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IVF Laboratory

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https://www.readbyqxmd.com/read/28923286/abnormally-fertilized-oocytes-can-result-in-healthy-live-births-improved-genetic-technologies-for-preimplantation-genetic-testing-can-be-used-to-rescue-viable-embryos-in-in-vitro-fertilization-cycles
#1
Antonio Capalbo, Nathan Treff, Danilo Cimadomo, Xin Tao, Susanna Ferrero, Alberto Vaiarelli, Silvia Colamaria, Roberta Maggiulli, Giovanna Orlando, Catello Scarica, Richard Scott, Filippo Maria Ubaldi, Laura Rienzi
OBJECTIVE: To test whether abnormally fertilized oocyte (AFO)-derived blastocysts are diploid and can be rescued for clinical use. DESIGN: Longitudinal-cohort study from January 2015 to September 2016 involving IVF cycles with preimplantation genetic testing for aneuploidy (PGT-A). Ploidy assessment was incorporated whenever a blastocyst from a monopronuclear (1PN) or tripronuclear zygote (2PN + 1 smaller PN; 2.1 PN) was obtained. SETTING: Private IVF clinics and genetics laboratories...
September 15, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28874259/outcomes-from-a-university-based-low-cost-in%C3%A2-vitro-fertilization-program-providing-access-to-care-for-a-low-resource-socioculturally-diverse-urban-community
#2
Christopher N Herndon, Yanett Anaya, Martha Noel, Hakan Cakmak, Marcelle I Cedars
OBJECTIVE: To report on outcomes from a university-based low-cost and low-complexity IVF program using mild stimulation approaches and simplified protocols to provide basic access to ART to a socioculturally diverse low-income urban population. DESIGN: Retrospective cohort study. SETTING: Academic infertility center. PATIENT(S): Sixty-five infertile couples were enrolled from a county hospital serving a low-resource largely immigrant population...
September 2, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28872129/bottlenose-dolphin-tursiops-truncatus-spermatozoa-collection-cryopreservation-and-heterologous-in-vitro-fertilization
#3
María Jesús Sánchez-Calabuig, Francisco Alberto García-Vázquez, Ricardo Laguna-Barraza, Carlos Barros-García, Daniel García-Parraga, Dimitrios Rizos, Alfonso Gutiérrez Adan, José Félix Pérez-Gutíerrez
The use of cryopreserved dolphin spermatozoa facilitates the exchange of genetic material between aquatic parks and makes spermatozoa accessible to laboratories for studies to further our understanding of marine mammal reproduction. Heterologous IVF, a replacement for homologous IVF, could provide a means to test the sperm fertility potential; to study gamete physiology and early embryo development; and to avoid the use of valuable dolphin oocytes, which are difficult to obtain. Here, we present protocols that have been successfully used to collect and cryopreserve dolphin spermatozoa...
August 21, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28854581/unexplained-recurrent-miscarriages-are-associated-with-an-aberrant-sperm-protamine-mrna-content
#4
Nina Rogenhofer, Johannes Ott, Adrian Pilatz, Julia Wolf, Christian J Thaler, Lisa Windischbauer, Undraga Schagdarsurengin, Klaus Steger, Viktoria von Schönfeldt
STUDY QUESTION: Are unexplained recurrent miscarriages associated with abnormal protamine-1 and protamine-2 mRNA levels in spermatozoa? SUMMARY ANSWER: Both protamine-1 and protamine-2 mRNA levels as well as the protamine-1 to protamine-2 mRNA ratio in spermatozoa from men whose female partners experienced two or more consecutive miscarriages were significantly different compared to those from both healthy control men and subfertile couples undergoing IVF/ICSI. WHAT IS KNOWN ALREADY: Aberrant sperm protamine ratios are known to be associated with male-factor infertility...
