Evaluation of oxygen consumption in human vitrified and warmed pre-antral follicles after prolonged low temperatures.

Purpose: The purpose of this study was to evaluate the effect of transportation at prolonged low temperatures on the survival of pre-antral follicles.

Methods: Ovarian tissue was removed from six women with gender identity disorder. Tissues were stored in an icebox at 4 °C for 6 or 18 h prior to vitrification.

A unique preliminary study on placental apoptosis in mice with passive immunization of anti-phosphatidylethanolamine antibodies and anti-factor XII antibodies.

Problem: Antiphospholipid antibodies have been investigated both in humans and in animal models. In contrast, there are fewer reports describing anti-phosphatidylethanolamine (aPE) antibodies in humans, and there are no reports of animal studies with aPE till date. Clinically, FXII deficiency or anti-FXII antibodies are sometimes associated with aPE in patients with recurrent pregnancy loss.

Speckle reduction mechanism in laser rear projection displays using a small moving diffuser.

Recently, a practical method of speckle reduction in laser rear projection displays that uses an optical system with a small moving diffuser has attracted much attention. In this paper, a model of the speckle generation and reduction mechanism in the system is presented. We investigated the speckle, focusing on the physical aspects of its generation, rather than treating it statistically.

Relevance of the site of assisted hatching in thawed human blastocysts: a preliminary report.

Preliminary data from a prospective randomized study of assisted hatching (AH) of thawed human blastocysts demonstrated that the rate of complete hatching was significantly higher for AH performed near the inner cell mass (ICM) than for AH at the side opposite to the ICM. This suggests the existence of polarity in the hatching process in human blastocysts, which requires further evaluation.

GnRH antagonist improved blastocyst quality and pregnancy outcome after multiple failures of IVF/ICSI-ET with a GnRH agonist protocol.

Background: To determine the efficacy of a gonadotrophin-releasing hormone (GnRH) antagonist, cetrorelix, in improving the quality of embryos and pregnancy outcome, we performed a study in patients with a history of multiple failures of in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) cycles with a GnRH agonist (GnRHa) long protocol.

Methods: Forty women with no live births after conventional IVF or ICSI embryo transfer (ET) and subsequent blastocyst transfer (BT) with a GnRHa long protocol entered this study. The treatment protocol consisted of a daily dose of clomiphene citrate 100 mg for 5 days and gonadotrophin injections daily from cycle day 4 onward.