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1.
Psychiatry Clin Neurosci ; 74(6): 362-370, 2020 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-32166827

RESUMEN

AIM: Suicide attempters have a high risk of repeated suicide attempts and completed suicide. There is evidence that assertive case management can reduce the incidence of recurrent suicidal behavior among suicide attempters. This study evaluated the effect of an assertive-case-management training program. METHODS: This multicenter, before-and-after study was conducted at 10 centers in Japan. Participants were 274 medical personnel. We used Japanese versions of the Attitudes to Suicide Prevention Scale, the Gatekeeper Self-Efficacy Scale, the Suicide Intervention Response Inventory (SIRI), and the Attitudes Toward Suicide Questionnaire. We evaluated the effects with one-sample t-tests, and examined prognosis factors with multivariable analysis. RESULTS: There were significant improvements between pre-training and post-training in the Attitudes to Suicide Prevention Scale (mean: -3.07, 95% confidence interval [CI]: -3.57 to -2.57, P < 0.001), the Gatekeeper Self-Efficacy Scale (mean: 10.40, 95%CI: 9.48 to 11.32, P < 0.001), SIRI-1 (appropriate responses; mean: 1.15, 95%CI: 0.89 to 1.42, P < 0.001), and SIRI-2 (different to the expert responses; mean: -4.78, 95%CI: -6.18 to -3.38, P < 0.001). Significant improvements were found on all Attitudes Toward Suicide Questionnaire subscale scores, except Unjustified Behavior. The effect of training was influenced by experience of suicide-prevention training and experience of working with suicidal patients. CONCLUSION: The training program (which was developed to implement and disseminate evidence-based suicide-prevention measures) improved attitudes, self-efficacy, and skills for suicide prevention among medical personnel. Specialized suicide-prevention training and experience with suicidal patients are valuable for enhancing positive attitudes and self-efficacy; furthermore, age and clinical experience alone are insufficient for these purposes.


Asunto(s)
Actitud del Personal de Salud , Manejo de Caso , Práctica Clínica Basada en la Evidencia/educación , Conocimientos, Actitudes y Práctica en Salud , Personal de Salud/educación , Intento de Suicidio/prevención & control , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Competencia Profesional , Desarrollo de Programa , Evaluación de Programas y Proyectos de Salud , Autoeficacia
2.
Int Psychogeriatr ; 30(5): 641-646, 2018 05.
Artículo en Inglés | MEDLINE | ID: mdl-29113604

RESUMEN

ABSTRACTTau deposits in Alzheimer's disease and corticobasal syndrome have been reported using 18F-THK-5351 positron emission tomography (PET). To our knowledge, our study is the first to demonstrate tau deposits in patients with frontotemporal lobe degeneration (FTLD), using 18F-THK-5351 PET. This case report presents two patients, both of whom showed positive Tau deposition using 18F-THK-5351 PET. One patient was diagnosed with semantic variant primary progressive aphasia (PPA) and the other diagnosed with logopenic variant PPA. Our results suggest an association in the pathology of Alzheimer's disease, corticobasal syndrome, and FTLD, and could plan more effective clinical care in advance.


Asunto(s)
Enfermedad de Alzheimer/metabolismo , Afasia Progresiva Primaria/metabolismo , Encéfalo/metabolismo , Degeneración Lobar Frontotemporal/metabolismo , Proteínas tau/metabolismo , Anciano , Enfermedad de Alzheimer/diagnóstico por imagen , Aminopiridinas , Afasia Progresiva Primaria/diagnóstico por imagen , Encéfalo/diagnóstico por imagen , Femenino , Degeneración Lobar Frontotemporal/diagnóstico por imagen , Humanos , Persona de Mediana Edad , Pruebas Neuropsicológicas , Tomografía de Emisión de Positrones , Quinolinas , Trazadores Radiactivos
3.
Psychogeriatrics ; 16(3): 216-221, 2016 May.
Artículo en Inglés | MEDLINE | ID: mdl-26115081