August 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28758852/dehydroepiandrosterone-supplementation-in-women-undergoing-assisted-reproductive-technology-with-poor-ovarian-response-a-prospective-case-control-study
#5
Haifa A Al-Turki
Objective The effects of dehydroepiandrosterone (DHEA) supplementation in Saudi Arabian women with poor ovarian response (POR) is presently unknown. The present study aimed to assess the benefits of DHEA supplementation in women undergoing in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI). Methods This was a prospective case-control study involving 62 women who were diagnosed with POR and underwent IVF/ICSI between January 2012 and June 2016. The positive influence of DHEA in 34 women, compared with 28 women without supplementation, was defined as improvements in the number of oocytes retrieved, the fertilization rate, the number of grade I embryos generated and the pregnancy rate...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28756898/paving-the-way-for-a-gold-standard-of-care-for-infertility-treatment-improving-outcomes-through-standardization-of-laboratory-procedures
#6
REVIEW
William Schoolcraft, Marcos Meseguer
Infertility affects over 70 million couples globally. Access to, and interest in, assisted reproductive technologies is growing worldwide, with more couples seeking medical intervention to conceive, in particular by IVF. Despite numerous advances in IVF techniques since its first success in 1978, almost half of the patients treated remain childless. The multifactorial nature of IVF treatment means that success is dependent on many variables. Therefore, it is important to examine how each variable can be optimized to achieve the best possible outcomes for patients...
July 14, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28715980/clinical-aspects-of-infertile-47-xyy-patients-a-retrospective-study
#7
Parnaz Borjian Boroujeni, Marjan Sabbaghian, Ahmad Vosough Dizaji, Shabnam Zarei Moradi, Navid Almadani, Faranak Mohammadpour Lashkari, Mohamad Reza Zamanian, Anahita Mohseni Meybodi
47,XYY syndrome is a sex chromosomal anomaly in men, which may be associated with infertility and has an incidence of 0.1% of male births. The clinical and paraclinical characteristics of men suffering from this anomaly have not been fully described. In this retrospective study, we present 37 cases of 47,XYY infertile men with sperm counts varying from normal to azoospermia, referred to the Genetics Laboratory at the Royan Institute, Iran. Thirteen individuals were mosaic and 24 non-mosaics. Non-mosaic patients were classified as azoospermic (nine cases) and normospermic/oligozoospermic men (15 cases)...
July 18, 2017: Human Fertility: Journal of the British Fertility Society
https://www.readbyqxmd.com/read/28697346/-necrozoospermia-from-etiologic-diagnosis-to-therapeutic-management
#8
A Dumont, A-L Barbotin, V Lefebvre-Khalil, V Mitchell, J-M Rigot, F Boitrelle, G Robin
This review describes necrospermia, its diagnosis, causes and management. Sperm vitality is commonly assessed in the laboratory of reproductive biology, with the eosin test or with the hypo-osmotic swelling test. Necrospermia is defined by a percentage of living spermatozoa inferior to 58%, and can be related to male infertility. Several pathological mechanisms may be involved and can be classified either in testicular causes (hyperthyroidism, local hyperthermia, varicocele), or post-testicular causes (epididymal necrospermia, dysregulation of seminal plasma, adult polycystic kidney disease, vasectomy reversal, anti-sperm antibodies) or both (infection, toxic, age, spinal cord injury)...
April 2017: Gynecologie, Obstetrique, Fertilite & Senologie
https://www.readbyqxmd.com/read/28696244/effect-of-vitrification-on-in-vitro-development-and-imprinted-gene-grb10-in-mouse-embryos
#9
Jianfeng Yao, Lixia Geng, Rongfu Huang, Weilin Peng, Xuan Chen, Xiaohong Jiang, Miao Yu, Ming Li, Yanfang Huang, Xiaoyu Yang
Vitrification of embryos is a routine procedure in IVF (in vitro fertilization) laboratories. In the present study, we aimed to investigate the effect of vitrification on mouse preimplantation embryo development in vitro, and effect on the epigenetic status of imprinted gene Grb10 in mouse embryos. The blastocyst formation rate for vitrified 8-cell embryos was similar to the non-vitrified 8-cell embryos, whereas the blastocyst hatching rate was lower than that of the non-vitrified group. The expression level of Grb10 major-type transcript decreased significantly in vitrified blastocysts compared with non-vitrified and in vivo blastocysts...
September 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28612309/pre-implantation-genetic-diagnosis-should-we-use-icsi-for-all
#10
Baruch Feldman, Adva Aizer, Masha Brengauz, Keren Dotan, Jacob Levron, Eyal Schiff, Raoul Orvieto
OBJECTIVE: Intracytoplasmic sperm injection (ICSI) is commonly used during pre-implantation genetic diagnosis (PGD) in vitro fertilization (IVF), aiming to eliminate the risk of contamination from extraneous sperm DNA. Recently, ICSI "overuse" in non-male infertility has been doubted, since it does not offer an advantage over IVF. Prompted by the aforementioned observations, we sought to assess the accuracy of IVF vs ICSI in PGD cases, as might be reflected by a difference in the prevalence of discarded embryos as a consequent of parental contamination...
