachigun, Japan
| | - Shuya Kasai
- Center for Advanced Medical Sciences, Department of Stress Response Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Ken Itoh
- Center for Advanced Medical Sciences, Department of Stress Response Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
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16
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Tatara Y, Yamazaki H, Katsuoka F, Chiba M, Saigusa D, Kasai S, Nakamura T, Inoue J, Aoki Y, Shoji M, Motoike IN, Tamada Y, Hashizume K, Shoji M, Kinoshita K, Murashita K, Nakaji S, Yamamoto M, Itoh K. Multiomics and artificial intelligence enabled peripheral blood-based prediction of amnestic mild cognitive impairment. Curr Res Transl Med 2023; 71:103367. [PMID: 36446162 DOI: 10.1016/j.retram.2022.103367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 08/03/2022] [Accepted: 10/20/2022] [Indexed: 02/06/2023]
Abstract
BACKGROUND Since dementia is preventable with early interventions, biomarkers that assist in diagnosing early stages of dementia, such as mild cognitive impairment (MCI), are urgently needed. METHODS Multiomics analysis of amnestic MCI (aMCI) peripheral blood (n = 25) was performed covering the transcriptome, microRNA, proteome, and metabolome. Validation analysis for microRNAs was conducted in an independent cohort (n = 12). Artificial intelligence was used to identify the most important features for predicting aMCI. FINDINGS We found that hsa-miR-4455 is the best biomarker in all omics analyses. The diagnostic index taking a ratio of hsa-miR-4455 to hsa-let-7b-3p predicted aMCI patients against healthy subjects with 97% overall accuracy. An integrated review of multiomics data suggested that a subset of T cells and the GCN (general control nonderepressible) pathway are associated with aMCI. INTERPRETATION The multiomics approach has enabled aMCI biomarkers with high specificity and illuminated the accompanying changes in peripheral blood. Future large-scale studies are necessary to validate candidate biomarkers for clinical use.
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Affiliation(s)
- Yota Tatara
- Department of Stress Response Science, Center for Advanced Medical Research, Graduate School of Medicine, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
| | - Hiromi Yamazaki
- Department of Stress Response Science, Center for Advanced Medical Research, Graduate School of Medicine, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
| | - Fumiki Katsuoka
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, 2-1 Seiryo-Machi, Aoba-ku, Sendai, Miyagi 980-8573, Japan
| | - Mitsuru Chiba
- Department of Bioscience and Laboratory Medicine, Hirosaki University Graduate School of Health Sciences, 66-1 Hon-cho, Hirosaki, Aomori 036-8564, Japan
| | - Daisuke Saigusa
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, 2-1 Seiryo-Machi, Aoba-ku, Sendai, Miyagi 980-8573, Japan
| | - Shuya Kasai
- Department of Stress Response Science, Center for Advanced Medical Research, Graduate School of Medicine, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
| | - Tomohiro Nakamura
- Department of Preventive Medicine and Epidemiology, Tohoku Medical Megabank Organization, Tohoku University, Division of Personalized Prevention and Epidemiology, 2-1 Seiryo-Machi, Aoba-ku, Sendai, Miyagi 980-8573, Japan
| | - Jin Inoue
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, 2-1 Seiryo-Machi, Aoba-ku, Sendai, Miyagi 980-8573, Japan
| | - Yuichi Aoki
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, 2-1 Seiryo-Machi, Aoba-ku, Sendai, Miyagi 980-8573, Japan
| | - Miho Shoji
- Human Metabolome Technologies, Inc., 246-2 Mizukami, Kakuganji, Tsuruoka, Yamagata 997-0052, Japan
| | - Ikuko N Motoike
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, 2-1 Seiryo-Machi, Aoba-ku, Sendai, Miyagi 980-8573, Japan
| | - Yoshinori Tamada
- Innovation Center for Health Promotion, Graduate School of Medicine, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
| | - Katsuhito Hashizume
- Human Metabolome Technologies, Inc., 246-2 Mizukami, Kakuganji, Tsuruoka, Yamagata 997-0052, Japan
| | - Mikio Shoji
- Department of Neurology, Gunma University Hospital, 3-39-15 Showamachi, Maebashi, Gunma 371-8511, Japan; Department of Neurology, Dementia Research Center, Geriatrics Research Institute and Hospital, 3-26-8 Ootomo-machi, Maebashi, Gunma 371-0847 Japan; COI Research Initiatives Organization, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8216, Japan
| | - Kengo Kinoshita
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, 2-1 Seiryo-Machi, Aoba-ku, Sendai, Miyagi 980-8573, Japan; Department of Applied Information Sciences, Graduate School of Information Sciences, Tohoku University, 6-6-05 Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi 980-8579, Japan; Advanced Research Center for Innovations in Next-Generation Medicine, Tohoku University, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8573, Japan
| | - Koichi Murashita
- COI Research Initiatives Organization, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8216, Japan
| | - Shigeyuki Nakaji
- Department of Social Medicine, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8216, Japan
| | - Masayuki Yamamoto
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, 2-1 Seiryo-Machi, Aoba-ku, Sendai, Miyagi 980-8573, Japan; Department of Medical Biochemistry, Graduate School of Medicine, Tohoku University, 2-1 Seiryo-Machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Ken Itoh
- Department of Stress Response Science, Center for Advanced Medical Research, Graduate School of Medicine, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan.
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17
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Nakamura T, Kawarabayashi T, Ueda T, Shimomura S, Hoshino M, Itoh K, Ihara K, Nakaji S, Takatama M, Ikeda Y, Shoji M. Plasma ApoE4 Levels Are Lower than ApoE2 and ApoE3 Levels, and Not Associated with Plasma Aβ40/42 Ratio as a Biomarker of Amyloid-β Amyloidosis in Alzheimer's Disease. J Alzheimers Dis 2023; 93:333-348. [PMID: 36970894 DOI: 10.3233/jad-220996] [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: 05/09/2023]
Abstract
BACKGROUND APOE4 is the strongest risk factor for Alzheimer's disease (AD). However, limited information is currently available on APOE4 and the pathological role of plasma apolipoprotein E (ApoE) 4 remains unclear. OBJECTIVE The aims of the present study were to measure plasma levels of total ApoE (tE), ApoE2, ApoE3, and ApoE4 using mass spectrometry and elucidate the relationships between plasma ApoE and blood test items. METHODS We herein examined plasma levels of tE, ApoE2, ApoE3, and ApoE4 in 498 subjects using liquid chromatograph-mass spectrometry (LC-MS/MS). RESULTS Among 498 subjects, mean age was 60 years and 309 were female. tE levels were distributed as ApoE2/E3 = ApoE2/E4 >ApoE3/E3 = ApoE3/E4 >ApoE4/E4. In the heterozygous group, ApoE isoform levels were distributed as ApoE2 >ApoE3 >ApoE4. ApoE levels were not associated with aging, the plasma amyloid-β (Aβ) 40/42 ratio, or the clinical diagnosis of AD. Total cholesterol levels correlated with the level of each ApoE isoform. ApoE2 levels were associated with renal function, ApoE3 levels with low-density lipoprotein cholesterol and liver function, and ApoE4 levels with triglycerides, high-density lipoprotein cholesterol, body weight, erythropoiesis, and insulin metabolism. CONCLUSION The present results suggest the potential of LC-MS/MS for the phenotyping and quantitation of plasma ApoE. Plasma ApoE levels are regulated in the order of ApoE2 >ApoE3 >ApoE4 and are associated with lipids and multiple metabolic pathways, but not directly with aging or AD biomarkers. The present results provide insights into the multiple pathways by which peripheral ApoE4 influences the progression of AD and atherosclerosis.
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Affiliation(s)
- Takumi Nakamura
- Department of Neurology, Gunma University Graduate School of Medicine, Maebashi, Japan
- Department of Social Medicine, Hirosaki University School of Medicine, Hirosaki, Japan
| | - Takeshi Kawarabayashi
- Department of Neurology, Gunma University Graduate School of Medicine, Maebashi, Japan
- Department of Neurology, Geriatrics Research Institute and Hospital, Maebashi, Japan
- Department of Social Medicine, Hirosaki University School of Medicine, Hirosaki, Japan
| | - Tetsuya Ueda
- Bioanalysis Department, LSI Medience Corporation, Itabashi-ku, Tokyo, Japan
| | - Sachiko Shimomura
- Bioanalysis Department, LSI Medience Corporation, Itabashi-ku, Tokyo, Japan
| | - Masaki Hoshino
- Bioanalysis Department, LSI Medience Corporation, Itabashi-ku, Tokyo, Japan
| | - Ken Itoh
- Department of Stress Response Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Kazushige Ihara
- Department of Social Medicine, Hirosaki University School of Medicine, Hirosaki, Japan
| | - Shigeyuki Nakaji
- Department of Social Medicine, Hirosaki University School of Medicine, Hirosaki, Japan
| | - Masamitsu Takatama
- Department of Neurology, Geriatrics Research Institute and Hospital, Maebashi, Japan
| | - Yoshio Ikeda
- Department of Neurology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Mikio Shoji
- Department of Neurology, Gunma University Graduate School of Medicine, Maebashi, Japan
- Department of Neurology, Geriatrics Research Institute and Hospital, Maebashi, Japan
- Department of Social Medicine, Hirosaki University School of Medicine, Hirosaki, Japan
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18
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Sehsah R, Wu W, Ichihara S, Hashimoto N, Zong C, Yamazaki K, Sato H, Itoh K, Yamamoto M, Elsayed AA, El-Bestar S, Kamel E, Ichihara G. Protective role of Nrf2 in zinc oxide nanoparticles-induced lung inflammation in female mice and sexual dimorphism in susceptibility. Toxicol Lett 2022; 370:24-34. [PMID: 36100149 DOI: 10.1016/j.toxlet.2022.09.004] [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: 03/05/2022] [Revised: 08/14/2022] [Accepted: 09/09/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Zinc oxide nanoparticles (ZnO-NPs) are currently employed in various products such as rubber, paint, and cosmetics. Our group reported recently that Nrf2 protein provides protection against pulmonary inflammation induced by ZnO-NPs in male mice. The current study investigated the effect of Nrf2 deletion on the lung inflammatory response in female mice exposed to ZnO-NPs. METHODS An equal number of female Nrf2-/- mice and female Nrf2+/+ mice (24 each) were allocated into three equal groups, and each was exposed to ZnO-NPs at either 0, 10 or 30 µg ZnO-NPs/mouse through pharyngeal aspiration. Bronchoalveolar lavage fluid (BALF) and lungs were examined 14 days later to determine the number of inflammatory cells, the protein level, and for scoring inflammation histopathologically. The mRNA levels of Nrf2-dependent antioxidant enzymes and proinflammatory cytokine in lung tissue were also measured. RESULTS Exposure to ZnO-NPs increased all types of BALF cells and lung inflammation scores in both of female Nrf2-null (Nrf2-/-) and wild-type (Nrf2+/+) mice, and Nrf2 deletion enhanced ZnO-NPs-induced increase in the number of eosinophils in BALF. Exposure to ZnO-NPs dose-dependently increased the level of oxidized glutathione (GSSG), and mRNA levels of proinflammatory cytokines/chemokines; KC, MIP-2, IL-6, IL-1β and MCP-1 only in wild-type mice. Nrf2 deletion decreased total glutathione levels and basal mRNA levels of SOD1 and NQO1, and increased the basal mRNA level of above proinflammatory cytokines/chemokines. Nrf2 deletion enhanced ZnO-NPs-induced downregulation of GcLc, GR and TGF-β and upregulation of HO-1 and TNF-α. Taken together with our previous results in male mice, our results showed a lower susceptibility of females to lung tissue inflammation, relative to males, irrespective of Nrf2 deletion, and that enhancement of ZnO-NPs-induced upregulation of HO-1 and TNF-α and downregulation of GcLc, GR and TGF-β by deletion of Nrf2 is specific to female mice. CONCLUSION We conclude that Nrf2 provides protection in female mice against increase in BALF eosinophils, probably through down-regulation of proinflammatory cytokines/chemokines and upregulation of oxidative stress-related genes. The study also suggests lower susceptibility to lung tissue inflammation in female mice relative to their male counterparts and the synergistic effects of Nrf2 and exposure to ZnO-NPs on mRNA expression of GcLc, GR, HO-1, TGF-β or TNF-α in female mice.
