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Takahashi D, Ito T, Ito Y, Natsume K, Noritake K, Ochi N, Sugiura H. Relationship between exercise habits and physical function in children aged 9-12 years. Nagoya J Med Sci 2024; 86:24-35. [PMID: 38505723 PMCID: PMC10945223 DOI: 10.18999/nagjms.86.1.24] [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] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 02/28/2023] [Indexed: 03/21/2024]
Abstract
Exercise improves physical health and positively impacts physical functions in children. Additionally, the habitual exercise established during childhood often continues into adulthood. Therefore, childhood is an important period for establishing healthy habits. Investigating the relationship between the presence or absence of daily exercise and physical functions may provide important information to confirm poor physical function in children with poor exercise habits. Therefore, this study examined the relationship between exercise habits as defined by the Japanese Ministry of Health, Labor, and Welfare and physical function in children aged 9-12 years. Approximately 239 children were included in this study. Participants answered a questionnaire about their exercise habits. We evaluated the skeletal muscle mass index, grip strength, standing broad jump, one-leg standing time, and gait deviation index. Logistic regression analyses were performed to assess exercise habit association with skeletal muscle mass index, physical function, and gait deviation index after adjusting for sex. Of the 239 children, 75.5% (n = 178) had exercise habits. A significant association was noted between exercise habits and skeletal muscle mass index and standing broad jump (skeletal muscle mass index: OR, 1.84; 95% CI, 1.01-3.36 and p<0.05; standing long jump: OR, 1.02; 95% CI, 1.00-1.04 and p<0.05). In conclusion, exercise regardless of exercise level for at least 30 min per day, 2 days per week, for at least 1 year is important for skeletal muscle mass and instantaneous lower limb muscular strength development in school-aged children.
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Affiliation(s)
- Daiki Takahashi
- Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tadashi Ito
- Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Three-dimensional Motion Analysis Room, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki, Japan
| | - Yuji Ito
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kentaro Natsume
- Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Koji Noritake
- Department of Orthopedic Surgery, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki, Japan
| | - Nobuhiko Ochi
- Department of Pediatrics, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki, Japan
| | - Hideshi Sugiura
- Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Ito T, Sugiura H, Ito Y, Narahara S, Natsume K, Takahashi D, Noritake K, Yamazaki K, Sakai Y, Ochi N. Relationship between low-back pain and flexibility in children: A cross-sectional study. PLoS One 2023; 18:e0293408. [PMID: 37948451 PMCID: PMC10637693 DOI: 10.1371/journal.pone.0293408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 10/11/2023] [Indexed: 11/12/2023] Open
Abstract
Low-back pain is common among school-aged children. Decreased trunk flexibility in childhood influences low-back pain in adulthood. Previous studies examining the association between low-back pain and trunk flexibility in children are insufficient. Examining this association among elementary school children may help to better understand trunk flexibility in children with low-back pain and to modify the management of inflexibility. Therefore, this study aimed to identify the prevalence of low-back pain and its relationship with physical function among elementary school students. School-aged children aged 6-12 years were recruited in Japan between May 2018 and March 2023. Fingertip-to-floor distance, back muscle strength, pelvic tilt angle during gait, and the visual analog scale for low-back pain were measured. In addition, factors independently related to low-back pain were determined through logistic regression analysis. Low-back pain was reported in 9.6% of the 394 participants (boys, 191; girls, 203). All children with low-back pain presented with back pain when they moved; however, the pain was non-specific. Logistic regression analysis showed that the fingertip-to-floor distance was an independent risk factor for low-back pain (odds ratio, 0.921; p = 0.007). The odds ratios calculated in the logistic regression analysis confirmed that low-back pain frequency increased as the fingertip-to-floor distance decreased. The risk of low-back pain was associated with inflexibility, regardless of sex and muscle strength. These findings suggest that children with low-back pain must increase their trunk and lower extremity flexibility.
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Affiliation(s)
- Tadashi Ito
- Three-Dimensional Motion Analysis Laboratory, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki, Japan
- Department of Integrated Health Sciences, Graduate School of Medicine, Nagoya University, Nagoya, Japan
| | - Hideshi Sugiura
- Department of Integrated Health Sciences, Graduate School of Medicine, Nagoya University, Nagoya, Japan
| | - Yuji Ito
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Department of Pediatrics, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki, Japan
| | - Sho Narahara
- Department of Pediatrics, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki, Japan
| | - Kentaro Natsume
- Department of Integrated Health Sciences, Graduate School of Medicine, Nagoya University, Nagoya, Japan
| | - Daiki Takahashi
- Department of Integrated Health Sciences, Graduate School of Medicine, Nagoya University, Nagoya, Japan
| | - Koji Noritake
- Department of Orthopedic Surgery, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki, Japan
| | | | - Yoshihito Sakai
- Department of Orthopedic Surgery, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Nobuhiko Ochi
- Department of Pediatrics, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki, Japan
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Takahashi D, Ora T, Sasaki S, Ishii N, Tanaka T, Matsuda T, Ikeda M, Moriyama J, Cho N, Nara H, Maezaki H, Kamaura M, Shimokawa K, Arimoto H. Second-Generation AUTACs for Targeted Autophagic Degradation. J Med Chem 2023; 66:12342-12372. [PMID: 37589438 DOI: 10.1021/acs.jmedchem.3c00861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Abstract
Targeted protein degradation via the ubiquitin-proteasome system has emerged as one of the most promising drug discovery modalities. Autophagy, another intracellular degradation system, can target a wide range of nonproteinous substrates as well as proteins, but its application to targeted degradation is still in its infancy. Our previous work revealed a relationship between guanine modification of cysteine residues on intracellular proteins and selective autophagy, resulting in the first autophagy-based degraders, autophagy-targeted chimeras (AUTACs). Based on the research background, all the reported AUTACs compounds contain cysteine as a substructure. Here, we examine the importance of this substructure by conducting SAR studies and report significant improvements in the degrader's activity by replacing cysteine with other moieties. Several derivatives showed sub-μM range degrading activity, demonstrating the increased practical value of AUTACs.
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Affiliation(s)
- Daiki Takahashi
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Taiichi Ora
- Takeda Pharmaceutical Company Limited, Fujisawa, Kanagawa 251-8555, Japan
| | - Shigekazu Sasaki
- Takeda Pharmaceutical Company Limited, Fujisawa, Kanagawa 251-8555, Japan
| | - Naoki Ishii
- Takeda Pharmaceutical Company Limited, Fujisawa, Kanagawa 251-8555, Japan
| | - Toshio Tanaka
- Takeda Pharmaceutical Company Limited, Fujisawa, Kanagawa 251-8555, Japan
| | - Takumi Matsuda
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Mutsuki Ikeda
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Jun Moriyama
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Nobuo Cho
- Takeda Pharmaceutical Company Limited, Fujisawa, Kanagawa 251-8555, Japan
| | - Hiroshi Nara
- Takeda Pharmaceutical Company Limited, Fujisawa, Kanagawa 251-8555, Japan
| | - Hironobu Maezaki
- Takeda Pharmaceutical Company Limited, Fujisawa, Kanagawa 251-8555, Japan
| | - Masahiro Kamaura
- Takeda Pharmaceutical Company Limited, Fujisawa, Kanagawa 251-8555, Japan
| | | | - Hirokazu Arimoto
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
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Ami K, Terashima K, Ishida J, Suga M, Okawa T, Takahashi D, Park S, Matsuo Y, Nanno Y, Tokumaru S, Okimoto T, Toyama H, Fukumoto T. Proton radiotherapy as a treatment strategy to increase survival in locally advanced pancreatic cancer in the body and tail: a retrospective study. Radiat Oncol 2023; 18:131. [PMID: 37553705 PMCID: PMC10408146 DOI: 10.1186/s13014-023-02301-9] [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: 05/19/2023] [Accepted: 06/19/2023] [Indexed: 08/10/2023] Open
Abstract
BACKGROUND Long-term outcomes and prognostic factors of proton radiotherapy for locally advanced pancreatic cancer (LAPC) in the body and tail are still unknown. The aim of this study was to determine the prognostic factors after proton radiotherapy in a large group of patients with LAPC in the body and tail. METHODS The medical records of 200 patients with LAPC in the body and tail who underwent proton radiotherapy between February 2009 and January 2021 at the Hyogo Ion Beam Medical Center were retrospectively reviewed to identify prognostic factors that contribute to long-term survival. RESULTS The overall survival rate at 1- and 2-year after PT was 69.6% and 35.4% with a median overall survival of 18.4 months. The 1- and 2-year local progression-free, and progression-free survival rates were 84.3% and 68.0%, and 44.3% and 19.4%, respectively. In multivariate analysis, superior mesenteric artery (SMA) invasion (SMA only invasion vs. celiac artery only invasion; P = 0.049: SMA and celiac artery invasion vs. celiac artery only invasion; P = 0.017), carbohydrate antigen 19-9 (CA 19-9) level ≥ 231.9 U/mL (P = 0.001), anterior peripancreatic invasion (P = 0.006), and incomplete scheduled concurrent chemotherapy (P = 0.009) were statistically significant prognostic factors for overall survival. There was no significant difference in local progression-free survival; however, distant metastasis-free survival was statistically worse in patients with prognostic factors than in those without. CONCLUSIONS Proton radiotherapy for LAPC in the body and tail may be a valuable multidisciplinary treatment option. Patients with SMA invasion, higher pre-proton radiotherapy serum CA 19-9 level, anterior peripancreatic invasion, or incomplete scheduled concurrent chemotherapy had worse overall survival because of worse distant metastasis-free survival, suggesting that distant metastases have a significant impact on overall survival in such patients. TRIAL REGISTRATION Retrospectively registered.
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Affiliation(s)
- Katsuya Ami
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, Hyogo, 679-5165, Japan
| | - Kazuki Terashima
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, Hyogo, 679-5165, Japan
| | - Jun Ishida
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Masaki Suga
- Department of Radiation Physics, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, Hyogo, 679-5165, Japan
| | - Taisuke Okawa
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Daiki Takahashi
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, Hyogo, 679-5165, Japan
| | - SungChul Park
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, Hyogo, 679-5165, Japan
| | - Yoshiro Matsuo
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, Hyogo, 679-5165, Japan
| | - Yoshihide Nanno
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Sunao Tokumaru
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, Hyogo, 679-5165, Japan
| | - Tomoaki Okimoto
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, Hyogo, 679-5165, Japan
| | - Hirochika Toyama
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan.
| | - Takumi Fukumoto
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
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Yugeta A, Arai H, Takahashi D, Haruta N, Sugimoto A, Arimoto H. C. elegans ATG-5 mutants associated with ataxia. MicroPubl Biol 2023; 2023:10.17912/micropub.biology.000792. [PMID: 37334197 PMCID: PMC10276264 DOI: 10.17912/micropub.biology.000792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 05/23/2023] [Accepted: 05/31/2023] [Indexed: 06/20/2023]
Abstract
Intercellular cleaning via autophagy is crucial for maintaining cellular homeostasis, and impaired autophagy has been associated with the accumulation of protein aggregates that can contribute to neurological diseases. Specifically, the loss-of-function mutation in the human autophagy-related gene 5 (ATG5) at E122D has been linked to the pathogenesis of spinocerebellar ataxia in humans. In this study, we generated two homozygous C. elegans strains with mutations (E121D and E121A) at positions corresponding to the human ATG5 ataxia mutation to investigate the effects of ATG5 mutations on autophagy and motility. Our results showed that both mutants exhibited a reduction in autophagy activity and impaired motility, suggesting that the conserved mechanism of autophagy-mediated regulation of motility extends from C. elegans to humans.
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Affiliation(s)
- Azusa Yugeta
- Life Sciences, Tohoku University, Sendai, Miyagi, Japan
| | - Hiroki Arai
- Life Sciences, Tohoku University, Sendai, Miyagi, Japan
| | | | - Nami Haruta
- Life Sciences, Tohoku University, Sendai, Miyagi, Japan
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Takahashi D, Arimoto H. p62 Phase-Separation as the Foundation of Autophagy-Based Degraders. Biochemistry 2023; 62:559-560. [PMID: 35767697 DOI: 10.1021/acs.biochem.2c00252] [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: 02/08/2023]
Affiliation(s)
- Daiki Takahashi
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Hirokazu Arimoto
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
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7
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Ito T, Sugiura H, Ito Y, Nakai A, Narahara S, Noritake K, Takahashi D, Natsume J, Ochi N. Decreased Walking Efficiency in Elementary School Children with Developmental Coordination Disorder Trait. Clin Rehabil 2023:2692155221150385. [PMID: 36604801 DOI: 10.1177/02692155221150385] [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: 01/07/2023]
Abstract
OBJECTIVE To compare walking efficiency, and associated physical function, between children, with and without developmental coordination disorder trait. DESIGN Cross-sectional study. SETTING The study was conducted in a Medical and Rehabilitation Center for Developmental Disabilities in Okazaki, Japan. SUBJECTS The study included 286 children, 6-12 years of age, with and without developmental coordination disorder trait. Developmental coordination disorder trait was defined by a score below the -1 standard deviation on the Japanese version of the Developmental Coordination Disorder Questionnaire. Based on this criterion, 45 children (28 boys) were classified into the developmental coordination disorder trait group and the other 241 (115 boys) in the control group. MEASURES The following physical function outcomes were measured: single leg stance test; step length variability; and walking efficiency, measured using the 2-min walk test. Logistic regression analysis was used to determine the association between developmental coordination disorder trait and lower walking efficiency and physical function. RESULTS Compared to the control group, the developmental coordination disorder group showed lower walking efficiency (P = 0.026), higher step length variability (P = 0.047), and shorter single leg stance test (P = 0.001). Developmental coordination disorder was independently associated with walking efficiency (odds ratio, 1.03; 95% confidence interval [CI], 1.001-1.061; P = 0.041) and single leg stance test (odds ratio, 0.99; 95% CI, 0.978-0.996; P = 0.006), but not to step length variability, age, and sex. CONCLUSIONS Lower walking efficiency increases energy expenditure in children with developmental coordination disorder trait. Interventions to improve walking efficiency could improve the physical function and participation of these children.
