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Endometrial receptivity

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https://www.readbyqxmd.com/read/29928500/endometrial-response-to-conceptus-derived-estrogen-and-interleukin-1%C3%AE-at-the-time-of-implantation-in-pigs
#1
REVIEW
Hakhyun Ka, Heewon Seo, Yohan Choi, Inkyu Yoo, Jisoo Han
The establishment of pregnancy is a complex process that requires a well-coordinated interaction between the implanting conceptus and the maternal uterus. In pigs, the conceptus undergoes dramatic morphological and functional changes at the time of implantation and introduces various factors, including estrogens and cytokines, interleukin-1β2 (IL1B2), interferon-γ (IFNG), and IFN-δ (IFND), into the uterine lumen. In response to ovarian steroid hormones and conceptus-derived factors, the uterine endometrium becomes receptive to the implanting conceptus by changing its expression of cell adhesion molecules, secretory activity, and immune response...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29927435/-the-morphological-and-molecular-biological-signs-of-impaired-endometrial-receptivity-in-infertility-in-women-suffering-from-external-genital-endometriosis
#2
N B Paramonova, E A Kogan, A V Kolotovkina, O V Burmenskaya
OBJECTIVE: To study endometrial receptivity in infertile women with external genital endometriosis (EGE). SUBJECTS AND METHODS: Clinical, morphological, immunohistochemical, and molecular genetic examinations of endometrial aspiration pipelle biopsy specimens obtained on days 22-24 of the menstrual cycle from 94 infertile women with endometriosis: 50 women with Stage I-II EGE and 44 women with ovarian endometrioid cysts (OEC). A control group consisted of 54 women with tubal peritoneal factor of infertility (TPFI) and a successful attempt at IVF...
2018: Arkhiv Patologii
https://www.readbyqxmd.com/read/29922037/gnrh-agonist-improves-pregnancy-outcome-in-mice-with-induced-adenomyosis-by-restoring-endometrial-receptivity
#3
Song Guo, Zhichao Li, Li Yan, Yijuan Sun, Yun Feng
Purpose: Adenomyosis has a negative impact on female fertility. GnRH agonist treatment can improve pregnancy outcomes in women with adenomyosis. However, the impact of GnRH agonist upon endometrium receptivity of patients with adenomyosis remains unclear. In this study, endometrial receptivity and pregnancy outcome were investigated using a mouse model of adenomyosis. Materials and methods: Adenomyosis was induced in 12 female ICR mice, neonatally treated with tamoxifen, while another six female mice (control group) received solvent only...
2018: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/29901777/uterine-tppp3-plays-important-role-in-embryo-implantation-via-modulation-of-%C3%AE-catenin
#4
Vinay Shukla, Pooja Popli, Jyoti Bala Kaushal, Kanchan Gupta, Anila Dwivedi
Tubulin polymerization promoting protein 3 (TPPP3) is known to be expressed in the endometrium in a cyclic manner, its functional role in the physiology of implantation remains unknown. Here we demonstrate a novel function of TPPP3 during the window of implantation and in the establishment of pregnancy using a mouse model. The increased protein expression of TPPP3 and β-catenin during peri-implantation period i.e. D5 (receptive phase, 0800 h) was observed as compared to that on D1 (non-receptive phase, 0800 h)...
June 12, 2018: Biology of Reproduction
https://www.readbyqxmd.com/read/29897458/increased-aif-1-mediated-tnf-%C3%AE-expression-during-implantation-phase-in-ivf-cycles-with-gnrh-antagonist-protocol
#5
Bufang Xu, Mingjuan Zhou, Jingwen Wang, Dan Zhang, Feng Guo, Chenchen Si, Peter C K Leung, Aijun Zhang
STUDY QUESTION: Is allograft inflammatory factor-1 (AIF-1), a cytokine associated with inflammation and allograft rejection, aberrantly elevated in in vitro fertilization (IVF) cycles with gonadotropin-releasing hormone (GnRH) antagonist protocol with potential effects on endometrial receptivity? SUMMARY ANSWER: Our findings indicated AIF-1 is increased in IVF cycles with GnRH antagonist protocol and mediates greater TNF-α expression during implantation phase, which may be unfavorable for embryo implantation...
