Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 123
Filtrar
Más filtros

Banco de datos
País/Región como asunto
Tipo del documento
Intervalo de año de publicación
1.
Curr Psychiatry Rep ; 21(10): 105, 2019 09 21.
Artículo en Inglés | MEDLINE | ID: mdl-31541327

RESUMEN

PURPOSE OF REVIEW: We review 2016-2019 peer-reviewed literature which summarizes the factors contributing to high expense of treating depression among adults in the USA, and interventions that have been conducted to decrease depression treatment expenditures. RECENT FINDINGS: Treatment expenditures associated with depression are high and growing, driven in part by increased health care utilization and a shift toward increased insurance coverage of medications and therapies. The majority of identified articles describe the elevated financial burden associated with treating individuals with chronic medical conditions who also have a depression diagnosis. The few available studies documenting health care system-level interventions identify that multi-target treatment for comorbid illness, collaborative care management, and integration of psychiatric treatment into primary care show promise for reducing depression treatment expenditures. Additional research is needed to identify innovative, cost-effective state, and federal payer-initiated depression treatment models, and evaluation of collaborative care and integrated care models implemented to scale across multiple health care systems.


Asunto(s)
Atención a la Salud/economía , Depresión/economía , Depresión/terapia , Trastorno Depresivo/economía , Trastorno Depresivo/terapia , Gastos en Salud/estadística & datos numéricos , Adulto , Enfermedad Crónica , Humanos , Cobertura del Seguro/estadística & datos numéricos , Estados Unidos
3.
Bipolar Disord ; 23(1): 88-89, 2021 02.
Artículo en Inglés | MEDLINE | ID: mdl-32949113
5.
Ann Clin Psychiatry ; 27(2): 118-26, 2015 May.
Artículo en Inglés | MEDLINE | ID: mdl-25954938

RESUMEN

BACKGROUND: Psychosocial treatments and medications both have been shown to be effective in treating major depressive disorder. We hypothesized that cognitive-behavioral therapy (CBT) would outperform medication on measures of cognitive change. METHODS: We randomized depressed individuals to 12 weeks of CBT (n = 15) or escitalopram (n = 11). In an intent-to-treat analysis (n = 26), we conducted a repeated measures analysis of variance to examine changes in depressive symptoms (ie, 17-item Hamilton Depression Rating Scale, Beck Depression Inventory), anhedonia (ie, Snaith-Hamilton Pleasure Scale), cognitive measures (ie, Dysfunctional Attitudes Scale, Automatic Thoughts Questionnaire, Perceived Stress Scale), and quality of life (ie, Quality of Life Enjoyment and Satisfaction Questionnaire) at 4 time points: baseline, week 4, week 8, and week 12. Treatment for both groups started at baseline, and patients received either 12 weeks of individual CBT or 12 weeks of escitalopram with flexible dosing (10 to 20 mg). RESULTS: Collapsing the escitalopram and CBT groups, there were statistically significant pre-post changes on all outcome measures. However, there were no statistically significant differences between treatment groups on any of the outcome measures, including cognitive measures across time points. CONCLUSIONS: Our results suggest that both CBT and escitalopram have similar effects across a variety of domains and that, in contrast to our a priori hypothesis, CBT and escitalopram were associated with comparable changes on cognitive measures.


Asunto(s)
Citalopram/farmacología , Trastornos del Conocimiento/terapia , Terapia Cognitivo-Conductual/métodos , Trastorno Depresivo Mayor/terapia , Inhibidores Selectivos de la Recaptación de Serotonina/farmacología , Resultado del Tratamiento , Adulto , Anciano , Citalopram/administración & dosificación , Trastornos del Conocimiento/tratamiento farmacológico , Trastornos del Conocimiento/etiología , Trastorno Depresivo Mayor/complicaciones , Trastorno Depresivo Mayor/tratamiento farmacológico , Femenino , Humanos , Masculino , Persona de Mediana Edad , Inhibidores Selectivos de la Recaptación de Serotonina/administración & dosificación
6.
Ann Clin Psychiatry ; 27(2): 100-8, 2015 May.
Artículo en Inglés | MEDLINE | ID: mdl-25954936

