Endometrial NK Cell Subpopulations CD16−CD56Brightand CD16−CD56Dimin Women with Recurrent Implantation Failure

I-24: Recurrent Implantation Failure

Recurrent implantation failure (RIF) has many definitions, but usually authors consider RIF, the failure to achieve a pregnancy fallowing 2-6 IVF cycles in which more than 10 high grade embryos were transferred to the uterus. There are a lot of causes for RIF but two main causes of that are related to embryo and endometrium. Chromosomal abnormalities, zona hardening and problems in culture medi...

Disturbed endometrial NF-κB expression in women with recurrent implantation failure.

OBJECTIVE This study was planned to investigate whether expression levels of endometrial NF-κB1 and NFκB p65 changes in women with recurrent implantation failure (RIF). PATIENTS AND METHODS The study group consists of 30 RIF patients having at least three previous failed IVF cycles. The control group comprises of 30 patients having one or no previous failed attempt. Endometrial samples were o...

Increase of CD69, CD161 and CD94 on NK Cells in Women with Recurrent Spontaneous Abortion and in Vitro Fertilization Failure

Background: Recurrent spontaneous abortion (RSA) and in vitro fertilization (IVF) failure with unknown causes are the controversial issues that are probably related to the immune system. Objective: To compare circulating NK cells expressing activation and inhibition surface markers between patients with RSA and IVF failure with those of healthy multiparous and successful IVF control women, resp...

Onm-8: Recurrent Implantation Failure in IVF/ICSI Cycle

The success of assisted reproduction, although gradually increasing over the years, is still less than satisfactory. Many couples have benefited from this treatment; many have also been left frustrated following multiple failed attempts (Bulent Urman et al. 2005). Repeated implantation failure (RIF), defined as three or more failed IVF attempts or failure of IVF after cumula- Abstracts of the 5...

Recurrent Implantation Failure Is More Frequently Seen in Female Patients with Poor Prognosis