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https://www.readbyqxmd.com/read/28098358/subclinical-alteration-of-the-cervical-vaginal-microbiome-in-women-with-idiopathic-infertility
#1
Giuseppina Campisciano, Fiorella Florian, Angela D'Eustacchio, David Stanković, Giuseppe Ricci, Manola Comar
Biomarkers have a wide application in research and clinic, they help to choose the correct treatment for diseases. Recent studies, addressing the vaginal microbiome using next generation sequencing (NGS), reported the involvement of bacterial species in infertility. We compared the vaginal microbiome of idiopathic infertility diagnosed women with that of healthy, non-idiopathic infertile and bacterial vaginosis affected women, to identify bacterial species suitable as biomarkers. Information on microorganisms was obtained from the V3-16S rDNA sequencing of cervical-vaginal fluids of 96 women using the Ion Torrent platform...
January 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28070708/delayed-treatment-of-undescended-testes-may-promote-hypogonadism-and-infertility
#2
Julia Rohayem, Alessandra Luberto, Eberhard Nieschlag, Michael Zitzmann, Sabine Kliesch
CONTEXT: Undescended testes at birth may be caused by testosterone deficiency during fetal development. It is unclear whether the process of failed descent contributes to permanent endocrine impairment. OBJECTIVES: To evaluate the impact of age at treatment of undescended testes on endocrine and spermatogenic testicular function in middle-aged men. PATIENTS AND METHODS: Reproductive hormone and semen data of 357 men with previously undescended testes were evaluated with respect to age at correction of testicular position and compared to those of 709 controls with eutopic testes at birth and normozoospermia...
January 9, 2017: Endocrine
https://www.readbyqxmd.com/read/28058611/clinical-predictors-of-failing-one-dose-of-methotrexate-for-ectopic-pregnancy-after-in-vitro-fertilization
#3
Paula C Brady, Stacey A Missmer, Leslie V Farland, Elizabeth S Ginsburg
PURPOSE: The aim of this study is to investigate the clinical predictors of failure of a single dose of methotrexate (MTX) for management of ectopic pregnancy after in vitro fertilization (IVF). METHODS: A retrospective cohort study was performed of women who conceived ectopic pregnancies following fresh or frozen IVF cycles at an academic infertility clinic between 2007 and 2014, and received intramuscular MTX (50 mg/m(2)). Successful single-dose MTX treatment was defined as a serum beta-human chorionic gonadotropin (hCG) decline ≥15% between days 4 and 7 post-treatment...
January 5, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28057770/neuroendocrine-integration-of-nutritional-signals-on-reproduction
#4
Maggie Corr Evans, Greg Anderson
Reproductive function in mammals is energetically costly and therefore tightly regulated by nutritional status. To enable this integration of metabolic and reproductive function, information regarding peripheral nutritional status must be relayed centrally to the gonadotropin-releasing hormone (GnRH) neurons that drive reproductive function. The metabolically relevant hormones leptin, insulin and ghrelin have been identified as key mediators of this 'metabolic control of fertility'. However, the neural circuitry through which they act to exert their control over GnRH drive remains incompletely understood...
January 5, 2017: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/28049832/forkhead-box-a2-foxa2-is-essential-for-uterine-function-and-fertility
#5
Andrew M Kelleher, Wang Peng, James K Pru, Cindy A Pru, Francesco J DeMayo, Thomas E Spencer
Establishment of pregnancy is a critical event, and failure of embryo implantation and stromal decidualization in the uterus contribute to significant numbers of pregnancy losses in women. Glands of the uterus are essential for establishment of pregnancy in mice and likely in humans. Forkhead box a2 (FOXA2) is a transcription factor expressed specifically in the glands of the uterus and is a critical regulator of postnatal uterine gland differentiation in mice. In this study, we conditionally deleted FOXA2 in the adult mouse uterus using the lactotransferrin Cre (Ltf-Cre) model and in the neonatal mouse uterus using the progesterone receptor Cre (Pgr-Cre) model...
