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1.
Appl Opt ; 58(23): 6321-6324, 2019 Aug 10.
Artigo em Inglês | MEDLINE | ID: mdl-31503783

RESUMO

This study aimed to evaluate the relationship between the performance of electro-catalysis and the uniformity of molybdenum disulfide (MoS2) on carbon electrodes deposited according to three different coating methods, namely, drop-casting, brushing, and spraying. The electrochemical kinetics can be determined by how uniformly the catalyst is coated throughout the entire surface of the electrodes. Laser-induced breakdown spectroscopy was employed to investigate the uniformity and loading quantity of MoS2 on the electrode surface. The most uniform coating was achieved with the spraying method followed by brushing and drop-casting.

2.
Brain Behav Immun ; 81: 422-429, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31255678

RESUMO

AIMS: Brain-derived neurotrophic factor (BDNF) plays important roles in angiogenesis, inflammation, and neuronal plasticity. BDNF methylation has been extensively investigated in depression, but not in cardiac diseases. We asked whether BDNF methylation status is associated with a major adverse cardiac event (MACE), inflammation, and the association with depression comorbidity and its treatment in patients with acute coronary syndrome (ACS). METHODS AND RESULTS: A cross-sectional baseline study and nested 24 week double-blind escitalopram placebo-controlled trial (ClinicalTrial.gov identifier NCT00419471) were performed from 2006 to 2012, with 5-12 year follow-up for MACE. Patients with recent ACS (969 total) were divided into four groups according to depression comorbidity at baseline and treatment allocation: 591, absent depression; 127, depression on escitalopram; 128, depression on placebo; 123, depression on care as usual (CAU). BDNF methylation was measured in leucocyte DNA, and multiple demographic and clinical characteristics including interleukin 6 were evaluated as covariates at baseline. The primary outcome, time to first MACE (a composite of all-cause mortality, myocardial infarction and percutaneous coronary intervention), was investigated using Cox regression models after adjustment for covariates. Interleukin 6 level was significantly higher in patients with higher BDNF methylation values. Higher BDNF methylation was associated with increased MACE independent of confounding factors [HR (95% CI) = 1.45 (1.17-1.78)]. This association was significant in patients without depression [HR (95% CI) = 1.39 (1.01-1.90)] and depressive patients on placebo [HR (95% CI) = 1.72 (1.02-3.02)] or CAU [HR (95% CI) = 1.53 (1.01-2.61)], but not in those treated with escitalopram [HR (95% CI) = 1.00 (0.51-1.95)]. CONCLUSION: BDNF methylation was significantly associated with prognosis of ACS. Escitalopram may mitigate the deleterious effect of higher BDNF methylation in depressive patients with ACS. Further research is needed to elucidate the mechanistics and to assess the generalisability of these findings.


Assuntos
Síndrome Coronariana Aguda/metabolismo , Síndrome Coronariana Aguda/psicologia , Fator Neurotrófico Derivado do Encéfalo/genética , Depressão/genética , Síndrome Coronariana Aguda/genética , Síndrome Coronariana Aguda/patologia , Adulto , Idoso , Antidepressivos de Segunda Geração/uso terapêutico , Fator Neurotrófico Derivado do Encéfalo/metabolismo , Citalopram/uso terapêutico , Estudos Transversais , Metilação de DNA , Depressão/tratamento farmacológico , Depressão/metabolismo , Depressão/patologia , Transtorno Depressivo/tratamento farmacológico , Transtorno Depressivo/genética , Transtorno Depressivo/metabolismo , Método Duplo-Cego , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Prospectivos , Ensaios Clínicos Controlados Aleatórios como Assunto , Resultado do Tratamento
3.
Clin Psychopharmacol Neurosci ; 17(2): 279-287, 2019 May 31.
Artigo em Inglês | MEDLINE | ID: mdl-30905128

