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Endometrial receptivity

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https://www.readbyqxmd.com/read/28229988/endometrial-microrna-signature-during-the-window-of-implantation-changed-in-patients-with-repeated-implantation-failure
#1
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...
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
#2
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
#3
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 17, 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
#4
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
#5
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
#6
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
#7
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
#8
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
https://www.readbyqxmd.com/read/28081359/benzoic-acid-enhances-embryo-implantation-through-lif-dependent-expression-of-integrin-%C3%AE-v%C3%AE-3-and-%C3%AE-v%C3%AE-5
#9
Hee-Jung Choi, Tae-Wook Chung, Mi-Ju Park, Hyung Sik Kim, Sooseong You, Myeong Soo Lee, Bo Sun Joo, Kyu Sup Lee, Keuk-Jun Kim, Gabbine Wee, Choong-Yong Kim, Cheorl-Ho Kim, Ki-Tae Ha
The embryo implantation is crucial step for successful pregnancy. Diverse factors including adhesion molecules, growth factors, and cytokines are important to the embryo implantation through improving endometrial receptivity. Benzoic acid (BA), a component of various plants, has been shown to have anti-fungal and anti-oxidant effects. However, the effect of BA on the embryo implantation remains unknown. Here, we showed the contribution of BA for the enhancement of endometrial receptivity through the leukemia inhibitory factor (LIF)-dependent increase of integrin αV, β3, and β5 expression...
January 12, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28065417/assisted-reproduction-technique-outcomes-for-fresh-versus-deferred-cryopreserved-day-2-embryo-transfer-a-retrospective-matched-cohort-study
#10
Mathilde Bourdon, Pietro Santulli, Vanessa Gayet, Chloé Maignien, Louis Marcellin, Khaled Pocate-Cheriet, Charles Chapron
Ovarian stimulation could adversely affect endometrial receptivity and consequently embryo implantation. One emerging strategy is the 'freeze-all' approach. Most studies have focused on blastocyst transfers, with limited research on day-2 deferred cryopreserved embryo transfers. In this large retrospective cohort study, outcomes were compared between day-2 fresh versus deferred cryopreserved embryo transfers. After matching by age and number of previous cycles, 325 cycles were included in the fresh group and 325 in the deferred cryopreserved embryo transfers group: no significant differences were found between groups in implantation (0...
December 19, 2016: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28062551/new-stimulation-regimens-endogenous-and-exogenous-progesterone-use-to-block-the-lh-surge-during-ovarian-stimulation-for-ivf
#11
REVIEW
Nathalie Massin
BACKGROUND: The advent of embryo and oocyte vitrification today gives reproductive specialists an opportunity to consider new strategies for improving the practice and results of IVF attempts. As the freezing of entire cohorts does not compromise, and may even improve, the results of IVF attempts, it is possible to break away from the standard sequence of stimulation-retrieval-transfer. The constraints associated with ovarian stimulation in relation to the potential harmful effects of the hormonal environment on endometrial receptivity can be avoided...
January 5, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28051269/disturbed-endometrial-nf-%C3%AE%C2%BAb-expression-in-women-with-recurrent-implantation-failure
#12
A Ersahin, M Acet, T Acet, Y Yavuz
OBJECTIVE: This study was planned to investigate whether expression levels of endometrial NF-κB1 and NFκB p65 changes in women with recurrent implantation failure (RIF). PATIENTS AND METHODS: The study group consists of 30 RIF patients having at least three previous failed IVF cycles. The control group comprises of 30 patients having one or no previous failed attempt. Endometrial samples were obtained from all participants during hysteroscopy at the late follicular phase...
December 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28050708/perceptions-of-weight-management-counseling-among-gynecologic-cancer-survivors-opportunities-for-enhancing-survivorship-care
#13
Alexandra K Zaleta, Robert Neff, Georgia A McCann, David M O'Malley, Kristen M Carpenter
PURPOSE: Oncology practice guidelines recommend incorporating weight management efforts throughout survivorship care; however, some oncologists raise concerns about implementing weight management counseling without damaging patient-provider relationships. This study explores cancer survivors' receptivity to weight management counseling and examines whether views of counseling effectiveness are associated with individual characteristics including health-related perceptions or psychological distress...
January 3, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28045093/increased-uterine-nk-cell-numbers-and-perforin-expression-during-the-implantation-phase-in-ivf-cycles-with-gnrh-antagonist-protocol
#14
Bufang Xu, Jingwen Wang, Lan Xia, Dan Zhang, Xian Wu, Aijun Zhang
GnRH antagonist negatively affects endometrial receptivity in in vitro fertilization (IVF) cycles, however, its underlying mechanism remains unclear. To explore its target molecules, we studied endometria in the window phase of fixed GnRH antagonist, low-dose flexible GnRH antagonist, GnRH agonist long protocol, and untreated control groups. There were 384 differentially expressed genes (DEGs) in the fixed antagonist group with greater than twofold expression change compared with the control group and 197 DEGs between the fixed antagonist and agonist groups, the majority of which were associated with the natural killer (NK) cell-mediated cytotoxicity pathway...
