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Endo T, Iida M, Ichihashi Y, Oishi M, Ikenoue S, Kasuga Y, Sato T, Hida M, Ishii T, Asanuma H, Hasegawa T, Tanaka M, Ochiai D. Fetal growth restriction and a single umbilical artery are independent predictors of hypospadias during pregnancy. Placenta 2022; 130:53-59. [DOI: 10.1016/j.placenta.2022.11.001] [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] [Received: 06/07/2022] [Revised: 09/14/2022] [Accepted: 11/02/2022] [Indexed: 11/08/2022]
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Kogure Y, Kada A, Hashimoto H, Atagi S, Takiguchi Y, Saka H, Ebi N, Inoue A, Kurata T, Fujita Y, Nishii Y, Shibayama T, Itani H, Endo T, Yamamoto N, Gemma A. 1160P Survival impact of second-line immune checkpoint inhibitors in the elderly patients with advanced squamous non-small cell lung cancer: Post-hoc analysis from a CAPITAL study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Shimokawa M, Kanazu M, Saito R, Mori M, Tamura A, Okano Y, Fujita Y, Endo T, Motegi M, Takata S, Kita T, Sukoh N, Takenoyama M, Atagi S. 64P Clinical benefit of platinum doublet therapy for elderly patients with advanced non-small cell lung cancer: A prospective multicenter study of the national hospital organization in Japan. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.02.073] [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: 11/15/2022] Open
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Tamagawa M, Kasuga Y, Saisho Y, Tanaka Y, Hasegawa K, Oishi M, Endo T, Sato Y, Ikenoue S, Tanaka M, Ochiai D. Predictors of later insulin therapy for gestational diabetes diagnosed in early pregnancy. Endocr J 2021; 68:1321-1328. [PMID: 34108310 DOI: 10.1507/endocrj.ej21-0118] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Interventions for gestational diabetes mellitus (GDM), diagnosed in early pregnancy, have been a topic of controversy. This study aimed to elucidate factors that predict patients with GDM diagnosed before 24 gestational weeks (early GDM: E-GDM) who require insulin therapy later during pregnancy. Furthermore, we identified patients whose impaired glucose tolerance should be strictly controlled from early gestation onward. Women diagnosed with GDM were categorized based on the gestational age at diagnosis into E-GDM (n = 388) or late GDM (L-GDM, diagnosed after 24 weeks, n = 340) groups. Clinical features were compared between the groups, and the predictors for insulin therapy was evaluated in the E-GDM group. There were no significant between-group differences in terms of perinatal outcomes (e.g., gestational weeks at delivery, fetal growth, hypertensive disorder of pregnancy), with the exception of the Apgar score at 5 min. Moreover, there was no significant difference in the frequency of insulin therapy during pregnancy between the two groups. Using multiple logistic regression analysis, pre-pregnancy body mass index (BMI) ≥25 kg/m2, a family history of diabetes, and higher fasting plasma glucose (FPG), 1 h-plasma glucose (PG), and 2 h-PG values increased insulin therapy risk during pregnancy in the E-GDM group. Furthermore, since E-GDM patients with abnormal levels of FPG, as well as 1 h-PG or 2 h-PG, and those with pre-pregnancy BMI ≥25 kg/m2 and a family history of diabetes had a higher risk of later insulin therapy during pregnancy, they may require more careful follow-up in the perinatal period.
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Affiliation(s)
- Masumi Tamagawa
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Yoshifumi Kasuga
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Yoshifumi Saisho
- Department of Internal Medicine, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Yuya Tanaka
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Keita Hasegawa
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Maki Oishi
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Toyohide Endo
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Yu Sato
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Satoru Ikenoue
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Mamoru Tanaka
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Daigo Ochiai
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, 160-8582, Japan
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Ochiai D, Endo T, Oishi M, Kasuga Y, Ikenoue S, Tanaka M. Vasa previa with fetal vessels running transversely across the cervix: a diagnostic pitfall. Ultrasound Obstet Gynecol 2021; 58:485-486. [PMID: 32991754 DOI: 10.1002/uog.23133] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/12/2020] [Accepted: 09/15/2020] [Indexed: 06/11/2023]
Affiliation(s)
- D Ochiai
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - T Endo
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - M Oishi
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - Y Kasuga
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - S Ikenoue
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - M Tanaka
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
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Endo T, Maekawa F, Tohyama C. Development of an automated cognitive behavioral testing method for juvenile mice in a group-housed environment and its application to developmental neurotoxicological study. Toxicol Lett 2021. [DOI: 10.1016/s0378-4274(21)00570-1] [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: 10/20/2022]
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Kasuga Y, Ikenoue S, Tanaka Y, Tamagawa M, Hasegawa K, Oishi M, Endo T, Sato Y, Tanaka M, Ochiai D. Expectant management for early pregnancy miscarriage after radical trachelectomy: A single hospital-based study. Acta Obstet Gynecol Scand 2021; 100:1322-1325. [PMID: 33797065 DOI: 10.1111/aogs.14158] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 03/14/2021] [Accepted: 03/27/2021] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Women who have undergone radical trachelectomy as a fertility-sparing treatment for early-stage cervical cancer may be at higher risk for retained tissues after early-term miscarriage due to cervical cerclage or cervical necrosis. Dilatation and curettage or aspiration may present additional risks in these women. The aim of this study was to assess the efficacy of expectant management for early pregnancy miscarriage after radical trachelectomy. MATERIAL AND METHODS Keio University Hospital records were reviewed for women who conceived after abdominal radical trachelectomy and received perinatal care between 1 April 2012 and 31 March 2020. A total of 62 women (76 pregnancies) were identified, and 13 of these women experienced miscarriage before 12 gestational weeks. The management and outcome of these cases were reviewed in detail. RESULTS The median maternal age at miscarriage was 39 years (range 31-42 years) and the median duration from abdominal radical trachelectomy to conception was 2.60 years (range 0.49-7.30 years). Cervical necrosis before conception occurred in one case (8%). One patient requested treatment with aspiration and the remaining 12 cases were managed with observation for a median of 23 days (range 7-50 days). There were no cases of endometritis or cases requiring dilatation and curettage for residue tissue. Further, no cases developed laceration of the residual cervix and no loss of cerclage sutures after discharge was noted. CONCLUSIONS Expectant management seems to be safe and appropriate for first trimester miscarriage after abdominal radical trachelectomy.
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Affiliation(s)
- Yoshifumi Kasuga
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Satoru Ikenoue
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Yuya Tanaka
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Masumi Tamagawa
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Keita Hasegawa
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Maki Oishi
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Toyohide Endo
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Yu Sato
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Mamoru Tanaka
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Daigo Ochiai
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
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Ikenoue S, Hasegawa K, Tamagawa M, Oishi M, Endo T, Kasuga Y, Ochiai D, Tanaka M. 483 Sonographic prediction of placental invasion in placenta previa using placenta accreta index. Am J Obstet Gynecol 2021. [DOI: 10.1016/j.ajog.2020.12.504] [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: 10/22/2022]
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Abstract
Based on epidemiological and experimental evidence, the origins of childhood obesity and early onset metabolic syndrome can be extended back to developmental processes during intrauterine life. It is necessary to actively investigate antecedent conditions that affect fetal growth by developing reliable measures to identify variations in fetal fat deposition and body composition. Recently, the resolution of ultrasonography has remarkably improved, which enables better tissue characterization and quantification of fetal fat accumulation. In addition, fetal fractional limb volume has been introduced as a novel measure to quantify fetal soft tissue volume, including fat mass and lean mass. Detecting extreme variations in fetal fat deposition may provide further insights into the origins of altered fetal body composition in pathophysiological conditions (i.e., fetal growth restriction or fetal macrosomia), which are predisposed to the metabolic syndrome in later life. Further studies are warranted to determine the maternal or placental factors that affect fetal fat deposition and body composition. Elucidating these factors may help develop clinical interventions for altered fetal growth and body composition, which could potentially lead to primary prevention of the future risk of metabolic dysfunction.
