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Progesterone in pregnancy

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https://www.readbyqxmd.com/read/29145579/progesterone-the-maternal-immune-system-and-the-onset-of-parturition-in-the-mouse
#1
Lydia F Edey, Hector Georgiou, Kieran P O'Dea, Sam Mesiano, Bronwen R Herbert, Kaiyu Lei, Renyi Hua, Danijela Markovic, Simon N Waddington, David MacIntyre, Philip Bennett, Masao Takata, Mark R Johnson
The role of progesterone (P4) in the regulation of the local (uterine) and systemic innate immune system, myometrial expression of connexin 43 (Cx-43) and cyclooxygenase 2 (COX-2) and the onset of parturition was examined in: 1) naïve mice delivering at term; 2) E16 mice treated with RU486 (P4-antagonist) to induce preterm parturition; and 3) in mice treated with P4 to prevent term parturition.In naïve mice, myometrial neutrophil and monocyte numbers peaked at E18 and declined with the onset of parturition...
November 14, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/29142445/a-study-of-controlled-ovarian-stimulation-with-clomiphene-citrate-or-letrozole-in-combination-with-gonadotropins-and-iui-in-unexplained-infertility
#2
Madhusmita Hembram, Ratna Biswas, Anju Jain
Aim: To compare the effect of clomiphene citrate (CC) + human menopausal gonadotropin (hMG) with letrozole + hMG on size, number of follicles, endometrial thickness, serum levels of oestradiol and progesterone and pregnancy rate. Settings and Design: Non-randomised interventional study. Patients and Methods: A total number of 60 patients in the age group of 20-35 years with unexplained infertility were divided into two groups, 30 in each. Group A received CC + hMG and group B received letrozole + hMG...
July 2017: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/29141236/concentrations-of-a-pgf2%C3%AE-metabolite-during-pregnancy-on-the-days-that-luteolysis-occurs-in-nonbred-heifers
#3
REVIEW
F L V Pinaffi, E R Araujo, O J Ginther
Concentrations of a metabolite of PGF2α (PGFM) were compared between nonbred (n = 6) and pregnant (n = 8) heifers on days 16, 17, and 18 postovulation. On each day, an 8-h session of hourly blood sampling was done. Averaged over the 8-h sessions, mean concentration of PGFM was less (P < 0.0009) in the pregnant group (45.2 ± 3.2 pg/mL) than that in the nonbred group (65.6 ± 7.9 pg/mL), but the minimal concentration per session was not significantly different between groups. Pulses of PGFM (identified by coefficient of variance) were similar in frequency between groups but were less (P < 0...
November 3, 2017: Domestic Animal Endocrinology
https://www.readbyqxmd.com/read/29136115/estradiol-levels-are-altered-in-human-immunodeficiency-virus-infected-pregnant-women-randomized-to-efavirenz-versus-lopinavir-ritonavir-based-antiretroviral-therapy
#4
Chloe R McDonald, Andrea L Conroy, Joel L Gamble, Eszter Papp, Michael Hawkes, Peter Olwoch, Paul Natureeba, Moses Kamya, Michael Silverman, Deborah Cohan, Catherine A Koss, Grant Dorsey, Kevin C Kain, Lena Serghides
Background: Combination antiretroviral therapy (cART) use in pregnancy has been associated with hormonal dysregulation. We performed a secondary retrospective analysis of longitudinal progesterone and estradiol levels in pregnancy using specimens from the Protease Inhibitors to Reduce Malaria Morbidity in HIV-infected Pregnant Women study, which randomized Ugandan human immunodeficiency virus (HIV)-infected ART-naive women to initiate either lopinavir/ritonavir (LPV/r)-based or efavirenz (EFV)-based cART...
