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1.
Epilepsy Behav ; 156: 109797, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38788658

RESUMEN

PURPOSE: We aimed to identify factors that contribute to the discontinuation of perampanel. METHODS: We retrospectively analyzed patients with epilepsy at the Department of Psychiatry, Hokkaido University Hospital. We evaluated the factors contributing to perampanel discontinuation as primary outcomes using Cox proportional hazards regression. Then, we explored the components contributing to the primary outcomes using logistic regression analysis. RESULTS: A total of 118 patients were included, 44.9% of whom discontinued participation, 22.0% had intellectual disability, and 23.7% had a psychiatric disorder other than intellectual disability. Adverse effects occurred in 65% of the patients, 23.7% had psychiatric adverse effects (PAE), and 49.2% had common adverse effects (CAE). The effect of PER to suppress seizures was confirmed in 65.3% of them. Discontinuation was influenced by non-response (Hazard Ratio (HR) 6.70, 95% Confidence Interval (CI) 3.42-13.1), the occurrence of PAE (HR 3.68, 95% CI 1.89-7.16), CAE (HR 1.90, 95% CI 1.06-3.41), and comorbid psychiatric disorders (HR 2.35, 95% CI 1.21-4.59). Moreover, comorbid intellectual disability correlated with a low risk of PAE (OR 0.19, 95% CI 0.04-0.89). CONCLUSION: The discontinuation of perampanel is influenced by poor efficacy and the occurrence of common/psychiatric adverse effects. The discontinuation of perampanel is influenced by poor efficacy and the occurrence of common/psychiatric adverse effects. Consideration of factors contributing to perampanel discontinuation may assist in determining the indication for perampanel treatment.


Asunto(s)
Anticonvulsivantes , Trastornos Mentales , Nitrilos , Piridonas , Humanos , Piridonas/efectos adversos , Piridonas/uso terapéutico , Nitrilos/efectos adversos , Femenino , Masculino , Estudios Retrospectivos , Anticonvulsivantes/efectos adversos , Anticonvulsivantes/uso terapéutico , Persona de Mediana Edad , Adulto , Trastornos Mentales/epidemiología , Trastornos Mentales/tratamiento farmacológico , Epilepsia/tratamiento farmacológico , Epilepsia/epidemiología , Anciano , Adulto Joven , Discapacidad Intelectual/epidemiología , Adolescente
2.
Pediatr Res ; 2023 Oct 19.
Artículo en Inglés | MEDLINE | ID: mdl-37857850

RESUMEN

BACKGROUND: The association between prenatal metal exposure and congenital anomalies is unclear. We aimed to examine the association between exposure to cadmium, lead, mercury, selenium, and manganese and physical abnormalities. METHODS: Data from 89,887 pregnant women with singleton pregnancies who participated in the Japan Environment and Children's Study (JECS) were used. The correlation between maternal blood metal concentrations and physical abnormalities during the second or third trimester was investigated using logistic regression models. Physical anomalies included those observed at birth or at 1 month, primarily from ICD-10 Chapter 17, particularly congenital anomalies associated with environmental factors (e.g., hypospadias, cryptorchidism, cleft lip and palate, digestive tract atresia, congenital heart disease, and chromosomal abnormalities) and minor abnormalities. RESULTS: After adjusting for covariates, the OR (95% CIs) of physical abnormalities for a one-unit rise in Mn concentrations in all individuals were 1.26 (1.08, 1.48). The OR (95% CIs) of physical abnormalities in the 4th quartile (≥18.7 ng/g) were 1.06 (1.01, 1.13) (p-value for the trend = 0.034) compared with those in the 1st quartile (≤12.5 ng/g). CONCLUSION: In Japan, maternal blood Mn concentrations above threshold during pregnancy may slightly increase the incidence of physical abnormalities. IMPACT: Physical abnormalities (including minor anomalies and congenital anomalies) are associated with prenatal manganese concentrations. They are not associated with cadmium, lead, mercury, and selenium concentrations.

