PMID- 32905008 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20210518 IS - 2632-7376 (Electronic) IS - 2632-7376 (Linking) VI - 1 IP - 1 DP - 2020 TI - Hippocampal Resting-State Functional Connectivity Patterns are More Closely Associated with Severity of Subjective Memory Decline than Whole Hippocampal and Subfield Volumes. PG - tgaa019 LID - 10.1093/texcom/tgaa019 [doi] LID - tgaa019 AB - The goal of this study was to examine whether hippocampal volume or resting-state functional connectivity (rsFC) patterns are associated with subjective memory decline (SMD) in cognitively normal aged adults. Magnetic resonance imaging data from 53 participants (mean age: 71.9 years) of the Boston University Alzheimer's Disease Center registry were used in this cross-sectional study. Separate analyses treating SMD as a binary and continuous variable were performed. Subfield volumes were generated using FreeSurfer v6.0, and rsFC strength between the head and body of the hippocampus and the rest of the brain was calculated. Decreased left whole hippocampal volume and weaker rsFC strength between the right body of the hippocampus and the default mode network (DMN) were found in SMD+. Cognitive Change Index score was not correlated with volumetric measures but was inversely correlated with rsFC strength between the right body of the hippocampus and 6 brain networks, including the DMN, task control, and attentional networks. These findings suggest that hippocampal rsFC patterns reflect the current state of SMD in cognitively normal adults and may reflect subtle memory changes that standard neuropsychological tests are unable to capture. CI - (c) The Author(s) 2020. Published by Oxford University Press. FAU - Zajac, Lauren AU - Zajac L AD - Department of Anatomy & Neurobiology, Boston University School of Medicine, Boston, MA 02118, USA. FAU - Koo, Bang-Bon AU - Koo BB AD - Department of Anatomy & Neurobiology, Boston University School of Medicine, Boston, MA 02118, USA. FAU - Tripodis, Yorghos AU - Tripodis Y AD - Boston University Alzheimer's Disease Center, Boston University School of Medicine, Boston, MA 02118, USA. FAU - Mian, Asim AU - Mian A AD - Department of Radiology, Boston University School of Medicine, Boston, MA 02118, USA. FAU - Steinberg, Eric AU - Steinberg E AD - Boston University Alzheimer's Disease Center, Boston University School of Medicine, Boston, MA 02118, USA. FAU - Mez, Jesse AU - Mez J AD - Boston University Alzheimer's Disease Center, Boston University School of Medicine, Boston, MA 02118, USA. FAU - Alosco, Michael L AU - Alosco ML AD - Boston University Alzheimer's Disease Center, Boston University School of Medicine, Boston, MA 02118, USA. FAU - Cervantes-Arslanian, Anna AU - Cervantes-Arslanian A AD - Department of Neurology, Boston University School of Medicine, Boston, MA 02118, USA. FAU - Stern, Robert AU - Stern R AD - Department of Anatomy & Neurobiology, Boston University School of Medicine, Boston, MA 02118, USA. FAU - Killiany, Ronald AU - Killiany R AD - Department of Anatomy & Neurobiology, Boston University School of Medicine, Boston, MA 02118, USA. LA - eng GR - UL1 TR001430/TR/NCATS NIH HHS/United States PT - Journal Article DEP - 20200528 PL - United States TA - Cereb Cortex Commun JT - Cerebral cortex communications JID - 101767128 PMC - PMC7463163 OTO - NOTNLM OT - aging OT - brain connectomics OT - cognition OT - hippocampus OT - humans OT - magnetic resonance imaging EDAT- 2020/09/10 06:00 MHDA- 2020/09/10 06:01 PMCR- 2020/05/28 CRDT- 2020/09/09 18:10 PHST- 2020/04/03 00:00 [received] PHST- 2020/05/18 00:00 [revised] PHST- 2020/05/18 00:00 [accepted] PHST- 2020/09/09 18:10 [entrez] PHST- 2020/09/10 06:00 [pubmed] PHST- 2020/09/10 06:01 [medline] PHST- 2020/05/28 00:00 [pmc-release] AID - tgaa019 [pii] AID - 10.1093/texcom/tgaa019 [doi] PST - ppublish SO - Cereb Cortex Commun. 2020;1(1):tgaa019. doi: 10.1093/texcom/tgaa019. Epub 2020 May 28.