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https://www.readbyqxmd.com/read/29774457/vitamin-d-as-a-follicular-marker-of-human-oocyte-quality-and-a-serum-marker-of-in-vitro-fertilization-outcome
#1
Przemysław Ciepiela, Antoni J Dulęba, Ewelina Kowaleczko, Kornel Chełstowski, Rafał Kurzawa
PURPOSE: This study investigated the relationship between the vitamin D [25(OH)D] level in individual follicles and oocyte developmental competence. METHODS: A prospective cohort study in a private infertility center. Infertile women (N = 198) scheduled for intracytoplasmic sperm injection (ICSI) and a single embryo transfer (SET) provided serum samples and 322 follicular fluid (FF) specimens, each from a single follicle on the day of oocyte retrieval. RESULTS: FFs corresponding to successfully fertilized oocytes (following ICSI) contained significantly lower 25(OH)D level compared with those that were not fertilized (28...
May 17, 2018: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29765076/resveratrol-significantly-improves-the-fertilisation-capacity-of-bovine-sex-sorted-semen-by-inhibiting-apoptosis-and-lipid-peroxidation
#2
Chong-Yang Li, Ya-Han Zhao, Hai-Sheng Hao, Hao-Yu Wang, Jin-Ming Huang, Chang-Liang Yan, Wei-Hua Du, Yun-Wei Pang, Pei-Pei Zhang, Yan Liu, Hua-Bin Zhu, Xue-Ming Zhao
The aim of this study was to test the effects of five different concentrations (0, 10-3 , 10-4 , 10-5 , and 10-6  M) of resveratrol (Res) supplementation in bull sperm washing and fertilisation medium on levels of reactive oxygen species (ROS), phosphatidylserine (PS) externalisation, mitochondrial membrane potential (Δψm), ATP and malondialdehyde (MDA), acrosomal integrity, blastocyst rate, and blastocyst quality after in vitro fertilisation (IVF). The results for sex-sorted sperm from three bulls showed: (1) ROS and MDA levels in 10-3  M and 10-4  M Res groups were significantly lower than those of controls (P < 0...
May 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29764212/the-clinical-application-of-single-sperm-based-snp-haplotyping-for-pgd-of-osteogenesis-imperfecta
#3
Linjun Chen, Zhenyu Diao, Zhipeng Xu, Jianjun Zhou, Guijun Yan, Haixiang Sun
Osteogenesis imperfecta (OI) is a genetically heterogeneous disorder, presenting either autosomal dominant, autosomal recessive or X-linked inheritance patterns. The majority of OI cases are autosomal dominant and are caused by heterozygous mutations in either the COL1A1 or COL1A2 gene. In these dominant disorders, allele dropout (ADO) can lead to misdiagnosis in preimplantation genetic diagnosis (PGD). Polymorphic markers linked to the mutated genes have been used to establish haplotypes for identifying ADO and ensuring the accuracy of PGD...
May 15, 2018: Systems Biology in Reproductive Medicine
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
#4
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/29754425/effects-of-oestradiol-for-luteal-phase-support-in-fresh-embryo-transfer-cycles-a-retrospective-cohort-study
#5
Wei Zhao, Yifeng Liu, Peng Xu, Yiqing Wu, Kai Chen, Xiaoyan Guo, Fan Zhang, Yun Huang, Linlin Zhu, Runjv Zhang, Dan Zhang
OBJECTIVE: Any benefit of oestradiol supplementation with progesterone for luteal support after fresh embryo transfer in in vitro fertilisation/intracytoplasmic sperm injection (IVF/ICSI) cycles remains controversial. In this study, we further addressed this question in cycles using gonadotropin-releasing hormone (GnRH) agonist for ovarian stimulation. DESIGN: A retrospective cohort study in a tertiary teaching and research hospital. PATIENT(S): A total of 1602 patients were given oestradiol valerate (E) in addition to progesterone(P) as luteal support...
