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Ihara Y, Hayashi K, Kanda T, Matsui K, Kindo K, Kohama Y. Nuclear magnetic resonance measurements in dynamically controlled field pulse. Rev Sci Instrum 2021; 92:114709. [PMID: 34852526 DOI: 10.1063/5.0067821] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 10/27/2021] [Indexed: 06/13/2023]
Abstract
We present the architecture of the versatile nuclear magnetic resonance (NMR) spectrometer with software-defined radio technology and its application to the dynamically controlled pulsed magnetic fields. The pulse-field technology is the only solution to access magnetic fields greater than 50 T, but the NMR experiment in the pulsed magnetic field was difficult because of the continuously changing field strength. The dynamically controlled field pulse allows us to perform NMR experiment in a quasi-steady field condition by creating a constant magnetic field for a short time around the peak of the field pulse. We confirmed the reproducibility of the field pulses using the NMR spectroscopy as a high precision magnetometer. With the highly reproducible field strength, we succeeded in measuring the nuclear spin-lattice relaxation rate 1/T1, which had never been measured by the pulse-field NMR experiment without dynamic field control. We also implement the NMR spectrum measurement with both the frequency-sweep and field-sweep modes and discuss the appropriate choices of these modes depending on the magnetic properties of the sample to be measured. This development, with further improvement at a long-duration field pulse, will innovate the microscopic measurement in extremely high magnetic fields.
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Affiliation(s)
- Y Ihara
- Department of Physics, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - K Hayashi
- Department of Physics, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - T Kanda
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - K Matsui
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - K Kindo
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - Y Kohama
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
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Khatun H, Ihara Y, Takakura K, Wada Y, Yamanaka KI. 47 Inhibition of endoplasmic reticulum stress during invitro maturation improves the developmental competence of bovine cumulus-oocyte complexes. Reprod Fertil Dev 2020. [DOI: 10.1071/rdv32n2ab47] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Endoplasmic reticulum (ER) stress, a dysfunction in protein-folding capacity of ER, is involved in many physiological responses including embryonic development. Evidence shows that the ER stress-induced unfolded protein response signaling pathway is associated with impairment of oocyte maturation and pre-implantation embryonic development; supplementation of culture medium with tauroursodeoxycholic acid (TUDCA), an ER stress inhibitor, improved the developmental process of oocytes and embryos by attenuating ER stress. However, no reports are available on the role of TUDCA in reducing ER stress during IVM of bovine oocytes. Therefore, the aim of this study was to examine the mechanism of TUDCA on reducing ER stress in maturation of bovine cumulus-oocyte complexes (COCs) and whether inhibition of ER stress during maturation can promote subsequent embryonic development. Bovine ovaries were collected from a local slaughterhouse, and after aspiration COCs were matured with/without TUDCA (50, 100, and 200 µM) for 22h at 38.5°C in a humidified atmosphere of 5% CO2. After IVM, we examined the maturation rate, reactive oxygen species, apoptosis, protein/mRNA expression levels, and subsequent embryonic development after IVF. The data were analysed using analysis of variance followed by the Tukey-Kramer multiple comparison test. As a result, the dose-dependent experiment shows that a 100μM concentration of TUDCA significantly increased the maturation rate and decreased the percentage of apoptotic cells in COCs and reactive oxygen species levels in denuded oocytes. Subsequently, the expression of ER stress inducible protein GRP78/BIP significantly decreased in COCs treated with 100 µM TUDCA compared with the control COCs. In addition, the mRNA expression of ER stress and pro-apoptotic markers (GRP78/BIP, PERK, IER1, ATF4, XBP1, CHOP, and BAX) in COCs were significantly decreased by TUDCA (100 µM) treatment, whereas it increased anti-apoptotic BCL2 expression. Moreover, we show that TUDCA (100 µM) supplementation enhances embryonic development by significantly increasing the blastocyst formation rate (43.6±1.8% vs. 49.7±1.3%) and decreasing the number of apoptotic cells (7.7±1.1% vs. 5.03±0.6%) in blastocysts. These findings suggest that existence of ER stress during maturation alters the developmental competence of bovine COCs. Therefore, for the first time, we demonstrate that application of TUDCA during IVM plays a crucial role in reducing ER stress and improves the meiotic maturation, oocyte quality, and subsequent embryonic development invitro.
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Ihara Y, Tatakura K, Wada Y, Kawahara H, Yamanaka K. 34 Effect of polysaccharide from Flammulina velutipes on the vitrification of bovine oocytes. Reprod Fertil Dev 2020. [DOI: 10.1071/rdv32n2ab34] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The developmental competence of oocytes after cryopreservation is compromised by the physical injury due to the ice crystallisation. Recent studies have reported that polysaccharide (xylomannan) derived from the mycelium and fruit body of the basidiomycete Flammulina velutipes inhibits the ice recrystallisation in the cryopreserved Chinese hamster ovary cells. In this study, we aimed to clarify the effect of xylomannan from Flammulina velutipes on the developmental competence of bovine vitrified oocytes. Bovine ovaries were obtained from a local abattoir, and cumulus-oocyte complexes (COCs) were aspirated from follicles (2-6mm in diameter) using a 19-gauge needle attached to a syringe. The COCs were matured for 22h in tissue culture medium-199 supplemented with 5% fetal bovine serum (FBS), 0.02IUmL−1 FSH, and 10μgmL−1 gentamycin. After maturation, COCs were incubated in base solution (BS: 10% FBS-tissue culture medium-199, control group; n=149) or BS supplemented with 100μgmL−1 xylomannan (xylomannan group; n=175) for 1h before vitrification. All vitrification procedures were performed at room temperature. The COCs were equilibrated in BS with 3% ethylene glycol for 12min and then in vitrification solution (BS with 30% ethylene glycol, 1.0M sucrose) for 1min. The COCs were loaded on a Cryotop (Kitazato) and transferred into liquid nitrogen. The warming procedure was performed on a warm plate (42°C). The COCs were placed into BS supplemented with 0.5, 0.25, 0.125, and 0M sucrose for 5min each. After washing with IVF100 solution (Research Institute for the Functional Peptide), COCs were applied for IVF. The viability of putative zygotes was morphologically evaluated following IVF, and ones that survived were cultured in CR1aa supplemented with 5% FBS. The cleavage pattern was evaluated at 28h after IVF as follows: embryos with blastomeres of the same size without fragmentation were classified as normal cleavage; embryos with 2 blastomeres and several small fragments, direct cleavage from the 1-cell stage to 3 or 4 blastomeres, or 2 blastomeres of different size were classified as abnormal cleavage. The rates of cleavage and blastocyst formation were calculated on 2 and 8 days after culture, respectively. Total cell number and apoptosis of blastocysts were measured by terminal deoxynucleotidyl transferase dUTP nick end labelling assay. All data were obtained from more than four replicates. Viability and invitro development data were analysed using the chi-squared test. Total cell number and apoptosis data were analysed by a Student's t-test. Although no significant differences in viability, cleavage pattern, and cleavage rate (85.8 vs. 80.3%, 17.2 vs. 14.8%, and 35.4 vs. 36.7%, respectively) were observed, the developmental rate to blastocysts in the xylomannan group was significantly higher than that in the control group (68.6 vs. 42.2%; P<0.01). The present results suggest that co-incubation with xylomannan before vitrification is an effective method to improve the vitrification outcome in bovine oocytes.
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Ihara Y, Hirano A, Endo S, Kobayashi H, Torisu T. Gastrointestinal: A case of zonisamide-induced esophageal and small intestinal injury. J Gastroenterol Hepatol 2019; 34:1671. [PMID: 31119767 DOI: 10.1111/jgh.14685] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Accepted: 04/17/2019] [Indexed: 12/09/2022]
Affiliation(s)
- Y Ihara
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - A Hirano
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - S Endo
- Department of Gastroenterology, Fukuoka Sanno Hospital, Fukuoka, Japan
| | - H Kobayashi
- Department of Gastroenterology, Fukuoka Sanno Hospital, Fukuoka, Japan
| | - T Torisu
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Kawano Y, Sanada Y, Urahashi T, Ihara Y, Okada N, Yamada N, Hirata Y, Katano T, Taniai N, Matsuda A, Miyashita M, Yoshida H, Mizuta K. Transition of Spleen Volume Long After Pediatric Living Donor Liver Transplantation for Biliary Atresia. Transplant Proc 2018; 50:2718-2722. [PMID: 30401384 DOI: 10.1016/j.transproceed.2018.03.071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 03/02/2018] [Indexed: 01/10/2023]
Abstract
PURPOSE After undergoing the Kasai procedure for biliary atresia (BA), most patients develop severe splenomegaly that tends to be improved by liver transplantation. However, fluctuations in splenic volume long after transplantation remain to be elucidated. PATIENTS AND METHODS Seventy-one consecutive patients who had undergone pediatric living donor liver transplantation (LDLT) for BA were followed up in our outpatient clinic for 5 years. They were classified into 3 groups according to their clinical outcomes: a good course group (GC, n = 41) who were maintained on only 1 or without an immunosuppressant, a liver dysfunction group (LD, n = 18) who were maintained on 2 or 3 types of immunosuppressants, and a vascular complication group (VC, n = 11). Splenic and hepatic volumes were calculated by computed tomography in 464 examinations and the values compared before and after the treatment, especially in the VC group. RESULTS Splenic volume decreased exponentially in the GC group, with splenic volume to standard spleen volume ratio (SD) being 1.59 (0.33) 5 years after liver transplantation. Splenic volume to standard spleen volume ratios were greater in the VC and LD groups than in the GC group. Patients in the VC group with portal vein stenosis developed liver atrophy and splenomegaly, whereas those with hepatic vein stenosis developed hepatomegaly and splenomegaly. Interventional radiation therapy tended to improve the associated symptoms. CONCLUSIONS Fluctuations in splenic volume long after pediatric LDLT for BA may reflect various clinical conditions. Evaluation of both splenic and hepatic volumes can facilitate understanding clinical conditions following pediatric LDLT.
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Affiliation(s)
- Y Kawano
- Department of Surgery, Nippon Medical School Chiba Hokusou Hospital, Chiba, Japan.
| | - Y Sanada
- Department of Transplant Surgery, Jichi Medical University, Tochigi, Japan
| | - T Urahashi
- Department of Transplant Surgery, Jichi Medical University, Tochigi, Japan
| | - Y Ihara
- Department of Transplant Surgery, Jichi Medical University, Tochigi, Japan
| | - N Okada
- Department of Transplant Surgery, Jichi Medical University, Tochigi, Japan
| | - N Yamada
- Department of Transplant Surgery, Jichi Medical University, Tochigi, Japan
| | - Y Hirata
- Department of Transplant Surgery, Jichi Medical University, Tochigi, Japan
| | - T Katano
- Department of Transplant Surgery, Jichi Medical University, Tochigi, Japan
| | - N Taniai
- Department of Surgery, Nippon Medical School, Tokyo, Japan
| | - A Matsuda
- Department of Surgery, Nippon Medical School Chiba Hokusou Hospital, Chiba, Japan
| | - M Miyashita
- Department of Surgery, Nippon Medical School Chiba Hokusou Hospital, Chiba, Japan
| | - H Yoshida
- Department of Surgery, Nippon Medical School, Tokyo, Japan
| | - K Mizuta
- Department of Transplant Surgery, Jichi Medical University, Tochigi, Japan
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Okada N, Sanada Y, Urahashi T, Ihara Y, Yamada N, Hirata Y, Katano T, Otomo S, Ushijima K, Mizuta K. Endotoxin Metabolism Reflects Hepatic Functional Reserve in End-Stage Liver Disease. Transplant Proc 2018; 50:1360-1364. [PMID: 29705277 DOI: 10.1016/j.transproceed.2018.01.052] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 12/29/2017] [Accepted: 01/23/2018] [Indexed: 01/29/2023]
Abstract
BACKGROUND The hepatic clearance of endotoxin (Et) may reflect hepatic functional reserve and ischemic injury to hepatocytes. Therefore, we examined the relationships between Et activity (EA) and the metrics Pediatric End-Stage Liver Disease (PELD)/Model of End-Stage Liver Disease (MELD) score and alanine transaminase (ALT) levels in the postoperative period. METHODS We performed 8 living-donor liver transplantations (LDLTs) for biliary atresia at our center from April 2012 to December 2012. EA was measured by means of an Et activity assay (EAA) in samples collected from a vein 1 day before LDLT, from the portal vein during the intraoperative anhepatic phase, from an artery 1 hour after reperfusion, from an artery on postoperative day (POD) 1, and from an artery or vein at PODs 7 and 14. RESULTS EAs generally remained at low levels. EA at the reperfusion period was significantly lowest. The correlation coefficient for the preoperative MELD/PELD score and the EAA was 0.837, and the corresponding P value was .009; thus, there was a significant relationship between the preoperative MELD/PELD score and the EAA. The correlation coefficients for ALT at POD 1 and EA during the anhepatic phase, at 1 hour after reperfusion, and at POD 1 were 0.64, 0.43, and 0.38, respectively, and the P values for these correlations were .08, .67, and .34. Thus, we observed that ALT and EA generally tended to be somewhat directly correlated, but no significant relationships between these 2 metrics were observed. CONCLUSIONS Endotoxin metabolism reflects the hepatic functional reserve capacity of end-stage liver disease.
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Affiliation(s)
- N Okada
- Department of Transplant Surgery, Jichi Medical University, Tochigi, Japan.
| | - Y Sanada
- Department of Transplant Surgery, Jichi Medical University, Tochigi, Japan
| | - T Urahashi
- Department of Transplant Surgery, Jichi Medical University, Tochigi, Japan
| | - Y Ihara
- Department of Transplant Surgery, Jichi Medical University, Tochigi, Japan
| | - N Yamada
- Department of Transplant Surgery, Jichi Medical University, Tochigi, Japan
| | - Y Hirata
- Department of Transplant Surgery, Jichi Medical University, Tochigi, Japan
| | - T Katano
- Department of Transplant Surgery, Jichi Medical University, Tochigi, Japan
| | - S Otomo
- Department of Pharmacy, Jichi Medical University Hospital, Tochigi, Japan
| | - K Ushijima
- Department of Clinical Pharmacy, Jichi Medical University, Tochigi, Japan
| | - K Mizuta
- Department of Transplant Surgery, Jichi Medical University, Tochigi, Japan
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Hirata Y, Sanada Y, Urahashi T, Ihara Y, Yamada N, Okada N, Katano T, Otomo S, Ushijima K, Mizuta K. Antibody Drug Treatment for Steroid-Resistant Rejection After Pediatric Living Donor Liver Transplantation: A Single-Center Experience. Transplant Proc 2018; 50:60-65. [PMID: 29407332 DOI: 10.1016/j.transproceed.2017.11.008] [Citation(s) in RCA: 6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Accepted: 11/13/2017] [Indexed: 01/15/2023]
Abstract
BACKGROUND Antibody drugs have been used to treat steroid-resistant rejection (SRR) after liver transplantation. Although anti-thymocyte globulin has been used for SRR after liver transplantation in place of muromonab-CD3 since 2011 in Japan, the effectiveness of anti-thymocyte globulin after pediatric living-donor liver transplantation (LDLT) has not yet been reported. The aim of this study was to evaluate the effectiveness of antibody drug treatment for SRR after pediatric LDLT in our single center. METHODS Between May 2001 and December 2013, 220 pediatric LDLTs were performed. Initial immunosuppression after LDLT included tacrolimus and methylprednisolone therapy. Acute rejection was diagnosed by use of a liver biopsy and the administration of steroid pulse treatment, and SRR was defined as acute rejection refractory to the steroid pulse treatment. RESULTS Acute rejection and SRR occurred in 74 (33.6%) and 16 patients (7.3%), respectively. The graft survival rates of non-SRR and SRR were 92.4% and 87.5%, respectively (P = .464). The median concentration of alanine aminotransferase before and after the administration of antibody drug was 193.5 mU/mL (range, 8-508) and 78 mU/mL (range, 9-655), respectively (P = .012). The median rejection activity index before and after the administration of antibody drugs was 5 (range, 2-9) and 1 (range, 0-9), respectively (P = .004). After antibody drug treatment, 12 patients had cytomegalovirus infections, 2 patients had Epstein-Barr virus infections, 3 patients had respiratory infections, and 1 patient had encephalitis. The cause of death in 1 patient with SRR was recurrence of infant fulminant hepatic failure. CONCLUSIONS Antibody drug treatment for SRR after pediatric LDLT is safe and effective.
