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According to a study from the United States, "To determine whether the concentration of hyaluronan (HA) in follicular fluid predicts implantation success following embryo transfer. Follicular fluids from 170 IVF patients were tested by ELISA for HA concentration."
"The mean (standard error) HA concentration in follicular fluids was 158.0 (21.9) ng/ml from women whose embryos did not implant, 220.0 (21.3) ng/ml from women in which one embryo implanted and 239.3 (40.1) ng/ml from women with 2-3 implantations (implantation vs. no implantation p=.019). The HA level was unrelated to maternal age, number of oocytes harvested or fertilized or number of embryos transferred. Follicular fluids from women with an endocrine problem had a lower mean HA level (142.0 ng/ml) as compared to women undergoing IVF due to male factor infertility (257.3 ng/ml) (P=.05). HA in follicular fluid is decreased in women with unsuccessful implantation or with an endocrine disorder," wrote A. Babayan and colleagues, Cornell University (see also Embryo Transfer).
The researchers concluded: "A woman's level of HA production may influence the potential for implantation of her embryos."
Babayan ...