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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.
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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
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Yamada D, Matsusako M, Yoneoka D, Oikado K, Ninomiya H, Nozaki T, Ishiyama M, Makidono A, Otsuji M, Itoh H, Ojiri H. Ex-vivo 1.5T MR Imaging versus CT in Estimating the Size of the Pathologically Invasive Component of Lung Adenocarcinoma Spectrum Lesions. Magn Reson Med Sci 2024; 23:92-101. [PMID: 36529498 PMCID: PMC10838715 DOI: 10.2463/mrms.mp.2022-0125] [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: 10/13/2022] [Accepted: 11/01/2022] [Indexed: 01/05/2024] Open
Abstract
PURPOSE The purpose of this study was to investigate whether ex-vivo MRI enables accurate estimation of the invasive component of lung adenocarcinoma. METHODS We retrospectively reviewed 32 patients with lung adenocarcinoma who underwent lung lobectomy. The specimens underwent MRI at 1.5T. The boundary between the lesion and the normal lung was evaluated on a 5-point scale in each three MRI sequences, and a one-way analysis of variance and post-hoc tests were performed. The invasive component size was measured histopathologically. The maximum diameter of each solid component measured on CT and MR T1-weighted (T1W) images and the maximum size obtained from histopathologic images were compared using the Wilcoxon signed-rank test. Inter-reader agreement was evaluated using intraclass correlation coefficients (ICC). RESULTS T1W images were determined to be optimal for the delineation of the lesions (P < 0.001). The histopathologic invasive area corresponded to the area where the T1W ex-vivo MR image showed a high signal intensity that was almost equal to the intravascular blood signal. The maximum diameter of the solid component on CT was overestimated compared with the maximum invasive size on histopathology (mean, 153%; P < 0.05), while that on MRI was evaluated mostly accurately without overestimation (mean, 108%; P = 0.48). The interobserver reliability of the measurements using CT and MRI was good (ICC = 0.71 on CT, 0.74 on MRI). CONCLUSION Ex-vivo MRI was more accurate than conventional CT in delineating the invasive component of lung adenocarcinoma.
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Affiliation(s)
- Daisuke Yamada
- Department of Radiology, St. Luke’s International University, Tokyo, Japan
| | - Masaki Matsusako
- Department of Radiology, St. Luke’s International University, Tokyo, Japan
| | - Daisuke Yoneoka
- Infectious Disease Surveillance Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Katsunori Oikado
- Diagnostic Imaging Center, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Hironori Ninomiya
- Division of Pathology, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Taiki Nozaki
- Department of Radiology, St. Luke’s International University, Tokyo, Japan
| | - Mitsutomi Ishiyama
- Diagnostic Imaging Center, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Akari Makidono
- Department of Diagnostic Radiology, Tokyo Metropolitan Children’s Medical Center, Fuchu, Tokyo, Japan
| | - Mizuto Otsuji
- Department of Thoracic Surgery, Tokyo Metropolitan Bokutoh Hospital, Tokyo, Japan
| | - Harumi Itoh
- Department of Radiology, Faculty of Medical Sciences, University of Fukui, Yoshida-gun, Fukui, Japan
| | - Hiroya Ojiri
- Department of Radiology, The Jikei University School of Medicine and University Hospital, Tokyo, Japan
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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.
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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
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Sato M, Waseda Y, Sonoda T, Tanizawa A, Itoh H, Kobayashi M, Takemura T, Ishizuka T. Bronchiolitis Obliterans Syndrome Post Hematopoietic Stem Cell Transplantation Diagnosed Using Ultrathin Bronchoscopy. Am J Respir Crit Care Med 2022; 206:e1-e3. [PMID: 35486846 DOI: 10.1164/rccm.202109-2073im] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Masayuki Sato
- Municipal Tsuruga Hospital, Internal Medicine, Tsuruga, Japan.,University of Fukui Faculty of Medical Sciences, 12770, Third Department of Internal Medicine, Eiheiji, Japan
| | - Yuko Waseda
- University of Fukui Faculty of Medical Sciences, 12770, Third Department of Internal Medicine, Eiheiji, Japan;
| | - Tomoaki Sonoda
- University of Fukui Faculty of Medical Sciences, 12770, Third Department of Internal Medicine, Eiheiji, Japan
| | - Akihiko Tanizawa
- University of Fukui Faculty of Medical Sciences, 12770, Department of Pediatrics, Eiheiji, Japan
| | - Harumi Itoh
- University of Fukui Faculty of Medical Sciences, 12770, Department of Radiology, Eiheiji, Japan
| | - Motohiro Kobayashi
- University of Fukui Faculty of Medical Sciences, 12770, Department of Tumor Pathology, Eiheiji, Japan
| | - Tamiko Takemura
- Kanagawa Cardiovascular and Respiratory Center, 38494, Pathology, Yokohama, Japan
| | - Tamotsu Ishizuka
- University of Fukui, Third Department of Internal Medicine, Fukui, Japan
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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).
