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Progesterone in pregnancy

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https://www.readbyqxmd.com/read/28735106/color-doppler-signals-of-blood-flow-in-the-corpus-luteum-and-vascular-perfusion-index-for-ovarian-and-uterine-arteries-during-expansion-of-the-allantochorion-in-bos-taurus-heifers
#1
F L V Pinaffi, E R Araujo, L A Silva, O J Ginther
Hemodynamics of the CL and each main uterine artery during expansion of the allantochorion from the ipsilateral side (CL side) to the contralateral side were studied in heifers (n = 8 nonbred, 9 pregnant). Progesterone concentration, vascular perfusion index for each uterine artery (by spectral ultrasonography), extent of blood flow in the CL (percentage of CL tissue with color-Doppler signals of blood flow), and intrauterine location of the expanding allantochorion (by gray-scale ultrasonic imaging) were determined daily from Days 14-60 (Day 0 = ovulation)...
July 12, 2017: Theriogenology
https://www.readbyqxmd.com/read/28734228/effect-of-education-on-ability-of-ai-professionals-and-herd-owner-inseminators-to-detect-cows-not-in-oestrus-and-its-relation-with-progesterone-concentration-on-day-of-re-insemination
#2
K Vartia, J Taponen, J Heikkinen, H Lindeberg
The effect of training background of persons performing artificial insemination (AI) (herd-owner inseminators (OWNER), AI technicians (AI-T), and fertility consultants (FC)) on pregnancy rate and their ability to detect cows not in oestrus were studied. A total of 1584 re-AI occasions on 754 dairy farms were included. Milk samples for progesterone (P4) analysis in all cases were collected, as were data on the herd, previous breeding attempts, oestrous signs, uterine tone, slipperiness of cervix, and co-operation of the cow...
July 13, 2017: Theriogenology
https://www.readbyqxmd.com/read/28733110/a-role-of-alpha-tocopherol-and-phylloquinone-in-the-modulation-of-uterine-contractility-and-reproductive-function-in-mouse-models
#3
Enitome E Bafor, Victory O Ebidame, Uloma B Elvis-Offiah, Osemelomen Omoruyi, Gerald I Eze, Osamwonyi Igbinuwen, Kadiri P Braimoh
BACKGROUND AND AIM: Alpha-tocopherol has been implicated in reproduction processes, and deficiency of phylloquinone has been associated with serious complications in pregnancy. This study was therefore aimed at investigating the effects of phylloquinone and alpha-tocopherol on uterine contractility and female reproductive function using mouse models. MATERIALS AND METHODS: Both in vivo and ex vivo animal models were employed and designed to assess changes on uterine contractility and reproductive functions in the non-pregnant uterus...
May 30, 2017: Medicina
https://www.readbyqxmd.com/read/28732252/update-on-medical-treatment-of-uterine-fibroids
#4
REVIEW
Fátima Faustino, Margarida Martinho, José Reis, Fernanda Águas
OBJECTIVES: In this review paper, the pros and cons of the available pharmacological options for the treatment of uterine fibroids are explored, including oral progestogens, levonorgestrel intra-uterine device, gonadotropin-releasing hormone analogs and progesterone receptor modulators with an emphasis on ulipristal acetate. STUDY DESIGN: The choice of the appropriate therapeutic approach for uterine fibroids depends on several factors, including women's age, parity, childbearing aspirations and wish to preserve fertility, extent and severity of symptoms, size, number and location of myomas, risk of malignancy and proximity to menopause...
July 8, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28730656/spontaneous-pregnancy-during-ulipristal-acetate-treatment-of-giant-uterine-leiomyoma
#5
Z Hrgovic, D Habek, J Cerkez Habek, I Hrgovic, S Jerkovic Gulin, D Gulin
WHAT IS KNOWN AND OBJECTIVE: Ulipristal acetate, a progesterone receptor modulator, pharmacologically inhibits endometrial proliferation and thereby prevents pregnancy. It is primarily used as emergency contraception, but also for the treatment of fibroids in women of reproductive age. There have been no published cases of pregnancy, while on therapy with ulipristal acetate. CASE DESCRIPTION: In this article, we present a case report of spontaneous pregnancy during ulipristal acetate therapy...
