Abstract:
PURPOSE:The properties of the mouse Ped gene and the genes that mediate apoptosis in mediating preimplantation embryonic survival were reviewed. METHODS:Preimplantation mouse oocytes and embryos were evaluated microscopically and biochemically for rate of development, degree of fragmentation, and gene expression to correlate these characteristics with embryo mortality, Biochemical assays included PCR for DNA analysis, RT-PCR for mRNA analysis, immuno-PCR for protein analysis, and TUNEL assay for assessment of apoptosis. RESULTS:Using the mouse as a model system we have identified a gene that controls the rate of development, the Ped gene. The Ped gene product is a class Ib major histocompatibility complex protein called the Qa-2 antigen. Research to understand the molecular mechanisms of Ped gene action and to identify the human homologue of the Ped gene is under way. We have also shown using the mouse model, that fragmented embryos show the morphological and biochemical characteristics of apoptosis. Genes in the two major gene families that regulate apoptosis, the caspase and Bcl-2 families, are expressed in mouse oocytes and preimplantation embryos. CONCLUSIONS:Preimplantation embryonic survival depends on two major morphological parameters: rate of development and degree of fragmentation. A fast rate of development and a low degree of fragmentation lead to a better chance of producing live offspring. Both rate of development and degree of fragmentation are genetically controlled, the former by the Ped gene and the latter most likely by genes that mediate apoptosis. It seems probable that regulation of apoptosis will prove to be a major mechanism that mediates oocyte and preimplantation embryonic survival.
journal_name
J Assist Reprod Genetjournal_title
Journal of assisted reproduction and geneticsauthors
Warner CM,McElhinny AS,Wu L,Cieluch C,Ke X,Cao W,Tang C,Exley GEdoi
10.1023/a:1022560914833subject
Has Abstractpub_date
1998-05-01 00:00:00pages
331-7issue
5eissn
1058-0468issn
1573-7330journal_volume
15pub_type
杂志文章,评审abstract::A recent study published in Human Reproduction claimed that uterine lavage offers a non-surgical, minimally invasive strategy for the recovery of human embryos from fertile women who do not want or need IVF for medical reasons but who desire preimplantation genetic testing (PGT) for embryos. To prove this hypothesis, ...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-020-01954-9
更新日期:2020-11-01 00:00:00
abstract:PURPOSE:Oocyte competence is critical in success of assisted reproduction. Metabolic signaling between oocyte and cumulus cells within the cumulus-oocyte complex procure oocyte development. This study evaluated the relationship between respirometric activity of cumulus cells and maturity of corresponding oocytes. METH...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-018-1271-9
更新日期:2018-10-01 00:00:00
abstract:PURPOSE:This clinical study was designed to identify and compare the pregnancy rates of simultaneous program of natural-cycle IVF and cryopreserved-thawed ET (NICE) with those of natural-cycle IVF and cryopreserved-thawed ET. METHODS:All three groups comprised spontaneously ovulating infertile women under the age of 4...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/BF02066425
更新日期:1996-10-01 00:00:00
abstract:PURPOSE:To evaluate whether endometrial compaction using sequential transvaginal ultrasound is associated with improved live birth rates in medicated single euploid frozen embryo transfer (FET) cycles. METHODS:Prospective observational cohort study at a private fertility clinic. Patients who underwent FETs between Jan...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-020-02043-7
更新日期:2021-01-03 00:00:00
abstract:BACKGROUND:For couples at risk of transmitting a known single-gene defect, preimplantation genetic diagnosis (PGD) allows the identification and transfer of only unaffected embryos following in vitro fertilisation (IVF), single-cell biopsy at about the eight-cell stage, and genetic analysis by PCR. This technique there...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/BF02072529
更新日期:1996-02-01 00:00:00
abstract:PURPOSE:This study was conducted in order to investigate the effects of reactive oxygen species (ROS) levels on the seminal plasma (SP) metabolite milieu and sperm dysfunction. METHODS:Semen specimens of 151 normozoospermic men were analyzed for ROS by chemiluminescence and classified according to seminal ROS levels [...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-018-1350-y
更新日期:2019-02-01 00:00:00
abstract:PURPOSE:To compare the outcome of sperm extraction 24 h before ovum pickup and on the day of oocyte retrieval. METHODS:A controlled study was performed to compare the outcome of 90 sperm extractions and in vitro sperm injection cycles performed in 54 patients. RESULTS:Available fresh sperm for the sperm injection pro...
