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https://www.readbyqxmd.com/read/28343907/-intra-uterine-insemination-at-either-24%C3%A2-or-48hours-after-ovulation-induction-pregnancy-and-birth-rates
#1
L Haller, F Severac, C Rongieres, J Ohl, K Bettahar, I Lichtblau, O Pirello
OBJECTIVE: Comparing rates of pregnancy and childbirth between IUI at either 24 or 48hours after injection of HCG. METHODS: This is a single-center retrospective study of couples who underwent intrauterine insemination between January 2013 and December 2014 at Medical-Surgical Obstetrical Centre of Schiltigheim. Stimulation of ovulation was done by FSH or HMG, and ovulation induction by 250μg of recombinant HCG. The insemination was performed after 2 days (group D2) or the day after (group D1)...
March 24, 2017: Gynecol Obstet Fertil Senol
https://www.readbyqxmd.com/read/28343757/clinical-utility-of-newly-developed-highly-purified-human-menopausal-gonadotrophins-a-randomized-controlled-trial
#2
Hwa Seon Koo, Hwang Kwon, Doo Seok Choi, Song Han, Jung Youn Seo, Kwang Moon Yang
The aim of this study was to evaluate the safety and efficacy of IVF-M HP, a newly developed highly purified human menopausal gonadotrophin preparation, for ovarian stimulation in women with infertility undergoing IVF, intracytoplasmic sperm injection (IVF-ICSI) and embryo transfer using a GnRH antagonist protocol. This was a multicentre, randomized, active-controlled, parallel design, open-label, non-inferiority clinical study. Of the 112 patients randomized for treatment using the GnRH antagonist protocol, 111 were treated...
March 1, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28342393/embryo-transfer-day-does-not-affect-the-initial-maternal-serum-%C3%AE-hcg-levels-a-retrospective-cohort-study
#3
Mona Dahiya, Karishma Rupani, Su Ling Yu, Stephanie M C Fook-Chong, Diana Chia Siew Fui, Hemashree Rajesh
The aim of this study is to compare the serum β-hCG values post transfer of a cleavage stage embryo versus a blastocyst stage embryo at equal time intervals post oocyte retrieval (OR) in clinically pregnant patients, and to ascertain a β-hCG value to predict pregnancy outcomes. This is a retrospective cohort study of 560 women with clinical pregnancy who underwent an embryo transfer performed at either the cleavage stage or the blastocyst stage of embryo development between January 2003 and June 2014 at the Center for Assisted Reproduction (CARE), Singapore General Hospital...
March 18, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28340932/predicting-first-trimester-pregnancy-outcome-derivation-of-a-multiple-marker-test
#4
Suneeta Senapati, Mary D Sammel, Samantha F Butts, Peter Takacs, Karine Chung, Kurt T Barnhart
OBJECTIVE: To predict first trimester pregnancy outcome using biomarkers in a multicenter cohort. DESIGN: Case-control study. SETTING: Three academic centers. PATIENT(S): Women with pain and bleeding in early pregnancy. INTERVENTION(S): Sera from women who were 5-12 weeks' gestational age with ectopic pregnancy (EP), viable intrauterine pregnancy (IUP), and miscarriage/spontaneous abortion (SAB) was analyzed by ELISA and immunoassay for activin A, inhibin A, P, A Disintegrin And Metalloprotease-12, pregnancy-associated plasma protein A (PAPP-A), pregnancy specific B1-glycoprotein (SP1), placental-like growth factor, vascular endothelial growth factor, glycodelin (Glyc), and hCG...
December 2016: Fertility and Sterility
https://www.readbyqxmd.com/read/28339648/three-dimensional-testicular-organoid-a-novel-tool-for-the-study-of-human-spermatogenesis-and-gonadotoxicity-in-vitro%C3%A2
#5
Samuel S Pendergraft, Hooman Sadri-Ardekani, Anthony Atala, Colin E Bishop
Existing methods for evaluating the potential gonadotoxicity of environmental agents and pharmaceutical compounds rely heavily on animal studies. The current gold standard in vivo functional assays in animals are limited in their human predictive capacity. In addition, existing human two-dimensional in vitro models of testicular toxicity do not accurately reflect the in vivo situation. A more reliable testicular in vitro model system is needed to better assess the gonadotoxic potential of drugs prior to progression into clinical trials...
