Transplantation of gut microbiota derived from patients with schizophrenia induces schizophrenia-like behaviors and dysregulated brain transcript response in miceOriginal 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 whether gut microbiota from schizophrenia patients could transfer schizophrenia-like traits to mice. They first compared gut microbiome composition between schizophrenia patients and healthy controls.
How was it studied?
Fecal microbiota from schizophrenia patients and healthy controls was transplanted into specific pathogen free mice. The team used 16S rDNA sequencing to profile gut microbiota and integrative transcriptome analysis to examine brain gene expression.
What did they find?
Mice given schizophrenia patient microbiota developed sociability deficits and hyperactivity, mirroring schizophrenia-like behavior. Their brains showed dysregulated transcript response and altered splicing of schizophrenia-relevant genes, with 10 key genes linked to schizophrenia and 4 of these correlated with 12 differential bacterial genera.
Why it matters
The findings suggest gut microbiota can influence brain gene expression and social behavior through the gut-brain axis. This supports a possible causal role for gut microbiota in schizophrenia pathogenesis, not merely an association.