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Kuyama S, Yoshioka H, Kaneda H, Kataoka Y, Miura S, Katakami N, Yamanaka Y, Tamiya A, Yamada T, Yokoyama T, Hara S, Tanaka H, Fujisaka Y, Nakamura A, Azuma K, Namba M, Hata A, Sawa K, Ishikawa H, Kurata T. 330P A real-world multi-center prospective observational study of atezolizumab (Atezo) + bevacizumab (Bev) + carboplatin (CBDCA) + paclitaxel (PTX) (ABCP) in patients (pts) with advanced EGFR-mutated (EGFRm) NSCLC after EGFR-TKIs failure. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
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Ohkuchi A, Suzuki H, Matsubara K, Watanabe K, Saitou T, Oda H, Obata S, Kondo S, Noda K, Miyoshi J, Ikenoue S, Nomiyama M, Seki H, Sukegawa S, Ichigo S, Ando H, Fuseya C, Shimomura T, Suzuki R, Mimura K, Yasuhi I, Fukuda M, Hara S, Kurashina R, Shiozaki A, Matsubara S, Saito S. Exponential increase of the gestational-age-specific incidence of preeclampsia onset (COPE study): a multicenter retrospective cohort study in women with maternal check-ups at <20 weeks of gestation in Japan. Hypertens Res 2022; 45:1679-1689. [DOI: 10.1038/s41440-022-01013-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 08/08/2022] [Accepted: 08/13/2022] [Indexed: 11/09/2022]
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Tokito T, Hata A, Hara S, Tachihara M, Okada H, Tanaka H, Sato Y, Tabata E, Watanabe H, Takayama Y, Toyozawa R, Okamoto I, Wakuda K, Nakamura A, Shimokawa M, Yamamoto N, Nakagawa K. 1025P DOcetaxel (DOC) plus RAmucirumab (RAM) with pegylated Granulocyte-colONy stimulating factor (PEG-G-CSF) for elderly patients with advanced non-small cell lung cancer (NSCLC): A phase II trial (DRAGON study: WJOG9416L). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1151] [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: 11/01/2022] Open
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Tsuge S, Fujii H, Tamai M, Mizushima I, Yoshida M, Suzuki N, Takahashi Y, Takeji A, Horita S, Fujisawa Y, Matsunaga T, Zoshima T, Nishioka R, Nuka H, Hara S, Tani Y, Suzuki Y, Ito K, Yamada K, Nakazaki S, Kawakami A, Kawano M. POS1339 FACTORS RELATED TO SERUM IgG4 ELEVATION AND DEVELOPMENT OF IgG4-RELATED DISEASE: DATA FROM RESIDENT EXAMINATION. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.2028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundElevated serum IgG4 levels are one of the characteristic findings in immunoglobulin G4 (IgG4)-related disease (IgG4-RD). Serum IgG4 levels have an impact to a certain extent on the diagnosis of IgG4-RD although there are some issues in their sensitivity and specificity. In the reports from Japan, China, USA, and Europe, elevated serum IgG4 levels were reported to be observed in 83-97% of patients with IgG4-RD [1-5]. In the past investigations of hospital patients, some studies reported that 10-15% of hospital patients with elevated serum IgG4 levels had IgG4-RD [6,7]. However, in general adults with no symptom, investigations of prevalence of elevated serum IgG4 levels and/or IgG4-RD have rarely been conducted.ObjectivesThis study aimed to investigate the frequency of serum IgG4 elevation in the general Japanese population and its associated factors using data from resident examinations.MethodsWe measured the serum IgG4 levels in 1,204 residents who underwent a general medical examination in Ishikawa prefecture, Japan. Logistic regression analysis was used to search for factors related to elevated serum IgG4 levels. Secondary examinations were conducted for participants in whom elevation was identified.ResultsThe mean serum IgG4 level was 44 mg/dL, and elevated serum IgG4 levels were observed in 42 patients (3.5%). Univariate logistic regression analyses showed that male sex, older age, lower estimated glomerular filtration rates based on cystatin C (eGFR-CysC), serum high-density lipoprotein cholesterol levels, and higher hemoglobin A1c (HbA1c) levels were associated with elevated serum IgG4 levels. Subgroup analyses in men showed that older age, lower eGFR-CysC levels, and higher serum HbA1c levels were associated with elevated serum IgG4 levels. In contrast, the analyses in women found no significant factors. One of the 10 residents who underwent secondary examinations was diagnosed with possible IgG4-related retroperitoneal fibrosis.ConclusionIn the general population, elevated serum IgG4 levels are more common in elderly men, which is similar to the epidemiological features of IgG4-RD.References[1]Inoue D, et al. IgG4-related disease: dataset of 235 consecutive patients. Medicine (Baltimore). 2015;94(15):e680.[2]Yamada K, et al. New clues to the nature of immunoglobulin G4-related disease: a retrospective Japanese multicenter study of baseline clinical features of 334 cases. Arthritis Res Ther. 2017;19(1):262[3]Culver EL, et al. Elevated serum IgG4 levels in diagnosis, treatment response, organ involvement, and relapse in a prospective IgG4-related disease UK cohort. Am J Gastroenterol 2016;111:733–43.[4]Lin W, et al. Clinical characteristics of immunoglobulin G4-related disease: a prospective study of 118 Chinese patients. Rheumatology (Oxford). 2015;54(11):1982–90.[5]Carruthers MN, et al. The diagnostic utility of serum IgG4 concentrations in IgG4-related disease. Ann Rheum Dis 2015;74:14-18.[6]James Yun, et al. Poor positive predictive value of serum immunoglobulin G4 concentrations in the diagnosis of immunoglobulin G4-related sclerosing disease. Asia Pac Allergy. 2014 Jul;4(3):172-176.[7]Taiwo N Ngwa, et al. Sreum immunoglobulin G4 level is a poor predictor of immunoglobulin G4–related disease. Pancreas. 2014 Jul;43(5):704-7.Disclosure of InterestsNone declared
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Kasuga Y, Ikenoue S, Nishio H, Yamagami W, Ochiai D, Tanabe K, Tashima Y, Hirao N, Miyakoshi K, Kasai K, Suda Y, Nemoto T, Shiraishi S, Yoshida H, Kurahashi T, Takamatsu K, Iwasaki S, Yamashita H, Akiba Y, Arase T, Hara S, Nakada S, Tanaka M, Aoki D. Adenocarcinoma in situ or early-stage cervical cancer is a risk factor for preterm delivery after cervical conization: a multicenter observational study. J Matern Fetal Neonatal Med 2022; 35:9837-9842. [PMID: 35341455 DOI: 10.1080/14767058.2022.2056835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE Pregnancy after conization is associated with a high risk of preterm delivery. However, because risk factors for preterm delivery after conization remain unknown, we conducted a multicenter observational study to investigate risk factors associated with preterm delivery. METHODS We selected patients who had previously undergone conization and reviewed medical records from 18 hospitals in cooperation with Keio University School of Medicine between January 2013 and December 2019. Women were classified as nulliparous and primiparous, and a multiple logistic regression analysis was performed to evaluate the relative contributions of the various maternal risk factors for preterm delivery (i.e. delivery before 37 gestational weeks). RESULTS Among 409 pregnant women after conization, 68 women delivered preterm (17%). The incidence of nulliparity (p = .014) was higher and a history of preterm delivery (p = .0010) was more common in the preterm delivery group than in the term delivery group. Furthermore, the proportion of women diagnosed with adenocarcinoma in situ (AIS) and cervical cancer in the preterm delivery group was higher than that in the term delivery group (p = .0099 and .0004, respectively). In multiple regression models in nulliparous women, cervical cancer or AIS (Odds ratio [OR]: 4.16, 95% CI: 1.26-13.68, p = .019) and a short cervix in the second trimester (OR: 13.41, 95% CI: 3.88-46.42, p < .0001) increased the risk of preterm delivery. Furthermore, a history of preterm delivery (OR: 7.35, 95% CI: 1.55-34.86, p = .012), cervical cancer or AIS (OR: 5.07, 95% CI: 1.24-20.73, p = .024), and a short cervix in the second trimester (OR: 4.29, 95% CI: 1.11-16.62, p = .035) increased the risk of preterm delivery in the multiple regression models in primiparous women. CONCLUSION Pregnant women who previously underwent conization are at risk for preterm delivery. The histological type of AIS and cervical cancer was evaluated as a risk factor for preterm delivery. KEY MESSAGESPrior preterm delivery, presence of a short cervix, and cervical cancer or AIS were predictors of preterm delivery after conization.The depth of conization in cervical cancer or AIS group was significantly larger than that in the CIN group.