3.
Epilepsy Behav ; 145: 109345, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-37441983

RESUMEN

BACKGROUND: Patients with epilepsy (PWE), especially those with Idiopathic Epilepsy (GE), are at a high risk of disadvantage caused by non-adherence. It has been suggested that medical visit behavior may be a surrogate indicator of medication adherence. We hypothesized that patients with IGE would adhere poorly to visits. METHODS: This was a retrospective study of PWE who visited the Department of Psychiatry and Neurology at Hokkaido University Hospital between January 2017 and December 2019. Demographic and clinical information on PWE were extracted from medical records and visit data from the medical information system. Non-attendance of outpatient appointments was defined as "not showing up for the day of an appointment without prior notice." Mixed-effects logistic regression analysis was conducted with non-attendance as the objective variable. RESULTS: Of the 9151 total appointments, 413 were non-attendances, with an overall non-attendance rate of 4.5%. IGE was a more frequent non-attendance than Focal Epilepsy (FE) (odds ratio (OR) 1.94; 95% confidence interval (CI) 1.17-3.21; p = 0.010). History of public assistance receipt was associated with higher non-attendance (OR 2.04; 95% CI 1.22-3.43; p = 0.007), while higher education (OR 0.64; 95% CI 0.43-0.93; p = 0.021) and farther distance to a hospital (OR 0.33; 95% CI 0.13-0.88; p = 0.022), and higher frequency of visits (OR 0.18; 95% CI 0.04-0.86; p = 0.031) were associated with fewer non-attendances. In a subgroup analysis of patients with GE, women were associated with fewer non-attendance (OR 0.31; 95% CI 0.14-0.72; p = 0.006). CONCLUSIONS: GE was more frequent in the non-attendance group than in the FE group. Among patients with GE, females were found to have non-attendance less frequently; however, there was no clear difference in the odds of non-attendance between Juvenile Myoclonic Epilepsy (JME) and IGE other than JME.


Asunto(s)
Epilepsias Parciales , Epilepsia Generalizada , Epilepsia Mioclónica Juvenil , Humanos , Femenino , Estudios Retrospectivos , Pacientes Ambulatorios , Epilepsia Mioclónica Juvenil/tratamiento farmacológico , Inmunoglobulina E/uso terapéutico
4.
BMC Pulm Med ; 23(1): 312, 2023 Aug 28.
Artículo en Inglés | MEDLINE | ID: mdl-37641057

RESUMEN

BACKGROUND: During the fifth wave of the coronavirus disease 2019 (COVID-19) pandemic in Japan, which took place between June and September 2021, a significant number of COVID-19 cases with deterioration occurred in unvaccinated individuals < 65 years old. However, the risk factors for COVID-19 deterioration in this specific population have not yet been determined. This study developed a prediction method to identify COVID-19 patients < 65 years old who are at a high risk of deterioration. METHODS: This retrospective study analyzed data from 1,675 patients < 65 years old who were admitted to acute care institutions in Fukushima with mild-to-moderate-1 COVID-19 based on the Japanese disease severity criteria prior to the fifth wave. For validation, 324 similar patients were enrolled from 3 hospitals in Yamagata. Logistic regression analyses using cluster-robust variance estimation were used to determine predictors of disease deterioration, followed by creation of risk prediction scores. Disease deterioration was defined as the initiation of medication for COVID-19, oxygen inhalation, or mechanical ventilation starting one day or later after admission. RESULTS: The patients whose condition deteriorated (8.6%) tended to be older, male, have histories of smoking, and have high body temperatures, low oxygen saturation values, and comorbidities, such as diabetes/obesity and hypertension. Stepwise variable selection using logistic regression to predict COVID-19 deterioration retained comorbidities of diabetes/obesity (DO), age (A), body temperature (T), and oxygen saturation (S). Two predictive scores were created based on the optimism-corrected regression coefficients: the DOATS score, including all of the above risk factors, and the DOAT score, which was the DOATS score without oxygen saturation. In the original cohort, the areas under the receiver operating characteristic curve (AUROCs) of the DOATS and DOAT scores were 0.81 (95% confidence interval [CI] 0.77-0.85) and 0.80 (95% CI 0.76-0.84), respectively. In the validation cohort, the AUROCs for each score were both 0.76 (95% CI 0.69-0.83), and the calibration slopes were both 0.80. A decision curve analysis confirmed the clinical practicability of both scores in the validation cohort. CONCLUSIONS: We established two prediction scores that can quickly evaluate the risk of COVID-19 deterioration in mild/moderate patients < 65 years old.


