PMID- 27633185 OWN - NLM STAT- MEDLINE DCOM- 20180103 LR - 20220418 IS - 1468-1331 (Electronic) IS - 1351-5101 (Linking) VI - 24 IP - 1 DP - 2017 Jan TI - Default mode network changes in multiple sclerosis: a link between depression and cognitive impairment? PG - 27-36 LID - 10.1111/ene.13112 [doi] AB - BACKGROUND AND PURPOSE: In multiple sclerosis (MS), depression is a common disorder whose pathophysiology is still debated. To gain insights into the pathophysiology of depression in MS, resting-state (RS) functional connectivity (FC) changes of the default mode network (DMN), salience network (SN) and executive control network (ECN) were assessed in a group of depressed MS (D-MS) patients and in appropriately matched control groups. METHODS: Sixteen D-MS patients, 17 non-depressed MS (ND-MS) patients, 17 non-depressed healthy controls and 15 depressed subjects (D-S), age, sex and education matched, cognitively preserved and non-fatigued, were enrolled. All participants underwent a neuropsychological evaluation and RS functional magnetic resonance imaging study. RESULTS: Comparing D-MS patients with D-S, within the DMN, a significant RS-FC suppression was found in the posterior cingulate cortex (PCC); comparing D-MS with ND-MS, FC was significantly increased in the anterior cingulate cortex and significantly reduced in the PCC. Within the SN increased FC in the right supramarginal gyrus and right middle frontal gyrus was found in D-MS patients compared to D-S and to ND-MS; within the ECN increased FC in the right inferior parietal cortex was found in D-MS patients compared to ND-MS patients. CONCLUSIONS: In cognitively preserved D-MS patients, FC derangement occurs in the SN, ECN and DMN. In the latter, changes occurring both in the anterior cingulate cortex and PCC suggest that depression in MS may be linked to MS itself and, in particular, to a peculiar pattern of network abnormalities favored by MS pathology through disconnection mechanisms. Reduced FC in the PCC, similar to MS patients with cognitive impairment, suggests a functional link between depression and cognitive impairment in MS. CI - (c) 2016 EAN. FAU - Bonavita, S AU - Bonavita S AD - Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences, Second University of Naples, Naples, Italy. AD - MRI Center 'SUN FISM', Neurological Institute for Diagnosis and Care 'Hermitage Capodimonte', Naples, Italy. FAU - Sacco, R AU - Sacco R AUID- ORCID: 0000-0002-6623-4649 AD - Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences, Second University of Naples, Naples, Italy. FAU - Esposito, S AU - Esposito S AD - Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences, Second University of Naples, Naples, Italy. FAU - d'Ambrosio, A AU - d'Ambrosio A AD - Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences, Second University of Naples, Naples, Italy. FAU - Della Corte, M AU - Della Corte M AD - MRI Center 'SUN FISM', Neurological Institute for Diagnosis and Care 'Hermitage Capodimonte', Naples, Italy. FAU - Corbo, D AU - Corbo D AD - MRI Center 'SUN FISM', Neurological Institute for Diagnosis and Care 'Hermitage Capodimonte', Naples, Italy. FAU - Docimo, R AU - Docimo R AD - Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences, Second University of Naples, Naples, Italy. FAU - Gallo, A AU - Gallo A AD - Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences, Second University of Naples, Naples, Italy. FAU - Lavorgna, L AU - Lavorgna L AD - Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences, Second University of Naples, Naples, Italy. FAU - Cirillo, M AU - Cirillo M AD - Neuroradiology Service, Department of Radiology, Second University of Naples, Naples, Italy. FAU - Bisecco, A AU - Bisecco A AD - Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences, Second University of Naples, Naples, Italy. FAU - Esposito, F AU - Esposito F AD - Department of Medicine Surgery and Dentistry, University of Salerno, Salerno, Italy. FAU - Tedeschi, G AU - Tedeschi G AD - Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences, Second University of Naples, Naples, Italy. AD - MRI Center 'SUN FISM', Neurological Institute for Diagnosis and Care 'Hermitage Capodimonte', Naples, Italy. LA - eng PT - Journal Article DEP - 20160916 PL - England TA - Eur J Neurol JT - European journal of neurology JID - 9506311 SB - IM MH - Adult MH - Atrophy MH - Brain Mapping MH - Cognitive Dysfunction/etiology/*physiopathology/*psychology MH - Depressive Disorder/etiology/*physiopathology/*psychology MH - Executive Function MH - Female MH - Gyrus Cinguli/physiopathology MH - Humans MH - Magnetic Resonance Imaging MH - Male MH - Middle Aged MH - Multiple Sclerosis/complications/*physiopathology/*psychology MH - Nerve Net/diagnostic imaging/*physiopathology MH - Neuropsychological Tests OTO - NOTNLM OT - cognitive impairment OT - default mode network OT - depression OT - multiple sclerosis OT - resting state f-MRI EDAT- 2016/09/17 06:00 MHDA- 2018/01/04 06:00 CRDT- 2016/09/17 06:00 PHST- 2016/01/25 00:00 [received] PHST- 2016/06/27 00:00 [accepted] PHST- 2016/09/17 06:00 [pubmed] PHST- 2018/01/04 06:00 [medline] PHST- 2016/09/17 06:00 [entrez] AID - 10.1111/ene.13112 [doi] PST - ppublish SO - Eur J Neurol. 2017 Jan;24(1):27-36. doi: 10.1111/ene.13112. Epub 2016 Sep 16.