276 research outputs found
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Targeting hyperarousal: Mantram Repetition Program for PTSD in US veterans.
Background: Hyperarousal appears to play an important role in the development and maintenance of posttraumatic stress disorder (PTSD) symptoms, but current evidence-based treatments appear to address this symptom type less effectively than the other symptom clusters. The Mantram Repetition Program (MRP) is a meditation-based intervention that has previously been shown to improve symptoms of posttraumatic stress disorder (PTSD) and may be especially helpful for hyperarousal. If MRP is an effective tool for decreasing this often treatment-resistant symptom cluster, it may become an important clinical tool. Objective: The goal of this secondary analysis was to examine the effect of the MRP on hyperarousal and other PTSD symptom clusters and to examine hyperarousal as a mediator of treatment response. Method: Secondary analyses were conducted on data from a randomized controlled trial in which Veterans with PTSD (n = 173) were assigned to the MRP or a non-specific psychotherapy control and assessed pre-treatment, post-treatment and 8 weeks after treatment completion. The impact of the interventions on PTSD symptom clusters was examined, and time-lagged hierarchical linear modelling was applied to examine alternative mediation models. Results: All PTSD symptom clusters improved in both treatments. MRP led to greater reductions in hyperarousal at post-treatment (Hedge's g = 0.57) and follow-up (Hedge's g = 0.52), and in numbing at post-treatment (Hedge's g = 0.47). Hyperarousal mediated reductions in the composite of the other PTSD symptom clusters. Although the reverse model was significant as well, the effect was weaker in this direction. Conclusion: Interventions focused on the management of hyperarousal may play an important role in recovery from PTSD. The MRP appears efficacious in reducing hyperarousal, and thereby impacting other PTSD symptom clusters, as one pathway to facilitating recovery
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Compassion Meditation for Veterans with Posttraumatic Stress Disorder (PTSD): a Nonrandomized Study.
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
Alternative usage of miRNA-biogenesis co-factors in plants at low temperatures
Plants use molecular mechanisms to sense temperatures, trigger quick adaptive responses and thereby cope with environmental changes. MicroRNAs (miRNAs) are key regulators of plant development under such conditions. The catalytic action of DICER LIKE 1 (DCL1), in conjunction with HYPONASTIC LEAVES 1 (HYL1) and SERRATE (SE), produces miRNAs from double-stranded RNAs. As plants lack a stable internal temperature to which enzymatic reactions could be optimized during evolution, reactions such as miRNA processing have to be adjusted to fluctuating environmental temperatures. Here, we report that with decreasing ambient temperature, the plant miRNA biogenesis machinery becomes more robust, producing miRNAs even in the absence of the key DCL1 co-factors HYL1 and SE. This reduces the morphological and reproductive defects of se and hyl1 mutants, restoring seed production. Using small RNA-sequencing and bioinformatics analyses, we have identified specific miRNAs that become HYL1/SE independent for their production in response to temperature decrease. We found that the secondary structure of primary miRNAs is key for this temperature recovery. This finding may have evolutionary implications as a potential adaptation-driving mechanism to a changing climate.Fil: Ré, Delfina Adela. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Centro CientÃfico Tecnológico Conicet - Santa Fe. Instituto de AgrobiotecnologÃa del Litoral. Universidad Nacional del Litoral. Instituto de AgrobiotecnologÃa del Litoral; ArgentinaFil: Lang, Patricia L. M.. Institut Max Planck Fuer Gesellschaft. Institut Fur Entwicklungsbiolobie. Developmental Biology; AlemaniaFil: Yones, Cristian Ariel. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Centro CientÃfico Tecnológico Conicet - Santa Fe. Instituto de Investigación en Señales, Sistemas e Inteligencia Computacional. Universidad Nacional del Litoral. Facultad de IngenierÃa y Ciencias HÃdricas. Instituto de Investigación en Señales, Sistemas e Inteligencia Computacional; ArgentinaFil: Arce, AgustÃn Lucas. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Centro CientÃfico Tecnológico Conicet - Santa Fe. Instituto de AgrobiotecnologÃa del Litoral. Universidad Nacional del Litoral. Instituto de AgrobiotecnologÃa del Litoral; ArgentinaFil: Stegmayer, Georgina. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Centro CientÃfico Tecnológico Conicet - Santa Fe. Instituto de Investigación en Señales, Sistemas e Inteligencia Computacional. Universidad Nacional del Litoral. Facultad de IngenierÃa y Ciencias HÃdricas. Instituto de Investigación en Señales, Sistemas e Inteligencia Computacional; ArgentinaFil: Milone, Diego Humberto. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Centro CientÃfico Tecnológico Conicet - Santa Fe. Instituto de Investigación en Señales, Sistemas e Inteligencia Computacional. Universidad Nacional del Litoral. Facultad de IngenierÃa y Ciencias HÃdricas. Instituto de Investigación en Señales, Sistemas e Inteligencia Computacional; ArgentinaFil: Manavella, Pablo Andrés. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Centro CientÃfico Tecnológico Conicet - Santa Fe. Instituto de AgrobiotecnologÃa del Litoral. Universidad Nacional del Litoral. Instituto de AgrobiotecnologÃa del Litoral; Argentin
228 Blood pressure in HIV-infected patients
ObjectifveTo determine the prevalence of hypertension in a cohort of HIV-infected patients (HIV+).MethodsHIV+ patients were enrolled consecutively at ambulatory cardiology consultation. We evaluated:cardiovascular risk factors,office blood pressure,24 hours ambulatory blood pressure monitoring (ABPM).We identified patients with known hypertension, masked hypertension and white-coat effect.Results258 HIV+ patients (mean age 49±7 ans, 91% men) were consecutively included in this study between 2005 and 2009. Cardiovascular risk factors were as follows: 52% had dyslipidemia, 51% were active smokers, 40% with known hypertension and 9% were diabetics. Body mass index of the entire cohort was 24±4kg/mΣ and 89% were under antiretrovirals. Data on blood pressure are depicted in Table 1. 19% (29) were discovered to have hypertension.ConclusionHypertension is frequent in HIV-infected patients and more and more common with aging. The number of non-dipper HIV+ was high in this cohort. Studies on the impact of HIV infection and antiretrovirals on the autonomic nervous system should be performed.ParametersN=258Office systolic BP, mmHg131±19Office diastolic BP, mmHg81±10Mean 24h-systolic BP, mmHg125±13Mean 24-diastolic BP, mmHg77±9Daytime systolic BP, mmHg129±13Daytime diastolic BP, mmHg80±9Nighttime systolic BP, mmHg115±17Nighttime diastolic BP, mmHg68±10BP profile in known hypertensive patientsN=103Number of patients with appropriate BP control, %45%Number of patients with white-coat effect, %17%Non dipper, %43% in known hypertensive patients 39% in unknown hypertensive patient
Associations between neuropsychiatric and health status outcomes in individuals with probable mTBI
Mild traumatic brain injury (mTBI) is a common occurrence, and may impact distal outcomes in a subgroup of individuals. Improved characterization of health outcomes and identification of factors associated with poor outcomes is needed to better understand the impact of mTBI, particularly in those with co-occurring posttraumatic stress disorder (PTSD). Participants in a data repository of the Injury and Traumatic Stress (INTRuST) Clinical Consortium (n = 625) completed functional disability [FD] and health-related quality of life [HRQOL] questionnaires, and a subset completed a neuropsychological assessment. FD and HRQOL were compared among participants with probable mTBI (mTBI), probable mTBI with PTSD (mTBI/PTSD), and health comparison participants (HC). Associations between symptoms, neuropsychological performance, and health outcomes were examined in those with probable mTBI with and without PTSD (n = 316). Individuals in the mTBI/PTSD group endorsed poorer health outcomes than those in the mTBI group, who endorsed poorer outcomes than those in the HC group. Individuals in either mTBI group performed worse than those in the HC on verbal learning and memory and psychomotor speed. Health outcomes were correlated with mental health and postconcussive symptoms, as well as neuropsychological variables. mTBI may adversely impact self-reported health, with the greatest effect observed in individuals with co-occurring mTBI/PTSD
Invólucros cerâmicos para um sopro
Livro virtual sobre a convocatória Invólucros Cerâmicos Para Um Sopro, trazendo relatos e as experiências dos participantes e da equipe, textos poéticos e as imagens dos trabalhos
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