November 10, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29134715/relationship-between-follicular-volume-and-oocyte-competence-blastocyst-development-and-live-birth-rate-optimal-follicle-size-for-oocyte-retrieval
#5
Barbara Wirleitner, Jasmin Okhowat, Lucie Vištejnová, Milena Králíčková, Marie Karlíková, Pierre Vanderzwalmen, Fabien Ectors, Libor Hradecký, Maximilian Schuff, Maximilian Murtinger
OBJECTIVES: To analyse the oocyte competence in GnRHa stimulation cycles with regard to maturity, fertilization and blastocyst rate and clinical outcome (pregnancy and live birth rate) in correlation to follicular volume measured by 3D sonography and follicular fluid composition. METHODS: This was a prospective single-centre study conducted in the period June 2012 - June 2014 including 118 ovum pick-ups (OPUs) with subsequent embryo transfers (ET). Out of 1,493 aspirated follicles we analysed 1,236 follicles and traced oocytes grouped according to follicular volume...
November 14, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29132037/flunixin-meglumine-improves-pregnancy-rate-in-embryo-recipient-beef-cows-with-an-excitable-temperament
#6
R K Kasimanickam, J B Hall, C T Estill, J P Kastelic, C Joseph, R L Abdel Aziz, D Nak
Objectives were to determine effects of: 1) handling temperament and administration of flunixin meglumine, an inhibitor of prostaglandin F2a (PGF2a) synthesis, given at the time of embryo transfer, on pregnancy rates in beef cattle embryo transfer recipients; 2) handling temperament and flunixin meglumine on peripheral concentrations of progesterone, cortisol, substance-P, prostaglandin F metabolites (PGFM, (13,14-dihydro-15-keto-PGF2a) and isoprostane 8-epi PGF2a; and 3) flunixin meglumine treatment on proportion of non-pregnant recipient cows returning to estrus within an expected interval...
November 10, 2017: Theriogenology
https://www.readbyqxmd.com/read/29131096/women-serum-concentrations-of-the-il-10-family-of-cytokines-and-ifn-%C3%AE-decrease-from-the-third-trimester-of-pregnancy-to-active-labor
#7
José Javier Reyes-Lagos, Miguel Ángel Peña-Castillo, Juan Carlos Echeverría, Gilberto Pérez-Sánchez, Samantha Álvarez-Herrera, Enrique Becerril-Villanueva, Lenin Pavón, Rodrigo Ayala-Yáñez, Ramón González-Camarena, Gustavo Pacheco-López
Labor is regarded as increased myometrial activity with a regular contractility pattern. At this final stage of pregnancy, myometrial quiescence is lost, accompanied by altered immune homeostasis. It is well known that the interleukin (IL)-10 family of cytokines modulates immunological responses mainly in epithelial cells, including the endometrium. To investigate their inflammatory profile during labor, we performed a longitudinal study in a group of healthy pregnant women (n = 20) with uncomplicated pregnancies in the third trimester of pregnancy and during active labor...
November 4, 2017: Neuroimmunomodulation
https://www.readbyqxmd.com/read/29128702/effects-of-preovulatory-follicle-size-on-estradiol-concentrations-corpus-luteum-diameter-progesterone-concentrations-and-subsequent-pregnancy-rate-in-buffalo-cows-bubalus-bubalis
#8
A K Pandey, S P S Ghuman, G S Dhaliwal, M Honparkhe, J B Phogat, S Kumar
The present study was undertaken to investigate the effects of preovulatory follicle (POF) size on estradiol concentrations, luteal profile (CL diameter and progesterone concentration) and subsequent pregnancy rate in Murrah buffalo cows. The buffalo cows (n = 49) were synchronized for estrus by two doses of PGF2α given 11 days apart. The buffalo cows were inseminated during standing estrus and again after 24 h. Ovaries were scanned at estrus and 24 h intervals until ovulation, thereafter on days 5, 12 and 16 post-ovulation to examine the POF and CL diameter...