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Affiliation(s)
- Yoshifumi Kasuga
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - Satoru Ikenoue
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - Hiroshi Nishio
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - Wataru Yamagami
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - Daigo Ochiai
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - Kiyoo Tanabe
- Department of Obstetrics and Gynecology, Nerima General Hospital, Tokyo, Japan
| | - Yasuhiro Tashima
- Department of Obstetrics and Gynecology, Hino Municipal Hospital, Tokyo, Japan
| | - Nobumaru Hirao
- Department of Obstetrics and Gynecology, Federation of National Public Service Personnel Mutual Aid Associations, Tachikawa Hospital, Tokyo, Japan
| | - Kei Miyakoshi
- Department of Obstetrics and Gynecology, Seibo Hospital, Tokyo, Japan
| | - Kenji Kasai
- Department of Obstetrics and Gynecology, Hiratsuka City Hospital, Hiratsuka-shi, Japan
| | - Yoshio Suda
- Department of Obstetrics and Gynecology, Japanese Red Cross Ashikaga Hospital, Ashikaga-shi, Japan
| | - Taiko Nemoto
- Department of Obstetrics and Gynecology, Japanese Red Cross Shizuoka Hospital, Shizuoka-shi, Japan
| | - Satoru Shiraishi
- Department of Obstetrics and Gynecology, Japanese Red Cross Nasu Hospital, Ootawara-shi, Japan
| | - Hiroyuki Yoshida
- Department of Obstetrics and Gynecology, Ogikubo Hospital, Tokyo, Japan
| | - Takashi Kurahashi
- Department of Obstetrics and Gynecology, National Hospital Organization Saitama Hospital, Wakou-shi, Japan
| | - Kiyoshi Takamatsu
- Department of Obstetrics and Gynecology, Tokyo Dental College Ichikawa General Hospital, Ichikawa-shi, Japan
| | - Shinya Iwasaki
- Department of Obstetrics and Gynecology, Shizuoka City Shimizu Hospital, Shizuoka-shi, Japan
| | - Hiroshi Yamashita
- Department of Obstetrics and Gynecology, Tokyo Medical Center, Tokyo, Japan
| | - Yasuo Akiba
- Department of Obstetrics and Gynecology, Saiseikai Yokohama-shi Tobu Hospital, Yokohama-shi, Japan
| | - Toru Arase
- Department of Obstetrics and Gynecology, Keiyu Hospital, Yokohama-shi, Japan
| | - Sumiko Hara
- Department of Obstetrics and Gynecology, Tokyo Adventist Hospital, Tokyo, Japan
| | - Sakura Nakada
- Department of Obstetrics and Gynecology, Kawasaki Municipal Kawasaki Hospital, Kawasaki, Japan
| | - Mamoru Tanaka
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - Daisuke Aoki
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
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Tsuge S, Mizushima I, Shin S, Yoshinobu T, Hoshiba R, Nishioka R, Zoshima T, Hara S, Suzuki Y, Ito K, Kawano M. AB0760 HIGH SERUM IGA LEVELS HAVE LIMITED CLINICAL SIGNIFICANCE IN PATIENTS WITH IGG4-RELATED DISEASE DIAGNOSED BY EXPERTS. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:While the diagnostic and classification criteria for IgG4-related disease (IgG4-RD) have been recently developed [1-3], it is known that, without appropriate exclusions, some non-IgG4-RDs may meet these criteria. In particular, hyper IL-6 syndromes, including Castleman disease, can be misdiagnosed as IgG4-RD. Some clinical findings, including elevated serum levels of C-reactive protein (CRP) or IgA, have been suggested to be useful for differentiating hyper IL-6 syndromes from IgG4-RD [4]. However, since few clinical studies have focused on IgG4-RD with high serum IgA levels, its clinical significance has not been well known.Objectives:This study aimed to clarify the clinical significance of high serum IgA levels in patients with IgG4-RD.Methods:We retrospectively investigated the clinical features of 170 patients with IgG4-RD on the basis of the presence or absence of elevated serum IgA levels (>410 mg/dL) at the time of diagnosis. The diagnosis of IgG4-RD was made by experts on the basis of the fulfillment of the comprehensive diagnostic criteria and/or each organ-specific diagnostic criteria.Results:Elevated serum IgA levels were observed in 18 patients (10.6%). In the patients with elevated serum IgA levels, serum CRP levels were higher (1.14 ± 1.18 vs. 0.31 ± 0.63 mg/dL, p=0.003) and the prevalence of relapse during the clinical course was lower (5.6% vs. 27.6%, p=0.046) than in those without elevated serum IgA levels. However, there were no significant differences in the other clinical features including the number of involved organs (2.4 ± 1.3 vs. 2.8 ± 1.6, p=0.443) and inclusion scores of the ACR/EULAR classification criteria (32 ± 14 vs. 36 ± 17, p=0.374). To evaluate the influence of serum IgA elevation on relapse, we performed Cox regression analysis, which showed that the elevated serum IgA levels had no significant association with lower incidence of relapse but a tendency of it (hazard ratio 0.997, 95% confidence interval 0.994-1.000, p=0.055) during the clinical course. In addition, a prompt improvement in the IgG4-RD responder index [5] during the clinical course was seen in the patients with serum IgA elevation, suggesting a similar good response to glucocorticoids as in those without it.Conclusion:The findings of the present study suggest that IgG4-RD patients with high serum IgA levels can be diagnosed and treated in the same way as those without it, although they may be characterized by mild serum CRP elevation.References:[1]Wallace ZS et al. The 2019 American College of Rheumatology/European League Against Rheumatism classification criteria for IgG4-related disease. Ann Rheum Dis. 2020;79:77-87.[2]Umehara H et al. The 2020 Revised Comprehensive Diagnostic (RCD) Criteria for IgG4-RD. Mod Rheumatol. 2020 Dec 4:1-14. doi: 10.1080/14397595.2020.1859710. Online ahead of print.[3]Umehara H et al. Current approach to the diagnosis of IgG4-related disease - Combination of comprehensive diagnostic and organ - specific criteria. Mod Rheumatol. 2017;27:381-91.[4]Sato Y et al. Systemic IgG4-related lymphadenopathy: A clinical and pathologic comparison to multicentric Castleman’s disease. Mod Pathol.2009;22:589-99.[5]Carruthers MN et al. Development of an IgG4-RD Responder Index. Int J Rheumatol. 2012;2012:259408.Disclosure of Interests:None declared
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Mizushima I, Kawahara H, Yoshinobu T, Shin S, Hoshiba R, Nishioka R, Zoshima T, Hara S, Suzuki Y, Ito K, Kawano M. POS1348 MORTALITY AND ITS RELATED FACTORS IN PATIENTS WITH IGG4-RELATED DISEASE: A JAPANESE SINGLE-CENTER STUDY. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.1798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:In recent years, IgG4-related disease (IgG4-RD) has become a widely recognized disorder. However, mortality and its related factors in this disease are not well known.Objectives:This study aimed to clarify mortality and its related factors in patients with IgG4-RD.Methods:We retrospectively reviewed the medical records of patients with IgG4-RD diagnosed by experts based on fulfillment of the Japanese comprehensive diagnostic criteria and/or the 2019 ACR/EULAR classification criteria for IgG4-RD at a single center in Japan. Using the collected data, we calculated the crude mortality rate and the standardized mortality ratio (SMR) using national Japan mortality statistics and investigated the cause of death. We performed Cox regression analyses to assess mortality-related factors.Results:A total of 179 patients with IgG4-RD were included: 124 were male (69.3%); the median age was 68 years (interquartile range [IQR] 60-75 years); and the median follow-up from diagnosis was 47 months (IQR 17-84). Ten patients (5.6%) in our cohort died during the follow-up period. Five died of malignancy, one of respiratory failure, two of infectious pneumonia, one of sudden cardiac event, and one of suspected aortic aneurysmal rupture. The crude mortality rate was 11.1 per 1,000 person-years. According to national Japan mortality statistics, 11.6 age- and sex-matched deaths were expected to occur within the follow-up period, resulting in a SMR of 0.86 (95% confidence interval [CI] 0.41-1.59). Univariate Cox regression analyses indicated that the number of affected organs at diagnosis (hazard ratio [HR] 1.45, 95% CI 1.02-2.05), serum creatinine levels at diagnosis (HR 1.82, 95% CI 1.06-3.12), and the presence of malignancy during the clinical course (HR 3.93, 95% CI 1.10-14.02) had a significant impact on the time to death, whereas the other factors including age at diagnosis and serum C-reactive protein and IgG4 levels at diagnosis did not.Conclusion:Our findings suggest that the mortality rate of patients with IgG4-RD does not significantly differ from that of the Japanese general population. Multi-organ involvement and renal dysfunction at diagnosis as well as malignancy during the clinical course may be associated with higher mortality. An appropriate clinical evaluation for the early detection of these risk factors is required at first diagnosis and during long-term follow-up.Disclosure of Interests:None declared
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Takeuchi A, Uemura A, Goya S, Shimada K, Yoshida T, Hara S, Sato K, Shiraishi K, Yairo A, Kto K, Matsuura K, Tanaka R. The utility of patent ductus arteriosus closure with hemostatic clip in dogs. Pol J Vet Sci 2021; 23:255-260. [PMID: 32627978 DOI: 10.24425/pjvs.2020.133640] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
This study investigated the utility of patent ductus arteriosus (PDA) closure with hemostatic clip by comparing with traditional PDA closure. Medical records of 51 dogs with surgical closure of PDA were reviewed and retrospective study was conducted. 29 dogs were treated by procedure with hemostatic clip (Group HC), and 22 dogs were treated by surgical ligation (Group SL). Data pertaining to breed, sex, age and body weight at the time of surgery, echocardiographic minimal ductal diameter, duration of surgery, hemostatic clip size, echocardiographic findings, hemor-rhage, residual ductal flow and recanalization were collected from records. The results showed that procedure with hemostatic clip had been selected in lighter dogs than traditional PDA closure. Duration of surgery performed only hemostatic clip technique was significantly shorter than that in group SL. Preoperative LVIDd, E-wave and FS were significantly lower than postoperative ones. As regard all parameters, the differences between pre- and postoperative periods were not significantly different between group HC and group SL. Hemorrhage, residual ductal flow, and recanalization were not significantly different in both groups. The present study showed that procedure with hemostatic clip is beneficial in that it is available in smaller dogs and can make shorter operation duration than traditional PDA closure. Moreover, the procedure is effective for the resolution of volume overload of the left atrium and ventricle in short-term outcome. Complications including hemorrhage, residual ductal flow and recanaliza-tion were not significantly different with both techniques.
