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Toru S, Kanouchi T, Yokota T, Yagi Y, Machida A, Kobayashi T. Utility of Autonomic Function Tests to Differentiate Dementia with Lewy Bodies and Parkinson Disease with Dementia from Alzheimer Disease. Eur Neurol 2017; 79:27-32. [DOI: 10.1159/000484409] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 10/18/2017] [Indexed: 11/19/2022]
Abstract
Objective: We studied autonomic disturbance in patients with dementia with Lewy bodies (DLB), Parkinson disease with dementia (PDD), Alzheimer disease (AD), to determine whether autonomic function tests can be used to distinguish these disorders. Methods: Autonomic function was tested in 56 patients with DLB, 37 patients with PDD, and 59 patients with AD by using the sympathetic skin response, coefficient of variation in R-R interval, the head-up tilt test, serum norepinephrine concentration, and 123I-meta-iodobenzylguanidine cardiac scintigraphy. Symptoms of autonomic dysfunction, such as constipation, urinary symptoms, and orthostatic hypotension, were also noted. Results: The groups did not differ on baseline characteristics other than those associated with Parkinsonism and dementia. All patients with DLB and PDD had some dysautonomia, whereas rates were much lower for patients with AD (19%). Significantly more DLB and PDD patients than AD patients showed abnormalities on autonomic function tests. Conclusions: Autonomic function tests might be quite useful to distinguish DLB and PDD from AD.
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Yokote H, Kamata T, Toru S, Sanjo N, Yokota T. Brain volume loss is present in Japanese multiple sclerosis patients with no evidence of disease activity. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Katayama Y, Saitou K, Yokote H, Toru S. Central nervous system involvement in CD20-positive primary peripheral T-cell lymphoma, not otherwise specified. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Toru S, Toshiki U, Yuki K, Kazuyuki S, Hiroaki Y, Katsuiku H, Masanobu K. Heterogeneous neuropathologies in clinically diagnosed DLB. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Saito K, Shima S, Yamada H, Katayama Y, Yokote H, Mutoh T, Toru S. Anti-neutral glycolipids antibody-positive three men of combined central and peripheral demyelination mimicking Encephaloradiculoneuropathy phenotype. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Uchihara T, Sango M, Takubo H, Komori T, Yoshimura N, Nohara C, Homma T, Wada A, Kodama M, Orimo S, Isozaki E, Kitagawa M, Hirokawa K, Toru S. Reduced MIBG uptake under relative preservation of cardiac sympathetic nerve in four autopsy patients of CBD-tau without lewy pathology. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Kojima K, Shigeki H, Keisuke W, Sonoko M, Sagiri I, Ai I, Yoshikazu N, Toru S, Koji M, Takashi U, Koutaro Y, Satoshi K. Altered grey matter brain volume in patients with painful diabetic peripheral neuropathy; A voxel-based morphometry study. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Yokote H, Kamata T, Toru S, Sanjo N, Yokota T. Serum retinol levels are associated with brain volume loss in patients with multiple sclerosis. Mult Scler J Exp Transl Clin 2017; 3:2055217317729688. [PMID: 28932409 PMCID: PMC5598802 DOI: 10.1177/2055217317729688] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 08/13/2017] [Indexed: 11/24/2022] Open
Abstract
Background Although predicting future brain volume loss (BVL) in patients with multiple sclerosis (MS) is important, studies have shown only a few biomarkers that can predict BVL. Objectives The aim of this study is to elucidate the association between longitudinal BVL and serum biomarker candidates. Methods This single-center, retrospective, observational study intended to cover MS patients during January 2008 to March 2016. Patients who underwent brain MRI two times at intervals of >24 months and had a blood test to measure biomarker candidates at the time or within three months of the MRI scan were included. Evaluation of brain volume was performed by using SIENAX and SIENA in the FMRIB software library. Results Twenty-three patients with MS were included in this study. We found that serum retinol binding protein (RBP) levels were significantly correlated with percentage brain volume change (PBVC) (p = 0.0079). Furthermore, best subset selection of multiple linear regression models identified baseline normalized brain volume and serum RBP as the best predictors of PBVC. Conclusions Our study shows that lower serum retinol levels are associated with greater longitudinal BVL and that serum RBP and can be a predictor of BVL.
