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Implantation infertility

Louise Hetherington, Elena Schneider, Caroline Scott, David DeKretser, Charles H Muller, Hubert Hondermarck, Tony Velkov, Mark A Baker
Globally, approximately 1 in 15 men of reproductive age are infertile, yet the precise mechanisms underlying their gamete failure are unknown. Although a semen-analysis is performed to determine fertilizing potential, the diagnostic suitability of this analysis has been questioned in several reports, as many men, classified as "infertile" according to their semen analysis, subsequently turn out to be fertile. Herein, we have used a quantitative (phospho)-proteomic analysis, using enrichment on titanium dioxide followed by ion-trap mass spectrometry (LC-MS/MS), to compare the semen of infertile versus fertile males...
October 21, 2016: Molecular & Cellular Proteomics: MCP
E A Devyatova, K A Tsaturova, E V Vartanyan
Many of the uterine infertility factors are associated with chronic endometritis. Its prevalence reaches 92.6%. Quality of endometrial transformation during the "implantation window" is the basis of successful fertility. In our retrospective comparative study of 101 in vitro fertilization (IVF) cycles, the efficacy of transvaginal Doppler ultrasound (TVDUS) in predicting successful implantation was evaluated. Inclusion criteria were as follows: age younger than 41 years and good quality of embryos. Exclusion criteria were as follows: 41 and older age, poor quality of embryos and uterine cavity lesions...
October 2016: Gynecological Endocrinology
Bruno Borghese, Krina T Zondervan, Mauricio S Abrao, Charles Chapron, Daniel Vaiman
Endometriosis is a gynecologic disease affecting up to 10% of the women and a major cause of pain and infertility. It is characterized by the implantation of functional endometrial tissue at ectopic positions generally within the peritoneum. This complex disease has an important genetic component with a heritability estimated at around 50%. This review aims at providing recent insights into the genetic bases of endometriosis, and present a detailed overview of evidence of epigenetic alterations specific to this disease...
October 18, 2016: Clinical Genetics
X L Ren, P Liu, Y Lian, J Huang, X Y Zheng, Y J Zhu, J Qiao
OBJECTIVE: To compare two flexible embryo catheters and determine whether clinical outcome differs in the in vitro fertilization-embryo transfer (IVF-ET) cycles. METHODS: This prospective control study was conducted by one doctor between July 2012 and November 2013. In the study, 2 064 patients undergoing fresh embryo transfer by using IVF-ET/intracytoplasmic sperm injection (ICSI)-ET in Reproductive Medical Center of Peking University Third Hospital were recruited...
October 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
Ji-Long Liu, Miao Zhao
Endometriosis affects 5-10% of women in reproductive age, leading to dysmenorrhea, pelvic pain and infertility; however, our understanding on the pathogenesis of this disease remains incomplete. In the present study, we performed a systematic analysis of endometriosis-related genes using text mining. Taking text mining results as input, we subsequently generated a filtered gene set by computing the likelihood of finding more than expected occurrences for every gene across the disease-centered subset of the PubMed database...
October 13, 2016: Genomics
Jessica E Miller, Soo Hyun Ahn, Stephany P Monsanto, Kasra Khalaj, Madhuri Koti, Chandrakant Tayade
Endometriosis is a complex, inflammatory disease that affects 6-10% of reproductive-aged women. Almost half of the women with endometriosis experience infertility. Despite the excessive prevalence, the pathogenesis of endometriosis and its associated infertility is unknown and a cure is not available. While many theories have been suggested to link endometriosis and infertility, a consensus among investigators has not emerged. In this extensive review of the literature as well as research from our laboratory, we provide potential insights into the role of immune dysfunction in endometriosis associated infertility...
October 11, 2016: Oncotarget
Inmaculada Moreno, Francisco M Codoñer, Felipe Vilella, Diana Valbuena, Juan F Martinez-Blanch, Jorge Jimenez-Almazán, Roberto Alonso, Pilar Alamá, Jose Remohí, Antonio Pellicer, Daniel Ramon, Carlos Simon
BACKGROUND: Bacterial cells in the human body account for 1-3% of total body weight and are at least equal in number to human cells. Recent research has focused on understanding how the different bacterial communities in the body (eg, gut, respiratory, skin, and vaginal microbiomes) predispose to health and disease. The microbiota of the reproductive tract has been inferred from the vaginal bacterial communities, and the uterus has been classically considered a sterile cavity. However, while the vaginal microbiota has been investigated in depth, there is a paucity of consistent data regarding the existence of an endometrial microbiota and its possible impact in reproductive function...
