Related Experiment Videos
Shared HLA antigens between parents and recurrent spontaneous abortion
International Journal of Fertility
|July 1, 1986
Summary
Shared human leukocyte antigen (HLA) antigens between parents do not appear to cause recurrent spontaneous abortions. This study found similar HLA antigen sharing in couples with and without a history of recurrent pregnancy loss.
Area of Science:
- Immunogenetics
- Reproductive Medicine
- Obstetrics
Background:
- Recurrent spontaneous abortion (RSA) affects 1-5% of couples.
- The etiology of RSA remains largely unknown in many cases.
- Human leukocyte antigen (HLA) sharing between partners has been proposed as a potential cause of RSA.
Purpose of the Study:
- To investigate the association between shared HLA antigens and recurrent spontaneous abortion.
- To determine if HLA antigen sharing is a significant factor in unexplained RSA.
Main Methods:
- Human leukocyte antigen (HLA) typing was performed on ten couples with a history of at least three consecutive spontaneous abortions.
- HLA antigen frequencies were compared between couples with RSA and 57 control couples with normal fertility.
- Literature data on HLA sharing in RSA was also analyzed.
Main Results:
- No significant difference was observed in the frequencies of shared HLA-A, -B, and -DR antigens between couples with RSA and control couples.
- Analysis of existing literature data also did not support a link between parental HLA sharing and RSA.
- These findings suggest HLA antigen sharing is not a determinant of recurrent spontaneous abortion.
Conclusions:
- Parental sharing of HLA antigens is unlikely to be a cause of recurrent spontaneous abortion of unknown etiology.
- Further research is needed to elucidate the complex factors contributing to recurrent pregnancy loss.
- This study challenges a previously hypothesized mechanism for RSA.