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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
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Tsujikawa T, Umeda Y, Itoh H, Sakai T, Iwasaki H, Okazawa H, Ishizuka T, Kimura H. Radiological perspective of COVID-19 pneumonia: The early features and progressive behaviour on high-resolution CT. J Med Imaging Radiat Oncol 2021; 65:208-212. [PMID: 33491340 PMCID: PMC8013342 DOI: 10.1111/1754-9485.13139] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 11/24/2020] [Accepted: 12/03/2020] [Indexed: 12/23/2022]
Abstract
Since the outbreak of Coronavirus disease 2019 (COVID-19) in China, many researchers have reported the chest CT manifestations of COVID-19 pneumonia. High-resolution CT (HRCT) of the lung can provide important clues to understand the progressive behaviour of COVID-19 pneumonia. This pictorial essay discusses the early features and potential progressive behaviour of COVID-19 on HRCT of the lung.
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Affiliation(s)
- Tetsuya Tsujikawa
- Biomedical Imaging Research Center, University of Fukui, Fukui, Japan
| | - Yukihiro Umeda
- Third Department of Internal Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Harumi Itoh
- Department of Radiology, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Toyohiko Sakai
- Department of Radiology, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Hiromichi Iwasaki
- Division of Infection Control, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Hidehiko Okazawa
- Biomedical Imaging Research Center, University of Fukui, Fukui, Japan
| | - Tamotsu Ishizuka
- Third Department of Internal Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Hirohiko Kimura
- Department of Radiology, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
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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]
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Nogami S, J-P NA, Nogami M, Matsui T, Ngatu NR, Tamura T, Kusaka Y, Itoh H, Suganuma N. Radiographic diagnosis of Pneumoconioses by AIR Pneumo-trained physicians: Comparison with low-dose thin-slice computed tomography. J Occup Health 2020; 62:e12141. [PMID: 33176059 PMCID: PMC7384989 DOI: 10.1002/1348-9585.12141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 06/03/2020] [Accepted: 06/05/2020] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVES The Asian Intensive Reader of Pneumoconiosis (AIR Pneumo) is a training program designed to improve diagnostic skills for chest radiographies (CXRs) in accordance with the ILO/ICRP 2000. The purpose was to determine the prevalence of occupational environmental pulmonary disease findings in construction workers on thin-slice computed tomography (thin-slice CT), and to compare the diagnostic performance with CXR evaluated by AIR Pneumo-trained physicians. METHODS Ninety-seven male construction workers underwent low-dose thin-slice CT and CXR on the same day. NIOSH B reader and a board-certified radiologist each interpreted the thin-slice CTs independently. The concordant findings on thin-slice CT were established as the reference standard and were statistically compared with CXRs. Four physicians interpreted CXRs independently according to the ILO/ICRP 2000. RESULTS Of the 97 cases, nine showed irregular or linear opacities, and 44 had pleural plaques on thin-slice CT. Five, four, three, and two of nine cases with irregular opacity were detected by the four readers on CXRs, respectively. Sixteen, 14, 9, and 5 of the 44 cases with pleural plaques were detected by the four readers, respectively. Specificities for irregular opacities ranged from 94% to 100%, and those for pleural plaques were from 86% to 96%. CONCLUSIONS Thin-slice CT-detected irregular opacity was found in 9.3%, whereas pleural plaque was found in 45.4% among the construction workers. Chest radiography showed acceptable performance in classifying pneumoconiotic opacities according to ILO/ICRP 2000 by the AIR Pneumo and/or NIOSH-certified physicians.
