Abstract：
OBJECTIVE:The objective of this study was to test the hypothesis that cocaine alters placental prostaglandin production in vitro. STUDY DESIGN:Placentas were obtained from healthy women (n = 6) after normal vaginal delivery at term. Placental explants (300 mg) were incubated in duplicate at 37 degrees C in the presence of 0, 30, 300, or 3000 ng/ml cocaine. Thromboxane and prostacyclin production was measured by radioimmunoassay of their stable metabolites (thromboxane B2 and 6-keto-prostaglandin F1 alpha) at 0, 0.5, 1.0, 1.5, 2, 4, 8, and 12 hours. Analysis of variance with Newman-Keuls test was used for statistical analysis. RESULTS:Cocaine increased thromboxane production in a dose-dependent manner (p < 0.001) and decreased prostacyclin production (p < 0.05). Cocaine increased the ratio of thromboxane/prostacyclin production (p < 0.05). CONCLUSION:Cocaine alters the placental production of prostaglandins in vitro, favoring thromboxane production, which may cause vasoconstriction and decrease uteroplacental blood flow.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Monga M,Chmielowiec S,Andres RL,Troyer LR,Parisi VMdoi
10.1016/0002-9378(94)90015-9subject
Has Abstractpub_date
1994-10-01 00:00:00pages
965-9issue
4eissn
0002-9378issn
1097-6868pii
0002-9378(94)90015-9journal_volume
171pub_type
杂志文章abstract：:Following infusion of parathyroid extract (PTE), parathyroid hormone (PTH) did not cross the placenta from the monkey mother to her fetus. Although maternal PTH levels increased four- to 12-fold, fetal PTH levels remained at the base line at all times tested. To determine if PTH crossed the placenta from fetus to moth...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(77)90593-2
更新日期：1977-10-15 00:00:00
abstract：:A 24-year-old nulliparous woman underwent laparotomy for a large pelvic mass. Grapelike tumor extending from the uterus into the broad ligaments and peritoneal cavity was found. A diagnosis of sarcoma appeared likely, but radical surgery was avoided when frozen sections indicated a histologically benign smooth muscle ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(95)90378-x
更新日期：1995-09-01 00:00:00
abstract：OBJECTIVE:Excess soluble vascular endothelial growth factor receptor, fms-like tyrosine kinase-1 (sFlt-1), and reduced placental growth factor (PlGF) mediate the genesis of preeclampsia. Cigarette smoking reduces the risk of preeclampsia. We hypothesized that placental secretion of sFlt-1 and PlGF was affected by expos...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2007.06.025
更新日期：2007-10-01 00:00:00
abstract：:This is a retrospective study designed to compare the results of treatment of minimal and mild types of endometriosis with danazol alone, operative laparoscopy and danazol combined, and operative laparoscopy alone. The population consisted of 112 patients with minimal endometriosis and 126 patients with the mild type....
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(88)80173-x
更新日期：1988-10-01 00:00:00
abstract：OBJECTIVES:The aim of this study was to analyze records of uterine electrical activity made from the abdominal surface of pregnant and laboring rats to examine whether similar quantitative information can be extracted as from direct recording from the uterine muscle. STUDY DESIGN:Electrical activity during pregnancy (...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(98)70498-3
更新日期：1998-04-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to evaluate the effectiveness of a human immunodeficiency virus (HIV) rapid testing (RT) program. STUDY DESIGN:From April 13, 2004, to April 13, 2005, pregnant women at 2 high-risk maternity hospitals with no or incomplete HIV testing results (negative tests at <34 weeks, none t...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,多中心研究
doi：10.1016/j.ajog.2007.09.005
更新日期：2008-02-01 00:00:00
abstract：OBJECTIVE:This study was carried out to determine the efficacy and safety of the vaginal approach to paravaginal repair of symptomatic paravaginal defect cystocele. METHODS:This study is an observational case series of 100 consecutive women, referred from December 1996 to August 2000, with symptomatic grade II to IV p...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2001.119073
更新日期：2001-12-01 00:00:00
abstract：OBJECTIVE:We sought to determine if uterine tachysystole, ≥ 6 contractions per 10 minutes, within the first 4 hours of labor induction, is associated with adverse infant outcomes. STUDY DESIGN:This was a prospective cohort study of 584 women ≥ 37 weeks' gestation undergoing induction of labor with 100 μg of oral misop...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2012.07.032
