1
|
Hanaoka Y, Inomata Y, Koyama JI, Nakamura T, Kitamura S, Yamazaki D, Horiuchi T. Use of the Simmons guiding sheath via left transradial access as a feasible strategy for neurointerventions in patients with an aberrant right subclavian artery. J Neurointerv Surg 2023; 15:1165. [PMID: 37336638 DOI: 10.1136/jnis-2023-020539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 05/09/2023] [Indexed: 06/21/2023]
|
2
|
Inomata Y, Hanaoka Y, Koyama JI, Yamazaki D, Kitamura S, Nakamura T, Horiuchi T. Left Transradial Access Using a Radial-Specific Neurointerventional Guiding Sheath for Coil Embolization of Anterior Circulation Aneurysm Associated With the Aberrant Right Subclavian Artery: Technical Note and Literature Review. World Neurosurg 2023; 178:126-131. [PMID: 37506842 DOI: 10.1016/j.wneu.2023.07.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 07/21/2023] [Indexed: 07/30/2023]
Abstract
BACKGROUND Aberrant right subclavian artery (ARSA) is a rare condition, but the most common anomaly of the aortic arch. Although neurointerventions via transradial access (TRA) are becoming increasingly popular worldwide, transradial carotid cannulation has been extremely challenging in patients with an ARSA. Herein, we present a case of ARSA-associated anterior communicating artery (ACoA) aneurysm that was successfully treated with a radial-specific 6F Simmons guiding sheath via left TRA. We also review the relevant literature. METHODS A 68-year-old-woman who was diagnosed as having an ARSA-associated ACoA aneurysm underwent simple coiling via left TRA. After the 6F Simmons guiding sheath was engaged into the right common carotid artery using the pull-back-technique, transradial quadraxial system (6F Simmons guiding sheath/6F intermediate catheter/3.2F intermediate catheter/coil-delivery microcatheter) was implemented. RESULTS Simple coiling of the aneurysm was successfully achieved without catheter kinking or system instability. The postprocedural course was uneventful. A follow-up magnetic resonance angiography showed no evidence of recanalization 1 years 9 months after the procedure. CONCLUSIONS Transradial anterior circulation intervention has been rarely used for patients with an ARSA due to unfavorable catheter trajectory. Left TRA using the 6F Simmons guiding sheath is a useful treatment option to address anterior circulation interventions for patients with an ARSA. Preoperative diagnosis of ARSA is necessary for the application of our method.
Collapse
|
3
|
Hanaoka Y, Koyama JI, Nakamura T, Kitamura S, Abe D, Yamazaki D, Inomata Y, Horiuchi T. Smaller diameter sheaths are required to safely perform transradial neurointerventions. Interv Neuroradiol 2023:15910199231201517. [PMID: 37697723 DOI: 10.1177/15910199231201517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/13/2023] Open
Abstract
We read with great interest the paper titled "Transradial access with Simmons guiding catheter for carotid artery stenting: Feasibility and procedural complications in a single-center experience" by Muszynski et al. The authors concluded that a transradial carotid artery stenting (CAS) using a Glidesheath Slender 7F Introducer/7F Envoy Simmons 2 catheter system was feasible with a high procedural success rate and low access site complication rate. We completely agree with their conclusions. In this study, large-diameter sheaths were used. Large sheaths increase the risk of developing radial artery spasms. Interventionalists must be aware that radial artery spasm can not only require an access crossover, but can also cause severe access site complications, such as eversion or avulsion of the radial artery, catheter/sheath entrapment, and compartment syndrome. A 6F Simmons guiding sheath has a smaller outer diameter than the Glidesheath Slender 7F Introducer does, and it offers a large-bore working channel compatible with a 10-mm diameter Wallstent and Acculink. Transradial CAS with a 6F Simmons guiding sheath has previously yielded a high procedural success rate without serious access site complications. Nevertheless, we believe that a further decrease in the sheath diameter is required to safely perform transradial neurointerventions in more patients.
