El PGT-A (antes PGS) es un análisis genético embrionario para la detección de anomalías en el número de cromosomas (aneuploidías).
Aumento de las tasas de embarazo por transferencia: Seleccionar los embriones normales aumenta las posibilidades de que se dé un embarazo tras la transferencia.
Reducción del riesgo de embarazo múltiple: Ayuda a evitar la repetición de los ciclos de reproducción asistida.
Estudios independientes han comparado nuestro PTG-A vs otros laboratorios:
Mediante la utilización de la exclusiva tecnología Smart PGT-A, en Igenomix somos capaces de redefinir y mejorar constantemente la capacidad de analizar las muestras. Hemos desarrollado un algoritmo bioinformático propio basado en más de 100.000 muestras de embriones que minimiza el error humano y el factor subjetivo.
Mitoscore es un marcador biológico que ofrece un indicador del estado de energía de un embrión.
Permite seleccionar aquellos embriones que tienen mayor probabilidad de implantarse, aumentando las posibilidades de lograr un embarazo viable mediante FIV/PGT-A*
*(Diez-Juan et al.Fertil Steril. 2015)
Mitocondrias y mtDNA:
Rubio et al: In vitro fertilization with preimplantation genetic diagnosis for aneuploidies in advanced maternal age: a randomized, controlled study. Fertil Steril. 2017 May;107(5):1122-1129.
Yang Z, Liu J, Collins GS, Salem SA, Liu X, Lyle SS, et al. Selection of single blastocysts for fresh transfer via standard morphology assessment alone and with array CGH for good prognosis IVF patients: results from a randomized pilot study. Mol Cytogenet 2012 May 2; 5(1):24.
Coates A, Kung A, Mounts E, Hesla J, Bankowski B, Barbieri E, Ata B, Cohen J, Munné S. Optimal euploid embryo transfer strategy, fresh versus frozen, after Preimplantation Genetic Testing for Aneuploidies with next generation sequencing: a randomized controlled trial. Fertil Steril. 2017 Mar;107(3):723-730.e3.
Rubio C, Rienzi L, Navarro-Sánchez L, Cimadomo D, García-Pascual CM, Albricci L, Soscia D, Valbuena D, Capalbo A, Ubaldi F, Simón C.
Embryonic cell-free DNA versus trophectoderm biopsy for aneuploidy testing: concordance rate and clinical implications.Fertil Steril. 2019 Sep;112(3):510-519. doi: 10.1016/j.fertnstert.2019.04.038. Epub 2019 Jun 11.
Coates A, Bankowski BJ, Kung A, Griffin DK, Munne S. Differences in pregnancy outcomes in donor egg frozen embryo transfer (FET) cycles following Preimplantation Genetic Testing for Aneuploidies (PGT-A): a single center retrospective study. J Assist Reprod Genet. 2017 Jan;34(1):71-78.
Sanchez-Ribas et al., Transcriptomic behavior of genes associated with chromo some 21 aneuploidies in early embryo development. Fertility and Sterility, 2019; 111, 5:991-1001.
Goldwaser, Tamar et al. Cell-free DNA for the detection of fetal aneuploidy. Fertility and Sterility, 2018; 109, 2, 195 – 200.
Kuznyetsov V, Madjunkova S, Antes R, Abramov R, Motamedi G, Ibarrientos Z, et al. Evaluation of a novel non-invasive preimplantation genetic screening approach. PLoS ONE; 2018; 13(5): e0197262.
Munné S, Status of preimplantation genetic testing and embryo selection. RBMO. 2018; 37(4):393-396.
Levy et al., Prenatal diagnosis by chromosomal microarray analysis. Fertility and Sterility, 2017; 109, 2, 201–212.
Ottolini C. et al., Scientific Reports. Tripolar mitosis and partitioning of the genome arrests human preimplantation development in vitro, 2017;7:9744.
Ottolini C. et al., Scientific Reports. Tripolar mitosis and partitioning of the genome arrests human preimplantation development in vitro, 2017;7:9744.
Munné, Santiago et al. Mosaicism: “survival of the fittest” versus “no embryo left behind”. Fertility and Sterility, 2016; 105, 5, 1146 – 1149.
Bolton et al., Mouse model of chromosome mosaicism reveals lineage-specific depletion of aneuploid cells and normal developmental potential. Nature Communications, 2016; 29;7:11165.
Cimadomo D. et al, The Impact of Biopsy on Human Embryo Developmental Potential during Preimplantation Genetic Diagnosis. Hindawi, 2016, 7193075.
Scott RT, Galliano D., The challenge of embryonic mosaicism in preimplantation genetic screening. Fertility and Sterility, 2016; 105, 5.
McCoy RC, Demko ZP, Ryan A, Banjevic M, Hill M, Sigurjonsson S, et al. Evidence of Selection against Complex Mitotic-Origin Aneuploidy during Preimplantation Development. PLoS Genet, 2015; 11 (10): e1005601.
Kung A. et al., Validation of next-generation sequencing for comprehensive chromosome screening of embryos. Reproductive BioMedicine, 2015; 1472-6483.
Greco E, Minasi MG, Fiorentino F. Healthy Babies after Intrauterine Transfer of Mosaic Aneuploid Blastocysts, N Engl J Med, 2015; Nov 19;373(21):2089-90.
Yang Z et al., Selection of single blastocysts for fresh transfer via standard morphology assessment alone and with array CGH for good prognosis IVF patients: results from a randomized pilot study., 2012, 5:24.
Igenomix no se encuentra afiliado de ninguna manera a los medios aqui mencionados ni a las publicaciones de éstos. Estas menciones no constituyen el respaldo de Igenomix ni de sus productos.
