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1.
J Affect Disord ; 342: 127-138, 2023 12 01.
Artículo en Inglés | MEDLINE | ID: mdl-37661057

RESUMEN

BACKGROUND: Studies have shown that depression and interpersonal relationships are interdependently connected and that including the intimate partner in treatment for depression has beneficial effects. Given evidence that compassion is both an interpersonal quality and a promising treatment target, the goal of this study was to examine the effects of a compassion-based, contemplative treatment for couples employing a multi-method approach for evaluation. METHODS: In a pre-post-follow-up design, n = 53 different-sex couples including women with current depression were randomly assigned to a 10-week-long CBCT®-fC (Cognitively-Based Compassion Training/intervention for couples) or treatment-as-usual (TAU) condition. Multi-level linear regression models and post-hoc contrasts were calculated to determine changes in depressive symptoms, mindfulness and self-compassion, interpersonal functioning and neuroendocrine markers collected during a partnership appreciation task (PAT) in the laboratory before and after CBCT-fC treatment. RESULTS: While CBCT-fC led to a comparable decrease of depressive symptoms as TAU, the training specifically increased self-compassion and mindfulness versus TAU. Interestingly, interpersonal functioning did not improve, which was also reflected in participants' preferred self-focus in-between-session practices, instead of practices with interpersonal focus. There were no group-specific changes in psychobiological stress-marker reactivity. CONCLUSIONS: CBCT-fC was effective in decreasing current depressive symptomatology and increasing mindfulness, and self-compassion. Especially the motivation to participate, such as improving interpersonal functioning, should be addressed and intrinsic motives of the partners to be involved. In highly burdened individuals, self-regulation may need to be improved before co-regulation can be addressed, which would requiring longer treatments. Facilitating factors for engaging in the practice between-sessions seem meaningful.


Asunto(s)
Trastorno Depresivo , Atención Plena , Humanos , Femenino , Empatía , Atención Plena/métodos , Ansiedad , Proyectos de Investigación , Trastorno Depresivo/terapia
2.
Mindfulness (N Y) ; 11(1): 63-74, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32435316

RESUMEN

Compassion meditation (CM) is a contemplative practice that is intended to cultivate the ability to extend and sustain compassion toward self and others. Although research documents the benefits of CM in healthy populations, its use in the context of psychopathology is largely unexamined. The purpose of this study was to refine and initially evaluate a CM protocol, Cognitively Based Compassion Training (CBCT®), for use with Veterans with PTSD. To this end, our research team developed and refined a manualized protocol, CBCT-Vet, over 4 sets of groups involving 36 Veterans. This protocol was delivered in 8-10 sessions, each lasting 90-120 min and led by a CBCT®-trained clinical psychologist. Quantitative and qualitative data were used to identify areas to be improved and to assess change that occurred during the treatment period. Based on pooled data from this series of groups, CM appears to be acceptable to Veterans with PTSD. Group participation was associated with reduced symptoms of PTSD (partial eta squared = .27) and depression (partial eta squared = .19), but causality should not be inferred given the nonrandomized design. No change was observed in additional outcomes, including positive emotion and social connectedness. The results of this open trial support additional exploration of CM as part of the recovery process for Veterans with PTSD.

