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：OBJECTIVE:Our objective was to obtain parthenogenetic activation of unfertilized human oocytes by puromycin and to try to use this procedure for cytogenetic purposes. SETTING:The setting was our IVF laboratory. METHODS:Eighty-two spare oocytes from 34 IVF patients were used. In the first series of experiments 39 unfe...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/BF01203955
更新日期：1992-08-01 00:00:00
abstract：:The rapid development of gene-editing technologies has led to an exponential rise in both basic and translational research initiatives studying molecular processes and investigating possible clinical applications. Early experiments using genome editing to study human embryo development have contradicted findings in st...
journal_title：Journal of assisted reproduction and genetics
pub_type： 社论
doi：10.1007/s10815-018-1219-0
更新日期：2018-08-01 00:00:00
abstract：:The purpose of this clinical trial study was to report the outcome of intracytoplasmic injection of round (RS) and elongated (ES) spermatids retrieved from the testis of nonobstructive men. Seven and three cycles using RS and ES injections were performed, respectively. Only one cycle utilizing the late stage of ES (Sd...
journal_title：Journal of assisted reproduction and genetics
pub_type： 临床试验,杂志文章
doi：10.1023/a:1014447731630
更新日期：2002-02-01 00:00:00
abstract：PURPOSE:The etiology of fertilization failure and polyspermy during assisted reproductive technology (ART) remains elusive. The aim of this study was to determine whether mutations in the IZUMO1 receptor (IZUMO1R) gene, which is essential for mammalian fertilization, contribute to the pathogenesis of fertilization fail...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-017-1101-5
更新日期：2018-03-01 00:00:00
abstract：PURPOSE:The purpose of this study was to evaluate the best protocol to prepare endometrium for frozen embryo replacement (FER) cycles. METHODS:This study is a systematic review and meta-analysis. Following PubMed and OvidSP search, a total of 1166 studies published after 1990 were identified following removal of dupli...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章,meta分析,评审
doi：10.1007/s10815-016-0787-0
更新日期：2016-10-01 00:00:00
abstract：PURPOSE:To report another two successful pregnancies and deliveries resulting from autotransplanted cryopreserved ovarian tissue several years after the autotransplantation procedure took place. Further, to review the literature on the treatment history, number of live births and their outcome so far reported worldwide...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-014-0331-z
更新日期：2014-11-01 00:00:00
abstract：PURPOSE:A large part of infertility treatment involves the use of exogenous gonadotropins. The last decade has seen a progressive switch from human menopausal gonadotropin (hMG), the original gonadotropin product, to progressively more costly products, primarily or exclusively containing follicle-stimulating hormone (F...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1023/a:1009477523136
更新日期：2000-10-01 00:00:00
abstract：PURPOSE:We investigated whether enzymatically fabricated hyaluronan (HA) microcapsules were feasible for use in the cryopreservation of a small number of sperm. METHODS:HA microcapsules were fabricated using a system of water-immiscible fluid under laminar flow. Three sperm were injected into a hollow HA microcapsule ...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-016-0656-x
更新日期：2016-04-01 00:00:00
abstract：PURPOSE:To compare the use of human chorionic gonadotropin (hCG) to a gonadotropin releasing hormone (GnRH) agonist, nafarelin, in initiating ovulation and supporting the luteal phase after priming with clomiphene. METHODS:In 26 infertile women 50 mg clomiphene citrate produced a preovulatory-size follicle. Then, 11 w...
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/BF02211793
更新日期：1995-03-01 00:00:00
abstract：PURPOSE:To verify a more effective dilution method that can be applied to human expanded blastocysts that are vitrified after artificial shrinkage. METHODS:Surplus expanded blastocysts that remained after embryo transfer (ET) in in vitro fertilization (IVF) cycles, were cryopreserved. The blastocysts were vitrified on...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-005-9006-0
更新日期：2006-02-01 00:00:00
abstract：PURPOSE:To determine whether a selected set of mRNA biomarkers expressed in individual cumulus granulosa cell (CC) masses show association with oocyte developmental competence, embryo ploidy status, and embryo outcomes. METHODS:This prospective observational cohort pilot study assessed levels of mRNA biomarkers in 163...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-019-01489-8
更新日期：2019-07-01 00:00:00
abstract：OBJECTIVE:To report cases of in vitro fertilization-frozen embryo transfer (IVF-FET) with single blastocyst transfer resulting in di- or tri-chorionic pregnancies, and to review the literature on monozygotic, multi-chorionic pregnancies originating at the blastocyst stage. DESIGN:Retrospective case series and literatu...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章,评审
doi：10.1007/s10815-018-1329-8
更新日期：2018-12-01 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:The aim was to assess the fertilizing capacity of spermatozoa cool-preserved in electrolyte-free (EF) solution. METHODS:Mouse spermatozoa were cool-preserved in EF solution and the acrosomal status of the spermatozoa was compared before and after preservation using chlortetracycline stain. Mouse oocytes were i...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1023/a:1009449926015
更新日期：2000-08-01 00:00:00
abstract：PURPOSE:To review and discuss the pathophysiology and prevention strategies for ovarian hyperstimulation syndrome (OHSS), which is a condition that may occur in up to 20% of the high risk women submitted to assisted reproductive technology cycles. METHODS:The English language literature on these topics were reviewed t...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章,评审
doi：10.1007/s10815-010-9387-6
更新日期：2010-02-01 00:00:00
