Abstract:
PURPOSE:The purpose of this study was to investigate the expression of EGF receptor (EGF-R) in human granulosa cells undergoing luteinization and progesterone production by these cells in response to EGF an TGF-alpha alone or in combination with luteinizing hormone (LH). Granulosa cells were obtained from IF patients following oocyte retrieval 34 to 36 hr post-hCG injection. EGF receptor was localized in cells by means of immunoperoxidase staining using a polyclonal primary antibody directed against the human EGF-R. To assess progesterone production, cells were seeded overnight, washed, and cultured with the growth factors +/- LH. Medium and treatments were changed every 24 hr for 3 days. RESULTS:Specific EGF-R staining was observed in the cultured cells compared to those incubated with antibody that was preabsorbed with a 10-fold excess of EGF. Basal progesterone accumulation per 24-hr period was stimulated dose dependently on each day of culture, by both EGF (up to 3.5-fold at 5 or 50 ng/ml) and TGF-alpha (up to 4-fold at 50 ng/ml). The addition of LH alone also stimulated progesterone accumulation daily, and this effect was further enhanced dose dependently by cotreatment with EGF or TGF-alpha. Furthermore, tyrphostin, an EGF-R-specific tyrosine kinase inhibitor, inhibited both basal and growth factor-stimulated progesterone production. CONCLUSION:These data suggest an EGF receptor-mediated physiological role for EGF and TGF-alpha in human luteal function involving an autocrine and/or a paracrine stimulation of progesterone production.
journal_name
J Assist Reprod Genetjournal_title
Journal of assisted reproduction and geneticsauthors
Tekpetey FR,Daniel SA,Yuzpe Adoi
10.1007/BF02212900subject
Has Abstractpub_date
1995-11-01 00:00:00pages
720-7issue
10eissn
1058-0468issn
1573-7330journal_volume
12pub_type
杂志文章abstract:BACKGROUND:A growing body of evidence suggests that microRNAs play fundamental regulatory roles in embryo implantation and maintenance of pregnancy. The aim of this study was to investigate the possible association between miR-146a C > G, miR-149 T > C, miR-196a2 T > C, and miR-499 A > G polymorphisms and genetic susce...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-019-01573-z
更新日期:2019-11-01 00:00:00
abstract::We present a case of heterotopic pregnancy occurring after ET of pronuclear-stage embryos. This case demonstrates that pronuclear embryos have a good implantation potential and suggests that the potentially adverse effect of high follicular-phase serum progesterone levels on endometrial development might be offset by ...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/BF01212937
更新日期:1993-10-01 00:00:00
abstract:PURPOSE:Investigate whether R72P on p53 gene polymorphism has a higher prevalence among women with a history of recurrent implantation failure (RIF) and pregnancy loss (RPL) and its influence in their IVF cycle outcome. MATERIAL AND METHODS:p53 polymorphism R72P has been studied in 181 women. The control group include...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-013-0147-2
更新日期:2014-02-01 00:00:00
abstract:PURPOSE:A higher proportion of male offspring has been observed after transferring faster-developing embryos in a number of animal species. Therefore, we evaluated the correlation between the sex ratio of delivered babies and the cleavage stage of transferred embryos in a human IVF-ET program. METHODS:The sex of infan...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/BF02212575
更新日期:1995-10-01 00:00:00
abstract:PURPOSE:To determine whether between-trial heterogeneity in relative risk of fertilisation for intracytoplasmic sperm injection (ICSI) compared to in vitro fertilisation (IVF) can be explained by learning or by between-trial variation in patient characteristics. METHODS:Systematic review and meta-analysis of trials co...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章,meta分析
doi:10.1007/s10815-005-9004-2
更新日期:2006-01-01 00:00:00
abstract:PURPOSE:The purpose of this study is to to compare the efficacy of intravaginal culture (IVC) of embryos in INVOcell™ (INVO Bioscience, MA, USA) to traditional in vitro fertilization (IVF) incubators in a laboratory setting using a mild pre-determined stimulation regimen based solely on anti-mullerian hormone (AMH) and...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章,随机对照试验
doi:10.1007/s10815-016-0661-0
更新日期:2016-04-01 00:00:00
abstract:PURPOSE:Our purpose was to test whether age-related changes in antral follicle counts can predict the pregnancy outcome in the early follicular phase of a controlled ovarian hyperstimulation/intrauterine insemination (COH/IUI) program. METHODS:A selected group of 107 women (36 healthy women requesting child sex presel...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1023/a:1022518103368
更新日期:1998-01-01 00:00:00
abstract:PURPOSE:Our purpose was to determine if pregnancy rates (PRs) for hMG (human menopausal gonadotropin)-stimulated IVF-ET (in vitro fertilization--embryo transfer) can be increased by estradiol (E2) supplementation from the early proliferative phase to the late secretory phase of the endometrium. METHOD:Eighty-one infer...