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Affiliation(s)
- A Takeuchi
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu, Tokyo, 183-8509, Japan
| | - A Uemura
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8572, Japan
| | - S Goya
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu, Tokyo, 183-8509, Japan
| | - K Shimada
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu, Tokyo, 183-8509, Japan
| | - T Yoshida
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu, Tokyo, 183-8509, Japan
| | - S Hara
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu, Tokyo, 183-8509, Japan
| | - K Sato
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu, Tokyo, 183-8509, Japan
| | - K Shiraishi
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu, Tokyo, 183-8509, Japan
| | - A Yairo
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu, Tokyo, 183-8509, Japan
| | - K Kto
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu, Tokyo, 183-8509, Japan
| | - K Matsuura
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu, Tokyo, 183-8509, Japan
| | - R Tanaka
- Department of Veterinary Surgery, Faculty of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu, Tokyo, 183-8509, Japan
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Okubo Y, Hosotani K, Taniguchi Y, Hara S, Inokuma T. Gastrointestinal: Recurrence of pembrolizumab-induced severe gastritis after tapering steroid therapy. J Gastroenterol Hepatol 2021; 36:586. [PMID: 32945040 DOI: 10.1111/jgh.15248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 09/03/2020] [Indexed: 12/09/2022]
Affiliation(s)
- Y Okubo
- Department of Gastroenterology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - K Hosotani
- Department of Gastroenterology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Y Taniguchi
- Department of Gastroenterology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - S Hara
- Department of Clinical Pathology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - T Inokuma
- Department of Gastroenterology, Kobe City Medical Center General Hospital, Kobe, Japan
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Sato Y, Hara S, Shima Y, Shimada Y, Osaki M, Matsunashi A, Hirabayashi R, Nagata K, Nakagawa A, Tachikawa R, Tomii K. P37.29 Clinical Characteristics that Affect the Success Rate of BRAF-V600E Oncomine Dx Target Test. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.775] [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: 10/21/2022]
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Toi Y, Hayashi H, Fujimoto D, Tachihara M, Furuya N, Otani S, Shimizu J, Katakami N, Azuma K, Miura N, Nishino K, Hara S, Teraoka S, Morita S, Nakagawa K, Yamamoto N. 1259O A randomized phase II study of osimertinib with or without bevacizumab in advanced lung adenocarcinoma patients with EGFR T790M mutation (West Japan Oncology Group 8715L). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1573] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Hara S, Hori M, Hagiwara A, Tsurushima Y, Tanaka Y, Maehara T, Aoki S, Nariai T. Myelin and Axonal Damage in Normal-Appearing White Matter in Patients with Moyamoya Disease. AJNR Am J Neuroradiol 2020; 41:1618-1624. [PMID: 32855183 DOI: 10.3174/ajnr.a6708] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 06/05/2020] [Indexed: 12/28/2022]
Abstract
BACKGROUND AND PURPOSE Although chronic ischemia is known to induce myelin and axonal damage in animal models, knowledge regarding patients with Moyamoya disease is limited. We aimed to investigate the presence of myelin and axonal damage in Moyamoya disease and their relationship with cognitive performance. MATERIALS AND METHODS Eighteen patients with Moyamoya disease (16-55 years of age) and 18 age- and sex-matched healthy controls were evaluated with myelin-sensitive MR imaging based on magnetization transfer saturation imaging and 2-shell diffusion MR imaging. The myelin volume fraction, which reflects the amount of myelin sheath; the g-ratio, which represents the ratio of the inner (axon) to the outer (axon plus myelin) diameter of the fiber; and the axon volume fraction, which reflects axonal components, were calculated and compared between the patients and controls. In the patients with Moyamoya disease, the relationship between these parameters and cognitive task-measuring performance speed was also evaluated. RESULTS Compared with the healthy controls, the patients with Moyamoya disease showed a significant decrease in the myelin and axon volume fractions (P < .05) in many WM regions, while the increases in the g-ratio values were not statistically significant. Correlations with cognitive performance were most frequently observed with the axon volume fraction (r = 0.52-0.54; P < .03 in the right middle and posterior cerebral artery areas) and were the strongest with the g-ratio values in the right posterior cerebral artery region (r = 0.64; P = .004). CONCLUSIONS Myelin-sensitive MR imaging and diffusion MR imaging revealed that myelin and axonal damage exist in patients with Moyamoya disease. The relationship with cognitive performance might be stronger with axonal damage than with myelin damage.
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Affiliation(s)
- S Hara
- From the Department of Neurosurgery (S.H., Y.T., T.M., T.N.), Tokyo Medical and Dental University, Tokyo, Japan .,Department of Radiology (S.H., M.H., A.H., Y.T., S.A.), Juntendo University, Tokyo, Japan
| | - M Hori
- Department of Radiology (S.H., M.H., A.H., Y.T., S.A.), Juntendo University, Tokyo, Japan.,Department of Diagnostic Radiology (M.H.), Toho University Omori Medical Center, Tokyo, Japan
| | - A Hagiwara
- Department of Radiology (S.H., M.H., A.H., Y.T., S.A.), Juntendo University, Tokyo, Japan
| | - Y Tsurushima
- Department of Radiology (S.H., M.H., A.H., Y.T., S.A.), Juntendo University, Tokyo, Japan.,Department of Radiology (Y.T.), Kenshinkai Tokyo Medical Clinic, Tokyo, Japan
| | - Y Tanaka
- From the Department of Neurosurgery (S.H., Y.T., T.M., T.N.), Tokyo Medical and Dental University, Tokyo, Japan
| | - T Maehara
- From the Department of Neurosurgery (S.H., Y.T., T.M., T.N.), Tokyo Medical and Dental University, Tokyo, Japan
| | - S Aoki
- Department of Radiology (S.H., M.H., A.H., Y.T., S.A.), Juntendo University, Tokyo, Japan
| | - T Nariai
- From the Department of Neurosurgery (S.H., Y.T., T.M., T.N.), Tokyo Medical and Dental University, Tokyo, Japan
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Zoshima T, Hara S, Kawano M. FRI0188 THE CLINICOPATHOLOGICAL SIGNIFICANCE OF MODIFIED NATIONAL INSTITUTES OF HEALTH ACTIVITY AND CHRONICITY SCORING SYSTEM IN LUPUS NEPHRITIS; A MULTICENTER RETROSPECTIVE STUDY. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.3016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:The revised International Society of Nephrology/Renal Pathology Society (ISN/RPS) Classification of lupus nephritis (LN) 2018 defined a modified National Institutes of Health activity and chronicity scoring system for all LN classes [1]. As this was not arrived at by an evidence-based approach, its clinicopathological significance including prognostic value should be validated [1]. Furthermore, though the activity index included wire-loop lesion and hyaline deposits (WL), we previously demonstrated that WL was associated with serological immune abnormality, but not renal prognosis [2].Objectives:We conducted this study to clarify the relationships of modified activity score (AS) and chronicity score (CS) to clinical parameters at the time of renal biopsy and renal and life prognoses, and also to investigate the impact of AS without WL.Methods:We enrolled 138 Japanese LN patients subjected to renal biopsy in 11 hospitals from 2000 to 2019. We measured clinical findings at the time of renal biopsy, and determined the presence of comorbidities. We also measured serum creatinine and estimated glomerular filtration rate (eGFR) at the last patient visit, and recorded medications prescribed for LN. Renal biopsy findings were classified by the modified ISN/RPS classification 2018 including AS and CS for all LN classes. On stepwise multivariate analysis, we applied the variables with significant differences in univariate comparisons. The primary endpoint was chronic kidney disease (CKD; eGFR <60 ml/min/1.73m2) and/or death.Results:Of 138 patients (116 females; median 39 years old), class I, II, III, IV, and V included 2 (1.4%), 13 (9.4%), 43 (31.2%), 69 (50.0%), and 11 (8.0%), respectively. Median AS, AS without WL (AS-WL), and CS were 4, 3, and 2, respectively. AS ≥5 group (61 patients, 44.2%) had higher proteinuria, hematuria and serum anti-ds DNA antibodies levels and lower serum total protein (TP) and C3 levels than AS <5 group. CS ≥3 group (58 patients, 42%) had higher age, proteinuria, serum C3 levels, and frequency of hypertension (HT) and lower eGFR and serum anti-ds DNA antibodies and IgG levels than CS<3 group. Multiple regression analysis revealed significant associations between AS and hematuria, TP and C3 (β=0.312, -0.281, -0.213;p<0.001, 0.001, 0.009), and between CS and age (β=0.300;p=0.010). Next, patients who achieved the primary endpoint had higher age, frequencies of HT and hyperlipidemia and lower eGFR, serum TP and IgG levels than patients who did not. Observation period (median 36 vs 47 months,p=0.696) and medications for LN did not differ between these groups. Cox regression analysis revealed significant associations of prognosis with eGFR and TP clinically (β=0.955, 3.349;p=0.025, 0.008), and with CS pathologically (β=1.231,p=0.028). Neither AS nor AS-WL was included in the prognostic factors. Kaplan-Meier method with log-rank tests showed a significant difference in cumulative rate of CKD and/or death between CS ≥3 and CS <3 groups (p=0.049).Conclusion:AS and CS were related to different clinical parameters at the time of renal biopsy. CS was associated with renal and life prognoses, while neither AS nor AS-WL was. These results revealed that these scores have different clinicopathological significance in LN.References:[1]Bajema IM, et al. Kidney Int. 2018;93:789-96.[2]Zoshima T, et al. Lupus 2019, accepted.Disclosure of Interests:None declared