June 13, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28610639/impact-of-the-ivf-laboratory-environment-on-human-preimplantation-embryo-phenotype
#11
D K Gardner, R L Kelley
The phenotype of the human embryo conceived through in vitro fertilization (IVF), that is its morphology, developmental kinetics, physiology and metabolism, can be affected by numerous components of the laboratory and embryo culture system (which comprise the laboratory environment). The culture media formulation is important in determining embryo phenotype, but this exists within a culture system that includes oxygen, temperature, pH and whether an embryo is cultured individually or in a group, all of which can influence embryo development...
August 2017: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/28608497/the-effect-of-hpv-infection-on-ivf-outcomes-a-systematic-review-and-meta-analysis
#12
REVIEW
Charalampos Siristatidis, Dennis Vaidakis, Eleni Sertedaki, Wellington Martins
OBJECTIVES: Tο identify, appraise and summarize the available data, concerning the impact of HPV infection on the reproductive outcomes following in vitro fertilization (IVF). METHODS: We searched for studies on PubMed, Embase, Scopus, Lilacs and the Cochrane Central Register of Controlled Trials from inception to Mar-2017. Any type of HPV infection in the woman assessed through PCR, subfertility factors and IVF indications and protocols were considered. Our primary outcomes were live birth/ongoing pregnancy and miscarriage, while secondary included clinical and laboratory parameters...
June 13, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28600620/national-survey-on-use-of-time-lapse-imaging-systems-in-ivf-laboratories
#13
Andrey V Dolinko, L V Farland, D J Kaser, S A Missmer, C Racowsky
PURPOSE: Several time-lapse imaging (TLI) systems for non-invasive continuous monitoring of developing embryos are currently available. The present study explored the prevalence, means of acquisition, and clinical application of TLI systems in USA in vitro fertilization (IVF) laboratories. METHODS: An online cross-sectional survey of 294 USA IVF laboratory directors was conducted in February and March 2016. Those directing more than one laboratory were asked to complete the survey for their home program and for their smallest laboratory by number of IVF/intracytoplasmic sperm injection (ICSI) cycle starts...
June 10, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28583200/high%C3%A2-quality-clinical%C3%A2-grade-human-embryonic-stem-cell-lines-derived-from-fresh-discarded-embryos
#14
Jinpei Ye, Nicola Bates, Despina Soteriou, Lisa Grady, Clare Edmond, Alex Ross, Alan Kerby, Philip A Lewis, Tope Adeniyi, Ronnie Wright, Kay V Poulton, Marcus Lowe, Susan J Kimber, Daniel R Brison
BACKGROUND: Human embryonic stem cells (hESCs) hold tremendous promise for cell replacement therapies for a range of degenerative diseases. In order to provide cost-effective treatments affordable by public health systems, HLA-matched allogeneic tissue banks of the highest quality clinical-grade hESCs will be required. However only a small number of existing hESC lines are suitable for clinical use; they are limited by moral and ethical concerns and none of them apply Good Manufacturing Practice (GMP) standards to the earliest and critical stages of gamete and embryo procurement...
June 5, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28575413/comprehensive-protocol-of-traceability-during-ivf-the-result-of-a-multicentre-failure-mode-and-effect-analysis
#15
L Rienzi, F Bariani, M Dalla Zorza, E Albani, F Benini, S Chamayou, M G Minasi, L Parmegiani, L Restelli, G Vizziello, A Nanni Costa
STUDY QUESTION: Can traceability of gametes and embryos be ensured during IVF? SUMMARY ANSWER: The use of a simple and comprehensive traceability system that includes the most susceptible phases during the IVF process minimizes the risk of mismatches. WHAT IS KNOWN ALREADY: Mismatches in IVF are very rare but unfortunately possible with dramatic consequences for both patients and health care professionals. Traceability is thus a fundamental aspect of the treatment...
