1
|
Moriyama T, Tokunaga M, Hori R, Itoh H, Hachisuka A, Ochi M, Matsushima Y, Saeki S. Probable Respiratory Sarcopenia Decreases Activities of Daily Living in Older Patients Hospitalized with Respiratory Diseases: A Cross-sectional Study. Prog Rehabil Med 2024; 9:20240014. [PMID: 38617808 PMCID: PMC11009035 DOI: 10.2490/prm.20240014] [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: 11/28/2023] [Accepted: 03/29/2024] [Indexed: 04/16/2024] Open
Abstract
Objectives Respiratory sarcopenia is characterized by low respiratory muscle mass and respiratory muscle strength, but its impact on activities of daily living (ADL) remains unknown. We aimed to investigate the association between respiratory sarcopenia and decreased ADL. Methods This retrospective cross-sectional study included older inpatients (≥65 years old) with respiratory diseases who underwent rehabilitation. Because the evaluation of respiratory muscle mass is challenging, probable respiratory sarcopenia was defined according to low appendicular skeletal muscle index (<7 kg/m2 for men, <5.7 kg/m2 for women) and peak expiratory flow rate (<4.4 L/s for men, <3.21 L/s for women). ADL was assessed on the first day of rehabilitation using the baseline Barthel Index (BI). Results Of 111 inpatients (median age 75 years; 57 women), 13 (11.7%) had probable respiratory sarcopenia. Forty-five patients (40.5%) had sarcopenia and 12 of these had probable respiratory sarcopenia. Pulmonary functions (Forced Vital Capacity and expiratory volume in 1 s) were significantly lower in patients with probable respiratory sarcopenia than those without. Spearman's rank coefficient analysis showed probable respiratory sarcopenia did not significantly correlate with age, phase angle, Charlson Comorbidity Index (CCI), or hemoglobin (Hb). Multivariate linear regression analysis with baseline BI revealed probable respiratory sarcopenia (β -0.279 and P=0.004) was the significant factor after adjusting for age, sex, body mass index, chronic obstructive pulmonary disease, CCI, and Hb. Conclusions Probable respiratory sarcopenia was independently associated with decreased ADL in patients aged 65 years and older who were hospitalized with respiratory diseases.
Collapse
Affiliation(s)
- Toshiyuki Moriyama
- Department of Rehabilitation Medicine, School of Medicine,
University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Mizuki Tokunaga
- Department of Rehabilitation Medicine, School of Medicine,
University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Ryoko Hori
- Department of Rehabilitation Medicine, School of Medicine,
University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Hideaki Itoh
- Department of Rehabilitation Medicine, School of Medicine,
University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Akiko Hachisuka
- Department of Rehabilitation Medicine, School of Medicine,
University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Mitsuhiro Ochi
- Department of Rehabilitation Medicine, School of Medicine,
University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Yasuyuki Matsushima
- Department of Rehabilitation Medicine, School of Medicine,
University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Satoru Saeki
- Department of Rehabilitation Medicine, School of Medicine,
University of Occupational and Environmental Health, Kitakyushu, Japan
| |
Collapse
|
2
|
Narita Y, Tamura A, Hatakeyama S, Uemura S, Miura A, Haga A, Tsuji N, Fujie N, Izumi Y, Sugawara T, Otaka M, Okamoto K, Lu P, Okuda S, Suzuki M, Nagata K, Shimizu H, Itoh H. The components of the AhR-molecular chaperone complex differ depending on whether the ligands are toxic or non-toxic. FEBS Lett 2024. [PMID: 38605276 DOI: 10.1002/1873-3468.14871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 02/14/2024] [Accepted: 03/15/2024] [Indexed: 04/13/2024]
Abstract
The aryl hydrocarbon receptor (AhR) forms a complex with the HSP90-XAP2-p23 molecular chaperone when the cells are exposed to toxic compounds. Recently, 1,4-dihydroxy-2-naphthoic acid (DHNA) was reported to be an AhR ligand. Here, we investigated the components of the molecular chaperone complex when DHNA binds to AhR. Proteins eluted from the 3-Methylcolanthrene-affinity column were AhR-HSP90-XAP2-p23 complex. The AhR-molecular chaperone complex did not contain p23 in the eluents from the DHNA-affinity column. In 3-MC-treated cells, AhR formed a complex with HSP90-XAP2-p23 and nuclear translocation occurred within 30 min, while in DHNA-treated cells, AhR formed a complex with AhR-HSP90-XAP2, and translocation was slow from 60 min. Thus, the AhR activation mechanism may differ when DHNA is the ligand compared to toxic ligands.
Collapse
Affiliation(s)
- Yukihiko Narita
- Department of Neurosurgery, Akita University Graduate School of Medicine, Japan
| | - Arisa Tamura
- Department of Life Science, Graduate School of Engineering Science, Akita University, Japan
| | - Shiori Hatakeyama
- Department of Life Science, Graduate School of Engineering Science, Akita University, Japan
| | - Seiya Uemura
- Department of Life Science, Graduate School of Engineering Science, Akita University, Japan
| | - Atsuko Miura
- Department of Neurosurgery, Akita University Graduate School of Medicine, Japan
- Department of Life Science, Akita Cerebrospinal and Cardiovascular Center, Japan
| | - Asami Haga
- Department of Life Science, Graduate School of Engineering Science, Akita University, Japan
| | - Noriko Tsuji
- Department of Life Science, Graduate School of Engineering Science, Akita University, Japan
| | - Nozomi Fujie
- Department of Life Science, Graduate School of Engineering Science, Akita University, Japan
| | - Yukina Izumi
- Department of Life Science, Graduate School of Engineering Science, Akita University, Japan
| | - Taku Sugawara
- Department of Life Science, Akita Cerebrospinal and Cardiovascular Center, Japan
| | - Michiro Otaka
- Department of Gastroenterology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Ken Okamoto
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Japan
| | - Peng Lu
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Japan
| | - Suguru Okuda
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Japan
| | - Michio Suzuki
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Japan
| | - Koji Nagata
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Japan
| | - Hiroaki Shimizu
- Department of Neurosurgery, Akita University Graduate School of Medicine, Japan
| | - Hideaki Itoh
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Japan
| |
Collapse
|
3
|
Zhang C, Lu P, Wei S, Hu C, Miyoshi M, Okamoto K, Itoh H, Okuda S, Suzuki M, Kawakami H, Nagata K. Refolding, Crystallization, and Crystal Structure Analysis of a Scavenger Receptor Cysteine-Rich Domain of Human Salivary Agglutinin Expressed in Escherichia coli. Protein J 2024; 43:283-297. [PMID: 38265733 PMCID: PMC11058800 DOI: 10.1007/s10930-023-10173-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/24/2023] [Indexed: 01/25/2024]
Abstract
Scavenger receptors are a protein superfamily that typically consists of one or more repeats of the scavenger receptor cysteine-rich structural domain (SRCRD), which is an ancient and highly conserved protein module. The expression and purification of eukaryotic proteins containing multiple disulfide bonds has always been challenging. The expression systems that are commonly used to express SRCRD proteins mainly consist of eukaryotic protein expression systems. Herein, we established a high-level expression strategy of a Type B SRCRD unit from human salivary agglutinin using the Escherichia coli expression system, followed by a refolding and purification process. The untagged recombinant SRCRD was expressed in E. coli using the pET-32a vector, which was followed by a refolding process using the GSH/GSSG redox system. The SRCRD expressed in E. coli SHuffle T7 showed better solubility after refolding than that expressed in E. coli BL21(DE3), suggesting the importance of the disulfide bond content prior to refolding. The quality of the refolded protein was finally assessed using crystallization and crystal structure analysis. As proteins refolded from inclusion bodies exhibit a high crystal quality and reproducibility, this method is considered a reliable strategy for SRCRD protein expression and purification. To further confirm the structural integrity of the refolded SRCRD protein, the purified protein was subjected to crystallization using sitting-drop vapor diffusion method. The obtained crystals of SRCRD diffracted X-rays to a resolution of 1.47 Å. The solved crystal structure appeared to be highly conserved, with four disulfide bonds appropriately formed. The surface charge distribution of homologous SRCRD proteins indicates that the negatively charged region at the surface is associated with their calcium-dependent ligand recognition. These results suggest that a high-quality SRCRD protein expressed by E. coli SHuffle T7 can be successfully folded and purified, providing new options for the expression of members of the scavenger receptor superfamily.
Collapse
Affiliation(s)
- Changyu Zhang
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Peng Lu
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Sibo Wei
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Chaoyue Hu
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Mitsuko Miyoshi
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Ken Okamoto
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Hideaki Itoh
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Suguru Okuda
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Michio Suzuki
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Hiroshi Kawakami
- Department of Food Science and Nutrition, Faculty of Home Economics, Kyoritsu Women's University, 2-2-1 Hitotsubashi, Chiyoda-ku, Tokyo, 101-8437, Japan
| | - Koji Nagata
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan.
- Agricultural Bioinformatics Research Unit, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan.
- Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan.
| |
Collapse
|
4
|
Horikirizono H, Nakaichi M, Itoh H, Itamoto K, Nemoto Y, Sunahara H, Tani K. Intraoperative hypertensive crisis in a dog with functional paraganglioma of the gall bladder. J Small Anim Pract 2024; 65:144-148. [PMID: 37559209 DOI: 10.1111/jsap.13665] [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: 04/01/2023] [Revised: 06/11/2023] [Accepted: 07/12/2023] [Indexed: 08/11/2023]
Abstract
A 15-year-old spayed female mongrel presented with anorexia and an abdominal mass. The mass originated from the gall bladder and was surgically resected along with divisionectomy of the central hepatic division. Paroxysmal hypertension and tachycardia were noted during manipulation of the mass. Following resection, arterial blood pressure decreased significantly. Histopathological analysis confirmed a diagnosis of neuroendocrine neoplasm. Immunohistochemical staining for synaptophysin and chromogranin A yielded diffuse and strong positive results, while gastrin was positive in only 10% of the cells. The preoperative elevated concentrations of catecholamine in the urinalysis showed a marked decrease after surgery. Based on these findings, the tumour was diagnosed as a functional paraganglioma of the gall bladder. The patient has undergone regular thoracic radiographs and ultrasound examinations and, until 431 days after surgery, has shown no signs of metastases or recurrences. Based on our literature search, we report the first case of functional paraganglioma of the gall bladder in a dog.
Collapse
Affiliation(s)
- H Horikirizono
- Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1, Yoshida, Yamaguchi, 753-8515, Japan
- Animal Medical Centre, Faculty of Applied Biological Sciences, Gifu University, 1-1, Yanagido, Gifu, 501-1193, Japan
| | - M Nakaichi
- Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1, Yoshida, Yamaguchi, 753-8515, Japan
| | - H Itoh
- Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1, Yoshida, Yamaguchi, 753-8515, Japan
| | - K Itamoto
- Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1, Yoshida, Yamaguchi, 753-8515, Japan
| | - Y Nemoto
- Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1, Yoshida, Yamaguchi, 753-8515, Japan
| | - H Sunahara
- Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1, Yoshida, Yamaguchi, 753-8515, Japan
| | - K Tani
- Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1, Yoshida, Yamaguchi, 753-8515, Japan
| |
Collapse
|
5
|
Lu P, Jiang J, Liu C, Okuda S, Itoh H, Okamoto K, Suzuki M, Nagata K. Molecular mechanism of Fe 3+ binding inhibition to Vibrio metschnikovii ferric ion-binding protein, FbpA, by rosmarinic acid and its hydrolysate, danshensu. Protein Sci 2024; 33:e4881. [PMID: 38143427 PMCID: PMC10804667 DOI: 10.1002/pro.4881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 12/12/2023] [Accepted: 12/20/2023] [Indexed: 12/26/2023]
Abstract
Global warming has increased the growth of pathogenic Vibrio bacteria, which can cause foodborne illnesses and death. Vibrio bacteria require iron for growth and survival. They utilize a ferric ion-binding protein (FbpA) to bind and transport Fe3+ into the cell. FbpA from Vibrio metschnikovii (Vm) is a potential target for inhibiting its growth. Rosmarinic acid (RA) can block the binding of VmFbpA to Fe3+ ; however, the molecular mechanism of Fe3+ binding and RA inhibition to VmFbpA is unclear. In this study, we used x-ray crystallography to determine the Fe3+ -binding mode of VmFbpA and the mechanism of RA inhibition. The structures revealed that in the Fe3+ bound form, Fe3+ was coordinated to VmFbpA by two Tyr residues, two HCO3 - ions, and two water molecules in a six-coordinated geometry. In contrast, in the inhibitor bound form, RA was initially bound to VmFbpA following gel filtration purification, but it was hydrolyzed to danshensu (DSS), which occupied the binding site as shown in an electron density map and reverse phase chromatography (RPC) analysis. Both RA and DSS exhibited a stronger binding affinity to VmFbpA, higher Fe3+ reduction capacity, and more potent bacteriostatic effect on V. metschnikovii compared with caffeic acid (CA), another hydrolysis product of RA. These results provide insight into the mechanism of iron acquisition by V. metschnikovii and inhibition by RA and DSS. Our findings offer clues on the development of effective strategies to prevent Vibrio infections.
Collapse
Affiliation(s)
- Peng Lu
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life ScienceThe University of TokyoTokyoJapan
| | - Jinyan Jiang
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life ScienceThe University of TokyoTokyoJapan
| | - Chang Liu
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life ScienceThe University of TokyoTokyoJapan
| | - Suguru Okuda
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life ScienceThe University of TokyoTokyoJapan
| | - Hideaki Itoh
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life ScienceThe University of TokyoTokyoJapan
| | - Ken Okamoto
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life ScienceThe University of TokyoTokyoJapan
| | - Michio Suzuki
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life ScienceThe University of TokyoTokyoJapan
| | - Koji Nagata
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life ScienceThe University of TokyoTokyoJapan
- Agricultural Bioinformatics Research Unit, Graduate School of Agricultural and Life ScienceThe University of TokyoTokyoJapan
- Research Center for Food Safety, Graduate School of Agricultural and Life ScienceThe University of TokyoTokyoJapan
| |
Collapse
|
6
|
Shimozuru Y, Matsushima Y, Ochi M, Itoh H, Hachisuka A, Saeki S. Survey of patients with stroke in the Kitakyushu Area, Japan: a 12-year retrospective analysis of the critical pathway. J Stroke Cerebrovasc Dis 2024; 33:107525. [PMID: 38171185 DOI: 10.1016/j.jstrokecerebrovasdis.2023.107525] [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: 05/21/2023] [Revised: 11/29/2023] [Accepted: 12/01/2023] [Indexed: 01/05/2024] Open
Abstract
OBJECTIVES We aimed to clarify the incidence, clinical profile, outcome, and activities of daily living of patients with stroke using the Kitakyushu clinical pathway database and to investigate the characteristics of patients with stroke in the Kitakyushu medical area in Japan. MATERIALS AND METHODS The clinical data of patients with stroke registered in the Kitakyushu database between April 1, 2009 and December 31, 2021 were retrospectively examined. The National Institutes of Health Stroke Scale was used to classify stroke severity. A descriptive analysis of basic variables, including age, stroke type, length of hospital stay, and activities of daily living, according to stroke severity was conducted. RESULTS There were 7,487 acute care hospital patients and 5,441 rehabilitation hospital patients. Compared with patients in similar cities in Japan, patients in the Kitakyushu area tended to be older at the time of stroke onset with a higher proportion of cases of hemorrhagic stroke. Length of hospital stay in both acute and rehabilitation hospitals increased with stroke severity. The Functional Independence Measure gain was highest in patients with moderate disability. CONCLUSIONS Compared with patients in similar cities in Japan, in the Kitakyushu area, patients with stroke were older and the proportion of patients with hemorrhagic stroke was higher. Stroke rehabilitation therapy is effective for patients with moderately severe stroke.
