Abstract：
:The regional distribution of cerebral blood flow was assessed in eight control and eight morphometrically growth-retarded fetal lambs to determine whether perfusion patterns within the cerebral circulation are altered in this model of intrauterine growth retardation. Growth retardation was induced by repetitive embolization of the uterine circulation, and flow distribution was assessed by use of microspheres. Distribution to 22 separate areas, expressed as a flow/weight ratio, was virtually identical in the two groups. Cortical gray matter received 56% of total cerebral flow, and cortical white matter received 7%. However, flow X gm-1 in cortical white matter was 85% of that in cortical gray matter. We conclude that perfusion patterns within the cerebral circulation are not altered in this model of intrauterine growth retardation and that, compared to gray matter, cortical white matter has a high flow X gm-1 in fetal life.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Clapp JF 3rd,McLaughlin MK,Gellis J,Hemphill C,Catalano PMdoi
10.1016/0002-9378(84)90460-5subject
Has Abstractpub_date
1984-12-01 00:00:00pages
843-6issue
7eissn
0002-9378issn
1097-6868pii
0002-9378(84)90460-5journal_volume
150pub_type
杂志文章abstract：:The effect of fluids from both complete and partial hydatidiform moles on blood coagulation was determined. Coagulation was evaluated with use of the one-stage prothrombin time and the activated partial thromboplastin time. These studies demonstrated that the fluids shortened the activated partial thromboplastin time ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(85)80263-5
更新日期：1985-11-15 00:00:00
abstract：:The placentas of five mothers with severe preeclampsia who gave birth to moderately growth-retarded term infants were compared to a group of placentas collected from mothers who had uncomplicated pregnancies and normal term infants who were appropriate for gestational age. This study demonstrated that, on a quantitati...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(85)80170-8
更新日期：1985-05-01 00:00:00
abstract：:Previously endovaginal ultrasonography was considered an adjunct for use in full-service ultrasound facilities by subspecialists only. The technique, however, has tremendous application for use by the clinician in the examination room for patients at bimanual examination. This is because the procedure is meant to be p...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(90)90971-9
更新日期：1990-03-01 00:00:00
abstract：OBJECTIVE:The study evaluates lipids profile changes during gestation in pregnancies with and without preeclampsia and/or gestational diabetes. STUDY DESIGN:Lipid profiles were assessed between year prior and after pregnancy in 9911 women without cardiovascular comorbidities. RESULTS:Lipid levels during gestation var...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2009.05.032
更新日期：2009-11-01 00:00:00
abstract：OBJECTIVE:This study compared myoendometrial versus placental radial uterine arteries from late-pregnant rats to evaluate differences in passive mechanical properties and arterial wall hyperplasia. STUDY DESIGN:Myoendometrial and placental radial uterine arteries were dissected from late-pregnant (day 17-19) Sprague-D...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2004.06.094
更新日期：2005-01-01 00:00:00
abstract：OBJECTIVE:The objective of the study was to evaluate the efficacy and safety of global endometrial ablation in women with a history of cesarean delivery. STUDY DESIGN:We performed a historical cohort study of patients who underwent endometrial ablation for menorrhagia between 1998 and 2005. Outcome measures included a...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2011.06.106
更新日期：2011-11-01 00:00:00
abstract：:We have investigated the effect of 17beta-estradiol on lung surfactant production in the fetal rabbit. Pregnant rabbits were administered intramuscularly 75microgram of 17beta-estradiol per day at 25 and 26 days' gestation. Control rabbits were similarly injected with the solvent only. At 27 days' gestation the fetuse...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(79)90479-4
更新日期：1979-01-15 00:00:00
abstract：OBJECTIVES:Smoking is associated with a reduced risk of preeclampsia, but what is the outcome of pregnancy when preeclampsia develops in women who smoke? STUDY DESIGN:Single births in Sweden from 1987 through 1993 to nulliparous women aged 15 to 34 years (N = 317,652) were included. Poisson regression analyses were us...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(97)70455-1
更新日期：1997-07-01 00:00:00
abstract：:The aim of this multiinstitutional study was to evaluate a new cervical indwelling catheter in 84 patients with premature rupture of the membranes at less than 33 weeks' gestation. The average time of insertion of the catheter was 29.1 weeks' gestation, at an average of 2.0 days after rupture, and was left in place fo...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(88)80080-2
更新日期：1988-08-01 00:00:00
abstract：OBJECTIVE:Betamethasone administration in singleton pregnancies causes maternal hyperglycemia. With the increased risk of glucose intolerance in twin pregnancies, we sought to determine whether maternal hyperglycemia after dexamethasone administration is different in twin vs singleton pregnancies. STUDY DESIGN:Patient...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2008.08.004
更新日期：2008-10-01 00:00:00
abstract：:The mechanisms responsible for the onset and progression of preterm labor are poorly understood. In the present study a total of 115 amniotic fluid specimens were analyzed for a lipid that has not previously been detected in amniotic fluid. This glycolipid was identified as ceramide lactoside. It was found in two-dime...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(89)90508-5
更新日期：1989-08-01 00:00:00
abstract：:Relaxin is a peptide hormone produced by the corpus luteum during pregnancy in human beings. There are no extraluteal sites of production of relaxin in women. By means of a heterologous porcine radioimmunoassay, serial serum relaxin concentrations were determined in three women throughout pregnancy and into labor. All...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1979-09-01 00:00:00
abstract：OBJECTIVE:Our purpose was to determine whether cultured human decidual cells produce chemokines in response to different strains of group B streptococci and purified bacterial cell wall components. STUDY DESIGN:Human decidual cells were cultured from term placentas by standard techniques. Different strains of group B ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(97)70162-5
更新日期：1997-09-01 00:00:00
abstract：:Knowledge about human fetal growth and organ development has greatly developed in the last 50 years. Anatomists and physiologists had already described some crucial aspects, for example, the circulation of blood during intrauterine life through the fetal heart, the liver as well as the placenta. However, only in the l...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/j.ajog.2005.12.056
更新日期：2006-04-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to determine the ability of pregnant women to incorporate sophisticated screening information about risk assessment into their decisions about invasive testing in an appropriate way. STUDY DESIGN:Assessment of risk for trisomy 21 was carried out by a combination of maternal age,...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2005.02.134
更新日期：2005-08-01 00:00:00
abstract：:The effect of type I and II diabetes in pregnancy on the circadian rhythm and diurnal excursion of plasma cortisol was studied in the second and third trimesters and post partum. Cosignor analysis demonstrated persistence during gestation of the significant circadian rhythm of the nonpregnant state. As previously repo...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(86)90140-7
更新日期：1986-12-01 00:00:00
abstract：OBJECTIVE:We compared metronidazole 0.75% gel (containing 37.5 mg metronidazole per dose) with ovules containing metronidazole 500 mg and nystatin 100,000 U, for intravaginal treatment of bacterial vaginosis (BV). STUDY DESIGN:In a single-blinded trial, symptomatic women with BV by both Amsel and Nugent criteria were ...
