151
|
Harimoto N, Ikegami T, Nakagawara H, Yamashita YI, Yoshizumi T, Uchiyama H, Soejima Y, Ikeda T, Shirabe K, Aishima S, Oda Y, Maehara Y. Chronic Immune-Mediated Reaction Syndrome as the Cause of Late Graft Mortality in Living-Donor Liver Transplantation for Primary Biliary Cirrhosis. Transplant Proc 2014; 46:1438-43. [DOI: 10.1016/j.transproceed.2014.02.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Accepted: 02/27/2014] [Indexed: 12/22/2022]
|
152
|
Ikeda T, Iino R, Noji H. Real-time fluorescence visualization of slow tautomerization of single free-base phthalocyanines under ambient conditions. Chem Commun (Camb) 2014; 50:9443-6. [DOI: 10.1039/c4cc02574a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
153
|
Maezawa T, Yamanaka M, Hashimoto S, Amo A, Ohgaki A, Nakaoka Y, Fukuda A, Ikeda T, Inoue M, Morimoto Y. Possible selection of viable human blastocysts after vitrification by monitoring morphological changes. J Assist Reprod Genet 2014; 31:1099-104. [PMID: 24859171 DOI: 10.1007/s10815-014-0260-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Accepted: 05/13/2014] [Indexed: 10/25/2022] Open
Abstract
PURPOSE Morphological assessment of human blastocysts has been effective for selecting embryos with high potential. However, they often show repeated shrinkage and expansion toward their hatching. Here we assessed whether capturing morphological changes over time of vitrified-warmed blastocysts could lead to a better selection of viable embryos from shrunken blastocysts. METHODS The implantation rates of vitrified-warmed blastocysts that were shrunken or expanded (developing) at the time of loading for transfer were compared among 2,729 cycles that were subjected to single blastocyst transfer. Vitrified (107) and fresh blastocysts (17) were donated for the experimental study. To assess the relationship between morphology (expanded vs. shrunken) and the mitochondrial respiration of blastocysts, the oxygen consumption rate (OCR) was analyzed for 55 specimens using an uncoupler of oxidative phosphorylation. The remaining 69 blastocysts were used for recording morphological changes every 15 min for 48 h after warming. RESULTS Because there were no surplus embryos, 7 % of the vitrified-warmed blastocysts were shrunken and transferred. The shrunken embryos had sufficient implantation ability (40 %). The OCR of the shrunken embryos was significantly lower than that of their expanded counterparts. Upon exposure to the uncoupler, the OCR of some shrunken embryos increased to levels similar to the expanded specimens. Time-lapse images revealed some shrunken embryos which formed blastocoel by 5 h following warming exhibited developmental competence to the hatched stage. CONCLUSIONS Data of the present study suggest a group of shrunken blastocysts contains many viable and clinically available embryos and time-lapse observation of vitrified-warmed blastocysts is a potential method to distinguish viable embryos from shrunken blastocysts.
Collapse
|
154
|
Doe K, Nozawa K, Hiruma K, Yamada Y, Matsuki Y, Nakano S, Ogasawara M, Nakano H, Ikeda T, Ikegami T, Fujishiro M, Kawasaki M, Ikeda K, Amano H, Morimoto S, Ogawa H, Takamori K, Sekigawa I, Takasaki Y. Antibody against chromatin assembly factor-1 is a novel autoantibody specifically recognized in systemic lupus erythematosus. Lupus 2014; 23:1031-41. [PMID: 24836587 DOI: 10.1177/0961203314536245] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Autoantibodies to proliferating cell nuclear antigen (PCNA) are specifically, if rarely, present in systemic lupus erythematosus (SLE) patient sera. Even SLE patients lacking PCNA reactivity often show reaction to PCNA-binding protein. Here, immunoreactivity to chromatin assembly factor-1 (CAF-1), an essential molecule for DNA replication and a PCNA-binding protein, was compared for the sera of SLE patients, normal healthy controls (NHCs) and other disease controls, and in autoimmune sera reactive to standard autoantigens, by enzyme-linked immunosorbent assay (ELISA), indirect immunofluorescence, and immunoblotting. CAF1 and IRF1 expression in SLE and NHC peripheral mononuclear cells were compared by quantitative real-time polymerase chain reaction. Serum interferon-γ-inducing protein-10 and anti-double-stranded (ds)DNA antibody levels were measured by ELISA. Increased CAF-1 autoimmune reactivity was recognized in SLE or serum anti-dsDNA antibody-positive patients. Significantly greater central nervous system (CNS) involvement (aseptic meningitis) and serum anti-dsDNA antibody titers were present more often in anti-CAF-1 antibody-positive than antibody-negative SLE patients. IFN-γ positively regulated CAF-1 expression in vitro and was associated with anti-CAF-1 antibody production in SLE. Thus, a novel anti-CAF-1 autoantibody is frequently found in patients with SLE and is a useful biomarker for diagnosis, especially in cases with CNS involvement. Aberrant IFN-γ regulation appears to play an important role in anti-CAF-1 antibody production in SLE.