RESUMEN

BACKGROUND: We examined whether fatigue was associated with greater symptomatic burden and functional impairment in college students with depressive symptoms. METHODS: Using data from the self-report Beck Depression Inventory (BDI), we stratified a group of 287 students endorsing significant symptoms of depression (BDI score ≥ 13) into 3 levels: no fatigue, mild fatigue, or moderate/severe fatigue. We then compared the 3 levels of fatigue across a battery of psychiatric and functional outcome measures. RESULTS: Approximately 87% of students endorsed at least mild fatigue. Students with moderate/severe fatigue had significantly greater depressive symptom severity compared with those with mild or no fatigue and scored higher on a suicide risk measure than those with mild fatigue. Students with severe fatigue evidenced greater frequency and intensity of anxiety than those with mild or no fatigue. Reported cognitive and functional impairment increased significantly as fatigue worsened. CONCLUSIONS: Depressed college students with symptoms of fatigue demonstrated functional impairment and symptomatic burden that worsened with increasing levels of fatigue. Assessing and treating symptoms of fatigue appears warranted within this population.


Asunto(s)
Depresión/fisiopatología , Fatiga/fisiopatología , Índice de Severidad de la Enfermedad , Estudiantes/psicología , Adulto , Ansiedad/epidemiología , Comorbilidad , Depresión/epidemiología , Fatiga/epidemiología , Femenino , Humanos , Masculino , Massachusetts/epidemiología , Estudiantes/estadística & datos numéricos , Suicidio/estadística & datos numéricos , Universidades , Adulto Joven
7.
J Nerv Ment Dis ; 203(10): 762-8, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-26348584

RESUMEN

Major depressive disorder is often accompanied by elevated levels of anger, hostility, and irritability, which may contribute to worse outcomes. The present study is a secondary analysis examining the role of anger/hostility in the treatment response to low-dose aripiprazole added to antidepressant therapy in 225 patients with major depressive disorder and inadequate response to antidepressant treatment. Repeated-measures model demonstrated no drug-placebo difference in treatment response across levels of anger/hostility. However, within-group analyses showed significantly lower placebo response rates in patients with high anger/hostility and a trend for lower drug response rates in patients with high anger/hostility. Pooled response rates across phases and treatments revealed a lower response rate among patients with high anger/hostility. Depressed patients with high anger/hostility demonstrate greater illness severity and lower depressive treatment response rates than patients with low anger/hostility, suggesting that patients with high anger/hostility may have poorer outcomes in response to adjunctive treatment.


Asunto(s)
Ira , Trastorno Depresivo Resistente al Tratamiento/psicología , Hostilidad , Adulto , Antidepresivos/administración & dosificación , Antidepresivos/uso terapéutico , Antipsicóticos/administración & dosificación , Antipsicóticos/uso terapéutico , Aripiprazol/administración & dosificación , Aripiprazol/uso terapéutico , Trastorno Depresivo Mayor/tratamiento farmacológico , Trastorno Depresivo Mayor/psicología , Trastorno Depresivo Resistente al Tratamiento/tratamiento farmacológico , Trastorno Depresivo Resistente al Tratamiento/etiología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Escalas de Valoración Psiquiátrica , Encuestas y Cuestionarios
8.
CNS Spectr ; 19(6): 535-46, 2014 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-25275853

RESUMEN

Current measures for major depressive disorder focus primarily on the assessment of depressive symptoms, while often omitting other common features. However, the presence of comorbid features in the anxiety spectrum influences outcome and may effect treatment. More comprehensive measures of depression are needed that include the assessment of symptoms in the anxiety-depression spectrum. This study examines the reliability and validity of the Symptoms of Depression Questionnaire (SDQ), which assesses irritability, anger attacks, and anxiety symptoms together with the commonly considered symptoms of depression. Analysis of the factor structure of the SDQ identified 5 subscales, including one in the anxiety-depression spectrum, with adequate internal consistency and concurrent validity. The SDQ may be a valuable new tool to better characterize depression and identify and administer more targeted interventions.


Asunto(s)
Depresión/diagnóstico , Encuestas y Cuestionarios , Adolescente , Adulto , Depresión/fisiopatología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Escalas de Valoración Psiquiátrica , Reproducibilidad de los Resultados , Adulto Joven
9.
Lancet Psychiatry ; 11(10): 853-862, 2024 10.
Artículo en Inglés | MEDLINE | ID: mdl-38795722

