Abstract：
BACKGROUND:One-cell mouse embryos were used to determine the effects of drop size and number of embryos per drop for optimum development in vitro. METHODS:Embryos were collected from immature C57BL6 female mice superovulated with pregnant mare serum gonadotropin and human chorionic gonadotropin and mated by CD1 males. Groups of 1, 5, 10, or 20 embryos were cultured in 5-, 10-, 20-, or 40-microliters drops of CZB under silicon oil at 37.5 degrees C in a humidified atmosphere of 5% CO2 and 95% air. RESULTS:Development score for embryos cultured in 10 microliters was higher than that of embryos cultured in 20 or 40 microliters. Embryos cultured in groups of 5, 10, or 20 had higher development scores than embryos cultured singly. The highest development score was obtained by the combination of 5 embryos per 10-microliters drop. The percentage of live embryos in 20 or 40 microliters was lower than that of embryos cultured in 10 microliters. Additionally, the percentage of live embryos cultured singly was lower than that of embryos cultured in groups. CONCLUSIONS:Our results suggest that a stimulatory interaction occurs among embryos possibly exerted through the secretion of growth factors. This effect can be diluted if the embryos are cultured in large drops or singly.
journal_name
J Assist Reprod Genetjournal_title
Journal of assisted reproduction and geneticsauthors
Canseco RS,Sparks AE,Pearson RE,Gwazdauskas FCdoi
10.1007/BF01204051keywords:
subject
Has Abstractpub_date
1992-10-01 00:00:00pages
454-7issue
5eissn
1058-0468issn
1573-7330journal_volume
9pub_type
杂志文章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:To investigate the effect of the cumulative exposure to estradiol (E(2)) during the follicular phase on IVF outcome. METHODS:Patients were stimulated with recombinant FSH after GnRH agonist suppression and had a day 3-embryo transfer. Estrogen exposure was determined as the area under the curve (AUC) for serum...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-006-9101-x
更新日期：2007-04-01 00:00:00
abstract：PURPOSE:The purpose of this study was to evaluate the influences of tropical weather on patients with different ovarian responses in the treatment of assisted reproductive technology. METHODS:Six-hundred fourty-seven women underwent their first treatment cycles were retrospectively analyzed. Patients received embryo t...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-005-4922-6
更新日期：2005-05-01 00:00:00
abstract：RESEARCH QUESTION:Granulosa cells (GCs) surrounding oocytes are crucial for follicular growth, oocyte development, ovulation, and luteinization under the dynamic co-stimulation of follicle stimulating hormone (FSH) and luteinizing hormone (LH). This study aimed to investigate the effect of LH levels on GCs in preovulat...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-021-02066-8
更新日期：2021-01-14 00:00:00
abstract：PURPOSE:C-myc was studied in cyclooxygenase (COX)-2 associated granulosa cell apoptosis, METHODS:Granulosa cells (N = 5 cases) were incubated for 24 h in either 1 or 50 microM COX-2 inhibitor, 1 or 50 microM COX-1/COX-2 inhibitor, negative or positive controls Single primer polymerase chain reaction of c-myc exon 1 we...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1023/a:1021215216246
更新日期：2002-12-01 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:Prior studies suggest that pregnancy outcomes after autologous oocyte cryopreservation are similar to fresh in vitro fertilization (IVF) cycles. It is unknown whether there are differences in pregnancy and perinatal outcomes between cryopreserved oocytes and cryopreserved embryos. METHODS:This is a retrospecti...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-017-0995-2
更新日期：2017-10-01 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：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:Our purpose was to review the available literature concerning the pathogenesis of ovarian hyperstimulation syndrome and, in light of the most recent information, to attempt to provide further insight on this iatrogenic complication associated with the induction of ovulation. METHODS:Published studies related t...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章,评审
doi：10.1023/a:1023052419627
更新日期：1998-04-01 00:00:00
abstract：PURPOSE:To perform complex preimplantation genetic tests (PGT) for aneuploidy screening, Robertsonian translocation, HLA-matching, and X-linked hyper IgM syndrome (XHIGM) caused by a novel mutation c.156 G>T of CD40LG gene. METHODS:Reverse transcription PCR (RT-PCR) and Sanger sequencing were carried out to confirm th...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-020-01846-y
更新日期：2020-08-01 00:00:00
abstract：PURPOSE:To review the history of experimental embryo culture and how culture media that permitted complete preimplantation development in vitro were first discovered, and the physiological insights gained. METHODS:This article reviews the history of in vitro mammalian embryo culture, in particular the efforts that led...