July 21, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/28730256/advanced-metastatic-breast-cancer-in-pregnancy-the-imperative-of-physical-breast-examination-in-pregnancy
#6
Anca Angela Simionescu, Claudia Valentina Georgescu, Mirela Corina Ghiluşi, Sabrina Ioana Stoica, Mircea Dragoş Median
Breast cancer is the most frequent cancer diagnosed among women; its association with pregnancy is not encountered. As childbearing age is increasing, the diagnosis of breast cancer associated pregnancy tends to be more often than years ago. Here we report a case of a 37-year-old patient, gravida 7, para 7, diagnosed at 30 weeks gestation with metastatic breast cancer. The patient presented to hospital due to an altered performance status. Obstetrical evaluation was within normal range. A metastatic infiltrating breast cancer poorly differentiated (G3) with satellite skin lesions (T4b), ipsilateral axillary and supraclavicular lymph nodes (N3), lung metastasis bilateral with pleural effusion and hepatic metastasis (M1), were diagnosed...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28729911/vaginal-progesterone-to-reduce-preterm-birth-among-hiv-infected-pregnant-women-in-zambia-a-feasibility-study-protocol
#7
Joan T Price, Katie R Mollan, Nurain M Fuseini, Bethany L Freeman, Helen B Mulenga, Amanda H Corbett, Bellington Vwalika, Jeffrey S A Stringer
BACKGROUND: Women infected with HIV have a risk of preterm birth (PTB) that is twice that among uninfected women, and treatment with antiretroviral therapy (ART) may further increase this risk. Progesterone supplementation reduces the risk of preterm delivery in women who have a shortened cervix in the midtrimester. We propose to study the feasibility of a trial of vaginal progesterone (VP) to prevent PTB among HIV-infected women receiving ART in pregnancy. Given low adherence among women self-administering vaginal study product in recent microbicide trials, we plan to investigate whether adequate adherence to VP can be achieved prior to launching a full-scale efficacy trial...
2018: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/28724173/a-comparative-study-between-myo-inositol-and-metformin-in-the-treatment-of-insulin-resistant-women
#8
K Nas, L Tűű
OBJECTIVE: Insulin resistance (IR) is a common disorder, which can impair female fertility and is characterized by phenotypic heterogeneity. Life-style treatment and insulin sensitizers are commonly used in the management of women with IR and consequent hyperinsulinemia, in order to restore the normal endocrinological and clinical parameters. Metformin (MET) is considered one of the first approaches to this pathology but new evidences are showing promising results using myo-inositol (MYO) in the management of this pathology...
June 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28720108/early-pregnancy-sex-steroids-during-primiparous-pregnancies-and-maternal-breast-cancer-a-nested-case-control-study-in-the-northern-sweden-maternity-cohort
#9
Renée T Fortner, Eglé Tolockiene, Helena Schock, Husam Oda, Hans-Åke Lakso, Göran Hallmans, Rudolf Kaaks, Paolo Toniolo, Anne Zeleniuch-Jacquotte, Kjell Grankvist, Eva Lundin
BACKGROUND: Pregnancy and parity are associated with subsequent breast cancer risk. Experimental and epidemiologic data suggest a role for pregnancy sex steroid hormones. METHODS: We conducted a nested case-control study in the Northern Sweden Maternity Cohort (1975-2007). Eligible women had provided a blood sample in the first 20 weeks of gestation during a primiparous pregnancy leading to a term delivery. The current study includes 223 cases and 417 matched controls (matching factors: age at and date of blood collection)...
July 18, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28716426/hormone-dependent-uterine-epithelial-stromal-communication-for-pregnancy-support
#10
Xiaoqiu Wang, San-Pin Wu, Francesco J DeMayo
Human fertility is a relatively inefficient process. Despite the presence of visibly healthy embryos, 30% of pregnancies generated by assisted reproductive technology (ART) fail before the second trimester. The uterine microenvironment plays a critical role in establishing and maintaining a successful pregnancy that requires coordinated communication between the epithelial and stromal cells of the endometrium. The epithelial cells must cease proliferation and become permissive for the conceptus (embryo and associated extraembryonic membranes), while the stromal cells undergoes mesenchymal-to-epithelioid transformation to form the decidua in support of subsequent embryo development...
