Abstract：
OBJECTIVE:To investigate whether zona drilling of oocytes, a technique used to locally disrupt the zona pellucida, causes important changes in intracellular pH. DESIGN AND METHODS:In a first set of experiments, intracellular pH was measured during zona drilling of mouse oocytes, using pH-sensitive microelectrodes. In a second set of experiments human oocytes that failed to fertilize were used to measure intracellular pH during drilling. In these cells intracellular pH was measured using microfluorimetry with the pH-sensitive dye 2',7'-bis-carboxyethyl-5(6)-carboxyfluorescein. RESULTS:In mouse oocytes intracellular pH dropped from 7.25 +/- 0.02 (mean +/- SEM) to 7.09 +/- 0.03 during zona drilling, followed by a recovery to pH 7.17 +/- 0.02 after 4 minutes (n = 20). In human oocytes, intracellular pH dropped over 0.36 +/- 0.10 pH units during drilling, followed by a recovery that was complete within 4 minutes (n = 14). CONCLUSION:Zona drilling is associated with a significant cytoplasmic acidification both in mouse and human oocytes. This effect is perhaps related to the high incidence of cytoplasmic degeneration after zona drilling of human oocytes.
journal_name
Fertil Steriljournal_title
Fertility and sterilityauthors
Depypere HT,Leybaert Ldoi
10.1016/s0015-0282(16)56525-xsubject
Has Abstractpub_date
1994-02-01 00:00:00pages
319-23issue
2eissn
0015-0282issn
1556-5653pii
S0015-0282(16)56525-Xjournal_volume
61pub_type
杂志文章abstract：:Our rapid staining method, accomplished by adding the vital fluorochrome bisbenzimide (Hoechst 33342) directly into the sperm droplet before fertilization, eases visual interpretation of sperm penetration and decondensation. For both within- and between-experiment comparisons, inclusion of bisbenzimide did not influen...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：
更新日期：1991-01-01 00:00:00
abstract：OBJECTIVE:To investigate whether nicotine-induced testicular toxicity involves the induction of apoptosis in Leydig cells. DESIGN:Cell study using cells of the TM3 cell line derived from mouse Leydig cells. SETTING:Academic research laboratory. INTERVENTION(S):Morphological and biochemical analyses for the detection...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/j.fertnstert.2004.12.013
更新日期：2005-04-01 00:00:00
abstract：OBJECTIVE:To evaluate whether DNA fragmentation and/or mitochondrial membrane potential (MMP) predict natural conception better than standard sperm parameters. DESIGN:Prospective cross-sectional study. SETTING:University medical center. PATIENT(S):Eighty-five infertile and 51 fertile men. INTERVENTION(S):Assessment...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/j.fertnstert.2015.11.037
更新日期：2016-03-01 00:00:00
abstract：OBJECTIVE:To determine whether advanced sperm retrieval is appropriate in cases of obstructive and nonobstructive azoospermia. DESIGN:Prospective controlled study. SETTING:Tertiary care center. PATIENT(S):Men with obstructive and nonobstructive azoospermia, and their partners. INTERVENTION(S):Surgical sperm retriev...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/s0015-0282(99)00298-8
更新日期：1999-09-01 00:00:00
abstract：OBJECTIVE:To report an update on the role of vitamin D (VD) in ovarian physiology with a focus on genes involved in steroidogenesis, follicular development, and ovarian reserve, as well as ovulatory dysfunction associated with polycystic ovary syndrome (PCOS), and ovarian response to assisted reproductive technology (A...
