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Progesterone administration

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https://www.readbyqxmd.com/read/28417348/elevated-progesterone-and-its-impact-on-birth-weight-after-fresh-embryo-transfers
#1
Yetunde Ibrahim, Miriam J Haviland, Michele R Hacker, Alan S Penzias, Kim L Thornton, Denny Sakkas
PURPOSE: The purpose of the study was to examine the association between serum progesterone levels on the day of hCG administration and birth weight among singleton live births after fresh embryo transfer. METHODS: This study was conducted as a retrospective cohort database analysis on patients who underwent IVF treatment cycles from January 2004 to April 2012. The study was performed at a University affiliated private infertility practice. All cycles that had achieved a singleton live birth after fresh embryo transfer and for which progesterone was measured on the day of hCG administration were examined...
April 17, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28405121/gnrh-agonist-treatment-improves-implantation-and-pregnancy-rates-of-frozen-thawed-embryos-transfer
#2
S A Hebisha, H M Adel
OBJECTIVE: To study the effect of GnRh agonist administration prior to estrogen-progesterone preparation of the endometrium on the implantation rate in frozen-thawed embryo transfer (FET) cycles in infertile patients treated with IVF/ICSI. DESIGN: Prospective controlled study. SETTING: Private center in Alexandria, Egypt. PATIENTS: Patients undergoing frozen-thawed embryo transfer FET. INTERVENTIONS: Patients were divided into two groups, A and B...
April 2017: Journal of Obstetrics and Gynaecology of India
https://www.readbyqxmd.com/read/28379469/in-vivo-intrabursal-administration-of-bioactive-lipid-sphingosine-1-phosphate-enhances-vascular-integrity-in-a-rat-model-of-ovarian-hyperstimulation-syndrome-ohss
#3
Mariana Di Pietro, Natalia Pascuali, Leopoldina Scotti, Griselda Irusta, Diana Bas, María May, Marta Tesone, Dalhia Abramovich, Fernanda Parborell
STUDY QUESTION: Can the bioactive lipid sphingosine-1 phosphate (S1P) act as an endothelial barrier-enhancing molecule and, in turn, restore the vascular integrity and homeostasis in a rat model of ovarian hyperstimulation syndrome (OHSS). STUDY ANSWER: In vivo administration of S1P may prevent the early onset of OHSS and decrease its severity. WHAT IS KNOWN ALREADY: Although advances in the prediction and treatment of OHSS have been made, complete prevention has not been possible yet...
April 1, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28363987/progesterone-induced-neuroprotection-in-reperfusion-promoted-mitochondrial-dysfunction-following-focal-cerebral-ischemia-in-rats
#4
Syed Suhail Andrabi, Suhel Parvez, Heena Tabassum
Alterations in mitochondrial permeability transition and organelle damage are key players in the development of cerebral ischemic tissue injury due to associated modifications in ATP turnover and cellular apoptosis/necrosis. Early restoration of blood flow and improvement of mitochondrial function might reverse the situation and help in recovery following an onset of stroke. Mitochondria and related bioenergetics can be effectively used as pharmacological targets. Progesterone (P4), one of the promising neurosteroids, has been found neuroprotective in various models of neurological diseases through a number of mechanisms...
March 31, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28351088/premature-progesterone-rise-positively-correlates-with-clinical-pregnancy-rate-in-in-vitro-fertilization-ivf-and-intracytoplasmic-sperm-injection-icsi-patients-with-good-ovarian-response
#5
Na Cui, Jie Zhang, Yueming Xu, Lei Jiang, Aimin Yang, Guimin Hao
Infertility affects millions of couples worldwide resulting in distress and depression. In the past several decades, in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) have been developed with high efficiency and success rate. The possible effects of gonadotropin administration on follicular metabolism have been discussed but the outcomes remain controversial. The aim of this study was to identify whether serum progesterone on the day of human chorionic gonadotropin (hCG) administration and the ratio of serum progesterone and the number of oocyte retrieved (P/O) had a predictive role for the outcomes of IVF/ICSI...
March 28, 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28344194/an-administration-of-tak-683-at-a-minimally-effective-dose-for-luteinizing-hormone-stimulation-under-the-absence-of-the-ovary-induces-luteinizing-hormone-surge-in-ovary-intact-goats
#6
Nahoko Kanai, Natsumi Endo, Satoshi Ohkura, Yoshihiro Wakabayashi, Hisanori Matsui, Hirokazu Matsumoto, Kaori Ishikawa, Akira Tanaka, Tatsuya Watanabe, Hiroaki Okamura, Tomomi Tanaka
The present study aimed to evaluate hormonal responses and their association with the TAK-683 blood concentrations in goats administered TAK-683 at a low dose, which had been previously determined as the minimally effective dose for luteinizing hormone (LH) stimulation in ovariectomized goats. In Experiment 1, 5 µg of TAK-683 treatment had no significant stimulatory effect on LH secretion in ovariectomized Shiba goats (n = 4). In Experiment 2, cycling goats received the treatment of prostaglandin F2α and progesterone-releasing controlled internal drug releasing (CIDR) to induce the follicular phase, then they were treated with 5 µg of TAK-683 (hour 0) intravenously (n = 4, IV) or subcutaneously (n = 3, SC) or with vehicle intravenously (n = 4, control) at 12 h after CIDR removal...