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Affiliation(s)
- Radwa Sehsah
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan; Department of Public Health and Community Medicine, Mansoura Faculty of Medicine, Mansoura, Egypt.
| | - Wenting Wu
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Sahoko Ichihara
- Department of Environmental and Preventive Medicine, Jichi Medical University, Shimotsuke, Japan.
| | - Naozumi Hashimoto
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Cai Zong
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan; Department of Occupational and Environmental Health, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda, Japan.
| | - Kyoka Yamazaki
- Department of Occupational and Environmental Health, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda, Japan.
| | - Harue Sato
- Department of Occupational and Environmental Health, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda, Japan.
| | - Ken Itoh
- Department of Stress Response Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
| | - Masayuki Yamamoto
- Department of Molecular Biochemistry, Tohoku University Graduate School of Medicine, Sendai, Japan.
| | - Ahmed Ali Elsayed
- Department of Pathology, Mansoura Faculty of Medicine, Mansoura, Egypt.
| | - Soheir El-Bestar
- Department of Public Health and Community Medicine, Mansoura Faculty of Medicine, Mansoura, Egypt.
| | - Emily Kamel
- Department of Public Health and Community Medicine, Mansoura Faculty of Medicine, Mansoura, Egypt.
| | - Gaku Ichihara
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan; Department of Occupational and Environmental Health, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda, Japan; Center for Health Management, Tokyo University of Science, Shinjuku, Tokyo.
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19
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Shimizu S, Kasai S, Yamazaki H, Tatara Y, Mimura J, Engler MJ, Tanji K, Nikaido Y, Inoue T, Suganuma H, Wakabayashi K, Itoh K. Sulforaphane Increase Mitochondrial Biogenesis-Related Gene Expression in the Hippocampus and Suppresses Age-Related Cognitive Decline in Mice. Int J Mol Sci 2022; 23:ijms23158433. [PMID: 35955572 PMCID: PMC9369397 DOI: 10.3390/ijms23158433] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/27/2022] [Accepted: 07/27/2022] [Indexed: 11/22/2022] Open
Abstract
Sulforaphane (SFN) is a potent activator of the transcriptional factor, Nuclear Factor Erythroid 2 (NF-E2)-Related factor 2 (NRF2). SFN and its precursor, glucoraphanin (sulforaphane glucosinolate, SGS), have been shown to ameliorate cognitive function in clinical trials and in vivo studies. However, the effects of SGS on age-related cognitive decline in Senescence-Accelerated Mouse Prone 8 (SAMP8) is unknown. In this study, we determined the preventive potential of SGS on age-related cognitive decline. One-month old SAMP8 mice or control SAM resistance 1 (SAMR1) mice were fed an ad libitum diet with or without SGS-containing broccoli sprout powder (0.3% w/w SGS in diet) until 13 months of age. SGS significantly improved long-term memory in SAMP8 at 12 months of age. Interestingly, SGS increased hippocampal mRNA and protein levels of peroxisome proliferator-activated receptor gamma coactivator-1 alpha (PGC1α) and mitochondrial transcription factor A (TFAM), which are master regulators of mitochondrial biogenesis, both in SAMR1 and SAMP8 at 13 months of age. Furthermore, mRNAs for nuclear respiratory factor-1 (NRF-1) and mitochondrial DNA-encoded respiratory complex enzymes, but not mitochondrial DNA itself, were increased by SGS in SAMP8 mice. These results suggest that SGS prevents age-related cognitive decline by maintaining mitochondrial function in senescence-accelerated mice.
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Affiliation(s)
- Sunao Shimizu
- Innovation Division, KAGOME Co., Ltd., 17 Nishitomiyama, Nasushiobara 329-2762, Tochigi, Japan; (S.S.); (T.I.); (H.S.)
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan; (S.K.); (H.Y.); (Y.T.); (J.M.)
- Department of Stress Response Science, Center for Advanced Medical Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan;
| | - Shuya Kasai
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan; (S.K.); (H.Y.); (Y.T.); (J.M.)
- Department of Stress Response Science, Center for Advanced Medical Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan;
| | - Hiromi Yamazaki
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan; (S.K.); (H.Y.); (Y.T.); (J.M.)
- Department of Stress Response Science, Center for Advanced Medical Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan;
| | - Yota Tatara
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan; (S.K.); (H.Y.); (Y.T.); (J.M.)
- Department of Stress Response Science, Center for Advanced Medical Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan;
| | - Junsei Mimura
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan; (S.K.); (H.Y.); (Y.T.); (J.M.)
- Department of Stress Response Science, Center for Advanced Medical Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan;
| | - Máté János Engler
- Department of Stress Response Science, Center for Advanced Medical Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan;
| | - Kunikazu Tanji
- Department of Neuropathology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan; (K.T.); (K.W.)
| | - Yoshikazu Nikaido
- Department of Metabolomics Innovation, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan;
- Department of Anesthesiology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan
| | - Takuro Inoue
- Innovation Division, KAGOME Co., Ltd., 17 Nishitomiyama, Nasushiobara 329-2762, Tochigi, Japan; (S.S.); (T.I.); (H.S.)
| | - Hiroyuki Suganuma
- Innovation Division, KAGOME Co., Ltd., 17 Nishitomiyama, Nasushiobara 329-2762, Tochigi, Japan; (S.S.); (T.I.); (H.S.)
| | - Koichi Wakabayashi
- Department of Neuropathology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan; (K.T.); (K.W.)
| | - Ken Itoh
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan; (S.K.); (H.Y.); (Y.T.); (J.M.)
- Department of Stress Response Science, Center for Advanced Medical Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Aomori, Japan;
- Correspondence:
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20
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Hasegawa T, Kakuta M, Yamaguchi R, Sato N, Mikami T, Murashita K, Nakaji S, Itoh K, Imoto S. Impact of salivary and pancreatic amylase gene copy numbers on diabetes, obesity, and functional profiles of microbiome in Northern Japanese population. Sci Rep 2022; 12:7628. [PMID: 35538098 PMCID: PMC9090785 DOI: 10.1038/s41598-022-11730-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 04/18/2022] [Indexed: 11/25/2022] Open
Abstract
Amylase genes reside in a structurally complex locus, and their copy numbers vary greatly, and several studies have reported their association with obesity. The mechanism of this effect was partially explained by changes in the oral and gut microbiome compositions; however, a detailed mechanism has been unclarified. In this study, we showed their association with diabetes in addition to obesity, and further discovered a plausible mechanism of this association based on the function of commensal bacteria. First, we confirmed that the amylase copy number in the population tends to be larger than that reported in other studies and that there is a positive association between obesity and diabetes (p = 1.89E-2 and 8.63E-3). Second, we identified that relative abundance of some genus level microbiome, Capnocytophaga, Dialister, and previously reported bacteria, were significantly associated with amylase copy numbers. Finally, through functional gene-set analysis using shotgun sequencing, we observed that the abundance of genes in the Acarbose pathway in the gut microbiome was significantly decreased with an increase in the amylase copy number (p-value = 5.80E-4). Our findings can partly explain the mechanism underlying obesity and diabetes in populations with high amylase copy numbers.
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Affiliation(s)
- Takanori Hasegawa
- Health Intelligence Center, The Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan.
| | - Masanori Kakuta
- Human Genome Center, The Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan
| | - Rui Yamaguchi
- Human Genome Center, The Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan
| | - Noriaki Sato
- Department of Biomedical Data Intelligence, Graduate School of Medicine, Kyoto University, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Tatsuya Mikami
- Innovation Center for Health Promotion, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Koichi Murashita
- COI Research Initiatives Organization, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori, Japan
| | - Shigeyuki Nakaji
- Department of Social Medicine, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Ken Itoh
- Department of Stress Response Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan
| | - Seiya Imoto
- Health Intelligence Center, The Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan.
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21
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Iwamura H, Mizuno K, Akamatsu S, Hatakeyama S, Tobisawa Y, Narita S, Narita T, Yamashita S, Kawamura S, Sakurai T, Fujita N, Kodama H, Noro D, Kakizaki I, Nakaji S, Itoh K, Tsuchiya N, Ito A, Habuchi T, Ohyama C, Yoneyama T. Machine learning diagnosis by immunoglobulin N-glycan signature for precision diagnosis of urological diseases. Cancer Sci 2022; 113:2434-2445. [PMID: 35524940 PMCID: PMC9277255 DOI: 10.1111/cas.15395] [Citation(s) in RCA: 5] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/11/2022] [Accepted: 04/27/2022] [Indexed: 11/28/2022] Open
Abstract
Early diagnosis of urological diseases is often difficult due to the lack of specific biomarkers. More powerful and less invasive biomarkers that can be used simultaneously to identify urological diseases could improve patient outcomes. The aim of this study was to evaluate a urological disease‐specific scoring system established with a machine learning (ML) approach using Ig N‐glycan signatures. Immunoglobulin N‐glycan signatures were analyzed by capillary electrophoresis from 1312 serum subjects with hormone‐sensitive prostate cancer (n = 234), castration‐resistant prostate cancer (n = 94), renal cell carcinoma (n = 100), upper urinary tract urothelial cancer (n = 105), bladder cancer (n = 176), germ cell tumors (n = 73), benign prostatic hyperplasia (n = 95), urosepsis (n = 145), and urinary tract infection (n = 21) as well as healthy volunteers (n = 269). Immunoglobulin N‐glycan signature data were used in a supervised‐ML model to establish a scoring system that gave the probability of the presence of a urological disease. Diagnostic performance was evaluated using the area under the receiver operating characteristic curve (AUC). The supervised‐ML urologic disease‐specific scores clearly discriminated the urological diseases (AUC 0.78–1.00) and found a distinct N‐glycan pattern that contributed to detect each disease. Limitations included the retrospective and limited pathological information regarding urological diseases. The supervised‐ML urological disease‐specific scoring system based on Ig N‐glycan signatures showed excellent diagnostic ability for nine urological diseases using a one‐time serum collection and could be a promising approach for the diagnosis of urological diseases.
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Affiliation(s)
- Hiromichi Iwamura
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Kei Mizuno
- Department of Urology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Shusuke Akamatsu
- Department of Urology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Shingo Hatakeyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.,Department of Advanced blood purification therapy, Hirosaki University Graduate School of Medicine, 036-8562, Hirosaki, Japan
| | - Yuki Tobisawa
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Shintaro Narita
- Department of Urology, Akita University Graduate School of Medicine, Akita, Japan
| | - Takuma Narita
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Shinichi Yamashita
- Department of Urology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | | | - Toshihiko Sakurai
- Department of Urology, Yamagata University Graduate School of Medicine, Yamagata, Japan
| | - Naoki Fujita
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Hirotake Kodama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Daisuke Noro
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Ikuko Kakizaki
- Department of Glycotechnology, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Shigeyuki Nakaji
- Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Ken Itoh
- Department of Glycotechnology, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.,Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Norihiko Tsuchiya
- Department of Urology, Yamagata University Graduate School of Medicine, Yamagata, Japan
| | - Akihiro Ito
- Department of Urology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tomonori Habuchi
- Department of Urology, Akita University Graduate School of Medicine, Akita, Japan
| | - Chikara Ohyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.,Department of Advanced blood purification therapy, Hirosaki University Graduate School of Medicine, 036-8562, Hirosaki, Japan
| | - Tohru Yoneyama
- Department of Glycotechnology, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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22
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Miura S, Sasaki A, Kasai S, Sugawara T, Maeda Y, Goto S, Kasai T, Shimizume N, Jung S, Iwane T, Itoh K, Matsubara A. Association of mitochondrial DNA haplogroup and hearing impairment with aging in Japanese general population of the Iwaki Health Promotion Project. J Hum Genet 2022; 67:369-375. [PMID: 35034960 PMCID: PMC9130095 DOI: 10.1038/s10038-022-01011-6] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 12/20/2021] [Accepted: 01/01/2022] [Indexed: 11/09/2022]
Abstract
Age-related hearing loss (ARHL) is a complex multifactorial disorder. Studies in animals, including mitochondria-mutator mice, and in human suggest that oxidative stress and mitochondrial disturbance play an important role in the pathoetiology of ARHL. Mitochondrial DNA (mtDNA) haplogroups are populations with genetically similar traits, and they have been reported to affect the mitochondrial function of oxidative phosphorylation. To gain further insights into the relationships between mitochondrial haplotypes and the susceptibility to cochlear aging, in this study, we aimed to elucidate how the differences in mtDNA haplogroups may affect ARHL development in Japanese general population. We focused on early onset ARHL, as the same mtDNA haplogroup can show either a negative or positive effect on systemic co-morbidities of ARHL that appear later in life. A total of 1167 participants of the Iwaki Health Promotion Project were surveyed in 2014, and 12 major haplotype groups (D4a, D4b, D5, G1, G2, M7a, M7b, A, B4, B5, N9, and F) were selected for the analysis. A total of 698 subjects aged 30 to 65 years were included in the statistical analysis, and the hearing loss group consisted of 112 males (40.3%) and 111 females (26.4%). Multiple logistic regression analysis showed that the male subjects belonging to haplogroup A had a significantly increased risk of hearing loss, whereas the female subjects belonging to haplogroup N9 had a significantly decreased risk of hearing loss. These results suggested that the mtDNA haplogroup may be an indicator for future risk of morbidity associated with ARHL.
