1
|
Sakata R, Chu PS, Kawaida M, Emoto K, Sakurai M, Nishida R, Asakura K, Morikawa R, Taniki N, Kataoka K, Kanai T, Nakamoto N. Concurrent de novo Thymoma-associated Paraneoplastic Type 1 Autoimmune Hepatitis and Pure Red Cell Aplasia after Thymectomy: A Case Report and Literature Review. Intern Med 2023; 62:243-249. [PMID: 35705275 PMCID: PMC9908397 DOI: 10.2169/internalmedicine.9743-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
The precise manipulation of immune tolerance is the holy grail of immunotherapies for both autoimmunity and cancer immunity. Thymomas are well known to be associated with autoimmune diseases. The exact mechanism by which autoreactivity is induced after thymectomy remains to be elucidated. We herein present the case of a 50-year-old lady with concurrent de novo type 1 autoimmune hepatitis (AIH) and pure red cell aplasia (PRCA), 1 month after undergoing a successful total thymectomy for combined squamous cell carcinoma and thymoma (Masaoka stage II). Corticosteroids yielded short-term effects for both AIH and PRCA. Literature on thymoma-associated AIH, an extremely rare immune-related comorbidity, was also reviewed.
Collapse
Affiliation(s)
- Rie Sakata
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Japan
- Postgraduate Medical Education Center, Keio University Hospital, Japan
| | - Po-Sung Chu
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Japan
| | - Miho Kawaida
- Division of Diagnostic Pathology, Keio University School of Medicine, Japan
| | - Katsura Emoto
- Division of Diagnostic Pathology, Keio University School of Medicine, Japan
| | - Masatoshi Sakurai
- Division of Hematology, Department of Internal Medicine, Keio University School of Medicine, Japan
| | - Risa Nishida
- Division of Thoracic Surgery, Department of Surgery, Keio University School of Medicine, Japan
| | - Keisuke Asakura
- Division of Thoracic Surgery, Department of Surgery, Keio University School of Medicine, Japan
| | - Rei Morikawa
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Japan
| | - Nobuhito Taniki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Japan
| | - Keisuke Kataoka
- Division of Hematology, Department of Internal Medicine, Keio University School of Medicine, Japan
| | - Takanori Kanai
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Japan
| | - Nobuhiro Nakamoto
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Japan
| |
Collapse
|
2
|
Brenner AV, Preston DL, Sakata R, Cologne J, Sugiyama H, Utada M, Cahoon EK, Grant E, Mabuchi K, Ozasa K. Comparison of All Solid Cancer Mortality and Incidence Dose-Response in the Life Span Study of Atomic Bomb Survivors, 1958-2009. Radiat Res 2022; 197:491-508. [PMID: 35213725 DOI: 10.1667/rade-21-00059.1] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 01/10/2022] [Indexed: 11/03/2022]
Abstract
Recent analysis of all solid cancer incidence (1958-2009) in the Life Span Study (LSS) revealed evidence of upward curvature in the radiation dose response among males but not females. Upward curvature in sex-averaged excess relative risk (ERR) for all solid cancer mortality (1950-2003) was also observed in the 0-2 Gy dose range. As reasons for non-linearity in the LSS are not completely understood, we conducted dose-response analyses for all solid cancer mortality and incidence applying similar methods [1958-2009 follow-up, DS02R1 doses, including subjects not-in-city (NIC) at the time of the bombing] and statistical models. Incident cancers were ascertained from Hiroshima and Nagasaki cancer registries, while cause of death was ascertained from death certificates throughout Japan. The study included 105,444 LSS subjects who were alive and not known to have cancer before January 1, 1958 (80,205 with dose estimates and 25,239 NIC subjects). Between 1958 and 2009, there were 3.1 million person-years (PY) and 22,538 solid cancers for incidence analysis and 3.8 million PY and 15,419 solid cancer deaths for mortality analysis. We fitted sex-specific ERR models adjusted for smoking to both types of data. Over the entire range of doses, solid cancer mortality dose-response exhibited a borderline significant upward curvature among males (P = 0.062) and significant upward curvature among females (P = 0.010); for solid cancer incidence, as before, we found a significant upward curvature among males (P = 0.001) but not among females (P = 0.624). The sex difference in magnitude of dose-response curvature was statistically significant for cancer incidence (P = 0.017) but not for cancer mortality (P = 0.781). The results of analyses in the 0-2 Gy range and restricted lower dose ranges generally supported inferences made about the sex-specific dose-response shape over the entire range of doses for each outcome. Patterns of sex-specific curvature by calendar period (1958-1987 vs. 1988-2009) and age at exposure (0-19 vs. 20-83) varied between mortality and incidence data, particularly among females, although for each outcome there was an indication of curvature among 0-19-year-old male survivors in both calendar periods and among 0-19-year-old female survivors in the recent period. Collectively, our findings indicate that the upward curvature in all solid cancer dose response in the LSS is neither specific to males nor to incidence data; its evidence appears to depend on the composition of sites comprising all solid cancer group and age at exposure or time. Further follow up and site-specific analyses of cancer mortality and incidence will be important to confirm the emerging trend in dose-response curvature among young survivors and unveil the contributing factors and sites.
Collapse
Affiliation(s)
- A V Brenner
- Department of Epidemiology, Radiation Effects Research Foundation, Hiroshima and Nagasaki, Japan
| | - D L Preston
- Hirosoft International Corporation, Eureka, California
| | - R Sakata
- Department of Epidemiology, Radiation Effects Research Foundation, Hiroshima and Nagasaki, Japan
| | - J Cologne
- Department of Statistics, Radiation Effects Research Foundation, Hiroshima and Nagasaki, Japan
| | - H Sugiyama
- Department of Epidemiology, Radiation Effects Research Foundation, Hiroshima and Nagasaki, Japan
| | - M Utada
- Hirosoft International Corporation, Eureka, California
| | - E K Cahoon
- Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | - E Grant
- Associated Chief of Research, Radiation Effects Research Foundation, Hiroshima and Nagasaki, Japan
| | - K Mabuchi
- Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | - K Ozasa
- Department of Epidemiology, Radiation Effects Research Foundation, Hiroshima and Nagasaki, Japan
| |
Collapse
|
3
|
Applegate KE, Rühm W, Wojcik A, Bourguignon M, Brenner A, Hamasaki K, Imai T, Imaizumi M, Imaoka T, Kakinuma S, Kamada T, Nishimura N, Okonogi N, Ozasa K, Rübe CE, Sadakane A, Sakata R, Shimada Y, Yoshida K, Bouffler S. Individual response of humans to ionising radiation: governing factors and importance for radiological protection. Radiat Environ Biophys 2020; 59:185-209. [PMID: 32146555 DOI: 10.1007/s00411-020-00837-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 02/26/2020] [Indexed: 05/23/2023]
Abstract
Tissue reactions and stochastic effects after exposure to ionising radiation are variable between individuals but the factors and mechanisms governing individual responses are not well understood. Individual responses can be measured at different levels of biological organization and using different endpoints following varying doses of radiation, including: cancers, non-cancer diseases and mortality in the whole organism; normal tissue reactions after exposures; and, cellular endpoints such as chromosomal damage and molecular alterations. There is no doubt that many factors influence the responses of people to radiation to different degrees. In addition to the obvious general factors of radiation quality, dose, dose rate and the tissue (sub)volume irradiated, recognized and potential determining factors include age, sex, life style (e.g., smoking, diet, possibly body mass index), environmental factors, genetics and epigenetics, stochastic distribution of cellular events, and systemic comorbidities such as diabetes or viral infections. Genetic factors are commonly thought to be a substantial contributor to individual response to radiation. Apart from a small number of rare monogenic diseases such as ataxia telangiectasia, the inheritance of an abnormally responsive phenotype among a population of healthy individuals does not follow a classical Mendelian inheritance pattern. Rather it is considered to be a multi-factorial, complex trait.