March 24, 2017: Journal of Reproduction and Development
https://www.readbyqxmd.com/read/28341573/quercetin-alters-uterine-fluid-volume-and-aquaporin-aqp-subunits-aqp-1-2-5-7-expression-in-the-uterus-in-the-presence-of-sex-steroids-in-rats
#7
Huma Shahzad, Nelli Giribabu, Kamarulzaman Karim, Sekaran Muniandy, Normadiah M Kassim, Naguib Salleh
Effects of quercetin on uterine fluid volume and aquaporin (AQP) expression in the uterus were investigated. Estradiol (E) or estradiol followed by progesterone (E+P) were given to ovariectomised rats with or without quercetin (10, 50 or 100mg/kg/day) treatment. Uteri were harvested and its inner/outer circumference ratio was determined. AQP-1, 2, 5 and 7 mRNA and protein levels in uterus were quantified by Real-time PCR and Western blotting respectively. Protein distribution was observed by immunohistochemistry...
March 22, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28333318/a-phase-iii-randomized-controlled-trial-comparing-the-efficacy-safety-and-tolerability-of-oral-dydrogesterone-versus-micronized-vaginal-progesterone-for-luteal-support-in-in-vitro-fertilization
#8
Herman Tournaye, Gennady T Sukhikh, Elke Kahler, Georg Griesinger
STUDY QUESTION: Is oral dydrogesterone 30 mg daily (10 mg three times daily [TID]) non-inferior to micronized vaginal progesterone (MVP) 600 mg daily (200 mg TID) for luteal support in in vitro fertilization (IVF), assessed by the presence of fetal heartbeats determined by transvaginal ultrasound at 12 weeks of gestation? SUMMARY ANSWER: Non-inferiority of oral dydrogesterone versus MVP was demonstrated at 12 weeks of gestation, with a difference in pregnancy rate and an associated confidence interval (CI) that were both within the non-inferiority margin...
May 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28332278/a-comparative-study-of-the-effects-of-intramuscular-administration-of-gonadorelin-mating-and-intrauterine-infusion-of-either-raw-seminal-plasma-or-seminal-plasma-purified-%C3%AE-ngf-on-luteal-development-in-llamas
#9
M Silva, F Urra, C Ulloa-Leal, M H Ratto
The aim of this study was to compare the effect of the intramuscular administration of 50 μg of gonadorelin acetate versus natural mating, intrauterine infusion (i.u.) of a physiological relevant dose of either raw llama seminal plasma (SP) or purified beta-nerve growth factor from seminal origin (spβ-NGF) on ovulation rate and corpus luteum (CL) development and function in llamas. Females with a follicle (≥8 mm) were assigned to groups: (i) i.m. administration of 50 μg of gonadorelin acetate (GnRH; positive control; n = 4); (ii) single mating (mating; n = 6); (iii) i...
March 22, 2017: Reproduction in Domestic Animals, Zuchthygiene
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
#10
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/28323948/dose-dependent-suppression-of-gonadotropins-and-ovarian-hormones-by-elagolix-in-healthy-premenopausal-women
#11
Juki Ng, Kristof Chwalisz, David C Carter, Cheri E Klein
Context: Elagolix is a nonpeptide, oral gonadotropin-releasing hormone (GnRH) antagonist being developed for sex-hormone dependent diseases in women. Objective: To evaluate the pharmacokinetics and pharmacodynamics of elagolix. Design, Setting, and Participants: Randomized, double-blind, placebo-controlled, multiple-ascending dose study in 45 healthy premenopausal women at a research unit. Interventions: Elagolix 150 mg once daily or 100, 200, 300 or 400 mg twice daily or placebo for 21 days...
February 16, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28322310/hormone-therapy-at-early-post-menopause-increases-cognitive-control-related-prefrontal-activity
#12
Romuald Girard, Elise Météreau, Julie Thomas, Michel Pugeat, Chen Qu, Jean-Claude Dreher
Clinical data have been equivocal and controversial as to the benefits to the brain and cognition of hormone therapy (HT) in postmenopausal women. Recent reevaluation of the role of estrogens proposed that HT may effectively prevent the deleterious effects of aging on cognition, and reduces the risks of dementia, including Alzheimer's disease, if initiated early at the beginning of menopause. Yet, little is known about the effects of HT on brain activation related to cognitive control, the ability to make flexible decisions in relation to internal goals...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28318214/preterm-labor-prevention-and-management
#13
Kristen Rundell, Bethany Panchal
In the United States, preterm delivery is the leading cause of neonatal morbidity and is the most common reason for hospitalization during pregnancy. The rate of preterm delivery (before 37 weeks' gestation) has been declining since 2007. Clinical diagnosis of preterm labor is made if there are regular contractions and concomitant cervical change. Less than 10% of women with a clinical diagnosis of preterm labor will deliver within seven days of initial presentation. Women with a history of spontaneous preterm delivery are 1...