June 12, 2018: Human Reproduction
https://www.readbyqxmd.com/read/29889670/implantation-failure-of-endometrial-origin-what-is-new
#6
José Bellver, Carlos Simón
PURPOSE OF REVIEW: To review recent findings related to possible causes of recurrent implantation failure of endometrial origin in normal uterus. RECENT FINDINGS: Recent evidences suggest that in apparently normal endometria, RIF may associate with molecular and functional changes in the uterus such as abnormal endometrial microbiota, including the presence of chronic endometritis, poor synchronization between the blastocyst and endometrium, and/or excessive uterine peristalsis...
June 9, 2018: Current Opinion in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29872493/androgen-induced-alterations-in-endometrial-proteins-crucial-in-recurrent-miscarriages
#7
Tanzil Ur Rahman, Kamran Ullah, Meng-Xi Guo, Hai-Tao Pan, Juan Liu, Jun Ren, Lu-Yang Jin, Yu-Zhong Zhou, Yi Cheng, Jian-Zhong Sheng, He-Feng Huang
High androgen level impairs endometrial receptivity in women experiences the recurrent miscarriage. The mechanism of androgen actions on endometrium is still uncertain. We hypothesized that androgen has a direct effect on the endometrium in women with recurrent miscarriage. In the present study, we assess the impact of androgen (A2 ) at high concentration (10-7 M) on Ishikawa cells compared with the physiological concentration of androgen (10-9 M). To go into deeper analysis, we use global stable isotopes labeled profiling tactic using iTRAQ reagents, followed by 2D LC-MS/MS...
May 15, 2018: Oncotarget
https://www.readbyqxmd.com/read/29847457/endometrioma-fertility-and-assisted-reproductive-treatments-connecting-the-dots
#8
Gustavo N Cecchino, Juan A García-Velasco
PURPOSE OF REVIEW: Surgery has traditionally been the primary treatment option for endometriosis-related infertility of any phenotype. However, advances and refinements of assisted reproductive technologies (ART) permit a more conservative approach in many scenarios. This review summarizes the latest findings in the field of reproductive medicine, which have supported a paradigm shift towards more conservative management of ovarian endometrioma. RECENT FINDINGS: The presence of ovarian endometrioma per se is likely to impair ovarian reserve and alter ovarian functional anatomy...
May 29, 2018: Current Opinion in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29846687/expression-of-adhesion-and-extracellular-matrix-genes-in-human-blastocysts-upon-attachment-in-a-2d-co-culture-system
#9
A Aberkane, W Essahib, C Spits, C De Paepe, K Sermon, T Adriaenssens, S Mackens, H Tournaye, J J Brosens, Velde H Van de
STUDY QUESTION: What are the changes in human embryos, in terms of morphology and gene expression, upon attachment to endometrial epithelial cells? SUMMARY ANSWER: Apposition and adhesion of human blastocysts to endometrial epithelial cells are predominantly initiated at the embryonic pole and these steps are associated with changes in expression of adhesion and extracellular matrix (ECM) genes in the embryo. WHAT IS KNOWN ALREADY: Both human and murine embryos have been co-cultured with Ishikawa cells, although embryonic gene expression associated with attachment has not yet been investigated in an in-vitro implantation model...
May 26, 2018: Molecular Human Reproduction
https://www.readbyqxmd.com/read/29800603/circ-8073-regulates-cep55-by-sponging-mir-449a-to-promote-caprine-endometrial-epithelial-cells-proliferation-via-the-pi3k-akt-mtor-pathway
#10
Xiaorui Liu, Lei Zhang, Yuexia Liu, Jiuzeng Cui, Sicheng Che, Xiaopeng An, Yuxuan Song, Binyun Cao
Circular RNAs (circRNAs) are a large class of endogenous non-coding RNAs that function as regulators in various cells and tissues. Here, the function and mechanism of circRNA8073 (Circ-8073) on endometrial epithelial cells (EECs) and the development of endometrial receptivity were investigated in dairy goats. Circ-8073 could bind to and inhibit miR-449a activity. Circ-8073 binding to the target site of miR-449a had a negative feedback relationship. Centrosomal protein55 (CEP55) was a direct target gene of miR-449a, and Circ-8073 could increase the expression levels of CEP55 by sponging miR-449a in EECs in vitro...
May 22, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29778366/introduction-management-of-the-luteal-phase-in-assisted-reproductive-technology
#11
Georg Griesinger, David Meldrum
The increasing utilization of a gonadotropin-releasing hormone agonist ovulation trigger and the widespread use of artificial cycles for the transfer of frozen-thawed or donated embryos has renewed interest in the luteal phase in assisted reproductive technology. The "luteal phase defect" phenomenon is now understood as a continuum: there is less impairment with milder stimulation than with more intense ovarian stimulation, and less impairment after controlled ovarian stimulation and human chorionic gonadotropin ovulation triggering than after gonadotropin-releasing hormone agonist ovulation triggering, the latter being associated with rapid luteolysis...