February 17, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28333356/the-safety-and-efficacy-of-controlled-ovarian-hyperstimulation-for-fertility-preservation-in-women-with-early-breast-cancer-a-systematic-review
#6
Rachael J Rodgers, Geoffrey D Reid, Juliette Koch, Rebecca Deans, William L Ledger, Michael Friedlander, Robert B Gilchrist, Kirsty A Walters, Jason A Abbott
STUDY QUESTION: Can controlled ovarian hyperstimulation (COH) for fertility preservation be effectively conducted in women with breast cancer without worsening their prognosis? SUMMARY ANSWER: COH with co-administration of letrozole suppresses oestradiol levels without significantly impacting oocyte yield or decreasing disease-free survival rates. WHAT IS KNOWN ALREADY: Oestradiol has the capacity to stimulate the proliferation of breast cancer cells...
February 27, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28333301/preconception-maternal-lipoprotein-levels-in-relation-to-fecundability
#7
Sarah J Pugh, Enrique F Schisterman, Richard W Browne, Anne M Lynch, Sunni L Mumford, Neil J Perkins, Robert Silver, Lindsey Sjaarda, Joseph B Stanford, Jean Wactawski-Wende, Brian Wilcox, Katherine L Grantz
STUDY QUESTION: Are maternal preconception lipid levels associated with fecundability? SUMMARY ANSWER: Fecundability was reduced for all abnormal female lipid levels including total cholesterol, low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C) and total triglyceride levels. WHAT IS KNOWN ALREADY: Subfecundity affects 7-15% of the population and lipid disorders are hypothesized to play a role since cholesterol acts as a substrate for the synthesis of steroid hormones...
March 15, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28333300/comparison-of-global-gene-expression-profiles-of-microdissected-human-foetal-leydig-cells-with-their-normal-and-hyperplastic-adult-equivalents
#8
Grete Lottrup, Kirstine Belling, Henrik Leffers, John E Nielsen, Marlene D Dalgaard, Anders Juul, Niels E Skakkebæk, Søren Brunak, Ewa Rajpert-De Meyts
STUDY QUESTION: Do human adult Leydig cells (ALCs) within hyperplastic micronodules display characteristics of foetal LCs (FLCs)? SUMMARY ANSWER: The gene expression profiles of FLCs and all ALC subgroups were clearly different, but there were no significant differences in expressed genes between the normally clustered and hyperplastic ALCs. WHAT IS KNOWN ALREADY: LCs are the primary androgen producing cells in males throughout development and appear in chronologically distinct populations; FLCs, neonatal LCs and ALCs...
March 17, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28333292/a-randomized-double-blinded-controlled-trial-of-hcg-as-luteal-phase-support-in-natural-cycle-frozen-embryo-transfer
#9
Vivian Chi Yan Lee, Raymond Hang Wun Li, William Shu Biu Yeung, H O Pak Chung, Ernest Hung Yu Ng
STUDY QUESTION: Does the use of hCG as luteal phase support in natural cycle frozen embryo transfer (FET) increase the ongoing pregnancy rate? STUDY ANSWER: The use of hCG in natural cycle FET did not improve the ongoing pregnancy rate. WHAT IS KNOWN ALREADY: The use of luteal phase support in stimulated cycles has been associated with higher live-birth rates and the results are similar when using hCG or progesterone. STUDY DESIGN SIZE, DURATION: This is a randomized double-blinded controlled trial of 450 women recruited between August 2013 and October 2015...
March 8, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28333280/hcg-activates-the-erk1-2-mitogen-activated-protein-kinase-pathway-in-human-endometrial-stromal-cells-transiently-increasing-the-progesterone-receptor-and-regulating-genes-associated-with-endometrial-receptivity
#10
Alejandro Tapia-Pizarro, Sebastián Archiles, Felipe Argandoña, Cecilia Valencia, Keyla Zavaleta, María Cecilia Johnson, Reinaldo González-Ramos, Luigi Devoto
STUDY QUESTION: How does hCG signal in human endometrial stromal cells (ESCs) and what is its role in regulating ESC function? SUMMARY ANSWER: CG signaling in ESCs activates the extracellular signal-regulated protein kinases 1 and 2 (Erk1/2) pathway through exchange protein activated by cAMP (Epac) and transiently increases progesterone receptor (PR) transcript and protein expression and its transcriptional function. WHAT IS KNOWN ALREADY: hCG is one of the earliest embryo-derived secreted signals in the endometrium, which abundantly expresses LH/hCG receptors...
