The Search for Objective Signals in PTSD

On September 15, researchers at the National Intrepid Center of Excellence (NICoE) in Bethesda published a discovery study in Frontiers in Psychiatry that looks at the blood of service members and veterans with chronic PTSD symptoms.

The team analyzed samples from 208 U.S. service members and veterans, 126 with chronic PTSD symptoms and 82 without. Of about 5,400 proteins measured, 366 differed between the two groups before statistical correction, and none held after it. Pathways tied to extracellular matrix organization and vascular endothelial growth factor signaling were lower in the PTSD group, which the authors discuss in terms of vascular and immune function. They describe the work as hypothesis-generating, with validation needed in larger studies before any clinical use.

Why do objective signals matter in PTSD research?

Reliable objective signals would give researchers and clinicians a second line of evidence to sit beside a service member's own report. Most of our knowledge of a person's recovery after trauma comes from their own account. Self-report is valuable and always will be. It also has limits. People underreport when they worry about their careers, and answers shift from one day to the next.

That is why NICoE's work matters. The authors are right to call these early findings. Discovery studies like this one give a field its candidates worth testing.

Measurement at Neurova Labs

Neurova Labs built measurement into Neurova Academy from the start. The program's design is informed by fNIRS imaging. For organizations that want a physiological data point, we offer the optional iXpressGenes CoreSignals Panel, which reads 22 markers of RNA gene expression from whole blood and is designed to track inflammatory and immune signals associated with stress and recovery. It is not used to diagnose any condition. iXpressGenes runs it in a CLIA-certified, CAP-accredited laboratory. The panel uses a different method from the protein analysis in the NICoE study, and we see the two lines of research as complementary.

Our own data show why pairing the two matters. In the 2026 community cohort studies with the YMCA of Orange County (84 completers), participants completed the PCL-5 and the Kessler-6 at Day 1 and Day 30, with blood drawn at Day 1, Day 5, and Day 30. PCL-5 trauma symptom scores showed an observational change of 28 percent (29.1 to 21.0) and Kessler-6 psychological distress scores a change of 24 percent (14.0 to 10.6), each at p < 0.001. Sleep quality scores rose 22 percent.

On the biological side, a 2026 Neurova Labs cohort of 103 members, measured as RNA gene expression in whole blood at Day 1, Day 5, and Day 30, showed the largest changes among those who entered with the highest inflammatory burden. For the top 25 percent at Day 1 (26 members), the Global Inflammation Score fell 48 percent by Day 30, with 23 of 26 lower. After adjusting for starting level, the analysis suggests the protocol group fared 12 points better than 10 untreated controls, who started higher.

We describe these as observational findings, and a controlled validation study is underway. That discipline matters in a field where trust is hard to earn.

The future we are working toward

We want a future where a service member, a firefighter, or a Y member can train their brain and have objective measures available alongside their own account. Our mission is to make brain training accessible and affordable for the people who need it most, and to hold ourselves to the evidence along the way. NICoE's work moves that future closer, and we are grateful to the researchers doing it.

If you or someone you know is struggling, call 988 and press 1, or text 838255, to reach the Veterans Crisis Line.

To bring Neurova Academy to your unit, clinic, or community, visit neurovalabs.com.

About Neurova Labs

Neurova Labs is a veteran-led neurotechnology company based in Salt Lake City. Its program, Neurova Academy, is a facilitator-led neuro-immersive brain training program designed to support focus, stress regulation, and mental endurance, with no clinical infrastructure required. Programs can add the optional iXpressGenes CoreSignals Panel, which reads 22 markers of RNA gene expression from whole blood and is designed to track inflammatory and immune signals associated with stress and recovery. It is not used to diagnose any condition. iXpressGenes runs it in a CLIA-certified, CAP-accredited laboratory. Neurova Labs works with military units, first responder agencies, clinics, and community organizations. Learn more at neurovalabs.com.

Neurova Academy is a general wellness and cognitive training program. It is not a medical device and is not offered to diagnose, treat, cure, or mitigate any disease or condition, including concussion, traumatic brain injury, or CTE. References to news reporting, government publications, and published research are for commentary only and do not imply endorsement of Neurova Labs by any federal entity or research institution.