Abstract:
:The effect of progesterone on estrogen-induced uterine blood flow was investigated in repeated experiments in seven nonpregnant, oophorectomized ewes with chronically implanted electromagnetic flow probes and catheters inserted into branches of the uterine arteries. Administered alone, progesterone has no effect on base-line uterine blood flow. Following intramuscular injection of progesterone (3 to 5 mg-per kilogram of body weight), peak uterine blood flow responses to 1 microng of estradiol-17beta were suppressed by 25 per cent compared to those of control animals. Direct intra-arterial infusion of progesterone, at concentrations sufficient to reproduce uterine venous levels observed in late pregnancy in the sheep, inhibited estrogen-induced uterine blood flow by 20 per cent. The findings support the hypothesis that progesterone modulates the estrogen-induced flow responses in both the pregnant and nonpregnant uterine vascular bed.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Resnik R,Brink GW,Plumer MHdoi
10.1016/0002-9378(77)90617-2subject
Has Abstractpub_date
1977-06-01 00:00:00pages
251-4issue
3eissn
0002-9378issn
1097-6868pii
0002-9378(77)90617-2journal_volume
128pub_type
杂志文章abstract:OBJECTIVE:Because there is a dearth of literature, we developed an ethical framework to guide decision making about the management of pregnancy of patients with schizophrenia. STUDY DESIGN:We review pertinent literature on schizophrenia and pregnancy, including information on maternal and fetal risks and outcomes, and...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1067/mob.2002.125767
更新日期:2002-09-01 00:00:00
abstract:OBJECTIVE:Oregon and federal laws prohibit giving informed consent for permanent contraception when presenting for an abortion. The primary objective of this study was to estimate the number of unintended pregnancies associated with this barrier to obtaining concurrent tubal occlusion and abortion, compared with the cu...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2014.04.039
更新日期:2014-07-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to assess maternal and fetal morbidity and death in cases of severe preterm preeclampsia that were managed expectantly. STUDY DESIGN:It is a retrospective study that included 155 singleton pregnancies with severe preeclampsia at <34 weeks of gestation that were managed expectant...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2004.10.621
更新日期:2005-04-01 00:00:00
abstract::The ability of the calcium antagonist nifedipine to inhibit uterine contractions during labor and in the postpartum period was measured in the ewe. The hemodynamic effects of tocolytic doses of this drug were measured and compared with the hemodynamic effects of equivalent doses of ritodrine. Intravenous nifedipine wa...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(85)90397-7
更新日期:1985-04-15 00:00:00
abstract::Previous studies have reported that cigarette smoking is a major source of exposure to cadmium (Cd). This study was carried out to determine the degree of exposure to Cd of pregnant women who smoke and to determine the degree of exposure to Cd of pregnant women who smoke and to determine the disposition of the Cd in t...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(82)90786-4
更新日期:1982-04-15 00:00:00
abstract:OBJECTIVE:Our purpose was to determine the usefulness of deoxyribonucleic acid ploidy and S-phase fraction as prognostic factors in patients with cervical cancer. STUDY DESIGN:Paraffin-embedded tumor specimens were obtained from 123 patients with cervical cancer (mean age 51 years, range 21 to 87 years). The mean foll...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(94)90394-8
更新日期:1994-12-01 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 objective of the study was to assess the prevalence of levator ani denervation and reinnervation 6 months after the first delivery. STUDY DESIGN:Ninety-six primigravida women underwent quantitative electromyography of the levator ani during the third trimester and twice postpartum. A 95% confidence inter...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2008.12.044
更新日期:2009-05-01 00:00:00
abstract:OBJECTIVE:A depressed skull fracture is an inward buckling of the calvarial bones and is referred to as a "ping-pong" fracture. This study aimed to look at differences between "spontaneous" and "instrument-associated" depressed skull fractures. STUDY DESIGN:This retrospective, case-control analysis included every neon...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.ajog.2004.06.035
更新日期:2005-01-01 00:00:00
abstract:OBJECTIVE:We sought to develop a valid, reliable assessment of intraoperative judgment by residents during gynecologic surgery based on Script Concordance Theory. STUDY DESIGN:This was a multicenter prospective study involving 5 obstetrics and gynecology residency programs. Surgeons from each site generated case scena...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.ajog.2010.04.010
更新日期:2010-09-01 00:00:00
abstract::Sterilization by fimbriectomy has been thought to be irreversible. The present report describes the surgical approach and results in nine patients after microsurgical tubal reconstruction and indicates that repeated pregnancy is possible after fimbriectomy reversal. Preoperative radiographic studies were used to docum...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(80)90775-9
更新日期:1980-05-15 00:00:00
abstract::Terbutaline (T) is a beta-adrenergic compound which is commonly employed as a tocolytic agent in preterm labor. We evaluated the metabolic and biophysical consequences of infusion of T into six pregnant women in preterm labor. Our results showed that the infusion of T led to the development of hyperglycemia, hyperinsu...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0002-9378(15)33300-7
更新日期:1981-11-15 00:00:00
abstract:OBJECTIVE:This study is a survey of the determinants of refractoriness to the pressor effects of angiotensin II during normal pregnancy. STUDY DESIGN:In 25 normal pregnant women, the effective angiotensin II pressor dose was determined 88 times from the twenty-fifth to the thirty-second week of gestation. Immediately ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0002-9378(11)90617-6
更新日期:1992-04-01 00:00:00
abstract::In the rabbit model of the ovarian hyperstimulation syndrome, animals given ovine prolactin with human menopausal gonadotropins (hMGs), as compared to animals receiving hMGs alone, demonstrated an increase in the formation of ascitic fluid, a decrease in mean plasma estradiol, and an increase in the mean plasma proges...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(83)90690-7
更新日期:1983-04-01 00:00:00
abstract:BACKGROUND:A rapid increase in restrictive abortion legislation in the United States has sparked renewed interest in self-managed abortion as a response to clinic access barriers. Yet little is known about knowledge of, interest in, and experiences of self-managed medication abortion among patients who obtain abortion ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2020.02.026
更新日期:2020-08-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to determine the effect of docosahexaenoic acid supplementation on plasma phospholipid docosahexaenoic acid content and indices of depression and information processing for women who breast-feed. STUDY DESIGN:Mothers who planned to breast-feed their infants were assigned randoml...