November 4, 2017: Theriogenology
https://www.readbyqxmd.com/read/29128220/identification-of-potential-embryokines-in-the-bovine-reproductive-tract
#9
P Tríbulo, L G B Siqueira, L J Oliveira, T Scheffler, P J Hansen
Knowledge of the molecules used by the maternal reproductive tract to regulate development of the preimplantation embryo is largely incomplete. The goal of the present experiment was to identify candidates for this function. The approach was to assess expression patterns in the endometrium and oviduct of 93 genes encoding for hormones, growth factors, chemokines, cytokines, and WNT-related molecules. Results show that all of the genes were expressed in the reproductive tract. Expression in oviduct was affected by day of the estrous cycle for 21 genes with 11 genes having highest expression at estrus (CCL21, CTGF, CXCL10, CXCL16, DKK3, FGF10, IL18, IL33, IL34, PGF, and SFRP2), one gene at d 3 (WNT4), 8 at d 5 (BMP7, HGF, IL6, SFRP1, TGFB1, WIF1, WNT2, and WNT5A), and one at d 7 (IK)...
November 8, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29126832/corrigendum-to-relationship-between-time-post-ovulation-and-progesterone-on-oocyte-maturation-and-pregnancy-in-canine-cloning-anim-reprod-sci-185-2017-75-82
#10
Joung Joo Kim, Kang Bae Park, Eun Ji Choi, Sang Hwan Hyun, Nam-Hyung Kim, Yeon Woo Jeong, Woo Suk Hwang
No abstract text is available yet for this article.
November 7, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/29125272/the-relationship-between-the-hormone-levels-before-transplantation-and-outcomes-of-hormone-replacement-therapy-frozen-embryo-transfer
#11
Yao-Fang Liu, Fang Wang, Gui-Ying Huang, Xi-Guang Mao
OBJECTIVE: To analyze the relationship between outcomes of hormone replacement therapy-frozen embryo transfer (HRT-FET) and serum estradiol and progesterone levels on the day of endometrial transformation and before transplantation. METHODS: Clinical datas of patients who underwent 426 cycles of FET were retrospectively analyzed and were divided into groups according to estradiol and progesterone levels. Differences in embryo implantation rate and clinical pregnancy rate were compared, and relationship between estradiol levels and outcome of transplantation was analyzed...
November 10, 2017: Minerva Endocrinologica
https://www.readbyqxmd.com/read/29121416/pregnant-outcomes-of-atypical-polypoid-adenomyoma-treated-with-progestin-therapy
#12
Qin Chen, Weiguo Lu, Bingjian Lu
AIM: We aimed to investigate the long-term clinical and pregnancy outcome in patients with atypical polypoid adenomyoma (APA) after hysteroscopic excision. METHODS: We analyzed the clinicopathological features, including pregnancy outcomes, in 10 APA patients who had been treated with hysteroscopic excision of the lesion and progesterone therapy. RESULTS: The patients were all nulliparous, and nine had been clinically diagnosed as infertile...
November 9, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29120551/current-medical-strategies-in-the-prevention-of-ovarian-hyperstimulation-syndrome
#13
Miro Kasum, Slavko Orešković, Daniela Franulić, Ermin Čehić, Albert Lila, Goran Vujić, Franjo Grgić
The purpose of this review is to analyze current medical strategies in the prevention of ovarian hyperstimulation syndrome (OHSS) during ovarian stimulation for in vitro fertilization. Owing to contemporary preventive measures of OHSS, the incidence of moderate and severe forms of the syndrome varies between 0.18% and 1.40%. Although none of medical strategies is completely effective, there is high-quality evidence that replacing human chorionic gonadotropin (hCG) by gonadotropin-releasing hormone (GnRH) agonists after GnRH antagonists and moderate- quality evidence that GnRH antagonist protocols, dopamine agonists and mild protocols reduce the occurrence of OHSS...
