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Immunological Effects of Silica and Asbestos

Cellular & Molecular Immunology 2007年第4期4卷 261-268页

作者： Takemi Otsuki Megumi Maeda shuko murakami Hiroaki Hayashi Yoshie Miura Masayasu Kusaka Takashi Nakano Kazuya Fukuoka Takumi Kishimoto Fuminori Hyodoh Ayako Ueki Yasumitsu Nishimura Department of Hygiene Kawasaki Medical SchoolMatsushima 577Kurashiki 7010192Japan Eppley Institute for Cancer Research University of Nebraska Medical CenterOmahaNebraska 68198USA Department of Internal Medicine Kusaka Hospital1122 NishikatagamiBizen 7050021Japan Department of Respiratory Medicine Hyogo Medical College of Medicine1-1 Mukogawa-choNishinomiyaHyogo 6638131Japan Okayama Rosai Hospital 1-10-25 Chikkou-midori-machiOkayama 7028055Japan Department of Rehabilitation Faculty of Health Sciences and TechnologyKawasaki University of Medical Welfare288 MatsushimaKurashiki 7010193Japan Department of Nursing Kawasaki College of Allied Health Professions316 MatsushimaKurashiki 7010194Japan

Silicosis patients （SILs） and patients who have been exposed to asbestos develop not only respiratory diseases but also certain immunological disorders. In particular, SIL sometimes complicates autoimmune diseases such as systemic scleroderma, rheumatoid arthritis （known as Caplan syndrome）, and systemic lupus erythematoses. In addition, malignant complications such as lung cancer and malignant mesothelioma often occurr in patients exposed to asbestos, and may be involved in the reduction of tumor immunity. Although silica-induced disorders of autoimmunity have been explained as adjuvant-type effects of silica, more precise analyses are needed and should reflect the recent progress in immunomolecular findings. A brief summary of our investigations related to the immunological effects of silica/asbestos is presented. Recent advances in immunomolecular studies led to detailed analyses of the immunological effects of asbestos and silica. Both affect immuno-competent cells and these effects may be associated with the pathophysiological development of complications in silicosis and asbestos-exposed patients such as the occurrence of autoimmune disorders and malignant tumors, respectively. In addition, immunological analyses may lead to the development of new clinical tools for the modification of the pathophysiological aspects of diseases such as the regulation of autoimmunity or tumor immunity using cellmediated therapies, various cytokines, and molecule-targeting therapies. In particular, as the incidence of asbestosrelated malignancies is increasing and such malignancies have been a medical and social problem since the summer of 2005 in Japan, efforts should be focused on developing a cure for these diseases to eliminate nationwide anxiety.

关键词： silica asbestos immunology Fas regulatory T cell apoptosis

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Characteristics of escape mutations from occult hepatitis B virus infected patients with hematological malignancies in South Egypt

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World Journal of Hepatology 2017年第9期9卷 477-486页

作者： Abeer Elkady Sayuki Iijima Sahar Aboulfotuh Elsayed Mostafa Ali Douaa Sayed Nashwa M Abdel-Aziz Amany M Ali shuko murakami Masanori Isogawa Yasuhito Tanaka Department of Clinical and Chemical Pathology Medical School of South Valley University Department of Virology and Liver Unit Nagoya City University Graduate School of Medical Sciences Department of Clinical and Chemica Pathology Medical School of Sohag University Department of Medical Oncology Medical School of Sohag University Department of Clinical and Chemical Pathology South Egypt Cancer Institute Department of Medical Oncology South Egypt Cancer Institue

