Sharing at the major histocompatibility complex affects the secondary sex ratio in differing ways

Paola Astolfi, Mariaclara Cuccia, Calogero Caruso, Biagio Favoino, Marianna Fazzari, Vilma Mantovani, Patrizia Lulli, Mariateresa Illeni, Miryam Martinetti

Research output: Contribution to journalArticle

Abstract

We analysed the effect of HLA loci on the secondary sex ratio, and investigated whether allele sharing between parents and between mother and child, or child homozygosity, affected the viability of male embryos, which are generally less resistant to unfavourable conditions during pregnancy. The sharing conditions at the B and DR loci showed significantly differing effects: HLA-B seemed to favour female births, while, in pregnancies subsequent to the first, HLA-DR seemed to favour male births. Both HLA-B and DR loci seemed to work through immunological mechanisms.

Original languageEnglish
Pages (from-to)155-165
Number of pages11
JournalHuman Heredity
Volume46
Issue number3
Publication statusPublished - May 1996

Keywords

  • Fertility
  • HLA sharing
  • HLA-DR
  • Human sex ratio
  • Mother-child histocompatibility

ASJC Scopus subject areas

  • Genetics(clinical)

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    Astolfi, P., Cuccia, M., Caruso, C., Favoino, B., Fazzari, M., Mantovani, V., Lulli, P., Illeni, M., & Martinetti, M. (1996). Sharing at the major histocompatibility complex affects the secondary sex ratio in differing ways. Human Heredity, 46(3), 155-165.