Collapse
|
4
|
Hanaoka Y, Inomata Y, Koyama JI, Nakamura T, Kitamura S, Horiuchi T. Letter: Transradial Flow-Diverting Stent Placement Through an Arteria Lusoria: 2-Dimensional Operative Video. Oper Neurosurg (Hagerstown) 2023; 25:e116-e117. [PMID: 37195058 DOI: 10.1227/ons.0000000000000771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 03/23/2023] [Indexed: 05/18/2023] Open
|
5
|
Suzuki Y, Hanaoka Y, Inomata Y, Kamijo T, Fujii Y, Ogiwara T, Horiuchi T. A rare pure intraventricular hemorrhage caused by ruptured internal carotid artery-anterior choroidal artery aneurysm: a case report and literature review. NAGOYA JOURNAL OF MEDICAL SCIENCE 2023; 85:343-349. [PMID: 37346826 PMCID: PMC10281831 DOI: 10.18999/nagjms.85.2.343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 04/15/2022] [Indexed: 06/23/2023]
Abstract
Although intraventricular hemorrhage (IVH) frequently develops secondary to intraparenchymal or subarachnoid hemorrhage, pure IVH-non-traumatic spontaneous intracranial hemorrhage confined to the cerebral ventricular system-is rare. Moreover, pure IVH caused by ruptured proximal aneurysm is an extremely rare but life-threatening condition. Herein, we present a case of pure IVH due to a ruptured internal carotid artery -anterior choroidal artery (ICA-AChA) aneurysm and review related literature. A 77-year-old man presenting with altered mental status was hospitalized due to a massive pure IVH with ventriculomegaly. The patient was conservatively managed because his consciousness level improved. On the following day, computed tomography angiography revealed a right ICA-AChA aneurysm embedded in the temporal lobe adjacent to the anterior part of the inferior horn of the lateral ventricle, which was consistent with the hemorrhagic origin. Coil embolization of the aneurysm was successfully performed, and the postprocedural course was uneventful. To date, only a few cases have described pure IVH caused by a ruptured proximal aneurysm. If the ruptured proximal aneurysm remains unnoticed, catastrophic rehemorrhage may occur. Aneurysm obliteration should precede the treatment of acute hydrocephalus. Neurosurgeons/neurointerventionalists must be aware about pure IVH caused by a ruptured proximal aneurysm even if it rarely occurs.
Collapse
|
6
|
Inomata Y, Hanaoka Y, Fujii Y, Ogiwara T, Horiuchi T. Sequential Development of Putaminal Hemorrhage and Corona Radiata Infarction in the Same Lenticulostriate Arterial Territory. ACTA MEDICA OKAYAMA 2022; 76:329-332. [PMID: 35790364 DOI: 10.18926/amo/63743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Putaminal hemorrhage is a common type of spontaneous cerebral hemorrhage. However, to our knowledge, there have been no reports of sequential cerebral hemorrhage and infarction in the same perforating arterial territory. Herein, we present the first reported case of the sequential development of putaminal hemorrhage and corona radiata infarction in the same lenticulostriate arterial (LSA) territory. Early intensive blood pressure lowering treatment may have aggravated ischemic damage. If a patient presents with motor weakness that cannot be explained by putaminal hemorrhage, the sequential development of corona radiata infarction in the same LSA territory should be ruled out.