AIM To investigate the prevalence and virological characteristics of occult hepatitis B virus(HBV) infections in patients with hematological malignancies in South *** Serum samples were collected from 165 patients with hematological malignancies to monitor titers of HBV DNA, hepatitis B surface antigen(HBs Ag), and antibodies to HBV core(anti-HBc) and surface antigens. Serum samples negative for HBs Ag and positive for anti-HBc were subjected to nucleic acid extraction and HBV DNA detection by real-time polymerase chain reaction. DNA sequences spanning the S region were analyzed in cases with occult HBV infection. In vitro comparative study of constructed 1.24-fold wild type and S protein mutant HBV genotype D clones was further performed. RESULTS HBV DNA was detected in 23(42.6%) of 54 patients with hematological malignancies who were HBsA g negative, but anti-HBc positive, suggesting the presence of occult HBV infection. The complete HBV genome was retrieved from 6 occult HBV patients, and P120 T and S143 L were detected in 3 and 2 cases, respectively. Site directed mutagenesis was done to produce 1.24-fold genotype D clones with amino acid mutations T120 and L143. The in vitro analyses revealed that a lower level of extracellular HBsA g was detected by chemiluminescence enzyme immunoassay(CLEIA) with the clone containing T120 mutation, compared with the wild type or the clone with S143 L mutation despite the similar levels of extracellular and intracellular HBs Ag detected by Western blot. Southern blot experiments showed that the levels of intracellular HBV DNA were not different between these clones. CONCLUSION Occult HBV infection is common in patients with hematological malignancies and associated with P120 T and S143 L mutations. 120 T mutation impairs the detection of HBsA g by CLEIA.

关键词： Occult hepatitis B infection Hematological malignancies Escape mutation

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Daily Intake of a Commercially Available Vegetable Juice Has Beneficial Effects on Metabolic Syndrome-Related Biomarkers in Young, Healthy Japanese Adults

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Food and Nutrition Sciences 2016年第10期7卷 844-854页

作者： Kazutaka Yoshida Mari Mori Tatsuya Miyashita shuko murakami Takahiro Inakuma Satoshi Sunabori Hiroyuki Suganuma Yukio Yamori Innovation Division KAGOME Co. Ltd. Tochigi Japan Institution for World Health Development Mukogawa Women’s University Hyogo Japan Hyogo Prefecture Health Promotion Association Hyogo Japan Faculty of Contemporary Human Life Science Department of Food and Nutrition Tezukayama University Nara Japan

Adequate vegetable intake is important in reducing the risk of lifestyle-related diseases;however, intake amongst young Japanese adults is poor. This study aimed to assess the effect of daily intake of a commercially available vegetable juice on nutritional status and metabolic syndrome-related markers in healthy young adults. Fifty-one healthy adults (14 men, 37 women), age 20 - 22 years were recruited, and their food and nutritional intake was surveyed using an FFQ based on Food Groups. Subjects were divided into either a control group, who were not administered vegetable juice, or an intervention group, who consumed 200 mL vegetable juice daily for 2 months. Anthropometric data, serum carotenoid concentrations, blood and urinary parameters were measured at baseline and at 2 months. The average intake of vegetables in all subjects at baseline was approximately 140 g/day, less than half the dose recommended by the Japanese government. Total serum carotenoid concentration in the intervention group doubled from baseline after 2 months. In particular, serum concentrations of α-carotene, β-carotene, and lycopene were increased. In the intervention group, 24-hour urinary potassium excretion increased significantly, and 24-hour urinary sodium to potassium ratio decreased significantly. Waist circumference and systolic blood pressure also decreased significantly. Daily intake of a commercial vegetable juice for 2 months improved nutritional status in young adults with inadequate vegetable intake, shown by improved serum carotenoid and urine potassium levels. In addition, intake of vegetable juice may be beneficial in reducing the risk of metabolic syndrome.