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Fujisawa Y, Suzuki Y, Zoshima T, Hara S, Ito K, Mizushima I, Fujii H, Kawano M. FRI0166 HIGH FREQUENCY OF KIDNEY STONES AND/OR NEPHROCALCINOSIS IN PRIMARY SJOGREN’S SYNDROME MIGHT ACCELERATE CHRONIC RENAL DYSFUNCTION DUE TO TUBULOINTERSTITIAL DISEASE. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.3021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:The renal involvement of primary Sjögren’s syndrome (pSS) is characterized by distal renal tubular acidosis (RTA), tubulointerstitial nephritis (TIN), and/or glomerulonephritis [1,2]. Kidney stones and nephrocalcinosis are presumably caused by subclinical distal tubular acidosis, but its clinical significance has not been clarified.Objectives:This study aimed to clarify the frequency and clinical features of patients with pSS with kidney stones and/or nephrocalcinosis.Methods:We examined 59 patients with anti SS-A/Ro positive pSS who underwent abdominal computed tomography and/or ultrasound between 1998 and 2019 at Kanazawa University Hospital. We identified 2 groups of patients with primary Sjögren’s syndrome: 1) patients with kidney stones and/or nephrocalcinosis (group A: n=19) and 2) those without kidney stones and/or nephrocalcinosis (group B: n=40), and retrospectively analyzed their clinical features.Results:Kidney stones and/or nephrocalcinosis were confirmed in 19 of 59 (32%) patients with pSS. The patients comprised 4 males and 55 females with an average age of 60 years (range, 30 to 83 years) and mean observation period of 96 months (range 1 to 336 months). Estimated glomerular filtration rate (eGFR) at the time of diagnostic imaging (group A vs group B: 71.5 ml/min/1.73 m2vs 82.8 ml/min/1.73 m2; p=0.37) and eGFR at last follow up (group A vs group B: 59.3 ml/min/1.73 m2vs 74.7 ml/min/1.73 m2;p=0.03) of group A were lower than those of group B and urinary β2-microgloblin (group A vs group B: 7222 μg/mL vs 437 μg/mL; p=0.01) and urinary N-acetyl-β-D-glucosaminidase (group A vs group B: 5.8 U/L vs 3.9 U/L; p=0.22) of group A were higher than those of group B, while serum electrolytes (sodium, potassium, chloride, calcium, phosphorus), fractional excretion of calcium (group A vs group B: 1.2% vs1.5%; p=0.916), ESSDAI (group A vs group B: 7.6 vs 4.3; p=0.069), and eGFR decrease rate were not significantly different.Conclusion:32% patients with anti SS-A/Ro positive pSS had kidney stones and/or nephrocalcinosis in our cohort and their presence might accelerate chronic renal dysfunction due to tubulointerstitial disease (subclinical RTA or TIN).References:[1]Jain A et al. Renal involvement in primary Sjogren’s syndrome: a prospective cohort study. Rheumatol Int 2018; 38: 2251-62.[2]Jasiek M et al. A multicentre study of 95 biopsy-proven cases of renal disease in primary Sjögren’s syndrome. Rheumatology 2017; 56: 362-70.Acknowledgments:We thank Mr. John Gelblum for critical reading of the manuscript.Disclosure of Interests:None declared
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Mizushima I, Yamano T, Kawahara H, Hibino S, Nishioka R, Zoshima T, Hara S, Ito K, Fujii H, Kawano M. SAT0532 POSITIVE DISEASE-SPECIFIC AUTOANTIBODIES LOWER DIAGNOSTIC SENSITIVITY BUT HAVE LITTLE CLINICAL SIGNIFICANCE IN DIAGNOSING IgG4-RELATED DISEASE USING THE 2019 ACR/EULAR CLASSIFICATION CRITERIA IN DAILY CLINICAL PRACTICE. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.3177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Recently, the 2019 ACR/EULAR classification criteria for IgG4-related disease (IgG4-RD) were published mainly to identify more homogeneous subjects for inclusion in clinical trials and observational studies [1]. However, although their high specificity is presumed to be useful to differentiate IgG4-RD from various mimickers, their value in daily clinical practice needs to be evaluated.Objectives:This study aimed to clarify the usefulness of the 2019 ACR/EULAR classification criteria for IgG4-RD and characteristics of false-negative patients in daily clinical practice.Methods:We retrospectively reviewed the medical records of 162 patients with IgG4-RD and 130 consecutive non-IgG4-RD patients (mimickers) diagnosed by experts whose serum IgG4 levels were measured at a single center in Japan. Using the collected data, we calculated sensitivity, specificity, and fulfillment rates for the entry criteria, exclusion criteria, and threshold of inclusion criteria points. In addition, to clarify the characteristics of false-negative cases in IgG4-RD, we performed an intergroup comparison of their clinical features including disease-specific autoantibodies.Results:Both the patients with IgG4-RD and mimickers were relatively old (66 and 65 years) with male predominance (67% and 60%). The final diagnoses of mimickers mainly consisted of cancer, lymphoma, vasculitis, sarcoidosis, multicentric Castleman’s disease, and atherosclerotic or infectious aortic aneurysm. The classification criteria had a sensitivity of 72.8% and a specificity of 100%. Of the 44 false-negative cases, one did not fulfill the entry criteria, 20 fulfilled one exclusion criterion, and 27 did not achieve sufficient inclusion criteria points. Compared with the true-positive cases, the false-negative cases had significantly fewer affected organs, lower serum IgG4 levels, higher serum CH50 levels, and lower prevalence of salivary/lacrimal gland and renal parenchymal lesions. They were also less likely to have had biopsies (61% vs 97%). Of note, positivity of disease-specific autoantibodies including SSA/Ro antibody, ANCA, ds-DNA antibody, and ACPA was the most common exclusion criterion fulfilled in 18 patients, only 2 of whom were diagnosed with a specific autoimmune disease (rheumatoid arthritis) complicated by IgG4-RD. The remaining 16 patients had no specific clinical symptoms related to such autoantibodies. In addition, compared with IgG4-RD patients without disease-specific autoantibodies, the 18 patients with them had almost equal serum IgG4 and complement levels, number of affected organs, and histopathology and immunostaining scores despite higher serum IgG and CRP levels.Conclusion:The present study suggests that the 2019 ACR/EULAR classification criteria for IgG4-RD has excellent diagnostic specificity and moderate sensitivity in daily clinical practice. Positive disease-specific autoantibodies alone, which lowered the sensitivity in this study, may have little clinical significance concerning the diagnosis of IgG4-RD.References:[1]Wallace ZS et al. The 2019 American College of Rheumatology/European League Against Rheumatism classification criteria for IgG4-related disease. Ann Rheum Dis. 2020 Jan;79(1):77-87.Disclosure of Interests:None declared
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Suzuki S, Kimura T, Hara S, Ishimaru F, Takanashi M. Factors Associated With Umbilical Cord Blood Collection Quality in Japan. J Hematol 2020; 9:9-12. [PMID: 32362979 PMCID: PMC7188375 DOI: 10.14740/jh628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 04/13/2020] [Indexed: 11/11/2022] Open
Abstract
Background Umbilical cord blood (UCB) has become an established alternative source of hematopoietic stem cells with marrow and postmobilization peripheral blood. The presence of a large amount of clots may lead to the deterioration of cord blood quality. To improve UCB quality as a source of hematopoietic stem cells in Japan, we examined factors associated with UCB collection methods from the viewpoint of eliminating the presence of clots. Methods In August 2019, we requested the directors of 74 certified facilities to provide information on UCB collection methods in Japan. A total of 46 (62.2%) of them responded with valid information on a total of 2,892 UCB collections. In this study, collected UCB without clots macroscopically was evaluated as a high-quality UCB. Results The 2,891 UCB collections described during the study period were divided to those with (n = 760, 26.3%) and without clots (high quality; n = 2,131, 73.7%). Multivariate analysis revealed single puncture as a factor determining high-quality UCB collection (adjusted odds ratio (ORs): 1.80, 95% confidence interval (CI): 1.3 - 5.4, P = 0.01). Conclusions Single puncture is an independent effective factor determining high-quality manual UCB collection in Japan.
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Affiliation(s)
- Shunji Suzuki
- Department of Obstetrics and Gynecology, Japanese Red Cross Katsushika Maternity Hospital, Tokyo, Japan
| | | | - Sumiko Hara
- Department of Obstetrics and Gynecology, Tokyo Adventist Hospital, Tokyo, Japan
| | | | - Minoko Takanashi
- Blood Service Headquarters, Japanese Red Cross Society, Tokyo, Japan
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Ubara Y, Hara S, Katori H, Arizono K, Ikeguti H, Yokoyama K, Hinosita F, Inoue S, Kuzuhara K, Yamada A, Mimura N. Acute Pancreatitis in a Capd Patient in Association with Hemolytic Anemia. Perit Dial Int 2020. [DOI: 10.1177/089686089701700123] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Y. Ubara
- Department of Interna Medicine1, Tokyo, Japan
| | - S. Hara
- Department of Interna Medicine1, Tokyo, Japan
| | - H. Katori
- Department of Interna Medicine1, Tokyo, Japan
| | - K. Arizono
- Department of Interna Medicine1, Tokyo, Japan
| | - H. Ikeguti
- Department of Interna Medicine1, Tokyo, Japan
| | - K. Yokoyama
- Department of Interna Medicine1, Tokyo, Japan
| | - F. Hinosita
- Department of Interna Medicine1, Tokyo, Japan
| | - S. Inoue
- Department of Surgery Toranomon Hospital Kidney Center Minatoku, Tokyo, Japan
| | - K. Kuzuhara
- Department of Surgery Toranomon Hospital Kidney Center Minatoku, Tokyo, Japan
| | - A. Yamada
- Department of Interna Medicine1, Tokyo, Japan
| | - N. Mimura
- Department of Interna Medicine1, Tokyo, Japan
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Zoshima T, Hara S, Mizushima I, Nishioka R, Ito K, Fujii H, Yamada K, Nomura H, Kawano M. Wire-loop lesion is associated with serological immune abnormality, but not renal prognosis, in lupus nephritis. Lupus 2020; 29:407-412. [PMID: 32041502 DOI: 10.1177/0961203320905652] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Wire-loop lesion (WL) is one of the active lesions of lupus nephritis (LN). However, few reports have focused on the clinicopathological relationships of WL to serological immune abnormality and renal prognosis. METHODS We enrolled 126 Japanese LN patients subjected to renal biopsy in 11 hospitals from 2000 to 2018. In patients with class III or IV of the International Society of Nephrology/Renal Pathology Society classification, we retrospectively compared clinicopathological findings between those with WL (WL+ group) and without WL (WL- group) to detect factors associated with WL. Chronic kidney disease (CKD) was defined as an estimated glomerular filtration rate of <60 mL/min/1.73m2 for more than three months. We also compared these findings between those with CKD (CKD+ group) and without CKD (CKD- group) at the last visit to investigate factors associated with renal prognosis. RESULTS Of 126 patients, 100 (79.4%) were classified as class III or IV. WL was found in 36 (36.0%) of them. Although the renal function did not differ, the WL+ group had a higher titre of serum anti-dsDNA antibodies and lower serum complement 3 levels than the WL- group. Linear regression analysis revealed a significant association only between anti-dsDNA antibodies and WL (β = 0.27, 95% confidence interval (CI) 0.001-0.100, p = 0.01). Of these patients, 69 were tracked for 59.6 ± 55.1 months. Kaplan-Meier analysis showed no difference in renal prognosis between these groups. Next, the CKD+ group included 15 (22.1%) patients. They were older and had higher frequencies of hypertension and hyperuricaemia, serum creatinine (Cr) level, glomerulosclerosis, interstitial inflammation, interstitial fibrosis and tubular atrophy than the CKD- group at the time of renal biopsy. The frequency of WL was not significantly different. Cox regression analysis revealed significant associations of CKD with hypertension, hyperuricaemia, serum Cr level at the time of renal biopsy clinically and with tubular atrophy histologically. CONCLUSIONS WL was associated with serum anti-dsDNA antibodies but not with renal prognosis, suggesting that WL reflects immune abnormality but is not an independent factor predictive of renal prognosis in LN.
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Affiliation(s)
- T Zoshima
- Department of Rheumatology, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - S Hara
- Department of Rheumatology, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - I Mizushima
- Department of Rheumatology, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - R Nishioka
- Department of Rheumatology, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - K Ito
- Department of Rheumatology, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - H Fujii
- Department of Rheumatology, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - K Yamada
- Department of Hematology and Immunology, Kanazawa Medical University, Kanazawa, Japan
| | - H Nomura
- Department of General Medicine, Kanazawa University Hospital, Kanazawa, Japan
| | - M Kawano
- Department of Rheumatology, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
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Ogihara K, Kikuchi E, Okabe T, Hattori S, Yamashita R, Yoshimine S, Shirotake S, Matsumoto K, Mizuno R, Hara S, Oyama M, Niwakawa M, Oya M. Neutrophil-to-lymphocyte ratio is a useful biomarker for predicting worse clinical outcome in chemo-resistant urothelial carcinoma patients treated with pembrolizumab. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz425.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Hara S, Tanaka Y, Hayashi S, Inaji M, Maehara T, Hori M, Aoki S, Ishii K, Nariai T. Bayesian Estimation of CBF Measured by DSC-MRI in Patients with Moyamoya Disease: Comparison with 15O-Gas PET and Singular Value Decomposition. AJNR Am J Neuroradiol 2019; 40:1894-1900. [PMID: 31601573 DOI: 10.3174/ajnr.a6248] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 08/19/2019] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE CBF analysis of DSC perfusion using the singular value decomposition algorithm is not accurate in patients with Moyamoya disease. This study compared the Bayesian estimation of CBF against the criterion standard PET and singular value decomposition methods in patients with Moyamoya disease. MATERIALS AND METHODS Nineteen patients with Moyamoya disease (10 women; 22-52 years of age) were evaluated with both DSC and 15O-gas PET within 60 days. DSC-CBF maps were created using Bayesian analysis and 3 singular value decomposition analyses (standard singular value decomposition, a block-circulant deconvolution method with a fixed noise cutoff, and a block-circulant deconvolution method that adopts an occillating noise cutoff for each voxel according to the strength of noise). Qualitative and quantitative analyses of the Bayesian-CBF and singular value decomposition-CBF methods were performed against 15O-gas PET and compared with each other. RESULTS In qualitative assessments of DSC-CBF maps, Bayesian-CBF maps showed better visualization of decreased CBF on PET (sensitivity = 62.5%, specificity = 100%, positive predictive value = 100%, negative predictive value = 78.6%) than a block-circulant deconvolution method with a fixed noise cutoff and a block-circulant deconvolution method that adopts an oscillating noise cutoff for each voxel according to the strength of noise (P < .03 for all except for specificity). Quantitative analysis of CBF showed that the correlation between Bayesian-CBF and PET-CBF values (ρ = 0.46, P < .001) was similar among the 3 singular value decomposition methods, and Bayesian analysis overestimated true CBF (mean difference, 47.28 mL/min/100 g). However, the correlation between CBF values normalized to the cerebellum was better in Bayesian analysis (ρ = 0.56, P < .001) than in the 3 singular value decomposition methods (P < .02). CONCLUSIONS Compared with previously reported singular value decomposition algorithms, Bayesian analysis of DSC perfusion enabled better qualitative and quantitative assessments of CBF in patients with Moyamoya disease.
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Affiliation(s)
- S Hara
- From the Department of Neurosurgery (S. Hara, Y.T., S. Hayashi, M.I., T.M., T.N.), Tokyo Medical and Dental University, Tokyo, Japan .,Department of Radiology (S. Hara. M.H., S.A.), Juntendo University, Tokyo, Japan
| | - Y Tanaka
- From the Department of Neurosurgery (S. Hara, Y.T., S. Hayashi, M.I., T.M., T.N.), Tokyo Medical and Dental University, Tokyo, Japan
| | - S Hayashi
- From the Department of Neurosurgery (S. Hara, Y.T., S. Hayashi, M.I., T.M., T.N.), Tokyo Medical and Dental University, Tokyo, Japan.,Research Team for Neuroimaging (S. Hayashi, M.I., K.I., T.N.), Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - M Inaji
- From the Department of Neurosurgery (S. Hara, Y.T., S. Hayashi, M.I., T.M., T.N.), Tokyo Medical and Dental University, Tokyo, Japan.,Research Team for Neuroimaging (S. Hayashi, M.I., K.I., T.N.), Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - T Maehara
- From the Department of Neurosurgery (S. Hara, Y.T., S. Hayashi, M.I., T.M., T.N.), Tokyo Medical and Dental University, Tokyo, Japan
| | - M Hori
- Department of Radiology (S. Hara. M.H., S.A.), Juntendo University, Tokyo, Japan
| | - S Aoki
- Department of Radiology (S. Hara. M.H., S.A.), Juntendo University, Tokyo, Japan
| | - K Ishii
- Research Team for Neuroimaging (S. Hayashi, M.I., K.I., T.N.), Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - T Nariai
- From the Department of Neurosurgery (S. Hara, Y.T., S. Hayashi, M.I., T.M., T.N.), Tokyo Medical and Dental University, Tokyo, Japan.,Research Team for Neuroimaging (S. Hayashi, M.I., K.I., T.N.), Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
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Kawachi H, Tamiya M, Tamiya A, Ishii S, Hirano K, Matsumoto H, Yokoyama T, Ishida T, Ryota K, Fujimoto D, Hosoya K, Suzuki H, Hirashima T, Kanazu M, Sawa N, Uchida J, Morita M, Makio T, Hara S, Kumagai T. Prognostic impact of metastatic sites for pembrolizumab efficacy as first-line therapy in patients with PD-L1 tumour proportion score (TPS) ≥ 50% advanced non-small cell lung cancer: A retrospective multicenter study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz260.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Kunimasa K, Ito K, Yamanaka T, Fujimoto D, Mori M, Maeno K, Tomomatsu K, Tamura A, Tanaka H, Watanabe S, Teraoka S, Hataji O, Suzuki K, Hontsu S, Hara S, Bessho A, Kubo A, Okuno M, Nakagawa K, Yamamoto N. The safety assessment of crizotinib and alectinib from real-world data of 840 ALK-inhibitor naïve patients with NSCLC harboring ALK-rearrangement (WJOG9516L). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz260.066] [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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Itotani R, Matsumoto S, Udagawa H, Nishino K, Nakachi I, Miyamoto S, Hara S, Kuyama S, Ebi N, Tsubata Y, Shingyoji M, Kato T, Ohe Y, Nishi K, Hashimoto S, Goto K. A large scale prospective concordance study of oncogene driver detection between plasma- and tissue-based NGS analysis in advanced non-small cell lung cancer (NSCLC). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz260.079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Tamiya M, Tamiya A, Hosoya K, Taniguchi Y, Yokoyama T, Fukuda Y, Hirano K, Matsumoto H, Kominami R, Suzuki H, Hirashima T, Uchida J, Morita M, Kanazu M, Sawa N, Hara S, Kinoshita Y, Kumagai T, Fujimoto D. The efficacy and safety of pembrolizumab as a first-line therapy in PD-L1 50% positive advanced NSCLC (HOPE-001). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz260.042] [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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Koay HW, Shima T, Fukuda M, Kanda H, Hara S, Yorita T. Experimental study of fast-neutron production and moderation for accelerator-based BNCT system. Appl Radiat Isot 2019; 152:11-17. [PMID: 31212109 DOI: 10.1016/j.apradiso.2019.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 05/06/2019] [Accepted: 06/02/2019] [Indexed: 11/29/2022]
Abstract
This work aims to study the fast-neutron production and moderation for the development of a compact accelerator-based multi-port Boron Neutron Capture Therapy (AB-mBNCT) system. An initial energy distribution and the efficiency of a test moderator assembly (TMA) for fast neutrons from a tungsten (W) target bombarded with a 53 MeV proton beam were measured using organic scintillators. The experimental results were reproduced with reasonable accuracy by simulations using the PHITS code. This paper will discuss about the experimental outcome and the related benchmark calculations by PHITS code.