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Affiliation(s)
- Shoko Nogami
- Department of Environmental Medicine, Kochi Medical School, Kochi University, Nankoku, Japan
| | - Naw Awn J-P
- Department of Environmental Medicine, Kochi Medical School, Kochi University, Nankoku, Japan
| | - Munenobu Nogami
- Department of Radiology, Kobe University Hospital, Kobe, Japan
| | - Tomomi Matsui
- Department of Environmental Medicine, Kochi Medical School, Kochi University, Nankoku, Japan
| | - Nlandu Roger Ngatu
- Department of Public Health, Kagawa University Faculty of Medicine, Kagawa, Japan
| | - Taro Tamura
- Fukui City Public Health Center, Fukui, Japan
| | - Yukinori Kusaka
- Department of Radiology, Faculty of Medicine, University of Fukui, Japan
| | - Harumi Itoh
- Department of Radiology, Faculty of Medicine, University of Fukui, Japan
| | - Narufumi Suganuma
- Department of Environmental Medicine, Kochi Medical School, Kochi University, Nankoku, Japan
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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
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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
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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)
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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
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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)
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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
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12
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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
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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
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13
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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
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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
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14
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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.
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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
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15
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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.
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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
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16
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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.
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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
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17
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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.
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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
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18
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Chino H, Sekine A, Baba T, Kitamura H, Iwasawa T, Okudela K, Takemura T, Itoh H, Sato S, Suzuki Y, Ogura T. Interstitial Lung Disease with Anti-melanoma Differentiation-associated Protein 5 Antibody: Rapidly Progressive Perilobular Opacity. Intern Med 2019; 58:2605-2613. [PMID: 31178482 PMCID: PMC6794190 DOI: 10.2169/internalmedicine.2328-18] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Objective Rapidly progressive interstitial lung disease (RP-ILD) with anti-melanoma differentiation-associated protein 5 (MDA5) antibody potentially presents with a fatal clinical course and requires early intensive treatment. Recently, perilobular opacity was reported to pathologically correspond to the acute phase of diffuse alveolar damage in RP-ILD with anti-MDA5 antibody. We aimed to investigate whether or not perilobular opacity was a common radiological finding in RP-ILD patients with anti-MDA5 antibody. Methods We conducted a retrospective review of the medical records of eight consecutive patients with RP-ILD with anti-MDA5 antibody. The clinical features and radiological findings of follow-up computed tomography (CT) during the course of their disease were evaluated. Results Among eight RP-ILD patients with anti-MDA-5 antibody, six showed perilobular opacity in the lower lobes, and the remaining two had only consolidation on high-resolution CT. Of note, the perilobular opacity in all six patients thickened and progressed to consolidation with a loss of lung volume in a short period. Despite intensive treatment, 6 patients (75%) died within 100 days after the first visit. Notably, the two patients with consolidation presented with a very rapid clinical course and died in 13 days each. In the two survivors, the perilobular opacity and consolidation recovered with improvement in the loss of lung volume. Conclusion Rapidly progressive perilobular opacity that thickens and progresses to consolidation is characteristic of RP-ILD with anti-MDA5 antibody. Chest physicians should immediately check the status of anti-MDA-5 antibody in order to initiate early aggressive therapy in RP-ILD patients with rapidly progressive perilobular opacity.
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Affiliation(s)
- Haruka Chino
- Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, Japan
| | - Akimasa Sekine
- Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, Japan
| | - Tomohisa Baba
- Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, Japan
| | - Hideya Kitamura
- Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, Japan
| | - Tae Iwasawa
- Department of Radiology, Kanagawa Cardiovascular and Respiratory Center, Japan
| | - Koji Okudela
- Department of Pathology, Yokohama City University Graduate School of Medicine, Japan
| | - Tamiko Takemura
- Department of Pathology, Japanese Red Cross Medical Center, Japan
| | - Harumi Itoh
- Biomedical Imaging Research Center, University of Fukui, Japan
| | - Shinji Sato
- Division of Rheumatology, Department of Internal Medicine, Tokai University School of Medicine, Japan
| | - Yasuo Suzuki
- Division of Rheumatology, Department of Internal Medicine, Tokai University School of Medicine, Japan
| | - Takashi Ogura
- Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, Japan
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19
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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
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20
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Im JG, Itoh H. Tree-in-Bud Pattern of Pulmonary Tuberculosis on Thin-Section CT: Pathological Implications. Korean J Radiol 2018; 19:859-865. [PMID: 30174474 PMCID: PMC6082770 DOI: 10.3348/kjr.2018.19.5.859] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Accepted: 03/18/2018] [Indexed: 11/24/2022] Open
Abstract
The “tree-in-bud-pattern” of images on thin-section lung CT is defined by centrilobular branching structures that resemble a budding tree. We investigated the pathological basis of the tree-in-bud lesion by reviewing the pathological specimens of bronchograms of normal lungs and contract radiographs of the post-mortem lungs manifesting active pulmonary tuberculosis. The tree portion corresponds to the intralobular inflammatory bronchiole, while the bud portion represents filling of inflammatory substances within alveolar ducts, which are larger than the corresponding bronchioles. Inflammatory bronchiole per se represents the “tree” (stem) and inflammatory alveolar ducts constitute the “buds” or clubbing. “Clusters of micronodules”, seen on 7-mm thick post-mortem radiographs with tuberculosis proved to be clusters of tree-in-bud lesions within the three-dimensional space of secondary pulmonary lobule based on radiological/pathological correlation. None of the post-mortem lung specimens showed findings of lung parenchymal lymphatics involvement.
