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https://www.readbyqxmd.com/read/27915039/uterine-immune-profiling-for-increasing-live-birth-rate-a-one-to-one-matched-cohort-study
#1
Nathalie Lédée, Laura Prat-Ellenberg, Lucie Chevrier, Richard Balet, Cynthia Simon, Clarisse Lenoble, Elie El Irani, Dominique Bouret, Guy Cassuto, Dominique Vitoux, Katia Vezmar, Armand Bensussan, Gérard Chaouat, Marie Petitbarat
BACKGROUND: Embryo implantation remains the main limiting factor in IVF/ICSI program. Endometrial immune remodeling events begin before implantation and are a vital process for pregnancy, preparing future maternal immune tolerance and regulating the placentation process. METHODS: Between 2012 and 2014, 193 patients (analyzed group) enrolled in our IVF program benefitted of an endometrial immune profiling to determine if their uterus was immunologically ready to accept an embryo and, if not, the specific immune mechanisms involved...
November 24, 2016: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/27915038/intrauterine-administration-of-hcg-activated-autologous-human-peripheral-blood-mononuclear-cells-pbmc-promotes-live-birth-rates-in-frozen-thawed-embryo-transfer-cycles-of-patients-with-repeated-implantation-failure
#2
Saijiao Li, Jing Wang, Yan Cheng, Danni Zhou, Tailang Yin, Wangming Xu, Nan Yu, Jing Yang
Recurrent implantation failure refers to unsuccessful implantation after repeated transfers of morphologically good quality embryos into a normal uterus. Recently, accumulating evidence has suggested that local immune cells at the implantation site have actively contributed to embryo implantation. Our aim was to study the effects of intrauterine administration of hCG-activated autologous human PBMC on clinical pregnancy, implantation rates and live birth rate of patients who received frozen/thawed embryo transfer...
November 27, 2016: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/27911818/planar-cell-polarity-signaling-in-the-uterus-directs-appropriate-positioning-of-the-crypt-for-embryo-implantation
#3
Jia Yuan, Jeeyeon Cha, Wenbo Deng, Amanda Bartos, Xiaofei Sun, Hsin-Yi Henry Ho, Jean-Paul Borg, Terry P Yamaguchi, Yingzi Yang, Sudhansu K Dey
Blastocyst implantation is a complex process requiring coordination of a dynamic sequence of embryo-uterine interactions. Blood vessels enter the uterus from the mesometrium, demarcating the uterus into mesometrial (M) and antimesometrial (AM) domains. Implantation occurs along the uterine longitudinal axis within specialized implantation chambers (crypts) that originate within the evaginations directed from the primary lumen toward the AM domain. The morphological orientation of crypts in rodent uteri was recognized more than a century ago, but the mechanism remained unknown...
November 28, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27905550/deep-sequencing-of-transcriptome-profiling-of-gstm2-knock-down-in-swine-testis-cells
#4
Yuqi Lv, Yi Jin, Yongqiang Zhou, Jianjun Jin, Zhenfa Ma, Zhuqing Ren
Glutathione-S-transferases mu 2 (GSTM2), a kind of important Phase II antioxidant enzyme of eukaryotes, is degraded by nonsense mediated mRNA decay due to a C27T substitution in the fifth exon of pigs. As a reproductive performance-related gene, GSTM2 is involved in embryo implantation, whereas, functional deficiency of GSTM2 induces pre- or post-natal death in piglets potentially. To have some insight into the role of GSTM2 in embryo development, high throughput RNA sequencing is performed using the swine testis cells (ST) with the deletion of GSTM2...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27905495/uterine-glands-impact-uterine-receptivity-luminal-fluid-homeostasis-and-blastocyst-implantation
#5
Andrew M Kelleher, Gregory W Burns, Susanta Behura, Guoyao Wu, Thomas E Spencer
Uterine glands are essential for pregnancy in mice and likely humans, because they secrete or transport bioactive substances that regulate uterine receptivity for blastocyst implantation. In mice, the uterus becomes receptive to blastocyst implantation on day 4, but is refractory by day 5. Here, blastocysts could be recovered from progesterone-induced uterine gland (PUGKO) but not wildtype (WT) mice on day 5 post-mating. Anti-adhesive Muc1 protein and microvilli were present on the luminal epithelium of PUGKO but not WT uteri...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27898948/%C3%AE-and-%C3%AE-adrenergic-receptors-stimulation-relaxes-porcine-myometrium-in-the-peri-implantation-period
#6
W Markiewicz, J J Jaroszewski
These studies were to demonstrate whether the β-receptor is involved in regulating the contractility of the swine myometrium in the peri-implantation period and to compare a relaxing activity of selective β- and β-adrenergic agonists (salbutamol and BRL 37344, respectively). Myometrial strips were collected form the gilts ( = 8) on d 12 to 14 of pregnancy. Changes in the contractility of myometrial strips were assessed further to the administration of increasing concentrations of the agonists (10 to 10 ) with and without β-adrenergic receptor antagonists: butoxamine, propranolol, and bupranolol at 10 ...
