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Progesterone in pregnancy

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https://www.readbyqxmd.com/read/28531369/should-high-bmi-be-a-reason-for-ivf-treatment-denial
#1
S Friedler, O Cohen, G Liberty, B Saar-Ryss, S Meltzer, T Lazer
Our aim was to examine the influence of BMI on the live-birth rate following IVF/ICSI and evaluate its specific contribution among other factors thus enabling accurate reproductive policy development. All patients that underwent IVF/ICSI at our center during January 2012-July 2015 were included in this retrospective study. A total of 1654 ICSI cycles were divided into four groups according to the patient's BMI (kg/m(2)): group I (normal weight): <25 (943 cycles); group II (overweight): 25-30 (403 cycles); group III (obese): 30-35 (212 cycles); group IV (morbid obesity): >35 (96 cycles)...
May 20, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28527571/progesterone-receptor-signaling-in-uterine-myometrial-physiology-and-preterm-birth
#2
San-Pin Wu, Francesco J DeMayo
Myometrium holds the structural integrity for the uterus and generates force for parturition with its primary component, the smooth muscle cells. The progesterone receptor mediates progesterone-dependent signaling and connects to a network of pathways for regulation of contractility and inflammatory responses in myometrium. Dysfunctional progesterone signaling has been linked to pregnancy complications including preterm birth. In the present review, we summarize recent findings on modifiers and effectors of the progesterone receptor signaling...
2017: Current Topics in Developmental Biology
https://www.readbyqxmd.com/read/28524047/oestrogen-and-progesterone-receptor-in-melanoma-and-nevi-an-immunohistochemical-study
#3
Emi Dika, Pier Alessandro Fanti, Sabina Vaccari, Elisa Capizzi, Alessio Degiovanni, Agnese Gobbi, Bianca Maria Piraccini, Simone Ribero, Carlotta Baraldi, Giulia Maria Ravaioli, Michelangelo Fiorentino, Annalisa Patrizi
The effect of hormonal stimulation and fertility treatments, as well as their role in the development of malignant melanoma (MM), is still to be determined. The aim of this study was to investigate the presence of oestrogen receptor alpha (ERα) and progesterone receptor (PR) in MM and nevi after hormonal stimulation. Immunohistochemical analyses were performed utilizing antibodies specifically directed against ERα and PR in MM and atypical nevi specimens from patients: (1) diagnosed during pregnancy, (2) diagnosed in the six months following delivery, or (3) who had undergone repetitive cycles of hormonal stimulation for in vitro fertilization in the year that preceded MM diagnosis...
May 19, 2017: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/28522317/the-association-between-cytochrome-p450-3a-progesterone-receptor-polymorphisms-plasma-17-ohpc-concentrations-and-spontaneous-preterm-birth
#4
Martha L Bustos, Steve N Caritis, Kathleen A Jablonski, Uma M Reddy, Yoram Sorokin, John M Thorp, Michael W Varner, Ronald J Wapner, Jay D Iams, Marshall W Carpenter, Alan M Peaceman, Brian M Mercer, Anthony Sciscione, Dwight J Rouse, Susan M Ramin
BACKGROUND: Infants born before 37 weeks' gestation are of public health concern since complications associated with preterm birth are the leading cause of mortality in children under 5 years of age and a major cause of morbidity and lifelong disability. The administration of 17-hydroxyprogesterone caproate (17-OHPC) reduces preterm birth by 33% in women with history spontaneous preterm birth (SPTB). We demonstrated previously that plasma concentrations of 17-OHPC vary widely among pregnant women and that women with 17-OHPC plasma concentrations in the lowest quartile had SPTB rates of 40% vs rates of 25% in those women with higher concentrations...
May 15, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28522271/medroxyprogesterone-acetate-drives-m2-macrophage-differentiation-toward-a-phenotype-of-decidual-macrophage
#5
Yung-Chieh Tsai, Joseph T Tseng, Chia-Yih Wang, Mei-Tsz Su, Jyun-Yuan Huang, Pao-Lin Kuo
M1 macrophage differentiation plays a crucial role in enhanced inflammation during pregnancy, which may lead to pregnancy complications. Therefore, modulation of macrophage differentiation toward the M2 phenotype is desirable to ensure a successful pregnancy. Medroxyprogesterone acetate (MPA) is a potent progestin with an anti-inflammatory property, but its effect on macrophage differentiation is unknown. This study aimed to examine whether MPA can induce an M2 macrophage differentiation by using the human monocytes cell line THP-1 or primary monocytes...
