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1.
Cell ; 163(6): 1413-27, 2015 Dec 03.
Artigo em Inglês | MEDLINE | ID: mdl-26607793

RESUMO

Th17 cells play a critical role in host defense against extracellular pathogens and tissue homeostasis but can induce autoimmunity. The mechanisms implicated in balancing "pathogenic" and "non-pathogenic" Th17 cell states remain largely unknown. We used single-cell RNA-seq to identify CD5L/AIM as a regulator expressed in non-pathogenic, but not in pathogenic Th17 cells. Although CD5L does not affect Th17 differentiation, it is a functional switch that regulates the pathogenicity of Th17 cells. Loss of CD5L converts non-pathogenic Th17 cells into pathogenic cells that induce autoimmunity. CD5L mediates this effect by modulating the intracellular lipidome, altering fatty acid composition and restricting cholesterol biosynthesis and, thus, ligand availability for Rorγt, the master transcription factor of Th17 cells. Our study identifies CD5L as a critical regulator of the Th17 cell functional state and highlights the importance of lipid metabolism in balancing immune protection and disease induced by T cells.


Assuntos
Proteínas Reguladoras de Apoptose/metabolismo , Encefalomielite Autoimune Experimental/patologia , Metabolismo dos Lipídeos , Receptores Imunológicos/metabolismo , Células Th17/patologia , Animais , Diferenciação Celular , Sistema Nervoso Central/patologia , Colesterol/biossíntese , Encefalomielite Autoimune Experimental/imunologia , Ácidos Graxos Insaturados/metabolismo , Humanos , Linfonodos/patologia , Camundongos , Membro 3 do Grupo F da Subfamília 1 de Receptores Nucleares/metabolismo , Receptores Órfãos Semelhantes a Receptor Tirosina Quinase/metabolismo , Receptores Depuradores , Análise de Célula Única , Células Th17/imunologia
2.
Jpn J Clin Oncol ; 53(9): 808-822, 2023 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-37190819

RESUMO

OBJECTIVE: The Japanese Psycho-Oncology Society and the Japanese Association of Supportive Care in Cancer have recently revised the clinical practice guidelines for delirium in adult cancer patients. This article reports the process of developing the revised guidelines and summarizes the recommendations made. METHODS: The guidelines were developed in accordance with the Medical Information Network Distribution Service creation procedures. The guideline development group, consisting of multi-disciplinary members, created three new clinical questions: non-pharmacological intervention and antipsychotics for the prevention of delirium and trazodone for the management of delirium. In addition, systematic reviews of nine existing clinical questions have been updated. Two independent reviewers reviewed the proposed articles. The certainty of evidence and the strength of the recommendations were graded using the grading system developed by the Medical Information Network Distribution Service, following the concept of The Grading of Recommendations Assessment, Development, and Evaluation system. The modified Delphi method was used to validate the recommended statements. RESULTS: This article provides a compendium of the recommendations along with their rationales, as well as a short summary. CONCLUSIONS: These revised guidelines will be useful for the prevention, assessment and management of delirium in adult cancer patients in Japan.


Assuntos
Antipsicóticos , Delírio , Neoplasias , Humanos , Adulto , Delírio/etiologia , Delírio/prevenção & controle , Neoplasias/complicações , Japão
3.
Jpn J Clin Oncol ; 50(5): 586-593, 2020 May 05.
Artigo em Inglês | MEDLINE | ID: mdl-32215557

RESUMO

BACKGROUND: The Japanese Psycho-Oncology Society and Japanese Association of Supportive Care in Cancer recently launched the clinical practice guidelines for delirium in adult cancer patients. The aim of the guidelines was to provide evidence-based recommendations for the clinical assessment and management of delirium in cancer patients. This article reports the process of developing the guideline and summarizes the recommendations made. METHODS: The guidelines were developed in accordance with the Medical Information Network Distribution Service creation procedures. The guideline development group, consisting of multidisciplinary members, formulated nine clinical questions. A systematic literature search was conducted to identify relevant articles published prior to through 31 May 2016. Each article was reviewed by two independent reviewers. The level of evidence and the strength of the recommendations were graded using the grading system developed by the Medical Information Network Distribution Service, following the concept of The Grading of Recommendations Assessment, Development and Evaluation system. The modified Delphi method was used to validate the recommendation statements. RESULTS: This article provides a summary of the recommendations with rationales for each, as well as a short summary. CONCLUSIONS: These guidelines will support the clinical assessment and management of delirium in cancer patients. However, additional clinical studies are warranted to further improve the management of delirium.