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Affiliation(s)
- Y Hirata
- Department of Transplant Surgery, Jichi Medical University, Shimotsuke City, Japan.
| | - Y Sanada
- Department of Transplant Surgery, Jichi Medical University, Shimotsuke City, Japan
| | - T Urahashi
- Department of Transplant Surgery, Jichi Medical University, Shimotsuke City, Japan
| | - Y Ihara
- Department of Transplant Surgery, Jichi Medical University, Shimotsuke City, Japan
| | - N Yamada
- Department of Transplant Surgery, Jichi Medical University, Shimotsuke City, Japan
| | - N Okada
- Department of Transplant Surgery, Jichi Medical University, Shimotsuke City, Japan
| | - T Katano
- Department of Transplant Surgery, Jichi Medical University, Shimotsuke City, Japan
| | - S Otomo
- Department of Pharmacy, Jichi Medical University Hospital, Shimotsuke City, Japan
| | - K Ushijima
- Department of Clinical Pharmacology, Jichi Medical University, Shimotsuke City, Japan
| | - K Mizuta
- Department of Transplant Surgery, Jichi Medical University, Shimotsuke City, Japan
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Hirata Y, Sanada Y, Urahashi T, Ihara Y, Yamada N, Okada N, Tashiro M, Katano T, Otomo S, Ushijima K, Mizuta K. Relationship Between Graft Liver Function and the Change of Graft Liver and Spleen Volumes After Technical Variant Liver Transplantation. Transplant Proc 2017; 48:1105-9. [PMID: 27320567 DOI: 10.1016/j.transproceed.2015.12.089] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 12/30/2015] [Indexed: 12/28/2022]
Abstract
BACKGROUND Although there have been a few reports describing the changes of graft liver and spleen volumes after liver transplantation (LT), little is known about the relationship between graft liver function and the changes of these volumes after technical variant liver transplantation (TVLT). We therefore performed a retrospective study to investigate the relationship between graft liver function and these volumes after TVLT. METHODS We retrospectively investigated the cases of 140 TVLT procedures that were performed in our department between July 1987 and October 2012 and in which follow-up was conducted at our department. We calculated the graft liver volume to standard liver volume (GV/SLV) ratio, the spleen volume to standard spleen volume (SV/SSV) ratio, and the spleen volume to graft liver volume (S/L) ratio by CT volumetry. We clarified the relationship between graft liver function (according to the pathological findings) and the graft liver and spleen volumes at 2, 5, and 10 years after TVLT. RESULTS In the normal liver function group, the GV/SLV, SV/SSV, and S/L ratios decreased until 6 months after TVLT and then converged at 10 years after TVLT to 0.95, 1.27, and 0.27, respectively. In the graft liver failure group, the GV/SLV, SV/SSV, and S/L ratios at 10 years after TVLT were 0.67, 5.01, and 1.55, respectively. A significant correlation was observed between the GV/SLV ratio and the presence of mild liver fibrosis at 2 and 5 years after TVLT (P = .03 and P = .04, respectively). CONCLUSIONS Post-transplant CT-volumetry is a noninvasive and effective means of evaluating graft liver status.
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Affiliation(s)
- Y Hirata
- Department of Transplant Surgery, Jichi Medical University, Shimotsuke City, Tochigi, Japan.
| | - Y Sanada
- Department of Transplant Surgery, Jichi Medical University, Shimotsuke City, Tochigi, Japan
| | - T Urahashi
- Department of Transplant Surgery, Jichi Medical University, Shimotsuke City, Tochigi, Japan
| | - Y Ihara
- Department of Transplant Surgery, Jichi Medical University, Shimotsuke City, Tochigi, Japan
| | - N Yamada
- Department of Transplant Surgery, Jichi Medical University, Shimotsuke City, Tochigi, Japan
| | - N Okada
- Department of Transplant Surgery, Jichi Medical University, Shimotsuke City, Tochigi, Japan
| | - M Tashiro
- Department of Transplant Surgery, Jichi Medical University, Shimotsuke City, Tochigi, Japan
| | - T Katano
- Department of Transplant Surgery, Jichi Medical University, Shimotsuke City, Tochigi, Japan
| | - S Otomo
- Department of Pharmacy, Jichi Medical University Hospital, Shimotsuke City, Tochigi, Japan
| | - K Ushijima
- Department of Clinical Pharmacology, Jichi Medical University, Shimotsuke City, Tochigi, Japan
| | - K Mizuta
- Department of Transplant Surgery, Jichi Medical University, Shimotsuke City, Tochigi, Japan
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Kawano Y, Mizuta K, Sanada Y, Urahashi T, Ihara Y, Okada N, Yamada N, Sasanuma H, Sakuma Y, Taniai N, Yoshida H, Kawarasaki H, Yasuda Y, Uchida E. Complementary Indicators for Diagnosis of Hepatic Vein Stenosis After Pediatric Living-donor Liver Transplantation. Transplant Proc 2017; 48:1156-61. [PMID: 27320577 DOI: 10.1016/j.transproceed.2015.12.114] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 12/30/2015] [Indexed: 01/10/2023]
Abstract
INTRODUCTION Although hepatic vein stenosis after liver transplantation is a rare complication, the complication rate of 1% to 6% is higher in pediatric living-donor liver transplantation than that in other liver transplantation cases. Diagnosis is very important because this complication can cause hepatic congestion that develops to liver cirrhosis, graft loss, and patient loss. However, this is unlikely in cases where there are no ascites or hypoalbuminemia. OBJECTIVES Eleven of 167 patients who had undergone pediatric living-donor liver transplantation were identified in the outpatient clinic at Jichi Medical University as having suffered from hepatic vein stenosis, and were enrolled in the study. METHODS We conducted a retrospective study in which we reviewed historical patient records to investigate the parameters for diagnosis and examine treatment methods and outcomes. RESULTS The 11 patients were treated with 16 episodes of balloon dilatation. Three among these received retransplantation and another 2 cases required the placement of a metallic stent at the stenosis. Histological examination revealed severe fibrosis in four of nine patients who had a liver biopsy, with mild fibrosis revealed in the other five grafts. Furthermore, hepatomegaly and splenomegaly diagnosed by computed tomography, elevated levels of hyarulonic acid, and/or a decrease in calcineurin inhibitor clearance were found to be pathognomonic at diagnosis, and tended to improve after treatment. CONCLUSIONS Diagnosis of hepatic vein stenosis after liver transplantation can be difficult, so careful observation is crucial to avoid the risk of acute liver dysfunction. Comprehensive assessment using volumetry of the liver and spleen and monitoring of hyarulonic acid levels and/or calcineurin inhibitor clearance, in addition to some form of imaging examination, is important for diagnosis and evaluation of the effectiveness of therapy.
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Affiliation(s)
- Y Kawano
- Department of Surgery, Nippon Medical School, Tokyo, Japan.
| | - K Mizuta
- Department of Transplant Surgery, Jichi Medical University, Tochigi, Japan
| | - Y Sanada
- Department of Transplant Surgery, Jichi Medical University, Tochigi, Japan
| | - T Urahashi
- Department of Transplant Surgery, Jichi Medical University, Tochigi, Japan
| | - Y Ihara
- Department of Transplant Surgery, Jichi Medical University, Tochigi, Japan
| | - N Okada
- Department of Transplant Surgery, Jichi Medical University, Tochigi, Japan
| | - N Yamada
- Department of Transplant Surgery, Jichi Medical University, Tochigi, Japan
| | - H Sasanuma
- Department of Surgery, Jichi Medical University, Tochigi, Japan
| | - Y Sakuma
- Department of Surgery, Jichi Medical University, Tochigi, Japan
| | - N Taniai
- Department of Surgery, Nippon Medical School, Tokyo, Japan
| | - H Yoshida
- Department of Surgery, Nippon Medical School, Tokyo, Japan
| | - H Kawarasaki
- Department of Transplant Surgery, Jichi Medical University, Tochigi, Japan
| | - Y Yasuda
- Department of Transplant Surgery, Jichi Medical University, Tochigi, Japan
| | - E Uchida
- Department of Surgery, Nippon Medical School, Tokyo, Japan
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Kawano Y, Mizuta K, Sanada Y, Urahashi T, Ihara Y, Okada N, Yamada N, Sasanuma H, Sakuma Y, Taniai N, Yoshida H, Kawarasaki H, Yasuda Y, Uchida E. Risk Factors of Cytomegalovirus Infection After Pediatric Liver Transplantation. Transplant Proc 2014; 46:3543-7. [DOI: 10.1016/j.transproceed.2014.09.150] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 09/15/2014] [Accepted: 09/23/2014] [Indexed: 12/22/2022]
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Miyashita A, Hatsuta H, Kikuchi M, Nakaya A, Saito Y, Tsukie T, Hara N, Ogishima S, Kitamura N, Akazawa K, Kakita A, Takahashi H, Murayama S, Ihara Y, Ikeuchi T, Kuwano R. Genes associated with the progression of neurofibrillary tangles in Alzheimer's disease. Transl Psychiatry 2014; 4:e396. [PMID: 26126179 PMCID: PMC4080317 DOI: 10.1038/tp.2014.35] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Revised: 03/27/2014] [Accepted: 04/22/2014] [Indexed: 12/21/2022] Open
Abstract
The spreading of neurofibrillary tangles (NFTs), intraneuronal aggregates of highly phosphorylated microtubule-associated protein tau, across the human brain is correlated with the cognitive severity of Alzheimer's disease (AD). To identify genes relevant to NFT expansion defined by the Braak stage, we conducted whole-genome exon array analysis with an exploratory sample set consisting of 213 human post-mortem brain tissue specimens from the entorinal, temporal and frontal cortices of 71 brain-donor subjects: Braak NFT stages 0 (N=13), I-II (N=20), III-IV (N=19) and V-VI (N=19). We identified eight genes, RELN, PTGS2, MYO5C, TRIL, DCHS2, GRB14, NPAS4 and PHYHD1, associated with the Braak stage. The expression levels of three genes, PHYHD1, MYO5C and GRB14, exhibited reproducible association on real-time quantitative PCR analysis. In another sample set, including control subjects (N=30), and in patients with late-onset AD (N=37), dementia with Lewy bodies (N=17) and Parkinson disease (N=36), the expression levels of two genes, PHYHD1 and MYO5C, were obviously associated with late-onset AD. Protein-protein interaction network analysis with a public database revealed that PHYHD1 interacts with MYO5C via POT1, and PHYHD1 directly interacts with amyloid beta-peptide 42. It is thus likely that functional failure of PHYHD1 and MYO5C could lead to AD development.
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Affiliation(s)
- A Miyashita
- Department of Molecular Genetics, Bioresource Science Branch, Center for Bioresources, Brain Research Institute, Niigata University, Niigata, Japan,Department of Molecular Genetics, Brain Research Institute, Niigata University, 1-757 Asahimachi, Niigata 951-8585, Japan. E-mails: or
| | - H Hatsuta
- Department of Neuropathology, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Tokyo, Japan
| | - M Kikuchi
- Research Association for Biotechnology, Tokyo, Japan
| | - A Nakaya
- Center for Transdisciplinary Research, Niigata University, Niigata, Japan
| | - Y Saito
- Department of Pathology, National Center Hospital of Neurology and Psychiatry, Tokyo, Japan
| | - T Tsukie
- Research Association for Biotechnology, Tokyo, Japan
| | - N Hara
- Department of Molecular Genetics, Bioresource Science Branch, Center for Bioresources, Brain Research Institute, Niigata University, Niigata, Japan
| | - S Ogishima
- Department of Health Record Informatics, Tohoku Medical Megabank Organization, Tohoku University, Miyagi, Japan
| | - N Kitamura
- Department of Medical Informatics, Niigata University, Niigata, Japan
| | - K Akazawa
- Department of Medical Informatics, Niigata University, Niigata, Japan
| | - A Kakita
- Department of Pathology, Brain Research Institute, Niigata University, Niigata, Japan
| | - H Takahashi
- Department of Pathology, Brain Research Institute, Niigata University, Niigata, Japan
| | - S Murayama
- Department of Neuropathology, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Tokyo, Japan
| | - Y Ihara
- Department of Neuropathology, Faculty of Life and Medical Sciences, Doshisha University, Kyoto, Japan
| | - T Ikeuchi
- Department of Molecular Genetics, Bioresource Science Branch, Center for Bioresources, Brain Research Institute, Niigata University, Niigata, Japan
| | - R Kuwano
- Department of Molecular Genetics, Bioresource Science Branch, Center for Bioresources, Brain Research Institute, Niigata University, Niigata, Japan,Department of Molecular Genetics, Brain Research Institute, Niigata University, 1-757 Asahimachi, Niigata 951-8585, Japan. E-mails: or
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Tuncel A, Kawaguchi J, Ihara Y, Matsusaka H, Nishi A, Nakamura T, Kuhara S, Hirakawa H, Nakamura Y, Cakir B, Nagamine A, Okita TW, Hwang SK, Satoh H. The rice endosperm ADP-glucose pyrophosphorylase large subunit is essential for optimal catalysis and allosteric regulation of the heterotetrameric enzyme. Plant Cell Physiol 2014; 55:1169-83. [PMID: 24747952 DOI: 10.1093/pcp/pcu057] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Although an alternative pathway has been suggested, the prevailing view is that starch synthesis in cereal endosperm is controlled by the activity of the cytosolic isoform of ADPglucose pyrophosphorylase (AGPase). In rice, the cytosolic AGPase isoform is encoded by the OsAGPS2b and OsAGPL2 genes, which code for the small (S2b) and large (L2) subunits of the heterotetrameric enzyme, respectively. In this study, we isolated several allelic missense and nonsense OsAGPL2 mutants by N-methyl-N-nitrosourea (MNU) treatment of fertilized egg cells and by TILLING (Targeting Induced Local Lesions in Genomes). Interestingly, seeds from three of the missense mutants (two containing T139I and A171V) were severely shriveled and had seed weight and starch content comparable with the shriveled seeds from OsAGPL2 null mutants. Results from kinetic analysis of the purified recombinant enzymes revealed that the catalytic and allosteric regulatory properties of these mutant enzymes were significantly impaired. The missense heterotetramer enzymes and the S2b homotetramer had lower specific (catalytic) activities and affinities for the activator 3-phosphoglycerate (3-PGA). The missense heterotetramer enzymes showed more sensitivity to inhibition by the inhibitor inorganic phosphate (Pi) than the wild-type AGPase, while the S2b homotetramer was profoundly tolerant to Pi inhibition. Thus, our results provide definitive evidence that starch biosynthesis during rice endosperm development is controlled predominantly by the catalytic activity of the cytoplasmic AGPase and its allosteric regulation by the effectors. Moreover, our results show that the L2 subunit is essential for both catalysis and allosteric regulatory properties of the heterotetramer enzyme.