March 2017: Acta Clinica Croatica
https://www.readbyqxmd.com/read/29118976/impact-of-hormonal-modulation-at-proestrus-on-ovarian-responses-and-uterine-gene-expression-of-suckled-anestrous-beef-cows
#14
Manoel Francisco de Sá Filho, Angela Maria Gonella-Diaza, Mariana Sponchiado, Marcio Ferreira Mendanha, Guilherme Pugliesi, Roney Dos Santos Ramos, Sónia Cristina da Silva Andrade, Gustavo Gasparin, Luiz Lehmann Coutinho, Marcelo Demarchi Goissis, Fernando Silveira Mesquita, Pietro Sampaio Baruselli, Mario Binelli
Background: This study evaluated the impact of hormonal modulation at the onset of proestrus on ovarian response and uterine gene expression of beef cows. Methods: A total of 172 anestrous beef cows were assigned to one of four groups according to the treatment with estradiol cypionate (ECP) and/or equine chorionic gonadotropin (eCG) [CON (n = 43), ECP (n = 43), eCG (n = 44) and ECP + eCG (n = 42)]. Results: ECP-treated cows (ECP and ECP + eCG groups) presented greater occurrence of estrus (44...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29117757/the-effect-of-prenatal-vaginal-progesterone-on-cervical-length-in-twin-pregnancies
#15
Isabela K R Agra, Mário H B Carvalho, Wagner R Hernandez, Rossana P V Francisco, Marcelo Zugaib, Maria L Brizot
PURPOSE: The aim of this study was to investigate the influence of vaginal progesterone on cervical length in asymptomatic nonselected twin gestations. METHODS: This was a secondary analysis of a randomized, double-blind, placebo-controlled trial of twin pregnancies exposed to vaginal progesterone or placebo. The cervical length was examined at six different time periods: 18-21(+6) weeks (T1), 21-23(+6) weeks (T2), 24-26(+6) weeks (T3), 27-29(+6) weeks (T4), 30-32(+6) weeks (T5) and 33-34(+6) weeks (T6)...
November 8, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29116004/reproductive-profiles-and-risk-of-breast-cancer-subtypes-a-multi-center-case-only-study
#16
Olivier Brouckaert, Anja Rudolph, Annouschka Laenen, Renske Keeman, Manjeet K Bolla, Qin Wang, Adelheid Soubry, Hans Wildiers, Irene L Andrulis, Volker Arndt, Matthias W Beckmann, Javier Benitez, Carl Blomqvist, Stig E Bojesen, Hiltrud Brauch, Paul Brennan, Hermann Brenner, Georgia Chenevix-Trench, Ji-Yeob Choi, Sten Cornelissen, Fergus J Couch, Angela Cox, Simon S Cross, Kamila Czene, Mikael Eriksson, Peter A Fasching, Jonine Figueroa, Henrik Flyger, Graham G Giles, Anna González-Neira, Pascal Guénel, Per Hall, Antoinette Hollestelle, John L Hopper, Hidemi Ito, Michael Jones, Daehee Kang, Julia A Knight, Veli-Matti Kosma, Jingmei Li, Annika Lindblom, Jenna Lilyquist, Artitaya Lophatananon, Arto Mannermaa, Siranoush Manoukian, Sara Margolin, Keitaro Matsuo, Kenneth Muir, Heli Nevanlinna, Paolo Peterlongo, Katri Pylkäs, Suleeporn Saajrang, Caroline Seynaeve, Chen-Yang Shen, Xiao-Ou Shu, Melissa C Southey, Anthony Swerdlow, Soo-Hwang Teo, Rob A E M Tollenaar, Thérèse Truong, Chiu-Chen Tseng, Alexandra J van den Broek, Carolien H M van Deurzen, Robert Winqvist, Anna H Wu, Cheng Har Yip, Jyh-Cherng Yu, Wei Zheng, Roger L Milne, Paul D P Pharoah, Douglas F Easton, Marjanka K Schmidt, Montserrat Garcia-Closas, Jenny Chang-Claude, Diether Lambrechts, Patrick Neven
BACKGROUND: Previous studies have shown that reproductive factors are differentially associated with breast cancer (BC) risk by subtypes. The aim of this study was to investigate associations between reproductive factors and BC subtypes, and whether these vary by age at diagnosis. METHODS: We used pooled data on tumor markers (estrogen and progesterone receptor, human epidermal growth factor receptor-2 (HER2)) and reproductive risk factors (parity, age at first full-time pregnancy (FFTP) and age at menarche) from 28,095 patients with invasive BC from 34 studies participating in the Breast Cancer Association Consortium (BCAC)...
