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Simultaneous Presentation of Brainstem and Cerebellar Posterior Reversible Encephalopathy Syndrome With Acute Cerebral Infarction. Cureus 2023; 15:e34843. [PMID: 36919059 PMCID: PMC10008481 DOI: 10.7759/cureus.34843] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/05/2023] [Indexed: 02/12/2023] Open
Abstract
Posterior reversible encephalopathy syndrome (PRES) and cerebral infarction are both caused by hypertension, but they rarely occur together. If they do coexist, the selection of a management strategy is difficult because of their pathologic differences. Here, we present an uncommon case of brainstem and cerebellar PRES combined with acute lacunar infarction. For this patient, we used an aggressive blood pressure-lowering regimen during the acute phase of his condition. Once the cerebral edema caused by PRES began to improve, antiplatelet therapy was initiated. The treatment was ultimately successful, and the patient was discharged home. A return to work is now planned. Given the rarity of this combination of conditions and a lack of published evidence for management, our report will contribute to the literature concerning the treatment for this combination of conditions.
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1103P Drug-related pneumonitis induced by osimertinib as first-line treatment for EGFR-positive non-small cell lung cancer: A real-world setting. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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3
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Contribution of peptidyl prolyl isomerase (Pin1) to development of pulmonary hypertension via pulmonary vascular endothelial cell dysfunction. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
Endothelial dysfunction is thought to be a major contributor to overall pathogenesis of vasculopathy seen in pulmonary hypertension (PH), which is manifested by the impaired release of nitric oxide (NO) generated through endothelial nitric oxide synthase (eNOS) in endothelial cells. Activation of human eNOS is regulated by phosphorylation at multiple sites including Thr33 and Ser114, which residues are followed by Pro. The peptidyl isomerase Pin1 specifically isomerizes the phospho-protein having Ser/Thr-Pro bond and regulates their activity. Pin1 is involved in proliferation, cell cycle, and apoptosis in cancer, by isomerizing some functional molecules such as JNK, JUN, cyclin D, BAX, etc. However, it is controversial whether direct interaction of Pin1 with eNOS and how eNOS activity is altered by Pin1, especially in PH.
Purpose
We aimed to clarify whether Pin1 contributes to the PH development using Pin1 knockout mice and Pin1 affects the expression of phosphorylated eNOS (p-eNOS) molecule and pulmonary arterial endothelial cell (PAEC) apoptosis.
Methods and results
Wild (WT) and Pin1-deficient mice (KO) were exposed to hypoxia (10% O2) or normoxia for 3 weeks to generate hypoxia-induced PH. Hypoxia-inducible factor (HIF1α) expression in lungs was significantly enhanced in WT-hypoxia (WH, n=6) and KO-hypoxia (KH, n=6), suggesting that hypoxic response was certainly occurred in these mice. Pulmonary arterial pressure did not elevate in KH compared with KO-normoxia (KN, n=6) and WT-normoxia (WN, n=6), it was significantly increased only in WH (P<0.01), indicating that KO did not develop PH by hypoxia. The gain of RV weight was parallel to the increase of pulmonary arterial pressure. Western blot showed that p-eNOS expression in lungs was significantly decreased in WH compared to WN, however, the expression was not different between KH and KN. It suggests that Pin1 plays a regulatory role in p-eNOS expression in hypoxic response. In cultured PAECs, the expression of p-eNOS and eNOS was markedly increased by siRNA-mediated Pin1 knockdown. Immunoprecipitation study showed the possibility of Pin1 binding to p-eNOS molecule. Apoptosis evaluated by caspase-3/7 activity by fluorescent assay and cleaved caspase-3 expression by Western blot was significantly increased by Pin1 overexpression in PAECs; however, it was significantly decreased by Pin1 knockdown. Moreover, the exaggeration of apoptosis induced by doxorubicin was markedly increased by Pin1 overexpression compared with control in PAECs; however, it was clearly suppressed by Pin1 knockdown.
Conclusion
This study suggests that endogenous Pin1 contributes to the development of PH partly via the dysfunction of PAECs, that is, by the interference with p-eNOS expression and by the increase of apoptosis inducibility to external stimuli.
