The phrase
"embryo quality" refers to the health and development potential of an early-stage organism in the womb, before it becomes a fetus or baby. It is used to assess whether the embryo is of good or poor quality, which may affect the chances of a successful pregnancy.
Full definition
In patients younger than 36 years, only one embryo can be transferred in the first cycle, regardless
of embryo quality.
CONCLUSIONS: The common polymorphisms in MTHFR are not associated
with embryo quality or with short - term pregnancy outcomes.
When New Scientist contacted OvaScience for a response, they said: «The evidence is based on the mother's medical history, including a prior IVF cycle failure which showed very
poor embryo quality, as well as her diagnoses.
Results showed that the intake of saturated fat was inversely related to the number of mature oocytes retrieved, while polyunsaturated fat consumption was inversely associated with
early embryo quality.
Cheraghi E, Mehranjani MS, Shariatzadeh MA, Esfahani MH, Ebrahimi Z.N - Acetylcysteine improves oocyte and
embryo quality in polycystic ovary syndrome patients undergoing intracytoplasmic sperm injection: an alternative to metformin.
«However, there is the potential for one more major breakthrough for this technology: By developing better, non-invasive, objective predictors
of embryo quality, such as it appears to be the case with the Eeva system, we will be able to transfer fewer embryos into the womb, not only leading to higher viable pregnancy rates, but also minimizing the chances for the establishment of high risk multiple pregnancies such as twins and triplets.
RESULTS: The C677T and A1298C variants, either alone or in combination, did not associate
with embryo quality or short - term pregnancy outcome.
Analyses were used to assess whether these polymorphisms are associated with
embryo quality or with ongoing pregnancy or miscarriage rates.
They found that some sperm DNA methylation regions were also associated with poor blastocyst stage of
embryo quality as defined by the IVF clinic's standards related to embryo quality before transfer into the uterus of the female partner to establish a pregnancy, Pilsner says.
In the end, this may prove to be the most important contribution from the development of methods for the non-invasive evaluation of
embryo quality.»
NAC was also shown to improve oocyte and
embryo quality in Iranian women undergoing intracytoplasmic sperm injection.
Elevated homocysteine is associated with increased risk for cardiovascular disease and miscarriage, and in one study was associated with poorer egg and
embryo quality in women with PCOS undergoing IVF.
Homocysteine concentrations in follicular fluid are associated with poor oocyte and
embryo qualities in polycystic ovary syndrome patients undergoing assisted reproduction.
Preclinical assessments included oocyte development, fertilisation,
embryo quality and cleavage rate, while clinical outcomes (pregnancy, live birth) were recorded in all women who had embryo transfer.
Polyunsaturated fat consumption was found inversely related to
embryo quality.
Myo - inositol and melatonin have shown to enhance, synergistically, oocyte and
embryo quality and may even help improve IVF outcomes in women with PCOS by offering protection against cell damage from oxidative stress.
With IVF, doctors rely on healthy cell divisions to rate
embryo quality, so they know which embryo to transfer.