Abstract:
OBJECTIVE:We hypothesize that genetic variations (single nucleotide polymorphisms-SNPs) in the tumor necrosis factor-alpha (TNF-alpha), TNF receptors (TNFRI and TNFRII), interleukin-6 (IL-6) and IL-6 receptor (IL-6R) genes predict high-risk status for spontaneous preterm birth (sPTB) in European-American women. In this study we examine the allelic and genotypic variations and the gene-gene interactions in the TNF-alpha, TNFRs, IL-6, and IL-6R genes in maternal DNA samples by using a case-control model. STUDY DESIGN:Maternal DNA from cases of sPTB after preterm labor (n = 101) and controls (normal term labor and delivery) (n = 321) were genotyped for SNPs in the TNF-alpha (6), TNFRI (6), TNFRII (7), IL-6 (5), and IL-6R (3) loci. SNPs were tested for both allele and genotype differences (cases vs controls) with the use of standard genetic epidemiologic methods. Multilocus interaction was assessed with multifactor dimensionality reduction analysis (MDR) to test all single and multilocus combinations for the ability to predict sPTB. RESULTS:Few significant allelic and genotypic associations were detected between cases and controls in maternal DNA. Single locus analysis documented independent association of SNPs at -7294 (allele and genotype) of TNFRI and 24660 (genotype) TNFRII loci with sPTB. MDR revealed a significant 3 locus model that includes SNPs -3448 of TNF-alpha, -7227 of IL-6, and 33314 of IL-6R. This interactive model allowed the successful prediction of pre- to low-risk genotypes is 3.50 (95% CI 2.52-4.87, P < .001). CONCLUSION:This is the first report to document a multilocus interaction in sPTB that predicts 65.2% of the cases in a European-American sample. Although putatively significant associations with sPTB were seen at a few single locus sites in TNFRI and TNFRII, they were not as predictive as the 3-locus model produced by MDR, suggesting the use of multilocus analyses in gene association studies of complex disease such as sPTB.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Menon R,Velez DR,Simhan H,Ryckman K,Jiang L,Thorsen P,Vogel I,Jacobsson B,Merialdi M,Williams SM,Fortunato SJdoi
10.1016/j.ajog.2006.03.059subject
Has Abstractpub_date
2006-06-01 00:00:00pages
1616-24issue
6eissn
0002-9378issn
1097-6868pii
S0002-9378(06)00382-6journal_volume
194pub_type
杂志文章abstract::Prostacyclin is a potent vasodilator produced by both maternal and fetal tissues that dilates the umbilical placental vasculature in vitro. To test the hypothesis that prostacyclin dilates the fetal placental circulation in vivo, we measured blood flow by the radioactive microsphere technique in six unanesthetized nea...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(89)90303-7
更新日期:1989-04-01 00:00:00
abstract::Brachial artery Doppler flow velocity waveforms were recorded from 10 nonpregnant women and 19 women with uncomplicated pregnancies. The pregnant group showed higher peak systolic frequencies (3.24 compared with 2.26, p = 0.01), higher maximum end-diastolic frequencies (0.62 compared with 0.25, p = 0.01), and lower pu...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(91)90026-n
更新日期:1991-12-01 00:00:00
abstract::Since July 1, 1978, we have instituted the following changes in the management of severely Rh-immunized patients: (1) serial amniotic fluid optical density (delta OD450 ) values and real-time ultrasound scanning beginning at 21 weeks' gestation, (2) fetal transfusions as early as the twenty-third week, (3) ultrasound ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(84)90234-5
更新日期:1984-06-01 00:00:00
abstract::Experiments were performed in conscious rabbits to investigate when during pregnancy cardiac baroreceptor reflex gain decreases. A decrease in gain was first observed after 3 weeks of gestation (-34.1 +/- 4.9 to -15.7 +/- 3.1 beats/min/mm Hg, p < 0.05) and became more pronounced after 4 weeks (-30.2 +/- 4.7 to -8.6 +/...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0002-9378(97)70571-4
更新日期:1997-03-01 00:00:00
abstract::To test the hypothesis that amniotic fluid directly affects cardiac function, isolated rat hearts were perfused with varying concentrations of centrifuged and filtered human amniotic fluid. The most consistent change seen was a dose-dependent decrease in coronary flow rate. With 10% concentrations, a wide spectrum of ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(88)90812-5
更新日期:1988-01-01 00:00:00
abstract:OBJECTIVE:We sought to determine the long-term efficacy, safety, and urodynamic effects of the Mersilene mesh suburethral sling in treating complicated forms of genuine stress incontinence. STUDY DESIGN:Two hundred women diagnosed with genuine stress incontinence, complicated by recurrence, intrinsic sphincter deficie...