3.
Trials ; 20(1): 247, 2019 Apr 29.
Artículo en Inglés | MEDLINE | ID: mdl-31036091

RESUMEN

BACKGROUND: Cancer survivors and their informal caregivers (family members, close friends) often experience significant impairments in health-related quality of life (HRQOL), including disruptions in psychological, physical, social, and spiritual well-being both during and after primary cancer treatment. The purpose of this in-progress pilot trial is to determine acceptability and preliminary efficacy (as reflected by effect sizes) of CBCT® (Cognitively-Based Compassion Training) compared with a cancer health education (CHE) attention control to improve the primary outcome of depressive symptoms and secondary outcomes of other HRQOL domains (e.g., anxiety, fatigue), biomarkers of inflammation and diurnal cortisol rhythm, and healthcare utilization-related outcomes in both cancer survivors and informal caregivers. METHODS: Forty dyads consisting of solid tumor survivors who have completed primary treatments (chemotherapy, radiation, surgery) and their informal caregivers, with at least one dyad member with ≥ mild depressive symptoms or anxiety, will be recruited from Tucson, Arizona, USA. Survivor-caregiver dyads will be randomized together to complete either CBCT or CHE. CBCT is a manualized, 8-week, group meditation-based intervention that starts with attention and mindfulness and builds to contemplative practices aimed at cultivating compassion to the self and others. The goal of CBCT is to challenge unexamined assumptions about feelings and behaviors, with a focus on generating spontaneous self-compassion and increased empathic responsiveness and compassion for others. CHE is an 8-week, manualized group intervention that provides cancer-specific education on various topics (e.g., cancer advocacy, survivorship wellness). Patient-reported HRQOL outcomes will be assessed before, immediately after (week 9), and 1 month after CBCT or CHE (week 13). At the same time points, stress-related biomarkers of inflammation (e.g., plasma interleukin-6) and saliva cortisol relevant for survivor and informal caregiver wellness and healthcare utilization will be measured. DISCUSSION: If CBCT shows acceptability, a larger trial will be warranted and appropriately powered to formally test the efficacy of this dyadic intervention. Interventions such as CBCT directed toward both survivors and caregivers may eventually fill a gap in supportive oncology care programs to improve HRQOL and healthcare utilization in both dyad members. TRIAL REGISTRATION: Clinicaltrials.gov, NCT03459781 . Prospectively registered on 9 March 2018.


Asunto(s)
Supervivientes de Cáncer/psicología , Cuidadores/psicología , Cognición , Terapia Cognitivo-Conductual/métodos , Empatía , Neoplasias/terapia , Educación del Paciente como Asunto/métodos , Calidad de Vida , Adaptación Psicológica , Arizona , Conocimientos, Actitudes y Práctica en Salud , Humanos , Meditación , Salud Mental , Neoplasias/patología , Neoplasias/psicología , Proyectos Piloto , Ensayos Clínicos Controlados Aleatorios como Asunto , Factores de Tiempo , Resultado del Tratamiento
4.
J Trauma Stress ; 32(2): 299-309, 2019 04.
Artículo en Inglés | MEDLINE | ID: mdl-30929283

RESUMEN

There is considerable interest in developing complementary and integrative approaches for ameliorating posttraumatic stress disorder (PTSD). Compassion meditation (CM) and loving-kindness meditation appear to offer benefits to individuals with PTSD, including symptom reduction. The present study was a pilot randomized controlled trial of CM for PTSD in veterans. The CM condition, an adaptation of Cognitively-Based Compassion Training (CBCT®), consists of exercises to stabilize attention, develop present-moment awareness, and foster compassion. We compared CM to Veteran.calm (VC), which consists of psychoeducation about PTSD, rationale for relaxation, relaxation training, and sleep hygiene. Both conditions consist of 10 weekly 90-min group sessions with between-session practice assignments. A total of 28 veterans attended at least one session of the group intervention and completed pre- and posttreatment measures of PTSD severity and secondary outcomes as well as weekly measures of PTSD, depressive symptoms, and positive and negative emotions. Measures of treatment credibility, attendance, practice compliance, and satisfaction were administered to assess feasibility. A repeated measures analysis of variance revealed a more substantive reduction in PTSD symptoms in the CM condition than in the VC condition, between-group d = -0.85. Credibility, attendance, and satisfaction were similar across CM and VC conditions thus demonstrating the feasibility of CM and the appropriateness of VC as a comparison condition. The findings of this initial randomized pilot study provide rationale for future studies examining the efficacy and effectiveness of CM for veterans with PTSD.