Asunto(s)
COVID-19 , Diabetes Mellitus , Humanos , Masculino , Anciano , COVID-19/epidemiología , Estudios Retrospectivos , Progresión de la Enfermedad , Diabetes Mellitus/epidemiología , Obesidad/epidemiología
5.
Pediatr Res ; 92(1): 291-298, 2022 07.
Artículo en Inglés | MEDLINE | ID: mdl-34088984

RESUMEN

BACKGROUNDS: Japanese studies on the association between maternal alcohol consumption and fetal growth are few. This study assessed the effect of maternal alcohol consumption on fetal growth. METHODS: This prospective birth cohort included 95,761 participants enrolled between January 2011 and March 2014 in the Japan Environment and Children's Study. Adjusted multiple linear and logistic regression models were used to assess the association between prenatal alcohol consumption and infant birth size. RESULTS: Consumption of a weekly dose of alcohol in the second/third trimester showed a significant negative correlation with standard deviation (SD; Z) scores for body weight, body length, and head circumference at birth, respectively. Consumption of a weekly dose of alcohol during the second/third trimester had a significant positive correlation with incidences of Z-score ≤ -1.5 for birth head circumference. Associations between alcohol consumption in the second/third trimester and Z-score ≤ -1.5 for birth weight or birth length were not significant. Maternal alcohol consumption in the second/third trimester above 5, 20, and 100 g/week affected body weight, body length, and head circumference at birth, respectively. CONCLUSION: Low-to-moderate alcohol consumption during pregnancy might affect fetal growth. Public health policies for pregnant women are needed to stop alcohol consumption during pregnancy. IMPACT: This study examined the association between maternal alcohol consumption and fetal growth restriction in 95,761 pregnant Japanese women using the prospective birth cohort. Maternal alcohol consumption in the second/third trimester more than 5, 20, and 100 g/week might affect fetal growth in body weight, body length, and head circumference, respectively. The findings are relevant and important for educating pregnant women on the adverse health effects that prenatal alcohol consumptions have on infants.


Asunto(s)
Retardo del Crecimiento Fetal , Efectos Tardíos de la Exposición Prenatal , Peso al Nacer , Niño , Etanol/efectos adversos , Femenino , Desarrollo Fetal , Retardo del Crecimiento Fetal/etiología , Humanos , Lactante , Recién Nacido , Japón/epidemiología , Exposición Materna , Embarazo , Efectos Tardíos de la Exposición Prenatal/epidemiología , Estudios Prospectivos
6.
World J Urol ; 40(12): 2939-2946, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-36331614

RESUMEN

PURPOSE: There is a discrepancy in the efficacy of abiraterone acetate for overall survival (OS) in patients with high-risk metastatic hormone-sensitive prostate cancer (mHSPC). This study aimed to identify predictive factors for the efficacy of abiraterone acetate for OS in high-risk mHSPC patients by analyzing them over a longer observation period. METHODS: Five hundred high-risk mHSPC patients were retrospectively identified at our hospital and affiliated hospitals in the Kindai Oncology Study Group and Kyoto Prefectural University of Medicine Oncology Study Group between December 2013 and March 2022. Two hundred patients were treated with abiraterone acetate (1000 mg/day) plus prednisolone (5 mg/day) combined with androgen deprivation therapy (ADT). A total of 300 patients were treated with bicalutamide (80 mg/day) in combination with ADT. RESULTS: OS was not significantly different between the two treatments in the overall cohort (p = 0.1643). In the subgroup without Gleason pattern 5 at the primary lesion, OS was significantly better in patients treated with abiraterone acetate than in those treated with bicalutamide (p = 0.0192). In the subgroup with Gleason pattern 5 at the primary lesion, no significant difference was found between the two treatments (p = 0.1799). Univariate and multivariate analyses in the subgroup without Gleason pattern 5 at the primary lesion suggested that abiraterone therapy may be an important and independent predictor of OS in high-risk mHSPC patients. CONCLUSION: The presence of Gleason pattern 5 at the primary lesion may be a predictor for high-risk mHSPC patients who could benefit from abiraterone acetate treatment.


