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1.
Community Ment Health J ; 59(7): 1388-1400, 2023 10.
Artículo en Inglés | MEDLINE | ID: mdl-37084106

RESUMEN

The extent to which mental health services for youths embody system-of-care (SOC) principles is an important quality indicator. This study tested whether youth and family experiences of SOC principles varied depending on youths' level of need after adjusting for sociodemographic and treatment factors. The relationship to caregiver-reported clinical outcomes was also examined. Using administrative data and cross-sectional surveys from a stratified random sample of 1124 caregivers of youths ages 5-20 within a statewide system, adjusted analyses indicated caregivers of youths with the most intensive needs were significantly less likely to report receiving care that embodied SOC principles, with deficits on six of nine items. Youths whose services embodied SOC principles experienced significantly greater improvement in caregiver-reported functioning even after adjusting for level of need. Results highlight disparities in SOC principles for youths with intensive needs and the need for policy and intervention development to improve care for this population.


Asunto(s)
Servicios de Salud Mental , Humanos , Adolescente , Estudios Transversales
2.
J Neurophysiol ; 128(6): 1421-1434, 2022 12 01.
Artículo en Inglés | MEDLINE | ID: mdl-36350050

RESUMEN

When a complexly structured natural image is presented twice in succession, first as adapter and then as test, neurons in area TE of macaque inferotemporal cortex exhibit repetition suppression, responding less strongly to the second presentation than to the first. This phenomenon, which has been studied primarily in TE, might plausibly be argued to arise in TE because TE neurons respond selectively to complex images and thus carry information adequate for determining whether an image is or is not a repeat. However, the idea has never been put to a direct test. To resolve this issue, we monitored neuronal responses to sequences of complex natural images under identical conditions in areas V2 and TE. We found that repetition suppression occurs in both areas. Moreover, in each area, suppression takes the form of a dynamic alteration whereby the initial peak of excitation is followed by a trough and then a rebound of firing rate. To assess whether repetition suppression in either area is transmitted from the other area, we analyzed the timing of the phenomenon and its degree of spatial generalization. Suppression occurs at shorter latency in V2 than in TE. Therefore it is not simply fed back from TE. Suppression occurs in TE but not in V2 under conditions in which the test and adapter are presented in different visual field quadrants. Therefore it is not simply fed forward from V2. We conclude that repetition suppression occurs independently in V2 and TE.NEW & NOTEWORTHY When a complexly structured natural image is presented twice in rapid succession, neurons in inferotemporal area TE exhibit repetition suppression, responding less strongly to the second than to the first presentation. We have explored whether this phenomenon is confined to high-order areas where neurons respond selectively to such images and thus carry information relevant to recognizing a repeat. We have found surprisingly that repetition suppression occurs even in low-order visual area V2.


Asunto(s)
Macaca , Corteza Visual , Animales , Corteza Visual/fisiología , Corteza Cerebral , Campos Visuales , Neuronas/fisiología , Estimulación Luminosa/métodos
3.
J Neurophysiol ; 128(2): 378-394, 2022 08 01.
Artículo en Inglés | MEDLINE | ID: mdl-35830503

RESUMEN

When an image is presented twice in succession, neurons in area TE of macaque inferotemporal cortex exhibit repetition suppression, responding less strongly to the second presentation than to the first. Suppression is known to occur if the adapter and the test image are subtly different from each other. However, it is not known whether cross suppression occurs between images that are radically different from each other but that share a subset of features. To explore this issue, we measured repetition suppression using colored shapes. On interleaved trials, the test image might be identical to the adapter, might share its shape or color alone, or might differ from it totally. At the level of the neuronal population as a whole, suppression was especially deep when adapter and test were identical, intermediate when they shared only one attribute, and minimal when they shared neither attribute. At the level of the individual neuron, the degree of suppression depended not only on the properties of the two images but also on the preferences of the neuron. Suppression was deeper when the repeated color or shape was preferred by the neuron than when it was not. This effect might arise from feature-specific adaptation or alternatively from adapter-induced fatigue. Both mechanisms conform to the principle that the degree of suppression is determined by the preferences of the neuron.NEW & NOTEWORTHY When an image is presented twice in rapid succession, neurons of inferotemporal cortex exhibit repetition suppression, responding less strongly to the second than to the first presentation. It has been unclear whether this phenomenon depends on the selectivity of the neuron under study. Here, we show that, for a given neuron, suppression is deepest when features preferred by that neuron are repeated. The results argue for a mechanism based either on feature-specific suppression or fatigue.