Collapse
Affiliation(s)
| | - W Rühm
- Helmholtz Center Munich, German Research Center for Environmental Health, Institute of Radiation Medicine, Neuherberg, Germany
| | - A Wojcik
- Centre for Radiation Protection Research, MBW Department, Stockholm University, Stockholm, Sweden
| | - M Bourguignon
- Department of Biophysics and Nuclear Medicine, University of Paris Saclay (UVSQ), Verseilles, France
| | - A Brenner
- Department of Epidemiology, Radiation Effects Research Foundation, Hiroshima, Japan
| | - K Hamasaki
- Department of Molecular Biosciences, Radiation Effects Research Foundation, Hiroshima, Japan
| | - T Imai
- National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Sciences and Technology, Chiba, Japan
| | - M Imaizumi
- Department of Nagasaki Clinical Studies, Radiation Effects Research Foundation, Nagasaki, Japan
| | - T Imaoka
- Department of Radiation Effects Research, National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology, Chiba, Japan
| | - S Kakinuma
- Department of Radiation Effects Research, National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology, Chiba, Japan
| | - T Kamada
- QST Hospital, National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology, Chiba, Japan
| | - N Nishimura
- Department of Radiation Effects Research, National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology, Chiba, Japan
| | - N Okonogi
- QST Hospital, National Institute of Radiological Sciences, National Institute for Quantum and Radiological Science and Technology, Chiba, Japan
| | - K Ozasa
- Department of Epidemiology, Radiation Effects Research Foundation, Hiroshima, Japan
| | - C E Rübe
- Department of Radiation Oncology, Saarland University Medical Center, Homburg/Saar, Germany
| | - A Sadakane
- Department of Epidemiology, Radiation Effects Research Foundation, Hiroshima, Japan
| | - R Sakata
- Department of Epidemiology, Radiation Effects Research Foundation, Hiroshima, Japan
| | - Y Shimada
- National Institute for Quantum and Radiological Science and Technology, Chiba, Japan
- Institute for Environmental Sciences, Aomori, Japan
| | - K Yoshida
- Immunology Laboratory, Department of Molecular Biosciences, Radiation Effects Research Foundation, Hiroshima, Japan
| | - S Bouffler
- Radiation Effects Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilto, Didcot, UK
| |
Collapse
|
4
|
Ueda Y, Inui A, Mifune Y, Sakata R, Muto T, Harada Y, Takase F, Kataoka T, Kokubu T, Kuroda R. The effects of high glucose condition on rat tenocytes in vitro and rat Achilles tendon in vivo. Bone Joint Res 2018; 7:362-372. [PMID: 29922457 PMCID: PMC5987694 DOI: 10.1302/2046-3758.75.bjr-2017-0126.r2] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Objectives The aim of this study was to investigate the effect of hyperglycaemia on oxidative stress markers and inflammatory and matrix gene expression within tendons of normal and diabetic rats and to give insights into the processes involved in tendinopathy. Methods Using tenocytes from normal Sprague-Dawley rats, cultured both in control and high glucose conditions, reactive oxygen species (ROS) production, cell proliferation, messenger RNA (mRNA) expression of NADPH oxidase (NOX) 1 and 4, interleukin-6 (IL-6), matrix metalloproteinase (MMP)-2, tissue inhibitors of matrix metalloproteinase (TIMP)-1 and -2 and type I and III collagens were determined after 48 and 72 hours in vitro. In an in vivo study, using diabetic rats and controls, NOX1 and 4 expressions in Achilles tendon were also determined. Results In tenocyte cultures grown under high glucose conditions, gene expressions of NOX1, MMP-2, TIMP-1 and -2 after 48 and 72 hours, NOX4 after 48 hours and IL-6, type III collagen and TIMP-2 after 72 hours were significantly higher than those in control cultures grown under control glucose conditions. Type I collagen expression was significantly lower after 72 hours. ROS accumulation was significantly higher after 48 hours, and cell proliferation after 48 and 72 hours was significantly lower in high glucose than in control glucose conditions. In the diabetic rat model, NOX1 expression within the Achilles tendon was also significantly increased. Conclusion This study suggests that high glucose conditions upregulate the expression of mRNA for NOX1 and IL-6 and the production of ROS. Moreover, high glucose conditions induce an abnormal tendon matrix expression pattern of type I collagen and a decrease in the proliferation of rat tenocytes. Cite this article: Y. Ueda, A. Inui, Y. Mifune, R. Sakata, T. Muto, Y. Harada, F. Takase, T. Kataoka, T. Kokubu, R. Kuroda. The effects of high glucose condition on rat tenocytes in vitro and rat Achilles tendon in vivo. Bone Joint Res 2018;7:362–372. DOI: 10.1302/2046-3758.75.BJR-2017-0126.R2
Collapse
Affiliation(s)
- Y Ueda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - A Inui
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Y Mifune
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - R Sakata
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - T Muto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Y Harada
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - F Takase
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - T Kataoka
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - T Kokubu
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - R Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| |
Collapse
|
5
|
Kawatou M, Masumoto H, Fukushima H, Morinaga G, Sakata R, Ashihara T, Yamashita J. 974Human iPS cell-derived cardiac tissue to reproduce “Torsade de Pointes” arrhythmia in vitro. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
6
|
Katada Y, Nakagawa S, Minakata K, Odaka M, Taue H, Sato Y, Yonezawa A, Kayano Y, Yano I, Nakatsu T, Sakamoto K, Uehara K, Sakaguchi H, Yamazaki K, Minatoya K, Sakata R, Matsubara K. Efficacy of protocol-based pharmacotherapy management on anticoagulation with warfarin for patients with cardiovascular surgery. J Clin Pharm Ther 2017; 42:591-597. [PMID: 28503837 DOI: 10.1111/jcpt.12560] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 04/20/2017] [Indexed: 01/21/2023]
Abstract
WHAT IS KNOWN AND OBJECTIVE Anticoagulation therapy with warfarin requires periodic monitoring of prothrombin time-international normalized ratio (PT-INR) and adequate dose adjustments based on the data to minimize the risk of bleeding and thromboembolic events. In our hospital, we have developed protocol-based pharmaceutical care, which we called protocol-based pharmacotherapy management (PBPM), for warfarin therapy. The protocol requires pharmacists to manage timing of blood sampling for measuring PT-INR and warfarin dosage determination based on an algorithm. This study evaluated the efficacy of PBPM in warfarin therapy by comparing to conventional pharmaceutical care. METHODS From October 2013 to June 2015, a total of 134 hospitalized patients who underwent cardiovascular surgeries received post-operative warfarin therapy. The early series of patients received warfarin therapy as the conventional care (control group, n=77), whereas the latter received warfarin therapy based on the PBPM (PBPM group, n=68). These patients formed the cohort of the present study and were retrospectively analysed. RESULTS The indications for warfarin included aortic valve replacement (n=56), mitral valve replacement (n=4), mitral valve plasty (n=22) and atrial fibrillation (n=29). There were no differences in patients' characteristics between both groups. The percentage time in therapeutic range in the first 10 days was significantly higher in the PBPM group (47.1%) than that in the control group (34.4%, P<.005). The average time to reach the steady state was significantly (P<.005) shorter in the PBPM group compared to the control group (7.3 vs 8.6 days). WHAT IS NEW AND CONCLUSION Warfarin therapy based on our novel PBPM was clinically safe and resulted in significantly better anticoagulation control compared to conventional care.
Collapse
Affiliation(s)
- Y Katada
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
| | - S Nakagawa
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
| | - K Minakata
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - M Odaka
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
| | - H Taue
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
| | - Y Sato
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
| | - A Yonezawa
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
| | - Y Kayano
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
| | - I Yano
- Department of Pharmacy, Kobe University Hospital, Kobe, Japan
| | - T Nakatsu
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Sakamoto
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Uehara
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - H Sakaguchi
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Yamazaki
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Minatoya
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - R Sakata
- Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Matsubara
- Department of Clinical Pharmacology and Therapeutics, Kyoto University Hospital, Kyoto, Japan
| |
Collapse
|
7
|
Cullings HM, Grant EJ, Egbert SD, Watanabe T, Oda T, Nakamura F, Yamashita T, Fuchi H, Funamoto S, Marumo K, Sakata R, Kodama Y, Ozasa K, Kodama K. DS02R1: Improvements to Atomic Bomb Survivors' Input Data and Implementation of Dosimetry System 2002 (DS02) and Resulting Changes in Estimated Doses. Health Phys 2017; 112:56-97. [PMID: 27906788 DOI: 10.1097/hp.0000000000000598] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Individual dose estimates calculated by Dosimetry System 2002 (DS02) for the Life Span Study (LSS) of atomic bomb survivors are based on input data that specify location and shielding at the time of the bombing (ATB). A multi-year effort to improve information on survivors' locations ATB has recently been completed, along with comprehensive improvements in their terrain shielding input data and several improvements to computational algorithms used in combination with DS02 at RERF. Improvements began with a thorough review and prioritization of original questionnaire data on location and shielding that were taken from survivors or their proxies in the period 1949-1963. Related source documents varied in level of detail, from relatively simple lists to carefully-constructed technical drawings of structural and other shielding and surrounding neighborhoods. Systematic errors were reduced in this work by restoring the original precision of map coordinates that had been truncated due to limitations in early data processing equipment and by correcting distortions in the old (WWII-era) maps originally used to specify survivors' positions, among other improvements. Distortion errors were corrected by aligning the old maps and neighborhood drawings to orthophotographic mosaics of the cities that were newly constructed from pre-bombing aerial photographs. Random errors that were reduced included simple transcription errors and mistakes in identifying survivors' locations on the old maps. Terrain shielding input data that had been originally estimated for limited groups of survivors using older methods and data sources were completely re-estimated for all survivors using new digital terrain elevation data. Improvements to algorithms included a fix to an error in the DS02 code for coupling house and terrain shielding, a correction for elevation at the survivor's location in calculating angles to the horizon used for terrain shielding input, an improved method for truncating high dose estimates to 4 Gy to reduce the effect of dose error, and improved methods for calculating averaged shielding transmission factors that are used to calculate doses for survivors without detailed shielding input data. Input data changes are summarized and described here in some detail, along with the resulting changes in dose estimates and a simple description of changes in risk estimates for solid cancer mortality. This and future RERF publications will refer to the new dose estimates described herein as "DS02R1 doses."
