Abstract:
OBJECTIVE:To investigate the interaction of exogenous adenosine 5'-triphosphate (ATP), a P2 receptor agonist, with prostaglandin F(2alpha) (PGF(2alpha)) on pregnant women in labor as well as on isolated human pregnant uterus preparations. METHODS:For an in vitro study, myometrial samples were obtained from 27 women undergoing elective cesarean delivery at term. Concentration-response relationships for ATP (10(-8) -3 x 10(-4) mol/L), PGF(2alpha) (10(-9) -10(-5) mol/L), and their combination were obtained by using routine pharmacological organ bath technique. An in vivo study was performed with 34 pregnant women with dysfunctional abnormalities of the active stage of labor who were randomly allocated into 2 study groups. The women in the control group (18 patients) received intravenous prostaglandin F(2alpha) at an initial rate of 7.5 mug/min, whereas the women in the ATP group (16 patients) received prostaglandin F(2alpha) concomitantly with ATP (0.45 nmol/min, intravenously). RESULTS:Adenosine 5'-triphosphate at concentrations of 10(-6) -3 x 10(-4) mol/L and PGF(2alpha) at concentrations of 10(-8) -10(-5) mol/L caused concentration-dependent contractions of isolated smooth muscle preparations of the human pregnant uterus. At concentrations of 10(-6) mol/L and below, ATP had no effects on mechanical activity of the isolated uterus, but at concentrations of 10(-7) mol/L and 10(-6) mol/L, it significantly potentiated the contractile responses of the uterus induced by PGF(2alpha) (P < .05, 2-way analysis of variance). Patients receiving intravenous infusion of ATP as a supplement to PGF(2alpha) treatment, compared with those without ATP, had a significantly shorter interval from the start of the treatment to full cervical dilatation (3.31 +/- 1.49 hours and 4.67 +/- 1.11 hours in ATP and control groups, respectively; P = .014, Wilcoxon Mann-Whitney test). The total dose of prostaglandin received was significantly lower in the ATP group than that of controls (1,489.8 +/- 699.9 mug and 3,394.2 +/- 1,951.9 mug, respectively; P = .003, Wilcoxon Mann-Whitney test). No side effects of ATP treatment were observed during or after infusion. CONCLUSION:Adenosine 5'-triphosphate potentiates effects of PGF(2alpha) on pregnant human uterus in vitro and in vivo and thus could be a useful supplemental drug to increase uterine contractility at labor.
journal_name
Obstet Gynecoljournal_title
Obstetrics and gynecologyauthors
Ziganshin AU,Zefirova JT,Zefirova TP,Ziganshina LE,Hoyle CH,Burnstock Gdoi
10.1097/01.AOG.0000161314.50808.ddsubject
Has Abstractpub_date
2005-06-01 00:00:00pages
1429-36issue
6eissn
0029-7844issn
1873-233Xpii
105/6/1429journal_volume
105pub_type
临床试验,杂志文章,随机对照试验abstract::This study reviewed 20 cases of extensive squamous carcinoma in situ of the vulva and posterior perineum. Two patients had concurrent, overt invasive carcinoma of the vulva, 14 patients had concurrent extensive vulvar carcinoma in situ, three patients had previous skinning vulvectomy for carcinoma in situ, and one pat...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1984-09-01 00:00:00
abstract::Ten cases of malignant tumors arising in foci of gonadal and extragonadal endometriosis are reported and added to 195 previously reported cases from the English literature. The ovary was the primary site in 165 (78.7%) of the cases, whereas extragonadal sites represented 44 (21.3%). Endometrioid adenocarcinomas accoun...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,评审
doi:
更新日期:1990-06-01 00:00:00
abstract:BACKGROUND:Uterine malignant mixed mesodermal tumor is a rare variant of uterine cancer. Data suggest that tamoxifen is involved in the pathogenesis. We report a case of a women in whom a malignant mixed mesodermal tumor was diagnosed while she was taking raloxifene, which is also a selective estrogen receptor modulato...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000160480.55365.a8
更新日期:2005-05-01 00:00:00
abstract::Although cryosurgery is regularly used for treatment of cervical intraepithelial neoplasia (CIN), there are few data concerning freeze technique and attendant extension of the cryolesion. This study evaluated how to create cryolesions extensive enough to eradicate the CIN lesion completely. The way the extension of th...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1990-02-01 00:00:00