abstract：:Artificial intelligence (AI) has been proposed as a potential tool to help address many of the existing problems related with empirical or subjective assessments of clinical and embryological decision points during the treatment of infertility. AI technologies are reviewed and potential areas of implementation of algo...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-020-01950-z
更新日期：2020-11-01 00:00:00
abstract：PURPOSE:Human follicular fluid constitutes the microenvironment of follicles and includes various biological active proteins that can affect follicle growth and oocyte fertilization. Conducting proteomic evaluations of human follicular fluid may be helpful for identifying potential biomarkers possibly possessing a pred...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-013-0004-3
更新日期：2013-09-01 00:00:00
abstract：PURPOSE:Endocrine disrupting compounds (EDCs) have been shown to affect multiple biologic processes especially steroid-hormone processes. We sought to determine differences in DNA methylation exists between women with and without endometriosis following exposure to polybrominated biphenyl (PBB). METHODS:Cross-sectiona...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-020-01695-9
更新日期：2020-02-01 00:00:00
abstract：:Infertility is a major health problem across the world. One of the main reasons for male infertility are defects in sperm. Semen analysis is the most common test utilized to evaluate male fertility and since it suffers from multiple drawbacks, reproduction scientists have tried to find new molecular markers for detect...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-019-01674-9
更新日期：2020-04-01 00:00:00
abstract：PURPOSE:To determine the expression of SMAD transcripts in human granulosa cells. METHODS:Luteinized mural granulosa cells were harvested from forty women undergoing oocyte retrieval, and RNAs were isolated. SMAD expression levels were determined by polymerase chain reaction (PCR) and quantitative real-time PCR (q-RTP...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-011-9609-6
更新日期：2011-09-01 00:00:00
abstract：PURPOSE:To evaluate whether ejaculated human spermatozoa undergo complete apoptosis or necrosis during experimental semen bacterial infection in vitro. METHODS:Apoptotic markers, including mitochondrial transmembrane potential (ΔΨm), phosphatidylserine (PS) externalization, and DNA fragmentation, have been detected si...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-015-0462-x
更新日期：2015-05-01 00:00:00
abstract：PURPOSE:To examine the efficacy of low-dose hCG using a GnRH antagonist protocol. METHODS:Prospective randomized study was performed at the Kyono Ladies Clinic. One hundred ninety-two women (<40 -years old, <3 previous cycles) were randomly assigned to GnRH agonist (buserelin) long protocol (LP, n = 66), GnRH antagoni...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章,随机对照试验
doi：10.1007/s10815-006-9036-2
更新日期：2006-05-01 00:00:00
abstract：:Ovum donation is now an integral part of the management of infertility, providing a solution for patients previously considered permanently infertile. The indications now include not only patients with premature ovarian failure, but also patients who are carriers of genetic disorders, patients with repeated failures i...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章,评审
doi：10.1007/BF01207729
更新日期：1993-02-01 00:00:00
abstract：PURPOSE:Recent studies have shown that proliferation and differentiation of various cell types is regulated by cell-cycle-related proteins, such as protein p53 and retinoblastoma protein pRb. METHODS:Three monoclonal antibodies to p53 (PAb240, PAb421, and PAb1801) and 3H9 monoclonal antibody to pRb were utilized for l...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/BF02211381
更新日期：1995-02-01 00:00:00
abstract：PURPOSE:Anti-Müllerian hormone (AMH) is used as a marker for ovarian reserve. Since 2011, the standard test for AMH has been the Beckman Coulter Generation (Gen) II assay. However, in July 2013, the protocol was revised due to falsely low readings. The aim of this study was to compare AMH levels measured with the origi...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-015-0579-y
更新日期：2015-11-01 00:00:00
abstract：PURPOSE:The aim of this prospective sibling oocyte study was to evaluate whether reduced culture volume improves blastocyst formation. METHODS:Twenty-three patients with extended embryo culture until day 5 were selected for the study. After injection, 345 sibling oocytes were individually cultured in either 25 or 7 μl...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-015-0541-z
更新日期：2015-09-01 00:00:00
abstract：PURPOSE:Our purpose was (a) to investigate relationships of baseline endocrine serum levels with selected assisted reproduction (AR) parameters and (b) to evaluate the clinical applicability of an immunofluorometric assay (IFMA) as an alternative to a radioimmunoassay (RIA). METHODS:Basal endocrine values (analyzed by...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/BF02212926
更新日期：1995-04-01 00:00:00
abstract：PURPOSE:Although ovarian tissue transportation has been validated for up to 24 h, there is no standard protocol to date. We aimed to elucidate how existing media currently used for ovarian tissue transportation affect ovarian tissue metabolism and cell viability. METHODS:Cow ovarian fragments were immersed in 0.9% NaC...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-020-01935-y
更新日期：2020-10-01 00:00:00
abstract：PURPOSE:We investigated if automated TLI selection may be a valuable strategy to identify those euploid embryos with the best chances of success. METHODS:This is a unicentric and retrospective study involving 244 patients undergoing preimplantational genetic screening (PGS) cycles with autologous oocytes or oocyte don...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-018-1265-7
更新日期：2018-09-01 00:00:00
abstract：PURPOSE:To study the effect of CYP17a inhibitor, "ketoconazole," on clomiphene responsiveness in PCOS patients. METHODS:Prospective analysis was employed with the setup at Alexandria IVF/ICSI center. Ninety-seven insulin-resistant PCOS patients undergoing ovulation induction using clomiphene citrate were randomly divi...
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:1013165006406
更新日期：2001-11-01 00:00:00