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Affiliation(s)
- Tadashi Ito
- Three-Dimensional Motion Analysis Laboratory, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki, Japan.,Department of Integrated Health Sciences, Graduate School of Medicine, 12965Nagoya University, Nagoya, Japan
| | - Hideshi Sugiura
- Department of Integrated Health Sciences, Graduate School of Medicine, 12965Nagoya University, Nagoya, Japan
| | - Yuji Ito
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Pediatrics, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki, Japan
| | - Akio Nakai
- Graduate School of Clinical Education & The Center for the Study of Child Development, Institute for Education, 12955Mukogawa Women's University, Nishinomiya, Japan
| | - Sho Narahara
- Department of Pediatrics, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki, Japan
| | - Koji Noritake
- Department of Orthopedic Surgery, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki, Japan
| | - Daiki Takahashi
- Department of Integrated Health Sciences, Graduate School of Medicine, 12965Nagoya University, Nagoya, Japan
| | - Jun Natsume
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Developmental Disability Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Nobuhiko Ochi
- Department of Pediatrics, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki, Japan
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Nozaki Y, Fujimoto S, Takahashi D, Kawaguchi YO, Kudo A, Aoshima C, Kamo Y, Takamura K, Hiki M, Dohi T, Tomizawa N, Minamino T. Additional clinical impact of plaque analysis for on-site CT-derived FFR in coronary CT angiography on midterm prognosis. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.208] [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 per-patient on-site computed tomography-fractional flow reserve (CT-FFR), which can be acquired on-site workstation using fluid structure interaction during the multiple optimal diastolic phases measured 1 to 2 cm distal to a target lesion may be feasible for risk stratification based on future cardiac events for patients who did not undergo planned revascularization. However, per-vessel CT-FFR and the additional impact of plaque analysis on CT-FFR have not been evaluated.
Purpose
The aim of this study is to assess the clinical and additional impact of novel plaque analysis using labeling method for per-vessel CT-FFR on midterm prognosis.
Methods
A total of 254 consecutive patients with 354 vessels showing 50–90% stenosis but not revascularized within 90 days from coronary CT angiography (CCTA) on 320-row CT were retrospectively analyzed and followed during a median follow up 3.6 years. Plaque characteristics by labeling method (necrotic core/total plaque volume (% necrotic core), non-calcified plaque (NCP)/vessel volume (%NCP), and total plaque/vessel volume (%total plaque) for both total vessel volume (mm3) and at minimum lumen area (MLA, mm2)), positive remodeling (PR) and CT-FFR were analyzed on per-target vessels. The endpoint was vessel oriented-composite outcome (VOCO), including cardiac death, non-fatal MI, and unplanned revascularization.
Results
The incidence of VOCO occurred in 6.8% (24/354). In the cox proportional hazard model, a multivariate analysis identified CT-FFR≤0.80 was the most associated factor with VOCO (all values <0.01 for other plaque morphologies), but %necrotic core, %NCP, %total plaque at MLA and PR were significantly independent of CT-FFR≤0.80. (%necrotic core HR; 3.43 (p<0.01 [95% confidence interval (CI) 1.42–8.29]), %NCP HR; 4.05 (p=0.03 [95% CI 1.19–13.71]), %total plaque at MLA HR; 2.82 (p=0.02 [95% CI 1.18–6.76]), and PR HR; 2.90 (p<0.01 [95% CI 1.30–6.51]), respectively.)
Conclusion
From a view point of clinical outcomes for vessels with moderate to severe stenosis but not revascularized at initial CCTA, CT-FFR demonstrated the significant impact on per-vessel analysis. Moreover, %necrotic core, %NCP and %total plaque at MLA analyzed by labeling method provided better prognostic value in addition to CT-FFR.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- Y Nozaki
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - S Fujimoto
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - D Takahashi
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - Y O Kawaguchi
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - A Kudo
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - C Aoshima
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - Y Kamo
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - K Takamura
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - M Hiki
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - T Dohi
- Juntendo University, Graduate School of Medicine, Hongo, Bunkyo-ku , Tokyo , Japan
| | - N Tomizawa
- Juntendo University Graduate School of Medicine, Department of Radiology , Tokyo , Japan
| | - T Minamino
- Juntendo University Graduate School of Medicine, Department of Radiology , Tokyo , Japan
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Takahashi D, Fujimoto S, Nozaki YO, Kudo A, Kawaguchi YO, Takamura K, Hiki M, Sato H, Tomizawa N, Minamino T. Clinical impact of novel pericoronary adipose tissue measurement on ECG-gated non-contrast chest CT scan. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.191] [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: 11/12/2022] Open
Abstract
Abstract
Background
Pericoronary adipose tissue (PCAT) quantified from coronary computed tomography angiography (CCTA) is a new predictor of CT-derived high-risk plaque (HRP) and adverse cardiac events. There has been no report investigating the method to assess PCAT from non-contrast CT so far. In this present study, we developed a brand-new method to quantify the value of PCAT from electrocardiogram (ECG)-gated non-contrast CT (NC-PCAT).
Purpose
To develop a brand-new method to quantify NC-PCAT accurately, and evaluate its prognostic value.
Methods
We retrospectively studied two independent cohorts of patients undergoing CCTA and ECG-gated non-contrast CT for clinical indication of coronary artery disease (CAD). For former cohort of consecutive 300 patients, we validated the agreement between the NC-PCAT and PCAT, and evaluated the association between NC-PCAT and the prevalence of HRP. For latter cohort of consecutive 333 patients, we dichotomized them into two groups with median NC-PCAT, and assessed the prognostic value of NC-PCAT. To quantify NC-PCAT, we placed 15x15mm region of interest at epicardial fat tissue dorsally adjacent to right coronary ostium in axial slice of ECG-gated non-contrast CT, and defined NC-PCAT as the mean CT value of each 1x1mm pixel there. PCAT was quantified from CCTA using conventional method as described in former researches. Primary endpoint was defined as major adverse cardiac events (MACE), composite of all-cause death and non-fatal myocardial infarction. HRP was defined as coronary artery plaque which has two or more following features; positive remodeling, low attenuation, spotty calcification, and napkin-ring sign.
Results
NC-PCAT was well-correlated with PCAT (r=0.68, p<0.0001). In former cohort, we found HRP in 34 (11.3%) patients. In multivariable logistic regression analysis, higher NC-PCAT (OR 1.06, 95% CI 1.03–1.10, p=0.0001), coronary artery calcium score (CACS) (OR 1.01 per 10 CACS increase, 95% CI 1.00–1.02, p=0.013), and current smoking (OR 2.58, 95% CI 1.03–6.49, p=0.044) were independent predictors of the prevalence of HRP. Among patients with CACS more than zero (n=193), NC-PCAT (OR 1.06, 95% CI 1.03–1.10, p=0.0002), current smoking (OR 3.02, 95% CI 1.17–7.82, p=0.027), and male (OR 2.81, 95% CI 1.06–7.48, p=0.028) were independent predictors of the prevalence of HRP, whereas CACS was not (p=0.15). In latter cohort, the median duration of follow-up was 2.9 years (IQR 1.9–3.9), and 16 (4.8%) cases of MACE were identified. The cumulative incidence of MACE was significantly higher in high NC-PCAT group. Multivariable cox hazard regression analysis revealed that higher NC-PCAT was an independent predictor of primary endpoint, even after adjustment for sex and age (HR 4.28, 95% CI 1.20–12.52, p=0.012).
Conclusions
There was a positive correlation between NC-PCAT and PCAT. Higher NC-PCAT is significantly associated with not only the prevalence of HRP, but also worse clinical outcome.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- D Takahashi
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine , Tokyo , Japan
| | - S Fujimoto
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine , Tokyo , Japan
| | - Y O Nozaki
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine , Tokyo , Japan
| | - A Kudo
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine , Tokyo , Japan
| | - Y O Kawaguchi
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine , Tokyo , Japan
| | - K Takamura
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine , Tokyo , Japan
| | - M Hiki
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine , Tokyo , Japan
| | - H Sato
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine , Tokyo , Japan
| | - N Tomizawa
- Juntendo University Graduate School of Medicine, Department of Radiology , Tokyo , Japan
| | - T Minamino
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine , Tokyo , Japan
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10
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Takahashi D, Sakaguchi S, Teramine T, Setoguchi H. Comparative reproductive ecology of two sister Asarum species (Aristolochiaceae) in relation to the evolution of elongated floral appendage. Plant Biol (Stuttg) 2022; 24:987-997. [PMID: 35869650 DOI: 10.1111/plb.13456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 07/17/2022] [Indexed: 06/15/2023]
Abstract
Genus Asarum (Aristolochiaceae) shows diverse floral morphology and is hypothesized to have diversified as a result of pollinator-mediated selection. Yet most aspects of their reproductive ecology, including pollinators, remain unclear. This study focuses on A. costatum and A. minamitanianum in Japan, a sister species pair having remarkable differences in calyx lobe length (10-20 mm and 70-180 mm, respectively). The objectives of this study are to elucidate multiple aspects of reproductive ecology of these two species and obtain evolutionary insights into floral organ elongation. We adopted combined approaches, including field observations, molecular analyses and cultivation experiments, such as pollinator observation for 3 years, fine-scale spatial genetic analysis of 769 individuals, paternity analysis based on 566 seeds over 4 years, and control pollination experiments. Both Asarum species had strong spatial genetic structures, indicating limited seed dispersal. Pollinator observation revealed that flies and ground-dwelling insects visited flowers of both species, but that the pollinator fauna differed between the species. The visitation rate of flies was extremely low but was more than twice as high in the species with an elongated floral appendage. Paternity analysis revealed A. minamitanianum was predominantly outcrossing, while A. costatum showed a wide range of selfing rates among fruits. These two Asarum species are likely adapted to fly pollination in the shady forest understorey, where available pollinator fauna is limited. In addition, although its function remains unclear, the elongated calyx lobe of A. minamitanianum could have evolved for effective pollen dispersal by attracting fly visitors.
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Affiliation(s)
- D Takahashi
- Kawatabi Field Science Centre, Graduate School of Agricultural Science, Tohoku University, Osaki, Japan
| | - S Sakaguchi
- Graduate School of Human and Environmental Studies, Kyoto University, Kyoto, Japan
| | | | - H Setoguchi
- Graduate School of Human and Environmental Studies, Kyoto University, Kyoto, Japan
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11
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Ito T, Sugiura H, Ito Y, Narahara S, Noritake K, Takahashi D, Natsume K, Ochi N. Physical Functions among Children before and during the COVID-19 Pandemic: A Prospective Longitudinal Observational Study (Stage 1). Int J Environ Res Public Health 2022; 19:11513. [PMID: 36141790 PMCID: PMC9517518 DOI: 10.3390/ijerph191811513] [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] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/07/2022] [Accepted: 09/08/2022] [Indexed: 06/16/2023]
Abstract
One major impact of the COVID-19 pandemic on children's lifestyles is the lack of exercise owing to activity restrictions. However, information regarding the way in which physical functions among children decline under these circumstances remains scarce. In this study, we compared the physical functions and life habits among children before and during the COVID-19 pandemic in Japan. The participants involved 40 children aged between 9-15 years (23 girls and 17 boys) who were examined medically both before and during the pandemic. The compared variables included muscle strength, static and dynamic balance functions, gait speed, body fat percentage, screen and sleep times, quality of life, and physical activity time. During the pandemic, compared to before the pandemic, children had lower levels of dynamic balance functions (p = 0.039), increased body fat percentages (p < 0.0001), longer screen time per day (p = 0.002), and shorter sleep time per day (p < 0.0001). Between the two periods, there were no significant differences in muscle strength, static balance functions, gait speed, quality of life, and physical activity time. The activity restrictions imposed as a result of the COVID-19 pandemic negatively affect dynamic balance functions, body-fat levels, and life habits among children.
