Abstract：
:Lead represents a significant environmental hazard to pregnant women and their offspring. Exposure to high environmental levels of lead has been associated with spontaneous abortion, premature rupture of fetal membranes (PROM), and preterm delivery. The relationship between lower exposures and obstetric complications is unknown. The concentration of lead in the blood was measured in 635 specimens of umbilical cord blood collected at delivery. No relationship was found between concentrations of lead in cord blood and the incidence of PROM, preterm delivery, preeclampsia, or meconium staining. Maternal and infant capillary blood was collected 24 hours post partum from 154 of these deliveries. The concentrations of lead in the blood did not vary significantly among cord, infant, and maternal samples, and the three measurements were highly correlated. Levels of zinc protoporphyrin (ZnP) were increased in cord blood as compared with mothers' blood, but no concentration-response relationships between the ratio of cord ZnP to maternal ZnP and lead were found.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Angell NF,Lavery JPdoi
10.1016/s0002-9378(16)32282-7subject
Has Abstractpub_date
1982-01-01 00:00:00pages
40-6issue
1eissn
0002-9378issn
1097-6868pii
S0002-9378(16)32282-7journal_volume
142pub_type
杂志文章abstract：:The progesterone antagonist onapristone was used in guinea pigs during late pregnancy (43 +/- 2 days after coitus) and before term (day 61 after coitus) to investigate the role of progesterone on uterine reactivity to exogenous oxytocin, concentration of oxytocin receptors, and gap junctions in the myometrium. Onapris...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(91)90030-u
更新日期：1991-12-01 00:00:00
abstract：:A new low-frequency Doppler shift signal associated with fetal breathing has been observed. This signal is out of phase with the previously described signal from the inferior vena cava and originates from the umbilical vein. ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(80)90567-0
更新日期：1980-01-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to assess the incidence, case fatality rates, and risk factors of peripartum hysterectomy and arterial embolization for major obstetric hemorrhage. STUDY DESIGN:This was a 2-year prospective nationwide population-based cohort study. All pregnant women in the Netherlands during t...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2009.09.003
更新日期：2010-02-01 00:00:00
abstract：OBJECTIVE:This open-label, two-period, crossover study was conducted to evaluate the effect of a single 150 mg dose of fluconazole on the pharmacokinetics of ethinyl estradiol in healthy female subjects. STUDY DESIGN:Ten subjects regularly taking Ortho-Novum 7/7/7 (Ortho Pharmaceutical, Raritan, N.J.) and 10 subjects ...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/s0002-9378(98)80016-1
更新日期：1998-02-01 00:00:00
abstract：OBJECTIVE:We estimated the risk of complications at birth of extremely large babies (≥5000 g). STUDY DESIGN:This was a cohort study including all births of extremely large babies in 1996 through 2005 and comparison cohort with normal birthweight (1:2) identified in the national birth registration. RESULTS:There were ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2010.12.036
更新日期：2011-05-01 00:00:00
abstract：:We previously reported a significant relationship between the hematocrit levels of anemic fetuses and information derived from ultrasonographic and Doppler flow-velocity waveforms. In this study we prospectively tested two formulas for the prediction of hematocrit values, by use of gestational age, presence or absence...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(89)90516-4
更新日期：1989-08-01 00:00:00
abstract：:Statistical procedures for hypothesis testing and interval estimation of the difference in a pair of Pearl rates are presented. The p value of the test statistic is evaluated exactly from the binomial distribution or approximately from the standard normal distribution. Interval estimation is provided by the test-based...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：10.1016/0002-9378(85)90158-9
更新日期：1985-03-01 00:00:00
abstract：:The effect of actinomycin D on estrogen-induced uterine blood flow was studied in four nonpregnant, oophorectomized sheep, utilizing electromagnetic flow probes chronically implanted around the uterine arteris. Two hours after the intravenous injection of 1 mug of estradiol-17beta per kilogram of body weight, incorpor...