RESUMO

OBJECTIVE: : This study compared the levels of knowledge of physical illnesses and patterns of health behaviors between patients with psychosis and the general population. METHODS: : A total of 712 participants were included in the study; 292 patients with a schizophrenia spectrum disorder and 420 healthy controls matched for age and gender. Questionnaires were administered to study participants to determine the level of knowledge of chronic physical illnesses such as cancer, hypertension, and diabetes mellitus and health-related behavior. Results from the two study groups were compared to identify differences in knowledge of physical illness and health-related behaviors. RESULTS: : Compared with healthy controls, patients with psychosis were less likely to undergo regular medical check-ups and engage in exercise. Patients with psychosis had poorer knowledge of physical illnesses, and were more likely to smoke, be overweight, or have diabetes. Patients with psychosis were significantly less likely to acknowledge the importance of early detection of cancer and controlling hypertension and diabetes, independent of education and type of medical insurance. Patients who smoked were significantly less likely to agree with the statement on the relationship between smoking and physical illnesses. Patients not undergoing regular medical check-ups were significantly less likely to agree with statements concerning the need for cancer screening. CONCLUSION: : Patients with psychosis demonstrated lower levels of knowledge of physical illnesses and a lack of understanding of preventive behaviors. Low levels of knowledge were associated with poor health-related behaviors. Education of physical health should be provided to patients with psychosis.

4.
Palliat Support Care ; 17(3): 300-305, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-29806573

RESUMO

OBJECTIVE: Depressive symptoms are common in bereaved caregivers; however, there have been few prospective studies using a structured interview. This study investigated the prevalence and preloss predictors of major depressive disorder (MDD) in bereaved caregivers of patients in a palliative care unit. METHOD: This prospective cohort study collected caregiver sociodemographic and psychological data before the death of a palliative care unit patient, including MDD, care-burden, coping style, and hopeful attitude. Postloss MDD was assessed 6 and 13 months after death, and a multivariate logistic regression analysis was conducted to identify its predictors.ResultOf 305 caregivers contacted, 92 participated in this study. The prevalence of preloss MDD was 21.8%; the prevalences of postloss MDD were 34.8% and 24.7% at 6 and 13 months, respectively. Preloss MDD predicted postloss MDD at 6 months (odds ratio [OR] = 5.38, 95% confidence interval [CI95%] = 1.29, 22.43); preloss nonhopeful attitude and unemployment status of caregivers predicted postloss MDD at 13 months (OR = 8.77, CI95% = 1.87, 41.13 and OR = 7.10, CI95% = 1.28, 39.36, respectively).Significance of resultsApproximately 35% of caregivers suffered from MDD at 6 months postloss, but the prevalence of MDD decreased to about 25% at 13 months. Preloss MDD significantly predicted postloss MDD at 6 months, whereas hopeful attitude and unemployment at baseline were significantly associated with postloss MDD at 13 months.


Assuntos
Luto , Cuidadores/psicologia , Transtorno Depressivo Maior/etiologia , Prevalência , Adaptação Psicológica , Idoso , Estudos de Coortes , Transtorno Depressivo Maior/epidemiologia , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Cuidados Paliativos , Estudos Prospectivos , Psicometria/instrumentação , Psicometria/métodos , República da Coreia/epidemiologia , Estatísticas não Paramétricas , Inquéritos e Questionários , Fatores de Tempo
5.
Front Psychiatry ; 9: 606, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30510525

RESUMO

Background: The purpose of this study was to investigate whether long-term inflammation is related to the incidence of dementia in a prospective observational study. Methods: In total, 732 Korean community-dwelling elderly people >65 years were evaluated at baseline. Of the 625 without dementia, 518 (83%) were followed over a 2.4-years period, and the incidence of dementia was determined. Cytokine [interleukin (IL)-1α, IL-1ß, IL-6, IL-8, and tumor necrosis factor (TNF)-α] levels were measured at baseline and follow-up. The individual and combined effects of cytokine levels on dementia were evaluated after adjusting for potential covariates (lifestyle factors, demographics, disability, cognitive function, and presence of the APOE e4 allele) and a Bonferroni correction. Results: Incident dementia was associated with increased serum cytokine levels after 2 years; the association remained significant for TNF-α, IL1-α, and IL-1ß concentrations even after applying a Bonferroni correction. The analysis of the combined effects of the five cytokines showed independent associations between increases in the summed number of higher cytokine levels, between baseline and follow-up. However, incident dementia was not expected based on higher baseline pro-inflammatory cytokine levels. Conclusion: Our results suggest that dementia may precede changes in serum cytokine levels and inflammatory processes, rather than resulting from elevated pro-inflammatory cytokines.