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Affiliation(s)
- Shiori Miura
- Department of Otorhinolaryngology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Akira Sasaki
- Department of Otorhinolaryngology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
| | - Shuya Kasai
- Department of Stress Response Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Takayuki Sugawara
- Research Institute of Bio-System Informatics, Tohoku Chemical Co., Ltd, Morioka, Japan.,Center of Innovation Research Initiatives Organization, Hirosaki University, Hirosaki, Japan
| | - Yasunori Maeda
- Department of Otorhinolaryngology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Shinichi Goto
- Department of Otorhinolaryngology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Takashi Kasai
- Department of Otorhinolaryngology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Nami Shimizume
- Department of Otorhinolaryngology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Songee Jung
- Department of Digital Nutrition, Graduate School of Medicine, Hirosaki University, Hirosaki, Japan
| | - Takuro Iwane
- Hirosaki University COI Research Initiative Organization, Hirosaki University, Hirosaki, Japan
| | - Ken Itoh
- Department of Stress Response Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Atsushi Matsubara
- Department of Otorhinolaryngology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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23
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Wai KM, Kaori S, Itoh K, Shinya O, Uchikawa Y, Hayashi S, Shiraki A, Murashita K, Nakaji S, Ihara K. Telomere Length and Arterial Stiffness Reflected by Brachial-Ankle Pulse Wave Velocity: A Population-Based Cross-Sectional Study. J Pers Med 2021; 11:jpm11121278. [PMID: 34945752 PMCID: PMC8704522 DOI: 10.3390/jpm11121278] [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: 10/30/2021] [Revised: 11/16/2021] [Accepted: 11/25/2021] [Indexed: 11/16/2022] Open
Abstract
Telomere (TL) is a biomarker of biological aging, and its shortening is associated with major risk factors for cardiovascular diseases (CVD). This study aimed to identify whether TL is associated with arterial stiffness as reflected by brachial–ankle pulse wave velocity (baPWV). This population-based cross-sectional study involved 1065 individuals in the Iwaki area, Japan. Total TL length and TL G-tail length were measured by hybridization protection assay. The baPWV was measured on the right and left sides using a non-invasive vascular screening device. The associations between TL and baPWV were assessed by multivariate linear regression. Compared with the shortest total TL tertile, the longest total TL group showed a significant decrease in baPWV (lowest vs. highest tertile: adjusted beta: −41.24, 95% confidence interval (CI): −76.81, −5.68). The mean baPWV decreased with a longer TL (TL G-tail length: p trend < 0.001, total TL: p trend < 0.001). TL G-tail and total TL lengths were inversely associated with baPWV, implicating TL shortening in the development of CVD. This study provides evidence of the factors influencing CVD risks at a very early stage when individuals can still take necessary precautions before CVD gives rise to a symptomatic health outcome.
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Affiliation(s)
- Kyi Mar Wai
- Department of Social Medicine, Graduate School of Medicine, Hirosaki University, Hirosaki 036-8562, Japan; (S.K.); (O.S.); (S.N.); (K.I.)
- Department of Human Ecology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
- Correspondence: ; Tel.: +81-0172-39-5041; Fax: +81-0172-39-5038
| | - Sawada Kaori
- Department of Social Medicine, Graduate School of Medicine, Hirosaki University, Hirosaki 036-8562, Japan; (S.K.); (O.S.); (S.N.); (K.I.)
| | - Ken Itoh
- Center of Advanced Medical Science, Department of Stress Response Science, Graduate School of Medicine, Hirosaki University, Hirosaki 036-8562, Japan;
- Department of Mibyo Science, Graduate School of Medicine, Hirosaki University, Hirosaki 036-8562, Japan
| | - Okuyama Shinya
- Department of Social Medicine, Graduate School of Medicine, Hirosaki University, Hirosaki 036-8562, Japan; (S.K.); (O.S.); (S.N.); (K.I.)
| | - Yuka Uchikawa
- Research and Development Division, MiRTeL Company Limited, Hiroshima 734-0001, Japan;
| | - Sakura Hayashi
- Business Development Division, MiRTeL Company Limited, Hiroshima 734-0001, Japan;
| | - Akiko Shiraki
- Inspection Division, MiRTeL Company Limited, Hiroshima 734-0001, Japan;
| | - Koichi Murashita
- Center of Innovation, Research Initiatives Organization, Hirosaki University, Hirosaki 036-8562, Japan;
| | - Shigeyuki Nakaji
- Department of Social Medicine, Graduate School of Medicine, Hirosaki University, Hirosaki 036-8562, Japan; (S.K.); (O.S.); (S.N.); (K.I.)
- Department of Mibyo Science, Graduate School of Medicine, Hirosaki University, Hirosaki 036-8562, Japan
- Center of Innovation, Research Initiatives Organization, Hirosaki University, Hirosaki 036-8562, Japan;
| | - Kazushige Ihara
- Department of Social Medicine, Graduate School of Medicine, Hirosaki University, Hirosaki 036-8562, Japan; (S.K.); (O.S.); (S.N.); (K.I.)
- Department of Mibyo Science, Graduate School of Medicine, Hirosaki University, Hirosaki 036-8562, Japan
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24
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Nakahata N, Nakamura T, Kawarabayashi T, Seino Y, Ichii S, Ikeda Y, Amari M, Takatama M, Murashita K, Ihara K, Itoh K, Nakaji S, Shoji M. Age-Related Cognitive Decline and Prevalence of Mild Cognitive Impairment in the Iwaki Health Promotion Project. J Alzheimers Dis 2021; 84:1233-1245. [PMID: 34633321 DOI: 10.3233/jad-210699] [Citation(s) in RCA: 1] [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] [Indexed: 11/15/2022]
Abstract
BACKGROUND The Iwaki Health Promotion Project (IHPP) is a community-based study for the prevention of lifestyle-related diseases and improvement of quality of life. OBJECTIVE Between 2014 and 2017, a total of 4,442 Iwaki town residents from 19 to 93 years of age participated in annual surveys to clarify the natural course of age-related cognitive decline and mild cognitive impairment (MCI). METHODS Modified OLD and SED-11Q questionnaires, MMSE, Logical Memory II, educational history, and APOE genotypes were examined at the first screening. MCI and dementia were diagnosed at the second examination by detailed neurological examination, CDR, and MRI, and followed for 3 years. Spline regression analyses based on a linear mixed model was adopted for statistical analysis. RESULTS MMSE scores declined with age from 55 to 64 years. There was also interaction between levels of education and ages. At the second examination, 56 MCI and 5 dementia patients were identified. None of the MCI cases progressed to dementia during the 3 years. During follow-up examinations, 13 cases showed improved MMSE scores (0.95 point/year), 5 remained stable, and 7 deteriorated (-0.83 point/year). Five cases showed improved CDR-SOB scores (-0.28 point/year), 9 remained stable, and 6 deteriorated (0.3 point/year). CONCLUSION IHPP revealed that age- and education-related cognitive decline began and advanced from 55 years of age. The prevalence of MCI and dementia was estimated to be 5.9%in the Iwaki town cohort over 60 yeas of age. About 30%of MCI cases showed progression of cognitive decline.
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Affiliation(s)
- Naoko Nakahata
- Department of Rehabilitation Sciences, Division of Speech-Language-Hearing Therapy, School of Health Sciences, Hirosaki University of Health and Welfare, Hirosaki, Aomori, Japan.,Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Takumi Nakamura
- Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.,Department of Neurology, Gunma University Hospital, Maebashi, Japan
| | - Takeshi Kawarabayashi
- Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.,Department of Neurology, Gunma University Hospital, Maebashi, Japan.,Department of Neurology, Dementia Research Center, Geriatrics Research Institute and Hospital, Maebashi, Japan
| | - Yusuke Seino
- Department of Neurology, Hirosaki National Hospital, Hirosaki, Japan
| | - Sadanobu Ichii
- Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Yoshio Ikeda
- Department of Neurology, Gunma University Hospital, Maebashi, Japan
| | - Masakuni Amari
- Department of Neurology, Dementia Research Center, Geriatrics Research Institute and Hospital, Maebashi, Japan
| | - Masamitsu Takatama
- Department of Neurology, Dementia Research Center, Geriatrics Research Institute and Hospital, Maebashi, Japan
| | - Koichi Murashita
- Center of Innovation Research Initiatives Organization, Hirosaki University, Hirosaki, Aomori, Japan
| | - Kazunari Ihara
- Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Ken Itoh
- Department of Stress Response Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Shigeyuki Nakaji
- Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Mikio Shoji
- Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.,Department of Neurology, Gunma University Hospital, Maebashi, Japan.,Department of Neurology, Dementia Research Center, Geriatrics Research Institute and Hospital, Maebashi, Japan
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25
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Itoh K, Yamada R, Saida J, Ikeda K, Otomo T. Atomic-level characterization of free volume in the structure of Cu 67Zr 33amorphous alloy. J Phys Condens Matter 2021; 33:274001. [PMID: 33906162 DOI: 10.1088/1361-648x/abfc12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 04/27/2021] [Indexed: 06/12/2023]
Abstract
The structure of Cu67Zr33amorphous alloy was investigated in terms of packing density and free volume by using neutron, x-ray diffraction and reverse Monte Carlo (RMC) modelling. The RMC model was analysed by a method of decomposing the three-dimensional atomic configuration into fundamental polyhedral units (termed as 'holes' referencing the Bernal's works) of which faces are all triangles consisting of chemical bonds. Not only tetrahedral and octahedral holes but also other larger holes were identified. Moreover, the atomic packing fractions and free volumes in the respective polyhedral holes were evaluated with reference to those for the corresponding crystal structures. The results show that the distribution of free volumes for the larger holes can be described by the exponential function assuming that there are no energetic interactions between each other. On the other hand, the local structural fluctuations due to densely and loosely packed tetrahedral holes were observed, leading to the negative free volume spaces.
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Affiliation(s)
- K Itoh
- Graduate School of Education, Okayama University, 3-1-1 Tsushima-Naka, kita-ku, Okayama 700-8530, Japan
| | - R Yamada
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - J Saida
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - K Ikeda
- Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - T Otomo
- Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
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26
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Nakamura K, Kojima R, Uchino E, Ono K, Yanagita M, Murashita K, Itoh K, Nakaji S, Okuno Y. Health improvement framework for actionable treatment planning using a surrogate Bayesian model. Nat Commun 2021; 12:3088. [PMID: 34035243 PMCID: PMC8149666 DOI: 10.1038/s41467-021-23319-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 04/23/2021] [Indexed: 02/04/2023] Open
Abstract
Clinical decision-making regarding treatments based on personal characteristics leads to effective health improvements. Machine learning (ML) has been the primary concern of diagnosis support according to comprehensive patient information. A prominent issue is the development of objective treatment processes in clinical situations. This study proposes a framework to plan treatment processes in a data-driven manner. A key point of the framework is the evaluation of the actionability for personal health improvements by using a surrogate Bayesian model in addition to a high-performance nonlinear ML model. We first evaluate the framework from the viewpoint of its methodology using a synthetic dataset. Subsequently, the framework is applied to an actual health checkup dataset comprising data from 3132 participants, to lower systolic blood pressure and risk of chronic kidney disease at the individual level. We confirm that the computed treatment processes are actionable and consistent with clinical knowledge for improving these values. We also show that the improvement processes presented by the framework can be clinically informative. These results demonstrate that our framework can contribute toward decision-making in the medical field, providing clinicians with deeper insights.