Collapse
Affiliation(s)
- Yukihiro Shimozuru
- Graduate School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan.
| | - Yasuyuki Matsushima
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan
| | - Mitsuhiro Ochi
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan
| | - Hideaki Itoh
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan
| | - Akiko Hachisuka
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan
| | - Satoru Saeki
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan
| |
Collapse
|
7
|
Moriyama T, Hachisuka A, Matsusihima Y, Tokunaga M, Hori R, Tashima H, Itoh H, Ochi M, Saeki S. Impact of Presarcopenic Dysphagia on 1-Year Mortality After Videofluoroscopic Swallowing Study in Patients with Cancer. Dysphagia 2024:10.1007/s00455-023-10652-4. [PMID: 38193919 DOI: 10.1007/s00455-023-10652-4] [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: 07/03/2023] [Accepted: 11/26/2023] [Indexed: 01/10/2024]
Abstract
Sarcopenic dysphagia is the term for swallowing difficulty associated with loss of mass, strength, and physical performance, which leads to increased pharyngeal residues. Unlike sarcopenia, presarcopenia is characterized by low muscle mass without decreased muscle strength or physical performance and can develop into dysphagia due to low skeletal muscle mass. This retrospective study investigated the impact of presarcopenic dysphagia (PSD) on 1-year mortality in patients with cancer and dysphagia who underwent a videofluoroscopic swallowing study (VFSS). An operational definition of PSD based on presarcopenia and pharyngeal residues was adopted. The psoas muscle mass index (cm2/height [m2]), calculated by the psoas muscle area at the third lumber vertebra via abdominal computed tomography (CT) and related to height, was used to assess presarcopenia with cutoff values of 4.62 for men and 2.66 for women. Pharyngeal residues were assessed using a VFSS to evaluate dysphagia. Patients' medical charts were analyzed to investigate 1-year mortality after a VFSS. Out of 111 consecutive patients with cancer, 53 (47.7%) were defined as having PSD. In a forward-stepwise Cox proportional regression analysis, PSD (HR 2.599; 95% CI 1.158-5.834; p = 0.021) was significantly associated with 1-year mortality after a VFSS, even after adjusting for the factors of operation, Functional Oral Intake Scale (FOIS) scores at discharge, and modified Barthel Index (BI) scores at discharge. PSD, defined as CT-based presarcopenia and pharyngeal residues observed during a VFSS, is associated with increased 1-year mortality in patients with cancer and dysphagia.
Collapse
Affiliation(s)
- Toshiyuki Moriyama
- Department of Rehabilitation Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanisihi-Ku, Kitakyushu, Fukuoka, 807, Japan.
| | - Akiko Hachisuka
- Department of Rehabilitation Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanisihi-Ku, Kitakyushu, Fukuoka, 807, Japan
| | - Yasuyuki Matsusihima
- Department of Rehabilitation Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanisihi-Ku, Kitakyushu, Fukuoka, 807, Japan
| | - Mizuki Tokunaga
- Department of Rehabilitation Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanisihi-Ku, Kitakyushu, Fukuoka, 807, Japan
| | - Ryoko Hori
- Department of Rehabilitation Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanisihi-Ku, Kitakyushu, Fukuoka, 807, Japan
| | - Hiroyuki Tashima
- Department of Rehabilitation Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanisihi-Ku, Kitakyushu, Fukuoka, 807, Japan
| | - Hideaki Itoh
- Department of Rehabilitation Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanisihi-Ku, Kitakyushu, Fukuoka, 807, Japan
| | - Mitsuhiro Ochi
- Department of Rehabilitation Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanisihi-Ku, Kitakyushu, Fukuoka, 807, Japan
| | - Satoru Saeki
- Department of Rehabilitation Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanisihi-Ku, Kitakyushu, Fukuoka, 807, Japan
| |
Collapse
|
8
|
Lu P, Zhou J, Wei S, Takada K, Masutani H, Okuda S, Okamoto K, Suzuki M, Kitamura T, Masujin K, Kokuho T, Itoh H, Nagata K. Comparative genomic and transcriptomic analyses of African swine fever virus strains. Comput Struct Biotechnol J 2023; 21:4322-4335. [PMID: 37711186 PMCID: PMC10497913 DOI: 10.1016/j.csbj.2023.08.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 08/27/2023] [Accepted: 08/27/2023] [Indexed: 09/16/2023] Open
Abstract
African swine fever (ASF) is the most devastating disease caused by the African swine fever virus (ASFV), impacting the pig industry worldwide and threatening food security and biodiversity. Although two vaccines have been approved in Vietnam to combat ASFV, the complexity of the virus, with its numerous open reading frames (ORFs), necessitates a more diverse vaccine strategy. Therefore, we focused on identifying and investigating the potential vaccine targets for developing a broad-spectrum defense against the virus. This study collected the genomic and/or transcriptomic data of different ASFV strains, specifically from in vitro studies, focusing on comparisons between genotypes I, II, and X, from the National Center for Biotechnology Information (NCBI) database. The comprehensive analysis of the genomic and transcriptomic differences between high- and low-virulence strains revealed six early genes, 13 late genes, and six short genes as potentially essential ORFs associated with high-virulence. In addition, many other ORFs (e.g., 14 multigene family members) are worth investigating. The results of this study provided candidate ORFs for developing ASF vaccines and therapies.
Collapse
Affiliation(s)
- Peng Lu
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Science, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Jiaqiao Zhou
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Science, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Sibo Wei
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Science, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Konosuke Takada
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Science, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Hayato Masutani
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Science, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Suguru Okuda
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Science, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Ken Okamoto
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Science, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Michio Suzuki
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Science, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Tomoya Kitamura
- African Swine Fever Unit, National Institute of Animal Health, National A griculture and Food Research Organization (NARO), 6-20-1 Josuihoncho, Kodaira, Tokyo, Japan
| | - Kentaro Masujin
- African Swine Fever Unit, National Institute of Animal Health, National A griculture and Food Research Organization (NARO), 6-20-1 Josuihoncho, Kodaira, Tokyo, Japan
| | - Takehiro Kokuho
- African Swine Fever Unit, National Institute of Animal Health, National A griculture and Food Research Organization (NARO), 6-20-1 Josuihoncho, Kodaira, Tokyo, Japan
| | - Hideaki Itoh
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Science, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Koji Nagata
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Science, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
- Agricultural Bioinformatics Research Unit, Graduate School of Agricultural and Life Science, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| |
Collapse
|
9
|
Moriyama T, Tokunaga M, Ochi M, Matushima Y, Hori R, Tashima H, Onishi A, Inoue S, Hachisuka A, Itoh H, Saeki S. Negative impact of computed tomography-based low skeletal muscle mass on swallowing recovery in patients with post-stroke dysphagia. Clin Neurol Neurosurg 2023; 229:107760. [PMID: 37156041 DOI: 10.1016/j.clineuro.2023.107760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/28/2023] [Accepted: 05/03/2023] [Indexed: 05/10/2023]
Abstract
OBJECTIVES Dysphagia due to stroke has a high prevalence, and evaluating the swallowing function of dysphagia and promoting oral intake is essential in patients with stroke. The psoas muscle mass index(cm2/height2(m2)), calculated by the psoas muscle area at the L3 level via abdominal computed tomography (CT), can predict the development of dysphagia. However, knowledge about the impact of CT-based skeletal muscle mass on swallowing recovery, remains unknown. Therefore, we investigated whether CT-based low skeletal muscle mass impacted swallowing recovery. METHODS A retrospective cohort study was conducted on patients with post-stroke dysphagia who underwent acute treatments along with a videofluoroscopic swallowing study(VFSS). Swallowing recovery was identified as the improvement of the Functional Oral Intake Scale (FOIS) from the time of VFSS to discharge(observational period: ObPd). The psoas muscle mass index's cut-off values for low skeletal muscle mass were 3.74 cm2/m2 and 2.29 cm2/m2 for men and women respectively. RESULTS There were 53 subjects (36 male, median age 73.9). The median during the ObPd was 26 days, and the median days from onset to admission and admission to VFSS were 0 and 18, respectively. Sixteen patients had low skeletal muscle mass. The median improvement of FOIS during the ObPd was 2, and the median length of hospital stay was 51 days. In the stepwise multiple linear regression analysis for the improvement of FOIS during the ObPd, low skeletal muscle mass (β - 0.245; 95% confidence interval - 2.248 to - 0.127; p = 0.029) was a significant factor, even adjusted for serum albumin at admission, disturbance of consciousness at VFSS, FOIS at VFSS, and aspiration during VFSS. CONCLUSION CT-based low skeletal muscle mass negatively impacted swallowing recovery during the ObPd in patients with post-stroke dysphagia.
Collapse
Affiliation(s)
- Toshiyuki Moriyama
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health, School of Medicine, Japan.
| | - Mizuki Tokunaga
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| | - Mituhiro Ochi
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| | - Yasuyuki Matushima
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| | - Ryoko Hori
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| | - Hiroyuki Tashima
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| | - Atuto Onishi
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| | - Sumire Inoue
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| | - Akiko Hachisuka
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| | - Hideaki Itoh
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| | - Satoru Saeki
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health, School of Medicine, Japan
| |
Collapse
|
10
|
Sugimoto N, Matsugaki R, Kuhara S, Imamura H, Itoh H, Araki M, Fushimi K, Matsuda S, Saeki S. The Relationship Between Preoperative Frailty Risk as Assessed by the Hospital Frailty Risk Score and the Outcome at Discharge in Coronary Artery Bypass Grafting (CABG) Patients: A Retrospective Observational Study Using the Diagnosis Procedure Combination Database. J UOEH 2023; 45:209-216. [PMID: 38057109 DOI: 10.7888/juoeh.45.209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2023]
Abstract
The relationship between the Hospital Frailty Risk Score (HFRS)-based frailty risk and outcomes after coronary artery bypass grafting (CABG) is yet unclear. The objective of this study was to investigate the relationship between preoperative frailty risk as assessed by the HFRS and postoperative outcomes in patients undergoing CABG. This observational study used the diagnosis procedure combination (DPC) system in Japan (2014-2017). In total, 35,015 adults aged ≥ 65 years and diagnosed with angina pectoris and acute myocardial infarction who had undergone CABG were enrolled. We investigated the association between the HFRS-based frailty risk and the home discharge rate, as well as the prevalence of complications. Multilevel logistic regression analysis revealed that having an HFRS ≥ 5 was a determinant of lower home discharge rate (odds ratio [OR] 0.60, 95% confidence interval [CI] 0.49-0.74, P <0.01), aspiration pneumonia (OR 2.25, 95%CI 1.27-3.96, P <0.01) and disuse syndrome (OR 1.90, 95%CI 1.23-2.94, P <0.01). Preoperative stratification of frailty risk using HFRS may help in predicting postoperative progress and in planning postoperative rehabilitation.
Collapse
Affiliation(s)
- Nozomu Sugimoto
- Department of Rehabilitation, University Hospital of Occupational and Environmental Health, Japan
| | - Ryutaro Matsugaki
- Department of Preventive Medicine and Community Health, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Satoshi Kuhara
- Department of Rehabilitation, University Hospital of Occupational and Environmental Health, Japan
| | - Hanaka Imamura
- Department of Preventive Medicine and Community Health, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Hideaki Itoh
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health, Japan
| | - Masaru Araki
- Department of Cardiology, Tagawa Municipal Hospital, Japan
| | - Kiyohide Fushimi
- Department of Health Policy and Informatics, Tokyo Medical and Dental University Graduate School, Japan
| | - Shinya Matsuda
- Department of Preventive Medicine and Community Health, School of Medicine, University of Occupational and Environmental Health, Japan
| | - Satoru Saeki
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health, Japan
| |
Collapse
|
11
|
Lu P, Takiguchi S, Honda Y, Lu Y, Mitsui T, Kato S, Kodera R, Furihata K, Zhang M, Okamoto K, Itoh H, Suzuki M, Kono H, Nagata K. NMR and HPLC profiling of bee pollen products from different countries. Food Chemistry: Molecular Sciences 2022; 5:100119. [PMID: 35845152 PMCID: PMC9278072 DOI: 10.1016/j.fochms.2022.100119] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 07/01/2022] [Accepted: 07/03/2022] [Indexed: 11/30/2022]
Abstract
Analysis using NMR and HPLC can be used to identify countries of origin but not producing years of bee pollens. Flavanoids in bee pollens from different countries were characterized using HPLC. Bee pollens from Spain and Australia were high in sucrose and adenosine. Bee pollens from China were high in trigonelline, uridine, and cytidine. Only the bee pollens from China contained acetic acid.
Bee pollen, a beehive product collected from flowers by honeybees, contains over 250 biological substances, and has attracted increasing attention as a functional food. However, commercial bee pollen products are often multifloral, and samples from different countries vary significantly. There is no universal standard for objective quality assessment of bee pollen based on its chemical composition. Here, we report metabolomic analysis of 11 bee pollen samples from Spain, China, and Australia for quality control. The characteristics of the samples depend on the sucrose, nucleoside, amino acid, and flavanol concentrations. Bee pollen samples from Spain and Australia had higher sucrose and adenosine concentrations, whereas those from China had higher trigonelline, uridine, and cytidine concentrations. Interestingly, acetic acid was only detected in samples from China. These components can be used to identify the country of origin. The obtained profiles of the samples will contribute to universal standard development for bee pollen products.
