Development of a task to measure the impact of PTSD symptoms on cognitive control and physiologic endpoints in response to interpersonal stressors

Posttraumatic stress disorder (PTSD) is linked to altered physiologic functioning, including increased blood pressure and heart rate, especially in response to stressors. Increased cardiovascular reactivity to trauma-related stressors may link PTSD to poorer cardiovascular health and thus an increased risk of cardiovascular disease. Prior work by our lab suggests that these effects of trauma may be due to persistent changes in the central and peripheral nervous systems’ stress-response system. While there is an urgent need to address these effects, limitations in our ability to effectively measure these changes have led to a paucity of data regarding the impact of current PTSD treatments on these important endpoints.

We propose to develop a novel emotional Stroop task that will quantify physiologic reactivity to interpersonal and affective cues, and quantify the impact of affective and physiologic reactivity on cognitive control. In a Veteran sample, we will characterize how performance on this task relates to PTSD symptom burden and physiologic reactivity to tilt-table testing, and gather pilot data assessing its response to pharmacologic treatment.

Subtyping the neurobiology of PTSD through novel methods for the alpha- and beta-adrenergic autonomic nervous system components: a pilot study

Trauma and posttraumatic stress disorder (PTSD) are common in veteran and civilian populations. Meanwhile, observationally estimated half of people cared for at UW autonomic nervous system (ANS) disorder clinic have a history of trauma. Increasingly, research explains this observation through an evolving understanding of the complex interplay of peripheral and central catecholamine signaling that appear to underlie much of the persistent impact of trauma. An improved understanding of ANS changes in trauma and their relationship to the complex symptoms people experience is an important research frontiers to improve a) our understanding of PTSD, b) our ability to predict effective treatment for a given person, and c) the development of new treatments for PTSD. We propose implementing a novel analysis method for non-invasive autonomic testing in context of several clinical studies at VA Puget Sound. The proposed research aims to 1) make use of ANS testing results already available to provide quantitative data for adrenergic signaling, 2) test associations of extracted biomarkers with symptoms of PTSD, and 3) collect prospective data to test the relationship of peripheral autonomic signaling to quantitative measures of central nervous system (CNS) catecholamine signaling measured by event-related potential (ERP).

Evaluating the role of virtual whole health in PC-MHI 

The COVID-19 pandemic facilitated simultaneous paradigm shifts in healthcare delivery: virtual care (telehealth and videoconferencing) and the need for “Whole Person” healthcare that targets mind, body, and spirit, per recent US Surgeon General1 and National Academy of Medicine2 calls-to-action. The pandemic also highlighted treatment delivery inequities involving rural Veterans. The current proposal will address these trends, assessing virtual VA Whole Health care use in Primary Care-Mental Health Integration (PC-MHI) for rural and non-rural Veterans with chronic pain and co-occurring posttraumatic stress disorder (PTSD). 

Evaluation of the VHA Acute Pain Service Expansion Program implementation and impact

The objective of the project is to evaluate the implementation and impact of the Acute Pain Services Expansion Program (APSEP), an expansion of the independent and formal set of services that provide comprehensive inpatient pain management consultative services and is designed to meet perioperative care needs of veterans receiving inpatient pain management.

Event- related potential (ERP) as a biomarker for subtyping neurobiology of PTSD: A pilot study

This PTSD-focused methods-development EEG project aims to develop new tools for a) predicting PTSD treatment response, b) understanding the underlying biological process, and c) supporting the development of new treatments for PSTD. We are using an event-related potential (ERP) paradigm to develop non-invasive, easily implemented in clinic biomarker to provide useful information about the neurobiology of PTSD. The specific goals are to 1) collect ERP data within a veteran population before and after treatment with methylphenidate, 2) design data analysis methods that maximize available data, and 3) add to ongoing effort of translating technological advancements for PTSD research.

Telehealth-delivered peer support to improve quality of life among Veterans with multimorbidity

We developed VetASSiST (Veterans Activating Social Support for Self-management and Treatment engagement) to help patients with multimorbidity overcome barriers to self-management and improve HRQoL. This trial has several aims: 1) Test the effect of VetASSiST, compared to usual care, on the primary outcome of baseline to one-year change in physical HRQoL, and secondary outcomes of mental HRQoL and health care utilization; 2a) Describe differences between VetASSiST and usual care on baseline to one-year changes in intermediate outcomes reflecting the functions of peer support and intervention targets; 2b) Examine whether intermediate outcomes mediate intervention-associated differences in HRQoL; and 3) Evaluate feasibility of translating VetASSiST into practice.

Opportunities for trainees may exist but a VA WOC appointment is required.

Harnessing the power of social support for weight management: a randomized controlled trial of HealthyTogether

We developed a behavioral intervention that seeks to support healthy lifestyles among Veterans by harnessing their social support networks called HealthyTogether. This trial has several aims: 1) Test whether HealthyTogether results in greater weight loss than usual care at six months among Veterans (primary); 2) Examine differences between HealthyTogether and usual care groups in secondary Veteran and partner outcomes, including health behaviors and relationship quality; 3) Examine Veteran and partner contributions to changes in their own and each other’s outcomes using dyadic analyses; and 4) Assess determinants of implementation.

Opportunities for trainees may exist but a VA WOC appointment is required.

Biomarkers in the retina for prognosticating mental health treatments (BRIGHT)

This clinical trial is designed to pilot an electroretinogram (ERG) biomarker for predicting treatment response to SSRIs in PTSD. Serotonergic brain centers project to the retina, and ERG allows assessment of brain serotonergic signals via retinal signals. In this study we are characterizing the ERG waveform in veterans with PTSD before and after SSRI administration. Patients then enter an open label phase of the study, with those who have initiated an SSRI through routine medication management invited back for a follow up study visit. This pilot data will: 1)be valuable as a feasibility study for assessing the practical application of ERG in the setting of a mental health clinic and 2)serve as a foundation for a long-term goal of developing physiologic biomarkers to match veterans to corresponding pharmacological treatments in PTSD and other mental health disorders.

Applying Critical Race Theory to investigate the impact of COVID-19-related policy changes on racial/ethnic disparities in medication treatment for opioid use disorder

With the rise in opioid use disorder (OUD) and overdose, racialized disparities in buprenorphine access and use are a significant concern nationally—studies estimate that Black patients with OUD are 50-60% less likely to access buprenorphine compared to White patients, and similar disparities have also been observed for Hispanic/Latinx patients. COVID-19-related policy changes increased flexibility in the provision of buprenorphine and other effective medications for OUD over telehealth and present an unprecedented opportunity to examine impacts of a structural intervention—relaxed MOUD restrictions—on disparities that result from structural racism and discrimination (SRD). The proposed study, guided by Public Health Critical Race Praxis, will use data from the nation’s largest provider of substance use care and quantitative and qualitative methods to examine the impact of these policy changes on racialized disparities for Black and Hispanic/Latinx patients to inform future policy and interventions to improve equitable care for OUD.