Collapse
|
155
|
Yamamoto Y, Yamashita T, Tsuno NH, Nagamatsu T, Okochi N, Hyodo H, Ikeda T, Kawabata M, Kamei Y, Nagura Y, Sone S, Fujii T, Takahashi K, Kozuma S. Safety and efficacy of preoperative autologous blood donation for high-risk pregnant women: Experience of a large university hospital in Japan. J Obstet Gynaecol Res 2014; 40:1308-16. [DOI: 10.1111/jog.12348] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2013] [Accepted: 11/06/2013] [Indexed: 11/28/2022]
|
156
|
Naono-Nakayama R, Ikeda T, Matsushima O, Sameshima H, Takamiya K, Funahashi H, Nishimori T. An amino-terminal fragment of hemokinin-1 has an inhibitory effect on pruritic processing in rats. Neuroscience 2014; 259:172-83. [DOI: 10.1016/j.neuroscience.2013.10.070] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Revised: 10/11/2013] [Accepted: 10/28/2013] [Indexed: 12/01/2022]
|
157
|
Uchiyama H, Shirabe K, Nakagawara H, Ikegami T, Toshima T, Soejima Y, Yoshizumi T, Yamashita YI, Harimoto N, Ikeda T, Maehara Y. Revisiting the safety of living liver donors by reassessing 441 donor hepatectomies: is a larger hepatectomy complication-prone? Am J Transplant 2014; 14:367-74. [PMID: 24472194 DOI: 10.1111/ajt.12559] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Revised: 09/12/2013] [Accepted: 09/13/2013] [Indexed: 01/25/2023]
Abstract
Donor safety is of paramount importance in performing living donor liver transplantation (LDLT). We retrospectively reviewed donor medical records to confirm whether larger donor hepatectomy is absolutely complication-prone. A total of 441 living donor hepatectomies were performed between October 1996 and July 2012 in our institute, which were divided into three eras (Era I, October 1996 to March 2004; Era II, April 2004 to March 2008; Era III, April 2008 to July 2012) and the incidences of postoperative complications were compared among the three types of hepatectomy-right hepatectomy (RH), left hepatectomy (LH) and left lateral segmentectomy (LLS). Although severe complications (Clavien's grade 3 or more) frequently occurred in RH in Eras I and II (15.4% and 10.7%, respectively), the incidence in Era III decreased to the comparable level observed in LH and LLS (5.4% in RH, 2.3% in LH and 5.3% in LLS). The incidence of postoperative complications did not relate to the type of hepatectomy selected in the latest era. Since most complications after hepatectomy were considered preventable, step-by-step meticulous surgical procedures are a prerequisite for further assuring donor safety irrespective of the type of hepatectomy selected.
Collapse
|
158
|
Kugimiya F, Chikuda H, Kamekura S, Ikeda T, Hoshi K, Ogasawara T, Nakamura K, Chung UI, Kawaguchi H. Involvement of cyclic guanosine monophosphate-dependent protein kinase II in chondrocyte hypertrophy during endochondral ossification. Mod Rheumatol 2014. [DOI: 10.3109/s10165-005-0436-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
159
|
Mäckel V, Meissl W, Ikeda T, Clever M, Meissl E, Kobayashi T, Kojima TM, Imamoto N, Ogiwara K, Yamazaki Y. A novel facility for 3D micro-irradiation of living cells in a controlled environment by MeV ions. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2014; 85:014302. [PMID: 24517788 DOI: 10.1063/1.4859499] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We present a novel facility for micro-irradiation of living targets with ions from a 1.7 MV tandem accelerator. We show results using 1 MeV protons and 2 MeV He(2+). In contrast to common micro-irradiation facilities, which use electromagnetic or electrostatic focusing and specially designed vacuum windows, we employ a tapered glass capillary with a thin end window, made from polystyrene with a thickness of 1-2 μm, for ion focusing and extraction. The capillary is connected to a beamline tilted vertically by 45°, which allows for easy immersion of the extracted ions into liquid environment within a standard cell culture dish. An inverted microscope is used for simultaneously observing the samples as well as the capillary tip, while a stage-top incubator provides an appropriate environment for the samples. Furthermore, our setup allows to target volumes in cells within a μm(3) resolution, while monitoring the target in real time during and after irradiation.
Collapse
|
160
|
Noguchi M, Ikeda T, Ikeda K, Suda S, Kodaira A, Ueno T, Ohmi A. Usefulness of the endotoxin activity assay as a biomarker to assess severity in ICU patients. Crit Care 2014. [PMCID: PMC4068168 DOI: 10.1186/cc13402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
161
|
Fujii T, Kuwahara S, Katayama K, Takado K, Ube T, Ikeda T. Molecular dynamics in azobenzene liquid crystal polymer films measured by time-resolved techniques. Phys Chem Chem Phys 2014; 16:10485-90. [DOI: 10.1039/c4cp00457d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|
162
|
Yasojima H, Sugie T, Masuda N, Kinoshita T, Sawada T, Yamauchi A, Kuroi K, Taguchi T, Bando H, Yamashiro H, Lee T, Shinkura N, Kato H, Ikeda T, Yoshimura K, Tada H, Ueyama H, Yokohashi Y, Toi M. Abstract P1-01-03: Interim analysis of the validation study on the clinical usefulness of the ICG fluorescence method for detecting sentinel lymph nodes in early breast cancer compared with the RI method (fICG-BR02). Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p1-01-03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Sentinel lymph node (SLN) biopsy guided by radioisotope (RI), blue dye or in combination methods is common. A high identification rate is reported for the RI-guided method. On the other hand, it has the demerits of radiation exposure, being expense, and it can only be used in a radiation-controlled area. The blue dye method, however, is safe and inexpensive, but the identification rate is lower compared with the RI method and requires training. The indocyanine green (ICG) fluorescent method involves the application of the fluorescing property. Lymph flow can be traced from outside the body with a photodynamic eye (PDE) camera simultaneously with an operation procedure. The ICG method is safe, inexpensive and requires little training, therefore its use will be widely permitted in any general hospitals. Recently, based on several retrospective clinical trials, the identification rate with the ICG fluorescent method has been reported to be equal to or greater than the RI method. The purpose of this multicenter study is to prospectively assess the diagnostic performance of SLN biopsy using the ICG fluorescence technique compared with RI.
