Abstract：
:Responses of the component tissues of the nonpregnant ovine uterus to intravenous administration of norepinephrine were determined with radioactively labeled microspheres under flowmeter guidance. During a mean decrease in uterine conductance to 42 per cent of control, no significant differences in the distribution of uterine blood flow to caruncles, endometrium, myometrium, or cervix occurred. These observations differ from those during the last half of gestation, when placental vascular reactivity to norepinephrine is muted. They support the concept that fundamental changes in placental vascular responses occur during placentation.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Griss FC Jrsubject
Has Abstractpub_date
1978-08-01 00:00:00pages
778-9issue
7eissn
0002-9378issn
1097-6868pii
0002-9378(78)90246-6journal_volume
131pub_type
杂志文章abstract：:Cystine animopeptidase (CAP) and leucine aminopeptidase (LAP) in choriocarcinoma cells grown in culture were assayed and characterized electrophoretically. The specific activity of CAP in choriocarcinoma was about 1.5-fold greater than the specific activity of term placenta. The extract of choriocarcinoma contained an...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(75)90574-8
更新日期：1975-07-15 00:00:00
abstract：BACKGROUND:Smoking is one of the most important modifiable risk factors for adverse maternal and neonatal outcomes. Smoking during pregnancy has been associated with fetal growth restriction, adverse pregnancy outcomes, and chronic adult diseases. Existing research has evaluated the risk of smoking on congenital defect...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2019.02.029
更新日期：2019-06-01 00:00:00
abstract：:Two fetuses with obstructive uropathy characterized by striking oligohydramnios and dilatation of the urinary collecting system were identified by ultrasound and treated by percutaneous insertion of a long-term vesicoamniotic silicone rubber shunt. Both fetuses were less than 16 weeks' gestation at diagnosis and less ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(83)90685-3
更新日期：1983-04-01 00:00:00
abstract：OBJECTIVE:We sought to estimate the risk of spontaneous preterm birth in parous women by use of obstetric history, fetal fibronectin, and sonographic cervical length. STUDY DESIGN:The probability of spontaneous preterm birth before 35 weeks' gestation was estimated from a logistic regression model with data from 1282 ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(98)70544-7
更新日期：1998-05-01 00:00:00
abstract：:Smoking increases the risk of lung cancer and cardiovascular disease among persons of both sexes. The risk of cardiovascular disease is further increased among users of oral contraceptives who smoke, particularly those who are >/=35 years old or carry the coagulation factor V Leiden mutation. Other important cardiovas...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/s0002-9378(99)70695-2
更新日期：1999-06-01 00:00:00
abstract：OBJECTIVE:Our purpose was to assess pregnancy outcome for women whose second-trimester triple screen results revealed very low unconjugated estriol levels. STUDY DESIGN:Of 44,146 women screened for alpha-fetoprotein, human chorionic gonadotropin, and unconjugated estriol, a group of women with isolated very low unconj...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(95)91343-2
更新日期：1995-10-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to determine whether quantification of cervicovaginal fluid fetal fibronectin (fFN) improves diagnostic accuracy of spontaneous preterm birth (sPTB) in symptomatic women. STUDY DESIGN:A prospective blinded predefined secondary analysis of a larger study of cervicovaginal fluid f...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2012.10.890
更新日期：2013-02-01 00:00:00
abstract：BACKGROUND:Polycystic ovary syndrome is the most common endocrine disorder affecting women of reproductive age. A number of criteria have been developed for clinical diagnosis of polycystic ovary syndrome, with the Rotterdam criteria being the most inclusive. Evidence suggests that polycystic ovary syndrome is signific...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2020.04.004
更新日期：2020-10-01 00:00:00
abstract：OBJECTIVE:The objective of the study was to determine whether the epidemiology of low-grade ovarian serous cancers is distinct from that of high-grade ovarian serous cancers. STUDY DESIGN:The National Cancer Institute's Surveillance Epidemiology and End Results (SEER) program reports incidence, and survival, data from...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2008.01.035