RESUMEN

Multiple system atrophy (MSA) is a sporadic, rapidly progressive neurodegenerative disorder characterized by autonomic dysfunction combined with parkinsonism or cerebellar ataxia. Patients with MSA typically suffer from cognitive disorders and rapid eye movement sleep behaviour disorder. 18 F-fluorodeoxyglucose-positron emission tomography is used to assess MSA. However, the relationship between the clinical features and findings on 18 F-fluorodeoxyglucose-positron emission tomography in patients with MSA has not yet been investigated. Here we report a case of possible early-stage cerebellar-type MSA. We concluded that cerebellar-type MSA or other factors, such as rapid eye movement sleep behaviour disorder or obstructive sleep apnoea cognitive impairment, could appear before changes are visible on 18 F-fluorodeoxyglucose-positron emission tomography images. Additionally, we concluded that the cognitive impairment could derive from cerebellar-type MSA itself, not from other factors such as rapid eye movement sleep behaviour disorder or sleep apnoea syndrome.

5.
Nihon Rinsho ; 71(10): 1810-5, 2013 Oct.
Artículo en Japonés | MEDLINE | ID: mdl-24261212

RESUMEN

Olfaction of even healthy elderly people is impaired, compared to younger people. This might lead to preference for food in elderly people. Patients having dementia have been reported to show several types of features in eating, according to types of dementia. For example, patients having dementia of Alzheimer's type often show olfaction impairment. Patients having dementia with Lewy bodies often show swallowing problems. Patients having frontotemporal dementia often suffer from binge eating. These features should be considered in caring for patients with dementia.


Asunto(s)
Demencia/fisiopatología , Conducta Alimentaria , Anciano , Demencia Frontotemporal/fisiopatología , Humanos , Enfermedad por Cuerpos de Lewy/fisiopatología
8.
Sci Rep ; 12(1): 287, 2022 01 07.
Artículo en Inglés | MEDLINE | ID: mdl-34997139

RESUMEN

Gamma oscillations probed using auditory steady-state response (ASSR) are promising clinical biomarkers that may give rise to novel therapeutic interventions for schizophrenia. Optimizing clinical settings for these biomarker-driven interventions will require a quick and easy assessment system for gamma oscillations in psychiatry. ASSR has been used in clinical otolaryngology for evoked response audiometry (ERA) in order to judge hearing loss by focusing on the phase-locked response detectability via an automated analysis system. Herein, a standard ERA system with 40- and 46-Hz ASSRs was applied to evaluate the brain pathophysiology of patients with schizophrenia. Both ASSRs in the ERA system showed excellent detectability regarding the phase-locked response in healthy subjects and sharply captured the deficits of the phase-locked response caused by aberrant gamma oscillations in individuals with schizophrenia. These findings demonstrate the capability of the ERA system to specify patients who have aberrant gamma oscillations. The ERA system may have a potential to serve as a real-world clinical medium for upcoming biomarker-driven therapeutics in psychiatry.


Asunto(s)
Audiometría de Respuesta Evocada , Encéfalo/fisiopatología , Potenciales Evocados Auditivos , Ritmo Gamma , Esquizofrenia/diagnóstico , Estimulación Acústica , Adulto , Anciano , Estudios de Casos y Controles , Femenino , Humanos , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Esquizofrenia/fisiopatología , Factores de Tiempo , Adulto Joven
9.
Sci Rep ; 12(1): 11327, 2022 07 05.
Artículo en Inglés | MEDLINE | ID: mdl-35790750

RESUMEN

Impaired gamma oscillations found in a 40-Hz auditory steady-state response (ASSR) in patients with schizophrenia are the robust findings that can be used for future biomarker-based therapeutics. To apply these significant observations into the clinical practice, a clinical system for evoked response audiometry (ERA) may be available. In this study, the delayed 40-Hz ASSR, which was reported as a potent biomarker for schizophrenia, was examined using the ERA system in patients with schizophrenia and its clinical relevance was investigated. The phase of ASSR was significantly delayed in patients with schizophrenia compared with the healthy subjects. The delayed phase was associated with severity of the disease symptoms in the patients. A phase delay with aging was found in healthy subjects, but not in patients with schizophrenia. These findings show availability of the ERA system to identify the delayed 40-Hz ASSR and its clinical implication in patients with schizophrenia. Further applications of the ERA system in clinical psychiatry are warranted in developing biological assessments of schizophrenia with 40-Hz ASSR.


