Does sperm DNA fragmentation have negative impact on embryo morphology and morphokinetics in IVF programme?. (5th October 2020)

• Record Type: Journal Article
• Authors: Anbari, Fatemeh; Khalili, Mohammad Ali; Agha‐Rahimi, Azam; Maleki, Behnam; Nabi, Ali; Esfandiari, Navid
• Is Part Of: Andrologia. Volume 52:Number 11(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-10-05
• Subjects: embryo kinetics -- IVF -- sperm chromatin dispersion test -- sperm DNA fragmentation -- time‐laps monitoring; Andrology -- Periodicals; Infertility, Male -- Periodicals; 616.69
• DOI: 10.1111/and.13798
• Languages: English
• ISSNs: 0303-4569

Abstract

Abstract: Evaluation of sperm integrity may predict the in vitro fertilisation (IVF) outcomes. The aim was to evaluate the relationship between the sperm DNA fragmentation (sDNAf) with embryo morphology and morphokinetic using time‐laps monitoring (TLM) and to select the best time points for normalisation in IVF setting. After evaluating the fertilisation and pronuclei ( Z ) scoring, 328 normally fertilised oocytes were assessed to time of pronuclei fading, time of 2 to 8 discrete cells (t2–t8) and abnormal cleavage patterns, such as multinucleation, direct cleavage, reverse cleavage and fragmentation. Sperm chromatin dispersion (SCD) assay was used for assessment of prepared sperm chromatin status. SCD was categorised into 4 groups of <6.5, 6.5–10.7, 10.7–20.1 and >20.1. The finding showed significant differences in t6 ( p = .012), t7 ( p = .045), t8 ( p = .013) and s1 ( p = .001) between 4 SCD groups. When morphokinetic variables were normalised to tPNf, this difference was observed in t2 ( p = .003) and t6 ( p = .017). Subsequently, the percentage of top quality embryos and Z 1 scoring were dependent to the sDNAf rate. In conclusion, tPNf was the best reference time point in IVF cycles. Also, we found high sDNAf rate had no negative impact on embryo morphology and morphokinetics in conventional IVF.