Collapse
Affiliation(s)
- H M Cullings
- *Department of Statistics, Radiation Effects Research Foundation, Hijiyama Park 5-2, Minami-ku, Hiroshima 732-0815, Japan; †Department of Epidemiology, Radiation Effects Research Foundation, Hijiyama Park 5-2, Minami-ku, Hiroshima 732-0815, Japan; ‡LEIDOS Corporation, San Diego, CA; §Department of Information Technology, Radiation Effects Research Foundation, Hijiyama Park 5-2, Minami-ku, Hiroshima 732-0815, Japan; **Biosample Center, Radiation Effects Research Foundation, Hijiyama Park 5-2, Minami-ku, Hiroshima 732-0815, Japan; ††Radiation Effects Research Foundation, Hijiyama Park 5-2, Minami-ku, Hiroshima 732-0815, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
8
|
Muto T, Kokubu T, Mifune Y, Inui A, Sakata R, Harada Y, Takase F, Kurosaka M. Effects of platelet-rich plasma and triamcinolone acetonide on interleukin-1ß-stimulated human rotator cuff-derived cells. Bone Joint Res 2016; 5:602-609. [PMID: 27965219 PMCID: PMC5227058 DOI: 10.1302/2046-3758.512.2000582] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 09/13/2016] [Indexed: 12/13/2022] Open
Abstract
Objectives Triamcinolone acetonide (TA) is widely used for the treatment of rotator cuff injury because of its anti-inflammatory properties. However, TA can also produce deleterious effects such as tendon degeneration or rupture. These harmful effects could be prevented by the addition of platelet-rich plasma (PRP), however, the anti-inflammatory and anti-degenerative effects of the combined use of TA and PRP have not yet been made clear. The objective of this study was to determine how the combination of TA and PRP might influence the inflammation and degeneration of the rotator cuff by examining rotator cuff-derived cells induced by interleukin (IL)-1ß. Methods Rotator cuff-derived cells were seeded under inflammatory stimulation conditions (with serum-free medium with 1 ng/ml IL-1ß for three hours), and then cultured in different media: serum-free (control group), serum-free + TA (0.1mg/ml) (TA group), serum-free + 10% PRP (PRP group), and serum-free + TA (0.1mg/ml) + 10% PRP (TA+PRP group). Cell morphology, cell viability, and expression of inflammatory and degenerative mediators were assessed. Results Exposure to TA significantly decreased cell viability and changed the cell morphology; these effects were prevented by the simultaneous administration of PRP. Compared with the control group, expression levels of inflammatory genes and reactive oxygen species production were reduced in the TA, PRP, and TA+PRP groups. PRP significantly decreased the expression levels of degenerative marker genes. Conclusions The combination of TA plus PRP exerts anti-inflammatory and anti-degenerative effects on rotator cuff-derived cells stimulated by IL-1ß. This combination has the potential to relieve the symptoms of rotator cuff injury. Cite this article: T. Muto, T. Kokubu, Y. Mifune, A. Inui, R. Sakata, Y. Harada, F. Takase, M. Kurosaka. Effects of platelet-rich plasma and triamcinolone acetonide on interleukin-1ß-stimulated human rotator cuff-derived cells. Bone Joint Res 2016;5:602–609. DOI: 10.1302/2046-3758.512.2000582.
Collapse
Affiliation(s)
- T Muto
- Department of Orthopedic Surgery, Kobe University Graduate School of Medicine, Kobe City, Japan
| | - T Kokubu
- Department of Orthopedic Surgery, Kobe University Graduate School of Medicine, Kobe City, Japan
| | - Y Mifune
- Department of Orthopedic Surgery, Kobe University Graduate School of Medicine, Kobe City, Japan
| | - A Inui
- Department of Orthopedic Surgery, Kobe University Graduate School of Medicine, Kobe City, Japan
| | - R Sakata
- Department of Orthopedic Surgery, Kobe University Graduate School of Medicine, Kobe City, Japan
| | - Y Harada
- Department of Orthopedic Surgery, Kobe University Graduate School of Medicine, Kobe City, Japan
| | - F Takase
- Department of Orthopedic Surgery, Kobe University Graduate School of Medicine, Kobe City, Japan
| | - M Kurosaka
- Department of Orthopedic Surgery, Kobe University Graduate School of Medicine, Kobe City, Japan
| |
Collapse
|
9
|
Ozasa K, Sakata R, Cullings HM, Grant EJ. Association of Acute Radiation Syndrome and Rain after the Bombings in Atomic Bomb Survivors. Radiat Res 2016; 185:604-15. [PMID: 27223827 DOI: 10.1667/rr14038.1] [Citation(s) in RCA: 6] [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: 11/03/2022]
Abstract
Acute radiation-induced symptoms reported in survivors after the atomic bombings in Hiroshima and Nagasaki have been suspected to be associated with rain that fell after the explosions, but this association has not been evaluated in an epidemiological study that considers the effects of the direct dose from the atomic bombs and other factors. The aim of this study was to evaluate this association using information from a fixed cohort, comprised of 93,741 members of the Life Span Study who were in the city at the time of the bombing. Information on acute symptoms and exposure to rain was collected in surveys conducted by interviewers, primarily in the 1950s. The proportion of survivors developing severe epilation was around 60% at levels of direct radiation doses of 3 Gy or higher and less than 0.2% at levels <0.005 Gy regardless of reported rain exposure status. The low prevalence of acute symptoms at low direct doses indicates that the reported fallout rain was not homogeneously radioactive at a level sufficient to cause a substantial probability of acute symptoms. We observed that the proportion of reported acute symptoms was slightly higher among those who reported rain exposure in some subgroups, however, suggestions that rain was the cause of these reported symptoms are not supported by analyses specific to the known areas of radioactive fallout. Misclassification of exposure and outcome, including symptoms due to other causes and recall bias, appears to be a more plausible explanation. However, the insufficient and retrospective nature of the available data limited our ability to quantify the attribution to those possible causes.
Collapse
Affiliation(s)
- K Ozasa
- a Departments of Epidemiology and
| | - R Sakata
- a Departments of Epidemiology and
| | - H M Cullings
- b Statistics, Radiation Effects Research Foundation, Hiroshima, Japan
| | | |
Collapse
|
10
|
Milder C, Sakata R, Sugiyama H, Sadakane A, Utada M, Cordova K, Hida A, Ohishi W, Ozasa K, Grant E. Initial Report for the Radiation Effects Research Foundation F1 Mail Survey. Asian Pac J Cancer Prev 2016; 17:1313-23. [PMID: 27039765 DOI: 10.7314/apjcp.2016.17.3.1313] [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: 11/10/2022] Open
Abstract
To study the full health effects of parental radiation exposure on the children of the atomic bomb survivors, the Radiation Effects Research Foundation developed a cohort of 76,814 children born to atomic bomb survivors (F1 generation) to assess cancer incidence and mortality from common adult diseases. In analyzing radiationassociated health information, it is important to be able to adjust for sociodemographic and lifestyle variations that may affect health. In order to gain this and other background information on the F1 cohort and to determine willingness to participate in a related clinical study, the F1 Mail Survey Questionnaire was designed with questions corresponding to relevant health, sociodemographic, and lifestyle indicators. Between the years 2000 and 2006, the survey was sent to a subset of the F1 Mortality Cohort. A total of 16,183 surveys were completed and returned: 10,980 surveys from Hiroshima residents and 5,203 from Nagasaki residents. The response rate was 65.6%, varying somewhat across parental exposure category, city, gender, and year of birth. Differences in health and lifestyle were noted in several variables on comparison across city and gender. No major differences in health, lifestyle, sociodemographics, or disease were seen across parental exposure categories, though statistically significant tests for heterogeneity and linear trend revealed some possible changes with dose. The data described herein provide a foundation for studies in the future.
