572: The use of multiplex ligation-dependent probe amplification (MLPA) versus karyotype analysis in the investigation of pregnancy loss

2013 ◽  
Vol 208 (1) ◽  
pp. S245
Author(s):  
Danielle O'Leary ◽  
Keelin O'Donoghue
2014 ◽  
Vol 291 (2) ◽  
pp. 355-355
Author(s):  
Ji Won Kim ◽  
Sang Woo Lyu ◽  
Se Ra Sung ◽  
Ji Eun Park ◽  
Dong Hyun Cha ◽  
...  

2014 ◽  
Vol 291 (2) ◽  
pp. 347-354 ◽  
Author(s):  
Ji Won Kim ◽  
Sang Woo Lyu ◽  
Sae Ra Sung ◽  
Ji Eun Park ◽  
Dong Hyun Cha ◽  
...  

2010 ◽  
Vol 56 (9) ◽  
pp. 1451-1459 ◽  
Author(s):  
Qiwei Guo ◽  
Yulin Zhou ◽  
Xiaobo Wang ◽  
Qingge Li

BACKGROUND Trisomies 13, 18, and 21 account for the majority of chromosomal aneuploidies detected in prenatal diagnosis. Diagnosis of these trisomies relies mainly on karyotype analysis. Several molecular methods have been developed for trisomy detection, but performance or throughput limitations of these methods currently constrain their use in routine testing. METHODS We developed multiplex ligation-dependent probe amplification–based real-time PCR (MLPA/rtPCR) to simultaneously detect these 3 trisomy conditions with a single reaction. We applied the method to DNA isolated from 144 blinded clinical samples that included 32 cases of trisomy 21, 11 cases of trisomy 18, 1 case of trisomy 13, and 100 unaffected control samples; results were compared with karyotype analysis. RESULTS As judged by the results of the karyotype analysis, MLPA/rtPCR correctly detected all 44 cases of trisomy in the analysis of the blinded clinical samples. The method was able to detect a change in chromosome dosage as low as 1.2-fold. CONCLUSIONS This novel PCR-based technology simultaneously identified 3 types of trisomy in a single reaction and accurately detected trisomy with mosaicism, while reducing assay times and costs compared with conventional methods. The MLPA/rtPCR approach may have applicability in noninvasive prenatal diagnosis with maternal blood samples.


2016 ◽  
Vol 89 (5) ◽  
pp. 620-624 ◽  
Author(s):  
J. G. Zimowski ◽  
D. Massalska ◽  
M. Pawelec ◽  
J. Bijok ◽  
A. Michałowska ◽  
...  

2016 ◽  
Vol 62 (3) ◽  
pp. 262-268 ◽  
Author(s):  
Wellcy Gonçalves Teixeira ◽  
Fabiana Kalina Marques ◽  
Maíra Cristina Menezes Freire

SUMMARY Objective: To describe the chromosomal alterations in patients with mental retardation (MR) using G-banding karyotype analysis. Method: A retrospective study of the results G-banding karyotype analysis of 369 patients investigated for MR was performed. Based on the structural rearrangements found, the authors searched all chromosomal regions related with breakpoints, and these were compared with the literature on MR and databases. Results: 338 (91.6%) normal cases, and 31 (8.4%) with some type of chromosomal abnormality were identified. Among the altered cases, 21 patients (67.8%) were identified with structural chromosomal alterations, nine (29%) with numerical alterations, and one (3.2%) with numerical and structural alterations. Conclusion: Structural chromosomal abnormalities were observed more frequently in this study. G-banding karyotyping contributes to the investigation of the causes of MR, showing that this technique can be useful for initial screening of patients. However, higher resolution techniques such as array based comparative genomic hybridization (aCGH) and multiplex ligation-dependent probe amplification (MPLA) can detect submicroscopic alterations commonly associated with MR.


2013 ◽  
Author(s):  
Jessica Alvarez ◽  
Traci Williams
Keyword(s):  

2012 ◽  
Author(s):  
Efrat Eichenbaum ◽  
Mitra Khaksari ◽  
Pamela A. Geller

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