Asunto(s)
Acetato de Abiraterona , Neoplasias de la Próstata , Masculino , Humanos , Acetato de Abiraterona/uso terapéutico , Antagonistas de Andrógenos/uso terapéutico , Neoplasias de la Próstata/patología , Estudios Retrospectivos , Protocolos de Quimioterapia Combinada Antineoplásica , Hormonas/uso terapéutico , Resultado del Tratamiento
7.
Int J Med Sci ; 19(5): 834-841, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35693744

RESUMEN

Background: Mutations of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) may reduce the efficacy of neutralizing monoclonal antibody therapy against coronavirus disease 2019 (COVID-19). We here evaluated the efficacy of casirivimab-imdevimab in patients with mild-to-moderate COVID-19 during the Delta variant surge in Fukushima Prefecture, Japan. Methods: We enrolled 949 patients with mild-to-moderate COVID-19 who were admitted to hospital between July 24, 2021 and September 30, 2021. Clinical deterioration after admission was compared between casirivimab-imdevimab users (n = 314) and non-users (n = 635). Results: The casirivimab-imdevimab users were older (P < 0.0001), had higher body temperature (≥ 38°C) (P < 0.0001) and greater rates of history of cigarette smoking (P = 0.0068), hypertension (P = 0.0004), obesity (P < 0.0001), and dyslipidemia (P < 0.0001) than the non-users. Multivariate logistic regression analysis demonstrated that receiving casirivimab-imdevimab was an independent factor for preventing deterioration (odds ratio 0.448; 95% confidence interval 0.263-0.763; P = 0.0023). Furthermore, in 222 patients who were selected from each group after matching on the propensity score, deterioration was significantly lower among those receiving casirivimab-imdevimab compared to those not receiving casirivimab-imdevimab (7.66% vs 14.0%; p = 0.021). Conclusion: This real-world study demonstrates that casirivimab-imdevimab contributes to the prevention of deterioration in COVID-19 patients after hospitalization during a Delta variant surge.


Asunto(s)
Tratamiento Farmacológico de COVID-19 , Pandemias , Anticuerpos Monoclonales Humanizados , Humanos , SARS-CoV-2 , Resultado del Tratamiento
8.
Br J Haematol ; 195(2): 217-229, 2021 10.
Artículo en Inglés | MEDLINE | ID: mdl-34318926

RESUMEN

This nationwide multicentre retrospective study was performed to analyze clinical features that predict the prognosis of central nervous system invasion in multiple myeloma (CNS-MM, approximately 1% of MM). Overall, of the 77 adult patients with CNS-MM identified between 2005 and 2016, those diagnosed at MM diagnosis (n = 3) had longer overall survival (OS) than those diagnosed at relapse (n = 74; median: 48·5 vs 2·7 months). Therefore, we compared the relapsed MM with CNS-MM in patients with any treatment (n = 60). Multivariate analyses revealed that lenalidomide treatment [hazard ratio (HR) 0·27, P = 0·003], intrathecal chemotherapy (IT; HR 0·54, P = 0·05), and radiation therapy (RTx; HR 0·33, P < 0·001) for CNS-MM had a positive effect on longer OS. These factors were used to develop a scoring system combining the number of treatments with lenalidomide, IT, and RTx (0, 1, 2, 3). The OS of CNS-MM patients was stratified based on these factors, with a median OS of 1·1, 4·5, and 7·5 months for patients with zero, one, two to three favourable features, respectively (0 vs 1, P = 0·0002; 1 vs 2-3, P = 0·08). Multimodal treatment including lenalidomide in addition to conventional IT and RTx can improve OS.


Asunto(s)
Sistema Nervioso Central/patología , Mieloma Múltiple/tratamiento farmacológico , Mieloma Múltiple/mortalidad , Invasividad Neoplásica/patología , Adulto , Anciano , Anciano de 80 o más Años , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Estudios de Casos y Controles , Terapia Combinada , Femenino , Humanos , Factores Inmunológicos/administración & dosificación , Factores Inmunológicos/uso terapéutico , Inyecciones Espinales , Japón/epidemiología , Lenalidomida/administración & dosificación , Lenalidomida/uso terapéutico , Masculino , Persona de Mediana Edad , Mieloma Múltiple/epidemiología , Pronóstico , Radioterapia/métodos , Proyectos de Investigación , Estudios Retrospectivos , Encuestas y Cuestionarios , Análisis de Supervivencia
9.
Int J Urol ; 27(2): 149-155, 2020 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-31721315