journal_title：Fertility and sterility
pub_type： 杂志文章,评审
doi：10.1016/j.fertnstert.2014.04.046
更新日期：2014-08-01 00:00:00
abstract：OBJECTIVE:To analyze information on assisted reproductive technology (ART) performed worldwide and trends in outcomes over successive years. DESIGN:Cross-sectional survey on access, effectiveness, and safety of ART procedures performed in 53 countries during 2005. SETTING:A total of 2,973 clinics from national and re...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/j.fertnstert.2013.10.005
更新日期：2014-02-01 00:00:00
abstract：:Forty-four women were prospectively evaluated with a 3-hour oral glucose tolerance test while they used a new weekly oral contraceptive drug, R2323. The blood tests were carried out before the drug was administered and again 3 months after its use. Both blood glucose and plasma insulin levels were measured. In the 40 ...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/s0015-0282(16)43513-2
更新日期：1978-09-01 00:00:00
abstract：OBJECTIVE:To examine the relationship between sperm chromatin defects, evaluated by the flow cytometric (FCM) sperm chromatin structure assay (SCSA), and the probability of a pregnancy in a menstrual cycle (fecundability). DESIGN:Follow-up study. SETTING:The Section of Toxicology and Biomedical Sciences, ENEA Casacci...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/s0015-0282(99)00462-8
更新日期：2000-01-01 00:00:00
abstract：OBJECTIVE:To determine whether absence of fertilization in IVF associated with an acrosomal enzyme defect (hyaluronidase deficiency) results from a simple mechanical block to sperm penetration or from a more serious sperm abnormality. DESIGN:Nonrandomized, prospective study. SETTING:Toronto Center for Advanced Reprod...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：
更新日期：1996-05-01 00:00:00
abstract：OBJECTIVE:To assess the hypothesis that pregnancy rates (PRs) after operative laparoscopy (Laparoscopy Group) for endometriosis treatment would be equal to or greater than diagnostic laparoscopy only (No Treatment Group), diagnostic laparoscopy with medical treatment (Medical Treatment Group), and laparotomy (Laparotom...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：
更新日期：1993-01-01 00:00:00
abstract：OBJECTIVE:To evaluate the usefulness of morphology grading of the oocyte-corona-cumulus complex (OCCC) as a marker of oocyte nuclear maturity, fertilizability, embryo cleavage, and likelihood of pregnancy. DESIGN:Prospective cohort study. SETTING:Academic fertility center. PATIENT(S):Eighty-three infertile couples u...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/s0015-0282(99)00100-4
更新日期：1999-05-01 00:00:00
abstract：OBJECTIVE:To clarify whether the metabolism of triglyceride-rich lipoproteins and lipid transfer to high-density lipoprotein (HDL) are altered in patients with polycystic ovary syndrome (PCOS). DESIGN:Case-control study. SETTING:Endocrinology clinics. PATIENT(S):Eight normal-weight (NW) and 15 obese (Ob) patients wi...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/j.fertnstert.2008.12.044
更新日期：2010-04-01 00:00:00
abstract：:In a study of 29 cycles of IVF, ET was performed on day 5 after oocyte recovery when embryos had developed to the morula/blastocyst stage. Three preclinical pregnancies and three live births resulted (2 singleton and 1 twin), giving a viable PR per ET of 10%. It is concluded that while day 5 ET may well be important i...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/s0015-0282(16)54257-5
更新日期：1991-04-01 00:00:00
abstract：OBJECTIVE:To assess the single-dose pharmacokinetics of a recombinant human FSH preparation (Gonal-F; Laboratoires Serono, Aubonne, Switzerland), administered by i.v., IM, and SC routes and its pharmacokinetics at steady state after multiple dosing by the SC route. DESIGN:Twelve healthy down-regulated female volunteer...
journal_title：Fertility and sterility
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1994-04-01 00:00:00
abstract：:Under pressure from involved families and time limitations, Israeli judges tend to authorize postmortem sperm retrieval and freezing, even in unmarried men and in contradiction to current, albeit non-legally binding, guidelines of the Attorney General. Postmortem sperm retrieval in our institution (2003 to June 2009) ...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/j.fertnstert.2009.10.035
更新日期：2010-08-01 00:00:00
abstract：OBJECTIVE:To determine the feasibility of performing in vivo magnetic resonance elastography (MRE) for uterine leiomyoma. DESIGN:Pilot study. SETTING:Academic medical center. PATIENT(S):Six subjects planning surgical excision of uterine leiomyomas. INTERVENTION(S):MRE before planned surgery. MAIN OUTCOME MEASURE(S...