Asunto(s)
Esquizofrenia , Audiometría de Respuesta Evocada , Biomarcadores , Potenciales Evocados Auditivos/fisiología , Humanos , Modalidades de Fisioterapia , Esquizofrenia/complicaciones , Esquizofrenia/diagnóstico
10.
Psychiatry Res ; 185(1-2): 16-9, 2011 Jan 30.
Artículo en Inglés | MEDLINE | ID: mdl-20537399

RESUMEN

To examine the association of PPP3CC (rs10108011 and rs2461491) and EGR3 (rs3750192) single-nucleotide polymorphisms (SNPs) with Japanese schizophrenia, we performed a case-control association study using 337 patients and 369 healthy controls. As a result, by our moderated cohort-size study, PPP3CC and EGR3 are not genetic risk factors for schizophrenia, whereas meta-analysis showed weak association of rs10108011 with schizophrenia in the Japanese population (odds ratio (OR)=1.12, P=0.01).


Asunto(s)
Calcineurina/genética , Proteína 3 de la Respuesta de Crecimiento Precoz/genética , Predisposición Genética a la Enfermedad/genética , Polimorfismo de Nucleótido Simple/genética , Esquizofrenia/genética , Adulto , Anciano , Pueblo Asiatico/genética , Estudios de Casos y Controles , Comparación Transcultural , Femenino , Frecuencia de los Genes , Estudio de Asociación del Genoma Completo , Genotipo , Humanos , Desequilibrio de Ligamiento , Masculino , Metaanálisis como Asunto , Persona de Mediana Edad
11.
Front Psychiatry ; 12: 704506, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34475831

RESUMEN

Spontaneous brain activity occurs at rest, as represented by the default mode network. A resting paradigm is suitable for investigating brain function of patients with psychiatric diseases who may have difficulties adhering to goal-oriented tasks. Evidence accumulated in neuroimaging studies using functional magnetic resonance imaging has shown that the resting cerebral blood flow is impaired in psychiatric diseases. Near-infrared spectroscopy (NIRS), a simple neuroimaging modality, is an optimal tool for the resting paradigm, because it can offer a comfortable environment for measurement. Recent NIRS studies have demonstrated some promising data of altered resting activity in the prefrontal cortex of patients with schizophrenia, which may be exploited to develop further applications of NIRS in clinical psychiatry. Based on these findings, we emphasize the benefits of NIRS for assessing the prefrontal pathophysiology during the resting state and some methodological issues to be noted while analyzing cerebral blood flow using NIRS; moreover, we focus on interpreting these changes based on the complex nature of the spontaneous brain activity during resting state.