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Affiliation(s)
- Aytug Tuncel
- Institute of Biological Chemistry, Washington State University, Pullman, WA 99164, USAThese authors contributed equally to this work
| | - Joe Kawaguchi
- Faculty of Agriculture, Kyushu University, Fukuoka, 812-8581 JapanThese authors contributed equally to this work
| | - Yasuharu Ihara
- Faculty of Agriculture, Kyushu University, Fukuoka, 812-8581 Japan
| | | | - Aiko Nishi
- Faculty of Agriculture, Kyushu University, Fukuoka, 812-8581 Japan
| | | | - Satoru Kuhara
- Department of Genetic Resources Technology, Kyushu University, Fukuoka, 812-8581 Japan
| | - Hideki Hirakawa
- Kazusa DNA Research Institute, Department of Plant Genome Research, Kisarazu, Japan
| | - Yasunori Nakamura
- Faculty of Bioresource Sciences, Akita Prefectural University, Akita City, 010-0195 Japan
| | - Bilal Cakir
- Institute of Biological Chemistry, Washington State University, Pullman, WA 99164, USA
| | - Ai Nagamine
- Institute of Biological Chemistry, Washington State University, Pullman, WA 99164, USAFaculty of Agriculture, Kyushu University, Fukuoka, 812-8581 Japan
| | - Thomas W Okita
- Institute of Biological Chemistry, Washington State University, Pullman, WA 99164, USA
| | - Seon-Kap Hwang
- Institute of Biological Chemistry, Washington State University, Pullman, WA 99164, USA
| | - Hikaru Satoh
- Faculty of Agriculture, Kyushu University, Fukuoka, 812-8581 Japan
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Classen CF, William D, Linnebacher M, Farhod A, Kedr W, Elsabe B, Fadel S, Van Gool S, De Vleeschouwer S, Koks C, Garg A, Ehrhardt M, Riva M, De Vleeschouwer S, Agostinis P, Graf N, Van Gool S, Yao TW, Yoshida Y, Zhang J, Ozawa T, James D, Nicolaides T, Kebudi R, Cakir FB, Gorgun O, Agaoglu FY, Darendeliler E, Van Gool S, De Vleeschouwer S, Al-Kofide A, Al-Shail E, Khafaga Y, Al-Hindi H, Dababo M, Haq AU, Anas M, Barria MG, Siddiqui K, Hassounah M, Ayas M, van Zanten SV, Jansen M, van Vuurden D, Huisman M, Vugts D, Hoekstra O, van Dongen G, Kaspers G, Cockle J, Ilett E, Scott K, Bruning-Richardson A, Picton S, Short S, Melcher A, Benesch M, Warmuth-Metz M, von Bueren AO, Hoffmann M, Pietsch T, Kortmann RD, Eyrich M, Graf N, Rutkowski S, Fruhwald MC, Faber J, Kramm C, Porkholm M, Valanne L, Lonnqvist T, Holm S, Lannering B, Riikonen P, Wojcik D, Sehested A, Clausen N, Harila-Saari A, Schomerus E, Thorarinsdottir HK, Lahteenmaki P, Arola M, Thomassen H, Saarinen-Pihkala UM, Kivivuori SM, Buczkowicz P, Hoeman C, Rakopoulos P, Pajovic S, Morrison A, Bouffet E, Bartels U, Becher O, Hawkins C, Gould TWA, Rahman CV, Smith SJ, Barrett DA, Shakesheff KM, Grundy RG, Rahman R, Barua N, Cronin D, Gill S, Lowisl S, Hochart A, Maurage CA, Rocourt N, Vinchon M, Kerdraon O, Escande F, Grill J, Pick VK, Leblond P, Burzynski G, Janicki T, Burzynski S, Marszalek A, Ramani N, Zaky W, Kannan G, Morani A, Sandberg D, Ketonen L, Maher O, Corrales-Medina F, Meador H, Khatua S, Brassesco M, Delsin L, Roberto G, Silva C, Ana L, Rego E, Scrideli C, Umezawa K, Tone L, Kim SJ, Kim CY, Kim IA, Han JH, Choi BS, Ahn HS, Choi HS, Haque F, Rahman R, Layfield R, Grundy R, Gandola L, Pecori E, Biassoni V, Schiavello E, Chiruzzi C, Spreafico F, Modena P, Bach F, Pignoli E, Massimino M, Drogosiewicz M, Dembowska-Baginska B, Jurkiewicz E, Filipek I, Perek-Polnik M, Swieszkowska E, Perek D, Bender S, Jones DT, Warnatz HJ, Hutter B, Zichner T, Gronych J, Korshunov A, Eils R, Korbel JO, Yaspo ML, Lichter P, Pfister SM, Yadavilli S, Becher OJ, Kambhampati M, Packer RJ, Nazarian J, Lechon FC, Fowkes L, Khabra K, Martin-Retortillo LM, Marshall LV, Vaidya S, Koh DM, Leach MO, Pearson AD, Zacharoulis S, Lechon FC, Fowkes L, Khabra K, Martin-Retortillo LM, Marshall LV, Schrey D, Barone G, Vaidya S, Koh DM, Pearson AD, Zacharoulis S, Panditharatna E, Stampar M, Siu A, Gordish-Dressman H, Devaney J, Kambhampati M, Hwang EI, Packer RJ, Nazarian J, Chung AH, Mittapalli RK, Elmquist WF, Becher OJ, Castel D, Debily MA, Philippe C, Truffaux N, Taylor K, Calmon R, Boddaert N, Le Dret L, Saulnier P, Lacroix L, Mackay A, Jones C, Puget S, Sainte-Rose C, Blauwblomme T, Varlet P, Grill J, Entz-Werle N, Maugard C, Bougeard G, Nguyen A, Chenard MP, Schneider A, Gaub MP, Tsoli M, Vanniasinghe A, Luk P, Dilda P, Haber M, Hogg P, Ziegler D, Simon S, Tsoli M, Vanniasinghe A, Monje M, Gurova K, Gudkov A, Haber M, Ziegler D, Zapotocky M, Churackova M, Malinova B, Zamecnik J, Kyncl M, Tichy M, Puchmajerova A, Stary J, Sumerauer D, Boult J, Vinci M, Taylor K, Perryman L, Box G, Jury A, Popov S, Ingram W, Monje M, Eccles S, Jones C, Robinson S, Emir S, Demir HA, Bayram C, Cetindag F, Kabacam GB, Fettah A, Boult J, Li J, Vinci M, Jury A, Popov S, Jamin Y, Cummings C, Eccles S, Bamber J, Sinkus R, Jones C, Robinson S, Nandhabalan M, Bjerke L, Vinci M, Burford A, Ingram W, Mackay A, von Bueren A, Baudis M, Clarke P, Collins I, Workman P, Jones C, Taylor K, Mackay A, Vinci M, Popov S, Ingram W, Entz-Werle N, Monje M, Olaciregui N, Mora J, Carcaboso A, Bullock A, Jones C, Vinci M, Mackay A, Burford A, Taylor K, Popov S, Ingram W, Monje M, Alonso M, Olaciregui N, de Torres C, Cruz O, Mora J, Carcaboso A, Jones C, Filipek I, Drogosiewicz M, Perek-Polnik M, Swieszkowska E, Dembowska-Baginska B, Jurkiewicz E, Perek D, Nguyen A, Pencreach E, Mackay A, Moussalieh FM, Guenot D, Namer I, Chenard MP, Jones C, Entz-Werle N, Pollack I, Jakacki R, Butterfield L, Hamilton R, Panigrahy A, Potter D, Connelly A, Dibridge S, Whiteside T, Okada H, Ahsan S, Raabe E, Haffner M, Warren K, Quezado M, Ballester L, Nazarian J, Eberhart C, Rodriguez F, Ramachandran C, Nair S, Quirrin KW, Khatib Z, Escalon E, Melnick S, Classen CF, Hofmann M, Schmid I, Simon T, Maass E, Russo A, Fleischhack G, Becker M, Hauch H, Sander A, Kramm C, Grasso C, Truffaux N, Berlow N, Liu L, Debily MA, Davis L, Huang E, Woo P, Tang Y, Ponnuswami A, Chen S, Huang Y, Hutt-Cabezas M, Warren K, Dret L, Meltzer P, Mao H, Quezado M, van Vuurden D, Abraham J, Fouladi M, Svalina MN, Wang N, Hawkins C, Raabe E, Hulleman E, Li XN, Keller C, Spellman PT, Pal R, Grill J, Monje M, Jansen MHA, Sewing ACP, Lagerweij T, Vuchts DJ, van Vuurden DG, Caretti V, Wesseling P, Kaspers GJL, Hulleman E, Cohen K, Raabe E, Pearl M, Kogiso M, Zhang L, Qi L, Lindsay H, Lin F, Berg S, Li XN, Muscal J, Amayiri N, Tabori U, Campbel B, Bakry D, Aronson M, Durno C, Gallinger S, Malkin D, Qaddumi I, Musharbash A, Swaidan M, Bouffet E, Hawkins C, Al-Hussaini M, Rakopoulos P, Shandilya S, McCully C, Murphy R, Akshintala S, Cole D, Macallister RP, Cruz R, Widemann B, Warren K, Salloum R, Smith A, Glaunert M, Ramkissoon A, Peterson S, Baker S, Chow L, Sandgren J, Pfeifer S, Popova S, Alafuzoff I, de Stahl TD, Pietschmann S, Kerber MJ, Zwiener I, Henke G, Kortmann RD, Muller K, von Bueren A, Sieow NYF, Hoe RHM, Tan AM, Chan MY, Soh SY, Hawkins C, Burrell K, Chornenkyy Y, Remke M, Golbourn B, Buczkowicz P, Barzczyk M, Taylor M, Rutka J, Dirks P, Zadeh G, Agnihotri S, Hashizume R, Ihara Y, Andor N, Chen X, Lerner R, Huang X, Tom M, Solomon D, Mueller S, Petritsch C, Zhang Z, Gupta N, Waldman T, James D, Dujua A, Co J, Hernandez F, Doromal D, Hegde M, Wakefield A, Brawley V, Grada Z, Byrd T, Chow K, Krebs S, Heslop H, Gottschalk S, Yvon E, Ahmed N, Truffaux N, Philippe C, Cornilleau G, Paulsson J, Andreiuolo F, Guerrini-Rousseau L, Puget S, Geoerger B, Vassal G, Ostman A, Grill J, Parsons DW, Lin F, Trevino LR, Gao F, Shen X, Hampton O, Lindsay H, Kosigo M, Qi L, Baxter PA, Su JM, Chintagumpala M, Dauser R, Adesina A, Plon SE, Li XN, Wheeler DA, Lau CC, Pietsch T, Gielen G, Muehlen AZ, Kwiecien R, Wolff J, Kramm C, Lulla RR, Laskowski J, Goldman S, Gopalakrishnan V, Fangusaro J, Mackay A, Taylor K, Vinci M, Jones C, Kieran M, Fontebasso A, Papillon-Cavanagh S, Schwartzentruber J, Nikbakht H, Gerges N, Fiset PO, Bechet D, Faury D, De Jay N, Ramkissoon L, Corcoran A, Jones D, Sturm D, Johann P, Tomita T, Goldman S, Nagib M, Bendel A, Goumnerova L, Bowers DC, Leonard JR, Rubin JB, Alden T, DiPatri A, Browd S, Leary S, Jallo G, Cohen K, Prados MD, Banerjee A, Carret AS, Ellezam B, Crevier L, Klekner A, Bognar L, Hauser P, Garami M, Myseros J, Dong Z, Siegel PM, Gump W, Ayyanar K, Ragheb J, Khatib Z, Krieger M, Kiehna E, Robison N, Harter D, Gardner S, Handler M, Foreman N, Brahma B, MacDonald T, Malkin H, Chi S, Manley P, Bandopadhayay P, Greenspan L, Ligon A, Albrecht S, Pfister SM, Ligon KL, Majewski J, Gupta N, Jabado N, Hoeman C, Cordero F, Halvorson K, Hawkins C, Becher O, Taylor I, Hutt M, Weingart M, Price A, Nazarian J, Eberhart C, Raabe E, Kantar M, Onen S, Kamer S, Turhan T, Kitis O, Ertan Y, Cetingul N, Anacak Y, Akalin T, Ersahin Y, Mason G, Nazarian J, Ho C, Devaney J, Stampar M, Kambhampati M, Crozier F, Vezina G, Packer R, Hwang E, Gilheeney S, Millard N, DeBraganca K, Khakoo Y, Kramer K, Wolden S, Donzelli M, Fischer C, Petriccione M, Dunkel I, Afzal S, Carret AS, Fleming A, Larouche V, Zelcer S, Johnston DL, Kostova M, Mpofu C, Decarie JC, Strother D, Lafay-Cousin L, Eisenstat D, Fryer C, Hukin J, Bartels U, Bouffet E, Hsu M, Lasky J, Moore T, Liau L, Davidson T, Prins R, Fouladi M, Bartels U, Warren K, Hassal T, Baugh J, Kirkendall J, Doughman R, Leach J, Jones B, Miles L, Hawkins C, Bouffet E, Hargrave D, Grill J, Jones C, Jacques T, Savage S, Goldman S, Leary S, Packer R, Saunders D, Wesseling P, Varlet P, van Vuurden D, Wallace R, Flutter B, Morgenestern D, Hargrave D, Blanco E, Howe K, Lowdell M, Samuel E, Michalski A, Anderson J, Arakawa Y, Umeda K, Watanabe KI, Mizowaki T, Hiraoka M, Hiramatsu H, Adachi S, Kunieda T, Takagi Y, Miyamoto S, Venneti S, Santi M, Felicella MM, Sullivan LM, Dolgalev I, Martinez D, Perry A, Lewis PW, Allis DC, Thompson CB, Judkins AR. HIGH GRADE GLIOMAS AND DIPG. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Yamashita M, Yokoyama K, Takei Y, Furuya N, Nakamichi Y, Ihara Y, Takahashi K, Groher ME. Acoustic characteristics of voluntary expiratory sounds after swallow for detecting dysphagia. J Oral Rehabil 2014; 41:667-74. [DOI: 10.1111/joor.12184] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/15/2014] [Indexed: 11/28/2022]
Affiliation(s)
- M. Yamashita
- Division of Oral Rehabilitation Medicine; Department of Special Needs Dentistry; Showa University School of Dentistry; Tokyo Japan
| | - K. Yokoyama
- Division of Oral Rehabilitation Medicine; Department of Special Needs Dentistry; Showa University School of Dentistry; Tokyo Japan
| | - Y. Takei
- Division of Oral Rehabilitation Medicine; Department of Special Needs Dentistry; Showa University School of Dentistry; Tokyo Japan
| | - N. Furuya
- Division of Oral Rehabilitation Medicine; Department of Special Needs Dentistry; Showa University School of Dentistry; Tokyo Japan
| | - Y. Nakamichi
- Division of Oral Rehabilitation Medicine; Department of Special Needs Dentistry; Showa University School of Dentistry; Tokyo Japan
| | - Y. Ihara
- Division of Oral Rehabilitation Medicine; Department of Special Needs Dentistry; Showa University School of Dentistry; Tokyo Japan
| | - K. Takahashi
- Division of Oral Rehabilitation Medicine; Department of Special Needs Dentistry; Showa University School of Dentistry; Tokyo Japan
| | - M. E. Groher
- Truesdail Center for Communicative Disorders; University of Redlands; Redlands CA USA
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Wakiya T, Sanada Y, Urahashi T, Ihara Y, Yamada N, Okada N, Toyoki Y, Hakamada K, Mizuta K. Iron overload after pediatric liver transplantation: a case report. Transplant Proc 2014; 46:973-6. [PMID: 24767394 DOI: 10.1016/j.transproceed.2013.09.041] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Accepted: 09/20/2013] [Indexed: 10/25/2022]
Abstract
Iron is an essential nutrient for living cells; however, an excessive accumulation of iron leads to organ damage and directly affects systemic immunity. Iron overload is clinically classified as hereditary or secondary. Most of secondary iron overload is caused by frequent blood transfusions because there is no active mechanism to excrete iron from the body. As recommended in various guidelines, chelation therapy is effective for reducing iron burden and improving organ function. There have been few reports on iron overload through blood transfusion during the perioperative period of liver transplantation. This report presents a case of iron overload due to repeated transfusions after pediatric liver transplantation managed by chelation therapy. The patient, an 11-month-old female with biliary atresia, underwent living donor liver transplantation. She revealed refractory anemia and required frequent blood transfusion. Both serum ferritin and transferrin saturation tended to increase after repeated transfusions, leading to secondary iron overload. Iron chelation therapy was started to prevent progression to organ failure and infection due to iron overload, and yielded a favorable outcome. It is crucial to consider the possibility of secondary iron overload and to achieve early detection and treatment to avoid progression to irreversible organ damage.