Collapse
|
7
|
Ogiwara T, Fujii Y, Hanaoka Y, Kitamura S, Kuwabara H, Funato K, Inomata Y, Yamazaki D, Yamazaki K, Murase H, Yokota A, Hardian RF, Goto T, Hongo K, Horiuchi T. Intraoperative Image-Guided Surgery for Gliomas in the Smart Cyber Operating Theater (SCOT®): A Preliminary Clinical Application. World Neurosurg 2022; 160:e314-e321. [PMID: 35026453 DOI: 10.1016/j.wneu.2022.01.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 01/03/2022] [Accepted: 01/04/2022] [Indexed: 01/01/2023]
Abstract
BACKGROUND Various devices exist for glioma image-guided surgery to improve tumor resection. These devices work as standalone units, making the flow of operative information complicated and disjointed. A novel networked operating room, the "Smart Cyber Operating Theater (SCOT®)," has been developed, integrating standalone medical devices using the "OPeLiNK®" communication interface. Herein, we report and evaluate the impact of the SCOT® for glioma surgery and our initial experiences. METHODS Patients with gliomas who underwent tumor resection in the SCOT® between July 2018 and June 2021 were retrospectively reviewed. Various types of intraoperative information were integrated, managed, and shared with the surgical strategy desk using the OPeLiNK®. Patients' demographics, tumor characteristics, treatment details, and outcomes were obtained. The impact of the SCOT® system was evaluated. RESULTS Twenty-seven patients with a mean age of 48.6 years (range 13 - 88 years) met the inclusion criteria. We successfully completed all the surgical procedures using the SCOT®. The mean operation time was 420.6 minutes (225 - 667 min). Gross total resection was accomplished in 13 patients (48.1%), subtotal resection in 4 (14.8%), and partial resection in 10 (37.0%). The main surgeon in the operating room and other neurosurgeons at the strategy desk shared and discussed the information in real time during the procedures. CONCLUSIONS The use of the SCOT® was demonstrated to be safe and feasible in glioma surgery. This study suggests that the SCOT® may improve surgical outcomes and educational impact by sharing information in real-time with the strategy desk.
Collapse
|
8
|
Inomata Y, Hanaoka Y, Koyama JI, Suzuki Y, Fujii Y, Ogiwara T, Horiuchi T. Endovascular Revascularization with a Scoring Balloon for Carotid In-Stent Restenosis : Case Report and Literature Review. Clin Neuroradiol 2021; 31:1199-1204. [PMID: 33929560 DOI: 10.1007/s00062-021-01016-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 04/04/2021] [Indexed: 12/13/2022]
|
9
|
Yoshii D, Inomata Y, Komohara Y, Shimata K, Honda M, Hayashida S, Oya Y, Yamamoto H, Yamamoto H, Sugawara Y, Hibi T. Ki67 expression at Kasai portoenterostomy as a prognostic factor in patients with biliary atresia. BJS Open 2020; 4:873-883. [PMID: 32543770 PMCID: PMC7528526 DOI: 10.1002/bjs5.50308] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 05/04/2020] [Indexed: 11/27/2022] Open
Abstract
Background Biliary atresia is a rare paediatric biliary obliteration disease with unknown aetiology, and is the most common indication for paediatric liver transplantation (LT). However, no consensus for predicting Kasai portoenterostomy (KP) outcomes using liver histological findings exists. Ki67 is a popular biomarker for measuring and monitoring cellular proliferation. Methods Ki67 (clone, MIB‐1) liver parenchyma expression was measured by immunohistochemical staining of samples from living donors and patients with biliary atresia to assess its value in predicting outcomes after
KP. Results Of 35 children with biliary atresia, 13 were native liver survivors (NLS), 17 were non‐NLS, and five had primary LT. The median proportion of Ki67 immunostained areas in donors and patients with biliary atresia at KP was 0·06 and 0·99 per cent respectively. Univariable analysis identified a high proportion of Ki67 areas, high Ki67 cell numbers and high Ki67‐positive/leucocyte common antigen‐positive cell numbers at KP as significant predictors of poor native liver survival after KP (hazard ratio 9·29, 3·37 and 12·17 respectively). The proportion of Ki67 areas in the non‐NLS group was significantly higher than that in the NLS group (1·29 versus 0·72 per cent respectively; P = 0·001), and then decreased at LT (0·32 per cent versus 1·29 per cent at KP; P < 0·001). Conclusion This study has demonstrated the clinical data and time course of Ki67 expression in patients with biliary atresia. High Ki67 expression at KP may be an important predictor of native liver survival following the procedure.