Assuntos
Delírio/etiologia , Delírio/terapia , Diretrizes para o Planejamento em Saúde , Neoplasias/complicações , Guias de Prática Clínica como Assunto , Sociedades Médicas , Adulto , Antipsicóticos/uso terapêutico , Humanos , Japão , Apoio Social , Doente Terminal
4.
Nature ; 496(7446): 513-7, 2013 Apr 25.
Artigo em Inglês | MEDLINE | ID: mdl-23467085

RESUMO

TH17 cells (interleukin-17 (IL-17)-producing helper T cells) are highly proinflammatory cells that are critical for clearing extracellular pathogens and for inducing multiple autoimmune diseases. IL-23 has a critical role in stabilizing and reinforcing the TH17 phenotype by increasing expression of IL-23 receptor (IL-23R) and endowing TH17 cells with pathogenic effector functions. However, the precise molecular mechanism by which IL-23 sustains the TH17 response and induces pathogenic effector functions has not been elucidated. Here we used transcriptional profiling of developing TH17 cells to construct a model of their signalling network and nominate major nodes that regulate TH17 development. We identified serum glucocorticoid kinase 1 (SGK1), a serine/threonine kinase, as an essential node downstream of IL-23 signalling. SGK1 is critical for regulating IL-23R expression and stabilizing the TH17 cell phenotype by deactivation of mouse Foxo1, a direct repressor of IL-23R expression. SGK1 has been shown to govern Na(+) transport and salt (NaCl) homeostasis in other cells. We show here that a modest increase in salt concentration induces SGK1 expression, promotes IL-23R expression and enhances TH17 cell differentiation in vitro and in vivo, accelerating the development of autoimmunity. Loss of SGK1 abrogated Na(+)-mediated TH17 differentiation in an IL-23-dependent manner. These data demonstrate that SGK1 has a critical role in the induction of pathogenic TH17 cells and provide a molecular insight into a mechanism by which an environmental factor such as a high salt diet triggers TH17 development and promotes tissue inflammation.


Assuntos
Diferenciação Celular/efeitos dos fármacos , Proteínas Imediatamente Precoces/metabolismo , Interleucina-17/metabolismo , Proteínas Serina-Treonina Quinases/metabolismo , Cloreto de Sódio/farmacologia , Células Th17/efeitos dos fármacos , Células Th17/patologia , Animais , Encefalomielite Autoimune Experimental/induzido quimicamente , Encefalomielite Autoimune Experimental/imunologia , Encefalomielite Autoimune Experimental/metabolismo , Encefalomielite Autoimune Experimental/patologia , Proteína Forkhead Box O1 , Fatores de Transcrição Forkhead/metabolismo , Células HEK293 , Humanos , Proteínas Imediatamente Precoces/deficiência , Proteínas Imediatamente Precoces/genética , Interferon gama/biossíntese , Interferon gama/imunologia , Interleucina-17/biossíntese , Interleucina-17/imunologia , Camundongos , Fenótipo , Fosforilação/efeitos dos fármacos , Proteínas Serina-Treonina Quinases/deficiência , Proteínas Serina-Treonina Quinases/genética , Receptores de Interleucina/biossíntese , Receptores de Interleucina/imunologia , Cloreto de Sódio na Dieta/farmacologia , Células Th17/enzimologia , Células Th17/imunologia
5.
J Neuropsychiatry Clin Neurosci ; 30(4): 294-301, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30045679

RESUMO

The authors aimed to evaluate whether the clinical phenotype of delirium differs if dichotomized either by sex or age (cutoff age, 65 years old) in a pooled sample of 406 nondemented adult patients with delirium as defined by DSM-IV criteria. Delirium characteristics were measured with the Delirium Rating Scale-Revised-98 (DRS-R-98). DRS-R-98 items were subgrouped to represent subscores representing the three core domains of delirium (cognitive, higher-order thinking, and circadian), noncore accessory symptoms (psychotic and affective), and diagnostic characteristics (temporal onset, fluctuation, and physical disorder). The authors compared means of the DRS-R-98 subscores and medians of individual items. Exploratory factor analyses evaluated delirium characteristics for each subgroup for each of the four groups-male, female, nongeriatric, and geriatric-while taking into account active medical diagnoses. Males had higher scores on motor agitation and affective lability (behavioral), whereas females had a higher frequency of hypoactive delirium. Delirium had a two-factor structure that emerged in all four study groups, and all its core domains loaded (i.e., correlated together) onto some of these two factors and with circadian domain correlating with accessory symptoms. Although the influence of a variety of active diagnoses on delirium was small and complex, traumatic brain injury had a clear influence on cognitive domain and abrupt onset. Age had a mild influence over delirium characteristics for both males and females. In conclusion, the authors confirmed a two-factor structure for delirium phenomenology, regardless of age and sex, with few significant differences between etiological groups.


Assuntos
Delírio/classificação , Manual Diagnóstico e Estatístico de Transtornos Mentais , Fenótipo , Escalas de Graduação Psiquiátrica/estatística & dados numéricos , Fatores Etários , Idoso , Estudos Transversais , Feminino , Humanos , Masculino , Fatores Sexuais
6.
Int Psychogeriatr ; 28(6): 1041-50, 2016 06.
Artigo em Inglês | MEDLINE | ID: mdl-26775666

RESUMO

BACKGROUND: There is little expert consensus as to which drugs should comprise the first-line pharmacological treatment for delirium. We sought to assess experts' opinions on the first-line oral and injection drugs for delirium associated with a diverse range of clinical features using a rating-based conjoint analysis. METHODS: We conducted a cross-sectional study. We mailed a questionnaire to all consultation-liaison psychiatrists/educators certified by the Japanese Society of General Hospital Psychiatry. RESULTS: Of 136 experts (response rate: 27.5%), more than 68% recommended the use of risperidone or quetiapine administered orally for hyperactive delirium, except in patients with comorbid diabetes and renal dysfunction. More than 67% recommended the use of haloperidol administered intravenously for hyperactive delirium if an intravenous line has been placed. No oral or injection drugs were recommended by over half of experts for treatment of hypoactive delirium with any clinical features. CONCLUSIONS: In the absence of a definitive treatment trial, there are both areas of agreement and a lack of consensus regarding the first-line drug. Efforts are needed to routinely collect information that would allow a comparison of the effectiveness and safety of various drugs in real-world clinical practice.


Assuntos
Antipsicóticos/uso terapêutico , Delírio/tratamento farmacológico , Risperidona/uso terapêutico , Idoso , Estudos Transversais , Prova Pericial , Feminino , Humanos , Japão , Masculino , Guias de Prática Clínica como Assunto , Inquéritos e Questionários
7.
Chudoku Kenkyu ; 29(4): 355-359, 2016 Dec.
Artigo em Inglês, Japonês | MEDLINE | ID: mdl-30461232

RESUMO

Helium is a colorless, tasteless, and odorless gas that is used as a lifting gas for air balloons and small airships due to its high level of safety. In recent years, it has become easy to search the Internet for methods to commit suicide, and the use of helium gas for this purpose has recently been garnering attention. We report a case of a male in his 30's in which helium gas was used to commit suicide. He was found unconscious on a bed with a plastic bag covering his head. When emergency personnel arrived at the scene, he was in cardiac arrest and remained in cardiac arrest at the time of his arrival at the hospital. Continued cardiopulmonary resuscitation resulted in a return of spontaneous circulation. Head computed tomography showed the corticomedullary border was indistinct. Fifteen hours at the hospital, the patient died. Recently, there has been an increasing trend for suicide being performed according to methods obtained through the Internet or mass media. Although there are only a few cases of suicide by helium gas in Japan, attention must be paid to this issue as the number of such cases may increase in the future.


