Abstract：
:The chronic and relatively acute changes in blood volume that occur during pregnancy and post partum may be associated with alterations in the content of atrial natriuretic factor in the atria. We measured the concentration of atrial natriuretic factor in the right and left atria of virgin, pregnant, and postpartum Sprague-Dawley rats by radioimmunoassay as well as the concentration of atrial natriuretic factor in the atria and plasma of term pregnant rats on a high-salt diet. Neither right nor left atrial concentrations of atrial natriuretic factor were elevated during pregnancy in animals on a normal diet, but both were increased during the first 2 days after delivery. Term pregnant rats on a high-salt diet showed a small increase in atrial natriuretic factor levels in the left atria only, without any change in plasma atrial natriuretic factor levels. We conclude that relatively acute changes in fluid and electrolyte balance are more likely than chronic ones to be associated with alterations in atrial natriuretic factor concentrations in the atria.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Castro LC,Arora CP,Davis JL,Hobel CJ,Parvez Hdoi
10.1016/0002-9378(89)90937-xsubject
Has Abstractpub_date
1989-12-01 00:00:00pages
1620-3issue
6 Pt 1eissn
0002-9378issn
1097-6868pii
0002-9378(89)90937-Xjournal_volume
161pub_type
杂志文章abstract：:To assess the effect of endogenous human atrial natriuretic peptide on the vascular system in preeclampsia, the circadian variations of plasma human atrial natriuretic peptide, cyclic guanosine 3'5'-monophosphate, cyclic adenosine 3'5'-monophosphate, and blood pressure were measured. In severe preeclamptic women, the ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(89)90110-5
更新日期：1989-01-01 00:00:00
abstract：OBJECTIVE:This study determined whether attenuated preovulatory luteinizing hormone surges in aging rats are associated with a decrease in pituitary luteinizing hormone content or luteinizing hormone beta-messenger ribonucleic acid expression on proestrus. STUDY DESIGN:Blood samples were taken every 90 minutes from 1:...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(11)91405-7
更新日期：1992-08-01 00:00:00
abstract：:A clinical study was designed to test whether sustained administration of progesterone to nursing mothers could prolong lactation and delay the postpartum recovery of fertility. The hormone was administered by subdermal implantation of six pellets that each contained 100 mg of progesterone. This treatment was administ...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：
更新日期：1982-09-15 00:00:00
abstract：OBJECTIVE:Our purpose was to review our results of multimodality treatment of lymph node metastasis in endometrial cancer (stage IIIC). STUDY DESIGN:All patients underwent surgical staging for endometrial cancer with complete pelvic and aortic lymphadenectomy. All macroscopic nodal metastases were resected. Patients w...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2001.115225
更新日期：2001-05-01 00:00:00
abstract：:Concentrations of immunoglobulins (Ig)A1, and IgA2, IgD, IgE, IgG, and IgM have been determined in cord blood, amniotic fluid, and maternal serum in a group of patients with a history of prematurely ruptured membranes (PRM) prior to the onset of labor and in a control group of patients undergoing normal delivery and w...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(76)90543-3
更新日期：1976-10-01 00:00:00
abstract：OBJECTIVE:Women with Papanicolaou tests classified as cervical intraepithelial neoplasia grade I or II are treated conservatively in many countries. However, these women are at an increased risk of having underlying prevalent and incident grade III cervical intraepithelial neoplasia and invasive cancer. This study was ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2002.118918
更新日期：2002-01-01 00:00:00
abstract：OBJECTIVE:We sought to determine the effect of magnesium sulfate on fetal heart rate baseline value, variability, and acceleration-deceleration pattern. STUDY DESIGN:Normal, nonlaboring pregnant patients at >30 weeks' gestation were recruited. Baseline fetal heart rate monitoring for 1 hour was performed. After an 800...
