Abstract:
PURPOSE:Histone H3 lysine 9 (H3K9) methylation plays an important role in the regulation of preimplantation embryo development. G9a has been reported to be a major H3K9mono (m1)/dimethylation(m2) methyltransferase and to contain nuclear localization signals. This study was performed to investigate the correlation between H3K9 methylation level and G9a localization when the nuclear membrane undergoes periodic reconstruction in the cell cycle during preimplantation embryo development. METHODS:The fluorescence intensity was examined via immunofluorescence. The mRNA expression of G9awas determined using real-time reverse transcriptase (RT)-PCR. Eight-cell embryos were cultured in KSOM supplemented with nocodazole (0.5 μM) for 12 h. RESULTS:In this study, it was observed that the fluorescence intensity of H3K9m2 and G9a began to increase significantly from the 4-cell stage and reached the peak at the morula stage (p < 0.001), but the fluorescence intensity declined to 4-cell-stage levels when it reached the blastula stage. We observed a similar pattern when we examined G9a mRNA expression. Once the nuclear membrane disintegrated, G9a and H3K9m1 were not detectable by immunofluorescence; when it was reconstructed, G9a and H3K9m1 had relocated to the cell nucleus. However, no significant change was observed in the H3K9m2 localization or in the G9a mRNA level (p > 0.05) during the whole process. JHDM2A was consistently localized in the cytoplasm irrespective of the presence or absence of a nuclear membrane. CONCLUSION:These results indicate dynamic changes in the expression level of H3K9m2 and G9a as preimplantation embryogenesis progresses. G9a co-localized with H3K9 m1 in a nuclear membrane-dependent manner during mouse preimplantation embryo development.
journal_name
J Assist Reprod Genetjournal_title
Journal of assisted reproduction and geneticsauthors
Li B,Tang N,Chen S,Li X,Huang X,Wang X,Sun Fdoi
10.1007/s10815-012-9911-ysubject
Has Abstractpub_date
2013-03-01 00:00:00pages
441-8issue
3eissn
1058-0468issn
1573-7330journal_volume
30pub_type
杂志文章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: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: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:PURPOSE:The aim of the present study is to investigate role of FoxO transcription factors in preimplantation embryo development by knocking down FoxO1, FoxO3, and FoxO4 genes and also to assess cell cycle arrest related proteins, p53 and p21, and apoptosis-related proteins, fas ligand (FASL), and cleaved caspase 3. ME...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-019-01555-1
更新日期:2019-10-01 00:00:00
abstract:PURPOSE:Determine if estrogen used since the beginning of the menstrual flow could improve endometrial tissue compared to standard endometrial preparation for in vitro maturation cycles. METHODS:Twenty polycystic ovary syndrome women were submitted to two estrogen therapy schedules: standard schedule; estrogen began o...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章,随机对照试验
doi:10.1007/s10815-006-9042-4
更新日期:2006-05-01 00:00:00
abstract:PURPOSE:The aim of the study was to assess cytogenetic and embryoscopic characteristics in subsequent miscarriages of spontaneous pregnancy losses (SPL) and recurrent pregnancy losses (RPL). METHODS:A retrospective cohort of 75 women was affected by repeated pregnancy loss. Of those, 34 had SPL, 24 primary RPL, and 17...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-018-1226-1
更新日期:2018-08-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to assess the motility of human sperm incubated with various concentrations of lignocaine. METHODS:Eleven semen samples with a sperm density greater than or equal to 20 x 10(6) ml and progressive motility greater than or equal to 40% were prepared using a swim-up technique. Aliq...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/BF01203827
更新日期:1992-06-01 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:The main drawback of ovarian cryopreservation followed by transplantation is that a large proportion of follicles are lost after transplantation. Thus, effects of erythropoietin (EPO) and desialylated EPO administration on the frozen-thawed canine ovarian xenotransplantation were examined. METHODS:The protecti...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-008-9271-9
更新日期:2008-11-01 00:00:00
abstract:PURPOSE:To compare multiple displacement amplification and OmniPlex whole genome amplification technique performance during array comparative genome hybridization (aCGH), Sanger sequencing, SNaPshot and fragment size analysis downstream applications in frame of multifactor embryo preimplantation genetic testing. METHO...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-018-1187-4
更新日期:2018-08-01 00:00:00
abstract:PURPOSE:This study was designed to evaluate patient management and quality of information given by French oncologists to cancer women concerning fertility issues and possibilities of fertility preservation. METHODS:An online survey was sent to 1161 physicians in all major cancer centers throughout France between May 2...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-018-1251-0
更新日期:2018-10-01 00:00:00
abstract:PURPOSE:We previously reported associations between trace concentrations of Hg, Cd and Pb in blood and urine and reproductive outcomes for women undergoing in-vitro fertilization (IVF). Here we assess measurements in single follicular fluid (FF) specimens from 46 women as a presumably more relevant marker of dose for r...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-012-9882-z
更新日期:2012-12-01 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: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::Recent publicized events of cryogenic storage tank failures have created nationwide concern among infertility patients and patients storing embryos and gametes for future use. To assure patient confidence, quality management (QM) plans applied by in vitro fertilization (IVF) laboratories need to include a more compreh...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章,评审
doi:10.1007/s10815-018-1310-6
更新日期:2019-01-01 00:00:00
abstract:PURPOSE:High-quality motile human spermatozoa were obtained following treatment of semen by simultaneous swim-up into medium and swim-down into an isotonic 40% Percoll solution. RESULTS:This procedure was significantly better than the swim-up method and comparable to discontinuous Percoll gradient centrifugation. Reco...
