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https://www.readbyqxmd.com/read/28933569/day-two-post-retrieval-1500-iui-hcg-bolus-progesterone-free-luteal-support-post-gnrh-agonist-trigger-a-proof-of-concept-study
#1
Sharon Vanetik, Linoy Segal, Tatiana Breizman, Shahar Kol
Small dose of hCG (1500 IU) on the day of oocyte retrieval, followed by daily progesterone administration, is currently the preferred way to secure adequate luteal support following GnRH agonist trigger. In the current proof-of-concept study, we explored the possibility that a bolus of 1500 IU hCG, given two days after oocyte retrieval, may be sufficient to sustain adequate luteal support without additional progesterone treatment. From February 2015 to August 2016, we obtained 44 pregnancies following GnRHa trigger followed by day 2 hCG (1500 IU) support only (study group)...
September 21, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28925272/-fertility-preserving-methods-in-women-with-breast-cancer-before-gonadotoxic-therapy
#2
N Halászová, I Crha, M Huser, V Weinberger, J Žáková, M Ješeta, E Lousová, E Filipinská, P Ventruba
OBJECTIVE: To present current options and own experiences with ovarian stimulation in young women with breast cancer before gonadotoxic therapy. DESIGN: Review article with own experiencies. METHODS: Literary search, analysis of own experiences with complex therapy in women with breast cancer planning pregnancy, definitions of stimulating protocols, using methods of assisted reproduction. SETTING: Department of Obstetrics and Gynecology, Faculty of Medicine, Masaryk University and University Hospital Brno...
2017: Ceská Gynekologie
https://www.readbyqxmd.com/read/28916209/towards-new-strategies-to-manage-livestock-reproduction-using-kisspeptin-analogs
#3
M Beltramo, C Decourt
The discovery of the hypothalamic neuropeptide kisspeptin and its receptor (KISS1R) have dramatically improved our knowledge about the central mechanisms controlling reproduction. Kisspeptin neurons could be considered the hub where internal and external information controlling reproduction converge. The information is here elaborated and the command dispatched to GnRH neurons, the final output of the brain system controlling reproduction. Several studies have shown that in mammals administration of kisspeptin could finely modulate many aspects of reproduction from puberty to ovulation...
September 12, 2017: Theriogenology
https://www.readbyqxmd.com/read/28904504/role-of-serpine-gene-polymorphism-in-recurrent-implantation-failure-and-preeclampsia
#4
Nidhi Sharma, Jayashree K Srinivasan, Margeret Harriet Priya, Venkatachalam Sibiya
This is a rare case of serpine gene polymorphism causing thrombophilia and recurrent implantation failure following intrauterine insemination. SERPINE1 gene encodes plasminogen activator inhibitor type 1 and inhibits fibrinolysis, or clot dissolution. The 4G variant results in increased expression of SERPINE1 and consequently higher inhibition of fibrinolysis, thus leading to thrombophilia. The patient had unexplained primary infertility for 9 years. Ovulation induction was done with gonadotropin releasing hormone (GnRH) agonist long protocol...
April 2017: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/28903472/gnrh-antagonist-versus-long-agonist-protocols-in-ivf-a-systematic-review-and-meta-analysis-accounting-for-patient-type
#5
C B Lambalk, F R Banga, J A Huirne, M Toftager, A Pinborg, R Homburg, F van der Veen, M van Wely
BACKGROUND: Most reviews of IVF ovarian stimulation protocols have insufficiently accounted for various patient populations, such as ovulatory women, women with polycystic ovary syndrome (PCOS) or women with poor ovarian response, and have included studies in which the agonist or antagonist was not the only variable between the compared study arms. OBJECTIVE AND RATIONALE: The aim of the current study was to compare GnRH antagonist protocols versus standard long agonist protocols in couples undergoing IVF or ICSI, while accounting for various patient populations and treatment schedules...
September 1, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28890430/how-to-personalize-ovarian-stimulation-in-clinical-practice
#6
Giovanna Sighinolfi, Valentina Grisendi, Antonio La Marca
Controlled ovarian stimulation (COS) in in vitro fertilization (IVF) cycles is the starting point from which couple's prognosis depends. Individualization in follicle-stimulating hormone (FSH) starting dose and protocol used is based on ovarian response prediction, which depends on ovarian reserve. Anti-Müllerian hormone levels and the antral follicle count are considered the most accurate and reliable markers of ovarian reserve. A literature search was performed for studies that addressed the ability of ovarian reserve markers to predict poor and high ovarian response in assisted reproductive technology cycles...