Materials and methods: In this validation study, the patients aged from 20 to 75 years-old with operable primary invasive breast cancer (cT1c-2N0M0) have been nominated and required the written informed consent.
All candidates underwent SLN biopsy using the combined methods with RI and ICG fluorescence. The target sample size was 840 patients to evaluate the sensitivity of ICG method as a primary endpoint, and after 200 patients were enrolled we analyzed the identification rate and the SLN-positive rate of the RI and ICG methods respectively as the interim analysis planned beforehand.
Results: Two hundred eligible patients were enrolled in this study from May 2011 to February 2012. Their median age was 53.0 years (range: 27-74 years). The number of patients with cT1c was 106 and that with cT2 was 94. The identification rate of the RI and the ICG method was 97% (194/200) and 96% (192/200) respectively. Of the 194 patients that were identified with the RI method, 186 (95.9%) were also identified with the ICG method. ICG identified 6 patients that were not identified by RI. On the other hand, RI identified 8 patients that were not identified by ICG. The SLN-positive rate was 25.5% (51/200). This rate was higher than we expected. Of the 51 patients with positive metastatic lymph nodes, 23 patients (21.7%) had cT1c breast cancer and 28 (29.8%) had cT2 breast cancer. The positive rate of the first SLN was 23.5% (47/200) and tumor cells skipped to the second or further tier in four cases (2%).
Conclusions: The ICG-guided SLN biopsy procedure achieved a high identification rate almost equal to that with the RI method. Using this combination method, the identification rate was 100%. We will assess the sensitivity and the additive effect of combining the ICG fluorescence method with the RI method, etc., when all 840 patients have been enrolled (UMIN000005167).
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P1-01-03.
Collapse
|
163
|
Ochiai D, Takamura K, Nishimura G, Ikeda T, Yakubo K, Fukuiya T. Prenatal diagnosis of cervical spinal cord compression in chondrodysplasia punctata brachytelephalangic type: A case report and literature review. Congenit Anom (Kyoto) 2013; 53:160-2. [PMID: 24712475 DOI: 10.1111/cga.12003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2012] [Accepted: 10/17/2012] [Indexed: 11/27/2022]
Abstract
Chondrodysplasia punctata brachytelephalangic type is a common subset of a heterogeneous group of chondrodysplasia punctata. Most affected children generally do not have significant physical disabilities; however, a small number of patients are at risk of cervical canal stenosis with cervical cord compression leading to serious morbidity and early mortality. Very little is known about the in utero manifestation of severe complications. We report an affected child in whom the Binder phenotype was found on antenatal ultrasound and cervical spinal cord compression on fetal magnetic resonance imaging. Prenatal diagnosis of chondrodysplasia punctata brachytelephalangic type and its complications are beneficial for timely, prompt medical intervention.
Collapse
|
164
|
Tsuno NH, Nagura Y, Kawabata M, Matsuhashi M, Sone S, Ikeda T, Okochi N, Takahashi K. The current status of autologous blood transfusion in Japan – The importance of pre-deposit autologous blood donation program and the needs to achieve patient blood management. Transfus Apher Sci 2013; 49:673-80. [DOI: 10.1016/j.transci.2013.02.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Accepted: 02/14/2013] [Indexed: 10/27/2022]
|
165
|
Ochiai D, Uchino H, Ikeda T, Yakubo K, Fukuiya T. Pseudohypoparathyroidism type 1a in pregnancy. J OBSTET GYNAECOL 2013; 33:900. [DOI: 10.3109/01443615.2013.834302] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
166
|
Ishiguro M, Hashizume H, Ikeda T, Yamamoto Y, Furukawa F. Evaluation of the quality of life of lupus erythematosus patients with cutaneous lesions in Japan. Lupus 2013; 23:93-101. [DOI: 10.1177/0961203313509293] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The quality of life (QOL) of lupus erythematosus (LE) patients with skin manifestations is impaired, but little is known about Japanese patients. We assessed whether the skin symptoms in LE are associated with the QOL using the Japanese versions of the Skindex-29 and Cutaneous Lupus Erythematosus Disease Area and Severity Index (CLASI). In all, 54 LE patients with cutaneous lesions completed the Japanese version of the Skindex-29, and physicians assessed the severity of their eruptions using the CLASI before and after treatment. The QOL of the LE patients was better after the therapeutic intervention using the Skindex-29 questionnaire. We tested several factors for an independent association with the QOL. A significant risk factor for a poor QOL was a female gender in “Functioning” before treatment. In addition, a poor QOL tended to be correlated with a female gender in “Emotions” and older current age in “Symptoms” before treatment, and with a longer duration of SLE in “Functioning” after treatment. In the CLASI analysis, skin manifestation activity in the acute phase correlated with a poor emotional and functional QOL rather than a symptomatic QOL. To the best of our knowledge, this is the first report evaluating the QOL of Japanese LE patients, despite the small cohort.