January 3, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28043348/the-value-of-trans-scrotal-ultrasonography-at-bull-breeding-soundness-evaluation-bbse-the-relationship-between-testicular-parenchymal-pixel-intensity-and-semen-quality
#6
Martin Tomlinson, Amy Jennings, Alastair Macrae, Isabelle Truyers
Bull breeding soundness evaluation (BBSE) is commonly undertaken to identify bulls that are potentially unfit for use as breeding sires. Various studies worldwide have found that approximately 20% of the bulls fail their routine prebreeding BBSE and are therefore considered subfertile. Multiple articles describe the use of testicular ultrasound as a noninvasive aid in the identification of specific testicular and epididymal lesions. Two previous studies have hypothesized a correlation between ultrasonographic testicular parenchymal pixel intensity (PI) and semen quality; however to date, no published studies have specifically examined this link...
February 2017: Theriogenology
https://www.readbyqxmd.com/read/28007790/the-effect-of-expressive-writing-intervention-for-infertile-couples-a-randomized-controlled-trial
#7
Yoon Frederiksen, Mia Skytte O'Toole, Mimi Y Mehlsen, Benedicte Hauge, Helle Olesen Elbaek, Robert Zachariae, Hans Jakob Ingerslev
STUDY QUESTION: Is expressive writing intervention (EWI) efficacious in reducing distress and improving pregnancy rates for couples going through ART treatment? SUMMARY ANSWER: Compared to controls, EWI statistically significantly reduced depressive symptoms but not anxiety and infertility-related distress. WHAT IS KNOWN ALREADY: ART treatment is considered stressful. So far, various psychological interventions have been tested for their potential in reducing infertility-related distress and the results are generally positive...
December 21, 2016: Human Reproduction
https://www.readbyqxmd.com/read/28006656/disruption-of-serinc1-which-facilitates-serine-derived-lipid-synthesis-fails-to-alter-macrophage-function-lymphocyte-proliferation-or-autoimmune-disease-susceptibility
#8
Edward P F Chu, Colleen M Elso, Abigail H Pollock, May A Alsayb, Leanne Mackin, Helen E Thomas, Thomas W H Kay, Pablo A Silveira, Ashley S Mansell, Katharina Gaus, Thomas C Brodnicki
During immune cell activation, serine-derived lipids such as phosphatidylserine and sphingolipids contribute to the formation of protein signaling complexes within the plasma membrane. Altering lipid composition in the cell membrane can subsequently affect immune cell function and the development of autoimmune disease. Serine incorporator 1 (SERINC1) is a putative carrier protein that facilitates synthesis of serine-derived lipids. To determine if SERINC1 has a role in immune cell function and the development of autoimmunity, we characterized a mouse strain in which a retroviral insertion abolishes expression of the Serinc1 transcript...
December 19, 2016: Molecular Immunology
https://www.readbyqxmd.com/read/27990271/recent-advances-in-understanding-managing-male-infertility
#9
REVIEW
Jared M Bieniek, Kirk C Lo
Male infertility remains a struggle to definitively diagnose and treat with many men labelled as "idiopathic infertility" and eventually requiring assisted reproductive techniques.  Along those lines, research groups are continuing to explore current social and environmental factors, including the obesity epidemic, and their effects on male fertility potential.  Novel biomarkers of natural fertility status and azoospermia etiology have additionally seen recent attention with ACRV1 and TEX101/ECM1 assays either currently or soon to be commercially available...
2016: F1000Research
https://www.readbyqxmd.com/read/27988256/oocyte-competence-in-women-with-polycystic-ovary-syndrome
#10
REVIEW
Stefano Palomba, Jessica Daolio, Giovanni Battista La Sala
Polycystic ovary syndrome (PCOS) is the most common endocrine disorder in women of reproductive age and affects fertility and pregnancy in cases of oligoanovulation. Ovulation induction is often used to treat anovulatory patients with PCOS, but many of these women fail to conceive and resort to assisted reproductive technologies. Alterations in oocyte competence (OC) are considered potential causative factors for subfertility in women with PCOS. In this review we present and critically assess all recent clinical and experimental data regarding OC in women with PCOS...