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Affiliation(s)
- T Wakiya
- Department of Gastroenterological Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan; Department of Transplant Surgery, Jichi Medical University, Shimotsuke, Tochigi, Japan.
| | - Y Sanada
- Department of Transplant Surgery, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - T Urahashi
- Department of Transplant Surgery, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Y Ihara
- Department of Transplant Surgery, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - N Yamada
- Department of Transplant Surgery, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - N Okada
- Department of Transplant Surgery, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Y Toyoki
- Department of Gastroenterological Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan
| | - K Hakamada
- Department of Gastroenterological Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan
| | - K Mizuta
- Department of Transplant Surgery, Jichi Medical University, Shimotsuke, Tochigi, Japan
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Cheng L, Huang Z, Zhou W, Wu Q, Rich J, Bao S, Baxter P, Mao H, Zhao X, Liu Z, Huang Y, Voicu H, Gurusiddappa S, Su JM, Perlaky L, Dauser R, Leung HCE, Muraszko KM, Heth JA, Fan X, Lau CC, Man TK, Chintagumpala M, Li XN, Clark P, Zorniak M, Cho Y, Zhang X, Walden D, Shusta E, Kuo J, Sengupta S, Goel-Bhattacharya S, Kulkarni S, Cochran B, Cusulin C, Luchman A, Weiss S, Wu M, Fernandez N, Agnihotri S, Diaz R, Rutka J, Bredel M, Karamchandani J, Das S, Day B, Stringer B, Al-Ejeh F, Ting M, Wilson J, Ensbey K, Jamieson P, Bruce Z, Lim YC, Offenhauser C, Charmsaz S, Cooper L, Ellacott J, Harding A, Lickliter J, Inglis P, Reynolds B, Walker D, Lackmann M, Boyd A, Berezovsky A, Poisson L, Hasselbach L, Irtenkauf S, Transou A, Mikkelsen T, deCarvalho AC, Emlet D, Del Vecchio C, Gupta P, Li G, Skirboll S, Wong A, Figueroa J, Shahar T, Hossain A, Lang F, Fouse S, Nakamura J, James CD, Chang S, Costello J, Frerich JM, Rahimpour S, Zhuang Z, Heiss JD, Golebiewska A, Stieber D, Evers L, Lenkiewicz E, Brons NHC, Nicot N, Oudin A, Bougnaud S, Hertel F, Bjerkvig R, Barrett M, Vallar L, Niclou SP, Hao X, Rahn J, Ujack E, Lun X, Cairncross G, Weiss S, Senger D, Robbins S, Harness J, Lerner R, Ihara Y, Santos R, Torre JDL, Lu A, Ozawa T, Nicolaides T, James D, Petritsch C, Higgins D, Schroeder M, Ball B, Milligan B, Meyer F, Sarkaria J, Henley J, Flavahan W, Wu Q, Hitomi M, Rahim N, Kim Y, Sloan A, Weil R, Nakano I, Sarkaria J, Stringer B, Li M, Lathia J, Rich J, Hjelmeland A, Kaluzova M, Platt S, Kent M, Bouras A, Machaidze R, Hadjipanayis C, Kang SG, Kim SH, Huh YM, Kim EH, Park EK, Chang JH, Kim SH, Hong YK, Kim DS, Lee SJ, Kim EH, Kang SG, Hitomi M, Deleyrolle L, Sinyuk M, Li M, Goan W, Otvos B, Rohaus M, Oli M, Vedam-Mai V, Schonberg D, Wu Q, Rich J, Reynolds B, Lathia J, Lee ST, Chu K, Kim SH, Lee SK, Kim M, Roh JK, Lerner R, Griveau A, Ihara Y, Reichholf B, McMahon M, Rowitch D, James D, Petritsch C, Nitta R, Mitra S, Agarwal M, Bui T, Li G, Lin J, Adamson C, Martinez-Quintanilla J, Choi SH, Bhere D, Heidari P, He D, Mahmood U, Shah K, Mitra S, Gholamin S, Feroze A, Achrol A, Kahn S, Weissman I, Cheshier S, Nakano I, Sulman EP, Wang Q, Mostovenko E, Liu H, Lichti CF, Shavkunov A, Kroes RA, Moskal JR, Conrad CA, Lang FF, Emmett MR, Nilsson CL, Osuka S, Sampetrean O, Shimizu T, Saga I, Onishi N, Sugihara E, Okubo J, Fujita S, Takano S, Matsumura A, Saya H, Saito N, Fu J, Wang S, Yung WKA, Koul D, Schmid RS, Irvin DM, Vitucci M, Bash RE, Werneke AM, Miller CR, Shinojima N, Hossain A, Takezaki T, Fueyo J, Gumin J, Gao F, Nwajei F, Marini FC, Andreeff M, Kuratsu JI, Lang FF, Singh S, Burrell K, Koch E, Agnihotri S, Jalali S, Vartanian A, Gumin J, Sulman E, Lang F, Wouters B, Zadeh G, Spelat R, Singer E, Matlaf L, McAllister S, Soroceanu L, Spiegl-Kreinecker S, Loetsch D, Laaber M, Schrangl C, Wohrer A, Hainfellner J, Marosi C, Pichler J, Weis S, Wurm G, Widhalm G, Knosp E, Berger W, Takezaki T, Shinojima N, Kuratsu JI, Lang F, Tam Q, Tanaka S, Nakada M, Yamada D, Nakano I, Todo T, Hayashi Y, Hamada JI, Hirao A, Tilghman J, Ying M, Laterra J, Venere M, Chang C, Wu Q, Summers M, Rosenfeld S, Rich J, Tanaka S, Luk S, Chang C, Iafrate J, Cahill D, Martuza R, Rabkin S, Chi A, Wakimoto H, Wirsching HG, Krishnan S, Frei K, Krayenbuhl N, Reifenberger G, Weller M, Tabatabai G, Man J, Shoemake J, Venere M, Rich J, Yu J. STEM CELLS. Neuro Oncol 2013. [DOI: 10.1093/neuonc/not190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Brognaro E, Chang S, Cha J, Choi K, Choi C, DePetro J, Binding C, Blough M, Kelly J, Lawn S, Chan J, Weiss S, Cairncross G, Eisenbeis A, Goldbrunner R, Timmer M, Gabrusiewicz K, Cortes-Santiago N, Fan X, Hossain MB, Kaminska B, Heimberger A, Rao G, Yung WKA, Marini F, Fueyo J, Gomez-Manzano C, Halle B, Marcusson E, Aaberg-Jessen C, Jensen SS, Meyer M, Schulz MK, Andersen C, Bjarne, Kristensen W, Hashizume R, Ihara Y, Ozawa T, Parsa A, Clarke J, Butowski N, Prados M, Perry A, McDermott M, James D, Jensen R, Gillespie D, Martens T, Zamykal M, Westphal M, Lamszus K, Monsalves E, Jalali S, Tateno T, Ezzat S, Zadeh G, Nedergaard MK, Kristoffersen K, Poulsen HS, Stockhausen MT, Lassen U, Kjaer A, Ohka F, Natsume A, Zong H, Liu C, Hatanaka A, Katsushima K, Shinjo K, Wakabayashi T, Kondo Y, Picotte K, Li L, Westerhuis B, Zhao H, Plotkin S, James M, Kalamarides M, Zhao WN, Kim J, Stemmer-Rachamimov A, Haggarty S, Gusella J, Ramesh V, Nunes F, Rao G, Doucette T, Yang Y, Fuller G, Rao A, Schmidt NO, Humke N, Meissner H, Mueller FJ, Westphal M, Schnell O, Jaehnert I, Albrecht V, Fu P, Tonn JC, Schichor C, Shackleford G, Swanson K, Shi XH, D'Apuzzo M, Gonzalez-Gomez I, Sposto R, Seeger R, Erdreich-Epstein A, Moats R, Sirianni RW, Heffernan JM, Overstreet DJ, Sleire L, Skeie BS, Netland IA, Heggdal J, Pedersen PH, Enger PO, Stiles C, Sun Y, Mehta S, Taylor C, Alberta J, Sundstrom T, Wendelbo I, Daphu I, Hodneland E, Lundervold A, Immervoll H, Skaftnesmo KO, Babic M, Jendelova P, Sykova E, Lund-Johansen M, Bjerkvig R, Thorsen F, Synowitz M, Ku MC, Wolf SA, Respondek D, Matyash V, Pohlmann A, Waiczies S, Waiczies H, Niendorf T, Glass R, Kettenmann H, Thompson N, Elder D, Hopkins K, Iyer V, Cohen N, Tavare J, Thorsen F, Fite B, Mahakian LM, Seo JW, Qin S, Harrison V, Sundstrom T, Harter PN, Johnson S, Ingham E, Caskey C, Meade T, Skaftnesmo KO, Ferrara KW, Tschida BR, Lowy AR, Marek CA, Ringstrom T, Beadnell TJ, Wiesner SM, Largaespada DA, Wenger C, Miranda PC, Mekonnen A, Salvador R, Basser P, Yoon J, Shin H, Choi K, Choi C. TUMOR MODELS (IN VIVO/IN VITRO). Neuro Oncol 2013. [DOI: 10.1093/neuonc/not193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Aaberg-Jessen C, Fogh L, Halle B, Jensen V, Brunner N, Kristensen BW, Abe T, Momii Y, Watanabe J, Morisaki I, Natsume A, Wakabayashi T, Fujiki M, Aldaz B, Fabius AWM, Silber J, Harinath G, Chan TA, Huse JT, Anai S, Hide T, Nakamura H, Makino K, Yano S, Kuratsu JI, Balyasnikova IV, Prasol MS, Kanoija DK, Aboody KS, Lesniak MS, Barone T, Burkhart C, Purmal A, Gudkov A, Gurova K, Plunkett R, Barton K, Misuraca K, Cordero F, Dobrikova E, Min H, Gromeier M, Kirsch D, Becher O, Pont LB, Kloezeman J, van den Bent M, Kanaar R, Kremer A, Swagemakers S, French P, Dirven C, Lamfers M, Leenstra S, Pont LB, Balvers R, Kloezeman J, Kleijn A, Lawler S, Leenstra S, Dirven C, Lamfers M, Gong X, Andres A, Hanson J, Delashaw J, Bota D, Chen CC, Yao NW, Chuang WJ, Chang C, Chen PY, Huang CY, Wei KC, Cheng Y, Dai Q, Morshed R, Han Y, Auffinger B, Wainwright D, Zhang L, Tobias A, Rincon E, Thaci B, Ahmed A, He C, Lesniak M, Choi YA, Pandya H, Gibo DM, Fokt I, Priebe W, Debinski W, Chornenkyy Y, Agnihotri S, Buczkowicz P, Rakopoulos P, Morrison A, Barszczyk M, Becher O, Hawkins C, Chung S, Decollogne S, Luk P, Shen H, Ha W, Day B, Stringer B, Hogg P, Dilda P, McDonald K, Moore S, Hayden-Gephart M, Bergen J, Su Y, Rayburn H, Edwards M, Scott M, Cochran J, Das A, Varma AK, Wallace GC, Dixon-Mah YN, Vandergrift WA, Giglio P, Ray SK, Patel SJ, Banik NL, Dasgupta T, Olow A, Yang X, Mueller S, Prados M, James CD, Haas-Kogan D, Dave ND, Desai PB, Gudelsky GA, Chow LML, LaSance K, Qi X, Driscoll J, Driscoll J, Ebsworth K, Walters MJ, Ertl LS, Wang Y, Berahovic RD, McMahon J, Powers JP, Jaen JC, Schall TJ, Eroglu Z, Portnow J, Sacramento A, Garcia E, Raubitschek A, Synold T, Esaki S, Rabkin S, Martuza R, Wakimoto H, Ferluga S, Tome CL, Debinski W, Forde HE, Netland IA, Sleire L, Skeie B, Enger PO, Goplen D, Giladi M, Tichon A, Schneiderman R, Porat Y, Munster M, Dishon M, Weinberg U, Kirson E, Wasserman Y, Palti Y, Giladi M, Porat Y, Schneiderman R, Munster M, Weinberg U, Kirson E, Palti Y, Gramatzki D, Staudinger M, Frei K, Peipp M, Weller M, Grasso C, Liu L, Becher O, Berlow N, Davis L, Fouladi M, Gajjar A, Hawkins C, Huang E, Hulleman E, Hutt M, Keller C, Li XN, Meltzer P, Quezado M, Quist M, Raabe E, Spellman P, Truffaux N, van Vurden D, Wang N, Warren K, Pal R, Grill J, Monje M, Green AL, Ramkissoon S, McCauley D, Jones K, Perry JA, Ramkissoon L, Maire C, Shacham S, Ligon KL, Kung AL, Zielinska-Chomej K, Grozman V, Tu J, Viktorsson K, Lewensohn R, Gupta S, Mladek A, Bakken K, Carlson B, Boakye-Agyeman F, Kizilbash S, Schroeder M, Reid J, Sarkaria J, Hadaczek P, Ozawa T, Soroceanu L, Yoshida Y, Matlaf L, Singer E, Fiallos E, James CD, Cobbs CS, Hashizume R, Tom M, Ihara Y, Ozawa T, Santos R, Torre JDL, Lepe E, Waldman T, Prados M, James D, Hashizume R, Ihara Y, Huang X, Yu-Jen L, Tom M, Mueller S, Gupta N, Solomon D, Waldman T, Zhang Z, James D, Hayashi T, Adachi K, Nagahisa S, Hasegawa M, Hirose Y, Gephart MH, Moore S, Bergen J, Su YS, Rayburn H, Scott M, Cochran J, Hingtgen S, Kasmieh R, Nesterenko I, Figueiredo JL, Dash R, Sarkar D, Fisher P, Shah K, Horne E, Diaz P, Stella N, Huang C, Yang H, Wei K, Huang T, Hlavaty J, Ostertag D, Espinoza FL, Martin B, Petznek H, Rodriguez-Aguirre M, Ibanez C, Kasahara N, Gunzburg W, Gruber H, Pertschuk D, Jolly D, Robbins J, Hurwitz B, Yoo JY, Bolyard C, Yu JG, Wojton J, Zhang J, Bailey Z, Eaves D, Cripe T, Old M, Kaur B, Serwer L, Yoshida Y, Le Moan N, Santos R, Ng S, Butowski N, Krtolica A, Ozawa T, Cary SPL, James CD, Johns T, Greenall S, Donoghue J, Adams T, Karpel-Massler G, Westhoff MA, Kast RE, Dwucet A, Wirtz CR, Debatin KM, Halatsch ME, Karpel-Massler G, Kast RE, Westhoff MA, Merkur N, Dwucet A, Wirtz CR, Debatin KM, Halatsch ME, Kievit F, Stephen Z, Wang K, Kolstoe D, Silber J, Ellenbogen R, Zhang M, Kitange G, Schroeder M, Sarkaria J, Kleijn A, Haefner E, Leenstra S, Dirven C, Lamfers M, Knubel K, Pernu BM, Sufit A, Pierce AM, Nelson SK, Keating AK, Jensen SS, Kristensen BW, Lachowicz J, Demeule M, Regina A, Tripathy S, Curry JC, Nguyen T, Castaigne JP, Le Moan N, Serwer L, Yoshida Y, Ng S, Davis T, Santos R, Davis A, Tanaka K, Keating T, Getz J, Kapp GT, Romero JM, Ozawa T, James CD, Krtolica A, Cary SPL, Lee S, Ramisetti S, Slagle-Webb B, Sharma A, Connor J, Lee WS, Maire C, Kluk M, Aster JC, Ligon K, Sun S, Lee D, Ho ASW, Pu JKS, Zhang ZQ, Lee NP, Day PJR, Leung GKK, Liu Z, Liu X, Madhankumar AB, Miller P, Webb B, Connor JR, Yang QX, Lobo M, Green S, Schabel M, Gillespie Y, Woltjer R, Pike M, Lu YJ, Torre JDL, Waldman T, Prados M, Ozawa T, James D, Luchman HA, Stechishin O, Nguyen S, Cairncross JG, Weiss S, Lun X, Wells JC, Hao X, Zhang J, Grinshtein N, Kaplan D, Luchman A, Weiss S, Cairncross JG, Senger D, Robbins S, Madhankumar A, Slagle-Webb B, Rizk E, Payne R, Park A, Pang M, Harbaugh K, Connor J, Wilisch-Neumann A, Pachow D, Kirches E, Mawrin C, McDonell S, Liang J, Piao Y, Nguyen N, Yung A, Verhaak R, Sulman E, Stephan C, Lang F, de Groot J, Mizobuchi Y, Okazaki T, Kageji T, Kuwayama K, Kitazato KT, Mure H, Hara K, Morigaki R, Matsuzaki K, Nakajima K, Nagahiro S, Kumala S, Heravi M, Devic S, Muanza T, Nelson SK, Knubel KH, Pernu BM, Pierce AM, Keating AK, Neuwelt A, Nguyen T, Wu YJ, Donson A, Vibhakar R, Venkatamaran S, Amani V, Neuwelt E, Rapkin L, Foreman N, Ibrahim F, New P, Cui K, Zhao H, Chow D, Stephen W, Nozue-Okada K, Nagane M, McDonald KL, Ogawa D, Chiocca E, Godlewski J, Ozawa T, Yoshida Y, Santos R, James D, Pang M, Liu X, Madhankumar AB, Slagle-Webb B, Patel A, Miller P, Connor J, Pasupuleti N, Gorin F, Valenzuela A, Leon L, Carraway K, Ramachandran C, Nair S, Quirrin KW, Khatib Z, Escalon E, Melnick S, Phillips A, Boghaert E, Vaidya K, Ansell P, Shalinsky D, Zhang Y, Voorbach M, Mudd S, Holen K, Humerickhouse R, Reilly E, Huang T, Parab S, Diago O, Espinoza FL, Martin B, Ibanez C, Kasahara N, Gruber H, Pertschuk D, Jolly D, Robbins J, Ryken T, Agarwal S, Al-Keilani M, Alqudah M, Sibenaller Z, Assemolt M, Sai K, Li WY, Li WP, Chen ZP, Saito R, Sonoda Y, Kanamori M, Yamashita Y, Kumabe T, Tominaga T, Sarkar G, Curran G, Jenkins R, Scharnweber R, Kato Y, Lin J, Everson R, Soto H, Kruse C, Kasahara N, Liau L, Prins R, Semenkow S, Chu Q, Eberhart C, Sengupta R, Marassa J, Piwnica-Worms D, Rubin J, Serwer L, Kapp GT, Le Moan N, Yoshida Y, Romero JM, Ng S, Davis A, Ozawa T, Krtolica A, James CD, Cary SPL, Shai R, Pismenyuk T, Moshe I, Fisher T, Freedman S, Simon A, Amariglio N, Rechavi G, Toren A, Yalon M, Shen H, Decollogne S, Dilda P, Chung S, Luk P, Hogg P, McDonald K, Shimazu Y, Kurozumi K, Ichikawa T, Fujii K, Onishi M, Ishida J, Oka T, Watanabe M, Nasu Y, Kumon H, Date I, Sirianni RW, McCall RL, Spoor J, van der Kaaij M, Kloezeman J, Geurtjens M, Dirven C, Lamfers M, Leenstra S, Stephen Z, Veiseh O, Kievit F, Fang C, Leung M, Ellenbogen R, Silber J, Zhang M, Strohbehn G, Atsina KK, Patel T, Piepmeier J, Zhou J, Saltzman WM, Takahashi M, Valdes G, Inagaki A, Kamijima S, Hiraoka K, Micewicz E, McBride WH, Iwamoto KS, Gruber HE, Robbins JM, Jolly DJ, Kasahara N, Warren K, McCully C, Bacher J, Thomas T, Murphy R, Steffen-Smith E, McAllister R, Pastakia D, Widemann B, Wei K, Yang H, Huang C, Chen P, Hua M, Liu H, Woolf EC, Abdelwahab MG, Fenton KE, Liu Q, Turner G, Preul MC, Scheck AC, Yoshida Y, Ozawa T, Butowski N, Shen W, Brown D, Pedersen H, James D, Zhang J, Hariono S, Yao TW, Sidhu A, Hashizume R, James CD, Weiss WA, Nicolaides TP, Olusanya T. EXPERIMENTAL THERAPEUTICS AND PHARMACOLOGY. Neuro Oncol 2013; 15:iii37-iii61. [PMCID: PMC3823891 DOI: 10.1093/neuonc/not176] [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] [Subscribe] [Scholar Register] [Indexed: 09/21/2023] Open
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Sugiura Y, Ihara Y, Ishii A, Ugawa Y, Hirose S. Lack of potassium current in novel mutations of KCNQ2 and KCNQ3 identified in benign familial neonatal epilepsy (BFNE). J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Wakiya T, Sanada Y, Mizuta K, Urahashi T, Ihara Y, Yamada N, Okada N, Egami S, Nakata M, Hakamada K, Yasuda Y. A comparison of open surgery and endovascular intervention for hepatic artery complications after pediatric liver transplantation. Transplant Proc 2013; 45:323-9. [PMID: 23375320 DOI: 10.1016/j.transproceed.2012.08.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2012] [Revised: 07/25/2012] [Accepted: 08/08/2012] [Indexed: 12/13/2022]
Abstract
There are currently 2 major therapeutic options for the treatment of hepatic artery complications: endovascular intervention and open surgery. We herein report a retrospective analysis of 14 pediatric patients with hepatic artery complications after pediatric living donor liver transplantation (LDLT) at our institution. We divided them into an open surgery group and an endovascular intervention group based on their primary treatment, and compared the results and outcomes. We then evaluated which procedure is more effective and less invasive. In the open surgery group, recurrent stenosis or spasm of the hepatic artery occurred in 3 of the 8 patients (37.5%). In the endovascular intervention group, 5 of the 6 patients were technically successfully treated by only endovascular treatment. Of the 5 successfully treated patients, 3 developed recurrent stenosis (60%). There were significant differences in the mean length of the operation for the first treatment of hepatic artery complications (open surgery, 428 minutes vs endovascular intervention, 160 minutes; P = .01) and in the mean value of the posttreatment aspartate aminotransferase (AST)/alanine aminotransferase (ALT) (open surgery > endovascular intervention; P = .04/.05). Although endovascular intervention needs to be examined in further studies to reduce the rate of relapse, it is a less invasive method for the patient and graft than open surgery.