6.
Nutrients ; 10(11)2018 Nov 08.
Artigo em Inglês | MEDLINE | ID: mdl-30412998

RESUMO

Iron deficiency may alter dopaminergic transmission in the brain. This study investigated whether iron metabolism is associated with negative symptoms in patients with first-episode psychosis. The study enrolled 121 patients with first-episode schizophrenia spectrum disorder, whose duration of treatment was 2 months or less. Negative symptoms were measured using the Positive and Negative Syndrome Scale (PANSS) and Clinician-Rated Dimensions of Psychosis Symptom Severity (Dimensional) scale of the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5). Prominent negative symptoms were defined as moderate or severe negative symptoms on the Dimensional scale of the DSM-5. Iron deficiency was defined as a serum ferritin ≤ 20 ng/mL. Patients with iron deficiency were significantly more likely to have prominent negative symptoms (45.2 vs. 22.2%; p = 0.014) and a higher PANSS negative symptoms score (p = 0.046) than those with normal ferritin levels. Patients with prominent negative symptoms had significantly lower ferritin levels (p = 0.025). The significance of these results remained after controlling for the duration of illness and other confounding variables. Our finding of an independent association between iron deficiency and negative symptoms in patients at the very early stage of illness implies that iron dysregulation has an effect on negative symptoms in patients with schizophrenia. The possibility of therapeutic intervention with iron should be further investigated.


Assuntos
Deficiências de Ferro , Ferro/sangue , Esquizofrenia/sangue , Adulto , Antipsicóticos/uso terapêutico , Biomarcadores/sangue , Dopamina/metabolismo , Feminino , Humanos , Masculino , Esquizofrenia/tratamento farmacológico , Esquizofrenia/patologia , Adulto Jovem
7.
Psychoneuroendocrinology ; 90: 85-91, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-29471232

RESUMO

Longitudinal associations of cytokine levels with depression are unclear. This study aimed to investigate cross-sectional and prospective associations between five serum pro-inflammatory cytokine levels and late-life depression. 732 Korean people aged 65+ were evaluated at baseline. Of 631 without depression (Geriatric Mental State schedule) at baseline, 521 (83%) were followed over a 2 year period and incident depression was ascertained. Serum tumor necrosis factor-α, interleukin (IL)-1α, IL-1ß, IL-6, and IL-8 levels were assayed at both baseline and follow-up. Associations between cytokine levels and depressive status were evaluated using linear regression models, considering potential covariates (demographics, cognitive function, disability, lifestyle factors, and vascular risk factors) and applying Bonferroni corrections. Prevalent depression at baseline was significantly associated with higher contemporaneous levels of IL-1ß and IL-8, independent of relevant covariates and after applying Bonferroni corrections. In the analyses of the five cytokine levels in combination, independent associations were found between prevalent depression and increased numbers of cytokines at higher levels at baseline. Incident depression was significantly associated with increases in IL-1ß, IL-6, and IL-8 levels during the follow-up independent of relevant covariates and after applying Bonferroni corrections. In combination analyses, incident depression was independently associated with higher numbers of cytokines showing increasing levels over the same follow-up period. However, incident depression was not predicted by higher baseline pro-inflammatory cytokine levels in any analysis. Our findings suggest that depression might affect serum cytokines alterations and lead to inflammatory processes in late-life.


Assuntos
Citocinas/sangue , Depressão/sangue , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Estudos Transversais , Feminino , Humanos , Inflamação/sangue , Interleucina-1alfa/sangue , Interleucina-1beta/sangue , Interleucina-6/sangue , Interleucina-8/sangue , Estudos Longitudinais , Masculino , Estudos Prospectivos , República da Coreia , Fator de Necrose Tumoral alfa/sangue
8.
Prog Neuropsychopharmacol Biol Psychiatry ; 80(Pt C): 250-254, 2018 Jan 03.
Artigo em Inglês | MEDLINE | ID: mdl-28689006

