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Intracytoplasmic Sperm Injection

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https://www.readbyqxmd.com/read/28520915/ovary-specific-depletion-of-the-nuclear-receptor-nr5a2-compromises-expansion-of-the-cumulus-oophorus-but-not-fertilization-by-icsi
#1
Kalyne Bertolin, Marie-Charlotte Meinsohn, João Suzuki, Jan Gossen, Kristina Schoonjans, Rajesha Duggavathi, Bruce D Murphy
The orphan nuclear receptor, liver receptor homolog-1 (Nr5a2) is widely expressed in mammalian tissues, its ovarian expression is restricted to granulosa cells of activated follicles. We employed the floxed Nr5a2 (Nr5a2f/f) mutant mouse line and two granulosa-specific Cre lines, Amhr2Cre and tgCyp19Cre, to develop two tissue- and time-specific Nr5a2 depletion models, Nr5a2Amhr2-/- and Nr5a2Cyp19-/-. In the Nr5a2Cyp19-/- ovaries, Nr5a2 was depleted in mural granulosa, but not cumulus cells. We induced follicular development in mutant and wild type (control, CON) mice with equine chorionic gonadotropin (eCG) followed 44h later treatment with human chorionic gonadotropin (hCG) to induce ovulation...
May 18, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28513911/sperm-capacitation-pretreatment-positively-impacts-bovine-intracytoplasmic-sperm-injection
#2
L Águila, F Zambrano, M E Arias, Felmer R
The efficiency of intracytoplasmic sperm injection (ICSI) in bovines is low compared to other species due in part to inadequate egg activation and sperm nucleus decondensation after injection. We hypothesized that this low efficiency is due to the lack of complete sperm capacitation, so we evaluated the effects of isobutylmethylxanthine (IBMX) and methyl-β-cyclodextrin (MβCD) on bovine sperm capacitation and on the preimplantation developmental potential of bovine embryos generated by ICSI. Treatment with IBMX and MβCD decreased sperm viability (between 13 to 30%); nevertheless, 0...
May 17, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28503748/cigarette-smoking-induces-only-marginal-changes-in-sperm-dna-methylation-levels-of-patients-undergoing-intracytoplasmic-sperm-injection-treatment
#3
Y Al Khaled, S Tierling, M Laqqan, C Lo Porto, M E Hammadeh
DNA methylation plays important roles in genome stability and regulation of gene expression. This study was designed to determine the influence of cigarette smoking on sperm DNA methylation. From a genome-wide survey on sperm samples, differentially methylated target CpGs should be selected and subjected to local deep bisulphite sequencing. Obtained methylation data are compared to sperm parameters and (ICSI) outcome. Similar to pilot study, samples were subjected to Infinium 450K BeadChip arrays to identify alterations in sperm DNA methylation between smokers and nonsmokers males...
May 14, 2017: Andrologia
https://www.readbyqxmd.com/read/28501369/validation-study-of-the-screenivf-an-instrument-to-screen-women-or-men-on-risk-for-emotional-maladjustment-before-the-start-of-a-fertility-treatment
#4
Henrietta D L Ockhuijsen, Maarten van Smeden, Agnes van den Hoogen, Jacky Boivin
OBJECTIVE: To examine construct and criterion validity of the Dutch SCREENIVF among women and men undergoing a fertility treatment. DESIGN: A prospective longitudinal study nested in a randomized controlled trial. SETTING: University hospital. PATIENT(S): Couples, 468 women and 383 men, undergoing an IVF/intracytoplasmic sperm injection (ICSI) treatment in a fertility clinic, completed the SCREENIVF. MAIN OUTCOME MEASURE(S): Construct and criteria validity of the SCREENIVF...
May 10, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28497461/icsi-outcome-in-patients-with-high-dna-fragmentation-testicular-versus-ejaculated-spermatozoa
#5
M Arafa, A AlMalki, M AlBadr, H Burjaq, A Majzoub, S AlSaid, H Elbardisi
Sperm DNA fragmentation (SDF) has emerged as an important biomarker in the assessment of male fertility potential with contradictory results regarding its effect on ICSI. The aim of this study was to evaluate intracytoplasmic sperm injection (ICSI) outcomes in male patients with high SDF using testicular versus ejaculated spermatozoa. This is a prospective study on 36 men with high-SDF levels who had a previous ICSI cycle from their ejaculates. A subsequent ICSI cycle was performed using spermatozoa retrieved through testicular sperm aspiration...