journal_title:American journal of obstetrics and gynecology
pub_type: 临床试验,杂志文章
doi:10.1067/mob.2001.116370
更新日期:2001-07-01 00:00:00
abstract::The neuropathologic conditions in 120 perinatal deaths attributed to fetal or newborn asphyxia were examined. Central nervous system necrosis was present in 16 of these deaths. The approximate time of asphyxial insult was established by determining the duration of the process, based on the findings of neuronal necrosi...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0002-9378(89)80040-7
更新日期:1989-03-01 00:00:00
abstract::The levels of unconjugated estriol in maternal vein serum during labor, cord artery serum, and cord vein serum were measured in normal pregnancy and in pregnancy complicated by intrauterine growth retardation. The mean level of unconjugated estriol in maternal vein serum was significantly lower in the intrauterine gro...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1977-01-01 00:00:00
abstract::Patients who develop polyarteritis nodosa in pregnancy generally have a grim prognosis. A young nulliparous woman developed the disease and attained remission before becoming pregnant. Although she developed a recurrence, both mother and infant did well. It appears that if a patient becomes pregnant while in remission...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章,评审
doi:10.1016/s0002-9378(89)80039-0
更新日期:1989-03-01 00:00:00
abstract::The purpose of this review is to assimilate relevant experimental and clinical information available on selective estrogen receptor modulators with respect to their potential use as agents to improve women's health in the postmenopausal years. In addition, the mechanisms of action of these drugs are outlined. Selectiv...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章,评审
doi:10.1016/s0002-9378(99)70285-1
更新日期:1999-03-01 00:00:00
abstract::Color Doppler imaging could easily and rapidly detect the absence of an umbilical artery, despite the presence of oligohydramnios in one case and multiple cord loops involving a normal cord in the other case. In the third case, which on gray-scale imaging appeared as an indeterminate cystic structure of the cord, colo...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(89)90663-7
更新日期:1989-11-01 00:00:00
abstract::It has recently been suggested that platelet-activating factor is involved in a number of processes associated with reproductive biology. We have demonstrated a critical role for this autacoid in the initiation and maintenance of parturition both in animals and man. In the present investigation, it has been demonstrat...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0002-9378(11)90610-3
更新日期:1992-04-01 00:00:00
abstract::The diagnosis of polycystic ovary syndrome (PCOS) is primarily achieved through clinical history and physical findings. The principle features are hirsutism or biochemical evidence of excess androgen production and irregular menstrual bleeding caused by the chronic anovulation. Associated findings include insulin resi...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章,评审
doi:10.1016/j.ajog.2004.04.045
更新日期:2004-09-01 00:00:00
abstract::Platelet-poor plasma from 13 nonpregnant, 33 normally pregnant, and eight preeclamptic women was incubated with prostacyclin. The ability of platelet-poor plasma to diminish the antiaggregatory effect of prostacyclin was assessed by measuring this effect on arachidonic acid-induced platelet aggregation. Platelet aggre...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(87)90370-x
更新日期:1987-04-01 00:00:00
abstract::Advances in modern medicine invite the assumption that medicine can control human biology. There is a perilous logic that leads from expectations of medicine's control over reproductive biology to the expectation of having a perfect baby. This article proposes that obstetricians should take a preventive ethics approac...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章,评审
doi:10.1016/j.ajog.2010.01.058
更新日期:2010-08-01 00:00:00
abstract:OBJECTIVE:We sought to characterize the labor of women attempting trial of labor after cesarean (TOLAC) who experience uterine rupture. STUDY DESIGN:We conducted a secondary analysis of a nested case-control study of women attempting TOLAC. Women experiencing uterine rupture (cases) were compared to 2 reference groups...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2012.06.028
更新日期:2012-09-01 00:00:00
abstract::The Long-Acting Reversible Contraception (LARC) Program at the American College of Obstetricians and Gynecologists (ACOG) celebrated its 10th anniversary in 2018. This Viewpoint article reviews opportunities, challenges, and lessons learned by the ACOG LARC Program throughout the last decade. Housed within the largest...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2019.11.1269
更新日期:2020-04-01 00:00:00
abstract:OBJECTIVE:Our purpose was to determine whether elevated second-trimester human chorionic gonadotropin levels identify women likely to benefit from low-dose aspirin therapy. STUDY DESIGN:We evaluated second-trimester human chorionic gonadotropin levels obtained from healthy nulliparous women before screening for partic...