March 15, 2017: American Family Physician
https://www.readbyqxmd.com/read/28301216/bioidentical-menopausal-hormone-therapy-registered-hormones-non-oral-estradiol%C3%A2-%C3%A2-%C3%A2-progesterone-are-optimal
#14
M L'Hermite
The many advantages of registered bioidentical sex hormones over registered, conventional, non-bioidentical menopausal hormone therapy (MHT) are considered. The transdermal route of estrogen administration avoids excess venous thromboembolic and ischemic stroke events. There is some indication that conjugated equine estrogens are more thrombogenic and most likely induce some hypertensive responses; estradiol might also be superior to conjugated equine estrogens (CEE) in terms of global cardiovascular health...
March 16, 2017: Climacteric: the Journal of the International Menopause Society
https://www.readbyqxmd.com/read/28295285/tolosa-hunt-syndrome-presenting-during-pregnancy-following-progesterone-administration
#15
Charles E Litwin, Annie S O Leung
No abstract text is available yet for this article.
March 10, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28278441/facilitation-of-sexual-behavior-in-ovariectomized-rats-by-estradiol-and-testosterone-a-preclinical-model-of-androgen-effects-on-female-sexual-desire
#16
Sherri Lee Jones, Nafissa Ismail, James G Pfaus
In the United States and Canada, there are no approved treatments for hypoactive sexual desire disorder in postmenopausal women. Testosterone improves female sexual desire in naturally- and surgically-menopausal women maintained on estrogen replacement therapy, and long-term safety data from randomized placebo-controlled clinical trials has yielded promising results. However, the mechanisms associated with its efficacy are not known, and could be addressed using preclinical rodent models; yet there is no systematic evaluation of the effects of estradiol and testosterone on female rat sexual behavior...
February 17, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28277105/the-induction-of-ovulation-by-pulsatile-administration-of-gnrh-an-appropriate-method-in-hypothalamic-amenorrhea
#17
Fotini Christou, Nelly Pitteloud, Fulgencio Gomez
The induction of ovulation by the means of a pump which assures the pulsatile administration of GnRH is a well-known method that applies to women suffering from amenorrhea of hypothalamic origin. Although a simple and efficient method to establish fertility, it is underused. Twelve patients suffering from this condition, 1 Kallmann syndrome, 4 normosmic isolated hypogonadotropic hypogonadism, and 7 functional hypothalamic amenorrhea desiring pregnancy were treated. They underwent one or more cycles of pulsatile GnRH, at a frequency of 90 minutes, either by the intravenous or the subcutaneous route...
March 6, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28276192/the-pregnancy-outcome-of-progesterone-primed-ovarian-stimulation-using-medroxyprogesterone-acetate4mg-versus-10mg-daily-in-infertile-women-undergoing-in-vitro-fertilization-a-randomized-controlled-trial
#18
J Dong, Y Wang, W R Chai, Q Q Hong, N L Wang, L H Sun, H Long, L Wang, H Tian, Q F Lyu, X F Lu, Q J Chen, Y P Kuang
OBJECTIVE: To investigate the clinical outcome and endocrinological characteristics of progestin-primed ovarian stimulation (PPOS) using medroxyprogesterone acetate (MPA) 4mg versus 10mg daily in infertile women with normal ovary reserve. DESIGN: A randomized parallel controlled trial. SETTING: Tertiary-care academic medical center. PARTICIPANTS: 300 infertile women undergoing IVF/ICSI treatment. METHODS: HMG 225IU/d and MPA (group A: 10mg/d; group B: 4mg/d) were started simultaneously from cycle day 3 onwards...
March 9, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28272720/the-efficacy-of-modified-luteal-phase-support-with-intramuscular-progesterone-in-ivf-icsi-cycles-a-retrospective-observational-study
#19
A Conforti, I Strina, A Mollo, R Amoroso, V Marrone, C Alviggi, R Marci, G de Placido
OBJECTIVE: The use of gonadotropin-releasing hormone agonist for ovulation triggering has become an intriguing topic in the last few years. As long as adequate luteal phase support is provided, it may be a valuable alternative to standard hCG triggering, associated with a significant reduction in OHSS incidence. Several luteal phase support options have been proposed, but few studies have addressed the issue of the appropriate route for progesterone administration to women triggered with GnRHa...
February 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28258785/establishment-of-critical-timing-of-progesterone-supplementation-on-corpus-luteum-and-embryo-development-in-beef-heifers
#20
M H Parr, S Scully, P Lonergan, A C O Evans, M A Crowe, M G Diskin
Optimal concentrations of progesterone (P4) during early pregnancy are a major determinant of embryo survival in cattle. This study examined the effects of P4 supplementation, following a period of induced low P4, on corpus luteum (CL) development, circulating P4 concentrations and embryo development. A total of 107 beef heifers from one herd were used in the study. Following AI (Day 0) at a synchronized oestrus, heifers were randomly assigned to 1 of 5 treatment groups: (1) no subsequent treatment (control; n=15); (2) administration of a synthetic prostaglandin F2α analogue (PG) on Days 3, 3...
February 17, 2017: Animal Reproduction Science
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