journal_title：Journal of assisted reproduction and genetics
pub_type： 历史文章,杂志文章,评审
doi：10.1007/s10815-013-0095-x
更新日期：2013-08-01 00:00:00
abstract：PURPOSE:This study measured serum early pregnancy factor (EPF) in pregnant red deer (Cervus elaphus) and ascertained whether EPF synthesis is associated with implantation. METHODS:Serial serum samples were taken from mated hinds up to 42 days postconception and analyzed for EPF activity using the rosette inhibition te...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/BF02765751
更新日期：1997-01-01 00:00:00
abstract：PURPOSE:To evaluate the effect of the individual physician performing embryo transfer, on clinical pregnancy rates. METHOD:Data from a total of 485 consecutive embryo transfers performed on 485 women aged 23-37 years were prospectively collected for this study. All patients underwent a standard downregulation long pro...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-006-9032-6
更新日期：2006-07-01 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：OBJECTIVE:This study measured platelet activating factor (PAF) production by rabbit embryos in vitro and ascertained if there is increased PAF production associated with advancing embryonic development. STUDY DESIGN:Two-cell rabbit embryos were recovered from superovulated New Zealand White does and cultured in vitro ...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/BF01213432
更新日期：1993-07-01 00:00:00
abstract：PURPOSE:To ascertain possible cell damage from cryopreservation, the ultrastructure of human oocytes cryopreserved by slow cooling was assessed. MATERIALS AND METHODS:Cryopreservation was performed through two protocols with one-step or two-step propanediol. Fresh control oocytes were examined for comparison. Samples ...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-010-9394-7
更新日期：2010-04-01 00:00:00
abstract：PURPOSE:Oocyte in vitro maturation (IVM) is a patient-friendly reproductive technology but lower success rates than IVF have limited its uptake. Capacitation-IVM (CAPA-IVM) is an innovative new IVM system currently undergoing clinical evaluation. This study aimed to determine temporal effects of the pre-IVM phase of CA...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-019-01610-x
更新日期：2020-01-01 00:00:00
abstract：PURPOSE:The aim of this study was to provide a comprehensive follow-up of fetal and perinatal outcome and the incidence of congenital anomalies in babies born after fresh embryo transfers compared to those conceived spontaneously in infertile couples. METHODS:Retrospective comparative analysis of all clinical pregnanc...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-016-0714-4
更新日期：2016-06-01 00:00:00
abstract：PURPOSE:Murine two-cell embryos (n = 5573) were cultured for 96 hr in human tubal fluid (HTF) medium (n = 2709) or alpha modification of minimum essential medium (MEM; n = 2864) through the hatched blastocyst stage from mid-1990 to mid-1991. An additional 373 embryos were cultured in MEM or HTF with 0, 1, 5, or 10 ng/m...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/BF01239220
更新日期：1993-04-01 00:00:00
abstract：PURPOSE:The association between apolipoprotein E (ApoE) gene polymorphism and the risk of recurrent pregnancy loss (RPL) remains controversial. The present meta-analysis was performed to derive a precise estimate of the relationship. METHOD(S):We searched the PubMed, Embase, and Web of Science data- bases for studies ...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章,meta分析
doi：10.1007/s10815-013-0118-7
更新日期：2013-12-01 00:00:00
abstract：PURPOSE:The male factor is nowadays one of the major problems in the treatment of infertility. New methods of assisted fertilization such as the intracytoplasmic sperm injection (ICSI) show better fertilization and pregnancy rates than classical IVF. METHOD:In this study, we present a new technique of sperm preparatio...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/BF02211143
更新日期：1995-08-01 00:00:00
abstract：PURPOSE:To show whether increased amounts of spermatozoa used in insemination of preovulatory oocytes in isolated teratozoospermia according to Kruger's strict criteria gives good fertilization rates. METHODS:This study was carried out from September 1993 to November 1994 for a total of 77 cycles, with sperm samples c...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/BF02068872
更新日期：1996-01-01 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: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 assesse circulating levels of Anti-Müllerian hormone (AMH) as a predictor of oocyte number and their potential to mature in vitro in both normo-ovulatory (NO) women and in women with Polycystic Ovary Syndrome (PCOS) undergoing in vitro maturation (IVM) treatments. METHODS:We prospectively studied NO women a...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-013-9996-y
更新日期：2013-06-01 00:00:00
abstract：PURPOSE:Surrogacy remains the only option for having a biologic child for a unique population of women with severe medical conditions. However, no study has looked at surrogacy outcome as a result of the type of ovarian stimulation of the intended mother [controlled ovarian stimulation (COH), modified natural cycle (MN...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-017-0877-7
更新日期：2017-04-01 00:00:00
abstract：PURPOSE:There is clinical evidence that early cleavage timing parameters predictive of blastocyst development also correlate with embryo implantation potential. The aim of this study is to determine the developmental competency of embryos with delayed blastulation. METHODS:Retrospective study performed from 2015 to 20...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-019-01501-1
更新日期：2019-08-01 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:Cell-free mRNAs (cfmRNAs) were quantitatively measured in human seminal plasma and its relationship with semen quality was investigated. METHODS:Herein, a prospectively, controlled investigation was performed to study seminal plasma HSPA2 and uPA cfmRNA alterations between 21 asthenozoospermic patients and 16 ...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-016-0730-4
更新日期：2016-08-01 00:00:00