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Affiliation(s)
- Jung-Gi Im
- Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea.,Department of Radiology, Samsung Medical Center, Seoul 06351, Korea
| | - Harumi Itoh
- University of Fukui, School of Medical Sciences, Bunkyo, Fukui-shi, Fukui 910-8507, Japan
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21
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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
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22
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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
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23
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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.
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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
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24
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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
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25
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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
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26
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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.
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27
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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.
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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.
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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.
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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
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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
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30
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Ozawa J, Ohno S, Watanabe H, Makiyama T, Suzuki H, Saitoh A, Itoh H, Horie M. P1701Clinical and genetic characteristics of Brugada syndrome in children based on a school-based electrocardiographic screening program in Japan. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1701] [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: 11/12/2022] Open
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31
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Fukumoto D, Ohno S, Wada Y, Fujii Y, Ichikawa M, Takayama K, Fukuyama M, Makiyama T, Itoh H, Ding W, Matsuura H, Horie M. 972Novel intracellular transport-refractory mutations in KCNH2 identified in symptomatic long QT syndrome patients. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.972] [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: 11/12/2022] Open
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32
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Takayama K, Ohno S, Fukumoto D, Wada Y, Ichikawa M, Fukuyama M, Itoh H, Horie M. 1218Double mutations in RYR2 cause severe phenotype of catecholaminergic polymorphic ventricular tachycardia. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.1218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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33
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Yagi T, Chiba S, Itoh H, Ozone M. 0773 INTERRATER RELIABILITY FOR SLEEP STAGE SCORING FROM ELEVEN JAPANESE LABORATORIES. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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34
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Oda T, Itoh H, Kawai K, Oda-Kishimoto A, Kobayashi T, Doi T, Uchida T, Kanayama N. Three successful deliveries involving a woman with congenital afibrinogenaemia - conventional fibrinogen concentrate infusion vs. ‘as required’ fibrinogen concentrate infusion based on changes in fibrinogen clearance -. Haemophilia 2016; 22:e478-81. [DOI: 10.1111/hae.13054] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/27/2016] [Indexed: 11/30/2022]
Affiliation(s)
- T. Oda
- Department of Obstetrics and Gynecology; Hamamatsu University School of Medicine; Hamamatsu Japan
- Department of Obstetrics and Gynecology; Fujinomiya City General Hospital; Fujinomiya Japan
| | - H. Itoh
- Department of Obstetrics and Gynecology; Hamamatsu University School of Medicine; Hamamatsu Japan
| | - K. Kawai
- Department of Obstetrics and Gynecology; Hamamatsu University School of Medicine; Hamamatsu Japan
| | - A. Oda-Kishimoto
- Department of Obstetrics and Gynecology; Hamamatsu University School of Medicine; Hamamatsu Japan
| | - T. Kobayashi
- Department of Obstetrics and Gynecology; Hamamatsu Medical Center; Hamamatsu Japan
| | - T. Doi
- Department of Obstetrics and Gynecology; Fujinomiya City General Hospital; Fujinomiya Japan
| | - T. Uchida
- Department of Obstetrics and Gynecology; Hamamatsu University School of Medicine; Hamamatsu Japan
| | - N. Kanayama
- Department of Obstetrics and Gynecology; Hamamatsu University School of Medicine; Hamamatsu Japan
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35
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Yoshizaki K, Song S, Itoh H, Iwahashi M, Uno K. SAT0144 Soluble Form of GP130 Molecule, An IL-6 Inhibitor, Contributes The Efficacy on RA To Tocilizumab (An Anti-IL-6 Receptor Antibody) Therapy. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3891] [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: 11/04/2022]