RESUMO

OBJECTIVE: Pro-inflammatory cytokines are associated with the development of depression and statins exert anti-inflammatory and antidepressant effects. The present study aimed to investigate associations between interleukin (IL)-6 and IL-18 and depression in patients with acute coronary syndrome (ACS) and potential interactions between statin use and pro-inflammatory cytokines on depression in this population. METHODS: We used pooled datasets from 1-year follow-up data from a 24-week randomized double-blind placebo-controlled trial (RCT) of escitalopram for treatment of depressive disorder and data from a naturalistic, prospective, observational cohort study in patients with ACS. IL-6 and IL-18 levels were measured at baseline. Logistic regression models were used to investigate independent associations of IL-6/IL-18 levels with depressive disorder at baseline and at 1year. We repeated all analyses by reference to statin use to determine whether any significant association emerged. RESULTS: Of the 969 participants, 378 (39.0%) had major or minor depression at baseline. Of 711 patients followed-up at 1year, 183 (25.7%) had depression. Logistic regression analysis showed that higher IL-6 and IL-18 levels at baseline were significantly associated with baseline depression after adjusting for other variables (adjusted p-values=0.005 and 0.001, respectively). IL-6 and IL-18 levels were also significantly higher in patients with depression at the 1-year follow-up after adjusting for other variables amongst those not taking statins (adjusted p-values=0.040 and 0.004, respectively); but this was not the case in patients taking statins. CONCLUSION: Levels of pro-inflammatory cytokines appear to predict development of depression after ACS and statins attenuate the effects of cytokines on depression.


Assuntos
Síndrome Coronariana Aguda/complicações , Síndrome Coronariana Aguda/tratamento farmacológico , Citocinas/sangue , Transtorno Depressivo/complicações , Transtorno Depressivo/tratamento farmacológico , Inibidores de Hidroximetilglutaril-CoA Redutases/farmacologia , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Mediadores da Inflamação/sangue , Síndrome Coronariana Aguda/sangue , Citalopram/uso terapêutico , Transtorno Depressivo/sangue , Método Duplo-Cego , Feminino , Humanos , Interleucina-18/sangue , Interleucina-6/sangue , Masculino , Pessoa de Meia-Idade , Estudos Observacionais como Assunto , Ensaios Clínicos Controlados Aleatórios como Assunto
9.
Gen Hosp Psychiatry ; 50: 33-37, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-28987920

RESUMO

OBJECTIVE: Although breast cancer patients' depression changes over time, most longitudinal studies have assessed the influence of only baseline depression on quality of life (QoL). Therefore, this study investigated the influence of changes in depression status on QoL in the year after surgery. METHODS: Participants were interviewed at 2-5days and at 1year after surgery. Depression was diagnosed at both time points, and participants were classified into four groups: no, recovered, incident, and persistent depression. QoL-related functioning and symptoms were evaluated with the EORTC QLQ-C30 questionnaire and the interaction of depression and QoL was analyzed using a repeated-measures analysis of covariance (RMANCOVA). RESULTS: Of the 306 participants, 247 were evaluated at 1year after surgery; 165 had no depression, 40 had recovered from depression, 24 had incident depression, and 18 had persistent depression. The RMANCOVA revealed significant time-by-group interactions; the no-depression group exhibited better recovery in general QoL and functioning, whereas the persistent-depression group showed the worst recovery. QoL and functioning improved in the recovered depression group, but worsened in the group with incident depression. CONCLUSIONS: The different impacts of changes in depression status on QoL highlight the importance of periodic screening for depression.


Assuntos
Neoplasias da Mama/psicologia , Depressão/psicologia , Transtorno Depressivo/psicologia , Qualidade de Vida/psicologia , Adulto , Idoso , Neoplasias da Mama/cirurgia , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade
10.
Oncotarget ; 8(1): 512-522, 2017 Jan 03.
Artigo em Inglês | MEDLINE | ID: mdl-27888809

RESUMO

Mesenchymal stem cell (MSC) has been applied for the therapy of allergic disorders due to its beneficial immunomodulatory abilities. However, the underlying mechanisms for therapeutic efficacy are reported to be diverse according to the source of cell isolation or the route of administration. We sought to investigate the safety and the efficacy of human adipose tissue-derived MSCs (hAT-MSCs) in mouse atopic dermatitis (AD) model and to determine the distribution of cells after intravenous administration. Murine AD model was established by multiple treatment of Dermatophagoides farinae. AD mice were intravenously infused with hAT-MSCs and monitored for clinical symptoms. The administration of hAT-MSCs reduced the gross and histological signatures of AD, as well as serum IgE level. hAT-MSCs were mostly detected in lung and heart of mice within 3 days after administration and were hardly detectable at 2 weeks. All of mice administered with hAT-MSCs survived until sacrifice and did not demonstrate any adverse events. Co-culture experiments revealed that hAT-MSCs significantly inhibited the proliferation and the maturation of B lymphocytes via cyclooxygenase (COX)-2 signaling. Moreover, mast cell (MC) degranulation was suppressed by hAT-MSC. In conclusion, the intravenous infusion of hAT-MSCs can alleviate AD through the regulation of B cell function.