Asunto(s)
Corteza Cerebral , Lóbulo Temporal , Animales , Corteza Cerebral/fisiología , Fatiga , Macaca mulatta , Estimulación Luminosa/métodos , Lóbulo Temporal/fisiología
4.
Adm Policy Ment Health ; 49(4): 623-643, 2022 07.
Artículo en Inglés | MEDLINE | ID: mdl-35129739

RESUMEN

The importance of clinical supervision for supporting effective implementation of evidence-based treatments (EBTs) is widely accepted; however, very little is known about which supervision practice elements contribute to implementation effectiveness. This systematic review aimed to generate a taxonomy of empirically-supported supervision practice elements that have been used in treatment trials and shown to independently predict improved EBT implementation. Supervision practice elements were identified using a two-phase, empirically-validated distillation process. In Phase I, a systematic review identified supervision protocols that had evidence of effectiveness based on (a) inclusion in one or more EBT trials, and (b) independent association with improved EBT implementation in one or more secondary studies. In Phase II, a hybrid deductive-inductive coding process was applied to the supervision protocols to characterize the nature and frequency of supervision practice elements across EBTs. Twenty-one of the 876 identified articles assessed the associations of supervision protocols with implementation or clinical outcomes, representing 13 separate studies. Coding and distillation of the supervision protocols resulted in a taxonomy of 21 supervision practice elements. The most frequently used elements were: reviewing supervisees' practice (92%; n = 12), clinical suggestions (85%; n = 11), behavioral rehearsal (77%; n = 10), elicitation (77%; n = 10), and fidelity assessment (77%; n = 10). This review identified supervision practice elements that could be targets for future research testing which elements are necessary and sufficient to support effective EBT implementation. Discrepancies between supervision practice elements observed in trials as compared to routine practice highlights the importance of research addressing supervision-focused implementation strategies.


Asunto(s)
Preceptoría , Proyectos de Investigación , Humanos
5.
Adm Policy Ment Health ; 49(6): 927-942, 2022 11.
Artículo en Inglés | MEDLINE | ID: mdl-35851928

RESUMEN

PURPOSE: Despite significant interest in improving behavioral health therapists' implementation of measurement-based care (MBC)-and widespread acknowledgment of the potential importance of organization-level determinants-little is known about the extent to which therapists' use of, and attitudes toward, MBC vary across and within provider organizations or the multilevel factors that predict this variation. METHODS: Data were collected from 177 therapists delivering psychotherapy to youth in 21 specialty outpatient clinics in the USA. Primary outcomes were use of MBC for progress monitoring and treatment modification, measured by the nationally-normed Current Assessment of Practice Evaluation-Revised. Secondary outcomes were therapist attitudes towards MBC. Linear multilevel regression models tested the association of theory-informed clinic and therapist characteristics with these outcomes. RESULTS: Use of MBC varied significantly across clinics, with means on progress monitoring ranging from values at the 25th to 93rd percentiles and means on treatment modification ranging from the 18th to 71st percentiles. At the clinic level, the most robust predictor of both outcomes was clinic climate for evidence-based practice implementation; at the therapist level, the most robust predictors were: attitudes regarding practicality, exposure to MBC in graduate training, and prior experience with MBC. Attitudes were most consistently related to clinic climate for evidence-based practice implementation, exposure to MBC in graduate training, and prior experience with MBC. CONCLUSIONS: There is important variation in therapists' attitudes toward and use of MBC across clinics. Implementation strategies that target clinic climate for evidence-based practice implementation, graduate training, and practicality may enhance MBC implementation in behavioral health.