Collapse
|
12
|
Kuhara S, Matsugaki R, Imamura H, Itoh H, Oginosawa Y, Araki M, Fushimi K, Matsuda S, Saeki S. A survey of the implementation rate of cardiac rehabilitation for patients with heart disease undergoing device implantation in Japan. J Arrhythm 2022; 38:1049-1055. [DOI: 10.1002/joa3.12792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/26/2022] [Accepted: 10/15/2022] [Indexed: 11/07/2022] Open
Affiliation(s)
- Satoshi Kuhara
- Rehabilitation Center of University Hospital University of Occupational and Environmental Health Kitakyushu Japan
| | - Ryutaro Matsugaki
- Department of Preventive Medicine and Community Health University of Occupational and Environmental Health Kitakyushu Japan
| | - Hanaka Imamura
- Department of Preventive Medicine and Community Health University of Occupational and Environmental Health Kitakyushu Japan
| | - Hideaki Itoh
- Department of Rehabilitation Medicine University of Occupational and Environmental Health Kitakyushu Japan
| | - Yasushi Oginosawa
- Department of Health Policy and Informatics Tokyo Medical and Dental University Graduate School Tokyo Japan
| | - Masaru Araki
- Department of Health Policy and Informatics Tokyo Medical and Dental University Graduate School Tokyo Japan
| | - Kiyohide Fushimi
- Second Department of Internal Medicine University of Occupational and Environmental Health Kitakyushu Japan
| | - Shinya Matsuda
- Department of Preventive Medicine and Community Health University of Occupational and Environmental Health Kitakyushu Japan
| | - Satoru Saeki
- Department of Rehabilitation Medicine University of Occupational and Environmental Health Kitakyushu Japan
| |
Collapse
|
13
|
Itoh H, Igari K, Tani K, Sunahara H, Nemoto Y, Nakaichi M, Iseri T, Horikirizono H, Itamoto K. Clinical relationship between histopathological necrotic/partial necrotic findings and disease condition of gallbladder mucoceles in dogs. Pol J Vet Sci 2022; 25:223-229. [PMID: 35861958 DOI: 10.24425/pjvs.2022.141806] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Gallbladder mucocele (GM) is a common extrahepatic biliary disease recognized in dogs and is defined as the expansion and extension of the gallbladder by an accumulation of semi-solid bile or bile acid. Histopathological diagnosis of necrotizing cholecystitis and transmural coagulative necrosis of the gallbladder wall shows poor prognosis. Conversely, histopathological diagnosis with partial necrotic findings is often achieved. We hypothesized that histopathological partial necrosis of the gallbladder wall is the primary lesion of necrotic cholecystitis or transmural ischemic necrosis. Therefore, we investigated the relationship between histopathological necrosis/ partial necrosis findings and their clinical conditions. We retrospectively analyzed 55 dogs diagnosed with GM that had undergone cholecystectomy at the Yamaguchi University Animal Medical Center. The group with histopathological necrosis/partial necrosis of the gallbladder wall showed elevated levels of preoperative white blood cells, alanine transaminase, alkaline phosphatase, γ-glutamyltransferase, total bilirubin, and C-reactive protein compared to the non-necrotic group. Partial necrosis of the gallbladder wall may affect the progression of the disease and hematological abnormalities. Additionally, all death cases until 2 weeks were included in the histopathological necrosis/partial necrosis group. In this study, we found that poor prognosis factors were associated with partial necrosis of the gallbladder wall. Furthermore, these cases of partial necrosis showed elevated levels of blood test parameters. These results suggest that necrosis of the gallbladder wall is associated with poor prognosis and poor pathophysiological conditions.
Collapse
Affiliation(s)
- H Itoh
- Department of Small Animal Clinical Science, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi City, Yamaguchi 753-8515, Japan
| | - K Igari
- Pet Clinic Hallelujah, 2544-1 Nakabaru, Kasuya, Kasuya-gun, Fukuoka 811-2304, Japan
| | - K Tani
- Department of Veterinary Surgery, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi City, Yamaguchi 753-8515, Japan
| | - H Sunahara
- Department of Veterinary Surgery, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi City, Yamaguchi 753-8515, Japan
| | - Y Nemoto
- Department of Veterinary Surgery, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi City, Yamaguchi 753-8515, Japan
| | - M Nakaichi
- Laboratory of Veterinary Radiology Yamaguchi University, 1677-1 Yoshida, Yamaguchi City, Yamaguchi, 753-8511, Japan
| | - T Iseri
- Laboratory of Veterinary Radiology Yamaguchi University, 1677-1 Yoshida, Yamaguchi City, Yamaguchi, 753-8511, Japan
| | - H Horikirizono
- Laboratory of Veterinary Radiology Yamaguchi University, 1677-1 Yoshida, Yamaguchi City, Yamaguchi, 753-8511, Japan
| | - K Itamoto
- Department of Small Animal Clinical Science, Joint Faculty of Veterinary Medicine, Yamaguchi University, 1677-1 Yoshida, Yamaguchi City, Yamaguchi 753-8515, Japan
| |
Collapse
|
14
|
Itoh H, Nakano H, Tokushima R, Fukumoto H, Wakuya H. A Partially Observable Markov-Decision-Process-Based Blackboard Architecture for Cognitive Agents in Partially Observable Environments. IEEE Trans Cogn Dev Syst 2022. [DOI: 10.1109/tcds.2020.3034428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
15
|
Teramatsu H, Yamato H, Jiang Y, Kako H, Kuhara S, Ohya R, Itoh H, Kuroda K, Matsushima Y, Saeki S. Pre-operative Physical Performance Is Associated With Early Return to Work in Peri-operative Lung Cancer Patients. J UOEH 2022; 44:341-351. [PMID: 36464308 DOI: 10.7888/juoeh.44.341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Little is known about the factors related to return to work (RTW) in patients with peri-operative lung cancer (LC). This study aimed to investigate whether pre-operative physical performance is associated with early RTW in patients with peri-operative LC. A total of 59 patients who wished to resume work after lung resection surgery were included and were divided into three groups: early RTW (within 14 days after discharge), delayed RTW (within 15-90 days), and non-RTW (failure of RTW within 90 days). The early RTW group had significantly lower scores on the modified Medical Research Council dyspnea scale (mMRC) and significantly higher scores on the Euro Quality of Life 5-Dimension 3-Level (EQ-5D-3L) than the non-RTW group. Multivariate logistic regression analysis showed that EQ-5D-3L scores were significantly associated with early RTW, and mMRC scores and knee extensor strength tended to be associated with early RTW. Better pre-operative quality of life, mild dyspnea, and greater lower limb muscle strength tended to be associated with early RTW in patients with peri-operative LC.
Collapse
Affiliation(s)
- Hiroaki Teramatsu
- Department of Rehabilitation, University Hospital of Occupational and Environmental Health, Japan. 1-1, Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8556, Japan
| | - Hiroshi Yamato
- Department of Health Development, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan. 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
| | - Ying Jiang
- Department of Health Development, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan. 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
| | - Hiroaki Kako
- Department of Rehabilitation, University Hospital of Occupational and Environmental Health, Japan. 1-1, Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8556, Japan
| | - Satoshi Kuhara
- Department of Rehabilitation, University Hospital of Occupational and Environmental Health, Japan. 1-1, Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8556, Japan
| | - Ryosuke Ohya
- Department of Rehabilitation, University Hospital of Occupational and Environmental Health, Japan. 1-1, Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8556, Japan
| | - Hideaki Itoh
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health, Japan. 1-1, Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
| | - Koji Kuroda
- Second Department of Surgery, University of Occupational and Environmental Health, Japan. 1-1, Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
| | - Yasuyuki Matsushima
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health, Japan. 1-1, Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
| | - Satoru Saeki
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health, Japan. 1-1, Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
| |
Collapse
|
16
|
Lu P, Sui M, Zhang M, Wang M, Kamiya T, Okamoto K, Itoh H, Okuda S, Suzuki M, Asakura T, Fujiwara T, Nagata K. Rosmarinic Acid and Sodium Citrate Have a Synergistic Bacteriostatic Effect against Vibrio Species by Inhibiting Iron Uptake. Int J Mol Sci 2021; 22:13010. [PMID: 34884815 PMCID: PMC8657459 DOI: 10.3390/ijms222313010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 11/26/2021] [Accepted: 11/29/2021] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND New strategies are needed to combat multidrug-resistant bacteria. The restriction of iron uptake by bacteria is a promising way to inhibit their growth. We aimed to suppress the growth of Vibrio bacterial species by inhibiting their ferric ion-binding protein (FbpA) using food components. METHODS Twenty spices were selected for the screening of FbpA inhibitors. The candidate was applied to antibacterial tests, and the mechanism was further studied. RESULTS An active compound, rosmarinic acid (RA), was screened out. RA binds competitively and more tightly than Fe3+ to VmFbpA, the FbpA from V. metschnikovii, with apparent KD values of 8 μM vs. 17 μM. Moreover, RA can inhibit the growth of V. metschnikovii to one-third of the control at 1000 μM. Interestingly, sodium citrate (SC) enhances the growth inhibition effect of RA, although SC only does not inhibit the growth. The combination of RA/SC completely inhibits the growth of not only V. metschnikovii at 100/100 μM but also the vibriosis-causative pathogens V. vulnificus and V. parahaemolyticus, at 100/100 and 1000/100 μM, respectively. However, RA/SC does not affect the growth of Escherichia coli. CONCLUSIONS RA/SC is a potential bacteriostatic agent against Vibrio species while causing little damage to indigenous gastrointestinal bacteria.
Collapse
Affiliation(s)
- Peng Lu
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan; (M.S.); (M.Z.); (M.W.); (T.K.); (K.O.); (H.I.); (S.O.); (M.S.); (T.A.); (T.F.)
| | - Miaomiao Sui
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan; (M.S.); (M.Z.); (M.W.); (T.K.); (K.O.); (H.I.); (S.O.); (M.S.); (T.A.); (T.F.)
| | - Mimin Zhang
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan; (M.S.); (M.Z.); (M.W.); (T.K.); (K.O.); (H.I.); (S.O.); (M.S.); (T.A.); (T.F.)
| | - Mengyao Wang
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan; (M.S.); (M.Z.); (M.W.); (T.K.); (K.O.); (H.I.); (S.O.); (M.S.); (T.A.); (T.F.)
| | - Takehiro Kamiya
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan; (M.S.); (M.Z.); (M.W.); (T.K.); (K.O.); (H.I.); (S.O.); (M.S.); (T.A.); (T.F.)
| | - Ken Okamoto
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan; (M.S.); (M.Z.); (M.W.); (T.K.); (K.O.); (H.I.); (S.O.); (M.S.); (T.A.); (T.F.)
| | - Hideaki Itoh
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan; (M.S.); (M.Z.); (M.W.); (T.K.); (K.O.); (H.I.); (S.O.); (M.S.); (T.A.); (T.F.)
| | - Suguru Okuda
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan; (M.S.); (M.Z.); (M.W.); (T.K.); (K.O.); (H.I.); (S.O.); (M.S.); (T.A.); (T.F.)
| | - Michio Suzuki
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan; (M.S.); (M.Z.); (M.W.); (T.K.); (K.O.); (H.I.); (S.O.); (M.S.); (T.A.); (T.F.)
| | - Tomiko Asakura
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan; (M.S.); (M.Z.); (M.W.); (T.K.); (K.O.); (H.I.); (S.O.); (M.S.); (T.A.); (T.F.)
| | - Toru Fujiwara
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan; (M.S.); (M.Z.); (M.W.); (T.K.); (K.O.); (H.I.); (S.O.); (M.S.); (T.A.); (T.F.)
| | - Koji Nagata
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan; (M.S.); (M.Z.); (M.W.); (T.K.); (K.O.); (H.I.); (S.O.); (M.S.); (T.A.); (T.F.)
- Agricultural Bioinformatics Research Unit, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| |
Collapse
|
17
|
Seki H, Kaneko H, Matsuoka S, Itoh H, Yano Y, Morita K, Kiriyama H, Kamon T, Fujiu K, Michihaka N, Jo T, Takeda N, Morita H, Yasunaga H, Komuro I. Association between blood pressure classification using the 2017 American College of Cardiology/American Heart Association blood pressure guideline and hypertensive retinopathy. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2273] [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
Purpose
We aimed to explore the association of blood pressure (BP) classification using the 2017 American College of Cardiology/ American Heart Association Guideline and the prevalence of hypertensive retinopathy using a nationwide epidemiological database.
Methods
This study is a retrospective observational cross-sectional analysis using the health claims database of the JMDC between 2005 and 2020. We analyzed 280,599 participants who did not take anti-hypertensive medications. Each participant was categorized as having normal BP (systolic BP [SBP] <120 mm Hg and diastolic BP [DBP] <80 mm Hg; n=159,524); elevated BP (SBP 120–129 mm Hg and DBP <80 mm Hg; n=35,603); stage 1 hypertension (SBP 130–139 mm Hg or DBP 80–89 mm Hg; n=54,795); or stage 2 hypertension (SBP ≥140 mm Hg or DBP ≥90 mm Hg; n=30,677). Retinal photography at health check-up was classified as normal, grade 1, grade 2, grade 3, or grade 4 according to the Keith-Wagener-Barker system.
Results
Median (interquartile range) age was 46 (40–53) years, and 50.4% were men. Hypertensive retinopathy which was defined as ≥ Keith-Wagener-Barker system grade 1, was observed in 16,836 participants (6.0%). Multivariable logistic regression analysis showed that, compared with normal BP, elevated BP (odds ratio [OR] 1.30, 95% confidence interval [CI] 1.23–1.38), stage 1 hypertension (OR 1.71, 95% CI 1.64–1.79), and stage 2 hypertension (OR 4.10, 95% CI 3.93–4.28) were associated with higher prevalence of hypertensive retinopathy. Even among 92,121 participants without obesity, high waist circumference, diabetes mellitus, dyslipidemia, cigarette smoking, and alcohol drinking, multivariable logistic regression analysis showed that, compared with normal BP, elevated BP (odds ratio 1.34, 95% CI 1.19–1.51), stage 1 hypertension (OR 1.79, 95% CI 1.61–1.98), and stage 2 hypertension (OR 4.42, 95% CI 4.00–4.92) were associated with higher prevalence of hypertensive retinopathy. The association between BP category and hypertensive retinopathy was observed in all subgroups stratified by age or sex.
Conclusion
Our investigation showed that the prevalence of hypertensive retinopathy increased with the blood pressure category, suggesting that atherosclerotic change could start even in elevated BP and stage 1 hypertension.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): This work was supported by grants from the Ministry of Health, Labour and Welfare, Japan (19AA2007 and H30-Policy-Designated-004) and the Ministry of Education, Culture, Sports, Science and Technology, Japan (17H04141).
