keyword
MENU ▼
Read by QxMD icon Read
search

Oocyte donation

keyword
https://www.readbyqxmd.com/read/28333245/euploidy-rates-in-donor-egg-cycles-significantly-differ-between-fertility-centers
#1
S Munné, M Alikani, L Ribustello, P Colls, Pedro A Martínez-Ortiz, D H McCulloh
STUDY QUESTION: Do external factors affect euploidy in egg donor cycles? SUMMARY ANSWER: The study demonstrates that during human assisted reproduction, embryonic chromosome abnormalities may be partly iatrogenic. WHAT IS KNOWN ALREADY: Chromosome abnormalities have been linked in the past to culture conditions such as temperature and Ph variations, as well as hormonal stimulation. Those reports were performed with older screening techniques (FISH), or ART methods no longer in use, and the subjects studied were not a homogeneous group...
March 2, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28333241/dysmorphic-patterns-are-associated-with-cytoskeletal-alterations-in-human-oocytes
#2
Mariabeatrice Dal Canto, Maria Cristina Guglielmo, Mario Mignini Renzini, Rubens Fadini, Clarissa Moutier, Maria Merola, Elena De Ponti, Giovanni Coticchio
Study Question: Are specific morphological anomalies in human mature oocytes, as revealed by transmitted light microscopy, associated with intrinsic damage to the meiotic spindle and actin cytoskeleton? SUMMARY ANSWER: Aggregates of smooth endoplasmic reticulum (SER) and domains of centrally localized granular cytoplasm (GC) reflect intrinsic damage to the oocyte cytoskeleton, namely alterations in spindle size, chromosome misalignment and cortical actin disorganization...
March 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28330533/-oocyte-donation-is-associated-with-an-increased-risk-of-complications-in-the-pregnant-woman-and-the-fetus
#3
Marianne Storgaard, Sara Malchau, Anne Loft, Elisabeth Larsen, Anja Pinborg
In Denmark, oocyte donation is allowed for women below 46 years of age if sperm from the woman's husband/partner is used, thus assuring genetic relationship with one parent. New legislation has provided more donors implying both shorter waiting time until treatment and more pregnancies achieved with donated oocytes. Oocyte donation pregnancies have increased risks of pre-eclampsia, post-partum bleeding, caesarean section, low birth weight and preterm birth, and since these risks are aggravated in multiple pregnancies, single embryo transfer is recommended...
March 13, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28285954/anti-m%C3%A3-llerian-hormone-concentrations-and-parity-in-fertile-women-the-model-of-oocyte-donors
#4
Sophie Catteau-Jonard, Marie Roux, Agathe Dumont, Anne-Sophie Delesalle, Geoffroy Robin, Didier Dewailly
In France until the end of 2015, oocyte donors must have had at least one child and be aged 18-37 years. This population of fertile women was selected to examine whether serum anti-Müllerian hormone (AMH) concentration could be a reliable correlate of spontaneous pregnancy in women who had proven their fertility before. A cohort of 217 women followed between 2009 and 2015 for oocyte donation at the University Hospital of Lille comprised this retrospective study. In these egg donors, aged 20-37 (median: 32 years), the median serum AMH level was 22 pmol/l (5-95th percentiles: 4...
March 1, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28283263/impact-of-oocyte-donation-on%C3%A2-perinatal-outcome-in-twin-pregnancies
#5
Lucie Guilbaud, Pietro Santulli, Eva Studer, Vanessa Gayet, François Goffinet, Camille Le Ray
OBJECTIVE: To compare perinatal outcomes of twin pregnancies after oocyte donation (OD), in vitro fertilization (IVF) with autologous oocyte (AO), and non-IVF conception. DESIGN: Five-year retrospective cohort study. SETTING: Tertiary university medical center. PATIENT(S): All patients with twin pregnancies who gave birth after 24 weeks of gestation. The outcomes of 102 OD twin pregnancies were compared with those of 201 AO and 369 non-IVF twin pregnancies...
March 7, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28260557/the-influence-of-in-vitro-fertilization-and-embryo-culture-on-the-embryo-epigenetic-constituents-and-the-possible-consequences-in-the-bovine-model
#6
M-A Sirard
Medically assisted reproductive technologies, such as in vitro embryo production, are increasingly being used to palliate infertility. Eggs are produced following a hormonal regimen that stimulates the ovaries to produce a large number of oocytes. Collected oocytes are then fertilized in vitro and allowed to develop in vitro until they are either frozen or transferred to mothers. There are controversial reports on the adverse impacts of these technologies on early embryos and their potential long-term effects...