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Affiliation(s)
- Kazuki Nakamura
- Research and Business Development Department, Kyowa Hakko Bio Co., Ltd., Tokyo, Japan
- Department of Biomedical Data Intelligence, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Ryosuke Kojima
- Department of Biomedical Data Intelligence, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Eiichiro Uchino
- Department of Biomedical Data Intelligence, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Koh Ono
- Department of Cardiovascular Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Motoko Yanagita
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Institute for the Advanced Study of Human Biology, Kyoto University, Kyoto, Japan
| | - Koichi Murashita
- Center of Innovation Research Initiatives Organization, Hirosaki University, Hirosaki, Japan
| | - Ken Itoh
- Department of Stress Response Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Shigeyuki Nakaji
- Department of Social Health, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Yasushi Okuno
- Department of Biomedical Data Intelligence, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
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27
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Yamamoto H, Suzuki M, Matsuta R, Sasaki K, Kang MI, Kami K, Tatara Y, Itoh K, Nakaji S. Capillary Electrophoresis Mass Spectrometry-Based Metabolomics of Plasma Samples from Healthy Subjects in a Cross-Sectional Japanese Population Study. Metabolites 2021; 11:metabo11050314. [PMID: 34068294 PMCID: PMC8153282 DOI: 10.3390/metabo11050314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/10/2021] [Accepted: 05/11/2021] [Indexed: 12/27/2022] Open
Abstract
For large-scale metabolomics, such as in cohort studies, normalization protocols using quality control (QC) samples have been established when using data from gas chromatography and liquid chromatography coupled to mass spectrometry. However, normalization protocols have not been established for capillary electrophoresis-mass spectrometry metabolomics. In this study, we performed metabolome analysis of 314 human plasma samples using capillary electrophoresis-mass spectrometry. QC samples were analyzed every 10 samples. The results of principal component analysis for the metabolome data from only the QC samples showed variations caused by capillary replacement in the first principal component score and linear variation with continuous measurement in the second principal component score. Correlation analysis between diagnostic blood tests and plasma metabolites normalized by the QC samples was performed for samples from 188 healthy subjects who participated in a Japanese population study. Five highly correlated pairs were identified, including two previously unidentified pairs in normal healthy subjects of blood urea nitrogen and guanidinosuccinic acid, and gamma-glutamyl transferase and cysteine glutathione disulfide. These results confirmed the validity of normalization protocols in capillary electrophoresis-mass spectrometry using large-scale metabolomics and comprehensive analysis.
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Affiliation(s)
- Hiroyuki Yamamoto
- Human Metabolome Technologies, Inc., 246-2 Mizukami, Kakuganji, Tsuruoka, Yamagata 997-0052, Japan; (M.S.); (R.M.); (K.S.); (M.-I.K.); (K.K.)
- Department of Metabolomics Innovation, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan;
- Correspondence: (H.Y.); (K.I.)
| | - Makoto Suzuki
- Human Metabolome Technologies, Inc., 246-2 Mizukami, Kakuganji, Tsuruoka, Yamagata 997-0052, Japan; (M.S.); (R.M.); (K.S.); (M.-I.K.); (K.K.)
| | - Rira Matsuta
- Human Metabolome Technologies, Inc., 246-2 Mizukami, Kakuganji, Tsuruoka, Yamagata 997-0052, Japan; (M.S.); (R.M.); (K.S.); (M.-I.K.); (K.K.)
| | - Kazunori Sasaki
- Human Metabolome Technologies, Inc., 246-2 Mizukami, Kakuganji, Tsuruoka, Yamagata 997-0052, Japan; (M.S.); (R.M.); (K.S.); (M.-I.K.); (K.K.)
| | - Moon-Il Kang
- Human Metabolome Technologies, Inc., 246-2 Mizukami, Kakuganji, Tsuruoka, Yamagata 997-0052, Japan; (M.S.); (R.M.); (K.S.); (M.-I.K.); (K.K.)
| | - Kenjiro Kami
- Human Metabolome Technologies, Inc., 246-2 Mizukami, Kakuganji, Tsuruoka, Yamagata 997-0052, Japan; (M.S.); (R.M.); (K.S.); (M.-I.K.); (K.K.)
| | - Yota Tatara
- Center for Advanced Medical Research, Department of Stress Response Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan;
| | - Ken Itoh
- Department of Metabolomics Innovation, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan;
- Center for Advanced Medical Research, Department of Stress Response Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan;
- Correspondence: (H.Y.); (K.I.)
| | - Shigeyuki Nakaji
- Department of Metabolomics Innovation, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan;
- Department of Social Health, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan
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28
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Ekuban FA, Zong C, Takikawa M, Morikawa K, Sakurai T, Ichihara S, Itoh K, Yamamoto M, Ohsako S, Ichihara G. Genetic ablation of Nrf2 exacerbates neurotoxic effects of acrylamide in mice. Toxicology 2021; 456:152785. [PMID: 33872730 DOI: 10.1016/j.tox.2021.152785] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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] [Received: 11/23/2020] [Revised: 02/20/2021] [Accepted: 04/12/2021] [Indexed: 12/20/2022]
Abstract
Acrylamide (ACR), a recognized neurotoxicant in humans and experimental animals, is widely used in industry and in food generated through Maillard reaction. Nuclear factor erythroid 2-related factor 2 (Nrf2) is a master regulator of the cellular defense system and activates antioxidants and cytoprotective genes. The exact roles of Nrf2 in environmental electrophile-induced neurotoxicity is poorly understood. The aim of this study was to determine the roles of Nrf2 in ACR-induced neurotoxicity including degeneration of monoaminergic axons and sensorimotor dysfunction. Male 10-week-old C57BL/6JJcl Nrf2-knockout mice and wild type (WT) counterparts were each divided into four groups of 12 and provided with drinking water containing acrylamide at 0, 67, 110 or 200 ppm for four weeks. The effects of acrylamide were examined by landing foot spread test, immunohistochemistry for noradrenaline (NA) and serotonin (5-HT)-containing axons and Iba1-positive microglia in the prefrontal cortex as well as quantitative real-time polymerase chain reaction (qRT-PCR) on antioxidant, proinflammatory and anti-inflammatory genes in the prefrontal cortex. Relative to the wild type, exposure of Nrf2-knockout mice to acrylamide increased hindlimb splay length, microglial area and process length as well as decreasing the density of NA and 5-HT-immunoreactive axons to a greater extent. Moreover, deletion of Nrf2 gene suppressed acrylamide-induced mRNA upregulation of Nrf2-antioxidants, NAD(P): quinone oxidoreductase 1 (NQO1), superoxide dismutase-1 (SOD-1) and heme oxygenase-1 (HO-1) as well as anti-inflammatory markers such as, arginase-1 (Arg1), found in the inflammatory zone-1 (Fizz1), chitinase-like 3 (Chi3l3), interleukin-4 receptor alpha (IL-4Rα), cluster of differentiation 206 (CD206) and transforming growth factor beta-1 (TGFβ1) while enhancing acrylamide-induced upregulation of pro-inflammatory cytokines, interleukin-1 beta (IL-1β), tumor necrosis-alpha (TNF-α) and inducible nitric oxide synthase (iNOS) in the prefrontal cortex. The results demonstrate susceptibility of mice lacking the Nrf2 gene to acrylamide-induced neurotoxicity and neuroinflammation with the activation of microglia. Moreover, the results suggest the role of Nrf2 not only in induction of antioxidant gene expression, but also in suppression of proinflammatory cytokine gene expression.
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Affiliation(s)
- Frederick Adams Ekuban
- Department of Occupational and Environmental Health, Tokyo University of Science, Noda, Japan
| | - Cai Zong
- Department of Occupational and Environmental Health, Tokyo University of Science, Noda, Japan
| | - Madoka Takikawa
- Department of Occupational and Environmental Health, Tokyo University of Science, Noda, Japan
| | - Kota Morikawa
- Department of Occupational and Environmental Health, Tokyo University of Science, Noda, Japan
| | - Toshihiro Sakurai
- Department of Occupational and Environmental Health, Tokyo University of Science, Noda, Japan
| | - Sahoko Ichihara
- Department of Environmental and Preventive Medicine, Jichi Medical University School of Medicine, Shimotsuke, Japan
| | - Ken Itoh
- Department of Stress Response Hirosaki University, Hirosaki, Japan
| | - Masayuki Yamamoto
- Department of Molecular Biochemistry Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Seiichiroh Ohsako
- Laboratory of Environmental Health Sciences, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Gaku Ichihara
- Department of Occupational and Environmental Health, Tokyo University of Science, Noda, Japan.
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29
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Matsumoto M, Suganuma H, Ozato N, Shimizu S, Katashima M, Katsuragi Y, Mikami T, Itoh K, Nakaji S. Association between Serum Concentration of Carotenoid and Visceral Fat. Nutrients 2021; 13:nu13030912. [PMID: 33799771 PMCID: PMC7999533 DOI: 10.3390/nu13030912] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 01/29/2021] [Revised: 02/27/2021] [Accepted: 03/08/2021] [Indexed: 01/17/2023] Open
Abstract
Consumption of fruits and vegetables rich in carotenoids has been widely reported to prevent cardiovascular diseases. However, the relationship between serum carotenoid concentrations and visceral fat area (VFA), which is considered a better predictor of cardiovascular diseases than the body-mass index (BMI) and waist circumference, remains unclear. Therefore, we examined the relationship in healthy individuals in their 20s or older, stratified by sex and age, to compare the relationship between serum carotenoid concentrations and VFA and BMI. The study was conducted on 805 people, the residents in Hirosaki city, Aomori prefecture, who underwent a health checkup. An inverse relationship between serum carotenoid concentrations and VFA and BMI was observed only in women. In addition, the results were independent of the intake of dietary fiber, which is mainly supplied from vegetables as well as carotenoids. This suggests that consumption of a diet rich in carotenoids (especially lutein and beta-carotene) is associated with lower VFA, which is a good predictor of cardiovascular disease, especially in women. This study is the first to comprehensively evaluate the association between serum carotenoid levels and VFA in healthy individuals.
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Affiliation(s)
- Mai Matsumoto
- Innovation Division, KAGOME CO. LTD., 17 Nishitomiyama, Nasushiobara, Tochigi 329-2762, Japan; (H.S.); (S.S.)
- Correspondence: ; Tel.: +81-80-1581-1874
| | - Hiroyuki Suganuma
- Innovation Division, KAGOME CO. LTD., 17 Nishitomiyama, Nasushiobara, Tochigi 329-2762, Japan; (H.S.); (S.S.)
| | - Naoki Ozato
- Department of Active Life Promotion Sciences, Graduate School of Medicine, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan; (N.O.); (M.K.); (Y.K.)
- Health & Wellness Products Research Laboratories, Kao Corporation, Tokyo 131-8501, Japan
| | - Sunao Shimizu
- Innovation Division, KAGOME CO. LTD., 17 Nishitomiyama, Nasushiobara, Tochigi 329-2762, Japan; (H.S.); (S.S.)
- Department of Vegetable Life Science, Graduate School of Medicine, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan;
- Innovation Center for Health Promotion, Graduate School of Medicine, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan; (T.M.); (S.N.)
| | - Mitsuhiro Katashima
- Department of Active Life Promotion Sciences, Graduate School of Medicine, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan; (N.O.); (M.K.); (Y.K.)
- Health & Wellness Products Research Laboratories, Kao Corporation, Tokyo 131-8501, Japan
| | - Yoshihisa Katsuragi
- Department of Active Life Promotion Sciences, Graduate School of Medicine, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan; (N.O.); (M.K.); (Y.K.)
- Health & Wellness Products Research Laboratories, Kao Corporation, Tokyo 131-8501, Japan
| | - Tatsuya Mikami
- Innovation Center for Health Promotion, Graduate School of Medicine, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan; (T.M.); (S.N.)
| | - Ken Itoh
- Department of Vegetable Life Science, Graduate School of Medicine, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan;
- Department of Stress Response Science, Center for Advanced Medical Research, Graduate School of Medicine, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
| | - Shigeyuki Nakaji
- Innovation Center for Health Promotion, Graduate School of Medicine, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan; (T.M.); (S.N.)
- Department of Social Medicine, Graduate School of Medicine, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan
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30
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Chukai Y, Iwamoto T, Itoh K, Tomita H, Ozaki T. Characterization of mitochondrial calpain-5. Biochim Biophys Acta Mol Cell Res 2021; 1868:118989. [PMID: 33607190 DOI: 10.1016/j.bbamcr.2021.118989] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 01/21/2021] [Accepted: 02/09/2021] [Indexed: 01/08/2023]
Abstract
Calpain, a Ca2+-dependent cysteine protease, plays a significant role in gene expression, signal transduction, and apoptosis. Mutations in human calpain-5 cause autosomal dominant neovascular inflammatory vitreoretinopathy and the inhibition of calpain-5 activity may constitute an effective therapeutic strategy for this condition. Although calpain-5 is ubiquitously expressed in mammalian tissues and was recently found to be present in the mitochondria as well as in the cytosol, its physiological function and enzymological properties require further elucidation. The objective of the current study was to determine the characteristics of mitochondrial calpain-5 in porcine retinas, human HeLa cells, and C57BL/6J mice using subcellular fractionation. We found that mitochondrial calpain-5 was proteolyzed/autolyzed at low Ca2+ concentrations in mitochondria isolated from porcine retinas and by thapsigargin-induced endoplasmic reticulum (ER) stress in HeLa cells. Further, mitochondrial calpain-5, as opposed to cytosolic calpain-5, was activated during the early stages of ER stress in C57BL/6J mice. These results showed that mitochondrial calpain-5 was activated at low Ca2+ concentrations in vitro and in response to ER stress in vivo. The present study provides new insights into a novel calpain system in the mitochondria that includes stress responses during the early phases of ER stress. Further, activation of mitochondrial calpain-5 by treatment using low-molecular-weight compounds may have therapeutic potential for diseases related to ER stress, including neurodegenerative diseases, metabolic syndromes, diabetes, and cancer.