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): JSPS KAKENHI
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FSHD / OPMD / MYOTONIC DYSTROPHY. Neuromuscul Disord 2020. [DOI: 10.1016/j.nmd.2020.08.237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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5
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Serum immunoglobulin G antibody titer to Fusobacterium nucleatum is associated with unfavorable outcome after stroke. Clin Exp Immunol 2020; 200:302-309. [PMID: 32155293 DOI: 10.1111/cei.13430] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 03/05/2020] [Accepted: 03/05/2020] [Indexed: 12/21/2022] Open
Abstract
Stroke can be a cause of death, while in non-fatal cases it is a common cause of various disabilities resulting from associated brain damage. However, whether a specific periodontal pathogen is associated with increased risk of unfavorable outcome after stroke remains unknown. We examined risk factors for unfavorable outcome following stroke occurrence, including serum antibody titers to periodontal pathogens. The enrolled cohort included 534 patients who had experienced an acute stroke, who were divided into favorable (n = 337) and unfavorable (n = 197) outcome groups according to modified ranking scale (mRS) score determined at 3 months after onset (favorable = score 0 or 1; unfavorable = score 2-6). The associations of risk factors with unfavorable outcome, including serum titers of IgG antibodies to 16 periodontal pathogens, were examined. Logistic regression analysis showed that the initial National Institutes of Health stroke scale score [odds ratio (OR) = 1·24, 95% confidence interval (CI) = 1·18-1·31, P < 0·001] and C-reactive protein (OR = 1·29, 95% CI = 1·10-1·51, P = 0·002) were independently associated with unfavorable outcome after stroke. Following adjustment with those, detection of the antibody for Fusobacterium nucleatum ATCC 10953 in serum remained an independent predictor of unfavorable outcome (OR = 3·12, 95% CI = 1·55-6·29, P = 0·002). Determination of the antibody titer to F. nucleatum ATCC 10953 in serum may be useful as a predictor of unfavorable outcome after stroke.
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Resumption of Direct Oral Anticoagulants in Patients with Acute Spontaneous Intracerebral Hemorrhage. J Stroke Cerebrovasc Dis 2019; 28:104292. [DOI: 10.1016/j.jstrokecerebrovasdis.2019.07.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 06/07/2019] [Accepted: 07/10/2019] [Indexed: 11/17/2022] Open
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Upregulation of MIR-132-5P via nicotine enhances cell survival in PC12 cells by targeting the anti-apoptotic protein BCL-2. J Neurol Sci 2019. [DOI: 10.1016/j.jns.2019.10.1117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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9
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P6012Active selexipag metabolite MRE-269 increases endothelin receptors in pulmonary artery smooth muscle cells. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The pathology of pulmonary arterial hypertension (PAH) indicates the abnormal outgrowth of pulmonary artery smooth muscle cells (PASMCs) of the media. Abundant expression of endothelin 1 (ET-1) is observed in vessels of PAH, and has been considered to play a pathogenic role. There are several endothelin receptors including ETA, ETB. Compared to ETA, ETB mRNA is less expressed in PASMCs from control individuals, and is reported to be increased in those from PAH patients. However, how ETB is involved in PAH remains unclear. Selexipag, a non-prostanoid IP receptor agonist, was recently authorized for treating PAH. Compared to selexipag, the active metabolite MRE-269 has a higher affinity for the IP receptor. Initial combination therapy come to be accepted as a standard strategy for this disease, although the interaction of each drug has not been discussed enough.
Purpose
To assess the effect of selexipag on ET-1 receptors in PASMCs.
Methods
We stimulated purchased human PASMCs and endothelial cells by MRE-269 (300 nM), ET-1 (100 nM) or combination of them in vitro. Quantitative PCR was performed to quantify mRNA expressions. Cell proliferation was assessed by CCK8 cell proliferation assay kit. BQ123, A192621, bosentan was used as blocker against ETA, ETB, or both, respectively.
Results
In PASMCs, MRE-269 increased ETA and ETB expressions 2- and 7-fold, respectively. On the other hand, it increased ETB 1.2-fold in pulmonary artery endothelial cells; ETA was not detected in those cells. After pretreatment by MRE-269, ET-1 accelerated the proliferation of PASMCs. A192621 and bosentan abrogated this proliferation. In contrast, BQ123 did not abrogate it.
Conclusions
In PASMCs, active selexipag metabolite MRE-269 increases ETB more strongly than ETA, resulting in accelerated cell proliferation by ET-1 predominantly via ETB. These data call for further study focused on the choice of ET-1 receptor antagonists in the case of combination therapy with selexipag.