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Affiliation(s)
- Tadashi Ito
- Three-Dimensional Motion Analysis Laboratory, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki 444-0002, Japan
- Department of Integrated Health Sciences, Graduate School of Medicine, Nagoya University, Nagoya 461-8673, Japan
| | - Hideshi Sugiura
- Department of Integrated Health Sciences, Graduate School of Medicine, Nagoya University, Nagoya 461-8673, Japan
| | - Yuji Ito
- Department of Pediatrics, Graduate School of Medicine, Nagoya University, Nagoya 466-8550, Japan
- Department of Pediatrics, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki 444-0002, Japan
| | - Sho Narahara
- Department of Pediatrics, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki 444-0002, Japan
| | - Koji Noritake
- Department of Orthopedic Surgery, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki 444-0002, Japan
| | - Daiki Takahashi
- Department of Integrated Health Sciences, Graduate School of Medicine, Nagoya University, Nagoya 461-8673, Japan
| | - Kentaro Natsume
- Department of Integrated Health Sciences, Graduate School of Medicine, Nagoya University, Nagoya 461-8673, Japan
| | - Nobuhiko Ochi
- Department of Pediatrics, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki 444-0002, Japan
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12
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Takahashi D, Demizu Y, Koto M, Kubo N, Suefuji H, Ikawa H, Ohno T, Shioyama Y, Okimoto T, Tsuji H. Multicenter study of re-irradiation using carbon-ions for head and neck malignancies after photon radiotherapy. Cancer Med 2022; 11:3593-3601. [PMID: 35393701 PMCID: PMC9554451 DOI: 10.1002/cam4.4741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/25/2022] [Accepted: 03/29/2022] [Indexed: 11/25/2022] Open
Abstract
Purpose The goal of this multicenter retrospective study of patients with head and neck malignancies was to evaluate the efficacy and safety of carbon‐ion (C‐ion) radiotherapy (RT) after photon RT. Methods We enrolled 56 patients with head and neck malignancies who underwent re‐irradiation (re‐RT) using C‐ions between November 2003 and March 2019, treated previously with photon RT. The tumors at re‐RT were located in the sinonasal cavities (n = 20, 35.7%), skull base (n = 12, 21.4%), and orbit (n = 7, 12.5%). The tumors at the initial RT were located in the sinonasal cavities (n = 13, 23.2%), skull base (n = 9, 16.1%), and orbit (n = 9, 16.1%). The median period between the initial RT and re‐RT was 41 (4–568) months. The most common histology of re‐RT was squamous cell carcinoma (n = 11, 19.6%). The most commonly used protocol was 57.6 Gy (relative biological effectiveness) in 16 fractions (n = 23, 41.1%). Surgery preceded re‐RT in three patients (5.4%). One patient with malignant melanoma received concurrent chemotherapy. Results The 2‐year local control, progression‐free survival, and overall survival rates were 66.5%, 36.9%, and 67.9%, respectively. The median follow‐up time was 28 months. Two patients (3.6%) developed grade ≥ 3 acute toxicities, and 14 (25.0%) developed grade ≥ 3 late toxicities. A single patient had confirmed grade 5 dermatitis with infection. Conclusion Re‐RT using C‐ions for head and neck malignancies after photon RT is an effective treatment with tolerable toxicity.
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Affiliation(s)
- Daiki Takahashi
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Japan
| | - Yusuke Demizu
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Japan.,Department of Radiation Oncology, Hyogo Ion Beam Medical Center Kobe Proton Center, Kobe, Japan
| | - Masashi Koto
- QST Hospital, National Institutes for Quantum Sciences and Technology, Chiba, Japan
| | - Nobuteru Kubo
- Gunma University Heavy Ion Medical Center, Maebashi, Japan
| | | | - Hiroaki Ikawa
- QST Hospital, National Institutes for Quantum Sciences and Technology, Chiba, Japan
| | - Tatsuya Ohno
- Gunma University Heavy Ion Medical Center, Maebashi, Japan
| | | | - Tomoaki Okimoto
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Japan
| | - Hiroshi Tsuji
- QST Hospital, National Institutes for Quantum Sciences and Technology, Chiba, Japan
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13
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Ogura Y, Terashima K, Nanno Y, Park S, Suga M, Takahashi D, Matsuo Y, Sulaiman NS, Tokumaru S, Okimoto T, Toyama H, Fukumoto T. Factors associated with long-term survival in gemcitabine-concurrent proton radiotherapy for non-metastatic locally advanced pancreatic cancer: a single-center retrospective study. Radiat Oncol 2022; 17:32. [PMID: 35144647 PMCID: PMC8832744 DOI: 10.1186/s13014-022-02001-w] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 01/31/2022] [Indexed: 11/17/2022] Open
Abstract
Background Factors associated with long-term survival in gemcitabine-concurrent proton radiotherapy (GPT) for non-metastatic, locally advanced pancreatic cancer (LAPC) remain unclear. This study aimed to determine the factors associated with long-term survival in GPT for non-metastatic LAPC.
Methods The medical records of 123 patients with LAPC treated with GPT between February 2009 and December 2019 at Hyogo Ion Beam Medical Center were retrospectively reviewed to assess the factors associated with long-term survival outcomes. Results The median overall survival of the total cohort treated with GPT was 18.7 months. The 1- and 2-year overall, local progression-free, and progression-free survival rates were 70.4% and 35.7%, 78.2% and 59.0%, and 38.6% and 20.8%, respectively. Multivariate analysis revealed that LAPCs at the pancreatic body-tail and those without anterior peripancreatic invasion were independently associated with longer overall survival (P = 0.040 and P = 0.015, respectively). The median overall survival of patients with LAPC at the pancreatic body-tail and those with LAPC without anterior peripancreatic invasion were 24.1 and 28.1 months, respectively. LAPCs at the pancreatic body-tail had a higher volume ratio irradiated over 60 Gy equivalents at gross tumor volume than those at the pancreatic head (P < 0.001). LAPCs with anterior peripancreatic invasion had more peritoneal recurrence within 6 months after GTP than those without anterior peripancreatic invasion (P = 0.039). Conclusions GPT is a promising treatment option for patients with LAPC at the pancreatic body-tail and those with LAPC without anterior peripancreatic invasion.
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Affiliation(s)
- Yuta Ogura
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan.,Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, Hyogo, 679-5165, Japan
| | - Kazuki Terashima
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, Hyogo, 679-5165, Japan
| | - Yoshihide Nanno
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - SungChul Park
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, Hyogo, 679-5165, Japan
| | - Masaki Suga
- Department of Radiation Physics, Hyogo Ion Bseam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, Hyogo, 679-5165, Japan
| | - Daiki Takahashi
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, Hyogo, 679-5165, Japan
| | - Yoshiro Matsuo
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, Hyogo, 679-5165, Japan
| | - Nor Shazrina Sulaiman
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, Hyogo, 679-5165, Japan
| | - Sunao Tokumaru
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, Hyogo, 679-5165, Japan
| | - Tomoaki Okimoto
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, Hyogo, 679-5165, Japan
| | - Hirochika Toyama
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan.
| | - Takumi Fukumoto
- Division of Hepato-Biliary-Pancreatic Surgery, Department of Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
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14
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Matsunaga N, Ito T, Ito Y, Mizusawa J, Gu Y, Sanada S, Shirai Y, Takahashi D, Ochi N, Noritake K, Sugiura H. Decreased Balance Function in School-Aged Children with Behavioral Problems. Brain Sci 2022; 12:brainsci12010117. [PMID: 35053860 PMCID: PMC8773709 DOI: 10.3390/brainsci12010117] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/07/2022] [Accepted: 01/12/2022] [Indexed: 02/04/2023] Open
Abstract
Children with behavioral problems have a high risk of impaired motor performance. However, the characteristics of balance functions and their associations with behavioral traits are unclear in this population. This study aimed to evaluate balance functions and their relationships with the degree of behavioral problems in school-aged children. A total of 209 children, aged 6–10 years, were divided into two groups, those with and those without behavioral problems, using the Strengths and Difficulties Questionnaire (SDQ). Physical assessments included the one-leg standing test (OLST), the two-step test, and the five-times-sit-to-stand test. We compared the data between groups and assessed for correlations in terms of total difficulties and the SDQ subscale scores. Children with behavioral problems showed significantly reduced the OLST results (p < 0.001) and the two-step test results (p = 0.008). The five-times-sit-to-stand test results did not show significant differences between groups. The OLST results were significantly correlated with emotional symptoms (r = −0.22, p < 0.001), hyperactivity/inattention (r = −0.29, p < 0.001), peer relationship problems (r = −0.22, p < 0.001), and total difficulties (r = −0.32, p < 0.001). Meanwhile, the two-step test results showed no significant correlation with the SDQ scores. Children with behavioral problems have poor balance function, thereby increasing the risk for instability. This suggests that the balance function of children with behavioral problems needs to be considered.
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Affiliation(s)
- Naomichi Matsunaga
- Department of Integrated Health Sciences, Graduate School of Medicine, Nagoya University, Nagoya 461-8673, Japan; (N.M.); (T.I.); (Y.G.); (S.S.); (Y.S.); (D.T.)
| | - Tadashi Ito
- Department of Integrated Health Sciences, Graduate School of Medicine, Nagoya University, Nagoya 461-8673, Japan; (N.M.); (T.I.); (Y.G.); (S.S.); (Y.S.); (D.T.)
- Three-Dimensional Motion Analysis Room, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki 444-0002, Japan
| | - Yuji Ito
- Department of Pediatrics, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki 444-0002, Japan; (Y.I.); (N.O.)
| | - Jun Mizusawa
- Department of Rehabilitation, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki 444-0002, Japan;
| | - Yingzhi Gu
- Department of Integrated Health Sciences, Graduate School of Medicine, Nagoya University, Nagoya 461-8673, Japan; (N.M.); (T.I.); (Y.G.); (S.S.); (Y.S.); (D.T.)
| | - Shota Sanada
- Department of Integrated Health Sciences, Graduate School of Medicine, Nagoya University, Nagoya 461-8673, Japan; (N.M.); (T.I.); (Y.G.); (S.S.); (Y.S.); (D.T.)
| | - Yuya Shirai
- Department of Integrated Health Sciences, Graduate School of Medicine, Nagoya University, Nagoya 461-8673, Japan; (N.M.); (T.I.); (Y.G.); (S.S.); (Y.S.); (D.T.)
| | - Daiki Takahashi
- Department of Integrated Health Sciences, Graduate School of Medicine, Nagoya University, Nagoya 461-8673, Japan; (N.M.); (T.I.); (Y.G.); (S.S.); (Y.S.); (D.T.)
| | - Nobuhiko Ochi
- Department of Pediatrics, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki 444-0002, Japan; (Y.I.); (N.O.)
| | - Koji Noritake
- Department of Orthopedic Surgery, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki 444-0002, Japan;
| | - Hideshi Sugiura
- Department of Integrated Health Sciences, Graduate School of Medicine, Nagoya University, Nagoya 461-8673, Japan; (N.M.); (T.I.); (Y.G.); (S.S.); (Y.S.); (D.T.)
- Correspondence: ; Tel.: +81-052-719-1504
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15
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Gu Y, Ito T, Ito Y, Noritake K, Ochi N, Matsunaga N, Takahashi D, Sugiura H. Factors Related to Locomotive Syndrome in School-Aged Children in Okazaki: A Cross-Sectional Study. Healthcare (Basel) 2021; 9:healthcare9111595. [PMID: 34828640 PMCID: PMC8619500 DOI: 10.3390/healthcare9111595] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/16/2021] [Accepted: 11/17/2021] [Indexed: 11/16/2022] Open
Abstract
The relationship of locomotive syndrome with other physical characteristics and lifestyle habits in children has not been fully elucidated. The aim of this study was to assess the prevalence of children's locomotive syndrome, and to determine its relationship with the above-mentioned factors. This was a cross-sectional study of 285 elementary school children who volunteered to participate in a medical checkup for physical function. Data was collected via medical examination, clinical measurements, and questionnaires. A multivariable logistic regression model was used to determine the relationship (odds ratios; ORs) of participants' characteristics, physical functions, and other outcomes determined by questionnaire on locomotive syndrome. The following factors were related to locomotive syndrome: older age (OR = 1.421, 95% confidence interval [CI] [1.039, 1.945]), male sex (OR = 4.011, 95% CI [2.189, 7.347]), and more time spent watching television per day (OR = 1.281, 95% CI [1.001, 1.640]). These results may assist in the encouragement of children to perform appropriate physical activities and avoid unhealthy lifestyle habits, reducing the occurrence of locomotive syndrome.
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Affiliation(s)
- Yingzhi Gu
- Department of Integrated Health Sciences, Graduate School of Medicine, Nagoya University, Nagoya 461-8673, Japan; (Y.G.); (T.I.); (N.M.); (D.T.)
| | - Tadashi Ito
- Department of Integrated Health Sciences, Graduate School of Medicine, Nagoya University, Nagoya 461-8673, Japan; (Y.G.); (T.I.); (N.M.); (D.T.)
- Three-Dimensional Motion Analysis Room, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki 444-0002, Japan
| | - Yuji Ito
- Department of Pediatrics, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki 444-0002, Japan; (Y.I.); (N.O.)
| | - Koji Noritake
- Department of Orthopedic Surgery, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki 444-0002, Japan;
| | - Nobuhiko Ochi
- Department of Pediatrics, Aichi Prefectural Mikawa Aoitori Medical and Rehabilitation Center for Developmental Disabilities, Okazaki 444-0002, Japan; (Y.I.); (N.O.)
| | - Naomichi Matsunaga
- Department of Integrated Health Sciences, Graduate School of Medicine, Nagoya University, Nagoya 461-8673, Japan; (Y.G.); (T.I.); (N.M.); (D.T.)
| | - Daiki Takahashi
- Department of Integrated Health Sciences, Graduate School of Medicine, Nagoya University, Nagoya 461-8673, Japan; (Y.G.); (T.I.); (N.M.); (D.T.)
| | - Hideshi Sugiura
- Department of Integrated Health Sciences, Graduate School of Medicine, Nagoya University, Nagoya 461-8673, Japan; (Y.G.); (T.I.); (N.M.); (D.T.)
- Correspondence: ; Tel.: +81-052-719-1504
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16
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Aoki K, Tamaoki N, Seki A, Narazaki K, Takahashi D, Horitsugu K. Synthesis and Properties of Aromatic-Terminated Diacetylene Organogelators and Their Application to Photopatterning of Polydiacetylenes. Langmuir 2021; 37:13160-13169. [PMID: 34706543 DOI: 10.1021/acs.langmuir.1c02420] [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] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A series of simply structured diacetylene-diamide-based gelators (DAGs) with aromatic terminals were synthesized, and their gelation and subsequent photopolymerization abilities were analyzed. DAGs with an adequate spacer length (n) and tolyl terminals (DA-Tn) interacted with aromatic solvents, such as benzene and xylenes, at elevated temperatures. During the subsequent cooling process, the DAGs interacted with each other through CH-π interactions at their terminal positions. They also formed one-dimensional hydrogen bonding arrays through secondary amides, leading to stable organogels. These gels polymerized into π-conjugated polydiacetylenes (PDAs) under ultraviolet irradiation. In the p-xylene gels of DA-Tn, the spacer length exerted characteristic odd-even effects on the photopolymerization rates over a certain range (n = 3-6), which can be explained by periodic changes in the uniformity of the molecular packing modes. When the gelling solvent was changed to cyclohexane, the gelation and photopolymerization abilities were greatly improved because the DA-Tn gel networks became highly crystallized and transparent to ultraviolet light (254 nm). The ultimate conversion to PDA from DA-T8/cyclohexane gels was 45.2 wt %. Applying photolithographic techniques to the DAG with excellent photopolymerizability in the film state, we successfully fabricated microscale photopatterns of PDA. We also established a convenient removal process (development process) of DA monomers in unexposed areas. The resulting PDA patterns were quite stable to ambient light stimuli.