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(99)70093-1
更新日期：1999-11-01 00:00:00
abstract：BACKGROUND:The incidence of placenta accreta spectrum is rising. Management is most commonly with cesarean hysterectomy. These deliveries often are complicated by massive hemorrhage, urinary tract injury, and admission to the intensive care unit. Up to 60% of patients require transfusion of ≥4 units of packed red blood...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2019.08.035
更新日期：2020-02-01 00:00:00
abstract：:The Supreme IUD has given 100% excellent results with 1000 insertions during 1 year with a complication rate of 1/1000. It is suggested that these results are due to the side rims of the IUD lying 1-3 mm from the uterine side wall, completely covering the upper 50-75% of the uterine side walls. ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(73)90929-0
更新日期：1973-06-15 00:00:00
abstract：OBJECTIVE:The prototypic long pentraxin pentraxin 3 is a new candidate marker for inflammatory conditions reflecting the involvement of the vascular bed. Endothelial dysfunction is a prominent feature of preeclampsia as a result of excessive maternal systemic inflammation. We investigated pentraxin 3 levels in preeclam...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2005.11.018
更新日期：2006-05-01 00:00:00
abstract：OBJECTIVE:Our purpose was to determine the frequency and safety of the use of epidural anesthesia and the correlation between bleeding time and maternal-neonatal bleeding complications in a group of pregnant women who participated in a multicenter trial of low-dose aspirin in pregnancy. STUDY DESIGN:Data regarding typ...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章,多中心研究,随机对照试验
doi：10.1016/0002-9378(95)90495-6
更新日期：1995-05-01 00:00:00
abstract：:Vibroacoustic stimulation is widely used in the United States as a test for fetal well-being, yet little information is available on the adequacy of the electronic artificial larynx that is commonly used as the stimulator. To determine whether the intraabdominal sound pressure level was dependent on the static force a...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(91)90602-n
更新日期：1991-04-01 00:00:00
abstract：:Intervillous placental blood flow and indices of fetal heart rate variability were measured from seven healthy pregnant women in the last trimester of pregnancy, once before and twice after smoking one cigarette. A blood flow reduction was observed in seven, a rise in five, and no change in two measurements. When inte...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(83)90975-4
更新日期：1983-08-15 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：:This review focuses on the contribution of psychosocial stress to the racial/ethnic disparities in preterm delivery in the United States and addresses the subset of psychosocial stressors that are disproportionately prevalent among minority women. We argue that chronic exposure to poverty, racism, and insecure neighbo...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/j.ajog.2005.01.072
更新日期：2005-05-01 00:00:00
abstract：:In a prospective study, 2 gm of conjugated estrogen vaginal cream was administered daily for a total of 6 weeks in a group of 11 postmenopausal women with urodynamically proved genuine stress incontinence. Midurethral cytologic studies and a complete clinical and urodynamic evaluation were performed twice at 6-week in...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(89)90114-2
更新日期：1989-01-01 00:00:00
abstract：OBJECTIVE:We sought to determine whether midpregnancy antioxidant levels are associated with preeclampsia, overall and by timing of onset. STUDY DESIGN:We carried out a case-control study, nested within a cohort of 5337 pregnant women in Montreal, Quebec, Canada. Blood samples obtained at 24-26 weeks were assayed for ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2015.07.027
更新日期：2015-11-01 00:00:00
abstract：OBJECTIVE:Our goal was to evaluate an antibiotic protocol for treatment of postcesarean endometritis. STUDY DESIGN:Endometritis was diagnosed as a persistent fever > or =100.4 degrees F beyond 24 hours after cesarean delivery and one or more of the following: uterine tenderness, tachycardia, foul lochia, or leukocytos...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2000.103249
更新日期：2000-05-01 00:00:00
abstract：:Oligohydramnios is a hallmark for intrauterine growth retardation (IUGR) and has been evaluated in populations suspected of having IUGR. We chose to evaluate its incidence in a routine obstetric population. During a 16-month period, ultrasound scans were performed on 1,408 patients. Severe oligohydramnios was identifi...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(16)32235-9
