Predictive value of DNA integrity analysis in idiopathic recurrent pregnancy loss following spontaneous conception

Kishlay Kumar, Deepika Deka, Amar Singh, D. K. Mitra, B. R. Vanitha, Rima Dada

Research output: Contribution to journalArticlepeer-review

64 Scopus citations


Purpose: Standard semen parameters are poor predictors of fertility potential. To date, apart from, paternal karyotyping sperm factors are not evaluated in recurrent pregnancy loss (RPL), only recent studies have emphasized the role of sperm factors in early embryonic development as sperm transcribes genes critical for early embryonic development. Sperm DNA integrity is useful diagnostic and prognostic marker and has clinical implications in idiopathic recurrent pregnancy loss (iRPL) following spontaneous conception. The aim of this study was to assess DNA integrity in cases experiencing iRPL following spontaneous conception. Methods: Semen samples from 45 patients and 20 controls were analyzed as per WHO 1999 guidelines and sperm chromatin structure assay (SCSA) was used to measure DNA fragmentation index (DFI). Results: By applying receiver operating curve (ROC) analysis, sperm DFI of approximately 26 % was found in male partner of couples experiencing iRPL. Conclusions: Our data indicate that sperm from men with a history of iRPL have a higher percentage of DNA damage as compared to control group, and this can explain pregnancy loss in these patients. Menwith higherDFI are infertile whereas men with lower DFI (26 %) are able to conceive but experience recurrent pregnancy loss. Thus it is important to evaluate sperm DFI in couples experiencing iRPL to understand exact aetiology of RPL and determine prognosis and management.

Original languageEnglish (US)
Pages (from-to)861-867
Number of pages7
JournalJournal of Assisted Reproduction and Genetics
Issue number9
StatePublished - Sep 2012

Bibliographical note

Funding Information:
Acknowledgment The grant and support from Department of Biotechnology (BT/PR13558/MED/30/282/2010) is highly acknowledged.


  • DFI
  • Idiopathic recurrent pregnancy loss
  • SCSA
  • Sperm


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