RESUMEN

In recent history, the world has witnessed a trend towards liberalization of abortion laws driven by an increasing understanding of the negative personal and public health consequences of criminalizing abortion. By contrast, several countries have recently implemented restrictive reproductive laws, joining the 112 countries where access to abortion care is banned completely or with narrow exceptions. On June 24, 2022, the US Supreme Court ruling in Dobbs v Jackson Women's Health Organization overturned its landmark decisions in Roe v Wade that established abortion until the point of viability of the fetus as a constitutional right. After Roe v Wade having been overturned, it is projected that many women in the USA will be prevented from accessing safe abortion care. Importantly, abortion bans not only impose constraints on patient autonomy, they also restrict physicians' ability to practice evidence-based medicine, which will negatively impact psychiatric care. It is therefore crucial for the practicing psychiatrist to be familiar with this new legal landscape. In this Personal View, we aim to provide a topical overview to help clinicians gain a clear understanding of legal, clinical, and ethical responsibilities, focusing on the USA. We also discuss the reality that psychiatrists might be called upon to determine medical necessity for an abortion on psychiatric grounds, which is new for most US psychiatrists. We predict that psychiatrists will be confronted with very difficult situations in which lawful and ethical conduct might be incongruent, and that abortion bans will result in greater numbers of patients needing psychiatric care from a system that is ill-prepared for additional demands.


Asunto(s)
Psiquiatría , Humanos , Femenino , Embarazo , Estados Unidos , Psiquiatría/ética , Psiquiatría/legislación & jurisprudencia , Aborto Legal/legislación & jurisprudencia , Aborto Legal/ética , Aborto Inducido/legislación & jurisprudencia , Aborto Inducido/ética , Accesibilidad a los Servicios de Salud/legislación & jurisprudencia , Accesibilidad a los Servicios de Salud/ética , Decisiones de la Corte Suprema
10.
J Affect Disord ; 321: 320-328, 2023 01 15.
Artículo en Inglés | MEDLINE | ID: mdl-36302491

RESUMEN

BACKGROUND: People engage in nonsuicidal self-injury (NSSI) to reduce negative affect, but it is not clear why they engage in this harmful type of behavior instead of using healthier strategies. The primary goal of this study was to evaluate whether people choose NSSI to reduce negative affect because they perceive it to be less cognitively costly than other available strategies. METHOD: In experiment one, 43 adults completed a novel, relief-based effort discounting task designed to index preferences about exerting cognitive effort to achieve relief. In experiment two, 149 adults, 52 % with a history of NSSI, completed our effort discounting task. RESULTS: Our main results suggest that people will accept less relief from an aversive experience if doing so requires expending less effort, i.e. they demonstrate effort discounting in the context of decisions about relief. We also found and that effort discounting is stronger among those with a history of NSSI, but this association became nonsignificant when simultaneously accounting for other conditions associated with aberrant effort tradeoffs. LIMITATIONS: The use of a control group without NSSI or other potentially harmful relief-seeking behaviors limits our ability to draw specific conclusions about NSSI. The ecological validity of our task was limited by a modestly effective affect manipulation, and because participants made hypothetical choices. CONCLUSIONS: This study demonstrates that preferences about exerting cognitive effort may be a barrier to using healthier affect regulation strategies. Further, the preference not to exert cognitive effort, though present in NSSI, is likely not unique to NSSI. Instead, effort discounting may be a transdiagnostic mechanism promoting an array of harmful relief-seeking behaviors.


Asunto(s)
Conducta Autodestructiva , Humanos , Adulto , Conducta Autodestructiva/psicología , Afecto , Estado de Salud , Cognición
11.
Am J Psychiatry ; 180(12): 896-905, 2023 12 01.
Artículo en Inglés | MEDLINE | ID: mdl-37941329

RESUMEN

OBJECTIVE: Racial and ethnic disparities in exposure to COVID-19-related stressors, pandemic-related distress, and adverse mental health outcomes were assessed among health care workers in the Bronx, New York, during the first wave of the pandemic. METHODS: The authors analyzed survey data from 992 health care workers using adjusted logistic regression models to assess differential prevalence of outcomes by race/ethnicity and their interactions. RESULTS: Compared with their White colleagues, Latinx, Black, Asian, and multiracial/other health care workers reported significantly higher exposure to multiple COVID-19-related stressors: redeployment, fear of being sick, lack of autonomy at work, and inadequate access to personal protective equipment. Endorsing a greater number of COVID-19-related stressors was associated with pandemic-related distress in all groups and with adverse mental health outcomes in some groups; it was not related to hazardous alcohol use in any of the groups. These associations were not significantly different between racial and ethnic groups. Latinx health care workers had significantly higher probabilities of pandemic-related distress and posttraumatic stress than White colleagues. Despite greater exposure to COVID-19-related stressors, Black, Asian, and multiracial/other health care workers had the same, if not lower, prevalence of adverse mental health outcomes. Conversely, White health care workers had a higher adjusted prevalence of moderate to severe anxiety compared with Asian colleagues and greater hazardous alcohol use compared with all other groups. CONCLUSIONS: Health care workers from racial and ethnic minority groups reported increased exposure to COVID-19-related stressors, suggestive of structural racism in the health care workforce. These results underscore the need for increased support for health care workers and interventions aimed at mitigating disparities in vocational exposure to risk and stress.