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Affiliation(s)
- Yusaku Chukai
- Laboratory of Cell Biochemistry, Department of Biological Science, Graduate School of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551, Japan
| | - Takeshi Iwamoto
- Laboratory of Cell Biochemistry, Department of Biological Science, Graduate School of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551, Japan
| | - Ken Itoh
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, 5 Zaifuchou, Hirosaki, Aomori 036-8562, Japan
| | - Hiroshi Tomita
- Laboratory of Visual Neuroscience, Department of Biological Science, Graduate School of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551, Japan
| | - Taku Ozaki
- Laboratory of Cell Biochemistry, Department of Biological Science, Graduate School of Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551, Japan.
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Maeda Y, Sasaki A, Kasai S, Goto S, Nishio SY, Sawada K, Tokuda I, Itoh K, Usami SI, Matsubara A. Correction to: Prevalence of the mitochondrial 1555 A>G and 1494 C>T mutations in a community-dwelling population in Japan. Hum Genome Var 2020; 7:36. [PMID: 33133630 PMCID: PMC7591919 DOI: 10.1038/s41439-020-00123-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Yasunori Maeda
- Department of Otorhinolaryngology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Akira Sasaki
- Department of Otorhinolaryngology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Shuya Kasai
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Shinichi Goto
- Department of Otorhinolaryngology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Shin-Ya Nishio
- Department of Otorhinolaryngology, Shinshu University School of Medicine, Matsumoto, Japan.,Department of Hearing Implant Sciences, Shinshu University School of Medicine, Matsumoto, Japan
| | - Kaori Sawada
- Department of Social Medicine, Hirosaki University School of Medicine, Hirosaki, Japan
| | - Itoyo Tokuda
- Department of Social Medicine, Hirosaki University School of Medicine, Hirosaki, Japan
| | - Ken Itoh
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Shin-Ichi Usami
- Department of Otorhinolaryngology, Shinshu University School of Medicine, Matsumoto, Japan.,Department of Hearing Implant Sciences, Shinshu University School of Medicine, Matsumoto, Japan
| | - Atsushi Matsubara
- Department of Otorhinolaryngology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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Shibutani S, Yonekura M, Nosaka M, Kawamura Y, Hanada K, Kasai S, Yokota T, Higuma T, Itoh K, Tomita H. Characterizing genetic variants for DAG and IP3 signalling pathways in severe cases of coronary spastic angina. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
We previously reported that the activity of phospholipase C (PLC), a key molecule for intracellular calcium signaling, was enhanced in patients with coronary spastic angina (CSA). Furthermore, we found PLC-δ1 864 G to A mutation in about 10% of the male CSA patients. However, comprehensive understanding of genetic role in the pathogenesis of CSA remains to be elucidated.
Purpose
We tested the hypothesis that variants in the genes responsible for contraction signaling, especially a Ca2+-dependent mechanism, plays an important role in the pathogenesis of CSA.
Methods and results
Exome sequencing was performed to genotype comprehensively CSA cohort, enabling investigation of 258 gene network for diacylglycerol (DAG) and inositol trisphosphate (IP3) signallings, which are responsible for contraction signaling in the vascular smooth muscle cell (VSMC) by a Ca2+-dependent mechanism.
The study population included 30 Japanese patients with severe cases of CSA (18 men and 12 women with a mean age of 62.2±10.1 years). In 23 patients, ST segment elevation was recorded on the electrocardiogram during a spontaneous attack. In other 3 patients, ventricular fibrillation occurred following CSA attacks. The rests were diagnosed by ECG changes and elevated cardiac enzymes following CSA attacks. Genetic information from these CSA patients were compared with those from 914 healthy controls.
Frequencies of 17 common, functional polymorphisms of DAG and IP3 signallings were statistically similar to those of healthy controls. By high-quality (Call Quality ≥20, Read Depth ≥10), and predicted-deleterious (CADD score ≥20) filterings, the number of the candidate genes were narrowed from 234,445 to 17,738, and by selecting genes for DAG and IP3 signallings, further narrowed to 208 genes. Compared with 914 healthy controls, DAG and IP3 signalling genes revealed 26 variants in 15 genes in CSA cases, and by further filtering for rare (914 healthy control frequency <1%), 21 variants in 12 genes were found. They shared variants in G protein subunit alpha q (GNAQ), phospholipase C beta 3 (PLCB3), inositol 1,4,5-trisphosphate receptor type 3 (ITPR3), glutamate ionotropic receptor NMDA type subunit 2D (GRIN2D) in ≥5 cases. By filtering for high-quality, predicted-deleterious, and rare, genetic variants related with DAG and IP3 signalling were more found in severe CSA patients compared with healthy controls (CSA 4.33/person vs healthy controls 2.60 /person).
Conclusions
These findings indicate genetic heterogeneity in CSA susceptibility and a likely polygenic basis, giving a cumulative effect on DAG and IP3 signalling pathways in a subset of individual CSA patients. Study of larger cohorts is warranted to define genetic risk factors for CSA.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- S Shibutani
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - M Yonekura
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - M Nosaka
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Y Kawamura
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - K Hanada
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - S Kasai
- Hirosaki University, Stress Response Science, Hirosaki, Japan
| | - T Yokota
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Higuma
- St. Marianna University School of Medicine, Cardiology, Kawasaki, Japan
| | - K Itoh
- Hirosaki University, Stress Response Science, Hirosaki, Japan
| | - H Tomita
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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Engler MJ, Mimura J, Yamazaki S, Itoh K. JDP2 is directly regulated by ATF4 and modulates TRAIL sensitivity by suppressing the ATF4-DR5 axis. FEBS Open Bio 2020; 10:2771-2779. [PMID: 33108704 PMCID: PMC7714084 DOI: 10.1002/2211-5463.13017] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 10/16/2020] [Accepted: 10/20/2020] [Indexed: 02/06/2023] Open
Abstract
Jun dimerization protein 2 (JDP2) is a bZip‐type transcription factor, which acts as a repressor or activator of several cellular processes, including cell differentiation and chromatin remodeling. Previously, we found that a stress‐responsive transcription factor, known as activating transcription factor 4 (ATF4), enhances JDP2 gene expression in human astrocytoma U373MG and cervical cancer HeLa cells; however, the role of JDP2 in the ATF4‐mediated stress response remained unclear. Here, we reported that siRNA‐mediated JDP2 knockdown enhances the expression of several ATF4 target genes, including ASNS, and death receptors 4 and 5 (DR4 and DR5) in HeLa cells. In addition, the results of a transient reporter assay indicate that JDP2 overexpression represses ER stress‐mediated DR5 promoter activation suggesting that JDP2 negatively regulates ATF4‐mediated gene expression. Curiously, knockdown of JDP2 increases the sensitivity of cells to TNF‐related apoptosis‐inducing ligand (TRAIL), which induces apoptosis in cancer cells through DR4 and DR5. These results indicate that JDP2 functions as a negative feedback regulator of the ATF4 pathway and contributes to TRAIL resistance in cancer cells.
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Affiliation(s)
- Máté János Engler
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Japan
| | - Junsei Mimura
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Japan
| | - Shun Yamazaki
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Japan
| | - Ken Itoh
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Japan
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Maeda Y, Sasaki A, Kasai S, Goto S, Nishio SY, Sawada K, Tokuda I, Itoh K, Usami SI, Matsubara A. Prevalence of the mitochondrial 1555 A>G and 1494 C>T mutations in a community-dwelling population in Japan. Hum Genome Var 2020; 7:27. [PMID: 33014404 PMCID: PMC7501278 DOI: 10.1038/s41439-020-00115-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 07/06/2020] [Revised: 08/07/2020] [Accepted: 08/13/2020] [Indexed: 02/04/2023] Open
Abstract
Single nucleotide polymorphisms in mitochondrial DNA, such as mitochondrial 1555 A>G (m.1555 A>G) and mitochondrial 1494 C>T (m.1494 C>T), are known to be causative mutations of nonsyndromic hearing loss following exposure to aminoglycoside antibiotics. The prevalence of the m.1555 A>G and m.1494 C>T mutations has not been reported for the general population in Japan. The purpose of this study was to investigate the prevalence of m.1555 A>G and m.1494 C>T mutations in a community-dwelling population in Japan in order to prevent aminoglycoside-induced hearing loss. We recruited participants older than 20 years of age to the Iwaki Health Promotion Project in 2014, 2015, and 2016, resulting in the recruitment of 1,683 participants. For each participant, we performed a hearing test and a genetic test for the m.1555 A>G and m.1494 C>T mutations using the TaqMan genotyping method. The m.1555 A>G mutation was detected in only 1 of the 1,683 participants (0.06%). This carrier of the m.1555 A>G mutation was a 69-year-old male with bilateral, symmetric, and high-frequency hearing loss. We provided genetic counseling and distributed a drug card advising him to avoid the administration of aminoglycoside antibiotics. In contrast, the m.1494 C>T mutation was not detected in this study population. Researchers in Japan have measured the prevalence of two hearing loss mutations associated with antibiotic use in the general population. Two mutations in mitochondrial DNA are known to cause hearing loss upon exposure to aminoglycoside antibiotics such as gentamicin. One mutation is found in 3% of Japanese hearing-impaired outpatients, but the frequency in the general population is unknown. A team led by Akira Sasaki of Hirosaki University carried out genetic and hearing tests in 1,683 community-dwelling subjects. They found one person who had one of the mutations. Although this subject had no known history of aminoglycoside antibiotic injection, he exhibited hearing loss at high frequencies. He was provided with genetic counseling and a drug use warning card. The second mutation was not found in the study population.
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Affiliation(s)
- Yasunori Maeda
- Department of Otorhinolaryngology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Akira Sasaki
- Department of Otorhinolaryngology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Shuya Kasai
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Shinichi Goto
- Department of Otorhinolaryngology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Shin-Ya Nishio
- Department of Otorhinolaryngology, Shinshu University School of Medicine, Matsumoto, Japan.,Department of Hearing Implant Sciences, Shinshu University School of Medicine, Matsumoto, Japan
| | - Kaori Sawada
- Department of Social Medicine, Hirosaki University School of Medicine, Hirosaki, Japan
| | - Itoyo Tokuda
- Department of Social Medicine, Hirosaki University School of Medicine, Hirosaki, Japan
| | - Ken Itoh
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Shin-Ichi Usami
- Department of Otorhinolaryngology, Shinshu University School of Medicine, Matsumoto, Japan.,Department of Hearing Implant Sciences, Shinshu University School of Medicine, Matsumoto, Japan
| | - Atsushi Matsubara
- Department of Otorhinolaryngology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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Shimizu S, Mimura J, Hasegawa T, Shimizu E, Imoto S, Tsushima M, Kasai S, Yamazaki H, Ushida Y, Suganuma H, Tomita H, Yamamoto M, Nakaji S, Itoh K. Association of single nucleotide polymorphisms in the NRF2 promoter with vascular stiffness with aging. PLoS One 2020; 15:e0236834. [PMID: 32780748 PMCID: PMC7418968 DOI: 10.1371/journal.pone.0236834] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 07/14/2020] [Indexed: 12/26/2022] Open
Abstract
Purpose Pulse wave velocity (PWV), an indicator of vascular stiffness, increases with age and is increasingly recognized as an independent risk factor for cardiovascular disease (CVD). Although many mechanical and chemical factors underlie the stiffness of the elastic artery, genetic risk factors related to age-dependent increases in PWV in apparently healthy people are largely unknown. The transcription factor nuclear factor E2 (NF-E2)-related factor 2 (Nrf2), which is activated by unidirectional vascular pulsatile shear stress or oxidative stress, regulates vascular redox homeostasis. Previous reports have shown that a SNP in the NRF2 gene regulatory region (−617C>A; hereafter called SNP−617) affects NRF2 gene expression such that the minor A allele confers lower gene expression compared to the C allele, and it is associated with various diseases, including CVD. We aimed to investigate whether SNP−617 affects vascular stiffness with aging in apparently healthy people. Methods Analyzing wide-ranging data obtained from a public health survey performed in Japan, we evaluated whether SNP−617 affected brachial-ankle PWV (baPWV) in never-smoking healthy subjects (n = 642). We also evaluated the effects of SNP−617 on other cardiovascular and blood test measurements. Results We have shown that not only AA carriers (n = 55) but also CA carriers (n = 247) show arterial stiffness compared to CC carriers (n = 340). Furthermore, SNP−617 also affected blood pressure indexes such as systolic blood pressure and mean arterial pressure but not the ankle brachial pressure index, an indicator of atherosclerosis. Multivariate analysis showed that SNP−617 accelerates the incremental ratio of baPWV with age. Conclusions This study is the first to show that SNP−617 affects the age-dependent increase in vascular stiffness. Our results indicate that low NRF2 activity induces premature vascular aging and could be targeted for the prevention of cardiovascular diseases associated with aging.