更新日期：2012-10-01 00:00:00
abstract：:Although perimortem delivery has been recorded in the medical literature for millennia, the procedural intent has evolved to the current fetocentric approach, predicating timing of delivery following maternal cardiopulmonary arrest to optimize neonatal outcome. We suggest a call to action to reinforce the concept that...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/j.ajog.2015.07.019
更新日期：2015-11-01 00:00:00
abstract：:Although generally safe, combined oral contraceptives (COCs) are associated with risks, including an estimated 2-fold increased relative risk of cardiovascular events. For most women taking COCs for contraception, absolute cardiovascular risks are very low, and the overall risks of COCs are outweighed by the risks of ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2012.01.037
更新日期：2013-01-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to describe trends for pelvic floor disorder (PFD)-related ambulatory visits. STUDY DESIGN:Data were derived from the National Ambulatory Medical Care Survey and the National Hospital Ambulatory Care Survey. PFD-related visits were based on ICD-9 codes. We collapsed 12 survey ye...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2009.06.016
更新日期：2009-11-01 00:00:00
abstract：:In the treatment of pelvic disorders, ovarian tissue was surgically removed from 165 patients (divided into four age groups) and examined microscopically. This article presents the incidence of polynuclear follicles and discusses potential signficance of these structures in the histogenesis of the ovarian teratoma. ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(77)90289-7
更新日期：1977-05-01 00:00:00
abstract：:The fetal heart rate acceleration response to an acoustic stimulation was compared to the traditional nonstress test in regard to pregnancy outcome, as reflected by the incidence of intrapartum fetal distress, meconium staining of the amniotic fluid, 1- and 5-minute Apgar scores, and perinatal mortality. Fetuses with ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(84)80029-0
更新日期：1984-01-01 00:00:00
abstract：OBJECTIVE:This study was undertaken to address the role of oxidative stress in preeclampsia. STUDY DESIGN:We measured urinary 8,12-iso-iPF(2alpha)-VI, a chemically stable, free-radical catalyzed product, in a case control study of severe preeclampsia nested within the trial of Calcium for Preeclampsia Prevention. Case...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2001.116754
更新日期：2001-09-01 00:00:00
abstract：OBJECTIVE:Vaginal breech delivery rates have been accepted widely to be in decline and the Term Breech Trial (TBT) has recommended delivery of a breech-presenting infant by elective cesarean section delivery. Our aim was to examine the rate of vaginal delivery of term breech pregnancies in the 8 years before and after ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2012.03.029
更新日期：2012-06-01 00:00:00
abstract：OBJECTIVE:Oxidative stress occurs when the production of damaging free radicals and other oxidative molecules exceeds the capacity of the body's antioxidant defenses. Oxidative stress is implicated in diseases that are associated with prematurity (such as retinopathy, cerebral palsy, intraventricular hemorrhage, and ne...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2003.357
更新日期：2003-07-01 00:00:00
abstract：:Diagnostic procedures in gynecologic urology are no longer limited to the medical history, physical examination, and Marshall test. Newer diagnostic procedures include urethroscopy, urodynamics with cystometry, urethral closure pressure profiles, uroflowmetry, electromyography of the pelvic floor musculature, and radi...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(80)91119-9
更新日期：1980-06-15 00:00:00
abstract：:Myometrium was obtained from pregnant volunteers by biopsy of the upper margin of the uterine incision at the time of cesarean section. A multistep enzymatic digestion with collagenase, trypsin, protease, and deoxyribonuclease yielded viable cells capable of contraction. Primary monolayer culture was carried out in th...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(88)90463-2
更新日期：1988-11-01 00:00:00
abstract：:Gynecologic cancer records of 4,238 patients treated between 1956 and 1974 were reviewed. Sixteen patients developed noeplasia in the cervix or vagina 10 or more years following pelvic irradiation. Three patients had squamous carcinoma in situ; the other 13 patients had invasive squamous cancer involving the upper vag...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(77)90445-8