Collapse
Affiliation(s)
- H Seki
- The University of Tokyo, Department of Cardiovascular Medicine, Tokyo, Japan
| | - H Kaneko
- The University of Tokyo, Department of Cardiovascular Medicine, Tokyo, Japan
| | - S Matsuoka
- New Tokyo Hospital, Department of cardiovascular Medicine, Chiba, Japan
| | - H Itoh
- The University of Tokyo, Department of Cardiovascular Medicine, Tokyo, Japan
| | - Y Yano
- Yokohama City University Hospital, Department of cardiovascular Medicine, Yokohama, Japan
| | - K Morita
- The University of Tokyo, Department of Clinical Epidemiology and Health Economics, School of Public Health, Tokyo, Japan
| | - H Kiriyama
- The University of Tokyo, Department of Cardiovascular Medicine, Tokyo, Japan
| | - T Kamon
- The University of Tokyo, Department of Cardiovascular Medicine, Tokyo, Japan
| | - K Fujiu
- The University of Tokyo, Department of Cardiovascular Medicine, Tokyo, Japan
| | - N Michihaka
- The University of Tokyo, Department of Cardiovascular Medicine, Tokyo, Japan
| | - T Jo
- The University of Tokyo, Department of Cardiovascular Medicine, Tokyo, Japan
| | - N Takeda
- The University of Tokyo, Department of Cardiovascular Medicine, Tokyo, Japan
| | - H Morita
- The University of Tokyo, Department of Cardiovascular Medicine, Tokyo, Japan
| | - H Yasunaga
- Tsukuba University, Department of Health Services Research, Faculty of Medicine, Tsukuba, Japan
| | - I Komuro
- The University of Tokyo, Department of Cardiovascular Medicine, Tokyo, Japan
| |
Collapse
|
18
|
Hosaka Y, Itoh K, Matsutani S, Kawate S, Miura A, Mizoura Y, Yamada S, Konno H, Grave E, Nagata K, Wakui H, Itoh H. Fermented food Tempeh induces interleukin 12 and enhances macrophage phagocytosis. J Food Biochem 2021; 45:e13958. [PMID: 34611901 DOI: 10.1111/jfbc.13958] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 09/08/2021] [Accepted: 09/20/2021] [Indexed: 01/20/2023]
Abstract
It is known that lactic acid bacteria induce the IL-12. The IL-12 activates NK cells and promotes the production of IFN-γ. The IFN-γ activates macrophages resulting in enhanced phagocytosis and bactericidal activity. We have been investigating fermented foods that activate the immune function. In this study, we investigated the IL-12 inducibility of fermented foods using the specific antibody. Fermented soybean foods such as Tempeh and Natto are attracting attention in terms of nutrition, functionality, and food problems. In this study, Tempeh induced 1,080 µg/ml of IL-12, and IFN-γ associated with the induction of IL-12 was also induced at 682 µg/ml. This was more than twice the induced intensity of PBS. On the contrary, Natto hardly induced IL-12 and IFN-γ. Tempeh also accelerated phagocytosis of the macrophage THP-1 cells. In this study, it was found that the fermented soybean-derived food, Tempeh, has a function of activating the immune function. This is the first report that Tempeh activates innate immunity. PRACTICAL APPLICATIONS: Tempeh, a fermented soybean food induced the IL-12 and IFN-γ production and the increase of macrophage phagocytosis in this study suggested a new function to enhance immunity. Tempeh is also expected to be effective in preventing lifestyle diseases. Fermented soybean products of Tempeh was considered to be a very useful health food for the problems of modern society such as maintaining health by eating, improving immunity, and ingesting vegetable protein due to diversifying food.
Collapse
Affiliation(s)
- Yoshihito Hosaka
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita, Japan.,Akita Konno Co., Ltd., Akita, Japan
| | - Kei Itoh
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita, Japan
| | - Shun Matsutani
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita, Japan
| | - Shinya Kawate
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita, Japan
| | - Atsuko Miura
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita, Japan
| | - Yukaze Mizoura
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita, Japan
| | - Sayumi Yamada
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita, Japan
| | | | - Ewa Grave
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita, Japan
| | - Koji Nagata
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Hideki Wakui
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita, Japan
| | - Hideaki Itoh
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| |
Collapse
|
19
|
Uemura S, Nakajima Y, Yoshida Y, Furuya M, Matsutani S, Kawate S, Ikeda SI, Tsuji N, Grave E, Wakui H, Itoh H. Biochemical properties of human full-length aryl hydrocarbon receptor (AhR). J Biochem 2021; 168:285-294. [PMID: 32289173 DOI: 10.1093/jb/mvaa047] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 02/29/2020] [Accepted: 04/02/2020] [Indexed: 11/13/2022] Open
Abstract
The aryl hydrocarbon receptor (AhR) is a very unstable protein. AhR binds to the molecular chaperone complex (HSP90-p23-XAP2) to maintain a stable structure in the cytoplasm. After binding to ligands, such as dioxin, AhR translocates from the cytoplasm to the nucleus with a molecular chaperone complex. The protein forms a heterodimer with Arnt after nuclear transfer, functions as a transcription factor by binding to a xenobiotic responsive element (XRE), and induces the cytochrome P450 1A1 (CYP1A1). Because of the unstable protein, expression of the full-length AhR in the E. coli expression system is very difficult. Many studies investigated AhR using AhR domains in vitro. We expressed and purified the human full-length AhR in E. coli expression system. Furthermore, specific antibodies were prepared. Purified full-length AhR could bind to ligand. In the presence of ligand, α-helix and random coil of AhR increased and β-sheet decreased on CD spectrum. Full-length AhR could bind to HSP90, XAP2 and p23 in the presence or absence of ligand. We now show the biochemical properties of full-length AhR.
Collapse
Affiliation(s)
- Seiya Uemura
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita 010-8502, Japan
| | - Yasutomo Nakajima
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita 010-8502, Japan
| | - Yuhki Yoshida
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita 010-8502, Japan
| | - Moeko Furuya
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita 010-8502, Japan
| | - Shun Matsutani
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita 010-8502, Japan
| | - Shinya Kawate
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita 010-8502, Japan
| | - Shun-Ichi Ikeda
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita 010-8502, Japan
| | - Noriko Tsuji
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita 010-8502, Japan
| | - Ewa Grave
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita 010-8502, Japan
| | - Hideki Wakui
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita 010-8502, Japan
| | - Hideaki Itoh
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita 010-8502, Japan
| |
Collapse
|
20
|
Horikoshi Y, Yaguchi C, Matsumoto M, Isomura N, Uchida T, Itoh H. Clinicopathological characteristics of deciduitis in the placenta after miscarriage and preterm delivery. Placenta 2021. [DOI: 10.1016/j.placenta.2020.09.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
21
|
Kiriyama H, Kaneko H, Kamon T, Itoh H, Jo T, Fujiu K, Daimon M, Morita H, Yasunaga H, Komuro I. Association between surgical treatment and in-hospital mortality in patients with infective endocarditis stratified by NYHA classification: a nationwide retrospective study in Japan. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Heart failure (HF) is one of the major complications of infective endocarditis (IE). The ESC guideline described that surgical treatment should be performed for the patients with IE complicated with HF. However, decision making of surgical indication in real-world clinical setting is not easy for patients with IE concomitant with HF due to complicated conditions, and the clinical benefit of surgical intervention for IE and HF is unclear.
Purpose
We sought to uncover the association between surgical treatment and in-hospital mortality among the patients admitted for community-acquired IE respectively according to the severity of HF symptoms (NYHA class I to IV).
Methods
We studied 3,403 patients diagnosed as IE (mean age 65.9 years, 61.6% males) with records of baseline NYHA classification (I to IV) who survived for more than 2 days, using the Diagnosis Procedure Combination database, a nationwide inpatient database in Japan. Patients were classified into four groups: 919 patients (27.0%) in NYHA I, 1,007 patients (29.6%) in NYHA II, 767 patients (22.5%) in NYHA III, and 710 patients (20.9%) in NYHA IV. A multivariable logistic regression model adjusted for age, gender, Barthel Index, Charlson Comorbidity Index, and usage of inotropic therapy at admission was performed to evaluate the association between the surgical treatment and in-hospital mortality.
Results
Patients with higher NYHA classification were significantly older and were more likely to be female than those with lower NYHA classification. At admission, patients with higher NYHA classification had lower baseline activities and higher comorbidities, and also had more complications including stroke, shock and disseminated intravascular coagulation than those with lower NYHA classification. In-hospital mortality was seen in 406 patients (11.9%) in the entire cohort. The mortality rate significantly increased with the NYHA class (NYHA I, 3.6%; NYHA II, 8.4%; NYHA III, 11.9%; NYHA IV, 27.9%: p<0.001). According to the multivariable logistic regression analysis, surgical treatment was independently associated with lower in-hospital mortality (Odds ratio 0.395, 95% Confidence Interval 0.297–0.526; p<0.001). A fragmentated analysis in each NYHA classification showed that the survival benefit of surgical intervention was pronounced in patients with higher NYHA class (Figure). The limitation of our study was including the potential unmeasured confounders, which lead to overestimate the relationship between the surgical treatment and in-hospital mortality even after excluding the critically ill patients who died within 2 days and adjusting for the measured confounders.
Conclusion
Surgical treatment was associated with lower in-hospital mortality among the patients with IE complicated with HF, particularly among those with more advanced HF status. Our study implies that surgical treatment might be beneficial for the patients with advanced HF.
Funding Acknowledgement
Type of funding source: None
Collapse
Affiliation(s)
| | - H Kaneko
- University of Tokyo, Tokyo, Japan
| | - T Kamon
- University of Tokyo, Tokyo, Japan
| | - H Itoh
- University of Tokyo, Tokyo, Japan
| | - T Jo
- University of Tokyo, Tokyo, Japan
| | - K Fujiu
- University of Tokyo, Tokyo, Japan
| | - M Daimon
- University of Tokyo, Tokyo, Japan
| | - H Morita
- University of Tokyo, Tokyo, Japan
| | | | - I Komuro
- University of Tokyo, Tokyo, Japan
| |
Collapse
|
22
|
Yotsumoto H, Kaneko H, Itoh H, Kiriyama H, Kamon T, Fujiu K, Morita K, Michihata N, Jo T, Morita H, Yasunaga H, Komuro I. Geographic variation in the outcome of patients hospitalized for heart failure: analysis of a nationwide inpatient database. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The prevalence of heart failure (HF) is increasing in developed countries. Considering the significant socioeconomic burden of HF, nationwide actions against HF are indispensable. To that end, relevant information on regional variations among HF patients are required.
Purpose
We aimed to explore the geographic variations in the characteristics and outcomes of hospitalized HF patients using a nationwide inpatient database.
Methods and results
Using the Diagnosis Procedure Combination database which is a nationwide inpatient database in Japan, we carried out a comprehensive analysis of 447,818 hospitalized patients with HF (median age 81 years, 238,192 men) who were admitted between January 2010 and March 2018 in Japan. We divided the study population into seven geographical regions based on the location of the admitted hospital. Background characteristics were almost similar among all seven regions. The implementation rates of intubation, hemodialysis, inotropic agent, and advanced circulatory supports including intra-aortic balloon pumping and extracorporeal membrane oxygenation varied among the seven regions. There was a significant difference in the length of hospital stay and the in-hospital mortality among the seven regions. The multivariable logistic regression analysis including baseline clinical charasteristics and medication administered within two days after hospital admission fitted with a generalized estimation equation for in-hospital mortality showed that there was still a significant difference in the in-hospital mortality among the seven regions (Table).
Conclusion
The analysis of a nationwide inpatient database showed that geographical variations existed regarding the outcomes of patients hospitalized for HF. This suggests the necessity of further efforts to establish a standardized medical care system in this era of HF pandemic.
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): Grants from the Ministry of Health, Labour and Welfare, Japan (19AA2007 and H30-Policy-Designated-004) and the Ministry of Education, Culture, Sports, Science and Technology, Japan (17H04141)
Collapse
Affiliation(s)
| | - H Kaneko
- The University of Tokyo, Tokyo, Japan
| | - H Itoh
- The University of Tokyo, Tokyo, Japan
| | | | - T Kamon
- The University of Tokyo, Tokyo, Japan
| | - K Fujiu
- The University of Tokyo, Tokyo, Japan
| | - K Morita
- The University of Tokyo, Tokyo, Japan
| | | | - T Jo
- The University of Tokyo, Tokyo, Japan
| | - H Morita
- The University of Tokyo, Tokyo, Japan
| | | | - I Komuro
- The University of Tokyo, Tokyo, Japan
| |
Collapse
|
23
|
Kashiwa A, Aiba T, Makimoto H, Yagihara N, Ohno S, Makiyama T, Hayashi K, Itoh H, Sumitomo N, Yoshinaga M, Morita H, Makita N, Kusano K, Horie M, Shimizu W. Systematic Evaluation of KCNQ1 variant using ACMG/AMP Guidelines and Risk Stratification in Long QT Syndrome Type 1. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Mutation/variant-site specific risk stratification in long-QT syndrome type 1 (LQT1) has been well investigated, but it is still challenging to adopt current enormous genomic information to clinical aspects caused by each mutation/variant. We assessed a novel variant-specific risk stratification in LQT1 patients.
Methods
We classified a pathogenicity of 142 KCNQ1 variants among 927 LQT1 patients (536 probands and 391 family members) based on the American College of Medical Genetics and Genomics (ACMG) and Association for Molecular Pathology (AMP) guidelines and evaluated whether the ACMG/AMP-based classification was associated with arrhythmic risk in LQT1 patients.
Results
Among 142 KCNQ1 variants, 60 (42.3%), 58 (40.8%), and 24 (16.9%) variants were classified into pathogenic (P), likely pathogenic (LP), and variant of unknown significance (VUS), respectively. The ACMG/AMP guideline-based classification was significantly associated with syncopal events (particularly those during exercise) and LQT risk score (Schwartz score) in overall population. On the other hand, arrhythmic risk was completely different between probands and families even in the same variants. The baseline QTc interval and variant location could stratify the risk in family members but not in probands, however, the ACMG/AMP-based KCNQ1 variant classification stratified the risk in LQT1 probands as well as family members. Multivariate analysis showed that proband (HR=2.52; 95% CI: 1.93–3.30; p<0.0001), longer QTc interval (≥500ms) (HR=1.41; 95% CI: 1.11–1.79; p<0.0001), variants at membrane spanning (MS) (vs. those at N/C terminus) (HR=1.40; 95% CI: 1.07–1.85; p=0.02), C-loop (vs. N/C terminus) (HR=1.58; 95% CI: 1.11–2.24; p=0.01), and P variants [(vs. LP) (HR=1.71; 95% CI: 1.33–2.23; p<0.0001), (vs. VUS) (HR=1.96; 95% CI: 1.19–3.46; p=0.007)] were significantly associated with syncopal events. A clinical score (0–4) based on the proband, QTc (≥500ms), variant location (MS or C-loop) and P variant by the ACMG/AMP guidelines allowed identification of patients more likely to have arrhythmic events (Figure A and B).
Conclusion
Comprehensive evaluation of clinical findings and pathogenicity of KCNQ1 variants based on the ACMG/AMP-based evaluation may stratify arrhythmic risk of congenital long-QT syndrome type 1.