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36
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Morikawa M, Fukuda Y, Terasaki Y, Itoh H, Demura Y, Sasaki M, Imamura Y, Honjo C, Umeda Y, Anzai M, Ameshima S, Ishizaki T, Ishizuka T. Osteogenesis Imperfecta Associated with Dendriform Pulmonary Ossification. Am J Respir Crit Care Med 2016; 193:460-1. [DOI: 10.1164/rccm.201505-0942im] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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37
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Chino H, Sekine A, Baba T, Iwasawa T, Okudela K, Takemura T, Itoh H, Sato S, Suzuki Y, Ogura T. Radiological and Pathological Correlation in Anti-MDA5 Antibody-positive Interstitial Lung Disease: Rapidly Progressive Perilobular Opacities and Diffuse Alveolar Damage. Intern Med 2016; 55:2241-6. [PMID: 27523002 DOI: 10.2169/internalmedicine.55.5774] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We herein present the first case of rapidly progressive interstitial lung disease (RP-ILD) with anti-melanoma differentiation-associated protein 5 (MDA5) antibody evaluated by surgical lung biopsy (SLB). High-resolution CT scan revealed perilobular opacities, which rapidly became thicker and formed consolidation, resulting in remarkable loss of lung volume. Specimens taken from SLB revealed membranous organization with alveolar occlusion, dilation of alveolar ducts, and sacs with collapsed alveoli, which are typical features of diffuse alveolar damage (DAD). Rapidly progressive perilobular opacities may be characteristic of RP-ILD with anti-MDA5 antibody and DAD.
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Affiliation(s)
- Haruka Chino
- Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, Japan
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Yamadera W, Morita M, Osaku E, Kuroda A, Obuchi K, Itoh H, Nakayama K. Clinical study of escitalopram monotherapy for major depressive disorder with insomnia. Sleep Med 2015. [DOI: 10.1016/j.sleep.2015.02.1391] [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]
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39
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Aoki R, Kobayashi N, Yamadera W, Iwashita M, Kondo K, Itoh H, Nakayama K. Assessment of fatigue in obstructive sleep apnea by using salivary human herpes virus (HHV)-6 and HHV-7 reactivation as a biomarker. Sleep Med 2015. [DOI: 10.1016/j.sleep.2015.02.1435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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40
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Suzuki Y, Fujioka T, Sato F, Matsumoto K, Muraya N, Tanaka R, Sato Y, Ohno K, Mimata H, Kishino S, Itoh H. CYP3A5 Polymorphism affects the increase in CYP3A activity after living Kidney transplantation in patients with end stage renal disease. Clin Ther 2015. [DOI: 10.1016/j.clinthera.2015.05.152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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41
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Tanaka R, Suzuki Y, Imafuku T, Sato F, Ishima Y, Sato Y, Watanabe H, Maruyama T, Mimata H, Itoh H. Characterization of The Structure of Human Serum Albumin In Patients With End Stage Renal Disease After Kidney Transplantation. Clin Ther 2015. [DOI: 10.1016/j.clinthera.2015.05.171] [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: 10/23/2022]
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Naito T, Kubono N, Ishida T, Deguchi S, Sugihara M, Itoh H, Kanayama N, Kawakami J. Relationship Between Amlodipine Pharmacokinetics And Cyp3a Activity In Lactating Women With Pregnancy-Induced Hypertension. Clin Ther 2015. [DOI: 10.1016/j.clinthera.2015.05.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Takahashi T, Yamada S, Tanabe K, Nakayama M, Osada N, Itoh H, Murayama M. The effects of posture on the ventilatory responses during exercise. J Jpn Phys Ther Assoc 2015; 1:13-7. [PMID: 25792876 DOI: 10.1298/jjpta.1.13] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/1997] [Accepted: 12/20/1997] [Indexed: 11/23/2022]
Abstract
This study was undertaken to evaluate the postural effect on ventilatory responses during both supine and sitting exercise. Seven healthy men performed two exercise tests utilizing the ramp protocol (20 watts/min) with a cycle ergometer in each position. The results were as follows: The oxygen uptake and the oxygen pulse measured at 180 watts and at anaerobic threshold in the sitting were significantly higher compared with those in the supine position. The average of carbon-dioxide output, minute ventilation and tidal volume at lower exercise intensities showed higher values in the sitting compared with those in the supine position, whereas there were no significant differences for respiratory rate. There was significant difference in the slope of the minute ventilation to carbon-dioxide output plot between sitting and supine position. In conclusion, the higher minute ventilation in the sitting position was mainly performed by higher tidal volume which may counteract the effects of an increase in physiological dead space. The lower slope of the minute ventilation to carbon-dioxide output plot which shows more effective ventilation in the supine position may be due to decreased physiological dead space and higher diffusion capacity.