November 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27884089/an-animal-model-of-effects-of-nicotine-exposure-on-endometrial-receptivity-and-embryo-implantation-in-pregnancy
#7
Yaşam Kemal Akpak, Yasemin Çekmez, Aslı Erdoğan Çakır, Nilay Karaca, Gonca Batmaz, Serdar Gülşen, Esra Tuştaş Haberal
OBJECTIVE: This study aims at evaluating the endometrial receptivity in uterus of pregnant rats exposed to nicotine via examination of integrin expression by immunohistochemical effect. METHODS: In this study, 16 healthy pregnant rats were divided into two groups of control and study groups each comprising 8 rats. The rats randomised to study group were given a certain amount of nicotine before and during the pregnancy. Integrin expression was detected in uterus of all rats by immunohistochemical staining...
November 24, 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27865941/local-injection-of-diluted-vasopressin-followed-by-suction-curettage-for-cervical-ectopic-pregnancy
#8
Hiroshi Ishikawa, Youichi Unno, Akiko Omoto, Makio Shozu
OBJECTIVE: To report the results of local injection of diluted vasopressin followed by suction curettage as a conservative treatment for women with cervical ectopic pregnancy, who wish to preserve their future fertility. STUDY DESIGN: This was a retrospective chart review in a university hospital and a municipal hospital. We injected diluted vasopressin (Pitressin R, total amount of 4-10 units) transvaginally into the cervix surrounding the gestational sac, but not directly into the gestational sac, and/or the lower segment of the uterine body under transvaginal ultrasonographic guidance...
November 11, 2016: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/27862405/decidualization-of-the-canine-uterus-from-early-until-late-gestational-in-vivo-morphological-observations-and-functional-characterization-of-immortalized-canine-uterine-stromal-cell-lines
#9
F R Graubner, I M Reichler, N A Rahman, R Payan-Carreira, A Boos, M P Kowalewski
The apparent lack of classical mechanisms for maternal recognition of pregnancy is one of the most intriguing features of canine reproduction. Consequently, similar levels of circulating luteal steroids are observed in pregnant and non-pregnant dogs. However, the early pre-implantation canine embryo locally modulates uterine responses to its presence, facilitating the successful onset of pregnancy. As a part of this interaction, the canine uterus undergoes a species-specific decidualization. Maternal stroma-derived decidual cells develop, the only cells of the canine placenta expressing progesterone receptor (PGR)...
November 15, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27860312/cytochrome-p450-26a1-modulates-natural-killer-cells-in-mouse-early-pregnancy
#10
Chao-Yang Meng, Zhong-Yin Li, Wen-Ning Fang, Zhi-Hui Song, Dan-Dan Yang, Dan-Dan Li, Ying Yang, Jing-Pian Peng
Cytochrome P450 26A1 (CYP26A1) has a spatiotemporal expression pattern in the uterus, with a significant increase in mRNA and protein levels during peri-implantation. Inhibiting the function or expression of CYP26A1 can cause pregnancy failure, suggesting an important regulatory role of CYP26A1 in the maintenance of pregnancy. However, little is known about the exact mechanism involved. In this study, using a pCR3.1-cyp26a1 plasmid immunization mouse model and a Cyp26a1-MO (Cyp26a1-specific antisense oligos) knockdown mouse model, we report that the number of Dolichos biflorus agglutinin (DBA) lectin-positive uterine natural killer (uNK) cells was reduced in pCR3...