Asunto(s)
Actitud del Personal de Salud , Práctica Clínica Basada en la Evidencia , Adolescente , Humanos , Psicoterapia , Organizaciones
6.
BMC Psychiatry ; 21(1): 74, 2021 02 04.
Artículo en Inglés | MEDLINE | ID: mdl-33541301

RESUMEN

BACKGROUND: Community behavioral health clinicians, supervisors, and administrators play an essential role in implementing new psychosocial evidence-based practices (EBP) for patients receiving psychiatric care; however, little is known about these stakeholders' values and preferences for implementation strategies that support EBP use, nor how best to elicit, quantify, or segment their preferences. This study sought to quantify these stakeholders' preferences for implementation strategies and to identify segments of stakeholders with distinct preferences using a rigorous choice experiment method called best-worst scaling. METHODS: A total of 240 clinicians, 74 clinical supervisors, and 29 administrators employed within clinics delivering publicly-funded behavioral health services in a large metropolitan behavioral health system participated in a best-worst scaling choice experiment. Participants evaluated 14 implementation strategies developed through extensive elicitation and pilot work within the target system. Preference weights were generated for each strategy using hierarchical Bayesian estimation. Latent class analysis identified segments of stakeholders with unique preference profiles. RESULTS: On average, stakeholders preferred two strategies significantly more than all others-compensation for use of EBP per session and compensation for preparation time to use the EBP (P < .05); two strategies were preferred significantly less than all others-performance feedback via email and performance feedback via leaderboard (P < .05). However, latent class analysis identified four distinct segments of stakeholders with unique preferences: Segment 1 (n = 121, 35%) strongly preferred financial incentives over all other approaches and included more administrators; Segment 2 (n = 80, 23%) preferred technology-based strategies and was younger, on average; Segment 3 (n = 52, 15%) preferred an improved waiting room to enhance client readiness, strongly disliked any type of clinical consultation, and had the lowest participation in local EBP training initiatives; Segment 4 (n = 90, 26%) strongly preferred clinical consultation strategies and included more clinicians in substance use clinics. CONCLUSIONS: The presence of four heterogeneous subpopulations within this large group of clinicians, supervisors, and administrators suggests optimal implementation may be achieved through targeted strategies derived via elicitation of stakeholder preferences. Best-worst scaling is a feasible and rigorous method for eliciting stakeholders' implementation preferences and identifying subpopulations with unique preferences in behavioral health settings.


Asunto(s)
Práctica Clínica Basada en la Evidencia , Servicios de Salud , Personal Administrativo , Teorema de Bayes , Humanos , Proyectos de Investigación
7.
Adm Policy Ment Health ; 48(5): 780-792, 2021 09.
Artículo en Inglés | MEDLINE | ID: mdl-33740163

RESUMEN

Funding is a major barrier to implementation of evidence-based practices (EBPs) in publicly-funded community mental health clinics (CMHCs). Understanding how best to deploy implementation strategies that address this barrier requires greater clarity on the financial context within agencies. We developed the Agency Financial Status Scales (AFSS) to assess employee perceptions of the level of three hypothesized and theoretical funding related constructs in organizations: (a) perceptions of financial health, (b) financial attitudes toward EBPs, and (c) strategic financial climate. This investigation serves as a preliminary evaluation of this measure. Participants were 239 therapists and 40 supervisors from 25 publicly-funded CMHCs providing outpatient mental health services for young people. Confirmatory factor analysis was used to investigate the latent trait structure of the items. Internal consistency, interrater agreement, concordance between therapists and supervisors, and convergent validity were also examined. A two-factor model measuring perceptions of financial health and strategic financial climate best fit the data. For both of these scales, alpha reliability was acceptable and agreement statistics provided moderate support for aggregation at the organizational level. Analyses supported the convergent validity of the scales. The development and preliminary evaluation of the AFSS is an important first step in understanding the financial context of publicly-funded CMHCs. Though findings from this investigation are promising, additional development and testing are needed to develop a more thorough understanding of the constructs and to improve the validity and reliability of this measure.


