Document Detail


Presence of Trypanosoma cruzi in pregnant women and typing of lineages in congenital cases.
MedLine Citation:
PMID:  22906640     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The objective of this study was to determine the presence of Trypanosoma cruzi in blood samples of mothers with chronic Chagas disease and their newborn by conventional PCR targeted to minicircle kinetoplastidic DNA (kDNA), and to determine the lineages in mother/newborn pairs of the congenital cases by hybridization assays with probes belonging to the TcII, TcI and TcV Discrete Typing Units (DTU). In 63 (57.2%) of the mothers the presence of circulating T. cruzi was demonstrated by PCR immediately before delivery and in three newborn (3%) congenital transmission was confirmed by serial PCR and conventional serology between 1 and 16 months of life, at which point treatment was started. The hybridization signals showed that two of the newborn had the same DTU as their mother (TcI, TcII and TcV), whilst in the third congenital case only TcV was detected in the cord blood, suggesting that in this infant TcI and TcII did not cross the placenta or the parasite was not present at a detectable level. Levels T. cruzi DNA was determined by TaqMan Probe based Real Time PCR assay targeted to nuclear satellite sequences in these three pairs of samples.
Authors:
Sylvia Ortiz; Inés Zulantay; Aldo Solari; Margarita Bisio; Alejandro Schijman; Yves Carlier; Werner Apt
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-10
Journal Detail:
Title:  Acta tropica     Volume:  -     ISSN:  1873-6254     ISO Abbreviation:  Acta Trop.     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-8-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370374     Medline TA:  Acta Trop     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012. Published by Elsevier B.V.
Affiliation:
Biología Celular y Molecular, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, P.O. Box 427, Santiago 3, Chile.
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