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REGISTRIES AND CARE OF NEUROMUSCULAR DISORDERS. Neuromuscul Disord 2018. [DOI: 10.1016/j.nmd.2018.06.339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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11
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The dose of direct oral anticoagulants and outcomes of intracerebral hemorrhage: Preliminary findings. Clin Neurol Neurosurg 2018; 174:63-67. [PMID: 30216809 DOI: 10.1016/j.clineuro.2018.09.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 09/02/2018] [Accepted: 09/04/2018] [Indexed: 10/28/2022]
Abstract
OBJECTIVES The effect of a direct-acting oral anticoagulant (DOAC) dose on intracerebral hemorrhage (ICH) severity and outcome remains unclear. The aim of this study is to clarify the frequency of off-label dosing of DOAC treatments in ICH patients and compare clinical characteristics. PATIENTS AND METHODS We studied 43 patients with ICH who were treated with DOAC for nonvalvular atrial fibrillation before the onset of ICH. DOAC treatments were categorized into three groups based on the following doses: optimal dose, under-dose, and overdose. RESULTS Overall, 31 patients were optimally dosed, 10 were under-dosed, and 2 were overdosed. CHADS2 and CHA2DS2-VASc scores were the highest in the overdose group (median, 4, 6, respectively) and the lowest in the optimal dose group (median, 2, 4, respectively) (p = 0.006, p = 0.005, respectively). ICH severity measured using the National Institutes of Health Stroke Scale scores was the highest in the overdose group (median, 26.5) and the lowest in the under-dose group (median, 6.5) (p = 0.244). Larger initial hematoma volume was observed in the overdose group. The ratio of good outcome (modified Rankin Scale score ≤ 2) was higher in the under-dose group (40%) than the other groups, but this difference was not significant. CONCLUSION Our study shows only a few patients received overdosing of a DOAC before the onset of ICH, and they were associated with poorer functional outcomes. Conversely, under-dosing was associated with better functional outcomes than the other groups.
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P244The glucagon-like peptide-1 receptor agonist liraglutide ameriolates hypoxia-induced pulmonary hypertension in mice partly via recovery of ETB receptor expression. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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13
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P3561Active selexipag-metabolite MRE-269 induces DUSP1 and inhibits PASMC proliferation. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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14
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Investigation of the relationship between videofluoroscopic examination and tongue pressure using a balloon-type device in acute stroke patients. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1774] [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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15
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Anti-HMGCR antibody positive myopathy shows bcl-2-positive lymphocyte follicles. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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16
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Dyke-Davidoff-Masson syndrome: A rare complication of DPT vaccination. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2612] [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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17
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Stroke recurrence or death during 2 weeks after acute ischemic stroke with atrial fibrillation - multicenter prospective registry in Hiroshima –. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1789] [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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18
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Identification rate of hereditary neurodegenerative disease by next-generation sequencing. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3503] [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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19
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Long term course and malignancy as a prognostic factor of chronic inflammatory demyelinating polyneuropathy. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3038] [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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20
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Investigation of cerebral microbleeds in cases of ischemic stroke/hemorrhagic stroke using only 3.0T MRI data. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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21
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Efficacy of wide-band electrocorticography on mapping of the primary seonsory-motor area compared with electrical cortical stimulation. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Microbleeds evaluation study for prevention of brain hemorrhage in ischemic stroke (MB-evidence): Pilot analysis for multicenter longitudinal study. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1783] [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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P725BMP2 induces DUSP1 in pulmonary artery smooth muscle cells. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.p725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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P728Endothelin-1 modifies BMP signaling pathway to induce cyclin D1 in pulmonary artery smooth muscle cells. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.p728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Observation of the flexoelectricity of a SrTiO 3 single crystal by x-ray absorption and emission spectroscopies. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2017; 29:045702. [PMID: 27882902 DOI: 10.1088/1361-648x/29/4/045702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Flexoelectricity, defined as the spontaneous electric polarization in a dielectric material induced by a strain gradient, is investigated from the microscopic viewpoint by x-ray spectroscopy. A single crystal SrTiO3 sample was used as a test system in order to reveal the appearance of the electric dipole moment by simple bending of the crystal. The spectral change characteristic of ferroelectric transition in SrTiO3 was not observed in the Ti K-edge absorption spectra. Instead, the gradual decrease (increase) of the post-edge feature (pre-edge structure) by bending was qualitatively explained using theoretical calculations that assumed the presence of oxygen vacancies and a slight crystal distortion. This assumption is also supported by the broadening of a tiny charge-transfer peak in the Ti Kβ resonant emission spectra. Therefore, it was revealed that the flexoelectric effect in SrTiO3 is easily drowned out through local imperfection induced by crystal deformations and cracks.
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TBK1 exists with optineurin around rimmed vacuoles. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Platelet-endothelial cell interaction in brain microvessels of angiotensin II type-2 receptor knockout mice following transient bilateral common carotid artery occlusion. J Thromb Thrombolysis 2016; 40:401-5. [PMID: 26231766 DOI: 10.1007/s11239-015-1254-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The purpose of this study was to investigate the behavior of platelets (rolling and adhesion) in cerebral microvessels of angiotensin II type-2 receptor-knockout (AT2RKO) mice after transient bilateral carotid artery occlusion using intravital fluorescence microscopy. Twenty AT2RKO mice, consisting of 11 mice in the sham group and 9 mice in the ischemia reperfusion group (reperfusion after 15 min of bilateral, total carotid artery occlusion) were used in this study. The hole traversed the bone and dura mater, but arachnoid, pia mater, and cerebral parenchyma were preserved. Platelets were harvested from donor mice and stained using carboxyfluorescein diacetate succinimidyl ester. The number of platelets showing rolling and adhesion to pial vessels in AT2 deficient mice at 3 and 6 h after cerebral ischemia reperfusion was significantly higher than that in the sham group (P < 0.05). In addition, AT2 receptor has an inhibitory role in platelet rolling and adhesion after cerebral ischemia reperfusion.