Collapse
|
167
|
Sakurai K, Nakata A, Ikeda T, Otsuka Y, Kawahito J. How do employment types and job stressors relate to occupational injury? A cross-sectional investigation of employees in Japan. Public Health 2013; 127:1012-20. [DOI: 10.1016/j.puhe.2013.08.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 08/10/2013] [Accepted: 08/27/2013] [Indexed: 10/26/2022]
|
168
|
Matsuhashi M, Tsuno NH, Sone S, Mishima Y, Nagura Y, Watanabe-Okochi N, Ikeda T, Kashiwase K, Fukuda S, Iriyama T, Hyodo H, Yamashita T, Kamei Y, Arai S, Minami M, Fujii T, Kurokawa M, Tozuka M, Takahashi K, Santoso S. The role of alloantibodies against human platelet antigen-15 in multiply platelet transfused patients. Transfusion 2013; 54:1093-9. [DOI: 10.1111/trf.12455] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Revised: 08/05/2013] [Accepted: 08/07/2013] [Indexed: 11/27/2022]
|
169
|
Takahashi K, Komai K, Ishida C, Nozaki I, Ikeda T, Motozaki Y. Antiphospholipid antibodies in patients with multiple sclerosis or neuromyelitis optica in Ishikawa prefecture, Japan. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.1491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
170
|
Nozaki I, Kato-Motozaki Y, Ikeda T, Tagami A, Takahashi K, Ishida C, Komai K. Clinical characteristics in association with neurodegenerative diseases and cancer. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.2058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
171
|
Harimoto N, Shirabe K, Yamashita YI, Ikegami T, Yoshizumi T, Soejima Y, Ikeda T, Maehara Y, Nishie A, Yamanaka T. Sarcopenia as a predictor of prognosis in patients following hepatectomy for hepatocellular carcinoma. Br J Surg 2013; 100:1523-30. [PMID: 24037576 DOI: 10.1002/bjs.9258] [Citation(s) in RCA: 363] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/08/2013] [Indexed: 12/12/2022]
Abstract
BACKGROUND Sarcopenia was identified recently as a poor prognostic factor in patients with cancer. The present study investigated the effect of sarcopenia on short- and long-term outcomes following partial hepatectomy for hepatocellular carcinoma (HCC), and aimed to identify prognostic factors. METHODS Data were collected retrospectively for all consecutive patients who underwent hepatectomy for HCC with curative intent between January 2004 and December 2009. Patients were assigned to one of two groups according to the presence or absence of sarcopenia, assessed by computed tomographic measurement of muscle mass at the level of the third lumbar vertebra. Clinicopathological, surgical outcome and long-term survival data were analysed. RESULTS Sarcopenia was present in 75 (40·3 per cent) of 186 patients, and was significantly correlated with female sex, lower body mass index and liver dysfunction, as indicated by abnormal serum albumin levels and indocyanine green retention test at 15 min values. In patients with, and without sarcopenia, the 5-year overall survival rate was 71 and 83·7 per cent respectively, and the 5-year recurrence-free survival rate was 13 and 33·2 per cent respectively. Multivariable analysis revealed that reduced skeletal muscle mass was predictive of an unfavourable prognosis. CONCLUSION Sarcopenia was predictive of worse overall survival even when adjusted for other known predictors in patients with HCC after partial hepatectomy.
Collapse
|
172
|
Ikeda T, Iwanaga Y, Morooka H, Fujiki H, Miyazaki S. Chronic blockade of vasopressin type1a receptor and/or type2 receptor improves both cardiac and renal damage and dysfunction in hypertensive rats. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p3312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
173
|
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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
174
|
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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
175
|
Watanabe-Okochi N, Yoshimi A, Sato T, Ikeda T, Kumano K, Taoka K, Satoh Y, Shinohara A, Tsuruta T, Masuda A, Yokota H, Yatomi Y, Takahashi K, Kitaura J, Kitamura T, Kurokawa M. [The shortest isoform of C/EBPβ, Liver inhibitory protein (LIP), collaborates with Evi1 to induce AML in a mouse BMT model]. [RINSHO KETSUEKI] THE JAPANESE JOURNAL OF CLINICAL HEMATOLOGY 2013; 54:749-758. [PMID: 24005435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
|
176
|
Inada S, Ono T, Shibata N, Iwata M, Haraguchi R, Ashihara T, Abe A, Ikeda T, Mitsui K, Boyett M, Dobrzynski H, Nakazawa K. Simulation study of ventricular rate control therapy during atrial fibrillation using one-dimensional cable model with two conduction pathways. J Electrocardiol 2013. [DOI: 10.1016/j.jelectrocard.2013.05.080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
177
|
Ashihara T, Haraguchi R, Inada K, Nakazawa S, Ikeda T, Ozawa T, Ito M, Trayanova N, Horie M. Functional properties of complex fractionated atrial electrograms during atrial fibrillation can be explained by structural remodelling: a simulation study. J Electrocardiol 2013. [DOI: 10.1016/j.jelectrocard.2013.05.074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
178
|
Miyoshi T, Ikeda T, Yoshimatsu J, Ikeda Y, Ishibashi-Ueda H. Fetal pulmonary thrombosis. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2013; 41:708-709. [PMID: 23108734 DOI: 10.1002/uog.12332] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
|
179
|