更新日期：1983-10-15 00:00:00
abstract：:An investigation was undertaken in an effort to learn whether the type of delivery or the pattern of labor progression has any lasting effect on the infant. Paired-data design was chosen to ensure that the comparisons between homogeneous groups would be valid. Our objective was to reduce potential bias based on unequa...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(84)90386-7
更新日期：1984-12-15 00:00:00
abstract：OBJECTIVE:The risk of perinatal death associated with labor after previous cesarean section appears higher than with a repeated cesarean section. On the other hand, repeated cesarean sections are associated with increased maternal morbidity and mortality from placental pathologic conditions (previa or accreta) on subse...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/s0002-9378(03)00833-0
更新日期：2003-09-01 00:00:00
abstract：:Lead represents a significant environmental hazard to pregnant women and their offspring. Exposure to high environmental levels of lead has been associated with spontaneous abortion, premature rupture of fetal membranes (PROM), and preterm delivery. The relationship between lower exposures and obstetric complications ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(16)32282-7
更新日期：1982-01-01 00:00:00
abstract：OBJECTIVE:The study was performed to test the knot integrity of parallel and nonidentical sliding knots with the use of monofilament suture. STUDY DESIGN:We investigated the proportion of parallel sliding knots that become untied compared with nonidentical sliding knots in four different monofilament suture configurat...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(03)00947-5
更新日期：2004-01-01 00:00:00
abstract：OBJECTIVES:Our objectives were to document the causes of fluid absorption during continuous flow hysteroscopy and to determine under which operative conditions fluid overload may occur. STUDY DESIGN:Fifteen patients underwent operative hysteroscopy with 2% ethanol solution for uterine distention. Absorption of fluid w...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(11)91417-3
更新日期：1992-08-01 00:00:00
abstract：OBJECTIVE:Intraperitoneal adhesions are a significant cause of morbidity among women of reproductive age. Monocyte chemotactic protein 1 plays a role in the chemotaxis of mononuclear cells and fibroblasts into the peritoneal injury site. To evaluate its role in intraperitoneal adhesion formation, we used an established...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(98)70376-x
更新日期：1998-08-01 00:00:00
abstract：:A previous study reported frequent resistance of the cervix at 9 mm during dilation and interpreted the resistance as the beginning of a tear of the internal os. A more recent identical study did not indicate such tears. Measurement of the dilators revealed that the set used in the previous study had uneven increments...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(88)80157-1
更新日期：1988-10-01 00:00:00
abstract：BACKGROUND:Only 64% of obstetrics and gynecology program directors report routine, scheduled training in abortion, despite the Accreditation Council for Graduate Medical Education's requirements for routine training. Most report that exposure to training is limited to specific clinical circumstances. OBJECTIVE:We soug...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2019.04.026
更新日期：2019-08-01 00:00:00
abstract：OBJECTIVE:Placental insufficiency is a primary cause of intrauterine growth restriction (IUGR). In our study, microarray technology was used to identify genes, which may impair placentation resulting in IUGR. STUDY DESIGN:The RNA was isolated from both IUGR term placentas and normal term placentas. Microarray experime...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2006.08.027
更新日期：2007-01-01 00:00:00
abstract：:A simple modification of the technique of transabdominal chorionic villus sampling is described. This technique uses a short piece of extension tubing between the needle hub and aspirating syringe. The advantages of this technique are discussed. ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(92)91659-x
更新日期：1992-02-01 00:00:00
abstract：:The effect of Danazol, a new gonadotropin inhibitor, was examined in four categories of patients. (1) Ten normal women medicated orally with Danazol, 800 mg. daily for 91 days, showed no depression of serum LH, estrone, estradiol, or progesterone below control, second-day levels. The serum FSH was slightly depressed; ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1975-03-15 00:00:00