RESUMEN

OBJECTIVE: To examine the effect of permanent salvage brachytherapy in prostate cancer patients suffering recurrence after three-dimensional conformal external beam radiotherapy. METHODS: The ultra-focal (target lesion alone), hemi-lobe (within a hemi-lobe) or focused whole-gland (focusing on the lesion, but extending into the whole gland) pattern was selected based on the Gleason score for the targeted biopsy, the numbers of positive cores in the targeted and systematic biopsies, and the locations of the positive cores. Novel dosimetry criteria derived from three-dimensional cancer mapping, which was based on targeted magnetic resonance imaging/transrectal ultrasound fusion biopsies, were used in these cases. RESULTS: Permanent salvage brachytherapy was carried out in 13 patients who suffered prostate-specific antigen failure (prostate-specific antigen 2.1-6.8 ng/mL; age range 57-75 years; Gleason score ≤7 [n = 10], Gleason score ≥8 [n = 2] and Gleason score not available [n = 1]) since 2012. The targeted biopsy showed a single focus in three patients. The ultra-focal, hemi-lobe and focused whole-gland patterns were chosen in three, five and five patients, respectively. During the follow-up period (median duration 48 months), prostate-specific antigen failure occurred in zero of three, one of five and three of five of the patients treated with the ultra-focal, hemi-lobe and focused whole-gland patterns, respectively. The 4-year biochemical recurrence-free survival rate was 74%. No grade 3-4 adverse intestinal or urological events occurred. CONCLUSIONS: Targeted fusion biopsy-based three-dimensional cancer mapping should be used for permanent salvage brachytherapy treatment planning to reduce the incidence of treatment-related adverse events while maintaining good oncological outcomes.


Asunto(s)
Braquiterapia , Neoplasias de la Próstata , Anciano , Biopsia , Humanos , Biopsia Guiada por Imagen , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/diagnóstico por imagen , Antígeno Prostático Específico , Neoplasias de la Próstata/diagnóstico por imagen , Neoplasias de la Próstata/radioterapia , Terapia Recuperativa
10.
Mycopathologia ; 185(6): 1021-1031, 2020 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-32816250

RESUMEN

The prominence of seafood in Japan motivates close monitoring of its seas and marine lives for potentially pathogenic fungi. During the treatments of the male Pacific white-sided dolphin (Lagenorhynchus obliquidens) for paracoccidioidomycosis ceti (PCM-C), 5 white and floccose colonies showing identical genotype and morphological characteristics were isolated from two skin biopsy samples of cutaneous granulomatous lesions in 2018. The isolates were identified as Parengyodontium album known as one of fungal species having abilities to produce industrially important proteases, and to become a causative agent for emerging mycosis based on morphological and molecular biological characteristics. These lesions consisted of non-malignant pearl-like structures of hyperplastic keratinocytes. Interestingly, although the isolates could grow at 35 °C, their DNA sequences were phylogenetically located in a cluster consisting of environmental and clinical isolates lacking the ability to grow at 35 °C, based on previous reports. The opportunistic infection we observed in the dolphin might be caused by immune disorder due to PCM-C. Notably, although P. album is recognized as non-harmful, and has significant industrial importance and antitumor activity, it has potential to cause not only superficial but also systemic infection, and presents difficulties in treatment because of its high resistance to antifungal compounds.


Asunto(s)
Delfines/microbiología , Hypocreales , Paracoccidioidomicosis , Enfermedades Cutáneas Infecciosas/veterinaria , Animales , Hypocreales/aislamiento & purificación , Japón , Masculino , Paracoccidioidomicosis/veterinaria , Enfermedades Cutáneas Infecciosas/microbiología
11.
Opt Express ; 27(20): 27573-27579, 2019 Sep 30.
Artículo en Inglés | MEDLINE | ID: mdl-31684522

RESUMEN

Hologram memory is a strong candidate for optical storage due to its high recording density and high data transfer rate. We have studied and engineered a magnetic hologram memory medium using a stable magnetic garnet as recording material. To record a deep and clear magnetic hologram, it is important to control the heat diffusion generated during recording. Numerical simulation suggested that a multilayer structure with transparent heat-dissipation layers would be effective to address this. We fabricated a multilayer magnetic medium for a collinear magnetic hologram. This medium exhibited a diffraction efficiency as high as that of the single layered one, and errorless recording and reconstruction was achieved with the magnetic assist technique.

