Abstract：
OBJECTIVE:This study was undertaken to document vascular reactivity in both phases of normal menstrual cycles and anovulatory cycles of women receiving oral contraceptives and to compare vascular reactivity of women in the follicular phase of the normal menstrual cycle with that of men of a similar age group. STUDY DESIGN:Forearm blood flow was measured with plethysmography in 15 women with ovulatory cycles during the follicular and luteal phases of the normal cycle, at equivalent times in 14 women receiving oral contraceptives, and in 15 age-matched men. Changes in forearm blood flow, an index of vascular reactivity, were measured during a randomly ordered brachial artery infusion schedule of norepinephrine, sodium nitroprusside, angiotensin II, and Nomega-monomethyl-L -arginine and were analyzed with repeated measures analysis of variance. RESULTS:Forearm blood flow responses were similar in the two phases of the normal cycle. Responses were similar between women with ovulatory cycles and users of oral contraceptives, apart from a significantly greater response to angiotensin II in the oral contraceptive group during the medication phase than during the withdrawal phase (P =.027). Basal forearm blood flow was higher in men than in women (7 +/- 1.6 vs 5 +/- 1.4 mL/100 mL per minute; P =.015), and men demonstrated a significantly greater vasoconstrictor response to norepinephrine (P <.05) than did women. CONCLUSION:Vascular reactivity is similar in the two phases of the normal menstrual cycle, but women who use oral contraceptives have an exaggerated response to angiotensin II during the medication phase. Men demonstrate greater vascular reactivity to norepinephrine than do women, perhaps because of the lack of estrogen-mediated protective effects and increased adrenergic activity.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Bowyer L,Brown MA,Jones Mdoi
10.1067/mob.2001.114502subject
Has Abstractpub_date
2001-07-01 00:00:00pages
88-96issue
1eissn
0002-9378issn
1097-6868pii
S0002-9378(01)70243-8journal_volume
185pub_type
杂志文章abstract：OBJECTIVE:Although a few studies have evaluated the effect of meconium on the lecithin/sphingomyelin ratio for testing of fetal lung maturity, to date these studies have assessed only the lecithin-sphingomyelin ratio of amniotic fluid contaminated with meconium. The purpose of this study was (1) to determine whether me...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(98)70038-9
更新日期：1998-12-01 00:00:00
abstract：OBJECTIVE:Elective induction of labor has been discouraged over concerns regarding increased complications. We evaluated the mode of delivery and maternal and neonatal morbidities in low-risk patients whose labor was electively induced or expectantly managed at term. STUDY DESIGN:This was a retrospective cross-section...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2014.03.016
更新日期：2014-09-01 00:00:00
abstract：OBJECTIVE:The objective of this study was to investigate the occurrence of in utero defecation as a normal function in the human fetus. STUDY DESIGN:The anuses of 240 fetuses were studied sonographically between weeks 15 and 41 of gestation. Fetal defecation was defined as the expulsion of rectal contents through the ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2003.107
更新日期：2003-01-01 00:00:00
abstract：:At the Department of Obstetrics and Gynecology of Tohoku University, radical hysterectomy with pelvic lymphadenectomy had been performed on patients with microinvasive carcinoma of the uterine cervix before 1966. Investigation of lymph nodes of 90 patients treated in this manner has shown no lymph node metastasis of t...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(16)32996-9
更新日期：1979-11-01 00:00:00
abstract：:17-beta-Estradiol dehydrogenase is required for the enzymatic interconversion of estradiol and its weaker related sex steroid, estrone. We isolated and sequenced a complementary deoxyribonucleic acid clone for 17 beta-estradiol dehydrogenase from the BeWo choriocarcinoma cell line. Comparison of the BeWo complementary...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(90)90783-4
更新日期：1990-12-01 00:00:00
abstract：OBJECTIVES:It has recently been suggested that oxygen free radicals are involved in the high incidence of fetal dysmorphogenesis that is associated with diabetic pregnancies. The purpose of the current investigation was to study the effect of copper zinc superoxide dismutase, a free radical scavenging enzyme, on the pr...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(95)91323-8
更新日期：1995-10-01 00:00:00
abstract：OBJECTIVE:Our purpose was to improve the accuracy of prenatal prognostication by directly correlating obstetric ultrasonographic measurements with neonatal survival. STUDY DESIGN:We studied 130 singleton live-born infants with birth weights between 500 and 1000 gm and who underwent complete ultrasonographic examinatio...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(93)90606-j
