Abstract：
:We have microsurgically extracted a pronucleus from 11 tripronuclear human zygotes under two different experimental conditions. One group of six zygotes was incubated in cytochalasin D for 30 minutes before manipulation. The remaining five zygotes were manipulated without preincubation in cytoskeletal relaxing agents. When cytoskeletal relaxants were used, all six embryos survived manipulation and cleaved. One embryo arrested spontaneously at the two-cell stage; all others cleaved to at least four cells, and one embryo reached the advanced morula stage. Of the five eggs manipulated without prior cytochalasin D and colcemid treatment, none survived for more than 30 minutes after manipulation. In none of the tripronuclear eggs was it possible to definitely identify the male pronuclei. Because development was interrupted for karyotyping, it is likely that these embryos would have otherwise continued to develop to more advanced stages. These results indicate that it is possible to microsurgically "epronucleate" tripronuclear human zygotes and obtain further development and that use of cytoskeletal relaxants facilities this manipulative procedure. However, because epronucleated embryos have significant developmental potential, chromosome studies are needed to confirm complete removal of a male pronucleus before such techniques can be applied clinically.
journal_name
Fertil Steriljournal_title
Fertility and sterilityauthors
Gordon JW,Grunfeld L,Garrisi GJ,Navot D,Laufer Ndoi
10.1016/s0015-0282(16)60901-9subject
Has Abstractpub_date
1989-09-01 00:00:00pages
367-72issue
3eissn
0015-0282issn
1556-5653pii
S0015-0282(16)60901-9journal_volume
52pub_type
杂志文章abstract：:The hyperandrogenic-insulin-resistant acanthosis nigricans syndrome affects between 2% and 5% of hirsute women and is characterized by INS resistance, elevated INS levels, acanthosis nigricans, and androgen excess. These patients' response to therapy is unclear, although long-acting GnRH-a suppression has been propose...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：
更新日期：1994-03-01 00:00:00
abstract：OBJECTIVE:To recover natural fertility of ewes that were subjected to ovarian failure induced by radiotherapy with an autologous orthotopic graft of cryopreserved germinative tissue. DESIGN:Experimental surgery study. SETTING:University hospital unit. ANIMAL(S):Adult ewes. INTERVENTION(S):Four ewes were submitted t...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/j.fertnstert.2003.05.023
更新日期：2004-01-01 00:00:00
abstract：:The effect of administration of a superactive and long-acting analog of luteinizing hormone-releasing hormone (LH-RH), D-Trp6-LH-RH, in doses of 0.05 or 1 microgram/day for 10 days on the hypothalamic-pituitary-gonadal axis was studied in immature female rats. Treatment with a 0.05-microgram dose of analog produced fe...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/s0015-0282(16)44061-6
更新日期：1979-06-01 00:00:00
abstract：OBJECTIVE:To describe trends in age-specific incidence rates of female sterilization (FS) procedures in Western Australia and to evaluate the effects of the introduction of government-subsidized contraceptive methods and the implementation of the Australian government's baby bonus policy on FS rates. DESIGN:Population...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/j.fertnstert.2016.04.035
更新日期：2016-09-01 00:00:00
abstract：OBJECTIVE:To investigate the association of AMH and AMHRII polymorphisms with reproductive abilities in a sample of women with idiopathic infertility. DESIGN:Case-control study. SETTING:University Department of Obstetrics and Gynecology, and University Unit of Clinical Genetics. PATIENT(S):76 women with idiopathic s...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/j.fertnstert.2009.05.025
更新日期：2010-09-01 00:00:00
abstract：OBJECTIVE:To create, validate, and use a fertility awareness survey based on current U.S. DATA: DESIGN:Cross-sectional study. SETTING:Not applicable. PATIENT(S):Phase 1 included U.S. women ages 18-45; phase 2 included female medical students and obstetrics and gynecology trainees at two urban academic programs. IN...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/j.fertnstert.2017.07.1158
更新日期：2017-10-01 00:00:00