Asunto(s)
Servicios de Salud Mental , Salud Mental , Adolescente , Práctica Clínica Basada en la Evidencia , Humanos , Psicometría , Reproducibilidad de los Resultados
8.
Adm Policy Ment Health ; 48(1): 131-142, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-32430590

RESUMEN

We demonstrate the application of NUDGE (Narrow, Understand, Discover, Generate, Evaluate), a behavioral economics approach to systematically identifying behavioral barriers that impede behavior enactment, to the challenge of evidence-based practice (EBP) use in community behavioral health. Drawing on 65 clinician responses to a system-wide crowdsourcing challenge about EBP underutilization, we applied NUDGE to discover, synthesize and validate specific behavioral barriers to EBP utilization that directly inform the design of tailored implementation strategies. To our knowledge, this is the first study to apply behavioral economic insights to clinician-proposed solutions to implementation challenges in order to design implementation strategies. The study demonstrates the successful application of NUDGE to implementation strategy design and provides novel targets for intervention.


Asunto(s)
Servicios Comunitarios de Salud Mental , Salud Mental , Práctica Clínica Basada en la Evidencia , Humanos
9.
Depress Anxiety ; 37(10): 1007-1016, 2020 10.
Artículo en Inglés | MEDLINE | ID: mdl-32390315

RESUMEN

BACKGROUND: Current approaches to increasing the rates of clinician use of exposure therapy for anxiety disorders in community settings are limited. Research underscores the importance of addressing contextual variables to facilitate clinician use of evidence-based practices; however, no studies have identified the innovation-specific organizational capacity necessary to implement exposure therapy. Such work is critical to ensure that treatment-seeking individuals with anxiety receive effective care. METHODS: We used a two-step process to identify the innovation-specific organizational capacity necessary to deliver exposure. First, 24 leaders of specialty anxiety clinics in the United States (50% female, mean [M]age = 47.7 years) completed a survey about the organizational innovation-specific capacity (e.g., policies and procedures) they employ to support their providers in delivering exposure therapy. Second, 19 community clinicians (79% female, M age = 42.9 years) reported on the extent to which these characteristics were present in their settings. RESULTS: In Step 1, specialty clinic leaders unanimously endorsed six organizational characteristics as essential and five as important within the areas of organizational policies, supervisory support, and peer clinician support. These characteristics were present in more than 90% of specialty clinics. In Step 2, therapists in community clinics reported these characteristics were minimally present in their organizations. CONCLUSIONS: Specialty clinic leaders exhibited consensus on the innovation-specific organizational capacity necessary to implement exposure therapy. Identified characteristics were largely absent from community clinics. Developing fiscal, policy, or organizational strategies that enhance the organizational capacity within community settings may improve the patients' access to effective treatment for anxiety disorders.


Asunto(s)
Terapia Implosiva , Trastornos de Ansiedad/terapia , Femenino , Humanos , Masculino , Innovación Organizacional , Estados Unidos
10.
J Child Psychol Psychiatry ; 60(4): 430-450, 2019 04.
Artículo en Inglés | MEDLINE | ID: mdl-30144077

