title: Reduced volumes of the CA1 and CA4-dentate gyrus hippocampal subfields in systemic lupus erythematosus.
abstract: Introduction There is evidence for hippocampal dysfunctions in systemic lupus erythematosus (SLE), which may contribute to neuropsychiatric impairments. However, fine structural alterations of the hippocampus have not been investigated in SLE. Methods We measured the volume of hippocampal subfields in 18 SLE patients and 20 healthy control individuals matched for age, gender, and education. The MRI protocol included structural T1 volumes (Philips Achieva 3T scanner, magnetization-prepared rapid acquisition gradient echo (MPRAGE)). For image processing, we used the neuGRID platform and the longitudinal pipeline of FreeSurfer v6.0 with the "hipposubfields" flag. Results Patients with SLE showed reduced volumes of CA1 (Cornu Ammonis 1) and CA4-dentate gyrus subfields relative to the control individuals. Smaller CA1 volumes were associated with worse performance on the Addenbrooke's Cognitive Examination. Conclusions These preliminary results indicate a prominent vulnerability and functional relevance of the CA1 hippocampal subfield in SLE.
authors.affiliation: 1 National Institute of Rheumatology and Physiotherapy, Budapest, Hungary.
authors.forename: N
authors.initials: N
authors.lastname: Bódi
authors.affiliation: 1 National Institute of Rheumatology and Physiotherapy, Budapest, Hungary.
authors.forename: A
authors.initials: A
authors.lastname: Polgár
authors.affiliation: 1 National Institute of Rheumatology and Physiotherapy, Budapest, Hungary.|2 Rheumatology Division of Third Department of Medicine, Semmelweis University, Budapest, Hungary.
authors.forename: E
authors.initials: E
authors.lastname: Kiss
authors.affiliation: 1 National Institute of Rheumatology and Physiotherapy, Budapest, Hungary.
authors.forename: Á
authors.initials: Á
authors.lastname: Mester
authors.affiliation: 1 National Institute of Rheumatology and Physiotherapy, Budapest, Hungary.|2 Rheumatology Division of Third Department of Medicine, Semmelweis University, Budapest, Hungary.
authors.forename: G
authors.initials: G
authors.lastname: Poór
authors.affiliation: 3 Budapest University of Technology and Economics, Department of Cognitive Science, Budapest, Hungary.|4 Nyírő Gyula Hospital-National Institute of Psychiatry and Addictions, Budapest, Hungary.|5 University of Szeged, Department of Physiology, Szeged, Hungary.
authors.forename: S
authors.initials: S
authors.lastname: Kéri
mesh_terms: D000328:Adult; D056547:CA1 Region, Hippocampal / Q000473:pathology*; D060825:Cognitive Dysfunction / Q000209:etiology; D018891:Dentate Gyrus / Q000473:pathology*; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008180:Lupus Erythematosus, Systemic / Q000000981:diagnostic imaging / Q000473:pathology*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008875:Middle Aged
keywords: Hippocampus; cognition; magnetic resonance imaging; systemic lupus erythematosus