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Affiliation(s)
- T Wakiya
- Department of Transplant Surgery, Jichi Medical University, Shimotsuke, Tochigi, Japan.
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Bie L, Ju Y, Jin Z, Donovan L, Birks S, Grunewald L, Zmuda F, Pilkington G, Kaul A, Chen YH, Dahiya S, Emnett R, Gianino S, Gutmann D, Poschl J, Bianchi E, Bockstaller M, Neumann P, Schuller U, Gevorgian A, Morozova E, Kazantsev I, Iukhta T, Safonova S, Punanov Y, Zheludkova O, Afanasyev B, Buss M, Remke M, Gandhi K, Kool M, Northcott P, Pfister S, Taylor M, Castellino R, Thompson J, Margraf L, Donahue D, Head H, Murray J, Burger P, Wortham M, Reitman Z, He Y, Bigner D, Yan H, Lee C, Triscott J, Foster C, Manoranjan B, Pambid MR, Fotovati A, Berns R, Venugopal C, O'Halloran K, Narendran A, Northcott P, Taylor MD, Singh SK, Singhal A, Rassekh R, Maxwell CA, Dunham C, Dunn SE, Pambid MR, Berns R, Hu K, Adomat H, Moniri M, Chin MY, Hessein M, Zisman N, Maurer N, Dunham C, Guns E, Dunn S, Koks C, De Vleeschouwer S, Graf N, Van Gool S, D'Asti E, Huang A, Korshunov A, Pfister S, Rak J, Gump W, Moriarty T, Gump W, Skjei K, Karkare S, Castelo-Branco P, Choufani S, Mack S, Gallagher D, Zhang C, Merino D, Wasserman J, Kool M, Jones DT, Croul S, Kreitzer F, Largaespada D, Conklin B, Taylor M, Weiss W, Garzia L, Morrissy S, Zayne K, Wu X, Dirks P, Hawkins C, Dick J, Stein L, Collier L, Largaespada D, Dupuy A, Taylor M, Rampazzo G, Moraes L, Paniago M, Oliveira I, Hitzler J, Silva N, Cappellano A, Cavalheiro S, Alves MT, Cerutti J, Toledo S, Liu Z, Zhao X, Mao H, Baxter P, Wang JCY, Huang Y, Yu L, Su J, Adekunle A, Perlaky L, Hurwitz M, Hurwitz R, Lau C, Chintagumpala M, Blaney S, Baruchel S, Li XN, Zhang J, Hariono S, Hashizume R, Fan Q, James CD, Weiss WA, Nicolaides T, Madsen PJ, Slaunwhite ES, Dirks PB, Ma JF, Henn RE, Hanno AG, Boucher KL, Storm PB, Resnick AC, Lourdusamy A, Rogers H, Ward J, Rahman R, Malkin D, Gilbertson R, Grundy R, Lourdusamy A, Rogers H, Ward J, Rahman R, Gilbertson R, Grundy R, Karajannis M, Fisher M, Pfister S, Milla S, Cohen K, Legault G, Wisoff J, Harter D, Merkelson A, Bloom M, Dhall G, Jones D, Korshunov A, Taylor MD, Pfister S, Eberhart C, Sievert A, Resnick A, Zagzag D, Allen J, Hankinson T, Gump J, Serrano-Almeida C, Torok M, Weksberg R, Handler M, Liu A, Foreman N, Garancher A, Rocques N, Miquel C, Sainte-Rose C, Delattre O, Bourdeaut F, Eychene A, Tabori U, Pouponnot C, Danielpour M, Levy R, Antonuk CD, Rodriguez J, Aravena JM, Kim GB, Gate D, Bannykh S, Svendsen C, Huang X, Town T, Breunig J, Amakye D, Robinson D, Rose K, Cho YJ, Ligon KL, Sharp T, Ando Y, Geoerger B, He Y, Doz F, Ashley D, Hargrave D, Casanova M, Tawbi H, Heath J, Bouffet E, Brandes AA, Chisholm J, Rodon J, Dubuc AM, Thomas A, Mita A, MacDonald T, Kieran M, Eisenstat D, Song X, Danielpour M, Levy R, Antonuk CD, Rodriguez J, Hashizume R, Aravena JM, Kim GB, Gate D, Bannykh S, Svendsen C, Town T, Breunig J, Morrissy AS, Mayoh C, Lo A, Zhang W, Thiessen N, Tse K, Moore R, Mungall A, Wu X, Van Meter TE, Cho YJ, Collins VP, MacDonald TJ, Li XN, Stehbens S, Fernandez-Lopez A, Malkin D, Marra MA, Taylor MD, Karajannis M, Legault G, Hagiwara M, Vega E, Merkelson A, Wisoff J, Younger S, Golfinos J, Roland JT, Allen J, Antonuk CD, Levy R, Kim GB, Town T, Danielpour M, Breunig J, Pak E, Barshow S, Zhao X, Ponomaryov T, Segal R, Levy R, Antonuk CD, Aravena JM, Kim GB, Svendsen C, Town T, Danielpour M, Zhu S, Breunig J, Chi S, Cohen K, Fisher M, Biegel J, Bowers D, Fangusaro J, Manley P, Janss A, Zimmerman MA, Wu X, Kieran M, Sayour E, Pham C, Sanchez-Perez L, Snyder D, Flores C, Kemeny H, Xie W, Cui X, Bigner D, Taylor MD, Sampson J, Mitchell D, Bandopadhayay P, Nguyen B, Masoud S, Vue N, Gholamin S, Yu F, Schubert S, Bergthold G, Weiss WA, Mitra S, Qi J, Bradner J, Kieran M, Beroukhim R, Cho YJ, Reddick W, Glass J, Ji Q, Paulus E, James CD, Gajjar A, Ogg R, Vanner R, Remke M, Aviv T, Lee L, Zhu X, Clarke I, Taylor M, Dirks P, Shuman MA, Hamilton R, Pollack I, Calligaris D, Liu X, Feldman D, Thompson C, Ide J, Buhrlage S, Gray N, Kieran M, Jan YN, Stiles C, Agar N, Remke M, Cavalli FMG, Northcott PA, Kool M, Pfister SM, Taylor MD, Project MAGIC, Rakopoulos P, Jan LY, Pajovic S, Buczkowicz P, Morrison A, Bouffet E, Bartels U, Becher O, Hawkins C, Truffaux N, Puget S, Philippe C, Gump W, Castel D, Taylor K, Mackay A, Le Dret L, Saulnier P, Calmon R, Boddaert N, Blauwblomme T, Sainte-Rose C, Jones C, Mutchnick I, Grill J, Liu X, Ebling M, Ide J, Wang L, Davis E, Marchionni M, Stuart D, Alberta J, Kieran M, Li KKW, Stiles C, Agar N, Remke M, Cavalli FMG, Northcott PA, Kool M, Pfister SM, Taylor MD, Project MAGIC, Tien AC, Pang JCS, Griveau A, Rowitch D, Ramkissoon L, Horowitz P, Craig J, Ramkissoon S, Rich B, Bergthold G, Tabori U, Taha H, Ng HK, Bowers D, Hawkins C, Packer R, Eberhart C, Goumnerova L, Chan J, Santagata S, Pomeroy S, Ligon A, Kieran M, Jackson S, Beroukhim R, Ligon K, Kuan CT, Chandramohan V, Keir S, Pastan I, Bigner D, Zhou Z, Ho S, Voss H, Patay Z, Souweidane M, Salloum R, DeWire M, Fouladi M, Goldman S, Chow L, Hummel T, Dorris K, Miles L, Sutton M, Howarth R, Stevenson C, Leach J, Griesinger A, Donson A, Hoffman L, Birks D, Amani V, Handler M, Foreman N, Sangar MC, Pai A, Pedro K, Ditzler SH, Girard E, Olson J, Gustafson WC, Meyerowitz J, Nekritz E, Charron E, Matthay K, Hertz N, Onar-Thomas A, Shokat K, Weiss W, Hanaford A, Raabe E, Eberhart C, Griesinger A, Donson A, Hoffman L, Amani V, Birks D, Gajjar A, Handler M, Mulcahy-Levy J, Foreman N, Olow AK, Dasgupta T, Yang X, Mueller S, Hashizume R, Kolkowitz I, Weiss W, Broniscer A, Resnick AC, Sievert AJ, Nicolaides T, Prados MD, Berger MS, Gupta N, James CD, Haas-Kogan DA, Flores C, Pham C, Dietl SM, Snyder D, Sanchez-Perez L, Bigner D, Sampson J, Mitchell D, Prakash V, Batanian J, Guzman M, Geller T, Pham CD, Wolfl M, Pei Y, Flores C, Snyder D, Bigner DD, Sampson JH, Wechsler-Reya RJ, Mitchell DA, Van Ommeren R, Venugopal C, Manoranjan B, Beilhack A, McFarlane N, Hallett R, Hassell J, Dunn S, Singh S, Dasgupta T, Olow A, Yang X, Hashizume R, Mueller S, Riedel S, Nicolaides T, Kolkowitz I, Weiss W, Prados M, Gupta N, James CD, Haas-Kogan D, Zhao H, Li L, Picotte K, Monoranu C, Stewart R, Modzelewska K, Boer E, Picard D, Huang A, Radiloff D, Lee C, Dunn S, Hutt M, Nazarian J, Dietl S, Price A, Lim KJ, Warren K, Chang H, Eberhart CG, Raabe EH, Persson A, Huang M, Chandler-Militello D, Li N, Vince GH, Berger M, James D, Goldman S, Weiss W, Lindquist R, Tate M, Rowitch D, Alvarez-Buylla A, Hoffman L, Donson A, Eyrich M, Birks D, Griesinger A, Amani V, Handler M, Foreman N, Meijer L, Walker D, Grundy R, O'Dowd S, Jaspan T, Schlegel PG, Dineen R, Fotovati A, Radiloff D, Coute N, Triscott J, Chen J, Yip S, Louis D, Toyota B, Hukin J, Weitzel D, Rassekh SR, Singhal A, Dunham C, Dunn S, Ahsan S, Hanaford A, Taylor I, Eberhart C, Raabe E, Sun YG, Ashcraft K, Stiles C, Han L, Zhang K, Chen L, Shi Z, Pu P, Dong L, Kang C, Cordero F, Lewis P, Liu C, Hoeman C, Schroeder K, Allis CD, Becher O, Gururangan S, Grant G, Driscoll T, Archer G, Herndon J, Friedman H, Li W, Kurtzberg J, Bigner D, Sampson J, Mitchell D, Yadavilli S, Kambhampati M, Becher O, MacDonald T, Bellamkonds R, Packer R, Buckley A, Nazarian J, DeWire M, Fouladi M, Stewart C, Wetmore C, Hawkins C, Jacobs C, Yuan Y, Goldman S, Fisher P, Rodriguez R, Rytting M, Bouffet E, Khakoo Y, Hwang E, Foreman N, Gilbert M, Gilbertson R, Gajjar A, Saratsis A, Yadavilli S, Wetzel W, Snyder K, Kambhampati M, Hall J, Raabe E, Warren K, Packer R, Nazarian J, Thompson J, Griesinger A, Foreman N, Spazojevic I, Rush S, Levy JM, Hutt M, Karajannis MA, Shah S, Eberhart CG, Raabe E, Rodriguez FJ, Gump J, Donson A, Tovmasyan A, Birks D, Handler M, Foreman N, Hankinson T, Torchia J, Khuong-Quang DA, Ho KC, Picard D, Letourneau L, Chan T, Peters K, Golbourn B, Morrissy S, Birks D, Faria C, Foreman N, Taylor M, Rutka J, Pfister S, Bouffet E, Hawkins C, Batinic-Haberle I, Majewski J, Kim SK, Jabado N, Huang A, Ladner T, Tomycz L, Watchmaker J, Yang T, Kaufman L, Pearson M, Dewhirst M, Ogg RJ, Scoggins MA, Zou P, Taherbhoy S, Jones MM, Li Y, Glass JO, Merchant TE, Reddick WE, Conklin HM, Gholamin S, Gajjar A, Khan A, Kumar A, Tye GW, Broaddus WC, Van Meter TE, Shih DJH, Northcott PA, Remke M, Korshunov A, Mitra S, Jones DTW, Kool M, Pfister SM, Taylor MD, Mille F, Levesque M, Remke M, Korshunov A, Izzi L, Kool M, Richard C, Northcott PA, Taylor MD, Pfister SM, Charron F, Yu F, Masoud S, Nguyen B, Vue N, Schubert S, Tolliday N, Kong DS, Sengupta S, Weeraratne D, Schreiber S, Cho YJ, Birks D, Jones K, Griesinger A, Amani V, Handler M, Vibhakar R, Achrol A, Foreman N, Brown R, Rangan K, Finlay J, Olch A, Freyer D, Bluml S, Gate D, Danielpour M, Rodriguez J, Shae JJ, Kim GB, Levy R, Bannykh S, Breunig JJ, Town T, Monje-Deisseroth M, Cho YJ, Weissman I, Cheshier S, Buczkowicz P, Rakopoulos P, Bouffet E, Morrison A, Bartels U, Becher O, Hawkins C, Dey A, Kenney A, Van Gool S, Pauwels F, De Vleeschouwer S, Barszczyk M, Buczkowicz P, Castelo-Branco P, Mack S, Nethery-Brokx K, Morrison A, Taylor M, Dirks P, Tabori U, Hawkins C, Chandramohan V, Keir ST, Bao X, Pastan IH, Kuan CT, Bigner DD, Bender S, Jones D, Kool M, Sturm D, Korshunov A, Lichter P, Pfister SM, Chen M, Lu J, Wang J, Keir S, Zhang M, Zhao S, Mook R, Barak L, Lyerly HK, Chen W, Ramachandran C, Nair S, Escalon E, Khatib Z, Quirrin KW, Melnick S, Kievit F, Stephen Z, Wang K, Silber J, Ellenbogen R, Zhang M, Hutzen B, Studebaker A, Bratasz A, Powell K, Raffel C, Guo C, Chang CC, Wortham M, Chen L, Kernagis D, Qin X, Cho YW, Chi JT, Grant G, McLendon R, Yan H, Ge K, Papadopoulos N, Bigner D, He Y, Cristiano B, Venkataraman S, Birks DK, Alimova I, Harris PS, Dubuc A, Taylor MD, Foreman NK, Vibhakar R, Ichimura K, Fukushima S, Totoki Y, Suzuki T, Mukasa A, Saito N, Kumabe T, Tominaga T, Kobayashi K, Nagane M, Iuchi T, Mizoguchi M, Sasaki T, Tamura K, Sugiyama K, Narita Y, Shibui S, Matsutani M, Shibata T, Nishikawa R, Northcott P, Zichner T, Jones D, Kool M, Jager N, Feychting M, Lannering B, Tynes T, Wesenberg F, Hauser P, Ra YS, Zitterbart K, Jabado N, Chan J, Fults D, Mueller S, Grajkowska W, Lichter P, Korbel J, Pfister S, Kool M, Jones DTW, Jaeger N, Northcott PA, Pugh T, Hovestadt V, Markant SL, Esparza LA, Bourdeaut F, Remke M, Taylor MD, Cho YJ, Pomeroy SL, Schueller U, Korshunov A, Eils R, Wechsler-Reya RJ, Lichter P, Pfister SM, Keir S, Pegram C, Lipp E, Rasheed A, Chandramohan V, Kuan CT, Kwatra M, Yan H, Bigner D, Chornenkyy Y, Buczkowicz P, Agnihotri S, Becher O, Hawkins C, Rogers H, Mayne C, Kilday JP, Coyle B, Grundy R, Sun T, Warrington N, Luo J, Brooks M, Dahiya S, Sengupta R, Rubin J, Erdreich-Epstein A, Robison N, Ren X, Zhou H, Ji L, Margo A, Jones D, Pfister S, Kool M, Sposto R, Asgharzadeh S, Clifford S, Gustafsson G, Ellison D, Figarella-Branger D, Doz F, Rutkowski S, Lannering B, Pietsch T, Broniscer A, Tatevossian R, Sabin N, Klimo P, Dalton J, Lee R, Gajjar