Key result
PTSD shows no link to altered resting sympathetic transduction in combat veterans.
Why the study?
PTSD is associated with autonomic dysregulation contributing to cardiovascular risk, but sympathetic transduction, defined as the blood pressure response to MSNA, had not been examined in PTSD.
Cross-Sectional (n=28)
No
Standardized Mean Difference: -0.165 (95% CI -0.74–0.95)
Absolute Event Rate: 1.16% vs 1.04%
p-value: p=0.670
Resting sympathetic transduction to blood pressure is not altered in physically healthy combat veterans with PTSD compared to controls, suggesting that heightened cardiovascular risk in PTSD may be driven by other mechanisms.
No takes yet. Share an insight, caveat, or question.
Preserved resting sympathetic transduction in PTSD veterans cautions against targeting this pathway; leaves open alternative mechanisms for elevated cardiovascular risk.
Zanuzzi et al. (2026) conducted a cross-sectional in Posttraumatic stress disorder (PTSD) (n=28). Posttraumatic stress disorder (PTSD) vs. Age-matched controls without PTSD was evaluated on Resting sympathetic transduction (peak change in mean arterial pressure following a spontaneous MSNA burst) (Hedges' g -0.165, 95% CI -0.74 to 0.95, p=0.670). Resting sympathetic transduction did not differ between combat veterans with PTSD and age-matched controls (1.16 vs 1.04 mmHg; p=0.67), suggesting blood pressure responses are not altered in PTSD.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: