Controlled ovarian stimulation using a long gonadotropin-releasing hormone antagonist protocol: a proof of concept and feasibility study.

Background/aims: To evaluate the feasibility of a long protocol of controlled ovarian stimulation prior to in vitro fertilization (IVF) and embryo transfer with a gonadotropin-releasing hormone (GnRH) antagonist used for pituitary and ovarian suppression.

Methods: Thirty patients undergoing IVF/intracytoplasmic sperm injection were randomized into two groups. The control group (n = 16) received a standard flexible GnRH antagonist protocol.

BSKs are partially redundant positive regulators of brassinosteroid signaling in Arabidopsis.

Arabidopsis thaliana brassinosteroid signaling kinases (BSKs) constitute a receptor-like cytoplasmic kinase sub-family (RLCK-XII) with 12 members. Previous analysis demonstrated a positive role for BSK1 and BSK3 in the initial steps of brassinosteroid (BR) signal transduction. To investigate the function of BSKs in plant growth and BR signaling, we characterized T-DNA insertion lines for eight BSK genes (BSK1-BSK8) and multiple mutant combinations.

Zygote intrafallopian transfer among patients with repeated implantation failure.

Objective: To summarize the experience of a single center with laparoscopic zygote intrafallopian transfer (ZIFT) performed exclusively among patients with high-order repeated implantation failure (RIF) following in vitro fertilization-embryo transfer (IVF-ET).

Methods: A retrospective cohort study was performed at the Edith Wolfson Medical Center, a tertiary referral university hospital located in Holon, Israel. A group of 176 patients with 8.