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Kasuga Y, Ochiai D, Tamagawa M, Oishi M, Endo T, Sato Y, Iida M, Ikenoue S, Tanaka M. A safe delivery system to prevent COVID-19 transmission without negative-pressure isolation delivery rooms: Experience from a hospital with nosocomial outbreak. Taiwan J Obstet Gynecol 2020; 60:183-184. [PMID: 33495000 PMCID: PMC7833574 DOI: 10.1016/j.tjog.2020.12.001] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/27/2020] [Indexed: 11/23/2022] Open
Affiliation(s)
- Yoshifumi Kasuga
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.
| | - Daigo Ochiai
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Masumi Tamagawa
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Maki Oishi
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Toyohide Endo
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Yu Sato
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Miho Iida
- Department of Preventive Medicine and Public Health, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Satoru Ikenoue
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Mamoru Tanaka
- Department of Obstetrics and Gynecology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
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Shimokawa M, Kanazu M, Saito R, Mori M, Tamura A, Okano Y, Fujita Y, Endo T, Motegi M, Takata S, Kita T, Sukoh N, Takenoyama M, Atagi S. 1375P Predicting chemotherapy toxicity in elderly patients with advanced non-small cell lung cancer: A prospective multicenter study of the national hospital organization in Japan. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1689] [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: 11/30/2022] Open
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Iwasaki Y, Takeshima Y, Nakano M, Ota M, Nagafuchi Y, Suzuki A, Kochi Y, Okamura T, Endo T, Miki I, Sakurada K, Yamamoto K, Fujio K. THU0225 INTEGRATIVE PLASMA METABOLOME AND TRANSCRIPTOME ANALYSIS REVEALED THE IMPORTANCE OF HISTIDINE HOMEOSTASIS IN SLE PATHOGENESIS WITH POTENTIAL FOR IMPROVED SLE PATIENTS STRATIFICATION. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.183] [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, immunometabolism has gathered attention of many immunologists. It has been widely recognized that metabolic reprogramming in each immune cell brings different effects on different cells and is important for regulating their functions. Along with the progress of statistical genetics, serum metabolites were shown to be under genetic regulations1). Metabolic changes are now considered not only to be mere phenotypes of cells but also to be key factors for controlling immune cell differentiation, proliferation and function through regulating gene expressions eventually. Although genome-wide association studies have brought deep insights into SLE pathogenesis, the precise pathway from genome to metabolome has been largely unknown, and vice versa.Objectives:The aim of this study is to investigate metabolomic regulation in SLE in relation to gene expressions by integrating plasma metabolome data and transcriptome data.Methods:We collected plasma samples from patients with SLE (n=57) who met the 1997 American College of Rheumatology criteria for SLE. Gender- and age-matched healthy controls (HCs) (n=56) were recruited. Metabolic profiles focusing on 39 amino acids were analyzed with liquid chromatography (LC)-mass spectrometry. Transcriptome data of SLE patients were obtained from our RNA-sequencing data of each immune cell subset (total 19 subsets). Whole-genome sequencing was also performed.Results:Our previous experiment showed that about 160 peaks were detected from comprehensive LC-TOFMS and amino acids were useful for distinguishing SLE patients from HCs. Both partial least squares discriminant analysis (PLS-DA) and random forest, a machine learning algorithm, revealed the importance of histidine (His), one of the essential amino acids, to classify SLE patients from HCs, whose plasma level was lower in SLE patients. In addition, inverse correlation between His level and titer of ds-DNA as well as damage index (SDI) was detected. His level was correlated neither with PSL dosage nor with type I interferon (IFN) signature. Receiver operating characteristic (ROC) analysis showed the best predictability for SLE with the combination of specific amino acids including His. Our transcriptome analysis has revealed the significance of oxidative phosphorylation (OXPHOS) in B cells for SLE pathogenesis. Interestingly, OXPHOS signature was inversely correlated with His level in SLE B cells.Conclusion:His may be an important factor for SLE pathogenesis especially in B cells independently from IFN signal. SLC15A4, a transporter of His on lysosome, is one of the SLE GWAS SNPs and has been reported to play an important role in IFN production in B cells through regulation of TLR7/9 activation 2). We also identified that SLE patients with risk allele of SLC15A4 had tendency to show higher plasma His level, indicating His homeostasis could become a novel treatment target for SLE. Moreover, the inverse correlation of His level to SDI as well as OXPHOS signature suggests that His might play a key role for promoting organ damages in SLE.References:[1]Nat Genet.2017;49:568. 2)Immunity. 2014;41:375. 3)Semin Arthritis Rheum.2019;48:1142Disclosure of Interests: :Yukiko Iwasaki: None declared, Yusuke Takeshima: None declared, Masahiro Nakano: None declared, Mineto Ota: None declared, Yasuo Nagafuchi: None declared, Akari Suzuki: None declared, Yuta Kochi: None declared, Tomohisa Okamura: None declared, Takaho Endo: None declared, Ichiro Miki: None declared, Kazuhiro Sakurada: None declared, Kazuhiko Yamamoto Grant/research support from: Astellas, BMS, MitsubishiTanabe, Pfizer, Ayumi, Takeda, Chugai, Eisai, Taisho Toyama, UCB, and ImmunoFuture, Keishi Fujio Grant/research support from: Astellas, BMS, MitsubishiTanabe, Pfizer, Ayumi, Takeda, Chugai, Eisai, Taisho Toyama, Eli Lilly, Sanofi, and UCB
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Akiba Y, Ikenoue S, Endo T, Kasuga Y, Ochiai D, Miyakoshi K, Ishii R, Yakubo K, Tanaka M. Differences in fetal fractional limb volume changes in normal and gestational diabetic pregnancies: an exploratory observational study. BJOG 2020; 128:329-335. [PMID: 32298518 DOI: 10.1111/1471-0528.16265] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/07/2020] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Fetal fractional limb volume has been proposed as a useful measure for quantifying fetal soft tissue development. The aim of this study was to investigate the growth of fractional arm volume (AVol) and fractional thigh volume (TVol) of fetuses with maternal gestational diabetes (GDM) compared with those of fetuses with normal glucose tolerance (NGT). We hypothesised fetal fractional limb volume would be larger in the GDM group than in the NGT group in late gestation. DESIGN Exploratory observational study. SETTING Saitama Municipal Hospital. SAMPLE A total of 165 (125 NGT and 40 GDM) singleton Japanese pregnant women. METHODS AVol and TVol were assessed between 20 and 37 weeks' gestation as cylindrical limb volumes based on 50% of the fetal humeral or femoral diaphysis length. Women were diagnosed as GDM based on the criteria of the Japan Society of Obstetrics and Gynecology. MAIN OUTCOME MEASURES AVol and TVol were compared between women with NGT and those with GDM at each gestational age period (2-week intervals from 20 to 37 weeks' gestation). RESULTS Overall, 287 ultrasound scans were performed (NGT group, 205 scans; GDM group, 82 scans). There was no significant difference of AVol between the groups before 32 weeks' gestation. AVol was significantly larger in the GDM group than in the NGT group after 32 weeks' gestation (P < 0.05). TVol was not statistically different between the groups across gestation. CONCLUSIONS Detection of variations in fetal AVol may provide greater insight into understanding the origins of altered fetal body proportion in GDM. TWEETABLE ABSTRACT AVol, but not TVol, is significantly larger in fetuses with GDM than in those with NGT after 32 weeks' gestation.
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Affiliation(s)
- Y Akiba
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan.,Department of Obstetrics and Gynecology, Saitama Municipal Hospital, Saitama, Japan
| | - S Ikenoue
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - T Endo
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan.,Department of Obstetrics and Gynecology, Saitama Municipal Hospital, Saitama, Japan
| | - Y Kasuga
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - D Ochiai
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - K Miyakoshi
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
| | - R Ishii
- Biostatistics Unit, Clinical and Translational Research Center, Keio University School of Medicine, Tokyo, Japan
| | - K Yakubo
- Department of Obstetrics and Gynecology, Saitama Municipal Hospital, Saitama, Japan
| | - M Tanaka
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Tokyo, Japan
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Ikenoue S, Akiba Y, Endo T, Kasuga Y, Ochiai D, Miyakoshi K, Yakubo K, Tanaka M. 537: Sonographic evaluation of fetal fractional limb volume across gestation in gestational diabetes. Am J Obstet Gynecol 2020. [DOI: 10.1016/j.ajog.2019.11.553] [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: 11/16/2022]
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Ida H, Adachi T, Kawamoto T, Watanabe Y, Endo T, Shinke T, Sagara H. A case of excessive daytime sleepiness without sleep Apnea in obese boy with Prader-Willi syndrome. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Kusaka K, Tamura A, Kozuki T, Koreeda Y, Kita T, Endo T, Shibayama T, Hatakeyama N, Miura M, Yamashita N, Takenoyama M. Randomized trial of prophylactic minocycline for erlotinib-associated skin rash in non-small cell lung cancer (PEARL trial). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz437.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Shimada M, Kanazu M, Shimokawa M, Saito R, Mori M, Tamura A, Okano Y, Fujita Y, Endo T, Motegi M, Takata S, Kita T, Sukoh N, Takenoyama M, Atagi S. Clinical outcomes in elderly patients with advanced non-small cell lung cancer: A prospective multicenter study of the National Hospital Organization in Japan. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz437.041] [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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Kato T, Higuma T, Yokota T, Kudo N, Yokono Y, Senoo M, Narita N, Endo T, Nishizaki F, Shibutani S, Hanada K, Tomita H. P856Incidence and Outcomes of irregular protrusion after stent implantation in patients with acute myocardial infarction: An in in vivo optical coherence tomography study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Irregular protrusion, a protrusion of material with an irregular surface into the lumen of the vessel after stent implantation, can only be identified by optical coherence tomography (OCT). A previous study demonstrated that irregular protrusion after stent implantation was an independent predictor of 1-year major adverse cardiac events (MACE) in CAD patients. However, the true incidence and prognostic significance of irregular protrusion after stenting in patients with ST-segment elevation myocardial infarction (STEMI) have not previously examined.