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/BF01204939
更新日期:1993-05-01 00:00:00
abstract:PURPOSE:The mouse preimplantation embryo development (Ped) gene product, Qa-2, which is the homolog of human HLA-G, influences the rate of preimplantation embryonic development and overall reproductive success. The sex ratio in preimplantation embryos from Ped gene congenic mice was examined in order to determine wheth...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-006-9046-0
更新日期:2006-07-01 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:Matrix metalloproteinases, MMP2 and MMP9, are found to have an important role during ovulation and pregnancy because of their capacity to degrade components of the extracellular matrix (ECM) thereby facilitating cell migration and angiogenesis. In this respect, the aim of the present study was to evaluate the a...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-017-0939-x
更新日期:2017-07-01 00:00:00
abstract:PURPOSE:To test the effects of type of embryo transfer catheter, transfer difficulty, and observations after the transfer procedure on pregnancy and implantation rates in an IVF programme. METHODS:Patients were prepared for IVF using standard protocols. Embryo transfer was performed using either Edwards-Wallace or TDT...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1023/a:1014054421789
更新日期:2002-01-01 00:00:00
abstract:PURPOSE:The aim of this study was to compare the levels of hyperglycosylated human chorionic gonadotropin (hCG-H) secreted from balanced and unbalanced human embryos. METHODS:Single-step culture media samples from 155 good quality embryos, derived from 90 good prognosis patients undergoing intracytoplasmic sperm injec...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-020-01776-9
更新日期:2020-06-01 00:00:00
abstract:BACKGROUND:Literature supports the efficacy of psychosocial intervention for infertile women. An eastern body-mind-spirit group intervention has been developed to help infertile women in the Chinese population cope with the distress arising from IVF treatment. METHODS:The eastern body-mind-spirit group intervention ad...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-005-6418-9
更新日期:2005-12-01 00:00:00
abstract:PURPOSE:This study sought to identify a disease-related gene in a consanguineous Chinese family in which there were two premature ovarian insufficiency (POI) sisters. METHOD:We used whole-exome sequencing and Sanger sequencing to identify the disease-causing gene. Results were verified using an assay of mutant protein...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-019-01675-8
更新日期:2020-02-01 00:00:00
abstract:PURPOSE:karyotype is a well established technique in the study of spontaneous miscarriages but is associated with selective overgrowth of maternal cells and other culture artefact (spp) such as tetraploidy, which could mask the true karyotype of the conceptus. METHODS:328 cases of pregnancy losses were studied by kary...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-010-9460-1
更新日期:2010-11-01 00:00:00
abstract:PURPOSE:Embryonic poly(A)-binding protein (EPAB) and poly(A)-binding protein, cytoplasmic 1 (PABPC1) bind poly(A) tails of mRNAs and mediate their translational regulation in germ cells and early preimplantation embryos. Although expression patterns and possible functions of the Epab and Pabpc1 genes have been examined...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章
doi:10.1007/s10815-014-0362-5
更新日期:2015-01-01 00:00:00
abstract:PURPOSE:The aim of this study is to compare implantation and live birth rates (LBR) between fresh euploid embryo transfers versus cryo-all cycles with a subsequent embryo transfer into a prepared endometrium. MATERIAL AND METHODS:This is a retrospective cohort study. Patients who underwent an IVF cycle with PGS with t...
journal_title:Journal of assisted reproduction and genetics
pub_type: 临床试验,杂志文章
doi:10.1007/s10815-016-0647-y
更新日期:2016-03-01 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:OBJECTIVE:This systematic review sought to evaluate the clinical outcomes of vitrification at the cleavage stage and blastocyst stage for embryo transfer in patients undergoing assisted reproductive technology (ART) treatment. METHODS:We searched for related comparative studies published in the PubMed, EMBASE, and Coc...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章,meta分析,评审
doi:10.1007/s10815-017-1040-1
更新日期:2018-01-01 00:00:00
abstract:PURPOSE:This study was performed to evaluate whether a lower dose (0.2 mg) of cetrorelix would prevent premature LH surge in patients undergoing controlled ovarian hyperstimulation. METHODS:Controlled ovarian hyperstimulation was carried out in 45 patients, starting on menstrual cycle day 3 with recombinant FSH (r-FSH...
journal_title:Journal of assisted reproduction and genetics
pub_type: 临床试验,杂志文章
doi:10.1007/s10815-006-9054-0
更新日期:2006-06-01 00:00:00
abstract::Treatment for cancer has the potential to significantly diminish fertility and, further, to negatively impact the obstetrical outcomes of pregnancies that do occur. Cancer survivors have decreased rates of fertility and increased rates of pregnancy complications, such as preterm birth and low birth weight, after expos...
journal_title:Journal of assisted reproduction and genetics
pub_type: 杂志文章,评审
doi:10.1007/s10815-020-01792-9
更新日期:2020-06-01 00:00:00