March 6, 2017: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/28216912/pregnancy-outcomes-and-maternal-and-perinatal-complications-of-pregnancies-following-in-vitro-fertilization-intracytoplasmic-sperm-injection-using-own-oocytes-donor-oocytes-and-vitrified-embryos-a-prospective-follow-up-study
#7
Manish Banker, Vidhisha Mehta, Dipesh Sorathiya, Mira Dave, Sandeep Shah
BACKGROUND: Several global studies have assessed maternal and perinatal outcomes and complications with the type of embryo transfer (ET) following in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI). The present study assessed the incidence of maternal and perinatal outcomes and complications following IVF/ICSI associated with the type of embryo transferred. METHODOLOGY: A total of 2112 ETs were performed in 2092 female patients aged 21-50 years between January 1 and December 31, 2014 (Group A: Fresh ET using self-oocytes: 691; Group B: Fresh ET using donor oocytes: 810; and Group C: Thaw ET using vitrified-warmed embryos: 611)...
October 2016: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/28188592/redirecting-reproductive-immunology-research-toward-pregnancy-as-a-period-of-temporary-immune-tolerance
#8
Norbert Gleicher, Vitaly A Kushnir, David H Barad
Referring to two recent publications, we here propose that clinical reproductive immunology has for decades stagnated because reproductive medicine, including assisted reproduction (AR), has failed to accept embryo implantation as an immune system-driven process, dependent on establishment of maternal tolerance toward the implanting fetal semi-allograft (and complete allograft in cases of oocyte donation). Pregnancy represents a biologically unique period of temporary (to the period of gestation restricted) tolerance, otherwise only known in association with parasitic infections...
February 10, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28186956/uterine-artery-doppler-pulsatility-index-at-11-38-weeks-in-icsi-pregnancies-with-egg-donation
#9
Annalisa Inversetti, Luca Mandia, Massimo Candiani, Irene Cetin, Alessandro Larcher, Valeria Savasi, Enrico Papaleo, Paolo Cavoretto
BACKGROUND: Uterine artery Doppler pulsatility index (UtA-PI) may be different in pregnancies with egg donation (ICSI-ED) as compared to conceptions with autologous intra-cytoplasmatic sperm injection (autologous ICSI) and to spontaneous conceptions (SC). METHODS: One hundred and ninety-four pregnant women with different modes of conception (MC) were prospectively evaluated: 53 ICSI-ED, 36 autologous ICSI and 105 SC. To evaluate the effects of different MC on PI, multivariable linear regression (MLR) models predicting UtA-PI were fitted after adjustment for maternal age, body mass index, race, parity, smoking status and gestational age...
February 10, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28186611/-ethical-issues-of-oocyte-donation
#10
Yanjin Liu, Libai Cai
The birth and development of oocyte donation technology have brought hope for women with poor ovarian reserve and repeated failure for in vitro fertilization, as well as for those with chromosomal abnormalities, premature ovarian failure, or at perimenopausal or menopausal stages. It has not only preserved their reproductive right, but also stabilized their families and increased social harmony. However, this technology does not only involve infertile couples themselves, but also social and ethical issues concerning their families and the society...
February 10, 2017: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
https://www.readbyqxmd.com/read/28136000/altruism-or-obligation-the-motivations-and-experience-of-women-who-donate-oocytes-to-known-recipients-in-assisted-conception-treatment-an-interpretative-phenomenological-analysis-study
#11
Santanu Acharya, Louise Bryant, Maureen Twiddy
INTRODUCTION: This qualitative study was conducted to explore the motivations and experience of oocyte donors donating to women known to them. METHODS: Three women who donated oocytes to a close relative were interviewed and data were analysed using an Interpretative Phenomenological Analysis approach. RESULTS: The two key elements noted were "motivations for donation" and "coping with the consequences of oocyte donation". The motivation for donation was influenced by the familial bond that was strengthened by the donation process in some cases...
March 2017: Journal of Psychosomatic Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28062551/new-stimulation-regimens-endogenous-and-exogenous-progesterone-use-to-block-the-lh-surge-during-ovarian-stimulation-for-ivf
#12
REVIEW
Nathalie Massin
BACKGROUND: The advent of embryo and oocyte vitrification today gives reproductive specialists an opportunity to consider new strategies for improving the practice and results of IVF attempts. As the freezing of entire cohorts does not compromise, and may even improve, the results of IVF attempts, it is possible to break away from the standard sequence of stimulation-retrieval-transfer. The constraints associated with ovarian stimulation in relation to the potential harmful effects of the hormonal environment on endometrial receptivity can be avoided...
January 5, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28038435/organelle-transport-during-mouse-oocyte-differentiation-in-germline-cysts
#13
REVIEW
Kanako Ikami, Nafisa Nuzhat, Lei Lei
During mammalian oogenesis, germ cells undergo oocyte differentiation and oocyte development to form mature oocytes that contain essential components for supporting early embryogenesis. However, only a small fraction of germ cells become mature oocytes and the mechanism of this massive germ cell loss has been unclear. Our recent studies suggested that the formation of functional oocytes and germ cell loss are interlinked by a 'nursing' process in germline cysts during oocyte differentiation in mouse fetal ovaries...