Collapse
|
10
|
Inomata Y, Ohizumi T, Saito T, Morohashi M, Yamashita N, Takahashi M, Sase H, Takahashi K, Kaneyasu N, Fujihara M, Iwasaki A, Nakagomi K, Shiroma T, Yamaguchi T. Estimating transboundary transported anthropogenic sulfate deposition in Japan using the sulfur isotopic ratio. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 691:779-788. [PMID: 31326801 DOI: 10.1016/j.scitotenv.2019.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 06/30/2019] [Accepted: 07/01/2019] [Indexed: 06/10/2023]
Abstract
High emissions of air pollutants from Northeast Asia are strongly influenced by air quality as well as by ecosystems. This study investigated the spatiotemporal variations in the sulfur isotopic ratio (δ34S) in atmospheric deposition at eleven monitoring stations in Japan from 2011 to 2016 and estimated the amount of transboundary transported anthropogenic sulfate (TRB) deposition using mass balance calculations. The δ34S of sulfate in precipitation ranged from -0.42 to +22.7‰. Sea salt (SS), TRB, and domestic anthropogenic sources (DOM) were the dominant sources of sulfate deposition in Japan. TRB sulfate deposition was largest on the Sea of Japan side, with an annual average value of 1.5 ± 0.3-6.9 ± 0.5 mg m-2 d-1 (36-44%), followed by Mt. Happo (4.5 ± 0.1 mg m-2 d-1; 88%), the Pacific Ocean side (1.5 ± 0.8, 4.3 ± 0.9 mg m-2 d-1; 24-50%), and the remote islands in the North Pacific Ocean (1.1 ± 0.2, 2.0 ± 0.8 mg m-2 d-1; 19-32%). TRB sulfate deposition on the Sea of Japan side was 2-12 times higher in winter and 1-2 times higher in summer than that of DOM. In contrast, TRB sulfate deposition on the Pacific Ocean side was 1.5-3 times higher in summer than in winter due to high precipitation levels. In Tokyo, the annual contribution from DOM sulfate deposition is approximately three times higher than that from TRB. Annual TRB sulfate deposition is lowest at Ogasawara at 1.1 ± 0.2 mg m-2 d-1, and the annual oceanic DMS contribution to sulfate deposition is high, accounting for 1.3 mg m-2 d-1 (20 ± 6%). The contribution of Asian dust was estimated to be 1-5.2 mg m-2 d-1(3-6%), which occurred in a single Asian dust event on the Sea of Japan side.
Collapse
|
11
|
Inomata Y, Aoyama M, Tsubono T, Tsumune D, Kumamoto Y, Nagai H, Yamagata T, Kajino M, Tanaka YT, Sekiyama TT, Oka E, Yamada M. Estimate of Fukushima-derived radiocaesium in the North Pacific Ocean in summer 2012. J Radioanal Nucl Chem 2018; 318:1587-1596. [PMID: 30546185 PMCID: PMC6267120 DOI: 10.1007/s10967-018-6249-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Indexed: 11/25/2022]
Abstract
Distributions of radiocaesium (134Cs and 137Cs) derived from the Tokyo Electric Power Company (TEPCO) Fukushima Dai-ichi Nuclear Power Plant (FNPP1) accident in the North Pacific Ocean in the summer of 2012 were investigated. We have estimated the radiocaesium inventory in the surface layer using the optimal interpolation analysis and the subducted amount into the central mode water (CMW) by using vertical profiles of FNPP1-134Cs and mass balance analysis as the first approach. The inventory of the 134Cs in the surface layer in the North Pacific Ocean in August-December 2012 was estimated at 5.1 ± 0.9 PBq on 1 October 2012, which corresponds to 8.6 ± 1.5 PBq when it was decay corrected to the date of the FNPP1 accident, 11 March 2011. It was revealed that 56 ± 10% of the released 134Cs into the North Pacific Ocean, which was estimated at 15.3 ± 2.6 PBq, transported eastward in the surface layer in 2012. The amount of 134Cs subducted in the CMW was estimated to be 2.5 ± 0.9 PBq based on the mass balance among the three domains of the surface layer, subtropical mode water, and CMW.