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Functional Outcomes of Decompressive Craniectomy in Patients with Malignant Middle Cerebral Artery Infarction and Their Association with Preoperative Thalamus Deformation: An Analysis of 12 Patients. Intern Med 2016; 55:1991-5. [PMID: 27477404 DOI: 10.2169/internalmedicine.55.6747] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Objective Decompressive craniectomy (DC) in patients with malignant middle cerebral artery (MCA) infarction is known to decrease the mortality rate. However, the functional outcomes (communication and oral intake) of this procedure remain unclear. Most patients with malignant MCA infarction exhibit a loss of consciousness, which may be principally governed by the thalamus. We herein investigated the functional outcomes of DC at 90 days after the onset of malignant MCA infarction and their association with preoperative thalamus deformation, which can occur due to pressure and edema. Methods Twelve of 2,692 patients with acute cerebral infarction were diagnosed with malignant MCA infarction and underwent DC. We evaluated preoperative thalamus damage using brain computed tomography and its association with communication and oral intake abilities and the modified Rankin Scale (mRS) and Barthel index scores at 90 days after stroke onset. Results The mRS score at 90 days was 0-4 in five patients. Seven patients could communicate immediately after surgery, while five could do so by 90 days. Five patients were able to resume the oral intake of food at 90 days. All patients with preoperative thalamus deformation showed a poor recovery, while those with absent or slight preoperative thalamus deformation showed a good recovery. Conclusion Patients with preoperative thalamus deformation caused by pressure and edema show a poor oral intake and communication abilities after DC, suggesting that preoperative thalamus deformation is a predictor of poor functional outcomes after DC in patients with malignant MCA infarction.
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The identification of raft-derived tau-associated vesicles that are incorporated into immature tangles and paired helical filaments. Neuropathol Appl Neurobiol 2015; 42:639-653. [PMID: 26501932 DOI: 10.1111/nan.12288] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 10/07/2015] [Accepted: 10/26/2015] [Indexed: 12/14/2022]
Abstract
AIMS Neurofibrillary tangles (NFTs), a cardinal pathological feature of neurodegenerative disorders, such as Alzheimer's disease (AD) are primarily composed of hyper-phosphorylated tau protein. Recently, several other molecules, including flotillin-1, phosphatidylinositol-4,5-bisphosphate [PtdIns(4,5)P2] and cyclin-dependent kinase 5 (CDK5), have also been revealed as constituents of NFTs. Flotillin-1 and PtdIns(4,5)P2 are considered markers of raft microdomains, whereas CDK5 is a tau kinase. Therefore, we hypothesized that NFTs have a relationship with raft domains and the tau phosphorylation that occurs within NFTs. METHODS We investigated six cases of AD, six cases of other neurodegenerative diseases with NFTs and three control cases. We analysed the PtdIns(4,5)P2-immunopositive material in detail, using super-resolution microscopy and electron microscopy to elucidate its pattern of expression. We also investigated the spatial relationship between the PtdIns(4,5)P2-immunopositive material and tau kinases through double immunofluorescence analysis. RESULTS Pretangles contained either paired helical filaments (PHFs) or PtdIns(4,5)P2-immunopositive small vesicles (approximately 1 μm in diameter) with nearly identical topology to granulovacuolar degeneration (GVD) bodies. Various combinations of these vesicles and GVD bodies, the latter of which are pathological hallmarks observed within the neurons of AD patients, were found concurrently in neurons. These vesicles and GVD bodies were both immunopositive not only for PtdIns(4,5)P2, but also for several tau kinases such as glycogen synthase kinase-3β and spleen tyrosine kinase. CONCLUSIONS These observations suggest that clusters of raft-derived vesicles that resemble GVD bodies are substructures of pretangles other than PHFs. These tau kinase-bearing vesicles are likely involved in the modification of tau protein and in NFT formation.