journal_title:Journal of assisted reproduction and genetics
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1023/a:1024116326465
更新日期:2003-06-01 00:00:00
abstract:PURPOSE:To evaluate the relative cost-effectiveness of recombinant and urinary follicle-stimulating hormone (FSH) in assisted reproduction techniques in the Spanish National Health Service. METHODS:Markov modelling was used to compare costs and outcomes of three complete treatment cycles using recombinant or urinary F...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1023/a:1024899806149
更新日期:2003-08-01 00:00:00
abstract:OBJECTIVES:To analyze in detail the fatty acid (FA) composition of follicular fluid (FF) from two-sized follicles at oocyte retrieval and to determine associations of the FAs from large follicles with the woman's age and the response to ovarian stimulation. DESIGN:Observational study. SETTING:University and fertility...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-018-1384-1
更新日期:2019-03-01 00:00:00
abstract:PURPOSE:To find out the meiotic segregation behaviour of the t(1;8;2)(q42;p21;p15), to evaluate the occurrence of interchromosomal effects, and to determine whether there is an accumulation of unbalanced products in aneuploid/diploid gametes. METHODS:A sequential FISH protocol based on two successive hybridization rou...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-013-0063-5
更新日期:2013-09-01 00:00:00
abstract:PURPOSE:Because the availability of prophase oocytes for zona binding testing is limited, we compared sperm binding to the zona of failed-fertilized intracytoplasmic sperm injection (ICSI) and in vitro fertilization (IVF) oocytes after incubation in a standard IVF medium and a specially composed binding improvement med...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1023/a:1022541511875
更新日期:1999-01-01 00:00:00
abstract:PURPOSE:To analyze the relative cost-effectiveness of recombinant FSH (rFSH) and urinary FSH (uFSH) in assisted reproduction techniques (ART). METHODS:Calculation of the average cost-effectiveness ratio and the incremental cost-effectiveness ratio to compare costs and effects (pregnancy rates) of the two therapeutic o...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1023/a:1026501821849
更新日期:2001-02-01 00:00:00
abstract:PURPOSE:To compare national trends and perinatal outcomes following the use of ejaculated versus surgically acquired sperm among IVF cycles with male factor infertility. METHODS:This retrospective cohort includes US fertility clinics reporting to the National ART Surveillance System between 2004 and 2015. Fresh, non-d...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-018-1178-5
更新日期:2018-07-01 00:00:00
abstract:PURPOSE:To examine the intra- and inter-individual variability in fatty acid composition of follicular fluid (FF) of 23 patients undergoing assisted reproductive treatment. METHODS:The average coefficient of variation within each patient (CVw) and intra-class correlation coefficient (ICC) values of FF fatty acid compo...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-019-01669-6
更新日期:2020-03-01 00:00:00
abstract:PURPOSE:A pilot study was performed to test the diagnostic value of in vitro DNA fluorescence in oocytes that failed to fertilize after IVF. Ten patients with a cleavage rate less than 20% after IVF were included. RESULTS:Uncleaved oocytes were observed by fluorescence microscopy after incubation with the DNA fluoresc...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/BF01204255
更新日期:1992-12-01 00:00:00
abstract::The understanding of the embryo's nutrient requirements and physiology has led to the development of more physiological culture media, capable of supporting acceptable levels of human blastocyst development in vitro. The success of such media can be attributed to catering to the embryo's changing nutrient requirements...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1023/a:1022543901455
更新日期:1998-09-01 00:00:00
abstract:PURPOSE:Our objective was to study the effect of a sonographically diffusely enlarged uterus without distinct uterine masses on the outcome of in vitro fertilization-embryo transfer (IVF-ET). METHODS:Nineteen primary infertility patients undergoing IVF-ET who had a sonographically diffusely enlarged uterus without dis...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1023/a:1020593930366
更新日期:1999-08-01 00:00:00
abstract:BACKGROUND:In previous studies, higher progesterone secretion was observed in mature versus immature cumulusoocyte complexes. In mature cumulus mass that become homogeneously spread in culture (type C/D) progesterone secretion was higher than in partially (type B) or totally (type A) aggregated morphology. In sharp con...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/BF02765828
更新日期:1997-05-01 00:00:00