September 1, 2017: Journal of the Turkish German Gynecological Association
https://www.readbyqxmd.com/read/28879481/association-between-the-number-of-oocytes-retrieved-and-cumulative-live-birth-rate-in-women-aged-35-40%C3%A2-years-undergoing-long-gnrh-agonist-ivf-icsi-cycles
#7
Jianjun Zhou, Bin Wang, Yali Hu, Haixiang Sun
PURPOSE: To study the association between the numbers of oocytes retrieved and the cumulative live birth rates (LBR) in women aged 35-40 years undergoing long GnRH agonist IVF/ICSI cycles. METHODS: A total of 931 women aged 35-40 years who underwent their first cycle of IVF/ICSI treatment between January 2010 and December 2013 at Nanjing Drum Tower Hospital were identified and reviewed. The main endpoint of this study was the cumulative LBR after one complete oocyte retrieval, which included fresh and all subsequent frozen-thaw embryo transfer cycles...
September 6, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28865552/gonadotropin-releasing-hormone-agonist-trigger-increases-the-number-of-oocytes-and-embryos-available-for-cryopreservation-in-cancer-patients-undergoing-ovarian-stimulation-for-fertility-preservation
#8
Nigel Pereira, Amelia G Kelly, Logan D Stone, Justine D Witzke, Jovana P Lekovich, Rony T Elias, Glenn L Schattman, Zev Rosenwaks
OBJECTIVE: To compare the oocyte and embryo yield associated with GnRH-agonist triggers vs. hCG triggers in cancer patients undergoing controlled ovarian stimulation (COS) for fertilization preservation. DESIGN: Retrospective cohort study. SETTING: Academic center. PATIENT(S): Cancer patients undergoing COS with letrozole and gonadotropins or gonadotropin-only protocols for oocyte or embryo cryopreservation. INTERVENTION(S): Gonadotropin-releasing hormone agonist or hCG trigger...
September 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28865548/effects-of-adenomyosis-on-in%C3%A2-vitro-fertilization-treatment-outcomes-a-meta-analysis
#9
Grace Younes, Togas Tulandi
OBJECTIVE: To systematically review and summarize the existing evidence related to the effect of adenomyosis on fertility and on in vitro fertilization (IVF) clinical outcomes, and to explore the effects of surgical or medical treatments. DESIGN: Meta-analysis. SETTING: Not applicable. PATIENT(S): An electronic-based search was performed with the use of the following databases: Pubmed, Embase, Ovid Medline, Cochrane Central Register of Controlled Trials, and Google Scholar, identifying all related articles up to November 2016...
September 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28863964/design-and-biological-effects-of-a-vaginally-administered-gel-containing-the-gnrh-agonist-triptorelin-for-synchronizing-ovulation-in-swine
#10
R V Knox, K R Stewart, W L Flowers, M E Swanson, S K Webel, R R Kraeling
A novel gel formulation was selected for intravaginal delivery of the GnRH agonist (triptorelin) for synchronizing ovulation in pigs. Studies with gilt models were used to assess LH response profiles. The lowest dose of triptorelin that induced the most gilts to show an LH surge was 100 μg in 1.2% methylcellulose gel. This formulation had a similar effect in weaned sows while also advancing ovulation. The timing of administration was evaluated in sows after weaning. Administration at 96 h induced more sows to ovulate (58%) by 48 h compared to treatment at estrus (45%) or for controls (34%), but the desired level of ovulation synchrony was not achieved...
August 24, 2017: Theriogenology
https://www.readbyqxmd.com/read/28859282/a-neurokinin-3-receptor-selective-agonist-accelerates-pulsatile-luteinizing-hormone-secretion-in-lactating-cattle
#11
Sho Nakamura, Yoshihiro Wakabayashi, Takashi Yamamura, Satoshi Ohkura, Shuichi Matsuyama
Pulsatile gonadotropin-releasing hormone (GnRH) secretion, which is indispensable for follicular development, is suppressed in lactating dairy and beef cattle. Neurokinin B (NKB) neurons in the arcuate nucleus of the hypothalamus are considered to play an essential role in generating the pulsatile mode of GnRH/luteinizing hormone (LH) secretion. The present study aimed to clarify the role of NKB-neurokinin 3 receptor (NK3R) signaling in the pulsatile pattern of GnRH/gonadotropin secretion in postpartum lactating cattle...