Aims
The aims of this study were the following: 1) to evaluate the incidence of irregular protrusion detected by OCT in STEMI patients after stenting; and 2) to compare the long-term outcomes between patients with and without irregular protrusion.
Methods and results
A total of 210 STEMI patients who had post-procedure OCT imaging after coronary stenting within 12 hours after symptom onset were studied. We divided them into two groups: those with irregular protrusion (n=159) and those without (n=51) after stenting. There were no significant differences in baseline characteristics between the 2 groups except that peak CK-MB levels were higher in patients with irregular protrusion than those without (289 (137–563) vs. 260 (63–349) U/L, p<0.05). During mean follow-up period of 298 days, the overall incidence of MACE defined as cardiac death, target vessel-related myocardial infarction, and target lesion revascularization was 15.3%. Kaplan-Meier curve showed that the incidence of MACE did not differ between patients with and without irregular protrusion (14.7% vs. 17.7%, p=0.53 by Log-rank).
Conclusions
Irregular protrusion after stent implantation was detected in three-fourth of STEMI patients. Although patients with irregular protrusion had a greater myocardial damage, it did not influence clinical outcomes.
Acknowledgement/Funding
Donation course from Abbott Japan
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Affiliation(s)
- T Kato
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Higuma
- St. Marianna University, Cardiology, Kawasaki, Japan
| | - T Yokota
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - N Kudo
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Y Yokono
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - M Senoo
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - N Narita
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Endo
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - F Nishizaki
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - S Shibutani
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - K Hanada
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - H Tomita
- Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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Hibi K, Kozuma K, Sonoda S, Endo T, Tanaka H, Koshida R, Ishihara T, Kume T, Tanabe K, Morino Y, Ikari Y, Fujii K, Yamanaka T, Kimura K, Isshiki T. P2810Clinical outcomes 1 year after filter protection during percutaneous coronary intervention in patients with attenuated plaque identified by intravascular ultrasound. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.1122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
In the VAMPIRE 3 (VAcuuM asPIration thrombus REemoval 3) trial, we have previously shown that selective use of distal filter protection during percutaneous coronary intervention (PCI) decreased the incidence of no-reflow phenomenon and was associated with fewer in-hospital serious adverse cardiac events than conventional PCI in patients with attenuated plaque ≥5mm. However, whether the early efficacy of distal embolic protection translate into long term clinical benefit is unknown.
Methods
Patients with acute coronary syndrome (ACS) with attenuated plaque ≥5mm were assigned to distal protection (DP) (n=98) or conventional treatment (CT) (n=96). The primary end point of the incidence of no-reflow phenomenon during PCI and the secondary end point of in-hospital serious adverse cardiac events has been reported previously. The rate of a major adverse events, a composite of death from any cause, non-fatal myocardial infarction, or unplanned target vessel revascularization (TVR) at 1 year was the prespecified secondary end point of the trial. All clinical endpoint events were adjudicated by an independent Clinical Event Committee.
Results
Major adverse events at 1 year occurred in 12 patients (12.2%) in the DP group and in 3 patients (3.1%) in the CT group (P=0.029). The difference was driven by a higher risk of TVR (11 [11.2%] vs. 2 [2.1%], p=0.018) in the DP group compared with the CT group. In patients treated with bare metal stents (n=42), major adverse events occurred in 25.0% of the patients in the DP group and in none of the patients in the CT group (P=0.029), whereas in patients treated with drug eluting stents (n=152), rates of major adverse events were similar between the groups (8.1% vs. 3.9%, p=0.32). Rates of cardiac death were not significantly different (1.0% vs. 1.0%, p=1.00). No definite stent thrombosis was observed in either group.
Conclusions
In the VAMPIRE 3 trial of patients with ACS with attenuated plaque ≥5mm, the 1-year rates of major adverse events in the distal protection group were higher than in the conventional treatment group. This effect could be mitigated by the use of drug eluting stents.
Acknowledgement/Funding
This work was supported in part by a grant from Nipro, Boston Scientific Corporation, and Japan Lifeline.
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Affiliation(s)
- K Hibi
- Yokohama City University Medical Center, Yokohama, Japan
| | - K Kozuma
- Teikyo University School of Medicine, Division of Cardiology, Tokyo, Japan
| | - S Sonoda
- University of Occupational and Environmental Health, Second Department of Internal Medicine, School of Medicine, Kitakyushu, Japan
| | - T Endo
- Saiseikai Yokohamashi Nanbu Hospital, Division of Cardiology, Yokohama, Japan
| | - H Tanaka
- Tokyo Metropolitan Tama Medical Center, Department of Cardiology, Tokyo, Japan
| | - R Koshida
- Toyohashi Heart Center, Department of Cardiovascular Medicine, Toyohashi, Japan
| | - T Ishihara
- Kansai Rosai Hospital, Cardiovascular Center, Amagasaki, Japan
| | - T Kume
- Kawasaki Medical School, Department of Cardiology, Okayama, Japan
| | - K Tanabe
- Mitsui Memorial Hospital, Division of Cardiology, Tokyo, Japan
| | - Y Morino
- Iwate Medical University School of Medicine, Division of Cardiology, Department of Internal Medicine, Morioka, Japan
| | - Y Ikari
- Tokai University, Department of Cardiology, Isehara, Japan
| | - K Fujii
- Sakurabashi-Watanabe Hospital, Department of Cardiology, Osaka, Japan
| | - T Yamanaka
- Yokohama City University, Department of Biostatistics, Yokohama, Japan
| | - K Kimura
- Yokohama City University Medical Center, Yokohama, Japan
| | - T Isshiki
- Ageo Central General Hospital, Division of Cardiology, Ageo, Japan
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Kanazu M, Shimokawa M, Saito R, Mori M, Tamura A, Okano Y, Fujita Y, Endo T, Motegi M, Takata S, Kita T, Sukoh N, Takenoyama M, Atagi S. Predicting chemotherapy toxicity in elderly patients with advanced non-small cell lung cancer: A prospective multicenter study of the National Hospital Organization in Japan. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz260.093] [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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21
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Izaki S, Toyoshima S, Endo T, Hayama K, Okayama Y, Terui T. 014 Differentiation between control subjects and patients with chronic spontaneous urticaria based on the ability of anti-IgE autoantibodies to induce FcεRI crosslinking, as compared to anti-FcεRIα autoantibodies. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.017] [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: 10/26/2022]
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22
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Shigematsu A, Ota S, Kobayashi R, Kondo T, Endo T, Tsutsumi Y, Kobayashi H, Kakinoki Y, Yamamoto S, Konuma Y, Miyagishima T, Igarashi T, Oda T, Sakai H, Ishihara T, Yoshida M, Nagashima T, Sato K, Kanisawa Y, Haseyama T, Hirayama Y, Kurosawa M. PF184 EFFICACY OF CONSOLIDATION CHEMOTHERAPY FOR PATIENTS WITH ACUTE LYMPHOBLASTIC LEUKEMIA WHO ACHIEVED COMPLETE REMISSION BY FIRST COURSE OF REMISSION INDUCTION THERAPY. Hemasphere 2019. [DOI: 10.1097/01.hs9.0000558952.18518.ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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23
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Adachi Y, Akino K, Nojima M, Himori R, Kikuchi T, Mita H, Nakamura M, Tsukuda H, Yamano HO, Sasaki Y, Yoshida Y, Kato Y, Nakase H, Endo T. Prognostic nutritional index and early mortality with percutaneous endoscopic gastrostomy. QJM 2018; 111:635-641. [PMID: 29939360 DOI: 10.1093/qjmed/hcy137] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 04/08/2018] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Although percutaneous endoscopic gastrostomy (PEG) is a well-accepted and less invasive method of feeding tube placement in patients with swallowing difficulties, complications and early death after PEG have been reported. AIM This study aimed to evaluate predictive factors associated with 30-day mortality after PEG, and to assess the utility of nutritional supporting period before PEG in reducing early mortality following PEG. DESIGN An observational study. METHODS We retrospectively analyzed 268 patients who underwent PEG at Sapporo Shirakaba-dai Hospital from 2006 to 2010, using clinical and laboratory data to analyze predictive factors associated with early death after PEG. Then, we prospectively assessed 152 consecutive patients assessed for eligibility for PEG from 2011 to 2014. We assessed the patients' nutritional condition using Onodera's prognostic nutritional index (PNI), and supported nutrition for more than 10 days before PEG in patients with a poor nutritional index (PNI < 37). RESULTS In both univariate and multivariate analyses in the retrospective study, Onodera's PNI of less than 37 was the only predictive factor for early mortality. In the second study, among the 115 patients who finally underwent PEG, early mortality rates improved to 1.7% from 5.2% in the first study. Conversely, 32% of patients with malnutrition who did not undergo PEG died within 30 days. CONCLUSION Nutritional status might be a predictive factor for early mortality after PEG. In patients with poor nutritional status, nutritional supporting period before PEG might improve the outcomes and reduce unnecessary PEG.
