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The gut microbiome has been shown to impact various facets of human health, including mental health. Studies have shown that populations with more agrarian lifestyles tend to have fewer chronic diseases and mental health issues than industrialized populations. A possible factor in these differences is the loss of co-evolved gut microbial taxa that has occurred with Westernization. This hypothesis, termed "Old Friends Hypothesis" suggests that the loss of certain gut microbes leads to immune dysregulation and increased chronic inflammation that contributes to development of cancers, cardiometabolic diseases and even neuroinflammation that can lead to negative behavioral and mental health outcomes. Other studies have shown that increasing the intake of plant foods may help increase diversity of the microbes in the gut and that this increased diversity could lead to better health outcomes in humans. The investigators propose to evaluate daily consumption of a drink consisting of a high diversity of plants (30 plant species) for four weeks on the diversity of the gut microbiome, biological signatures of inflammation, quality of life, sleep quality, and PTSD symptoms among persons with a diagnosis of PTSD. The investigators hypothesize that four weeks of daily consumption of this high plant diversity beverage (30 plant species) will increase gut microbiome ɑ-diversity, reduce markers of systemic inflammation, and improve PTSD symptom severity relative to daily consumption of a beverage containing only three plant species.
Pregnant women with a primary diagnosis of posttraumatic stress disorder (PTSD) (PTSD Checklist for DSM-5 (PCL-5) score \> 33) will be randomized to receive conventional cognitive processing therapy (CPT) (60-min session once/week for 12 weeks) or massed CPT (mCPT) (an intensive schedule of 12 60-min sessions over 5 days, approximately 2-3 sessions per day) via telemedicine, for treatment of PTSD. The research aims will be three-fold: (1) Evaluate the relative efficacy and tolerability of CPT vs. mCPT for treatment of perinatal PTSD and depression; (2) Determine the effect of CPT upon maternal-infant attachment and interaction; (3) Collect pilot data of obstetric and neonatal outcomes among those receiving the two CPT delivery schedules.
The goal of this clinical trial is to test how exercise affects learning and memory processes relevant to the treatment of PTSD. Participants will complete a baseline intake followed by two experimental sessions. During the first experimental session, participants will undergo an MRI session of imaginal exposure to traumatic memory cues followed by 30-minutes of moderate intensity exercise or low intensity exercise. Participants will complete a second session of imaginal exposure with MRI 24 hours later.
In partnership with the Veterans Affairs (VA) Palo Alto Health Care System and Stanford University, this study aims to evaluate clinical outcomes, assess implementation feasibility, and health economics of MDMA-assisted Cognitive Processing Therapy (MDMA-aCPT) in the treatment of posttraumatic stress disorder (PTSD). Through a randomized comparison of MDMA-aCPT versus Cognitive Processing Therapy (CPT), a VA gold standard treatment for PTSD, the proposed study will set the stage for understanding the potential use and application of MDMA-aCPT for PTSD within the VA system.
This study will investigate treatments for insomnia in Veterans who have posttraumatic stress disorder (PTSD). The purpose of this study is to compare a brief behavioral treatment for insomnia (BBTI) to a treatment that helps promote relaxation (progressive muscle relaxation training or PMRT). The investigators will examine improvements in psychosocial functioning and insomnia severity. The investigators will also examine whether treatment gains last over time and whether suicidal ideation decreases following insomnia treatment.
This study addresses PTSD symptoms in First Responders and Healthcare workers. Specifically, it tests whether a brief PTSD treatment (talk therapy) effectively treats PTSD when provided to First Responders and Healthcare workers by counselors in Employee Assistance Programs (EAPs). The central hypothesis is that the PTSD treatment, Prolonged Exposure for Primary Care (PE-PC), will reduce PTSD symptoms and improve functioning, compared to EAP Treatment as Usual (TAU).
This study effects the effects of transcutaneous cervical vagal nerve stimulation (tcVNS) or a sham control on brain, physiology, and PTSD symptoms in Veterans with posttraumatic stress disorder (PTSD). Veterans undergo brain imaging and physiological measures in conjunction with traumatic scripts before and after three months of twice daily treatment with tcVNS or sham stimulation at home.
This pilot pre-post trial will address a gap in knowledge related to addressing modifiable risk factors for cardiometabolic disease through treating residual insomnia, sleep difficulties that remain after successful treatment of another condition, in the context of PTSD in understudied older adults. This study provides a non-medication treatment for PTSD called Cognitive Processing Therapy (CPT) followed by a non-medication sleep education and treatment program (Cognitive Behavioral Therapy for Insomnia, CBT-I) for sleep problems that remain after completing PTSD treatment in older adults with PTSD. The aims of this project are to evaluate 1) the added benefits of treating residual insomnia on sleep and PTSD symptoms; 2) the added benefits of treating residual insomnia following CPT on cardiometabolic risk biomarkers and quality of life; and 3) the durability of the sleep, PTSD, cardiometabolic and quality of life benefits of treating residual insomnia following CPT at 6-month follow-up in older adults with PTSD.
The majority of women with perinatal posttraumatic stress disorder (PTSD) do not receive mental health treatment despite the documented associations between PTSD and adverse pregnancy outcomes; this is likely due to workforce shortages, lack of data on the effectiveness of existing evidence-based treatment for PTSD in usual care obstetrics settings, and patient-level barriers to engagement such as stigma. The proposed study is a randomized controlled trial, which will examine the effectiveness of a brief evidence-based treatment for PTSD (i.e., Written Exposure Therapy) during pregnancy and the non-inferiority of delivery of this treatment by community health workers vs. delivery by mental health clinicians.
This trial is being completed to develop a stepped-care talk therapy model for patients with PTSD. Specifically, this study is testing whether beginning with one type of therapy is better than beginning with another type of therapy, and whether moving to a different therapy after four sessions is more helpful than staying with the same therapy, depending on how well it is working. The central hypothesis is that beginning with a low- or medium-intensity PTSD intervention and then titrating intensity based on early indications of response will result in clinically significant PTSD symptom reduction with parsimony of resources.