Asunto(s)
COVID-19 , Humanos , COVID-19/epidemiología , Etnicidad , Grupos Minoritarios , Personal de Salud , Evaluación de Resultado en la Atención de Salud
12.
Am J Psychiatry ; 180(9): 645-659, 2023 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-37073513

RESUMEN

Investigators from minoritized backgrounds are underrepresented in psychiatric research. That underrepresentation contributes to disparities in outcomes of access to mental health care. Drawing on lived experience, scholarly qualitative reports, and empirical data, the authors review how the underrepresentation of minoritized researchers arises from interlocking, self-reinforcing effects of structural biases in our research training and funding institutions. Minoritized researchers experience diminished early access to advanced training and opportunities, stereotype threats and microaggressions, isolation due to lack of peers and senior mentors, decreased access to early funding, and unique community and personal financial pressures. These represent structural racism-a system of institutional assumptions and practices that perpetuates race-based disparities, in spite of those institutions' efforts to increase diversity and in contradiction to the values that academic leaders outwardly espouse. The authors further review potential approaches to reversing these structural biases, including undergraduate-focused research experiences, financial support for faculty who lead training/mentoring programs, targeted mentoring through scholarly societies, better use of federal diversity supplement funding, support for scientific reentry, cohort building, diversity efforts targeting senior leadership, and rigorous examination of hiring, compensation, and promotion practices. Several of these approaches have empirically proven best practices and models for dissemination. If implemented alongside outcome measurement, they have the potential to reverse decades of structural bias in psychiatry and psychiatric research.


Asunto(s)
Investigación Biomédica , Tutoría , Humanos , Grupos Minoritarios , Racismo Sistemático , Recursos Humanos
13.
CNS Spectr ; 17(2): 76-86, 2012 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-22789065

RESUMEN

OBJECTIVE: To examine the prevalence of the C677T polymorphism of the methylene tetrahydrofolate reductase (MTHFR) gene and the A2756G polymorphism of methionine synthase (MS), and their impact on antidepressant response. METHODS: We screened 224 subjects (52% female, mean age 39 ± 11 years) with SCID-diagnosed major depressive disorder (MDD), and obtained 194 genetic samples. 49 subjects (49% female, mean age 36 ± 11 years) participated in a 12-week open clinical trial of fluoxetine 20-60 mg/day. Association between clinical response and C677T and A2756G polymorphisms, folate, B12, and homocysteine was examined. RESULTS: Prevalence of the C677T and A2756G polymorphisms was consistent with previous reports (C/C = 41%, C/T = 47%, T/T = 11%, A/A = 66%, A/G = 29%, G/G = 4%). In the fluoxetine-treated subsample (n = 49), intent-to-treat (ITT) response rates were 47% for C/C subjects and 46% for pooled C/T and T/T subjects (nonsignificant). ITT response rates were 38% for A/A subjects and 60% for A/G subjects (nonsignificant), with no subjects exhibiting the G/G homozygote. Mean baseline plasma B12 was significantly lower in A/G subjects compared to A/A, but folate and homocysteine levels were not affected by genetic status. Plasma folate was negatively associated with treatment response. CONCLUSION: The C677T and A2756G polymorphisms did not significantly affect antidepressant response. These preliminary findings require replication in larger samples.


Asunto(s)
Antidepresivos de Segunda Generación/uso terapéutico , Trastorno Depresivo Mayor , Fluoxetina/uso terapéutico , Metilenotetrahidrofolato Reductasa (NADPH2)/genética , Farmacogenética , Polimorfismo Genético/genética , Adolescente , Adulto , Anciano , Trastorno Depresivo Mayor/tratamiento farmacológico , Trastorno Depresivo Mayor/epidemiología , Trastorno Depresivo Mayor/genética , Femenino , Ácido Fólico/sangre , Homocisteína/sangre , Humanos , Masculino , Persona de Mediana Edad , Prevalencia , Escalas de Valoración Psiquiátrica , Estadísticas no Paramétricas , Vitamina B 12/sangre , Adulto Joven
14.
J Am Acad Psychiatry Law ; 50(2): 273-281, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-35459757