May 12, 2018: Clinical Endocrinology
https://www.readbyqxmd.com/read/29746897/the-role-of-ca-2-in-oocyte-activation-during-in-vitro-fertilization-insights-into-potential-therapies-for-rescuing-failed-fertilization
#6
REVIEW
Karl Swann
At fertilization the mature mammalian oocyte is activated to begin development by a sperm-induced series of increases in the cytosolic free Ca2+ concentration. These so called Ca2+ oscillations, or repetitive Ca2+ , are also seen after intracytoplasmic sperm injection (ICSI) and are primarily triggered by a sperm protein called phospholipase Czeta (PLCζ). Whilst ICSI is generally an effective way to fertilizing human oocytes, there are cases where oocyte activation fails to occur after sperm injection. Many such cases appear to be associated with a PLCζ deficiency...
May 7, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29744475/microscopic-varicocelectomy-as-a-treatment-option-for-patients-with-severe-oligospermia
#7
Chirag Gupta, Arun Chinchole, Rupin Shah, Hemant Pathak, Deepa Talreja, Ankit Kayal
Purpose: Many studies have shown improved semen parameters after varicocele surgery; however, the benefit in terms of improved pregnancy rates and live births is still disputed in cases of severe oligoasthenozoospermia (OAS). The present study evaluated the outcome of microscopic subinguinal varicocelectomy in terms of the spontaneous pregnancy rate in patients with severe OAS. Materials and Methods: This was a retrospective, observational, analytic study of 56 men with OAS who underwent microscopic varicocelectomy at our center between 2008 and 2015...
May 2018: Investigative and Clinical Urology
https://www.readbyqxmd.com/read/29744474/utilization-of-cryopreserved-sperm-cells-based-on-the-indication-for-storage
#8
Graham Luke Machen, Stephanie E Harris, Erin T Bird, Monica L Brown, Dale A Ingalsbe, Milaida M East, Michelle Reyes, Thomas J Kuehl
Purpose: Cryopreservation of sperm from human semen has been available since the 1950s. The actual utilization of available cryopreservation technology has been infrequently reported. We set out to examine the utilization and outcomes of cryopreserved sperm cells based on the indication for storage. Materials and Methods: A dataset was developed from retrospective review. The purposes for cryopreservation, eventual utilization, and outcomes of use for insemination were recorded...
May 2018: Investigative and Clinical Urology
https://www.readbyqxmd.com/read/29739353/changes-in-serum-prolactin-level-during-intracytoplasmic-sperm-injection-and-effect-on-clinical-pregnancy-rate-a-prospective-observational-study
#9
Ahmed Kamel, Ayman A Halim, Mohamed Shehata, Salwa AlFarra, Yahia El-Faissal, Wafaa Ramadan, Ahmed M Hussein
BACKGROUND: Transient hyperprolactinemia was proven to adversely affect the outcome of IVF. We aimed to identify changes in serum prolactin levels in patients undergoing ICSI, and to evaluate the effect of these changes on the clinical pregnancy rate. METHODS: A prospective observational study included 90 patients scheduled for ICSI cycles. In each case 4 serum samples were collected during the cycle (midluteal, before ovum pick up procedure (OPU), 2 h after OPU, and before embryo transfer)...
May 9, 2018: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29738164/-seminal-plasma-anti-m%C3%A3-llerian-hormone-and-inhibin-b-and-serum-inhibin-b-in-predicting-the-outcome-of-routine-ivf-fertilization
#10
Yan-Fei Wang, Xin Wu, Rong Hu, Fei-Miao Wang, Shao-Tong Jia, Li-Guo Pei, Hui Wang, Xiao-E Ouyang, Ting Hu, Yun-Xing Fu
Objective: To analyze the correlations of seminal plasma (sp) anti-Müllerian hormone (spAMH) and inhibin B (spINHB) and serum INHB (serINHB) with semen parameters in oligoasthenospermia patients and explore their value in predicting the outcome of routine in vitro fertilization (IVF). METHODS: We obtained the levels of spAMH, spINHB and serINHB as well as semen parameters from 88 infertile males undergoing IVF due to oligoasthenospermia or female uterine tubal factors from August 2016 to February 2017...