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Rimmed vacuoles are positive for RIPK1 and RIPK3. Neuromuscul Disord 2015. [DOI: 10.1016/j.nmd.2015.06.194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Efficacy of stabilisation splint therapy combined with non-splint multimodal therapy for treating RDC/TMD axis I patients: a randomised controlled trial. J Oral Rehabil 2015; 42:890-9. [PMID: 26174571 DOI: 10.1111/joor.12332] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/11/2015] [Indexed: 11/29/2022]
Abstract
Stabilisation splint therapy has long been thought to be effective for the management of temporomandibular disorders (TMD). However, the superiority of stabilisation splint therapy compared to other TMD treatments remains controversial. The aim of this study was to determine the efficacy of stabilisation splint therapy combined with non-splint multimodal therapy for TMD. A total of 181 TMD participants were randomly allocated to a non-splint multimodal therapy (NS) group (n = 85) or a non-splint multimodal therapy plus stabilisation splint (NS+S) group (n = 96). Non-splint multimodal therapy included self-exercise of the jaw, cognitive-behavioural therapy, self-management education and additional jaw manipulation. Three outcome measurements were used to assess treatment efficacy: mouth-opening limitation, oro-facial pain and temporomandibular joint sounds. A two-factor repeated-measures analysis of variance (anova) was used to evaluate the efficacy of the two treatment modalities (NS vs. NS+S), and Scheffe's multiple comparison test was used to compare the treatment periods. Subgroup analyses were performed to disclose the splint effects for each TMD diagnostic group. All three parameters significantly decreased over time in both groups. However, there were no significant differences between the two treatment groups in the total comparison or subgroup analyses; an exception was the group with degenerative joint disease. No significant difference between the NS and NS+S treatment approaches was revealed in this study. Therefore, we conclude that the additional effects of stabilisation splint are not supported for patients with TMD during the application of multimodal therapy.
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Effects of a new adsorbent column for removing beta-2-microglobulin from circulating blood of dialysis patients. CONTRIBUTIONS TO NEPHROLOGY 2015; 112:164-71. [PMID: 7554988 DOI: 10.1159/000424105] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Beta 2-microglobulin-related amyloidosis in patients receiving chronic hemodialysis. CONTRIBUTIONS TO NEPHROLOGY 2015; 68:263-9. [PMID: 3069321 DOI: 10.1159/000416524] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Longitudinal change in the physical performance of older adults in the community. JOURNAL OF THE JAPANESE PHYSICAL THERAPY ASSOCIATION 2015; 1:1-5. [PMID: 25792874 DOI: 10.1298/jjpta.1.1] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/1997] [Accepted: 02/07/1998] [Indexed: 01/26/2023]
Abstract
The primary purposes of this study were 1) to confirm age-related deterioration of physical performance in older adults longitudinally, and 2) to predict future functional status and mortality by initial level of physical performances. The subjects were 517 older adults examined both in 1992 and 1996 in the Tokyo Metropolitan Institute of Gerontology, Longitudinal Interdisciplinary Study on Aging. The same battery consisting of muscle strength, balance, walking, and manual speed was administered to the subjects in the baseline and follow-up examinations. A significant longitudinal decline was observed in all physical performances except for grip strength. The age-related decline accelerated with aging for preferred walking velocity. Inter-subject variability in walking velocity significantly increased for 4 years period. Maximum walking velocity was a common predictor for functional status and mortality. The results suggest that physical performance measures, especially maximum walking velocity, is a valid means for physical therapy to evaluate physical functioning of community-living older persons.
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Differential serodiagnostics ofToxocara canisandToxocara cati- is it possible? Parasite Immunol 2015; 37:204-7. [DOI: 10.1111/pim.12181] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 02/17/2015] [Indexed: 11/29/2022]
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Clinical Features of Ischemic Stroke during Treatment with Dabigatran: An Association between Decreased Severity and a Favorable Prognosis. Intern Med 2015; 54:2433-7. [PMID: 26424298 DOI: 10.2169/internalmedicine.54.4948] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVE Anticoagulation therapy with warfarin is associated with a favorable prognosis in ischemic stroke. Dabigatran, a new oral anticoagulant, is widely used to prevent ischemic stroke in non-valvular atrial fibrillation (NVAF) patients. However, its association with decreased severity and a favorable prognosis once ischemic stroke has occurred remains unknown. METHODS We retrospectively reviewed all the patients with NVAF-associated ischemic stroke admitted to our hospital from April 2011 to December 2014 and included those who received dabigatran therapy. We assessed whether the patients were under regular use of the drug or discontinuance and classified them into 2 groups, the treatment and discontinuation groups. Clinical data, including the age, sex, ASCOD stroke phenotype, NVAF type, prescribed drug dose, comorbidities, CHADS2 score, renal function, National Institute of Health Stroke Scale (NIHSS) score on admission, modified Rankin scale (mRS) score at discharge, D-dimer, and brain natriuretic peptide, were investigated and compared between the groups. RESULTS Nine patients were under regular dabigatran therapy, and 6 were under discontinuance of the drug. The age, sex, ASCOD stroke phenotype, NVAF type, comorbidities, renal function, and CHADS2 scores did not differ between the 2 groups; however, the NIHSS scores were significantly lower in the treatment group. The mRS scores at discharge were additionally decreased in the treatment group. Moreover, the D-dimer scores were lower in the treatment group, thus suggesting a possible role in the decreased stroke severity. CONCLUSION Dabigatran may therefore decrease the severity of ischemic stroke, even if ischemic stroke occurs.