更新日期：2008-04-01 00:00:00
abstract：OBJECTIVE:We undertook this investigation to explore the effects of ethanol exposure on nitric oxide synthase levels and nitric oxide release. Our hypothesis was that ethanol exposure modifies nitric oxide activity within the placenta as a result of oxidative stress. STUDY DESIGN:Four 10-g samples of term normal human...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2000.104201
更新日期：2000-03-01 00:00:00
abstract：:The purpose of this study was to determine the effect of labor and chorioamnionitis in interleukin-1 production by human placenta. We studied the activity of the placenta to produce interleukin-1 with an enzyme immunoassay by culturing tissue blocks. The placental tissue obtained after labor produced a larger amount o...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(91)90241-i
更新日期：1991-07-01 00:00:00
abstract：OBJECTIVE:The objective of the study was to investigate whether knowledge of human papillomavirus (HPV) deoxyribonucleic acid test results increases sensitivity of guided cytology screening for the detection of cervical intraepithelial neoplasia (CIN)-2 or higher-grade cervical lesions. STUDY DESIGN:This was a prospec...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：10.1016/j.ajog.2011.06.101
更新日期：2011-12-01 00:00:00
abstract：OBJECTIVE:The object of the study was to determine the true surgical pathologic disease extent in patients with clinical stage II adenocarcinoma of the endometrium. STUDY DESIGN:As part of a Gynecologic Oncology Group surgical pathologic protocol of patients with adenocarcinoma of the endometrium, patients with clinic...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(99)70431-x
更新日期：1999-07-01 00:00:00
abstract：:Either Actinomyces israeli, A. naeslundii, or Arachnia propionica was found, by immunofluorescence studies, in cervicovaginal mucus from 36% of 50 women. One or more of these organisms were found in a surprising 27% of those with neither intrauterine contraceptive devices (IUDs) nor intravaginal foreign bodies. The on...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(81)90078-8
更新日期：1981-08-15 00:00:00
abstract：:The increased hospital stay and direct costs of hospitalization as a result of postcesarean section endometritis were evaluated in a case-matched and controlled study (N = 20 in each group). Endometritis increased postcesarean section hospital stay by 3 days and increased hospital cost by $850. Fifteen to 20% of women...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：
更新日期：1980-06-15 00:00:00
abstract：:Cigarette smoking is associated with many health hazards, ranging from lung cancer to low infant birth weight. In the United States in 1994, 23.1% of all women and 14.6% of pregnant women smoked. Few physicians ask their patients about smoking, although minimal effort by physicians could help many smokers to quit. Thi...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1053/ob.1996.v175.a74919
更新日期：1996-09-01 00:00:00
abstract：:The purpose of this study is to clarify fetal cardiovascular effects of four popular analgesics administered to a maternal animal model. Clinical doses of aspirin (14 mg/kg), acetaminophen (14 mg/kg), ibuprofen (6 mg/kg), or indomethacin (0.7 mg/kg) were administered orally to near-term rats. At 1, 4, 8, or 24 hours l...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(90)90042-6
更新日期：1990-05-01 00:00:00
abstract：:In this study, we examined whether the doubling time of human chorionic gonadotropin is different at different stages of early pregnancy and whether the use of multiple nomograms for doubling time of human chorionic gonadotropin rather than a single critical value can improve the diagnosis of ectopic pregnancy. Forty-...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(87)80349-6
更新日期：1987-07-01 00:00:00
abstract：:The practice of gynecological surgery is being reshaped by commercial interests that are promoting the use of trochar-and-mesh surgical kits for the treatment of stress incontinence and pelvic organ prolapse. In this article, we review the recent history of these surgical innovations and discuss the implications of ch...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2009.05.031
