Abstract：
:The effects of cooling and warming on meiotic spindles of mouse oocytes have been assessed by transmission electron microscopy. Intact cumulus-oocyte complexes were immediately cooled from 37 to 15, 4, 0, and -7 degrees C (seeding temperature) for 15 min in a programmed biological freezer and fixed at these temperatures. Other complexes, cooled to these temperatures, were rapidly warmed to 37 degrees C and incubated for 2 hr before fixation at 37 degrees C. Of 334 oocytes assessed at various temperatures, at least 100 were examined for metaphase II spindles. Spindle microtubules completely disappear at 0 and -7 degrees C, while complete or partial depolymerization of microtubules was observed at 4 degrees C. Cooling to 15 degrees C did not cause major disruptions of spindle structure in most oocytes. Chromosomes tended to rotate or clump at lower temperatures but chromosome scatter outside the spindle zone was rarely observed. Centrosomal material was fragmented at 4 degrees C and occasionally at 15 degrees C and was not evident at the spindle poles at 0 and -7 degrees C. Kinetochores were seen at all temperatures. Spindle structure was evidently restored in the majority of oocytes on rewarming at 37 degrees C. Changes in the ooplasm induced by cooling were elongation and disruption of vesicular smooth endoplasmic reticulum, especially between lipid globules and disappearance of fibrillar inclusions. Cortical granule exocytosis was not observed on cooling, while microfilaments were intact. Swelling of membranous organelles was also observed in cumulus cells. Most of the cytoplasmic changes were also reversed on rewarming. The response of mouse oocytes to cooling is compared to that of human oocytes, reported previously.
journal_name
J Assist Reprod Genetjournal_title
Journal of assisted reproduction and geneticsauthors
Sathananthan AH,Kirby C,Trounson A,Philipatos D,Shaw Jdoi
10.1007/BF01203754keywords:
subject
Has Abstractpub_date
1992-04-01 00:00:00pages
139-48issue
2eissn
1058-0468issn
1573-7330journal_volume
9pub_type
杂志文章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: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 aim of this analysis was to study whether monozygotic twinning (MZT) events occur in clusters after IVF and, if so, to explore possible explanations for this clustering. METHODS:This is a retrospective cohort study carried out in a single, large university-affiliated reproductive medicine practice. Medical...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-015-0616-x
更新日期：2016-01-01 00:00:00
abstract：PURPOSE:The aim of the present study was to determine whether supplementation of resveratrol, a stilbenoid antioxidant with therapeutic significance, influences goat (Capra hircus) oocyte maturation and subsequent embryonic development and expression of apoptosis and early embryonic development-related genes. METHODS:...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-013-0116-9
更新日期：2014-02-01 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：OBJECTIVE:To evaluate the feasibility of adjusted mitochondrial DNA quantification in human embryos as a biomarker for implantation potential. DESIGN:Double-blind, observational, prospective analysis of an Asian population in a single university-affiliated in vitro fertilization center. A total of 1617 embryos derived...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-019-01542-6
更新日期：2019-09-01 00:00:00
abstract：PURPOSE:We attempted to identify the genes involved in the pathogenesis of uterine leiomyomas, under a hypothesis that the aberrant expression of upstream regulatory genes caused by aberrant DNA methylation is involved in the onset and development of uterine leiomyomas. METHODS:To find such genes, we compared genome-w...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-019-01582-y
更新日期：2019-11-01 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：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 identify characteristics of female patients and of semen that were associated with live birth following intrauterine insemination (IUI). METHODS:Retrospective review of medical and laboratory results from 533 women who underwent IUI with partner's sperm from 1993 through 1995. RESULTS:Among 1728 cycles, 11...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1023/a:1009402214820
更新日期：2000-05-01 00:00:00
abstract：PURPOSE:Complete oocyte lysis in in vitro fertilization (IVF) is a rare event, but one against which we remain helpless. The recurrence of this phenomenon in some women in each of their IVF attempts, regardless of treatment, together with the results of animal experiments led us to investigate the possible involvement ...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-013-0141-8
更新日期：2014-02-01 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:To provide a comprehensive analysis of mtDNA quantity in D5 and D6 blastocysts, as well as a further insight to the origin of delayed blastocyst development. METHODS:A retrospective cohort analysis of 829 D5 and 472 D6 blastocysts from 460 patients who underwent in vitro fertilization (IVF) with next-generatio...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-020-02045-5