Collapse
|
12
|
Kadohisa M, Sugawara Y, Shimata K, Kawabata S, Narita Y, Uto K, Yoshii D, Hayashida S, Oya Y, Yamamoto H, Yamamoto H, Inomata Y, Hibi T. Duodenal Ulcer as a Postoperative Complication in the Donor in Living-Donor Liver Transplantation. Transplant Proc 2018; 50:1129-1131. [DOI: 10.1016/j.transproceed.2018.01.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Accepted: 01/22/2018] [Indexed: 02/06/2023]
|
13
|
Oya Y, Sugawara Y, Honda M, Yoshii D, Isono K, Hayashida S, Yamamoto H, Inomata Y. Living Donor Liver Transplantation for Progressive Familial Intrahepatic Cholestasis Type 1: Two Reported Cases. Transplant Proc 2018; 49:1123-1125. [PMID: 28583540 DOI: 10.1016/j.transproceed.2017.03.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND Progressive familial intrahepatic cholestasis type 1 (PFIC1) is an inherited disease characterized by cholestatic features. We report two patients with PFIC1 who underwent liver retransplantation. CASE REPORT One patient was a 3-year-old female who underwent liver transplantation for PFIC1. She presented with severe diarrhea and fatty liver, and went into liver failure. She therefore underwent liver retransplantation and external biliary diversion 8 years after the initial liver transplantation. The explanted liver was histologically diagnosed with chronic rejection. Her intractable diarrhea stopped after the retransplantation. She was diagnosed with a fatty liver 8 months after the retransplantation and died 4 years after retransplantation due to bleeding from an ileostomy. The other patient was a 3-year-old male. This patient underwent liver retransplantation due to liver cirrhosis caused by steatohepatitis 9 years after the initial liver transplantation. The biliary tract was not diverted. He also experienced severe diarrhea after the retransplantation and requires home parenteral nutrition due to an eating disorder. CONCLUSIONS Liver transplantation is the only treatment to resolve life-threatening issues due to PFIC1, but requires further improvement as a therapeutic modality.
Collapse
|
14
|
Takagi K, Miura K, Nakanuma S, Sakamoto S, Yamamoto H, Yagi T, Eguchi S, Ohta T, Wakai T, Ohtsuka M, Uemoto S, Kasahara M, Inomata Y. Six National University Consortium in Liver Transplant Professionals Training (SNUC-LT) Program in Japan. Transplant Proc 2018; 50:168-174. [DOI: 10.1016/j.transproceed.2017.11.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 10/09/2017] [Accepted: 11/03/2017] [Indexed: 10/18/2022]
|
15
|
Inomata Y, Miyate K, Goto Y, Higashio R, Hirose M, Sanbe A. P2625Bcl-2 associated athanogene 3 enhances alpha-B crystallin protein turnover via activation of autophagy in the heart. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
16
|
Inomata Y, Aoyama M, Tsubono T, Tsumune D, Hirose K. Spatial and temporal distributions of (134)Cs and (137)Cs derived from the TEPCO Fukushima Daiichi Nuclear Power Plant accident in the North Pacific Ocean by using optimal interpolation analysis. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2016; 18:126-136. [PMID: 26662211 DOI: 10.1039/c5em00324e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Optimal interpolation (OI) analysis was used to investigate the oceanic distributions of (134)Cs and (137)Cs released from the Tokyo Electric Power Company Fukushima Daiichi Nuclear Power Plant (FNPP1) accident. From the end of March to early April 2011, extremely high activities were observed in the coastal surface seawater near the FNPP1. The high activities spread to a region near 165°E in the western North Pacific Ocean, with a latitudinal center of 40°N. Atmospheric deposition also caused high activities in the region between 180° and 130°W in the North Pacific Ocean. The inventory of FNPP1-released (134)Cs in the North Pacific Ocean was estimated to be 15.3 ± 2.6 PBq. About half of this activity (8.4 ± 2.6 PBq) was found in the coastal region near the FNPP1. After 6 April 2011, when major direct releases ceased, the FNPP1-released (134)Cs in the coastal region decreased exponentially with an apparent half-time of about 4.2 ± 0.5 days and declined to about 2 ± 0.4 PBq by the middle of May 2011. Taking into account that the (134)Cs/(137)Cs activity ratio was about 1 just after release and was extremely uniform during the first month after the accident, the amount of (137)Cs released by the FNPP1 accident increased the North Pacific inventory of (137)Cs due to bomb testing during the 1950s and early 1960s by 20%.
Collapse
|
17
|
Mirendil H, Thomas EA, De Loera C, Okada K, Inomata Y, Chun J. LPA signaling initiates schizophrenia-like brain and behavioral changes in a mouse model of prenatal brain hemorrhage. Transl Psychiatry 2015; 5:e541. [PMID: 25849980 PMCID: PMC4462599 DOI: 10.1038/tp.2015.33] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 01/15/2015] [Accepted: 02/09/2015] [Indexed: 12/13/2022] Open
Abstract
Genetic, environmental and neurodevelopmental factors are thought to underlie the onset of neuropsychiatric disorders such as schizophrenia. How these risk factors collectively contribute to pathology is unclear. Here, we present a mouse model of prenatal intracerebral hemorrhage--an identified risk factor for schizophrenia--using a serum-exposure paradigm. This model exhibits behavioral, neurochemical and schizophrenia-related gene expression alterations in adult females. Behavioral alterations in amphetamine-induced locomotion, prepulse inhibition, thigmotaxis and social interaction--in addition to increases in tyrosine hydroxylase-positive dopaminergic cells in the substantia nigra and ventral tegmental area and decreases in parvalbumin-positive cells in the prefrontal cortex--were induced upon prenatal serum exposure. Lysophosphatidic acid (LPA), a lipid component of serum, was identified as a key molecular initiator of schizophrenia-like sequelae induced by serum. Prenatal exposure to LPA alone phenocopied many of the schizophrenia-like alterations seen in the serum model, whereas pretreatment with an antagonist against the LPA receptor subtype LPA1 prevented many of the behavioral and neurochemical alterations. In addition, both prenatal serum and LPA exposure altered the expression of many genes and pathways related to schizophrenia, including the expression of Grin2b, Slc17a7 and Grid1. These findings demonstrate that aberrant LPA receptor signaling associated with fetal brain hemorrhage may contribute to the development of some neuropsychiatric disorders.
Collapse
|
18
|
Kasahara M, Umeshita K, Inomata Y, Uemoto S. Long-term outcomes of pediatric living donor liver transplantation in Japan: an analysis of more than 2200 cases listed in the registry of the Japanese Liver Transplantation Society. Am J Transplant 2013; 13:1830-9. [PMID: 23711238 DOI: 10.1111/ajt.12276] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2013] [Revised: 03/10/2013] [Accepted: 03/29/2013] [Indexed: 01/25/2023]
Abstract
The Japanese Liver Transplantation Society (JLTS) was established in 1980 in order to characterize and follow trends in patient characteristics and graft survival among all liver transplant patients in Japan. This study analyzed the comprehensive factors that may influence the outcomes of pediatric patients who undergo living donor liver transplantation (LDLT) by evaluating the largest cohort in the world. Between November 1989 and December 2010, 2224 pediatric patients underwent LDLT in Japan. There were 998 male (44.9%) and 1226 female donors (55.1%) without donor mortalities related to transplant surgery. There were 946 male (42.5%) and 1278 female (57.5%) recipients with a median age of 4.0 years (range: 13 days to 17.9 years). Cholestatic liver disease was the leading indication for LDLT (n = 1649; 76.2%), followed by metabolic disorders (n = 194; 8.7%), acute liver failure (n = 192; 8.6%) and neoplastic liver disease (n = 66; 3.0%). The 1-, 5-, 10- and 20-year patient survival rates were 88.3%, 85.4%, 82.8% and 79.6%, respectively. Blood-type incompatibility, recipient age, etiology of liver disease and transplant era were found to be significant predictors of overall survival. We are able to achieve satisfactory long-term pediatric patient survival outcomes in the JLTS series without compromising the living donors.
Collapse
|
19
|
Inomata Y, Aoyama M, Tsumune D, Motoi T, Nakano H. Optimum interpolation analysis of basin-scale ¹³⁷Cs transport in surface seawater in the North Pacific Ocean. JOURNAL OF ENVIRONMENTAL MONITORING : JEM 2012; 14:3146-55. [PMID: 23117411 DOI: 10.1039/c2em30707c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
¹³⁷Cs is one of the conservative tracers applied to the study of oceanic circulation processes on decadal time scales. To investigate the spatial distribution and the temporal variation of ¹³⁷Cs concentrations in surface seawater in the North Pacific Ocean after 1957, a technique for optimum interpolation (OI) was applied to understand the behaviour of ¹³⁷Cs that revealed the basin-scale circulation of Cs ¹³⁷Cs in surface seawater in the North Pacific Ocean: ¹³⁷Cs deposited in the western North Pacific Ocean from global fallout (late 1950s and early 1960s) and from local fallout (transported from the Bikini and Enewetak Atolls during the late 1950s) was further transported eastward with the Kuroshio and North Pacific Currents within several years of deposition and was accumulated in the eastern North Pacific Ocean until 1967. Subsequently, ¹³⁷Cs concentrations in the eastern North Pacific Ocean decreased due to southward transport. Less radioactively contaminated seawater was also transported northward, upstream of the North Equatorial Current in the western North Pacific Ocean in the 1970s, indicating seawater re-circulation in the North Pacific Gyre.
Collapse
|
20
|
Yamashita T, Ando Y, Okamoto S, Misumi Y, Hirahara T, Ueda M, Obayashi K, Nakamura M, Jono H, Shono M, Asonuma K, Inomata Y, Uchino M. Long-term survival after liver transplantation in patients with familial amyloid polyneuropathy. Neurology 2012; 78:637-43. [DOI: 10.1212/wnl.0b013e318248df18] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
21
|
Obayashi K, Ueda M, Jono H, Yamashita T, Yazaki M, Kametani F, Ohya Y, Inomata Y, Ikeda S, Ando Y. Amyloid turnover after liver transplantation in FAP. Amyloid 2011; 18 Suppl 1:187-9. [PMID: 21838482 DOI: 10.3109/13506129.2011.574354070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
22
|
Yamashita T, Ando Y, Okamoto S, Yohei M, Hitahara T, Ueda M, Obayashi K, Nakamura M, Jono H, Asonuma K, Inomata Y, Uchino M. Effect of liver transplantation on the survival of patients with ordinary onset familial amyloid polyneuropathy in Japan. Amyloid 2011; 18 Suppl 1:185-6. [PMID: 21838481 DOI: 10.3109/13506129.2011.574354069] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
23
|
Fujimoto Y, Uemoto S, Inomata Y, Egawa H, Fujita S, Kawanami T, Tsuruyama T, Hayashi M, Kiuchi T, Asonuma K, Tanaka K. Small bowel transplantation using grafts from living-related donors. Two case reports. Transpl Int 2011. [DOI: 10.1111/j.1432-2277.2000.tb02015.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
24
|
Kiuchi T, Inomata Y, Uemoto S, Asonuma K, Egawa H, Fujita S, Hayashi M, Uryuhara K, Tanaka K. Evolution of living donor liver transplantation in adults: a single center experience. Transpl Int 2011. [DOI: 10.1111/j.1432-2277.2000.tb02002.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
25
|
Hirose K, Igarashi Y, Aoyama M, Inomata Y. Depositional behaviors of plutonium and thorium isotopes at Tsukuba and Mt. Haruna in Japan indicate the sources of atmospheric dust. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2010; 101:106-112. [PMID: 19804923 DOI: 10.1016/j.jenvrad.2009.09.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2009] [Revised: 09/02/2009] [Accepted: 09/02/2009] [Indexed: 05/28/2023]
Abstract
Monthly plutonium and thorium depositions at Tsukuba (28m asl) and Mt. Haruna (1370m asl) were measured during 2006 and 2007 (Jan 2006-Dec 2007 at Tsukuba, Nov 2006-Dec 2007 at Mt. Haruna). The monthly (239,240)Pu depositions ranged from 0.044 to 2.67mBq m(-2) at Tsukuba and from 0.05 to 0.9mBq m(-2) at Mt. Haruna during the measurement periods. Monthly (239,240)Pu deposition did not differ markedly between the two sites except in April 2007. Seasonal pattern of monthly (239,240)Pu depositions at both sites showed high in spring and low in summer, and typical of seasonal variations in northeastern Asia. Thorium deposition at Tsukuba was higher than that at Mt. Haruna except in May and June 2007. (230)Th/(232)Th activity ratios were used to partition deposition samples into locally and remotely derived fractions. The results revealed that a major proportion of total (239,240)Pu and Th deposits are derived from remote sources, especially in spring.
Collapse
|