journal_title：Fertility and sterility
pub_type： 临床试验,杂志文章
doi：10.1016/j.fertnstert.2010.06.004
更新日期：2011-01-01 00:00:00
abstract：OBJECTIVE:To investigate the proportional changes of CD4(+)CD25(+) regulatory T cells in peripheral blood and decidua in unexplained recurrent spontaneous abortion (URSA) and normal pregnant (NP) women. DESIGN:Prospective, case-control study. SETTING:Large public hospital in a major city in China. PATIENT(S):Twenty-...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/j.fertnstert.2007.03.037
更新日期：2008-03-01 00:00:00
abstract：:To histologically and biologically assess the impairment of testicular function after active immunization with LH, adult male rats (49) and rabbits (9) were actively immunized with bovine LH and then compared with saline-injected controls. When the measured antibody titer was high, the mating behavior of the males wa...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/s0015-0282(16)38046-3
更新日期：1971-02-01 00:00:00
abstract：:The serum levels of bioactive luteinizing hormone (LH), immunoreactive LH, follicle-stimulating hormone, androstenedione (A), and testosterone (T) were determined in nine anovulatory women with polycystic ovarian syndrome (PCOS) before and after laparoscopic ovarian cautery. Eight ovulated spontaneously and three conc...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/s0015-0282(16)53451-7
更新日期：1990-04-01 00:00:00
abstract：OBJECTIVE:To evaluate the importance of exogenous LH in poor responders undergoing IVF with GnRH antagonists. DESIGN:Retrospective cohort study. SETTING:University-based IVF center. PATIENT(S):All patients with a history of poor response to ovarian stimulation undergoing IVF with GnRH antagonists between September 2...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/j.fertnstert.2005.02.028
更新日期：2005-08-01 00:00:00
abstract：OBJECTIVE:To report an unusual case of embryo implantation and superfetation. DESIGN:Retrospective case analysis. SETTING:Oak Brook Fertility Center. PATIENT(S):A 41-year-old woman underwent two consecutive ovarian stimulation cycles interrupted by a normal menstrual period. Ovulation and implantation occurred durin...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/s0015-0282(97)00244-6
更新日期：1997-09-01 00:00:00
abstract：OBJECTIVE:To explore the long-term outcome of patients who began IVF treatment by considering not only treatment outcome in the center but also the parenthood project outcome after discontinuation of unsuccessful IVF. DESIGN:Retrospective cohort follow-up study. SETTING:Two French IVF centers. PATIENT(S):Seven hundr...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/j.fertnstert.2008.05.067
更新日期：2009-07-01 00:00:00
abstract：:Two-cell mouse embryos were cultured in Ham's F-10 medium (Gibco, Grand Island, NY) supplemented with various concentrations of transferrin, insulin, epidermal growth factor, platelet-derived growth factor, or fibroblast growth factor. Rates of development and the cell numbers per blastocyst were compared between embr...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/s0015-0282(16)54082-5
更新日期：1991-01-01 00:00:00
abstract：OBJECTIVE:To determine the variability in the recognition of normal sperm and various sperm defects using the strict criteria recommended by the World Health Organization (5th edition, 2010). DESIGN:Sperm morphologic assessment by three experienced evaluators. SETTING:Image processing laboratory and reproduction rese...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/j.fertnstert.2013.12.047
更新日期：2014-04-01 00:00:00
abstract：OBJECTIVE:To explore the role of tumor necrosis factor (TNF) α, an early embryonic product, on endometrial epithelial cell migration and endometrial milk fat globule-epidermal growth factor 8 protein (MFG-E8) production. DESIGN:In vitro study. SETTING:Academic center. INTERVENTION(S):Ishikawa cells, used as surrogat...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/j.fertnstert.2013.10.032
更新日期：2014-02-01 00:00:00
abstract：OBJECTIVE:To assess the variability of antimüllerian hormone (AMH) concentrations in women with "adequate ovarian reserve" during unstimulated menstrual cycles and to determine the impact on clinical classifications. DESIGN:Pilot cohort study. SETTING:Private fertility clinic. PATIENT(S):Twelve consecutive women (ag...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/j.fertnstert.2013.01.132
更新日期：2013-05-01 00:00:00
abstract：:Cryopreservation has become a central pillar in assisted reproduction, reflected in the exponential increase of "freeze all" cycles in the past few years. Vitrification makes it possible to cool and warm human eggs and embryos with far less cryo-damage than 'slow-freeze' and allows nearly intact survival of embryos wi...
journal_title：Fertility and sterility
pub_type： 杂志文章,评审
doi：10.1016/j.fertnstert.2019.12.009
更新日期：2020-02-01 00:00:00
abstract：OBJECTIVES:To investigate whether endometrial thickness on the day of hCG administration is a predictor of intrauterine insemination (IUI) success. DESIGN:A retrospective study. PATIENT(S):Two hundred forty-nine women undergoing IUI cycles. SETTING:University hospital-based infertility center. INTERVENTION(S):Endom...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/j.fertnstert.2006.12.010
更新日期：2007-08-01 00:00:00
abstract：OBJECTIVE:To evaluate the phenotype, proliferative, and differentiation capacities in vitro of stromal cells derived from peritoneal, ovarian, and deeply infiltrating endometriosis. DESIGN:Experimental study using phase contrast microscopy, immunocytochemistry, and functional bioassays. SETTING:University-based labor...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/j.fertnstert.2005.08.046
更新日期：2006-03-01 00:00:00
abstract：OBJECTIVE:To evaluate the effect of reproductive history on the outcome of different procedures in assisted reproductive technologies (ART) comparing IVF, ICSI, and cryopreserved embryo transfer (CPE). DESIGN:Prospective registration of ART cycles and their outcomes. SETTING:One hundred three reproductive programs in...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/s0015-0282(03)00760-x
更新日期：2003-09-01 00:00:00