October 4, 2016: American Journal of Obstetrics and Gynecology
Natalie K Binder, Jemma Evans, Lois A Salamonsen, David K Gardner, Tu'uhevaha J Kaitu'u-Lino, Natalie J Hannan
Embryo implantation requires synchronized dialogue between the receptive endometrium and activated blastocyst via locally produced soluble mediators. During the mid-secretory (MS) phase of the menstrual cycle, increased glandular secretion into the uterine lumen provides important mediators that modulate the endometrium and support the conceptus during implantation. Previously we demonstrated the importance of vascular endothelial growth factor (VEGF) in the human uterus, particularly with respect to embryo implantation...
2016: PloS One
Alisa P Domnina, Polina V Novikova, Olga G Lyublinskaya, Valeriy V Zenin, Irina I Fridlyanskaya, Vyacheslav M Mikhailov, Nikolay N Nikolsky
Stem cell transplantation, which is based on the application of mesenchymal stem/stromal cells (MSCs), is a rapidly developing approach to the regenerative therapy of various degenerative disorders characterized by brain and heart failure, as well as skin lesions. In comparison, the use of stem cell transplantations to treat infertility has received less attention. One of the causes of miscarriages and fetal growth delay is the loss of the decidual reaction of endometrial cells. The present study modeled decidualization processes in pseudopregnant rats...
October 2016: Experimental and Therapeutic Medicine
Gábor L Kovács, Gergely Montskó, Zita Zrínyi, Nelli Farkas, Ákos Várnagy, József Bódis
Human reproduction is a relatively inefficient process and therefore the number of infertile couples is high. Assisted reproductive technologies (ART) have facilitated the birth of over five million children worldwide. ART, however, superimposes its own relative inefficiency on the preexisting inefficiency of normal reproduction. The efficiency (expressed as pregnancy rate) is generally not more than 30%. Modern reproductive medicine is gradually moving from multiple embryo transfer to the transfer of a single embryo, mainly because of obvious and unwanted side effects of multiple embryo transfer (e...
April 2016: EJIFCC
N Navali, A Gassemzadeh, L Farzadi, S Abdollahi, M Nouri, K Hamdi, F Mallah, F Jalilvand
STUDY QUESTION: Does the intrauterine administration of hCG immediately after oocyte retrieval in antagonist cycles with ICSI and fresh embryo transfer (ET) influence the implantation rate or chemical and clinical pregnancy rates? SUMMARY ANSWER: The intrauterine administration of hCG after oocyte retrieval increases the implantation rate and chemical and clinical pregnancy rates. WHAT IS KNOWN ALREADY: Over half of IVF/ICSI cycles fail due to implantation failure...
September 28, 2016: Human Reproduction
Maryam Eftekhar, Sepideh Miraj, Zahrasadat Mortazavifar
BACKGROUND: Gonadotropin-releasing hormone (GnRH) plays essential roles in embryo implantation, invasion of trophoblastic tissue, and steroid synthesis in the placenta. OBJECTIVE: The aim of this study was to evaluate the effect of GnRH antagonist administration on pregnancy outcomes in early implantation period. MATERIALS AND METHODS: In this retrospective study, 94 infertile women undergoing GnRH antagonist protocol who were at risk of ovarian hyperstimulation syndrome (OHSS) were included...
August 2016: International Journal of Reproductive Biomedicine (Yazd, Iran)
Safak Hatırnaz, Ebru Hatırnaz, Michael H Dahan, Seang Lin Tan, Alev Ozer, Mine Kanat-Pektas, Baris Ata
OBJECTIVE: To compare the clinical outcome of single-embryo transfer (SET) with double-embryo transfer (DET) in in vitro maturation (IVM) cycles performed in patients with polycystic ovary syndrome (PCOS), and to determine which factors predict those outcomes. DESIGN: A retrospective analysis. SETTING: Private assisted reproduction center. PATIENT(S): One hundred and fifty-nine women with PCOS. INTERVENTION(S): In vitro maturation with elective SET or DET conducted between September 2007 and May 2014...
September 24, 2016: Fertility and Sterility
Nageswara Rao Boggavarapu, Sujata Lalitkumar, Vijay Joshua, Sergo Kasvandik, Andres Salumets, Parameswaran Grace Lalitkumar, Kristina Gemzell-Danielsson
The complexity of endometrial receptivity at the molecular level needs to be explored in detail to improve the management of infertility. Here, differential expression of transcriptomes in receptive endometrial glands and stroma revealed Ectonucleotide Pyrophosphatase/Phosphodiesterase 3 (ENPP3) as a progesterone regulated factor and confirmed by various methods, both at mRNA and protein level. The involvement of ENPP3 in embryo attachment was tested in an in vitro model for human embryo implantation. Interestingly, there was high expression of ENPP3 mRNA in stroma but not protein...