December 14, 2016: Trends in Endocrinology and Metabolism: TEM
https://www.readbyqxmd.com/read/27981253/efficacy-of-intrauterine-infusion-of-granulocyte-colony-stimulating-factor-on-patients-with-history-of-implantation-failure-a-randomized-control-trial
#11
Maryam Eftekhar, Sepideh Miraj, Maryam Farid Mojtahedi, Nosrat Neghab
BACKGROUND: Although pregnancy rate in in vitro fertilization-embryo transfer (IVF-ET) cycles has been increased over the preceding years, but the majority of IVF-ET cycles still fail. Granulocyte colony stimulating factor (GCSF) is a glycoprotein that stimulates cytokine growth factor and induces immune system which may improve pregnancy rate in women with history of implantation failure. OBJECTIVE: The aim of this study was to evaluate GCSF ability to improve pregnancy rate in women with history of implantation failure...
November 2016: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/27940159/dmrt1-is-necessary-for-male-sexual-development-in-zebrafish
#12
Kaitlyn A Webster, Ursula Schach, Angel Ordaz, Jocelyn S Steinfeld, Bruce W Draper, Kellee R Siegfried
The dmrt1 (doublesex and mab-3 related transcription factor 1) gene is a key regulator of sex determination and/or gonadal sex differentiation across metazoan animals. This is unusual given that sex determination genes are typically not well conserved. The mechanisms by which zebrafish sex is determined have remained elusive due to the lack of sex chromosomes and the complex polygenic nature of sex determination in domesticated strains. To investigate the role of dmrt1 in zebrafish sex determination and gonad development, we isolated mutations disrupting this gene...
December 8, 2016: Developmental Biology
https://www.readbyqxmd.com/read/27932549/proteolytic-degradation-of-heat-shock-protein-a2-occurs-in-response-to-oxidative-stress-in-male-germ-cells-of-the-mouse
#13
Elizabeth G Bromfield, R John Aitken, Eileen A McLaughlin, Brett Nixon
STUDY QUESTION: Does oxidative stress compromise the protein expression of heat shock protein A2 (HSPA2) in the developing germ cells of the mouse testis? SUMMARY ANSWER: Oxidative stress leads to the modification of HSPA2 by the lipid aldehyde 4-hydroxynonenal (4HNE) and initiates its degradation via the ubiquitin-proteasome system. WHAT IS KNOWN ALREADY: Previous work has revealed a deficiency in HSPA2 protein expression within the spermatozoa of infertile men that have failed fertilization in a clinical setting...
December 8, 2016: Molecular Human Reproduction
https://www.readbyqxmd.com/read/27926972/management-of-endometriosis-in-the-infertile-patient
#14
Edgardo Somigliana, Paola Vigano, Laura Benaglia, Andrea Busnelli, Nicola Berlanda, Paolo Vercellini
The management of endometriosis-related infertility remains debated. However, in recent years, the role of in vitro fertilization (IVF) has progressively grown. Reasons to explain this change include (1) the improvement of the effectiveness and safety of IVF, (2) the raised awareness of the modest effectiveness of surgery, (3) the inherent risks of surgery including in particular the damage to the ovarian reserve when ovarian endometriomas have to be removed, (4) the ineffectiveness of intrauterine insemination and the possible risks of endometriosis progression associated with the use of this technique...
December 7, 2016: Seminars in Reproductive Medicine
https://www.readbyqxmd.com/read/27926641/vaginal-hysterectomy-for-treatment-of-cervical-ectopic-pregnancy
#15
Roa Alammari, Renee Thibodeau, Oz Harmanli
BACKGROUND: Cervical ectopic pregnancy can lead to catastrophic hemorrhage, and may be managed conservatively with intra-amniotic methotrexate (MTX), systemic MTX, or both; surgical evacuation with or without balloon tamponade; and uterine artery embolization. However, some patients require hysterectomy, which has traditionally been performed abdominally. CASE: A 39-year-old parous woman was diagnosed with cervical ectopic pregnancy at an estimated 7 1/7 weeks of gestation...