abstract：OBJECTIVE:To assess whether a measure of uterine blood flow impedance (the pulsatility index, PI) as determined by transvaginal ultrasonography with color blood flow imaging, may be used to assess endometrial receptivity immediately before the time of embryo transfer (ET) after assisted conception. DESIGN:A prospectiv...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/s0015-0282(16)54848-1
更新日期：1992-02-01 00:00:00
abstract：:A prospective longitudinal and standardized study is presented, dealing with ultrasonographic and hormonal characteristics of the luteinized unruptured follicle (LUF) syndrome. Among 600 cycles monitored in 270 infertility patients, 40 cycles in 27 patients showed no evidence of follicle rupture, in spite of signs of ...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/s0015-0282(16)48494-3
更新日期：1985-04-01 00:00:00
abstract：OBJECTIVE:To establish a nonhuman primate model addressing follicular development in cryopreserved prepubertal ovarian tissue after xenografting. DESIGN:Experimental study. SETTING:Academic research center. ANIMAL(S):Ovarian tissue from female prepubertal common marmoset (Callytrix jacchus jacchus) grafted into immu...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/j.fertnstert.2010.11.003
更新日期：2011-03-15 00:00:00
abstract：:Catecholamine concentrations were determined in left spermatic vein blood of 18 patients with varicocele. These values were compared with concentrations of catecholamines in the right femoral vein. Of 18 patients studied, 6 had moderate to marked elevations of spermatic vein catecholamine concentrations. Norepinephrin...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/s0015-0282(16)41541-4
更新日期：1975-12-01 00:00:00
abstract：OBJECTIVE:To provide an up-to-date review of studies that have examined the relative role of endometrial development in in vitro fertilization (IVF) and embryo transfer (ET) treatment in relation to the treatment outcome. DATA IDENTIFICATION:The most important published studies and personal communications related to t...
journal_title：Fertility and sterility
pub_type： 杂志文章,评审
doi：10.1016/s0015-0282(16)55008-0
更新日期：1992-05-01 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 determine the relative efficacy of ultrasound-guided embryo transfer and embryo transfer by clinical touch alone. DESIGN:Systematic review and meta-analysis of randomized, controlled trials comparing ultrasound-guided embryo transfer with embryo transfer by clinical touch alone. SETTING:Infertility cente...
journal_title：Fertility and sterility
pub_type： 杂志文章,meta分析,评审
doi：10.1016/s0015-0282(03)01015-x
更新日期：2003-10-01 00:00:00
abstract：OBJECTIVE:To investigate the ability of N-formyl-methionyl-leucyl-phenylalanine (f-MLP), complement 5a (C5a), and nerve growth factor (NGF) to stimulate human spermatozoal reactive oxygen species generation in fertile and infertile patients. DESIGN:Prospective, controlled study measuring human spermatozoal reactive ox...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/s0015-0282(16)55874-9
更新日期：1993-04-01 00:00:00
abstract：OBJECTIVE:To analyze sonographically the endometrium in patients undergoing controlled ovarian stimulation with menotropins in order to determine the significance of endometrial pattern and thickness on pregnancy rate. DESIGN:This is a prospective, nonrandomized study comparing pregnancy rates in patients with hyperec...
journal_title：Fertility and sterility
pub_type： 临床试验,杂志文章
doi：10.1016/s0015-0282(16)58447-7
更新日期：1996-08-01 00:00:00
abstract：:Carbohydrate and lipid metabolism was evaluated in 31 women before and after 1 year's use of a progesterone-releasing intrauterine device. The studies involved measuring blood glucose and plasma insulin levels during a 3-hour oral glucose tolerance test and also measuring fasting cholesterol and triglyceride levels. T...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/s0015-0282(16)43932-4
更新日期：1979-04-01 00:00:00
abstract：OBJECTIVE:To determine the efficacy of combined l-carnitine and l-acetyl-carnitine therapy in infertile males with oligo-astheno-teratozoospermia. DESIGN:Placebo-controlled double-blind randomized trial. SETTING:University tertiary referral center. PATIENT(S):Sixty infertile patients (aged 20-40 years) with the foll...