Collapse
Affiliation(s)
- Cm Milder
- Department of Epidemiology, Radiation Effects Research Foundation, Hiroshima and Nagasaki, Japan E-mail :
| | | | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Ozasa K, Shimizu Y, Pham TM, Grant EJ, Sakata R, Sugiyama H, Sadakane A, Soda M, Kodama K. Radiation Risk of Mortality of Cancer and Noncancer Diseases in the Atomic-bomb Survivors. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv096.235] [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
|
12
|
Sakata R, Kabutomori R, Okano K, Mitsui H, Takemura A, Miwa T, Yamamoto H, Okano T. Rhodopsin in the Dark Hot Sea: Molecular Analysis of Rhodopsin in a Snailfish, Careproctus rhodomelas, Living near the Deep-Sea Hydrothermal Vent. PLoS One 2015; 10:e0135888. [PMID: 26275172 PMCID: PMC4537116 DOI: 10.1371/journal.pone.0135888] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 07/27/2015] [Indexed: 11/19/2022] Open
Abstract
Visual systems in deep-sea fishes have been previously studied from a photobiological aspect; however, those of deep-sea fish inhabiting the hydrothermal vents are far less understood due to sampling difficulties. In this study, we analyzed the visual pigment of a deep-sea snailfish, Careproctus rhodomelas, discovered and collected only near the hydrothermal vents of oceans around Japan. Proteins were solubilized from the C. rhodomelas eyeball and subjected to spectroscopic analysis, which revealed the presence of a pigment characterized by an absorption maximum (λmax) at 480 nm. Immunoblot analysis of the ocular protein showed a rhodopsin-like immunoreactivity. We also isolated a retinal cDNA encoding the entire coding sequence of putative C. rhodomelas rhodopsin (CrRh). HEK293EBNA cells were transfected with the CrRh cDNA and the proteins extracted from the cells were subjected to spectroscopic analysis. The recombinant CrRh showed the absorption maximum at 480 nm in the presence of 11-cis retinal. Comparison of the results from the eyeball extract and the recombinant CrRh strongly suggests that CrRh has an A1-based 11-cis-retinal chromophore and works as a photoreceptor in the C. rhodomelas retina, and hence that C. rhodomelas responds to dim blue light much the same as other deep-sea fishes. Because hydrothermal vent is a huge supply of viable food, C. rhodomelas likely do not need to participate diel vertical migration and may recognize the bioluminescence produced by aquatic animals living near the hydrothermal vents.
Collapse
Affiliation(s)
- Rie Sakata
- Department of Electrical Engineering and Bioscience, Graduate School of Advanced Science and Engineering, Waseda University (TWIns), Tokyo, Japan
| | - Ryo Kabutomori
- Department of Electrical Engineering and Bioscience, Graduate School of Advanced Science and Engineering, Waseda University (TWIns), Tokyo, Japan
| | - Keiko Okano
- Department of Electrical Engineering and Bioscience, Graduate School of Advanced Science and Engineering, Waseda University (TWIns), Tokyo, Japan
| | - Hiromasa Mitsui
- Department of Electrical Engineering and Bioscience, Graduate School of Advanced Science and Engineering, Waseda University (TWIns), Tokyo, Japan
| | - Akihiro Takemura
- Department of Chemistry, Biology, and Marine Science, Faculty of Science, University of the Ryukyus, Okinawa, Japan
| | - Tetsuya Miwa
- Marine Technology Development Department, Marine Technology and Engineering Center, Japan Agency for Marine Earth Science and Technology (JAMSTEC), Yokosuka, Japan
| | - Hiroyuki Yamamoto
- Environmental Impact Assessment Research Group, Research and Development Centre for Submarine Resources, Japan Agency for Marine Earth Science and Technology (JAMSTEC), Yokosuka, Japan
| | - Toshiyuki Okano
- Department of Electrical Engineering and Bioscience, Graduate School of Advanced Science and Engineering, Waseda University (TWIns), Tokyo, Japan
- * E-mail:
| |
Collapse
|
13
|
Kitamura M, Sakata R, Tashiro N, Ikegami A, Okauchi T. Synthesis of Diazonaphthoquinones from Naphthols by Diazo-Transfer Reaction. BCSJ 2015. [DOI: 10.1246/bcsj.20150021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - Rie Sakata
- Department of Applied Chemistry, Kyushu Institute of Technology
| | | | - Azusa Ikegami
- Department of Applied Chemistry, Kyushu Institute of Technology
| | - Tatsuo Okauchi
- Department of Applied Chemistry, Kyushu Institute of Technology
| |
Collapse
|
14
|
Grant EJ, Ozasa K, Ban N, de González AB, Cologne J, Cullings HM, Doi K, Furukawa K, Imaoka T, Kodama K, Nakamura N, Niwa O, Preston DL, Rajaraman P, Sadakane A, Saigusa S, Sakata R, Sobue T, Sugiyama H, Ullrich R, Wakeford R, Yasumura S, Milder CM, Shore RE. A report from the 2013 international symposium: the evaluation of the effects of low-dose radiation exposure in the life span study of atomic bomb survivors and other similar studies. Health Phys 2015; 108:551-556. [PMID: 25811153 DOI: 10.1097/hp.0000000000000262] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The RERF International Low-Dose Symposium was held on 5-6 December 2013 at the RERF campus in Hiroshima, Japan, to discuss the issues facing the Life Span Study (LSS) and other low-dose studies. Topics included the current status of low-dose risk detection, strategies for low-dose epidemiological and statistical research, methods to improve communication between epidemiologists and biologists, and the current status of radiological studies and tools. Key points made by the participants included the necessity of pooling materials over multiple studies to gain greater insight where data from single studies are insufficient; generating models that reflect epidemiological, statistical, and biological principles simultaneously; understanding confounders and effect modifiers in the current data; and taking into consideration less studied factors such as the impact of dose rate. It is the hope of all participants that this symposium be used as a trigger for further studies, especially those using pooled data, in order to reach a greater understanding of the health effects of low-dose radiation.
Collapse
Affiliation(s)
- E J Grant
- *Radiation Effects Research Foundation, Hiroshima, Japan; †Tokyo Healthcare University, Tokyo, Japan; ‡U.S. National Cancer Institute, Bethesda, MD; §National Institute of Radiological Sciences, Chiba, Japan; **Fukushima Medical University, Fukushima, Japan; ††Hirosoft, Eureka, CA; ‡‡Osaka University, Osaka, Japan; §§University of Manchester, Manchester, UK
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
15
|
Harada Y, Kokubu T, Mifune Y, Inui A, Sakata R, Muto T, Takase F, Kurosaka M. Dose- and time-dependent effects of triamcinolone acetonide on human rotator cuff-derived cells. Bone Joint Res 2014; 3:328-34. [PMID: 25477418 PMCID: PMC4286699 DOI: 10.1302/2046-3758.312.2000321] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Objectives To investigate the appropriate dose and interval for the administration
of triamcinolone acetonide (TA) in treating tendinopathy to avoid
adverse effects such as tendon degeneration and rupture. Methods Human rotator cuff-derived cells were cultured using three media:
regular medium (control), regular medium with 0.1 mg/mL of TA (low
TA group), and with 1.0 mg/mL of TA (high TA group). The cell morphology,
apoptosis, and viability were assessed at designated time points. Results In the low TA group, the cells became flattened and polygonal
at seven days then returned to normal at 21 days. The cell apoptosis
ratio and messenger ribonucleic acid expression of caspase-3, 7,
8, and 9 increased, and viability was reduced in the low and high
groups at seven days. In the low TA group, apoptosis and viability returned
to normal at 21 days, however, in the high TA group, the cell morphology,
apoptosis ratio, caspase-3, 7, 8, and 9 and viability did not return
by day 21. Re-administration was performed in the low TA group at
7-, 14-, and 21-day intervals, and cell viability did not return
to the control level at the 7- and 14-day intervals. Conclusion A 0.1 mg/mL dose of TA temporarily decreased cell viability and
increased cell apoptosis, which was recovered at 21 days, however,
1 mg/mL of TA caused irreversible damage to cell morphology and
viability. An interval > three weeks was needed to safely re-administer
TA. These findings may help determine the appropriate dose and interval
for TA injection therapy. Cite this article: Bone Joint Res 2014;3:328–34.