RESUMEN

BACKGROUND: Scientists have developed evidence-based interventions that improve the symptoms and functioning of youth with psychiatric disorders; however, these interventions are rarely used in community settings. Eliminating this research-to-practice gap is the purview of implementation science, the discipline devoted to the study of methods to promote the use of evidence-based practices in routine care. METHODS: We review studies that have tested factors associated with implementation in child psychology and psychiatry, explore applications of social science theories to implementation, and conclude with recommendations to advance implementation science through the development and testing of novel, multilevel, causal theories. RESULTS: During its brief history, implementation science in child psychology and psychiatry has documented the implementation gap in routine care, tested training approaches and found them to be insufficient for behavior change, explored the relationships between variables and implementation outcomes, and initiated randomized controlled trials to test implementation strategies. This research has identified targets related to implementation (e.g., clinician motivation, organizational culture) and demonstrated the feasibility of activating these targets through implementation strategies. However, the dominant methodological approach has been atheoretical and predictive, relying heavily on a set of variables from heuristic frameworks. CONCLUSIONS: Optimizing the implementation of effective treatments in community care for youth with psychiatric disorders is a defining challenge of our time. This review proposes a new direction focused on developing and testing integrated causal theories. We recommend implementation scientists: (a) move from observational studies of implementation barriers and facilitators to trials that include causal theory; (b) identify a core set of implementation determinants; (c) conduct trials of implementation strategies with clear targets, mechanisms, and outcomes; (d) ensure that behaviors that are core to EBPs are clearly defined; and (e) agree upon standard measures. This agenda will help fulfill the promise of evidence-based practice for improving youth behavioral health.


Asunto(s)
Psiquiatría del Adolescente , Psiquiatría Infantil , Ciencia de la Implementación , Trastornos Mentales/terapia , Psicología Infantil , Adolescente , Psiquiatría del Adolescente/normas , Niño , Psiquiatría Infantil/normas , Humanos , Psicología Infantil/normas
11.
Adm Policy Ment Health ; 46(6): 701-712, 2019 11.
Artículo en Inglés | MEDLINE | ID: mdl-31346845

RESUMEN

Conceptual models of implementation posit contextual factors and their associations with evidence-based practice (EBP) use at multiple levels and suggest these factors exhibit complex cross-level interactions. Little empirical work has examined these interactions, which is critical to advancing causal implementation theory and optimizing implementation strategy design. Mixed effects regression examined cross-level interactions between clinician (knowledge, attitudes) and organizational characteristics (culture, climate) to predict cognitive-behavioral and psychodynamic therapy use with youth (N = 247 clinicians across 28 agencies). Results indicated several interactions, highlighting the importance of attending to interactions between variables at multiple levels to advance multilevel implementation theory and strategies.


Asunto(s)
Terapia Cognitivo-Conductual , Servicios Comunitarios de Salud Mental/organización & administración , Cultura Organizacional , Psicoterapia Psicodinámica , Lista de Verificación , Estudios Transversales , Práctica Clínica Basada en la Evidencia , Humanos , Philadelphia , Encuestas y Cuestionarios
12.
Adm Policy Ment Health ; 46(6): 713-723, 2019 11.
Artículo en Inglés | MEDLINE | ID: mdl-31203492

RESUMEN

Therapist turnover is a major problem in community mental health. Financial strain, which is composed of cognitive, emotional, and behavioral responses to the experience of economic hardship, is an understudied antecedent of therapist turnover given the tumultuous financial environment in community mental health. We prospectively examined the relationship between therapist financial strain and turnover in 247 therapists in 28 community mental health agencies. We expected greater therapist financial strain to predict higher turnover and participation in a system-funded evidence-based practice (EBP) training initiative to alleviate this effect. Controlling for covariates, financial strain predicted therapist turnover (OR 1.12, p = .045), but not for therapists who participated in an EBP training initiative. Reducing financial strain and/or promoting EBP implementation may be levers to reduce turnover.


Asunto(s)
Difusión de Innovaciones , Práctica Clínica Basada en la Evidencia , Reorganización del Personal/economía , Medicina de la Conducta , Servicios Comunitarios de Salud Mental , Femenino , Humanos , Masculino , Innovación Organizacional
13.
Adm Policy Ment Health ; 45(1): 142-151, 2018 01.
Artículo en Inglés | MEDLINE | ID: mdl-27817044

