Document Detail


Changes in the amounts of myelin lipids and molecular species of plasmalogen PE in the brain of an autopsy case with D-bifunctional protein deficiency.
MedLine Citation:
PMID:  18611434     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Changes in the molecular species of lipids associated with peroxisomal d-bifunctional protein (d-BP) deficiency were investigated in cerebral tissues to elucidate the pathological mechanisms underlying this disorder. Total phospholipids in the gray and white matters of the patient's brain were decreased to approximately 73% and 50% of control levels, respectively, and profound declines in myelin lipids, i.e. galactosyl ceramide and sulfatides, indicated dysmyelination in our patient with d-BP deficiency. Although the total ganglioside amounts in the gray and white matter of this patient's brain were also decreased to 61% and 37% of control levels and GM1 in the white matter was 20% of the control level, the relative amounts of GM2 in both the gray and the white matter of this patient's brain were increased in comparison to those in the control, indicating altered metabolism of gangliosides. In addition, among molecular species of phospholipids, plasmalogen-type and polyunsaturated fatty acid-containing phosphatidylethanolamine were characteristically decreased in the patient's gray matter. These alterations in the molecular species of brain lipids may affect sensitivity to oxidative stress and the membrane fluidity of neural cells, thereby producing the brain pathology of d-BP deficiency.
Authors:
Makiko Saitoh; Sumimasa Yamashita; Nobuyuki Shimozawa; Masashi Mizuguchi; Masao Iwamori
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Publication Detail:
Type:  Case Reports; Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-07-01
Journal Detail:
Title:  Neuroscience letters     Volume:  442     ISSN:  0304-3940     ISO Abbreviation:  Neurosci. Lett.     Publication Date:  2008 Sep 
Date Detail:
Created Date:  2008-07-29     Completed Date:  2008-10-14     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7600130     Medline TA:  Neurosci Lett     Country:  Ireland    
Other Details:
Languages:  eng     Pagination:  4-9     Citation Subset:  IM    
Affiliation:
Department of Developmental Medical Sciences, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan. makisaito-tky@umin.ac.jp
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MeSH Terms
Descriptor/Qualifier:
3-Hydroxyacyl CoA Dehydrogenases / deficiency*
Autopsy
Brain Chemistry*
Brain Diseases / pathology
Brain Diseases, Metabolic, Inborn / physiopathology*
Chromatography, Thin Layer
Enoyl-CoA Hydratase / deficiency*
Humans
Infant, Newborn
Isomerases / deficiency*
Male
Multienzyme Complexes / deficiency
Myelin Sheath / chemistry*
Phospholipids / analysis*
Plasmalogens / analysis*
Chemical
Reg. No./Substance:
0/Multienzyme Complexes; 0/Phospholipids; 0/Plasmalogens; EC 1.1.1.35/3-Hydroxyacyl CoA Dehydrogenases; EC 4.2.1.17/Enoyl-CoA Hydratase; EC 4.2.1.17/peroxisomal-bifunctional enzyme; EC 5.-/Isomerases

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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