Abstract：
:Plasma thyroid hormone and cortisol concentrations were measured from early third trimester to delivery in seven pregnant ewes and their fetuses. A surge in fetal plasma triiodothyronine was found during the six days prior to delivery, the mean values rising from less than 30 to 125 ng. per deciliter. During this period the fetal plasma cortisol also increased from less than 1 to 8.1 microgram per deciliter. During this period there was no significant change in fetal plasma thyroxine (T4) or reverse T3 concentrations and no change in maternal plasma concentrations of any of these hormones. The abrupt increase in fetal plasma T3 concentrations with no rise in plasma T4 suggests that there was an alteration in extrathyroidal conversion of T4 to T3 rather than an increase in thyroid secretion, since the latter would be expected to cause an increase in both plasma T4 and plasma T3. The changes in plasma T3 and cortisol concentrations in a fetus that died in utero eight to 10 days before term resembled those occurring prior to normal parturition.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Nwosu UC,Kaplan MM,Utiger RD,Delivoria-Papadopulos Mdoi
10.1016/0002-9378(78)90741-xsubject
Has Abstractpub_date
1978-11-01 00:00:00pages
489-94issue
5eissn
0002-9378issn
1097-6868pii
0002-9378(78)90741-Xjournal_volume
132pub_type
杂志文章abstract：:Pulmonary beta-adrenergic receptors, which mediate the actions of endogenous catecholamines, increase before birth, an important step in pulmonary maturation. This increase, which occurs primarily in the alveoli, may be hastened by corticosteroids. However, because the lung is composed of more than 40 cell types, we a...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(90)90863-3
更新日期：1990-01-01 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
abstract：:As part of a multicenter prospective study, second-trimester human chorionic gonadotropin and alpha-fetoprotein concentrations were evaluated. Data included maternal age, human chorionic gonadotropin level, alpha-fetoprotein level, weight, race, and pregnancy outcome of 3428 pregnancies at between 15 and 20 weeks' ges...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(91)90305-b
更新日期：1991-09-01 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：BACKGROUND:Pelvic organ prolapse is common, but the underlying etiologies are poorly understood, which limits our current prevention and treatment options. OBJECTIVE:Our primary objective was to compare the uterosacral ligament histologic features in women with and without prolapse using the novel pelvic organ prolaps...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2020.10.040
更新日期：2021-01-01 00:00:00
abstract：:Despite intense study preeclampsia remains enigmatic and a major cause of maternal and fetal morbidity and mortality. Most investigative efforts have focused on the hypertensive component of this disorder with reduced attention given to other equally important characteristics. Increased sensitivity to pressor agents a...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(89)90665-0
更新日期：1989-11-01 00:00:00
abstract：:Clinical research has shown that prostaglandins (PGs) play an important role in every phase of human reproduction. The logical consequence of early basic biological research into PGs is the current interest in clinical evaluation of PGs as agents to induce labor and abortion and to stimulate menstruation. This is a ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(72)90467-x
更新日期：1972-05-01 00:00:00
abstract：BACKGROUND:Cesarean scar pregnancy and cervical pregnancy are unrelated forms of pathological pregnancies carrying significant diagnostic and treatment challenges, with a wide range of treatment effectiveness and complication rates ranging from 10% to 62%. At times, life-saving hysterectomy and uterine artery embolizat...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2016.03.010
更新日期：2016-09-01 00:00:00
abstract：:An improved statistical method for assessing the efficacy of intrauterine contraception is presented. This method, called the log-rank method, is based on a daily life table, which yields the best estimates of the cumulative net termination probabilities. It provides a sensitive chi-square test statistic to detect dif...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(77)90632-9
更新日期：1977-06-01 00:00:00
abstract：:A total of 258 patients with candidal vulvovaginitis, all of whom also exhibited Candida organisms in the rectum, were treated for 1 week with vaginal tablets only (nystatin or clotrimazole) or with both vaginal and oral tablets (nystatin). Mycologic and symptomatic responses were superior for the group receiving comb...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：10.1016/0002-9378(86)90297-8
更新日期：1986-09-01 00:00:00
abstract：:A total of 635 consecutive cesarean sections performed in private practices during the past 20 years are reviewed. In the course of this 20 year period, we have tried to alter gradually our surgical technique used for this procedure to conform to the principles of surgery developed by Halsted. The study is divided int...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(87)80006-6
更新日期：1987-09-01 00:00:00
abstract：OBJECTIVE:To determine if variation exists between ethnicities for risk of perineal, vaginal, and cervical laceration at vaginal delivery. STUDY DESIGN:Retrospective cohort study of nulliparous women who underwent vaginal delivery of a vertex presentation. Predictor variable was ethnicity with outcome variables cervic...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2004.12.007
更新日期：2005-08-01 00:00:00
abstract：:In the field of genetics, a rapid and accurate test for the prenatal determination of fetal sex, especially in cases of sex-linked disorders, is desirable. Amniotic fluid testosterone was measured by the radioimmunoassay technique in 37 samples obtained at saline abortion between 16 and 19 weeks' gestation. Final conf...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(77)90089-8