Assuntos
Hélio/intoxicação , Suicídio , Adulto , Evolução Fatal , Humanos , Masculino
8.
J Neuropsychiatry Clin Neurosci ; 27(2): e122-7, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25923855

RESUMO

Principal components analysis applied to the Delirium Rating Scale-Revised-98 contributes to understanding the delirium construct. Using a multisite pooled international delirium database, the authors applied confirmatory factor analysis to Delirium Rating Scale-Revised-98 scores from 859 adult patients evaluated by delirium experts (delirium, N=516; nondelirium, N=343). Confirmatory factor analysis found all diagnostic features and core symptoms (cognitive, language, thought process, sleep-wake cycle, motor retardation), except motor agitation, loaded onto factor 1. Motor agitation loaded onto factor 2 with noncore symptoms (delusions, affective lability, and perceptual disturbances). Factor 1 loading supports delirium as a single construct, but when accompanied by psychosis, motor agitation's role may not be solely as a circadian activity indicator.


Assuntos
Delírio/diagnóstico , Análise de Componente Principal , Escalas de Graduação Psiquiátrica , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos Transversais , Delírio/epidemiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos
9.
Ann Clin Psychiatry ; 27(1): 38-43, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25696780

RESUMO

BACKGROUND: The financial and treatment challenges of complex patients must be addressed with adequate assessment and evaluation. The INTERMED complexity instrument (INTERMED) has been developed for this purpose, but to date has not been used retrospectively. The current study represents a retrospective validity investigation of INTERMED with patients with substance use disorder comorbid with other psychiatric and medical conditions (triple diagnoses). Such patients were expected to generate high complexity scores on the INTERMED instrument. METHODS: Information on 66 patients with triple diagnoses was submitted to the INTERMED complexity grid. These data were subjected to cluster analysis and other analytic procedures. RESULTS: Total INTERMED scores reflected elevated complexity for patients with triple diagnoses. As a group, they represented a single cluster of complex patients. CONCLUSIONS: The validity of the INTERMED complexity assessment was corroborated in relation to retrospective data. In addition to elevations in the biological domain that hospital personnel typically confront, findings related to coping deficiencies and problems in living conditions were noteworthy in requiring comprehensive interventions.


Assuntos
Doença Crônica , Transtornos Mentais/complicações , Transtornos Mentais/diagnóstico , Transtornos Relacionados ao Uso de Substâncias/complicações , Transtornos Relacionados ao Uso de Substâncias/diagnóstico , Adolescente , Adulto , Idoso , Análise por Conglomerados , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Psicometria , Reprodutibilidade dos Testes , Estudos Retrospectivos , Adulto Jovem
10.
Int J Geriatr Psychiatry ; 29(3): 253-62, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23801358

RESUMO

OBJECTIVE: Attention to risk of antipsychotics for older patients with delirium has been paid. A clinical question was whether risk of antipsychotics for older patients with delirium would exceed efficacy of those even in the general hospital setting. METHODS: A prospective observational study proceeded over a 1-year period at 33 general hospitals, where at least one psychiatrist worked full time. Subjects were patients who developed delirium during their admission due to acute somatic diseases or surgery, and who received antipsychotics for delirium. The primary outcome was rates and kinds of serious adverse events. RESULTS: Among 2834 patients who developed delirium, 2453 patients received antipsychotics, such as risperidone (34%), quetiapine (32%), and parenteral haloperidol (20%), for delirium. Out of 2453 patients, 22 serious adverse events (0.9%) were reported. Aspiration pneumonia was the most frequent (17 patients, 0.7%), followed by cardiovascular events (4 patients, 0.2%) and venous thromboembolism (1 patient, 0.0%). There was no patient with a fracture or intracranial injury due to a fall. No one died because of antipsychotic side effects. The mean Clinical Global Impressions-Improvement Scale score was 2.02 (SD 1.09). Delirium was resolved within 1 week in more than half of the patients (54%). CONCLUSIONS: In the general hospital setting under management including fine dosage adjustment and early detection of side effects, risk of antipsychotics for older patients with delirium might be low, in contrast to antipsychotics for dementia in the nursing home or outpatient settings. A point may be not how to avoid using antipsychotics but how to monitor their risk.