May 2018: Fertility and Sterility
https://www.readbyqxmd.com/read/29763784/alterations-in-the-distribution-of-actin-and-its-binding-proteins-in-the-porcine-endometrium-during-early-pregnancy-possible-role-in-epithelial-remodeling-and-embryo-adhesion
#12
Beenu Moza Jalali, Pawel Likszo, Aneta Andronowska, Dariusz J Skarzynski
During early pregnancy, uterine epithelial cells undergo major transformations in their cytoskeleton that make the endometrium receptive for conceptus attachment. Actin binding proteins (ABPs) such as cofilin, gelsolin, and vinculin are involved in regulating actin polymerization, severing or crosslinking actin to integrins. However, whether ABPs are involved in epithelial remodeling or embryo adhesion in pigs is unknown. Therefore, the expression and distribution of these proteins were investigated in porcine endometrium on Days 10 and 13 (pre-implantation period), and 16 (attachment phase) of the estrous cycle or pregnancy...
May 8, 2018: Theriogenology
https://www.readbyqxmd.com/read/29762665/mir-194-3p-represses-the-progesterone-receptor-and-decidualization-in-eutopic-endometrium-from-women-with-endometriosis
#13
Tianjiao Pei, Chang Liu, Tingting Liu, Li Xiao, Bin Luo, Jing Tan, Xueying Li, Guojun Zhou, Changling Duan, Wei Huang
Progesterone resistance in the eutopic endometrium (EuE) is suggested to be a critical factor for decreased endometrial receptivity and implantation failure in reproductive-aged women with endometriosis. Altered expression of miRNAs has been reported to play an important role in the pathophysiology of endometriosis-associated infertility. However, the underlying mechanisms of aberrant progesterone receptor (PR) and deficient decidualization regulated by miRNAs in endometriosis have not been thoroughly elucidated...
May 11, 2018: Endocrinology
https://www.readbyqxmd.com/read/29757581/transmyometrial-embryo-transfer-as-a-useful-method-to-overcome-difficult-embryo-transfers-a-single-center-retrospective-study
#14
Janisse Ferreri Dos Anjos, Emma Gabriela Portillo Osorio, Joana Peñarrubia, Ester Vidal, Francisco Fábregues Gasol
OBJECTIVE: Pregnancy after an embryo transfer depends largely on embryo quality, endometrial receptivity, and the technique used in the embryo transfer. Embryo transfers have been reported as inevitably traumatic and difficult for 5-7% of patients in assisted reproduction treatment. In these cases, transmyometrial embryo transfer should be considered as a suitable method to overcome difficult embryo transfers. The aim of this study was to report our experience with this technique and analyze its causes, results and complications...
May 14, 2018: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/29755412/association-between-progesterone-elevation-on-the-day-of-human-chronic-gonadotropin-trigger-and-pregnancy-outcomes-after-fresh-embryo-transfer-in-in-vitro-fertilization-intracytoplasmic-sperm-injection-cycles
#15
REVIEW
Sandro C Esteves, Gautam Khastgir, Jatin Shah, Kshitiz Murdia, Shweta Mittal Gupta, Durga G Rao, Soumyaroop Dash, Kundan Ingale, Milind Patil, Kunji Moideen, Priti Thakor, Pavitra Dewda
Progesterone elevation (PE) during the late follicular phase of controlled ovarian stimulation in fresh embryo transfer in vitro fertilization (IVF)/intracytoplasmic sperm injection cycles has been claimed to be associated with decreased pregnancy rates. However, the evidence is not unequivocal, and clinicians still have questions about the clinical validity of measuring P levels during the follicular phase of stimulated cycles. We reviewed the existing literature aimed at answering four relevant clinical questions, namely (i) Is gonadotropin type associated with PE during the follicular phase of stimulated cycles? (ii) Is PE on the day of human chorionic gonadotropin (hCG) associated with negative fresh embryo transfer IVF/intracytoplasmic sperm injection (ICSI) cycles outcomes in all patient subgroups? (iii) Which P thresholds are best to identify patients at risk of implantation failure due to PE in a fresh embryo transfer? and (iv) Should a freeze all policy be adopted in all the cycles with PE on the day of hCG? The existing evidence indicates that late follicular phase progesterone rise in gonadotropin releasing analog cycles is mainly caused by the supraphysiological stimulation of granulosa cells with exogenous follicle-stimulating hormone...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29737471/does-the-endometrial-receptivity-array-really-provide-personalized-embryo-transfer
#16
Rawad Bassil, Robert Casper, Nivin Samara, Tzu-Bou Hsieh, Eran Barzilay, Raoul Orvieto, Jigal Haas
PURPOSE: The aim of the present study was to determine the percentage of infertility patients who are diagnosed with a non-receptive endometrium according to the endometrial receptivity array (ERA) test and to examine whether adjusting the embryo transfer day according to the proposed shift in the window of implantation improves the pregnancy rate compared to non-ERA-tested patients. METHODS: A single-center retrospective cohort study, including 53 consecutive good prognosis patients (0-2 previous frozen embryo transfers) admitted to our IVF unit for a mock cycle prior to their frozen day-5 embryo (blastocyst) transfer cycle...
