Phospholipase A2 Producing Bacteria, Age at Gestation, Cervical Length Measurement and the Incidence of Pre-Term Labor
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 50
- 试验地点
- 2
- 主要终点
- Incidence of spontaneous preterm birth
研究概览
简要总结
The purpose of this study is to better understand (1) if phospholipase A2 producing microorganisms and cytokines (IL-1, IL-4, IL-6, IL-10, and IL-13) are associated with premature labor (2) if pregnant teens are more likely to have phospholipase A2 producing bacteria than a pregnant adults and (3) if there is a difference in the cytokines between pregnant teens and adults.We hypothesize that phospholipase producing microorganisms may trigger the onset of premature labor. The following are hypothesized: (a) The microorganism cultured should show high activities of phospholipase A2 (b) The cervical length measurement predictive value should correspond to the gestation age at term (c) Vaginal flora of teen will be more susceptible to colonization with higher phospholipase A2 producing bacteria than that of an adult (d) The maternal genotype contribution to the concentration of IL-1, IL-4, IL-6, IL-10, IL-13, and TNF-alpha during the first trimester of pregnancy in teens is different in the production of inflammatory cytokines and modulators(e) The maternal genotype of teens therefore influences the production of phospholipase A2 and causes an increase in preterm delivery.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 14 Years 至 45 Years(Child, Adult)
- 性别
- Female
- 接受健康志愿者
- 是
入选标准
- •Gestational age <34 weeks
- •Singleton gestation
- •Urinalysis and urine culture collected via clean catch
- •Age range 14 - 45
- •Patient receiving prenatal care at CAMC Women's Medicine Center
排除标准
- •In labor or with uterine contractions
- •Known fetal anomalies
- •Dark amniotic fluid suggestive of previous bleeding
- •Multiple gestation
- •Known unbalance chromosomal complement
- •Pregnant patient with prior history of excisional cervical biopsy (either cold knife, loop electrosurgical excision procedure, or laser conization)
- •Patient with mullerian anomaly
- •Patient with 2 or more D&E secondary to spontaneous or induced abortion
结局指标
主要结局
Incidence of spontaneous preterm birth
时间窗: From enrollment during pregnancy until birth
次要结局
未报告次要终点