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Affiliation(s)
- Sunao Shimizu
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
- Department of Nature & Wellness Research, Innovation Division, Kagome Co., Ltd. Nasushiobara, Tochigi, Japan
| | - Junsei Mimura
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Takanori Hasegawa
- Health Intelligence Center, The University of Tokyo, Minato-ku, Tokyo, Japan
| | - Eigo Shimizu
- Human Genome Center, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
| | - Seiya Imoto
- Health Intelligence Center, The University of Tokyo, Minato-ku, Tokyo, Japan
- Human Genome Center, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
| | - Michiko Tsushima
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Shuya Kasai
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Hiromi Yamazaki
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Yusuke Ushida
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Hiroyuki Suganuma
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Hirofumi Tomita
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Masayuki Yamamoto
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Shigeyuki Nakaji
- Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Ken Itoh
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
- Department of Vegetable Life Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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Matsumoto M, Waki N, Suganuma H, Takahashi I, Kurauchi S, Sawada K, Tokuda I, Misawa M, Ando M, Itoh K, Ihara K, Nakaji S. Association between Biomarkers of Cardiovascular Diseases and the Blood Concentration of Carotenoids among the General Population without Apparent Illness. Nutrients 2020; 12:nu12082310. [PMID: 32752047 PMCID: PMC7469056 DOI: 10.3390/nu12082310] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 06/01/2020] [Revised: 07/27/2020] [Accepted: 07/30/2020] [Indexed: 12/12/2022] Open
Abstract
Several studies have demonstrated that carotenoid-rich vegetables are useful against cardiovascular diseases (CVDs). However, it is still unclear when a healthy population should start eating these vegetables to prevent CVDs. In this study, we evaluated the role of carotenoids in CVD markers in healthy subjects using age-stratified analysis. We selected 1350 subjects with no history of apparent illness who were undergoing health examinations. We then evaluated the relationship between the serum concentrations of six major carotenoids as well as their total, and nine CVD markers (i.e., body mass index (BMI), pulse wave velocity (PWV), systolic blood pressure (SBP), diastolic blood pressure (DBP), Homeostatic Model Assessment of Insulin Resistance (HOMA-IR), blood insulin, fasting blood glucose (FBG), triglycerides (TGs), and high-density lipoprotein (HDL) cholesterol) using multiple regression analysis. It was found that the total carotenoid level was significantly associated with seven markers other than BMI and FBG in males and with eight markers other than DBP in females. Many of these relationships were independent of lifestyle habits. Many significant relationships were found in young males (aged 20-39) and middle-aged females (aged 40-59). These findings can be used as lifestyle guidance for disease prevention although the causal relationships should be confirmed.
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Affiliation(s)
- Mai Matsumoto
- Innovation Division, KAGOME CO. LTD., 17 Nishitomiyama, Nasushiobara, Tochigi 329-2762, Japan; (N.W.); (H.S.)
- Correspondence: ; Tel.: +81-80-1581-1874
| | - Naoko Waki
- Innovation Division, KAGOME CO. LTD., 17 Nishitomiyama, Nasushiobara, Tochigi 329-2762, Japan; (N.W.); (H.S.)
| | - Hiroyuki Suganuma
- Innovation Division, KAGOME CO. LTD., 17 Nishitomiyama, Nasushiobara, Tochigi 329-2762, Japan; (N.W.); (H.S.)
| | - Ippei Takahashi
- Graduate School of Medicine, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan; (I.T.); (S.K.); (K.S.); (I.T.); (M.M.); (M.A.); (K.I.); (K.I.); (S.N.)
| | - Sizuka Kurauchi
- Graduate School of Medicine, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan; (I.T.); (S.K.); (K.S.); (I.T.); (M.M.); (M.A.); (K.I.); (K.I.); (S.N.)
| | - Kahori Sawada
- Graduate School of Medicine, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan; (I.T.); (S.K.); (K.S.); (I.T.); (M.M.); (M.A.); (K.I.); (K.I.); (S.N.)
| | - Itoyo Tokuda
- Graduate School of Medicine, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan; (I.T.); (S.K.); (K.S.); (I.T.); (M.M.); (M.A.); (K.I.); (K.I.); (S.N.)
| | - Mina Misawa
- Graduate School of Medicine, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan; (I.T.); (S.K.); (K.S.); (I.T.); (M.M.); (M.A.); (K.I.); (K.I.); (S.N.)
| | - Masataka Ando
- Graduate School of Medicine, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan; (I.T.); (S.K.); (K.S.); (I.T.); (M.M.); (M.A.); (K.I.); (K.I.); (S.N.)
| | - Ken Itoh
- Graduate School of Medicine, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan; (I.T.); (S.K.); (K.S.); (I.T.); (M.M.); (M.A.); (K.I.); (K.I.); (S.N.)
| | - Kazushige Ihara
- Graduate School of Medicine, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan; (I.T.); (S.K.); (K.S.); (I.T.); (M.M.); (M.A.); (K.I.); (K.I.); (S.N.)
| | - Shigeyuki Nakaji
- Graduate School of Medicine, Hirosaki University, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan; (I.T.); (S.K.); (K.S.); (I.T.); (M.M.); (M.A.); (K.I.); (K.I.); (S.N.)
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Yokono Y, Hanada K, Narita M, Tatara Y, Kawamura Y, Miura N, Kitayama K, Nakata M, Nozaka M, Kato T, Kudo N, Tsushima M, Toyama Y, Itoh K, Tomita H. Blockade of PAR-1 Signaling Attenuates Cardiac Hypertrophy and Fibrosis in Renin-Overexpressing Hypertensive Mice. J Am Heart Assoc 2020; 9:e015616. [PMID: 32495720 PMCID: PMC7429042 DOI: 10.1161/jaha.119.015616] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Background Although PAR‐1 (protease‐activated receptor‐1) exerts important functions in the pathophysiology of the cardiovascular system, the role of PAR‐1 signaling in heart failure development remains largely unknown. We tested the hypothesis that PAR‐1 signaling inhibition has protective effects on the progression of cardiac remodeling induced by chronic renin–angiotensin system activation using renin‐overexpressing hypertensive (Ren‐Tg) mice. Methods and Results We treated 12‐ to 16‐week‐old male wild‐type (WT) mice and Ren‐Tg mice with continuous subcutaneous infusion of the PAR‐1 antagonist SCH79797 or vehicle for 4 weeks. The thicknesses of interventricular septum and the left ventricular posterior wall were greater in Ren‐Tg mice than in WT mice, and SCH79797 treatment significantly decreased these thicknesses in Ren‐Tg mice. The cardiac fibrosis area and monocyte/macrophage deposition were greater in Ren‐Tg mice than in WT mice, and both conditions were attenuated by SCH79797 treatment. Cardiac mRNA expression levels of PAR‐1, TNF‐α (tumor necrosis factor‐α), TGF‐β1 (transforming growth factor‐β1), and COL3A1 (collagen type 3 α1 chain) and the ratio of β‐myosin heavy chain (β‐MHC) to α‐MHC were all greater in Ren‐Tg mice than in WT mice; SCH79797 treatment attenuated these increases in Ren‐Tg mice. Prothrombin fragment 1+2 concentration and factor Xa in plasma were greater in Ren‐Tg mice than in WT mice, and both conditions were unaffected by SCH79797 treatment. In isolated cardiac fibroblasts, both thrombin and factor Xa enhanced ERK1/2 (extracellular signal‐regulated kinase 1/2) phosphorylation, and SCH79797 pretreatment abolished this enhancement. Furthermore, gene expression of PAR‐1, TGF‐β1, and COL3A1 were enhanced by factor Xa, and all were inhibited by SCH79797. Conclusions The results indicate that PAR‐1 signaling is involved in cardiac remodeling induced by renin–angiotensin system activation, which may provide a novel therapeutic target for heart failure.
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Affiliation(s)
- Yoshikazu Yokono
- Department of Cardiology and Nephrology Hirosaki University Graduate School of Medicine Hirosaki Japan
| | - Kenji Hanada
- Department of Cardiology and Nephrology Hirosaki University Graduate School of Medicine Hirosaki Japan
| | - Masato Narita
- Department of Cardiology and Nephrology Hirosaki University Graduate School of Medicine Hirosaki Japan
| | - Yota Tatara
- Department of Glycotechnology Center for Advanced Medical Research Hirosaki University Graduate School of Medicine Hirosaki Japan
| | - Yousuke Kawamura
- Department of Cardiology and Nephrology Hirosaki University Graduate School of Medicine Hirosaki Japan
| | - Naotake Miura
- Department of Cardiology and Nephrology Hirosaki University Graduate School of Medicine Hirosaki Japan
| | - Kazutaka Kitayama
- Department of Cardiology and Nephrology Hirosaki University Graduate School of Medicine Hirosaki Japan
| | - Masamichi Nakata
- Department of Cardiology and Nephrology Hirosaki University Graduate School of Medicine Hirosaki Japan
| | - Masashi Nozaka
- Department of Cardiology and Nephrology Hirosaki University Graduate School of Medicine Hirosaki Japan
| | - Tomo Kato
- Department of Cardiology and Nephrology Hirosaki University Graduate School of Medicine Hirosaki Japan
| | - Natsumi Kudo
- Department of Cardiology and Nephrology Hirosaki University Graduate School of Medicine Hirosaki Japan
| | - Michiko Tsushima
- Department of Cardiology and Nephrology Hirosaki University Graduate School of Medicine Hirosaki Japan
| | - Yuichi Toyama
- Department of Cardiology and Nephrology Hirosaki University Graduate School of Medicine Hirosaki Japan
| | - Ken Itoh
- Department of Stress Response Science Center for Advanced Medical Research Hirosaki University Graduate School of Medicine Hirosaki Japan
| | - Hirofumi Tomita
- Department of Cardiology and Nephrology Hirosaki University Graduate School of Medicine Hirosaki Japan
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38
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Yamazaki H, Kasai S, Mimura J, Ye P, Inose-Maruyama A, Tanji K, Wakabayashi K, Mizuno S, Sugiyama F, Takahashi S, Sato T, Ozaki T, Cavener DR, Yamamoto M, Itoh K. Ribosome binding protein GCN1 regulates the cell cycle and cell proliferation and is essential for the embryonic development of mice. PLoS Genet 2020; 16:e1008693. [PMID: 32324833 PMCID: PMC7179835 DOI: 10.1371/journal.pgen.1008693] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 08/21/2019] [Accepted: 02/22/2020] [Indexed: 12/24/2022] Open
Abstract
Amino acids exert many biological functions, serving as allosteric regulators and neurotransmitters, as constituents in proteins and as nutrients. GCN2-mediated phosphorylation of eukaryotic initiation factor 2 alpha (elF2α) restores homeostasis in response to amino acid starvation (AAS) through the inhibition of the general translation and upregulation of amino acid biosynthetic enzymes and transporters by activating the translation of Gcn4 and ATF4 in yeast and mammals, respectively. GCN1 is a GCN2-binding protein that possesses an RWD binding domain (RWDBD) in its C-terminus. In yeast, Gcn1 is essential for Gcn2 activation by AAS; however, the roles of GCN1 in mammals need to be established. Here, we revealed a novel role of GCN1 that does not depend on AAS by generating two Gcn1 mutant mouse lines: Gcn1-knockout mice (Gcn1 KO mice (Gcn1-/-)) and RWDBD-deleted mutant mice (Gcn1ΔRWDBD mice). Both mutant mice showed growth retardation, which was not observed in the Gcn2 KO mice, such that the Gcn1 KO mice died at the intermediate stage of embryonic development because of severe growth retardation, while the Gcn1ΔRWDBD embryos showed mild growth retardation and died soon after birth, most likely due to respiratory failure. Extension of pregnancy by 24 h through the administration of progesterone to the pregnant mothers rescued the expression of differentiation markers in the lungs and prevented lethality of the Gcn1ΔRWDBD pups, indicating that perinatal lethality of the Gcn1ΔRWDBD embryos was due to simple growth retardation. Similar to the yeast Gcn2/Gcn1 system, AAS- or UV irradiation-induced elF2α phosphorylation was diminished in the Gcn1ΔRWDBD mouse embryonic fibroblasts (MEFs), suggesting that GCN1 RWDBD is responsible for GCN2 activity. In addition, we found reduced cell proliferation and G2/M arrest accompanying a decrease in Cdk1 and Cyclin B1 in the Gcn1ΔRWDBD MEFs. Our results demonstrated, for the first time, that GCN1 is essential for both GCN2-dependent stress response and GCN2-independent cell cycle regulation. The stress response at the translational level is an energetically cost-saving mechanism because translation consumes a considerable amount of energy. Upon exposure to stresses such as that from amino acid starvation (AAS), the translational initiation factor eIF2α is phosphorylated, which represses general translation to save energy. At the same time, eIF2α phosphorylation increases the selective translation of cytoprotective proteins, such as ATF4, that transcriptionally activate the stress response, promoting cell survival. Among four eIF2α kinases, GCN2 responds to AAS and phosphorylates eIF2α. In yeast, Gcn1 is required for Gcn2 activation by AAS, but the roles of GCN1 in mammals remain to be established. Here, we show that GCN1 is involved in GCN2-mediated eIF2α phosphorylation after AAS and UV radiation by generating Gcn1 mutant mice. Interestingly, GCN1 not only regulates the eIF2α-mediated stress response but also the cell cycle and cell proliferation in a GCN2-independent manner. Taking these findings together, we propose that GCN1 integrates cellular information and coordinates the cellular stress response to enhance viability.
