Abstract:
:Uncontrolled lipid peroxidation may play an important role in the pathophysiology of preeclampsia by causing vascular endothelial cell dysfunction. Sera contain antioxidant mechanisms that serve to control lipid peroxidation. We tested the hypothesis that the sera antioxidant protective mechanisms are diminished in women with preeclampsia. Blood samples were collected within 24 hours of delivery (pre-delivery) and by 24 hours postpartum (post-delivery) from women with preeclampsia (N = 8) and from matched controls with uncomplicated pregnancies (N = 8). Antioxidant activity was determined by the ability of sera to inhibit autoxidation of a standardized brain homogenate. Lipid peroxidation of both brain homogenate and sera was analyzed by high-pressure liquid chromatography using the amount of malondialdehyde present as an indicator of peroxidation. Pre-delivery sera from women with preeclamptic pregnancies had one-half the antioxidant activity of sera from women with uncomplicated pregnancies (42 versus 90%; P less than .01). Malondialdehyde values alone were not significantly different between the groups in either the pre-delivery or post-delivery samples. When using a ratio to evaluate the relative balance between lipid peroxidation and antioxidant activity, pre-delivery samples from women with preeclampsia had over a twofold increase in this ratio compared with samples from uncomplicated pregnancies. In conclusion, in contrast to women with uncomplicated pregnancies, women with preeclampsia have antioxidant activity that is markedly reduced by late gestation. For women with preeclampsia, this may result in a greater potential for endothelial oxidative damage.
journal_name
Obstet Gynecoljournal_title
Obstetrics and gynecologyauthors
Davidge ST,Hubel CA,Brayden RD,Capeless EC,McLaughlin MKsubject
Has Abstractpub_date
1992-06-01 00:00:00pages
897-901issue
6eissn
0029-7844issn
1873-233Xjournal_volume
79pub_type
杂志文章abstract::The intrapartum management of pregnancy complicated by fetal hydrocephalus with macrocephaly often confronts the physician with a complex array of moral obligations to both mother and fetus that may sometimes come into direct conflict. The authors analyze the component beneficence-based and autonomy-based obligations ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1986-11-01 00:00:00
abstract::The high concentrations of prolactin (hPRL) in human amniotic fluid appear to be derived principally from maternal decidua. The present study evaluated both the biologic and immunologic activity of amniotic fluid hPRL obtained from normal and selected complicated pregnancies. Biologic and immunologic activities of amn...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1985-01-01 00:00:00
abstract::Pelvic endometriosis associated with massive ascites is an unusual occurrence. Only 12 cases have been reported since 1954 when Brews first described this entity. The authors present two cases recently encountered at Saga Medical School Hospital. Clinical courses and operative findings are described and other cases fr...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1985-09-01 00:00:00
abstract::A new technique is presented for funipuncture under ultrasound guidance using a biopsy guide and a 20/25-gauge needle combination. The 20-gauge needle was used for uterine entry and the 25-gauge needle for the actual cord puncture. The method was used for sampling fetal blood in 262 pregnancies with 264 fetuses (two s...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1989-03-01 00:00:00
abstract:BACKGROUND:Advanced abdominal pregnancy is rare, and one that occurs after uterine rupture with delivery of a viable fetus is exceptional. CASE:A multiparous patient was admitted at 29 weeks of gestation for conservative management of placenta previa. She complained of intermittent abdominal pain, but repeated assessm...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000279451.51446.c1
更新日期:2008-02-01 00:00:00
abstract::Primary dysmenorrhea is defined as pain during the menstrual cycle in the absence of an identifiable cause. It is one of the most common causes of pelvic pain in women. Dysmenorrhea can negatively affect a woman's quality of life and interfere with daily activities. The pathophysiology of primary dysmenorrhea is likel...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,评审
doi:10.1097/AOG.0000000000004096
更新日期:2020-11-01 00:00:00
abstract::To evaluate the usefulness of autoantibody detection as a nonoperative method of diagnosing endometriosis, we tested 221 sera from 215 patients from the infertility, gynecology, and gynecologic oncology services by an indirect immunofluorescence assay using monolayer cultures of an endometrial carcinoma cell line. The...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1991-06-01 00:00:00