Spanish Abstracts by Asociación Chilena de Estrés Traumático (ACET) Meditación de compasión para el trastorno de estrés postraumático en veteranos: un estudio aleatorio de prueba de concepto MEDITACIÓN DE COMPASIÓN PARA EL TEPT Existe un interés considerable en desarrollar enfoques complementarios e integrativos para mejorar el trastorno de estrés postraumático (TEPT). La meditación de compasión (CM en su sigla en inglés) y la meditación de bondad amorosa (LKM, en su sigla en inglés) parecen ofrecer beneficios a las personas con trastorno de estrés postraumático, incluida la reducción de síntomas. El presente estudio fue un ensayo piloto controlado aleatorizado de CM para el TEPT en veteranos. La condición de CM, una adaptación del entrenamiento de compasión de base cognitiva (CBCT® en sus siglas en inglés), consiste en ejercicios para estabilizar la atención, desarrollar la conciencia del momento presente y fomentar la compasión. Comparamos CM con Veteran.calm (VC en sus siglas en inglés), que consiste en psicoeducación sobre el TEPT y las razones para la relajación, entrenamiento de relajación e higiene del sueño. Ambas condiciones consisten en 10 sesiones de grupo semanales de 90 minutos con tareas de práctica entre sesiones. Un total de 28 veteranos asistieron al menos a una sesión de la intervención grupal y completaron las medidas previas y posteriores al tratamiento de la gravedad del TEPT y resultados secundarios, así como las medidas semanales de TEPT, síntomas depresivos y emociones positivas y negativas. Las medidas de credibilidad del tratamiento, asistencia, cumplimiento de la práctica y satisfacción se administraron para evaluar la viabilidad. Un análisis de la varianza de medidas repetidas reveló una reducción más sustancial en síntomas de TEPT en la condición de CM que en la condición de VC, d de Cohen = -0.85 entre grupos. La credibilidad, la asistencia y la satisfacción fueron similares en todas las condiciones de CM y VC y demostraron la viabilidad de CM y la idoneidad de VC como condición de comparación. Los hallazgos de este estudio piloto aleatorizado inicial proporcionan una base para futuros estudios que examinan la eficacia y la efectividad de CM para los veteranos con TEPT.


Asunto(s)
Meditación , Atención Plena/métodos , Trastornos por Estrés Postraumático/terapia , Empatía , Proyectos Piloto , Prueba de Estudio Conceptual , Escalas de Valoración Psiquiátrica , Índice de Severidad de la Enfermedad , Trastornos por Estrés Postraumático/psicología , Veteranos
6.
J Biol Chem ; 281(42): 31279-89, 2006 Oct 20.
Artículo en Inglés | MEDLINE | ID: mdl-16899457

RESUMEN

Gamma-secretase is one of the critical enzymes required for the generation of amyloid-beta peptides from the beta-amyloid precursor protein. Because amyloid-beta peptides are generally accepted to play a key role in Alzheimer disease, gamma-secretase inhibition holds the promise for a disease-modifying therapy for this neurodegenerative condition. Although recent progress has enhanced the understanding of the biology and composition of the gamma-secretase enzyme complex, less information is available on the actual interaction of various inhibitor classes with the enzyme. Here we show that the two principal classes of inhibitor described in the scientific and patent literature, aspartyl protease transition state analogue and small molecule non-transition state inhibitors, display fundamental differences in the way they interact with the enzyme. Taking advantage of a gamma-secretase enzyme overexpressing cellular system and different radiolabeled gamma-secretase inhibitors, we observed that the maximal binding of non-transition state gamma-secretase inhibitors accounts only for half the number of catalytic sites of the recombinant enzyme complex. This characteristic stoichiometry can be best accommodated with a model whereby the non-transition state inhibitors bind to a unique site at the interface of a dimeric enzyme. Subsequent competition studies confirm that this site appears to be targeted by the main classes of small molecule gamma-secretase inhibitor. In contrast, the non-steroidal anti-inflammatory drug gamma-secretase modulator sulindac sulfide displayed noncompetitive antagonism for all types of inhibitor. This finding suggests that non-steroidal anti-inflammatory drug-type gamma-secretase modulators target an alternative site on the enzyme, thereby changing the conformation of the binding sites for gamma-secretase inhibitors.


Asunto(s)
Secretasas de la Proteína Precursora del Amiloide/química , Secretasas de la Proteína Precursora del Amiloide/metabolismo , Antiinflamatorios no Esteroideos/farmacología , Unión Competitiva , Bioquímica/métodos , Dominio Catalítico , Línea Celular , Relación Dosis-Respuesta a Droga , Evaluación Preclínica de Medicamentos/métodos , Inhibidores Enzimáticos/farmacología , Humanos , Cinética , Ligandos , Modelos Químicos , Unión Proteica , Sulindac/análogos & derivados , Sulindac/farmacología
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