更新日期：1993-09-01 00:00:00
abstract：:A new method is herein described that uses the most recent computer science techniques to obtain digitalized colposcopic images that may be useful not only as documents, but also as research tools. Because computer graphics is a recent and ever-growing discipline, our method, too, might undergo considerable improvemen...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(89)80021-3
更新日期：1989-03-01 00:00:00
abstract：:Surgical abortion in the first trimester comprises the majority of voluntary pregnancy interruptions performed in the United States. The majority of these procedures are done in outpatient settings with the patient under local anesthesia. Appropriate volume of and deep injection of local anesthetic can reduce pain ass...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1067/s0002-9378(03)00107-8
更新日期：2003-08-01 00:00:00
abstract：:Twenty-two hirsute women underwent percutaneous adrenal and ovarian vein catheterization to differentiate and localize excessive hormonal output. All studies were done under fluoroscopic control; catheter placement was verified by venography, and blood samples were withdrawn for hormonal analysis. The right ovarian ve...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(76)90504-4
更新日期：1976-08-01 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：OBJECTIVE:The purpose of this study was to investigate the significance of preterm acidosis and its risk factors. STUDY DESIGN:From a cohort of 786 consecutive singleton neonates who were born after spontaneous or iatrogenic preterm delivery at 24.0-33.6 weeks of gestation from January 1993 to December 2005 with an ev...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2007.07.009
更新日期：2007-09-01 00:00:00
abstract：:Clostridium sordellii is a common soil and enteric bacterium that is infrequently recovered from the vagina. We describe three women in which C. sordellii caused puerperal infection and a distinctive and lethal toxic shock-like syndrome. Patients were less than 1 week post partum and each had a single, limited focus o...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(89)90768-0
更新日期：1989-10-01 00:00:00
abstract：OBJECTIVES:The objectives of this study were to investigate differences in diameter and vasoconstriction of premyometrial versus uteroplacental radial arteries and to evaluate the contribution of nitric oxide (NO) to myogenic tone as a function of vessel location. STUDY DESIGN:Radial arteries supplying either the myom...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/s0002-9378(03)00623-9
更新日期：2003-11-01 00:00:00
abstract：BACKGROUND:While there is an increasing trend of ovarian conservation at the time of surgical treatment for young women with stage I cervical cancer, the risk for subsequent ovarian cancer after ovarian conservation has not been well studied. OBJECTIVE:We sought to examine the incidence of and risk factors for metachr...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2017.06.019
更新日期：2017-11-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to assess the effectiveness of psychologic support against preterm delivery in pregnant women with symptoms of preterm labor. STUDY DESIGN:The study, which involved two cohorts of women identified during two successive periods in the same maternity ward, included 309 women in the ex...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(97)70299-0
更新日期：1997-10-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to test the hypothesis that severe placental insufficiency and a rise in fetal systemic venous pressure are associated with fetal myocardial cell damage, which in turn leads to increased neonatal troponin T levels. STUDY DESIGN:Sixty-six neonates born after uncomplicated pregnancy a...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2000.106753
更新日期：2000-09-01 00:00:00
abstract：:In a large randomized, controlled study of fetal heart rate monitoring with either continuous electronic fetal heart monitoring or auscultation at specified intervals, only one pattern of deviation in the fetal heart rate correlated significantly with neonatal neurologic examinations at 0 to 48 hours and 72 hours to 1...
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：10.1016/0002-9378(91)90700-2
更新日期：1991-05-01 00:00:00
abstract：:Skillful laser ablation can remove any volume of human papillomavirus-associated vulvar disease but cannot prevent reactivation of the surrounding latent viral reservoir during postoperative healing. Conversely, interferon and 5-fluorouracil are relatively ineffective as primary therapies in clearing bulky lesions. In...