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Affiliation(s)
- T Takahashi
- Dept. of Rehabilitation Medicine, St. Marianna University School of Medicine Hospital, Kanagawa-ken 216, Japan
| | - S Yamada
- Dept. of Rehabilitation Medicine, St. Marianna University School of Medicine Hospital, Kanagawa-ken 216, Japan
| | - K Tanabe
- Dept. of 2nd Internal Medicine, St. Marianna University School of Medicine, Kanagawa-ken 216, Japan
| | - M Nakayama
- Dept. of 2nd Internal Medicine, St. Marianna University School of Medicine, Kanagawa-ken 216, Japan
| | - N Osada
- Dept. of 2nd Internal Medicine, St. Marianna University School of Medicine, Kanagawa-ken 216, Japan
| | - H Itoh
- Dept. of 2nd Internal Medicine, St. Marianna University School of Medicine, Kanagawa-ken 216, Japan
| | - M Murayama
- Dept. of 2nd Internal Medicine, St. Marianna University School of Medicine, Kanagawa-ken 216, Japan
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Takahashi T, Yamada S, Tanabe K, Izawa K, Itoh H, Murayama M. Cardiopulmonary responses at various angles of cycle backrest inclination. J Jpn Phys Ther Assoc 2015; 2:31-6. [PMID: 25792911 DOI: 10.1298/jjpta.2.31] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/1998] [Accepted: 01/30/1999] [Indexed: 11/23/2022]
Abstract
The purpose of this study was to evaluate cardiopulmonary responses during submaximal cycle exercise at various angles of backrest inclination. Ten healthy Japanese men of mean age 25.9 yrs, height 170.6 cm, and body mass 66.1 kg, performed cycle exercises at a constant workload which reached the anaerobic threshold, at 20 degrees, 40 degrees, and 60 degrees of backrest inclination from the vertical plane, but the angle between the seat and back rest was kept at 110 degrees. The results were as follows: 1) Both cardiac output and stroke volume showed a higher value at the resting control state and during exercise as the backrest angle increased. 2) Oxygen consumption, carbon dioxide output, heart rate, gas exchange ratio, and oxygen pulse were not affected by the angle of backrest inclination. 3) Tidal volume at 20 degrees of backrest inclination was higher than at 60 degrees. 4) No significant differences were found in minute ventilation between each backrest angle. These findings suggest that changes in the backrest angle significantly alter cardiopulmonary parameters at rest and during exercise; in particular, an angle difference of 40 degrees may be enough to alter tidal volume, cardiac output and stroke volume, but not the minute ventilation.
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Affiliation(s)
- T Takahashi
- Department of Rehabilitation Medicine, St. Marianna University School of Medicine Hospital, Kanagawa-ken 216, Japan
| | - S Yamada
- Department of Rehabilitation Medicine, St. Marianna University School of Medicine Hospital, Kanagawa-ken 216, Japan
| | - K Tanabe
- Department of 2nd Internal Medicine, St. Marianna University School of Medicine, Kanagawa-ken 216, Japan
| | - K Izawa
- Department of Rehabilitation Medicine, St. Marianna University School of Medicine Hospital, Kanagawa-ken 216, Japan
| | - H Itoh
- Department of 2nd Internal Medicine, St. Marianna University School of Medicine, Kanagawa-ken 216, Japan
| | - M Murayama
- Department of 2nd Internal Medicine, St. Marianna University School of Medicine, Kanagawa-ken 216, Japan
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Itoh H, Maeda H, Yamada S, Hori Y, Mino T, Sakamoto M. Correction: Highly selective aluminium-catalysed intramolecular Prins reaction for l-menthol synthesis. RSC Adv 2015. [DOI: 10.1039/c5ra90068a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Correction for ‘Highly selective aluminium-catalysed intramolecular Prins reaction for l-menthol synthesis’ by H. Itoh et al., RSC Adv., 2014, 4, 61619–61623.