May 12, 2017: Andrologia
https://www.readbyqxmd.com/read/28497410/could-monopronucleated-icsi-zygotes-be-considered-for-transfer-analysis-through-time-lapse-monitoring-and-pgs
#6
S Mateo, F Vidal, M Parriego, I Rodríguez, V Montalvo, A Veiga, M Boada
PURPOSE: The purpose of this study was to investigate the chromosomal constitution and the developmental potential of intracytoplasmic sperm injection (ICSI) deriving embryos displaying a single pronucleus at the zygote stage. METHODS: Eighty-eight embryos from single pronucleus (1PN) two polar bodies (2PB) ICSI zygotes from 64 preimplantational genetic screening (PGS) cycles (October 2012-December 2014), were retrospectively analyzed. Zygotes were cultured in a time-lapse incubator...
May 11, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28490415/maternal-and-perinatal-characteristics-of-small-for-gestational-age-newborns-ten-year-experience-of-a-single-center
#7
Nihal Şahin Uysal, Çağrı Gülümser, Filiz Bilgin Yanık
OBJECTIVE: The aim of this study was to analyze the maternal and perinatal characteristics of small for gestational age (SGA) newborns compared to appropriate for gestational age (AGA) newborns in singleton pregnancies managed at our hospital between January 2006 and December 2015. MATERIAL AND METHODS: The study (n=456) and control (n=4925) groups included pregnancies resulting in SGA and AGA newborns, respectively. Additionally, two SGA subgroups were defined according to abnormal (n=34) and normal (n=57) Doppler findings...
May 11, 2017: Journal of the Turkish German Gynecological Association
https://www.readbyqxmd.com/read/28483505/post-thaw-recovery-of-rare-or-very-low-concentrations-of-cryopreserved-human-sperm
#8
Martin Kathrins, Nikita Abhyankar, Ohad Shoshany, Juergen Liebermann, Meike Uhler, Gail Prins, Craig Niederberger
OBJECTIVE: To analyze cases in which no sperm could be identified after thawing among cryopreserved samples of rare or very low concentrations of sperm. DESIGN: Retrospective, single-institution, cross-sectional. SETTING: Male infertility clinic. PATIENT(S): We identified couples that underwent intracytoplasmic sperm injection (ICSI) with the use of either ejaculated or testicular cryopreserved-thawed sperm. Inclusion criteria were men with <100,000 total ejaculated sperm or men with azoospermia due to spermatogenic dysfunction who underwent microsurgical testicular sperm extraction with similarly low pre-cryopreservation sperm counts...
May 5, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28483501/fertility-outcomes-after-extended-searches-for-ejaculated-spermatozoa-in-men-with-virtual-azoospermia
#9
Netanella Miller, Tal Biron-Shental, Yael Pasternak, Michael Belenky, Shai Shefi, Pavel Itsykson, Arie Berkovitz
OBJECTIVE: To assess the fertility outcomes of extended searches for ejaculated spermatozoa in men with virtual azoospermia. DESIGN: A retrospective cohort of 242 couples whose male partner suffered from nonobstructive azoospermia and who were treated with the use of intracytoplasmic sperm injection (ICSI). SETTING: Not applicable. PATIENT(S): One hundred forty patients were referred to an extended search in the ejaculate and 102 patients were referred to microsurgical testicular sperm extraction (microTESE)...
May 5, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28482910/pregnancy-rates-of-day-4-and-day-5-embryos-after-culture-in-an-integrated-time-lapse-incubator
#10
Verena Holschbach, Julia Weigert, Jens Erik Dietrich, Sabine Roesner, Markus Montag, Thomas Strowitzki, Bettina Toth
BACKGROUND: The aim of this study was to compare pregnancy rates in patients undergoing IVF/ICSI with embryo transfer after 4 and 5 days of culture in a closed incubation system with integrated time-lapse imaging. METHODS: Out of n = 2207 in vitro fertilization (IVF)/ intracytoplasmic sperm injection (ICSI) cycles performed between January 2011 and April 2016 at a tertiary referral university hospital, a total of n = 599 IVF/ICSI cycles with prolonged embryo culture in an integrated time-lapse system (EmbryoScope(©) (Vitrolife)) until day 4 or 5 were retrospectively analyzed with regard to embryo morphology and pregnancy rates...