关键词： Vegetable Juice Carotenoid Potassium Metabolic Syndrome Urinary Sodium to Potassium Ratio

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Incidence and characteristics of HBV reactivation in hematological malignant patients in south Egypt

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World Journal of Gastroenterology 2013年第37期19卷 6214-6220页

作者： Abeer Elkady Sahar Aboulfotuh Elsayed Mostafa Ali Douaa Sayed Nashwa M Abdel-Aziz Amany M Ali shuko murakami Sayuki Iijima Yasuhito Tanaka Department of Virology and Liver Unit Nagoya City University Graduate School of Medical Sciences Department of Clinical and Chemical Pathology Medical School of South Valley University Department of Clinical and Chemical Pathol-ogy Medical School of Sohag University Department of Medical Oncology Medical School of Sohag University Department of Clinical and Chemical Pathology South Egypt Cancer Institute Department of Medical Oncology South Egypt Cancer Institue

AIM:To investigate characteristics of hepatitis B virus(HBV)implicated in HBV reactivation in patients with hematological malignancies receiving immunosuppressive ***:Serum samples were collected from 53 patients with hematological malignancies negative for hepatitis B surface antigen(HBsAg)before the start of and throughout the chemotherapy *** reactivation was diagnosed when the HBsAg status changed from negative to positive after the initiation of chemotherapy and/or when HBV DNA was detected by realtime detection polymerase chain reaction(RTD-PCR).For detecting the serological markers of HBV infection,HBsAg as well as antibodies to the core antigen(antiHBc)and to the surface antigen were measured in the sera by *** acids were extracted from sera,and HBV DNA sequences spanning the S gene were amplified by *** extracted DNA was further subjected to PCR to amplify the complete genome as well as the specific genomic sequences bearing the enhancerⅡ/core promoter/pre-core/core regions(nt1628-2364).Amplicons were sequenced ***:Thirty-five(66%)of the 53 HBsAg-negative patients were found to be negative serologically for antiHBc,and the remaining 18(34%)patients were positive for *** of the 53(9.4%)patients with hematologic malignancies experienced HBV *** D1 was detected in all five *** types of mutant strains were detected in the S gene product of HBV strains and were isolated from 3 patients with HBV reactivation:T/S120,L143,and *** DNA was detected in the pretreatment HBsAg-negative samples in one of the five patients with HBV *** this patient,sequences encompassing the HBV full genome obtained from sera before the start of chemotherapy and at the time of de novo HBV hepatitis were detected and it showed 100%***,in the phylogenetic tree,the sequences were clustered together,thereby indicating that this patient developed reactivation from an occult

关键词： Hepatitis B virus Occult infection Reactivation Hepatitis B surface antigen

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Pulmonary artery diameter ratio as a prognostic indicator of congenital diaphragmatic hernia

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World Journal of Pediatric Surgery 2024年第1期7卷 20-25页

作者： Yuichiro Miyake Hiroyuki Koga shuko Nojiri Shunsuke Yamada Takanori Ochi Go Miyano Geoffrey J Lane Atsuyuki Yamataka Tadaharu Okazaki Department of Pediatric General and Urogenital Surgery Juntendo University School of MedicineBunkyo-kuTokyoJapan Department of Medical Technology Innovation Center Juntendo UniversityBunkyo-ku TokyoJapan Department of Pediatric Surgery Juntendo University Urayasu HospitalUrayasuChibaJapan