A, Ellison D, Garzia L, Dubuc A, Pitcher G, Northcott P, Mariampillai A, Chan T, Skowron P, Wu X, Yao Y, Hawkins C, Peacock J, Zayne K, Croul S, Rutka J, Kenney A, Huang A, Yang V, Baylin S, Salter M, Taylor M, Ward S, Sengupta R, Rubin J, Garzia L, Morrissy S, Skowron P, Jelveh S, Lindsay P, Largaespada D, Collier L, Dupuy A, Hill R, Taylor M, Lulla RR, Laskowski J, Fangusaro J, DiPatri AJ, Alden T, Vanin EF, Tomita T, Goldman S, Soares MB, Rajagopal MU, Lau LS, Hathout Y, Gordish-Dressman H, Rood B, Datar V, Bochare S, Singh A, Khatau S, Fangusaro J, Goldman S, Lulla R, Rajaram V, Gopalakrishnan V, Morfouace M, Shelat A, Jaccus M, Freeman B, Zindy F, Robinson G, Guy K, Stewart C, Gajjar A, Roussel M, Krebs S, Chow K, Yi Z, Brawley V, Ahmed N, Gottschalk S, Lerner R, Harness J, Yoshida Y, Santos R, Torre JDL, Nicolaides T, Ozawa T, James D, Petritsch C, Vitte J, Chareyre F, Stemmer-Rachamimov A, Giovannini M, Hashizume R, Yu-Jen L, Tom M, Ihara Y, Huang X, Waldman T, Mueller S, Gupta N, James D, Shevtsov M, Yakovleva L, Nikolaev B, Dobrodumov A, Onokhin K, Bychkova N, Mikhrina A, Khachatryan W, Guzhova I, Martynova M, Bystrova O, Ischenko A, Margulis B, Martin A, Nirschl C, Polanczyk M, Cohen K, Pardoll D, Drake C, Lim M, Crowther A, Chang S, Yuan H, Deshmukh M, Gershon T, Meyerowitz JG, Gustafson WC, Nekritz EA, Swartling F, Shokat KM, Ruggero D, Weiss WA, Bergthold G, Rich B, Bandopadhayay P, Chan J, Santaga S, Hoshida Y, Golub T, Tabak B, Ferrer-Luna R, Grill J, Wen PY, Stiles C, Kieran M, Ligon K, Beroukhim R, Lulla RR, Laskowski J, Gireud M, Fangusaro J, Goldman S, Gopalakrishnan V, Merino D, Shlien A, Pienkowska M, Tabori U, Gilbertson R, Malkin D, Mueller S, Hashizume R, Yang X, Kolkowitz I, Olow A, Phillips J, Smirnov I, Tom M, Prados M, Berger M, Gupta N, Haas-Kogan D, Beez T, Sarikaya-Seiwert S, Janssen G, Felsberg J, Steiger HJ, Hanggi D, Marino AM, Baryawno N, Johnsen JI, Ostman A, Wade A, Engler JR, Robinson AE, Phillips JJ, Witt H, Sill M, Mack SC, Wani KM, Lambert S, Tzaridis T, Bender S, Jones DT, Milde T, Northcott PA, Kool M, von Deimling A, Kulozik AE, Witt O, Lichter P, Collins VP, Aldape K, Taylor MD, Korshunov A, Pfister SM, Hatcher R, Das C, Datar V, Taylor P, Singh A, Lee D, Fuller G, Ji L, Fangusaro J, Rajaram V, Goldman S, Eberhart C, Gopalakrishnan V, Griveau A, Lerner R, Ihrie R, Sugiarto S, Ihara Y, Reichholf B, Huillard E, Mcmahon M, James D, Phillips J, Buylla AA, Rowitch D, Petritsch C, Snuderl M, Batista A, Kirkpatrick N, de Almodovar CR, Riedemann L, Knevels E, Schmidt T, Peterson T, Roberge S, Bais C, Yip S, Hasselblatt M, Rossig C, Ferrara N, Klagsbrun M, Duda D, Fukumura D, Xu L, Carmeliet P, Jain R, Nguyen A, Pencreach E, Lasthaus C, Lobstein V, Guerin E, Guenot D, Entz-Werle N, Diaz R, Golbourn B, Faria C, Shih D, MacKenzie D, Picard D, Bryant M, Smith C, Taylor M, Huang A, Rutka J, Gromeier M, Desjardins A, Sampson JH, Threatt SJE, Herndon JE, Friedman A, Friedman HS, Bigner DD, Cavalli FMG, Morrissy AS, Li Y, Chu A, Remke M, Thiessen N, Mungall AJ, Bader GD, Malkin D, Marra MA, Taylor MD, Manoranjan B, Wang X, Hallett R, Venugopal C, Mack S, McFarlane N, Nolte S, Scheinemann K, Gunnarsson T, Hassell J, Taylor M, Lee C, Triscott J, Foster C, Dunham C, Hawkins C, Dunn S, Singh S, McCrea HJ, Bander E, Venn RA, Reiner AS, Iorgulescu JB, Puchi LA, Schaefer PM, Cederquist G, Greenfield JP, Tsoli M, Luk P, Dilda P, Hogg P, Haber M, Ziegler D, Mack S, Agnihotri S, Witt H, Shih D, Wang X, Ramaswamy V, Zayne K, Bertrand K, Massimi L, Grajkowska W, Lach B, Gupta N, Weiss W, Guha A, Zadeh G, Rutka J, Korshunov A, Pfister S, Taylor M, Mack S, Witt H, Jager N, Zuyderduyn S, Nethery-Brokx K, Garzia L, Zayne K, Wang X, Barszczyk M, Wani K, Bouffet E, Weiss W, Hawkins C, Rutka J, Bader G, Aldape K, Dirks P, Pfister S, Korshunov A, Taylor M, Engler J, Robinson A, Wade A, Molinaro A, Phillips J, Ramaswamy V, Remke M, Bouffet E, Faria C, Shih D, Gururangan S, McLendon R, Schuller U, Ligon K, Pomeroy S, Jabado N, Dunn S, Fouladi M, Rutka J, Hawkins C, Tabori U, Packer R, Pfister S, Korshunov A, Taylor M, Faria C, Dubuc A, Golbourn B, Diaz R, Agnihotri S, Sabha N, Luck A, Leadly M, Reynaud D, Wu X, Remke M, Ramaswamy V, Northcott P, Pfister S, Croul S, Kool M, Korshunov A, Smith C, Taylor M, Rutka J, Pietsch T, Doerner E, Muehlen AZ, Velez-Char N, Warmuth-Metz M, Kortmann R, von Hoff K, Friedrich C, Rutkowski S, von Bueren A, Lu YJ, James CD, Hashizume R, Mueller S, Phillips J, Gupta N, Sturm D, Northcott PA, Jones DTW, Korshunov A, Picard D, Lichter P, Huang A, Pfister SM, Kool M, Ward J, Teague C, Shriyan B, Grundy R, Rahman R, Taylor K, Mackay A, Morozova O, Butterfield Y, Truffaux N, Philippe C, Vinci M, de Torres C, Cruz O, Mora J, Hargrave D, Puget S, Yip S, Jones C, Grill J, Smith S, Ward J, Tan C, Grundy R, Rahman R, Bjerke L, Mackay A, Nandhabalan M, Burford A, Jury A, Popov S, Bax D, Carvalho D, Taylor K, Vinci M, Bajrami I, McGonnell I, Lord C, Reis R, Hargrave D, Ashworth A, Workman P, Jones C, Carvalho D, Mackay A, Burford A, Bjerke L, Chen L, Kozarewa I, Lord C, Ashworth A, Hargrave D, Reis R, Jones C, Marigil M, Jauregui PJ, Alonso M, Chan TS, Hawkins C, Picard D, Henkin J, Huang A, Trubicka J, Kucharczyk M, Pelc M, Chrzanowska K, Ciara E, Perek-Polnik M, Grajkowska W, Piekutowska-Abramczuk D, Jurkiewicz D, Luczak S, Borucka-Mankiewicz M, Kowalski P, Krajewska-Walasek M, de Mola RML, Laskowski J, Fangusaro J, Costa FF, Vanin EF, Goldman S, Soares MB, Lulla RR, Mann A, Venugopal C, Vora P, Singh M, van Ommeren R, McFarlane N, Manoranjan B, Qazi M, Scheinemann K, MacDonald P, Delaney K, Whitton A, Dunn S, Singh S, Sievert A, Lang SS, Boucher K, Madsen P, Slaunwhite E, Choudhari N, Kellet M, Storm P, Resnick A, Agnihotri S, Burrell K, Fernandez N, Golbourn B, Clarke I, Barszczyk M, Sabha N, Dirks P, Jones C, Rutka J, Zadeh G, Hawkins C, Murphy B, Obad S, Bihannic L, Ayrault O, Zindy F, Kauppinen S, Roussel M, Golbourn B, Agnihotri S, Cairns R, Mischel P, Aldape K, Hawkins C, Zadeh G, Rutka J, Rush S, Donson A, Kleinschmidt-DeMasters B, Bemis L, Birks D, Chan M, Smith A, Handler M, Foreman N, Gronych J, Jones DTW, Zuckermann M, Hutter S, Korshunov A, Kool M, Ryzhova M, Reifenberger G, Pfister SM, Lichter P, Jones DTW, Hovestadt V, Picelli S, Wang W, Northcott PA, Kool M, Jager N, Reifenberger G, Rutkowski S, Pietsch T, Sultan M, Yaspo ML, Landgraf P, Eils R, Korshunov A, Zapatka M, Pfister SM, Radlwimmer B, Lichter P, Huang Y, Mao H, Wang Y, Kogiso M, Zhao X, Baxter P, Man C, Wang Z, Zhou Y, Li XN, Chung AH, Crabtree D, Schroeder K, Becher OJ, Panosyan E, Wang Y, Lasky J, Liu Z, Zhao X, Wang Y, Mao H, Huang Y, Kogiso M, Baxter P, Adesina A, Su J, Picard D, Huang A, Perlaky L, Chintagumpala M, Lau C, Blaney S, Li XN, Huang M, Persson A, Swartling F, Moriarity B. Abstracts. Neuro Oncol 2013. [DOI: 10.1093/neuonc/not047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Wakiya T, Sanada Y, Urahashi T, Ihara Y, Yamada N, Okada N, Egami S, Sakamoto K, Murayama K, Hakamada K, Yasuda Y, Mizuta K. Living donor liver transplantation from an asymptomatic mother who was a carrier for ornithine transcarbamylase deficiency. Pediatr Transplant 2012; 16:E196-200. [PMID: 22583334 DOI: 10.1111/j.1399-3046.2012.01716.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Liver transplantation (LT) has been adopted as a radical treatment for ornithine transcarbamylase deficiency (OTCD), yielding favorable outcomes. Despite the fact that it is an inheritable disease, a blood relative who is heterozygous for the disorder must sometimes be used as a liver donor for living donor LT. There is ongoing discussion regarding the use of heterozygous donors, however, to our knowledge, no cases where donation was determined based on the Ornithine transcarbamylase (OTC) activity before LT have been reported. Between May 2001 and April 2011, 17 patients were indicated for living donor LT because of OTCD at our facility. There were three cases with heterozygous donor candidate (17.6%). All heterozygous candidates underwent a liver biopsy to measure their OTC activity before LT and made efforts to secure the safety of the both donor and recipient. Two of 3 candidates had headaches sometimes, and their activity was less than 40%, and thus they were not employed as the donor. One candidate with 104.4% activity was employed, yielding favorable outcomes. Our current experience supported the effectiveness of our donation criteria, however it is necessary to collect sufficient data on a large number of patients to confirm the safety of the procedure.
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Affiliation(s)
- T Wakiya
- Department of Transplant Surgery, Jichi Medical University, Tochigi, Japan.
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Yamada N, Urahashi T, Ihara Y, Sanada Y, Wakiya T, Okada N, Mizuta K. Veno-occlusive disease/sinusoidal obstruction syndrome associated with potential antibody-mediated rejection after pediatric living donor liver transplantation: a case report. Transplant Proc 2012; 44:810-3. [PMID: 22483502 DOI: 10.1016/j.transproceed.2012.01.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A 9-month-old girl with biliary atresia underwent successful living donor liver transplantation from her 42-year-old ABO blood-type incompatible mother. The postoperative course was uneventful until postoperative day (POD) 13 when the recipient displayed an increased volume of drained ascites and decreased her platelet count showing low-velocity portal venous inflow without hepatic venous outflow obstruction. We suspected potential veno-occlusive disease/sinusoidal obstruction syndrome (vod/sos) due to an acute cellular rejection (ACR) episode and performed a liver biopsy (LB). We diagnosed severe episode (Rejection Activity Index Score; P3V3B1 = 7) and started steroid pulse therapy. We performed a second LB on POD 27 because the patient showed weight gain and tender hepatomegaly, diagnosing moderate ACR (P1V3B1 = 5). We started a second course of steroid pulse therapy, but the patient's clinical findings did not improve. On POD 43, her third LB finding showed P1V1B1 with improved processes from ACR, but still displaying severe congestion and fibrotic obliteration of small hepatic veins. We suspected that her immunologic responses were associated with antibody-mediated rejection (AMR) because her anti-HLA class I and class II antibodies were positive by flow panel-reactive antibody method and donor-specific antigen class II and C4d staining were also positive. We added mycophenolate mofetil and administered high-dose intravenous immunoglobulin to control the AMR, and anticoagulant therapy for the VOD/SOS. Her clinical findings and graft venous abnormalities finally improved; she was eventually discharged without sequelae on POD 72.
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Affiliation(s)
- N Yamada
- Department of Transplant Surgery, Jichi, Medical University, Szhimotsuke-shi, Tochigi, Japan.
