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Related Experiment Video

Updated: Jun 27, 2025

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Decoding the Genetics of Recurrent Molar Pregnancy.

Sumita Mehta1, Sunita Bijarnia Mahay2, Abhishek Satapathy2

  • 1Department of Obstetrics and Gynecology, Babu Jagjivan Ram Memorial Hospital, Delhi, India.

Journal of Human Reproductive Sciences
|April 26, 2024
PubMed
Summary
This summary is machine-generated.

Recurrent hydatidiform mole pregnancies are linked to NLRP7 gene mutations. Oocyte donation enabled a woman with these mutations to achieve a successful ongoing pregnancy.

Keywords:
Familial recurrent hydatidiform moleNLRP7genomic imprintinghydatidiform molerecurrent molartrophoblastic diseases

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Area of Science:

  • Reproductive genetics
  • Human embryology
  • Maternal genetics

Background:

  • Hydatidiform mole involves abnormal trophoblastic hyperplasia and failed embryonic development.
  • Recurrent cases are associated with biallelic maternal mutations in NLRP7, KHDC3L, and PAD16 genes.
  • Such mutations significantly increase reproductive failure risk, with normal pregnancy rates as low as 1.8%.

Observation:

  • A 31-year-old woman experienced three prior molar pregnancies.
  • Genetic testing revealed compound heterozygosity for pathogenic variants in the NLRP7 gene (c.2738A>G and c.2078G>C).

Findings:

  • The patient was advised on assisted reproduction using oocyte donation for successful pregnancy.
  • The patient is currently experiencing a successful 5-month ongoing pregnancy via oocyte donation.

Implications:

  • Oocyte donation offers a viable pathway for women with NLRP7 mutations to achieve normal pregnancy.
  • This case highlights the importance of genetic testing in recurrent hydatidiform mole cases.
  • Understanding genetic factors in hydatidiform mole can guide reproductive strategies and improve outcomes.