RESUMEN

The current pandemic raises substantive ethical and legal challenges for inpatient psychiatric units striving simultaneously to contain COVID-19 and provide safe, high-quality psychiatric care. Among these challenges, psychiatric units need to consider their role in isolating and quarantining COVID-19 positive patients who are psychiatrically cleared for discharge. We examine this complex dilemma by evaluating mental health law, quarantine law, public health ethics, a case from an urban academic medical center's inpatient unit, and literature focused on treatment and isolation protocols during HIV and tuberculosis epidemics. Although inpatient units are highly restrictive and intended for acute psychiatric treatment, at present there are no obvious isolation, quarantine, or housing options for many patients with mental illness infected with COVID-19.


Asunto(s)
COVID-19 , Humanos , Pandemias , Alta del Paciente , Cuarentena , SARS-CoV-2
15.
J Consult Clin Psychol ; 90(8): 626-637, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-36066864

RESUMEN

OBJECTIVE: Suicide is a major public health concern in the United States, but few effective and scalable interventions exist to help those with suicidal thoughts. We hypothesized that reading first-person narratives about working through suicidal thoughts would reduce the desire to die among adults and that this effect would be mediated by increased perceived shared experience and optimism. METHOD: Using a randomized waitlist-controlled trial, we tested the effect of digital narrative-based bibliotherapy among 528 adults visiting a social media platform dedicated to providing mental health support. Participants were randomized to either a treatment condition (n = 266), in which they read one suicide narrative per day for 14 days or to a waitlist control condition (n = 262). The primary outcome was a measure of desire to die assessed daily for the 14-day trial period and at 2-week follow-up. RESULTS: Participants in the treatment condition reported lower desire to die than participants in the control condition during the 14-day trial period (ß = -0.26, p = .001) and at 2-week follow-up (t = -2.82, p = .005). Increased perceived shared experience (indirect effect b = -0.55, p < .001) and optimism (indirect effect b = -0.85, p < .001) mediated the effect of treatment on desire to die. CONCLUSIONS: Digital narrative-based bibliotherapy may be an effective intervention for those at risk for suicide, and may work in part by increasing feelings of perceived shared experience and optimism. Future research is needed to test the generalizability of these results to other platforms, groups, and conditions. (PsycInfo Database Record (c) 2022 APA, all rights reserved).


Asunto(s)
Biblioterapia , Prevención del Suicidio , Suicidio , Adulto , Humanos , Ideación Suicida , Suicidio/psicología
17.
Jt Comm J Qual Patient Saf ; 47(3): 185-189, 2021 03.
Artículo en Inglés | MEDLINE | ID: mdl-33353851

RESUMEN

CONTEXT: During the COVID-19 pandemic, frontline workers have experienced high levels of stress and anxiety. Montefiore Medical Center recognized the urgent need for mental health support to mitigate and treat psychological distress among staff. Various mental health support services were implemented. This report provides an overview of the interventions implemented at Montefiore and provides preliminary insights on the utilization and value of these ongoing services. OUTCOMES: The interventions instituted at Montefiore included psychoeducational resources, a phone support line, Staff Support Centers (SSCs), a clinical treatment program, team support sessions, peer support outreach, mental health and wellness programs, and clergy support. The most heavily used service during the pandemic were the SSCs, and the least used service was the clergy support. INSIGHTS: With institutional encouragement and the collective efforts of more than 150 mental health professionals and other staff, it was possible to set up durable mental health supports with multiple points of access. Although many services were available to both clinical and nonclinical staff, outreach was primarily to clinical staff. Additional efforts in the future are needed to more fully reach nonclinical frontline workers. NEXT STEPS: The organization's next steps include evaluation of emotional health and distress among clinical and nonclinical staff using validated self-report measures administered over multiple time intervals. Lessons learned about staff support during COVID-19 will also be integrated into future efforts to support staff well-being more broadly.


Asunto(s)
COVID-19/psicología , Servicios de Salud Mental , Personal de Hospital/psicología , Consejo , Humanos , Ciudad de Nueva York , Estrés Psicológico
18.
Psychosomatics ; 51(2): 124-9, 2010.
Artículo en Inglés | MEDLINE | ID: mdl-20332287

RESUMEN

BACKGROUND: Depression has been recognized as a common feature of Parkinson's disease (PD), and is the most prevalent psychiatric disorder in PD patients. OBJECTIVE: The authors sought to determine whether cognitive-behavioral therapy (CBT) is effective in the treatment of depression within the context of PD (dPD). METHOD: The authors enrolled 8 depressed PD patients into an open treatment study of 12 weeks of individual CBT treatment. RESULTS: There was a significant linear decrease in mean Hamilton Rating Scale for Depression (17-item) scores over Weeks 0 to 12, and 57% of patients (4/7) met criteria for remission at endpoint. CONCLUSION: This uncontrolled study suggests that CBT may be effective in treating dPD and may be an alternative or adjunct to pharmacological treatment.


Asunto(s)
Terapia Cognitivo-Conductual/métodos , Trastorno Depresivo Mayor/epidemiología , Trastorno Depresivo Mayor/psicología , Enfermedad de Parkinson/epidemiología , Enfermedad de Parkinson/terapia , Comorbilidad , Trastorno Depresivo Mayor/diagnóstico , Manual Diagnóstico y Estadístico de los Trastornos Mentales , Humanos , Masculino , Persona de Mediana Edad , Índice de Severidad de la Enfermedad , Encuestas y Cuestionarios
19.
Acad Psychiatry ; 34(2): 141-4, 2010.
Artículo en Inglés | MEDLINE | ID: mdl-20224028

RESUMEN

OBJECTIVE: The OSCE has been demonstrated to be a reliable and valid method by which to assess students' clinical skills. An OSCE station was used to determine whether or not students who had completed a core psychiatry clerkship demonstrated skills that were superior to those who had not taken the clerkship and which areas discriminated between clerkship completers and noncompleters. METHODS: One hundred thirty-six students took a 48-item, fourth-year OSCE with one psychiatry station. Sixty-three (46%) had already completed psychiatry, and 70 (51%) had not, with three unknown. Students were to take histories, perform mental status examinations, assess dangerousness, and propose the differential diagnosis and treatment plans. RESULTS: Nine items differed significantly between completers and noncompleters, six concerning phenomenology and mental status and three concerning differential diagnosis. There were no differences regarding history, communication skills, or recommended interventions. CONCLUSION: Students may learn history taking, communication, and treatment planning in many settings. However, for the mental status examination, phenomenology, and differential diagnosis, completing a psychiatry clerkship was associated with better OSCE performance.


Asunto(s)
Prácticas Clínicas , Competencia Clínica/estadística & datos numéricos , Evaluación Educacional/métodos , Evaluación Educacional/estadística & datos numéricos , Psiquiatría/educación , Estudiantes de Medicina/estadística & datos numéricos , Escolaridad , Humanos
20.
J Clin Psychopharmacol ; 29(4): 372-7, 2009 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-19593178

RESUMEN

The placebo response shows pronounced interindividual variability. Placebos are postulated to act through central reward pathways that are modulated by monoamines. Because monoaminergic signaling is under strong genetic control, we hypothesized that common functional polymorphisms modulating monoaminergic tone would be related to degree of improvement during placebo treatment of subjects with major depressive disorder. We examined polymorphisms in genes encoding the catabolic enzymes catechol-O-methyltransferase and monoamine oxidase A. Subjects with monoamine oxidase A G/T polymorphisms (rs6323) coding for the highest activity form of the enzyme (G or G/G) had a significantly lower magnitude of placebo response than those with other genotypes. Subjects with ValMet catechol-O-methyltransferase polymorphisms coding for a lower-activity form of the enzyme (2 Met alleles) showed a statistical trend toward a lower magnitude of placebo response. These findings support the hypothesis that genetic polymorphisms modulating monoaminergic tone are related to degree of placebo responsiveness in major depressive disorder.


Asunto(s)
Antidepresivos/uso terapéutico , Catecol O-Metiltransferasa/genética , Trastorno Depresivo Mayor/tratamiento farmacológico , Trastorno Depresivo Mayor/genética , Monoaminooxidasa/genética , Polimorfismo de Nucleótido Simple , Adulto , Catecol O-Metiltransferasa/metabolismo , Trastorno Depresivo Mayor/enzimología , Método Doble Ciego , Femenino , Genotipo , Humanos , Masculino , Persona de Mediana Edad , Monoaminooxidasa/metabolismo , Fenotipo , Efecto Placebo , Ensayos Clínicos Controlados Aleatorios como Asunto , Índice de Severidad de la Enfermedad , Resultado del Tratamiento
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA