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Assisted Reproductive Biology

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https://www.readbyqxmd.com/read/28904906/a-step-by-step-guide-to-office-based-sperm-retrieval-for-obstructive-azoospermia
#1
REVIEW
Robert M Coward, Jesse N Mills
A variety of surgical options exists for sperm retrieval in the setting of obstructive azoospermia (OA). With appropriate preparation, the majority of these techniques can safely be performed in the office with local anesthesia and with or without monitored anesthesia care (MAC). The available techniques include percutaneous options such as percutaneous epididymal sperm aspiration (PESA) and testicular sperm aspiration (TESA), as well as open techniques that include testicular sperm extraction (TESE) and microsurgical epididymal sperm aspiration (MESA)...
August 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28904798/patterns-of-residual-hiv-1-rna-shedding-in-the-seminal-plasma-of-patients-on-effective-antiretroviral-therapy
#2
Christophe Pasquier, Marie Walschaerts, Stéphanie Raymond, Nathalie Moinard, Karine Saune, Myriam Daudin, Jacques Izopet, Louis Bujan
BACKGROUND: More and more HIV-1-infected men on effective antiretroviral treatment (ART) have unprotected sex in order to procreate. The main factor influencing transmission is seminal HIV shedding. While the risk of HIV transmission is very low, it is difficult to assess in individuals. Nevertheless, it should be quantified. RESULTS: We retrospectively analysed seminal plasma HIV-1 shedding by 362 treated HIV-infected men attending a medically assisted reproduction centre (1998-2013) in order to determine its frequency, the impact of the antiretroviral regimen on HIV shedding, and to identify shedding patterns...
2017: Basic and Clinical Andrology
https://www.readbyqxmd.com/read/28900753/fertility-treatment-for-the-transgender-community-a-public-opinion-study
#3
Randi H Goldman, Daniel J Kaser, Stacey A Missmer, Leslie V Farland, Scout, Rachel K Ashby, Elizabeth S Ginsburg
PURPOSE: The purposes of this study were to evaluate public opinion regarding fertility treatment and gamete cryopreservation for transgender individuals and identify how support varies by demographic characteristics. METHODS: This is a cross-sectional web-based survey study completed by a representative sample of 1111 US residents aged 18-75 years. Logistic regression was used to calculate odd ratios (ORs) and 95% confidence intervals (CIs) of support for/opposition to fertility treatments for transgender people by demographic characteristics, adjusting a priori for age, gender, race, and having a biological child...
September 12, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28884681/resource-depletion-through-primate-stone-technology
#4
Lydia V Luncz, Amanda Tan, Michael Haslam, Lars Kulik, Tomos Proffitt, Suchinda Malaivijitnond, Michael Gumert
Tool use has allowed humans to become one of the most successful species. However, tool-assisted foraging has also pushed many of our prey species to extinction or endangerment, a technology-driven process thought to be uniquely human. Here, we demonstrate that tool-assisted foraging on shellfish by long-tailed macaques (Macaca fascicularis) in Khao Sam Roi Yot National Park, Thailand, reduces prey size and prey abundance, with more pronounced effects where the macaque population size is larger. We compared availability, sizes and maturation stages of shellfish between two adjacent islands inhabited by different-sized macaque populations and demonstrate potential effects on the prey reproductive biology...
September 8, 2017: ELife
https://www.readbyqxmd.com/read/28874109/prospects-and-frontiers-of-stem-cell-toxicology
#5
Shuyu Liu, Nuoya Yin, Francesco Faiola
The development of stem cell biology has revolutionized regenerative medicine and its clinical applications. Another aspect through which stem cells would benefit human health, is their use in toxicology. In fact, owing to their ability to differentiate into all the lineages of the human body, including germ cells, stem cells and in particular pluripotent stem cells, can be utilized for the assessment, in vitro, of embryonic, developmental, reproductive, organ and functional toxicities, relevant to human physiology, without employing live animal tests and with the possibility of high throughput applications...