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Cerebral Sinovenous Thrombosis in a Patient with Transient Eosinophilia. Intern Med 2015; 54:2097. [PMID: 26278316 DOI: 10.2169/internalmedicine.54.4729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Clinical Outcomes of Persistent and Paroxysmal Atrial Fibrillation in Patients with Stroke. J Stroke Cerebrovasc Dis 2014; 23:2840-2844. [DOI: 10.1016/j.jstrokecerebrovasdis.2014.07.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Revised: 07/03/2014] [Accepted: 07/08/2014] [Indexed: 11/26/2022] Open
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Left carotid-anterior cerebral artery anastomosis diagnosed by MR angiography: a case report. Surg Radiol Anat 2014; 37:311-3. [DOI: 10.1007/s00276-014-1358-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Accepted: 08/04/2014] [Indexed: 10/24/2022]
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Clinical characteristics of cardioembolic transient ischemic attack: comparison with noncardioembolic transient ischemic attack. J Stroke Cerebrovasc Dis 2014; 23:2169-2173. [PMID: 25088173 DOI: 10.1016/j.jstrokecerebrovasdis.2014.04.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2014] [Accepted: 04/02/2014] [Indexed: 10/25/2022] Open
Abstract
BACKGROUND Previous studies show that 6%-31% of transient ischemic attacks (TIA) were caused by cardiogenic cerebral embolism (cardioembolic TIA). As prompt initiation of therapy is essential in TIA to prevent subsequent strokes, determining their cause is important. In this study, we aim to determine the features of cardioembolic TIA and to compare them with those of noncardioembolic etiology. METHODS We retrospectively reviewed patients with a tissue-defined TIA who were admitted to our hospital from April 2007 to August 2013. The etiology was categorized according to Trial of Org 10172 in Acute Stroke Treatment, and TIA of cardioembolic origin and cervicocerebrovascular etiology (noncardioembolic TIA) were included in this study. Those with 2 or more possible causes or undetermined etiologies were excluded. Age, sex, comorbidities, ABCD2 score, and CHADS2 score were assessed and compared between the 2 groups. RESULTS There were no significant differences in the neurologic symptoms and their duration, morbidities of hypertension, diabetes, and dyslipidemia between the 2 groups. Coronary and peripheral artery diseases were more common in the cardioembolic TIA group (18.4% vs. 6.9%). Incidences of prior stroke and cerebral infarction determined by MRI were similar between the 2 groups. The ABCD2 score showed a similar distribution, but the CHADS2 score was significantly different; the cardioembolic TIA group showed a higher score (P = .005). CONCLUSIONS Clinical features are similar in tissue-defined TIA of cardioembolic and noncardioembolic etiologies. The CHADS2 score can be useful in assessing the probability of cardioembolic TIA.
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Effects of rosuvastatin on serum lipids and arteriosclerosis in dyslipidemic patients with cerebral infarction. J Stroke Cerebrovasc Dis 2014; 23:2007-2011. [PMID: 25066602 DOI: 10.1016/j.jstrokecerebrovasdis.2014.02.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Revised: 02/04/2014] [Accepted: 02/13/2014] [Indexed: 10/25/2022] Open
Abstract
BACKGROUND We investigated the effect of rosuvastatin, 3-hydroxy-3-methylglutaryl-coenzyme A reductase inhibitor, on serum lipids and arteriosclerosis in dyslipidemic patients with cerebral infarction. METHODS The subjects were 24 patients with noncardiogenic cerebral infarction complicated by dyslipidemia (low-density lipoprotein cholesterol [LDL-C] ≥ 140 mg/dL). Serum lipids and highly sensitive C-reactive protein (hs-CRP) were measured at the start of the study and at 3 and 12 months after the initiation of oral rosuvastatin (5 mg/day). Cardio-ankle vascular index (CAVI), intima-media thickness (IMT), and plaque score (PS) were also determined at the start of the study and at 12 months. RESULTS Of the 24 patients admitted, 17 were eligible for statistical analysis. Total cholesterol (TC), LDL-C, and non-high-density lipoprotein cholesterol (non-HDL-C) (mean [standard deviation {SD}], mg/dL) were significantly decreased at 3 months (TC, 149.4 [20.4]; LDL-C, 78.7 [18.6]; non-HDL-C, 94.6 [21.7]) and at 12 months (TC, 154.9 [27.2]; LDL-C, 82.5 [23.3]; non-HDL-C, 100.2 [28.8]) compared with the baseline data (TC, 232.8 [29.7]; LDL-C, 162.2 [21.2]; non-HDL-C, 183.0 [27.7]). The serum hs-CRP level (mean [SD], ng/mL) was 1053.1 [818.8] at baseline, 575.2 [481.8] at 3 months, and 488.1 [357.7] at 12 months. The decrease in this parameter at 12 months was statistically significant. There was a decrease, although not statistically significant, in CAVI (mean [SD]) at 12 months (right [Rt.] 8.7 [.9]; left [Lt.] 8.6 [1.0]), compared with baseline (Rt. 9.1 [1.1]; Lt. 9.0 [1.1]). The max-IMT (mean [SD], mm) was (Rt. 2.11 [.97]; Lt. 2.01 [.75]) at baseline and (Rt. 2.18 [.82]; Lt. 2.06 [.79]) at 12 months of study treatment. The PS (mean [SD], mm) was 8.93 [4.33] at baseline and 9.61 [4.79] at 12 months; neither parameter showed a significant change. CONCLUSIONS Rosuvastatin at 5 mg/day significantly reduced serum levels of TC, LDL-C, non-HDL-C, and hs-CRP in dyslipidemic patients with cerebral infarction. No significant change in CAVI, max-IMT, or PS was noted after the study treatment.