Assuntos
Antipsicóticos/efeitos adversos , Delírio/tratamento farmacológico , Hospitais Gerais/estatística & dados numéricos , Idoso , Idoso de 80 Anos ou mais , Antipsicóticos/uso terapêutico , Doenças Cardiovasculares/induzido quimicamente , Feminino , Humanos , Masculino , Pneumonia Aspirativa/induzido quimicamente , Estudos Prospectivos , Tromboembolia Venosa/induzido quimicamente , Ferimentos e Lesões/induzido quimicamente
11.
Int Rev Psychiatry ; 26(6): 620-8, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25553779

RESUMO

Increasing awareness of mental illness's impact on medical and psychiatric health has accelerated global efforts to integrate medical and behavioural health services. As the field of integration has advanced, numerous integrated programmes have been implemented. In examining the impact of these programmes, it is important to maintain a standardized vocabulary to describe the various components of their integration. Additionally important is examination of how these programmes impact elements of patient care and the healthcare system. Specifically, what value do they bring? This article will discuss the importance of carefully assessing the value integrated services bring to patients, and questioning whether they do so in ways in which today's segregated world of medical and behavioural health cannot. This article will also explore the various settings in which medical and behavioural integration can bring added value.


Assuntos
Prestação Integrada de Cuidados de Saúde , Prestação Integrada de Cuidados de Saúde/economia , Prestação Integrada de Cuidados de Saúde/organização & administração , Prestação Integrada de Cuidados de Saúde/normas , Humanos
12.
J Nippon Med Sch ; 91(2): 233-240, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38777784

RESUMO

BACKGROUND: Antipsychotics are commonly used to treat delirium but can adversely affect the extrapyramidal and cardiac conduction systems. Antipsychotic use has also been reported to be associated with increased mortality in older adults. Therefore, alternative and adjunct medications for delirium are necessary. We retrospectively assessed the efficacy and safety of gabapentin (GBP) as an alternative and adjunct medication for delirium. METHODS: We retrospectively investigated the records of patients with delirium treated with GBP (71 patients; median age, 81 years; interquartile range, 76-87.5 years; 54.9% males) at a general hospital. We examined duration to delirium improvement, as assessed by the Intensive Care Delirium Screening Checklist (ICDSC) and DSM-5 criteria, as well as adverse events. RESULTS: The median (interquartile range) GBP dose was 200 mg (150-350 mg) /day. A total of 71.8% and 85.9% of the patients failed to meet the diagnostic criteria for delirium at 2 days and 5 days after initial administration, respectively (p<0.05). In subgroup analysis, patients with a history of epilepsy or cerebrovascular disease responded better to GBP than did those without such histories, suggesting that patients with abnormal/borderline neuronal activity respond to GBP even though they do not exhibit seizures. GBP did not induce extrapyramidal symptoms, cardiac conduction disturbances, hyperglycemia, or epilepsy but caused sleepiness and myoclonus. CONCLUSIONS: GBP may improve delirium with fewer adverse effects and may be a safe alternative or adjunct treatment for delirium. Dosage adjustment may be necessary to prevent sleepiness.


Assuntos
Delírio , Gabapentina , Humanos , Gabapentina/administração & dosagem , Gabapentina/uso terapêutico , Gabapentina/efeitos adversos , Delírio/tratamento farmacológico , Estudos Retrospectivos , Masculino , Idoso , Feminino , Idoso de 80 Anos ou mais , Resultado do Tratamento , Ácido gama-Aminobutírico/administração & dosagem , Ácido gama-Aminobutírico/efeitos adversos , Fatores de Tempo
13.
J Nippon Med Sch ; 2024 Jun 18.
Artigo em Inglês | MEDLINE | ID: mdl-38897947

RESUMO

Schizophrenia develops during adolescence. Maternal infections during the fetal period increase the incidence of schizophrenia in children, which suggests that the pathogenesis involves neuroinflammation. Here, we report a case of new-onset schizophrenia in a 16-year-old boy after COVID-19. After developing COVID-19, he entered a catatonic state 4 days later and was hospitalized. Benzodiazepines alleviated his catatonia, but hallucinations and delusions persisted. Encephalitis and epilepsy were excluded by magnetic resonance imaging (MRI), encephalography, and cerebrospinal fluid examination. Psychosis persisted after the virus titer declined and the inflammatory response subsided. Moreover, the patient exhibited delusions of control-a Schneider's first-rank symptom. Schizophrenia was diagnosed, and olanzapine improved his symptoms. He had a brief history of insomnia before COVID-19 but his symptoms did not satisfy the ultra-high-risk criteria. However, COVID-19 may have facilitated development of schizophrenia through neuroinflammation and volume reduction in the gray matter of the right medial temporal lobe. This case demonstrates that infectious diseases in adolescents should be carefully managed, to prevent schizophrenia.

