Sex-specific programming effects of parental obesity in pre-implantation embryonic development.
Int J Obes (Lond)
; 44(5): 1185-1190, 2020 05.
Article
em En
| MEDLINE
| ID: mdl-31776435
ABSTRACT
BACKGROUND:
Obesity is a global rising problem with epidemiological dimension. Obese parents can have programming effects on their offspring leading to obesity and associated diseases in later life. This constitutes a vicious circle. Epidemiological data and studies in rodents demonstrated differential programming effects in male and female offspring, but the timing of their developmental origin is not known.METHODS:
This study investigated if sex-specific programming effects of parental obesity can already be detected in the pre-implantation period. Diet-induced obese male or female mice were mated with normal-weight partners and blastocysts were recovered.RESULTS:
Gene expression profiling revealed sex-specific responses of the blastocyst transcriptome to maternal and paternal obesity. The changes in the transcriptome of male blastocysts were more pronounced than those of female blastocysts, with a stronger impact of paternal than of maternal obesity. The sperm of obese mice revealed an increased abundance of several miRNAs compared with lean mice.CONCLUSIONS:
Our study indicates that sex-specific programming effects of parental obesity already start in the pre-implantation period and reveals specific alterations of the sperm miRNA profile as mechanistic link to programming effects of paternal obesity.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Desenvolvimento Embrionário
/
Transcriptoma
/
Obesidade
Limite:
Animals
/
Pregnancy
Idioma:
En
Revista:
Int J Obes (Lond)
Assunto da revista:
METABOLISMO
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
Alemanha