12.
J Med Case Rep ; 15(1): 272, 2021 May 26.
Artículo en Inglés | MEDLINE | ID: mdl-34034805

RESUMEN

BACKGROUND: Alzheimer's disease is a neurodegenerative disease involving the deposition of pathologic amyloid-ß and tau protein in the cerebral cortex. Alzheimer's disease is commonly characterized by progressive impairment of recent memory. Primary progressive aphasia is also often observed in patients with Alzheimer's disease. Moreover, language-associated symptoms, such as primary progressive aphasia, are diverse and varied in Alzheimer's disease. However, nonfluent/agrammatic variant primary progressive aphasia is not generally considered a symptom of Alzheimer's disease. To date, there has been no longitudinal study of primary progressive aphasia in Japanese-speaking patients or in patients speaking other languages with pathologically diagnosed Alzheimer's disease. Here we present a longitudinal study of primary progressive aphasia in a Japanese patient pathologically diagnosed with Alzheimer's disease. CASE PRESENTATION: A 75-year-old Japanese man, whose wife reported that his memory was impaired, also suffered from suspected aphasia. He was pathologically diagnosed with Alzheimer's disease using 11C-Pittsburgh compound-B positron emission tomography and 18F-THK5351 positron emission tomography. Based on clinical observation and the results of the Japanese standard language test of aphasia, he was also diagnosed with nonfluent/agrammatic variant primary progressive aphasia. During the subsequent 2 years, his cognitive impairment, aphasia, and behavioral and psychological symptoms of dementia progressed. Furthermore, progression of pathologic amyloid-ß and tau protein deposition was revealed through 11C-Pittsburgh compound-B positron emission tomography and 18F-THK5351 positron emission tomography. Although the results of [123I] iodoamphetamine single-photon emission computed tomography suggested corticobasal degeneration, this was not observed on the [123I] FP-CIT single-photon emission computed tomography (SPECT) (DaTscan). A previous study had reported that Alzheimer's disease with a nonfluent/agrammatic variant primary progressive aphasia was accompanied by corticobasal degeneration; however, this was not true in our case. CONCLUSIONS: This is possibly the first longitudinal study of nonfluent/agrammatic variant primary progressive aphasia in a Japanese-speaking patient with pathologically diagnosed Alzheimer's disease, but without corticobasal degeneration.


Asunto(s)
Enfermedad de Alzheimer , Afasia Progresiva Primaria , Enfermedades Neurodegenerativas , Anciano , Enfermedad de Alzheimer/complicaciones , Enfermedad de Alzheimer/diagnóstico por imagen , Afasia Progresiva Primaria/complicaciones , Afasia Progresiva Primaria/diagnóstico por imagen , Humanos , Estudios Longitudinales , Masculino , Pruebas Neuropsicológicas , Tomografía de Emisión de Positrones , Tomografía Computarizada por Rayos X
13.
Artículo en Inglés | MEDLINE | ID: mdl-32889030

RESUMEN

BACKGROUND: Patients with remitted major depressive disorder (rMDD) generally rely on maladaptive coping strategies for stressful situations. These maladaptive copings are associated with an elevated relapse risk of rMDD; however, their neural basis remains poorly understood. METHODS: We enrolled (1) 45 patients with rMDD (17-item Hamilton Depression Rating Scale [HRSD17] total score ≤ 3) and (2) 56 healthy controls (HCs). Coping styles were measured using the Coping Inventory for Stressful Situations (CISS) according to three coping dimensions: avoidance-, emotion-, and task-oriented copings. The cognitive strategic processes of the prefrontal cortex were measured using a verbal fluency task (VFT). Furthermore, regional frontotemporal hemodynamic responses were monitored by near-infrared spectroscopy (NIRS). RESULTS: Patients with rMDD had significantly lower task-oriented coping scores and significantly higher avoidance- and emotion-oriented coping scores than HCs. Predominantly in the left frontotemporal region, patients with rMDD had lower frontotemporal hemodynamic responses during a VFT than HCs. Hemodynamic responses in the right inferior frontal gyrus of patients with rMDD were significantly and negatively associated with avoidance-oriented coping scores, but not of HCs. Conversely, those responses of HCs were significantly and positively associated with task-oriented coping scores, but not of patients with rMDD. DISCUSSION: Alteration in the right inferior frontal cortex plays an important role in dysfunction to stress response in patients with rMDD. Differential functioning patterns of the right inferior frontal cortex associated with coping strategies may link to MDD recurrence vulnerability.


Asunto(s)
Adaptación Psicológica/fisiología , Trastorno Depresivo Mayor/metabolismo , Trastorno Depresivo Mayor/psicología , Corteza Prefrontal/fisiología , Remisión Espontánea , Adulto , Estudios Transversales , Trastorno Depresivo Mayor/diagnóstico , Femenino , Humanos , Masculino , Persona de Mediana Edad , Espectroscopía Infrarroja Corta/métodos
14.
Neuropsychiatr Dis Treat ; 17: 821-833, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33776438