更新日期：2021-01-20 00:00:00
abstract：PURPOSE:To identify gender differences in leadership and academic rank within academic reproductive endocrinology (REI) programs with fellowships in the USA. METHODS:Official institutional websites of the 2017-2018 American Board of Obstetrics and Gynecology (ABOG)-accredited reproductive endocrinology fellowship prog...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-020-01866-8
更新日期：2020-08-01 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：INTRODUCTION:In vitro fertilisation has become a very common procedure in the infertility practice due to both accessibility and good success rates. DISCUSSION:Complications, however, are constant reminders that no procedure is totally safe. In this paper, we present a case of IVF pregnancy that presented with pelvic ...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-008-9222-5
更新日期：2008-07-01 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:The effect of coculturing mouse embryos with cryopreserved human oviduct epithelial cells was investigated. The cryopreserved cells in Cellbanker were thawed and cultured in Richard D. Goldsby culture medium to establish monolayers. Two-cell-stage mouse embryos were cultured alone (control group) or cocultured ...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/BF02214143
更新日期：1994-08-01 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：:In an attempt to assess the effect of perfluorinated compounds (PFC) on oocytes quality and fertilization rate, we studied follicular fluid (FF) PFC levels in 18 patients undergoing IVF-ET cycles. A significant correlation (R = 0.75; P < 0.001) was observed between FF PFC levels and fertilization rate. Moreover, patie...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-011-9548-2
更新日期：2011-05-01 00:00:00
abstract：PURPOSE:To compare morphokinetic parameters and quality of embryos derived from GnRH antagonist ICSI cycles triggered either with GnRH agonist or standard hCG between matched groups of patients. METHODS:Morphokinetic parameters of embryos derived from matched first GnRH antagonist ICSI cycles triggered by GnRH agonist...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-020-01953-w
更新日期：2020-11-01 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:Endometrial thickness is important for implantation. Little data addresses the etiology of persistently thin endometrium. We present a patient cohort in order to define common features and draw conclusions. METHODS:Thirteen out of 1,405 IVF patients repeatedly had thin unresponsive endometrium (<7 mm). Age, hi...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-008-9245-y
更新日期：2008-08-01 00:00:00
abstract：PURPOSE:To investigate the influence of sperm DNA integrity on the zona binding ability of mouse spermatozoa in relation to their sex chromosomal constitution. METHOD(S):In this prospective experimental study, the sperm DNA fragmentation was induced by exposing testicular area of Swiss Albino mice (Mus musculus) to di...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-013-0123-x
更新日期：2013-12-01 00:00:00
abstract：PURPOSE:To evaluate if several genetic loci that are associated with variation in normal menopause age and early menopause can account for a poor response to controlled ovarian stimulation. METHODS:A total of 71 patients age ≤35 years old who were undergoing intracytoplasmic sperm injection were genotyped for four gen...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-012-9735-9
更新日期：2012-05-01 00:00:00
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 co...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章,评审
doi：10.1023/a:1022560914833
更新日期：1998-05-01 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
abstract：PURPOSE:The aim of this study is to provide data on the practice of Luteal Phase Oocyte Retrieval (LuPOR). The authors assess cell-free DNA levels in follicular fluid (ff cfDNA) from poor responders undergoing natural cycles, and comparing it to respective data originating from follicular phase oocyte retrievals. METH...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-020-01743-4
更新日期：2020-05-01 00:00:00
abstract：PURPOSE:To explore the effect of group culture on the developmental potential of discarded embryos in in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI) cycles and establish the human embryonic stem cell lines for future research. METHORDS:Fresh discarded embryos were collected from the IVF/ICSI-ET pro...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-014-0308-y
更新日期：2014-10-01 00:00:00
abstract：PURPOSE:To compare the in-vitro fertilization (IVF) outcomes of cancer patients who underwent oocyte retrieval and embryo/oocyte cryopreservation prior to gonadotoxic therapy to those of age and time-matched controls with tubal factor infertility. METHODS:All cancer patients who underwent embryo/oocyte cryopreservatio...
journal_title：Journal of assisted reproduction and genetics
pub_type： 杂志文章
doi：10.1007/s10815-015-0428-z
更新日期：2015-04-01 00:00:00