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:1009445913156
更新日期:2000-01-01 00:00:00
abstract:PURPOSE:The IGF signaling cascade exerts important regulatory functions in human ovarian folliculogenesis. The scope of this study was to evaluate the transcription profile of insulin-like growth factor (IGF) genes during human ovarian follicle development and to analyze follicle fluid levels of key IGF proteins. METH...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-019-01432-x
更新日期:2019-05-01 00:00:00
abstract:RESEARCH QUESTION:Does a freeze-all strategy improve live birth rates in women of different age groups? DESIGN:Retrospective cohort study of 1882 first embryo transfer cycles, performed between January 2013 and December 2015. Reproductive outcomes between fresh (FRESH) or frozen (FROZEN) embryo transfers were compared...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-020-01934-z
更新日期:2020-10-01 00:00:00
abstract:PURPOSE:To characterize each chromosome's risk for being involved in embryonic aneuploidy. METHODS:This is a retrospective cohort study conducted at a single, academic center. The cohort consisted of 15,169 consecutive trophectoderm biopsies which then underwent comprehensive chromosome screening utilizing validated r...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-014-0333-x
更新日期:2014-11-01 00:00:00
abstract:PURPOSE:To assess the efficacy of a protocol involving the discontinuation of the GnRH analogue at the mid-phase of ovarian stimulation for IVF in patients with a previous poor response. METHODS:Prospective case-control evaluation compared with same patient's previous performance. Thirty-six patients enrolled in an IV...
journal_title:Journal of assisted reproduction and genetics
pub_type: 临床试验,杂志文章
doi:10.1023/a:1009476411762
更新日期:2001-04-01 00:00:00
abstract:PURPOSE:To investigate the association of cumulus cell (CC)-related expression of a selected cluster of key genes (PTGS2, CAMK1D, HAS2, STC1, and EFNB2) with embryo development to blastocyst. METHODS:Exploratory study at a private clinic. Eighteen advanced maternal age patients were enrolled (37.3 ± 4.0 years). Sevent...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-019-01410-3
更新日期:2019-05-01 00:00:00
abstract:PURPOSE:This study aimed to test whether there is an association between embryo morphokinetic parameters and ploidy status. METHODS:Patients with high risk of aneuploidy were analyzed by time-lapse microscopy combined with preimplantation genetic screening (PGS). Accordingly, 256 blastocysts from 75 patients were subj...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-017-0965-8
更新日期:2017-09-01 00:00:00
abstract:PURPOSE:To study the presence and distribution of genes encoding free radical scavengers in human granulosa cells from primordial and primary ovarian follicles. METHODS:A class comparison study on existing granulosa cell transcriptome from primordial (n = 539 follicles) and primary (n = 261) follicles donated by three...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-018-1240-3
更新日期:2018-10-01 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:PURPOSE:To generate novel, objective variables that resemble embryo quality and relate them to ongoing implantation, using multilevel imaging of single-transferred embryos. METHODS:Retrospective analysis of multilevel images of 659 day 3 single-transferred embryos. Each embryo was photographed on seven different level...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-013-9970-8
更新日期:2013-04-01 00:00:00
abstract:PURPOSE:Multiple studies have confirmed a lower implantation (IR) and pregnancy rate (PR) in women who exhibit a homogeneous pattern (pattern II) of the endometrium compared to a triple-line pattern (pattern I) on the day of hCG administration. However, no data are available to evaluate if patients alter their endometr...