July 6, 2017: Placenta
https://www.readbyqxmd.com/read/28715660/elevated-basal-progesterone-levels-are-associated-with-increased-preovulatory-progesterone-rise-but-not-with-higher-pregnancy-rates-in-icsi-cycles-with-gnrh-antagonists
#11
Mehmet Firat Mutlu, Mehmet Erdem, Ilknur Mutlu, Berk Bulut, Ahmet Erdem
OBJECTIVE: To ascertain the association between basal progesterone (P) levels and the occurrence of preovulatory progesterone rise (PPR) and clinical pregnancy rates (CPRs) in ICSI cycles with GnRH antagonists. STUDY DESIGN: Serum P levels of 464 patients were measured on day 2 and day of hCG of cycles. Cycles with basal P levels>1.6ng/mL were cancelled. All embryos were cryopreserved in cycles with P levels≥2ng/mL on the day of hCG. The primary outcome measures were the incidence of PPR (P>1...
June 29, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28708875/predictive-value-of-serum-progesterone-level-on-%C3%AE-hcg-check-day-in-women-with-previous-repeated-miscarriages-after-in-vitro-fertilization
#12
Yong Jin Kim, Jung Ho Shin, Jun Yong Hur, Hoon Kim, Seung-Yup Ku, Chang Suk Suh
OBJECTIVE: To evaluate the predictive value of the progesterone level at the beta-human chorionic gonadotropin (β-hCG) check day for ongoing pregnancy maintenance in in vitro fertilization (IVF) cycles in women with previous unexplained repeated miscarriages. MATERIALS AND METHODS: One hundred and forty-eight women, with visible gestational sac after IVF, were recruited in this observational study. All subjects had unexplained recurrent miscarriages in more than two previous IVF cycles...
2017: PloS One
https://www.readbyqxmd.com/read/28708535/comparison-of-estrus-synchronization-by-controlled-internal-drug-release-device-cidr-and-adhesive-transdermal-progestin-patch-in-postpartum-beef-cows
#13
Jatuporn Kajaysri, Chaiwat Chumchoung, Supphathat Wutthiwitthayaphong, Wanvipa Suthikrai, Praphai Sangkamanee
Estrous synchronization with progesterone based protocols has been essentially used in cattle industry. Although intravaginal devices have been commonly used, this technique may induce vaginitis. This study aimed at examining the efficiency of novel transdermal progestin patch on follicle development and comparing the progestin patch versus CIDR device on estrous synchronization, complication at treated site and pregnancy in beef cattle. In experiment 1, seven beef cows were treated with an adhesive transdermal progestin patch on the ventral surface of the proximal part of the tail for 7 days...
June 6, 2017: Theriogenology
https://www.readbyqxmd.com/read/28708531/relationships-among-early-postpartum-luteal-activity-parity-and-insemination-outcomes-based-on-in-line-milk-progesterone-profiles-in-canadian-holstein-cows
#14
Tony C Bruinjé, Marcos G Colazo, Mohanathas Gobikrushanth, Divakar J Ambrose
The objectives of this retrospective study were to use in-line milk progesterone (mP4) data to investigate relationships of (1) commencement of luteal activity (CLA), and (2) luteal phase (LP) length and frequency preceding first postpartum AI, with parity and AI outcomes in Canadian Holstein cows. Starting 21 ± 1 days postpartum (DPP), levels of mP4 were assessed every 2.2 ± 2.0 d through an automated in-line milk analysis system (Herd Navigator™, DeLaval International, Tumba, Sweden) until ∼55 d after first or second AI in 748 Holstein cows from two herds...
May 27, 2017: Theriogenology
https://www.readbyqxmd.com/read/28708526/progesterone-concentration-and-lambing-rate-of-karakul-ewes-treated-with-prostaglandin-and-gnrh-combined-with-the-ram-effect-during-breeding-and-non-breeding-seasons
#15
A Mirzaei, M Mohebbi-Fani, A Omidi, A Boostani, S Nazifi, H R Mahmoodian-Fard, M Chahardahcherik
The combination of ram effect with two injections of PGF2α 10-days apart and the same protocol plus an additional injection of GnRH prior to the first injection of PGF2α were examined in Karakul ewes during breeding and non-breeding seasons, respectively. Plasma progesterone (P4) concentrations (to detect the presence of active corpus luteum), twin lambing, litter size and synchronization of lambing were evaluated. In each study 70 ewes (2-4 years old) were divided to a treatment (n = 40) and a control (n = 30) group...