abstract:OBJECTIVE:To compare the efficacy and safety of titrated oral misoprostol and vaginal misoprostol for labor induction. METHODS:Women between 34 and 42 weeks of gestation with an unfavorable cervix (Bishop score less than or equal to 6) and an indication for labor induction were randomLy assigned to receive titrated or...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,随机对照试验
doi:10.1097/01.AOG.0000297313.68644.71
更新日期:2008-01-01 00:00:00
abstract:OBJECTIVE:To estimate the diagnostic accuracy of electronic fetal heart rate abnormalities in the identification of neonates with encephalopathy treated with whole-body hypothermia. METHODS:Between January 1, 2007, and July 1, 2013, there were 39 neonates born at two hospitals within our system treated with whole-body...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000000424
更新日期:2014-09-01 00:00:00
abstract::An unusual case is presented of advanced dysgerminoma in a patient with Swyer syndrome, 46,XY pure gonadal dysgenesis. Unexpected regional invasion necessitated bowel resection, total abdominal hysterectomy, and bilateral salpingogonadectomy for a complete en bloc excision of the primary tumor mass and the dysgenetic ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1992-09-01 00:00:00
abstract::This study was undertaken to compare the outcome of pregnancy in patients treated for some type of infertility problem to that of a control group of patients from the same obstetric unit and also to the reported literature. Reported are the primary outcomes of 122 pregnancies in 104 patients treated for infertility an...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1977-02-01 00:00:00
abstract::Major advances have been made in understanding the epidemiology and biology of the hepatitis B virus. Two particular developments--hepatitis B immune globulin and a new hepatitis B virus vaccine--are of special interest to obstetricians, gynecologists, and others who provide health care to women. The appropriate use o...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1983-07-01 00:00:00
abstract::The poor health status of Sioux Indians residing on reservations in South Dakota has been recognized for many years. The present report documents evidence of a high incidence of socioeconomic health-related disorders and pregnancy-related complications by comparing 342 pregnant white women and 405 pregnant Sioux India...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1984-10-01 00:00:00
abstract:OBJECTIVE:To compare a "no touch" approach to diagnostic hysteroscopy without anesthesia with traditional diagnostic hysteroscopy after intracervical injection of mepivacaine hydrochloride 3%. METHODS:A total of 130 women undergoing diagnostic hysteroscopy were included in the study and were randomized, using a comput...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,随机对照试验
doi:10.1097/01.AOG.0000227750.93984.06
更新日期:2006-08-01 00:00:00
abstract:OBJECTIVE:To compare the surgical morbidity, postoperative course, and hospital charges of Burch colposuspension performed in conjunction with abdominal versus vaginal hysterectomy. METHODS:Power analysis indicated that 35 women would be needed in each group to detect a 20% difference in hospital charges between group...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/S0029-7844(97)00178-6
更新日期:1997-07-01 00:00:00
abstract:OBJECTIVE:To evaluate whether prophylactic dronabinol, a synthetic tetrahydrocannabinol, reduces pain during medical abortion. METHODS:We conducted a randomized, double-blind, placebo-controlled trial of women undergoing medical abortion with mifepristone and misoprostol up through 70 days of gestation. All participan...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,随机对照试验
doi:10.1097/AOG.0000000000003850
更新日期:2020-06-01 00:00:00
abstract:BACKGROUND:The management of an abnormally invaded placenta presents a challenging obstetric problem. Recent reports have suggested that a conservative approach to the treatment of this condition is appropriate in selected cases. We present the courses of two women with suspected placenta percreta who were managed cons...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0b013e3181794727
更新日期:2008-08-01 00:00:00
abstract::A prospective randomized study was undertaken in 100 patients undergoing cesarean section to evaluate the efficacy of cefotaxime when given as a single-dose versus the more traditional triple-dose regimen for prophylaxis. Analysis of the results demonstrated no significant differences in febrile morbidity (14 versus 2...
