Association of Probable Post-Traumatic Stress Disorder with Dietary Pattern and Gut Microbiome in a Cohort of WomenOriginal paper
Karen Pendergrass is a microbiome researcher specializing in microbiome-targeted interventions (MBTIs). She systematically analyzes scientific literature to identify microbial patterns, develop hypotheses, and validate interventions. As the founder of the Microbiome Signatures Database, she bridges microbiome research with clinical practice. In 2012, based on her own investigative research, she became the first documented case of FMT for Celiac Disease, four years before the first published case study.
Read MoreWhat was studied?
Researchers examined how PTSD symptoms relate to dietary pattern and gut microbiome composition in 191 women from a longitudinal cohort substudy. Participants were grouped as Probable PTSD, Trauma without PTSD, or No Trauma based on validated symptom screening.
How was it studied?
The team combined whole-metagenome shotgun sequencing of stool samples with food-frequency questionnaire data and a Mediterranean diet adherence score (AMED). They used a triangulation method linking PTSD symptom severity to specific microbial species and metabolic pathways.
What did they find?
Higher PTSD symptom levels correlated with lower adherence to the Mediterranean diet and with reduced levels of protective species such as Eubacterium eligens. Pathways for pantothenate and coenzyme A biosynthesis, largely driven by species like Akkermansia muciniphila, were identified as PTSD protective.
Why it matters
The findings link diet, specific gut bacteria, and PTSD symptom severity in women, pointing toward possible dietary or microbiome-based strategies for PTSD prevention or relief.