Assuntos
Tecido Adiposo/citologia , Linfócitos B/citologia , Linfócitos B/fisiologia , Diferenciação Celular , Dermatite Atópica/imunologia , Dermatite Atópica/metabolismo , Células-Tronco Mesenquimais/citologia , Células-Tronco Mesenquimais/metabolismo , Animais , Células Cultivadas , Técnicas de Cocultura , Ciclo-Oxigenase 2/metabolismo , Dermatite Atópica/patologia , Dermatite Atópica/terapia , Modelos Animais de Doenças , Humanos , Masculino , Mastócitos/imunologia , Mastócitos/metabolismo , Transplante de Células-Tronco Mesenquimais , Camundongos , Transdução de Sinais , Fator de Crescimento Transformador beta1/metabolismo
11.
Sleep Med ; 24: 119-123, 2016 08.
Artigo em Inglês | MEDLINE | ID: mdl-27810177

RESUMO

BACKGROUND: Shorter or longer sleep duration has been reported to be associated with abnormal serum lipid levels, but the findings have been inconsistent. This study examined associations between sleep duration and abnormal serum lipid levels in a Korean adult population. METHODS: This study used the data of 13,609 people aged ≥20 years from the Korean National Health and Nutrition Examination Survey (KNHANES) in 2010-2012. Sleep duration was classified into five groups: ≤5, 6, 7 (reference category), 8, and ≥9 hours. The serum concentrations of total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), and triglyceride were measured and defined in terms of abnormal serum lipid levels. Multiple logistic regressions were performed to determine the associations between sleep duration and abnormal serum lipid levels. The covariates included age, sex, education, marital status, current smoking, alcohol consumption, physical activity, body mass index, hypertension, diabetes, depressive symptoms, and stress level. RESULTS: Self-reported sleep duration of ≤5 hours was significantly associated with high TC and high LDL-C levels in unadjusted models, but after adjusting for age and sex, the statistical significance disappeared. On the other hand, after adjusting for covariates, self-reported sleep duration of ≥9 h was significantly associated with low HDL-C levels (odds ratio = 1.30; 95% confidence interval = 1.09-1.54). CONCLUSIONS: These findings suggest that longer sleep duration is associated with low HDL-C levels among Korean adults.


Assuntos
LDL-Colesterol/sangue , Colesterol/sangue , Sono/fisiologia , HDL-Colesterol/sangue , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Inquéritos Nutricionais , República da Coreia , Fatores de Tempo , Triglicerídeos/sangue
12.
Oncotarget ; 7(42): 69032-69040, 2016 Oct 18.
Artigo em Inglês | MEDLINE | ID: mdl-27626182

RESUMO

We investigated roles of plasma homocysteine and MTHFR gene in relation to risks and treatment responses of depression in ACS. A sample of 969 patients with recent ACS were recruited and 711 followed 1 year later. In addition, of 378 baseline participants with depressive disorder, 255 were randomized to a 24-week double blind trial of escitalopram (N = 127) or placebo (N = 128). A higher homocysteine concentration was independently associated with prevalent depressive disorder at baseline irrespective of MTHFR genotype; and with both incident and persistent depressive disorder at follow-up only in the presence of TT genotype. MTHFR genotype was not itself associated with depressive disorder after ACS. No associations were found with 24-week antidepressant treatment responses. Plasma homocysteine could be a biomarker for depressive disorder particularly in the acute phase of ACS. Focused interventions for those with higher homocysteine level and MTHFR TT genotype might reduce the risk of later depressive disorder.


Assuntos
Síndrome Coronariana Aguda/sangue , Síndrome Coronariana Aguda/psicologia , Depressão/sangue , Depressão/complicações , Homocisteína/sangue , Síndrome Coronariana Aguda/complicações , Adulto , Idoso , Antidepressivos/uso terapêutico , Biomarcadores Tumorais/genética , Citalopram/administração & dosagem , Método Duplo-Cego , Feminino , Seguimentos , Genótipo , Humanos , Masculino , Metilenotetra-Hidrofolato Redutase (NADPH2)/genética , Pessoa de Meia-Idade , Polimorfismo Genético , Valor Preditivo dos Testes , República da Coreia
14.
J Affect Disord ; 189: 192-8, 2016 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-26451502

RESUMO

INTRODUCTION: There have been inconsistent reports on the relationships between lipids and suicidality, and studies conducted in older adults are rare. This study examined associations between serum lipid levels and suicidal ideation in an older population. METHODS: This study used data obtained from a representative Korean sample of 4265 people age 65 years or older who completed a self-administered questionnaire about suicidal ideation over the last year. The fasting serum concentrations of total cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, and triglycerides were measured and categorized into lower, intermediate (reference), and upper quartiles. A complex sample logistic regression stratified by gender was performed to determine the associations between serum lipid levels and suicidal ideation after controlling for covariates including age, education, marital status, current smoking, alcohol drinking, body mass index, hypertension, diabetes, diagnosed depression, antidepressant use, and lipid-lowering therapies. RESULTS: In this study, the prevalence of suicidal ideation in an older Korean population was 22.9% (SE=0.9%). The prevalence was significantly higher in women than in men, 27.7% (1.2%) vs. 15.9% (1.1%) respectively. After adjusting for covariates, lower triglyceride levels were significantly associated with a decreased risk of suicidal ideation (OR=0.65; 95% CI=0.43-0.99) among men but no significant associations were observed among women. Additionally, there were no significant associations between any other measure of cholesterol levels and suicidal ideation in either men or women. LIMITATIONS: Cross-sectional design cannot infer temporality or the effects of changes in variables. CONCLUSIONS: These results support the association between lower triglyceride levels and a reduced risk of suicidal ideation among Korean men over 65. Further studies are necessary to investigate gender difference and the biological mechanism.


Assuntos
Colesterol/sangue , Ideação Suicida , Triglicerídeos/sangue , Idoso , Povo Asiático , Estudos Transversais , Feminino , Humanos , Modelos Logísticos , Masculino , República da Coreia/epidemiologia , Caracteres Sexuais
15.
Palliat Support Care ; 14(1): 5-12, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25881585

RESUMO

OBJECTIVE: To determine the influence of caregiver personality and other factors on the burden of family caregivers of terminally ill cancer patients. METHOD: We investigated a wide range of factors related to the patient-family caregiver dyad in a palliative care setting using a cross-sectional design. Caregiver burden was assessed using the seven-item short version of the Zarit Burden Interview (ZBI-7). Caregiver personality was assessed using the 10-item short version of the Big Five Inventory (BFI-10), which measures the following five personality dimensions: extroversion, agreeableness, conscientiousness, neuroticism, and openness. Patient- and caregiver-related sociodemographic and psychological factors were included in the analysis because of their potential association with caregiver burden. Clinical patient data were obtained from medical charts or by using other measures. Multivariate linear regression analysis was performed to identify the independent factors associated with caregiver burden. RESULTS: We analyzed 227 patient-family caregiver dyads. The multivariate analysis revealed that caregiver extroversion was protective against caregiver burden, whereas depressive symptoms in caregivers were related to increased burden. Neuroticism was positively correlated with caregiver burden, but this relationship was nonsignificant following adjustment for depressive symptoms. Patient-related factors were not significantly associated with caregiver burden. SIGNIFICANCE OF RESULTS: Evaluating caregiver personality traits could facilitate identification of individuals at greater risk of high burden. Furthermore, depression screening and treatment programs for caregivers in palliative care settings are required to decrease caregiver burden.