Background Following on from an earlier study published in 2008 about left pulmonary artery(LPA)flow measured on serial echocardiography being strongly prognostic in left-sided congenital diaphragmatic hernia(CDH)and the ratio of LPA to right pulmonary artery(RPA)diameters being a simple and reliable indicator for commencing nitric oxide(NO)therapy,the ratio of LPA:RPA diameters(PA ratio orPAR)was hypothesized to possibly reflect cardiopulmonary stresses accompanying CDH *** Subjects with isolated left-sided CDH treated between 2007 and 2020 at a single pediatric surgical center were recruited and classified according to *** obtained retrospectively for subject demographics,clinical course,LPA/RPA diameters,and PAR were compared between survivors and *** value of PAR for optimizing the prognostic value of PA diameter data in CDH were analyzed with receiver operating characteristic(ROC)curve *** Of 65 subjects,there were 54 survivors(82.3%)and 11 non-survivors(17.7%);7 of 11 non-survivors died before surgical repair could be *** PAR for survivors(0.851±0.152)was significantly higher than for non-survivors(0.672±0.108)(p=0.0003).Mean PAR for non-survivors was not affected by surgical *** of survivors were:LPA≥2 mm(n=52 of 54;mean PAR=0.866±0.146)and RPA≥3mm(n=46 of 54;mean PAR=0.857±0.152).Non-survivors with similar LPA and RPA diameters to survivors had significantly lower mean *** curve cut-off for PAR was *** with high PAR(≥0.762)required high-frequency oscillatory ventilation/NO less than subjects with low PAR(<0.762)(p=0.0244 and p=0.0485,respectively)and subjects with high PAR stabilized significantly earlier than subjects with low PAR(1.71±0.68 days vs 3.20±0.87 days)(p<0.0001).Conclusions PAR would appear to be strongly correlated with clinical outcome in CDH and be useful for planning management of cardiopulmonary instability in CDH.

关键词： hernia congenital diameters

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How Effective Is Cervical Ripening Using the Controlled-Release Dinoprostone Vaginal Delivery System for Primiparas with Unruptured Membranes?

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Open Journal of Obstetrics and Gynecology 2024年第8期14卷 1185-1196页

作者： Yoshino Kinjyo Yukiko Chinen Tadatsugu Kinjo shuko Chinen Keiko Mekaru Department of Obstetrics and Gynecology Graduate School of Medicine University of the Ryukyus Okinawa Japan

Background: Labor induction has a low success rate, especially in primiparas with unruptured membranes. Previous studies focused on pregnant women with unruptured membranes, but none specifically targeted primiparas. Aims: To compare the effectiveness of a controlled-release dinoprostone vaginal delivery system for cervical dilatation (PROPESS) with that of mechanical dilation for labor induction in primiparous women with unruptured membranes. Materials and Methods: We retrospectively analyzed the data of 90 primiparas with unruptured membranes (41 and 49 in the PROPESS and mechanical dilation groups, respectively). The primary outcome was the cesarean section (CS) rate. The secondary outcomes were the prevalence of vaginal delivery within 12 or 24 h after the initial insertion, oxytocin usage rate, chorioamnionitis, additional use of mechanical dilation in the PROPESS group, and neonatal outcomes. Results: The CS rate was significantly lower in the PROPESS group than in the mechanical dilation group (p = 0.02). A total of 13 patients (31.7%) delivered within 24 h with PROPESS alone, indicating a significantly higher rate of delivery within 24 h in the PROPESS group (p = 0.02). Fewer patients required additional oxytocin in the PROPESS group than in the mechanical dilation group (p = 0.001). However, 14 (34%) patients in the PROPESS group required additional mechanical cervical dilation, resulting in a longer time to delivery than mechanical dilation. Conclusions: PROPESS significantly reduced CS rates and increased delivery rates 24 h after the initial insertion in primiparas with unruptured membranes compared to mechanical dilatation. However, failure to respond to PROPESS resulted in an overall longer delivery time than that of the conventional mechanical dilation group;therefore, identifying predictors of response to PROPESS is necessary.

关键词： PROPESS Labor Induction Primiparas Cervical Ripening Unruptured Membranes

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Perinatal Morbidity, Mortality, and Neurodevelopmental Outcomes of Neonates with Fetal Growth Restriction

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Open Journal of Obstetrics and Gynecology 2024年第3期14卷 321-333页

作者： Natsuki Tamashiro shuko Chinen Yoshino Kinjyo Yukiko Chinen Tadatsugu Kinjo Keiko Mekaru Department of Obstetrics and Gynecology Graduate School of Medicine University of the Ryukyus Nishihara Japan

