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Paracentric inversion 11.

K Miller1, G Raabe, C Schlesinger

  • 1Department of Human Genetics, Medizinische Hochschule Hannover, Federal Republic of Germany.

Annales De Genetique
|January 1, 1989
PubMed
Summary
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A familial case of chromosome 11 paracentric inversion was identified in a woman experiencing recurrent miscarriages. Further literature review revealed 19 additional cases, classifying these inversions into three types based on breakpoints.

Area of Science:

  • Human Genetics
  • Cytogenetics
  • Reproductive Biology

Background:

  • Recurrent pregnancy loss is a significant concern in reproductive medicine.
  • Chromosomal abnormalities are a known cause of recurrent pregnancy loss.
  • Paracentric inversions, while often asymptomatic in carriers, can lead to unbalanced gametes and reproductive issues.

Observation:

  • A novel familial case of paracentric inversion of chromosome 11, specifically inv(11)(q21q23.3), was identified.
  • The inversion was ascertained through a female carrier presenting with a history of multiple abortions.
  • This case highlights the potential reproductive consequences of chromosomal rearrangements.

Findings:

  • A comprehensive literature review identified 19 previously reported cases of paracentric inversion 11.

Related Experiment Videos

  • Analysis of these cases, including the newly presented one, suggests that inversions of the long arm of chromosome 11 can be categorized into three distinct types based on their specific breakpoints.
  • This classification aids in understanding the structural variations and their potential impact.

    • Implications:

    • The identification and classification of chromosome 11 paracentric inversions are crucial for genetic counseling of individuals experiencing recurrent miscarriages.
    • Understanding the different types of inversions based on breakpoints may help in predicting reproductive risks.
    • Further research into the mechanisms and outcomes of such chromosomal rearrangements is warranted to improve reproductive health outcomes.