14.
Psychosomatics ; 54(3): 227-38, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23218057

RESUMO

OBJECTIVE: To confirm the existence of the proposed three-core symptom domains in delirium by analyzing a dataset of nondemented adults using selected core symptoms as measured by the Delirium Rating Scale-Revised-98 (DRS-R98) scale. METHODS: Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) of proposed delirium core symptoms were conducted in a pooled international dataset of 592 delirious and nondelirious patients using DSM-IV criteria from 14 studies with comparable methodologies. Using DRS-R98 categorization, 445 had either subsyndromal or full delirium and comprised the delirium group. The dataset was divided into three independent random subsamples to perform a stepwise analysis. First we performed EFA in 100 cases to delineate latent factor loadings of DRS-R98 items selected to represent the three-core domains (circadian, higher level thinking, and cognitive). These items were then assessed using CFA-modeling (n = 246) followed by a CFA-validation (n = 246). Reliability and goodness of fit of these two CFA were assessed statistically. RESULTS: DRS-R98 items representing the proposed delirium core symptoms loaded onto one factor in the EFA, supporting their core nature. The two CFA confirmed the nature of this core factor as comprising three core domains where DRS-R98 items each loaded with high values (>0.7) onto their corresponding core domain (circadian, higher level thinking, and cognitive) with good fit and reliability. Attention was DRS-R98 item with the highest loading in CFA, followed by thought process, and then by sleep-wake cycle and motor behavior. CONCLUSIONS: Our EFA and CFA confirm and validate the proposed three-core domains of delirium, where symptoms were highly related to the domain that they were hypothesized to represent. These domains are consistent with delirium being a state of impaired consciousness, and should be considered necessary to assess whether in clinical or research settings.


Assuntos
Delírio/diagnóstico , Modelos Estatísticos , Índice de Gravidade de Doença , Adulto , Análise de Variância , Transtornos Cronobiológicos/diagnóstico , Transtornos Cognitivos/diagnóstico , Estudos Transversais , Interpretação Estatística de Dados , Delírio/fisiopatologia , Delírio/psicologia , Manual Diagnóstico e Estatístico de Transtornos Mentais , Análise Fatorial , Feminino , Humanos , Masculino , Reprodutibilidade dos Testes , Avaliação de Sintomas/estatística & dados numéricos
15.
Nihon Rinsho ; 71(10): 1738-42, 2013 Oct.
Artigo em Japonês | MEDLINE | ID: mdl-24261201

RESUMO

Delirium is an acute condition often affecting acutely ill hospitalized patients, particularly in the elderly patients. Delirium is under-detected and associated with adverse healthcare outcomes, including institutionalization and elevated mortality. In the elderly patients, delirium and dementia have overlapping features that complicate differential diagnosis. There is neither any medication approved for the treatment of delirium nor strong evidence supporting the effectiveness of medications. In the management of delirium, recent studies show that delirium prevention(i.e., multidisciplinary delirium prevention programs) leads to improved outcomes, rather than waiting for delirium to develop and then intervening.


Assuntos
Delírio/diagnóstico , Idoso , Delírio/terapia , Diagnóstico Diferencial , Humanos
16.
Gels ; 9(5)2023 May 12.
Artigo em Inglês | MEDLINE | ID: mdl-37233000