Collapse
Affiliation(s)
- Y Harada
- Kobe University Graduate School of Medicine, Department of Orthopedic Surgery, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 6500017, Japan
| | - T Kokubu
- Kobe University Graduate School of Medicine, Department of Orthopedic Surgery, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 6500017, Japan
| | - Y Mifune
- Kobe University Graduate School of Medicine, Department of Orthopedic Surgery, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 6500017, Japan
| | - A Inui
- Kobe University Graduate School of Medicine, Department of Orthopedic Surgery, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 6500017, Japan
| | - R Sakata
- Kobe University Graduate School of Medicine, Department of Orthopedic Surgery, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 6500017, Japan
| | - T Muto
- Kobe University Graduate School of Medicine, Department of Orthopedic Surgery, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 6500017, Japan
| | - F Takase
- Kobe University Graduate School of Medicine, Department of Orthopedic Surgery, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 6500017, Japan
| | - M Kurosaka
- Kobe University Graduate School of Medicine, Department of Orthopedic Surgery, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe, 6500017, Japan
| |
Collapse
|
16
|
Marui A, Shiomi H, Kimura T, Tanaka S, Hanyu M, Komiya T, Kita T, Sakata R. Impact of coronary artery bypass surgery on long-term outcomes in patients with heart failure: from the CREDO-Kyoto PCI/CABG registry Cohort-2. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.4625] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
17
|
Marui A, Kimura T, Hanyu M, Komiya T, Shiomi H, Kita T, Sakata R. 094 * IMPACT OF CORONARY ARTERY BYPASS SURGERY ON LONG-TERM OUTCOMES IN PATIENTS WITH HEART FAILURE: FROM THE CREDO-KYOTO PERCUTANEOUS CORONARY INTERVENTION/CORONARY ARTERY BYPASS GRAFT REGISTRY COHORT-2. Interact Cardiovasc Thorac Surg 2013. [DOI: 10.1093/icvts/ivt372.94] [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
|
18
|
Matsuo TM, Masumoto H, Tajima S, Marui A, Ikeda T, Tabata Y, Sakata R, Yamashita JK. An efficient piling up of pluripotent stem cell-derived cardiac tissue-like sheets that robustly promotes cell engraftment and ameliorates cardiac dysfunction after myocardial infarction. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.p1465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
19
|
Ikuno T, Masumoto H, Marui A, Ikeda T, Sakata R, Yamashita JK. Efficient endothelial cell differentiation protocol from human induced pluripotent stem cells based on monolayer and serum-free culture for realization of vascular regenerative medicine. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.4371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
20
|
Abstract
OBJECTIVE To investigate the impact of smoking on overall mortality and life expectancy in a large Japanese population, including some who smoked throughout adult life. DESIGN The Life Span Study, a population-based prospective study, initiated in 1950. SETTING Hiroshima and Nagasaki, Japan. PARTICIPANTS Smoking status for 27,311 men and 40,662 women was obtained during 1963-92. Mortality from one year after first ascertainment of smoking status until 1 January 2008 has been analysed. MAIN OUTCOME MEASURES Mortality from all causes in current, former, and never smokers. RESULTS Smokers born in later decades tended to smoke more cigarettes per day than those born earlier, and to have started smoking at a younger age. Among those born during 1920-45 (median 1933) and who started smoking before age 20 years, men smoked on average 23 cigarettes/day, while women smoked 17 cigarettes/day, and, for those who continued smoking, overall mortality was more than doubled in both sexes (rate ratios versus never smokers: men 2.21 (95% confidence interval 1.97 to 2.48), women 2.61 (1.98 to 3.44)) and life expectancy was reduced by almost a decade (8 years for men, 10 years for women). Those who stopped smoking before age 35 avoided almost all of the excess risk among continuing smokers, while those who stopped smoking before age 45 avoided most of it. CONCLUSIONS The lower smoking related hazards reported previously in Japan may have been due to earlier birth cohorts starting to smoke when older and smoking fewer cigarettes per day. In Japan, as elsewhere, those who start smoking in early adult life and continue smoking lose on average about a decade of life. Much of the risk can, however, be avoided by giving up smoking before age 35, and preferably well before age 35.
Collapse
Affiliation(s)
- R Sakata
- Department of Epidemiology, Radiation Effects Research Foundation, Hiroshima, Japan
| | - P McGale
- Clinical Trial Service Unit, University of Oxford, Oxford OX3 7LF, UK
| | - E J Grant
- Department of Epidemiology, Radiation Effects Research Foundation, Hiroshima, Japan
| | - K Ozasa
- Department of Epidemiology, Radiation Effects Research Foundation, Hiroshima, Japan
| | - R Peto
- Clinical Trial Service Unit, University of Oxford, Oxford OX3 7LF, UK
| | - S C Darby
- Clinical Trial Service Unit, University of Oxford, Oxford OX3 7LF, UK
| |
Collapse
|
21
|
Grant EJ, Ozasa K, Preston DL, Suyama A, Shimizu Y, Sakata R, Sugiyama H, Pham TM, Cologne J, Yamada M, De Roos AJ, Kopecky KJ, Porter MP, Seixas N, Davis S. Effects of Radiation and Lifestyle Factors on Risks of Urothelial Carcinoma in the Life Span Study of Atomic Bomb Survivors. Radiat Res 2012; 178:86-98. [DOI: 10.1667/rr2841.1] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
22
|
Muranaka H, Sakata R. [Cardiovascular surgery for patient with pulmonary dysfunction]. Kyobu Geka 2012; 65:621-624. [PMID: 22868417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Pulmonary dysfunction is one of the major factors for postoperative pulmonary complication. Preoperative pulmonary function test reveals possible operative risk. Particularly, in the patient with stage Ⅲ and Ⅳ chronic obstructive pulmonary disease (COPD), open heart surgery with cardiopulmonary bypass is at higher risk of complication. In these patients, safe and reliable surgical procedures are required. Preoperatively, quitting smoking and incentive spirometry can reduce the risk of pulmonary complications. Furthermore, noninvasive positive pressure ventilation (NPPV) on the appropriate indication can help to improve the outcome in the patients with pulmonary dysfunction.
Collapse
Affiliation(s)
- H Muranaka
- Department of Cardiovascular Surgery, Kyoto University School of Medicine, Japan
| | | |
Collapse
|
23
|
Kitamura M, Kisanuki M, Sakata R, Okauchi T. Pd(II)-catalyzed Formal O–H Insertion Reactions of Diazonaphthoquinones to Acetic Acid: Synthesis of 1,2-Naphthalenediol Derivatives. CHEM LETT 2011. [DOI: 10.1246/cl.2011.1129] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
24
|
Grant EJ, Kubo T, Sakata R, Cologne JB, Suyama A, Ozasa K. P1-438 The urothelial carcinoma risks of radiation, smoking and occupational exposures: a case-cohort study with stratified sampling among a-bomb survivors. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976g.28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
25
|
Abstract
The molecule of the title compound, C10H6N2O, is nearly planar [maximum deviation = 0.030 (1) Å]. The CN2 moiety is almost linear, with a C—N—N angle of 175.50 (14)°. A single intermolecular C—H⋯O hydrogen bond is observed in the crystal structure. A π–π interaction is also observed with the shortest distance being 3.6832 (12) Å between the the centroids of the six-membered rings.
Collapse
|
26
|
|
27
|
Tsubota H, Marui A, Esaki J, Bir S, Ikeda T, Sakata R. Remote Postconditioning may Attenuate Ischaemia–Reperfusion Injury in the Murine Hindlimb Through Adenosine Receptor Activation. Eur J Vasc Endovasc Surg 2010; 40:804-9. [DOI: 10.1016/j.ejvs.2010.08.014] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2010] [Accepted: 08/14/2010] [Indexed: 01/19/2023]
|
28
|
Kitamura M, Tashiro N, Sakata R, Okauchi T. Synthesis of Diazonaphthoquinones from Naphthols by Diazo-Transfer Reaction with 2-Azido-1,3-dimethylimidazolinium Chloride. Synlett 2010. [DOI: 10.1055/s-0030-1258568] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
29
|
Sakata R, Nishiyori A, Fukuda K. Simultaneous genotyping of alcohol dehydrogenase 2 and aldehyde dehydrogenase 2 by single‐strand conformation polymorphism analysis. Scandinavian Journal of Clinical and Laboratory Investigation 2009; 63:467-71. [PMID: 14743955 DOI: 10.1080/00365510310002815] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Alcohol dehydrogenase (ADH; EC 1.1.1.1) and aldehyde dehydrogenase (ALDH; EC 1.2.1.3) have important roles in the elimination of ingested ethanol. These enzymes have polymorphisms resulting from single-point mutations that cause kinetic differences in their respective enzyme activities. Simultaneous observation of these enzymes would be useful in investigating the association between these enzyme polymorphisms and alcohol-related problems. In this study amplified genomic DNA was amplified from nail clippings with two sets of primers for ADH2 and ALDH2 genes, respectively, in a micro test tube and the accuracy of the amplification was verified by direct sequencing. The PCR products were separated into four distinct bands by single-strand conformation polymorphism analysis. This genotyping method is fast, accurate. reliable and inexpensive, and requires the same amount of template DNA as non-simultaneous methods. In other words, the required amount of template DNA for this method is only half that required for the separate genotyping of ADH2 and ALDH2.
Collapse
Affiliation(s)
- R Sakata
- Department of Public Health, Kurume University School of Medicine, Kurume, Japan.
| | | | | |
Collapse
|
30
|
Saji Y, Sakata R. [New technology of intraaortic balloon pumping device]. Kyobu Geka 2009; 62:688-691. [PMID: 20715693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Intraaortic balloon pumping (IABP) is the most popular circulatory assist device in cardiac surgery. In the development of IABP several modifications have been made. First, reduction in the caliber to 6 Fr is the most important modification of the IABP catheter to relatively small Japanese patients. Second, direct pressure measurement through the tip of the catheter enabled more accurate and real-time assist. Third, a novel balloon pump automatically selects the trigger source, arranges the timing of the IABP inflation/deflation, and detects the arrhythmias. Further development of IABP will bring safer and more reliable hemodynamic management in cardiac surgery.
Collapse
Affiliation(s)
- Yoshiaki Saji
- Department of Cardiovascular Surgery, Kyoto University, Kyoto, Japan
| | | |
Collapse
|
31
|
Shiraishi Y, Yambe T, Saijo Y, Sato F, Tanaka A, Yoshizawa M, Sugai TK, Sakata R, Luo Y, Park Y, Uematsu M, Umezu M, Fujimoto T, Masumoto N, Liu H, Baba A, Konno S, Nitta S, Imachi K, Tabayashi K, Sasada H, Homma D. Sensorless control for a sophisticated artificial myocardial contraction by using shape memory alloy fibre. Annu Int Conf IEEE Eng Med Biol Soc 2009; 2008:711-4. [PMID: 19162754 DOI: 10.1109/iembs.2008.4649251] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The authors have been developing an artificial myocardium, which is capable of supporting natural contractile function from the outside of the ventricle. The system was originally designed by using sophisticated covalent shape memory alloy fibres, and the surface did not implicate blood compatibility. The purpose of our study on the development of artificial myocardium was to achieve the assistance of myocardial functional reproduction by the integrative small mechanical elements without sensors, so that the effective circulatory support could be accomplished. In this study, the authors fabricated the prototype artificial myocardial assist unit composed of the sophisticated shape memory alloy fibre (Biometal), the diameter of which was 100 microns, and examined the mechanical response by using pulse width modulation (PWM) control method in each unit. Prior to the evaluation of dynamic characteristics, the relationship between strain and electric resistance and also the initial response of each unit were obtained. The component for the PWM control was designed in order to regulate the myocardial contractile function, which consisted of an originally-designed RISC microcomputer with the input of displacement, and its output signal was controlled by pulse wave modulation method. As a result, the optimal PWM parameters were confirmed and the fibrous displacement was successfully regulated under the different heat transfer conditions simulating internal body temperature as well as bias tensile loading. Then it was indicated that this control theory might be applied for more sophisticated ventricular passive or active restraint by the artificial myocardium on physiological demand.
Collapse
Affiliation(s)
- Y Shiraishi
- Institute of Development, Aging and Cancer, Graduate School of Biomedical Engineering, Tohoku University, Sendai 980-8575, Japan.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Inoue H, Iguro Y, Kinjo T, Matsumoto H, Yotsumoto G, Sakata R. Acquired left ventricular-right atrial communication and severe aortic valve regurgitation caused by infective endocarditis. Thorac Cardiovasc Surg 2009; 57:54-6. [PMID: 19170001 DOI: 10.1055/s-2007-989456] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
We report here on a surgical case of acquired left ventricular right atrial communication (LV-RA communication) and aortic regurgitation (AR) caused by infective endocarditis (IE). We successfully treated the patient with composite patches made from polytetrafluoroethylene (PTFE) and autologous pericardium. In general, LV-RA communication is a rare congenital cardiac anomaly (Gerbode-type shunt). However, acquired LV-RA communications secondary to IE are occasionally reported.When repairing an acquired condition due to IE, particular care should be taken to avoid recurrence, persistent infection and iatrogenic atrioventricular block.
Collapse
Affiliation(s)
- H Inoue
- Department of Thoracic, Cardiovascular and Hepatobiliary-Pancreatic Surgery, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan.
| | | | | | | | | | | |
Collapse
|
33
|
Kariatsumari K, Nakamura Y, Sakasegawa K, Nagata T, Hanaoka N, Sakata R. [The use of 19 Fr silicone drains in chest surgery]. Kyobu Geka 2008; 61:1006-1010. [PMID: 19048896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We evaluated a single 19 Fr Blake drain after chest surgery retrospectively. 50 patients underwent drainage of their pleural cavity using Blake drains. Blake drain was found to be effective in drainage of both air and fluid. In addition, this soft silicone drain seemed to improve the comfort of the patients. One single Blake drain is considered to be an option for chest drainage in most of general thoracic surgery.
Collapse
Affiliation(s)
- K Kariatsumari
- Department of Thoracic and Cardiovascular Surgery, Hepato-biliary-pancreatic Surgery, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | | | | | | | | | | |
Collapse
|
34
|
Matsumoto K, Sakata R. [Cardiac surgery in patients with liver dysfunction; preoperative assessment, determinants, and consequences]. Kyobu Geka 2008; 61:649-655. [PMID: 20715404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The population of patients with liver cirrhosis and congestive liver who are referred for cardiac operation is not large and definitive indications for surgical interventions remain unknown. We reviewed the literature on its clinical features and outcomes after cardiac surgery that would help cardiac surgeons to decide cardiac modality. According to our experiences, in cirrhotic patients, cardiac surgery can be performed safely in Child-Pugh class A and selected patients with class B. In addition, liver cirrhosis causes postoperative deterioration of liver function, especially when the indocyanine green (ICG)-R15 value exceeds 40%. Technetium-99m galactosyl human serum albumin liver scintigraphy is also useful for preoperative assessment. In patients with congestive liver, preoperative serum total bilirubin and technetium-99m galactosyl human serum albumin liver scintigraphy may become the determinant of indications. Careful patient selection and intensive perioperative care are required to improve the clinical outcome in patients with liver dysfunction undergoing cardiac surgery.
Collapse
Affiliation(s)
- Kazuhisa Matsumoto
- Department of Thoracic and Cardiovascular Surgery, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | | |
Collapse
|
35
|
Hayashi S, Baba Y, Ueno K, Nakajo M, Kubo F, Ueno S, Aikou T, Komokata T, Nakamura N, Sakata R. Acceleration of primary liver tumor growth rate in embolized hepatic lobe after portal vein embolization. Acta Radiol 2007; 48:721-7. [PMID: 17729001 DOI: 10.1080/02841850701424514] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Portal vein embolization (PVE) is now widely accepted as a useful preoperative procedure in selected patients undergoing extended hepatectomy. However, the effect of PVE on the growth of liver tumors has not been fully elucidated. PURPOSE To retrospectively evaluate the effects of PVE on the growth of liver tumors in the embolized lobes. MATERIAL AND METHODS Eight patients with a primary liver tumor, six hepatocellular carcinomas (HCC) and two cholangiocellular carcinomas (CCC), were studied. The growth rates of the tumors in the embolized lobes and non-embolized liver parenchyma were calculated using the computed tomography (CT) volume values at the time of tumor identification, and before and after PVE. RESULT The median tumor growth rate was 0.59 cm(3)/day (range 0.22-6.01 cm(3)/day) before PVE and 2.37 cm(3)/day (range 0.29-13.97 cm(3)/day) after PVE (P = 0.018). The tumor growth acceleration ratios ranged from 1.50 to 7.46 (median 2.65) in the six HCCs, and were 1.00 and 1.32 in the two CCCs. There was no apparent correlation between the tumor growth rate after PVE and the growth rate of non-embolized liver parenchyma (median 6.00 cm(3)/day, range 1.24-11.0 cm(3)/day). CONCLUSION Liver tumor growth in an embolized lobe accelerates after PVE, in patients with HCC.
Collapse
Affiliation(s)
- S Hayashi
- Department of Radiology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima-shi, Kagoshima 890-8544, Japan.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Shiraishi Y, Yambe T, Saijo Y, Sato F, Tanaka A, Yoshizawa M, Ogawa D, Wada Y, Itoh S, Sakata R, Park Y, Uematsu M, Umezu M, Fujimoto T, Masumoto N, Liu H, Baba A, Konno S, Nitta S, Imachi K, Tabayashi K, Sasada H, Homma D. Morphological Approach for the Functional Improvement of an Artificial Myocardial Assist Device using Shape Memory Alloy Fibres. ACTA ACUST UNITED AC 2007; 2007:3974-7. [DOI: 10.1109/iembs.2007.4353204] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
37
|
Abstract
AIM To clarify the expression of immature and mature retinal cell makers in retinoblastoma cells and to give insights into the cell origin of the retinoblastoma. MATERIALS AND METHODS Five samples from five eyes diagnosed with retinoblastomas were analysed by a standard immunohistochemistry using antibodies against Nestin and the hairy and enhancer of split mammalian homologue-1 (HES-1), both as markers for undifferentiated cells, and against Chx10, as a marker for both undifferentiated retinal cells and mature bipolar cells. Photoreceptor-specific nuclear receptor (PNR) was used as a postmitotic rod photoreceptor cell-specific marker, glial fibrillary acidic protein (GFAP) as a mature glia cell marker, and microtubule-associated protein (MAP) 2 as a mature neuronal cell marker. RESULTS Nestin was detected in what were possibly Müller cells, but not in the tumour stroma. HES-1 was not detected in the retinoblastoma tissue. Chx10 was detected in one of the five samples. In this one sample, Chx10 expression was confined in a minor portion of the retinoblastoma cells. PNR was not detected in the retinoblastoma tissue. Expression of GFAP was detected only in the stromal cells of the tumour, which presumably represents reactive stromal astrocytes. In contrast, in all the samples, MAP2 was expressed in most of the retinoblastoma cells. CONCLUSIONS The results of the current study support that retinoblastomas are derived from mature neural cells but do not originate from tumour stem cell(s).
Collapse
Affiliation(s)
- R Sakata
- Department of Ophthalmology, University of Tokyo School of Medicine, 7-3-1, Bunkyo-ku, Tokyo, Japan
| | | |
Collapse
|
38
|
Fujita Y, Shibata A, Ogimoto I, Kurozawa Y, Nose T, Yoshimura T, Suzuki H, Iwai N, Sakata R, Ichikawa S, Tamakoshi A. The effect of interaction between hepatitis C virus and cigarette smoking on the risk of hepatocellular carcinoma. Br J Cancer 2006; 94:737-9. [PMID: 16465190 PMCID: PMC2361208 DOI: 10.1038/sj.bjc.6602981] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
We evaluated the interaction between hepatitis C virus (HCV) and cigarette smoking on death from hepatocellular cancer in The Japan Collaborative Cohort Study. The odds ratio of death from HCC for smoking was 9.60 (1.50–61.35) and 1.71(0.58–5.08) among anti-HCV positive and negative individuals, respectively.
Collapse
Affiliation(s)
- Y Fujita
- Department of Public Health, Kurume University School of Medicine, Kurume 830-0011, Japan.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Kurozawa Y, Ogimoto I, Shibata A, Nose T, Yoshimura T, Suzuki H, Sakata R, Fujita Y, Ichikawa S, Iwai N, Tamakoshi A. Coffee and risk of death from hepatocellular carcinoma in a large cohort study in Japan. Br J Cancer 2005; 93:607-10. [PMID: 16091758 PMCID: PMC2361599 DOI: 10.1038/sj.bjc.6602737] [Citation(s) in RCA: 86] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
We examined the relation between coffee drinking and hepatocellular carcinoma (HCC) mortality in the Japan Collaborative Cohort Study for Evaluation of Cancer Risk (JACC Study). In total, 110 688 cohort members (46 399 male and 64 289 female subjects) aged 40–79 years were grouped by coffee intake into three categories: one or more cups per day, less than one cup per day and non-coffee drinkers. Cox proportional hazards model by SAS was used to obtain hazard ratio of HCC mortality for each coffee consumption categories. The hazard ratios were adjusted for age, gender, educational status, history of diabetes and liver diseases, smoking habits and alcohol. The hazard ratio of death due to HCC for drinkers of one and more cups of coffee per day, compared with non-coffee drinkers, was 0.50 (95% confidence interval 0.31–0.79), and the ratio for drinkers of less than one cup per day was 0.83 (95% confidence interval 0.54–1.25). Our data confirmed an inverse association between coffee consumption and HCC mortality.
Collapse
Affiliation(s)
- Y Kurozawa
- Department of Social Medicine, Division of Health Administration and Promotion, Faculty of Medicine, Tottori University, Nishimachi 86, Yonago 683-8503, Japan.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
40
|
Abstract
BACKGROUND In this study, we investigated the effects of oestrogen on nitric oxide synthase activity and nitric oxide production using the cirrhotic rat liver. MATERIAL AND METHODS Cirrhosis was induced by dimethylnitrosamine. Estradiol valerate was subcutaneously injected twice at week 4 after dimethylnitrosamine treatment. Furthermore, subcutaneous injection of an oestrogen receptor antagonist, ICI-182.780, was performed 2 days before administration of estradiol valerate. Portal pressure and hepatic blood flow were measured. Nitric oxide synthase activity was assessed by l-citrulline generation. Sinusoidal endothelial cells were isolated from the cirrhotic rat liver and cultured. The cells were incubated with estradiol and/or ICI-182.780 for 24 h. Images for nitric oxide in sinusoidal endothelial cells were obtained using diaminofluorescein-2 diacetate. RESULTS Cirrhotic rats treated with estradiol valerate showed a significant decrease in portal pressure and a significant increase in hepatic blood flow compared with those of control cirrhosis rats. However, in cirrhotic rats treated with ICI-182.780, the reduction of portal pressure and elevation of hepatic blood flow were completely inhibited. In cirrhotic rats treated with estradiol valerate, nitric oxide synthase activity was increased compared with that in control cirrhotic rats. The fluorescent level of intracellular nitric oxide in estradiol-stimulated, cultured, sinusoidal endothelial cells was higher than that in nontreated sinusoidal endothelial cells. CONCLUSIONS The present study indicated that oestrogen plays an important role in the enhancement of nitric oxide production in sinusoidal endothelial cells of cirrhotic liver and reduces the portal pressure in cirrhotic rats.
Collapse
Affiliation(s)
- M Sakamoto
- Second Department of Medicine, Kurume University School of Medicine, 67 Asahi-machi, Kurume 830-0011, Japan
| | | | | | | | | | | | | |
Collapse
|
41
|
Nakayama R, Goto T, Kukita I, Sakata R. Sustained effects of plasma norepinephrine levels on femoral-radial pressure gradient after cardiopulmonary bypass. J Anesth 2005; 7:8-16. [PMID: 15278489 DOI: 10.1007/s0054030070008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/1992] [Accepted: 11/18/1991] [Indexed: 10/26/2022]
Abstract
In order to determine the influence of the sympathetic nervous system upon the femoral-radial artery pressure gradient after cardiopulmonary bypass (CPB), we examined plasma norepinephrine levels in 34 adult male patients undergoing coronary artery bypass grafting. Cardiovascular parameters, including systolic arterial pressure, mean arterial pressure, cardiac index (CI), systemic vascular resistance index (SVRI), pulmonary artery pressure (PAP), hemoglobin (Hb) and peak dP/dt of radial and femoral artery pressures were measured after sternotomy, and immediately after the discontinuation of CPB and 90 min after CPB. Plasma norepinephrine levels were measured after sternotomy, after aortic declamping and 90 min after CPB. The patients were divided into two groups. Group A consisted of 17 patients whose femoral minus radial systolic pressure difference was 15 mmHg or more at 90 min after CPB, while Group B consisted of 17 patients with the difference less than 15 mmHg. Group A patients had significantly longer time values in the duration of both CPB (Group A 175 +/- 10 min; Group B 115 +/- 12 min, P < 0.001) and aortic cross clamping (Group A 116 +/- 7 min, Group B 71 +/- 9 min, P < 0.001). Although there was no significant difference in Hb or PAP of 90 min after CPB in Groups A and B, the following values, listed in the order of A to B, were obtained; CI, 2.79 +/- 0.10 versus 3.46 +/- 0.16 l.min(-1).m(-2) (P < 0.01); mean radial artery pressure (MRP), 58.7 +/- 2.4 versus 65.1 +/- 1.8 mmHg (P < 0.05); peak dP/dt of radial artery pressure, 568 +/- 64 versus 1026 +/- 61 mmHg.sec(-1) (P < 0.001); and plasma norepinephrine concentration, 1.81 +/- 0.25 versus 0.98 +/- 0.10 ng.ml(-1) (P < 0.01), which were statistically significant. The higher femoral-radial artery pressure gradient after CPB was observed in patients with both a longer CPB time and a higher plasma norepinephrine concentration. These results suggest that a marked constriction of peripheral arteries might have produced a damped transmission of the pressure pulse to the radial artery.
Collapse
Affiliation(s)
- R Nakayama
- Departments of Anesthesiology and Cardiovascular Surgery, Kumamoto Chuo Hospital, Kumamoto, Japan
| | | | | | | |
Collapse
|
42
|
Watanabe S, Sakasegawa K, Kariatsumari K, Suehiro S, Kudama T, Shimokawa S, Sakata R. Bilateral video-assisted thoracoscopic surgery in the supine position for primary spontaneous pneumothorax. Thorac Cardiovasc Surg 2004; 52:42-4. [PMID: 15002075 DOI: 10.1055/s-2004-815800] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
On the basis of the bilateral nature of bullous lesions of the lung, the authors have performed single-stage bilateral video-assisted thoracoscopic surgery (VATS) in the supine position for primary spontaneous pneumothorax in five patients since October 1999. All five patients were males with a mean age of 23 years (range 19 to 29 years). The presenting pneumothorax was ipsilateral (right-sided) in four patients and simultaneous bilateral in the one remaining patient. Apart from the one case of simultaneous bilateral spontaneous pneumothorax (SBSP), all patients had a history of at least one pneumothorax episode requiring tube thoracotomy. Bilateral bullae were confirmed in all patients on preoperative chest computed tomography (CT). Bilateral bullectomy was performed by endo-stapler with no difficulties. Mean operating time was 111 minutes (range 85 to 140 minutes). All patients were returned to the surgical ward in good condition from the operating room immediately after extubation. No complications were observed, and duration of postoperative hospital stay was two to four days. All patients were alive without recurrence of pneumothorax after a mean follow-up period of 25 months (range, 9 to 43 months). Single-stage bilateral VATS in the supine position has shown itself to be an excellent approach for the treatment of bilateral bullous lesions, combining both efficacy and low morbidity.
Collapse
Affiliation(s)
- S Watanabe
- Second Department of Surgery, Kagoshima University Faculty of Medicine, Kagoshima, Japan.
| | | | | | | | | | | | | |
Collapse
|
43
|
Watanabe S, Nakamura Y, Sakasegawa K, Kariatsumari K, Itoh K, Sakata R. Supraclavicular Approach Without Thoracotomy for Posterior Mediastinal Tumor. Thorac Cardiovasc Surg 2004; 52:183-5. [PMID: 15192781 DOI: 10.1055/s-2004-817817] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Using a right-sided supraclavicular approach, we operated on a 15-year-old girl with a posterior mediastinal neurogenic tumor and von Recklinghausen's disease. The encapsulated 95 x 65 x 40 mm neurofibroma was removed safely and completely without thoracotomy. No peripheral neurologic defect such as Horner's syndrome, paralysis of accessory nerve, or palsy of the right upper extremity was observed after operation. The postoperative course was uneventful and the patient was discharged on the third postoperative day with no symptoms. Today, various adaptations of video-assisted thoracic surgery are frequently utilized for many lesions. However, more direct, safer, and less invasive approaches should be selected based on local anatomy, such as the supraclavicular approach without thoracotomy that we utilized.
