Document Detail


Secondary alteration of the transferrin isoelectric focusing pattern in a case of bacterial meningitis.
MedLine Citation:
PMID:  17372855     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Congenital disorders of glycosylation (CDG) are a group of inherited defects in the synthesis and processing of the linked glycans of glycoproteins and other glycoconjugates. The phenotypic spectrum presents wide variability, and clinical diagnosis is not reliable in most cases. Isoelectric focusing (IEF) of serum transferrin is widely used as a tool to detect CDG. We describe a paediatric patient presenting an altered serum transferrin pattern due to a secondary disorder of glycosylation caused by pneumococcal meningitis (Streptococcus pneumoniae, serotype 19A). During admission, brain CT scan and MRI showed acute ischaemic lesions in brain frontotemporal parenchyma, and enlarged subarachnoidal spaces in the frontal area resembling a chronic injury. This led us to screen for inborn errors of metabolism potentially associated with these findings (homocystinuria, glutaric aciduria, CDG syndromes). Biochemical studies for the screening of these inborn errors of metabolism were normal except for sialotransferrin isoelectric focusing, which showed a type 2 pattern. However, 16 days later, together with the remission of the meningitis process, the sialotransferrin pattern had normalized. The apolipoprotein C-III (an O-glycoprotein) profile was normal in all samples analysed. In conclusion, infectious events should be ruled out in the differential diagnosis of CDG syndromes. Furthermore, our findings highlight the possibility that the type 2 IEF pattern of serum sialotransferrin detected in some patients with neonatal death due to organ failure and septic events might be secondary to the infectious process.
Authors:
E Quintana; S Gala; A García-Cazorla; R Montero; C Muñoz-Almagro; M A Vilaseca; P Briones; R Artuch
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-02-15
Journal Detail:
Title:  Journal of inherited metabolic disease     Volume:  30     ISSN:  1573-2665     ISO Abbreviation:  J. Inherit. Metab. Dis.     Publication Date:  2007 Apr 
Date Detail:
Created Date:  2007-03-20     Completed Date:  2007-04-26     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7910918     Medline TA:  J Inherit Metab Dis     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  267     Citation Subset:  IM    
Affiliation:
Institut de Bioquímica Clínica, Hospital Clínic, Barcelona, Spain.
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MeSH Terms
Descriptor/Qualifier:
Carbohydrate Metabolism, Inborn Errors / diagnosis
Diagnosis, Differential
Glycosylation
Humans
Infant
Isoelectric Focusing*
Male
Meningitis, Bacterial / blood*,  diagnosis
Pneumococcal Infections / blood*,  diagnosis
Sialoglycoproteins / blood*
Transferrin / analogs & derivatives*,  metabolism*
Chemical
Reg. No./Substance:
0/Sialoglycoproteins; 0/sialotransferrin, human; 11096-37-0/Transferrin

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


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