RESUMEN

Organizational culture and climate are important determinants of behavioral health service delivery for youth. The Organizational Social Context measure is a well validated assessment of organizational culture and climate that has been developed and extensively used in public sector behavioral health service settings. The degree of concordance between administrators and clinicians in their reports of organizational culture and climate may have implications for research design, inferences, and organizational intervention. However, the extent to which administrators' and clinicians' reports demonstrate concordance is just beginning to garner attention in public behavioral health settings in the United States. We investigated the concordance between 73 administrators (i.e., supervisors, clinical directors, and executive directors) and 247 clinicians in 28 child-serving programs in a public behavioral health system. Findings suggest that administrators, compared to clinicians, reported more positive cultures and climates. Organizational size moderated this relationship such that administrators in small programs (<466 youth clients served annually) provided more congruent reports of culture and climate in contrast to administrators in large programs (≥466 youth clients served annually) who reported more positive cultures and climates than clinicians. We propose a research agenda that examines the effect of concordance between administrators and clinicians on organizational outcomes in public behavioral health service settings.


Asunto(s)
Personal Administrativo , Actitud del Personal de Salud , Servicios Comunitarios de Salud Mental/organización & administración , Personal de Salud , Cultura Organizacional , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Philadelphia
14.
Adm Policy Ment Health ; 44(2): 269-283, 2017 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-27236457

RESUMEN

The development of efficient and scalable implementation strategies in mental health is restricted by poor understanding of the change mechanisms that increase clinicians' evidence-based practice (EBP) adoption. This study tests the cross-level change mechanisms that link an empirically-supported organizational strategy for supporting implementation (labeled ARC for Availability, Responsiveness, and Continuity) to mental health clinicians' EBP adoption and use. Four hundred seventy-five mental health clinicians in 14 children's mental health agencies were randomly assigned to the ARC intervention or a control condition. Measures of organizational culture, clinicians' intentions to adopt EBPs, and job-related EBP barriers were collected before, during, and upon completion of the three-year ARC intervention. EBP adoption and use were assessed at 12-month follow-up. Multilevel mediation analyses tested changes in organizational culture, clinicians' intentions to adopt EBPs, and job-related EBP barriers as linking mechanisms explaining the effects of ARC on clinicians' EBP adoption and use. ARC increased clinicians' EBP adoption (OR = 3.19, p = .003) and use (81 vs. 56 %, d = .79, p = .003) at 12-month follow-up. These effects were mediated by improvement in organizational proficiency culture leading to increased clinician intentions to adopt EBPs and by reduced job-related EBP barriers. A combined mediation analysis indicated the organizational culture-EBP intentions mechanism was the primary carrier of ARC's effects on clinicians' EBP adoption and use. ARC increases clinicians' EBP adoption and use by creating proficient organizational cultures that increase clinicians' intentions to adopt EBPs.


Asunto(s)
Actitud del Personal de Salud , Servicios Comunitarios de Salud Mental/organización & administración , Práctica Clínica Basada en la Evidencia/organización & administración , Personal de Salud/psicología , Trastornos del Neurodesarrollo/terapia , Cultura Organizacional , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Innovación Organizacional
16.
Adm Policy Ment Health ; 43(5): 783-798, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-26474761

RESUMEN

A step toward the development of optimally effective, efficient, and feasible implementation strategies that increase evidence-based treatment integration in mental health services involves identification of the multilevel mechanisms through which these strategies influence implementation outcomes. This article (a) provides an orientation to, and rationale for, consideration of multilevel mediating mechanisms in implementation trials, and (b) systematically reviews randomized controlled trials that examined mediators of implementation strategies in mental health. Nine trials were located. Mediation-related methodological deficiencies were prevalent and no trials supported a hypothesized mediator. The most common reason was failure to engage the mediation target. Discussion focuses on directions to accelerate implementation strategy development in mental health.