Collapse
Affiliation(s)
- S Watanabe
- The Second Department of Surgery, Kagoshima University Faculty of Medicine, Kagoshima, Japan.
| | | | | | | | | | | |
Collapse
|
44
|
Watanabe SI, Shimokawa S, Sakasegawa KI, Nakamura Y, Kariatsumari K, Oyama H, Sakata R. The Figure-L Unilateral Mini-Sternotomy for Anterior Mediastinal Tumor. Thorac Cardiovasc Surg 2004; 52:54-6. [PMID: 15002078 DOI: 10.1055/s-2004-815803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
We performed a figure-L unilateral mini-sternotomy for anterior mediastinal tumor resection in ten patients. Pathological diagnosis among the ten included six thymomas, three mature teratomas including one with a seminoma component, and one thymic cyst. Mean tumor length was 7 x 5 x 4 cm. The required skin incision was 8 cm in mean length. The third intercostal space was transected in six cases, the fourth intercostal space in four cases. Bilateral internal thoracic arteries were preserved in all cases. All tumors were completely resected without complications during the procedure. Mean operating time was 106 minutes (range 85 to 120 minutes). Postoperative hospital stay ranged from three to seven days without any complications. All patients were alive at the end of a mean follow-up period of 39 months (range 3 to 60 months). The figure-L unilateral mini-sternotomy is considered an effective and useful minimally invasive approach for anterior mediastinal tumors.
Collapse
Affiliation(s)
- S-I Watanabe
- Second Department of Surgery, Kagoshima University Faculty of Medicine, Kagoshima, Japan.
| | | | | | | | | | | | | |
Collapse
|
45
|
Abstract
BACKGROUND It is known that mechanical stress induces extracellular matrix via transforming growth factor-beta (TGF-beta) synthesis in vascular smooth muscle cells. Activated hepatic stellate cells (HSCs) are an important source of TGF-beta in the liver. However, it remains unclear whether mechanical stress induces TGF-beta in HSCs. The Rho small GTP-binding protein (Rho) has recently emerged as an important regulator of actin and cytoskeleton. We examined whether TGF-beta is expressed in stretched HSCs and whether Rho is involved in stretch-induced TGF-beta synthesis. MATERIALS AND METHODS A cultured human HSC cell line, LI90, was used for this study. Hepatic stellate cells were cyclically stretched using the Flexercell(R) strain unit. Concentration of TGF-beta in the conditioned medium was estimated by a bioassay using mink lung epithelial cells transfected with a plasminogen activator inhibitor-1 promoter-luciferase construct. Transforming growth factor-beta mRNA expression of HSCs was estimated by a reverse-transcription polymerase chain reaction. Replication-defective adenoviral vectors expressing a dominant negative type of Rho was utilized to suppress its effect on HSCs. RESULTS Transforming growth factor-beta concentration of the conditioned media of stretched HSCs showed time-dependent increases as compared to nonstretched HSCs from 2 h to 24 h. Transforming growth factor-beta mRNA expression in stretched HSCs was increased compared with that in nonstretched HSCs. Transfection of dominant negative Rho inhibited the stretch-induced TGF-beta synthesis. CONCLUSIONS Mechanical stretch enhanced TGF-beta expression on mRNA and protein level in HSCs. Rho was closely related to stretch-induced TGF-beta synthesis in HSCs.
Collapse
Affiliation(s)
- R Sakata
- Kurume University School of Medicine, Asahi-machi, Kurume, and University of Occupational and Environmental Health, Kitakyushu, Japan
| | | | | | | | | |
Collapse
|
46
|
Watanabe SI, Sakasegawa KI, Nakamura Y, Kariatsumari K, Suehiro S, Shimokawa S, Sakata R. Placement of the Dumon Stent Using a Flexible Bronchofiberscope via Tracheostomy. Thorac Cardiovasc Surg 2003; 51:231-4. [PMID: 14502463 DOI: 10.1055/s-2003-42253] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
In this paper, we report on a new technique of Dumon stent placement using a flexible bronchofiberscope. This procedure was used to insert Dumon stents in two bronchial obstruction and two bronchofistula cases. The stenting technique described here can be used through either a tracheostoma or the oral cavity; it presents a very straightforward and safe procedure that does not require the use of a rigid bronchoscope.
Collapse
Affiliation(s)
- S-I Watanabe
- Second Department of Surgery, Kagoshima University Faculty of Medicine, Kagoshima, Japan.
| | | | | | | | | | | | | |
Collapse
|
47
|
Watanabe SI, Nakamura Y, Kariatsumari K, Sakasegawa KI, Mukaihara K, Sakata R. A single-stage video-assisted thoracoscopic surgery procedure for simultaneous bilateral spontaneous pneumothorax in a supine position. Thorac Cardiovasc Surg 2003; 51:103-5. [PMID: 12730822 DOI: 10.1055/s-2003-38992] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
We report on the case of a 23-year-old man with simultaneous bilateral spontaneous pneumothorax (SBSP), treated with bilateral video-assisted thoracoscopic surgery (VATS) in a supine position. SBSP is a very rare condition that can be life-threatening when therapeutic techniques fail. We performed a unique operative procedure for SBSP using one-stage bilateral VATS in a supine position. This procedure is less invasive, more effective, and safer for the treatment of SBSP.
Collapse
Affiliation(s)
- S-I Watanabe
- Second Department of Surgery, Kagoshima University Faculty of Medicine, Kagoshima, Japan.
| | | | | | | | | | | |
Collapse
|
48
|
Matsumoto K, Sakata R, Iguro Y, Toda R, Kinjo T, Matsumoto H, Yotsumoto G, Ueno T, Suehiro S. [Aortic root replacement using cryopreserved allograft for an infected aorta patient associated with mediastinitis]. Kyobu Geka 2003; 56:98-102. [PMID: 12635317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
We herein report a case of aortic root replacement using cryopreserved allograft. A 52-year-old man received aortic valve replacement using a mechanical prosthesis for aortic stenosis. He was complicated by postoperative methicillin-resistant staphylococcus aureus mediastinitis involving the ascending aorta. Surgical therapy including debridement, omental transposition, patch closure using pericardium had not achieved satisfied result. Aortic root replacement using cryopreserved allograft was mandatory for refractory aortic infection. He had an uneventful postoperative course. The cryopreserved allograft was effective for a patient with refractory aortic root infection due to postoperative mediastinitis.
Collapse
Affiliation(s)
- K Matsumoto
- Second Department of Surgery, University of Kagoshima, Faculty of Medicine, Kagoshima, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
49
|
Watanabe S, Kariatsumari K, Sakasegawa K, Imagama I, Yotsumoto G, Sakata R. Primary chylopericardium treated with video-assisted thoracoscopic surgery. Thorac Cardiovasc Surg 2002; 50:360-1. [PMID: 12457314 DOI: 10.1055/s-2002-35736] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Here, we report on a 30-year-old female with primary chylopericardium who successfully underwent thoracic duct clipping and partial pericardiectomy using video-assisted thoracoscopic surgery (VATS). Recently, a few cases of this disease have been treated utilizing VATS. This is a fully detailed description of the treatment of primary chylopericardium including a description of intraoperative findings and photographs obtained during the course of VATS.
Collapse
Affiliation(s)
- S Watanabe
- Second Department of Surgery, Kagoshima University Faculty of Medicine, Kagoshima, Japan.
| | | | | | | | | | | |
Collapse
|
50
|
Watanabe S, Kariatsumari K, Sakasegawa K, Nakamura Y, Sakata R. A new combined surgical procedure for severe descending necrotizing mediastinitis with bilateral empyema. Thorac Cardiovasc Surg 2002; 50:308-10. [PMID: 12375190 DOI: 10.1055/s-2002-34577] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
In this report, we will describe the treatment of a 38-year-old man with severe descending necrotizing mediastinitis (DNM) with bilateral empyema. DNM is a rare disease with a high mortality rate, and when accompanied by bilateral empyema, this is particularly serious and potentially fatal. To improve the prognosis of such patients, the establishment of an adequate surgical procedure for satisfactory debridement and drainage is essential. This is the first report on a new combined surgical procedure consisting of right standard posterolateral thoracotomy and left video-assisted thoracoscopic surgery (VATS) for severe DNM with bilateral empyema.
Collapse
Affiliation(s)
- S Watanabe
- Second Department of Surgery, Kagoshima University Faculty of Medicine, Kagoshima, Japan.
| | | | | | | | | |
Collapse
|