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Affiliation(s)
- Y Adachi
- From the Division of Gastroenterology, Department of Internal Medicine, Sapporo Shirakaba-dai Hospital, Sapporo, Japan
- Department of Gastroenterology, Sapporo Medical University, Sapporo, Japan
| | - K Akino
- From the Division of Gastroenterology, Department of Internal Medicine, Sapporo Shirakaba-dai Hospital, Sapporo, Japan
| | - M Nojima
- Center for Translational Research, The Institute of Medical Science Hospital, The University of Tokyo, Tokyo, Japan
| | - R Himori
- From the Division of Gastroenterology, Department of Internal Medicine, Sapporo Shirakaba-dai Hospital, Sapporo, Japan
| | - T Kikuchi
- From the Division of Gastroenterology, Department of Internal Medicine, Sapporo Shirakaba-dai Hospital, Sapporo, Japan
| | - H Mita
- From the Division of Gastroenterology, Department of Internal Medicine, Sapporo Shirakaba-dai Hospital, Sapporo, Japan
| | - M Nakamura
- From the Division of Gastroenterology, Department of Internal Medicine, Sapporo Shirakaba-dai Hospital, Sapporo, Japan
| | - H Tsukuda
- Department of Internal Medicine, Sapporo Shirakaba-dai Minami Hospital, Sapporo, Japan
| | - H-O Yamano
- Department of Gastroenterology, Sapporo Medical University, Sapporo, Japan
| | - Y Sasaki
- Department of Gastroenterology, Sapporo Medical University, Sapporo, Japan
| | - Y Yoshida
- From the Division of Gastroenterology, Department of Internal Medicine, Sapporo Shirakaba-dai Hospital, Sapporo, Japan
| | - Y Kato
- From the Division of Gastroenterology, Department of Internal Medicine, Sapporo Shirakaba-dai Hospital, Sapporo, Japan
| | - H Nakase
- Department of Gastroenterology, Sapporo Medical University, Sapporo, Japan
| | - T Endo
- From the Division of Gastroenterology, Department of Internal Medicine, Sapporo Shirakaba-dai Hospital, Sapporo, Japan
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24
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Izaki S, Toyoshima S, Nunomura S, Kanegae K, Kashiwakura J, Nakamura R, Nishimori N, Endo T, Akiyama H, Hayama K, Fujita H, Okayama Y, Terui T. 018 Statistically higher ability of aggregation of FcɛRI by autoantibody against FcɛRI α-chain and IgE of patients with chronic spontaneous urticaria compared with normal subjects. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.022] [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: 10/17/2022]
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25
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Kushida C, Ding F, Endo T, Satoh M. 0556 Effectiveness of a Nasopharyngeal Airway Stent for Treatment of Obstructive Sleep Apnea. Sleep 2018. [DOI: 10.1093/sleep/zsy061.555] [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: 11/13/2022] Open
Affiliation(s)
| | - F Ding
- Cleveland Clinic, Cleveland, OH
| | - T Endo
- Tokyo Sleep Medical Center, Tokyo, JAPAN
| | - M Satoh
- University of Tsukuba, Tsukuba, JAPAN
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26
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Nagakura T, Onda T, likura Y, Endo T, Nagakura H, Masaki T, Nagai H. In Vitro and in Vivo Antigen-Induced Release of High-Molecular Weight Neutrophil Chemotactic Activity from Human Nasal Tissue. ACTA ACUST UNITED AC 2018. [DOI: 10.2500/105065888781693221] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
High molecular weight neutrophil chemotactic activity has been identified in resected human nasal polyps, inferior turbinates, and nasal secretions following antigen challenge. The estimated molecular weight, by gel filtration chromatography, was approximately 600,000. However, a heterogeneity of molecular weight in some patients was recognized. Our results suggest a possible role for high molecular weight-neutrophil chemotactic activity in the pathogenesis of hypersensitivity in the human nasal cavity.
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Affiliation(s)
- T. Nagakura
- Department of Allergy, National Children's Medical Research Center, 3-35-31, Taishido, Setagaya-ku, Toyko 154, Japan
| | - T. Onda
- Department of Allergy, National Children's Medical Research Center, 3-35-31, Taishido, Setagaya-ku, Toyko 154, Japan
| | - Y. likura
- Department of Allergy, National Children's Medical Research Center, 3-35-31, Taishido, Setagaya-ku, Toyko 154, Japan
| | - T. Endo
- Department of Otorhinolaryngology, Jikei Medical School
| | - H. Nagakura
- Department of Otorhinolaryngology, Jikei Medical School
| | - T. Masaki
- Department of Pediatrics, Jikei Medical School
| | - H. Nagai
- Department of Pharmacology, Gifu Pharmaceutical University
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27
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28
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Hasuike Y, Endo T, Koroyasu M, Matsui M, Mori C, Yamadera M, Fujimura H, Sakoda S. Clinical features of Parkinson’s disease patients with small intestinal bacterial overgrowth. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Endo T, Shibata K, Kobayashi N, Yasuda M, Fujima Y, Norimatsu T. Experimental Characterization of Cooling-Induced Deformation of Polystyrene Shells. Fusion Science and Technology 2017. [DOI: 10.13182/fst02-a17908] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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30
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Tran VP, Tran HN, Yamamoto A, Endo T. Automated generation of burnup chain for reactor analysis applications. KERNTECHNIK 2017. [DOI: 10.3139/124.110671] [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: 11/20/2022]
Affiliation(s)
- V.-P. Tran
- Institute for Nuclear Science and Technology, VINATOM, 179 Hoang Quoc Viet, Hanoi, Vietnam
| | - H.-N. Tran
- Institute of Research and Development, Duy Tan University, K7/25 Quang Trung, Da Nang, Vietnam
| | - A. Yamamoto
- Department of Materials, Physics and Energy Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya-shi, 464-8603, Japan
| | - T. Endo
- Department of Materials, Physics and Energy Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya-shi, 464-8603, Japan
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31
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Toi M, Asao Y, Takada M, Kataoka M, Endo T, Kawashima M, Yamaga I, Nakayama Y, Tokiwa M, Fakhrejahani E, Torii M, Kawaguchi-Sakita N, Kanao S, Matsumoto Y, Yagi T, Sakurai T, Togashi K, Shiina T. Abstract P4-01-10: Development of photoacoustic vascular imaging system for breast cancer. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p4-01-10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background:
Tumor angiogenesis and hypoxia are associated with breast cancer growth and metastasis. Photoacoustic (PA) tomography is an optical imaging technology that visualizes distribution and oxygenation status of hemoglobin with high spatial resolution. Initially we developed a photoacoustic mammography (PAM) having a flat-shaped scanning detector that could detect breast tumors. Nevertheless, the flat-shaped detector array has the drawback of a limited view. Here we developed a novel PAM system with a hemispherical-shaped detector array (HDA), which enables us to identify microvasculatures non-invasively and allow the collection of nearly spatially isotropic three-dimensional reconstructed image of blood vessels. This non-invasive vascular imaging system may be able to characterize tumor angiogenesis and analyze the status of microcirculation. The aim of this study was to analyze the imaging findings of tumor-related vasculature in breast cancer patients.
Patients and method:
A PAM system with HDA has been generated in a cooperation project between Canon Inc., Japan, and Kyoto University. Twenty-two primary breast cancer patients, including 5 patients with non-invasive cancer and 17 patients with invasive cancer, diagnosed between December 2014 and December 2015 underwent the PAM imaging analysis. We also applied the breast deformation algorithm from the breast shape in a MRI image to that in a PA image in order to create a fusion image of the two modalities for the analysis. Features of peri- and intra-tumoral vasculature, and their oxygenation status were evaluated. The study protocol was approved by the institutional review board at Kyoto University Hospital (UMIN000012251). All patients provided informed consent to participate in this study.