July 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28856862/gonadotrophin-releasing-hormone-agonist-combined-with-high-intensity-focused-ultrasound-ablation-for-adenomyosis-a-clinical-study
#12
Y Guo, H Duan, J Cheng, Y Zhang
OBJECTIVES: This study was to investigate the clinical efficacy of a gonadotrophin-releasing hormone agonist (GnRH-a) combined with high-intensity focused ultrasound (HIFU) ablation treatment for adenomyosis. DESIGN: A non-randomized prospective study. SETTING: Gynaecological Minimally Invasive Centre in a single hospital. POPULATION: Patients with adenomyosis. METHODS: Seventy-nine patients with adenomyosis were enrolled, including 55 patients in the control group treated with only HIFU and 24 patients in the study group treated with GnRH-a combined with HIFU...
August 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28854727/effect-of-randomized-serum-progesterone-concentration-on-secretory-endometrial-histologic-development-and-gene-expression
#13
Steven L Young, Ricardo F Savaris, Bruce A Lessey, Andrew M Sharkey, Ursula Balthazar, Richard J Zaino, Robert A Sherwin, Marc A Fritz
STUDY QUESTION: What doses of secretory phase progesterone (P) in women are associated with altered endometrial structure and/or function? SUMMARY ANSWER: Consistently delayed histological maturation was seen at the lowest tested daily P dose (2.5 mg), whereas consistently altered functional response, as reflected by microarray analysis of gene expression was seen at both the 5 and 2.5 mg doses. WHAT IS KNOWN ALREADY: Progesterone is absolutely required for normal embryo implantation and pregnancy survival...
September 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28837025/comparison-of-two-different-dosage-of-gnrh-agonist-as-ovulation-trigger-in-oocyte-donors-a-randomized-controled-trial
#14
Sonia Morales Zarcos, Pamela Valdivieso Mejía, Carla Donado Stefani, Pascual Sánchez Martin, Fernando Sánchez Martin
OBJECTIVE: To compare the results obtained with two different GnRH agonist dosages: 0.3mg versus 0.4mg to trigger ovulation in oocyte donor cycles. METHODS: Experimental controlled randomized trial including 40 patients from a private practice center. The patients were randomized into two groups. Group A received a single dose of Triptorelin 0.3mg (Decapeptyl®) 36hours before pick-up. Group B patients received Triptorelin 0.4mg (Decapeptyl®) before pick-up to final oocyte maturation...
September 1, 2017: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/28831696/brca1-mutation-carriers-have-a-lower-number-of-mature-oocytes-after-ovarian-stimulation-for-ivf-pgd
#15
I A P Derks-Smeets, T C van Tilborg, A van Montfoort, L Smits, H L Torrance, M Meijer-Hoogeveen, F Broekmans, J C F M Dreesen, A D C Paulussen, V C G Tjan-Heijnen, I Homminga, M M J van den Berg, M G E M Ausems, M de Rycke, C E M de Die-Smulders, W Verpoest, R van Golde
PURPOSE: The aim of this study was to determine whether BRCA1/2 mutation carriers produce fewer mature oocytes after ovarian stimulation for in vitro fertilization (IVF) with preimplantation genetic diagnosis (PGD), in comparison to a PGD control group. METHODS: A retrospective, international, multicenter cohort study was performed on data of first PGD cycles performed between January 2006 and September 2015. Data were extracted from medical files. The study was performed in one PGD center and three affiliated IVF centers in the Netherlands and one PGD center in Belgium...
August 22, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28830648/feasibility-of-corifollitropin-alfa-gnrh-antagonist-protocol-combined-with-gnrh-agonist-triggering-and-freeze-all-strategy-in-polycystic-ovary-syndrome-patients
#16
Jiann-Loung Hwang, Shee-Uan Chen, Hen-Ju Chen, Hsin-Fu Chen, Yu-Shih Yang, Chin-Hao Chang, Kok-Min Seow, Chii-Ruey Tzeng, Yu-Hung Lin
BACKGROUND/PURPOSE: The long-acting corifollitropin alfa is comparable to FSH in terms of pregnancy outcomes in normal responders and poor responders. Corifollitropin alfa has never been studied in polycystic ovary syndrome (PCOS) patients because of concerns of excessive ovarian stimulation and ovarian hyperstimulation syndrome (OHSS). The purpose of the study was to evaluate if corifollitropin alfa can be used in PCOS patients. METHODS: Forty PCOS patients who were going to undergo in vitro fertilization were enrolled in this study...