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Saito K, Watanabe T, Toru S. Multiple Hemorrhagic Cerebral Cortical Lesions in Neuro-Behçet's Disease. Intern Med 2017; 56:2377-2378. [PMID: 28794376 PMCID: PMC5635319 DOI: 10.2169/internalmedicine.8632-16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Yamada H, Saito K, Hokari M, Toru S. Brain biopsy to aid diagnosis of neuro-Behçet's disease: Case report and literature review. eNeurologicalSci 2017; 8:2-4. [PMID: 29260026 PMCID: PMC5730892 DOI: 10.1016/j.ensci.2017.06.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Revised: 06/01/2017] [Accepted: 06/02/2017] [Indexed: 11/24/2022] Open
Abstract
Central nervous system involvement in Behçet's disease (Neuro-Behçet's disease: NBD) has been reported to present diverse clinical and pathological manifestations. A few cases presenting with neurological symptoms preceding other systemic features are difficult to be diagnosed. Here we suggest the clinical benefit of brain biopsy with a case of NBD initially presenting neurological symptoms. We report one case of neuro-Behçet's disease (NBD). He presented with neurological symptoms without other preceding features. Brain biopsy was useful to diagnose him with NBD. Clinical utility of brain biopsy in NBD is suggested.
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Saito K, Doi M, Karikusa M, Sakata K, Sasaguri H, Toru S. Cerebral infarction in right pons during the course of mobile mitral annular calcification-related calcified amorphous tumor during a long time hemodialysis. Rinsho Shinkeigaku 2016; 56:580-3. [PMID: 27477571 DOI: 10.5692/clinicalneurol.cn-000895] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We report here a 70 year-old male on maintenance hemodialysis who presented non-paralytic pontine exotropia. Brain MRI showed new right pons infarct. Transthoracic and transesophageal echocardiography revealed a mobile calcification at posterior mitral leaflet with rapid growing compared to 14 days ago. Neurological symptoms disappeared at least 10 days by a treatment with aspirin. Calcification reduced by a follow-up transthoracic echocardiography after 90 days from the beginning of neurological symptoms. We diagonosed him with cerebral infarction during the course of mobile mitral annular calcification-related calcified amorphous tumor. Mobile mitral annular calcification-related calcified amorphous tumor would be a cause of cerebral infarction, we need to be careful to check a transthoracic echocardiography regularly because of necessity.
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Toru S, Uchihara T, Isozaki E, Orimo S. [A Case of Inspiration Stridor in Dementia with Lewy Bodies]. BRAIN AND NERVE = SHINKEI KENKYU NO SHINPO 2016; 68:667-77. [PMID: 27279166 DOI: 10.11477/mf.1416200460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Takahashi M, Ikemura M, Oka T, Uchihara T, Wakabayashi K, Kakita A, Takahashi H, Yoshida M, Toru S, Kobayashi T, Orimo S. Quantitative correlation between cardiac MIBG uptake and remaining axons in the cardiac sympathetic nerve in Lewy body disease. J Neurol Neurosurg Psychiatry 2015; 86:939-44. [PMID: 25935891 DOI: 10.1136/jnnp-2015-310686] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Accepted: 04/12/2015] [Indexed: 11/04/2022]
Abstract
OBJECTIVES Reduced cardiac meta-iodobenzylguanidine (MIBG) uptake and loss of cardiac sympathetic axons, as its possible anatomical substrate, were both recognised in Lewy body disease (LBD), while their direct correlation has so far remained speculative. Increasing availability of autopsy-confirmed cases of LBD prompted us to quantify residual cardiac sympathetic axons to establish their relationship to cardiac MIBG uptake. METHODS We collected cardiac tissue samples from 23 patients with autopsy-confirmed LBD and two non-LBD control patients who underwent (123)I-MIBG cardiac scintigraphy in life. Samples of the left ventricular anterior wall were stained with anti-tyrosine hydroxylase (TH) and anti-neurofilament (NF) antibodies as markers of cardiac nerve axons. We quantified the immunolabelled areas and assessed their correlation to standardised heart to mediastinum (H/M) ratios of (123)I-MIBG cardiac scintigraphy. RESULTS Cardiac MIBG uptake in the early and delayed phases was reduced in 90.9% and 95.7% of patients with LBD, respectively. The area of TH-immunoreactive axons correlated significantly with the H/M ratio in the early (p=0.036) as well as in the delayed (p=0.018) phases. The area of NF-immunoreactive axons also correlated with the H/M ratio in the early (p=0.003) as well as in the delayed (p=0.001) phases. CONCLUSIONS Tight quantitative correlation between cardiac (123)I-MIBG uptake and corresponding loss of sympathetic axons in LBD, as established for the first time by this study, provides a scientific basis to confirm the reliability of MIBG cardiac scintigraphy as a powerful clinical tool to detect loss of these axons as a biomarker for the presence of Lewy body disease.
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Toru S, Uchihara T, Hara M, Mae S, Toru M, Hirokawa K, Endo T, Sugawara E, Kitagawa M, Kobayashi T. An Autopsy Case of Dementia with Lewy Bodies with Vocal Cord Abductor Paralysis. Eur Neurol 2015; 74:186-7. [DOI: 10.1159/000441448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 10/04/2015] [Indexed: 11/19/2022]
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Cetin Z, Sanhal C, Guzel BN, Toru S, Yakut S. Prenatal diagnosis of isolated ventriculomegaly as a second trimester manifestation of de novo terminal 6q25 deletion. GENETIC COUNSELING (GENEVA, SWITZERLAND) 2013; 24:427-429. [PMID: 24551986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
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Osman O, Toru S, Dumas-Bouchiat F, Dempsey NM, Haddour N, Zanini LF, Buret F, Reyne G, Frénéa-Robin M. Microfluidic immunomagnetic cell separation using integrated permanent micromagnets. BIOMICROFLUIDICS 2013; 7:54115. [PMID: 24396526 PMCID: PMC3815048 DOI: 10.1063/1.4825395] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Accepted: 10/02/2013] [Indexed: 05/03/2023]
Abstract
In this paper, we demonstrate the possibility to trap and sort labeled cells under flow conditions using a microfluidic device with an integrated flat micro-patterned hard magnetic film. The proposed technique is illustrated using a cell suspension containing a mixture of Jurkat cells and HEK (Human Embryonic Kidney) 293 cells. Prior to sorting experiments, the Jurkat cells were specifically labeled with immunomagnetic nanoparticles, while the HEK 293 cells were unlabeled. Droplet-based experiments demonstrated that the Jurkat cells were attracted to regions of maximum stray field flux density while the HEK 293 cells settled in random positions. When the mixture was passed through a polydimethylsiloxane (PDMS) microfluidic channel containing integrated micromagnets, the labeled Jurkat cells were selectively trapped under fluid flow, while the HEK cells were eluted towards the device outlet. Increasing the flow rate produced a second eluate much enriched in Jurkat cells, as revealed by flow cytometry. The separation efficiency of this biocompatible, compact micro-fluidic separation chamber was compared with that obtained using two commercial magnetic cell separation kits.