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Affiliation(s)
- H W Koay
- Research Center for Nuclear Physics (RCNP), Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka Prefecture, 567-0047, Japan.
| | - T Shima
- Research Center for Nuclear Physics (RCNP), Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka Prefecture, 567-0047, Japan
| | - M Fukuda
- Research Center for Nuclear Physics (RCNP), Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka Prefecture, 567-0047, Japan
| | - H Kanda
- Research Center for Nuclear Physics (RCNP), Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka Prefecture, 567-0047, Japan
| | - S Hara
- Research Center for Nuclear Physics (RCNP), Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka Prefecture, 567-0047, Japan
| | - T Yorita
- Research Center for Nuclear Physics (RCNP), Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka Prefecture, 567-0047, Japan
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Sato Y, Fujimoto D, Hosoya K, Kawachi H, Hamakawa H, Takahashi Y, Kokubo M, Hara S, Tomii K. Efficacy of local therapy for patients with oligometastatic non-small cell lung cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy425.017] [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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Ikeda T, Ohashi K, Sekine A, Ohe Y, Tsuda T, Kataoka Y, Hara S, Okamoto N, Kodani M, Matsumoto S, Goto K. Tumor mutation burden (TMB) estimation using small-sized targeted next-generation sequencing (NGS) to predict efficacy of immune checkpoint inhibitors (ICIs) for non-small cell lung cancer (NSCLC). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy292.032] [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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28
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Hara M, Yano Y, Kajita M, Nishino H, Ibata Y, Toda M, Hara S, Kasamatsu A, Ito H, Ono T, Ido T. Microwave oscillator using piezoelectric thin-film resonator aiming for ultraminiaturization of atomic clock. Rev Sci Instrum 2018; 89:105002. [PMID: 30399742 DOI: 10.1063/1.5048633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 09/26/2018] [Indexed: 06/08/2023]
Abstract
We developed a microwave oscillator and a micro electromechanical systems-based rubidium cell for the miniaturization of atomic clocks. A thin-film bulk acoustic resonator (FBAR) having a resonant frequency of the fundamental mode in the 3.5 GHz band was employed instead of a crystal resonator. It delivers a clock transition frequency of Rb atoms of 3.417 GHz without the need for a complicated frequency multiplication using a phase-locked loop. This topology considerably reduces the system scale and power consumption. For downsizing the atomic clock system toward the chip level as well as mass production, a microfabricated gas cell containing Rb and N2 gases was also developed. These microcomponents were incorporated into an atomic clock test bench, resulting in a clock operation with a short-term frequency instability of 2.1 × 10-11 at 1 s. To the best of our knowledge, this is the first report of a coherent population trapping clock operation using an FBAR-based microwave oscillator as well as a microfabricated gas cell.
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Affiliation(s)
- M Hara
- National Institute of Information and Communications Technology, Tokyo 184-8795, Japan
| | - Y Yano
- National Institute of Information and Communications Technology, Tokyo 184-8795, Japan
| | - M Kajita
- National Institute of Information and Communications Technology, Tokyo 184-8795, Japan
| | - H Nishino
- Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
| | - Y Ibata
- Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
| | - M Toda
- Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
| | - S Hara
- National Institute of Information and Communications Technology, Tokyo 184-8795, Japan
| | - A Kasamatsu
- National Institute of Information and Communications Technology, Tokyo 184-8795, Japan
| | - H Ito
- Laboratory for Future Interdisciplinary Research of Science and Technology (FIRST), Tokyo Institute of Technology, Yokohama 226-8503, Japan
| | - T Ono
- Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
| | - T Ido
- National Institute of Information and Communications Technology, Tokyo 184-8795, Japan
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Tateishi R, Kimura S, Kawakami T, Kanehama N, Tachibana S, Arai H, Hayasaka K, Hara S, Hiroki J, Yoshioka K, Kuroda S, Iwatsuka R, Mizukami A, Hayashi T, Matsumura A. P5502Comparison of accuracy of fractional flow reserve using optical sensor wire to conventional pressure wire. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5502] [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: 11/12/2022] Open
Affiliation(s)
- R Tateishi
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - S Kimura
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - T Kawakami
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - N Kanehama
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - S Tachibana
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - H Arai
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - K Hayasaka
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - S Hara
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - J Hiroki
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - K Yoshioka
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - S Kuroda
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - R Iwatsuka
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - A Mizukami
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - T Hayashi
- Kameda Medical Center, Cardiology, Chiba, Japan
| | - A Matsumura
- Kameda Medical Center, Cardiology, Chiba, Japan
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Kimura S, Kawakami T, Kanehama N, Tateishi R, Tachibana S, Arai H, Hara S, Hayasaka K, Hiroki J, Yoshioka K, Kuroda S, Iwatsuka R, Mizukami A, Hayashi T, Matsumura A. P2629Reliability of optical coherence tomography in the prediction of occurrence of side-branch complications after percutaneous coronary intervention. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2629] [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)
- S Kimura
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - T Kawakami
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - N Kanehama
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - R Tateishi
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - S Tachibana
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - H Arai
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - S Hara
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - K Hayasaka
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - J Hiroki
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - K Yoshioka
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - S Kuroda
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - R Iwatsuka
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - A Mizukami
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - T Hayashi
- Cardiology, Kameda Medical Center, Kamogawa, Japan
| | - A Matsumura
- Cardiology, Kameda Medical Center, Kamogawa, Japan
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Yoshioka K, Kimura S, Kawakami T, Kanehama N, Tateishi R, Tachibana S, Arai H, Hayasaka K, Hara S, Hiroki J, Kuroda S, Iwatsuka R, Mizukami A, Hayashi T, Matsumura A. P5606Clinical implication of the differences of aspirated materials by thrombectomy in STEMI patients. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5606] [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 Yoshioka
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - S Kimura
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - T Kawakami
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - N Kanehama
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - R Tateishi
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - S Tachibana
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - H Arai
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - K Hayasaka
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - S Hara
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - J Hiroki
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - S Kuroda
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - R Iwatsuka
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - A Mizukami
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - T Hayashi
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
| | - A Matsumura
- Kameda Medical Center, Department of Cardiology, Kamogawa, Japan
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Kataoka Y, Ebi N, Fujimoto D, Hara S, Hirano K, Narabayashi T, Tanaka T, Tomii K, Yoshioka H. Prior radiotherapy does not predict nivolumab response in non-small-cell lung cancer: a retrospective cohort study. Ann Oncol 2018; 28:1402. [PMID: 28368440 DOI: 10.1093/annonc/mdx114] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Y Kataoka
- Department of Respiratory Medicine, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki
| | - N Ebi
- Department of Respiratory Medicine, Iizuka Hospital, Iizuka
| | - D Fujimoto
- Department of Respiratory Medicine, Kobe City Medical Center General Hospital, Kobe
| | - S Hara
- Respiratory Division, Department of Internal Medicine, Itami City Hospital, Itami
| | - K Hirano
- Department of Respiratory Medicine, Hyogo Prefectural Amagasaki General Medical Center, Amagasaki
| | - T Narabayashi
- Department of Internal Medicine, JCHO Osaka Hospital, Osaka
| | - T Tanaka
- Department of Respiratory Medicine, Kurashiki Central Hospital, Kurashiki, Japan
| | - K Tomii
- Department of Respiratory Medicine, Kobe City Medical Center General Hospital, Kobe
| | - H Yoshioka
- Department of Internal Medicine, JCHO Osaka Hospital, Osaka
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Horibe T, Zhou B, Hara S, Tsubakino D. Quantitative measure for nonlinear unstable systems based on the region of attraction and its application to designing parameter optimization – inverted pendulum example. Adv Robot 2018. [DOI: 10.1080/01691864.2018.1457980] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- T. Horibe
- Department of Aerospace Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - B. Zhou
- Department of Mechanical and Aerospace Engineering, University of California Los Angeles, Los Angeles, CA, USA
| | - S. Hara
- Department of Aerospace Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - D. Tsubakino
- Department of Aerospace Engineering, Graduate School of Engineering, Nagoya University, Nagoya, Japan
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Kawamoto Y, Nuta S, Tomizawa N, Hara S. Mechanical Strength of Synthetic Casting Tape for Application to Fracture Treatment of Farm Animals. Vet Comp Orthop Traumatol 2018. [DOI: 10.1055/s-0038-1632507] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
SummaryCompressive and torsional strength of cyclindrically formed synthetic casting tape for animals (Vetcast Plus™), composed of polyurethane-impregnated glass fibres, was investigated to determine its adequate application to fracture treatment of farm animals. After the completion of curing reaction, six-layered samples of the synthetic casting tape tolerated a compressive load of 6630 N (680 kgf). The sixlayered casting tape had also a torsional strength of 64 N · m. The compressive strength increased with time after the initiation of curing reaction. The time required for practical curing (achieving more than 60% of a final strength) was only 30 min, and that for complete curing 120 min. It was demonstrated that efficacious and safe fracture treatment of farm animals could be carried out using the synthetic casting tape for animals when a layer number appropriate to the total body weight of the patient animal was employed. The information obtained in this study is thought to be very useful in clinical practice.Mechanical strength of poly-urethane-impregnated synthetic casting tape was investigated to determine its adequate application to fracture treatment of farm animals. It was demonstrated that mechanical strength of cylindrically formed samples of the casting tape depended upon the layer number, and the six-layered sample tolerated a compressive load of 6630 N and a torsional load of 64 N · m when completely cured.
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Yoshida K, Hara S, Furumi K, Tofukuji I, Kubodera T, Yoda T, Kawai M, Sugimori H. Standard Protocol for Exchange of Health-checkup Data Based on SGML: The Health-checkup Data Markup Language (HDML). Methods Inf Med 2018. [DOI: 10.1055/s-0038-1634439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Summary
Objectives:
To develop a health/medical data interchange model for efficient electronic exchange of data among health-checkup facilities.