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Affiliation(s)
- Ken'ichi Aoki
- Department of Chemistry, Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Nobuyuki Tamaoki
- Research Institute for Electronic Science, Hokkaido University, N20, W10, Kita-Ku, Sapporo 001-0020, Japan
| | - Atsushi Seki
- Department of Chemistry, Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Kenta Narazaki
- Department of Chemistry, Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Daiki Takahashi
- Department of Chemistry, Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Kousuke Horitsugu
- Department of Chemistry, Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
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Park S, Demizu Y, Suga M, Taniguchi S, Tanaka S, Maehata I, Takeda M, Takahashi D, Matsuo Y, Sulaiman NS, Terashima K, Tokumaru S, Furukawa K, Okimoto T. Predicted probabilities of brain injury after carbon ion radiotherapy for head and neck and skull base tumors in long-term survivors. Radiother Oncol 2021; 165:152-158. [PMID: 34718054 DOI: 10.1016/j.radonc.2021.10.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 10/13/2021] [Accepted: 10/18/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND AND PURPOSE We aimed to determine the risk factors for radiation-induced brain injury (RIBI1) after carbon ion radiotherapy (CIRT) to predict their probabilities in long-term survivors. MATERIALS AND METHODS We evaluated 104 patients with head, neck, and skull base tumors who underwent CIRT in a regimen of 32 fractions and were followed up for at least 24 months. RIBI was assessed using the Common Terminology Criteria for Adverse Events. RESULTS The median follow-up period was 45.5 months; 19 (18.3 %) patients developed grade ≥2 RIBI. The maximal absolute dose covering 5 mL of the brain (D5ml) was the only significant risk factor for grade ≥2 RIBI in the multivariate logistic regression analysis (p = 0.001). The tolerance doses of D5ml for the 5% and 50% probabilities of developing grade ≥2 RIBI were estimated to be 55.4 Gy (relative biological effectiveness [RBE]) and 68.4 Gy (RBE) by a logistic model, respectively. CONCLUSION D5ml was most significantly associated with grade ≥2 RIBI and may enable the prediction of its probability.
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Affiliation(s)
- SungChul Park
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Japan.
| | - Yusuke Demizu
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Japan; Department of Radiation Oncology, Hyogo Ion Beam Medical Center Kobe Proton Center, Japan
| | - Masaki Suga
- Department of Radiation Physics, Hyogo Ion Beam Medical Center, Tatsuno, Japan
| | - Shingo Taniguchi
- Department of Radiation Technology, Hyogo Ion Beam Medical Center, Tatsuno, Japan
| | - Shinichi Tanaka
- Department of Radiation Technology, Hyogo Ion Beam Medical Center, Tatsuno, Japan
| | - Itsumi Maehata
- Department of Radiation Technology, Hyogo Ion Beam Medical Center, Tatsuno, Japan
| | - Mikuni Takeda
- Department of Radiation Technology, Hyogo Ion Beam Medical Center, Tatsuno, Japan
| | - Daiki Takahashi
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Japan
| | - Yoshiro Matsuo
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Japan
| | | | - Kazuki Terashima
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Japan
| | - Sunao Tokumaru
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Japan
| | - Kyoji Furukawa
- Biostatistics Center, Kurume University Graduate School of Medicine, Fukuoka, Japan
| | - Tomoaki Okimoto
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Japan
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18
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Okada-Nozaki Y, Fujimoto S, Aoshima C, Kamo Y, Okano-Kawaguchi Y, Takamura K, Kudo A, Takahashi D, Hiki M, Dohi T, Okazaki S, Tomizawa N, Minamino T. Optimal measurement location of on-site based CT-derived FFR on midterm prognosis. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0194] [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: 11/15/2022] Open
Abstract
Abstract
Background
Fractional Flow Reserve (FFR) derived from coronary computed tomography angiography (CCTA) enables anatomical and hemodynamical assessment of coronary artery disease. CT-FFR, which can be acquired on-site workstation using fluid structure interaction during the multiple optimal diastolic phase, has an incremental diagnostic value over conventional CCTA. However, few studies are focused on investigating the appropriate measurement location of CT-FFR, considering the prognosis, using CCTA as a standalone modality.
Purpose
The aim of this study is to assess the clinical impact on CT-FFR with an appropriate measurement.
Methods
A total of 370 consecutive patients who underwent CCTA in a single-heartbeat scan with a phase window of 70% to 99% of the R-R interval, showing 50–90% stenosis of at least one major epicardial vessel measuring ≥1.8 mm in diameter on CCTA were retrospectively analyzed and followed during a median follow up 2.9 years. CT-FFR values were measured at three points: 1, 2 cm distal to a target lesion (CT-FFR1cm, 2cm) and the vessel terminus (CT-FFRlowest), and a CT-FFR value ≤0.80 was considered abnormal. The endpoint was MACE, a composite of cardiac death, non-fatal MI, and unplanned revascularization.
Results
The incidence of MACE occurred in 8.4% (31/370) of the whole patients, including four cardiac deaths, ten all cause deaths, two non-fatal MI, and twenty unplanned revascularization. The Kaplan-Meier survival analysis demonstrated a significantly higher cumulative MACE rate in patients with positive CT-FFR1cm and 2cm than those with negative CT-FFR1cm and 2cm, while there was no significant difference between negative and positive in CT-FFRlowest, among patients with negative CT-FFR1cm and 2cm (Figure 1). Among 221 patients, who did not perform early revascularization within 90 days from CCTA, there was no significant difference in CT-FFRlowest in the incidence of MACE. In contrast, the risk of MACE was significantly higher in both positive CT-FFR1cm and CT-FFR2cm (Figure 2).
Conclusion
From a view point of clinical outcome for patients with moderate to severe stenosis on CCTA, a CT-FFR value when measured at 1-to-2 cm distal to a target lesion could be feasible for the deferral of unnecessary invasive coronary angiography safely. Moreover, CT-FFR1–2cm showed better risk stratification measurement rather than CT-FFRlowest, based on future adverse cardiac event.
Funding Acknowledgement
Type of funding sources: Private company. Main funding source(s): Canon Medical Systems Corporation Kaplan-Meier 1Kaplan-Meier 2
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Affiliation(s)
- Y Okada-Nozaki
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine, Tokyo, Japan
| | - S Fujimoto
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine, Tokyo, Japan
| | - C Aoshima
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine, Tokyo, Japan
| | - Y Kamo
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine, Tokyo, Japan
| | - Y Okano-Kawaguchi
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine, Tokyo, Japan
| | - K Takamura
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine, Tokyo, Japan
| | - A Kudo
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine, Tokyo, Japan
| | - D Takahashi
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine, Tokyo, Japan
| | - M Hiki
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine, Tokyo, Japan
| | - T Dohi
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine, Tokyo, Japan
| | - S Okazaki
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine, Tokyo, Japan
| | - N Tomizawa
- Juntendo University Graduate School of Medicine, Department of Radiology, Tokyo, Japan
| | - T Minamino
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Biology and Medicine, Tokyo, Japan
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19
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Tsubonouchi Y, Takahashi D, Berber MR, Mohamed EA, Zahran ZN, Alenad AM, Althubiti NA, Yagi M. Highly selective electrocatalysis for carbon dioxide reduction to formic acid by a Co(II) complex with an equatorial N4 ligand. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138545] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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20
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Barbosa LM, Santiago MB, Moretto VT, Athanazio D, Takahashi D, Reis EG, Lopes M, Lemaire D, Reis MG. Toll-like receptor 9 polymorphisms in brazilian patients with systemic lupus erythematosus: a pilot study. BRAZ J BIOL 2021; 83:e244123. [PMID: 34161457 DOI: 10.1590/1519-6984.244123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 01/15/2021] [Indexed: 11/22/2022] Open
Abstract
Toll-like receptor 9 (TLR9) is an important component of the innate immune system and have been associated with several autoimmune diseases, such as Systemic Lupus Erythematosus (SLE). The aim of this study was to investigate polymorphisms in TLR9 gene in a Brazilian SLE patients group and their association with clinical manifestation, particularly Jaccoud's arthropathy (JA). We analyzed DNA samples from 204 SLE patients, having a subgroup of them presenting JA (n=24). A control group (n=133) from the same city was also included. TLR9 single nucleotide polymorphisms (SNPs) (-1237 C>T and +2848 G>A) were identified by sequencing analysis. The TLR9 gene genotype frequency was similar both in SLE patients and the control group. In the whole SLE population, an association between the homozygosis of allele C at position -1237 with psychosis and anemia (p < 0.01) was found. Likewise, the homozygosis of allele G at position +2848 was associated with a discoid rash (p < 0.05). There was no association between JA and TLR9 polymorphisms. These data show that TLR9 polymorphisms do not seem to be a predisposing factor for SLE in the Brazilian population, and that SNPs are not associated with JA.
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Affiliation(s)
- L M Barbosa
- Fundação Oswaldo Cruz - FIOCRUZ, Centro de Pesquisa Gonçalo Moniz - CPqGM, Salvador, BA, Brasil.,Escola Bahiana de Medicina e Saúde Pública - EBMSP, Salvador, BA, Brasil
| | - M B Santiago
- Escola Bahiana de Medicina e Saúde Pública - EBMSP, Salvador, BA, Brasil
| | - V T Moretto
- Fundação Oswaldo Cruz - FIOCRUZ, Centro de Pesquisa Gonçalo Moniz - CPqGM, Salvador, BA, Brasil
| | - D Athanazio
- Fundação Oswaldo Cruz - FIOCRUZ, Centro de Pesquisa Gonçalo Moniz - CPqGM, Salvador, BA, Brasil
| | - D Takahashi
- Fundação Oswaldo Cruz - FIOCRUZ, Centro de Pesquisa Gonçalo Moniz - CPqGM, Salvador, BA, Brasil
| | - E G Reis
- Fundação Oswaldo Cruz - FIOCRUZ, Centro de Pesquisa Gonçalo Moniz - CPqGM, Salvador, BA, Brasil
| | - M Lopes
- Universidade Federal da Bahia - UFBA, Faculdade de Medicina da Bahia, Salvador, BA, Brasil
| | - D Lemaire
- Universidade Federal da Bahia - UFBA, Faculdade de Medicina da Bahia, Salvador, BA, Brasil
| | - M G Reis
- Fundação Oswaldo Cruz - FIOCRUZ, Centro de Pesquisa Gonçalo Moniz - CPqGM, Salvador, BA, Brasil.,Universidade Federal da Bahia - UFBA, Faculdade de Medicina da Bahia, Salvador, BA, Brasil.,Yale School of Public Health, New Haven, CT, USA
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21
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Magota K, Sakaguchi S, Lee JS, Yamamoto M, Takahashi D, Nagano AJ, Setoguchi H. Phylogeographic analysis of Saxifraga fortunei complex (Saxifragaceae) reveals multiple origins of morphological and ecological variations in the Japanese Archipelago. Mol Phylogenet Evol 2021; 163:107230. [PMID: 34133947 DOI: 10.1016/j.ympev.2021.107230] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 06/04/2021] [Accepted: 06/11/2021] [Indexed: 11/28/2022]
Abstract
Phenotypic polymorphism within a species is a notable phenomenon in evolutionary biology to understand the process of adaptive speciation and other historical events. The Saxifraga fortunei complex is a widespread herb found in East Asia. It includes several ecotypic taxa corresponding to their habitat environments. The distribution of the various ecotypes in a limited area of the Japanese Archipelago makes the species a suitable model to investigate the impact of population demographic history and natural selection on lineage diversification. Here, Sanger-based sequencing was used to estimate the divergence timeframe between populations of the Eurasian continent and Japan. Genome-wide SNPs obtained by ddRAD sequencing were used to investigate the phylogeographic origins of ecotypic taxa. The phylogenetic analyses revealed the divergence of the Japanese population from the continental population in the late Miocene. Two distinct regional clades of North and South Japan were identified; phenotypic diversification was evident only in the southern clade. The South Japan clades displayed a historical distribution expansion from north to south. The phenotypic variations appeared to have generated during the expansion. The ecotypic boundaries were incongruent with the genetic grouping. We propose that morphological and ecological specialization in Japanese populations was repeatedly generated by local natural selection.