May 8, 2018: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29727207/the-impact-of-autoimmunity-related-early-ovarian-aging-on-icsi-cycle-outcome
#17
Gulay Beydilli Nacak, Enis Ozkaya, Cigdem Yayla Abide, Bulent Emre Bilgic, Belgin Devranoglu, Reyyan Gokcen Iscan
The aim of this study was to investigate the impact of anti-thyroid peroxidase antibodies (Anti-TPO) on the in vitro fertilization and embryo transfer (IVF-ET) outcome in women with poor ovarian reserve but normal thyrotropin levels. A total of 300 patients with poor ovarian reserve undergoing ICSI cycle from April 2015 to December 2017 were analyzed retrospectively. Subjects were divided into two groups: Group 1: Women with early ovarian aging, Group 2: Women with age related poor ovarian reserve. All subjects underwent anti-thyroid peroxidase antibody (anti-TPO) analysis...
May 4, 2018: Gynecological Endocrinology
https://www.readbyqxmd.com/read/29720512/a-role-for-steroid-sulfatase-in-intracrine-regulation-of-endometrial-decidualisation
#18
Douglas A Gibson, Paul A Foster, Ioannis Simitsidellis, Hilary Critchley, Olympia Kelepouri, Frances Collins, Philippa T Saunders
In women, establishment of pregnancy is dependent upon 'fine-tuning' of the endometrial microenvironment which is mediated by terminal differentiation (decidualisation) of endometrial stromal fibroblasts (ESF). We have demonstrated that intracrine steroid metabolism plays a key role in regulating decidualisation and is essential for time-dependent expression of key factors required for endometrial receptivity. The primary aim of the current study was to determine whether sulfated steroids can act as precursors to bioactive sex steroids during decidualisation...
May 2, 2018: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/29709683/a-single-preovulatory-administration-of-ulipristal-acetate-affects-the-decidualization-process-of-the-human-endometrium-during-the-receptive-period-of-the-menstrual-cycle
#19
Saúl Lira-Albarrán, Marta Durand, David Barrera, Claudia Vega, Rocio García Becerra, Lorenza Díaz, Janice García-Quiroz, Claudia Rangel, Fernando Larrea
In order to get further information on the effects of ulipristal acetate (UPA) upon the process of decidualization of endometrium, a functional analysis of the differentially expressed genes in endometrium (DEG) from UPA treated-versus control-cycles of normal ovulatory women was performed. A list of 1183 endometrial DEG, from a previously published study by our group, was submitted to gene ontology, gene enrichment and ingenuity pathway analyses (IPA). This functional analysis showed that decidualization was a biological process overrepresented...
April 27, 2018: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/29701043/-therapeutic-effects-on-ovulation-and-reproduction-promotion-with-acupuncture-and-clomiphene-in-polycystic-ovary-syndrome
#20
Liqing Yu, Lianying Cao, Jing Xie, Yin Shi
OBJECTIVE: To compare the difference in the therapeutic effects on ovulation disorder in polycystic ovary syndrome (PCOS) between the combined therapy of electroacupuncture and clomiphene and the single medication of clomiphene and to explore the effect mechanism. METHODS: A total of 80 patients of PCOS were randomized into an acupuncture plus medication group (40 cases) and a medication group (40 cases). In the medication group, since the 5th day of menstruation or medicine-withdrawal bleeding, clomiphene was prescribed for oral administration, continuously for 5 days...
March 12, 2018: Zhongguo Zhen Jiu, Chinese Acupuncture & Moxibustion
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