abstract::Gender selection by PGD is an appropriate use of medical resources. Children borne through PGD for gender determination would be welcome and would come into a couple's life at a planned, opportune time. If the practice were made more available through insurance coverage, the size and makeup of families could become a ...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1023/a:1016871925450
更新日期:2002-09-01 00:00:00
abstract:PURPOSE:The results obtained with a protocol consisting of ovarian stimulation with low doses of highly purified FSH (FSH HP), administration of a GnRH analogue to induce an endogenous surge of gonadotropins, and IUI were evaluated. These results were compared with those seen with similar FSH stimulation and hCG admini...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1023/a:1021127410300
更新日期:1997-10-01 00:00:00
abstract::MicroRNAs (miRNAs) are small, about 22 nucleotides, non-coding RNAs which regulate a wide range of gene expression during post-transcriptional stage. They are released into intra- and extracellular microenvironments and play vital roles in different physiological and pathological pathways. Due to easy accessibility, d...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章,评审
doi:10.1007/s10815-020-01860-0
更新日期:2020-08-01 00:00:00
abstract:PURPOSE:Apart from freezing/thawing related cryodamage, several additional factors have been identified as major players in the reduction of success rates after frozen embryo transfers. The post-thaw culture is particularly relevant as it may amplify environmental influences over a stressed embryo. In the present study...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-012-9793-z
更新日期:2012-08-01 00:00:00
abstract:PURPOSE:To study gene expression at single embryonic stem cell colony levels with a new RT-PCR protocol. METHODS:Forty-five mouse ES cell colonies were retrieved at the 5th, 10th, 15th, 20th and 25th passages. The pluripotent state was analyzed for OCT-4 and Nanog, and beta-actin as a control for the presence of templ...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-007-9141-x
更新日期:2007-08-01 00:00:00
abstract:PURPOSE:The number of women attempting to conceive between the ages of 36 and 44 has increased significantly in the last decade. While it is well established that women's reproductive success dramatically declines with age, the underlying physiological changes responsible for this phenomenon are not well understood. Wi...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章,评审
doi:10.1007/s10815-011-9588-7
更新日期:2011-09-01 00:00:00
abstract:PURPOSE:The purpose of this study was to determine the effect of stimulated and artificial endometrial preparation protocols on reproductive outcomes in frozen embryo transfer (FET) cycles. METHODS:We performed a retrospective study of 1926 FET cycles over a 3.5-year period in the Fertility Unit at a University Hospit...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-017-1078-0
更新日期:2018-03-01 00:00:00
abstract:PURPOSE:To review the current literature regarding the role of vitamin D status in pregnancy outcomes in women undergoing assisted reproductive technology (ART) and to assess cost-effectiveness of routine vitamin D deficiency screening and repletion prior to initiation of ART. METHODS:A systematic literature review wa...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章,评审
doi:10.1007/s10815-014-0407-9
更新日期:2015-03-01 00:00:00
abstract:OBJECTIVE:To study the optimum time for ovum pickup after human chorionic gonadotropin (hCG) injection in in vitro fertilization. DESIGN:Prospective randomized study. SETTING:The Egyptian IVF-ET center. PATIENTS:Ninety couples with male factor infertility enrolled for intracytoplasmic sperm injection, divided into t...
journal_title:Journal of assisted reproduction and genetics
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF02215712
更新日期:1994-10-01 00:00:00
abstract:OBJECTIVE:Combination of transcriptomic and retrospective clinical data, to assess anti-Mullerian hormone (AMH) functionality at a cumulus cell level and evaluate AMH potential as a suitable marker for IVF outcomes (oocytes retrieved, number of day 3 embryos, gestation outcomes). DESIGN:Raw RNA-sequencing data of cumu...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-020-01802-w
更新日期:2020-07-01 00:00:00
abstract:PURPOSE:The present study aimed to provide a non-invasive approach to studying mechanisms responsible for oocyte development. METHODS:To this end, follicular fluid (FF) from 62 patients undergoing in vitro fertilization (IVF) cycles was split into two groups depending on the pregnancy outcome: pregnant (n = 28) and no...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-019-01428-7
更新日期:2019-05-01 00:00:00
abstract:PURPOSE:The aim of this study was to investigate possible seasonal changes in human sperm parameters, especially chromatin condensation. METHOD:In a first run, 3155 patients attending the andrological outpatient clinic at the Centre of Dermatology and Andrology at Justus Liebig University, Giessen, Germany, from Janua...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1023/a:1016618405570
更新日期:2001-07-01 00:00:00