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Affiliation(s)
- Kana Magota
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto, Kyoto 606-8501, Japan.
| | - Shota Sakaguchi
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto, Kyoto 606-8501, Japan
| | - Jung-Sim Lee
- Korean National Arboretum, 415 Gwangneung Sumokwon-ro, Soheul-eup, Pocheon-si, Gyeonggi-Province 11186, Republic of Korea
| | - Masaya Yamamoto
- Hyogo University of Teacher Education, 942-1 Shimokume, Kato, Hyogo 673-1494, Japan
| | - Daiki Takahashi
- Kawatabi Field Science Center, Graduate School of Agricultural Science, Tohoku University, 232-3 Yomogida, Naruko-onsen, Osaki, Miyagi 989-6711, Japan
| | - Atsushi J Nagano
- Faculty of Agriculture, Ryukoku University, 1-5 Yokotani, Seta Oe-cho, Otsu, Shiga 520-2194, Japan
| | - Hiroaki Setoguchi
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto, Kyoto 606-8501, Japan
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22
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Takahashi D, Arimoto H. Selective autophagy as the basis of autophagy-based degraders. Cell Chem Biol 2021; 28:1061-1071. [PMID: 34087173 DOI: 10.1016/j.chembiol.2021.05.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 04/23/2021] [Accepted: 05/07/2021] [Indexed: 01/13/2023]
Abstract
Degrader technologies, which enable the chemical knockdown of disease-causing proteins, are promising for drug discovery. After two decades of research, degraders using the ubiquitin-proteasome system (UPS) are currently in clinical trials. However, the UPS substrates are mainly limited to soluble proteins. Autophagy-targeting chimeras and autophagosome-tethering compounds are degraders that use autophagy, which has functions complementary to the UPS. They can degrade organelles and aggregate-prone proteins, making them promising treatments against age-related conditions such as mitochondrial dysfunction and neurodegenerative diseases. The molecular mechanism of selective autophagy is an ongoing research topic, which explains why autophagy-based degraders were not available until recently. In this review, we introduce four classifications of selective autophagy mechanisms to facilitate the understanding of the degrader design.
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Affiliation(s)
- Daiki Takahashi
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Hirokazu Arimoto
- Graduate School of Life Sciences, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan.
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23
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Sakaguchi S, Asaoka Y, Takahashi D, Isagi Y, Imai R, Nagano AJ, Qiu YX, Li P, Lu R, Setoguchi H. Inferring historical survivals of climate relicts: the effects of climate changes, geography, and population-specific factors on herbaceous hydrangeas. Heredity (Edinb) 2021; 126:615-629. [PMID: 33510468 PMCID: PMC8115046 DOI: 10.1038/s41437-020-00396-4] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 11/25/2020] [Accepted: 12/08/2020] [Indexed: 01/29/2023] Open
Abstract
Climate relicts hold considerable importance because they have resulted from numerous historical changes. However, there are major interspecific variations among the ways by which they survived climate changes. Therefore, investigating the factors and timing that affected population demographics can expand our understanding of how climate relicts responded to historical environmental changes. Here, we examined herbaceous hydrangeas of genus Deinanthe in East Asia, which show limited distributions and a remarkable disjunction between Japan and central China. Chloroplast genome and restriction site-associated DNA sequencing revealed that speciation event occurred in the late Miocene (ca. 7-9 Mya) in response to global climate change. Two lineages apparently remained not branched until the middle Quaternary, and afterwards started to diverge to regional population groups. The narrow endemic species in central China showed lower genetic diversity (He = 0.082), as its population size rapidly decreased during the Holocene due to isolation in montane refugia. Insular populations in the three Japanese islands (He = 0.137-0.160) showed a genetic structure that was inconsistent with sea barriers, indicating that it was shaped in the glacial period when its range retreated to coastal refugia on the exposed sea floor. Demographic modelling by stairway-plot analysis reconstructed variable responses of Japanese populations: some experienced glacial bottlenecks in refugial isolation, while post-glacial range expansion seemingly exerted founder effects on other populations. Overall, this study demonstrated the involvement of not just one, but multiple factors, such as the interplay between climate changes, geography, and other population-specific factors, that determine the demographics of climate relicts.
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Affiliation(s)
- Shota Sakaguchi
- Graduate School of Human and Environmental Studies, Kyoto University, Kyoto, 606-8501, Japan.
| | - Yui Asaoka
- Faculty of Integrated Human Studies, Kyoto University, Kyoto, 606-8501, Japan
- Primate Research Institute, Kyoto University, Inuyama, Aichi, 484-8506, Japan
| | - Daiki Takahashi
- Graduate School of Human and Environmental Studies, Kyoto University, Kyoto, 606-8501, Japan
| | - Yuji Isagi
- Division of Forest and Biomaterials Science, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan
| | - Ryosuke Imai
- Iriomote Station, Tropical Biosphere Research Centre, University of the Ryukyus, Okinawa, 907-1541, Japan
| | - Atsushi J Nagano
- Faculty of Agriculture, Ryukoku University, Shiga, 520-2194, Japan
| | - Ying-Xiong Qiu
- College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Pan Li
- College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Ruisen Lu
- College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Hiroaki Setoguchi
- Graduate School of Human and Environmental Studies, Kyoto University, Kyoto, 606-8501, Japan
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24
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Lee D, Komatsu S, Terashima K, Toyama H, Matsuo Y, Takahashi D, Suga M, Nishimura N, Tai K, Kido M, Demizu Y, Tokumaru S, Okimoto T, Sasaki R, Fukumoto T. Surgical spacer placement for proton radiotherapy in locally advanced pancreatic body and tail cancers: initial clinical results. Radiat Oncol 2021; 16:3. [PMID: 33407648 PMCID: PMC7788736 DOI: 10.1186/s13014-020-01731-z] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 12/17/2020] [Indexed: 11/16/2022] Open
Abstract
Background Particle radiotherapy has increasingly gained acceptance for locally advanced pancreatic cancers owing to superior tumor conformity and dosimetry compared to conventional photon radiotherapy. However, the close proximity of the pancreas to the stomach and duodenum leads to radiation-induced gastrointestinal toxicities, which hinder the delivery of curative doses to the tumor. To overcome this problem, a surgical spacer was placed between the tumor and gastrointestinal tract, and subsequent proton radiotherapy was performed in this study. Methods Data from 9 patients who underwent surgical spacer placement and subsequent proton radiotherapy were analyzed. The safety and feasibility of the spacer placement surgery were evaluated; the impact of the spacer on dosimetry was also assessed using dose volume histogram (DVH) analyses, before and after surgical spacer placement. Results Surgical spacer placement and subsequent proton radiotherapy were successfully completed in all cases. Surgical spacer placement significantly improved the dose intensity covering 95%, mean, and minimum doses for the gross tumor volume, and the clinical and planning target volume based on the DVH, while respecting the dose constraints of the gastrointestinal tract. Based on the Common Terminology Criteria for Adverse Events, two patients (22.2%) developed gastrointestinal ulcer (Grade 2) at 1 and 35 months, and one patient (11.1%) developed gastric perforation (Grade 4) at 4 months after proton radiotherapy. Conclusions Surgical spacer placement in the locally advanced pancreatic body and tail cancers is relatively safe and technically feasible. Comparing radiation plans, surgical spacer placement seems to improve the dose distribution in the locally advanced pancreatic body and tail cancers, which are close to the gastrointestinal tract.
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Affiliation(s)
- Dongha Lee
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2, Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Shohei Komatsu
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2, Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan.
| | - Kazuki Terashima
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, Hyogo, 679-5165, Japan
| | - Hirochika Toyama
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2, Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Yoshiro Matsuo
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, Hyogo, 679-5165, Japan
| | - Daiki Takahashi
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, Hyogo, 679-5165, Japan
| | - Masaki Suga
- Department of Radiation Physics, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, Hyogo, 679-5165, Japan
| | - Naoko Nishimura
- Department of Radiation Technology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, Hyogo, 679-5165, Japan
| | - Kentaro Tai
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2, Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Masahiro Kido
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2, Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Yusuke Demizu
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, Hyogo, 679-5165, Japan.,Department of Radiation Oncology, Hyogo Ion Beam Medical Center Kobe Proton Center, 1-6-8, Minatojimaminami-machi, chuo-ku, Kobe, Hyogo, 650-0047, Japan
| | - Sunao Tokumaru
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, Hyogo, 679-5165, Japan
| | - Tomoaki Okimoto
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Kouto, Shingu-cho, Tatsuno, Hyogo, 679-5165, Japan
| | - Ryohei Sasaki
- Division of Radiation Oncology, Kobe University Graduate School of Medicine, 7-5-2, Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
| | - Takumi Fukumoto
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, 7-5-2, Kusunoki-cho, Chuo-ku, Kobe, Hyogo, 650-0017, Japan
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25
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Okishio S, Yamaguchi K, Ishiba H, Tochiki N, Yano K, Takahashi A, Kataoka S, Okuda K, Seko Y, Liu Y, Fujii H, Takahashi D, Ito Y, Kamon J, Umemura A, Moriguchi M, Yasui K, Okanoue T, Itoh Y. PPARα agonist and metformin co-treatment ameliorates NASH in mice induced by a choline-deficient, amino acid-defined diet with 45% fat. Sci Rep 2020; 10:19578. [PMID: 33177546 PMCID: PMC7658250 DOI: 10.1038/s41598-020-75805-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 10/13/2020] [Indexed: 02/06/2023] Open
Abstract
We explored the beneficial effects of GW7647, a peroxisome proliferator activated receptor α (PPARα) agonist, and metformin, an anti-diabetic drug on an advanced nonalcoholic steatohepatitis (NASH) model in rodents and investigated the possible mechanisms involved. Mice were fed control chow or a choline-deficient l-amino acid-defined diet containing 45% fat (HF-CDAA). The mice fed HF-CDAA diets for 16 weeks were divided into four groups: the no treatment (HF-CDAA), HF-CDAA containing 1000 mg/kg metformin, HF-CDAA containing 10 mg/kg GW7647, and HF-CDAA with both metformin and GW7647 groups. Metformin alone slightly deteriorated the aspartate and alanine aminotransferase (AST/ALT) values, whereas co-treatment with GW7647 and metformin greatly suppressed liver injury and fibrosis via activation of the AMP-activated protein kinase (AMPK) pathway. Further study revealed that co-treatment decreased the expression of inflammatory-, fibrogenesis-, and endoplasmic reticulum (ER) stress-related genes and increased the oxidized nicotinamide adenine dinucleotide (NAD)/reduced nicotinamide adenine dinucleotide (NADH) ratio, suggesting the superiority of co-treatment due to restoration of mitochondrial function. The additive benefits of a PPARα agonist and metformin in a HF-CDAA diet-induced advanced NASH model was firstly demonstrated, possibly through restoration of mitochondrial function and AMPK activation, which finally resulted in suppression of hepatic inflammation, ER stress, then, fibrosis.
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Affiliation(s)
- Shinya Okishio
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Kanji Yamaguchi
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan.
| | - Hiroshi Ishiba
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Nozomi Tochiki
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Kota Yano
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Aya Takahashi
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Seita Kataoka
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Keiichiroh Okuda
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Yuya Seko
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Yu Liu
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Hideki Fujii
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Daiki Takahashi
- Pharmaceutical Research Department, Biological Research Laboratories, Nissan Chemical Corporation, Saitama, Japan
| | - Yusuke Ito
- Pharmaceutical Research Department, Biological Research Laboratories, Nissan Chemical Corporation, Saitama, Japan
| | - Junji Kamon
- Pharmaceutical Research Department, Biological Research Laboratories, Nissan Chemical Corporation, Saitama, Japan
| | - Atsushi Umemura
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Michihisa Moriguchi
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Kohichiroh Yasui
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
| | - Takeshi Okanoue
- Department of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Osaka, Japan
| | - Yoshito Itoh
- Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyou-ku, Kyoto, 602-8566, Japan
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Hara R, Takahashi D, Takehara T, Amano T, Minami M. Inhibitory synaptic transmissions to the bed nucleus of the stria terminalis neurons projecting to the ventral tegmental area are enhanced in rats exposed to chronic mild stress. Mol Brain 2020; 13:139. [PMID: 33059723 PMCID: PMC7560094 DOI: 10.1186/s13041-020-00684-4] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 10/09/2020] [Indexed: 11/19/2022] Open
Abstract
The comorbidities of depression and chronic pain have long been recognized in the clinic, and several preclinical studies have demonstrated depression-like behaviors in animal models of chronic pain. These findings suggest a common neuronal basis for depression and chronic pain. Recently, we reported that the mesolimbic dopaminergic system was tonically suppressed during chronic pain by enhanced inhibitory synaptic inputs to neurons projecting from the dorsolateral bed nucleus of the stria terminalis (dlBNST) to the ventral tegmental area (VTA), suggesting that tonic suppression of the mesolimbic dopaminergic system by this neuroplastic change may be involved in chronic pain-induced depression-like behaviors. In this study, we hypothesized that inhibitory synaptic inputs to VTA-projecting dlBNST neurons are also enhanced in animal models of depression, thereby suppressing the mesolimbic dopaminergic system. To test this hypothesis, we performed whole-cell patch-clamp electrophysiology using brain slices prepared from rats exposed to chronic mild stress (CMS), a widely used animal model of depression. The results showed a significant enhancement in the frequency of spontaneous inhibitory postsynaptic currents in VTA-projecting dlBNST neurons in the CMS group compared with the no stress group. The findings revealed enhanced inhibitory synaptic inputs to VTA-projecting dlBNST neurons in this rat model of depression, suggesting that this neuroplastic change is a neuronal mechanism common to depression and chronic pain that causes dysfunction of the mesolimbic dopaminergic system, thereby inducing depression-like behaviors.
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Affiliation(s)
- Ryuto Hara
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Daiki Takahashi
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Tatsuhiro Takehara
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Taiju Amano
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Masabumi Minami
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan.