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Affiliation(s)
- Hiromi Yamazaki
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University, Hirosaki, Japan
| | - Shuya Kasai
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University, Hirosaki, Japan
| | - Junsei Mimura
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University, Hirosaki, Japan
| | - Peng Ye
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University, Hirosaki, Japan
| | - Atsushi Inose-Maruyama
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University, Hirosaki, Japan
| | - Kunikazu Tanji
- Department of Neuropathology, Institute of Brain Science Graduate School of Medicine, Hirosaki University, Hirosaki, Japan
| | - Koichi Wakabayashi
- Department of Neuropathology, Institute of Brain Science Graduate School of Medicine, Hirosaki University, Hirosaki, Japan
| | - Seiya Mizuno
- Transborder Medical Research Center and Laboratory Animal Resource Center, University of Tsukuba, Tsukuba, Japan
| | - Fumihiro Sugiyama
- Transborder Medical Research Center and Laboratory Animal Resource Center, University of Tsukuba, Tsukuba, Japan
| | - Satoru Takahashi
- Transborder Medical Research Center and Laboratory Animal Resource Center, University of Tsukuba, Tsukuba, Japan
| | - Tsubasa Sato
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University, Hirosaki, Japan.,Department of Chemistry and Biological Sciences, Faculty of Science and Engineering, Iwate University, Morioka, Japan
| | - Taku Ozaki
- Department of Chemistry and Biological Sciences, Faculty of Science and Engineering, Iwate University, Morioka, Japan
| | - Douglas R Cavener
- Department of Biology, Center for Cellular Dynamics and the Huck Institute of the Life Sciences, Pennsylvania State University, University Park, Pennsylvania, United States of America
| | - Masayuki Yamamoto
- Department of Medical Biochemistry, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ken Itoh
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University, Hirosaki, Japan
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Kasai S, Shimizu S, Tatara Y, Mimura J, Itoh K. Regulation of Nrf2 by Mitochondrial Reactive Oxygen Species in Physiology and Pathology. Biomolecules 2020; 10:biom10020320. [PMID: 32079324 PMCID: PMC7072240 DOI: 10.3390/biom10020320] [Citation(s) in RCA: 243] [Impact Index Per Article: 60.8] [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: 01/17/2020] [Revised: 02/13/2020] [Accepted: 02/13/2020] [Indexed: 02/06/2023] Open
Abstract
Reactive oxygen species (ROS) are byproducts of aerobic respiration and signaling molecules that control various cellular functions. Nrf2 governs the gene expression of endogenous antioxidant synthesis and ROS-eliminating enzymes in response to various electrophilic compounds that inactivate the negative regulator Keap1. Accumulating evidence has shown that mitochondrial ROS (mtROS) activate Nrf2, often mediated by certain protein kinases, and induce the expression of antioxidant genes and genes involved in mitochondrial quality/quantity control. Mild physiological stress, such as caloric restriction and exercise, elicits beneficial effects through a process known as “mitohormesis”. Exercise induces NOX4 expression in the heart, which activates Nrf2 and increases endurance capacity. Mice transiently depleted of SOD2 or overexpressing skeletal muscle-specific UCP1 exhibit Nrf2-mediated antioxidant gene expression and PGC1α-mediated mitochondrial biogenesis. ATF4 activation may induce a transcriptional program that enhances NADPH synthesis in the mitochondria and might cooperate with the Nrf2 antioxidant system. In response to severe oxidative stress, Nrf2 induces Klf9 expression, which represses mtROS-eliminating enzymes to enhance cell death. Nrf2 is inactivated in certain pathological conditions, such as diabetes, but Keap1 down-regulation or mtROS elimination rescues Nrf2 expression and improves the pathology. These reports aid us in understanding the roles of Nrf2 in pathophysiological alterations involving mtROS.
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Affiliation(s)
- Shuya Kasai
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan; (S.K.); (S.S.); (J.M.)
| | - Sunao Shimizu
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan; (S.K.); (S.S.); (J.M.)
- Department of Nature & Wellness Research, Innovation Division, Kagome Co., Ltd. Nasushiobara, Tochigi 329-2762, Japan
| | - Yota Tatara
- Department of Glycotechnology, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan;
| | - Junsei Mimura
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan; (S.K.); (S.S.); (J.M.)
| | - Ken Itoh
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki 036-8562, Japan; (S.K.); (S.S.); (J.M.)
- Correspondence: ; Tel.: +81-172-39-5158
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Sehsah R, Wu W, Ichihara S, Hashimoto N, Hasegawa Y, Zong C, Itoh K, Yamamoto M, Elsayed AA, El-Bestar S, Kamel E, Ichihara G. Role of Nrf2 in inflammatory response in lung of mice exposed to zinc oxide nanoparticles. Part Fibre Toxicol 2019; 16:47. [PMID: 31842927 PMCID: PMC6915997 DOI: 10.1186/s12989-019-0328-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [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: 05/26/2019] [Accepted: 10/31/2019] [Indexed: 12/25/2022] Open
Abstract
Background Zinc oxide nanoparticles (ZnO-NPs) are widely used in many industrial sectors and previous studies have reported that exposure of the lungs to ZnO-NPs induces both acute and/or chronic pulmonary inflammation, but the exact mechanism underlying such response remains elusive. This study investigated the role of nuclear factor-erythroid 2-related factor (Nrf2) in pulmonary inflammation induced by exposure to ZnO-NPs using Nrf2 null (Nrf2−/−) mice. Methods Twenty-four male Nrf2−/− mice and thirty male wild type C57BL/6 J mice were divided into three groups of eight and ten each respectively, and exposed once to ZnO-NPs at 0, 10, 30 μg/mouse by pharyngeal aspiration. At 14 days after the exposure to ZnO-NPs, bronchoalveolar lavage fluid (BALF) and lungs were collected to quantify protein level and the number of inflammatory cells. The mRNA levels of Nrf2-dependent antioxidant enzymes and inflammatory cytokines in lung tissue were measured. Results Exposure to ZnO-NPs dose-dependently increased the number of total cells, macrophages, lymphocytes and eosinophils in BALF both in Nrf2−/− mice and wild type mice, but the magnitude of increase was significantly higher in Nrf2−/− mice than wild type mice. The number of neutrophils in BALF increased in Nrf2−/− mice, being accompanied by marginal trend of increase in mRNA expression of MIP-2, neutrophil chemoattractant, but such changes were not observed in wild type mice. Exposure to ZnO-NPs did not dose-dependently increase mRNA level of Nrf2-dependent antioxidant enzymes both in Nrf2−/− mice and wild type mice. Conclusion Pharyngeal aspiration of ZnO-NPs induced infiltration of inflammatory cells in the lung of mice, but minimally induced Nrf2-dependent antioxidant enzymes. The results suggest that Nrf2 play a role in negative regulation on ZnO-NP exposure-induced neutrophil migration, but does not demonstrate that the regulation is through suppression of oxidative stress.
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Affiliation(s)
- Radwa Sehsah
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Public Health and Community Medicine, Mansoura Faculty of Medicine, Mansoura, Egypt
| | - Wenting Wu
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Sahoko Ichihara
- Department of Environmental and Preventive Medicine, School of Medicine, Jichi Medical University, Shimotsuke, Japan
| | - Naozumi Hashimoto
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshinori Hasegawa
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Cai Zong
- Department of Occupational and Environmental Health, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda, Japan
| | - Ken Itoh
- Department of Stress Response Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Masayuki Yamamoto
- Department of Medical Biochemistry, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ahmed Ali Elsayed
- Department of Pathology, Mansoura Faculty of Medicine, Mansoura, Egypt
| | - Soheir El-Bestar
- Department of Public Health and Community Medicine, Mansoura Faculty of Medicine, Mansoura, Egypt
| | - Emily Kamel
- Department of Public Health and Community Medicine, Mansoura Faculty of Medicine, Mansoura, Egypt
| | - Gaku Ichihara
- Department of Occupational and Environmental Health, Nagoya University Graduate School of Medicine, Nagoya, Japan. .,Department of Occupational and Environmental Health, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda, Japan.