May 8, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28479763/microdissection-testicular-sperm-extraction-in-men-with-nonobstructive-azoospermia-experience-of-king-saud-university-medical-city-riyadh-saudi-arabia
#11
Saleh Binsaleh, Dulaim Alhajeri, Khaled Madbouly
OBJECTIVES: Microdissection testicular sperm extraction (micro-TESE) is an optimal technique of sperm extraction for intracytoplasmic sperm injection. This study is to present our experience in micro-TESE and evaluate the relation of its sperm retrieval rate (SRR) with patients' characteristics, testicular functions, and histological parameters as well as previous sperm retrieval interventions. MATERIALS AND METHODS: We retrospectively reviewed records of 255 patients with nonobstructive azoospermia who underwent micro-TESE between 2011 and 2014...
April 2017: Urology Annals
https://www.readbyqxmd.com/read/28479754/effect-of-body-mass-index-on-the-outcome-of-in-vitro-fertilization-intracytoplasmic-sperm-injection-in-women
#12
Manish Banker, Dipesh Sorathiya, Sandeep Shah
BACKGROUND: Obesity, a known epidemic, is a leading cause of various reproductive disorders. Association of body mass index (BMI) with pregnancy outcomes, either ovarian or endometrial, is controversial and least elucidated. AIM: This study aimed to analyze the effect of BMI on in-vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI) outcome in women using self-oocytes, embryos prepared from donor oocytes (DE), or vitrified/frozen embryos (VE) obtained from both the SE and DE groups...
January 2017: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/28479752/is-amh-level-independent-of-age-a-predictor-of-live-birth-in-ivf
#13
Mohar Goswami, Dimitrios Nikolaou
BACKGROUND: Although anti-mullerian hormone (AMH) level is known to predict ovarian reserve, there is conflicting evidence regarding the association between AMH and clinical pregnancy or live birth (LB). AIM: Our aim is to establish if there is any association between AMH and LB considering the effects of age and other relevant confounding factors in predicting LB. SETTINGS AND DESIGN: 200 in-vitro fertilisation (IVF) cycles were retrospectively analysed in a tertiary fertility centre...
January 2017: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/28467764/anovulatory-patients-demonstrate-a-sharp-decline-in-lh-levels-upon-gnrh-antagonist-administration-during-ivf-cycles
#14
Linoy Segal, Ofer Fainaru, Shahar Kol
To evaluate the decrease in luteinizing hormone (LH) levels following gonadotropin-releasing hormone (GnRH) antagonist administration in in vitro fertilization (IVF) cycles, data were retrospectively collected from 305 consecutive IVF or intracytoplasmic sperm injection (ICSI) cycles of patients who underwent ovarian stimulation with gonadotropins and were treated with GnRH antagonist for the prevention of premature luteinization. We compared the percent change in LH concentration from stimulation start to that observed before ovulation triggering in patients with or without anovulation...
April 28, 2017: Rambam Maimonides Medical Journal
https://www.readbyqxmd.com/read/28466604/the-influence-of-male-age-on-treatment-outcomes-and-neonatal-birthweight-following-assisted-reproduction-technology-involving-intracytoplasmic-sperm-injection-icsi-cycles
#15
N-Z Ma, L Chen, L-L Hu, W Dai, Z-Q Bu, Y-P Sun
The aim of this study was to investigate the effect of male age on treatment outcomes and neonatal birthweight following intracytoplasmic sperm injection (ICSI). This study included 2,474 ICSI cycles. Male partners were stratified into 5-year age categories (up to 25, 26-30, 31-35, 36-40 and 41 and up). Multilevel logistic regression was used to evaluate the relationship between male age and treatment outcomes. After adjusting for confounders, we found no difference in the clinical pregnancy rate. However, we observed that the 31- to 35-year group had a higher odds of live birth than that of the >41-year group (aOR 1...