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Affiliation(s)
- H. Itoh
- Taksasago International Corporation 4-11
- Hiratsuka City
- Japan
- Department of Applied Chemistry and Biotechnology
- Graduate School of Engineering
| | - H. Maeda
- Taksasago International Corporation 4-11
- Hiratsuka City
- Japan
| | - S. Yamada
- Taksasago International Corporation 4-11
- Hiratsuka City
- Japan
| | - Y. Hori
- Taksasago International Corporation 4-11
- Hiratsuka City
- Japan
| | - T. Mino
- Department of Applied Chemistry and Biotechnology
- Graduate School of Engineering
- Chiba University
- Chiba 263-8522
- Japan
| | - Masami Sakamoto
- Department of Applied Chemistry and Biotechnology
- Graduate School of Engineering
- Chiba University
- Chiba 263-8522
- Japan
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Matsuo H, Kajihara M, Tomizawa D, Watanabe T, Saito AM, Fujimoto J, Horibe K, Kodama K, Tokumasu M, Itoh H, Nakayama H, Kinoshita A, Taga T, Tawa A, Taki T, Tanaka S, Adachi S. Prognostic implications of CEBPA mutations in pediatric acute myeloid leukemia: a report from the Japanese Pediatric Leukemia/Lymphoma Study Group. Blood Cancer J 2014; 4:e226. [PMID: 25014773 PMCID: PMC4219441 DOI: 10.1038/bcj.2014.47] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2014] [Accepted: 05/19/2014] [Indexed: 11/30/2022] Open
Abstract
CCAAT/enhancer-binding protein alpha (CEBPA) mutations are a favorable prognostic factor in adult acute myeloid leukemia (AML) patients; however, few studies have examined their significance in pediatric AML patients. Here we examined the CEBPA mutation status and clinical outcomes of pediatric AML patients treated in the AML-05 study. We found that 47 (14.9%) of the 315 evaluable patients harbored mutations in CEBPA; 26 cases (8.3%) harbored a single mutation (CEBPA-single) and 21 (6.7%) harbored double or triple mutations (CEBPA-double). After excluding core-binding factor-AML cases, patients harboring CEBPA mutations showed better overall survival (OS; P=0.048), but not event-free survival (EFS; P=0.051), than wild-type patients. Multivariate analysis identified CEBPA-single and CEBPA-double as independent favorable prognostic factors for EFS in the total cohort (hazard ratio (HR): 0.47 and 0.33; P=0.02 and 0.01, respectively). CEBPA-double was also an independent favorable prognostic factor for OS (HR: 0.30; P=0.04). CEBPA-double remained an independent favorable factor for EFS (HR: 0.28; P=0.04) in the normal karyotype cohort. These results suggest that CEBPA mutations, particularly CEBPA-double, are an independent favorable prognostic factor in pediatric AML patients, which will have important implications for risk-stratified therapy.
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Affiliation(s)
- H Matsuo
- Department of Human Health Sciences, Kyoto University, Kyoto, Japan
| | - M Kajihara
- Department of Human Health Sciences, Kyoto University, Kyoto, Japan
| | - D Tomizawa
- Department of Pediatrics, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - T Watanabe
- Department of Nutritional Science, Aichi Gakuin University, Aichi, Japan
| | - A M Saito
- Clinical Research Center, National Hospital Organization Nagoya Medical Center, Aichi, Japan
| | - J Fujimoto
- Clinical Research Center, National Center for Child Health and Development, Tokyo, Japan
| | - K Horibe
- Clinical Research Center, National Hospital Organization Nagoya Medical Center, Aichi, Japan
| | - K Kodama
- Department of Human Health Sciences, Kyoto University, Kyoto, Japan
| | - M Tokumasu
- Department of Pediatrics, Kyoto University, Kyoto, Japan
| | - H Itoh
- Department of Human Health Sciences, Kyoto University, Kyoto, Japan
| | - H Nakayama
- Department of Pediatrics, National Hospital Organization Fukuoka-Higashi Medical Center, Fukuoka, Japan
| | - A Kinoshita
- Department of Pediatrics, St Marianna University School of Medicine, Kanagawa, Japan
| | - T Taga
- Department of Pediatrics, Shiga University of Medical Science, Shiga, Japan
| | - A Tawa
- Department of Pediatrics, National Hospital Organization Osaka Medical Hospital, Osaka, Japan
| | - T Taki
- Department of Molecular Diagnostics and Therapeutics, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - S Tanaka
- Department of Pharmacoepidemiology, Kyoto University, Kyoto, Japan
| | - S Adachi
- Department of Human Health Sciences, Kyoto University, Kyoto, Japan
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Abstract
Abstract
The interaction of Ni and Cu atoms with PF3 and CO ligands was investigated by means of ab initio MO calculations. Coupling occurs mainly through the HOMO (8a1 for PF3 and 5 a for CO) levels with the metal 4s and 3dz2 orbitals, if the 3dn-1 4s1 electronic configuration of the metal atom is considered. The estimated M-PF3 bond lengths are 2.0 Å for Ni and 2.5 Å for Cu. Calculations with Ni(3d10) revealed for PF3 a more pronounced electron transfer to the ligand than for CO. The results are consistent with experimental UPS data for mononuclear complexes as well as corresponding adsorption systems. In particular, split-off d-states observed in UPS data for adsorbed PF3 are attributed to the pronounced lowering of the 3d-orbital energy of the metal atom upon interaction with this electropositive ligand.
