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Endometrial receptivity

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https://www.readbyqxmd.com/read/28324064/bmp7-induces-uterine-receptivity-and-blastocyst-attachment
#1
Diana Monsivais, Caterina Clementi, Jia Peng, Paul T Fullerton, Renata Prunskaite-Hyyryläinen, Seppo Vainio, Martin M Matzuk
In women, the window of implantation is limited to a brief two- to three- day period characterized by optimal levels of circulating ovarian hormones and a receptive endometrium. Although the window of implantation is assumed to occur 8-10 days after ovulation in women, molecular markers of endometrial receptivity are necessary to determine optimal timing prior to embryo transfer. Previous studies showed that members of the bone morphogenetic protein (BMP) family are expressed in the uterus necessary for female fertility; however, the role of BMP7 during implantation and in late gestation is not known...
January 17, 2017: Endocrinology
https://www.readbyqxmd.com/read/28322538/controlled-ovarian-stimulation-and-triggers-in-in-vitro-fertilization-protocol-personalization-key-to-optimize-outcomes
#2
Jacqueline Y Maher, Mindy S Christianson
The past four decades have delivered many advancements to improve in vitro fertilization (IVF) outcomes. These include a delicate balance of controlled ovarian hyperstimulation (COH) without causing ovarian hyperstimulation syndrome (OHSS), a safe oocyte retrieval, fertilization and embryo culture, endometrial growth and receptivity to promote implantation, and luteal support to maintain the pregnancy. Contemporary IVF practice includes both the classic COH protocols as well as protocols for poor responders and those for specific patient populations...
March 21, 2017: Minerva Endocrinologica
https://www.readbyqxmd.com/read/28293067/syndecan-1-acts-as-an-important-regulator-of-cxcl1-expression-and-cellular-interaction-of-human-endometrial-stromal-and-trophoblast-cells
#3
Dunja Maria Baston-Buest, Olga Altergot-Ahmad, Sarah Jean Pour, Jan-Steffen Krüssel, Udo Rudolf Markert, Tanja Natascha Fehm, Alexandra Petra Bielfeld
Successful implantation of the embryo into the human receptive endometrium is substantial for the establishment of a healthy pregnancy. This study focusses on the role of Syndecan-1 at the embryo-maternal interface, the multitasking coreceptor influencing ligand concentration, release and receptor presentation, and cellular morphology. CXC motif ligand 1, being involved in chemotaxis and angiogenesis during implantation, is of special interest as a ligand of Syndecan-1. Human endometrial stromal cells with and without Syndecan-1 knock-down were decidualized and treated with specific inhibitors to evaluate signaling pathways regulating CXC ligand 1 expression...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28285568/cigarette-smoking-affects-uterine-receptivity-markers
#4
Gulcin Sahin Ersoy, Yuping Zhou, Hamdi İnan, Cuneyt E Taner, Emine Cosar, Hugh S Taylor
OBJECTIVE: Smoking negatively affects fertility and the rate of other endometrial diseases. To determine the effect of smoking on endometrial physiology, we evaluated 2 endometrial regulatory cytokines and receptivity markers, C-X-C motif chemokine ligand 12 (CXCL12) and fibroblast growth factor 2 (FGF2), both in vitro and in vivo. STUDY DESIGN: The human endometrial stromal cell line (HESC) and primary human endometrial stromal cells were treated with cigarette smoking extract (CSE) or with vehicle control...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28284179/research-on-the-expression-of-integrin-%C3%AE-3-and-leukaemia-inhibitory-factor-in-the-decidua-of-women-with-cesarean-scar-pregnancy
#5
Zhi-Da Qian, Yue Weng, Chun-Fen Wang, Li-Li Huang, Xiao-Ming Zhu
BACKGROUND: Cesarean scar pregnancy (CSP) is a late serious complication of cesarean section. There has been an increase in the incidence of CSP worldwide in recent years. It's a life-threatening condition because of the high risk of uncontrolled hemorrhage and uterine rupture. The mechanism of CSP is still unclear. The endometrial receptivity might be different in the cesarean scar between CSP and normal pregnancies. Endometrial expression of integrin β3 and LIF positively correlates with endometrial receptivity and embryo implantation...