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Sanada Y, Ushijima K, Mizuta K, Urahashi T, Ihara Y, Wakiya T, Okada N, Yamada N, Egami S, Hishikawa S, Otomo S, Sakamoto K, Yasuda Y, Kawarasaki H. Prediction of Acute Cellular Rejection by Peripheral Blood Eosinophilia in Pediatric Living Donor Liver Transplantation. Transplant Proc 2012; 44:1341-5. [DOI: 10.1016/j.transproceed.2012.01.132] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2011] [Revised: 11/26/2011] [Accepted: 01/31/2012] [Indexed: 11/25/2022]
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Mizuta K, Urahashi T, Ihara Y, Sanada Y, Wakiya T, Yamada N, Okada N, Egami S, Kawarasaki H. Varicella Zoster Virus Disease After Pediatric Living Donor Liver Transplantation: Is It Serious? Transplant Proc 2012; 44:780-3. [DOI: 10.1016/j.transproceed.2012.01.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Mizuta K, Urahashi T, Ihara Y, Sanada Y, Wakiya T, Yamada N, Okada N, Egami S, Hishikawa S, Hyodo M, Sakuma Y, Fujiwara T, Kawarasaki H, Yasuda Y. Living Donor Liver Transplantation in Children With Cholestatic Liver Disease: A Single-Center Experience. Transplant Proc 2012; 44:469-72. [DOI: 10.1016/j.transproceed.2011.11.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Hattori T, Ihara Y, Nakai Y, Ishida K, Tada Y, Fujimoto S, Kawakami N, Osaki E, Deguchi K, Sato NK, Satoh I. Superconductivity induced by longitudinal ferromagnetic fluctuations in UCoGe. Phys Rev Lett 2012; 108:066403. [PMID: 22401093 DOI: 10.1103/physrevlett.108.066403] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2011] [Indexed: 05/31/2023]
Abstract
From detailed angle-resolved NMR and Meissner measurements on a ferromagnetic (FM) superconductor UCoGe (T(Curie)∼2.5 K and T(SC)∼0.6 K), we show that superconductivity in UCoGe is tightly coupled with longitudinal FM spin fluctuations along the c axis. We found that magnetic fields along the c axis (H∥c) strongly suppress the FM fluctuations and that the superconductivity is observed in the limited magnetic-field region where the longitudinal FM spin fluctuations are active. These results, combined with model calculations, strongly suggest that the longitudinal FM spin fluctuations tuned by H∥c induce the unique spin-triplet superconductivity in UCoGe. This is the first clear example that FM fluctuations are intimately related with superconductivity.
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Affiliation(s)
- T Hattori
- Department of Physics, Graduate School of Science, Kyoto University, Kyoto, Japan.
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Sanada Y, Mizuta K, Urahashi T, Ihara Y, Wakiya T, Okada N, Yamada N, Egami S, Hishikawa S, Ushijima K, Otomo S, Sakamoto K, Yasuda Y, Kawarasaki H. Hepatic Arterial Buffer Response after Pediatric Living Donor Liver Transplantation: Report of a Case. Transplant Proc 2011; 43:4019-24. [DOI: 10.1016/j.transproceed.2011.08.094] [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] [Received: 06/21/2011] [Accepted: 08/19/2011] [Indexed: 01/08/2023]
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Kiss A, Pályi A, Ihara Y, Wzietek P, Simon P, Alloul H, Zólyomi V, Koltai J, Kürti J, Dóra B, Simon F. Enhanced NMR relaxation of Tomonaga-Luttinger liquids and the magnitude of the carbon hyperfine coupling in single-wall carbon nanotubes. Phys Rev Lett 2011; 107:187204. [PMID: 22107670 DOI: 10.1103/physrevlett.107.187204] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2011] [Indexed: 05/31/2023]
Abstract
Recent transport measurements [Churchill et al. Nature Phys. 5, 321 (2009)] found a surprisingly large, 2-3 orders of magnitude larger than usual (13)C hyperfine coupling (HFC) in (13)C enriched single-wall carbon nanotubes. We formulate the theory of the nuclear relaxation time in the framework of the Tomonaga-Luttinger liquid theory to enable the determination of the HFC from recent data by Ihara et al. [Europhys. Lett. 90, 17,004 (2010)]. Though we find that 1/T(1) is orders of magnitude enhanced with respect to a Fermi-liquid behavior, the HFC has its usual, small value. Then, we reexamine the theoretical description used to extract the HFC from transport experiments and show that similar features could be obtained with HFC-independent system parameters.
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Affiliation(s)
- A Kiss
- Budapest University of Technology and Economics, Institute of Physics and Condensed Matter Research Group of the Hungarian Academy of Sciences, H-1521 Budapest, Hungary
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Ihara Y, Hattori T, Ishida K, Nakai Y, Osaki E, Deguchi K, Sato NK, Satoh I. Anisotropic magnetic fluctuations in the ferromagnetic superconductor UCoGe studied by direction-dependent 59Co NMR measurements. Phys Rev Lett 2010; 105:206403. [PMID: 21231251 DOI: 10.1103/physrevlett.105.206403] [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] [Received: 08/17/2010] [Indexed: 05/30/2023]
Abstract
We have carried out direction-dependent 59Co NMR experiments on a single crystal sample of the ferromagnetic superconductor UCoGe in order to study the magnetic properties in the normal state. The Knight-shift and nuclear spin-lattice relaxation rate measurements provide microscopic evidence that both static and dynamic susceptibilities are ferromagnetic with strong Ising anisotropy. We discuss that superconductivity induced by these magnetic fluctuations prefers spin-triplet pairing state.
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Affiliation(s)
- Y Ihara
- Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan.
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Inoue T, Ihara Y, Tomonoh Y, Ninomiya S, Kodama R, Nakamura N, Fujita T, Ideguchi H, Yasumoto S, Hirose S. P25-6 EEG and VEP findings of acute confusional migraine in children. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)61028-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Yasumoto S, Inoue T, Ideguchi H, Fujita T, Nakamura N, Ihara Y, Ninomiya S, Tomonoh Y, Hirose S. P25-9 Application of motor nerve conduction study in spinal cord diseases of children. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)61031-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Ihara Y, Alloul H, Wzietek P, Pontiroli D, Mazzani M, Riccò M. NMR study of the Mott transitions to superconductivity in the two Cs3C60 phases. Phys Rev Lett 2010; 104:256402. [PMID: 20867402 DOI: 10.1103/physrevlett.104.256402] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2010] [Indexed: 05/29/2023]
Abstract
We report a NMR and magnetometry study on the expanded intercalated fulleride Cs3C60 in both its A15 and face centered cubic structures. NMR allowed us to evidence that both exhibit a first-order Mott transition to a superconducting state, occurring at distinct critical pressures p{c} and temperatures T{c}. Though the ground state magnetism of the Mott phases differs, their high T paramagnetic and superconducting properties are found similar, and the phase diagrams versus unit volume per C60 are superimposed. Thus, as expected for a strongly correlated system, the interball distance is the relevant parameter driving the electronic behavior and quantum transitions of these systems.
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Affiliation(s)
- Y Ihara
- Laboratoire de Physique des Solides, Universite Paris-Sud 11, CNRS UMR 8502, 91405 Orsay, France.
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Koboyashi C, Matsunami K, Omori T, Nakahata K, Nakatsu S, Xu H, Gao C, Ihara Y, Fukuzawa M, Miyagawa S. Cross-species function of the pig C1 esterase inhibitor. Transplant Proc 2007; 38:3321-2. [PMID: 17175261 DOI: 10.1016/j.transproceed.2006.10.053] [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] [Received: 07/26/2006] [Indexed: 12/01/2022]
Abstract
BACKGROUND The use of a bioartificial liver with pig cells for the treatment of fulminant hepatic failure will require research on the plasma complement regulatory proteins of the pig, because the liver produces most of the complement components and plasma complement regulatory proteins. In our previous study, the pig C1 esterase inhibitor (C1-INH), which functions as an inhibitor of the complement reaction in the first step of the classical pathway in the fluid phase, was cloned and some relevant features of the molecule were characterized, especially its cross-species regulation, in comparison with human C1-INH. In a further analysis, the species specificity of C1-INH was examined, using pig endothelial cells (PEC) and several types of sera. MATERIALS AND METHODS The cDNA of pig C1-INH was used to produce the membrane type pC1-INH, pC1-INH-PI, and inserted into the cloning site of pCXN2 (chicken beta actin promoter). The pCX/pCl-INH-PI plasmid was then transfected into PEC to establish stable PEC with pCl-INH-PI. The expression of the pCl-INH-PI was evaluated by a FACS analysis, and complement-dependent cell lysis with human, dog, rabbit, and mouse sera was then assessed. RESULTS The transfectant with pig Cl-INH-PI showed a high level of expression on PEC. The PEC transfectants showed an inhibitory effect on complement-dependent PEC lysis. Pig Cl-INH did not show the same suppressive effect for each serum. However, considering the alternative pathway activation of each serum on the pig cell membrane, it can be concluded that pCl-INH has a relatively small species restriction. CONCLUSION Pig Cl-INH, having a similar structure to human Cl-INH, shows a strong complement regulatory function on other species sera.
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Affiliation(s)
- C Koboyashi
- Department of Organ Transplantation, Osaka University Graduate School of Medicine, Osaka, Japan
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Kokawa K, Nishiyama K, Ikeuchi M, Ihara Y, Akamatsu N, Enomoto T, Ishiko O, Motoyama S, Fujii S, Umesaki N. Clinical outcomes of uterine sarcomas: results from 14 years worth of experience in the Kinki district in Japan (1990-2003). Int J Gynecol Cancer 2007; 16:1358-63. [PMID: 16803530 DOI: 10.1111/j.1525-1438.2006.00536.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [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: 11/30/2022] Open
Abstract
To review clinical outcomes and therapeutic varieties, we were invited to submit data from the patients who were treated for uterine sarcomas in Japan from 1990 to 2003. Uterine sarcomas were defined as leiomyosarcoma (LMS), endometrial stromal sarcoma (ESS), and carcinosarcoma (CS). Of a total of 97 patients, 36 (37.1%) were diagnosed with LMS of the uterine corpus, 15 (15.5%) with ESS, 46 (47.4%) with CS. Median age at diagnosis was 59 (21-85) years. Clinical stages based on FIGO were 41 (42.3%) with stage I disease, 6 (6.2%) with staged II, 34 (35.1%) with stage III, and 16 (16.5%) with stage IV. The median follow-up period for all patients was 13 (1-108) months and median disease-free period was 9 (0-96) months. The 1-year survival rate and disease-free survival (DFS) rate were calculated in patients with all sarcomas (overall survival [OAS], 61.3%; DFS, 46.6%). Statistical analysis showed that younger age (less than 50 years), early stage (stages I and II), and surgical procedure (extended hysterectomy [EH] and radical hysterectomy [RH]) were associated with significantly better OAS. Histologic types did not affect the survival period. In conclusion, aggressive surgery including EH or RH at the time of initial operation offers the possibility of prolonged survival.
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Affiliation(s)
- K Kokawa
- Department of Obstetrics and Gynecology, Wakayama Medical University, 811-1 kimiidera, Wakayama 641-0012, Japan.
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Kokawa K, Nishiyama K, Ikeuchi M, Ihara Y, Akamatsu N, Enomoto T, Ishiko O, Motoyama S, Fujii S, Umesaki N. Clinical outcomes of uterine sarcomas: results from 14 years worth of experience in the Kinki district in Japan (1990–2003). Int J Gynecol Cancer 2006. [DOI: 10.1136/ijgc-00009577-200605000-00062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
To review clinical outcomes and therapeutic varieties, we were invited to submit data from the patients who were treated for uterine sarcomas in Japan from 1990 to 2003. Uterine sarcomas were defined as leiomyosarcoma (LMS), endometrial stromal sarcoma (ESS), and carcinosarcoma (CS). Of a total of 97 patients, 36 (37.1%) were diagnosed with LMS of the uterine corpus, 15 (15.5%) with ESS, 46 (47.4%) with CS. Median age at diagnosis was 59 (21–85) years. Clinical stages based on FIGO were 41 (42.3%) with stage I disease, 6 (6.2%) with staged II, 34 (35.1%) with stage III, and 16 (16.5%) with stage IV. The median follow-up period for all patients was 13 (1–108) months and median disease-free period was 9 (0–96) months. The 1-year survival rate and disease-free survival (DFS) rate were calculated in patients with all sarcomas (overall survival [OAS], 61.3%; DFS, 46.6%). Statistical analysis showed that younger age (less than 50 years), early stage (stages I and II), and surgical procedure (extended hysterectomy [EH] and radical hysterectomy [RH]) were associated with significantly better OAS. Histologic types did not affect the survival period. In conclusion, aggressive surgery including EH or RH at the time of initial operation offers the possibility of prolonged survival.
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Kameda A, Shiba T, Kawazoe Y, Satoh Y, Ihara Y, Munekata M, Ishige K, Noguchi T. A novel ATP regeneration system using polyphosphate-AMP phosphotransferase and polyphosphate kinase. J Biosci Bioeng 2005; 91:557-63. [PMID: 16233039 DOI: 10.1263/jbb.91.557] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2001] [Accepted: 03/09/2001] [Indexed: 11/17/2022]
Abstract
Polyphosphate-AMP phosphotransferase (PAP) and polyphosphate kinase (PPK) were used for designing a novel ATP regeneration system, named the PAP-PPK ATP regeneration system. PAP is an enzyme that catalyzes the phospho-conversion of AMP to ADP, and PPK catalyzes ATP formation from ADP. Both enzymes use inorganic polyphosphate [poly(P)] as a phosphate donor. In the PAP-PPK ATP regeneration system, ATP was continuously synthesized from AMP by the coupling reaction of PAP and PPK using poly(P). Poly(P) is a cheap material compared to acetyl phosphate, phosphoenol pyruvate and creatine phosphate, which are phosphate donors used for conventional ATP regeneration systems. To achieve efficient synthesis of ATP from AMP, an excessive amount of poly(P) should be added to the reaction solution because both PAP and PPK consume poly(P) as a phosphate donor. Using this ATP generation reaction, we constructed the PAP-PPK ATP regeneration system with acetyl-CoA synthase and succeeded in synthesizing acetyl-CoA from CoA, acetate and AMP. Since too much poly(P) may chelate MG2+ and inhibit enzyme activity, the Mg2+ concentration was optimized to 24 mM in the presence of 30 mM poly(P) in the reaction. In this reaction, ATP was regenerated 39.8 times from AMP, and 99.5% of CoA was converted to acetyl-CoA. In addition, since the PAP-PPK ATP regeneration system can regenerate GTP from GMP, it could also be used as a GTP regeneration system.
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Affiliation(s)
- A Kameda
- Division of Molecular Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan
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Katsuno T, Morishima-Kawashima M, Saito Y, Yamanouchi H, Ishiura S, Murayama S, Ihara Y. Independent accumulations of tau and amyloid beta-protein in the human entorhinal cortex. Neurology 2005; 64:687-92. [PMID: 15728293 DOI: 10.1212/01.wnl.0000151958.79884.86] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [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: 11/15/2022] Open
Abstract
BACKGROUND Previous studies have repeatedly described that neurofibrillary tangles arise earlier than senile plaques (SPs) in the entorhinal cortex, but one study suggested that SPs, if present, enhance the former lesions. All of these studies were performed at the histologic or immunocytochemical level, which may not accurately reflect the actual levels of amyloid beta-protein (Abeta) and tau. OBJECTIVE To determine whether there is significant interaction between Abeta and tau in the human entorhinal cortex with regard to the Braak stage. METHODS Biochemical studies were conducted on 50 brains from elderly people, who were mainly at Braak stages I to III. All the cases were examined neuropathologically and staged according to Braak and Braak. A small piece of brain tissue for each case was dissected from the anterior portion of the right entorhinal cortex. The amounts of tau and Abeta in the insoluble fraction of the tissue were quantified using western blotting. RESULTS The levels of tau and possibly Abeta42 in the entorhinal cortex appeared to rise steeply at approximately age 75. The levels of insoluble tau increased as the Braak stage increased from I to II; however, it had a tendency to remain between stages II and III. The levels of Abeta42 showed a small increase, whereas those of Abeta40 increased continuously as the Braak stage advanced. In contrast, the extent of Abeta42 accumulation increased with increasing Braak stage for SPs. There was no significant correlation between the levels of insoluble tau and Abeta42 in the entorhinal cortex. Even if Abeta did not accumulate to significant extents, substantial accumulation of insoluble tau occurred. CONCLUSION Accumulations of tau and amyloid beta-protein occur independently in the human entorhinal cortex.
