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Maternal 3;13 chromosome insertion, with severe pre-eclampsia

P A Boyd¹, E J Maher, R H Lindenbaum

¹Prenatal Diagnosis Unit, John Radcliffe Hospital, Headington, Oxford, UK.

Clinical Genetics

|January 1, 1995

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Severe pre-eclampsia in a young mother was linked to a rare genetic condition, partial trisomy 13, in her infant. This genetic anomaly, inherited from the mother, may explain other family pregnancy losses.

Area of Science:

Genetics
Maternal-Fetal Medicine
Reproductive Biology

Background:

Pre-eclampsia is a severe pregnancy complication.
Trisomy 13 (Patau syndrome) is a genetic disorder.
Maternal genetic insertions can lead to chromosomal abnormalities.

Observation:

A young primigravida experienced severe pre-eclampsia and premature delivery at 32 weeks.
The infant exhibited growth retardation, dysmorphic features, and died at 4 days.
Chromosome analysis revealed partial trisomy 13 due to maternal 13q into 3p insertion.

Findings:

The maternal insertion was identified in three other family members.
This insertion may be linked to recurrent pregnancy losses (abortions, stillbirths, neonatal deaths).

Related Experiment Videos

This is the first reported case of partial trisomy 13q associated with pre-eclampsia.

Implications:

Highlights a potential genetic cause for severe pre-eclampsia and recurrent pregnancy loss.
Emphasizes the importance of genetic counseling for families with unexplained pregnancy complications.
Suggests a possible link between specific chromosomal rearrangements and pregnancy outcomes.