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：10.1016/0002-9378(92)91339-c
更新日期：1992-03-01 00:00:00
abstract：OBJECTIVE:This study was undertaken to evaluate the occurrence and management of mesh erosions in patients undergoing abdominal sacrocolpopexy. STUDY DESIGN:A retrospective chart review of the abdominal sacrocolpopexy procedure (n = 92) between 1997 and 2003 was performed. Patients with mesh erosion were identified. I...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2005.02.062
更新日期：2005-06-01 00:00:00
abstract：:An antiserum to 13,14-dihydro-15-keto-prostaglandin F2alpha (PGF2alphaM) was prepared and a radioimmunoassay evaluated in various reproductive states. PGF2alphaM plasma concentration was 63.6 +/- 10.3 pg/ml (mean +/- SEM) in cycling women. The concentration fluctuated throughout the menstrual cycle and pregnancy, but ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(16)33031-9
更新日期：1979-06-01 00:00:00
abstract：:The results of preoperative computed tomography and operative findings were assessed retrospectively in 52 patients with cervical, uterine, and ovarian neoplasms. Overall sensitivity and specificity for all disease states was 57% and 79%, respectively. Overall diagnostic accuracy was 69%. The use of computed tomograph...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(86)90325-x
更新日期：1986-11-01 00:00:00
abstract：:The kinetics of maternal-fetal interferon and a chemical interferon inducer were studied in Swiss-Webster white mice at 8, 15, and 19 days of gestation. Crude interferon was administered by maternal tail vein injection to one group. There was no transfer of interferon to the fetus despite high maternal levels. A chemi...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(85)80189-7
更新日期：1985-05-01 00:00:00
abstract：:Charts from 482 singleton pregnancies undergoing cerclage placement in patients over a 6-year period were reviewed. Cervical dilatation at time of surgery, number of previous spontaneous losses, and gestational age at placement were key determinants of outcome. The most frequent complication, premature rupture of the ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(91)90283-w
更新日期：1991-09-01 00:00:00
abstract：:Perimenopause represents a transition period lasting about 5 years before the permanent cessation of spontaneous menses. During this transition, the emphasis of clinical care changes. Although women still need effective contraception during perimenopause, issues including loss of bone mineral density, menstrual cycle ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1067/mob.2001.116525
更新日期：2001-08-01 00:00:00
abstract：:The place of symphysiotomy in the management of cephalopelvic disproportion is discussed on the basis of the existing literature, reviewing maternal mortality and morbidity after symphysiotomy and the vaginal delivery rate in a subsequent pregnancy after a previous symphysiotomy. These are compared with the outcome of...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(11)90653-x
更新日期：1990-07-01 00:00:00
abstract：:Chlamydia trachomatis is becoming increasingly known for its ability to cause severe injury to the female genital tract. Little investigation has been done in its role in diseases of Bartholin's glands. We present what we believe to be the first case report of an abscess of a Bartholin's gland in which Chlamydia trach...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1988-03-01 00:00:00
abstract：:A patient seen for infertility developed severe endometriosis within 2 years of neosalpingostomy for bilateral fallopian tube obstruction. A retrospective review of infertility surgeries revealed none of 20 patients with obstructed tubes to have endometriosis, compared with 66 of 125 (52.8%) with at least one patent f...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(94)70160-1
更新日期：1994-05-01 00:00:00
abstract：OBJECTIVE:Preeclampsia affects 6% to 8% of pregnancies. There are few data regarding hypertensive disorders that are diagnosed in the postpartum period. Our purpose was to determine the demographics, outcomes, and treatment of this complication. STUDY DESIGN:This was a multicenter retrospective study of women who had ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,多中心研究
doi：10.1016/j.ajog.2004.02.037
更新日期：2004-05-01 00:00:00
abstract：OBJECTIVE:Our objective was to study the effect of estrogen administration and moderate hypertension on left ventricular size, pump function, and contractility in chronically instrumented ewes. STUDY DESIGN:Ewes were either given 0.06 mg/kg 17beta-estradiol intramuscularly (n = 8) or were made hypertensive (n = 6) by ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(98)70053-5
更新日期：1998-09-01 00:00:00
