نتایج جستجو برای: ovulation triggering

تعداد نتایج: 30956  

2014
Jigal Haas Libby Ophir Eran Barzilay Gil M. Yerushalmi Yuval Yung Alon Kedem Ettie Maman Ariel Hourvitz

OBJECTIVE To investigate the mRNA expression of genes related to steroidogenesis and OHSS in granulosa cells (GCs) of patients triggered with GnRH agonist compared to patients triggered with hCG. DESIGN Mural GCs were obtained at the time of oocyte retrieval and gene expression was analyzed using quantitative real time RT-PCR. SETTINGS Single center, case control study. PATIENT(S) 24 wome...

Journal: :Reproduction, nutrition, developpement 1983
M A Driancourt M R Blanc J C Mariana

This paper reports the effects of X-irradiation on ovulation rate, cyclicity and progesterone and FSH levels in Ile-de-France ewes (4 control and 16 irradiated) after they were treated during the breeding season. The doses used (800 and 2 400 R) destroyed 50% of all size classes of the follicular population. Ovulation occurred in 87% of the treated ewes (ovulation rate = 1) when they were irrad...

2012
Ariadne Daniel Shereen Ezzat Ellen Greenblatt

Objective. To report the prestimulation use of adjuvant GH for gonadotropin ovulation induction in a woman with hypopituitarism and GH deficiency who previously failed to respond. Design, Patients, and Measurements. A 31-year-old nulliparous woman presented with hypopituitarism and GH deficiency after failing ovulation induction with high dose gonadotropins. A trial of GH was undertaken for 5 m...

Journal: :Journal of animal science 2001
J J Ford D R Zimmerman T H Wise K A Leymaster R K Christenson

Plasma follicle-stimulating hormone (FSH) was evaluated in gilts from two studies in which ovulation rate was increased through direct selection for number of corpora lutea (CL) to determine whether selection for ovulation rate affected FSH secretion during prepubertal development. In the first study, 76 control and 110 selected gilts of University of Nebraska gene pool lines were bled twice du...

Journal: :Current medical research and opinion 2012
Michael Zinaman Sarah Johnson Jayne Ellis William Ledger

BACKGROUND The likelihood of conception is increased if intercourse is timed to coincide with the fertile period (5 days up to ovulation). However, to be effective, this requires good awareness of the day of ovulation. The aim of this study was to examine the accuracy of women's perceived ovulation day, compared with actual fertile days, in a cohort of women trying to conceive. MAIN OUTCOME M...

Journal: :Animal reproduction science 2000
A M Mwanza P Englund A Pettersson S Einarsson

A method for monitoring oviductal isthmic motility in sows incorporating a computer programme (Polyview) was developed. This method was found to be reliable and easy for recording and analysing data. Isthmic motility patterns were monitored from 11 h prior to and up to 36 h after ovulation in 13 unrestrained multiparous sows during their second oestrus after weaning. The amplitudes and frequenc...

Journal: :Endocrinologia japonica 1973
J Sawamoto S Sasamoto

A single injection of PMS induces ovulation in immature rats on the third day morning after the treatment. The second estrus occurred 9 days after the first ovulation. Follicles of the succeeding cycle developed the capacity to ovulate 3 days after the first ovulation in 3 out of 5 rats, but could not be maintained in an ovulable state during the next 24 hr. When supplementary PMS was given jus...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2011
Naoko Inoue Karin Sasagawa Kotaro Ikai Yuki Sasaki Junko Tomikawa Shinya Oishi Nobutaka Fujii Yoshihisa Uenoyama Yasushige Ohmori Naoyuki Yamamoto Eiichi Hondo Kei-ichiro Maeda Hiroko Tsukamura

The present study investigated whether kisspeptin-G protein-coupled receptor 54 (GPR54) signaling plays a role in mediating mating-induced ovulation in the musk shrew (Suncus murinus), a reflex ovulator. For this purpose, we cloned suncus Kiss1 and Gpr54 cDNA from the hypothalamus and found that suncus kisspeptin (sKp) consists of 29 amino acid residues (sKp-29). Injection of exogenous sKp-29 m...

Journal: :The Journal of reproduction and development 2005
PeiXin Yang Mohamed S Medan Koji Y Arai Gen Watanabe Kazuyoshi Taya

The present study was undertaken to determine changes in circulating levels of immunoreactive (ir)-inhibin, FSH, LH, estradiol-17beta, progesterone, and testosterone during the ovulatory cycle of Shao ducks. Serial blood samples were taken from two groups of laying ducks for measurement of ir-inhibin, gonadotropins, and steroid hormones at 2 h intervals for 24 h. Plasma concentrations of ir-inh...

Journal: :Reproduction, fertility, and development 2012
C M Kershaw-Young X Druart J Vaughan W M C Maxwell

Ovulation in camelids is induced by an unidentified protein in the seminal plasma of the male termed 'ovulation-inducing factor'. This protein has been reported to be a 14-kDa protein under reducing conditions, which, when purified from seminal plasma, induces ovulation in llamas. The identification of this protein and investigation of its potential to induce ovulation in camelids may aid the d...

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