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Embryo implantation failure

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https://www.readbyqxmd.com/read/29785531/prevalent-genotypes-of-methylenetetrahydrofolate-reductase-mthfr-in-recurrent-miscarriage-and-recurrent-implantation-failure
#1
Yuanchang Zhu, Tonghua Wu, Lijun Ye, Guangui Li, Yong Zeng, Yaou Zhang
OBJECTIVE: To evaluate the association of two common methylenetetrahydrofolate reductase (MTHFR) gene polymorphisms with recurrent miscarriage (RM) and repeated implantation failure (RIF) METHODS: The study comprised of 521 patients, with a history of RM (n = 370) or RIF (n = 151). One hundred forty-four women with fallopian tube blockages who had successfully conceived after the first in vitro fertilization embryo transfer treatment served as the control group. The MTHFR alleles, genotypes, and haplotypes were assessed in different groups...
May 21, 2018: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29785530/azoospermia-and-embryo-morphokinetics-testicular-sperm-derived-embryos-exhibit-delays-in-early-cell-cycle-events-and-increased-arrest-prior-to-compaction
#2
Nina Desai, Pavinder Gill, Nicholas N Tadros, Jeffrey M Goldberg, Edmund Sabanegh, Tommaso Falcone
PURPOSE: Sperm play an essential role in embryonic genome activation and embryonic progression to blastocyst. In the present work, we focus on development of embryos created as a result of ICSI with testicular or epididymal sperm from azoospermic males and compare this to outcomes from normospermic males. The objective of this study was to determine if sperm origin influences clinical outcomes, the kinetics of embryo development, or the incidence of cleavage anomalies and multinucleation...
May 21, 2018: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29780295/successful-in-vitro-fertilization-and-embryo-transfer-after-transplantation-of-cryopreserved-ovarian-tissue-report-of-the-first-korean-case
#3
Jung Ryeol Lee, Dayong Lee, Soohyeon Park, Eun Chan Paik, Seul Ki Kim, Byung Chul Jee, Chang Suk Suh, Seok Hyun Kim
For patients at risk of premature ovarian failure with cancer treatment, it is an important option to re-implant the ovarian tissue (OT) after cryopreservation to preserve endocrine function and fertility. With this technique, about 30% of pregnancy success rate and about 90 live births have been reported to date. However, there has been no case report of successful in vitro fertilization (IVF) and embryo transfer (ET) with oocytes collected from transplanted cryopreserved OT in Korea. We report a 30-year old woman with rectal cancer who underwent IVF and ET after cryopreserved OT thawing and re-implantation...
May 21, 2018: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/29780028/induced-endometrial-trauma-endometrial-scratch-in-the-mid-luteal-menstrual-cycle-phase-preceding-first-cycle-ivf-icsi-versus-usual-ivf-icsi-therapy-study-protocol-for-a-randomised-controlled-trial
#4
Clare Pye, Robin Chatters, Judith Cohen, Kate Brian, Ying C Cheong, Susan Laird, Lamiya Mohiyiddeen, Jonathan Skull, Stephen Walters, Tracey Young, Mostafa Metwally
INTRODUCTION: Endometrial trauma commonly known as endometrial scratch (ES) has been shown to improve pregnancy rates in women with a history of repeated implantation failure undergoing in vitro fertilisation (IVF), with or without intracytoplasmic sperm injection (ICSI). However, the procedure has not yet been fully explored in women having IVF/ICSI for the first time. This study aims to examine the effect of performing an ES in the mid-luteal phase prior to a first-time IVF/ICSI cycle on the chances of achieving a clinical pregnancy and live birth...