Hoshino M, Sugito K, Kawashima H, Goto S, Kaneda H, Furuya T, Hosoda T, Masuko T, Ohashi K, Inoue M, Ikeda T, Tomita R, Koshinaga T. Prediction of contralateral inguinal hernias in children: a prospective study of 357 unilateral inguinal hernias. Hernia 2013; 18:333-7. [PMID: 23644774 PMCID: PMC4037557 DOI: 10.1007/s10029-013-1099-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2012] [Accepted: 04/26/2013] [Indexed: 11/26/2022]
Abstract
Purpose Previously, we established a pre-operative risk scoring system to predict contralateral inguinal hernia in children with unilateral inguinal hernias. The current study aimed to verify the usefulness of our pre-operative scoring system. Methods This was a prospective study of patients undergoing unilateral inguinal hernia repair from 2006 to 2009 at a single institution. Gender, age at initial operation, birth weight, initial operation side, and the pre-operative risk score were recorded. We analyzed the incidence of contralateral inguinal hernia, risk factors, and the usefulness of our pre-operative risk scoring system. The follow-up period was 36 months. We used forward multiple logistic regression analysis to predict contralateral hernia. Results Of the 372 patients who underwent unilateral hernia repair, 357 (96.0 %) were completely followed-up for 36 months, and 23 patients (6.4 %) developed a contralateral hernia. Left-sided hernia (OR = 5.5, 95 %, CI = 1.3–24.3, p = 0.023) was associated with an increased risk of contralateral hernia. The following covariates were not associated with contralateral hernia development: gender (p = 0.702), age (p = 0.215), and birth weight (p = 0.301). The pre-operative risk score (cut-off point = 4.5) of the patients with a contralateral hernia was significantly higher, compared with the patients without a contralateral hernia using the area under the receiver operating characteristic curve (p = 0.024). Conclusions Using multivariate analysis, we confirmed usefulness of our pre-operative scoring system and initial side of the inguinal hernia, together, for the prediction of contralateral inguinal hernia in children.
Collapse
|
180
|
Hirata I, Kimizu T, Ikeda T, Kimura S, Mogami Y, Yanagihara K, Mano T, Toribe Y, Suzuki Y. [A fatal case of lamotrigine associated drug-induced hypersensitivity syndrome with fulminant myocarditis]. NO TO HATTATSU = BRAIN AND DEVELOPMENT 2013; 45:243-244. [PMID: 23785844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
|
181
|
Uenami T, Kijima T, Ayata M, Hayama Y, Tsuruta N, Saito Y, Niju T, Higaki N, Ikeda T. A 46-year-old woman with atelectasis from an endobronchial tumor. Chest 2013; 143:1170-1173. [PMID: 23546493 DOI: 10.1378/chest.12-1874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
|
182
|
Matsuhashi M, Tsuno NH, Ikeda T, Mishima Y, Watanabe-Okochi N, Santoso S, Tozuka M, Takahashi K. The frequencies of SLC44A2 alleles among the Japanese population. TISSUE ANTIGENS 2013; 81:227-228. [PMID: 23510419 DOI: 10.1111/tan.12091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
|
183
|
Ikeda T, Sasaki M, Okada A, Koshiji T. Reply to Rychlik and McManus. Eur J Cardiothorac Surg 2013; 43:875-6. [DOI: 10.1093/ejcts/ezs546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
184
|
Hojo H, Ohba S, Taniguchi K, Shirai M, Yano F, Saito T, Ikeda T, Nakajima K, Komiyama Y, Nakagata N, Suzuki K, Mishina Y, Yamada M, Konno T, Takato T, Kawaguchi H, Kambara H, Chung UI. Hedgehog-Gli activators direct osteo-chondrogenic function of bone morphogenetic protein toward osteogenesis in the perichondrium. J Biol Chem 2013; 288:9924-9932. [PMID: 23423383 DOI: 10.1074/jbc.m112.409342] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Specification of progenitors into the osteoblast lineage is an essential event for skeletogenesis. During endochondral ossification, cells in the perichondrium give rise to osteoblast precursors. Hedgehog (Hh) and bone morphogenetic protein (BMP) are suggested to regulate the commitment of these cells. However, properties of perichondrial cells and regulatory mechanisms of the specification process are still poorly understood. Here, we investigated the machineries by combining a novel organ culture system and single-cell expression analysis with mouse genetics and biochemical analyses. In a metatarsal organ culture reproducing bone collar formation, activation of BMP signaling enhanced the bone collar formation cooperatively with Hh input, whereas the signaling induced ectopic chondrocyte formation in the perichondrium without Hh input. Similar phenotypes were also observed in compound mutant mice, where signaling activities of Hh and BMP were genetically manipulated. Single-cell quantitative RT-PCR analyses showed heterogeneity of perichondrial cells in terms of natural characteristics and responsiveness to Hh input. In vitro analyses revealed that Hh signaling suppressed BMP-induced chondrogenic differentiation; Gli1 inhibited the expression of Sox5, Sox6, and Sox9 (SRY box-containing gene 9) as well as transactivation by Sox9. Indeed, ectopic expression of chondrocyte maker genes were observed in the perichondrium of metatarsals in Gli1(-/-) fetuses, and the phenotype was more severe in Gli1(-/-);Gli2(-/-) newborns. These data suggest that Hh-Gli activators alter the function of BMP to specify perichondrial cells into osteoblasts; the timing of Hh input and its target populations are critical for BMP function.
