TY - BOOK AU - Benson, Richard T AU - Hsia, Amie W TI - Molecular signature of penumbra in acute ischemic stroke: a pilot transcriptomics study SN - 2328-9503 PY - 2019/// KW - *Brain Ischemia/ge [Genetics] KW - *Brain/pa [Pathology] KW - *Cerebrovascular Circulation/ph [Physiology] KW - *Stroke/ge [Genetics] KW - Aged KW - Aged, 80 and over KW - Brain Ischemia/di [Diagnosis] KW - Brain/me [Metabolism] KW - Diffusion Magnetic Resonance Imaging KW - Female KW - Humans KW - Male KW - Middle Aged KW - Research Design KW - Stroke/di [Diagnosis] KW - MedStar Washington Hospital Center KW - Neurology KW - Journal Article N2 - We aimed to characterize peripheral blood gene expression profile of penumbra defined as MRI perfusion-diffusion mismatch (PD MM) in peripheral blood of patients with acute ischemic stroke. We studied 23 patients. Perfusion-diffusion mismatch volume was observed to be associated and significantly correlated with the expression of 34 genes including those related to inflammation, SUMOylation, and coagulation; while lipopolysaccharide inhibition was identified to be a candidate upstream regulator of these processes (z-score -2.38, P = 0.04). Penumbral volume is correlated with a specific gene expression profile in the peripheral blood characterized by overlap of inflammatory and neuroprotective pathways that are regulated by lipopolysaccharide inhibition UR - https://dx.doi.org/10.1002/acn3.757 ER -