May 20, 2018: BMJ Open
https://www.readbyqxmd.com/read/29778382/comparison-of-the-prevalence-of-chronic-endometritis-as-determined-by-means-of-different-diagnostic-methods-in-women-with-and-without-reproductive-failure
#5
Yingyu Liu, Xiaoyan Chen, Jin Huang, Chi-Chiu Wang, Mei-Yung Yu, Susan Laird, Tin-Chiu Li
OBJECTIVE: To compare the prevalence of chronic endometritis (CE) when different diagnostic methods are used. DESIGN: Prospective observational study. SETTING: University-affiliated hospital. PATIENT(S): Four groups of women were studied, including women with proven fertility (Fertile; n = 40), unexplained recurrent miscarriage (RM; n = 93), recurrent implantation failure (RIF; n = 39), and infertile subjects undergoing endometrial scratch in a natural cycle preceding frozen-thawed embryo transfer (Infertility; n = 48)...
May 2018: Fertility and Sterility
https://www.readbyqxmd.com/read/29757275/isolation-of-primary-human-decidual-cells-from-the-fetal-membranes-of-term-placentae
#6
Tali Farine, Michael Parsons, Stephen Lye, Oksana Shynlova
The decidua, also known as the pregnant endometrium, is a critically important reproductive tissue. Decidual cells, comprised mainly of decidualized stromal cells and immune cells, are responsible for the secretion of hormonal and inflammatory factors which are critical for successful blastocyst implantation, placental development and play a role in the initiation of labor at term and preterm. Many pregnancy complications can arise from perturbations of a fine balance of different cell populations comprising decidua...
April 30, 2018: Journal of Visualized Experiments: JoVE
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
#7
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/29739285/association-between-mir-605a-g-mir-608g-c-mir-631i-d-mir-938c-t-and-mir-1302-3c-t-polymorphisms-and-risk-of-recurrent-implantation-failure
#8
Hyun Ah Lee, Eun Hee Ahn, Hyo Geun Jang, Jung Oh Kim, Ji Hyang Kim, Yu Bin Lee, Woo Sik Lee, Nam Keun Kim
Recurrent implantation failure (RIF) is diagnosed when pregnancy failure occurs after 2 consecutive in vitro fertilization-embryo transfers (IVF-ET) to the endometrium using at least 4 high-quality embryos. MicroRNAs (miRNAs) are a class of small noncoding RNA and reported to play an important role in cell proliferation as well as implantation process. Recently, it has been reported that miRNA can regulate RIF occurrence. So, we were to examine the association between the specific miRNA polymorphisms and RIF in Korean women...
January 1, 2018: Reproductive Sciences
https://www.readbyqxmd.com/read/29737471/does-the-endometrial-receptivity-array-really-provide-personalized-embryo-transfer
#9
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/29726701/clinical-efficacy-and-mechanism-of-growth-hormone-action-in-patients-experiencing-repeat-implantation-failure
#10
Ye Chen, Fenghua Liu, Yingqi Nong, Jianxing Ruan, Qingqing Guo, Ming Luo, Qianwen Huang
OBJECTIVES: To investigate the clinical efficacy of growth hormone (GH) in patients experiencing repeat implantation failure (RIF) and explore the possible mechanism. METHODS: Forty-two RIF patients undergoing in vitro fertilization-embryo transfer (IVF-ET) were enrolled in the present trial: 22 patients who received GH (treatment group) and 20 who did not receive GH (controls). RESULTS: The clinical pregnancy and live birth rates in the treatment group were significantly higher than those in the control group (both P<0...
May 4, 2018: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/29723118/protective-effects-of-interferon-tau-against-lipopolysaccharide-induced-embryo-implantation-failure-in-pregnant-mice
#11
Kangfeng Jiang, Jing Yang, Yu Chen, Shuai Guo, Gan Zhao, Haichong Wu, Ganzhen Deng
Interferon-tau (IFN-τ), a novel type I interferon, is produced by trophoblast cells in ruminants. Previous studies have confirmed that IFN-τ could induce immunological tolerance in humans and other species. However, there are few reports on whether IFN-τ has a protective effect on embryo implantation failure caused by excessive inflammation at the maternal-fetal interface. In our study, a mouse model of lipopolysaccharide (LPS)-induced implantation failure was successfully established, and we investigated the protective effects of IFN-τ...