Results:
The abnormal peri-tumoral vasculature was detected in 86% of all non-invasive and invasive disease cases. In invasive cancer cases, most tumor-related blood vessels were centripetally directed toward the tumor, and 93% of centripetal blood vessels appeared to be disrupted or rapidly narrowed at the tumor boundary. The centripetal blood vessel structure was frequently observed in invasive cancer compared with non-invasive cancer (61% vs 35%). PA images before and after preoperative chemotherapy were obtained in one case, where intra-tumoral blood vessels became finer after chemotherapy, reflecting normalization of intra-tumoral microcirculation induced by chemotherapy.
Conclusions:
A PAM system with HDA has provided a high-resolution vascular images of primary breast cancers. The morphological differences of peri-tumoral vasculature were observed between invasive disease and non-invasive disease. These results suggest the potential of PA imaging as a non-invasive tool to analyze tumor vasculature of human breast cancers and maybe be helpful for breast cancer diagnosis.
(Acknowledgements)
This work was partially supported by the Innovative Techno-Hub for Integrated Medical Bio-imaging Project of the Special Coordination Funds for Promoting Science and Technology from the Ministry of Education, Culture, Sports, Science, and Technology, Japan.
Citation Format: Toi M, Asao Y, Takada M, Kataoka M, Endo T, Kawashima M, Yamaga I, Nakayama Y, Tokiwa M, Fakhrejahani E, Torii M, Kawaguchi-Sakita N, Kanao S, Matsumoto Y, Yagi T, Sakurai T, Togashi K, Shiina T. Development of photoacoustic vascular imaging system for breast cancer [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P4-01-10.
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Affiliation(s)
- M Toi
- Graduate School of Medicine, Kyoto University, Kyoto, Japan; Medical Imaging System Development Center, Canon Inc., Tokyo, Japan
| | - Y Asao
- Graduate School of Medicine, Kyoto University, Kyoto, Japan; Medical Imaging System Development Center, Canon Inc., Tokyo, Japan
| | - M Takada
- Graduate School of Medicine, Kyoto University, Kyoto, Japan; Medical Imaging System Development Center, Canon Inc., Tokyo, Japan
| | - M Kataoka
- Graduate School of Medicine, Kyoto University, Kyoto, Japan; Medical Imaging System Development Center, Canon Inc., Tokyo, Japan
| | - T Endo
- Graduate School of Medicine, Kyoto University, Kyoto, Japan; Medical Imaging System Development Center, Canon Inc., Tokyo, Japan
| | - M Kawashima
- Graduate School of Medicine, Kyoto University, Kyoto, Japan; Medical Imaging System Development Center, Canon Inc., Tokyo, Japan
| | - I Yamaga
- Graduate School of Medicine, Kyoto University, Kyoto, Japan; Medical Imaging System Development Center, Canon Inc., Tokyo, Japan
| | - Y Nakayama
- Graduate School of Medicine, Kyoto University, Kyoto, Japan; Medical Imaging System Development Center, Canon Inc., Tokyo, Japan
| | - M Tokiwa
- Graduate School of Medicine, Kyoto University, Kyoto, Japan; Medical Imaging System Development Center, Canon Inc., Tokyo, Japan
| | - E Fakhrejahani
- Graduate School of Medicine, Kyoto University, Kyoto, Japan; Medical Imaging System Development Center, Canon Inc., Tokyo, Japan
| | - M Torii
- Graduate School of Medicine, Kyoto University, Kyoto, Japan; Medical Imaging System Development Center, Canon Inc., Tokyo, Japan
| | - N Kawaguchi-Sakita
- Graduate School of Medicine, Kyoto University, Kyoto, Japan; Medical Imaging System Development Center, Canon Inc., Tokyo, Japan
| | - S Kanao
- Graduate School of Medicine, Kyoto University, Kyoto, Japan; Medical Imaging System Development Center, Canon Inc., Tokyo, Japan
| | - Y Matsumoto
- Graduate School of Medicine, Kyoto University, Kyoto, Japan; Medical Imaging System Development Center, Canon Inc., Tokyo, Japan
| | - T Yagi
- Graduate School of Medicine, Kyoto University, Kyoto, Japan; Medical Imaging System Development Center, Canon Inc., Tokyo, Japan
| | - T Sakurai
- Graduate School of Medicine, Kyoto University, Kyoto, Japan; Medical Imaging System Development Center, Canon Inc., Tokyo, Japan
| | - K Togashi
- Graduate School of Medicine, Kyoto University, Kyoto, Japan; Medical Imaging System Development Center, Canon Inc., Tokyo, Japan
| | - T Shiina
- Graduate School of Medicine, Kyoto University, Kyoto, Japan; Medical Imaging System Development Center, Canon Inc., Tokyo, Japan
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Toi M, Asao Y, Matsumoto Y, Sekiguchi H, Yoshikawa A, Takada M, Kataoka M, Endo T, Kawaguchi-Sakita N, Kawashima M, Fakhrejahani E, Kanao S, Yamaga I, Nakayama Y, Tokiwa M, Torii M, Yagi T, Sakurai T, Togashi K, Shiina T. Visualization of tumor-related blood vessels in human breast by photoacoustic imaging system with a hemispherical detector array. Sci Rep 2017; 7:41970. [PMID: 28169313 PMCID: PMC5294462 DOI: 10.1038/srep41970] [Citation(s) in RCA: 147] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 12/28/2016] [Indexed: 12/19/2022] Open
Abstract
Noninvasive measurement of the distribution and oxygenation state of hemoglobin (Hb) inside the tissue is strongly required to analyze the tumor-associated vasculatures. We developed a photoacoustic imaging (PAI) system with a hemispherical-shaped detector array (HDA). Here, we show that PAI system with HDA revealed finer vasculature, more detailed blood-vessel branching structures, and more detailed morphological vessel characteristics compared with MRI by the use of breast shape deformation of MRI to PAI and their fused image. Morphologically abnormal peritumoral blood vessel features, including centripetal photoacoustic signals and disruption or narrowing of vessel signals, were observed and intratumoral signals were detected by PAI in breast cancer tissues as a result of the clinical study of 22 malignant cases. Interestingly, it was also possible to analyze anticancer treatment-driven changes in vascular morphological features and function, such as improvement of intratumoral blood perfusion and relevant changes in intravascular hemoglobin saturation of oxygen. This clinical study indicated that PAI appears to be a promising tool for noninvasive analysis of human blood vessels and may contribute to improve cancer diagnosis.