March 11, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28284038/3d-and-4d-studies-from-human-reproduction-to-perinatal-medicine
#6
Sonal Panchal, Asim Kurjak, Chaitanya Nagori
Three-dimensional ultrasound (3D US) is a modality of choice for prenatal diagnosis of congenital malformations. But 3D-four-dimensional US(4D US) is of utmost importance also to achieve pregnancy. 3D US plays an important role for diagnosis of PCO, to assess ovarian reserve and response and thus to decide optimum stimulation protocols. It adds to the information on follicular maturity and endometrial receptivity, thus improving the chances to achieve pregnancy for patients under treatment for fertility. 3D hystero-contrast-salpingography (HyCoSy) has also proved itself to be one of the best modalities for assessment of tubal patency...
March 11, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28283674/endometrial-transcriptome-in-recurrent-miscarriage-and-recurrent-implantation-failure
#7
Jin Huang, Hao Qin, Yihua Yang, Xiaoyan Chen, Jiamiao Zhang, Susan Laird, Chi Chiu Wang, Ting Fung Chan, Tin Chiu Li
The endometrium becomes receptive to the embryo only in the mid-luteal phase, but not other stages of the menstrual cycle. Endometrial factors play an important role in implantation. Women with recurrent miscarriage and recurrent implantation failure have both been reported to have altered expression of receptivity markers during the window of implantation. We aimed to compare the gene expression profiles of the endometrium in the window of implantation among women with unexplained recurrent implantation failures (RIF) and unexplained recurrent miscarriages (RM) by RNA sequencing (RNA-Seq)...
March 10, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28280798/endometrial-expression-of-%C3%AE-3-integrin-calcitonin-and-plexin-b1-in-the-window-of-implantation-in-women-with-unexplained-infertility
#8
Mehran Dorostghoal, Hamid-O-Allah Ghaffari, Nahid Shahbazian, Maryam Mirani
BACKGROUND: Endometrial receptivity plays a key role in the establishment of successful implantation and its impairment may contribute to subfertility and limit the assisted reproduction techniques (ART) success. OBJECTIVE: The aim of present study was to investigate endometrial receptivity in terms of β3 integrin, calcitonin and plexin-B1 expression in women with unexplained infertility. MATERIALS AND METHODS: We evaluated expression of β3 integrin, calcitonin and plexin-B1 through mRNA level measurement with real-time RT-PCR, in the endometrium of 16 infertile women with unexplained infertility and 10 fertile women...
January 2017: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/28277118/prostaglandin-e2-promotes-bewo-spheroids-implantation-in-rl95-2-cell-monolayers
#9
Xiaman Huang, Haizhi Liu, Ruiman Li
PURPOSE: Integrin αvβ3 (ITG αvβ3) participates in the process of implantation between the embryo and the endometrium. This study investigated the effects of prostaglandin E2 (PGE2) on endometrial receptivity and implantation efficiency of the embryo, and their possible mechanisms. METHODS: Quantitative real-time reverse transcription PCR (qRT-PCR) and western blotting were used to detect the changes in mRNA and protein levels of ITG αvβ3 in RL95-2 cells after administering PGE2...
March 1, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28242961/endometrial-polyps-and-subfertility
#10
REVIEW
Ali Al Chami, Ertan Saridogan
Endometrial polyps are frequently seen in subfertile women, and there is some evidence suggesting a detrimental effect on fertility. How polyps contribute to subfertility and pregnancy loss is uncertain and possible mechanisms are poorly understood. It may be related to mechanical interference with sperm transport, embryo implantation or through intrauterine inflammation or altered production of endometrial receptivity factors. Different diagnostic modalities such as two- or three-dimensional transvaginal ultrasound, saline infusion sonography or hysteroscopy are commonly used to evaluate endometrial polyps with good detection rates...