August 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28553759/access-to-fertility-services-in-canada-for-hiv-positive-individuals-and-couples-a-comparison-between-2007-and-2014
#16
Carson K Lo, V Logan Kennedy, Mark H Yudin, Heather M Shapiro, Mona Loutfy
In the modern era of HIV care, a multitude of clinical needs have emerged; one such need is the growing sub-specialty of HIV and reproductive health. In 2007, a study surveying Canadian fertility clinics found limited access to fertility services for HIV-positive patients. Given the extensive efforts made to address this lack of services, a follow-up assessment was warranted. This study aimed to compare the access to Canadian fertility clinics and services for HIV-positive individuals and couples in 2014 and 2007...
November 2017: AIDS Care
https://www.readbyqxmd.com/read/28540437/volatile-organic-compounds-and-good-laboratory-practices-in-the-in-vitro-fertilization-laboratory-the-important-parameters-for-successful-outcome-in-extended-culture
#17
Nupur Agarwal, Ratna Chattopadhyay, Sanghamitra Ghosh, Arpita Bhoumik, S K Goswami, Baidyanath Chakravarty
PURPOSE: This study aims to describe the role of implementing good laboratory practices to improve in vitro fertilization (IVF) outcomes which are of great interest for practitioners dealing with infertility. METHODS: Certain modifications were introduced in May 2015 in our IVF laboratory like high-efficiency particulate air CODA system, steel furniture instead of wooden, use of new disinfectants like oosafe, and restriction of personnel entry along with avoidance of cosmetics like perfume to improve pregnancy rates...
August 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28531319/improved-sperm-kinematics-in-semen-samples-collected-after-2-h-versus-4-7-days-of-ejaculation-abstinence
#18
H Alipour, G Van Der Horst, O B Christiansen, F Dardmeh, N Jørgensen, H I Nielsen, C Hnida
STUDY QUESTION: Does a short abstinence period of only 2 h yield spermatozoa with better motility characteristics than samples collected after 4-7 days? SUMMARY ANSWER: Despite lower semen volume, sperm concentration, total sperm counts and total motile counts, higher percentages of motile spermatozoa with higher velocity and progressiveness were detected in samples obtained after 2 h. WHAT IS KNOWN ALREADY: Most studies that have assessed the effect of abstinence periods on sperm motility parameters in men with a sperm concentration below 15 million/ml have detected a higher percentage of motile spermatozoa in samples obtained after short abstinence periods...
May 22, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28524047/oestrogen-and-progesterone-receptors-in-melanoma-and-nevi-an-immunohistochemical-study
#19
Emi Dika, Pier Alessandro Fanti, Sabina Vaccari, Elisa Capizzi, Alessio Degiovanni, Agnese Gobbi, Bianca Maria Piraccini, Simone Ribero, Carlotta Baraldi, Giulia Maria Ravaioli, Michelangelo Fiorentino, Annalisa Patrizi
The effect of hormonal stimulation and fertility treatments, on the development of malignant melanoma (MM) remains to be determined. The aim of this study was to investigate the presence of oestrogen receptor alpha (ERα) and progesterone receptor (PR) in MM and nevi after hormonal stimulation. Immunohistochemical analyses were performed utilizing antibodies specifically directed against ERα and PR in MM and atypical nevi specimens from patients: (1) diagnosed during pregnancy, (2) diagnosed in the six months following delivery, or (3) who had undergone repetitive cycles of hormonal stimulation for in vitro fertilization (IVF) in the year that preceded MM diagnosis...
June 1, 2017: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/28485664/controlled-ovarian-stimulation-and-ivf-pregnancy-in-a-trisomy-x-carrier-with-associated-hypogonadotropic-hypogonadism
#20
Claudia Massarotti, Patrizia Fiorio, Roberto Gastaldi, Lucia Rosaia De Santis, Daniela Pastorino, Valentino Remorgida, Paola Anserini
We describe successful controlled ovarian stimulation (COS) and the first known IVF pregnancy in a trisomy X carrier with associated hypogonadotropic hypogonadism (HH) linked to a chromosome 4 double mutation in the allele of the Gonadotropins Releasing Hormone receptor (GnRHr) gene. Previous administration of low dose of gonadotropins, as recommended in patients with HH, led to poor follicular recruitment. Since trisomy X is a risk factor for diminished ovarian reserve (DOR) and premature ovarian insufficiency (POI), higher doses of gonadotropins led to better ovarian response...
May 9, 2017: Gynecological Endocrinology
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