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Prediction of Ischemic Stroke in Patients with Tissue-Defined Transient Ischemic Attack. J Stroke Cerebrovasc Dis 2014; 23:1368-73. [DOI: 10.1016/j.jstrokecerebrovasdis.2013.11.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Revised: 09/09/2013] [Accepted: 11/20/2013] [Indexed: 10/25/2022] Open
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Intestinal P-glycoprotein Expression is Multimodally Regulated by Intestinal Ischemia-Reperfusion. JOURNAL OF PHARMACY AND PHARMACEUTICAL SCIENCES 2014; 17:266-76. [DOI: 10.18433/j3jg7d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Purpose. Reactive oxygen species (ROS) have multiple physiological effects that are amount-dependent. ROS are one of the causes of intestinal ischemia-reperfusion (I/R) injury. In this study, we investigated whether the amount of ROS and the degree of intestinal I/R injury affect the expression level of P-glycoprotein (P-gp). Methods. We used hydrogen peroxide (H2O2) as ROS in in vitro experiments. Intestinal I/R model rats, which were subjected 15-min ischemia (I/R-15), were used in in vivo experiments. Results. P-gp expression in Caco-2 cells was increased in response to 1 µM of H2O2 but decreased upon exposure to 10 mM of H2O2. We previously reported that P-gp expression is decreased after intestinal I/R with 30-min ischemia (I/R-30), which time a large amount of ROS is generated. I/R-15 induced slightly less mucosal and oxidative injury than did I/R-30. P-gp expression in the jejunum was increased at 1 h after I/R-15, and ileal paracellular permeability was increased. The blood concentration of tacrolimus, a P-gp substrate, was lower during 0-20 min but was higher during 40-90 min post-administration compared with that in the sham-operated rats. P-gp expression in the ileum was decreased at 6 h after I/R-15, due to abnormal localization of P-gp, resulting in a high blood tacrolimus concentration in rats reperfused for 6 h. Conclusions. ROS multimodally regulate P-gp expression depending on its amount. This is important for understanding the pattern of P-gp expression after intestinal I/R. This article is open to POST-PUBLICATION REVIEW. Registered readers (see “For Readers”) may comment by clicking on ABSTRACT on the issue’s contents page.
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Cilostazol Inhibits Platelet–Endothelial Cell Interaction in Murine Microvessels after Transient Bilateral Common Carotid Artery Occlusion. J Stroke Cerebrovasc Dis 2014; 23:1056-61. [DOI: 10.1016/j.jstrokecerebrovasdis.2013.09.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Revised: 08/30/2013] [Accepted: 09/04/2013] [Indexed: 11/26/2022] Open
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Sonographic and clinical features of collateral vessels at the splenic hilum in cirrhosis. Clin Radiol 2014; 69:e140-5. [DOI: 10.1016/j.crad.2013.11.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Revised: 10/31/2013] [Accepted: 11/04/2013] [Indexed: 01/29/2023]
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Structural, magnetic and electronic state characterization of L1 0-type ordered FeNi alloy extracted from a natural meteorite. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2014; 26:064206. [PMID: 24469025 DOI: 10.1088/0953-8984/26/6/064206] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
To understand the hard magnetism of L10-type ordered FeNi alloy, we extracted the L10-FeNi phase from a natural meteorite, and evaluated its fundamental solid-state properties: sample composition, magnetic hysteresis, crystal structure and electronic structure. We executed multidirectional analyses using scanning electron microscopy with an electron probe micro-analyzer (SEM-EPMA), a superconducting quantum interference device (SQUID), x-ray diffraction (XRD) and magnetic circular dichroism (MCD). As a result, we found that the composition was Fe: 50.47 ± 1.98 at.%, Ni: 49.60 ± 1.49 at.%, and an obvious superlattice peak is confirmed. The estimated degree of order was 0.608, with lattice constants a = b = 3.582 Å and c = 3.607 Å. The obtained coercivity was more than 500 Oe. MCD analysis using the K absorption edge suggests that the magnetic anisotropy could originate from the orbital magnetic moment of 3d electrons in Fe; this result is consistent with that in a previous report obtained with synthetic L10-FeNi.