May 3, 2018: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/29681715/can-intracytoplasmic-morphologically-selected-spermatozoa-injection-be-used-as-first-choice-of-treatment-for-severe-male-factor-infertility-patients
#12
Geeta Goswami, Meeta Sharma, Deepika Jugga, Devi M Gouri
Aim: This study was carried out to assess the outcome of the intracytoplasmic morphologically selected sperm injection (IMSI) technique compared with the previous failed intracytoplasmic sperm injection (ICSI) attempts in oligoasthenoteratozoospermia (OAT)/severe OAT (SOAT)/teratozoospermia patients. Setting: Institution-based, in vitro fertilization center. Study Design: It was a nonrandomized prospective study including 57 couples who had previous one or two ICSI failures (failure due to no implantation as embryos were transferred in these cycles and had no pregnancy) due to male factor...
January 2018: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/29679980/parental-genetic-material-and-oxygen-concentration-affect-hatch-dynamics-of-mouse-embryo-in-vitro
#13
Shaoquan Zhan, Shanbo Cao, Hongzi Du, Yuan Sun, Li Li, Chenhui Ding, Haiyan Zheng, Junjiu Huang
BACKGROUND: Hatching is crucial for mammalian embryo implantation, since difficulties during this process can lead to implantation failure, ectopic pregnancy and consequent infertility. Despite years of intensive researches, how internal and external factors affecting embryo hatch are still largely unclear. METHODS: The effects of parental genetic material and oxygen concentration on hatch process were examined. Fertilized and parthenogenetic mouse preimplantation embryos were cultured in vitro under 5 and 20% oxygen for 120 h...
April 21, 2018: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/29648896/does-the-dysregulation-of-matrix-metalloproteinases-contribute-to-recurrent-implantation-failure
#14
Mustapha Benkhalifa, Yosra Zayani, Véronique Bach, Henri Copin, Moncef Feki, Moncef Benkhalifa, Monia Allal-Elasmi
The progress in in vitro fertilization (IVF) techniques for infertility management has led to the investigation of embryo implantation site proteins such as Matrix metalloproteinases (MMPs), which may have a key role in embryo-endometrium crosstalk and in the molecular mechanisms of the embryo implantation. Areas covered: Numerous studies have generated much information concerning the relation between the different proteins at the site of implantation such as cytokines, growth factors, adhesion molecules and MMPs...
April 12, 2018: Expert Review of Proteomics
https://www.readbyqxmd.com/read/29627619/impact-of-prednisone-in-patients-with-repeated-embryo-implantation-failures-beneficial-or-deleterious
#15
REVIEW
Nathalie Lédée, Laura Prat-Ellenberg, Marie Petitbarat, Lucie Chevrier, Cynthia Simon, Elie El Irani, Dominique Vitoux, Armand Bensussan, Gérard Chaouat
INTRODUCTION: Corticotherapy is the leading medication worldwide for patients with history of repeated implantation failures (RIF) after IVF/ICSI. Nevertheless, we still do not know its local mechanism of action, hence its precise indication. Our objective is to document the impact of prednisone on the endometrial expression of immune biomarkers (CD56 cells count, IL-18/TWEAK, IL-15/Fn-14 mRNA ratio) at the time of uterine receptivity in a RIF population. MATERIALS AND METHOD: An endometrial biopsy was realized in the mid luteal phase for immune profiling: IL-15/Fn-14 and IL-18/TWEAK mRNA ratios were determined by quantitative RT-PCR and CD56 mobilization per IHC...
March 26, 2018: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/29617817/decreased-pecam1-mediated-tgf-%C3%AE-1-expression-in-the-mid-secretory-endometrium-in-women-with-recurrent-implantation-failure
#16
Feng Guo, Chenchen Si, Mingjuan Zhou, Jingwen Wang, Dan Zhang, Peter C K Leung, Bufang Xu, Aijun Zhang
STUDY QUESTION: Is recurrent implantation failure (RIF) associated with decreased expression of platelet and endothelial cell adhesion molecule 1 (PECAM1) and transforming growth factor β1 (TGF-β1) in the endometrium during the implantation window? SUMMARY ANSWER: The present study demonstrates that the expression of PECAM1 and TGF-β1 is significantly decreased in the mid-secretory endometrium in women with RIF, which may account for embryo implantation failure...