Objective: This study aimed to assess perinatal morbidity, mortality rates, and neurodevelopmental outcomes in the management of fetal growth restriction (FGR) at a single tertiary institute. Methods: Among 2465 deliveries between 2013 and 2019, 109 cases of FGR were reviewed retrospectively for causes, indications for pregnancy termination, perinatal death, overall neonatal outcomes, and long-term prognosis. Results: Excluding FGR due to congenital anomalies (n = 17), the mortality rate was 3.3% (3/92). One neonate delivered at 23 weeks developed cerebral palsy (1.1%). Retinopathy of prematurity occurred in four neonates (4.3%). Neurodevelopmental disorders were present in six neonates (6.5%), all of whom were delivered at 32 - 38 weeks. Significantly lower gestational age at delivery, lower birth weight, and higher umbilical artery resistance indices were observed in neonates with neurodevelopmental disorders. Conclusions: Intact survival before 27 weeks of gestation at delivery with FGR is uncommon. Neurodevelopmental disorders may still develop after delivery at 32 - 38 weeks;consideration should be given to the timing of delivery usingfetal ductus venosus Doppler waveforms measurements to reduce neurodevelopmental disorders.

关键词： Fetal Death Fetal Growth Retardation Neurodevelopmental Disorders Perinatal Mortality Umbilical Artery Doppler Velocimetry

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Clinical implications of doubling time of gastrointestinal submucosal tumors

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World Journal of Gastroenterology 2016年第45期22卷 10015-10023页

作者： shuko Koizumi Mitsuhiro Kida Hiroshi Yamauchi Kosuke Okuwaki Tomohisa Iwai Shiro Miyazawa Miyoko Takezawa Hiroshi Imaizumi Wasaburo Koizumi Department of Gastroenterology Kitasato University School of Medicine

AIM To evaluate the efficacy of doubling time(DT) of gastrointestinal submucosal tumors(GIST).METHODS From April 1987 through November 2012, a total of 323 patients were given a final histopathological diagnosis of GISTs on surgical resection or endoscopic ultrasound-guided fine-needle aspiration(EUS-FNA) in Kitasato University East Hospital or Kitasato University Hospital. We studied 53 of these patients(34 with resected tumors and 19 with unresected tumors) whose tumors could be measured on EUS on at least two successive occasions. The histopathological diagnosis was GIST in 34 patients, leiomyoma in 5, schwannoma in 3, ectopic pancreas in 1, hamartoma in 1, cyst in 1, Brunner's adenoma in 1, and spindle-cell tumor in 7. We retrospectively calculated the DT of GISTs on the basis of the time course of EUS findings to estimate the growth rate of such *** The DT was 17.2 mo for GIST, as compared with 231.2 mo for leiomyoma, 104.7 mo for schwannoma, 274.9mo for ectopic pancreas, 61.2 mo for hamartoma, 49.0 mo for cyst, and 134.7 mo for Brunner's adenoma. The GISTs were divided into risk classes on the basis of tumor diameters and mitotic figures(Fletcher's classification). The classification was extremely low risk or low risk in 28 patients, intermediate risk in 3, and high risk in 3. DT of GIST according to risk was 24.0 mo for extremely low-risk plus low-risk GIST, 17.1 mo for intermediate-risk GIST, and 3.9 mo for high-risk GIST. DT of GIST was significantly shorter than that of leiomyoma plus schwannoma(P < 0.05), and DT of high-risk GIST was significantly shorter than that of extremely low-risk plus low-risk GIST(P < 0.05).CONCLUSION For GIST, a higher risk grade was associated with a significantly shorter DT. Small SMTs should initially be followed up within 6 mo after detection.