更新日期：2010-01-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to evaluate the use of the Lens culinaris agglutinin-reactive alpha-fetoprotein ratio for the detection of fetal Down syndrome in combination with traditional serum markers. STUDY DESIGN:We obtained maternal serum from 530 women with unaffected pregnancies and 31 women who were ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2002.123201
更新日期：2002-07-01 00:00:00
abstract：:The objective of this study was to evaluate the impact of an interdisciplinary team-training program in obstetric emergencies on identifying unsupportive institutional policies and systems-based practices. We implemented a qualitative study design with a purposive sample of interdisciplinary physicians, nurses, and an...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2011.02.022
更新日期：2011-10-01 00:00:00
abstract：:Women who experienced severe primary dysmenorrhea had 90 to 120 minutes of continuous uterine pressure monitoring during their peak period of discomfort. During the initial screening cycle, they were given 40 mg of piroxicam, a nonsteroidal anti-inflammatory drug which inhibits prostaglandin synthesis. The pressure tr...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：10.1016/0002-9378(83)90865-7
更新日期：1983-04-15 00:00:00
abstract：:Serial BPD readings were obtained from 142 normal parturients, with established dates, between 20 to 40 weeks of pregnancy. It is noted that fetal BPD's can be separated into one of three percentile rankings: large (i.e. above the seventy-fifth percentile), average (i.e. twenty-fifth to seventy-fifth percentile), and ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1976-10-15 00:00:00
abstract：OBJECTIVE:The purpose of this study was to determine the fetal response to submaximal maternal exercise at 22 to 26 weeks in pregnancies with abnormal uterine artery Doppler. STUDY DESIGN:This was a prospective comparison of singleton pregnancies with uteroplacental vascular insufficiency (UPVI) (mean uterine pulsatil...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2005.06.035
更新日期：2005-09-01 00:00:00
abstract：:Severe obstructive sleep apnea, a disturbance of sleep resulting from intermittent periodic obstruction of the upper airway, was diagnosed after cardiotocography during which the external tocodynamometer disclosed a pattern initially thought to represent uterine activity. In spite of this obstructive sleep apnea with ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(91)90354-t
更新日期：1991-11-01 00:00:00
abstract：BACKGROUND:Open spina bifida is a major congenital anomaly with an estimated incidence of <1 in 1000. The diagnosis of open spina bifida is usually made during the second trimester, but first-trimester detection rate of spina bifida is increasingly reported. Recently, the mean choroid plexus length to occipitofrontal d...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2020.08.058
更新日期：2020-08-22 00:00:00
abstract：:Five nonstress tests were interpreted by a national sample of obstetricians blinded to specific patient clinical data. The 169 questionnaires suitable for analysis showed that the reliability of the test interpretation, as measured by the kappa statistic, decreased with increasing number of categories of interpretatio...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(85)90459-4
更新日期：1985-11-01 00:00:00
abstract：:The mechanisms whereby estradiol retards ovum transport through the rabbit oviduct were investigated. 40 controls were given intravenous injections of 100 units of human chorionic gonadotropin (HCG). (Ovulation follows injection by 10-14 hours.) 24 hours after injection 20 controls were sacrificed; a 90.5% recovery...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(73)91043-0
更新日期：1973-05-15 00:00:00
abstract：:Four hundred twenty-nine patients were entered into four prospective randomized clinical studies between January 1, 1973, and July 1, 1979. The records of 395 of these were analyzed to determine the proportion of patients surviving 48 months after therapy initiation. Ninety-six patients (24%) were living at 48 months,...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：10.1016/0002-9378(84)90543-x
更新日期：1984-04-01 00:00:00
abstract：:Assisted reproductive technologies have aided thousands of couples, but complications have resulted in multifetal pregnancies creating a bitter irony for infertility patients. In an effort to increase the rate of intact survival, we have successfully performed transabdominal first-trimester selective termination proce...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(90)90922-t
更新日期：1990-06-01 00:00:00