September 26, 2016: Scientific Reports
I Motte, H Roman, B Clavier, F Jumeau, I Chanavaz-Lacheray, M Letailleur, B Darwish, N Rives
OBJECTIVE: Ovarian endometrioma ablation using plasma energy appears to be a valuable alternative to cystectomy, because it could spare underlying ovarian parenchyma resulting in high spontaneous and overall pregnancy rates. After initial postoperative decrease, anti-mullerian hormone (AMH) level progressively increases several months after ablation. The aim of our study was to assess the outcomes of in vitro fertilization (IVF) in women managed for ovarian endometriomas by ablation using plasma energy, when compared to those in women free of endometriosis...
September 21, 2016: Gynécologie, Obstétrique & Fertilité
Jichun Tan, Pingping Li, Qiushi Wang, Yaxuan Li, Xiaoni Li, Dongni Zhao, Xiaoyan Xu, Lin Kong
STUDY QUESTION: Does autologous transplantation of menstrual blood-derived stromal cells (menSCs) regenerate endometrium to support pregnancy in patients with severe Asherman's syndrome (AS)? SUMMARY ANSWER: Autologous menSCs transplantation significantly increases endometrial thickness (ET) for women with severe AS. WHAT IS KNOWN ALREADY: AS is a major cause of secondary infertility in women. Cell transplantation has been tried in a few clinical cases with encouraging results...
September 22, 2016: Human Reproduction
H R Nejabati, A Mota, L Farzadi, M Ghojazadeh, A Fattahi, K Hamdi, M Nouri
PURPOSE: Considering potential roles of soluble receptor for advanced glycation end products (sRAGE) and placental growth factor (PlGF) in ovarian function and embryo implantation, in the present study we have evaluated the association of these factors and also PlGF/sFlt-1 ratio with the ovarian response and implantation rate by dividing patients according to the OSI. METHODS: In a cross-sectional study, 90 infertile women who were undergoing ICSI cycle using long protocol were recruited...
September 23, 2016: Journal of Endocrinological Investigation
Nalini Santanam, Nathaniel Zoneraich, Sampath Parthasarathy
As infertility is intimately associated with endometriosis, the levels of myeloperoxidase (MPO), a leukocyte enzyme and an oxidative stress marker, were determined in a case-control prospective study of 68 women with and without endometriosis undergoing in vitro fertilization in the outpatient fertility center within a tertiary care academic medical center. Measured values included plasma and follicular fluid (FF) concentrations of MPO, plasma estradiol, as well as oocyte quality, fertilization, implantation, and pregnancy rates in these women...
September 22, 2016: Reproductive Sciences
Jufeng Zheng, Yongning Lu, Xianqin Qu, Peng Wang, Luiwen Zhao, Minzhi Gao, Huijuan Shi, Xingliang Jin
INTRODUCTION: Spermatozoa motility is the critical parameter to affect the treatment outcomes during assisted reproductive technologies (ART), but its reproductive capability remains a little informed in condition of severe male factor infertility. This retrospective cohort study aimed to evaluate the effects of reduced sperm motility on the embryological and clinical outcomes in intra-cytoplasmic sperm injection (ICSI) treatment of severe oligozoospermia. PATIENTS AND METHODS: 966 cycles (812 couples) of severe oligozoospermia diagnosed by spermatozoa count ≤ 5 × 106/mL and motile spermatozoa ≤ 2 × 106/mL were divided into four groups in according to the number of motile spermatozoa in one ejaculate on the day of oocyte retrieval (Group B-E)...
2016: PloS One
Pheruza Tarapore, Max Hennessy, Dan Song, Jun Ying, Bin Ouyang, Vinothini Govindarajah, Yuet-Kin Leung, Shuk-Mei Ho
Exposure to xenoestrogens is a probable cause of male infertility in humans. Consumption of high-fat diets and exposure to bisphenol A (BPA) is pervasive in America. Here, we test the hypothesis that gestational exposure to high dietary fats and/or BPA disrupt spermatogenesis in adulthood. Sprague-Dawley rats were fed diets containing 10 kcal% butter fat (AIN), 39 kcal% butter fat (HFB), or 39 kcal% olive oil (HFO), with or without BPA (25μg/kg body weight/day) during pregnancy. One group of male offspring received testosterone (T)- and estradiol-17β (E2)-filled implants or sham-implants from postnatal day (PND)70-210...
September 19, 2016: Reproductive Toxicology
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