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Affiliation(s)
- M. Toi
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho Sakyo-ku, Kyoto 606-8507, Japan
| | - Y. Asao
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho Sakyo-ku, Kyoto 606-8507, Japan
- Medical Imaging System Development Center, Canon Inc., 3-30-2 Shimomaruko, Ohta-ku, Tokyo 146-8501, Japan
| | - Y. Matsumoto
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho Sakyo-ku, Kyoto 606-8507, Japan
| | - H. Sekiguchi
- Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho Sakyo-ku, Kyoto 6068507, Japan
| | - A. Yoshikawa
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho Sakyo-ku, Kyoto 606-8507, Japan
| | - M. Takada
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho Sakyo-ku, Kyoto 606-8507, Japan
| | - M. Kataoka
- Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho Sakyo-ku, Kyoto 6068507, Japan
| | - T. Endo
- Medical Imaging System Development Center, Canon Inc., 3-30-2 Shimomaruko, Ohta-ku, Tokyo 146-8501, Japan
| | - N. Kawaguchi-Sakita
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho Sakyo-ku, Kyoto 606-8507, Japan
| | - M. Kawashima
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho Sakyo-ku, Kyoto 606-8507, Japan
| | - E. Fakhrejahani
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho Sakyo-ku, Kyoto 606-8507, Japan
| | - S. Kanao
- Department of Diagnostic Imaging and Nuclear Medicine, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho Sakyo-ku, Kyoto 6068507, Japan
| | - I. Yamaga
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho Sakyo-ku, Kyoto 606-8507, Japan
| | - Y. Nakayama
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho Sakyo-ku, Kyoto 606-8507, Japan
| | - M. Tokiwa
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho Sakyo-ku, Kyoto 606-8507, Japan
| | - M. Torii
- Department of Breast Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho Sakyo-ku, Kyoto 606-8507, Japan
| | - T. Yagi
- Medical Imaging System Development Center, Canon Inc., 3-30-2 Shimomaruko, Ohta-ku, Tokyo 146-8501, Japan
| | - T. Sakurai
- Department of Diagnostic Pathology, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho Sakyo-ku, Kyoto 606-8507, Japan
| | - K. Togashi
- Medical Imaging System Development Center, Canon Inc., 3-30-2 Shimomaruko, Ohta-ku, Tokyo 146-8501, Japan
| | - T. Shiina
- Department of Human Health Science, Graduate School of Medicine, Kyoto University, 53 Shogoin-Kawaharacho Sakyo-ku, Kyoto 606-8507, Japan
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Hayasaka M, Ogasawara H, Hotta Y, Tsukagoshi K, Kimura O, Kura T, Tarumi T, Muramatsu H, Endo T. Nutritional assessment using stable isotope ratios of carbon and nitrogen in the scalp hair of geriatric patients who received enteral and parenteral nutrition formulas. Clin Nutr 2016; 36:1661-1668. [PMID: 27847116 DOI: 10.1016/j.clnu.2016.10.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 10/14/2016] [Accepted: 10/17/2016] [Indexed: 11/16/2022]
Abstract
BACKGROUND & AIMS The δ13C and δ15N values in the scalp hair of geriatric patients in Japan who received the enteral or parenteral nutrition formula were measured to assess nutritional status. METHODS The relations among δ13C, δ15N, calorie intake, BMI, albumin concentration, total cholesterol (T-CHO) and geriatric nutritional risk index (GNRI) in the patients were investigated. Furthermore, the enrichment of δ13C and δ15N from the nutrients to the hair was investigated. RESULTS The δ13C values in the hair of patients who received enteral nutrition decreased with decreases in the calories received, while the δ15N values increased, suggesting malnutrition in some patients with a low calorie intake due to a negative nitrogen balance. The distribution of patients with a low calorie intake (below 20 kcal/kg/day) when δ13C was plotted against δ15N differed from that of control subjects, but the distribution of patients with a high calorie intake (above 20 kcal/kg/day) was similar to that of control subjects. No significant differences were observed in BMI, albumin concentration, T-CHO or GNRI between the low and high calorie groups. The enrichment of δ13C and δ15N from the enteral nutrients to the hair were inversely correlated with the δ13C and δ15N in the enteral nutrients. The enrichment levels of δ13C and δ15N tended to be higher and lower, respectively, in the high calorie group. On the other hand, the δ13C and δ15N values in the hair of patients who received parenteral nutrition were higher and lower than those in the control subjects and in the patients who received enteral nutrition, respectively, reflecting the higher δ13C and lower δ15N contents of the parenteral nutrients. CONCLUSIONS The δ13C and δ15N values in the hair of patients who received enteral nutrition may be effective indicators for evaluating the long-term nutritional status of geriatric patients. A calorie intake of 20 kcal/kg/day may be a cut-off value for malnutrition in Japanese geriatric patients receiving enteral nutrition. However, caution is necessary when dealing with patients switching from parental nutrition as parenteral nutrition resulted in different changes in δ13C and δ15N. The enrichment levels of δ13C and δ15N from the enteral nutrients to the hair may be inversely correlated with the δ13C and δ15N values of enteral nutrients and vary according to the calorie intake.
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Affiliation(s)
- M Hayasaka
- Sapporo Higashi-Tokushukai Hospital, N33-E14, Higashi-ku, Sapporo, Hokkaido 065-0033, Japan
| | - H Ogasawara
- Sapporo Minami-Seishu Hospital, 1-2-20, Satozuka, Kiyota-Ku, Sapporo, Hokkaido 004-0801, Japan
| | - Y Hotta
- Hokusei Hospital, W3-2-10, Sinkawa, Kita-Ku, Sapporo, Hokkaido 001-0933, Japan
| | - K Tsukagoshi
- Hijirigaoka Hospital, 214-22, Funaoka, Date, Hokkaido 052-0014, Japan
| | - O Kimura
- School of Pharmaceutical Science, Health Sciences University of Hokkaido, 1757 Kanazawa, Ishikari-Tobetsu, Hokkaido 061-0293, Japan
| | - T Kura
- Naganuma Municipal Hospital, 2-2-1 Chuo, Naganuma, Yubari, Hokkaido 069-1332, Japan
| | - T Tarumi
- Hokusei Hospital, W3-2-10, Sinkawa, Kita-Ku, Sapporo, Hokkaido 001-0933, Japan
| | - H Muramatsu
- Rumoi City Hospital, 2-16 Shinonome, Rumoi, Hokkaido 077-8511, Japan
| | - T Endo
- School of Pharmaceutical Science, Health Sciences University of Hokkaido, 1757 Kanazawa, Ishikari-Tobetsu, Hokkaido 061-0293, Japan.
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Toda T, Kanagawa M, Kobayashi K, Tajiri M, Manya H, Kuga A, Yamaguchi Y, Wada Y, Endo T. Identification of a post-translational modification with ribitol-phosphate and its defect in muscular dystrophy. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.021] [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: 11/17/2022]
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Namba S, Endo T, Fujino S, Suzuki C, Tamura N. Development of a cascade arc discharge source for an atmosphere-vacuum interface device. Rev Sci Instrum 2016; 87:083503. [PMID: 27587119 DOI: 10.1063/1.4960425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
To realize a novel vacuum-atmosphere interface that does not require a large differential pumping system, a robust cascade arc discharge source called a plasma window is constructed and tested for long-term operation. By modifying a test plasma with a direct current discharge, a vacuum interface with a high gas pressure ratio of 1/407 between the discharge and expansion sections is demonstrated for currents as high as 20 A. No significant damage to the electrodes is observed during the operation. Analysis of the visible emission spectra reveals that a stationary, stable argon plasma having a temperature of 1 eV and a density of 1.5 × 10(16) cm(-3) is generated in the plasma channel.
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Affiliation(s)
- S Namba
- Graduate School of Engineering, Hiroshima University, 1-4-1 Higashihiroshima, Hiroshima 739-8527, Japan
| | - T Endo
- Graduate School of Engineering, Hiroshima University, 1-4-1 Higashihiroshima, Hiroshima 739-8527, Japan
| | - S Fujino
- Graduate School of Engineering, Hiroshima University, 1-4-1 Higashihiroshima, Hiroshima 739-8527, Japan
| | - C Suzuki
- National Institute for Fusion Science, 322-6 Oroshi-cyo, Toki, Gifu 509-5292, Japan
| | - N Tamura
- National Institute for Fusion Science, 322-6 Oroshi-cyo, Toki, Gifu 509-5292, Japan
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Fukuhara A, Tsujita T, Sase K, Konno A, Nakagawa A, Endo T, Tominaga T, Jiang X, Abiko S, Uchiyama M. Securing an optimum operating field without undesired tissue damage in neurosurgery. Adv Robot 2016. [DOI: 10.1080/01691864.2016.1200483] [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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Suzuki M, Matsui O, Ueda F, Ougi T, Inoue D, Endo T, Kawashima H, Takemura A, Ichikawa K. MR Imaging of Hippocampal Sulcus Remnant: Age-Related Differences. Neuroradiol J 2016; 20:611-6. [DOI: 10.1177/197140090702000601] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2007] [Accepted: 09/16/2007] [Indexed: 11/15/2022] Open
Abstract
The hippocampal sulcus remnant (HSR) is often observed at the medial temporal lobe on MR images. In the present study, we made a retrospective assessment of the frequency and age-related differences in HSR in routine brain MR examinations of 1000 patients, 494 females and 506 males. Cases with one or several spots that were hypointense on T1-weighted and FLAIR images and hyperintense on T2-weighted images were defined as positive for HSR. Abnormal spots with the same intensity as cerebrospinal fluid were observed in 210 out of 506 males and in 193 out of 494 females. No significant sex-related differences were observed in the frequency of HSR. The HSR was seen more frequently with age in both males and females. Patients with hypertension had a significantly higher frequency of HSR.
