@article{3114720, title = "Association between serum tumor necrosis factor-alpha and corticotropin-releasing hormone levels in women with preterm labor", author = "Vitoratos, Nicolaos and Papadias, Konstantinos and Makrakis, Evangelos and and Christodoulakos, George and Panoulis, Konstantinos and Creatsas, and George", journal = "Journal of Obstetrics and Gynaecology Research", year = "2006", volume = "32", number = "5", pages = "497-501", publisher = "Blackwell Publishing Inc.", issn = "1341-8076, 1447-0756", doi = "10.1111/j.1447-0756.2006.00441.x", keywords = "corticotrophin-releasing hormone; labor; pregnancy; preterm labor; tumor necrosis factor-alpha", abstract = "Aim: To evaluate the association of serum corticotropin-releasing hormone (CRH) and tumor necrosis factor-alpha (TNF-alpha) in preterm labor. Methods: Forty-nine primigravidas with a singleton viable pregnancy between 28 and 34 weeks of gestation were studied. They were divided into two groups. Group A consisted of 30 pregnant women (mean gestational age: 30.6 week) who presented with preterm labor and group B consisted of 19 pregnant women (mean gestational age: 29.8 week) with normal pregnancies. Results: Women of group A had significantly higher serum CRH levels compared to those of group B (P < 0.01). Similarly, serum TNF-alpha levels were significantly higher in women of group A when compared to women of group B (7.8 +/- 3.72 pg/mL and 5.1 +/- 3.72 pg/mL, respectively). Furthermore, a positive correlation was found between serum CRH and TNF-alpha levels in both groups, which was stronger in women of group A. Conclusions: Our findings suggest that the increased levels of TNF-alpha and CRH found in pregnant women presenting with preterm labor may be involved in the pathophysiological mechanism of the latter. Furthermore, a positive interaction may exist between TNF-alpha and placental CRH, which may lead to enhanced production of the second and, therefore, facilitate the onset of labor." }