May 15, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28506949/frozen-embryo-transfer-prevents-the-detrimental-effect-of-high-estrogen-on-endometrium-receptivity
#6
Aynur Adeviye Erşahin, Mustafa Acet, Suat Süphan Erşahin, Nur Dokuzeylül Güngör
OBJECTIVE: To investigate whether serum levels of estradiol affect reproductive outcomes of normoresponder women undergoing fresh embryo transfer (ET) versus frozen-thawed ET (FET). MATERIAL AND METHODS: Two hundred fifty-five normoresponder women underwent fresh ET in their first or second in vitro fertilization cycle. Ninety-two women with negative pregnacy test results underwent FET. Clinical and ongoing pregnancy rates, implantation, and live birth rates of women undergoing fresh ET versus FET were compared...
March 15, 2017: Journal of the Turkish German Gynecological Association
https://www.readbyqxmd.com/read/28504476/thirty-years-of-interferon-tau-research-past-present-and-future-perspective
#7
REVIEW
Kazuhiko Imakawa, Rulan Bai, Keigo Nakamura, Kazuya Kusama
The year 2017 marks the 30th year since the discovery was made of amino acid and complementary DNA sequences of ovine trophoblast protein-1 (oTP-1), later renamed as interferon-tau (IFNτ). Ovine TP-1 was originally found as a secretory product of sheep conceptuses that rescues maternal corpus luteum (CL) and in fact, the uterine infusion of oTP-1 extended inter-estrous intervals. Finding this signaling molecule as an IFN-like sequence was surprising to the scientific community in reproduction because a homologous molecule in humans possesses anti-viral and anti-prolific activity and is often used in human medicines...
May 15, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28502859/the-significance-of-estradiol-metabolites-in-human-corpus-luteum-physiology
#8
REVIEW
Luigi Devoto, Soledad Henríquez, Paulina Kohen, Jerome F Strauss
The human corpus luteum (CL) is a temporary endocrine gland derived from the ovulated follicle. Its formation and limited lifespan is critical for steroid hormone production required to support menstrual cyclicity, endometrial receptivity for successful implantation, and the maintenance of early pregnancy. Endocrine and paracrine-autocrine molecular mechanisms associated with progesterone production throughout the luteal phase are critical for the development, maintenance, regression, and rescue by hCG which sustains CL function into early pregnancy...
May 11, 2017: Steroids
https://www.readbyqxmd.com/read/28502186/efectiveness-of-dydrogesterone-17-oh-progesterone-and-micronized-progesterone-in-prevention-of-preterm-birth-in-women-with-a-short-cervix
#9
Olga Anatolievna Pustotina
OBJECTIVE: to compare the efficacy of dydrogesterone, 17-OH progesterone (17OHP) and oral or vaginal micronized progesterone with cerclage for the prevention of preterm birth in women with a short cervix. METHODS: The study included 95 women with singleton gestation and cervical length (CL)≤ 25 mm. Among these, 35 women were asymptomatic at 15-24 weeks and 60 had symptoms of threatened late miscarriage (LM) or preterm delivery (PD). Patients were randomized to receive dydrogesterone, 17OHP or oral/vaginal micronized progesterone; after one week of therapy 15 women underwent cerclage...
May 14, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28501869/intramuscular-versus-vaginal-progesterone-administration-in-medicated-frozen-embryo-transfer-cycles-a-randomized-clinical-trial-assessing-sub-endometrial-contractions
#10
Anat Hershko Klement, Nivin Samara, Amir Weintraub, Frederic Mitri, Yaakov Bentov, Paul Chang, Dan Nayot, Robert F Casper
OBJECTIVE: The study aimed to assess whether sub-endometrial contractility is reduced by the use of intramuscular (IM) progesterone. DESIGN: This is a randomized clinical trial. Patients assigned to a medicated day 5 frozen embryo transfer (FET) were randomly allocated to "vaginal progesterone" or "IM progesterone": patients randomized to the vaginal arm were treated with 200 mg micronized progesterone 3 times daily while patients randomized into the IM progesterone arm were treated with a single daily injection of 50 mg progesterone in oil...