journal_title:Obstetrics and gynecology
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1985-02-01 00:00:00
abstract:OBJECTIVE:To assess the ectopic pregnancy risk among women who conceived with assisted reproductive technology (ART) procedures. METHODS:The ectopic rate for ART pregnancies was calculated from population-based data of pregnancies conceived with ART in U.S. clinics in 1999-2001. Variation in ectopic risk by patient an...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000196503.78126.62
更新日期:2006-03-01 00:00:00
abstract:OBJECTIVE:To examine the histology of the vaginal wall in women with an enterocele confirmed by physical examination, cystoproctography, and intraoperative exploration. METHODS:Thirteen women with posthysterectomy apical and posterior wall prolapse were evaluated with a detailed physical examination, cystoproctography...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0029-7844(01)01524-1
更新日期:2001-10-01 00:00:00
abstract:OBJECTIVE:To evaluate dynamic fluoroscopy of the pelvic floor for the study of women with pelvic floor disorders. METHODS:In a prospective, observational study in a tertiary care referral center, 30 women with prolapse beyond the introitus underwent comprehensive fluoroscopic imaging of the pelvic floor. RESULTS:Dyna...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1993-11-01 00:00:00
abstract:OBJECTIVE:To describe the outcomes of intended home birth in the practices of certified nurse-midwives. METHODS:Twenty-nine US nurse-midwifery practices were recruited for the study in 1994. Women presenting for intended home birth in these practices were enrolled in the study from late 1994 to late 1995. Outcomes for...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,评审
doi:10.1016/s0029-7844(98)00182-3
更新日期:1998-09-01 00:00:00
abstract::The ACOG has recommended that the initial visit to an obstetrician-gynecologist for health guidance, screening, and provision of preventive services should take place around age 13-15. At this visit, clinicians can provide guidance to young girls and their parents on adolescent physical development based on data that ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,评审
doi:10.1016/s0029-7844(02)01660-5
更新日期:2002-04-01 00:00:00
abstract:OBJECTIVE:To examine the current patterns of care for women at high risk for delivery-related morbidity to inform discussions about the feasibility of this regionalized approach. METHODS:We performed a cross-sectional study and linked 2014 American Hospital Association survey and State Inpatient Database data from sev...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000003397
更新日期:2019-09-01 00:00:00
abstract::Because a close relationship between estrogen deficiency and osteoporosis has been proven, it is possible that lifelong estrogen deficiency might be the cause of osteopenia in Turner syndrome. This study was done to characterize the effect of estrogen therapy on bone mineralization in girls with Turner syndrome. Radia...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1992-05-01 00:00:00
abstract:OBJECTIVE:To evaluate absorption of estradiol (E2) and compare two low doses of 17 beta-E2 (25 microgram and 10 microgram) in postmenopausal women with atrophic vaginitis. METHODS:In a double-masked, randomized, parallel-group study, 58 postmenopausal women were treated with 25 microgram or 10 microgram of 17 beta-E2 ...
journal_title:Obstetrics and gynecology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0029-7844(01)01385-0
更新日期:2002-04-01 00:00:00
abstract:OBJECTIVE:To evaluate the effectiveness and safety of the vaginal application of misoprostol for induction of labor at term, with the interval duration from labor induction to vaginal birth as the primary outcome measure. METHODS:Two hundred twenty-two women with indications for induction of labor at term were randomi...
journal_title:Obstetrics and gynecology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/0029-7844(96)00220-7
更新日期:1996-10-01 00:00:00
abstract:OBJECTIVE:To determine whether using a treatment strategy minimizing lymph node sampling and radiation therapy compromised outcome in patients with early endometrial carcinoma. METHODS:One hundred three consecutive patients with International Federation of Gynecology and Obstetrics surgical stage I, II, or III endomet...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1993-08-01 00:00:00
abstract::Despite the use of prophylactic antibiotics, endometritis occurs in 1-31% of patients after cesarean delivery. We sought to identify predictors of prophylactic antibiotic failure. In a retrospective review of 1800 cesarean deliveries, 766 patients had either ampicillin or cefazolin prophylaxis; 240 (31.3%) developed e...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1992-07-01 00:00:00
abstract:BACKGROUND:Pregnancy after hysterectomy is rare. Because this clinical phenomenon is so uncommon, the diagnosis is not always considered in the evaluation of pain in a reproductive-aged woman after hysterectomy. Delay in diagnosis can result in potentially catastrophic intra-abdominal bleeding. CASE:A 31-year-old mult...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000243774.14606.64
更新日期:2007-02-01 00:00:00
abstract::Prenatal lead exposure has known adverse effects on maternal health and infant outcomes across a wide range of maternal blood lead levels. Adverse effects of lead exposure are being identified at lower levels of exposure than previously recognized in both children and adults. In 2010, the Centers for Disease Control a...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0b013e31826804e8
更新日期:2012-08-01 00:00:00
abstract::This investigation has reexamined the measurement of the femur length and the use of this measurement as a growth and dating parameter. Straight-line measurements of shaft length were found to be smaller than measurements made along the bone curvature. However, the maximum difference did not exceed 2 mm. Thus, because...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1985-07-01 00:00:00
abstract::Two cases of Listeria monocytogenes chorioamnionitis are presented in which transabdominal amniocentesis was used to confirm the diagnosis and to obtain reliable intrauterine culture material free from lower genital tract contamination. The mechanisms of infection with Listeria monocytogenes in the pregnant patient ar...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/00006250-198003001-00002
更新日期:1980-03-01 00:00:00