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Affiliation(s)
- T Katsuno
- Department of Neuropathology, Faculty of Medicine, Graduate School of Arts and Science, University of Tokyo, Tokyo, Japan
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Hamaguchi T, Kitamoto T, Sato T, Mizusawa H, Nakamura Y, Noguchi M, Furukawa Y, Ishida C, Kuji I, Mitani K, Murayama S, Kohriyama T, Katayama S, Yamashita M, Yamamoto T, Udaka F, Kawakami A, Ihara Y, Nishinaka T, Kuroda S, Suzuki N, Shiga Y, Arai H, Maruyama M, Yamada M. Clinical diagnosis of MM2-type sporadic Creutzfeldt-Jakob disease. Neurology 2005; 64:643-8. [PMID: 15728285 DOI: 10.1212/01.wnl.0000151847.57956.fa] [Citation(s) in RCA: 96] [Impact Index Per Article: 5.1] [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: 11/15/2022] Open
Abstract
BACKGROUND No method for the clinical diagnosis of MM2-type sporadic Creutzfeldt-Jakob disease (sCJD) has been established except for pathologic examination. OBJECTIVE To identify a reliable marker for the clinical diagnosis of MM2-type sCJD. METHODS CSF, EEG, and neuroimaging studies were performed in eight patients with MM2-type sCJD confirmed by neuropathologic, genetic, and western blot analyses. RESULTS The eight cases were pathologically classified into the cortical (n = 2), thalamic (n = 5), and combined (corticothalamic) (n = 1) forms. The cortical form was characterized by late-onset, slowly progressive dementia, cortical hyperintensity signals on diffusion-weighted imaging (DWI) of brain, and elevated levels of CSF 14-3-3 protein. The thalamic form showed various neurologic manifestations including dementia, ataxia, and pyramidal and extrapyramidal signs with onset at various ages and relatively long disease duration. Characteristic EEG and MRI abnormalities were almost absent. However, all four patients examined with cerebral blood flow (CBF) study using SPECT showed reduction of the CBF in the thalamus as well as the cerebral cortex. The combined form had features of both the cortical and the thalamic forms, showing cortical hyperintensity signals on DWI and hypometabolism of the thalamus on [18F]2-fluoro-2-deoxy-d-glucose PET. CONCLUSION For the clinical diagnosis of MM2-type sporadic Creutzfeldt-Jakob disease, cortical hyperintensity signals on diffusion-weighted MRI are useful for the cortical form and thalamic hypoperfusion or hypometabolism on cerebral blood flow SPECT or [18F]2-fluoro-2-deoxy-d-glucose PET for the thalamic form.
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Affiliation(s)
- T Hamaguchi
- Department of Neurology and Neurobiology of Aging, Kanazawa University Graduate School of Medical Science, Takara-machi, Kanazawa, Japan
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Kubota A, Kawahara H, Okuyama H, Oue T, Tazuke Y, Ihara Y, Nose S, Okada A, Shimada K. Endorectal pull-through with posterior sagittal approach to the repair of postoperative rectourethral and rectovaginal fistula. J Pediatr Surg 2003; 38:1775-7. [PMID: 14666465 DOI: 10.1016/j.jpedsurg.2003.08.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND/PURPOSE Rectourethral (RUF) or rectovaginal fistula (RVF) is a troublesome complication after anorectal surgery because of dense adhesions around the fistula. The authors applied a new technique for the redo surgery. METHODS Case 1 is Hirschsprung's disease in a 1-year-old boy who underwent modified Duhamel's procedure and had RUF. Case 2 is rectovestibular fistula in an 11-year-old girl who had anterior sagittal anorectoplasty complicated by RVF. Case 3 is multiple urogenital anomalies including rectovesical fistula in a 4-year-old boy in whom transvesical repair was unsuccessful. The colon was mobilized as far as possible at laparotomy. The rectum was opened via a posterior sagittal approach leaving 1 cm of the anal canal. Extended endorectal mucosectomy was performed to the dentate line, and the fistula was closed from inside of the rectum. The remaining mucosal cuff was everted out of the anus and the intact colon was pulled through the rectum and anastomosed to the cuff extraanally. RESULTS The postoperative contrast enema showed no recurrent fistula, and defecation was not impaired. CONCLUSIONS Endorectal pull-through of the intact colon can spare troublesome mobilization of the fistula and can prevent the recurrence of fistula. Rectal incision via a posterior sagittal approach provides a direct view of the fistula.
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Affiliation(s)
- A Kubota
- Department of Pediatric Surgery, Osaka Medical Center for Maternal and Child Health, Izumi, Osaka, Japan
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41
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Abstract
Calsequestrin (CSQ) is the major Ca2+ binding protein of the cardiac sarcoplasmic reticulum (SR). Transgenic mice overexpressing CSQ at the age of 7 weeks exhibit concentric cardiac hypertrophy, and by 13 weeks the condition progresses to dilated cardiomyopathy. The present study used a differential display analysis to identify genes whose expressions are modulated in the CSQ-overexpressing mouse hearts to provide information on the mechanism of transition from concentric cardiac hypertrophy to failure. Cardiac ankyrin repeat protein (CARP), glutathione peroxidase (Gpx1), and genes which participate in the formation of extracellular matrix including decorin, TSC-36, Magp2, Osf2, and SPARC are upregulated in CSQ mouse hearts at 7 and 13 weeks of age compared to those of non-transgenic littermates. In addition, two novel genes without sequence similarities to any known genes are upregulated in CSQ-overexpressing mouse hearts. Several genes are downregulated at 13 weeks, including SR Ca2+-ATPase (SERCA2) and adenine nucleotide translocase 1 (Ant1) genes. Further, a functionally yet unknown gene (NM_026586) previously identified in the mouse wolffian duct is dramatically downregulated in CSQ mice with dilated hearts. Thus, CARP, Gpx1, and genes encoding extracellular matrix proteins may participate in the development of cardiac hypertrophy and fibrosis, and changes in SERCA2, Ant1, and NM_026586 mRNA expression may be involved in transition from concentric to dilated cardiac hypertrophy.
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Affiliation(s)
- Y Ihara
- Hokkaido Food Processing Research Center, Ebetsu, 069-0836 Hokkaido, Japan
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Goto S, Ihara Y, Urata Y, Izumi S, Abe K, Koji T, Kondo T. Doxorubicin-induced DNA intercalation and scavenging by nuclear glutathione S-transferase pi. FASEB J 2001; 15:2702-14. [PMID: 11726546 DOI: 10.1096/fj.01-0376com] [Citation(s) in RCA: 80] [Impact Index Per Article: 3.5] [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: 01/04/2023]
Abstract
Glutathione S-transferase (GST) functions in xenobiotic biotransformation and drug metabolism. Increased expression of GSTpi, an isozyme of GST, has been found in cancer cells resistant to doxorubicin hydrochloride (DOX) or cis-diamminedichloroplatinum (II) (CDDP), and this increase was believed to be correlated with drug resistance of cancer cells. GST is mainly expressed in the cytoplasm; GSTpi in the nucleus has been reported in cancer cells, but the meaning of this result is not known. Here, we studied changes in the amount of nuclear GSTpi after exposure of cancer cells to anticancer drugs, and role of the nuclear GSTpi in drug resistance. We found nuclear GSTpi in cancer cells resistant to DOX, and the amount of nuclear GSTpi was enhanced by treatment of the cancer cells with DOX or CDDP. We also found that a mushroom lectin, an inhibitor of nuclear transport, inhibited the nuclear transfer of GSTpi, suggesting the existence of a specific transport system for the nuclear transfer of GSTpi. Nuclear GSTpi protected DNA against damage by anticancer drugs. These results suggest a possible role of GSTpi in the acquisition of resistance to anticancer drugs by cancer cells.
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Affiliation(s)
- S Goto
- Department of Biochemistry and Molecular Biology in Disease, Atomic Bomb Disease Institute, Nagasaki University School of Medicine, Japan
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Morishima-Kawashima M, Ihara Y. [Recent advances in Alzheimer's disease]. Seikagaku 2001; 73:1297-307. [PMID: 11831025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/17/2023]
Affiliation(s)
- M Morishima-Kawashima
- Department of Neuropathology, Faculty of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033
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Stronge VS, Saito Y, Ihara Y, Williams DB. Relationship between calnexin and BiP in suppressing aggregation and promoting refolding of protein and glycoprotein substrates. J Biol Chem 2001; 276:39779-87. [PMID: 11514579 DOI: 10.1074/jbc.m107091200] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Calnexin (CNX) is a membrane protein of the endoplasmic reticulum that has been defined primarily as a lectin, yet is capable of functioning as a molecular chaperone with non-glycosylated proteins in vitro. Here, we assess the relative contributions of the oligosaccharide- and polypeptide-binding sites of CNX to its in vitro chaperone functions by comparing it with the Hsp70 chaperone of the endoplasmic reticulum, BiP. Both proteins were equally effective in preventing the aggregation of non-glycosylated citrate synthase, indicating that the polypeptide-binding site of CNX is capable of functioning at a level similar to that of Hsp70. However, when confronted with glycoprotein substrates, the lectin site of CNX provided a significant advantage over BiP in suppressing aggregation. CNX also cooperated with BiP and the J domain of Sec63p in the ATP-dependent refolding of glycoprotein and non-glycosylated substrates. The lectin site of CNX was essential for refolding of the glycoprotein. These findings reinforce the function of CNX as a bona fide chaperone and illustrate how its lectin site confers advantages relative to other chaperones when confronted with glycoprotein substrates.
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Affiliation(s)
- V S Stronge
- Department of Biochemistry, University of Toronto, Toronto, Ontario M5S 1A8, Canada
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Abstract
OBJECTIVE In order to elucidate whether or not genetic variations of TSC-22 (TGF [transforming growth factor]-beta-stimulated clone 22), which was originally identified as a TGF-beta-responsive leucine zipper protein in murine osteoblastic cells, are associated with type 2 diabetes, the genomic organization of the human TSC-22 gene was determined and the association between its polymorphisms and type 2 diabetes was examined. RESULTS The human TSC-22 gene spans approximately 5 kilobase pairs and is encoded in three exons. Two single nucleotide polymorphisms (SNPs) were identified in the coding region of the first exon, two other SNPs in the first intron, and one SNP in the putative promoter region. There were, however, no significant differences in the frequency of these polymorphisms between patients with type 2 diabetes and non-diabetic control subjects. CONCLUSION It is unlikely that the TSC-22 gene is a locus responsible for type 2 diabetes.
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Affiliation(s)
- F Sugawara
- Department of Metabolism and Clinical Nutrition, Graduate School of Medicine, Kyoto University
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Iida T, Kijima H, Urata Y, Goto S, Ihara Y, Oka M, Kohno S, Scanlon KJ, Kondo T. Hammerhead ribozyme against gamma-glutamylcysteine synthetase sensitizes human colonic cancer cells to cisplatin by down-regulating both the glutathione synthesis and the expression of multidrug resistance proteins. Cancer Gene Ther 2001; 8:803-14. [PMID: 11687904 DOI: 10.1038/sj.cgt.7700371] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2001] [Indexed: 02/04/2023]
Abstract
Multidrug resistance in cancer cells is often associated with an elevation in the concentration of glutathione (GSH) and the expression of gamma-glutamylcysteine synthetase (gamma-GCS), a rate-limiting enzyme for GSH. We constructed a hammerhead ribozyme against a gamma-GCS heavy subunit (gamma-GCSh) mRNA transcript and transfected it to human colonic cancer cells (HCT8DDP) resistant to cisplatin (CDDP). The effect of the ribozyme transfection on the drug resistance of cancer cells was studied. (a) Transfection of the ribozyme decreased the GSH level and the efflux of CDDP-GSH adduct, resulting in higher sensitivity of the cells to CDDP. (b) The transfection suppressed the expression of ATP-binding cassette (ABC) family of transporters such as MRP1, MRP2, and MDR1, and stimulated the expression of mutant p53. (c) An electrophoretic mobility shift assay showed that mutant p53 suppresses the SP1-DNA binding activity, suggesting that this mutant p53 is functional and it, in turn, suppresses the expression of ABC transporters. Collectively, transfection of anti-gamma-GCSh ribozyme reduced the synthesis of GSH and the expression of ABC transporters, which causes an increase in the sensitivity of cancer cells to anticancer drugs. Suppression of the SP1-DNA binding activity by p53 may be a factor of down-regulation of ABC transporters.
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Affiliation(s)
- T Iida
- Department of Biochemistry and Molecular Biology in Disease, Atomic Bomb Disease Institute, Nagasaki University School of Medicine, Nagasaki 852-8523, Japan
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Utsunomiya I, Ren J, Taguchi K, Ariga T, Tai T, Ihara Y, Miyatake T. Immunohistochemical detection of verotoxin receptors in nervous system. Brain Res Brain Res Protoc 2001; 8:99-103. [PMID: 11673091 DOI: 10.1016/s1385-299x(01)00091-5] [Citation(s) in RCA: 9] [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] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Verotoxin receptor is a globotriaosylceramide (Gb3) present on vascular endothelial cells, in which the toxin causes hemolytic uremic syndrome. We established a sensitive method of immunohistochemical staining in serial sections using monoclonal antibodies (mAbs) against verotoxin and glycolipids that includes Gb3 and galactosylGb3 (GalGb3). With it, we showed co-localization of the verotoxin receptor and Gb3 in dorsal root ganglia (DRG) of humans, rabbits, rats and mice. We also used a very simple method to identify the presence of lipofuscin-like autofluorescence which complicates fluorescence microscopy observation of aged human nervous tissues.
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Affiliation(s)
- I Utsunomiya
- Department of Neuroscience, Showa Pharmaceutical University, 3-3165 Higashitamagawagakuen, Machida, 194-8543, Tokyo, Japan
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Gu Y, Misonou H, Sato T, Dohmae N, Takio K, Ihara Y. Distinct intramembrane cleavage of the beta-amyloid precursor protein family resembling gamma-secretase-like cleavage of Notch. J Biol Chem 2001; 276:35235-8. [PMID: 11483588 DOI: 10.1074/jbc.c100357200] [Citation(s) in RCA: 242] [Impact Index Per Article: 10.5] [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: 11/06/2022] Open
Abstract
The intramembrane cleavage of beta-amyloid precursor protein by gamma-secretase is the final step in the generation of amyloid beta-protein. A 59- or 57-residue C-terminal fragment called CTFgamma is produced concomitantly. Putative CTFgamma generated in rat brain membrane preparations was purified and sequenced. Instead of CTFgamma, shorter 50- and 49-residue fragments were identified. In addition, we found similar C-terminal fragments of beta-amyloid precursor-like proteins 1 and 2; these were also cleaved at corresponding sites. This newly identified cleavage occurs at a site two to five residues inside the cytoplasmic membrane boundary, which is very similar to gamma-secretase-like cleavage of Notch 1.
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Affiliation(s)
- Y Gu
- Department of Neuropathology, Faculty of Medicine, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan
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Miyasaka T, Morishima-Kawashima M, Ravid R, Kamphorst W, Nagashima K, Ihara Y. Selective deposition of mutant tau in the FTDP-17 brain affected by the P301L mutation. J Neuropathol Exp Neurol 2001; 60:872-84. [PMID: 11556544 DOI: 10.1093/jnen/60.9.872] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.8] [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: 11/13/2022] Open
Abstract
Frontotemporal dementia and parkinsonism linked to chromosome 17 (FTDP-17) is a familial neurological disorder exhibiting autosomal dominant inheritance. Linkage analyses have led to the identification of many exonic and intronic mutations in the tau gene in affected families. Because FTDP- 17 causes extensive neuronal loss and intracellular tau deposits in affected regions, investigation of this disease should provide an important insight into the significance of tau deposits leading to neurodegeneration. Using site-specific antibodies that distinguish between wild-type and mutant tau, we have analyzed the proportions of wild-type and mutant tau in the soluble and insoluble fractions of the P301L brain. Western blotting showed that mutant tau was selectively deposited in the Sarkosyl-insoluble fraction. Consistent with this, immunocytochemistry showed that intraneuronal tau deposits consisted exclusively of mutant tau. In one case in which abundant senile plaques occurred, in addition to mutant tau, small amounts of wild-type tau were also deposited. On the other hand, the protein levels of mutant tau in the soluble fraction were selectively decreased despite no detectable decrease in the levels of mutant tau mRNA.
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Affiliation(s)
- T Miyasaka
- Department of Neuropathology, Faculty of Medicine, University of Tokyo, Japan
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Morishima-Kawashima M, Saido TC, Ihara Y. [Alzheimer's disease and the proteins]. Tanpakushitsu Kakusan Koso 2001; 46:1798-804. [PMID: 11579581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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