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Takahashi D, Demizu Y, Park SC, Matsuo Y, Sulaiman NS, Terashima K, Tokumaru S, Akashi M, Okimoto T. Phase I dose-escalation trial of S-1 combined with carbon-ion radiotherapy for sinonasal squamous cell carcinoma. J Radiat Res 2020; 61:733-739. [PMID: 32642753 PMCID: PMC7482161 DOI: 10.1093/jrr/rraa037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 04/19/2020] [Indexed: 06/11/2023]
Abstract
This study aimed to determine the maximum tolerance dose (MTD) and to estimate the recommended dose (RD) of concomitant S-1 with carbon-ion radiotherapy (RT) for sinonasal squamous cell carcinoma (SCC). Nine patients with sinonasal SCC received carbon-ion RT with escalating doses of S-1 according to phase I methods. Doses of 40, 60 and 80 mg/m2/day were administered twice daily in dose levels 1, 2 and 3, respectively, from days 1 to 14 and 22 to 35. Carbon-ion RT was administered at a dose of 70.4 Gy (relative biological effectiveness) in 32 fractions, 5 days a week. Two patients developed grade 3 acute dermatitis. However, none developed dose-limiting toxicities. Therefore, the MTD of S-1 could not be determined; the RD was estimated to be 80 mg/m2/day with concurrent carbon-ion RT. Partial response and stable disease were noted in 5 and 4 patients, respectively. The 2-year overall survival and local control rates were 56 and 74%, respectively. Overall, 2 patients developed ≥grade 3 late toxicities; among them, 1 patient developed grade 3 cataract and the other developed grade 4 cataract, optic nerve disorder and hearing impairment. To the best of our knowledge, this phase I study is the first clinical trial to evaluate concomitant S-1 with carbon-ion RT for sinonasal SCC. The MTD of S-1 could not be determined, and the RD was estimated to be 80 mg/m2/day. This study demonstrated a manageable safety profile for this combination. The observed outcomes may facilitate further evaluation of this novel therapy.
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Affiliation(s)
- Daiki Takahashi
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Koto, Shingu-cho, Tatsuno, Hyogo 679-5165, Japan
| | - Yusuke Demizu
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Koto, Shingu-cho, Tatsuno, Hyogo 679-5165, Japan
- Department of Radiation Oncology, Hyogo Ion Beam Medical Center Kobe Proton Center, 1-6-8 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Sung Chul Park
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Koto, Shingu-cho, Tatsuno, Hyogo 679-5165, Japan
| | - Yoshiro Matsuo
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Koto, Shingu-cho, Tatsuno, Hyogo 679-5165, Japan
| | - Nor Shazrina Sulaiman
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Koto, Shingu-cho, Tatsuno, Hyogo 679-5165, Japan
| | - Kazuki Terashima
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Koto, Shingu-cho, Tatsuno, Hyogo 679-5165, Japan
| | - Sunao Tokumaru
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Koto, Shingu-cho, Tatsuno, Hyogo 679-5165, Japan
| | - Masaya Akashi
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, Hyogo, Japan, 650-0017
| | - Tomoaki Okimoto
- Department of Radiology, Hyogo Ion Beam Medical Center, 1-2-1 Koto, Shingu-cho, Tatsuno, Hyogo 679-5165, Japan
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Iyama S, Takada K, Yoshida M, Takahashi D, Kobune M. Acquired amegakaryocytic thrombocytopenic purpura possibly induced by anti-PD-1 antibody. Ann Hematol 2020; 99:1669-1670. [PMID: 32367179 DOI: 10.1007/s00277-020-04053-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 04/22/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Satoshi Iyama
- Department of Hematology, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan.
| | - K Takada
- Department of Hematology, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan.,Department of Medical Oncology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - M Yoshida
- Department of Medical Oncology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - D Takahashi
- Research and Development Department, Central Blood Institute, Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
| | - M Kobune
- Department of Hematology, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, 060-8543, Japan
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Hara R, Asaoka Y, Takahashi D, Nomura H, Amano T, Minami M. Disappearance of the inhibitory effect of neuropeptide Y within the dorsolateral bed nucleus of the stria terminalis in rats with chronic pain. Neurosci Lett 2020; 728:134958. [PMID: 32278943 DOI: 10.1016/j.neulet.2020.134958] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 03/25/2020] [Accepted: 04/04/2020] [Indexed: 01/24/2023]
Abstract
We recently showed that the mesolimbic dopaminergic system was tonically suppressed during chronic pain by enhanced corticotropin releasing factor (CRF) signaling within the dorsolateral bed nucleus of the stria terminalis (dlBNST), and that inhibition of intra-dlBNST CRF signaling restored the mesolimbic dopaminergic system function. Specifically, bilateral intra-dlBNST injections of the CRF type 1 receptor antagonist NBI27914 increased intra-nucleus accumbens dopamine release and induced reward-related behaviors in rats with chronic pain. Here, we used a conditioned place preference (CPP) test to explore whether intra-dlBNST injections of neuropeptide Y (NPY) restored the mesolimbic reward system function in chronic pain rats, because we previously showed that NPY had an effect opposite to that of CRF in dlBNST neurons. Specifically, CRF depolarized type II dlBNST neurons whereas NPY hyperpolarized them. However, unexpectedly, intra-dlBNST NPY injections had no effect on CPP test outcomes. Then, we compared the effects of NPY on the membrane potentials of type II dlBNST neurons of sham-operated control rats and those of chronic pain animals. Whole-cell patch-clamp electrophysiology revealed that NPY hyperpolarized type II dlBNST neurons in the sham-operated group. By contrast, in the chronic pain group, NPY did not hyperpolarize, but rather depolarized, type II dlBNST neurons. These results indicate that NPY no longer hyperpolarizes type II dlBNST neurons in rats with chronic pain, therefore it does not reverse the excitatory effects of CRF. This may be why intra-dlBNST injections of NPY into chronic pain rats did not exhibit a rewarding effect in the CPP test, whereas intra-dlBNST injections of NBI27914 did. This is the first study to demonstrate a chronic pain-induced neuroplastic change in NPY signaling in the dlBNST. Such a change may be involved in the dysfunction of the mesolimbic reward system under the chronic pain condition.
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Affiliation(s)
- Ryuto Hara
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Yuta Asaoka
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Daiki Takahashi
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Hiroshi Nomura
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Taiju Amano
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Masabumi Minami
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan.
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Abstract
Targeted degradation is a promising new modality in drug discovery that makes it possible to reduce intracellular protein levels with small molecules. It is a complementary approach to the conventional protein knockdown typically used in laboratories and may offer a way to approach the currently undruggable human proteome. Recently, the first autophagy-mediated degraders, called AUTACs, were developed based on observations in a xenophagy study.
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Affiliation(s)
- Daiki Takahashi
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Hirokazu Arimoto
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
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Affiliation(s)
- Yoshitsugu Morita
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Daiki Takahashi
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Teruyuki Komatsu
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
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Yamamoto M, Takahashi D, Horita K, Setoguchi H. Speciation and subsequent secondary contact in two edaphic endemic primroses driven by Pleistocene climatic oscillation. Heredity (Edinb) 2020; 124:93-107. [PMID: 31253956 PMCID: PMC6906382 DOI: 10.1038/s41437-019-0245-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 06/11/2019] [Accepted: 06/15/2019] [Indexed: 11/09/2022] Open
Abstract
Climatic perturbation during the Pleistocene era has played a major role in plant evolutionary history by altering species distribution range. However, the relative roles of climatic and geographic factors in the distribution dynamics remain poorly understood; in particular, the edaphic endemics. In this paper, we examine the evolutionary history of two ultramafic primroses, Primula hidakana and Primula takedana. These species are ecologically and morphologically distinct with disjunct distributions on Hokkaido Island, Japan. Primula hidakana is found on various rocks in southern Hokkaido and P. takedana in serpentine areas in northern Hokkaido. We performed population genetics analyses on nuclear and chloroplast data sets and tested alternative phylogenetic models of divergence using approximate Bayesian computation (ABC) analyses. Nuclear microsatellite loci clearly distinguished the two sister taxa. In contrast, chloroplast sequence variations were shared between P. takedana and P. hidakana. ABC analyses based on nuclear data supported a secondary contact scenario involving asymmetrical gene flow from P. hidakana to P. takedana. Paleodistribution modeling also supported the divergence model, and predicted their latitudinal range shifts leading to past secondary contact. Our findings highlight the importance of the distribution dynamics during the Pleistocene climatic oscillations in the evolution of serpentine plants, and demonstrate that tight species cohesion between serpentine and nonserpentine sister taxa has been maintained despite past interspecific gene flow across soil boundaries.
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Affiliation(s)
- Masaya Yamamoto
- Hyogo University of Teacher Education, 942-1 Shimokume, Kato-city, Hyogo, 673-1494, Japan.
| | - Daiki Takahashi
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Kiyoshi Horita
- Medical Plant Garden & Northern Ecological Garden, Faculty of Pharmaceutical Science, Health Sciences University of Hokkaido, 1757 Kanazawa, Tobetsu-cho, Ishikari-gun, Hokkaido, 061-0293, Japan
| | - Hiroaki Setoguchi
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu, Sakyo-ku, Kyoto, 606-8501, Japan
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Lu RS, Chen Y, Tamaki I, Sakaguchi S, Ding YQ, Takahashi D, Li P, Isaji Y, Chen J, Qiu YX. Pre-quaternary diversification and glacial demographic expansions of Cardiocrinum (Liliaceae) in temperate forest biomes of Sino-Japanese Floristic Region. Mol Phylogenet Evol 2019; 143:106693. [PMID: 31778814 DOI: 10.1016/j.ympev.2019.106693] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [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: 07/19/2019] [Revised: 11/11/2019] [Accepted: 11/22/2019] [Indexed: 11/27/2022]
Abstract
The Sino-Japanese Floristic Region (SJFR) in East Asia is one of the most diverse temperate floras in the world. However, the relative influence of Neogene palaeogeographical changes and Quaternary climatic fluctuations as causal mechanisms on species diversification remains largely controversial, because most divergence time estimates were inferred from single-locus data and have limited geographic or taxonomic sampling. To evaluate these influences, we use SNP markers from restriction site-associated DNA sequencing (RAD-Seq) loci and expressed sequence tags-simple sequence repeat (EST-SSR) markers to investigate the levels of genetic variation, speciation and demographic history of the temperate-deciduous forest (TDF) endemic Cardiocrinum (Endlicher) Lindley (Liliaceae), a genus comprising three species in China (C. giganteum, C. cathayanum) and Japan (C. cordatum). Phylogenomic and population genomic coalescent-based analyses demonstrated that Late Neogene tectonic/climatic events triggered speciation of Cardiocrinum, and Pleistocene climatic fluctuations had limited influence on its divergence history. Population demographic inference using Approximate Bayesian Computation from EST-SSRs and palaeoclimatic niche models both indicated that all three Cardiocrinum species experienced population expansions during the transition from the LIG to the LGM. We also discussed the implications of these results on the conservation of montane TDF species in the SJFR under ongoing environmental change. Our results improve our understanding of how the constituents of montane TDF across the SJFR responded to previous periods of rapid climate and environmental change in terms of speciation and population demographic processes.
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Affiliation(s)
- Rui-Sen Lu
- Systematic & Evolutionary Botany and Biodiversity Group, MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Yang Chen
- Systematic & Evolutionary Botany and Biodiversity Group, MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Ichiro Tamaki
- Gifu Academy of Forest Science and Culture, 88 Sodai, Mino, Gifu 501-3714, Japan
| | - Shota Sakaguchi
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-nihonmatsu-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Yan-Qian Ding
- Systematic & Evolutionary Botany and Biodiversity Group, MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Daiki Takahashi
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-nihonmatsu-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Pan Li
- Systematic & Evolutionary Botany and Biodiversity Group, MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Yuji Isaji
- Division of Forest and Biomaterials Science, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
| | - Jun Chen
- Systematic & Evolutionary Botany and Biodiversity Group, MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Ying-Xiong Qiu
- Systematic & Evolutionary Botany and Biodiversity Group, MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China.
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Samukawa M, Hirano M, Saigoh K, Kawai S, Hamada Y, Takahashi D, Nakamura Y, Kusunoki S. CTA/CTG repeat sizes in the atxn8os gene afefct age at onset and phenotype in spinocerebellar ATAXIA type8. J Neurol Sci 2019. [DOI: 10.1016/j.jns.2019.10.1516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Magota K, Takahashi D, Setoguchi H. Development and characterization of EST-SSR markers for Saxifraga fortunei var. incisolobata (Saxifragaceae). Appl Plant Sci 2019; 7:e11275. [PMID: 31346507 PMCID: PMC6636618 DOI: 10.1002/aps3.11275] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Accepted: 04/05/2019] [Indexed: 06/10/2023]
Abstract
PREMISE Saxifraga fortunei (Saxifragaceae) includes several infraspecific taxa that are ecologically and morphologically distinct. To investigate the evolutionary history of phenotypic polymorphisms in this species, we developed expressed sequence tag-simple sequence repeat (EST-SSR) markers for S. fortunei. METHODS AND RESULTS We developed 26 polymorphic markers based on transcriptome data obtained from Illumina HiSeq 2000. Within three populations of S. fortunei var. incisolobata, the number of alleles ranged from four to 25, and the levels of observed and expected heterozygosity ranged from 0.200 to 0.847 and from 0.209 to 0.930, respectively. Furthermore, all 26 loci showed transferability for S. fortunei var. obtusocuneata and S. fortunei var. suwoensis, and 18 loci were also successfully amplified in S. acerifolia. CONCLUSIONS These newly developed EST-SSR markers will prove useful to infer the evolutionary history of S. fortunei var. incisolobata and its relatives in population genetic studies.