January 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27914154/short-and-long-term-efficacy-of-laparoscopic-ovarian-diathermy-in-women-with-polycystic-ovary-syndrome
#16
Rita Luz, Joana Barros, Ana Aguiar, Cátia Rodrigues, Ana Paula Soares, Joaquim Nunes, Sandra Sousa, Carlos Calhaz-Jorge
INTRODUCTION: Polycystic ovary syndrome is the most frequent cause of anovulatory infertility and management involves a multistep approach. Laparoscopic ovarian diathermy is accepted as a second-line treatment of patients who failed to respond to clomiphene citrate. The aims of this study were to determine the efficacy of this technique at short and long-term and to perform an analysis of predictive factors of spontaneous pregnancy. MATERIAL AND METHODS: This retrospective study involved 76 women who underwent laparoscopic ovarian diathermy between 2004 and 2013 in a university hospital...
August 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/27907897/cost-effectiveness-of-embryo-transfer-strategies-a-decision-analytic-model-using-long-term-costs-and-consequences-of-singletons-and-multiples-born-as-a-consequence-of-ivf
#17
M M J van Heesch, A D I van Asselt, J L H Evers, M A H B M van der Hoeven, J C M Dumoulin, C E M van Beijsterveldt, G J Bonsel, R H M Dykgraaf, J B van Goudoever, C Koopman-Esseboom, W L D M Nelen, K Steiner, P Tamminga, N Tonch, H L Torrance, C D Dirksen
STUDY QUESTION: What is the cost-effectiveness of elective single embryo transfer (eSET) versus double embryo transfer (DET) strategies from a societal perspective, when applying a time horizon of 1, 5 and 18 years? SUMMARY ANSWER: From a short-term perspective (1 year) it is cost-effective to replace DET with single embryo transfer; however when intermediate- (5 years) and long-term (18 years) costs and consequences are incorporated, DET becomes the most cost-effective strategy, given a ceiling ratio of €20 000 per quality-adjusted life years (QALY) gained...
November 2016: Human Reproduction
https://www.readbyqxmd.com/read/27906881/stem-cells-and-clinical-practice-new-advances-and-challenges-at-the-time-of-emerging-problems-with-induced-pluripotent-stem-cell-therapies
#18
Mariusz Z Ratajczak, Kamila Bujko, Wojciech Wojakowski
Humans, like other species that reproduce sexually, originate from a fertilized oocyte (zygote), which is a totipotent stem cell giving rise to an adult organism. During the process of embryogenesis, stem cells at different levels of the developmental hierarchy establish all 3 germ layers and give rise to tissue‑committed stem cells, which are responsible for rejuvenation of a given tissue or organ. The robustness of the stem cell compartment is one of the major factors that directly impact life quality as well as lifespan...
November 10, 2016: Polskie Archiwum Medycyny Wewnętrznej
https://www.readbyqxmd.com/read/27881734/nlrp2-controls-age-associated-maternal-fertility
#19
Anna A Kuchmiy, Jinke D'Hont, Tino Hochepied, Mohamed Lamkanfi
Nucleotide-binding domain and leucine-rich repeat (NLR) proteins are well-known for their key roles in the immune system. Ectopically expressed NLRP2 in immortalized cell lines assembles an inflammasome and inhibits activation of the proinflammatory transcription factor NF-κB, but the physiological roles of NLRP2 are unknown. Here, we show that Nlrp2-deficient mice were born with expected Mendelian ratios and that Nlrp2 was dispensable for innate and adaptive immunity. The observation that Nlrp2 was exclusively expressed in oocytes led us to explore the role of Nlrp2 in parthenogenetic activation of oocytes...
December 12, 2016: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/27876811/unlocking-sperm-chromatin-at-fertilization-requires-a-dedicated-egg-thioredoxin-in-drosophila
#20
Samantha Tirmarche, Shuhei Kimura, Raphaëlle Dubruille, Béatrice Horard, Benjamin Loppin
In most animals, the extreme compaction of sperm DNA is achieved after the massive replacement of histones with sperm nuclear basic proteins (SNBPs), such as protamines. In some species, the ultracompact sperm chromatin is stabilized by a network of disulfide bonds connecting cysteine residues present in SNBPs. Studies in mammals have established that the reduction of these disulfide crosslinks at fertilization is required for sperm nuclear decondensation and the formation of the male pronucleus. Here, we show that the Drosophila maternal thioredoxin Deadhead (DHD) is specifically required to unlock sperm chromatin at fertilization...
November 23, 2016: Nature Communications
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