RESUMO

There are various types of gel materials used in a wide range of fields, and their gelation mechanisms are extremely diverse. Furthermore, in the case of hydrogels, there exist some difficulties in understanding complicated molecular mechanisms especially with water molecules interacting through hydrogen bonding as solvents. In the present work, the molecular mechanism of the structural formation of fibrous super-molecular gel by the low molecular weight gelator, N-oleyl lactobionamide/water mixture was elucidated using the broadband dielectric spectroscopy (BDS) method. The dynamic behaviors observed for the solute and water molecules indicated hierarchical structure formation processes in various time scales. The relaxation curves obtained at various temperatures in the cooling and heating processes showed relaxation processes respectively reflecting the dynamic behaviors of water molecules in the 10 GHz frequency region, solute molecules interacting with water in MHz region, and ion-reflecting structures of the sample and electrode in kHz region. These relaxation processes, characterized by the relaxation parameters, showed remarkable changes around the sol-gel transition temperature, 37.8 °C, determined by the falling ball method and over the temperature range, around 53 °C. The latter change suggested a structure formation of rod micelles appearing as precursors before cross-linking into the three-dimensional network of the supramolecular gels. These results clearly demonstrate how effective relaxation parameter analysis is for understanding the gelation mechanism in detail.

17.
J Acad Consult Liaison Psychiatry ; 64(3): 236-247, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36539078

RESUMO

BACKGROUND: The 3 core domains of delirium (cognitive, higher level thinking, circadian) do not include the less common noncore psychotic symptoms. However, psychosis might inform about perturbations of neural circuitry, outcomes, or suggest tailored clinical management. OBJECTIVE: We assessed relationships between psychosis and other characteristics of delirium in patients without dementia or antipsychotics treatment. METHODS: Cross-sectional analysis of 366 adults with delirium per the Delirium Rating Scale Revised-98, whose items distinguish hallucinations and delusions from other types of misperceptions and abnormal thought content, assessed during the preceding 24 hours to capture symptom severity fluctuation. The relationship of psychosis with other delirium characteristics was assessed using bivariate comparisons and analysis of variance as appropriate for groups with no psychosis and any psychosis (hallucinations and/or delusions), and subgroups with only hallucinations, only delusions, or both. A discriminant logistic model assessed variables associated with presence of any psychotic features versus none. RESULTS: Delirium with any psychotic features occurred in 44.5% (163 of 366). Of the 366, 119 (32.5%) had only hallucinations (Hall), 14 (3.8%) had only delusions (Del), and 30 (8.2%) had both (Both). In the psychotic group (n = 163), 73.0% were Hall, 8.6% Del, and 18.4% Both. All psychotic patient groupings had significantly greater delirium severity on the Delirium Rating Scale Revised-98. Delusions and hallucinations were discordant for occurring together. The discriminant model found increased odds of having psychosis as 3 symptom severities increased (visuospatial ability, thought process, and sleep-wake cycle) where these each represented a delirium core domain. The noncore symptom of lability of affect had high odds ratio for psychosis, while motor retardation reduced odds of psychosis in this model. CONCLUSIONS: Consistent with prior reports, psychosis occurred in less than half of delirious patients with delusions being infrequent, and an association with affective lability was found. Given that previous functional magnetic resonance imaging research found a correlation between neural network dysconnectivity with greater severity of delirium, psychotic symptoms might be a clinical marker for greater underlying cerebral cortical neural circuitry dysfunction.


Assuntos
Encefalopatias , Delírio , Transtornos Psicóticos , Adulto , Humanos , Delusões/diagnóstico , Delusões/psicologia , Estudos Transversais , Alucinações/epidemiologia , Transtornos Psicóticos/complicações , Delírio/epidemiologia , Delírio/diagnóstico
18.
Psychiatry Clin Neurosci ; 66(5): 411-7, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22834659

RESUMO

AIM: Antipsychotic medications have frequently been regarded as the treatment of choice for delirium. This study examined the clinical efficacy of risperidone for the treatment of delirium in cancer patients, combined with a repeated assessment of underlying medical severity levels. METHODS: The study included consecutive referrals of 29 delirious cancer patients (mean age, 68.9 ± 12.5 years; male, 69%) to the psychiatric consultation service. Risperidone was given orally once per day (mean dosage, 1.4 ± 1.3 mg/day). Study participants were assessed using quantitative standardized scales of cognitive function, delirium, and physical impairment at baseline and at the end of the study (seventh day). RESULTS: Risperidone with routine clinical management was effective for the treatment of delirium: 48% of the patients responded and 38% achieved remission. The reduction of delirium severity occurred in 79% of the patients. Changes in delirium severity were unrelated to age, gender, general cognitive dysfunction, or to severity of attendant medical conditions. In addition to changes in agitation and perceptional disturbances, risperidone was also effective for other specific delirium symptoms. CONCLUSIONS: Risperidone with routine clinical management is effective in the treatment of delirium in advanced cancer patients, independent of changes in the underlying medical condition.