March 14, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28333263/loss-of-luteotropic-prostaglandin-e-plays-an-important-role-in-the-regulation-of-luteolysis-in-women
#11
Junko Nio-Kobayashi, Masataka Kudo, Noriaki Sakuragi, Toshihiko Iwanaga, W Colin Duncan
STUDY QUESTION: Do intraluteal prostaglandins (PG) contribute to luteal regulation in women? SUMMARY ANSWER: Prostaglandin E (PGE), which is produced in human granulosa-lutein cells stimulated with luteotropic hCG, exerts similar luteotropic effects to hCG, and the expression of PG synthetic and metabolic enzymes in the human CL is driven toward less PGE but more prostaglandin F (PGF) during luteolysis. WHAT IS KNOWN ALREADY: Uterine PGF is a major luteolysin in many non-primate species but not in women...
March 17, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28333025/high-progesterone-levels-in-the-beginning-of-icsi-antagonist-cycles-and-clinical-pregnancy-still-a-concern
#12
Tatiana R Panaino, Joyce B da Silva, Maria Augusta T de Lima, Paloma Lira, Patricia C Arêas, Ana Cristina A Mancebo, Marcelo M de Souza, Roberto A Antunes, Maria do Carmo B de Souza
OBJECTIVE: In controlled ovarian hyperstimulation (COH) using antagonist cycles, an incomplete luteolysis could happen after an inefficient previous luteolysis. Since antagonist cycles are frequent today, this study aims to access the impact of serum progesterone in the beginning and at the end of stimulation, and pregnancy outcomes. METHODS: single-center cohort study, 461 fresh embryo transfers in ICSI antagonist cycles. Serum progesterone levels was measured in the beginning of COH (P4i) and on hCG day (P4f) using threshold values of 1...
February 1, 2017: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/28331170/-pathological-complete-response-of-metastatic-testicular-tumor-with-persistent-low-level-positive-human-chorionic-gonadotropin-after-chemotherapy
#13
Ryosuke Jikuya, Akihito Hashizume, Tomoyuki Tatenuma, Nobuhiko Mizuno, Kentaro Muraoka, Masaki Kawai, Akitoshi Takizawa, Takeshi Kishida
We describe a case of testicular tumor with multiple metastasis to the lung,retoroperitoneal lymph node, and brain. After chemotherapy the retroperitoneal lymph node and brain metastasis disappeared,but the multiple pulmonary metastases but not disappear,although they were reduced in size. Since the human chorionic gonadotoropin (HCG) was persistently dected at a low level,we performed a testosterone tolerance test. The HCG level became undetectable for a while,but was detected at a low level again. Then the patient underwent residual tumor removal of some of the residual pulmonary disease,which was diagnosed as tumor necrosis...
March 2017: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/28329740/human-chorionic-gonadotropin-regression-curves-after-partial-or-complete-molar-pregnancy-in-flanders-are-they-different-from-regression-curves-from-the-eighties
#14
Sien Delattre, Sileny Han, Philippe Moerman, Jaak Billen, Frédéric Goffin, Kathleen Scharpé, Ignace Vergote
BACKGROUND/AIMS: We updated human chorionic gonadotropin (hCG) regression curves created in the eighties after evacuation of complete and partial molar (CM and PM, respectively) pregnancies using modern hCG assays. We created similar curves for patients in need of chemotherapy (gestational trophoblastic neoplasia [GTN]). METHODS: A total of 126 patients who were diagnosed with gestational trophoblastic disease from 1990 to 2014 were included. We compared curves from 2 groups, CM and PM, with historical ones...
March 23, 2017: Gynecologic and Obstetric Investigation
https://www.readbyqxmd.com/read/28328856/the-influence-of-different-growth-hormone-addition-protocols-to-poor-ovarian-responders-on-clinical-outcomes-in-controlled-ovary-stimulation-cycles-a-systematic-review-and-meta-analysis
#15
Xue-Li Li, Li Wang, Fang Lv, Xia-Man Huang, Li-Ping Wang, Yu Pan, Xiao-Mei Zhang
BACKGROUND: Growth hormone (GH) is used as an adjuvant therapy in in vitro fertilization and embryo transfer (IVF-ET) for poor ovarian responders, but findings for its effects on outcomes of IVF have been conflicting. The aim of the study was to compare IVF-ET outcomes among women with poor ovarian responders, and find which subgroup can benefit from the GH addition. METHODS: We searched the databases, using the terms "growth hormone," "GH," "IVF," "in vitro fertilization...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28326509/the-steroid-response-to-human-chorionic-gonadotropin-hcg-stimulation-in-men-with-klinefelter-syndrome-does-not-change-using-immunoassay-or-mass-spectrometry
#16
L Roli, D Santi, S Belli, S Tagliavini, S Cavalieri, M C De Santis, E Baraldi, F Fanelli, M Mezzullo, A R Granata, U Pagotto, R Pasquali, V Rochira, C Carani, M Simoni, T Trenti
PURPOSE: Liquid-chromatography tandem mass-spectrometry (LC-MS/MS) was developed in parallel to Immunoassays (IAs) and today is proposed as the "gold standard" for steroid assays. Leydig cells of men with Klinefelter syndrome (KS) are able to respond to human chorionic gonadotropin (hCG) stimulation, even if testosterone (T) production was impaired. The aim was to evaluate how results obtained by IAs and LC-MS/MS can differently impact on the outcome of a clinical research on gonadal steroidogenesis after hCG stimulation...
