Efficiency of multiplex ligation-dependent probe amplification combined with short tandem repeat linkage analysis for the prenatal diagnosis for Duchenne muscular dystrophy / 中华医学遗传学杂志
Chinese Journal of Medical Genetics
;
(6): 40-44, 2013.
Article
Dans Chinois
| WPRIM
| ID: wpr-232209
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the efficiency of multiplex ligation-dependent probe amplification (MLPA) combined with short tandem repeat (STR) linkage analysis for the prenatal diagnosis for Duchenne muscular dystrophy (DMD).</p><p><b>METHODS</b>Gender of the fetus was first determined by the presence of Y chromosome sex-determining gene (SRY). Subsequently, combined MLPA and STR linkage analysis were applied for the probands, pregnant women and fetuses in 45 affected families.</p><p><b>RESULTS</b>Among the 45 families, 31 SRY-positive fetuses were identified, among whom six were diagnosed with DMD. For 14 SRY-negative fetuses, four were diagnosed as carriers. The remainders were normal.</p><p><b>CONCLUSION</b>MLPA can detect mutations in the exons of dystrophin gene, whilst STR linkage analysis can determine whether the fetus has inherited the maternal X chromosome bearing the mutant gene. As the result, the method can detect affected fetuses in which no exonic mutations are detected with MLPA. By combining the two methods, the diagnostic rate for DMD can be greatly improved.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Diagnostic prénatal
/
Exons
/
Dystrophine
/
Répétitions microsatellites
/
Myopathie de Duchenne
/
Diagnostic
/
Réaction de polymérisation en chaine multiplex
/
Génétique
/
Hétérozygote
/
Liaison génétique
Type d'étude:
Etude diagnostique
Limites du sujet:
Femelle
/
Humains
/
Mâle
/
Grossesse
langue:
Chinois
Texte intégral:
Chinese Journal of Medical Genetics
Année:
2013
Type:
Article
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