Abstract:
OBJECTIVE:To assess insulin and insulin-like growth factor I (IGF-I) action in women with polycystic ovarian syndrome (PCOS). DESIGN:Hyperinsulinemia was determined by measuring the insulin responses during a 2-hour oral glucose tolerance test (OGTT). Quantification of in vivo insulin action was determined by a frequently sampled intravenous (IV) OGTT with minimal modeling analysis. In vitro sensitivity to insulin at physiological and supraphysiological concentrations and to IGF-I was assessed by examining colony formation of two hematopoietic cell populations, burst-forming units of the erythroid line (BFU-E) and human leukemia virus immortalized T-cell lines. (The proliferative responses of BFU-E, a primary tissue explant, are presumably conditioned by factors in the immediate blood-borne environment, whereas proliferative responses of T-cell lines are presumed to reflect intrinsic target-cell hormone sensitivity.) SETTING:Tertiary care research institution. PATIENTS:Eight patients (4 obese and 4 nonobese) with PCOS and three healthy women for reference controls. RESULTS:Nonobese (P less than 0.04) and obese patients with PCOS (P less than 0.01) both demonstrated significant hyperinsulinemia after OGTT. In vivo insulin resistance was observed in both nonobese (P less than 0.03) and obese PCOS subjects (P less than 0.01) using frequently sampled IV OGTT. Both nonobese (P less than 0.03) and obese patients with PCOS (P less than 0.01) had blunted in vitro clonal responses of BFU-E, with normal T-cell line clonal responsiveness to physiological levels of insulin and normal BFU-E and T-cell line clonal responses to IGF-I. CONCLUSIONS:These findings demonstrate the following in both nonobese and obese patients with PCOS: (1) there is in vivo hyperinsulinemia and resistance to insulin action on glucose disposal; (2) with BFU-E, there is in vitro resistance to the mitogenic action of insulin but normal responsiveness to IGF-I; and (3) there is normal in vitro mitogenic responsiveness of T-cell lines to both insulin and IGF-I. The intrinsically normal mitogenic responsiveness to insulin and, especially to IGF-I, whether or not under the influence of the bloodborne milieu, provides a mechanism whereby hyperinsulinemia could directly contribute to the ovarian abnormalities that characterize PCOS.
journal_name
Fertil Steriljournal_title
Fertility and sterilityauthors
Buyalos RP,Geffner ME,Bersch N,Judd HL,Watanabe RM,Bergman RN,Golde DWkeywords:
subject
Has Abstractpub_date
1992-04-01 00:00:00pages
796-803issue
4eissn
0015-0282issn
1556-5653pii
S0015-0282(16)54961-9journal_volume
57pub_type
杂志文章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 determine the meiotic behavior of a ring Y chromosome in a semen sample from a 45,X/46,X,r(Y)/46,X,dic r(Y) patient and the possible interchromosomal effects of the ring on other chromosome pairs. DESIGN:Retrospective analysis. SETTING:Universitat Autònoma de Barcelona. PATIENT:An oligoasthenoteratozoos...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(02)04931-2
更新日期:2003-04-01 00:00:00
abstract:OBJECTIVE:To report a rare case of somatic mosaicism with a germline component of campomelic dysplasia in a woman undergoing in vitro fertilization with preimplantation genetic diagnosis (IVF-PGD). DESIGN:Case report. SETTING:Clinic. PATIENT(S):A 28-year old G2P0110 and her 34-year old husband had two previous pregn...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2018.05.002
更新日期:2018-09-01 00:00:00
abstract:OBJECTIVE:To assess the impact on women's reproductive outcomes of barbed sutures to repair uterine breaches during laparoscopic myomectomy compared with traditional smooth sutures. DESIGN:Retrospective, monocentric cohort study, with information on subsequent pregnancies prospectively acquired for some women. SETTIN...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2020.07.036
更新日期:2021-01-01 00:00:00
abstract:OBJECTIVES:To compare the aniline blue assay with and without eosin, and to correlate the results with pregnancy outcome after intracytoplasmic sperm injection (ICSI) procedure. DESIGN:A retrospective study. SETTING:University-based fertility center. PATIENT(S):One hundred thirty infertile patients. INTERVENTION(S)...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2007.09.026
更新日期:2008-11-01 00:00:00
abstract:OBJECTIVE:To investigate whether temporarily withholding FSH and adding androgen could improve follicular response during a microdose flare protocol in women with slow follicular growth or asynchronous follicular development. DESIGN:Observational pilot study. SETTING:University-affiliated private fertility center. P...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2015.09.038
更新日期:2016-01-01 00:00:00
abstract::In this study of 132 infertile couples, findings with hysterosalpingography (HSG) were compared with those observed at subsequent culdoscopy or laparoscopy. Both procedures correctly revealed normal tubes in 29% of the subjects and identical abnormalities in 24%. A complete agreement between the two procedures was thu...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(16)41531-1
更新日期:1975-12-01 00:00:00
abstract::One hundred infertile patients with laparoscopically confirmed ovarian endometriosis were treated with either intranasal (IN) Buserelin (Hoechst, AG, Frankfurt am Main, West Germany) (300 micrograms three times a day) or subcutaneous (SC) Buserelin implant (6.6 mg Buserelin). Serum estradiol was suppressed in the meno...
