Paternal age impairs in vitro embryo and in vivo fetal development in murine

Author:

Stábile Larissa Araújo,Mendes Camilla Mota,Goissis Marcelo Demarchi,Sousa Raphaela Gabrielle Brito,Nichi Marcílio,Visintin José Antônio,Hamilton Thais Rose dos Santos,Assumpção Mayra Elena Ortiz D’ Ávila

Abstract

AbstractThe association between advanced paternal age and impaired reproductive outcomes is still controversial. Several studies relate decrease in semen quality, impaired embryo/fetal development and offspring health to increased paternal age. However, some retrospective studies observed no alterations on both seminal status and reproductive outcomes in older men. Such inconsistency may be due to the influence of intrinsic and external factors, such as genetics, race, diet, social class, lifestyle and obvious ethical issues that may bias the assessment of reproductive status in humans. The use of the murine model enables prospective study and owes the establishment of homogeneous and controlled groups. This study aimed to evaluate the effect of paternal age on in vitro embryo development at 4.5 day post conception and on in vivo fetal development at 16 days of gestation. Murine females (2–4 months of age) were mated with young (4–6 months of age) or senile (18–24 months of age) males. We observed decreased in vitro cleavage, blastocyst, and embryo development rates; lighter and shorter fetuses in the senile compared to the young group. This study indicated that advanced paternal age negatively impacts subsequent embryo and fetal development.

Publisher

Springer Science and Business Media LLC

Subject

Multidisciplinary

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