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Affiliation(s)
- H. Itoh
- Institut für Physikalische Chemie, Universität München
- Present address: Department of Chemistry, University of Chicago, Chicago, I11. 60637, USA
| | - G. Ertl
- Institut für Physikalische Chemie, Universität München
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Katayama Y, Terao T, Kamei K, Hatano K, Kohno K, Makino M, Mizokami Y, Kodama K, Itoh H. Therapeutic Window of Lamotrigine for Mood Disorders: A Naturalistic Retrospective Study. Pharmacopsychiatry 2014; 47:111-4. [DOI: 10.1055/s-0034-1375618] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Y. Katayama
- Department of Neuropsychiatry, Oita University Faculty of Medicine, Yufu, Japan
| | - T. Terao
- Department of Neuropsychiatry, Oita University Faculty of Medicine, Yufu, Japan
| | - K. Kamei
- Department of Neuropsychiatry, Oita University Faculty of Medicine, Yufu, Japan
| | - K. Hatano
- Department of Neuropsychiatry, Oita University Faculty of Medicine, Yufu, Japan
| | - K. Kohno
- Department of Neuropsychiatry, Oita University Faculty of Medicine, Yufu, Japan
| | - M. Makino
- Department of Neuropsychiatry, Oita University Faculty of Medicine, Yufu, Japan
| | - Y. Mizokami
- Department of Neuropsychiatry, Oita University Faculty of Medicine, Yufu, Japan
| | - K. Kodama
- Department of Neuropsychiatry, Oita University Faculty of Medicine, Yufu, Japan
| | - H. Itoh
- Department of Clinical Pharmacy, Oita University Faculty of Medicine, Yufu, Japan
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Wang XH, Hu L, Klein JD, Minakuchi H, Wakino S, Hosoya K, Yoshifuji A, Hayashi K, Itoh H, Tanaka T, Higashijima Y, Tanaka S, Yamaguchi J, Nangaku M, Martino F, Kielstein J, Bang C, Thum T, Lorenzen J, Stokman G, El-Hachioui M, Florquin S, Pap D, Himer L, Szebeni B, Sziksz E, Riedl Z, Iwakura Y, Nagy Szakal D, Kis E, Onody A, Veres-Szekely A, Javorszky E, Koszegi S, Fekete A, A. Brandt F, Reusz G, Tulassay T, Vannay A. TISSUE INJURY AND REPAIR. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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50
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Yoshifuji A, Wakino S, Irie J, Minakuchi H, Hasegawa K, Tokuyama H, Hayashi K, Itoh H, Xu H, Huang X, Riserus U, Cederholm T, Arnlov J, Sjogren P, Lindholm B, Carrero JJ, Poesen R, Windey K, Evenepoel P, De Preter V, Verbeke K, Meijers B, De Roij Van Zuijdewijn CL, Nube MJ, Bots ML, Blankestijn PJ, Van Den Dorpel MA, Ter Wee PM, Grooteman MP, Poesen R, Windey K, Masereeuw R, Van Den Broek PH, Evenepoel P, Meijers B, Verbeke K. CKD NUTRITION. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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