Assuntos
Cuidadores/psicologia , Efeitos Psicossociais da Doença , Neoplasias/psicologia , Personalidade , Doente Terminal/psicologia , Adaptação Psicológica , Idoso , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Inquéritos e Questionários
16.
Psychiatry Investig ; 12(4): 523-31, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26508964

RESUMO

OBJECTIVE: Brain-derived neurotrophic factor (BDNF) is investigated in depression related to medical disorders and its secretion is influenced by epigenetic factors. We investigated the association between BDNF promoter methylation and depression following mastectomy for breast cancer. METHODS: In total, 309 patients with breast cancer were evaluated 1 week after mastectomy, and 244 (79%) were followed up 1 year later. Depression was diagnosed (major or minor depressive disorder) according to DSM-IV criteria and depression severity was estimated by Montgomery-Asberg Depression Rating Scale (MADRS). We assessed BDNF promoter methylation using leukocyte DNA. The effects of BDNF methylation on depression diagnosis and severity were investigated using multivariate logistic and linear regression models, respectively. The two-way interaction between BDNF methylation and the val66met polymorphism on depression was also evaluated using multivariate logistic regression models. RESULTS: Higher BDNF methylation was independently associated with depression diagnosis and with more severe symptoms at both 1 week and 1 year after mastectomy. No significant methylation-genotype interactions were found. CONCLUSION: A role for BDNF in depression related to breast cancer was supported. Indeed, the association between depression and BDNF methylation may be useful for identifying patients who are at high risk for depression and for suggesting directions for promising drug research.

17.
Psychiatry Investig ; 12(3): 349-55, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-26207128

RESUMO

OBJECTIVE: To investigate the impact of regular cannabis use on long-term remission of mood symptoms in bipolar spectrum disorders. METHODS: The 24-month prospective observational study included patients (n=239) with bipolar I disorder and schizoaffective disorder, bipolar type. Participants were classified as regular cannabis users (three times or more per week) or non-users. The primary outcome measure was the achievement of remission on the evaluations during the 24 months. RESULTS: Of the 234 participants for whom data was available, 25 (10.7%) were regular cannabis users, and the group comprised significantly more males than females. In the total population, cannabis use was significantly associated with decreased likelihood of remission during the 24-month follow-up period. Subgroup analyses showed that cannabis use was significantly associated with lower remission rates on the Hamilton Depression Rating Scale in females (n=139) and patients prescribed mood stabilizers alone (n=151), whereas in males (n=95) and patients prescribed olanzapine and/or a mood stabilizer (n=83), cannabis use was significantly associated with lower remission rates on the Young Mania Rating Scale. Remission rates were lowest in the concurrent cannabis and tobacco smoking group (n=22) followed by the tobacco smoking only group (n=97), and the non-smoker group (n=116). The post-hoc analysis revealed that all remission rates were significantly lower in the concurrent cannabis and the tobacco smoking group compared to the non-smoker group. CONCLUSION: Cannabis use negatively affects the long-term clinical outcome in patients with bipolar spectrum disorders. A comprehensive assessment and integrated management of cannabis use are required to achieve better treatment outcomes for bipolar spectrum disorders.

18.
Int J Psychiatry Med ; 49(1): 75-94, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25838322

RESUMO

OBJECTIVE: Brain-derived neurotrophic factor (BDNF) has been considered a risk factor for suicidality. BDNF secretion is influenced by epigenetic (DNA methylation) and genetic (val66met polymorphism) profiles. We aimed to investigate the independent effects of BDNF promoter methylation status on suicidal ideation as well as the effects of its interaction with the val66met polymorphism in patients with breast cancer. METHODS: A total of279 patients with breast cancer were evaluated 1 week after breast surgery, and 244 (87%) were followed up 1 year later. Suicidal ideation was identified using the item addressing suicidal thoughts on the Beck Depression Inventory. The independent effects of BDNF methylation status on suicidal ideation at two points was investigated using multivariable logistic regression models. The two-way interactive effects of BDNF methylation status and the val66met polymorphism on suicidal ideation were also estimated using the same models. RESULTS: Increased BDNF methylation was significantly associated with suicidal ideation and depression 1 year after breast surgery, and this association was independent of potential covariates, including previous depression, current depressive symptoms, and BDNF genotype. No significant methylation-genotype interactions were found. CONCLUSIONS: The BDNF hypothesis and the epigenetic origin of suicidality in patients with breast cancer were supported. BDNF gene methylation status may be a biological marker for suicidality in patients with breast cancer.