RESUMEN

PURPOSE: This study aimed to describe real-world treatment patterns and medication adherence among patients with bipolar disorder (BD) in Japan. PATIENTS AND METHODS: Adult patients with a BD diagnosis were identified between July 2013 and February 2018, using an employment-based health insurance claims database from the JMDC Inc. Treatment patterns of target drugs (mood stabilizers, antipsychotics) and adherence (measured by the proportion of days covered [PDC]) were assessed during the first- through third-year follow-up. Adherence was also assessed for patient subgroups. RESULTS: The analyzed population included 13,788 patients with BD. They were mostly prescribed sodium valproate, lithium, or aripiprazole (range: 21.1-27.4%) across 3 years of follow-up, whereas lamotrigine was prescribed to 11.2-12.8% of patients. Benzodiazepines (70-87%) and antidepressants (52-71%) were commonly prescribed during all three follow-up periods. The mean PDC among all patients with BD was 0.51 during the first and increased to 0.61 during the third year. The mean PDC was 0.42 (first year) in patients aged <30 years and 0.49 in those aged 30-40 years. The PDC was 0.44-0.61 (depending on the drug class) in those who were prescribed a single-class target drug and 0.68-0.83 in those prescribed two drug classes concomitantly. CONCLUSION: This study documented generally low medication adherence among patients with BD, and those at young age. These patients may require more attention.

15.
Clin Case Rep ; 9(7): e04482, 2021 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-34257988

RESUMEN

A patient with Alzheimer's disease (AD) pathology when cognitive impairment is detected tends to be diagnosed with AD. However, before diagnosing, we make an effort to exclude other diseases, for example, carcinoma.

16.
J Med Case Rep ; 14(1): 5, 2020 Jan 09.
Artículo en Inglés | MEDLINE | ID: mdl-31915061

RESUMEN

BACKGROUND: The Landscape Montage Technique was originally developed by Hisao Nakai, a Japanese psychiatrist, to pursue the possibility and application of a psychotherapeutic approach using drawing for patients with schizophrenia. Drawing was initially adopted to evaluate patients with an impaired ability for verbal expression, particularly for the diagnosis and treatment of patients with schizophrenia. Since its development, the Landscape Montage Technique has been utilized in various clinical settings throughout Japan. This study aimed to evaluate the psychiatric conditions of a patient diagnosed as having primary progressive aphasia using the Landscape Montage Technique at a 3-year follow-up. CASE PRESENTATION: We present the case of a 64-year-old, right-handed Japanese woman initially diagnosed as having logopenic variant primary progressive aphasia or logopenic aphasia. At a 3-year follow-up, logopenic aphasia progressed to behavioral variant frontotemporal dementia or frontotemporal dementia. According to her husband, she began to have speech difficulties approximately 5 years before her first visit. The results of neurocognitive tests suggested mild cognitive impairment or early stages of dementia. Her clinical dementia rating score was 0.5, suggesting a diagnosis of mild cognitive impairment. She had a Raven's Colored Progressive Matrices score of 31 out of 36, which indicated a nonverbal cognitive ability that was greater than the 90th percentile for her age. The Japanese Standard Language Test of Aphasia, which was performed at two points during the follow-up, indicated the possibility for a diagnosis of primary progressive aphasia given the progression of her aphasia. Based on her clinical symptoms and Japanese Standard Language Test of Aphasia results, a diagnosis of logopenic variant primary progressive aphasia was established. Magnetic resonance imaging revealed severe predominant left frontal and anterior temporal atrophy, as well as bilateral parietal atrophy. Amyloid beta deposition was negative. At the 3-year follow-up, logopenic variant primary progressive aphasia had progressed to behavioral variant frontotemporal dementia. However, the Landscape Montage Technique allowed for the diagnosis of behavioral variant frontotemporal dementia only 2 years after baseline. CONCLUSIONS: The present study showed that the Landscape Montage Technique can be useful for diagnosing behavioral variant frontotemporal dementia that starts as logopenic variant primary progressive aphasia at earlier stages.