journal_title:Fertility and sterility
pub_type: 临床试验,杂志文章
doi:10.1016/s0015-0282(16)60783-5
更新日期:1989-07-01 00:00:00
abstract:OBJECTIVE:To investigate the role(s) of hyaluronan synthase 2 (HAS2) and hyaluronan in disease progression of endometriosis and epidermal growth factor (EGF)-induced motility changes of endometriotic cells. DESIGN:A case-control experimental study and in vitro primary cell culture study. SETTING:University hospital-a...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2020.05.005
更新日期:2020-10-01 00:00:00
abstract::Standardized tubal anastomoses were performed alternatively using magnifying loupes or an operating microscope in 44 rabbits. The surgeon's personal assessment of the integrity of the anastomoses was subsequently compared with the histologic result and with pregnancies and nidation indices. After an initial learning p...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:
更新日期:1980-09-01 00:00:00
abstract::Polycystic ovary syndrome presents with many different symptoms and signs, for which different therapies are indicated. However, for the majority of women, the metabolic disorder requires diligence in management, regardless of the presenting complaint. ...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2006.03.011
更新日期:2006-07-01 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 investigate whether testicular cytology by fine needle aspiration (FNA) may be considered a diagnostic parameter in the evaluation of the azoospermic subject. DESIGN:Cytologic smears were obtained using a 23-G needle, stained with May-Grünwald-Giemsa stain and examined under a light Orthoplan microscope (...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(16)54971-1
更新日期:1992-04-01 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::Eighteen premenopausal women with symptomatic leiomyomata uteri were enrolled in a stratified, randomized, double-blind, placebo-controlled study evaluating the efficacy of leuprolide acetate (LA) depot treatment before myomectomy. Stratification was based on pretreatment uterine volume (less than 600 cm3 versus great...
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:1989-11-01 00:00:00
abstract::Discrepancies about a possible relationship between prothrombotic mutations and a decreased uteroplacental blood flow are present in literature. We prospectively evaluated a cohort of pregnant women (n = 41) with bilateral uterine artery notches and found that women with inherited thrombophilia showed a sixfold higher...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2006.01.038
更新日期:2006-09-01 00:00:00
abstract:OBJECTIVE:To determine if the addition of fibrin sealant to incision closure in a rabbit uterine horn myomectomy model affects adhesion formation or strength of incision closure. DESIGN:Prospective randomized controlled trial. SETTING:Academic research center. ANIMAL(S):New Zealand white female rabbits. INTERVENTIO...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2005.07.1337
更新日期:2006-04-01 00:00:00
abstract:OBJECTIVE:To investigate the effects of thawing temperature on sperm function after cryopreservation. The technical aspects of sperm cryopreservation have significantly improved over the last few decades. However, a standard protocol designed to optimize sperm motility recovery after thawing has not yet been establishe...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2008.10.021
更新日期:2010-02-01 00:00:00
abstract:OBJECTIVE:To examine the effects of coping and of infertility-specific and nonspecific stress on pregnancy outcomes after IVF treatment. DESIGN:Cross-sectional design controlling for potential confounding variables. Psychosocial measures were assessed on the day of embryo transfer. SETTING:Fertility clinic in Greece....
