Predictors of IVF/ICSI success following treatment of endometriosis as the cause of primary infertility.

Objectives: Treatment of endometriosis prior to IVF/ICSI could be followed by the significant reduction of ovarian reserve. The aim is to identify potential markers of the IVF/ICSI outcome in patients with endometriosis associated infertility and to evaluate their clinical significance.

Material And Methods: The prospective cohort study included 73 patients with primary infertility caused by endometriosis that were subjected to 77 IVF/ICSI cycles.

Expression patterns of mitochondrial OXPHOS components, mitofusin 1 and dynamin-related protein 1 are associated with human embryo fragmentation.

Developmental dysfunction in embryos, such as a lethal level of fragmentation, is assumed to be mitochondrial in origin. This study investigated the molecular basis of mitochondrial impairment in embryo fragmentation. Transcription patterns of factors that determine mitochondrial functionality: (i) components of the oxidative phosphorylation (OXPHOS) - complex I, cytochrome b, complex IV and ATP synthase; (ii) mitochondrial membrane potential (MMP); (iii) mitochondrial DNA (mtDNA) content and (iv) proteins involved in mitochondrial dynamics, mitofusin 1 (Mfn1) and dynamin related protein 1 (Drp1) were examined in six-cells Day 3 non-fragmented (control), low-fragmented (LF) and high-fragmented (HF) human embryos.