1. Cole LA, Shahabi S, Oz UA, Rinne KM, Omrani A, Bahado-Singh RO, Mahoney MJ. Urinary screening tests for fetal Down syndrome: II. Hyperglycosylated hCG. Prenat Diagn 1999;19:351–9. 2. Kovalevskaya G, Birken S, Kakuma T, Ozaki N, Sauer M, Lindheim S, et al. Differential expression of human chorionic gonadotropin (hCG) glycosylation isoforms in failing and continuing pregnancies: preliminary ch...

We evaluated the effects of caponization on mRNA levels of gonadotropin-releasing hormone-I (GnRH-I), gonadotropin subunit and other hypothalamic and hypophyseal peptide genes in male chicken. Thirty roosters (25 d) with similar weight were equally divided into the experimental (capons) and control (sham-operated males) groups randomly. Caponization was performed at 28 days of age and birds wer...

Purpose. To improve success of in vitro fertilization (IVF), assisted reproductive technology (ART) experts addressed four questions. What is optimum oocytes number leading to highest live birth rate (LBR)? Are cohort size and embryo quality correlated? Does gonadotropin type affect oocyte yield? Should "freeze-all" policy be adopted in cycles with progesterone >1.5 ng/mL on day of human chorio...

Kisspeptins have emerged as potent elicitors of gonadotropin secretion and, therefore, putative targets for pharmacological intervention. In this context, desensitization of gonadotropin responses to continuous administration of kisspeptins has begun to be characterized, but information so far available is mostly restricted to LH responses in males, whereas the similar phenomenon in females, of...

OBJECTIVE To determine whether conversion of high-response gonadotropin/intrauterine insemination (IUI) cycles to "rescue" in vitro fertilization (IVF) yields a higher implantation and pregnancy rate as found in matched IVF controls. DESIGN A prospective study with a retrospective controlled section. SETTING Baskent University Department of Obstetrics and Gynecology. PATIENT(S) Thirty-two...

OBJECTIVES Our purpose was to elucidate the involvement of the tyrosine kinase pathway in gonadotropin-induced ovulation in the rat ovary. STUDY DESIGN We investigated the effect of a tyrosine kinase inhibitor, tyrphostin, on the rat ovulatory process in vivo and in vitro. METHODS In cultured rat granulosa cells, the effect of tyrphostin on LH-, dibutyryl cyclic AMP ((Bu)2cAMP)- or forskoli...

RATIONALE Psoas abscesses generally arise from a contiguous intra-abdominal or pelvic infectious process or hematogenous spreading of bacteria. The serum β-human chorionic gonadotropin has been used to detect normal or ectopic pregnancy. It also can be utilized in following up carcinomas. PATIENT CONCERNS Here, we reported a case of a 47-year-old woman who presented with a left psoas mass pre...

INDUCTION OF OVULATION IN THE HUMAN WITH HUMAN GONADOTROPINS.* By C. Lee Buxton and Walter Herrmann, Department of Obstetrics and Gynecology, Yale University School of Medicine. During the 33 years since human chorionic gonadotropin (hereafter to be designated as HCG) was shown to produce ovulation in small mammals, there have been numerous unsatisfactory attempts to stimulate human ovarian act...