November 17, 2016: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/27859869/signaling-pathways-in-mammalian-preimplantation-development-linking-cellular-phenotypes-to-lineage-decisions
#11
REVIEW
Sergio Menchero, Teresa Rayon, Maria Jose Andreu, Miguel Manzanares
The first stages of mammalian development, before implantation of the embryo in the maternal uterus, result in the establishment of three cell populations in the blastocyst: trophectoderm, epiblast, and primitive endoderm. These events involve only a small number of cells, and are initiated by morphological differences among them related to cell adhesion and polarity. Much attention has been paid to the master transcription factors that are critical for establishing and maintaining early lineage choices. Nevertheless, a large body of work also reveals that additional molecular mechanisms are involved...
November 18, 2016: Developmental Dynamics: An Official Publication of the American Association of Anatomists
https://www.readbyqxmd.com/read/27853913/differences-in-pregnancy-outcomes-in-donor-egg-frozen-embryo-transfer-fet-cycles-following-preimplantation-genetic-screening-pgs-a-single-center-retrospective-study
#12
Alison Coates, Brandon J Bankowski, Allen Kung, Darren K Griffin, Santiago Munne
PURPOSE: This study aims to test the hypothesis, in a single-center retrospective analysis, that live birth rates are significantly different when utilizing preimplantation genetic screening (PGS) compared to not utilizing PGS in frozen-thawed embryo transfers in our patients that use eggs from young, anonymous donors. The question therefore arises of whether PGS is an appropriate intervention for donor egg cycles. METHODS: Live birth rates per cycle and live birth rates per embryo transferred after 398 frozen embryo transfer (FET) cycles were examined from patients who elected to have PGS compared to those who did not...
November 16, 2016: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/27836961/insights-from-imaging-the-implanting-embryo-and-the-uterine-environment-in-three-dimensions
#13
Ripla Arora, Adam Fries, Karina Oelerich, Kyle Marchuk, Khalida Sabeur, Linda C Giudice, Diana J Laird
Although much is known about the embryo during implantation, the architecture of the uterine environment in which the early embryo develops is not well understood. We employed confocal imaging in combination with 3D analysis to identify and quantify dynamic changes to the luminal structure of murine uterus in preparation for implantation. When applied to mouse mutants with known implantation defects, this method detected striking peri-implantation abnormalities in uterine morphology that cannot be visualized by histology...
November 11, 2016: Development
https://www.readbyqxmd.com/read/27834288/maternal-t-regulatory-cell-depletion-impairs-embryo-implantation-which-can-be-corrected-with-adoptive-t-regulatory-cell-transfer
#14
Ryan J Heitmann, R Patrick Weitzel, Yanling Feng, James H Segars, John F Tisdale, Erin Foran Wolff
Maternal immune tolerance of fetal engraftment is critical for the establishment and maintenance of pregnancy, but the exact mechanisms permitting this semi-allograft in the maternal host are not completely understood. Further, failure of the embryo to implant in the uterus accounts for at least 30% of the best prognosis in vitro fertilization cycles when a perfect embryo is transferred to a normal uterus. We hypothesized that T regulatory cells (Tregs), defined by CD4(+)CD25hi surface expression and the FoxP3+ transcription factor, play an important role in the initiation of the earliest stages of pregnancy, specifically implantation of the embryo...
November 9, 2016: Reproductive Sciences
https://www.readbyqxmd.com/read/27825168/activation-of-sgk1-in-endometrial-epithelial-cells-in-response-to-pi3k-akt-inhibition-impairs-embryo-implantation
#15
Madhuri S Salker, Jennifer H Steel, Zohreh Hosseinzadeh, Jaya Nautiyal, Zoe Webster, Yogesh Singh, Sara Brucker, Florian Lang, Jan J Brosens
BACKGROUND: Serum & Glucocorticoid Regulated Kinase 1 (SGK1) plays a fundamental role in ion and solute transport processes in epithelia. In the endometrium, down-regulation of SGK1 during the window of receptivity facilitates embryo implantation whereas expression of a constitutively active mutant in the murine uterus blocks implantation. METHODS/RESULTS: Here, we report that treatment of endometrial epithelial cells with specific inhibitors of the phosphoinositide 3-kinase (PI3K)/AKT activity pathway results in reciprocal activation of SGK1...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27823750/clinical-audit-of-estradiol-implant-therapy-long-duration-of-action-and-implications-in-non-hysterectomised-women
#16
Shaday Wheatley, Robin J Bell, Bronwyn G A Stuckey, Penelope J Robinson, Susan R Davis
We audited the files of 114 postmenopausal women who had been treated with subcutaneous Estrapel (50mg oestradiol implants). Of the 92 women who received more than one implant, the median number of days between implants was 223.5 (range 49-875), with an estimated median time to return to baseline of 311days (range 108-1228). Although oestradiol implants can provide an excellent non-oral treatment option, their prolonged action makes patient selection important, as the implants cannot easily be removed. In women with an intact uterus, the continuation of progestin therapy after cessation of implant therapy is imperative...