abstract::The inability to make a definitive diagnosis in the fetus with a sonographically identified abnormality often results in parental and physician uncertainty. An antenatal chromosome evaluation could resolve this uncertainty. Forty-one fetuses with an abnormal ultrasound examination were tested for karyotypic abnormalit...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1987-01-01 00:00:00
abstract:OBJECTIVE:To evaluate whether current Joint Commission (JC) exclusion criteria for measure PC-01, "Elective Delivery" before 39 weeks of gestation, accurately identify valid, codeable indications for planned early-term delivery. METHODS:We performed a review and critical analysis of all cases recorded as noncompliant ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000000059
更新日期:2014-01-01 00:00:00
abstract::A case-control study was performed to study risk factors for postpartum hemorrhage. Cases of hemorrhage were defined by a hematocrit decrease of 10 points or more between admission and post-delivery or by the need for red-cell transfusion. Patients with antenatal bleeding were excluded. Among 9598 vaginal deliveries, ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1991-01-01 00:00:00
abstract:OBJECTIVE:To assess the rate of wound complications and evaluate the effectiveness of antibiotic prophylaxis in vulvar wide local excision procedures. METHODS:We performed a single-institution, retrospective cohort study of women undergoing vulvar surgery for premalignant lesions between January 2007 and January 2017....
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000003185
更新日期:2019-04-01 00:00:00
abstract:BACKGROUND:Recent reports have advocated conservative management rather than hysterectomy for placenta increta and its related conditions, placenta accreta and percreta. We report an unusual case of placenta increta in which initial conservative therapy for a presumed placenta accreta failed and hysterectomy was perfor...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0029-7844(96)00121-4
更新日期:1996-10-01 00:00:00
abstract::One hundred women were admitted to the hospital between 7 and 18 weeks' gestation because of vaginal bleeding and threatened abortion. Serum concentration of estradiol-17 beta was determined by radioimmunoassay. Ultrasound examination using a gray-scale scanner was performed as well. The values for prediction of abort...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/00006250-198003000-00011
更新日期:1980-03-01 00:00:00
abstract::The relation between clinically obvious polyhydramnios and poor perinatal outcome has been described. Much less is known about mild, unexplained polyhydramnios, which usually is initially suggested by sonographic examination late in gestation. The purpose of the present investigation was to relate mild idiopathic poly...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/00006250-199203000-00012
更新日期:1992-03-01 00:00:00
abstract:OBJECTIVE:To explore determinants of sexually transmitted infection screening of asymptomatic women and sexually transmitted infection testing of women with genitourinary symptoms, to investigate the effect of specific genitourinary symptoms on sexually transmitted infection testing, and to examine trends in screening....
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000151129.47746.be
更新日期:2005-02-01 00:00:00
abstract:BACKGROUND:We report a rare case of a cervical adenosquamous carcinoma, initially diagnosed during delivery, with subsequent implantation in the episiotomy scar 5 weeks postpartum. CASE:A 35-year-old woman with cervical adenosquamous carcinoma diagnosed during delivery was treated with radical abdominal hysterectomy w...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000275260.45730.ea
更新日期:2007-08-01 00:00:00
abstract::The effect of noncreatinine chromogens on the endogenous creatinine clearance (ECC) during pregnancy was investigated. It was found that these chromogens measured as plasma "creatinine" cause a significant reduction in the ECC value. This fact should be considered when the ECC value is used to evaluate renal function ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1976-08-01 00:00:00
abstract:BACKGROUND:A rare complication of hysterectomy is the formation of a high-flow fistula between the uterine artery and uterine vein. Historically, these lesions were treated surgically. CASE:Two women with histories including hysterectomy presented with symptoms and physical examination signs suggestive of uterine arte...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0b013e3181834660
更新日期:2009-02-01 00:00:00
