Interleukin-1beta and interleukin-8 concentrations in the lower uterine segment during parturition at term

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Abstract

Objective: To assess the roles of interleukin-1β, interleukin-8, and fibroblasts in the lower uterine segment during parturition. Methods: Lower uterine segment biopsy specimens were obtained from 36 women undergoing cesarean delivery at various stages of cervical dilation (less than 2 cm, n = 8; 2 to less than 4 cm, n = 9; 4-6 cm, n = 10; more than 6 cm, n = 9). The concentrations of interleukin-1β and interleukin-8 in protein extracts prepared from the tissue samples were measured by enzyme immunoassays. The effect of incubation with interleukin-1β (30 U/mL) on interleukin-8 secretion by lower uterine segment fibroblasts in vitro also was determined. Results: The median interleukin-1β concentration in the specimens increased from 1.3 pg/mg of total protein at less than 2 cm of dilation to 22.2 pg/mg of total protein at 4-6 cm of dilation (P

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Winkler, M., Fischer, D. C., Hlubek, M., Van De Leur, E., Haubeck, H. D., & Rath, W. (1998). Interleukin-1beta and interleukin-8 concentrations in the lower uterine segment during parturition at term. Obstetrics and Gynecology, 91(6), 945–949. https://doi.org/10.1016/S0029-7844(98)00098-2

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