September 6, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28864986/the-role-of-maternal-nutrition-during-the-periconceptional-period-and-its-effect-on-offspring-phenotype
#6
Tom P Fleming, Judith J Eckert, Oleg Denisenko
The early preimplantation embryo has been rigorously studied for decades to understand inherent reproductive and developmental mechanisms driving its morphogenesis from before fertilisation through to and beyond implantation. Recent research has demonstrated that this short developmental window is also critical for the embryo's interaction with external, maternal factors, particularly nutritional status. Here, maternal dietary quality has been shown to alter the pattern of development in an enduring way that can influence health throughout the lifetime...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28816642/proteomic-analysis-of-the-human-olfactory-bulb
#7
Manjunath Dammalli, Gourav Dey, Anil K Madugundu, Manish Kumar, Benvil Rodrigues, Harsha Gowda, Bychapur Gowrishankar Siddaiah, Anita Mahadevan, Susarla Krishna Shankar, Thottethodi Subrahmanya Keshava Prasad
The importance of olfaction to human health and disease is often underappreciated. Olfactory dysfunction has been reported in association with a host of common complex diseases, including neurological diseases such as Alzheimer's disease and Parkinson's disease. For health, olfaction or the sense of smell is also important for most mammals, for optimal engagement with their environment. Indeed, animals have developed sophisticated olfactory systems to detect and interpret the rich information presented to them to assist in day-to-day activities such as locating food sources, differentiating food from poisons, identifying mates, promoting reproduction, avoiding predators, and averting death...
August 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/28813274/parenting-in-new-family-forms
#8
REVIEW
Susan Golombok
This paper reviews research on parenting and child development in new family forms including families created by assisted reproductive technologies, same-sex parent families, and families headed by single mothers by choice. The research is examined in the context of the issues and concerns that have been raised regarding these families. The findings not only contest popular assumptions about the psychological consequences for children of being raised in new family forms but also challenge the supremacy of the traditional family...
June 2017: Current Opinion in Psychology
https://www.readbyqxmd.com/read/28718082/low-first-trimester-papp-a-in-ivf-fresh-and-frozen-thawed-pregnancies-likely-due-to-a-biological-cause
#9
Lauren P Hunt, A M McInerney-Leo, S Sinnott, B Sutton, R Cincotta, G Duncombe, J Chua, M Peterson
PURPOSE: The purpose of this study is to confirm a difference in the first-trimester screen maternal biochemistry and false-positive rates (FPR) between pregnancies conceived spontaneously and those conceived via assisted reproductive technologies (ART). METHODS: Retrospective analysis of the complete population of women (17,889 pregnancies) who had undergone first-trimester screening between January 2004 and September 2009 at three private ultrasound clinics in Queensland, Australia was used in the study...
July 17, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28713007/future-fertility-for-individuals-with-differences-of-sex-development-parent-attitudes-and-perspectives-about-decision-making
#10
Emilie K Johnson, Ilina Rosoklija, Angela Shurba, Anthony D'Oro, Elisa J Gordon, Diane Chen, Courtney Finlayson, Jane L Holl
BACKGROUND: Children, adolescents, and young adults (children/youth) with differences/disorders of sex development (DSD) face challenges related to future fertility; this may be due to variations in gonadal development, and, for some, gonadectomy performed to reduce the risk of malignancy. Childhood may be the only time for preservation of biological fertility potential for children/youth who undergo gonadectomy or have early gonadal failure. Fertility-related decision-making for these patients is particularly complicated, due to the need for parental proxy decision-making, potential discordance between gender identity and gonadal type, and uncertain future assisted reproductive technologies...
July 3, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28651359/altered-microrna-and-piwi-interacting-rna-profiles-in-cumulus-cells-from-patients-with-diminished-ovarian-reserve
#11
Dawei Chen, Zhiguo Zhang, Beili Chen, Dongmei Ji, Yan Hao, Ping Zhou, Zhaolian Wei, Yunxia Cao
Diminished ovarian reserve (DOR) is defined as decreased number or quality of follicles and oocytes in a woman at childbearing age. It is estimated that up to 10% of women in the general population may suffer from DOR. This study aims to comprehensively characterize microRNA (miRNA) and Piwi-interacting RNA (piRNA) expression profiles in cumulus cells of DOR patients. Cumulus cells were collected from 20 women of similar chronological age who received assisted reproductive technology treatment: 10 with DOR and 10 with normal ovarian reserve (NOR)...