Collapse
|
185
|
Hata M, Thongyen T, Bao L, Hoshino A, Otani Y, Ikeda T, Furuuchi M. Development of a high-volume air sampler for nanoparticles. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2013; 15:454-462. [PMID: 25208710 DOI: 10.1039/c2em30392b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
As a tool to evaluate the characteristics of aerosol nano-particles, a high-volume air sampler for the collection of nano-particles was developed based on the inertial filter technology. Instead of the webbed fiber geometry of the existing inertial filter, wire mesh screens alternately layered using spacing sheets with circular holes aligned to provide multi-circular nozzles were newly devised and the separation performance of the filter was investigated experimentally. The separation performance was evaluated for a single-nozzle inertial filter at different filtration velocities. A webbed stainless steel fiber mat attached on the inlet surface of the developed inertial filter was discussed as a pre-separator suppressing the bouncing of particles on meshes. The separation performance of a triple-nozzle inertial filter was also discussed to investigate the influence of scale-up on the separation performance of a multi-nozzle inertial filter. The influence of particle loading on the pressure drop and separation performance was discussed. A supplemental inlet for the nano-particle collection applied to an existing portable high-volume air sampler was devised and the consistency with other types of existing samplers was discussed based on the sampling of ambient particles. The layered-mesh inertial filter with a webbed stainless steel fiber mat as a pre-separator showed good performance in the separation of particles with a d p50 ranging from 150 to 190 nm keeping the influence of loaded particles small. The developed layered-mesh inertial filter was successfully applied to the collection of particles at a d p50∼ 190 nm that was consistent with the results from existing samplers.
Collapse
|
186
|
Kan A, Ikeda T, Fukai A, Nakagawa T, Nakamura K, Chung UI, Kawaguchi H, Tabin CJ. SOX11 contributes to the regulation of GDF5 in joint maintenance. BMC DEVELOPMENTAL BIOLOGY 2013; 13:4. [PMID: 23356643 PMCID: PMC3760452 DOI: 10.1186/1471-213x-13-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2012] [Accepted: 01/17/2013] [Indexed: 01/30/2023]
Abstract
Background Individual skeletal elements of the vertebrate limbs arise through a segmentation process introducing joints in specific locations. However, the molecular pathways controlling joint formation and subsequent joint maintenance are largely unknown. In this study, we focused on SOX11, and its contribution to the regulation of GDF5, a secreted signal necessary for proper joint formation and postnatal joint homeostasis. Results Sox11 is initially expressed broadly in the murine cartilage condensations at early stages of skeletal development, but its expression is specifically increased in the forming joint interzone as is forms. SOX11 overexpression can directly activate GDF5 expression both in vitro and in micromass cell cultures prepared from chick limb buds. Conserved SOX family binding sites are present in the 5’ UTR region of the GDF5 gene and we show SOX11 can specifically bind to one of them. While misexpression of Sox11 in developing chick limbs through RCAS virus infection does not induce Gdf5 expression in ectopic locations, it does enhance its expression. To explore the roles of Sox11 in joint homeostasis, we analyzed adult knee joints in an osteoarthritis mouse model where the medial meniscus and the medial collateral ligament were removed. We also analyzed knee joints from human subjects who underwent total knee replacement surgery. We find that SOX11 is mainly expressed in the weight-bearing areas of knee joints, and its expression is decreased in degraded cartilage during progression of knee osteoarthritis in both mice and humans. Conclusions This work implicates SOX11 as a potential regulator of GDF5 expression in joint maintenance and suggests a possible role in the pathogenesis of osteoarthritis.
Collapse
|
187
|
Yamada K, Tsunoda K, Kawai K, Ikeda T, Taguchi K, Kajita K, Morita H, Ishizuka T. Mitochondria toxicity of antihyperlipidemic agents bezafibrate and fenofibrate. Diabetol Int 2013. [DOI: 10.1007/s13340-012-0104-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
188
|
Ichigo S, Sugiyama M, Murase T, Ikeda T, Imai A. An autopsy case of acute aortic dissection during postpartum period. CLIN EXP OBSTET GYN 2013; 40:435-436. [PMID: 24283183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
BACKGROUND Aortic dissection in young women without Marfan disease is related in most instances to pregnancy. This is a potentially catastrophic occurrence. CASE An autopsy case of acute aortic dissection type B (Stanford classification), clinically undiagnosed during late puerperium period in a young woman with no discernible risk factors (e.g. family history and signs of connective tissue diseases) is presented. Autopsy with ancillary investigations revealed that knowledge of this albeit relatively rare complication of postpartum may assist the clinician in earlier diagnosis and referral of patients for surgical treatment. CONCLUSION This case is presented to raise awareness and review the literature for the critical care of postpartum patients.