February 2017: Journal of Obstetrics and Gynaecology of India
https://www.readbyqxmd.com/read/28239559/gene-profiling-the-window-of-implantation-microarray-analyses-from-human-and-rodent-models
#11
Jennifer L Herington, Yan Guo, Jeff Reese, Bibhash C Paria
Poor uterine receptivity leads to implantation defects or failure. Identification of uterine molecules crucial to uterine receptivity and/or embryo implantation provides the opportunity to design a diagnostic screening toolkit for uterine receptivity or targeted drug discovery for treating implantation-based infertility. In this regard, gene-profiling studies performed in humans and rodents have identified numerous genes involved in the transcriptional regulation of uterine receptivity and embryo implantation...
December 2016: J Reprod Health Med
https://www.readbyqxmd.com/read/28237325/the-effect-of-lysophosphatidic-acid-together-with-interferon-tau-on-the-global-transcriptomic-profile-in-bovine-endometrial-cells
#12
Dorota Boruszewska, Ilona Kowalczyk-Zieba, Emilia Sinderewicz, Katarzyna Grycmacher, Joanna Staszkiewicz, Izabela Woclawek-Potocka
In cows, lysophosphatidic acid (LPA), which acts in an auto/paracrine manner, serves as a luteotropic factor during early pregnancy by stimulating progesterone and prostaglandin E2 secretion, thus protecting the bovine corpus luteum and early embryo development. Our hypothesis was that LPA exerted some local effects on the bovine endometrium prior to early embryo-maternal interactions and that interferon tau (IFNτ), the pregnancy recognition signal, modulated this action. In the present study, we applied an in vitro model involving whole-transcriptomic profiling to examine the effects of LPA on gene expression in bovine endometrial cells...
April 1, 2017: Theriogenology
https://www.readbyqxmd.com/read/28229988/endometrial-microrna-signature-during-the-window-of-implantation-changed-in-patients-with-repeated-implantation-failure
#13
Cheng Shi, Huan Shen, Li-Juan Fan, Jing Guan, Xin-Bang Zheng, Xi Chen, Rong Liang, Xiao-Wei Zhang, Qing-Hua Cui, Kun-Kun Sun, Zhu-Ran Zhao, Hong-Jing Han
BACKGROUND: At present, a diagnostic tool with high specificity for impaired endometrial receptivity, which may lead to implantation failure, remains to be developed. We aimed to assess the different endometrial microRNA (miRNA) signatures for impaired endometrial receptivity by microarray analysis. METHODS: A total of 12 repeated implantation failure (RIF) patients and 10 infertile patients, who conceived and delivered after one embryo transfer attempt, were recruited as RIF and control groups, respectively...
March 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28224680/aberrant-expressions-of-endometrial-id3-and-ctla-4-are-associated-with-unexplained-repeated-implantation-failure-and-recurrent-miscarriage
#14
Jin-Li Ding, Liang-Hui Diao, Tai-Lang Yin, Chun-Yu Huang, Biao Yin, Cong Chen, Yi Zhang, Jie Li, Yan-Xiang Cheng, Yong Zeng, Jing Yang
Inhibitor of DNA-binding protein 3 (Id3) is required for tumor angiogenesis and regulatory T-cell generation. However, the involvement of Id3 in unexplained repeated implantation failure (RIF) and recurrent miscarriage (RM) remains poorly understood. Immunohistochemistry was used to identify Id3, CD34, CTLA-4, and FOXP3 in the endometrium taken from the women with RIF (n=16), RM (n=16) and matched controls (n=8). The images were acquired and analyzed by the Vectra(®) automated quantitative pathology imaging system...
February 21, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28219738/ulipristal-acetate-administration-at-mid-cycle-changes-gene-expression-profiling-of-endometrial-biopsies-taken-during-the-receptive-period-of-the-human-menstrual-cycle
#15
Saúl Lira-Albarrán, Marta Durand, Marco F Larrea-Schiavon, Leticia González, David Barrera, Claudia Vega, Armando Gamboa-Domínguez, Claudia Rangel, Fernando Larrea
The aim of this study was to analyze the effects of mid-cycle administration of Ulipristal acetate (UPA) on gene expression in endometrial biopsies taken during the receptive phase of the cycle. Fourteen healthy menstruating women were studied during 14 control non-treated and 12 treated cycles with a single dose of 30 mg UPA when follicle diameter reached 20 mm. Ovulation in both treated and control cycles was confirmed by serial determinations of serum LH, progesterone and vaginal ultrasound. An endometrial biopsy at day LH+7, in each cycle, was taken for RNA microarray and qPCR analysis or prepared for histological and immunohistochemistry studies...