July 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28638443/dosage-compensation-and-sex-specific-epigenetic-landscape-of-the-x-chromosome-in-the-pea-aphid
#12
Gautier Richard, Fabrice Legeai, Nathalie Prunier-Leterme, Anthony Bretaudeau, Denis Tagu, Julie Jaquiéry, Gaël Le Trionnaire
BACKGROUND: Heterogametic species display a differential number of sex chromosomes resulting in imbalanced transcription levels for these chromosomes between males and females. To correct this disequilibrium, dosage compensation mechanisms involving gene expression and chromatin accessibility regulations have emerged throughout evolution. In insects, these mechanisms have been extensively characterized only in Drosophila but not in insects of agronomical importance. Aphids are indeed major pests of a wide range of crops...
2017: Epigenetics & Chromatin
https://www.readbyqxmd.com/read/28625714/proteomic-analysis-of-seminal-plasma-from-locally-adapted-curraleiro-p%C3%A3-duro-bulls-bos-taurus-identifying-biomarkers-involved-in-sperm-physiology-in-endangered-animals-for-conservation-of-biodiversity
#13
E B Menezes, R V de Oliveira, M F van Tilburg, E A Barbosa, N V Nascimento, A L M C S Velho, F B Moreno, R A Moreira, A C O Monteiro-Moreira, G M C Carvalho, A F Ramos, E Memili, A A Moura
The present study was aimed at evaluating the seminal plasma proteins and sperm parameters of Curraleiro Pé-Duro bulls. Semen was collected from 10 bulls by electroejaculation, and sperm parameters were evaluated in fresh and frozen-thawed semen. Seminal plasma proteins were analyzed by 2-D SDS-PAGE and mass spectrophotometry. Tools in computational biology were used to generate bioinformatic knowledge and evaluate gene ontology, protein-protein interactions, phylogenetic trees and multiple sequence alignments...
May 29, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28595899/-who-decides-what-data-should-be-recorded-in-the-medical-history-in-relation-to-the-biological-origin
#14
Sergio Gallego Riestra, Isolina Riaño Galán
There is an increasing request by patients or their representatives not to have some data registered in their clinical history or if such data exists to be deleted. Without doubt, this is so because such clinical data is accessed by various professionals who in most cases are not directly involved in caring for such patients. On the other hand, such data is copied and iteratively and unnecessary reproduced in various discharge reports and others forms. The problem arises when such controversial data refer to particularly sensitive clinical aspects such as assisted reproduction techniques, which invades personal and family privacy...
June 5, 2017: Atencion Primaria
https://www.readbyqxmd.com/read/28553318/non-coding-rnas-in-the-ovarian-follicle
#15
Rosalia Battaglia, Maria E Vento, Placido Borzì, Marco Ragusa, Davide Barbagallo, Desirée Arena, Michele Purrello, Cinzia Di Pietro
The mammalian ovarian follicle is the complex reproductive unit comprising germ cell, somatic cells (Cumulus and Granulosa cells), and follicular fluid (FF): paracrine communication among the different cell types through FF ensures the development of a mature oocyte ready for fertilization. This paper is focused on non-coding RNAs in ovarian follicles and their predicted role in the pathways involved in oocyte growth and maturation. We determined the expression profiles of microRNAs in human oocytes and FF by high-throughput analysis and identified 267 microRNAs in FF and 176 in oocytes...