Asunto(s)
Afasia Progresiva Primaria/clasificación , Afasia Progresiva Primaria/diagnóstico , Demencia Frontotemporal/diagnóstico , Pruebas Neuropsicológicas , Corteza Cerebral/diagnóstico por imagen , Femenino , Humanos , Japón , Persona de Mediana Edad , Factores de Tiempo
17.
Neuropsychiatr Dis Treat ; 16: 1695-1704, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32764945

RESUMEN

OBJECTIVE: Comorbid anxiety disorders in patients with mood disorders have a negative impact on outcomes, such as persistence of depressive symptoms, deterioration of quality of life (QoL), increased suicide risk, mood instability with antidepressant treatment, but often go underrecognized in clinical practice. To identify features useful for supporting the confirmation of comorbid anxiety disorders, we investigated the prevalence of comorbid anxiety disorders and their associated factors in Japanese patients with mood disorders using data from our previously reported JET-LMBP study. PATIENTS AND METHODS: Patients with bipolar disorder (BD; n=114) and patients with major depressive disorder (MDD; n=334), all with major depressive episodes (DSM-IV-TR) were analyzed. Comorbid anxiety disorders were confirmed using the Mini-International Neuropsychiatric Interview. Demographic and clinical features were assessed using patient background forms, including the Quick Inventory of Depressive Symptomatology-Self Report Japanese version, 36-Item Short-Form Health Survey (SF-36), and Child Abuse and Trauma Scale (CATS). Multivariate logistic regression analysis adjusted for age, sex, and severity of depressive symptoms was used to identify factors associated with comorbid anxiety disorders (post hoc analysis). RESULTS: The prevalence of comorbid anxiety disorders was significantly higher in patients with BD (53.2%) than in patients with MDD (37.2%). Factors associated with comorbid anxiety disorders in BD included no spouse, interpersonal rejection sensitivity, higher CATS sexual abuse scores, and lower SF-36 mental component summary scores. In MDD, factors included hypersomnia, pathological guilt feelings, higher CATS neglect scores, and lower SF-36 physical component summary scores. CONCLUSION: Comorbid anxiety disorders were commonly seen in Japanese patients with mood disorders. Childhood abuse, atypical depression symptoms, and deterioration of health-related QoL were commonly associated with comorbid anxiety disorders in BD and MDD, suggesting that the presence of these features may be useful to support the confirmation of comorbid anxiety disorders in these patients.

18.
Psychiatry Res ; 290: 113054, 2020 08.
Artículo en Inglés | MEDLINE | ID: mdl-32480116

RESUMEN

Aggressiveness is a clinical concern in the stable phase of schizophrenia, as well as in the acute phase. The factors that affect aggressiveness during the stable phase remain unclear. This study investigated factors associated with aggressiveness in patients with stable schizophrenia. Sixty-six patients with schizophrenia who were in the stable phase without acute exacerbation were assessed for aggressiveness using the Buss-Perry Aggression Questionnaire; impulsivity using the Barratt Impulsiveness Scale Version 11, psychotic symptoms using the five-factor model of the Positive and Negative Syndrome Scale (PANSS) including positive symptoms, negative symptoms, disorganization, excitement, and emotional distress; and prefrontal hemodynamic responses using near-infrared spectroscopy. Multivariate regression analyses showed that the excitement factor of the PANSS five-factor model, which comprised four PANSS items (poor impulse control, hyperactivity, hostility, and uncooperativeness), and delayed prefrontal hemodynamic responses were associated with elevated aggressiveness. These findings suggest that in patients with stable schizophrenia, excitement symptoms and prefrontal dysfunction are associated with elevated aggressiveness. Furthermore, the impact of impulsive traits on aggressiveness is less relevant. Our results shed light on a specific aspect of aggressiveness in patients with stable schizophrenia and may indicate factors to consider in the clinical setting.