Asunto(s)
Atención a la Salud , Práctica Clínica Basada en la Evidencia/organización & administración , Servicios de Salud Mental/organización & administración , Humanos , Análisis Multinivel
17.
Annu Rev Public Health ; 36: 507-23, 2015 Mar 18.
Artículo en Inglés | MEDLINE | ID: mdl-25785894

RESUMEN

Culture and climate are critical dimensions of a mental health service organization's social context that affect the quality and outcomes of the services it provides and the implementation of innovations such as evidence-based treatments (EBTs). We describe a measure of culture and climate labeled Organizational Social Context (OSC), which has been associated with innovation, service quality, and outcomes in national samples and randomized controlled trials (RCTs) of mental health and social service organizations. The article also describes an empirically supported organizational intervention model labeled Availability, Responsiveness, and Continuity (ARC), which has improved organizational social context, innovation, and effectiveness in five RCTs. Finally, the article outlines a research agenda for developing more efficient and scalable organizational strategies to improve mental health services by identifying the mechanisms that link organizational interventions and social context to individual-level service provider intentions and behaviors associated with innovation and effectiveness.


Asunto(s)
Servicios de Salud Mental , Humanos , Servicios de Salud Mental/organización & administración , Servicios de Salud Mental/normas , Cultura Organizacional , Innovación Organizacional , Evaluación de Programas y Proyectos de Salud , Mejoramiento de la Calidad/organización & administración , Servicio Social/organización & administración
18.
Blood ; 122(2): 179-87, 2013 Jul 11.
Artículo en Inglés | MEDLINE | ID: mdl-23719296

RESUMEN

Despite continued progress in the development of novel antiretroviral therapies, it has become increasingly evident that drug-based treatments will not lead to a functional or sterilizing cure for HIV(+) patients. In 2009, an HIV(+) patient was effectively cured of HIV following allogeneic transplantation of hematopoietic stem cells (HSCs) from a CCR5(-/-) donor. The utility of this approach, however, is severely limited because of the difficulty in finding matched donors. Hence, we studied the potential of HIV-resistant stem cells in the autologous setting in a nonhuman primate AIDS model and incorporated a fusion inhibitor (mC46) as the means for developing infection-resistant cells. Pigtail macaques underwent identical transplants and Simian-Human Immunodeficiency Virus (SHIV) challenge procedures with the only variation between control and mC46 macaques being the inclusion of a fusion-inhibitor expression cassette. Following SHIV challenge, mC46 macaques, but not control macaques, showed a positive selection of gene-modified CD4(+) T cells in peripheral blood, gastrointestinal tract, and lymph nodes, accounting for >90% of the total CD4(+) T-cell population. mC46 macaques also maintained high frequencies of SHIV-specific, gene-modified CD4(+) T cells, an increase in nonmodified CD4(+) T cells, enhanced cytotoxic T lymphocyte function, and antibody responses. These data suggest that HSC protection may be a potential alternative to conventional antiretroviral therapy in patients with HIV/AIDS.


Asunto(s)
Linfocitos T CD4-Positivos/inmunología , Linfocitos T CD4-Positivos/metabolismo , Proteínas Recombinantes de Fusión/genética , Síndrome de Inmunodeficiencia Adquirida del Simio/genética , Síndrome de Inmunodeficiencia Adquirida del Simio/inmunología , Virus de la Inmunodeficiencia de los Simios/inmunología , Animales , Antígenos Virales/inmunología , Linfocitos B/inmunología , Recuento de Linfocito CD4 , Relación CD4-CD8 , Linfocitos T CD4-Positivos/virología , Tratamiento Basado en Trasplante de Células y Tejidos , Expresión Génica , Trasplante de Células Madre Hematopoyéticas , Células Madre Hematopoyéticas/metabolismo , Macaca nemestrina , Síndrome de Inmunodeficiencia Adquirida del Simio/terapia , Síndrome de Inmunodeficiencia Adquirida del Simio/virología , Carga Viral , Viremia/inmunología , Viremia/virología
19.
Adm Policy Ment Health ; 41(1): 32-42, 2014 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-24065458