December 2016: Maturitas
https://www.readbyqxmd.com/read/27822357/donation-of-surplus-frozen-pre-embryos-to-research-in-israel-underlying-motivations
#17
Aviad Raz, Jonia Amer-Alshiek, Mor Goren-Margalit, Gal Jacobi, Alyssa Hochberg, Ami Amit, Foad Azem, Hadar Amir
BACKGROUND: The high number of IVF procedures performed in Israel has had an unforeseen consequence: accumulation of large amounts of surplus frozen embryos. After five years that the frozen embryos are kept for free, patients need to make an embryo disposition decision. One option is donation for research. The donation rate in Israel is very low. Our aim was to understand the attitudes, values and perceptions of female IVF patients that decided to donate their surplus frozen embryos to research...
2016: Israel Journal of Health Policy Research
https://www.readbyqxmd.com/read/27822350/surgical-excision-of-essure%C3%A2-devices-with-eshre-class-iib-uterine-malformation-sequential-hysteroscopic-laparoscopic-approach-to-the-septate-uterus
#18
E S Sills, G D Palermo
OBJECTIVE: While contraindications to Essure® placement have been provided by the manufacturer, there is no consensus on how best to remove these contraceptive devices. Here, we describe a non-hysterectomy removal of Essure® for a patient with a septate uterus (ESHRE Class IIb uterine malformation). CLINICAL CASE: A 35yr old G4 P2 presented for removal of Essure® implants after three years of gradually increasing pelvic pain, weight gain, headache, dizziness, lower extremity paresthesia, and fatigue which followed hysteroscopic sterilization (HS)...
March 28, 2016: Facts, Views & Vision in ObGyn
https://www.readbyqxmd.com/read/27818117/-induced-abortion-guidelines-for-clinical-practice%C3%A2-%C3%A2-text-of-the-guidelines-short-text
#19
C Vayssière, A Gaudineau, L Attali, K Bettahar, S Eyraud, P Faucher, P Fournet, D Hassoun, M Hatchuel, C Jamin, B Letombe, T Linet, M Msika Razon, A Ohanessian, H Segain, S Vigoureux, N Winer, S Wylomanski, A Agostini
OBJECTIVE: Develop recommendations for the practice of induced abortion. MATERIALS AND METHODS: The Pubmed database, the Cochrane Library and the recommendations from the French and foreign Gyn-Obs societies or colleges have been consulted. RESULTS: The number of induced abortions (IA) has been stable for several decades. There are a lot of factors explaining the choice of abortion when there is an unplanned pregnancy (UPP). Early initiation and choice of contraception in connection to the woman's life are associated with lower NSP...
December 2016: Journal de Gynécologie, Obstétrique et Biologie de la Reproduction
https://www.readbyqxmd.com/read/27815559/granulosa-cell-biomarkers-to-predict-pregnancy-in-art-pieces-to-solve-the-puzzle
#20
REVIEW
Richard J Kordus, Holly A LaVoie
Cumulus and mural granulosa cells of the ovarian follicle surround and interact with the developing oocyte. These follicular cells reflect the oocyte's overall health and may indicate subsequent developmental competence of embryos. Biomarkers of granulosa cells associated with individual oocytes could potentially be used in assisted reproduction to indicate which embryos have the best chance of implanting in the uterus and completing gestation. In this review, we have performed a comprehensive assessment of the recent literature for human cumulus and mural granulosa cell mRNA biomarkers as they relate to pregnancy and live birth...
February 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
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