Results:
A Health-checkup Data Markup Language (HDML) was developed on the basis of the Standard Generalized Markup Language (SGML), and a feasibility study carried out, involving data exchange between two health checkup facilities. The structure of HDML is described.
Results:
The transfer of numerical lab data, summary findings and health status assessment was successful.
Conclusions:
HDML is an improvement to laboratory data exchange. Further work has to address the exchange of qualitative and textual data.
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Kataoka Y, Hirano K, Narabayashi T, Hara S, Fujimoto D, Tanaka T, Ebi N, Tomii K, Yoshioka H. P1.07-004 Predictive Biomarkers of Response to Nivolumab in Non–Small Cell Lung Cancer: A Multicenter Retrospective Cohort Study. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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37
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Fujimoto D, Yoshioka H, Kataoka Y, Kim Y, Tomii K, Ishida T, Hirabayashi M, Hara S, Ishitoko M, Fukuda Y, Hwang M, Sakai N, Fukui M, Nakaji H, Hirai T. P2.07-024 Real-World Data of Nivolumab for Previously Treated Non-Small Cell Lung Cancer Patients in Japan: A Multicenter Retrospective Cohort Study. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.11.083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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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38
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Takahashi M, Okawa K, Himoto A, Akai H, Hara S, Matsuo N, Sudo Y, Sogo M, Ugawa S, Okada T, Nosaka K, Sakane K, Doi M. P2700Fatal risk of warfarin in asian very elderly patients with atrial fibrillation in direct oral anti-coagulant era. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2700] [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: 11/14/2022] Open
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39
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Hara S, Miura H, Yamasaki K. POOR ORAL CONDITIONS ARE RELATED TO THE DECLINE OF ORAL DIADOCHOKINETIC RATE AMONG JAPANESE ELDERLY. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- S. Hara
- Kyushu Univ. of Health and Welfare, Nobeoka, Miyazaki, Japan,
| | - H. Miura
- National Institute of Public Health, Wako, Saitama, Japan
| | - K. Yamasaki
- Kyushu Univ. of Health and Welfare, Nobeoka, Miyazaki, Japan,
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40
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Hara S, Taguchi M. SIGNS OF EXACERBATION DETECTED BY FAMILY CAREGIVERS OF DEMENTED ELDERLY WITH CHRONIC HEART FAILURE. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- S. Hara
- Shimane University Faculty of Medicin, Izumo-shi, Japan,
| | - M. Taguchi
- Shimane Prefectural Central Hospital, Izumo-shi, Japan
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41
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Okawa K, Miyoshi T, Hara S, Matuo N, Sogo M, Okada T, Ugawa S, Nosaka K, Takahashi M, Sakane K, Doi M, Morita H, Ito H. P873Differences in endothelial dysfunction induced by paroxysmal and persistent atrial fibrillation: insights from the restoration of sinus rhythm with catheter ablation. Europace 2017. [DOI: 10.1093/ehjci/eux151.055] [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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42
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Watanabe T, Hara S, Muto J, Watanabe D, Akiyama M. Infantile bullous pemphigoid successfully treated with intravenous immunoglobulin therapy. Clin Exp Dermatol 2017; 42:576-578. [PMID: 28543802 DOI: 10.1111/ced.13104] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/13/2016] [Indexed: 11/27/2022]
Affiliation(s)
- T Watanabe
- Department of Dermatology, Toyota Memorial Hospital, Toyota, Aichi, Japan
| | - S Hara
- Department of Pediatrics, Toyota Memorial Hospital, Toyota, Aichi, Japan
| | - J Muto
- Department of Dermatology, Aichi Medical University, Nagakute, Aichi, Japan
| | - D Watanabe
- Department of Dermatology, Aichi Medical University, Nagakute, Aichi, Japan
| | - M Akiyama
- Department of Dermatology, Nagoya University, Nagoya, Aichi, Japan
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Hara S, Tanaka Y, Ueda Y, Hayashi S, Inaji M, Ishiwata K, Ishii K, Maehara T, Nariai T. Noninvasive Evaluation of CBF and Perfusion Delay of Moyamoya Disease Using Arterial Spin-Labeling MRI with Multiple Postlabeling Delays: Comparison with 15O-Gas PET and DSC-MRI. AJNR Am J Neuroradiol 2017; 38:696-702. [PMID: 28209582 DOI: 10.3174/ajnr.a5068] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [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: 08/15/2016] [Accepted: 11/09/2016] [Indexed: 12/18/2022]
Abstract
BACKGROUND AND PURPOSE Arterial spin-labeling MR imaging with multiple postlabeling delays has a potential to evaluate various hemodynamic parameters. To clarify whether arterial spin-labeling MR imaging can identify CBF and perfusion delay in patients with Moyamoya disease, we compared arterial spin-labeling, DSC, and 15O-gas PET in terms of their ability to identify these parameters. MATERIALS AND METHODS Eighteen patients with Moyamoya disease (5 men, 13 women; ages, 21-55 years) were retrospectively analyzed. CBF values of pulsed continuous arterial spin-labeling using 2 postlabeling delays (short arterial spin-labeling, 1525 ms; delayed arterial spin-labeling, 2525 ms) were compared with CBF values measured by 15O-gas PET. All plots were divided into 2 groups by the cutoff of time-based parameters (the time of the maximum observed concentration, TTP, MTT, delay of MTT to cerebellum, and disease severity [symptomatic or not]). The ratio of 2 arterial spin-labeling CBFs (delayed arterial spin-labeling CBF to short arterial spin-labeling CBF) was compared with time-based parameters: time of the maximum observed concentration, TTP, and MTT. RESULTS The short arterial spin-labeling-CBF values were significantly correlated with the PET-CBF values (r = 0.63; P = .01). However, the short arterial spin-labeling-CBF value dropped in the regions with severe perfusion delay. The delayed arterial spin-labeling CBF overestimated PET-CBF regardless of the degree of perfusion delay. Delayed arterial spin-labeling CBF/short arterial spin-labeling CBF was well correlated with the time of the maximum observed concentration, TTP, and MTT (ρ = 0.71, 0.64, and 0.47, respectively). CONCLUSIONS Arterial spin-labeling using 2 postlabeling delays may detect PET-measured true CBF and perfusion delay in patients with Moyamoya disease. Provided its theoretic basis and limitations are considered, noninvasive arterial spin-labeling could be a useful alternative for evaluating the hemodynamics of Moyamoya disease.
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Affiliation(s)
- S Hara
- From the Department of Neurosurgery (S.H., Y.T., Y.U., S.H., M.I., T.M., T.N.), Tokyo Medical and Dental University, Tokyo, Japan
| | - Y Tanaka
- From the Department of Neurosurgery (S.H., Y.T., Y.U., S.H., M.I., T.M., T.N.), Tokyo Medical and Dental University, Tokyo, Japan
| | - Y Ueda
- From the Department of Neurosurgery (S.H., Y.T., Y.U., S.H., M.I., T.M., T.N.), Tokyo Medical and Dental University, Tokyo, Japan
| | - S Hayashi
- From the Department of Neurosurgery (S.H., Y.T., Y.U., S.H., M.I., T.M., T.N.), Tokyo Medical and Dental University, Tokyo, Japan
| | - M Inaji
- From the Department of Neurosurgery (S.H., Y.T., Y.U., S.H., M.I., T.M., T.N.), Tokyo Medical and Dental University, Tokyo, Japan
- Research Team for Neuroimaging (M.I., K. Ishiwata, K. Ishii, T.N.), Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - K Ishiwata
- Research Team for Neuroimaging (M.I., K. Ishiwata, K. Ishii, T.N.), Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - K Ishii
- Research Team for Neuroimaging (M.I., K. Ishiwata, K. Ishii, T.N.), Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - T Maehara
- From the Department of Neurosurgery (S.H., Y.T., Y.U., S.H., M.I., T.M., T.N.), Tokyo Medical and Dental University, Tokyo, Japan
| | - T Nariai
- From the Department of Neurosurgery (S.H., Y.T., Y.U., S.H., M.I., T.M., T.N.), Tokyo Medical and Dental University, Tokyo, Japan
- Research Team for Neuroimaging (M.I., K. Ishiwata, K. Ishii, T.N.), Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
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Yamamoto T, Natio M, Hara S, Kudo T, Miwa Y. The effect of aprepitant and dexamethasone combination on paclitaxel-induced hypersensitivity reaction. EUR J GYNAECOL ONCOL 2016; 37:833-836. [PMID: 29943931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
PURPOSE OF INVESTIGATION Dexamethasone (DEX) is often administered to prevent paclitaxel (PTX)-induced hypersensitivity reactions (HSR). The DEX dose is reduced when administered in combination with aprepitant (APR). However, the influence of that dose reduction on PTX-induced HSR has not been thoroughly studied. The present authors aimed to investigate the effects of the combined administration of APR and DEX on PTX-induced HSR. MATERIALS AND METHODS Fifty-one patients who received a three-week PTX regimen in combination with APR and DEX were retrospectively analysed. The authors compared the dose of DEX with the incidence of HSR and other toxicities. RESULTS Patients were stratified into two groups depending on the DEX dose, > 20 mg (group D, 33 patients), and < 12 mg (group reD, 26 patients). The incidence of HSR in Groups D and reD were 51.5% (17/33) and 53.8% (14/26), respectively. The frequencies of other toxicities between the groups were comparable. CONCLUSION The findings suggest that although a reduction in DEX dose is possible when APR is co-administered, this does not affect the PTX-induced HSR. However, adverse effect should be closely monitored.