Figure 1
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): Health Science Research Grant from the Ministry of Health,Labor and Welfare of Japan for Clinical Research on Measures for Intractable Diseases (H24-033, H26-040, H27-032) and a research grant from the Japan Agency for Medical Research and Development (AMED) (15km0305015h0101, 16ek0210073h0001)
Collapse
Affiliation(s)
- A Kashiwa
- National Cerebral and Cardiovascular Center, Suita, Japan
| | - T Aiba
- National Cerebral and Cardiovascular Center, Suita, Japan
| | - H Makimoto
- National Cerebral and Cardiovascular Center, Suita, Japan
| | | | - S Ohno
- National Cerebral and Cardiovascular Center, Suita, Japan
| | | | - K Hayashi
- Kanazawa University, Kanazawa, Japan
| | - H Itoh
- Shiga University of Medical Science, Otsu, Japan
| | - N Sumitomo
- Saitama Medical University International Medical Center, Hidaka, Japan
| | - M Yoshinaga
- National Hospital Organization Kagoshima Medical Center, Kagoshima, Japan
| | - H Morita
- Okayama University, Okayama, Japan
| | - N Makita
- National Cerebral and Cardiovascular Center, Suita, Japan
| | - K Kusano
- National Cerebral and Cardiovascular Center, Suita, Japan
| | - M Horie
- Shiga University of Medical Science, Otsu, Japan
| | - W Shimizu
- Nippon Medical School Teaching Hospital, Tokyo, Japan
| |
Collapse
|
24
|
Itoh H, Kaneko H, Kiriyama H, Kamon T, Michihata N, Jo T, Morita H, Yasunaga H, Komuro I. Cardiovascular health metrics of 122,788 couples: analysis of a nationwide epidemiological database. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
The American Heart Association suggests that cardiovascular health (CVH) metrics based on established risk factors and behaviors to reduce the morbidity and mortality of cardiovascular disease. Couples share environmental and lifestyle habits, and therefore, there can be an intra-couple correlation of CVH metrics. However, the clinical data on the association of the CVH metrics among couples are limited.
Purpose
We aimed to explore the intra-couple relationship of the AHA-defined cardiovascular health metrics using a nationwide epidemiological database.
Methods
This study is a retrospective observational cross-sectional analysis using the health claims database of the Japan Medical Data Center between January 2005 and December 2016. We modified the American Heart Association CVH metrics and defined ideal CVH component as following: 1) nonsmoking, 2) body mass index <25 kg/m2, 3) physical activity at goal, 4) untreated blood pressure <120/80 mm Hg, 5) untreated fasting glucose <100 mg/dL, and 6) untreated total cholesterol <200 mg/dL.
Results
We analyzed 122,788 heterosexual couples enrolled in the Japan Medical Data Center database. The average age of participants was 50.2±9.5 years in men and 48.6±8.9 years in women. Good correlation was observed between couples in terms of the modified ideal CVH metrics (Figure 1A). The prevalence of meeting ≥5 ideal components in the female partners increased from 31% in the male partners meeting no ideal components to 55% in those meeting 6 ideal components. The concordance ratio is particularly higher in the component of smoking status, blood pressure, and fasting glucose level. A man who meets ≥5 ideal components probably had a woman partner who meets ≥5 ideal components (Odds ratio 1.6, 95% CI: 1.6–1.7, p<0.001). The P value for the McNemar test was significant for all components, indicating that women apparently met ideal metrics for metrics in discordant Couples (Figure 1B).
Conclusion
Our investigation showed that there was a good intra-couple correlation of the ideal modified CVH metrics, suggesting the potential of couple-based assessment and management for improving CVH status.
Funding Acknowledgement
Type of funding source: None
Collapse
Affiliation(s)
- H Itoh
- University of Tokyo, Tokyo, Japan
| | - H Kaneko
- University of Tokyo, Tokyo, Japan
| | | | - T Kamon
- University of Tokyo, Tokyo, Japan
| | | | - T Jo
- University of Tokyo, Tokyo, Japan
| | - H Morita
- University of Tokyo, Tokyo, Japan
| | | | - I Komuro
- University of Tokyo, Tokyo, Japan
| |
Collapse
|
25
|
Kamon T, Kaneko H, Itoh H, Kiriyama H, Koyama K, Fujiu K, Morita H, Uno K, Hayashi N, Komuro I. Association between insulin resistance and left ventricular diastolic dysfunction in non-diabetic general population. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3057] [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
Insulin resistance due to visceral fat accumulation plays a central role in the development of diabetic mellitus and subsequent cardiovascular disease. Abdominal obesity and diabetic mellitus are associated with the progression of left ventricular diastolic dysfunction which is the major structural abnormality in patients with heart failure. However, whether insulin resistance influences left ventricular diastolic dysfunction in non-diabetic subjects is unclear.
Purpose
In this study, we aimed to clarify the association between insulin resistance and left ventricular diastolic dysfunction in non-diabetic general population.
Methods
We examined 2,572 non-diabetic subjects with preserved left ventricular systolic function (ejection fraction ≥50%) and without a past history of diabetic mellitus, heart failure, coronary artery disease, atrial fibrillation, stroke, moderate to severe valvular disease, who underwent medical check-ups at the University of Tokyo Hospital from January 2009 to December 2018. Diabetes mellitus was defined as fasting glucose level ≥126 mg/dL or a subject's use of oral antidiabetic medications or insulin. We calculated the Homeostasis Model Assessment-Insulin Resistance (HOMA-IR) score [HOMA-IR = fasting glucose (mg/dL) × insulin (μU/mL) / 405], and defined insulin resistance as HOMA-IR ≥2.5. Left ventricular diastolic function was assessed by echocardiography, using tissue doppler analysis (E/E' ratio in septal and lateral). Visceral adiposity was assessed as visceral fat volume measured by computed tomography scanner.
Results
Mean age was 53.3±9.8 years, and 1,746 subjects (67.9%) were male. Overall, HOMA-IR was 1.1 on average, and HOMA-IR ≥2.5 was observed in 5.0% of study population. BMI and the prevalence of obesity were higher in subjects with HOMA-IR ≥2.5 than in those without. There was no significant difference in left ventricular ejection fraction between HOMA-IR ≥2.5 and ≤2.5. E/E' ratio in septal and lateral were higher in subjects with HOMA-IR ≥2.5 than in those without. Multivariable logistic regression analysis demonstrated that obesity and waist circumference, visceral fat volume were independently associated with HOMA-IR ≥2.5, however, age, hypertension, hypercholesterolemia were not. Further, multiple regression analysis including insulin resistance, age, male gender, obesity, hypertension, hypercholesterolemia, cigarette smoking and visceral fat volume, showed that insulin resistance was an independent determinant of increasing E/E' in both septal and lateral, whereas visceral fat volume was not (Figure 1).
Conclusion
The results of the present study suggest that insulin resistance due to visceral fat accumulation might be associated with the development of left ventricular diastolic dysfunction in non-diabetic general population without overt cardiovascular disease.
Figure 1
Funding Acknowledgement
Type of funding source: None
Collapse
Affiliation(s)
- T Kamon
- University of Tokyo Hospital, The Department of Cardiovascular Medicine, Tokyo, Japan
| | - H Kaneko
- University of Tokyo Hospital, The Department of Cardiovascular Medicine, Tokyo, Japan
| | - H Itoh
- University of Tokyo Hospital, The Department of Cardiovascular Medicine, Tokyo, Japan
| | - H Kiriyama
- University of Tokyo Hospital, The Department of Cardiovascular Medicine, Tokyo, Japan
| | - K Koyama
- University of Tokyo Hospital, The Department of Computational Radiology and Preventive Medicine, Tokyo, Japan
| | - K Fujiu
- University of Tokyo Hospital, The Department of Cardiovascular Medicine, Tokyo, Japan
| | - H Morita
- University of Tokyo Hospital, The Department of Cardiovascular Medicine, Tokyo, Japan
| | - K Uno
- University of Tokyo Hospital, The Department of Computational Radiology and Preventive Medicine, Tokyo, Japan
| | - N Hayashi
- University of Tokyo Hospital, The Department of Computational Radiology and Preventive Medicine, Tokyo, Japan
| | - I Komuro
- University of Tokyo Hospital, The Department of Cardiovascular Medicine, Tokyo, Japan
| |
Collapse
|
26
|
Suzuki K, Sato Y, Nakahara R, Tatsuta R, Tanaka R, Itoh H. Venous thromboembolisms and rheology in ovarian cancer patients after postoperative adjuvant paclitaxel and carboplatin therapy. Pharmazie 2020; 75:205-207. [PMID: 32393430 DOI: 10.1691/ph.2020.9908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
In ovarian cancer patients, chemotherapy can be an independent risk factor for the development of thromboembolic complications, such as venous thromboembolism (VTE). The factors and their values that lead to the development of VTE are remaining unknown in patients undergoing chemotherapy with paclitaxel and carboplatin. This study investigated serial rheological parameters (D-dimer, red blood cell count, hematocrit, and plasma viscosity) for VTE that developed following chemotherapy for ovarian cancer. Forty-eight ovarian cancer patients undergoing chemotherapy were enrolled in this study. A significant difference in the mean values of plasma viscosity and hematocrit was observed between the VTE group (n = 5) and the non-VTE group (n = 43) (P < 0.10). Univariate and multiple regression analyses by stepwise selection identified plasma viscosity as the independent variable associated with VTE development. The VTE incidence was the same as in previous reports. The results support the contention that plasma viscosity could be an index for development of VTE in ovarian cancer after chemotherapy.
Collapse
Affiliation(s)
- K Suzuki
- Department of Clinical Pharmacy, Oita University Hospital, Yufu-shi, Japan
| | - Y Sato
- Department of Clinical Pharmacy, Oita University Hospital, Yufu-shi, Japan;,
| | - R Nakahara
- Department of Clinical Pharmacy, Oita University Hospital, Yufu-shi, Japan
| | - R Tatsuta
- Department of Clinical Pharmacy, Oita University Hospital, Yufu-shi, Japan
| | - R Tanaka
- Department of Clinical Pharmacy, Oita University Hospital, Yufu-shi, Japan
| | - H Itoh
- Department of Clinical Pharmacy, Oita University Hospital, Yufu-shi, Japan
| |
Collapse
|
27
|
Itoh H, Kaneko H, Kiriyama H, Yoshida Y, Nakanishi K, Mizuno Y, Daimon M, Morita H, Yatomi Y, Komuro I. P198 Validation of the updated blood pressure classification based on the ACC/AHA guidelines in the perspective of subclinical atherosclerosis in general population. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehz872.070] [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
American College of Cardiology (ACC) and American Heart Association (AHA) revised their guideline for hypertension in 2017, and the threshold of normal blood pressure (BP) was lowered, in the perspective of the prevention of optimal prevention of cardiovascular diseases. On the other hand European Society of Cardiology and European Society of Hypertension updated their guideline in 2018. However, the cut off value of blood pressure for hypertension was not changed (sBP ≥ 140 mmHg or dBP ≥ 90 mmHg). Therefore, the validity of the updated guideline of ACC/AHA still remains controversial, and there is so far no evidence regarding the BP category according to the ACC/AHA guidelines in general population.
Purpose
We aimed to clarify the association between the updated BP classification and carotid intima-media thickness (IMT), as a marker of subclinical atherosclerosis, in general population using a community-based cohort.
Methods
We analyzed 1,241 subjects undergoing medical check-ups at the University of Tokyo Hospital. Study subjects were categorized into 3 groups based on their BP levels: normal pressure (sBP < 130 mmHg and dBP < 80 mmHg); stage 1 hypertension (130 mmHg ≤ sBP < 140 mmHg or 80 mmHg ≤ dBP< 90 mmHg); and stage 2 hypertension (sBP ≥ 140 mmHg or dBP ≥ 90 mmHg, including subjects prescribed with antihypertensive agents). We defined carotid plaque as IMT ≥ 1.1 mm.
Results
Out of 1,241 subjects, 556 patients (44.8%) were categorized in the normal BP group, whereas 236 subjects (19.0%) and 449 subjects (36.2%) were categorized in the stage 1 and stage 2 hypertension groups, respectively. Among subjects categorized in the stage 2 hypertension group, 348 subjects (77.5%) patients were taking antihypertensive medications. Percentage of male gender, and age increased with BP category. Classical CVD risk factors such as diabetes mellitus and hypercholesterolemia were common in subjects in the hypertension groups. IMT increased as the BP category progressed from normal BP to stage 2 hypertension. The prevalence of carotid plaque also increased with an increase in BP. Univariate regression analysis showed the linear association between the BP category and prevalence of carotid plaque. Multivariable logistic regression analysis demonstrated that BP category as well as age ≥60 years, male gender, body mass index ≥25 kg/m2, and diabetes mellitus were independently associated with carotid plaque formation. BP category was associated with the prevalence of carotid plaque formation in any subgroup divided by age (< 60 years old, and ≥60 years old) or gender.
Conclusions
Thickening of IMT developed in stage 1 hypertension, and further increased in stage 2 hypertension even in general population, indicating the importance of the therapeutic intervention according to the updated ACC/AHA guideline for hypertension.
Abstract P198 Figure.
Collapse
Affiliation(s)
- H Itoh
- University of Tokyo, Tokyo, Japan
| | - H Kaneko
- University of Tokyo, Tokyo, Japan
| | | | | | | | - Y Mizuno
- University of Tokyo, Tokyo, Japan
| | - M Daimon
- University of Tokyo, Tokyo, Japan
| | - H Morita
- University of Tokyo, Tokyo, Japan
| | - Y Yatomi
- University of Tokyo, Tokyo, Japan
| | - I Komuro
- University of Tokyo, Tokyo, Japan
| |
Collapse
|
28
|
Itoh H, Ihara N, Fukumoto H, Wakuya H. A motion imitation system for humanoid robots with inference-based optimization and an auditory user interface. Artif Life Robotics 2019. [DOI: 10.1007/s10015-019-00575-5] [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: 12/01/2022]
|
29
|
Itoh H, Kaneko H, Kiriyama H, Yoshida Y, Nakanishi K, Mizuno Y, Daimon M, Morita H, Yatomi Y, Yamamichi N, Komuro I. P5293Effect of metabolically health obesity on carotid intima-media thickness in general population: a community-based cohort study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0264] [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
Introduction
Obesity is a common and independent risk factor for all-cause mortality. More specifically, obesity is a major component of atherosclerosis in association with metabolic disorders including metabolic syndrome (MetS), resulting in various cardiovascular diseases (CVD). Alternatively, obese subjects without MetS are prevalent, also referred to as metabolically healthy obesity (MHO). However, most preceding studies regarding MHO have been limited by small cohorts. Therefore, the effect of MHO on atherosclerosis in the general population remains unclear.