May 3, 2017: Andrologia
https://www.readbyqxmd.com/read/28462402/letrozole-gnrh-antagonist-stimulation-protocol-in-poor-ovarian-responders-undergoing-intracytoplasmic-sperm-injection-cycles-an-rct
#16
Mahbod Ebrahimi, Firouzeh Akbari-Asbagh, Mojgan Ghalandar-Attar
BACKGROUND: Gonadotropin-releasing hormone (GnRH) antagonist protocol has been proposed as a potentially proper option for the patients with limited ovarian reserve. Nevertheless, there is no significant difference in terms of clinical pregnancy between the GnRH antagonist and agonist cycles. The use of aromatase inhibitors such as letrozole was suggested by some studies. OBJECTIVE: The object of this study was to evaluate the efficacy of letrozole co-treatment with GnRH-antagonist protocol in ovarian stimulation of poor responder patients undergoing intracytoplasmic sperm injection...
February 2017: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/28455755/is-early-embryo-development-as-observed-by-time-lapse-microscopy-dependent-on-whether-fresh-or-frozen-sperm-was-used-for-icsi-a-cohort-study
#17
Jessica Eastick, Christos Venetis, Simon Cooke, Ashleigh Storr, Daisy Susetio, Michael Chapman
PURPOSE: The aim of this study was to compare timings of key events of embryo development from those originating from either fresh or cryopreserved ejaculate sperm using time-lapse technology. METHODS: In this retrospective observational cohort study, time-lapse technology was used to monitor 1927 embryos from 234 women undergoing intracytoplasmic sperm injection (ICSI) and utilizing either fresh (n = 172 cycles) or cryopreserved ejaculate sperm (n = 62 cycles) for insemination were included in the study...
April 29, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28455156/pentoxifylline-increase-sperm-motility-in-devitrified-spermatozoa-from-asthenozoospermic-patient-without-damage-chromatin-and-dna-integrity
#18
Ali Nabi, Mohammad Ali Khalili, Farzaneh Fesahat, Alireza Talebi, Saeed Ghasemi-Esmailabad
The freeze-thaw process results in reduced motility, viability and fertilization potential of human spermatozoa. So, a variety of substances were evaluated in order to enhance human sperm resistance to the stress of cryopreservation, such as Pentoxifylline (PTX) for improving the Intracytoplasmic sperm injection (ICSI) outcomes. The aim was to investigate the effect of PTX on sperm parameters and chromatin/DNA integrity of asthenozoospermic semen post vitrification. A total of 30 semen specimens were obtained from infertile men with asthenozoospermia...
April 25, 2017: Cryobiology
https://www.readbyqxmd.com/read/28449121/tri-directional-anaphases-as-a-novel-chromosome-segregation-defect-in-human-oocytes
#19
Jenna Haverfield, Nicola L Dean, Diana Nöel, Gaudeline Rémillard-Labrosse, Veronique Paradis, Isaac-Jacques Kadoch, Greg FitzHarris
STUDY QUESTION: What are the chromosome segregation errors in human oocyte meiosis-I that may underlie oocyte aneuploidy? SUMMARY ANSWER: Multiple modes of chromosome segregation error were observed, including tri-directional anaphases, which we attribute to loss of bipolar spindle structure at anaphase-I. WHAT IS KNOWN ALREADY: Oocyte aneuploidy is common and associated with infertility, but mechanistic information on the chromosome segregation errors underlying these defects is scarce...
June 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28445799/hysteroscopic-polypectomy-prior-to-infertility-treatment-a-cost-analysis-and-systematic-review
#20
REVIEW
Youssef Mouhayar, Ophelia Yin, Sunni L Mumford, James H Segars
The cost of fertility treatment is expensive and interventions that reduce cost can lead to greater efficiency and fewer embryos transferred. Endometrial polyps contribute to infertility and are frequently removed prior to infertility treatment. It is unclear whether polypectomy reduces fertility treatment cost and if so, the magnitude of cost reduction afforded by the procedure. The aim of this study was to determine whether performing office or operative hysteroscopic polypectomy prior to infertility treatment would be cost-effective...
April 13, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
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