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/j.ajog.2004.06.089
更新日期：2004-12-01 00:00:00
abstract：:Validity refers to an evidence-based claim about the trustworthiness of decisions made from context-specific performance data. Validity requirements for competency-based assessments in obstetrics and gynecology have not been defined in the literature. We explain why validity is intrinsic to any discussion about compet...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2011.01.061
更新日期：2011-05-01 00:00:00
abstract：BACKGROUND:Surgical abortion is a generally safe procedure. Obesity is a known risk factor for complications in other surgical procedures, but insufficient information exists to determine the effects of increasing body mass index on the risk of surgical abortions. OBJECTIVE:The purpose of this study was to determine w...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2017.10.018
更新日期：2018-02-01 00:00:00
abstract：:Prolactin levels in amniotic fluid during the third trimester of human pregnancy showed a wide range of values. There was no apparent correlation between amniotic fluid prolactin concentrations (AF PRL) and lecithin/sphingomyelin (L/S) ratios nor was there a prolactin concentration associated with a mature L/S ratio. ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(81)90321-5
更新日期：1981-02-15 00:00:00
abstract：:Nifedipine, a dihydropyridone calcium entry blocker, has been used with increasing frequency in the treatment of preterm labor. We studied 66 patients in this prospective, randomized trial to evaluate the efficacy and maternal, fetal, and neonatal outcome associated with tocolysis with nifedipine or ritodrine. Deliver...
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(11)90679-6
更新日期：1990-07-01 00:00:00
abstract：OBJECTIVE:Our purpose was to ascertain the prevalence, incidence, and predictors of gynecologic disorders among women infected with human immunodeficiency virus. STUDY DESIGN:We serially assessed 292 women infected with human immunodeficiency virus and 681 uninfected women. Outcomes were incidence and prevalence of se...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(99)70653-8
更新日期：1999-04-01 00:00:00
abstract：OBJECTIVE:Our purpose was to measure fetal liver size in small-for-gestational-age fetuses diagnosed by ultrasonography and to determine whether the small abdominal circumference used to diagnose small for gestational age is the result of a small liver. STUDY DESIGN:Ninety-eight pregnant women who were diagnosed as ha...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(99)70266-8
更新日期：1999-03-01 00:00:00
abstract：:The balance of fluid across capillaries is given by the Starling equation. Because the plasma protein concentration (one of its components) is decreased in pregnancy, we decided to explore the question as to whether hypoproteinemia with intact protein mass (produced by blood volume expansion) or hypoproteinemia with d...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(89)90938-1
更新日期：1989-12-01 00:00:00
abstract：OBJECTIVE:Our purpose was to investigate perfusion pressure changes ex vivo induced by angiotensin II on fetoplacental vasculature pretreated with low-dose acetylsalicylic acid. STUDY DESIGN:Two cotyledons from each of 12 placentas were perfused. The intervillous space of one cotyledon was infused with acetylsalicylic...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(97)70021-8
更新日期：1997-11-01 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：:Immunoreactive gonadotropin-releasing hormone was quantitated in maternal blood. Circulating levels of gonadotropin-releasing hormone were found to be significantly higher during pregnancy than in nonpregnant cycling women. The highest concentrations of gonadotropin-releasing hormone immunoreactivity were observed in ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(84)80142-8
更新日期：1984-10-15 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：:Current concepts of the pathogenesis of preeclampsia involve the generalized dysfunction of maternal vascular endothelial cells. We measured the endothelial isoform of fibronectin as a marker of endothelial cell injury throughout pregnancy in a prospective, case-control study. Nineteen women met strict criteria for th...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(91)90435-t
更新日期：1991-10-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to determine which cervical ripening method, laminaria placement or extra-amniotic saline solution infusion, was associated with the shorter interval from induction to delivery in the second trimester. STUDY DESIGN:Women admitted for indicated second-trimester labor induction with a...
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.2001.112903
更新日期：2001-05-01 00:00:00