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Toru S, Murata T, Ohara M, Ishiguro T, Kobayashi T. Paradoxical cerebral embolism with patent foramen ovale and deep venous thrombosis caused by a massive myoma uteri. Clin Neurol Neurosurg 2012; 115:760-1. [PMID: 22898091 DOI: 10.1016/j.clineuro.2012.06.042] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2011] [Revised: 06/27/2012] [Accepted: 06/30/2012] [Indexed: 11/16/2022]
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Toru S, Ohara M, Hane Y, Ishiguro T, Kobayashi T. Successful steroid treatment for recurrent Miller Fisher syndrome. Muscle Nerve 2012; 45:763-4. [PMID: 22499109 DOI: 10.1002/mus.23257] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Toru S, Ichihara K, Uchihara T, Orimo T. [An 87-year-old women with the clinical diagnosis of dementia with Lewy bodies without α-synuclein deposition]. BRAIN AND NERVE = SHINKEI KENKYU NO SHINPO 2012; 64:573-582. [PMID: 22570072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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Toru S, Frenea-Robin M, Haddour N, Buret F. Tunable and label-free bacteria alignment using standing surface acoustic waves. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2012; 2012:4998-5001. [PMID: 23367050 DOI: 10.1109/embc.2012.6347115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This paper describes a new technique for focusing bacteria in a microfluidic channel and subsequently controlling their trajectory. Bacteria alignment is obtained using standing surface acoustic waves (SSAW) generated by two interdigitated transducer electrodes (IDTs) patterned on a piezoelectric wafer. The bacteria are focused in the standing wave pressure nodes, separated by half a wavelength, the electrode geometry and applied voltage frequency being chosen accordingly. Interestingly, the position of a pressure node can be modulated by introducing a phase shift between the electrical signals applied to both IDTs. The bacteria, trapped in this node, follow it and can therefore be deflected. This technique works with label-free bacteria in their culture medium and induces low power consumption, which is very interesting for portable devices.
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Suzuki M, Uchihara T, Toru S, Bae Y, Igari T, Kitagawa M, Uchiyama S, Hirokawa K, Kobayashi T. Correlative magnetic resonance imaging and autopsy findings in a patient with coagulation necrosis treated with tissue plasminogen activator. J Stroke Cerebrovasc Dis 2011; 21:512-4. [PMID: 22000524 DOI: 10.1016/j.jstrokecerebrovasdis.2010.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2010] [Revised: 10/01/2010] [Accepted: 10/10/2010] [Indexed: 10/16/2022] Open
Abstract
Coagulation necrosis is a peculiar type of ischemic necrosis that is characterized by firm, eosinophilic parenchyma with recognizable cell outlines without massive glial reactions. This is an autopsy report of coagulation necrosis 6 months after thrombolytic tissue plasminogen activator therapy against massive cerebral embolism in an 84-year-old man with atrial fibrillation.
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Okuno K, Ohara M, Ishiguro T, Sato T, Yamazaki T, Toru S, Mae S, Kobayashi T, Ohno R. [Case report; Improvement of cognitive function and abolisnment of epileptic disharges after the resection of lung cancer (large cell neuroendocrine carcimona)]. NIHON NAIKA GAKKAI ZASSHI. THE JOURNAL OF THE JAPANESE SOCIETY OF INTERNAL MEDICINE 2011; 100:3041-3043. [PMID: 22175149 DOI: 10.2169/naika.100.3041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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Toru S, Matumura K, Kawaguchi R, Kobayashi T, Irie T. Widespread cortical lesions on diffusion-weighted imaging in acute portal systemic shunt encephalopathy caused by primary biliary cirrhosis. AJNR Am J Neuroradiol 2011; 32:E55-6. [PMID: 21233224 DOI: 10.3174/ajnr.a2466] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Toru S, Uchihara T, Akashi T, Kobayashi T. Minimal cytological changes of progressive supranuclear palsy type in clinically possible progressive supranuclear palsy. Eur Neurol 2010; 63:122-5. [PMID: 20110714 DOI: 10.1159/000277610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2009] [Accepted: 11/17/2009] [Indexed: 11/19/2022]
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Toru S, Uchihara T, Takahashi M, Ichihara K, Endo T, Kurata M, Kitagawa M, Hirokawa K, Kobayashi T. Depletion or Preservation of Cardiac Sympathetic Nerve – An Autopsy-Verified Contrast in Two Cases of Alzheimer’s Disease with or without Lewy Bodies. Eur Neurol 2010; 64:129-33. [DOI: 10.1159/000316772] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2010] [Accepted: 06/07/2010] [Indexed: 11/19/2022]
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