Collapse
|
189
|
Nagura T, Ikeda T, Ikeda K, Ueno T, Suda S. Effects of steroid therapies to severe streptococcal pneumoniae that required mechanical ventilation. Crit Care 2013. [PMCID: PMC3642533 DOI: 10.1186/cc12076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
190
|
Mori M, Ikeda T, Itabashi H. Effect of perfluorinated surfactant as additive of background electrolyte for capillary electrophoresis of inorganic cations. ACTA CHROMATOGR 2012. [DOI: 10.1556/achrom.24.2012.4.2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
191
|
Ikeda T, Anisuzzaman ASM, Yoshiki H, Sasaki M, Koshiji T, Uwada J, Nishimune A, Itoh H, Muramatsu I. Regional quantification of muscarinic acetylcholine receptors and β-adrenoceptors in human airways. Br J Pharmacol 2012; 166:1804-14. [PMID: 22300233 DOI: 10.1111/j.1476-5381.2012.01881.x] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND AND PURPOSE Muscarinic acetylcholine receptors (mAChRs) and β-adrenoceptors in the airways and lungs are clinically important in chronic obstructive pulmonary disease (COPD) and asthma. However, the quantitative and qualitative estimation of these receptors by radioligand binding approaches in human airways has not yet been reported because of tissue limitations. EXPERIMENTAL APPROACH The regional distribution and relative proportion of mAChR and β-adrenoceptor subtypes were evaluated in human bronchus and lung parenchyma by a tissue segment binding method with [(3)H]-N-methylscopolamine ([(3)H]-NMS) for mAChRs and [(3)H]-CGP-12,177 for β-adrenoceptors. Functional responses to carbachol and isoprenaline were also analysed in the bronchus. KEY RESULTS The M(3) subtype predominantly occurred in the bronchus, but the density decreased from the segmental to subsegmental bronchus, and was absent in lung parenchyma. On the other hand, the M(1) subtype occurred in the lung only, and the M(2) subtype was distributed ubiquitously in the bronchus and lungs. β(2)-adrenoceptors were increased along the airways, and their densities in the subsegmental bronchus and lung parenchyma were approximately twofold higher than those of mAChRs in the same region. β(1)-adrenoceptors were also detected in lung parenchyma but not in the bronchus. The muscarinic contractions and adrenoceptor relaxations in both bronchial regions were mediated through M(3)-mAChRs and β(2)-adrenoceptors, respectively. CONCLUSIONS AND IMPLICATIONS From the present radioligand binding approach with intact tissue segments, we constructed a distribution map of mAChRs and β-adrenoceptors in human bronchus and lung parenchyma for the first time, providing important evidence for future pharmacotherapy and new drug development for respiratory disorders.
Collapse
|
192
|
Yano F, Hojo H, Ohba S, Fukai A, Hosaka Y, Ikeda T, Saito T, Hirata M, Chikuda H, Takato T, Kawaguchi H, Chung UI. A novel disease-modifying osteoarthritis drug candidate targeting Runx1. Ann Rheum Dis 2012; 72:748-53. [PMID: 23041841 DOI: 10.1136/annrheumdis-2012-201745] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVES To identify a new disease-modifying osteoarthritis drug (DMOAD) candidate that can effectively repair cartilage by promoting chondrogenic differentiation and halt osteoarthritis (OA) progression by suppressing aberrant hypertrophy. METHODS We screened 2500 natural and synthetic small compounds for chondrogenic agents via four steps using the Col2GFP-ATDC5 system and identified a small thienoindazole derivative compound, TD-198946, as a novel DMOAD candidate. We tested its efficacy as a DMOAD via intra-articular injections directly into the joint space in a surgically-induced mouse model of OA both at the onset (prevention model) and 4 weeks after (repair model) OA induction. The downstream molecules were screened by microarray analysis. We further investigated the mechanism of the drug action and its molecular target using in vitro and in vivo assays. RESULTS TD-198946 strongly induced chondrogenic differentiation without promoting hypertrophy in cell and metatarsal organ cultures. When administered directly into the joint space, TD-198946 successfully prevented and repaired degeneration of the articular cartilage. TD-198946 exerted its effect through the regulation of Runx1 expression, which was downregulated in both mouse and human OA cartilage compared with normal tissue. CONCLUSIONS Our data suggest that TD-198946 is a novel class of DMOAD candidate, and that targeting Runx1 will provide a promising new approach in the development of disease-modifying drugs against OA.
Collapse
|
193
|
Yamada N, Chung Y, Ohtani H, Ikeda T, Onoda N, Sawada T, Nishiguchi Y, Hasuma T, Sowa M. Establishment and characterization of a new human gallbladder carcinoma cell line (OCUG-1) producing TA-4. Int J Oncol 2012; 10:1251-5. [PMID: 21533512 DOI: 10.3892/ijo.10.6.1251] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
A new human cell line (OCUG-1) was established from peritoneal effusion of a patient with malignant gallbladder carcinoma. OCUG-1 cells proliferated mainly in clusters of cells partially floating in a monolayered sheet. The population doubling time is 47.1 h. DNA analysis showed that OCUG-1 cells were aneuploid and had two G(0)/G(1) peaks. The number of chromosomes was distributed in a broad range from 52 to 139. Subcutaneous injections of the cells induced tumor formation in all nude mice. The reconstituted tumors were poorly differentiated adenocarcinoma. High levels of SLX, CA19-9, SPan-1 and TA-4 were found in the serum of the original patient, but OCUG-1 cells produced only TA-4. We speculate that OCUG-1 may be a transitional form from adenocarcinoma to squamous cell carcinoma. Since OCUG-1 produces a high level of TA-4, it will be useful for the study of the biological nature of this carcinoma and the relationship between the expression of TA-4 and squamatization.
Collapse
|
194
|
Nakata S, Ikeda T, Nakatani H, Sakamoto M, Higashidutsumi M, Honda T, Kawayoshi A, Iwamura Y. Evaluation of an automatic fogging disinfection unit. Environ Health Prev Med 2012; 6:160-4. [PMID: 21432255 DOI: 10.1007/bf02897964] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2000] [Accepted: 04/02/2001] [Indexed: 10/22/2022] Open
Abstract
A new fogging disinfection method was evaluated as a means of disinfecting ward rooms and operating theaters. A temporary room was established where the disinfection effect of fogging was examined. Based on the results, an automatic fogging disinfection unit was developed. This unit was then used in the disinfection of operating theaters, where its safety and effectiveness were examined.To evaluate the results of disinfection, bacterial culture tests were performed on the floor, walls and other areas of the operating theater, and the number of colony forming units was used as an index of effectiveness. Benzalkonium chloride, alkyldiaminoethylglycine, sodium hypochlorite, glutaral and acidic electrolytic water were used for the operating theaters. The average disinfection effect was 90% or better for all disinfectants, except acidic electrolytic water.The newly developed automatic fogging disinfection unit enables safe and effective disinfection, and may be suitable for disinfecting ward rooms and operating theaters.