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Affiliation(s)
- M. Suzuki
- Department of Quantum Medical Technology, Kanazawa University; Kanazawa, Ishikawa, Japan
| | - O. Matsui
- Department of Radiology, Graduate School of Medical Sciences, Kanazawa University; Kanazawa, Ishikawa, Japan
| | - F. Ueda
- Department of Radiology, Graduate School of Medical Sciences, Kanazawa University; Kanazawa, Ishikawa, Japan
| | - T. Ougi
- Department of Radiology, Graduate School of Medical Sciences, Kanazawa University; Kanazawa, Ishikawa, Japan
| | - D. Inoue
- Department of Radiology, Graduate School of Medical Sciences, Kanazawa University; Kanazawa, Ishikawa, Japan
| | - T. Endo
- Department of Radiology, Graduate School of Medical Sciences, Kanazawa University; Kanazawa, Ishikawa, Japan
| | - H. Kawashima
- Department of Radiology, Graduate School of Medical Sciences, Kanazawa University; Kanazawa, Ishikawa, Japan
| | - A. Takemura
- Department of Quantum Medical Technology, Kanazawa University; Kanazawa, Ishikawa, Japan
| | - K. Ichikawa
- Department of Quantum Medical Technology, Kanazawa University; Kanazawa, Ishikawa, Japan
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Masuda H, Endo T, Yoshimasa Y, Uchida H, Nakabayashi A, Maruyama T, Tanaka M. A case of hysteroscopic resection of cervical pregnancy after successful treatment with systematic methotrexate. J OBSTET GYNAECOL 2016; 36:865-866. [PMID: 27189085 DOI: 10.1080/01443615.2016.1174837] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Hirotaka Masuda
- a Department of Obstetrics and Gynecology , Keio University School of Medicine , Tokyo , Japan
| | - Toyohide Endo
- a Department of Obstetrics and Gynecology , Keio University School of Medicine , Tokyo , Japan
| | - Yushi Yoshimasa
- a Department of Obstetrics and Gynecology , Keio University School of Medicine , Tokyo , Japan
| | - Hiroshi Uchida
- a Department of Obstetrics and Gynecology , Keio University School of Medicine , Tokyo , Japan
| | - Akira Nakabayashi
- a Department of Obstetrics and Gynecology , Keio University School of Medicine , Tokyo , Japan
| | - Tetsuo Maruyama
- a Department of Obstetrics and Gynecology , Keio University School of Medicine , Tokyo , Japan
| | - Mamoru Tanaka
- a Department of Obstetrics and Gynecology , Keio University School of Medicine , Tokyo , Japan
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Adachi N, Adamovitch V, Adjovi Y, Aida K, Akamatsu H, Akiyama S, Akli A, Ando A, Andrault T, Antonietti H, Anzai S, Arkoun G, Avenoso C, Ayrault D, Banasiewicz M, Banaśkiewicz M, Bernardini L, Bernard E, Berthet E, Blanchard M, Boreyko D, Boros K, Charron S, Cornette P, Czerkas K, Dameron M, Date I, De Pontbriand M, Demangeau F, Dobaczewski Ł, Dobrzyński L, Ducouret A, Dziedzic M, Ecalle A, Edon V, Endo K, Endo T, Endo Y, Etryk D, Fabiszewska M, Fang S, Fauchier D, Felici F, Fujiwara Y, Gardais C, Gaul W, Gurin L, Hakoda R, Hamamatsu I, Handa K, Haneda H, Hara T, Hashimoto M, Hashimoto T, Hashimoto K, Hata D, Hattori M, Hayano R, Hayashi R, Higasi H, Hiruta M, Honda A, Horikawa Y, Horiuchi H, Hozumi Y, Ide M, Ihara S, Ikoma T, Inohara Y, Itazu M, Ito A, Janvrin J, Jout I, Kanda H, Kanemori G, Kanno M, Kanomata N, Kato T, Kato S, Katsu J, Kawasaki Y, Kikuchi K, Kilian P, Kimura N, Kiya M, Klepuszewski M, Kluchnikov E, Kodama Y, Kokubun R, Konishi F, Konno A, Kontsevoy V, Koori A, Koutaka A, Kowol A, Koyama Y, Kozioł M, Kozue M, Kravtchenko O, Kruczała W, Kudła M, Kudo H, Kumagai R, Kurogome K, Kurosu A, Kuse M, Lacombe A, Lefaillet E, Magara M, Malinowska J, Malinowski M, Maroselli V, Masui Y, Matsukawa K, Matsuya K, Matusik B, Maulny M, Mazur P, Miyake C, Miyamoto Y, Miyata K, Miyata K, Miyazaki M, Molȩda M, Morioka T, Morita E, Muto K, Nadamoto H, Nadzikiewicz M, Nagashima K, Nakade M, Nakayama C, Nakazawa H, Nihei Y, Nikul R, Niwa S, Niwa O, Nogi M, Nomura K, Ogata D, Ohguchi H, Ohno J, Okabe M, Okada M, Okada Y, Omi N, Onodera H, Onodera K, Ooki S, Oonishi K, Oonuma H, Ooshima H, Oouchi H, Orsucci M, Paoli M, Penaud M, Perdrisot C, Petit M, Piskowski A, Płocharski A, Polis A, Polti L, Potsepnia T, Przybylski D, Pytel M, Quillet W, Remy A, Robert C, Sadowski M, Saito M, Sakuma D, Sano K, Sasaki Y, Sato N, Schneider T, Schneider C, Schwartzman K, Selivanov E, Sezaki M, Shiroishi K, Shustava I, Śniecińska A, Stalchenko E, Staroń A, Stromboni M, Studzińska W, Sugisaki H, Sukegawa T, Sumida M, Suzuki Y, Suzuki K, Suzuki R, Suzuki H, Suzuki K, Świderski W, Szudejko M, Szymaszek M, Tada J, Taguchi H, Takahashi K, Tanaka D, Tanaka G, Tanaka S, Tanino K, Tazbir K, Tcesnokova N, Tgawa N, Toda N, Tsuchiya H, Tsukamoto H, Tsushima T, Tsutsumi K, Umemura H, Uno M, Usui A, Utsumi H, Vaucelle M, Wada Y, Watanabe K, Watanabe S, Watase K, Witkowski M, Yamaki T, Yamamoto J, Yamamoto T, Yamashita M, Yanai M, Yasuda K, Yoshida Y, Yoshida A, Yoshimura K, Żmijewska M, Zuclarelli E. Measurement and comparison of individual external doses of high-school students living in Japan, France, Poland and Belarus-the 'D-shuttle' project. J Radiol Prot 2016; 36:49-66. [PMID: 26613195 DOI: 10.1088/0952-4746/36/1/49] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Twelve high schools in Japan (of which six are in Fukushima Prefecture), four in France, eight in Poland and two in Belarus cooperated in the measurement and comparison of individual external doses in 2014. In total 216 high-school students and teachers participated in the study. Each participant wore an electronic personal dosimeter 'D-shuttle' for two weeks, and kept a journal of his/her whereabouts and activities. The distributions of annual external doses estimated for each region overlap with each other, demonstrating that the personal external individual doses in locations where residence is currently allowed in Fukushima Prefecture and in Belarus are well within the range of estimated annual doses due to the terrestrial background radiation level of other regions/countries.
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Affiliation(s)
- N Adachi
- Adachi High School, 2-347 Kakunai, Nihonmatsu, Fukushima 964-0904, Japan
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Kinoshita M, Murase N, Sawamoto N, Endo T, Kawamura M, Kanda M, Fukuyama H, Shibasaki H, Takahashi R, Ikeda A. ID 370 – Impaired central processing in pain perception in a patient with insensitivity to pain; evaluation by laser-evoked potential and pain PET. Clin Neurophysiol 2016. [DOI: 10.1016/j.clinph.2015.11.176] [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: 10/22/2022]
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Matsubara T, Ito A, Tsunomori A, Hara T, Muramatsu C, Endo T, Fujita H. An automated method for detecting architectural distortions on mammograms using direction analysis of linear structures. Annu Int Conf IEEE Eng Med Biol Soc 2016; 2015:2661-4. [PMID: 26736839 DOI: 10.1109/embc.2015.7318939] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Architectural distortion is one of the most important findings when evaluating mammograms for breast cancer. Abnormal breast architecture is characterized by the presence of spicules, which are distorted mammary structures that are not accompanied by an increased density or mass. We have been developing an automated method for detecting spiculated architectural distortions by analyzing linear structures extracted by normal curvature. However, some structures that are possibly related to distorted areas are not extracted using this method. The purpose of this study was to develop a new automated method for direction analysis of linear structures to improve detection performance in mammography. The direction of linear structures in each region of interest (ROI) was first determined using a direction filter and a background filter that can define one of eight directions (0°, 22.5°, 45°, 67.5°, 90°, 112.5°, 135°, and 157.5°). The concentration and isotropic indexes were calculated using the determined direction of the linear structures in order to extract the candidate areas. Discriminant analysis was performed to eliminate false positives results. Our database consisted of 168 abnormal images containing 174 distorted areas and 580 normal images. The sensitivity of the new method was 81%. There were 2.6 and 4.2 false positives per image using the new and previous methods, respectively. These findings show that our new method is effective for detecting spiculated architectural distortions.
