scholarly journals Relationship between varicocele and sperm DNA damage and the effect of varicocele repair: a meta-analysis

2012 ◽  
Vol 25 (3) ◽  
pp. 307-314 ◽  
Author(s):  
Ying-Jun Wang ◽  
Rong-Qiu Zhang ◽  
Yan-Jun Lin ◽  
Rong-Gui Zhang ◽  
Wei-Li Zhang
2021 ◽  
Vol 26 (1) ◽  
Author(s):  
Prashanth K. Adiga ◽  
Srisailesh Vitthala ◽  
Shivaranjeni

Abstract Background The routine semen analysis fails to detect sperm DNA damage which contributes to the majority of male factor infertility. Sperm DNA fragmentation test (DFI) measures the sperm DNA damage. Blastocyst formation is an important step in IVF ± ICSI. At present, the literature lacks any data that correlates DFI and blastocyst formation. Main body of the abstract We searched MEDLINE and other databases till 2020 for the studies that reported on sperm DNA damage and blastocyst formation in assisted reproductive technology (ART). The outcomes analyzed were (1) a comparison of blastulation rates in high DFI and low DFI groups. (2) Comparison of blastulation rates in high DFI and low DFI groups based on (a) different sperm DNA fragmentation assays (COMET, SCD, SCSA, TUNEL), (b) different types of ART (IVF/IVF + ICSI/ICSI). 10 studies were included in this review. A non-significant increase in the blastocyst formation was observed in high DFI group (OR = 0.70; 95% CI = 0.4 to 1.21; P = 0.20) and with SCD and TUNEL assays. Short conclusion Our study emphasizes on sperm DNA fragmentation (sperm DNA damage) as an important marker of blastocyst formation. The results of this meta-analysis suggest that the high sperm DNA fragmentation may not adversely affect the blastocyst formation.


2016 ◽  
Vol 0 (0) ◽  
pp. 0 ◽  
Author(s):  
Luke Simon ◽  
Armand Zini ◽  
Alina Dyachenko ◽  
Antonio Ciampi ◽  
DouglasT Carrell

2021 ◽  
Author(s):  
Jordi Ribas‐Maynou ◽  
Marc Yeste ◽  
Nerea Becerra‐Tomás ◽  
Kenneth I. Aston ◽  
Emma R. James ◽  
...  

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