Purpose
In this study, we sought to clarify the effect of MHO on carotid intima-media thickness (IMT) as a marker of early stage atherosclerosis using a community-based cohort in general population.
Methods
We examined subjects who underwent medical check-up at our University Hospital. We defined obesity as body mass index ≥25.0 kg/m2. Abdominal obesity, defined as waist circumstance at umbilical level ≥85 cm in men and ≥90 cm in women, was obligatory for the diagnosis of MetS. In addition to abdominal obesity, any two of the following three abnormalities should be observed for the diagnosis of MetS, [1] Dyslipidemia: triglyceride ≥150 mg/dL, HDL-C <40 mg/dL, or use of lipid lowering medication, [2] Hypertension: systolic blood pressure ≥130 mmHg, diastolic blood pressure ≥85 mmHg, or use of antihypertensive medication, and [3] Hyperglycemia: fasting plasma glucose ≥110 mg/dL or use of hypoglycemic medication. MHO was defined as obese subjects without MetS, whereas we defined metabolically unhealthy obesity (MUO) as obese subjects with MetS. We defined carotid plaque as IMT ≥1.1 mm.
Results
Among 1,241 subjects, 857 subjects (69%) were categorized in the normal body weight group, whereas 275 subjects (22%) were categorized as MHO, and 109 subjects (9%) were categorized as MUO. Compared to non-obese subjects, prevalence of classical cardiovascular risk factors including hypertension, diabetes mellitus, and dyslipidemia increased in subjects with MHO, and further increased in those with MUO. IMT was higher in obese subjects compared to those without obesity. Similarly, the prevalence of carotid plaque formation was also higher in obese subjects. Multivariable logistic regression analysis demonstrated that age ≥60 years, male sex, hypertension, diabetes mellitus, MHO subjects (Odds ratio [OR]; 1.6, p=0.005), and MUO subjects (OR 1.7, p=0.04) were independently associated with carotid plaque formation. There was no statistical difference in the risk of carotid plaque formation between subjects with MHO and MUO.
IMT and Carotid Plaque
Conclusions
IMT and the prevalence of carotid plaque are higher in both subjects with MHO and MUO compared to non-obese subjects in the general population. We need to take obesity regardless of the presence of MetS into consideration as high-risk subjects for subsequent CVD.
Collapse
Affiliation(s)
- H Itoh
- University of Tokyo, Tokyo, Japan
| | - H Kaneko
- University of Tokyo, Tokyo, Japan
| | | | | | | | - Y Mizuno
- University of Tokyo, Tokyo, Japan
| | - M Daimon
- University of Tokyo, Tokyo, Japan
| | - H Morita
- University of Tokyo, Tokyo, Japan
| | - Y Yatomi
- University of Tokyo, Tokyo, Japan
| | | | - I Komuro
- University of Tokyo, Tokyo, Japan
| |
Collapse
|
30
|
Kiriyama H, Kaneko H, Itoh H, Yoshida Y, Nakanishi K, Mizuno Y, Daimon M, Morita H, Yatomi Y, Yamamichi N, Komuro I. P4389Effect of cigarette smoking on carotid artery atherosclerosis: a community-based cohort study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0794] [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
Cigarette smoking is closely associated with the development of cardiovascular diseases (CVD), and the European Society of Cardiology/European Atherosclerosis Society (ESC/EAS) guidelines recommend smoking bans.On the other hand, the relationship between cigarette smoking and subclinical atherosclerosis has not been fully studied. Carotid intima-media thickness (cIMT) is commonly used as a subclinical atherosclerosis marker, and a carotid plaque feature is also known to be an important predictor of cardiovascular diseases.
Purpose
We sought to clarify the association between cigarette smoking and subclinical atherosclerosis by evaluating carotid plaque including cIMT and carotid plaque features in general population.
Methods and results
Among 1,209 participants with no prior coronary artery disease who received a medical check-up with cardiovascular examination at our institution, 450 participants (37.2%) were smokers (including both past and current smokers). We defined carotid plaque as cIMT ≥1.1 mm and high-risk plaque as carotid plaque with hypoechoic dominant and/or plaque ulceration. The value of cIMT and the rate of carotid plaque were not different between smokers and never smokers (Figure A & B). However, the rate of carotid high-risk plaque was significantly higher in participants with smokers than those with never smokers (29.7%, vs 23.5%, p=0.011) (Figure C). Even after adjustment with covariates including age, gender and traditional cardiovascular risk factors, cigarette smoking was independently associated with high-risk plaque formation (odds ratio 1.384, 95% CI 1.020–1.877; p=0.037). According to the subgroup analysis classified by age, cigarette smoking was associated with not only the development of high-risk plaque but also the increased value of cIMT in the subgroup over 60 years old, whereas only the rate of high-risk plaque was higher in smokers than never smokers in the subgroup under 60 years old.
Carotid plaque and smoking
Conclusion
The development of high-risk carotid artery plaque may precede thickening of cIMT in cigarette smokers, suggesting that the novel insight for the pathological mechanism underlying cardiovascular events and cigarette smoking.
Collapse
Affiliation(s)
| | - H Kaneko
- University of Tokyo, Tokyo, Japan
| | - H Itoh
- University of Tokyo, Tokyo, Japan
| | | | | | - Y Mizuno
- University of Tokyo, Tokyo, Japan
| | - M Daimon
- University of Tokyo, Tokyo, Japan
| | - H Morita
- University of Tokyo, Tokyo, Japan
| | - Y Yatomi
- University of Tokyo, Tokyo, Japan
| | | | - I Komuro
- University of Tokyo, Tokyo, Japan
| |
Collapse
|
31
|
Takayama Y, Ono Y, Mizukami Y, Itoh H, Nakajima N, Arai H, Tanaka S, Nobusawa S, Yokoo H, Onozato Y. Comparative genome-wide analysis of gastric adenocarcinomas with hyperplastic polyp components. Virchows Arch 2019; 475:383-389. [DOI: 10.1007/s00428-019-02592-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 04/06/2019] [Accepted: 06/03/2019] [Indexed: 12/15/2022]
|
32
|
Matsushima Y, Hachisuka A, Itoh H, Sugimoto K, Saeki S. Safety and feasibility of transcranial direct current stimulation for patients with post-polio syndrome. Brain Stimul 2019. [DOI: 10.1016/j.brs.2018.12.396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
|
33
|
Onoue T, Iwataki M, Araki M, Itoh H, Isotani A, Umeda H, Fukuda S, Nagata Y, Tsuda Y, Fujino Y, Hanyu M, Ando K, Shirai S, Takeuchi M, Saeki S, Levine RA, Otsuji Y. Insights into the mechanism of paradoxical low-flow, low-pressure gradient severe aortic stenosis: association with reduced O 2 consumption by the whole body. Am J Physiol Heart Circ Physiol 2019; 316:H840-H848. [PMID: 30681367 DOI: 10.1152/ajpheart.00715.2018] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The mechanism of reduced stroke volume index (SVi) in paradoxical low-flow, low-pressure gradient (PLFLPG) aortic stenosis (AS) remains unclarified. Guyton et al. ( 21 ) demonstrated that SVi is determined by whole body O2 consumption (V̇o2) in many subjects, including patients with heart disease. We hypothesized that reduced SVi in PLFLPG AS is associated with reduced V̇o2 by the whole body. This study investigated the relationship between V̇o2, SVi, and AS severity in patients with AS to examine the association between reduced V̇o2 and PLFLPG AS. In 59 patients (24 men and 35 women, mean age: 78 ± 7 yr old) with severe AS, SVi, AS severity, and type were evaluated by echocardiography, and V̇o2 was measured by the fraction of O2 in expired gases. SVi and V̇o2 were significantly decreased in 20 patients with PLFLPG AS compared with 39 patients with non-PLFLPG AS (30 ± 4 vs. 41 ± 7 ml/m2 and 2.4 ± 0.5 vs. 3.0 ± 0.5 ml·min-1·kg-1, respectively, P < 0.01). The SVi-to-V̇o2 ratio was not different between the two groups (13.1 ± 2.6 vs. 13.6 ± 2.1, not significant). SVi was independently correlated with V̇o2 ( r = 0.74, P < 0.01) but not with the aortic valve area index. Categorized PLFLPG AS was also significantly associated with reduced V̇o2 ( P < 0.001). PLFLPG AS is associated with reduced V̇o2 by the whole body, which may offer insights into the mechanism of PLFLPG AS. NEW & NOTEWORTHY Paradoxical low-flow, low-pressure gradient severe aortic stenosis (PLFLPG AS) is an important and problematic subtype, and its central pathophysiology with reduced stroke volume is yet to be clarified. We hypothesized and subsequently clarified that reduced stroke volume in PLFLPG AS is associated with reduced O2 consumption by the whole body. This study suggests important insights into the mechanism of PLFLPG AS and may further promote studies to investigate further mechanisms and novel treatment.
Collapse
Affiliation(s)
- Takeshi Onoue
- Second Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine , Kitakyushu , Japan
| | - Mai Iwataki
- Second Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine , Kitakyushu , Japan
| | - Masaru Araki
- Second Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine , Kitakyushu , Japan
| | - Hideaki Itoh
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health, School of Medicine , Kitakyushu , Japan
| | - Akihiro Isotani
- Department of Cardiology, Kokura Memorial Hospital , Kitakyushu , Japan
| | - Hiromi Umeda
- Department of Echocardiography, Kokura Memorial Hospital , Kitakyushu , Japan
| | - Shota Fukuda
- Second Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine , Kitakyushu , Japan
| | - Yasufumi Nagata
- Second Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine , Kitakyushu , Japan
| | - Yuki Tsuda
- Second Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine , Kitakyushu , Japan
| | - Yoshihisa Fujino
- Department of Environmental Epidemiology, University of Occupational and Environmental Health, School of Medicine , Kitakyushu , Japan
| | - Michiya Hanyu
- Department of Cardiovascular Surgery, Kokura Memorial Hospital, Kitakyushu, Japan
| | - Kenji Ando
- Department of Cardiology, Kokura Memorial Hospital , Kitakyushu , Japan
| | - Shinichi Shirai
- Department of Cardiology, Kokura Memorial Hospital , Kitakyushu , Japan
| | - Masaaki Takeuchi
- Department of Laboratory and Transfusion Medicine, University of Occupational and Environmental Health, School of Medicine , Kitakyushu , Japan
| | - Satoru Saeki
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health, School of Medicine , Kitakyushu , Japan
| | - Robert A Levine
- Cardiac Ultrasound Laboratory, Massachusetts General Hospital , Boston
| | - Yutaka Otsuji
- Second Department of Internal Medicine, University of Occupational and Environmental Health, School of Medicine , Kitakyushu , Japan
| |
Collapse
|
34
|
Affiliation(s)
- Satoru Saeki
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health
| | - Akiko Hachisuka
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health
| | - Hideaki Itoh
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health
| | - Noriaki Kato
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health
| | - Mitsuhiro Ochi
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health
| | - Yasuyuki Matsushima
- Department of Rehabilitation Medicine, University of Occupational and Environmental Health
| |
Collapse
|
35
|
Miki T, Miyoshi T, Osawa K, Kohno K, Nakamura K, Itoh H. P5394N-3 polyunsaturated fatty acids added on a statin progress coronary artery calcium density rather than volume determined by computed tomography: comparison with a statin alone. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5394] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- T Miki
- Okayama University Hospital, Department of Cardiovascular Medicine, Okayama, Japan
| | - T Miyoshi
- Okayama University Hospital, Department of Cardiovascular Medicine, Okayama, Japan
| | - K Osawa
- Okayama University Hospital, Department of Cardiovascular Medicine, Okayama, Japan
| | - K Kohno
- Okayama University Hospital, Department of Cardiovascular Medicine, Okayama, Japan
| | - K Nakamura
- Okayama University Hospital, Department of Cardiovascular Medicine, Okayama, Japan
| | - H Itoh
- Okayama University Hospital, Department of Cardiovascular Medicine, Okayama, Japan
| |
Collapse
|
36
|
Ashikaga K, Itoh H, Maeda T, Tanaka S, Tanaka K, Nagayama M, Akashi YJ, Isobe M. P632Usefulness of the percentage of predicted value of VE vs. VCO2 slope. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p632] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- K Ashikaga
- St.Marianna University School of Medicine, Department of Internal Medicine, Division of Cardiology, Kawasaki, Japan
| | - H Itoh
- Sakakibara Heart Institute, Cardiology, Tokyo, Japan
| | - T Maeda
- Sakakibara Heart Clinic, Clinical Laboratory, Tokyo, Japan
| | - S Tanaka
- Sakakibara Heart Institute, Clinical Laboratory, Tokyo, Japan
| | - K Tanaka
- Sakakibara Heart Institute, Clinical Laboratory, Tokyo, Japan
| | - M Nagayama
- Sakakibara Heart Institute, Cardiology, Tokyo, Japan
| | - Y J Akashi
- St.Marianna University School of Medicine, Department of Internal Medicine, Division of Cardiology, Kawasaki, Japan
| | - M Isobe
- Sakakibara Heart Institute, Cardiology, Tokyo, Japan
| |
Collapse
|
37
|
Higure A, Okamoto K, Hirata K, Todoroki H, Nagafuchi Y, Takeda S, Katoh H, Itoh H, Ohsato K, Nakamura S. Macrophages and Neutrophils Infiltrating into the Liver Are Responsible for Tissue Factor Expression in a Rabbit Model of Acute Obstructive Cholangitis. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1650368] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryAcute obstructive cholangitis (AOC) is one of the most fatal outcomes in sepsis, and frequently complicates disseminated intravascular coagulation (DIC). Recently we found that the plasma tissue factor (TF) level increased and changed in parallel with plasma markers of DIC in patients with AOC. To elucidate the role of TF in the pathogenesis of coagulopathy in AOC, we investigated the plasma levels of TF and its localization by immunohistochemical staining in rabbit models of AOC. Plasma TF activity significantly increased 3 h after the insult (0.63 ± 0.19 U/ml; p <0.01) compared with that beforehand (0.05 ± 0.02 U/ml), then reached a maximum level at 6 h (0.94 ±0.16 U/ml). The fluctuations in plasma TF activity correlated with those of the coagulation parameters including platelet count, fibrinogen, prothrombin time, and antithrombin III activity. Immunohistochemically, enhanced expression of TF was mainly detected in macrophages and neutrophils that had infiltrated into the liver sinusoids and around the bile duct, but not in the sinusoidal endothelial cells. A double immunofluorescence study revealed the concomitant presence of TF and fibrin at sites where macrophages and neutrophils had conglomerated. However, we could not detect an apparent change in TF expression in the lung or kidney. These data suggest that macrophages and neutrophils infiltrating into the liver sinusoids and around the bile duct play a pivotal role in TF expression, leading to coagulopathy in the acute phase of obstructive cholangitis in rabbits.