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2006.02.096
更新日期:2006-09-01 00:00:00
abstract:OBJECTIVE:To investigate the potential effects of TAT-PRDX2 protein supplementation to the cryopreservation medium on post-thaw sperm quality and function. DESIGN:In vitro prospective study. SETTING:Medical university hospital. PATIENT(S):Fifty normozoospermic, 50 asthenozoospermic, and 50 oligoasthenozoospermic men...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2018.07.008
更新日期:2018-11-01 00:00:00
abstract::A new direct-to-consumer genetic test purports to detect fetal gender as early as five weeks of pregnancy. The availability of this test highlights the consequences of the current system of oversight for genetic tests and underscores the need for an enhanced regulatory framework to ensure the accuracy, reliability, an...
journal_title:Fertility and sterility
pub_type: 社论
doi:10.1016/j.fertnstert.2006.03.016
更新日期:2006-07-01 00:00:00
abstract:OBJECTIVE:To determine the effects of low-dose aspirin on ovarian response, uterine and ovarian blood flow velocity, and implantation and pregnancy rates in patients undergoing IVF. DESIGN:Prospective, randomized, double-blind placebo-controlled assay. SETTING:Department of Reproductive Medicine, CER Medical Institut...
journal_title:Fertility and sterility
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0015-0282(99)00088-6
更新日期:1999-05-01 00:00:00
abstract::Earlier studies have shown inherited thrombophilia to be a risk factor for recurrent implantation failure, raising the question of whether this risk is related to the underlying cause of unexplained infertility or to the mechanisms involved in the implantation process. When nine thrombophilic gene polymorphisms were c...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2008.07.1782
更新日期:2009-04-01 00:00:00
abstract:OBJECTIVE:To characterize the molecular mechanisms by which estrogens reduce adipose tissue mass, with particular focus on genes involved in lipogenesis. DESIGN:This study involves one arm of an open randomized clinical study with parallel group comparison. SETTING:Women's health clinical research unit at a universit...
journal_title:Fertility and sterility
pub_type: 杂志文章,多中心研究
doi:10.1016/j.fertnstert.2007.06.011
更新日期:2008-07-01 00:00:00
abstract::We have examined the effects of prolactin (PRL) on progesterone (P) and estradiol (E2) synthesis by cells obtained from human corpora lutea of early and midluteal phases. The cells were cultured in the presence or absence of low (200 mIU/l) or high levels (1000 mIU/l) of PRL. Basal P, but not E2 was significantly (P l...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:
更新日期:1987-06-01 00:00:00
abstract:OBJECTIVE:To test a sucrose-glycerol cryoprotectant for IUI-ready sperm preparation. DESIGN:Semen aliquots from normozoospermic donors either were subjected to conventional semen freezing (TES and Tris yolk buffer in 7.4% final glycerol) with post-thaw processing or were preprocessed and frozen in HEPES-buffered human...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(97)81491-4
更新日期:1997-07-01 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::The association of insulin resistance, hyperandrogenism, and acanthosis nigricans is well established. The ovary is thought to be the site of the excess androgen production. The purpose of this study was to assess the adrenal contribution to the hyperandrogenic state in these women. Twenty-three patients presenting wi...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(16)50001-6
更新日期:1987-02-01 00:00:00
abstract::Pain associated with endometriosis may involve many mechanisms and requires careful evaluation to confirm the diagnosis and exclude other potential causes. Both medical and surgical treatments for pain related to endometriosis are effective, and choice of treatment must be individualized. This document replaces the do...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2014.02.012
更新日期:2014-04-01 00:00:00
abstract:OBJECTIVE:To evaluate the transcription and translation ability of mitochondria in terminally differentiated granulosa cells, these cells were incubated with ionic calcium. DESIGN:Prospective laboratory research. SETTING:In vitro fertilization laboratory in a university hospital. PATIENT(S):Granulosa cells were harv...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2005.03.072
更新日期:2005-10-01 00:00:00