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MRI abnormality of the pulvinar in patients with status epilepticus. J Neuroradiol 2014; 41:220-6. [PMID: 24485898 DOI: 10.1016/j.neurad.2013.09.003] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Revised: 08/30/2013] [Accepted: 09/05/2013] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Recently, magnetic resonance imaging (MRI) abnormalities of the pulvinar in patients with epilepsy have received greater attention, but their occurrence and features have not been fully elucidated. Therefore, we investigated the clinical and radiological features of patients with epilepsy who presented MRI abnormalities of the pulvinar. PATIENTS AND METHODS We retrospectively investigated 225 consecutive patients who came to our institute because of seizures and underwent an MRI within 24h. The patients who exhibited pulvinar MRI abnormalities, their profile, seizure type, efficacy of medication, and chronological changes of MRI findings were examined. RESULTS Out of the 225 patients who underwent MRI within 24h of seizure, 17 exhibited MRI abnormalities of the pulvinar. All of these 17 patients presented status epilepticus. Bilateral pulvinar diffusion-weighted imaging (DWI) hyperintensity was observed in 3 patients and unilateral pulvinar DWI hyperintensity in the other 14. Out of these 14 patients, 7 exhibited DWI hyperintensity in the ipsilateral cerebral cortex, and 10 patients presented an old lesion due to stroke or trauma. CONCLUSIONS Our results demonstrated that the involvement of the pulvinar in status epilepticus is more frequent than expected and consisted of unilateral or bilateral DWI hyperintensities that may completely normalize. These pulvinar MRI abnormalities possibly reflect the epileptogenic hyperexcitation of different cortical areas through their connections with the pulvinar.
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CHADS2 Score/CHA2DS2-VASc Score and Major Artery Occlusion in Cardioembolic Stroke Patients with Nonvalvular Atrial Fibrillation. Int J Stroke 2014; 9:576-9. [DOI: 10.1111/ijs.12227] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Accepted: 10/20/2013] [Indexed: 11/27/2022]
Abstract
Objective The associations between the CHADS2 score/ CHA2DS2-VASc score, and the presence of cerebral vessel occlusion on admission were examined in cardioembolic stroke patients with nonvalvular atrial fibrillation. Methods The subjects were 546 consecutive patients hospitalized between April 2007 and December 2012 with onset of cardioembolic stroke associated with nonvalvular atrial fibrillation within 24 h. The associations between the CHADS2 score/CHA2DS2-VASc score and the presence of occluded cerebral vessels on magnetic resonance angiography were evaluated retrospectively. Occluded cerebral vessels were classified into the internal carotid artery, middle cerebral artery (M1, M2), basilar artery, and other (anterior cerebral artery [A1], posterior cerebral artery [P1], vertebral artery). Results Major artery occlusion was seen in 52% of patients with CHADS2 score 0, 52% of patients with score 1, 57% with score 2, 75% with score 3, and 75% with score ≥4. As for the CHA2DS2-VASc score, major artery occlusion was seen in 62% of patients with score 0, 49% with score 1, 53% with score 2, 53% with score 3, 65% with score 4, 71% with score 5, and 82% with score ≥6. The incidence of concurrent major arterial occlusion increased as both scores rose. When classified by occluded blood vessel, the incidence of concurrent internal carotid artery occlusion increased as both the CHADS2 and CHA2DS2-VASc scores increased. Conclusion As the CHADS2 and CHA2DS2-VASs scores increased, the incidence of concurrent major arterial occlusion, particularly internal carotid artery occlusion, increased in patients with cardioembolic stroke associated with nonvalvular atrial fibrillation.
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Neuropathological features of Japanese familial amyotrophic lateral sclerosis with p.N352S mutation inTARDBP. Neuropathol Appl Neurobiol 2014; 40:231-6. [DOI: 10.1111/nan.12090] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Accepted: 10/02/2013] [Indexed: 12/13/2022]
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