May 13, 2017: Gynecologic and Obstetric Investigation
https://www.readbyqxmd.com/read/28494682/operative-transvaginal-hydrolaparoscopy-improve-ovulation-rate-after-clomiphene-failure-in-polycystic-ovary-syndrome
#11
Pierluigi Giampaolino, Nicoletta De Rosa, Luigi Della Corte, Ilaria Morra, Antonio Mercorio, Carmine Nappi, Giuseppe Bifulco
Aim of our study was to assess the ovulation rate, with mid-luteal progesterone level and ultrasound follicles monitoring, in PCOS CC-resistant patients undergone transvaginal hydrolaparoscopy ovarian drilling. A prospective observational study was carried out in 123 PCOS, infertile, CC-resistant patients who undergone THL ovarian drilling. Each woman was evaluated by hormonal measurement, and ultrasound evaluation during 6 months follow-up. Progesterone serum levels were assessed on days 20-24 of the cycle after surgical treatment...
May 11, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28494594/caring-for-baby-s-teeth-starts-before-birth
#12
L Paglia
Care for a child's teeth and gums can start even before the baby is born. Pregnancy causes many hormonal changes, among these the rise of estrogen and progesterone increases the risk of developing oral health problems, like gingivitis and periodontitis.The presence of maternal periodontal diseases and active infections has been associated with adverse pregnancy outcomes, such as preterm birth, preeclampsia, gestational diabetes and foetal loss. Therefore, it is important to educate pregnant women about their oral hygiene and the importance of taking care of their newborn's oral health...
March 2017: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28491062/a-kinetic-study-of-cd83-reveals-an-upregulation-and-higher-production-of-scd83-in-lymphocytes-from-pregnant-mice
#13
Katrin Regina Helene Packhäuser, Gleyder Roman-Sosa, Jens Ehrhardt, Diana Krüger, Marek Zygmunt, Damián Oscar Muzzio
For the normal development of pregnancy, a balance between immune tolerance and defense is crucial. However, the mechanisms mediating such a balance are not fully understood. CD83 is a transmembrane protein whose expression has been linked to anti-inflammatory functions of T and B cells. The soluble form of CD83, released by cleavage of the membrane-bound protein, has strong anti-inflammatory properties and was successfully tested in different mouse models. It is assumed that this molecule contributes to the establishment of immune tolerance...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28487952/expression-of-reproductive-hormone-receptors-and-contraction%C3%A2-associated-genes-in-porcine-uterus-during-the-estrous-cycle
#14
Sung-Min An, Sun Suk Kim, Jun Kim, Mee-Na Park, Jae-Eon Lee, Seong Keun Cho, Kyu-Sup Lee, Beum-Soo An
Contraction of uterus tissue frequently occurs throughout the estrous cycle and is regulated by several endogenous factors, including estradiol, progesterone, luteinizing hormone, follicle‑stimulating hormone, oxytocin (OXT) and contraction‑associated proteins (CAPs). Contraction activity of uterus tissue according to the estrous cycle is important, due to the fact that it is directly associated with balanced implantation and stable pregnancy. However, few studies have examined the mechanism of uterus contraction activity in a porcine model...
June 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28484835/effectiveness-of-the-contemporary-treatment-of-preterm-labor-a-comparison-with-a-historical-cohort
#15
Philipp Wagner, Jiri Sonek, Harald Abele, Loefler Sarah, Markus Hoopmann, Sara Brucker, Qinging Wu, Karl Oliver Kagan
OBJECTIVE: To compare the effectiveness of contemporary treatment of preterm labor to a historical cohort. STUDY DESIGN: Retrospective matched case-control study to compare the outcomes of patients that were treated for preterm labor at the University Hospital of Tuebingen, Germany in 2014/2015 (current treatment cohort) and 2006/2007 (historical cohort). The study included women with singleton gestations who were admitted with the diagnosis of preterm labor between 24 + 0 and 34 + 0 weeks' gestation and a cervical length of ≤15 mm...