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Affiliation(s)
- Kana Magota
- Graduate School of Human and Environmental StudiesKyoto UniversityYoshida Nihonmatsu‐cho, Sakyo‐kuKyoto606–8501Japan
| | - Daiki Takahashi
- Graduate School of Human and Environmental StudiesKyoto UniversityYoshida Nihonmatsu‐cho, Sakyo‐kuKyoto606–8501Japan
| | - Hiroaki Setoguchi
- Graduate School of Human and Environmental StudiesKyoto UniversityYoshida Nihonmatsu‐cho, Sakyo‐kuKyoto606–8501Japan
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36
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Koda Y, Takahashi D, Sasaki Y, Akiyoshi K. Amphiphilic Poly[poly(ethylene glycol) methacrylate]s with OH Groups in the PEG Side Chains for Controlling Solution/Rheological Properties and toward Bioapplication. ACS Appl Bio Mater 2019; 2:1920-1930. [DOI: 10.1021/acsabm.8b00836] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuta Koda
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
- ERATO Akiyoshi Bio-Nanotransporter Project, Japan Science and Technology Agency (JST), Katsura Int’tech center, Katsura, Nishikyo-ku, Kyoto 615-8530, Japan
| | - Daiki Takahashi
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yoshihiro Sasaki
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kazunari Akiyoshi
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
- ERATO Akiyoshi Bio-Nanotransporter Project, Japan Science and Technology Agency (JST), Katsura Int’tech center, Katsura, Nishikyo-ku, Kyoto 615-8530, Japan
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Takahashi D, Teramine T, Sakaguchi S, Setoguchi H. Genetic data reveals a complex history of multiple admixture events in presently allopatric wild gingers (Asarum spp.) showing intertaxonomic clinal variation in calyx lobe length. Mol Phylogenet Evol 2019; 137:146-155. [PMID: 31075504 DOI: 10.1016/j.ympev.2019.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 05/06/2019] [Accepted: 05/06/2019] [Indexed: 10/26/2022]
Abstract
Clinal variation is a major pattern of observed phenotypic diversity and identifying underlying demographic processes is a necessary step to understand the establishment of clinal variation. The wild ginger series Sakawanum (genus Asarum) comprises four taxa, which exhibit intertaxonomic clinal variation in calyx lobe length across two continental islands isolated by a sea strait. To test alternative hypotheses of the evolutionary history and to determine the implications for the formation of clinal variation, we conducted approximate Bayesian computation (ABC) analysis and ecological niche modeling (ENM). ABC analysis indicated that the scenario assuming multiple admixture events was strongly supported. This scenario assumed two admixture events occurred between morphologically distinct taxa, likely leading to the generation of intermediate taxa. One of the admixture events was estimated to have occurred during the last glacial maximum (LGM), during which the taxa were estimated to have formed a common refugia in southern areas by ENM analysis. Although four taxa are currently distributed allopatrically on different islands and trans-oceanic dispersal appears unlikely, the formation of a land bridge and the geographic range shift to refugia would have allowed secondary contact between previously isolated taxa. This study suggests that clinal variation can be shaped by demographic history including multiple admixtures due to climatic oscillations.
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Affiliation(s)
- Daiki Takahashi
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-Nihonmatsu, Sakyo-ku, Kyoto 606-8501, Japan.
| | | | - Shota Sakaguchi
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-Nihonmatsu, Sakyo-ku, Kyoto 606-8501, Japan
| | - Hiroaki Setoguchi
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-Nihonmatsu, Sakyo-ku, Kyoto 606-8501, Japan
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38
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Komatsu S, Terashima K, Matsuo Y, Takahashi D, Suga M, Nishimura N, Lee D, Tai K, Kido M, Toyama H, Demizu Y, Tokumaru S, Okimoto T, Sasaki R, Fukumoto T. Validation of combination treatment with surgical spacer placement and subsequent particle radiotherapy for unresectable hepatocellular carcinoma. J Surg Oncol 2019; 120:214-222. [PMID: 31075183 DOI: 10.1002/jso.25495] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 04/12/2019] [Accepted: 04/20/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Shohei Komatsu
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Kazuki Terashima
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Hyogo, Japan
| | - Yoshiro Matsuo
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Hyogo, Japan
| | - Daiki Takahashi
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Hyogo, Japan
| | - Masaki Suga
- Department of Radiation Physics, Hyogo Ion Beam Medical Center, Tatsuno, Hyogo, Japan
| | - Naoko Nishimura
- Department of Radiation Technology, Hyogo Ion Beam Medical Center, Tatsuno, Hyogo, Japan
| | - Dongha Lee
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Kentaro Tai
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Masahiro Kido
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Hirochika Toyama
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Yusuke Demizu
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Hyogo, Japan.,Department of Radiation Oncology, Hyogo Ion Beam Medical Center Kobe Proton Center, Kobe, Hyogo, Japan
| | - Sunao Tokumaru
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Hyogo, Japan
| | - Tomoaki Okimoto
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Hyogo, Japan
| | - Ryohei Sasaki
- Division of Radiation Oncology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Takumi Fukumoto
- Department of Surgery, Division of Hepato-Biliary-Pancreatic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
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Aita C, Mizoguchi Y, Yamamoto M, SeguchI Y, Yatsuga C, Nishimura T, Sugimoto Y, Takahashi D, Nishihara R, Ueno T, Nakayama M, Kuroki T, Nabeta H, Imamura Y, Monji A. Oxytocin levels and sex differences in autism spectrum disorder with severe intellectual disabilities. Psychiatry Res 2019; 273:67-74. [PMID: 30640053 DOI: 10.1016/j.psychres.2018.12.139] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 12/25/2018] [Accepted: 12/26/2018] [Indexed: 01/20/2023]
Abstract
There were few reports of oxytocin (OXT) concentrations of autism spectrum disorder (ASD) patients with severe intellectual disabilities. We measured serum OXT concentrations in 79 hospitalized patients with severe intellectual disabilities (16-60 years old, 50 males and 29 females, 54 ASD patients) and investigated the associations between serum OXT concentration, symptom scores, sex differences, and autism spectrum disorder. There were no significant effects of diagnosis, severity of intellectual disabilities, and total score of the Japanese version of the Aberrant Behavior Checklist (ABC-J), the Childhood Autism Rating Scale-Tokyo Version (CARS-TV), and the Japanese version of the Repetitive Behavior Scale-Revised (RBS-R). However, there were sex differences in the correlations between OXT concentrations and subscale scores in the ASD group. The male ASD group (n = 39) showed negative correlations between RBS-R Self-injurious and Sameness subscale scores and serum OXT concentrations. In the female ASD group(n = 15), CARS-TV Nonverbal communication subscale scores and RBS-R Compulsive subscale scores were seen to positively correlate with serum OXT concentrations. These findings suggest that OXT functions differ in males and females with severe intellectual disabilities and that OXT partly affects autism and related to some of the repetitive behaviors and nonverbal communication, in ASD patients with severe intellectual disabilities.
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Affiliation(s)
- Chie Aita
- National Hospital Organization Hizen Psychiatric Center, 160 Mitsu Yoshinogari, Kanzaki, Saga 842-0192, Japan.
| | - Yoshito Mizoguchi
- Department of Psychiatry, Faculty of Medicine, Saga University, Saga, Japan
| | - Miwako Yamamoto
- National Hospital Organization Hizen Psychiatric Center, 160 Mitsu Yoshinogari, Kanzaki, Saga 842-0192, Japan
| | - Yasuhisa SeguchI
- National Hospital Organization Hizen Psychiatric Center, 160 Mitsu Yoshinogari, Kanzaki, Saga 842-0192, Japan
| | - Chiho Yatsuga
- National Hospital Organization Hizen Psychiatric Center, 160 Mitsu Yoshinogari, Kanzaki, Saga 842-0192, Japan
| | - Taisuke Nishimura
- National Hospital Organization Hizen Psychiatric Center, 160 Mitsu Yoshinogari, Kanzaki, Saga 842-0192, Japan
| | - Yoshiki Sugimoto
- National Hospital Organization Hizen Psychiatric Center, 160 Mitsu Yoshinogari, Kanzaki, Saga 842-0192, Japan
| | - Daiki Takahashi
- National Hospital Organization Hizen Psychiatric Center, 160 Mitsu Yoshinogari, Kanzaki, Saga 842-0192, Japan
| | - Reiko Nishihara
- National Hospital Organization Hizen Psychiatric Center, 160 Mitsu Yoshinogari, Kanzaki, Saga 842-0192, Japan
| | - Takefumi Ueno
- National Hospital Organization Hizen Psychiatric Center, 160 Mitsu Yoshinogari, Kanzaki, Saga 842-0192, Japan
| | | | - Toshihide Kuroki
- Department of Human Sciences, Faculty of Human-Environment Studies, Kyushu University, Fukuoka, Japan
| | | | - Yoshiomi Imamura
- Department of Psychiatry, Faculty of Medicine, Saga University, Saga, Japan
| | - Akira Monji
- Department of Psychiatry, Faculty of Medicine, Saga University, Saga, Japan
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Matsumoto H, Teshima T, Iizuka Y, Sakusabe A, Takahashi D, Amimoto A, Koyama H. Evaluation of the efficacy of the subcutaneous low recombinant feline interferon-omega administration protocol for feline chronic gingivitis-stomatitis in feline calicivirus-positive cats. Res Vet Sci 2018; 121:53-58. [DOI: 10.1016/j.rvsc.2018.10.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 08/07/2018] [Accepted: 10/02/2018] [Indexed: 10/28/2022]
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Yamauchi N, Takahashi D, Sugimura YK, Kato F, Amano T, Minami M. Activation of the neural pathway from the dorsolateral bed nucleus of the stria terminalis to the central amygdala induces anxiety-like behaviors. Eur J Neurosci 2018; 48:3052-3061. [PMID: 30240530 DOI: 10.1111/ejn.14165] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 09/02/2018] [Accepted: 09/17/2018] [Indexed: 12/24/2022]
Abstract
The bed nucleus of the stria terminalis (BNST) and the central amygdala (CeA) comprise a forebrain unit that has been described as the "extended amygdala". These two nuclei send dense projections to each other and have been implicated in the regulation of negative emotional states, including anxiety and fear. The present study employed an optogenetic technique to examine whether stimulation of CeA-projecting dorsolateral BNST (dlBNST) neuron terminals would influence anxiety-like behaviors in male Sprague-Dawley rats. Photostimulation of CeA-projecting dlBNST neuron terminals produced anxiogenic effects in an elevated plus maze test. This finding is inconsistent with previous reports showing that optogenetic stimulation of BNST neurons projecting to the lateral hypothalamus (LH) and ventral tegmental area (VTA) produces anxiolytic rather than anxiogenic effects. To address this issue, electrophysiological analyses were conducted to characterize dlBNST neurons projecting to the CeA, LH, and VTA. dlBNST neurons can be electrophysiologically classified into three distinct cell types (types I-III) according to their responses to depolarizing and hyperpolarizing current injections. Whole-cell patch-clamp recordings revealed that more than 60% of the CeA-projecting dlBNST neurons were type II, whereas approximately 80% of the LH- and VTA-projecting dlBNST neurons were type III. These electrophysiological results will help elucidate the mechanisms underlying the heterogeneity of BNST neurons during the regulation of anxiety-like behaviors.
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Affiliation(s)
- Naoki Yamauchi
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Daiki Takahashi
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Yae K Sugimura
- Department of Neuroscience, The Jikei University School of Medicine, Tokyo, Japan
| | - Fusao Kato
- Department of Neuroscience, The Jikei University School of Medicine, Tokyo, Japan
| | - Taiju Amano
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
| | - Masabumi Minami
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
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Kasuga I, Maezawa H, Gamo S, Yokoe Y, Yanagihara Y, Yoshino H, Sato Y, Imazeki E, Sakano Y, Takahashi D, Sato M, Wakabayashi K, Otsubo O. P1.14-15 Prevalence of Mediastinal Tumors Using Low-Dose Spiral Computed Tomography in Healthy Population. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.917] [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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Takahashi D, Suzuki H, Komori T. A clinical study of 103 dental implants in oral cancer patients after jaw resection. Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology 2018. [DOI: 10.1016/j.ajoms.2017.12.006] [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] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Takahashi D, Teramine T, Sakaguchi S, Setoguchi H. Relative contributions of neutral and non-neutral processes to clinal variation in calyx lobe length in the series Sakawanum (Asarum: Aristolochiaceae). Ann Bot 2018; 121:37-46. [PMID: 29186343 PMCID: PMC5786219 DOI: 10.1093/aob/mcx122] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 09/08/2017] [Indexed: 05/30/2023]
Abstract
Background and Aims Clines, the gradual variation in measurable traits along a geographical axis, play a major role in evolution and can contribute to our understanding of the relative roles of selective and neutral process in trait variation. Using genetic and morphological analyses, the relative contributions of neutral and non-neutral processes were explored to infer the evolutionary history of species of the series Sakawanum (genus Asarum), which shows significant clinal variation in calyx lobe length. Methods A total of 27 populations covering the natural geographical distribution of the series Sakawanum were sampled. Six nuclear microsatellite markers were used to investigate genetic structure and genetic diversity. The lengths of calyx lobes of multiple populations were measured to quantify their geographical and taxonomic differentiation. To detect the potential impact of selective pressure, morphological differentiation was compared with genetic differentiation (QCT-FST comparison). Key Results Average calyx lobe length of A. minamitanianum was 124.11 mm, while that of A. costatum was 13.80 mm. Though gradually changing along the geographical axis within series, calyx lobe lengths were significantly differentiated among the taxa. Genetic differentiation between taxa was low (FST = 0.099), but a significant geographical structure along the morphological cline was detected. Except for one taxon pair, pairwise QCT values were significantly higher than the neutral genetic measures of FST and G'ST. Conclusions Divergent selection may have driven the calyx lobe length variation in series Sakawanum taxa, although the underlying mechanism is still not clear. The low genetic differentiation indicates recent divergence and/or gene flows between geographically close taxa. These neutral processes would also affect the clinal variation in calyx lobe lengths. Overall, this study implies the roles of population history and divergent selection in shaping the current cline of a flower trait in the series Sakawanum.
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Affiliation(s)
- Daiki Takahashi
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-Nihonmatsu, Sakyo-ku, Kyoto, Japan
| | | | - Shota Sakaguchi
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-Nihonmatsu, Sakyo-ku, Kyoto, Japan
| | - Hiroaki Setoguchi
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-Nihonmatsu, Sakyo-ku, Kyoto, Japan
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Takahashi D, Suzuki H, Kakei Y, Yamakoshi K, Minami Y, Komori T, Nishita M. Expression of Ror2 Associated with Fibrosis of the Submandibular Gland. Cell Struct Funct 2017; 42:159-167. [PMID: 29070775 DOI: 10.1247/csf.17019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
The submandibular gland (SMG) is one of the major salivary glands that play important roles for variety of physiological functions, such as digestion of foods, prevention of infection, and lubrication of the mouth. Dysfunction of the SMG, often associated with a salivary inflammation, adversely influences a person's quality of life. However, the mechanism underlying inflammation-driven dysfunction of the SMG is largely unknown. Here, we used a mouse model in which the main excretory duct of the SMG is ligated unilaterally to induce inflammation of the gland and examined the expression of Wnt5a, Ror1 and Ror2 genes, encoding Wnt5a ligand and its cognate receptors, which have been implicated in tissue damage or inflammatory responses in variety of tissues. We show that expression levels of Ror1, Ror2, and Wnt5a are increased in the ligated SMG undergoing interstitial fibrosis, which is accompanied by robust expression of fibrosis-associated genes, such as TGF-β1, TNF-α, IL-1β, and MMP-2. Increased immunostaining signal of Ror2 was detected in the fibrotic tissues with abundant accumulation of fibroblasts and collagen fibers in the ligated SMG, suggesting that Ror2-mediated signaling might be activated in response to tissue damage and associated with progression of fibrosis in the SMG.Key words: submandibular gland, Ror2, Wnt5a, fibrosis, inflammation.
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Affiliation(s)
- Daiki Takahashi
- Division of Cell Physiology, Department of Physiology and Cell Biology, Kobe University, Graduate School of Medicine.,Department of Oral and Maxillofacial Surgery, Kobe University, Graduate School of Medicine
| | - Hiroaki Suzuki
- Department of Oral and Maxillofacial Surgery, Kobe University, Graduate School of Medicine
| | - Yasumasa Kakei
- Department of Oral and Maxillofacial Surgery, Kobe University, Graduate School of Medicine
| | - Kimi Yamakoshi
- Department of Mechanism of Aging, Research Institute, National Center for Geriatrics and Gerontology
| | - Yasuhiro Minami
- Division of Cell Physiology, Department of Physiology and Cell Biology, Kobe University, Graduate School of Medicine
| | - Takahide Komori
- Department of Oral and Maxillofacial Surgery, Kobe University, Graduate School of Medicine
| | - Michiru Nishita
- Division of Cell Physiology, Department of Physiology and Cell Biology, Kobe University, Graduate School of Medicine
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Abstract
Nitric oxide (NO) raises the intracellular 3',5'-cyclic guanosine monophosphate (cGMP) level through the activation of soluble guanylate cyclase and, in the presence of reactive oxygen species (ROS), reacts with biomolecules to produce nitrated cGMP derivatives. 8-Nitro-cGMP was the first endogenous cGMP derivative discovered in mammalian cells (2007) and was later found in plant cells. Among the six nitrogen atoms in this molecule, the one in the nitro group (NO2) comes from NO. This chapter asserts that this newly found cGMP is undoubtedly one of the major physiological cNMPs. Multiple studies suggest that its intracellular abundance might exceed that of unmodified cGMP. The characteristic chemical feature of 8-nitro-cGMP is its ability to modify proteinous cysteine residues via a stable sulfide bond. In this posttranslational modification, the nitro group is detached from the guanine base. This modification, termed "protein S-guanylation," is known to regulate the physiological functions of several important proteins. Furthermore, 8-nitro-cGMP participates in the regulation of autophagy. For example, in antibacterial autophagy (xenophagy), S-guanylation accumulates around invading bacterial cells and functions as a "tag" for subsequent clearance of the organism via ubiquitin modifications. This finding suggests the existence of a system for recognizing the cGMP structure on proteins. Autophagy induction by 8-nitro-cGMP is mechanistically distinct from the well-described starvation-induced autophagy and is independent of the action of mTOR, the master regulator of canonical autophagy.
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Affiliation(s)
- Hirokazu Arimoto
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan.
| | - Daiki Takahashi
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
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47
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Goda T, Kobayashi J, Watanabe A, Takahashi D, Hazama T. Thrombolysis in patients with mild ischemic strokes. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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48
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True C, Takahashi D, Kirigiti M, Lindsley SR, Moctezuma C, Arik A, Smith MS, Kievit P, Grove KL. Arcuate nucleus neuropeptide coexpression and connections to gonadotrophin-releasing hormone neurones in the female rhesus macaque. J Neuroendocrinol 2017; 29:10.1111/jne.12491. [PMID: 28561903 PMCID: PMC5523807 DOI: 10.1111/jne.12491] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 05/26/2017] [Accepted: 05/26/2017] [Indexed: 12/11/2022]
Abstract
The underlying hypothalamic neurocircuitry by which metabolism and feeding regulates reproductive function has been well-studied in the rodent; however, recent data have demonstrated significant neuroanatomical differences in the human brain. The present study had three objectives, centred on arcuate nucleus neuropeptides regulating feeding and reproduction: (i) to characterise coexpression patterns in the female nonhuman primate; (ii) to establish whether these neuronal populations make potential contacts with gonadotophin-releasing hormone (GnRH) neurones; and (iii) to determine whether these contacts differ between the low and high GnRH-releasing states of pre-puberty and adulthood, respectively. Female nonhuman primates have several coexpression patterns of hypothalamic neuropeptides that differ from those reported in rodents. Cocaine- and amphetamine-regulated transcript (CART) is not coexpressed with pro-opiomelanocortin but instead with neuropeptide Y (NPY). CART is also expressed in a subpopulation of kisspeptin cells in the nonhuman primate, similar to observations in humans but diverging from findings in rodents. Very few GnRH-expressing neurones received close appositions from double-labelled kisspeptin/CART fibres; however, both single-labelled kisspeptin and CART fibres were in frequent apposition with GnRH neurones, with no differences between prepubertal and adult animals. NPY/agouti-related peptide (AgRP) coexpressing fibres contacted significantly more GnRH neurones in prepubertal animals than adults, consistent with increased NPY and AgRP mRNA observed in prepubertal animals. The findings of the present study detail significant differences in arcuate nucleus neuropeptide coexpression in the monkey compared to the rodent and are consistent with the hypothesis that arcuate nucleus NPY/AgRP neurones play an inhibitory role in controlling GnRH neuronal regulation in the prepubertal primate.
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Affiliation(s)
- C True
- Division of Diabetes, Obesity and Metabolism, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, USA
| | - D Takahashi
- Division of Diabetes, Obesity and Metabolism, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, USA
| | - M Kirigiti
- Division of Diabetes, Obesity and Metabolism, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, USA
| | - S R Lindsley
- Division of Diabetes, Obesity and Metabolism, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, USA
| | - C Moctezuma
- Division of Diabetes, Obesity and Metabolism, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, USA
| | - A Arik
- Division of Diabetes, Obesity and Metabolism, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, USA
| | - M S Smith
- Division of Diabetes, Obesity and Metabolism, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, USA
| | - P Kievit
- Division of Diabetes, Obesity and Metabolism, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, USA
| | - K L Grove
- Division of Diabetes, Obesity and Metabolism, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, USA
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Sakaguchi S, Ueno S, Tsumura Y, Setoguchi H, Ito M, Hattori C, Nozoe S, Takahashi D, Nakamasu R, Sakagami T, Lannuzel G, Fogliani B, Wulff AS, L’Huillier L, Isagi Y. Application of a simplified method of chloroplast enrichment to small amounts of tissue for chloroplast genome sequencing. Appl Plant Sci 2017; 5:apps.1700002. [PMID: 28529832 PMCID: PMC5435405 DOI: 10.3732/apps.1700002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 04/09/2017] [Indexed: 05/30/2023]
Abstract
PREMISE OF THE STUDY High-throughput sequencing of genomic DNA can recover complete chloroplast genome sequences, but the sequence data are usually dominated by sequences from nuclear/mitochondrial genomes. To overcome this deficiency, a simple enrichment method for chloroplast DNA from small amounts of plant tissue was tested for eight plant species including a gymnosperm and various angiosperms. METHODS Chloroplasts were enriched using a high-salt isolation buffer without any step gradient procedures, and enriched chloroplast DNA was sequenced by multiplexed high-throughput sequencing. RESULTS Using this simple method, significant enrichment of chloroplast DNA-derived reads was attained, allowing deep sequencing of chloroplast genomes. As an example, the chloroplast genome of the conifer Callitris sulcata was assembled, from which polymorphic microsatellite loci were isolated successfully. DISCUSSION This chloroplast enrichment method from small amounts of plant tissue will be particularly useful for studies that use sequencers with relatively small throughput and that cannot use large amounts of tissue (e.g., for endangered species).
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Affiliation(s)
- Shota Sakaguchi
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-nihonmatsu-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Saneyoshi Ueno
- Tree Genetics Laboratory, Department of Forest Genetics, Forestry and Forest Products Research Institute, 1 Matsunosato, Tsukuba, Ibaraki 305-8687, Japan
| | - Yoshihiko Tsumura
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki 3058572, Japan
| | - Hiroaki Setoguchi
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-nihonmatsu-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Motomi Ito
- Graduate School of Arts and Sciences, University of Tokyo, Tokyo 153-8902, Japan
| | - Chie Hattori
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-nihonmatsu-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Shogo Nozoe
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-nihonmatsu-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Daiki Takahashi
- Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-nihonmatsu-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Riku Nakamasu
- Faculty of Integrated Human Studies, Kyoto University, Yoshida-nihonmatsu-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Taishi Sakagami
- Faculty of Integrated Human Studies, Kyoto University, Yoshida-nihonmatsu-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Guillaume Lannuzel
- Agronomic Institute of New Caledonia (IAC), Diversités biologique et fonctionnelle des écosystèmes terrestres, BP 73, Port Laguerre, Païta 98890, New Caledonia
| | - Bruno Fogliani
- Agronomic Institute of New Caledonia (IAC), Diversités biologique et fonctionnelle des écosystèmes terrestres, BP 73, Port Laguerre, Païta 98890, New Caledonia
| | - Adrien S. Wulff
- Agronomic Institute of New Caledonia (IAC), Diversités biologique et fonctionnelle des écosystèmes terrestres, BP 73, Port Laguerre, Païta 98890, New Caledonia
- SoREco-NC, 57 Route de l’Anse Vata, 98800 Nouméa, New Caledonia
| | - Laurent L’Huillier
- Agronomic Institute of New Caledonia (IAC), Diversités biologique et fonctionnelle des écosystèmes terrestres, BP 73, Port Laguerre, Païta 98890, New Caledonia
| | - Yuji Isagi
- Division of Forest and Biomaterials Science, Graduate School of Agriculture, Kyoto University, Kyoto 6068502, Japan
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50
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Kaneko T, Kaneda K, Ohno A, Takahashi D, Hara T, Amano T, Ide S, Yoshioka M, Minami M. Activation of adenylate cyclase-cyclic AMP-protein kinase A signaling by corticotropin-releasing factor within the dorsolateral bed nucleus of the stria terminalis is involved in pain-induced aversion. Eur J Neurosci 2016; 44:2914-2924. [PMID: 27690274 DOI: 10.1111/ejn.13419] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2016] [Revised: 09/22/2016] [Accepted: 09/26/2016] [Indexed: 01/23/2023]
Abstract
Pain is a complex experience involving sensory and affective components. Although the neuronal mechanisms underlying the sensory component of pain have been extensively studied, those underlying its affective component have yet to be elucidated. Recently, we reported that corticotrophin-releasing factor (CRF)-induced depolarization in type II neurons within the dorsolateral bed nucleus of the stria terminalis (dlBNST) is critical for pain-induced aversive responses in rats. However, the intracellular signaling underlying the excitatory effects of CRF and the contribution of such signaling to the induction of pain-induced aversion remain unclear. In the present study, we addressed these issues by conducting whole-cell patch-clamp recordings in rat brain slices and by undertaking behavioral pharmacological analyses. Intracellular perfusion of protein kinase A (PKA) inhibitor Rp-cyclic adenosine monophosphorothioate (Rp-cAMPS) or KT5720 suppressed the excitatory effects of CRF in type II dlBNST neurons, and bath application of Rp-cAMPS also suppressed it. In addition, bath application of forskolin, an adenylate cyclase (AC) activator, mimicked the effects of CRF, and pretreatment with forskolin diminished the excitatory effects of CRF. Furthermore, a conditioned place aversion (CPA) test showed that co-administration of Rp-cAMPS with CRF into the dlBNST suppressed CRF-induced CPA. Intra-dlBNST injection of Rp-cAMPS also suppressed pain-induced CPA. These results suggest that CRF increases excitability of type II dlBNST neurons through activation of the AC-cAMP-PKA pathway, thereby causing pain-induced aversive responses. The present findings shed light on the neuronal mechanisms underlying the negative affective component of pain and may provide therapeutic targets for treating intractable pain accompanied by psychological factors.
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Affiliation(s)
- Tomoyuki Kaneko
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Katsuyuki Kaneda
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Atsushi Ohno
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Daiki Takahashi
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Taiki Hara
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Taiju Amano
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Soichiro Ide
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Mitsuhiro Yoshioka
- Department of Neuropharmacology, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Masabumi Minami
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
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