Early and late paternal contribution to cell division of embryos in a time-lapse imaging incubation system.
Andrologia
; 53(11): e14211, 2021 Dec.
Article
en En
| MEDLINE
| ID: mdl-34437729
ABSTRACT
The objective of this study was to investigate the impact of male age, semen quality and days of ejaculatory abstinence on embryo morphokinetics. A total of 1,220 zygotes obtained from 139 couples in a private in vitro fertilisation centre were analysed. The timing of specific events from the point of insemination, such as timings to pronuclei appearance and fading, to two, three, four, five, six, seven and eight cells and to blastulation were recorded. Multivariate linear regression analysis was used to evaluate the influence of paternal factors on embryo morphokinetic events. Paternal age was positively correlated with delayed cell cleavage and blastulation, and negatively associated with implantation rate, and clinical pregnancy and live-birth chances. The ejaculatory abstinence was inversely correlated with the implantation rate. Inverse relationships were observed between semen parameters (sperm count, progressive sperm motility, total motile sperm count and morphology) and the timing of specific events during embryo development. Sperm morphology was also positively associated with implantation rate and pregnancy and live-birth chances. Increased paternal age and ejaculatory abstinence, and poor semen quality correlate with delayed cell cleavage and blastulation and negatively impact intracytoplasmic sperm injection outcomes.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Motilidad Espermática
/
Análisis de Semen
Tipo de estudio:
Observational_studies
/
Risk_factors_studies
Límite:
Female
/
Humans
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Male
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Pregnancy
Idioma:
En
Revista:
Andrologia
Año:
2021
Tipo del documento:
Article
País de afiliación:
Brasil