February 20, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28216918/spontaneous-conception-in-40-year-old-infertile-woman-with-polycystic-ovaries-after-complete-reversal-of-endometrial-intraepithelial-neoplasia-a-case-report-with-review-of-literature
#16
Swati Verma, Umesh N Jindal
We report a case of polycystic ovary syndrome and prolonged infertility in which endometrial intraepithelial neoplasia was reversed with high dose progesterone therapy. Spontaneous conception after failure of assisted reproductive techniques highlights the role of endometrial receptivity.
October 2016: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/28214855/fatty-acid-binding-protein-4-in-endometrial-epithelium-is-involved-in-embryonic-implantation
#17
Peng Wang, Qiuyuan Zhu, Huilian Peng, Mengkai Du, Minyue Dong, Hanzhi Wang
AIMS: To clarify the role of fatty acid-binding protein 4 (FABP4) of endometrial epithelial cell in the establishment and maintenance of pregnancy and the involvement in the pathogenesis of pregnancy loss. METHODS: The expression of FABP4 and uterine receptive factor (LIF, Integrin-β3 and Claudin 4) was determined by Western blotting or quantitative PCR. FABP4 siRNA was used to silence FABP4 while FABP4 inhibitor was used to inhibit the function of FABP4 in endometrial epithelial cell...
January 30, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28173742/ultrastructural-evaluation-of-eutopic-endometrium-of-infertile-women-with-and-without-endometriosis-during-the-window-of-implantation
#18
Michele G Da Broi, Carlos V Rocha, Filomena M Carvalho, Wellington P Martins, Rui A Ferriani, Paula A Navarro
Endometriosis is frequently associated with infertility and it is believed that the impairment of endometrial receptivity may be one of the mechanisms involved in this condition. Pinopodes are endometrial cycle-dependent structures that seem to participate in embryo implantation, and alterations in their presence and/or morphology during the window of implantation could affect the endometrial receptivity and be involved in the disease-related infertility. However, the data on pinopodes in these women are scarce and inconclusive...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28166983/maternal-recognition-of-pregnancy-and-implantation-are-not-associated-with-an-interferon-response-of-the-endometrium-to-the-presence-of-the-conceptus-in-dromedary-camel
#19
Ahmed Sabry Salah Abdoon, Corrine Giraud-Delville, Omaima Mohamed Kandil, Annelye Kerboeuf-Giraud, Caroline Eozénou, Anais Vitorino Carvalho, Skidmore Julian, Olivier Sandra
Maternal recognition of pregnancy (MRP) and implantation involve appropriate interactions between the elongating conceptus and the receptive endometrium that will condition development of the feto-placental unit to term. Molecular mechanisms that take place at the conceptus-endometrium interface during early pregnancy have been extensively investigated in domestic ungulates but they are still poorly understood in camelids including the dromedary camel (Camelus dromedarius), a domestic species with important economic and social roles in arid and semi-arid areas...
March 1, 2017: Theriogenology
https://www.readbyqxmd.com/read/28162937/effect-of-progesterone-elevation-in-follicular-phase-of-ivf-cycles-on-the-endometrial-receptivity
#20
REVIEW
B Lawrenz, H M Fatemi
The premature rise of progesterone during the late follicular phase in stimulated IVF cycles is a frequent event, and emerging evidence shows that premature progesterone rise does negatively affect the outcome of assisted reproductive techniques. The effect of elevated peripheral progesterone levels in the late follicular phase seems to be on the endometrium and the window of implantation, which may lead to asynchrony between the endometrium and the developing embryo. In stimulated cycles, endometrial maturation is advanced on the day of oocyte retrieval, and patients with a progesterone level above 1...
January 24, 2017: Reproductive Biomedicine Online
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