13.
Acta Haematol ; 141(2): 111-118, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30726834

RESUMEN

We assessed the efficacy and safety of weekly cyclophosphamide-bortezomib-dexamethasone (CBD) induction prior to autologous stem cell transplantation (ASCT) in newly diagnosed Japanese patients with multiple myeloma (MM). This regimen consisted of four 28-day cycles of once-weekly oral cyclophosphamide (300 mg/m2), subcutaneous bortezomib (1.3 mg/m2), and oral dexamethasone (40 mg). Responding patients underwent stem cell collection followed by ASCT. The primary endpoint was the postinduction rate of achieving a near complete response (nCR) or better. Among the 38 enrolled patients, a complete response (CR), an nCR, a very good partial response (VGPR), and a partial response (PR) were achieved in 10.5, 2.6, 23.7, and 36.8% of cases, respectively. A grade 4 hematological adverse event (AE) was observed in 1 patient. Grade 3-4 infection, including febrile neutropenia, was observed in 4 patients (10.5%). Although 2 patients dropped out due to AE, 94.7% of the patients completed the induction phase. However, because of a poor response to induction chemotherapy (

Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Bortezomib/administración & dosificación , Ciclofosfamida/administración & dosificación , Dexametasona/administración & dosificación , Mieloma Múltiple/tratamiento farmacológico , Adolescente , Adulto , Anciano , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Bortezomib/efectos adversos , Ciclofosfamida/efectos adversos , Dexametasona/efectos adversos , Esquema de Medicación , Femenino , Enfermedades Hematológicas/etiología , Trasplante de Células Madre Hematopoyéticas , Humanos , Japón , Masculino , Persona de Mediana Edad , Mieloma Múltiple/diagnóstico , Mieloma Múltiple/mortalidad , Análisis de Supervivencia , Trasplante Autólogo , Resultado del Tratamiento , Adulto Joven
14.
J Stroke Cerebrovasc Dis ; 28(3): 612-618, 2019 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-30472173

RESUMEN

OBJECTIVE: To investigate the prevalence and outcomes of asymptomatic coronary artery disease (CAD) in patients with the first episode of ischemic stroke. METHODS: Patients admitted to our hospital between November 2001 and January 2009 for the episode of an acute ischemic stroke/transient ischemic attack were included. Stress-Tl-201 scintigraphy was performed and followed by coronary angiography (CAG). The prevalence and risks for asymptomatic CAD, and long-term outcomes were studied. RESULTS: Of 1309 patients, only 15 (1.1%) patients presented with a history of CAD. Excluding 406 patients because of severity, systemic infection, early transfer to another hospital, or a refusal to participate, myocardial scintigraphy was performed in 903 patients (mean age, 72 ± 10 years, male 63.9%), and myocardial ischemia was diagnosed in 214 patients (23.7%). Of these patients, 76 patients underwent CAG, and showed significant stenosis (>75%) of a coronary artery in 61 (80.3%) patients. The risk factors for positive scintigraphy findings and CAG were high-grade premature complexes via Holter monitoring (P < .0001), enlarged left ventricle (P = .0051) and wall motion abnormalities (P = .0014) observed on echocardiography, and carotid artery stenosis observed in magnetic resonance angiography imaging (P < .0001). During the follow-up periods of 83 ± 47 months and of 91 ± 47 months, 17.2% of scintigraphy-positive and 2.8% of scintigraphy-negative patients developed episodes of myocardial ischemia, respectively (P < .001). CONCLUSIONS: Symptomatic CAD was rare in Japanese patients with the first episode of ischemic stroke, but asymptomatic CAD was identified by stress Tl-201 myocardial scintigraphy in one-quarter of the patients. Positive scintigraphy was associated with asymptomatic CAD and future cardiac events.