November 7, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/29115663/endogenous-annexin-a1-anxa1-modulates-early-phase-gestation-and-offspring-sex-ratio-skewing
#17
Cristina Bichels Hebeda, Isabel Daufenback Machado, Isadora Reif-Silva, Jusciele Brogin Moreli, Sonia Maria Oliani, Suchita Nadkarni, Mauro Perretti, Estela Bevilacqua, Sandra H P Farsky
Annexin A1 (AnxA1) is a glucocorticoid-regulated anti-inflammatory protein secreted by phagocytes and other specialised cells. In the endocrine system, AnxA1 controls secretion of steroid hormones and it is abundantly expressed in the testis, ovaries, placenta and seminal fluid, yet its potential modulation of fertility has not been described. Here we observed that AnxA1 knockout (KO) mice delivered a higher number of pups, with a higher percentage of female offsprings. This profile was not dependent on the male features, as sperm from KO male mice did not present functional alterations, and had an equal proportion of Y and X chromosomes, comparable to wild type (WT) male mice...
November 8, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29110260/disparities-in-reproductive-outcomes-according-to-the-endometrial-preparation-protocol-in-frozen-embryo-transfer-the-risk-of-early-pregnancy-loss-in-frozen-embryo-transfer-cycles
#18
I Hatoum, L Bellon, N Swierkowski, M Ouazana, S Bouba, K Fathallah, B Paillusson, M Bailly, F Boitrelle, L Alter, M Bergère, J Selva, R Wainer
PURPOSE: The purpose of this study was to determine the effect of stimulated and artificial endometrial preparation protocols on reproductive outcomes in frozen embryo transfer (FET) cycles. METHODS: We performed a retrospective study of 1926 FET cycles over a 3.5-year period in the Fertility Unit at a University Hospital. Stimulated and artificial protocols were used for endometrial preparation. The embryos for FET were obtained from either in vitro fertilization or intracytoplasmic sperm injection cycles...
November 6, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29108060/effect-of-dried-distiller-s-grains-plus-solubles-in-postpartum-diets-of-beef-cows-on-reproductive-performance-of-dam-and-heifer-progeny
#19
E G Taylor, R P Lemenager, V Fellner, K R Stewart
Forty-eight primiparous and multiparous cows were fed a silage-based total mixed ration (TMR; CON), a TMR with 2.5 kg/d DM dried distiller's grains plus solubles (DDGS; MID), or a TMR with 4.7 kg/d DM DDGS (HIGH) from 8.5 ± 4 to 116 ± 4 d postpartum (DPP). All diets were formulated to be isocaloric for a postpartum ADG targeted at 0.22 kg, whereas CP exceeded requirements in both diets containing DDGS. Blood samples were collected from dams at 7- and 21-d intervals for progesterone concentration (resumption of cyclicity) and plasma urea nitrogen, respectively...
October 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/29103729/a-mathematical-model-of-the-interaction-between-bovine-blastocyst-developmental-stage-and-progesterone-stimulated-uterine-factors-on-differential-embryonic-development-observed-on-day-15-of-gestation
#20
Paul R Shorten, Anita M Ledgard, Martyn Donnison, Peter L Pfeffer, Robin M McDonald, Debra K Berg
A complex interaction between the developing bovine embryo and the growth potential of the uterine milieu it inhabits results in an embryo capable of developing past the maternal recognition stage and on to a successful pregnancy. Previously, we observed variation in the lengths of embryos recovered 8 d after bulk transfer of Day 7 in vitro-produced (IVP) blastocysts into the same uterus. Potential causes of the differential embryonic growth were examined and modeled using 2 rounds of bulk (n = 4-6) IVP transfers and recovery of these embryos 8 d later...
November 2, 2017: Journal of Dairy Science
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