TY - JOUR T1 - Effective Treatment of Chronic Low Back Pain in Humans Reverses Abnormal Brain Anatomy and Function JF - The Journal of Neuroscience JO - J. Neurosci. SP - 7540 LP - 7550 DO - 10.1523/JNEUROSCI.5280-10.2011 VL - 31 IS - 20 AU - David A. Seminowicz AU - Timothy H. Wideman AU - Lina Naso AU - Zeinab Hatami-Khoroushahi AU - Summaya Fallatah AU - Mark A. Ware AU - Peter Jarzem AU - M. Catherine Bushnell AU - Yoram Shir AU - Jean A. Ouellet AU - Laura S. Stone Y1 - 2011/05/18 UR - http://www.jneurosci.org/content/31/20/7540.abstract N2 - Chronic pain is associated with reduced brain gray matter and impaired cognitive ability. In this longitudinal study, we assessed whether neuroanatomical and functional abnormalities were reversible and dependent on treatment outcomes. We acquired MRI scans from chronic low back pain (CLBP) patients before (n = 18) and 6 months after (spine surgery or facet joint injections; n = 14) treatment. In addition, we scanned 16 healthy controls, 10 of which returned 6 months after the first visit. We performed cortical thickness analysis on structural MRI scans, and subjects performed a cognitive task during the functional MRI. We compared patients and controls, as well as patients before versus after treatment. After treatment, patients had increased cortical thickness in the left dorsolateral prefrontal cortex (DLPFC), which was thinner before treatment compared with controls. Increased DLPFC thickness correlated with the reduction of both pain and physical disability. Additionally, increased thickness in primary motor cortex was associated specifically with reduced physical disability, and right anterior insula was associated specifically with reduced pain. Left DLPFC activity during an attention-demanding cognitive task was abnormal before treatment, but normalized following treatment. These data indicate that functional and structural brain abnormalities—specifically in the left DLPFC—are reversible, suggesting that treating chronic pain can restore normal brain function in humans. ER -