abstract:BACKGROUND:Women with a history of pregnancy loss in the second trimester are often diagnosed with cervical insufficiency and are treated with cervical cerclage. We present an unusual complication of this procedure that mimicked preterm rupture of membranes. CASE:A 38-year-old woman with a history of cervical conizati...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000247291.00155.88
更新日期:2007-02-01 00:00:00
abstract::The preoperative diagnosis of ectopic ovarian tissue has been reported only once in the literature. In the present case, differential ovarian and adrenal testing was used to diagnose and aberrant ovarian source of persistently elevated plasma estrogen in a patient who had undergone bilateral oophorectomy and adrenalec...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1976-02-01 00:00:00
abstract::This report, the first ultrastructural study of endometriotic implants, compares the ectopic endometrium in 14 patients with that found in the uterus. The ultrastructural features of most of the glands of the ectopic endometrium resemble those of the corresponding glands lining the uterus. Specific ultrastructural cha...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1981-10-01 00:00:00
abstract:OBJECTIVE:To determine if corticosteroid administration causes increased contractions or labor in high-order multiple gestations. METHODS:Medical records of all triplet and quadruplet pregnancies cared for by Phoenix Perinatal Associates from August 1988 to January 1992 were reviewed retrospectively. Twenty-one women ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0029-7844(94)00355-H
更新日期:1995-02-01 00:00:00
abstract:OBJECTIVE:Elective repeat cesarean delivery at 37 or 38 weeks compared with 39 completed weeks of gestation is associated with adverse neonatal outcomes. We assessed whether delivery before 39 weeks is justifiable on the basis of decreased adverse maternal outcomes. METHODS:We conducted a cohort study of women with li...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0b013e3182078115
更新日期:2011-02-01 00:00:00
abstract::Although the absence of pituitary response to the luteinizing hormone releasing hormone (LHRH) test has been considered proof of a lesion primarily localized at the pituitary level, the possibility exists that an absent pituitary response may represent only the effect of a chronic deficiency of hypothalamic secretion....
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1975-05-01 00:00:00
abstract:OBJECTIVE:To review facility-based maternal deaths at a tertiary-level center in Johannesburg, South Africa, during a 5-year period (2003 to 2007) and to investigate the proportion of deaths attributable to human immunodeficiency virus (HIV), the etiology of deaths, and the effects of antiretroviral treatment introduce...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0b013e3181af33e6
更新日期:2009-08-01 00:00:00
abstract:OBJECTIVE:To evaluate an interferon (IFN)-gamma release assay in diagnosing latent tuberculosis infection in pregnant adolescents and women at risk for exposure to Mycobacterium tuberculosis. METHODS:This was a prospective study of women and adolescents receiving health care at Bellevue Hospital Outpatient Clinics in ...
journal_title:Obstetrics and gynecology
pub_type: 临床试验,杂志文章
doi:10.1097/AOG.0b013e3182546aff
更新日期:2012-06-01 00:00:00
abstract::Previous reports suggest an association between maternal serum complement component (C3 and C4) levels and perinatal outcome. Eighteen women with systemic lupus erythematosus (21 pregnancies) were prospectively studied. C3 and C4 levels were measured monthly unless more frequent data were needed for acute medical mana...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1984-06-01 00:00:00
abstract::We evaluated the recovery of fertility and the relief of pain symptoms in a long-term follow-up of 42 women undergoing repetitive conservative surgery for recurrent endometriosis. The mean age of the patients was 31.1 +/- 4.3 years. At the time of their second operation the disease was stage IV in 14 women, stage III ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1991-03-01 00:00:00
abstract::A 64-year-old woman with a 45,X karyotype and Turner's syndrome and recent onset of right lower quadrant pain was found to have a mucinous cystadenoma with focal areas of borderline malignancy and a typical Brenner tumor in the right adnexa. Ovarian tumors in patients with a 45,X karyotype and Turner's syndrome are ex...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1979-11-01 00:00:00
abstract:OBJECTIVE:To estimate whether the loop electrosurgical excision procedure (LEEP) is associated with an adverse effect on the outcome of subsequent pregnancies. METHODS:A retrospective cohort study was performed. The study group comprised women who had a LEEP in Halifax County between 1992 and 1999 and then had a subse...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000151991.09124.bb
更新日期:2005-02-01 00:00:00