Assuntos
Antipsicóticos/uso terapêutico , Delírio/tratamento farmacológico , Neoplasias/complicações , Risperidona/uso terapêutico , Idoso , Idoso de 80 Anos ou mais , Delírio/etiologia , Feminino , Alucinações/tratamento farmacológico , Alucinações/etiologia , Humanos , Masculino , Pessoa de Meia-Idade , Agitação Psicomotora/tratamento farmacológico , Agitação Psicomotora/etiologia , Transtornos do Sono do Ritmo Circadiano/tratamento farmacológico , Transtornos do Sono do Ritmo Circadiano/etiologia , Resultado do Tratamento
19.
Int J Gen Med ; 15: 6309-6313, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35924175

RESUMO

Purpose: This study aims to translate and ensure cross-cultural adaptation of a Japanese version of the INTERMED Self-Assessment Questionnaire (IMSA). Methods: A family medicine physician, a medical education specialist, a psychiatrist who prepared the Japanese version of the INTERMED, and two members of the INTERMED consortium were selected as committee members. We used the standard forward and backward translation method to translate the IMSA into Japanese. After translating the original IMSA into Japanese, all committee members discussed and reached a consensus on the proposed translation. The back-translation was performed by an English native professional translator who did not know the original text. We contacted the INTERMED consortium and asked them to review the conceptual equivalence of the back-translated Japanese version with the original version; after two reviews, the members approved the Japanese version. Thereafter, we conducted cognitive debriefings with four patients and nine healthcare professionals to ensure cross-cultural adaptation. Results: The members of the INTERMED consortium approved the use of the Japanese version. We modified some expressions and words, while retaining the original meaning, to make it easier for Japanese patients to understand. Conclusion: We developed a Japanese version of the IMSA. A future study will investigate the construct criterion-related validity and the reliability of the scale.

20.
BMJ Open ; 12(4): e051891, 2022 04 21.
Artigo em Inglês | MEDLINE | ID: mdl-35450890

RESUMO

OBJECTIVE: To clarify the factors associated with prolonged hospital stays, focusing on the COMplexity PRediction Instrument (COMPRI) score's accuracy in predicting the length of stay of newly hospitalised patients in general internal medicine wards. DESIGN: A case-control study. SETTING: Three general internal medicine wards in Chiba Prefecture, Japan. PARTICIPANTS: Thirty-four newly hospitalised patients were recruited between November 2017 and December 2019, with a final analytic sample of 33 patients. We included hospitals in different cities with general medicine outpatient and ward facilities, who agreed to participate. We excluded any patients who were re-hospitalised within 2 weeks of a prior discharge. PRIMARY AND SECONDARY OUTCOME MEASURES: Patients' COMPRI scores and their consequent lengths of hospital stay. RESULTS: The 17 patients (52%) allocated to the long-term hospitalisation group (those hospitalised ≥14 days) had a significantly higher average age, COMPRI score and percentage of participants with comorbid chronic illnesses than the short-term hospitalisation group (<14 days). A logistic regression model (model A, comprising only the COMPRI score as the explanatory variable) and a multiple logistic regression model (model B, comprising variables other than the COMPRI score as explanatory variables) were created as prediction models for the long-term hospitalisation group. When age ≥75 years, a COMPRI score ≥6 and a physician with 10 years' experience were set as explanatory variables, model A showed better predictive accuracy compared with model B (fivefold cross-validation, area under curve of 0.87 vs 0.78). The OR of a patient with a COMPRI score of ≥6 joining the long-term hospitalisation group was 4.25 (95% CI=1.43 to 12.63). CONCLUSIONS: Clinicians can use the COMPRI score when screening for complexity assessment to identify hospitalised patients at high risk of prolonged hospitalisation. Providing such patients with multifaceted and intensive care may shorten hospital stays.


Assuntos
Hospitalização , Alta do Paciente , Idoso , Estudos de Casos e Controles , Humanos , Japão , Tempo de Internação
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