更新日期：1977-11-01 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：OBJECTIVE:The incidence and outcomes for community-acquired pneumonia during a pregnancy ending with a live birth in the province of Alberta, Canada, were analyzed. STUDY DESIGN:Hospital abstracts and vital statistics data between April 1, 1994, to March 31, 1999, were used. RESULTS:The incidence of hospitalization f...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2003.175
更新日期：2003-03-01 00:00:00
abstract：:A review was made of the available literature on the sinusoidal heart rate (SHR) pattern. A specific definition of SHR was made in order to elucidate its clinical significance. According to this definition 41 tracings from 23 publications were classified as being either true SHR, equivocal, or a heart rate pattern oth...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/0002-9378(82)90789-x
更新日期：1982-04-15 00:00:00
abstract：:Characteristics of cervical dilation produced by the new osmotic dilator, laminaria, and rigid (metal or plastic) dilators were compared. The osmotic dilator (Lamicel) is an open-porosity polyvinyl alcohol sponge loaded with magnesium sulfate and compressed into a rod. Pressures exerted by the Lamicel and laminaria te...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(83)90997-3
更新日期：1983-07-15 00:00:00
abstract：OBJECTIVE:This study was undertaken to evaluate factors at home and work associated with antenatal morbidity (emergency department visits and hospitalizations) among employed pregnant women. STUDY DESIGN:This prospective study of 213 women included 3 antenatal interviews at about 16, 24, and 30 weeks' gestation with q...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(99)70103-1
更新日期：1999-11-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to assess the feasibility of using infrared spectroscopy to simultaneously predict preterm infection, fetal distress, and fetal lung maturity. STUDY DESIGN:A total of 189 infrared spectra were acquired from amniotic fluid obtained by amniocentesis. The concentrations of glucose ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(99)70275-9
更新日期：1999-03-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to examine the effects of a policy of elective cesarean delivery for suspected fetal macrosomia on the incidence of brachial palsy and on the cesarean delivery rate. STUDY DESIGN:We performed a retrospective assessment of a policy that recommends cesarean delivery for macrosomia (fe...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2000.107382
更新日期：2000-11-01 00:00:00
abstract：OBJECTIVE:Our purpose was to evaluate a vaginal device designed to support the bladder neck in women with urinary stress incontinence. STUDY DESIGN:Thirty-two physically active incontinent women underwent urodynamic evaluation and maintained a bladder diary before enrollment and after 4 weeks of device use. Outcome me...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：10.1016/0002-9378(94)90470-7
更新日期：1994-07-01 00:00:00
abstract：OBJECTIVE:We investigated in a pregnant rabbit model the effects of intravaginal inoculation of type la group B streptococci and antibiotic intervention. STUDY DESIGN:We inoculated 10(4) to 10(6) cfu of type la group B streptococci into the upper vagina hysteroscopically at day 21 to 27 of a 31-day gestation. Initiall...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(96)70153-9
更新日期：1996-08-01 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:Recent randomized trials comparing total laparoscopic hysterectomy (TLH) and vaginal hysterectomy (VH) have produced conflicting results. The role of TLH in women suitable for VH remains uncertain. STUDY DESIGN:This study was a metaanalysis of randomized studies comparing TLH and VH for benign disease. Poole...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,meta分析
doi：10.1016/j.ajog.2010.12.059
更新日期：2011-05-01 00:00:00
abstract：OBJECTIVE:Approximately 50% of patients with ovarian cancer who have normal CA 125 levels at the completion of therapy have persistent disease. In an effort to improve the ability to detect small volume disease, we have evaluated the usefulness of N-acetylglucosamine:beta1,4-galactosyltransferase as a potential biomark...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2002.125888
更新日期：2002-09-01 00:00:00
abstract：OBJECTIVE:The aim of the study was to determine the most cost-effective delivery management of vertex and nonvertex twin pair gestations. STUDY DESIGN:Two hundred sixty-six consecutive twin gestations were followed up prospectively in a special antepartum Twins Clinic directed by the Maternal-Fetal Medicine Division. ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(98)70179-6
更新日期：1998-10-01 00:00:00
abstract：OBJECTIVE:The objectives of the investigation were to study the association between levator hiatus dimensions in late pregnancy and both the length of second stage of labor and also the delivery mode in women delivering their first child. STUDY DESIGN:In this cohort study, 231 nulliparous women were examined with 3- a...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2014.02.021
更新日期：2014-05-01 00:00:00
abstract：BACKGROUND:There are limited data on how maternal age is related to twin pregnancy outcomes. OBJECTIVE:The purpose of this study was to assess the relationship between maternal age and risk for preterm birth, fetal death, and neonatal death in the setting of twin pregnancy. STUDY DESIGN:This population-based study of...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2017.03.002
更新日期：2017-07-01 00:00:00
abstract：:Thirteen women, six of whom were using oral contraceptive agents, between the ages of 23 and 34 years, free from illness, and without a previous clinical history of menstrual abnormality, were studied with chronobiological methods for circadian (about 24 hour) patterns of metal and creatinine excretinine excretion. Ci...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(16)33342-7
更新日期：1976-04-01 00:00:00
abstract：:Ultrasonographic visualization of an enlarged cisterna magna was the initial clue that led to the prenatal diagnosis of trisomy 18 in five patients. Prenatal diagnosis of trisomy 18, a lethal defect, is important for proper patient counseling and management. ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(89)90238-x
更新日期：1989-07-01 00:00:00