Asunto(s)
Isquemia Encefálica/epidemiología , Enfermedad de la Arteria Coronaria/epidemiología , Accidente Cerebrovascular/epidemiología , Anciano , Anciano de 80 o más Años , Enfermedades Asintomáticas , Isquemia Encefálica/diagnóstico por imagen , Isquemia Encefálica/terapia , Angiografía Cerebral/métodos , Angiografía por Tomografía Computarizada , Angiografía Coronaria , Enfermedad de la Arteria Coronaria/diagnóstico por imagen , Enfermedad de la Arteria Coronaria/terapia , Progresión de la Enfermedad , Femenino , Humanos , Japón/epidemiología , Angiografía por Resonancia Magnética , Masculino , Persona de Mediana Edad , Admisión del Paciente , Tomografía de Emisión de Positrones , Prevalencia , Pronóstico , Medición de Riesgo , Factores de Riesgo , Accidente Cerebrovascular/diagnóstico por imagen , Accidente Cerebrovascular/terapia , Factores de Tiempo
15.
Chemistry ; 24(29): 7398-7409, 2018 May 23.
Artículo en Inglés | MEDLINE | ID: mdl-29504636

RESUMEN

The combination of the redox-active mesogenic anion [NiII (Bdt)(BdtSQ)]- (Bdt=1,2-benzenedithiolato; BdtSQ=1,2-dithia-semi-benzoquinonato) with alkyl-substituted ammonium cations afforded a series of redox-active ionic complexes of the type [NR4 ][NiII (Bdt)(BdtSQ)] [R=nC16 H33 (NC164 Ni) and C8,10 (NC8,104 Ni); C8,10=6-octylhexadecyl] or [NMe2 R2 ][NiII (Bdt)(BdtSQ)] [R=nC16 H33 (NMe2 C162 Ni) and C8,10 (NMe2 C8,102 Ni)]. X-ray crystallographic analyses of NMe2 C162 Ni and NC164 Ni revealed the formation of cation-dependent integrated ionic layers separated by interdigittated alkyl chains. Complexes NMe2 C162 Ni and NC164 Ni commonly form crystalline phases at room temperature, whereas complexes NMe2 C8,102 Ni and NC8,104 Ni, which contain branched alkyl chains, form a metastable mesophase and an amorphous phase at the same temperature, respectively. Furthermore, complexes NMe2 C162 Ni, NMe2 C8,102 Ni, and NC164 Ni commonly form a smectic A phase (SmA) at 375, 317, and 342 K, respectively. For the four complexes, well-defined cyclic voltammetry responses, derived from ligand-based oxidation and reduction, were observed in solution and the condensed phases, that is, upon casting these complexes on an indium-doped tin oxide working electrode. The present study demonstrates the tunability of the mesomorphism of ionic molecular assemblies composed of alkyl-substituted quaternary ammonium cations, while maintaining the well-defined redox responses of the anions even in the condensed phases.

16.
Sci Technol Adv Mater ; 19(1): 535-542, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30083278

RESUMEN

We report a novel and inexpensive fabrication process of multiferroic nanocomposite via liquid phase using an anodic alumina template. The sol-gel spin-coating technique was used to coat the template with ferrimagnetic CoFe2O4. By dissolving the template with NaOH aqueous solution, a unique nanotube array structure of CoFe2O4 was obtained. The CoFe2O4 nanotube arrays were filled with, and sandwiched in, ferroelectric BaTiO3 layers by a sol-gel spin-coating method to obtain the composite. Its multiferroicity was confirmed by measuring the magnetic and dielectric hysteresis loops.

17.
Opt Express ; 25(13): 15349-15357, 2017 Jun 26.
Artículo en Inglés | MEDLINE | ID: mdl-28788962

RESUMEN

Magnetic holographic memory is expected as a rewritable high-capacity data storage technology. To improve the reconstructed image, we investigate recording conditions by numerical simulation and experiments. We found experimentally that four diffracted beams from a digital micromirror device interfere with each other at a suitable defocus recording point, and such overlapping is favorable to obtain clear reconstruction images without diffuser. Subsequently, we modify the shape of the reference beam to ensure more effective interference. As a result, we achieve error-free image reconstruction from the magnetic hologram. Our results indicate that magnetic holograms can potentially be utilized as holographic memory.