December 27, 2016: Current Opinion in Cell Biology
https://www.readbyqxmd.com/read/28029395/the-current-situation-of-infertility-services-provision-in-europe
#14
REVIEW
Ioannis E Messinis, Christina I Messini, Alexandros Daponte, Antonios Garas, Tahir Mahmood
Infertility is a global medical problem of the reproductive system which may affect the quality of a woman's life. Whether infertility provision varies between different European countries has not been investigated in the context of a comparative study. There are, however, differences in legislation between different countries, which encourage "infertility tourism". Women cross borders in order to get access to those treatment modalities that are not provided in their own country. Oocyte donation for example and the high cost of the services locally are common reasons for this mobility...
October 20, 2016: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28000026/pregnancy-outcomes-in-oocyte-recipients-with-fibroids-not-impinging-uterine-cavity
#15
Lena Sagi-Dain, Kamal Ojha, David Bider, Jacob Levron, Viktor Zinchenko, Sharon Walster, Shlomi Sagi, Martha Dirnfeld
OBJECTIVE: To examine the effects of fibroid uterus on pregnancy outcomes and endometrial features in ovum donation recipients. METHODS: Retrospective analysis of 744 ovum donation cycles was conducted in two private IVF centers between 2005 and 2012. All the recipients underwent transvaginal ultrasound examination, including endometrial thickness and grade measurements. Clinical pregnancy, spontaneous miscarriage, and live birth rates were regarded as the primary outcomes...
February 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/27998857/-clinical-outcome-of-in-vitro-fertilization-or-intracytoplasmic-sperm-injection-embryo-transfer-in-women-aged-40-years-and-above
#16
Xing-Yu Zhou, Shu-Xian Feng, Xue-Lan Li, Yu-Dong Liu, Xin Chen, De-Sheng Ye, Jing Niu, Shi-Ling Chen
OBJECTIVE: To investigate the clinical outcomes in vitro fertilization or intracytoplasmic sperm injection-embryo transfer (IVF/ICSI-ET) in women aged over 40 years. METHODS: We retrospectively analyzed 1050 non-donor IVF/ICSI-ET cycles performed from January, 2007 to December, 2015 in women at the age 40 years or above, including 393 women at 40 years of age, 266 at 41 years, 158 at 42 years, 107 at 43 years, 64 at 44 years, and 65 at 45-51 years. The clinical characteristics and outcomes of the women in different age groups were compared and analyzed...
December 20, 2016: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/27865445/perinatal-complications-of-oocyte-donation-to-women-of-advanced-reproductive-age
#17
EDITORIAL
Richard J Paulson
No abstract text is available yet for this article.
January 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/27856185/utilization-of-third-party-in%C3%A2-vitro-fertilization-in-the-united%C3%A2-states
#18
Vitaly A Kushnir, Sarah K Darmon, Alice J Shapiro, David F Albertini, David H Barad, Norbert Gleicher
BACKGROUND: The use of in vitro fertilization that includes third-party in vitro fertilization is increasing. However, the relative contribution of third-party in vitro fertilization that includes the use of donor oocytes, sperm, or embryo and a gestational carrier to the birth cohort after in vitro fertilization is unknown. OBJECTIVE: The purpose of this study was to examine the contribution of third-party in vitro fertilization to the in vitro fertilization birth cohort over the past decade...
March 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27821557/telomeres-reproductive-aging-and-genomic-instability-during-early-development
#19
David L Keefe
Implantation rate decreases and miscarriage rate increases with advancing maternal age. The oocyte must be the locus of reproductive aging because donation of oocytes from younger to older women abrogates the effects of aging on fecundity. Nuclear transfer experiments in a mouse model of reproductive aging show that the reproductive aging phenotype segregates with the nucleus rather than the cytoplasm. A number of factors within the nucleus have been hypothesized to mediate reproductive aging, including disruption of cohesions, reduced chiasma, aneuploidy, disrupted meiotic spindles, and DNA damage caused by chronic exposure to reactive oxygen species...
December 2016: Reproductive Sciences
https://www.readbyqxmd.com/read/27816926/a-mother-s-gift-of-life-exploring-the-concerns-and-ethical-aspects-of-fertility-preservation-for-mother-to-daughter-oocyte-donation
#20
REVIEW
E M E Balkenende, W Dondorp, M C Ploem, C B Lambalk, M Goddijn, F Mol
With the introduction of oocyte vitrification, a special form of intergenerational intrafamilial medically assisted reproduction (IMAR) has now become feasible: fertility preservation for mother-to-daughter oocyte donation (FPMDD). For girls diagnosed with premature ovarian insufficiency (POI), banking of their mothers' oocytes can preserve the option of having genetically related offspring. Since policy documents on IMAR do not discuss specific concerns raised by FPMDD, clinicians can feel at a loss for guidance with regard to handling these requests...
January 2017: Human Reproduction
keyword
keyword
85042
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"