May 8, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28482188/pregnancy-favors-the-expansion-of-circulating-functional-follicular-helper-t-cells
#16
Clarice Monteiro, Taissa M Kasahara, José Roberto Castro, Priscila M Sacramento, Joana Hygino, Newton Centurião, Tatiane Cassano, Lana M Ferreira Lopes, Simone Leite, Vander Guimarães Silva, Sudhir Gupta, Cleonice A M Bento
Pregnancy favors antibody production, and some evidence has suggested a direct effect of estrogen on B cells. The impact of pregnancy on circulating follicular helper T (TFH) cells, typically identified by the expression of CD45RO and CXCR5, has not been previously investigated. Here, the percentage of TFH cells, co-expressing or not PD-1, ICOS, or CXCR3 markers was significantly higher in pregnant women (PW) as compared with non-pregnant ones (nPW). Furthermore, the percentage of CXCR3(+) TFH cells able to produce IL-6, IL-21, and IL-10 was significantly higher in PW than nPW...
April 27, 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/28472791/microrna-873-is-a-potential-serum-biomarker-for-the-detection-of-ectopic-pregnancy
#17
Qi Lu, Qi Yan, Fengying Xu, Yuhong Li, Wenxia Zhao, Chunzhu Wu, Yudong Wang, Xiao Lang
BACKGROUND: Ectopic pregnancy (EP) refers to the implantation of the zygote outside the uterine cavity. In clinical practice, the diagnosis of EP relies on a combination of ultrasound findings and serum human chorionic gonadotrophin (hCG) measurements. However, the need for serial hCG measurements increases the risk of tubal rupture and death, underscoring the need to identify biomarkers for the early detection of EP. METHODS: The serum concentrations of 21 microRNAs (miRNAs) associated with pregnancy or with known placental expression, as well as serum hCG and progesterone levels were analyzed 36 patients with viable intrauterine pregnancy (VIP), 30 patients with spontaneous abortion (SA), and 34 patients with EP using specific assay kits and reverse transcription PCR...
May 4, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28462399/can-letrozole-plus-hmg-protocol-improve-pregnancy-outcomes-in-frozen-thawed-embryo-transfer-an-rct
#18
Ashraf Aleyasin, Marzieh Aghahosseini, Leili Safdarian, Maryam Noorzadeh, Parvin Fallahi, Zahra Rezaeian, Sedighe Hoseinimosa
BACKGROUND: There are different methods in endometrial preparation for frozen-thawed embryo transfer (FET). OBJECTIVE: The purpose of this study was to compare the live birth rate in the artificial FET protocol (estradiol/ progesterone with GnRH-agonist) with stimulated cycle FET protocol (letrozole plus HMG). MATERIALS AND METHODS: This randomized clinical trial included 100 women (18-42 years) randomly assigned to two groups based on Bernoulli distribution...
February 2017: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/28460675/evaluation-of-shortened-timed-ai-protocols-for-resynchronization-of-ovulation-in-multiparous-holstein-dairy-cows
#19
T Motavalli, E Dirandeh, H Deldar, M G Colazo
The objective was to compare three shortened protocols for timed-AI (TAI) on ovarian responses, pregnancy per AI (P/AI) and pregnancy loss after resynchronization of ovulation in multiparous Holstein cows. Cows (n = 370), at one location, were randomly assigned at non-pregnancy diagnosis (approximately 32 d after AI) to one of three ovulation resynchronization protocols. Cows in the OS group received a 5-d Ovsynch [100 μg GnRH on Day 1, 500 μg cloprostenol (PGF) on Days 6 and 7, GnRH on Day 8.5 and TAI on Day 9 (16 h after second GnRH)]...
June 2017: Theriogenology
https://www.readbyqxmd.com/read/28459828/individual-luteolysis-pattern-after-gnrh-agonist-trigger-for-final-oocyte-maturation
#20
Barbara Lawrenz, Nicolas Garrido, Suzan Samir, Francisco Ruiz, Laura Melado, Human M Fatemi
Final oocyte maturation using GnRH-agonist trigger in a GnRH-antagonist protocol is increasingly common, as ovarian hyperstimulation syndrome is almost completely avoided. However, this approach might lead to reduced pregnancy rates due to severe luteolysis. This proof of concept study evaluated the extend of luteolysis by measuring progesterone levels 48 hours after oocyte retrieval in 51 patients, who received GnRH-agonist trigger for final oocyte maturation in a GnRH-antagonist protocol due to the risk of ovarian hyperstimulation syndrome...
2017: PloS One
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