Collapse
Affiliation(s)
- Aiichiro Higure
- The Department of Surgery-1, University of Occupational and Environmental Health, Kitakyushu
| | - Kohji Okamoto
- The Department of Surgery-1, University of Occupational and Environmental Health, Kitakyushu
| | - Keiji Hirata
- The Department of Surgery-1, University of Occupational and Environmental Health, Kitakyushu
| | - Hidekazu Todoroki
- The Department of Surgery-1, University of Occupational and Environmental Health, Kitakyushu
| | - Yukihisa Nagafuchi
- The Department of Surgery-1, University of Occupational and Environmental Health, Kitakyushu
| | - Shigeaki Takeda
- The Department of Surgery-1, University of Occupational and Environmental Health, Kitakyushu
| | - Hidenori Katoh
- The Department of Surgery-1, University of Occupational and Environmental Health, Kitakyushu
| | - Hideaki Itoh
- The Department of Surgery-1, University of Occupational and Environmental Health, Kitakyushu
| | - Keiichi Ohsato
- The Department of Surgery-1, University of Occupational and Environmental Health, Kitakyushu
| | - Shin Nakamura
- The Department of Molecular and Cellular Biology, Primate Research Institute, Kyoto University, Japan
| |
Collapse
|
38
|
Kudo I, Hosaka M, Haga A, Tsuji N, Nagata Y, Okada H, Fukuda K, Kakizaki Y, Okamoto T, Grave E, Itoh H. The regulation mechanisms of AhR by molecular chaperone complex. J Biochem 2018; 163:223-232. [PMID: 29092071 DOI: 10.1093/jb/mvx074] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 09/14/2017] [Indexed: 11/13/2022] Open
Abstract
The AhR, so called the dioxin receptor, is a member of the nuclear receptor superfamily. The ligand-free AhR forms a cytosolic protein complex with the molecular chaperone HSP90, co-chaperone p23, and XAP2 in the cytoplasm. Following ligand binding like 2, 3, 7, 8-tetrachlorodibenzo-p-dioxin (TCDD), the AhR translocates into the nucleus. Although it has been reported that HSP90 regulates the translocation of the AhR to the nucleus, the precise activation mechanisms of the AhR have not yet been fully understood. AhR consists of the N-terminal bHLH domain containing NLS and NES, the middle PAS domain and the C-terminal transactivation domain. The PAS domain is familiar as a ligand and HSP90 binding domain. In this study, we focused on the bHLH domain that was thought to be a HSP90 binding domain. We investigated the binding properties of bHLH to HSP90. We analyzed the direct interaction of bHLH with HSP90, p23 and XAP2 using purified proteins. We found that not only the PAS domain but also the bHLH domain bound to HSP90. The bHLH domain forms complex with HSP90, p23 and XAP2. We also determined the bHLH binding domain was HSP90 N-domain. The bHLH domain makes a complex with HSP90, p23 and XAP2 via the HSP90 N-domain. Although the NLS is closed in the absence of a ligand, the structure of AhR will be changed in the presence of a ligand, which leads to NLS open, result in the nuclear translocation of AhR.
Collapse
Affiliation(s)
- Ikuru Kudo
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, 1-1 Tegata Gakuen Town, Akita 010-8502, Japan
| | - Miki Hosaka
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, 1-1 Tegata Gakuen Town, Akita 010-8502, Japan
| | - Asami Haga
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, 1-1 Tegata Gakuen Town, Akita 010-8502, Japan
| | - Noriko Tsuji
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, 1-1 Tegata Gakuen Town, Akita 010-8502, Japan
| | - Yuhtaroh Nagata
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, 1-1 Tegata Gakuen Town, Akita 010-8502, Japan
| | - Hirotaka Okada
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, 1-1 Tegata Gakuen Town, Akita 010-8502, Japan
| | - Kana Fukuda
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, 1-1 Tegata Gakuen Town, Akita 010-8502, Japan
| | - Yuka Kakizaki
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, 1-1 Tegata Gakuen Town, Akita 010-8502, Japan
| | - Tomoya Okamoto
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, 1-1 Tegata Gakuen Town, Akita 010-8502, Japan
| | - Ewa Grave
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, 1-1 Tegata Gakuen Town, Akita 010-8502, Japan
| | - Hideaki Itoh
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, 1-1 Tegata Gakuen Town, Akita 010-8502, Japan
| |
Collapse
|
39
|
Yamada N, Saito C, Murayama-Chiba Y, Kano H, Asami Y, Itoh H. Lactobacillus gasseri PA-3 utilizes the purines GMP and guanosine and decreases their absorption in rats. Nucleosides Nucleotides Nucleic Acids 2018; 37:307-315. [PMID: 29723107 DOI: 10.1080/15257770.2018.1454949] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Excessive intake of purine-rich foods elevates serum uric acid levels, making it a risk factor for hyperuricemia. We hypothesized that lactic acid bacteria ingested with food might utilize purines and contribute to their decreased absorption in the intestines, thereby preventing hyperuricemia. We previously reported that Lactobacillus gasseri PA-3 (PA-3) incorporates adenosine/inosine and related purines and that oral ingestion of PA-3 reduced the absorption of these purines in rats. However, it is unclear whether PA-3 also decreases the absorption of other purines, such as guanosine 5'-monophosphate (GMP) and guanosine. This study investigated whether PA-3 incorporates GMP and guanosine and reduces their absorption in rats. PA-3 incorporated both purines, with 14C-GMP uptake being greater than that of 14C-guanosine. Radioactivity in rat blood was significantly lower 30, 45, and 60 minutes after administration of 14C-GMP plus PA-3 than after administration of 14C-GMP alone and was significantly lower 15 minutes after administration of 14C-guanosine plus PA-3 than after administration of 14C-guanosine alone. PA-3 incorporates GMP and guanosine in vitro. Oral administration of PA-3 with GMP and guanosine reduces the intestinal absorption of these purines in vivo. These findings, together with those of previous studies, indicate that PA-3 reduces the absorption of major purines contained in foods. PA-3 may also attenuate the excessive absorption of dietary purines in humans, protecting these individuals against hyperuricemia.
Collapse
Affiliation(s)
- N Yamada
- a Food Microbiology Research Laboratories , R&D Division, Meiji Co., Ltd. Tokyo , Japan
| | - C Saito
- a Food Microbiology Research Laboratories , R&D Division, Meiji Co., Ltd. Tokyo , Japan
| | - Y Murayama-Chiba
- a Food Microbiology Research Laboratories , R&D Division, Meiji Co., Ltd. Tokyo , Japan
| | - H Kano
- a Food Microbiology Research Laboratories , R&D Division, Meiji Co., Ltd. Tokyo , Japan
| | - Y Asami
- a Food Microbiology Research Laboratories , R&D Division, Meiji Co., Ltd. Tokyo , Japan
| | - H Itoh
- a Food Microbiology Research Laboratories , R&D Division, Meiji Co., Ltd. Tokyo , Japan
| |
Collapse
|
40
|
Horikawa H, Kurihara Y, Funakoshi T, Umegaki-Arao N, Takahashi H, Kubo A, Tanikawa A, Kodani N, Minami Y, Meguro S, Itoh H, Izumi K, Nishie W, Shimizu H, Amagai M, Yamagami J. Unique clinical and serological features of bullous pemphigoid associated with dipeptidyl peptidase-4 inhibitors. Br J Dermatol 2018; 178:1462-1463. [PMID: 29478242 DOI: 10.1111/bjd.16479] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- H Horikawa
- Department of Dermatology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Y Kurihara
- Department of Dermatology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - T Funakoshi
- Department of Dermatology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - N Umegaki-Arao
- Department of Dermatology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - H Takahashi
- Department of Dermatology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - A Kubo
- Department of Dermatology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - A Tanikawa
- Department of Dermatology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - N Kodani
- Division of Endocrinology, Metabolism, and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan.,Center for Preventative Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Y Minami
- Division of Endocrinology, Metabolism, and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - S Meguro
- Division of Endocrinology, Metabolism, and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - H Itoh
- Division of Endocrinology, Metabolism, and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - K Izumi
- Department of Dermatology, Hokkaido University Graduate School of Medicine, Kita-ku, Sapporo, Japan
| | - W Nishie
- Department of Dermatology, Hokkaido University Graduate School of Medicine, Kita-ku, Sapporo, Japan
| | - H Shimizu
- Department of Dermatology, Hokkaido University Graduate School of Medicine, Kita-ku, Sapporo, Japan
| | - M Amagai
- Department of Dermatology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - J Yamagami
- Department of Dermatology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| |
Collapse
|
41
|
Itokazu T, Hasegawa M, Kimura R, Osaki H, Albrecht UR, Sohya K, Chakrabarti S, Itoh H, Ito T, Sato TK, Sato TR. Streamlined sensory motor communication through cortical reciprocal connectivity in a visually guided eye movement task. Nat Commun 2018; 9:338. [PMID: 29362373 PMCID: PMC5780522 DOI: 10.1038/s41467-017-02501-4] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [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: 02/24/2017] [Accepted: 12/05/2017] [Indexed: 12/19/2022] Open
Abstract
Cortical computation is distributed across multiple areas of the cortex by networks of reciprocal connectivity. However, how such connectivity contributes to the communication between the connected areas is not clear. In this study, we examine the communication between sensory and motor cortices. We develop an eye movement task in mice and combine it with optogenetic suppression and two-photon calcium imaging techniques. We identify a small region in the secondary motor cortex (MOs) that controls eye movements and reciprocally connects with a rostrolateral part of the higher visual areas (VRL/A/AL). These two regions encode both motor signals and visual information; however, the information flow between the regions depends on the direction of the connectivity: motor information is conveyed preferentially from the MOs to the VRL/A/AL, and sensory information is transferred primarily in the opposite direction. We propose that reciprocal connectivity streamlines information flow, enhancing the computational capacity of a distributed network. Reciprocal connectivity enables tightly coupled information processing across cortical areas. Here the authors develop a visual oculomotor task in mice, identify a small motor area required for it, and demonstrate selective exchange of sensory and motor information between the motor and sensory areas.
Collapse
Affiliation(s)
- Takahide Itokazu
- Werner Reichardt Center for Integrative Neuroscience, University of Tübingen, 72076, Tübingen, Germany
| | - Masashi Hasegawa
- Werner Reichardt Center for Integrative Neuroscience, University of Tübingen, 72076, Tübingen, Germany
| | - Rui Kimura
- Werner Reichardt Center for Integrative Neuroscience, University of Tübingen, 72076, Tübingen, Germany
| | - Hironobu Osaki
- Werner Reichardt Center for Integrative Neuroscience, University of Tübingen, 72076, Tübingen, Germany.,Department of Physiology, Tokyo Women's Medical University, Tokyo, 162-8666, Japan
| | - Urban-Raphael Albrecht
- Werner Reichardt Center for Integrative Neuroscience, University of Tübingen, 72076, Tübingen, Germany
| | - Kazuhiro Sohya
- Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, 187-8502, Japan
| | - Shubhodeep Chakrabarti
- Werner Reichardt Center for Integrative Neuroscience, University of Tübingen, 72076, Tübingen, Germany
| | - Hideaki Itoh
- Graduate School of Science and Engineering, Saga University, Saga, 840-8502, Japan
| | - Tetsufumi Ito
- Department of Anatomy, Kanazawa Medical University, Ishikawa, 920-0293, Japan
| | - Tatsuo K Sato
- Werner Reichardt Center for Integrative Neuroscience, University of Tübingen, 72076, Tübingen, Germany. .,Institute of Neuroscience, Technical University of Munich, 80802, Munich, Germany.
| | - Takashi R Sato
- Werner Reichardt Center for Integrative Neuroscience, University of Tübingen, 72076, Tübingen, Germany. .,Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, 187-8502, Japan. .,PRESTO, Japan Science and Technology Agency, Saitama, 332-0012, Japan.
| |
Collapse
|
42
|
Cho T, Higaki H, Hirata M, Hojo H, Ichimura M, Ishii K, Itakura A, Katanuma I, Kohagura J, Nakashima Y, Saito T, Tatematsu Y, Yoshikawa M, Itoh H, Minami R, Nagashima S, Numakura T, Watanabe H, Yoshida M, Yatsu K, Miyoshi S. Summarized Scaling Laws of Plasma Confining Potential Formation and Effects in the Gamma 10 Tandem Mirror. Fusion Science and Technology 2018. [DOI: 10.13182/fst03-a11963560] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Cho
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - H. Higaki
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Hirata
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - H. Hojo
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Ichimura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Ishii
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - A. Itakura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - I. Katanuma
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - J. Kohagura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Nakashima
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Saito
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Tatematsu
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Yoshikawa
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - H. Itoh
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - R. Minami
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Nagashima
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Numakura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - H. Watanabe
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Yoshida
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Yatsu
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Miyoshi
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| |
Collapse
|
43
|
Isawa M, Tashiro R, Naruse C, Yamaguchi Y, Itoh H, Nishimura T, Tomi M, Shimada H, Saito H, Mochizuki M, Nakashima E. Effect of serotonin transporter genotype on self-reported efficacy and activity changes of brain prefrontal area in response to placebo. Pharmazie 2018; 73:35-41. [PMID: 29441949 DOI: 10.1691/ph.2018.7740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
Patients benefit from drug therapy not only through pharmacological mechanisms, but also through non-pharmacological action (placebo effect), which may be mediated in part by the prefrontal area of the brain. We consider that the difference between responders and non-responders to placebo might be related to polymorphisms in the serotonin transporter-linked polymorphic region (5-HTTLPR). To study this idea, we performed a randomized double-blind clinical trial using caffeine and lactose (placebo). Activity in the prefrontal area of the brain was measured in terms of blood flow by means of near-infrared spectroscopy (NIRS) as an objective indicator. Self-reported feelings of drowsiness on established scales were used as subjective indicators. Twenty-one subjects in block A took caffeine on the first day and placebo on the third day, and 21 in block B took placebo on the first day and placebo on the third day. After placebo administration, improvement of sleepiness was significantly enhanced, a similar extent to that after caffeine medication. Among the 42 subjects, 22 showed S/S type polymorphism in the serotonin transporter (52.4 %), 17 showed S/L type (40.5 %) and 3 showed L/L type (7.10 %). Statistical analysis of the results indicate that subjects with L/L genotype showed a significantly greater placebo response in terms of both self-reported feeling of drowsiness and blood flow in the prefrontal area of the brain associated with working memory (46 area). Our results indicate that the L/L genotype of 5-HTTLPR, which is rare in Japanese (3.2 %) but common in Americans (32.2 %), may be associated with a greater placebo effect.