Asunto(s)
Agresión/psicología , Corteza Prefrontal/diagnóstico por imagen , Escalas de Valoración Psiquiátrica , Esquizofrenia/diagnóstico por imagen , Psicología del Esquizofrénico , Adulto , Agresión/fisiología , Estudios Transversales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Corteza Prefrontal/metabolismo , Escalas de Valoración Psiquiátrica/normas , Agitación Psicomotora/diagnóstico por imagen , Agitación Psicomotora/psicología , Esquizofrenia/metabolismo , Espectroscopía Infrarroja Corta/métodos , Encuestas y Cuestionarios , Adulto Joven
19.
J Med Case Rep ; 14(1): 139, 2020 Sep 03.
Artículo en Inglés | MEDLINE | ID: mdl-32878644

RESUMEN

BACKGROUND: Developmental disorder and dementia in older adults have been considered unrelated clinical entities because their timing of diagnosis differs greatly; however, recent studies have suggested an association between them. This case describes a middle-aged patient with language disorder exhibiting progressive amnestic cognitive impairment. CASE PRESENTATION: A 44-year-old Japanese man with long-term language dysfunction presented for his first-ever medical evaluation at age 36 years. Although his conversational ability had been impaired since childhood, he was able to graduate from secondary school and gain unskilled employment. At age 36 years, however, his workplace environment became more stressful, which led to behavioral problems that necessitated medical consultation. He consulted two psychiatrists in vain. At age 44 years, the third attending psychiatrist examined him in detail. The major component of his language disorder was amnestic cognitive impairment in the language domain as shown by logical memory subtests of the Wechsler Memory Scale-Revised. Magnetic resonance imaging showed normal findings for his age and no small vessel disease. Global cerebral hypoperfusion versus cerebellar blood flow was shown on (123I) iodoamphetamine single-photon emission computed tomography, and amyloid-ß deposition was negative on positron emission tomography with 11C-Pittsburgh compound B. Pathologic tau accumulation was negative on 18F-THK5351 positron emission tomography imaging. Laboratory tests show no infections, no vitamin deficiencies, and no other diseases that may cause dementia. Clinical features, results of neurocognitive tests and neuroimaging studies showed no well-known neurodegenerative diseases. Collectively, he was diagnosed with language disorder based on the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition criteria. Over a 2-year follow-up period, amnestic cognitive impairment in visual and language domains progressed in parallel with global cerebral hypoperfusion. CONCLUSION: This case suggests a possible link between language disorder as defined by Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition criteria and progressive amnestic cognitive impairment in middle age, which may ultimately lead to dementia, derived from a neurodegenerative disease.


Asunto(s)
Disfunción Cognitiva , Trastornos del Desarrollo del Lenguaje , Enfermedades Neurodegenerativas , Adulto , Anciano , Encéfalo , Niño , Disfunción Cognitiva/complicaciones , Disfunción Cognitiva/diagnóstico , Humanos , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Pruebas Neuropsicológicas , Tomografía de Emisión de Positrones , Tomografía Computarizada por Rayos X
20.
Sci Rep ; 10(1): 9569, 2020 06 12.
Artículo en Inglés | MEDLINE | ID: mdl-32533029

RESUMEN

In functional imaging, accumulating evidence suggests that spontaneous activity decreases during the resting state in the core brain regions of the default-mode network [e.g. medial prefrontal cortex (mPFC)] in schizophrenia. However, the significance of this decreased activity has not been clarified in relation to its clinical symptoms. In this study, near-infrared spectroscopy (NIRS), which is a simple imaging modality suitable for resting state paradigm, was used to evaluate the intensity of the spontaneous activity during the resting state in chronic schizophrenia. Consistent with previous findings of fMRI studies, spontaneous activity decreased in the mPFC of patients with schizophrenia. In addition, the decreased spontaneous activity was associated with severe hallucinations in this region where reality monitoring is fundamentally engaged. These results may encourage additional application of NIRS with the resting state paradigm into daily clinical settings for addressing the broad phenotypes and unstable course of schizophrenia.


Asunto(s)
Mapeo Encefálico/métodos , Alucinaciones/etiología , Vías Nerviosas/fisiopatología , Corteza Prefrontal/fisiopatología , Esquizofrenia/complicaciones , Espectroscopía Infrarroja Corta/métodos , Adulto , Anciano , Estudios de Casos y Controles , Enfermedad Crónica , Femenino , Alucinaciones/patología , Humanos , Masculino , Persona de Mediana Edad
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