journal_title:Journal of assisted reproduction and genetics
pub_type: 临床试验,杂志文章
doi:10.1023/a:1020545120256
更新日期:1999-11-01 00:00:00
abstract:PURPOSE:To evaluate leptin levels in a sample of obese women with PCOS and compare the results with obese and non-obese control, to be ultimately correlated with BMI, and insulin sensitivity. METHODS:Leptin and insulin assays by immuno-radiometric method, glucose assay by enzymatic colorimetric method. RESULTS:Leptin...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1023/b:jarg.0000046204.81682.67
更新日期:2004-10-01 00:00:00
abstract:BACKGROUND:Obesity is associated with several fertility disorders. This prospective cohort study was designed to evaluate the effect of body mass index (BMI) (kg/m2) on oocyte diameter and treatment. METHODS:Women undergoing in vitro fertilization (IVF) with intracytoplasmic sperm injection (ICSI) were enrolled in the...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-017-0975-6
更新日期:2017-09-01 00:00:00
abstract:PURPOSE:The purpose was to demonstrate the leukemia inhibitory factor (LIF) expression in different endometrial locations between fertile and infertile women throughout different menstrual phases. The relationship between progesterone level and LIF expression were evaluated. METHODS:Endometrial biopsies were performed...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1023/a:1009457016871
更新日期:2000-09-01 00:00:00
abstract:PURPOSE:Intrauterine insemination (IUI) is a method for the treatment of marital infertility involving the intrauterine or fallopian deposition of washed spermatozoa, depending on the amount of inseminated semen. In view of the divergent opinions about the inseminated volume, the objective of this study was to compare ...
journal_title:Journal of assisted reproduction and genetics
pub_type: 临床试验,杂志文章
doi:10.1023/a:1016678519490
更新日期:2001-08-01 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::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:The aim of this study was to investigate whether polymorphisms in the tissue inhibitor of metalloproteinase 3 gene (TIMP3) are associated with the risk of preeclampsia (PE) in Han Chinese women. METHODS:Nine single TIMP3 tag-single nucleotide polymorphisms were selected by Haploview and genotyped using the Seq...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-015-0529-8
更新日期:2015-10-01 00:00:00
abstract:PURPOSE:Our purpose was to determine if controlled ovarian hyperstimulation adversely affects implantation. METHODS:A retrospective comparison of pregnancy rates (PRs) and implantation rates was made between oocyte recipients versus their donors, who shared half of the retrieved oocytes, and regular patients undergoin...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1023/a:1020565408018
更新日期:1999-09-01 00:00:00
abstract:PURPOSE:To evaluate clinical outcomes of frozen-thawed embryo transfer cycles when one or two blastocysts are transferred. METHODS:Retrospective chart review RESULTS:Two hundred forty-three frozen blastocyst transfer (FBT) cycles were analyzed. Clinical pregnancy rate (50.4% vs. 34.7%), live birth rate (45.8% vs. 30....
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-011-9551-7
更新日期:2011-07-01 00:00:00
abstract:PURPOSE:The aim was to culture primordial follicles in vitro to reach preantral stage in vitrified human ovarian tissue. METHODS:Ovarian tissue samples were obtained from six women. Tissue strips were vitrified by infiltration with a cryoprotectant followed by mounting on a stainless steel carrier. After culturing for...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-013-0105-z
更新日期:2013-11-01 00:00:00
abstract:PURPOSE:To find an effective method to select embryos from ICSI with better chromosomal status when preimplantation-genetic-diagnosis (PGD) is not applied. METHODS:Several morpholological evaluations were done in same embryos. Embryos from ICSI were classified on day 1 according to pronuclear-nucleoli arrangement. On ...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-005-4874-x
更新日期:2005-03-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to assess the fertilizability of unfertilized aged human oocytes from failed in vitro fertilization (IVF) cycles using SUZI and ICSI. METHODS:A total of 363 oocytes which showed no fertilization after conventional IVF was subjected to assisted fertilization using SUZI or ICSI. The m...
journal_title:Journal of assisted reproduction and genetics
pub_type: 临床试验,杂志文章
doi:10.1007/BF02211724
更新日期:1994-09-01 00:00:00