November 2017: Zhonghua Nan Ke Xue, National Journal of Andrology
https://www.readbyqxmd.com/read/29734404/effect-of-tert-butyl-hydroquinone-on-bull-semen-cryopreservation
#11
S M H Hussaini, M Zhandi, A Z Shahneh, M Sharafi, A Nejati-Javaremi, A Yousefi, M Emamverdi, M A M M Shehab-El-Deen, F M Pastor
BACKGROUND: Many studies have been shown that freezing induced oxidative stress has detrimental effect on post-thaw sperm quality. OBJECTIVE: This study was conducted to investigate the effect of tert-butyl hydroquinone (tBHQ) on bull semen crtopreservation. MATERIALS AND METHODS: In this study, four different levels of tBHQ [Optidyl containing zero (T0), 2.5 (T2.5), 5 (T5), and 7.5 µM (T7.5) tBHQ] was used to study the effect of tBHQ on freezability of bull semen...
September 2017: Cryo Letters
https://www.readbyqxmd.com/read/29733332/ccdc87-is-critical-for-sperm-function-and-male-fertility
#12
Tongtong Wang, Qianqian Yin, Xuehao Ma, Ming-Han Tong, Yuchuan Zhou
Male infertility has become an increasingly common health concern in recent years. Apart from environmental factors, nutrition, lifestyle, and sexually transmitted diseases, genetic defects are important causes of male infertility. Many genes have been demonstrated to be associated with male infertility. However, the roles of some functional genes in infertility, especially those that are specifically expressed in the reproductive system, remain to be elucidated. Here, we demonstrated that the testis-specific gene coiled-coil domain-containing 87 (Ccdc87) is critical for male fertility...
May 3, 2018: Biology of Reproduction
https://www.readbyqxmd.com/read/29732632/effect-of-cumulus-cells-and-sperm-concentration-on-fertilization-and-development-of-pig-oocytes
#13
R Li, Y Liu, H S Pedersen, H Callesen
Effect of sperm concentrations and cumulus cells (CCs) on porcine IVF was re-evaluated using current improved IVM and IVC system. Our results showed that both CCs and sperm concentration had significant effect on penetration rate, frequency of polyspermy and embryonic development. The best IVF results were obtained with oocytes with CCs fertilized with 0.5 × 105 sperm/ml. Such an IVP system works on both sow and gilt oocytes.
May 6, 2018: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/29725911/continuous-embryo-culture-elicits-higher-blastulation-but-similar-cumulative-delivery-rates-than-sequential-a-large-prospective-study
#14
Danilo Cimadomo, C Scarica, R Maggiulli, G Orlando, D Soscia, L Albricci, S Romano, F Sanges, F M Ubaldi, L Rienzi
PURPOSE: To assess whether continuous embryo culture involves better embryological and/or clinical outcomes than sequential. METHODS: Prospective study at a private IVF center. All consecutive IVF cycles (September 2013-2015) fulfilling the inclusion criteria underwent embryo culture in either Continuous-Single-Culture-Media (CSCM, n = 972) or sequential media (Quinn's Advantage, n = 514), respectively. ICSI, blastocyst culture in either standard (MINC) or undisturbed (Embryoscope) incubation, transfer (until September 2016), and pregnancy follow-up (until September 2017) were performed...
May 3, 2018: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29724695/assisted-reproductive-technologies-conundrums-and-challenges
#15
EDITORIAL
Rakhi Ghoshal
A few weeks ago, a leading multi-city IVF clinic published an advertisement in a leading news daily. The advertisement sounded ominous, "The longer you wait, the lower your chances" - it referred to one's chances of getting pregnant. The subtext was far too easy to decipher: the content was thoroughly gendered and directed solely at women, particularly at career-oriented women who delay their marriages and childbearing plans far too long, supposedly lowering their fertility in the process. It also sounded benevolent in its attempt to warn these "erring" women...
