Human embryos commonly form abnormal nuclei during development: a mechanism of DNA damage, embryonic aneuploidy, and developmental arrest.

Study Question: What is the prevalence and developmental significance of morphologic nuclear abnormalities in human preimplantation embryos?

Summary Answer: Nuclear abnormalities are commonly found in human IVF embryos and are associated with DNA damage, aneuploidy, and decreased developmental potential.

What Is Known Already: Early human embryonic development is complicated by genomic errors that occur after fertilization. The appearance of extra-nuclear DNA, which has been observed in IVF, may be a result of such errors.

Chemerin as a marker of body fat and insulin resistance in women with polycystic ovary syndrome.

Adipocytokines may alter normal metabolic function and play an important role in the pathophysiology of polycystic ovary syndrome (PCOS). We prospectively evaluated a cohort of obese and non-obese women with PCOS and non-PCOS controls for both novel (chemerin and omentin-1) and established (leptin and adiponectin) adipokines. Compared with age-matched controls, non-obese women with PCOS had decreased serum omentin-1 (191.

Preliminary evidence that cinnamon improves menstrual cyclicity in women with polycystic ovary syndrome: a randomized controlled trial.

Objective: To determine the effect of cinnamon on menstrual cyclicity and metabolic dysfunction in women with polycystic ovary syndrome (PCOS).

Study Design: In a prospective, placebo controlled, double-blinded randomized trial, 45 women with PCOS were randomized (1:1) to receive cinnamon supplements (1.5 g/d) or placebo for 6 months.

Successful pregnancy following assisted reproduction and transmyometrial embryo transfer in a patient with anatomical distortion of the cervical canal.

Abstract Presented is the case report of a patient noted to have gross distortion of the internal cervical canal during her attempt at embryo transfer following an in vitro fertilization with intracytoplasmic sperm injection (IVF-ICSI) procedure. Multiple attempts at cervical dilation were unsuccessful and the patient was ultimately treated by transmyometrial embryo transfer also known as the Towako method. She successfully achieved a singleton pregnancy and delivered at 41 weeks by primary cesarean section because of arrest of cervical dilation.

Human oocytes reprogram adult somatic nuclei of a type 1 diabetic to diploid pluripotent stem cells.

The transfer of somatic cell nuclei into oocytes can give rise to pluripotent stem cells that are consistently equivalent to embryonic stem cells, holding promise for autologous cell replacement therapy. Although methods to induce pluripotent stem cells from somatic cells by transcription factors are widely used in basic research, numerous differences between induced pluripotent stem cells and embryonic stem cells have been reported, potentially affecting their clinical use. Because of the therapeutic potential of diploid embryonic stem-cell lines derived from adult cells of diseased human subjects, we have systematically investigated the parameters affecting efficiency of blastocyst development and stem-cell derivation.

Does the addition of clomiphene citrate or letrazole to gonadotropin treatment enhance the oocyte yield in poor responders undergoing IVF?

Purpose: To evaluate the effect of adjunctive letrazole or clomiphene in IVF stimulation protocols.

Methods: A retrospective analysis of high dose GnRH antagonist IVF cycles (450-600 IU of gonadotropins) that have met poor responder criteria. Selected consecutive cycles in same patients differed solely in presence or absence of adjunctive clomiphene or letrazole.

Pregnancy after age 50: defining risks for mother and child.

Assisted reproductive technology using donor-egg in vitro fertilization (D-IVF) has enabled women 50 years and above to successfully achieve pregnancy. We examine the safety profile of these pregnancies through a large, single-center case series and retrospective cohort analysis in which all participants were carefully screened medically prior to conception. Consecutive women aged ≥ 50 years (n = 101) who achieved a viable pregnancy via D-IVF were identified and their perinatal outcomes were recorded.