2017: Frontiers in Genetics
https://www.readbyqxmd.com/read/28518085/analysis-of-chromosome-segregation-histone-acetylation-and-spindle-morphology-in-horse-oocytes
#16
Federica Franciosi, Irene Tessaro, Rozenn Dalbies-Tran, Cecile Douet, Fabrice Reigner, Stefan Deleuze, Pascal Papillier, Ileana Miclea, Valentina Lodde, Alberto M Luciano, Ghylene Goudet
The field of assisted reproduction has been developed to treat infertility in women, companion animals, and endangered species. In the horse, assisted reproduction also allows for the production of embryos from high performers without interrupting their sports career and contributes to an increase in the number of foals from mares of high genetic value. The present manuscript describes the procedures used for collecting immature and mature oocytes from horse ovaries using ovum pick-up (OPU). These oocytes were then used to investigate the incidence of aneuploidy by adapting a protocol previously developed in mice...
May 11, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28444613/no-difference-in-congenital-anomalies-prevalence-irrespective-of-insemination-methods-and-freezing-procedure-cohort-study-over-fourteen-years-of-an-art-population-in-the-south-of-france
#17
Any Beltran Anzola, Vanessa Pauly, Debbie Montjean, Line Meddeb, Cendrine Geoffroy-Siraudin, Roland Sambuc, Pierre Boyer, Marie-José Gervoise-Boyer
PURPOSE: A retrospective cohort study was conducted to evaluate and compare the prevalence of congenital anomalies in babies and fetuses conceived after four procedures of assisted reproduction technologies (ART). METHODS: The prevalence of congenital anomalies was compared retrospectively between 2750 babies and fetuses conceived between 2001 and 2014 in vitro fertilization with standard insemination (IVF), IVF with intracytoplasmic sperm injection (ICSI), IVF with frozen embryo transfer (FET-IVF), and ICSI with frozen embryo transfer (FET-ICSI)...
July 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28424471/human-luteinizing-hormone-and-chorionic-gonadotropin-display-biased-agonism-at-the-lh-and-lh-cg-receptors
#18
Laura Riccetti, Romain Yvinec, Danièle Klett, Nathalie Gallay, Yves Combarnous, Eric Reiter, Manuela Simoni, Livio Casarini, Mohammed Akli Ayoub
Human luteinizing hormone (LH) and chorionic gonadotropin (hCG) have been considered biologically equivalent because of their structural similarities and their binding to the same receptor; the LH/CGR. However, accumulating evidence suggest that LH/CGR differentially responds to the two hormones triggering differential intracellular signaling and steroidogenesis. The mechanistic basis of such differential responses remains mostly unknown. Here, we compared the abilities of recombinant rhLH and rhCG to elicit cAMP, β-arrestin 2 activation, and steroidogenesis in HEK293 cells and mouse Leydig tumor cells (mLTC-1)...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28416032/physiological-metabolic-and-transcriptional-postnatal-phenotypes-of-in-vitro-fertilization-ivf-in-the-mouse
#19
S K Feuer, P F Rinaudo
Approximately 1-4% of children today are conceived using assisted reproductive technologies (ARTs), including in vitro fertilization (IVF). IVF is considered safe and the great majority of these children are healthy, yet there is increasing physiological and molecular evidence from animal models that ART is associated with postnatal metabolic and cardiovascular alterations. Understanding the mechanisms underlying these changes and determining whether they have biological significance is of paramount importance for optimizing the design of culture conditions and improving the health of ART children across the life course...
April 18, 2017: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/28415992/women-epidemiology-lung-cancer-welca-study-reproductive-hormonal-occupational-risk-factors-and-biobank
#20
MULTICENTER STUDY
Isabelle Stücker, Diane Martin, Monica Neri, Pierre Laurent-Puig, Hélène Blons, Martine Antoine, Anne Guiochon-Mantel, Sylvie Brailly-Tabard, Marianne Canonico, Marie Wislez, Jean Trédaniel
BACKGROUND: Lung cancer aetiology and clinical aspects have been mainly studied in men, although specific risk factors probably exist in women. Here we present the rationale, design and organization of the WELCA study (Women Epidemiology Lung CAncer) that has been launched to investigate lung cancer in women, focusing particularly on hormonal and occupational factors. METHODS/DESIGN: WELCA is a population based case-control study and planned to recruit 1000 cases and 1000 controls in three years, based on study power calculation...
April 17, 2017: BMC Public Health
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