更新日期：1977-03-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to determine compliance with postmolar pregnancy surveillance in our indigent population. STUDY DESIGN:Data for all women who were diagnosed with molar pregnancy from January 1996 through December 2000 were entered prospectively into a database. After remission, postmolar pregna...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2003.297
更新日期：2003-05-01 00:00:00
abstract：OBJECTIVE:We undertook this study to systematically assess prevailing pain management regimes used at our hospital in women after cesarean delivery. STUDY DESIGN:Between August 1999 and July 2000, all women delivered by cesarean section at Parkland Hospital were assigned to 1 of 4 different pain management strategies:...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2003.10.707
更新日期：2004-05-01 00:00:00
abstract：OBJECTIVE:Our purpose was to describe embryonal anatomic structures by use of intrauterine ultrasonography with a 20 MHz flexible catheter-based, high-resolution, real-time miniature transducer. STUDY DESIGN:Thirty-four women about to undergo therapeutic abortion from 7 to 9.9 weeks' gestation were studied with specia...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(95)90425-5
更新日期：1995-12-01 00:00:00
abstract：OBJECTIVE:Intrauterine pressure catheter (IUPC) is the primary device used to evaluate uterine activity. In contrast to the IUPC, electrical uterine myography (EUM) enables noninvasive measurement of frequency, intensity, and tone of contractions. The aim of this study was to determine the accuracy of EUM compared to I...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：10.1016/j.ajog.2011.12.015
更新日期：2012-05-01 00:00:00
abstract：:Five hundred obstetric and gynecologic malpractice litigation claims were analyzed to determine the incidence of claims that could not be defended because of breach of standards of care, problems with documentation, or both. Of the 500 claims, 294 were obstetric and 206 were gynecologic. Of the obstetric claims, 79 (2...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(91)90082-3
更新日期：1991-08-01 00:00:00
abstract：OBJECTIVE:The standard weekly dose of 17-alpha hydroxyprogesterone caproate (17OHP-C; 250 mg/wk) to reduce the risk of recurrent preterm birth was adopted without regard to patient characteristics. We examined the relationship between prepregnancy body mass index (BMI) and gestational age at birth after 17OHP-C prophyl...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2015.04.018
更新日期：2015-08-01 00:00:00
abstract：OBJECTIVE:Women with Papanicolaou tests classified as cervical intraepithelial neoplasia grade I or II are treated conservatively in many countries. However, these women are at an increased risk of having underlying prevalent and incident grade III cervical intraepithelial neoplasia and invasive cancer. This study was ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2002.118918
更新日期：2002-01-01 00:00:00
abstract：OBJECTIVE:Ureaplasma colonization in the setting of polymicrobial flora is common in women with chorioamnionitis, and is a risk factor for preterm delivery and neonatal morbidity. We hypothesized that Ureaplasma colonization of amniotic fluid would modulate chorioamnionitis induced by Escherichia coli lipopolysaccharid...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2013.02.018
更新日期：2013-05-01 00:00:00
abstract：:Twelve cases of retroperitoneal mucinous cystadenoma or mucinous cystadenocarcinoma in women have been reported in the literature. We report an additional case. The histogenesis of mucinous cystadenomas and mucinous cystadenocarcinomas in the retroperitoneum is not clear, but that these lesions may arise from teratoma...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(89)90201-9
更新日期：1989-05-01 00:00:00
abstract：BACKGROUND:Premenstrual syndrome is characterized by the cyclic occurrence of physical, behavioral and psychological symptoms during the luteal phase of the menstrual cycle disappearing within a few days of the onset of menstruation. Generally symptoms are mild, but 5-8% of women suffer from severe PMS. Apart from conv...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.ajog.2017.02.028
更新日期：2017-08-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to estimate the frequency at which laparoscopic surgery is performed to treat female pelvic pain. STUDY DESIGN:Using the National Survey of Ambulatory Surgery, we performed a retrospective, cross-sectional study of women who had been diagnosed with abdominal or pelvic pain who u...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2005.09.001
更新日期：2006-03-01 00:00:00