Collapse
|
195
|
Yanamoto S, Yamada S, Takahashi H, Yoshitomi I, Kawasaki G, Ikeda H, Minamizato T, Shiraishi T, Fujita S, Ikeda T, Asahina I, Umeda M. Clinicopathological risk factors for local recurrence in oral squamous cell carcinoma. Int J Oral Maxillofac Surg 2012; 41:1195-200. [DOI: 10.1016/j.ijom.2012.07.011] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2012] [Revised: 05/24/2012] [Accepted: 07/19/2012] [Indexed: 11/25/2022]
|
196
|
Tsutani Y, Yamashita Y, Misumi K, Ikeda T, Miyata Y, Okada M. Non-small-cell lung cancer prognosis using carcinoembryonic antigen levels in pleural lavage fluid. Eur J Cardiothorac Surg 2012; 42:e96-101. [DOI: 10.1093/ejcts/ezs466] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
197
|
Iinuma H, Tamura J, Omoto D, Kamo N, Ohnaka S, Mitoma Y, Miyazawa Y, Okinaga K, Imamura T, Fukushima R, Watanabe T, Ikeda T. Accurate and rapid novel genetic diagnosis for detection of sentinel lymph node metastasis in breast cancer patients. Br J Cancer 2012; 107:724-31. [PMID: 22782345 PMCID: PMC3419953 DOI: 10.1038/bjc.2012.300] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background: The transcription-reverse transcription concerted reaction (TRC) test is a novel molecular-based procedure, which can assess nodal metastasis accurately and quickly. We examined the usefulness of the TRC test with a double marker, cytokeratin 19 (CK19) and carcinoembryonic antigen (CEA) mRNA, to detect sentinel lymph nodes (SLN) metastasis in breast cancer patients. Methods: A total of 264 SLNs from 131 breast cancer patients were assigned to a training set (109 SLNs from 50 patients) and validation set (155 SLNs from 81 patients). Cytokeratin 19 and CEA mRNA were detected by TRC tests, and the sensitivity and specificity of the SLN metastasis between the TRC and histology cohorts were compared. Results: Mean copy numbers of CK19 and CEA by TRC tests were increased according to the metastatic size. In the training set, TRC test showed 100% sensitivity, specificity and concordance rates against the permanent histopathology test. In the validation set, sensitivity was 97.1%, specificity was 99.2% and the concordance rate was 99.4%. Conclusion: Our results showed that the detection of CK19 and CEA mRNA using the TRC test is, an accurate and rapid method for detection of SLN metastasis and can be applied as an intraoperative molecular diagnosis in breast cancer patients.
Collapse
|
198
|
Itoh S, Saito T, Hirata M, Ushita M, Ikeda T, Woodgett JR, Algül H, Schmid RM, Chung UI, Kawaguchi H. GSK-3α and GSK-3β proteins are involved in early stages of chondrocyte differentiation with functional redundancy through RelA protein phosphorylation. J Biol Chem 2012; 287:29227-36. [PMID: 22761446 DOI: 10.1074/jbc.m112.372086] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Here we examine the roles of two isoforms of glycogen synthase kinase-3 (GSK-3), GSK-3α and GSK-3β, in skeletal development. Both isoforms were unphosphorylated and active in chondrocyte differentiation stages during SOX9 and type II collagen (COL2A1) expression. Although knock-out of both alleles of Gsk3a (Gsk3a(-/-)) or a single allele of Gsk3b (Gsk3b(+/-)) in mice did not significantly affect skeletal development, compound knock-out (Gsk3a(-/-);Gsk3b(+/-)) caused dwarfism with impairment of chondrocyte differentiation. GSK-3α and GSK-3β induced differentiation of cultured chondrocytes with functional redundancy in a cell-autonomous fashion, independently of the Wnt/β-catenin signal. Computational predictions followed by SOX9 and COL2A1 transcriptional assays identified RelA (NF-κB p65) as a key phosphorylation target of GSK-3. Among several phosphorylation residues in RelA, Thr-254 was identified as the critical phosphorylation site for GSK-3 that modulated chondrocyte differentiation. In conclusion, redundant functions of GSK-3α and GSK-3β through phosphorylation of RelA at Thr-254 play a crucial role in early stages of chondrocyte differentiation.
Collapse
|
199
|
Ikeda T, Ikeda K, Suda S. Procalcitonin level as a marker of severe sepsis and septic shock patients who required polymyxin-B immobilized fiber with direct hemoperfusion. Crit Care 2012. [PMCID: PMC3504806 DOI: 10.1186/cc11692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
|
200
|
Ikeda T, Takahashi T, Sato A, Tanaka H, Igarashi S, Fujita N, Kuwabara T, Kanazawa M, Nishizawa M, Shimohata T. Body Temperature and Lactic Acid Level as Prognostic Factors in Hypoglycemic Coma (P07.153). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p07.153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|