PMID- 30658120 OWN - NLM STAT- MEDLINE DCOM- 20200618 LR - 20200618 IS - 1873-6815 (Electronic) IS - 0531-5565 (Linking) VI - 118 DP - 2019 Apr TI - A novel neurocognitive approach for placebo analgesia in neurocognitive disorders. PG - 106-116 LID - S0531-5565(18)30082-2 [pii] LID - 10.1016/j.exger.2019.01.011 [doi] AB - Neural correlates of placebo analgesia (PA) in patients with neurocognitive disorders have not yet been elucidated. The present study aimed to evaluate how and to what extent executive (dys)functions of the medial prefrontal cortex (MPFC) may be related to PA. To this end, twenty-three subjects complaining of different cognitive deficits (from mild cognitive impairment likely due to Alzheimer's disease to mild AD) were recruited. PA was investigated by a well-known experimental venipuncture pain paradigm (open versus hidden [O-H] application of lidocaine). Patients also underwent a comprehensive neuropsychological evaluation and a functional magnetic resonance imaging (fMRI) GO/No-GO task for eliciting selective activation of the MPFC. Selected neuropsychological variables were correlated to the OH-PA paradigm. The association between the fMRI response on the "No-GO" versus "GO" contrast and PA was investigated over the whole-brain by regression analysis. We showed the existence of a relationship between a lower PA and MPFC dysfunctions through the neuropsychological and fMRI assessment. A separate voxel-based morphometry (VBM) analysis controlled for possible influence of grey matter (GM) volume reduction on both fMRI results and PA. fMRI results were not directly affected by, and therefore independent of, disease-specific GM atrophy, which was indeed located more anteriorly within the rostral anterior cingulate and inversely correlated with PA. Our findings shed new light on the underestimated contribution of executive (dys)functions mediated by the MPFC (response-inhibition, self-monitoring and set-shifting abilities) in PA pathogenesis, with a special purely (i.e. independently from brain structural alterations) functional role played by the MCC. Results are discussed in terms of possible clinical relevance in the management of patients with neurocognitive disorders. CI - Copyright (c) 2019 Elsevier Inc. All rights reserved. FAU - Palermo, S AU - Palermo S AD - Department of Psychology, University of Turin, Italy. Electronic address: sara.palermo@unito.it. FAU - Rainero, I AU - Rainero I AD - Neurology 1st Unit, Department of Neuroscience "Rita Levi Montalcini", University of Turin, Turin, Italy. FAU - Stanziano, M AU - Stanziano M AD - Postgraduate School in Radiodiagnostics, University of Milan, Milan, Italy; Brain Imaging Center, Neuroscience Institute of Turin (NIT), Turin, Italy. FAU - Vase, L AU - Vase L AD - Department of Psychology and Behavioural Sciences, School of Business and Social Sciences, Aarhus University, Aarhus, Denmark. FAU - D'Agata, F AU - D'Agata F AD - Brain Imaging Center, Neuroscience Institute of Turin (NIT), Turin, Italy. FAU - Rubino, E AU - Rubino E AD - Neurology 1st Unit, Department of Neuroscience "Rita Levi Montalcini", University of Turin, Turin, Italy. FAU - Fonio, P AU - Fonio P AD - Department of Diagnostic and Interventional Imaging, Radiology Institute, University of Turin, A.O.U. "Citta della Salute e della Scienza di Torino", Turin, Italy. FAU - Sardanelli, F AU - Sardanelli F AD - Department of Biomedical Sciences for Health, University of Milan, San Donato Milanese, Italy; IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy. FAU - Amanzio, M AU - Amanzio M AD - Department of Psychology, University of Turin, Italy; European Innovation Partnership on Active and Healthy Ageing, Brussels, Belgium. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190115 PL - England TA - Exp Gerontol JT - Experimental gerontology JID - 0047061 SB - IM MH - Aged MH - Alzheimer Disease/physiopathology MH - Analgesia/*methods MH - Executive Function/physiology MH - Female MH - Gray Matter/pathology MH - Humans MH - Magnetic Resonance Imaging MH - Male MH - Middle Aged MH - Neurocognitive Disorders/*physiopathology MH - Neuropsychological Tests MH - Pain Perception MH - Placebo Effect MH - Prefrontal Cortex/diagnostic imaging/physiology OTO - NOTNLM OT - Anterior cingulate cortex OT - Executive functions OT - Neurocognitive disorders OT - Placebo analgesia OT - Response inhibition OT - fMRI EDAT- 2019/01/19 06:00 MHDA- 2020/06/19 06:00 CRDT- 2019/01/19 06:00 PHST- 2018/02/05 00:00 [received] PHST- 2018/12/24 00:00 [revised] PHST- 2019/01/11 00:00 [accepted] PHST- 2019/01/19 06:00 [pubmed] PHST- 2020/06/19 06:00 [medline] PHST- 2019/01/19 06:00 [entrez] AID - S0531-5565(18)30082-2 [pii] AID - 10.1016/j.exger.2019.01.011 [doi] PST - ppublish SO - Exp Gerontol. 2019 Apr;118:106-116. doi: 10.1016/j.exger.2019.01.011. Epub 2019 Jan 15.