Collapse
|
44
|
Tanoue H, Morinaga J, Yoshizawa T, Yugami M, Itoh H, Nakamura T, Uehara Y, Masuda T, Odagiri H, Sugizaki T, Kadomatsu T, Miyata K, Endo M, Terada K, Ochi H, Takeda S, Yamagata K, Fukuda T, Mizuta H, Oike Y. Angiopoietin-like protein 2 promotes chondrogenic differentiation during bone growth as a cartilage matrix factor. Osteoarthritis Cartilage 2018; 26:108-117. [PMID: 29074299 DOI: 10.1016/j.joca.2017.10.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [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: 02/21/2017] [Revised: 08/30/2017] [Accepted: 10/10/2017] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Chondrocyte differentiation is crucial for long bone growth. Many cartilage extracellular matrix (ECM) proteins reportedly contribute to chondrocyte differentiation, indicating that mechanisms underlying chondrocyte differentiation are likely more complex than previously appreciated. Angiopoietin-like protein 2 (ANGPTL2) is a secreted factor normally abundantly produced in mesenchymal lineage cells such as adipocytes and fibroblasts, but its loss contributes to the pathogenesis of lifestyle- or aging-related diseases. However, the function of ANGPTL2 in chondrocytes, which are also differentiated from mesenchymal stem cells, remains unclear. Here, we investigate whether ANGPTL2 is expressed in or functions in chondrocytes. METHODS First, we evaluated Angptl2 expression during chondrocyte differentiation using chondrogenic ATDC5 cells and wild-type epiphyseal cartilage of newborn mice. We next assessed ANGPTL2 function in chondrogenic differentiation and associated signaling using Angptl2 knockdown ATDC5 cells and Angptl2 knockout mice. RESULTS ANGPTL2 is expressed in chondrocytes, particularly those located in resting and proliferative zones, and accumulates in ECM surrounding chondrocytes. Interestingly, long bone growth was retarded in Angptl2 knockout mice from neonatal to adult stages via attenuation of chondrocyte differentiation. Both in vivo and in vitro experiments show that changes in ANGPTL2 expression can also alter p38 mitogen-activated protein kinase (MAPK) activity mediated by integrin α5β1. CONCLUSION ANGPTL2 contributes to chondrocyte differentiation and subsequent endochondral ossification through α5β1 integrin and p38 MAPK signaling during bone growth. Our findings provide insight into molecular mechanisms governing communication between chondrocytes and surrounding ECM components in bone growth activities.
Collapse
Affiliation(s)
- H Tanoue
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan; Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - J Morinaga
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - T Yoshizawa
- Department of Medical Biochemistry, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - M Yugami
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan; Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - H Itoh
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan; Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - T Nakamura
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - Y Uehara
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - T Masuda
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - H Odagiri
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - T Sugizaki
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - T Kadomatsu
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - K Miyata
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - M Endo
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - K Terada
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - H Ochi
- Department of Physiology and Cell Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8510, Japan
| | - S Takeda
- Endocrine Center, Toranomon Hospital, 2-2-2 Toranomon, Minato-ku, Tokyo, 05-8470, Japan
| | - K Yamagata
- Department of Medical Biochemistry, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - T Fukuda
- Department of Anatomy and Neurobiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - H Mizuta
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan
| | - Y Oike
- Department of Molecular Genetics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo,Chuo-ku, Kumamoto 860-8556, Japan; Core Research for Evolutional Science and Technology (CREST), Japan Agency for Medical Research and Development (AMED), Tokyo, Japan.
| |
Collapse
|
45
|
Sasaki-Kudoh E, Kudo I, Kakizaki Y, Hosaka M, Ikeda SI, Uemura S, Grave E, Togashi S, Sugawara T, Shimizu H, Itoh H. Cisplatin Inhibits AhR Activation. ACTA ACUST UNITED AC 2018. [DOI: 10.4236/ajmb.2018.81006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
46
|
Okamoto T, Yamamoto H, Kudo I, Matsumoto K, Odaka M, Grave E, Itoh H. HSP60 possesses a GTPase activity and mediates protein folding with HSP10. Sci Rep 2017; 7:16931. [PMID: 29208924 PMCID: PMC5717063 DOI: 10.1038/s41598-017-17167-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 11/22/2017] [Indexed: 12/05/2022] Open
Abstract
The mammalian molecular chaperone, HSP60, plays an essential role in protein homeostasis through mediating protein folding and assembly. The structure and ATP-dependent function of HSP60 has been well established in recent studies. After ATP, GTP is the major cellular nucleotide. In this paper, we have investigated the role of GTP in the activity of HSP60. It was found that HSP60 has different properties with respect to allostery, complex formation and protein folding activity depending on the nucleoside triphosphate present. The presence of GTP slightly affected the ATPase activity of HSP60 during protein folding. These results provide clues as to the functional mechanism of the HSP60-HSP10 complex.
Collapse
Affiliation(s)
- Tomoya Okamoto
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita, 010-8502, Japan
| | - Hiroshi Yamamoto
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita, 010-8502, Japan
| | - Ikuru Kudo
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita, 010-8502, Japan
| | - Kazuya Matsumoto
- Department of Applied Chemistry, Graduate School and Faculty of Engineering Science, Akita University, Akita, 010-8502, Japan
| | - Masafumi Odaka
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita, 010-8502, Japan
| | - Ewa Grave
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita, 010-8502, Japan
| | - Hideaki Itoh
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita, 010-8502, Japan.
| |
Collapse
|
47
|
Kitagawa M, Shiraishi T, Yamamoto S, Kutomi R, Ohkoshi Y, Sato T, Wakui H, Itoh H, Miyamoto A, Yokota SI. Novel antimicrobial activities of a peptide derived from a Japanese soybean fermented food, Natto, against Streptococcus pneumoniae and Bacillus subtilis group strains. AMB Express 2017; 7:127. [PMID: 28641406 PMCID: PMC5479777 DOI: 10.1186/s13568-017-0430-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 06/12/2017] [Indexed: 11/12/2022] Open
Abstract
We recently isolated a tumoricidal peptide from Natto, a Japanese traditional fermented food. In the present study, antimicrobial activity of the Natto peptide was examined. The peptide consisted of 45 amino acid residues, and its structure was predicted to be rich in α-helix. It excreted antimicrobial activity only against Streptococcus pneumoniae and Bacillus subtilis group (B. subtilis, Bacillus pumilus, and Bacillus licheniformis). Lesser antimicrobial activity was observed for Streptococcus species other than S. pneumoniae. Hemolysate or hemin was required for the antimicrobial activity of the peptide. The Natto peptide damages the cell membrane of B. subtilis. On the other hand, chain morphology was induced in S. pneumoniae, which is naturally diplococcus, during the early phases of the Natto peptide treatment; following that the cells were rapidly lysed. This suggested that the Natto peptide displayed a novel narrow spectrum of bactericidal activity and inhibited cell separation during cell division of S. pneumoniae.
Collapse
Affiliation(s)
- Manabu Kitagawa
- Department of Microbiology, Sapporo Medical University School of Medicine, Sapporo, 060-8556 Japan
- Department of Pharmaceutical Health Care and Sciences, Sapporo Medical University School of Medicine, Sapporo, 060-8543 Japan
| | - Tsukasa Shiraishi
- Department of Microbiology, Sapporo Medical University School of Medicine, Sapporo, 060-8556 Japan
| | - Soh Yamamoto
- Department of Microbiology, Sapporo Medical University School of Medicine, Sapporo, 060-8556 Japan
| | - Ryosuke Kutomi
- Department of Microbiology, Sapporo Medical University School of Medicine, Sapporo, 060-8556 Japan
| | - Yasuo Ohkoshi
- Department of Microbiology, Sapporo Medical University School of Medicine, Sapporo, 060-8556 Japan
- Department of Clinical Laboratory, NTT East Sapporo Hospital, Sapporo, 060-0061 Japan
| | - Toyotaka Sato
- Department of Microbiology, Sapporo Medical University School of Medicine, Sapporo, 060-8556 Japan
| | - Hideki Wakui
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita, 010-8502 Japan
| | - Hideaki Itoh
- Department of Life Science, Graduate School and Faculty of Engineering Science, Akita University, Akita, 010-8502 Japan
| | - Atsushi Miyamoto
- Department of Pharmaceutical Health Care and Sciences, Sapporo Medical University School of Medicine, Sapporo, 060-8543 Japan
| | - Shin-ichi Yokota
- Department of Microbiology, Sapporo Medical University School of Medicine, Sapporo, 060-8556 Japan
| |
Collapse
|
48
|
Togashi S, Takahashi K, Tamura A, Toyota I, Hatakeyama S, Komatsuda A, Kudo I, Sasaki Kudoh E, Okamoto T, Haga A, Miyamoto A, Grave E, Sugawara T, Shimizu H, Itoh H. High dose of antibiotic colistin induces oligomerization of molecular chaperone HSP90. J Biochem 2017; 162:27-36. [PMID: 28201527 DOI: 10.1093/jb/mvw104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 12/15/2016] [Indexed: 11/12/2022] Open
Abstract
Colistin is an antimicrobial cationic peptide that belongs to the polymyxin family. Colistin was clinically used for the treatment of gram-negative infections but fell out of favour because of its significant side effects including neurotoxicity and nephrotoxicity. More recently, colistin has been regarded as one of the important options for nosocomial infections caused by multidrug resistant bacteria. Mechanisms of both the side effect onset of the drug and the side effect reduction are yet to be elucidated. In this study, we identified the specific binding protein of colistin using an affinity column chromatography. Colistin binds to the molecular chaperone HSP90. Although colistin slightly suppressed the chaperone activity of HSP90, there are no effects on the ATPase activity for a low concentration of colistin. Interestingly, colistin-induced aggregation of HSP90 via the N-domain. As for the cell viability of the SHSY5Y cell, the cell viability decreased to approximately 80% by the colistin 300 μM. However, the cell viability recovered to approximately 100% by adding ATP dosage. The same result was obtained by dot blot assay using anti-HSP90 antibody. Our results may help to understand the side effect mechanism of colistin.
Collapse
Affiliation(s)
- Shuntaro Togashi
- Department of Neurosurgery, Akita University Graduate School of Medicine, Akita 010-8543, Japan
| | - Kyosuke Takahashi
- Department of Life Science, Akita University Graduate School of Engineering Science, Akita 010-8502, Japan
| | - Arisa Tamura
- Department of Life Science, Akita University Graduate School of Engineering Science, Akita 010-8502, Japan
| | - Ikumi Toyota
- Department of Life Science, Akita University Graduate School of Engineering Science, Akita 010-8502, Japan
| | - Shiori Hatakeyama
- Department of Life Science, Akita University Graduate School of Engineering Science, Akita 010-8502, Japan
| | - Atsushi Komatsuda
- Department of Hematology, Nephrology, Rheumatology, Akita University Graduate School of Medicine, Akita 010-8543, Japan
| | - Ikuru Kudo
- Department of Life Science, Akita University Graduate School of Engineering Science, Akita 010-8502, Japan
| | - Erina Sasaki Kudoh
- Department of Neurosurgery, Akita University Graduate School of Medicine, Akita 010-8543, Japan
| | - Tomoya Okamoto
- Department of Life Science, Akita University Graduate School of Engineering Science, Akita 010-8502, Japan
| | - Asami Haga
- Department of Life Science, Akita University Graduate School of Engineering Science, Akita 010-8502, Japan
| | - Asuka Miyamoto
- Department of Life Science, Akita University Graduate School of Engineering Science, Akita 010-8502, Japan
| | - Ewa Grave
- Department of Life Science, Akita University Graduate School of Engineering Science, Akita 010-8502, Japan
| | - Taku Sugawara
- Department of Spinal cord and Spine Surgery, Research Institute for Brain and Blood Vessels-Akita, 010-0874 Akita, Japan
| | - Hiroaki Shimizu
- Department of Neurosurgery, Akita University Graduate School of Medicine, Akita 010-8543, Japan
| | - Hideaki Itoh
- Department of Life Science, Akita University Graduate School of Engineering Science, Akita 010-8502, Japan
| |
Collapse
|
49
|
Azegami T, Yuki Y, Sawada S, Mejima M, Ishige K, Akiyoshi K, Itoh H, Kiyono H. Nanogel-based nasal ghrelin vaccine prevents obesity. Mucosal Immunol 2017; 10:1351-1360. [PMID: 28120848 DOI: 10.1038/mi.2016.137] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Accepted: 12/19/2016] [Indexed: 02/04/2023]
Abstract
Obesity is associated with multiple comorbidities such as cardiovascular diseases and has a huge economic impact on the health-care system. However, the treatment of obesity remains insufficient in terms of efficacy, tolerability, and safety. Here we created a nasal vaccine against obesity for the first time. To avoid the injectable administration-caused pain and skin-related adverse event, we focused on the intranasal route of antigen delivery. We developed a vaccine antigen (ghrelin-PspA (pneumococcal surface protein A)), which is a recombinant fusion protein incorporating ghrelin, a hormone that stimulates food intake and decreases energy expenditure, and PspA, a candidate of pneumococcal vaccine as a carrier protein. Ghrelin-PspA antigen was mixed with cyclic di-GMP adjuvant to enhance the immunogenicity and incorporated within a nanometer-sized hydrogel for the effective antigen delivery. Intranasal immunization with ghrelin-PspA vaccine elicited serum immunoglobulin G antibodies against ghrelin and attenuated body weight gain in diet-induced obesity mice. This obesity-attenuating effect was caused by a decrease in fat accumulation and an increase in energy expenditure that was partially due to an increase in the expression of mitochondrial uncoupling protein 1 in brown adipose tissue. The development of this nasal vaccine provides a new strategy for the prevention and treatment of obesity.
Collapse
Affiliation(s)
- T Azegami
- Department of Internal Medicine, School of Medicine, Keio University, Tokyo, Japan.,Division of Mucosal Immunology, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.,International Research and Development Center for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Y Yuki
- Division of Mucosal Immunology, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.,International Research and Development Center for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - S Sawada
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, Japan.,Japan Science and Technology Agency (JST), The Exploratory Research for Advanced Technology (ERATO), Katura Int' Tech Center, Kyoto, Japan
| | - M Mejima
- Division of Mucosal Immunology, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - K Ishige
- Biochemicals Division, Yamasa Corporation, Chiba, Japan
| | - K Akiyoshi
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, Japan.,Japan Science and Technology Agency (JST), The Exploratory Research for Advanced Technology (ERATO), Katura Int' Tech Center, Kyoto, Japan
| | - H Itoh
- Department of Internal Medicine, School of Medicine, Keio University, Tokyo, Japan
| | - H Kiyono
- Division of Mucosal Immunology, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.,International Research and Development Center for Mucosal Vaccines, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| |
Collapse
|
50
|
Ichikawa M, Ohno S, Fukumoto D, Takayama K, Wada Y, Fukuyama M, Makiyama T, Itoh H, Horie M. P1700Identification of copy number variations by next generation sequencer in patients with inherited primary arrhythmia syndromes. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|