RESUMEN

Peer family support specialists (FSS) are parents with practical experience in navigating children's mental health care systems who provide support, advocacy, and guidance to the families of children who need mental health services. Their experience and training differ from those of formally trained mental health clinicians, creating potential conflicts in priorities and values between FSS and clinicians. We hypothesized that these differences could negatively affect the organizational cultures and climates of mental health clinics that employ both FSS and mental health clinicians, and lower the job satisfaction and organizational commitment of FSS. The Organizational Social Context measure was administered on site to 209 FSS and clinicians in 21 mental health programs in New York State. The study compared the organizational-level culture and climate profiles of mental health clinics that employ both FSS and formally trained clinicians to national norms for child mental health clinics, assessed individual-level job satisfaction and organizational commitment as a function of job (FSS vs. clinician) and other individual-level and organizational-level characteristics, and tested whether FSS and clinicians job attitudes were differentially associated with organizational culture and climate. The programs organizational culture and climate profiles were not significantly different from national norms. Individual-level job satisfaction and organizational commitment were unrelated to position (FSS vs. clinician) or other individual-level and organizational-level characteristics except for culture and climate. Both FSS' and clinicians' individual-level work attitudes were associated similarly with organizational culture and climate.


Asunto(s)
Servicios Comunitarios de Salud Mental/organización & administración , Terapia Familiar/organización & administración , Investigación sobre Servicios de Salud/organización & administración , Medicaid , Trastornos Mentales/terapia , Grupo de Atención al Paciente/organización & administración , Grupo Paritario , Apoyo Social , Adolescente , Adulto , Anciano , Niño , Preescolar , Estudios Transversales , Femenino , Humanos , Satisfacción en el Trabajo , Masculino , Persona de Mediana Edad , New York , Cultura Organizacional , Estados Unidos , Adulto Joven
20.
Implement Res Pract ; 5: 26334895241279153, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39346518

RESUMEN

Background: Despite the ubiquity of multilevel sampling, design, and analysis in mental health implementation trials, few resources are available that provide reference values of design parameters (e.g., effect size, intraclass correlation coefficient [ICC], and proportion of variance explained by covariates [covariate R 2]) needed to accurately determine sample size. The aim of this study was to provide empirical reference values for these parameters by aggregating data on implementation and clinical outcomes from multilevel implementation trials, including cluster randomized trials and individually randomized repeated measures trials, in mental health. The compendium of design parameters presented here represents plausible values that implementation scientists can use to guide sample size calculations for future trials. Method: We searched NIH RePORTER for all federally funded, multilevel implementation trials addressing mental health populations and settings from 2010 to 2020. For all continuous and binary implementation and clinical outcomes included in eligible trials, we generated values of effect size, ICC, and covariate R2 at each level via secondary analysis of trial data or via extraction of estimates from analyses in published research reports. Effect sizes were calculated as Cohen d; ICCs were generated via one-way random effects ANOVAs; covariate R2 estimates were calculated using the reduction in variance approach. Results: Seventeen trials were eligible, reporting on 53 implementation and clinical outcomes and 81 contrasts between implementation conditions. Tables of effect size, ICC, and covariate R2 are provided to guide implementation researchers in power analyses for designing multilevel implementation trials in mental health settings, including two- and three-level cluster randomized designs and unit-randomized repeated-measures designs. Conclusions: Researchers can use the empirical reference values reported in this study to develop meaningful sample size determinations for multilevel implementation trials in mental health. Discussion focuses on the application of the reference values reported in this study.


To improve the planning and execution of implementation research in mental health settings, researchers need accurate estimates of several key metrics to help determine what sample size should be obtained at each level of a multi-level study (e.g., number of patients, doctors, and clinics). These metrics include the (1) effect size, which indicates how large of a difference in the primary outcome is expected between a treatment and control group, (2) intraclass correlation coefficient, which describes how similar two people in the same group might be, and (3) covariate R 2, which indicates how much of the variability in an outcome is explained by a background variable, such as level of health at the start of a study. We collected data from mental health implementation trials conducted between 2010 and 2020. We extracted information about each of these metrics and aggregated the results for researchers to use in planning their own studies. Seventeen trials were eligible, and we were able to obtain statistical information on 53 different outcome variables from these studies. We provide a set of values which will assist in sample size calculations for future mental health implementation trials.

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