PMID- 25085642 OWN - NLM STAT- MEDLINE DCOM- 20141224 LR - 20140902 IS - 1526-632X (Electronic) IS - 0028-3878 (Linking) VI - 83 IP - 10 DP - 2014 Sep 2 TI - Neuronal loss is an early component of subacute sclerosing panencephalitis. PG - 938-44 LID - 10.1212/WNL.0000000000000749 [doi] AB - OBJECTIVE: We performed diffusion tensor imaging (DTI) and magnetic resonance spectroscopy (MRS) studies in a group of patients with subacute sclerosing panencephalitis (SSPE) in order to estimate the pathologic process underlying the phenotypic variability. METHODS: Patients with SSPE who had MRI including DTI and MRS examinations were evaluated according to their clinical status as determined by the SSPE Scoring System and their mental age as determined by tests appropriate for age and developmental level. Comparisons of fractional anisotropy (FA) and apparent diffusion coefficient (ADC) values and metabolite ratios of frontal periventricular white matter, parieto-occipital periventricular white matter, and globus pallidus in both hemispheres were made between control and SSPE groups, and between SSPE subgroups. RESULTS: Control (n = 18) and SSPE (n = 39) groups differed in all DTI and MRS parameters except FA, choline (Cho), and Cho/creatine (Cr). SSPE cases had higher ADC and lower N-acetylaspartate (NAA), NAA/Cho, and NAA/Cr in all regions of interest, suggesting cell loss. Disease progression rate and neurologic deficit appeared to be associated with the degree of ADC elevation and NAA reduction: the group with severe global deterioration had the lowest NAA (230.75 +/- 197.97 in forceps minor), and rapid progression was associated with acute reduction in NAA. CONCLUSIONS: The combination of MRS and diffusion MRI findings suggests neuronal loss can be a primary target in rapidly or subacutely progressing SSPE, and preservation or regeneration of axonal structure may be beneficial in chronic cases. CI - (c) 2014 American Academy of Neurology. FAU - Yuksel, Deniz AU - Yuksel D AD - From the Department of Pediatric Neurology (D.Y.), Dr. Sami Ulus Children's Hospital, Ankara; Department of Radiology (B.D., H.U.), Ankara Medicana Hospital, Ankara; Department of Pediatric Neurology (S.A.), Cukurova University Faculty of Medicine, Adana; and Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey. drdeniz_yuksel@yahoo.com.tr. FAU - Diren, Baris AU - Diren B AD - From the Department of Pediatric Neurology (D.Y.), Dr. Sami Ulus Children's Hospital, Ankara; Department of Radiology (B.D., H.U.), Ankara Medicana Hospital, Ankara; Department of Pediatric Neurology (S.A.), Cukurova University Faculty of Medicine, Adana; and Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey. FAU - Ulubay, Hakan AU - Ulubay H AD - From the Department of Pediatric Neurology (D.Y.), Dr. Sami Ulus Children's Hospital, Ankara; Department of Radiology (B.D., H.U.), Ankara Medicana Hospital, Ankara; Department of Pediatric Neurology (S.A.), Cukurova University Faculty of Medicine, Adana; and Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey. FAU - Altunbasak, Sakir AU - Altunbasak S AD - From the Department of Pediatric Neurology (D.Y.), Dr. Sami Ulus Children's Hospital, Ankara; Department of Radiology (B.D., H.U.), Ankara Medicana Hospital, Ankara; Department of Pediatric Neurology (S.A.), Cukurova University Faculty of Medicine, Adana; and Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey. FAU - Anlar, Banu AU - Anlar B AD - From the Department of Pediatric Neurology (D.Y.), Dr. Sami Ulus Children's Hospital, Ankara; Department of Radiology (B.D., H.U.), Ankara Medicana Hospital, Ankara; Department of Pediatric Neurology (S.A.), Cukurova University Faculty of Medicine, Adana; and Department of Pediatric Neurology (B.A.), Hacettepe University Faculty of Medicine, Ankara, Turkey. LA - eng PT - Journal Article DEP - 20140801 PL - United States TA - Neurology JT - Neurology JID - 0401060 SB - IM MH - Adolescent MH - Adult MH - Brain/metabolism/*pathology MH - Child MH - Diffusion Tensor Imaging MH - Disease Progression MH - Female MH - Globus Pallidus/metabolism/pathology MH - Humans MH - Magnetic Resonance Spectroscopy MH - Male MH - Phenotype MH - Subacute Sclerosing Panencephalitis/classification/metabolism/*pathology MH - White Matter/metabolism/pathology MH - Young Adult EDAT- 2014/08/03 06:00 MHDA- 2014/12/30 06:00 CRDT- 2014/08/03 06:00 PHST- 2014/08/03 06:00 [entrez] PHST- 2014/08/03 06:00 [pubmed] PHST- 2014/12/30 06:00 [medline] AID - WNL.0000000000000749 [pii] AID - 10.1212/WNL.0000000000000749 [doi] PST - ppublish SO - Neurology. 2014 Sep 2;83(10):938-44. doi: 10.1212/WNL.0000000000000749. Epub 2014 Aug 1.