August 19, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28820403/high-levels-of-soluble-vascular-endothelial-growth-factor-receptor-1-sflt1-and-low-levels-of-vascular-endothelial-growth-factor-in-follicular-fluid-on-the-day-of-oocyte-retrieval-correlate-with-ovarian-hyperstimulation-syndrom-regardless-of-the-stimulation
#17
A J Jakimiuk, M A Nowicka, M Zagozda, K Koziol, P Lewandowski, T Issat
The aim of the study was to assess the predictive value of vascular endothelial growth factor (VEGF), its soluble receptor - sVEGF-R1/sFlt1 and endocrine gland-derived vascular endothelial growth factor (EG-VEGF) concentrations in serum and follicular fluid (FF) for ovarian hyperstimulation syndrome (OHSS) in women undergoing controlled ovarian hyperstimulation (COH) protocols. Patients have been divided into 3 groups: control group on natural cycle, patients stimulated with GnRH agonist and patients stimulated with GnRH antagonist...
June 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28819533/catamenial-pneumothorax-revealing-diaphragmatic-endometriosis-a-case-report-and-revue-of-literature
#18
REVIEW
Sana Aissa, Wafa Benzarti, Faouzi Alimi, Imen Gargouri, Halima Ben Salem, Amène Aissa, Khadija Fathallah, Atef Ben Abdelkade, Rafika Alouini, Abdelhamid Garrouche, Abdelaziz Hayoun, Ahmed Abdelghani, Mohamed Benzarti
Catamenial pneumothorax (CP) is a rare entity of spontaneous, recurring pneumothorax in women. We aim to discuss the etiology, clinical course, and surgical treatment of a 42-year-old woman with CP. This patient had a right-sided spontaneous pneumothoraces occurred one week after menses. She had under-gone video-assisted thoracoscopic surgery (VATS) because of a persistent air leak under chest tube. VATS revealed multiple diaphragmatic fenestrations with an upper right nodule. Defects were removed and a large part of the diaphragm was resected...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28796038/clomiphene-citrate-is-associated-with-favorable-cycle-characteristics-but-impaired-outcomes-of-obese-women-with-polycystic-ovarian-syndrome-undergoing-ovarian-stimulation-for-in-vitro-fertilization
#19
Shutian Jiang, Yanping Kuang
The aim of this study was to explore the effect of clomiphene citrate (CC) on the cycle characteristics and outcomes of obese women with polycystic ovarian syndrome (PCOS) undergoing ovarian stimulation for in vitro fertilization (IVF).This is a retrospective cohort study, and it was conducted at the tertiary-care academic medical center.This study included 174 obese PCOS patients undergoing IVF.In the study group (n = 90), CC and human menopausal gonadotropin (HMG) were administered simultaneously beginning on cycle day 3, while in control group (n = 84) HMG was used only...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28763726/effect-of-different-hormonal-combinations-on-follicular-wave-emergence-and-superovulatory-response-in-sheep
#20
Joanna Maria Gonçalves Souza-Fabjan, Rômulo Mendonça da Rosa, Mário Felipe Alvarez Balaro, Pedro Henrique Nicolau Pinto, Gustavo Bervian Dos Santos, Eduardo Kenji Nunes Arashiro, Jeferson Ferreira da Fonseca, Rodolfo Ungerfeld, Felipe Zandonadi Brandão
The aim of the present study was to compare hormonal treatments to induce and synchronize follicular wave emergence to improve the results of superovulatory (SOV) treatments in ewes. In Experiment 1 (n = 66), ewes were treated with a progesterone intravaginal implant plus a PGF2α analogue (group GP4), or with the same treatment plus estradiol benzoate (GP4+EB), a GnRH agonist (GP4+GnRH), or both, estradiol benzoate and a GnRH agonist (GP4+EB+GnRH) in a 2 × 2 factorial arrangement. Follicular wave emergence was determined by ultrasound...
November 2017: Theriogenology
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