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:10.1067/mob.2003.275
更新日期:2003-05-01 00:00:00
abstract:OBJECTIVE:Our purpose was to investigate whether the sensitivity of myometrial cells to oxytocin is affected by prolonged exposure to oxytocin antagonists. STUDY DESIGN:Tissue slices or cultured myometrial cells were exposed to peptides in vitro. Myometrial activation was studied by measuring the formation of inositol...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(94)90414-6
更新日期:1994-12-01 00:00:00
abstract:OBJECTIVE:Our purpose was to determine the accuracy of the summated amniotic fluid index designed to estimate the total amniotic fluid volume in twin pregnancies. STUDY DESIGN:The summated amniotic fluid index was measured in 62 normal diamniotic twin pregnancies by adding the deepest vertical pockets in the four quad...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0002-9378(97)70011-5
更新日期:1997-11-01 00:00:00
abstract::Recombinant human-activated protein C (rhAPC) has been suggested to treat sepsis. We present the case of a 19-year-old pregnant patient at the 18th week of gestation with septic shock syndrome that originated from urinary tract infection and was successfully treated with rhAPC. ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2005.04.046
更新日期:2005-09-01 00:00:00
abstract:OBJECTIVE:Laparoscopically assisted vaginal hysterectomy (LAVH), which usually involves the use of an intrauterine manipulator for optimal surgical control, has been shown to be as effective and safe as conventional total abdominal hysterectomy (TAH) for the staging of endometrial carcinoma. The purpose of this study w...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2012.10.009
更新日期:2013-01-01 00:00:00
abstract::Components of fetal behavioral state organization reflect the successful integration of the central nervous system, have a specific developmental timetable, and can be studied with fetal ultrasonographic techniques. To test the hypothesis that evaluation of state organization is a marker of abnormal central nervous sy...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(89)90380-3
更新日期:1989-09-01 00:00:00
abstract:OBJECTIVE:Our purpose was to determine from published experience in humans whether metronidazole exposure during the first trimester of pregnancy is associated with an increased teratogenic risk. STUDY DESIGN:All published articles reporting on metronidazole use during pregnancy were screened by two independent review...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章,meta分析
doi:10.1016/0002-9378(95)90567-7
更新日期:1995-02-01 00:00:00
abstract:OBJECTIVE:The objective of the study was to determine the amniotic fluid soluble intercellular adhesion molecule-1 concentrations in women with preterm labor in relation to intra-amniotic infection. STUDY DESIGN:Amniotic fluids from 125 women with preterm labor (78 with preterm delivery and 47 with term deliveries) we...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2006.05.020
更新日期:2006-12-01 00:00:00
abstract:OBJECTIVE:Our objective was to determine the localization of immunoreactive endothelin in human cyclic endometrium and in umbilical cord during normal delivery and after cesarean section. STUDY DESIGN:Fixed dated endometrial tissue (n = 41) and umbilical cord (n = 6) were subjected to immunohistochemistry with an anti...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0002-9378(11)91652-4
更新日期:1992-07-01 00:00:00
abstract:OBJECTIVE:Our purpose was to evaluate the effect of peritoneal fluid from women with endometriosis on sperm motility and function in an in vitro model. STUDY DESIGN:Peritoneal fluid was collected at laparoscopy from patients with and without endometriosis. Human donor sperm was diluted with this fluid, and its effect ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0002-9378(96)70210-7
更新日期:1996-06-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to assess whether endometrial polyps (EMPs) represent cancer precursors. STUDY DESIGN:Age standardized incidence ratios (SIRs) of histologically verified endometrial cancers (EmCas) were estimated in women with EMPs and in women with uterine leiomyomata, which is a condition tha...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2010.03.036
更新日期:2010-09-01 00:00:00
abstract::Male hormonal contraception, based on the suppression of both gonadotropins, follicle-stimulating hormone and luteinizing hormone, resulting in marked decrease in sperm production, is designed for couples in stable relationships where the male partner desires to assume family planning responsibilities using reversible...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章,评审
doi:10.1016/j.ajog.2004.01.057
更新日期:2004-04-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to determine factors responsible for the increasing number of deaths from corpus cancer over three time periods. STUDY DESIGN:Data were collected from the Surveillance, Epidemiology and End Results database from 1988-2001. Kaplan-Meier and Cox proportional hazards regression ana...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2007.08.075
更新日期:2008-02-01 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 objective was to explore the association between maternal ethnicity and maternal antepartum complications of pregnancy, maternal sociodemographic factors, and newborn characteristics with the incidence of hyaline membrane disease. STUDY DESIGN:By using a retrospective cohort analysis the incidence of hya...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(93)90496-6
更新日期:1993-02-01 00:00:00