Increased ammonium in culture medium reduces the development of human embryos to the blastocyst stage.
Fertil Steril
; 85(2): 526-8, 2006 Feb.
Article
em En
| MEDLINE
| ID: mdl-16595249
ABSTRACT
The objective of this prospective study was to evaluate the effect of ammonium accumulated in sequential media and determined by enzymatic spectrophotometric method on the blastocyst development in 281 human embryos from 100 stimulated and natural in vitro fertilization (IVF) cycles. Ammonium concentration was increased in 62% of cycles and was correlated negatively with the blastocyst development after classical IVF, but not after intracytoplasmic sperm injection (ICSI).
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Base de dados:
MEDLINE
Assunto principal:
Blastocisto
/
Fertilização in vitro
/
Meios de Cultura
/
Embrião de Mamíferos
/
Compostos de Amônio Quaternário
Tipo de estudo:
Observational_studies
Limite:
Female
/
Humans
/
Male
Idioma:
En
Ano de publicação:
2006
Tipo de documento:
Article