The Impact of Mmu17 Non-Hsa21 Orthologous Genes in the Ts65Dn Mouse Model of Down Syndrome: The Gold Standard Refuted.

Background: Despite successful preclinical treatment studies to improve neurocognition in the Ts65Dn mouse model of Down syndrome, translation to humans has failed. This raises questions about the appropriateness of the Ts65Dn mouse as the gold standard. We used the novel Ts66Yah mouse that carries an extra chromosome and the identical segmental Mmu16 trisomy as Ts65Dn without the Mmu17 non-Hsa21 orthologous region.

Clarifying the relationship between total motile sperm counts and intrauterine insemination pregnancy rates.

Objective: To study the relationship between postwash total motile sperm count (TMSC) and intrauterine insemination (IUI) outcomes.

Design: Retrospective review SETTING: Large fertility clinic PATIENT(S): A total of 92,471 insemination cycles from 37,553 patients were included in this study.

Intervention(s): All stimulated clomiphene citrate, letrozole, and/or injectable gonadotropin IUI cycles performed at a single institution from 2002 through 2018 were reviewed.

Endometriosis does not impact live-birth rates in frozen embryo transfers of euploid blastocysts.

Objective: To determine whether subfertility in patients with endometriosis is due to impaired endometrial receptivity by comparing pregnancy and live-birth outcomes in women with endometriosis versus two control groups without suspected endometrial factors: noninfertile patients who underwent assisted reproduction to test embryos for a single-gene disorder and couples with isolated male factor infertility.

Design: Retrospective cohort.

Setting: Multicenter private practice.

Forty years of IVF.

This monograph, written by the pioneers of IVF and reproductive medicine, celebrates the history, achievements, and medical advancements made over the last 40 years in this rapidly growing field.

Diminished ovarian reserve as measured by means of baseline follicle-stimulating hormone and antral follicle count is not associated with pregnancy loss in younger in vitro fertilization patients.

Objective: To assess the relationship between diminished ovarian reserve and pregnancy outcomes in a large cohort of women achieving pregnancy through in vitro fertilization (IVF). We evaluated antral follicle count (AFC) and baseline FSH as a measure of ovarian reserve. Secondarily, we assessed whether diminished ovarian reserve was associated with aneuploidy among spontaneous abortions.

Management of Chronic Pelvic Pain.

The management of chronic pelvic pain poses a significant challenge to both physicians and patients. Patients should be evaluated for both gynecologic and nongynecologic conditions, and >1 source may be identified. Treatment involves medical as well as surgical options, and it is important to set realistic goals with patients.

A case of recurrent hyperreactio luteinalis in three spontaneous pregnancies.

Hyperreactio luteinalis is a rare condition in pregnancy characterized by enlarged ovaries with multiple theca luteal cysts, and recurrence of disease has seldom been documented in the literature. This is a case report of a woman who developed recurrent hyperreactio luteinalis with three spontaneous pregnancies. Endocrine evaluation was performed and revealed hyperandrogenism.