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Oka Y, Takata N, Itoh K. Sleep habit and internet use among Japanese preschoolers. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.799] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Tsushima M, Liu J, Hirao W, Yamazaki H, Tomita H, Itoh K. Emerging evidence for crosstalk between Nrf2 and mitochondria in physiological homeostasis and in heart disease. Arch Pharm Res 2019; 43:286-296. [DOI: 10.1007/s12272-019-01188-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 11/01/2019] [Indexed: 12/31/2022]
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Oka Y, Itoh K, Norimi T. Sleep habit and internet use of preschoolers. J Neurol Sci 2019. [DOI: 10.1016/j.jns.2019.10.666] [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: 11/29/2022]
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Suekane S, Noguchi M, Terasaki M, Yutani S, Narita Y, Yamada A, Shichijo S, Igawa T, Itoh K. Biomarkers predictive of overall survival in advanced cancer patients treated with a peptide-based cancer vaccine. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz239.048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Yoshiyama K, Noguchi M, Terasaki M, Sugawara S, Yamada A, Shichijo S, Takamori S, Akagi Y, Yutani S, Itoh K. P2.04-65 Peptide-Based Cancer Vaccine Shortened the Overall Survival of a Large Portion, but Not All, of Advanced Cancer Patients. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1570] [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]
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Pooh RK, Machida M, Nakamura T, Uenishi K, Chiyo H, Itoh K, Yoshimatsu J, Ueda H, Ogo K, Chaemsaithong P, Poon LC. Increased Sylvian fissure angle as early sonographic sign of malformation of cortical development. Ultrasound Obstet Gynecol 2019; 54:199-206. [PMID: 30381845 PMCID: PMC6772089 DOI: 10.1002/uog.20171] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 10/17/2018] [Accepted: 10/19/2018] [Indexed: 05/20/2023]
Abstract
OBJECTIVE To evaluate Sylvian fissure development by assessing Sylvian fissure angles in fetuses with malformation of cortical development (MCD). METHODS This was a retrospective study of 22 fetuses with MCD. Cases with a stored three-dimensional (3D) brain volume acquired at 18 + 0 to 30 + 6 weeks of gestation at an ultrasound-based research clinic between January 2010 and December 2017 were identified through a database. Of the 22 fetuses, seven had an extracranial abnormality, such as cardiac, renal, gastrointestinal and/or digital anomalies, and five had a minor abnormality such as micrognathia, low-set ears and/or single umbilical artery. To confirm the final clinical diagnosis of brain abnormality, postmortem histological findings or prenatal or postnatal magnetic resonance images were used. For measurement of Sylvian fissure angle, an anterior coronal plane of the fetal brain on transvaginal 3D volume multiplanar imaging was visualized as a single image from the three orthogonal views. The right and left Sylvian fissure angles were measured between a horizontal reference line (0°) and a line drawn along the upper side of the respective Sylvian fissure. The Sylvian fissure angle on both sides was plotted on the graphs of the reference ranges for gestational age in weeks. RESULTS In 21 (95.5%; 95% CI, 86.8-100.0%) of 22 fetuses with MCD, the Sylvian fissure angle on one or both sides was larger than the 90th percentile of the normal reference. There was one case with apparent focal MCD in the parietal lobe, but the Sylvian fissure angles were normal. A case with apparent unilateral cortical dysplasia and one with apparent unilateral schizencephaly had conspicuous discrepancies between the left and right Sylvian fissure angles. Abnormal genetic test results were obtained in six cases, including four cases with a mutation in a single gene. CONCLUSIONS This study has shown that the Sylvian fissures, as defined by the Sylvian fissure angle, have delayed development in most MCD cases prior to the diagnosis of the condition. The Sylvian fissure angle may potentially be a strong indicator for the subsequent development of cortical malformation, before the time point at which the gyri and sulci become obvious on the fetal brain surface. Further research is required to validate these findings. © 2018 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of the International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- R. K. Pooh
- CRIFM Clinical Research Institute of Fetal Medicine Pooh Maternity ClinicOsakaJapan
| | - M. Machida
- CRIFM Clinical Research Institute of Fetal Medicine Pooh Maternity ClinicOsakaJapan
| | - T. Nakamura
- CRIFM Clinical Research Institute of Fetal Medicine Pooh Maternity ClinicOsakaJapan
| | - K. Uenishi
- CRIFM Clinical Research Institute of Fetal Medicine Pooh Maternity ClinicOsakaJapan
| | - H. Chiyo
- CRIFM Clinical Research Institute of Fetal Medicine Pooh Maternity ClinicOsakaJapan
| | - K. Itoh
- Department of Pathology and Applied Neurobiology, Graduate School of Medical ScienceKyoto Prefectural University of MedicineKyotoJapan
| | - J. Yoshimatsu
- Department of Obstetrics and GynecologyNational Cerebral and Cardiovascular CenterOsakaJapan
| | - H. Ueda
- Department of PathologyNational Cerebral and Cardiovascular CenterOsakaJapan
| | - K. Ogo
- Department of PathologyNational Cerebral and Cardiovascular CenterOsakaJapan
| | - P. Chaemsaithong
- Department of Obstetrics and GynaecologyPrince of Wales Hospital, The Chinese University of Hong KongShatinHong Kong SAR
| | - L. C. Poon
- Department of Obstetrics and GynaecologyPrince of Wales Hospital, The Chinese University of Hong KongShatinHong Kong SAR
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Mimura J, Inose-Maruyama A, Taniuchi S, Kosaka K, Yoshida H, Yamazaki H, Kasai S, Harada N, Kaufman RJ, Oyadomari S, Itoh K. Concomitant Nrf2- and ATF4-activation by Carnosic Acid Cooperatively Induces Expression of Cytoprotective Genes. Int J Mol Sci 2019; 20:ijms20071706. [PMID: 30959808 PMCID: PMC6480217 DOI: 10.3390/ijms20071706] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 03/29/2019] [Accepted: 03/30/2019] [Indexed: 12/12/2022] Open
Abstract
Carnosic acid (CA) is a phytochemical found in some dietary herbs, such as Rosmarinus officinalis L., and possesses antioxidative and anti-microbial properties. We previously demonstrated that CA functions as an activator of nuclear factor, erythroid 2 (NF-E2)-related factor 2 (Nrf2), an oxidative stress-responsive transcription factor in human and rodent cells. CA enhances the expression of nerve growth factor (NGF) and antioxidant genes, such as HO-1 in an Nrf2-dependent manner in U373MG human astrocytoma cells. However, CA also induces NGF gene expression in an Nrf2-independent manner, since 50 μM of CA administration showed striking NGF gene induction compared with the classical Nrf2 inducer tert-butylhydroquinone (tBHQ) in U373MG cells. By comparative transcriptome analysis, we found that CA activates activating transcription factor 4 (ATF4) in addition to Nrf2 at high doses. CA activated ATF4 in phospho-eIF2α- and heme-regulated inhibitor kinase (HRI)-dependent manners, indicating that CA activates ATF4 through the integrated stress response (ISR) pathway. Furthermore, CA activated Nrf2 and ATF4 cooperatively enhanced the expression of NGF and many antioxidant genes while acting independently to certain client genes. Taken together, these results represent a novel mechanism of CA-mediated gene regulation evoked by Nrf2 and ATF4 cooperation.
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Affiliation(s)
- Junsei Mimura
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan.
| | - Atsushi Inose-Maruyama
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan.
- Department of Microbiology, Tohoku Medical and Pharmaceutical University, Sendai 981-8558, Japan.
| | - Shusuke Taniuchi
- Division of Molecular Biology, Institute of Advanced Medical Sciences, The University of Tokushima, Tokushima 770-8503, Japan.
| | - Kunio Kosaka
- Research and Development Center, Nagase & Co. Ltd., Kobe 651-2241, Japan.
| | - Hidemi Yoshida
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan.
| | - Hiromi Yamazaki
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan.
| | - Shuya Kasai
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan.
| | - Nobuhiko Harada
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan.
- Institute for Animal Experimentation, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan.
| | - Randal J Kaufman
- Degenerative Diseases Research Program, Sanford Burnham Prebys Medical Discovery Research Institute, La Jolla, CA 92037, USA.
| | - Seiichi Oyadomari
- Division of Molecular Biology, Institute of Advanced Medical Sciences, The University of Tokushima, Tokushima 770-8503, Japan.
| | - Ken Itoh
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, Japan.
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Toh U, Okabe M, Takao Y, Tanaka Y, Shigaki T, Takenaka M, Iwakuma N, Sudo T, Yamada A, Shichijo S, Itoh K, Akagi Y. Abstract P4-06-06: Comparison of the immunological and clinical effect of personalized peptide vaccination for patients with breast cancer. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p4-06-06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Selected therapeutic personalized peptide vaccines (PPV) were effective for boosting anticancer immune response that was associated with the clinical outcome as a prognostic factor for metastatic recurrent breast cancer (mrBC) 1-2. In this study, we investigated the immunological and clinical effect of PPV as the prophylactic cancer vaccine for non-recurrent but high-risk BC (nrhrBC) patients (pts), and we compared it's features to those of the mrBC pts who had active cancers or became resistant to the standard therapies(TR-mrBC). Methods: Material and Patient eligibility criteria: The peptides were selected from the 31 PPVs according to the results of HLA typing and peptide-specific IgG titers. Pts with a histological diagnosis of BC and their HLA-A molecules should be each of -A2, A3, A11, A24, A26, A31 or A33. The clinical protocols were approved by the institutional review board. (UMIN000003081and 00000184400000). Treatment schedule: A maximum of 4 peptides was administrated as weekly for initial four vaccinations and as biweekly for further inoculations. The concomitant standard endocrine therapy and the chemo-endocrine therapy were available for nrhrBC pts after finishing the standard adjuvant chemotherapy, and for mrBC pts concurrently. Immune and clinical response assessment: Specific T-cell responses, IgG titers and cytokines were evaluated using by interferon (IFN)-γ ELISPOT, Luminex assay and ELISA system in every 6-8 vaccinations. Toxicity, clinical response and correlation with the immune responses were investigated. Results: 16 pts with nrhrBC, 41 pts with mrBC and 79 pts with TR-mrBC received median 18, 16 and 14 vaccines, respectively. After PPV therapies, peptide-specific IgG and CTLs increased significantly in a total of 47 (77%) and 37(60%) in nrhrBC pts, 102 (63%) and 98 (61%) in mrBC pts, and 150(53%) and 100 (42%) in TR-mrBC pts. Pts experienced Grade 1-3 skin reaction at injection site, no other grade 3 or 4 SAEs were associated with PPV but with the disease progression or combination therapy. The median time to progression (TTP) and overall survival (OS) were not reached in nrhrBC pts, 7.8 and 29 months in mrBC pts, and were 7.5 and 15.9 months in TR-mrBC pts, respectively. The peptide specific CTL response was correlated significantly with OS in nrhrBC pts and the IgG levels were associated with the better OS in either non TR-mrBC pts or TR-mrBC pts. High levels of IL-6, GM-CSF, IFN-g, IL-2 receptor, BAFF were associated with worse prognosis for pts with TR-mrBC. And high levels of GM-CSF and BAFF were associated with worse prognosis for pts with nrhrBC and mrBC, respectively. In contrast, High levels of IL-2 were associated with the better prognosis for pts with mrBC. Conclusion: This study indicated that immunological features of these three groups were different from each other with most potent PPV-induced immune boosting for nrhrBC pts. Pts with mrBC who had lower immune-suppressive cytokine levels had the better prognosis. These results suggested the PPV therapy could be effective for postoperative prophylactic vaccination in patients with nrhrBC. References: 1. Takahashi R, Toh U, et al. Breast Cancer Res. 2014; 2. Toh U, Okabe M, et al. THE BREAST 2015.
Citation Format: Toh U, Okabe M, Takao Y, Tanaka Y, Shigaki T, Takenaka M, Iwakuma N, Sudo T, Yamada A, Shichijo S, Itoh K, Akagi Y. Comparison of the immunological and clinical effect of personalized peptide vaccination for patients with breast cancer [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P4-06-06.
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Affiliation(s)
- U Toh
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Cancer Vaccine Center, Kurume University, Kurume, Fukuoka, Japan
| | - M Okabe
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Cancer Vaccine Center, Kurume University, Kurume, Fukuoka, Japan
| | - Y Takao
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Cancer Vaccine Center, Kurume University, Kurume, Fukuoka, Japan
| | - Y Tanaka
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Cancer Vaccine Center, Kurume University, Kurume, Fukuoka, Japan
| | - T Shigaki
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Cancer Vaccine Center, Kurume University, Kurume, Fukuoka, Japan
| | - M Takenaka
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Cancer Vaccine Center, Kurume University, Kurume, Fukuoka, Japan
| | - N Iwakuma
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Cancer Vaccine Center, Kurume University, Kurume, Fukuoka, Japan
| | - T Sudo
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Cancer Vaccine Center, Kurume University, Kurume, Fukuoka, Japan
| | - A Yamada
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Cancer Vaccine Center, Kurume University, Kurume, Fukuoka, Japan
| | - S Shichijo
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Cancer Vaccine Center, Kurume University, Kurume, Fukuoka, Japan
| | - K Itoh
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Cancer Vaccine Center, Kurume University, Kurume, Fukuoka, Japan
| | - Y Akagi
- Kurume University School of Medicine, Kurume, Fukuoka, Japan; Research Center for Innovative Cancer Therapy, Kurume University, Kurume, Fukuoka, Japan; Cancer Vaccine Center, Kurume University, Kurume, Fukuoka, Japan
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Kasai S, Mimura J, Ozaki T, Itoh K. Emerging Regulatory Role of Nrf2 in Iron, Heme, and Hemoglobin Metabolism in Physiology and Disease. Front Vet Sci 2018; 5:242. [PMID: 30364139 PMCID: PMC6191506 DOI: 10.3389/fvets.2018.00242] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [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: 06/28/2018] [Accepted: 09/14/2018] [Indexed: 12/21/2022] Open
Abstract
Iron has played an important role in energy production since the beginning of life, as iron-catalyzed redox reactions are required for energy production. Oxygen, a highly efficient electron acceptor with high reduction potential, facilitates highly efficient energy production in eukaryotic cells. However, the increasing atmospheric oxygen concentration produces new threats to the organism, as oxygen reacts with iron and produces reactive oxygen species unless its levels are strictly regulated. As the size of multicellular organisms increases, these organisms must transport oxygen to the peripheral tissues and begin to employ red blood cells containing hemoglobin. This system is potentially a double-edged sword, as hemoglobin autoxidation occurs at a certain speed and releases free iron into the cytoplasm. Nrf2 belongs to the CNC transcription factor family, in which NF-E2p45 is the founding member. NF-E2p45 was first identified as a transcription factor that binds to the erythroid gene regulatory element NF-E2 located in the promoter region of the heme biosynthetic porphobilinogen deaminase gene. Human Nrf2 was also identified as a transcription factor that binds to the regulatory region of the β-globin gene. Despite these original findings, NF-E2p45 and Nrf2 knockout mice exhibit few erythroid phenotypes. Nrf2 regulates the expression of a wide range of antioxidant and detoxification enzymes. In this review article, we describe and discuss the roles of Nrf2 in various iron-mediated bioreactions and its possible coevolution with iron and oxygen.
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Affiliation(s)
- Shuya Kasai
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Junsei Mimura
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Taku Ozaki
- Department of Biological Science, Iwate University, Morioka, Japan
| | - Ken Itoh
- Department of Stress Response Science, Center for Advanced Medical Research, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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Ishihara S, Okada S, Ogi H, Kodama Y, Itoh K, Marx A, Inoue M. P1.14-11 The Expression Pattern of Programmed Death-Ligand 1 According to the Pathological Type of Malignant Thymic Epithelial Tumors. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.913] [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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