March 30, 2018: Human Reproduction
https://www.readbyqxmd.com/read/29605410/environmentally-relevant-levels-of-bisphenol-a-affect-uterine-decidualization-and-embryo-implantation-through-the-estrogen-receptor-serum-and-glucocorticoid-regulated-kinase-1-epithelial-sodium-ion-channel-%C3%AE-subunit-pathway-in-a-mouse-model
#17
Mu Yuan, Minhao Hu, Yiyun Lou, Qijing Wang, Luna Mao, Qitao Zhan, Fan Jin
OBJECTIVE: To investigate whether bisphenol A (BPA) exposure is associated with uterine decidualization and embryo implantation failure in mice. DESIGN: Experimental animal study and in vitro study. SETTING: University-based infertility center. ANIMAL(S): ICR mice. INTERVENTION(S): Mice treated with different doses of BPA; Ishikawa cells cultured in medium of different concentrations of BPA. MAIN OUTCOME MEASURE(S): Embryo implantation sites, uterine weight, quantitative real-time reverse transcriptase-polymerase chain reaction, Western blot analysis, hematoxylin and eosin staining, and immunohistochemical, cell proliferation, and statistical analyses...
April 2018: Fertility and Sterility
https://www.readbyqxmd.com/read/29603821/lymphocytes-immunotherapy-for-preserving-pregnancy-mechanisms-and-challenges
#18
REVIEW
Hamed Hajipour, Hamid Reza Nejabati, Zeinab Latifi, Kobra Hamdi, Zahra Bahrami-Asl, Amir Fattahi, Mohammad Nouri
Due to the expression of paternal antigens by the embryo, pregnancy is considered as a semi-allograft and so immunological dysregulation is considered as one of the important causes in repeated implantation failure (RIF) and recurrent pregnancy loss (RPL). It has been revealed that lymphocytes immunotherapy (LIT) could be an appropriate approach to prevent pregnancy loss in such patients. Various mechanisms have been suggested for effectiveness of LIT such as enhancing expression of anti-paternal cytotoxic antibodies (APCA), progesterone-induced blocking factor (PIBF), anti-idiotypic antibodies (Ab2), and mixed lymphocyte reaction blocking antibodies (MLR-Bf), as well as reduction in the T helper 1/T helper 2 ratio and deviation in the pattern of cytokines production...
March 31, 2018: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/29581237/female-fertility-preservation-past-present-and-future
#19
Benjamin Fisch, Ronit Abir
Anti-cancer therapy, particularly chemotherapy damages ovarian follicles and promotes ovarian failure. The only pharmacological means for protecting the ovaries from chemotherapy-induced injury is gonadotrophin-releasing hormone agonist, but its efficiency remains controversial; ovarian transposition is used to shield the ovary from radiation when indicated. Until the late 1990s, the only option for fertility preservation and restoration in women with cancer was embryo cryopreservation. The development of other assisted reproductive technologies such as mature oocyte cryopreservation and in vitro maturation of oocytes has contributed to fertility preservation...
March 26, 2018: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/29551013/the-interval-transfer-of-a-frozen-thawed-embryo-is-more-successful-than-a-fresh-embryo-transfer-for-women-undergoing-ivf-with-recurrent-implantation-failure-after-cleavage-stage-embryo-biopsy
#20
Jennifer C Pontré, John P Ryan, Andy Tan, Roger J Hart
BACKGROUND: Recurrent implantation failure (RIF) is repeated unsuccessful embryo transfers (ETs). AIMS: To identify predictive embryonic markers of implantation in RIF, following pre-implantation genetic screening (PGS) of cleavage stage embryos, after accounting for male and female factors. MATERIALS AND METHODS: Retrospective analysis of RIF patients undergoing PGS after correction of modifiable causes. RESULTS: Eighty-four patients underwent 140 in vitro ferilisation cycles...
March 18, 2018: Australian & New Zealand Journal of Obstetrics & Gynaecology
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