journal_title：Fertility and sterility
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/j.fertnstert.2003.10.034
更新日期：2004-06-01 00:00:00
abstract：OBJECTIVE:To evaluate the consistency and objectivity of deep neural networks in embryo scoring and making disposition decisions for biopsy and cryopreservation in comparison to grading by highly trained embryologists. DESIGN:Prospective double-blind study using retrospective data. SETTING:U.S.-based large academic f...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/j.fertnstert.2019.12.004
更新日期：2020-04-01 00:00:00
abstract：:Microsurgical tubocornual anastomosis (TCA) and tubouterine implantation are the two primary operations used to treat proximal tubal occlusion (PTO). Tubouterine implantation usually has been reserved for cases of PTO in which the occlusion spans the entire intramural tubal segment. Yet TCA has proven to be more likel...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/s0015-0282(16)49630-5
更新日期：1986-10-01 00:00:00
abstract：OBJECTIVE:To develop and validate a simple and reliable single-cell analysis protocol for the preimplantation genetic diagnosis (PGD) of spinal muscular atrophy (SMA). DESIGN:Molecular tests based on specific enzymatic digestion have already been described for SMA diagnosis. We modified the amplified DNA fragments so ...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/j.fertnstert.2005.03.054
更新日期：2005-09-01 00:00:00
abstract：OBJECTIVE:To explore the contribution of an altered structure of sperm mitochondria to human asthenozoospermia. DESIGN:A retrospective study. SETTING:Andrology Clinic, University of L'Aquila. PATIENT(S):Fifteen ejaculates with forward motility (FM) ≥ 50%, and 57 asthenozoospermic ejaculates (FM <50%, sperm vitality ...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/j.fertnstert.2010.07.1086
更新日期：2011-02-01 00:00:00
abstract：:Physicians who are told or discover information that would be material to another party's participation in an assisted reproductive technology (ART) arrangement (such as lawyer's, donor's, gestational carrier's, or intended parent's) should encourage disclosure to that party. In some instances, it is ethically and leg...
journal_title：Fertility and sterility
pub_type： 杂志文章,评审
doi：10.1016/j.fertnstert.2013.11.007
更新日期：2014-01-01 00:00:00
abstract：:Ham's F-10 medium (Gibco, Grand Island, NY) and medium T6 with and without 15% fetal calf serum (FCS) were compared for their ability to support development of murine blastocysts with the capacity to implant and produce normal fetuses when transferred to pseudopregnant females. All media supported equal rates of blast...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/s0015-0282(16)59545-4
更新日期：1987-11-01 00:00:00
abstract：OBJECTIVE:To determine the incidence of spontaneous pregnancy in women who were not actively undergoing therapy after a successful attempt at IVF/intracytoplasmic sperm injection and to characterize its pattern of occurrence. DESIGN:Retrospective postal questionnaire. SETTING:An assisted reproduction unit at a univer...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/s0015-0282(99)00609-3
更新日期：2000-04-01 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:The growth of the follicles induced by gonadotropins during IVF treatment is accompanied by physiologic angiogenesis, which is essential for the maturation of the oocytes. We describe the IVF-induced changes in the vascularization and compare normal with polycystic ovaries (PCOs). DESIGN:Prospective study. ...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/j.fertnstert.2004.04.048
更新日期：2004-11-01 00:00:00
abstract：OBJECTIVE:To determine if the decline in infertility has been uniform across subgroups. DESIGN:Periodic data from the National Fertility Survey and the National Survey of Family Growth were used to determine which factors contributed to the decline in 12-month infertility in the United States. SETTING:National Survey...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/j.fertnstert.2006.02.129
更新日期：2006-09-01 00:00:00
abstract：:Human GCs obtained from patients undergoing an IVF procedure and treated with CC, hMG, and hCG, lack cAMP responsiveness to hCG stimulation in vitro. After 48 hours in culture, recovery of cAMP production was significantly higher in hCG-stimulated cells grown on dishes coated with ECM than in cells grown on uncoated d...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/s0015-0282(16)49596-8
更新日期：1986-09-01 00:00:00
abstract：OBJECTIVE:To report a rare case of true hermaphroditism presenting in adolescence as bilateral gynecomastia in a phenotypic male. DESIGN:Case report. SETTING:Academic medical center. PATIENT(S):A 19-year-old phenotypic male who presented with pronounced bilateral gynecomastia and was ultimately diagnosed with true h...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/j.fertnstert.2004.09.036
更新日期：2005-04-01 00:00:00
abstract：OBJECTIVE:To measure the flow velocity of the uterine and ovarian arteries through the menstrual cycle to determine there are changes. DESIGN:Serial measurements throughout the menstrual cycle in women attending an infertility clinic, compared with volunteers coming for annual examinations. Transvaginal ultrasound-col...
journal_title：Fertility and sterility
pub_type： 杂志文章
doi：10.1016/s0015-0282(16)54657-3
更新日期：1991-11-01 00:00:00