关键词： Gastrointestinal submucosal tumor Doubling time Submucosal tumor Initial observational duration Endoscopic ultrasonography Endoscopic ultrasonography-guided fine needle aspiration Fletcher’s classification

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Surgeries for the Heart and Abdominal Aorta in a Patient with Heparin-Induced Thrombocytopenia: Manifestations Following Initial Heart Surgery

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Open Journal of Thoracic Surgery 2012年第1期2卷 10-12页

作者： Shoh Tatebe Makoto Taoka Imun Tei shuko Nakamura Ei-ichi Tei Department of Cardiovascular Surgery Ayase Heart Hospital Tokyo Japan. Department of Thoracic and Cardiovascular Surgery Mito Saiseikai General Hospital Mito City Japan

A 72-year-old man with abdominal aortic aneurysm and angina pectoris underwent coronary artery bypass grafting (CABG) prior to abdominal aortic surgery. Perioperatively, he developed thrombocytopenia ((29,000 mm3), which was suggested as heparin-induced thrombocytopenia. Cardiac status was also aggravated at the same time, suggestive of bypass graft thrombosis. The results of platelet factor 4 (pf4) antibody test were negative, but platelet aggregation test was positive for heparin. Heparin was immediately discontinued, and replaced by argatroban;the patient’s cardiac status improved. One month later, he underwent abdominal aortic surgery using argatroban without issues related to anticoagulation and hemostasis. Autologous donated fresh blood prepared by the “switch-back” method was also used in this case, and its value was confirmed.

关键词： Heparin-Induced Thrombocytopenia

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Passive-bending,short-type single-balloon enteroscope for endoscopic retrograde cholangiopancreatography in Roux-en-Y anastomosis patients

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World Journal of Gastroenterology 2015年第5期21卷 1546-1553页

作者： Hiroshi Yamauchi Mitsuhiro Kida Kosuke Okuwaki Shiro Miyazawa Tomohisa Iwai shuko Tokunaga Miyoko Takezawa Hiroshi Imaizumi Wasaburo Koizumi Department of Gastroenterology Kitasato University East HospitalKana-gawa 252--0380Japan

AIM:To evaluate short-type-single-balloon enteroscope(SBE) with passive-bending,high-force transmission functions for endoscopic retrograde cholangiopancreatography(ERCP) in patients with Roux-en-Y ***:Short-type SBE with this technology(SIF-Y0004-V01; working length,1520 mm; channel diameter,3.2 mm) was used to perform 50 ERCP procedures in 37 patients with Roux-en-Y *** rate of reaching the blind end,time required to reach the blind end,diagnostic and therapeutic success rates,and procedure time and complications were studied retrospectively and compared with the results of 34 sessions of ERCP performed using a short-type SBE without this technology(SIF-Y0004; working length,1520 mm; channel diameter,3.2 mm) in 25 ***:The rate of reaching the blind end was 90% with SIF-Y0004-V01 and 91% with SIF-Y0004(P = 0.59).The median time required to reach the papilla was significantly shorter with SIF-Y0004-V01 than with SIF-Y0004(16 min vs 24 min,P = 0.04).The diagnostic success rate was 93% with SIFY0004-V01 and 84% with SIF-Y0004(P = 0.17).The therapeutic success rate was 95% with SIF-Y0004-V01 and 96% with SIF-Y0004(P = 0.68).The median procedure time was 40 min with SIF-Y0004-V01 and 36 min with SIF-Y0004(P = 0.50).The incidence of hyperamylasemia was 6.0% in the SIF-Y0004-V01 group and 14.7% in the SIF-Y0004 group(P = 0.723).The incidence of pancreatitis was 0% in the SIFY0004-V01 group and 5.9% in the SIF-Y0004 group(P > 0.999).The incidence of gastrointestinal perforation was 2.0%(1/50) in the SIF-Y0004-V01 group and 2.9%(1/34) in the SIF-Y0004 group(P > 0.999).CONCLUSION:SIF-Y0004-V01 is useful for ERCP inpatients with Roux-en-Y anastomosis and may reduce the time required to reach the blind end.

关键词： Passive bending Roux-en-Y anastomosis Endoscopic r

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