March 21, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28325095/concomitant-use-of-fsh-and-low-dose-recombinant-hcg-during-the-late-follicular-phase-versus-conventional-controlled-ovarian-stimulation-for-intracytoplasmic-sperm-injection-cycles
#17
Carla Andrade Rebello Iaconelli, Amanda Souza Setti, Daniela Paes Almeida Ferreira Braga, Luiz Guilherme Louzada Maldonado, Assumpto Iaconelli, Edson Borges, Tsutomu Aoki
The objective of this study was to investigate the effects of low-dose hCG supplementation on ICSI outcomes and controlled ovarian stimulation (COS) cost. Three hundred and thirty patients undergoing ICSI were split into groups according to the COS protocol: (i) control group (n = 178), including patients undergoing conventional COS treatment; and (ii) low-dose hCG group (n = 152), including patients undergoing COS with low-dose hCG supplementation. Lower mean total doses of FSH administered and higher mean oestradiol level and mature oocyte rates were observed in the low-dose hCG group...
March 22, 2017: Human Fertility: Journal of the British Fertility Society
https://www.readbyqxmd.com/read/28323945/coordinated-regulation-among-progesterone-prostaglandins-and-egf-like-factors-in-human-ovulatory-follicles
#18
Yohan Choi, Kalin Wilson, Patrick R Hannon, Katherine L Rosewell, Mats Brännström, James W Akin, Thomas E Curry, Misung Jo
CONTEXT: In animal models, the LH surge increases progesterone (P4)/its receptor (PGR), prostaglandins (PTGs), and epidermal growth factor (EGF)-like factors that play essential roles in ovulation. However, little is known about the expression, regulation, and function of these key ovulatory mediators in humans. OBJECTIVES: To determine when and how these key ovulatory mediators are induced after the luteinizing hormone surge in human ovaries. DESIGN AND PARTICIPANTS: Timed periovulatory follicles were obtained from cycling women...
March 9, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28323291/vaginal-use-of-micronized-progesterone-for-luteal-support-a-randomized-study-comparing-utrogestan%C3%A2-and-crinone%C3%A2-8
#19
Lucie Michnova, Jiri Dostal, Milan Kudela, Petr Hamal, Katerina Langova
BACKGROUND AND OBJECTIVE: Luteal phase physiology is distorted by in vitro fertilization (IVF) cycles using gonadotropin-releasing hormone (GnRH) agonists and antagonists, Controlled ovarian hyperstimulation leads to luteal phase defect and for this reason, luteal phase support is now an integral part of IVF/ICSI-ET programs. The support is provided by hCG, progesterone or GnRH-a. This study compared the efficiency, safety and tolerance of two vaginal micronized progesterones, Utrogestan and Crinone 8%...
March 14, 2017: Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia
https://www.readbyqxmd.com/read/28322539/a-review-on-ovarian-hyperstimulation-syndrome-ohss-management-strategies
#20
Ashley M Eskew, Kenan R Omurtag
Ovarian hyperstimulation syndrome (OHSS) is one of the most frequent, serious and potentially lethal iatrogenic complications of controlled ovarian stimulation. Despite extensive research, the exact pathogenesis of this syndrome remains less clear, but there appears to be a relationship of increased vascular permeability mediated by HCG and other downstream mediators. Adequate experience with ovulation induction therapy and identifying patients with known risk factors are essential in preventing OHSS. As this is a completely iatrogenic disease numerous strategies have been investigated to help decrease the risk of OHSS and their effects on pregnancy and live birth rate...
March 21, 2017: Minerva Endocrinologica
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