18.
Int Heart J ; 58(5): 778-786, 2017 Oct 21.
Artículo en Inglés | MEDLINE | ID: mdl-28966327

RESUMEN

High mobility group box 1 (HMGB1), a ubiquitous DNA-binding protein, promotes angiogenesis and tissue repair, resulting in restored cardiac function after myocardial infarction (MI). Although dipeptidyl peptidase 4 (DPP4) degrades certain peptides, it remains unclear as to whether HMGB1 is a substrate of DPP4 and whether DPP4 inhibition prevents the cleavage of HMGB1.In transgenic mice with cardiac-specific overexpression of HMGB1 (TG) and wild-type mice (WT), a diabetic state was induced by streptozotocin, and MI was created by ligation of the left anterior descending coronary artery. To inhibit DPP4 activity, a DPP4 inhibitor anagliptin was used. The plasma levels of HMGB1, infarct size, echocardiographic data, angiogenesis, and vascular endothelial growth factor (VEGF) expression in the peri-infarct area were compared among non-diabetic MI WT/TG, diabetic MI WT/TG, and anagliptin-treated diabetic MI WT/TG mice.DPP4 activity was increased in the diabetic state and blocked by anagliptin administration. The HMGB1 plasma levels were reduced in the diabetic TG compared with the non-diabetic TG mice, but DPP4 inhibition with anagliptin increased HMGB1 plasma levels in the diabetic TG mice. The infarct area was significantly larger in the diabetic TG than in the non-diabetic TG mice, and it was reduced by DPP4 inhibition. Cardiac function, angiogenesis, and VEGF expression were impaired in the diabetic TG mice, but they were ameliorated by the DPP4 inhibition to levels similar to those found in the non-diabetic TG mice.The DPP4 inhibitor ameliorated cardiac function by inhibiting the inactivation of HMGB1 in diabetic mice after MI.


Asunto(s)
Diabetes Mellitus Experimental/complicaciones , Dipeptidil Peptidasa 4/efectos de los fármacos , Proteína HMGB1/biosíntesis , Infarto del Miocardio/metabolismo , Miocardio/metabolismo , Pirimidinas/farmacología , Función Ventricular Izquierda/efectos de los fármacos , Animales , Western Blotting , Dipeptidil Peptidasa 4/metabolismo , Inhibidores de la Dipeptidil-Peptidasa IV/farmacología , Ecocardiografía , Ensayo de Inmunoadsorción Enzimática , Proteína HMGB1/efectos de los fármacos , Masculino , Ratones , Ratones Transgénicos , Infarto del Miocardio/diagnóstico , Infarto del Miocardio/etiología , Miocardio/patología
19.
Opt Express ; 24(1): 522-7, 2016 Jan 11.
Artículo en Inglés | MEDLINE | ID: mdl-26832282

RESUMEN

Holographic memory is expected to become a high-capacity data storage. Magnetic volumetric holograms are rewritable holograms that are recorded as magnetization directions through thermomagnetic recording. However, the effective depth of magnetic holograms is limited by thermal diffusion that causes merging of magnetic fringes. In this study, we propose the insertion of heat-sink layers (HSLs) for retaining well-defined magnetic fringes during volumetric writing. Magnetophotonic microcavity media were used for demonstrating the HSL effect, and the structural design principle was established in numerical calculations. The results indicate that deep and clear magnetic fringes and an improvement in the diffraction efficiency can be achieved by the insertion of HSLs.

20.
Opt Express ; 24(8): 8746-53, 2016 Apr 18.
Artículo en Inglés | MEDLINE | ID: mdl-27137308

RESUMEN

Magnetophotonic crystals (MPCs) comprising cerium-substituted yttrium iron garnet (CeYIG) sandwiched by two Bragg mirrors were fabricated by vacuum annealing. CeYIG was deposited on Bragg mirrors at room temperature and annealed in 5 Pa of residual air. No ceria or other non-garnet phases were detected. Cerium 3 + ions substituted on the yttrium sites and no cerium 4 + ions were found. The Faraday rotation angle of the MPC was -2.92° at a wavelength of λ = 1570 nm was 30 times larger than that of the CeYIG film. These results showed good agreement with calculated values derived using a matrix approach.

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