Sudden infant death syndrome and activating GNAS1 gene mutations.

GNAS1 gene mutations cause the McCune-Albright syndrome. Some patients may develop unusual, severe, nonendocrine manifestations that may lead to death. We postulate that some cases of sudden infant death syndrome (SIDS) might be caused by GNAS1 gene mutations affecting vital organs.

Differential expression of endometrial integrins and progesterone receptor during the window of implantation in normo-ovulatory women treated with clomiphene citrate.

Objective: To assess the effect of clomiphene citrate (CC) on endometrial epithelial integrins and P receptors (PR) during the window of implantation.

Design: Controlled, prospective, clinical study.

Setting: Teaching hospital and university research laboratory.