April 2018: Indian Journal of Medical Ethics
https://www.readbyqxmd.com/read/29718716/complex-chromosomal-aberrations-in-a-fetus-originating-from-oocytes-with-smooth-endoplasmic-reticulum-ser-aggregates
#16
Ioannis A Sfontouris, George T Lainas, Tryfon G Lainas, Efthimios Faros, Maria Banti, Katerina Kardara, Katerina Anagnostopoulou, Harris Kontos, George K Petsas, Efstratios M Kolibianakis
The presence of smooth endoplasmic reticulum aggregates (SERa) in the ooplasm is considered as the most severe oocyte dysmorphism due to its serious and potentially lethal outcomes in offspring. In the present case report, a couple underwent their first intracytoplasmic sperm injection (ICSI) cycle using a gonadotrophin releasing hormone (GnRH) antagonist protocol, followed by fetal ultrasound scanning and amniocentesis. SERa were observed in all oocytes retrieved. A singleton pregnancy was established. The second trimester fetal ultrasound scan revealed a female fetus with overlapping fingers in both hands, and amniocentesis was performed for the detection of chromosomal abnormalities...
May 2, 2018: Systems Biology in Reproductive Medicine
https://www.readbyqxmd.com/read/29716588/prostaglandin-e2-involvement-in-mammalian-female-fertility-ovulation-fertilization-embryo-development-and-early-implantation
#17
REVIEW
Jean Damascene Niringiyumukiza, Hongcai Cai, Wenpei Xiang
BACKGROUND: Infertility in mammalian females has been a challenge in reproductive medicine. The causes of female infertility include anovulation, ovulated oocyte defects, abnormal fertilization, and insufficient luteal support for embryo development, as well as early implantation. Ovulation induction, in vitro fertilization and luteal support regimens have been performed for decades to increase fertility rates. The identification of proteins and biochemical factors involved in female reproduction is essential to further increase female fertility rates...
May 1, 2018: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/29713550/role-of-varicocele-treatment-in-assisted-reproductive-technologies
#18
REVIEW
Mehmet G Sönmez, Ahmet H Haliloğlu
Objective: In this review, we investigate the advantage of varicocele repair prior to assisted reproductive technologies (ART) for infertile couples and provide cost analysis information. Materials and methods: We searched the following electronic databases: PubMed, Medline, Excerpta Medica Database (Embase), Cumulative Index to Nursing and Allied Health Literature (CINAHL). The following search strategy was modified for the various databases and search engines: 'varicocele', 'varicocelectomy', 'varicocele repair', 'ART', ' in vitro fertilisation (IVF)', 'intracytoplasmic sperm injection (ICSI)'...
March 2018: Arab Journal of Urology
https://www.readbyqxmd.com/read/29712617/negative-effects-of-oxidative-stress-in-bovine-spermatozoa-on-in-vitro-development-and-dna-integrity-of-embryos
#19
L Bittner, S Wyck, C Herrera, M Siuda, C Wrenzycki, B van Loon, H Bollwein
Oxidative stress in spermatozoa has effects on subsequent embryo development. The aim of the present study was to elucidate whether sperm oxidative stress results in increased DNA damage in the embryo. To this end, bovine spermatozoa were incubated for 1h at 37°C without or with 100µM H2O2, resulting in non-oxidised (NOX-S) and oxidised (OX-S) spermatozoa respectively. Non-incubated spermatozoa served as the control group (CON-S). After IVF, developmental rates 30, 46 and 60h and 7 days after IVF were assessed...
May 1, 2018: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/29709727/clinical-outcomes-of-a-vitrified-donor-oocyte-programme-a-single-uk-centre-experience
#20
S Seshadri, W Saab, H Exeter, E Drew, A Petrie, M Davies, P Serhal
OBJECTIVE: To assess the survival rate of vitrified oocytes used in an egg recipient programme and compare the clinical outcomes of pregnancy and live-birth rates per warmed oocyte with fresh autologous oocytes. The differences in the obstetrical outcomes between the two groups were also studied. DESIGN: A prospective case control study from a single in-vitro fertilisaton (IVF) Centre in UK SETTING: Centre of Reproductive and Genetic Health (CRGH), London POPULATION: Vitrified oocytes from egg donors and autologous fresh oocytes from patients attending for an IVF cycle METHODS: The study group consisted of 1490 vitrified oocytes, which were obtained from 145 egg donors who underwent a stimulation cycle at CRGH Centre...
April 22, 2018: European Journal of Obstetrics, Gynecology, and Reproductive Biology
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