Assuntos
Fator Neurotrófico Derivado do Encéfalo/genética , Neoplasias da Mama/genética , Neoplasias da Mama/psicologia , Regiões Promotoras Genéticas/genética , Ideação Suicida , Adulto , Alelos , Neoplasias da Mama/cirurgia , Metilação de DNA/genética , Epigênese Genética/genética , Feminino , Seguimentos , Genótipo , Humanos , Pessoa de Meia-Idade , Polimorfismo Genético/genética , República da Coreia
19.
Int J Cardiol ; 190: 114-21, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25918060

RESUMO

BACKGROUND: It has been controversial whether routine screening for depression should be recommended in all patients with acute coronary syndrome (ACS) due to lack of evidence for psychiatric as well as for cardiac outcomes. This study aimed to evaluate the result of screening for treatment and subsequent treatment of depression on one-year psychiatric outcomes in ACS. METHODS: At baseline 1152 patients with recently developed ACS were screened with the Beck Depression Inventory (BDI) and depressive disorder diagnoses were applied according to DSM-IV criteria. Of the 446 patients with depressive disorder, 300 were randomized to a 24-week double-blind trial of escitalopram or placebo, while the remaining 146 received conventional medical treatment only (MTO) without randomization. Of all baseline participants, 828 were followed up one year later. Psychiatric outcomes included BDI, Hamilton Depression Rating Scale (HAMD), Montgomery Asberg Depression Rating Scale (MADRS), Social and Occupational Functioning Assessment Scale (SOFAS) and the World Health Organization Disability Assessment Schedule-12 (WHODAS-12). RESULTS: BDI screen-positive ACS patients showed worse one-year outcomes on MADRS, SOFAS, and WHODAS scores (p-values<0.01) compared to BDI screen-negative patients. Escitalopram treatment was associated with beneficial effects compared to placebo and MTO on one-year outcomes on HAMD, MADRS and SOFAS (p-values<0.01). Of patients screening positive on the BDI, those with depressive disorder treated with escitalopram had similar outcomes to those without depressive disorder. CONCLUSIONS: Routine screening of depressive symptom in ACS patients is helpful to plan further management. Moreover, successive accurate diagnosis of depressive disorder with appropriated treatment is effective at least for psychiatric outcomes.


Assuntos
Síndrome Coronariana Aguda/diagnóstico , Síndrome Coronariana Aguda/epidemiologia , Citalopram/uso terapêutico , Transtorno Depressivo/diagnóstico , Transtorno Depressivo/epidemiologia , Escalas de Graduação Psiquiátrica , Síndrome Coronariana Aguda/tratamento farmacológico , Idoso , Transtorno Depressivo/tratamento farmacológico , Manual Diagnóstico e Estatístico de Transtornos Mentais , Método Duplo-Cego , Feminino , Seguimentos , Humanos , Masculino , Programas de Rastreamento/métodos , Pessoa de Meia-Idade , Estudos Prospectivos , Inibidores Seletivos de Recaptação de Serotonina/uso terapêutico , Resultado do Tratamento
20.
Chonnam Med J ; 51(1): 8-18, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25914875

RESUMO

Depression is prevalent in patients with physical disorders, particularly in those with severe disorders such as cancer, stroke, and acute coronary syndrome. Depression has an adverse impact on the courses of these diseases that includes poor quality of life, more functional impairments, and a higher mortality rate. Patients with physical disorders are at higher risk of depression. This is particularly true for patients with genetic and epigenetic predictors, environmental vulnerabilities such as past depression, higher disability, and stressful life events. Such patients should be monitored closely. To appropriately manage depression in these patients, comprehensive and integrative care that includes antidepressant treatment (with considerations for adverse effects and drug interactions), treatment of the physical disorder, and collaborative care that consists of disease education, cognitive reframing, and modification of coping style should be provided. The objective of the present review was to present and summarize the prevalence, risk factors, clinical correlates, current pathophysiological aspects including genetics, and treatments for depression comorbid with physical disorders. In particular, we tried to focus on severe physical disorders with high mortality rates, such as cancer, stroke, and acute coronary syndrome, which are highly comorbid with depression. This review will enhance our current understanding of the association between depression and serious medical conditions, which will allow clinicians to develop more advanced and personalized treatment options for these patients in routine clinical practice.

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