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Adachi T, Kishihara Y, Okano H, Honzawa H, Hirayama M, Higashi H, Yasuda H, Minami Y, Hara S, Harada N, Katsumi A, Suzaki S. The utility of procalcitonin for the patients with infected pancreatic necrotic and pancreatic abscess. Intensive Care Med Exp 2015. [PMCID: PMC4796962 DOI: 10.1186/2197-425x-3-s1-a113] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
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Hara S, Nuka H, Horita S, Zoshima T, Ito K, Aizu M, Fujii H, Yamada K, Kawano M. AB1171 Clinical Significance of Anti-Nuclear Antibodies in IGG4-Related Disease. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4484] [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: 11/04/2022]
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47
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Kouda S, Dakeshita T, Hara S, Wakimoto K, Uchida Y. Changes in quantitative elasticity in muscle tissue and muscle flexibility on biceps femoris muscle due to stretching exercise. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.3330] [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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Mise K, Hoshino J, Ueno T, Imafuku A, Kawada M, Sumida K, Hiramatsu R, Hasegawa E, Yamanouchi M, Hayami N, Suwabe T, Sawa N, Fujii T, Hara S, Ohashi K, Takaichi K, Ubara Y. Impact of tubulointerstitial lesions on anaemia in patients with biopsy-proven diabetic nephropathy. Diabet Med 2015; 32:546-55. [PMID: 25400024 PMCID: PMC4407915 DOI: 10.1111/dme.12633] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/12/2014] [Indexed: 12/25/2022]
Abstract
AIMS To investigate the relationship between the progression of anaemia and renal pathological findings in patients with diabetic nephropathy. METHODS A total of 223 patients with diabetes underwent renal biopsy from 1985 to 2010 and were confirmed to have pure diabetic nephropathy according to the recent classification, of whom 113 (baseline haemoglobin ≥ 11 g/dl) were enrolled in the study. Linear regression analysis was used to estimate the changes in haemoglobin levels during the follow-up period. RESULTS In a multivariate model adjusted for clinical and histopathological variables, higher interstitial fibrosis and tubular atrophy scores were more strongly associated with a decrease in haemoglobin levels than were lower scores. Compared with an interstitial fibrosis and tubular atrophy score of 0, the standardized coefficients for interstitial fibrosis and tubular atrophy scores of 1, 2 and 3 were 0.20 (95% CI -0.31 to 0.93), 0.34 (95% CI -0.22 to 1.34) and 0.47 (95% CI 0.07 to 1.96), respectively, whereas a higher glomerular class, a higher vascular lesion score and the presence of exudative lesions were not strongly correlated with the decrease in haemoglobin. CONCLUSIONS Tubulointerstitial lesions that are more advanced are significantly associated with the progression of anaemia in patients with diabetic nephropathy after adjustment for numerous covariates. This finding suggests that tubulointerstitial lesions may be a useful prognostic indicator for anaemia in patients with diabetic nephropathy, and that decreased erythropoietin production attributable to the progression of tubulointerstitial lesions is a major cause of anaemia in these patients.
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Affiliation(s)
- K Mise
- Nephrology Centre, Toranomon HospitalTokyo, Japan
- Correspondence to: Koki Mise. E-mail:
| | - J Hoshino
- Nephrology Centre, Toranomon HospitalTokyo, Japan
| | - T Ueno
- Nephrology Centre, Toranomon HospitalTokyo, Japan
| | - A Imafuku
- Nephrology Centre, Toranomon HospitalTokyo, Japan
| | - M Kawada
- Nephrology Centre, Toranomon HospitalTokyo, Japan
| | - K Sumida
- Nephrology Centre, Toranomon HospitalTokyo, Japan
| | - R Hiramatsu
- Nephrology Centre, Toranomon HospitalTokyo, Japan
| | - E Hasegawa
- Nephrology Centre, Toranomon HospitalTokyo, Japan
| | - M Yamanouchi
- Nephrology Centre, Toranomon HospitalTokyo, Japan
| | - N Hayami
- Nephrology Centre, Toranomon HospitalTokyo, Japan
| | - T Suwabe
- Nephrology Centre, Toranomon HospitalTokyo, Japan
| | - N Sawa
- Nephrology Centre, Toranomon HospitalTokyo, Japan
| | - T Fujii
- Department of Pathology, Toranomon HospitalTokyo, Japan
| | - S Hara
- Nephrology Centre, Toranomon HospitalTokyo, Japan
- Okinaka Memorial Institute for Medical Research, Toranomon HospitalTokyo, Japan
| | - K Ohashi
- Department of Pathology, Toranomon HospitalTokyo, Japan
- Department of Pathology, Yokohama City University Graduate School of MedicineKanagawa, Japan
| | - K Takaichi
- Nephrology Centre, Toranomon HospitalTokyo, Japan
- Okinaka Memorial Institute for Medical Research, Toranomon HospitalTokyo, Japan
| | - Y Ubara
- Nephrology Centre, Toranomon HospitalTokyo, Japan
- Okinaka Memorial Institute for Medical Research, Toranomon HospitalTokyo, Japan
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Yoshizawa S, Heianza Y, Arase Y, Saito K, Hsieh SD, Tsuji H, Hanyu O, Suzuki A, Tanaka S, Kodama S, Shimano H, Hara S, Sone H. Comparison of different aspects of BMI history to identify undiagnosed diabetes in Japanese men and women: Toranomon Hospital Health Management Center Study 12 (TOPICS 12). Diabet Med 2014; 31:1378-86. [PMID: 24750392 DOI: 10.1111/dme.12471] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [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] [Received: 05/23/2013] [Revised: 12/24/2013] [Accepted: 04/10/2014] [Indexed: 11/27/2022]
Abstract
AIMS To examine current BMI and various aspects of BMI history as pre-screening tools for undiagnosed diabetes in Japanese individuals. METHODS This cross-sectional study included 16 226 men and 7026 women aged 30-75 years without a self-reported history of clinician-diagnosed diabetes. We estimated the probability of having undiagnosed diabetes (fasting glucose ≥ 7.0 mmol/l and/or HbA1c ≥ 48 mmol⁄mol (≥ 6.5%) for the following variables: current BMI, BMI in the early 20s (BMI(20y)), lifetime maximum BMI (BMI(max)), change between BMI in the early 20s and current BMI (ΔBMI(20y-cur)), change between BMI in the early 20s and maximum BMI (ΔBMI(20y-max)), and change between lifetime maximum and current BMI (ΔBMI(max-cur)). RESULTS The prevalence of undiagnosed diabetes was 3.3% (771/23252) among participants. BMI(max) , ΔBMI(20y-max) and current BMI (1-sd increments) were more strongly associated with diabetes than the other factors (multivariate odds ratio 1.58 [95% CI 1.47-1.70] in men and 1.65 [95% CI 1.43-1.90] in women for BMI(max) ; multivariate odds ratio 1.47 [95% CI 1.37-1.58] in men and 1.61 [95% CI 1.41-1.84] in women for ΔBMI(20y-max) ; multivariate odds ratio 1.47 [95% CI 1.36-1.58] in men and 1.63 [95% CI 1.40-1.89] in women for current BMI). The probability of having diabetes was markedly higher in those with both the highest tertile of BMI(max) and greatest ΔBMI(20y-max) ; however, a substantially lower likelihood of diabetes was observed among individuals with the lowest and middle tertiles of current BMI (< 24.62 kg/m² in men and < 22.54 kg/m² in women). CONCLUSIONS Lifetime maximum BMI and BMI changes from early adulthood were strongly associated with undiagnosed diabetes. Adding BMI history to people's current BMI would improve the identification of individuals with a markedly higher probability of having undiagnosed diabetes.
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Affiliation(s)
- S Yoshizawa
- Department of Internal Medicine, Niigata University Faculty of Medicine, Niigata, Japan
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Hara S, Kobayashi M, Kuriiwa F, Mukai T, Mizukami H. Different mechanisms of hydroxyl radical production susceptible to purine P2 receptor antagonists between carbon monoxide poisoning and exogenous ATP in rat striatum. Free Radic Res 2014; 48:1322-33. [PMID: 25096805 DOI: 10.3109/10715762.2014.951842] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Previous studies have suggested that carbon monoxide (CO) poisoning stimulates cAMP production via purine P2Y11-like receptors in the rat striatum, activating cAMP signaling pathways, resulting in hydroxyl radical ((•)OH) production. Extracellular ATP was thought likely to trigger the cascade, but the present study has failed to demonstrate a clear increase in the extracellular ATP due to CO poisoning. The CO-induced (•)OH production was attenuated by the P2Y11 receptor antagonist NF157, in parallel with its abilities to suppress the CO-induced cAMP production. The (•)OH production was more strongly suppressed by a non-selective P2 receptor antagonist, PPADS, which had no effect on cAMP production. More selective antagonists toward the respective P2 receptors susceptible to PPADS, including NF279, had little or no effect on the CO-induced (•)OH production. The intrastriatal administration of exogenous ATP dose-dependently stimulated (•)OH production, which was dose-dependently antagonized by PPADS and NF279 but not by NF157. Exogenous GTP and CTP dose-dependently stimulated (•)OH production, though less potently. The GTP-induced (•)OH production was susceptible to both of NF279 and PPADS, but the CTP-induced (•)OH production was resistant to PPADS. The mechanism of (•)OH production may differ between CO poisoning and exogenous ATP, while multiple P2 receptors could participate in (•)OH production. The CO-induced (•)OH production was susceptible to the inhibition of NADPH oxidase, but not xanthine oxidase. Also, the NADPH oxidase inhibition suppressed (•)OH production induced by forskolin, a stimulator of intracellular cAMP formation. It is likely that (•)OH is produced by NADPH oxidase activation via cAMP signaling pathways during CO poisoning.
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Affiliation(s)
- S Hara
- Department of Forensic Medicine, Tokyo Medical University , Tokyo , Japan
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