journal_title：American journal of obstetrics and gynecology
pub_type： 历史文章,杂志文章
doi：10.1016/0002-9378(75)90166-0
更新日期：1975-06-01 00:00:00
abstract：:Twelve pregnant women at term with unfavorable cervices (less than or equal to 5 points according to Bishop score) were given prostaglandin E2 for cervical priming and labor induction. Prostaglandin E2 was given in the following manner: 0.5 mg in gel strictly intracervically (n = 4), extraamniotically (n = 4), or pros...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(90)90986-h
更新日期：1990-03-01 00:00:00
abstract：:The adenosine-3',5'-monophosphate (cAMP) level in human amnion has been measured in vitro during short-term incubations, with or without prostaglandin E1 (PGE1) or isoproterenol. Concentration-response and kinetic curves were obtained. Isoproterenol and PGE1 stimulated cAMP production by amnion in a time-dependent man...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(16)32592-3
更新日期：1981-09-15 00:00:00
abstract：:Over a 10-year period 12,643 gynecologic surgical procedures were performed with the patients under general anesthesia. Succinylcholine was the muscle relaxant used in the majority of cases. Four of these patients developed prolonged postoperative apnea; the longest period of apnea was 6 hours. In one patient atypical...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(82)90680-9
更新日期：1982-05-01 00:00:00
abstract：OBJECTIVE:We sought to evaluate the accuracy of a novel system for measuring fetal heart rate (FHR) and ST-segment changes using noninvasive electrodes on the maternal abdomen. STUDY DESIGN:Fetal electrocardiograms were recorded using abdominal sensors from 32 term laboring women who had a fetal scalp electrode (FSE) ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2011.02.066
更新日期：2011-07-01 00:00:00
abstract：:Oligohydramnios is a hallmark for intrauterine growth retardation (IUGR) and has been evaluated in populations suspected of having IUGR. We chose to evaluate its incidence in a routine obstetric population. During a 16-month period, ultrasound scans were performed on 1,408 patients. Severe oligohydramnios was identifi...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(16)32235-9
更新日期：1983-10-15 00:00:00
abstract：OBJECTIVE:The aim of this study was to describe the anatomic and functional results of the discrete fascial defect rectocele repair. STUDY DESIGN:Sixty-nine women underwent rectocele repair at Duke University Medical Center during a 3-year period beginning January 1, 1994. Repair was limited to reapproximation of disc...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(98)70009-2
更新日期：1998-12-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to demonstrate that daily 40-minute whole body exposure to an inhomogeneous static magnetic field (SMF) prolongs induced preterm birth (PTB) in mice. STUDY DESIGN:The murine model for PTB induction was performed by the administration of 25 μg/animal lipopolysaccharide (LPS) intr...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2011.05.012
更新日期：2011-10-01 00:00:00
abstract：OBJECTIVE:Our purpose was to determine whether detection of insulin-like growth factor-binding protein-1 in vaginal secretions could be used in the diagnosis of fetal membrane rupture. STUDY DESIGN:Consenting patients (n = 105) with complaints suspicious of membrane rupture between 24 and 42 weeks of gestation who had...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(94)90461-8
更新日期：1994-07-01 00:00:00
abstract：OBJECTIVE:The objective of the study was the evaluation of a novel multiplex assay to detect fetal Rh blood group D-antigen gene (RHD) loci in maternal plasma from RhD-negative, pregnant women. STUDY DESIGN:An RHD genotyping assay was designed to detect exons 4, 5, 7, and 10 and RHDΨ (pseudogene) of the RHD gene along...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2010.09.028
更新日期：2011-03-01 00:00:00
abstract：OBJECTIVE:To determine the prevalence of placental complications in patients conceived through donor versus autologous oocytes. STUDY DESIGN:A retrospective cohort study including 2 groups of patients who conceived through in vitro fertilization using: (1) donor oocyte (n = 139) and (2) autologous oocyte (n = 126). On...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2014.03.044
更新日期：2014-10-01 00:00:00
abstract：:The epidemiology of gestational trophoblastic disease is not well understood. Methodologic problems with published reports limit the interpretation of incidence data, although the frequency of hydatidiform mole appears to be about one per 1000 pregnancies. No consistent temporal trends in rates of either hydatidiform ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/s0002-9378(84)90370-3
更新日期：1984-10-01 00:00:00
abstract：:Posterior vaginal repair is often poorly understood and ineffectively performed. The goals of reconstructive surgery emphasize relief of symptoms and restoration of normal anatomic relationships and of function. A useful method to preoperatively determine posterior vaginal wall weakness is outlined along with a surgic...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(91)90503-j
更新日期：1991-03-01 00:00:00
abstract：OBJECTIVE:The objective of the study was to examine risk factors for postterm (gestational age >or= 42 weeks) or prolonged (gestational age >or= 41 weeks) pregnancy. STUDY DESIGN:We conducted a retrospective cohort study of all term, singleton pregnancies delivered at a mature, managed care organization. The primary o...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2009.02.034
更新日期：2009-06-01 00:00:00
abstract：:This article is from the "To The Point" series prepared by the Association of Professors of Gynecology and Obstetrics Undergraduate Medical Education Committee. The purpose of this review was to provide an overview of the importance of well-being in medical education. A literature search was performed by a Reference L...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/j.ajog.2019.05.012
更新日期：2019-12-01 00:00:00
abstract：OBJECTIVE:Nitric oxide deficiency has been implicated in adverse pregnancy outcomes. Mice that lack endothelial nitric oxide synthase (NOS3) have abnormal in vitro vascular reactivity. Our objective was to assess the effect of a previous pregnancy on the abnormal vascular function of NOS3 knockout mice. STUDY DESIGN:C...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2007.06.062
更新日期：2007-09-01 00:00:00
abstract：OBJECTIVE:The objective of this study was to characterize the innervation of the human female levator ani muscles. STUDY DESIGN:Detailed dissections of the peripheral innervation of the iliococcygeal, pubococcygeal, puborectal, and coccygeal muscles were performed in 12 fresh-frozen female cadavers (aged, 32-100 years...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2002.124844
更新日期：2002-07-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to investigate the significance of preterm acidosis and its risk factors. STUDY DESIGN:From a cohort of 786 consecutive singleton neonates who were born after spontaneous or iatrogenic preterm delivery at 24.0-33.6 weeks of gestation from January 1993 to December 2005 with an ev...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2007.07.009
更新日期：2007-09-01 00:00:00
abstract：:A new method is herein described that uses the most recent computer science techniques to obtain digitalized colposcopic images that may be useful not only as documents, but also as research tools. Because computer graphics is a recent and ever-growing discipline, our method, too, might undergo considerable improvemen...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(89)80021-3
更新日期：1989-03-01 00:00:00
abstract：:Vaginitis is one of the most common causes of patient visits to gynecologists, primary care providers, and urgent care centers. However, many women leave without a clear diagnosis or experience recurrent symptoms despite treatment. The 3 most common etiologies of vaginitis are trichomonas, bacterial vaginosis, and vul...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/j.ajog.2019.09.001
更新日期：2020-02-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to investigate various outcome measures of stimulation with highly purified subcutaneous follicle-stimulating hormone (Fertinex, a urofollitropin) compared with first- and second-generation urinary human menopausal gonadotropin standards (Pergonal, Metrodin). STUDY DESIGN:Retrospect...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(98)70356-4
更新日期：1998-08-01 00:00:00
abstract：OBJECTIVE:Our purpose was to determine the incidence of birth injury in a cohort of macrosomic infants (birth weight >4000 gm) and analyze the association between persistent injury and delivery method. STUDY DESIGN:Deliveries of 2924 macrosomic infants were reviewed. Outcomes were compared with those of 16,711 infants...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(97)70435-6
更新日期：1997-07-01 00:00:00
abstract：:The rates of maternal morbidity and mortality in the United States demand a comprehensive approach to assessing pregnancy-related risks. Numerous medical and nonmedical factors contribute to maternal morbidity and mortality. Reducing the number of women who experience pregnancy morbidity requires identifying which wom...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2020.12.006
更新日期：2020-12-09 00:00:00