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Takahata M, Hashino S, Nishio M, Sugita J, Shigematsu A, Onozawa M, Fujimoto K, Endo T, Kondo T, Tanaka J, Imamura M, Teshima T. Occurrence of adverse events caused by valganciclovir as pre-emptive therapy for cytomegalovirus infection after allogeneic stem cell transplantation is reduced by low-dose administration. Transpl Infect Dis 2015; 17:810-5. [PMID: 26354293 DOI: 10.1111/tid.12456] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 08/09/2015] [Accepted: 08/18/2015] [Indexed: 11/27/2022]
Abstract
BACKGROUND Pre-emptive therapy with valganciclovir (VGCV) has become the standard therapy for preventing cytomegalovirus (CMV) infection after allogeneic hematopoietic stem cell transplantation (HSCT). The effectiveness of low-dose VGCV (900 mg per day) has been shown to be equal to that of standard-dose VGCV (900 mg twice daily); however, individualized optimal dosing and toxicity of VGCV have not been reported. METHODS We conducted a retrospective study to evaluate the optimal dose of VGCV as pre-emptive therapy for preventing CMV infection by comparing the frequency of adverse events (AEs) and clinical efficacy in a low-dose VGCV group with those in a standard-dose VGCV group. Thirty-eight patients who were administered VGCV because of CMV antigenemia after HSCT were analyzed. RESULTS Neutropenia (standard-dose group: 33%, low-dose group: 15%, P = 0.26) and thrombocytopenia (standard-dose group: 39%, low-dose group: 15%, P = 0.14) were frequent AEs of VGCV, and a significantly higher frequency of overall AEs was detected in the standard-dose group than in the low-dose group (P < 0.01). In comparison of dosage based on weight, dosage of VGCV >27 mg/kg was closely related to onset of AEs (P = 0.04). CONCLUSIONS Low-dose VGCV was not inferior in clinical efficacy, including clearance rate of CMV antigenemia and incidence of consequent CMV disease, to standard-dose VGCV as was previously reported. Initial low-dose VGCV for pre-emptive CMV therapy markedly reduces hematologic toxicity and has clinical efficacy equivalent to that of standard-dose VGCV. It is therefore reasonable for patients, except for noticeably overweight patients, to be given initial low-dose VGCV.
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Affiliation(s)
- M Takahata
- Department of Hematology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - S Hashino
- Health Care Center, Hokkaido University, Sapporo, Japan
| | - M Nishio
- Department of Hematology, NTT Higashinihon Sapporo Hospital, Sapporo, Japan
| | - J Sugita
- Department of Hematology, Hokkaido University Hospital, Sapporo, Japan
| | - A Shigematsu
- Department of Hematology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - M Onozawa
- Department of Hematology, Hokkaido University Hospital, Sapporo, Japan
| | - K Fujimoto
- Department of Hematology, Hokkaido University Hospital, Sapporo, Japan
| | - T Endo
- Department of Hematology, Hokkaido University Hospital, Sapporo, Japan
| | - T Kondo
- Department of Hematology, Hokkaido University Hospital, Sapporo, Japan
| | - J Tanaka
- Department of Hematology, Tokyo Women's Medical University Hospital, Tokyo, Japan
| | - M Imamura
- Department of Hematology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - T Teshima
- Department of Hematology, Hokkaido University Hospital, Sapporo, Japan
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Nagakura H, Wakasugi T, Ohkubo K, Tanioka T, Endo T, Isobe S, Wang Y, Hashimoto N, Ohnuki S. B12-O-21Development of High Pressure Gas Environmental Cell and its Application to Hydrogen Reaction. Microscopy (Oxf) 2015. [DOI: 10.1093/jmicro/dfv108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kurishiba R, Endo T, Miyazaki N, Wang Y, Oka H, Sato Y, Sawa A, Hashimoto N, Ohnuki S. B23-P-16Multi-layer Method combined with Nano-indentation, FIB and XTEM for Nano-hardness Measurement. Microscopy (Oxf) 2015. [DOI: 10.1093/jmicro/dfv290] [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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Harada H, Toyoda Y, Endo T, Kobayashi M. Cysteine amide adduct formation from carboxylic acid drugs via UGT-mediated bioactivation in human liver microsomes. Pharmazie 2015; 70:678-683. [PMID: 26601426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Although chemical trapping has been widely used to evaluate cytochrome P450-mediated drug bioactivation, thus far, only a few in vitro-trapping studies have been performed on UDP-glucuronosyltransferase (UGT)-mediated drug bioactivation. In this study, we used cysteine (Cys) as trapping agent to gain new insights into the UGT-mediated bioactivation involving acyl glucuronides of carboxylic acid drugs. Diclofenac, ketoprofen and ibuprofen were incubated in human liver microsomes with UDPGA and Cys, followed by analysis using ultra-performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-QTOF/MS). The N-acyl-Cys amide adduct of diclofenac was characterized by mass analysis and was detectable even in photodiode array analysis. Our data indicated that the formation of such adducts reflects the reactivity of the corresponding acyl glucuronides. In addition, it was suggested that the adduct formation requires an N-terminal Cys moiety with both a free amine and a free thiol group, from the results using various cysteine derivatives. We propose that the S-acyl-Cys thioester adduct can form via transacylation of an acyl glucuronide and can then form to an N-acyl-Cys amide adduct through intramolecular S- to N-acyl rearrangement. This series of the reactions has important implications as a possible bioactivation mechanism for covalent binding of carboxylic acid drugs to macromolecules.
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Sugimori H, Endo T, Odajima T, Tadano T, Takayasu R, Tanba T, Kasai M, Kawame T, Yamamoto M, Orii T. Electronic Monitoring-Based Pharmacist-Delivered Counseling Enhance Adherence among Japanese COPD Patients. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv096.499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Shiota T, Imai K, Qiu J, Hewitt VL, Tan K, Shen HH, Sakiyama N, Fukasawa Y, Hayat S, Kamiya M, Elofsson A, Tomii K, Horton P, Wiedemann N, Pfanner N, Lithgow T, Endo T. Molecular architecture of the active mitochondrial protein gate. Science 2015; 349:1544-8. [DOI: 10.1126/science.aac6428] [Citation(s) in RCA: 144] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Furuishi T, Ishigami T, Endo T, Nagase H, Okada M, Nishiyama I, Jo A, Terao K, Ueda H. Effect of γ-cyclodextrin as a lyoprotectant for freeze-dried actinidin. Pharmazie 2015; 70:296-299. [PMID: 26062296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Actinidin (ATD) is a cysteine protease found in kiwifruit. It is used to tenderize meat and to enhance the digestion of proteins in the small intestine. However, ATD is unstable during freeze-drying, which alters its bioactivity. It is well known that sugars have the ability to protect proteins from the stress of freeze-drying. In this study, we investigated the protective effect of various saccharides on the stability of ATD during freeze-drying. The ATD activities of the samples containing γ-cyclodextrin (CyD) showed only a small decrease, and compared with trehalose and sucrose, γ-CyD was a more effective stabilizer for ATD. Secondary structural changes in freeze-dried ATD were observed by circular dichroism spectroscopy and compared with the changes in stabilized samples. There was a close relationship between the α-helix content and the stabilization. The sugars stabilized the protein by suppressing the changes in the α-helix. Fourier transform infrared spectroscopy measurement showed that the amide I band of ATD with γ-CyD was shifted to a lower wavenumber compared with other sugars. Therefore, stronger hydrogen bonds may be formed between ATD and γ-CyD than between ATD and other sugars. The suppression of changes in the protein secondary structure accompanying the formation of hydrogen bonding between the protein and the sugar also contributed to the protective effect of the sugars.
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Abe Y, Ota E, Harada H, Kanbe H, Kojima Y, Kanazawa T, Endo T, Murakami M, Kobayashi M. Species differences in the metabolism of ritobegron in vitro and assessment of potential interactions with transporters and cytochrome P450 enzymes. Pharmazie 2015; 70:38-46. [PMID: 25975097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Ritobegron, a selective β3-adrenoceptor agonist, is the prodrug of the active compound, KUC-7322. We investigated species differences in its metabolism in vitro and the potential for drug-drug interactions with ritobegron. In rat, dog, monkey, and human liver microsomes, ritobegron was not metabolized by cytochrome P450 enzymes (CYPs). KUC-7322 was the only metabolite observed. Hydrolysis of ritobegron to KUC-7322 was likely catalyzed by carboxylesterases in human liver microsomes. The maximum velocity of the reaction (V(max))/Michaelis-Menten constant (K(m)) for hydrolysis of ritobegron to KUC-7322 was much higher in rat serum than those in other species. There were also species differences in the conjugation of KUC-7322. Sulfate conjugates of ritobegron were detected in all species, whereas glucuronide and glutathione conjugates of KUC-7322 were only observed in rat liver subcellular fractions. Ritobegron and KUC-7322 did not affect the CYP-mediated metabolism of probe substrates in human liver microsomes and organic anion transporter 1 (OAT1)-, OAT2-, OAT3-, organic cation transporter 2 (OCT-2)-, OCT3-, or organic cation/carnitine transporter 1 (OCTN1)-mediated uptake of probe substrates in S2 cells. Ritobegron, but not KUC-7322, inhibited P-glycoprotein-mediated digoxin transport in Caco-2 cells. Significant uptake of KUC-7322 was observed in OAT3-expressing S2 cells. Therefore, CYP-mediated drug-drug interactions are not likely when ritobegron is administered with CYP substrates or inhibitors. Ritobegron may increase the plasma concentrations of P-glycoprotein substrates, such as digoxin, and the plasma concentration of KUC-7322 may increase when it is administered in combination with OAT inhibitors such as probenecid.
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