January 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28043656/review-embryo-and-endometrium-derived-exosomes-and-their-potential-role-in-assisted-reproductive-treatments-liquid-biopsies-for-endometrial-receptivity
#15
REVIEW
Hayden Homer, Gregory E Rice, Carlos Salomon
Multiple pregnancies resulting from the transfer of more than one embryo pose a significant threat to offspring born through Assisted Reproductive Treatments (ART). Transferring one embryo at a time would eliminate this risk. However, current approaches of identifying the highest quality embryo to transfer are either unreliable (e.g. morphology assessment) or highly invasive and potentially detrimental to embryos (e.g. PGD). Approaches for non-invasive embryo selection would be a major advancement that would increase efficiency and reduce both the costs and the risks associated with ART...
December 9, 2016: Placenta
https://www.readbyqxmd.com/read/28000026/pregnancy-outcomes-in-oocyte-recipients-with-fibroids-not-impinging-uterine-cavity
#16
Lena Sagi-Dain, Kamal Ojha, David Bider, Jacob Levron, Viktor Zinchenko, Sharon Walster, Shlomi Sagi, Martha Dirnfeld
OBJECTIVE: To examine the effects of fibroid uterus on pregnancy outcomes and endometrial features in ovum donation recipients. METHODS: Retrospective analysis of 744 ovum donation cycles was conducted in two private IVF centers between 2005 and 2012. All the recipients underwent transvaginal ultrasound examination, including endometrial thickness and grade measurements. Clinical pregnancy, spontaneous miscarriage, and live birth rates were regarded as the primary outcomes...
December 20, 2016: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/27959670/preattachment-embryos-of-domestic-animals-insights-into-development-and-paracrine-secretions
#17
Olivier Sandra, Gilles Charpigny, Laurent Galio, Isabelle Hue
In mammalian species, endometrial receptivity is driven by maternal factors independently of embryo signals. When pregnancy initiates, paracrine secretions of the preattachment embryo are essential both for maternal recognition and endometrium preparation for implantation and for coordinating development of embryonic and extraembryonic tissues of the conceptus. This review mainly focuses on domestic large animal species. We first illustrate the major steps of preattachment embryo development, including elongation in bovine, ovine, porcine, and equine species...
February 8, 2017: Annual Review of Animal Biosciences
https://www.readbyqxmd.com/read/27932897/effect-of-ovarian-endometrioma-on-uterine-and-ovarian-blood-flow-in-infertile-women
#18
Akmal El-Mazny, Ahmed Kamel, Wafaa Ramadan, Sherine Gad-Allah, Suzy Abdelaziz, Ahmed M Hussein
BACKGROUND: Angiogenesis has been found to be among the most important factors in the pathogenesis of endometriosis. The formation of new blood vessels is critical for the survival of newly implanted endometriotic foci. The use of 3-D power Doppler allows for the demonstration of the dynamic vascular changes that occur during the process of in vitro fertilization (IVF). We aimed to evaluate the effect of ovarian endometrioma on uterine and ovarian blood flow in infertile women. MATERIALS AND METHODS: In a case-control study at a university teaching hospital, 138 women with unilateral ovarian endometrioma scheduled for IVF were compared to 138 women with male-factor or unexplained infertility...
2016: International Journal of Women's Health
https://www.readbyqxmd.com/read/27927849/the-effect-of-serum-vitamin-d-levels-on-ovarian-reserve-markers-a-prospective-cross-sectional-study
#19
Panagiotis Drakopoulos, Arne van de Vijver, Valerie Schutyser, Stevan Milatovic, Ellen Anckaert, Johan Schiettecatte, Christophe Blockeel, Michel Camus, Herman Tournaye, Nikolaos P Polyzos
STUDY QUESTION: Is there any association between serum 25-OH vitamin D levels and ovarian reserve markers in infertile women? SUMMARY ANSWER: Vitamin D is not associated with the ovarian reserve markers, anti-mullerian hormone (AMH) and antral follicle count (AFC), in infertile women. WHAT IS KNOWN ALREADY: The mechanism underlying the relationship between vitamin D deficiency and reproduction is still unclear; however, evidence indicates a potential direct negative impact on ovarian function...
January 2017: Human Reproduction
https://www.readbyqxmd.com/read/27921090/the-effect-of-intrauterine-human-chorionic-gonadotropin-injection-before-embryo-transfer-on-the-implantation-and-pregnancy-rate-in-infertile-patients-a-randomized-clinical-trial
#20
Razieh Dehghani Firouzabadi, Sima Janati, Mohammad Hossein Razi
BACKGROUND: Implantation is one of the essential steps for the success of assisted reproductive techniques (ART). Their success depends on three main factors: embryo quality, endometrial receptivity (ER), and synchrony between embryo and endometrium. There are various factors that regulate the complex process of implantation. In this regard, one may refer to human chorionic gonadotropin (hCG) as the most important factor. OBJECTIVE: This study aims to investigate the effect of intrauterine hCG injection before embryo transfer (ET) on pregnancy outcome in infertile couples...
October 2016: International Journal of Reproductive Biomedicine (Yazd, Iran)
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