June 9, 2017: Theriogenology
https://www.readbyqxmd.com/read/28708519/relationships-between-uterine-health-and-metabolism-in-dairy-cows-with-different-dry-period-lengths
#16
J Chen, N M Soede, G J Remmelink, R M Bruckmaier, B Kemp, A T M van Knegsel
The first objective of this study was to evaluate effects of dry period (DP) length and dietary energy source on ovarian activity, uterine health status, pregnancy rate, and days open in dairy cows in the second subsequent lactation after implementation of DP length and dietary treatments. The second objective was to determine relationships of uterine health status with ovarian activity, milk yield, energy balance (EB), and metabolic status in dairy cows. Holstein-Friesian dairy cows (n = 167) were assigned randomly to 1 of 3 DP lengths (0-, 30-, or 60-d) and 1 of 2 early lactation diets (glucogenic or lipogenic diet) for 2 subsequent lactations...
June 13, 2017: Theriogenology
https://www.readbyqxmd.com/read/28708503/effect-of-dietary-supplementation-of-omega-3-polyunsaturated-fatty-acid-pufa-rich-fish-oil-on-reproductive-performance-of-the-goat-capra-hircus
#17
Ajit Singh Mahla, Ravjibhai K Chaudhari, Atul Kumar Verma, Amit Kumar Singh, Sanjay Kumar Singh, Gyanendra Singh, Mihir Sarkar, Narayan Dutta, Harendra Kumar, Narayanan Krishnaswamy
Dietary supplementation of n-3 PUFA decreases the luteolytic PGF2α and improves the pregnancy rate in the dairy cow. However, its effect in the goat is not known. Accordingly, we studied the effect of supplementation of n-3 PUFA rich Fish oil (FO) on different reproductive events in the goat. Cycling goats (n = 30) were divided into two equal groups and fed an isocaloric and isonitrogenous diet supplemented with either FO (TRT; n = 15) or palm oil (PO) (CON; n = 15) @ 0.6 mL/kg body weight for 72 days during the breeding season...
May 26, 2017: Theriogenology
https://www.readbyqxmd.com/read/28708499/split-time-artificial-insemination-in-beef-cattle-iii-comparing-fixed-time-artificial-insemination-to-split-time-artificial-insemination-with-delayed-administration-of-gnrh-in-postpartum-cows
#18
B E Bishop, J M Thomas, J M Abel, S E Poock, M R Ellersieck, M F Smith, D J Patterson
This experiment was designed to compare pregnancy rates in postpartum beef cows following split-time (STAI) or fixed-time (FTAI) artificial insemination. Estrus was synchronized for 671 cows at seven locations following administration of the 7-d CO-Synch + CIDR protocol (100 μg GnRH + CIDR insert [1.38 g progesterone] on d 0; 25 mg prostaglandin F2α [PG] at CIDR removal on d 7). Cows were assigned to treatments that were balanced across locations based on age, body condition score, and days postpartum at the time treatments were initiated...
April 29, 2017: Theriogenology
https://www.readbyqxmd.com/read/28707771/effect-of-vaginal-progesterone-in-tocolytic-therapy-during-preterm-labor-in-twin-pregnancies-secondary-analysis-of-a-placebo-controlled-randomized-trial
#19
Wagner R Hernandez, Rossana P V Francisco, Roberto E Bittar, Ursula T Gomez, Marcelo Zugaib, Maria L Brizot
AIM: Our aim was to investigate the effect of the prophylactic use of vaginal progesterone on the latency period from the initiation of tocolytic therapy to delivery in twin pregnancies with preterm labor. METHODS: This study was a secondary analysis of a randomized, double-blind, placebo-controlled trial of twin pregnancies in mothers who were exposed to a 200 mg vaginal progesterone ovule or a placebo ovule daily from 18 to 34 weeks gestation. Patients who were administered tocolysis with Atosiban because of preterm labor were included...
July 14, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28702979/use-of-platelet-rich-plasma-in-human-infertility
#20
G V L Colombo, V Fanton, D Sosa, E Criado Scholz, J Lotti, S E Aragona, T Lotti
Successful embryo implantation requires good quality embryo but also needs a receptive endometrium site. In our clinical practice, we daily verify that an adequate endometrial growth is reached for successful implantation. To understand whether platelet rich plasma (PRP) can improve endometrium thickness and performance, PRP treatment was carried out after at least three of the classic medical protocols currently in use had been unsuccessfully adopted. Eight patients with more than 3 cryo-transfers cancelled because of failure of endometrial growth, defined as endometrium less than 6 mm, with negative hysteroscopic screening for endometrial pathology, and with negative bacteriologic screening, before present and all previous treatment, were selected to undergo PRP treatment...
July 13, 2017: Journal of Biological Regulators and Homeostatic Agents
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