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  • Mutation-free baby born from a mitochondrial encephalopathy, lactic acidosis and stroke-like syndrome carrier after blastocyst trophectoderm preimplantation genetic diagnosis.

Mutation-free baby born from a mitochondrial encephalopathy, lactic acidosis and stroke-like syndrome carrier after blastocyst trophectoderm preimplantation genetic diagnosis.

Mitochondrion (2014-08-28)
Björn Heindryckx, Jitesh Neupane, Mado Vandewoestyne, Christodoulos Christodoulou, Yens Jackers, Jan Gerris, Etienne Van den Abbeel, Rudy Van Coster, Dieter Deforce, Petra De Sutter
ABSTRACT

To investigate the applicability of preimplantation genetic diagnosis (PGD), we used trophectoderm (TE) biopsy to determine the mutation load in a 35-year-old female with mitochondrial encephalopathy, lactic acidosis and stroke-like syndrome (MELAS). Transfer of a mutation-free blastocyst gave birth to a healthy boy with undetectable mutation in any of the analyzed tissues. We found strong correlation among TE cells (r=0.90) within blastocysts and also between cytoplasmic fragments and TE (r=0.95). This is the first case of mutation-free baby born from a MELAS patient after TE biopsy and supports the applicability of blastocyst PGD for patients with mtDNA disorders to establish healthy offspring.

MATERIALS
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