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(95)91373-4
更新日期:1995-10-01 00:00:00
abstract:OBJECTIVE:Our purpose was to define the diagnostic value of a new fetal assessment score that is based on each of the components of the Apgar score. STUDY DESIGN:A fetal assessment score was established to study the main fetal vital functions: (1) cardiovascular (heart rate, color of the skin in the Apgar score), now ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(93)90618-s
更新日期:1993-09-01 00:00:00
abstract::Forty-three pregnancies that were complicated by pregnancy-induced hypertension and either absence of umbilical artery end-diastolic frequencies (n = 32) or reversal of umbilical artery end-diastolic frequencies (n = 11) were reviewed. The incidence of perinatal mortality and morbidity was similar for the two Doppler ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(91)90590-n
更新日期:1991-04-01 00:00:00
abstract:BACKGROUND:A growing literature suggests that minority races, particularly Black women, have a lower probability of live birth and higher risk of perinatal complications after autologous assisted reproductive technology. However, questions still remain as to whether these racial disparities have arisen because of assoc...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2020.09.013
更新日期:2020-09-12 00:00:00
abstract:OBJECTIVE:This study was undertaken to evaluate the effects on peripheric pulmonary vessel muscularization by tracheal occlusion (TO) performed at different gestational ages in fetal rabbits with surgically induced diaphragmatic hernia. STUDY DESIGN:In 23 New Zealand white does, both ovarian end fetuses underwent surg...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2004.01.006
更新日期:2004-09-01 00:00:00
abstract:OBJECTIVE:We previously demonstrated that prenatal nicotine exposure decreases neonatal pulmonary function in nonhuman primates, and maternal vitamin C supplementation attenuates these deleterious effects. However, the effect of nicotine on placental perfusion and development is not fully understood. This study utilize...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2014.12.042
更新日期:2015-03-01 00:00:00
abstract::Generally there is a tendency to underrate the value of uterine height in the diagnosis of intrauterine growth retardation (IUGR). This fact is probably due to the lack of standard normal values for this measurement. In a group of 298 healthy pregnant women, the 10th, 50th, and 90th percentile were calculated by week ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(78)90824-4
更新日期:1978-07-15 00:00:00
abstract::A randomized controlled study was carried out at three medical centers to compare the efficacy and side effects of ethanol and ritodrine in the treatment of threatened premature labor. One hundred and thirty-five patients judged to be between the twentieth and thirty-sixth week of gestation and presenting with clinic...
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(77)90115-6
更新日期:1977-04-15 00:00:00
abstract:OBJECTIVE:Our objective was to evaluate whether a significant association exists between cocaine use, cervical, urine, and/or Group B streptococcus (GBS) infections and preterm birth (PTB) in patients admitted with active preterm labor (PTL). STUDY DESIGN:A retrospective cohort study of PTL patients < 34 weeks (n = 40...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2007.10.777
更新日期:2008-05-01 00:00:00
abstract:BACKGROUND:Pudendal neuralgia is a painful neuropathic condition involving the pudendal nerve dermatome. Tarlov cysts have been reported in the literature as another potential cause of chronic lumbosacral and pelvic pain. Notably, they are often located in the distribution of the pudendal nerve origin at the S2, S3, an...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2019.07.021
更新日期:2020-01-01 00:00:00
abstract:OBJECTIVE:Patients with preeclampsia (PE) have endothelial dysfunction and an increased future risk of cardiovascular (CV) mortality. The number of circulating endothelial cells (CECs) is markedly increased in conditions associated with a high degree of endothelial cell activation/injury including PE. We hypothesized t...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2015.06.043
更新日期:2015-10-01 00:00:00
abstract:OBJECTIVE:We sought to examine etiology and preventability of maternal death and the causal relationship of cesarean delivery to maternal death in a series of approximately 1.5 million deliveries between 2000 and 2006. STUDY DESIGN:This was a retrospective medical records extraction of data from all maternal deaths in...
journal_title:American journal of obstetrics and gynecology
pub_type: 历史文章,杂志文章
doi:10.1016/j.ajog.2008.03.007
更新日期:2008-07-01 00:00:00
abstract::An attempt is made to define the quality of life in terms of the patient with gynecologic cancer. The effect of the diagnosis of cancer and its recurrence or its terminal state on the quality of life is considered. Possible methods of assessing the patient's individual feelings about the quality of her life are review...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(79)90857-3
更新日期:1979-08-15 00:00:00