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Objective To compare the effectiveness and adverse effects of nifedipine versus indomethacin in the treatment of preterm labor. Methods In a randomized clinical trial, 79 women with labor pain at 26–33 weeks of gestation were treated with either oral nifedipine (n = 40) or rectal indomethacin (n = 39). Results Twenty-three (59%) women in the indomethacin group, and 10 (25%) in the nifedipine group did not respond to treatment (P = 0.002). None of the 16 and 30 women remaining in the indomethacin and nifedipine groups, respectively, delivered during the subsequent 48 hours. Of these remaining women, 1 (6.25%) in the indomethacin group and 4 (13.3%) in the nifedipine group delivered between 48 hours and 7 days (P = 0.162). For the women who responded to treatment, the mean gestational age at time of delivery was 238.5 ± 19.4 days and 246.4 ± 15.4 days in the nifedipine and indomethacin groups, respectively (P = 0.182). Seventeen (42.5%) women in the nifedipine group, and 11 (28.2%) in the indomethacin group showed adverse effects (P = 0.184). Conclusion Indomethacin was less effective than nifedipine for the fast treatment of preterm labor. For women who responded to treatment within 2 hours, however, the delaying of delivery by indomethacin was similar to that by nifedipine.

Recent studies indicated that there is a high density of small nerve fibers in the functional layer of the endometrium in women with endometriosis and that it can be used as a marker to detect endometriosis. In this study, the efficacy assessment of small nerve fibers' density as a diagnostic marker was compared in patients with and without endometriosis.In this study, women with history of pelvic pain and/or infertility who were candidates for laparoscopy or laparotomy in Rassoul hospital (2007-2009) were enrolled. Histological sections of endometrial tissue were prepared from endometrial biopsy from women with endometriosis (n = 12) (1) and without endometriosis (n = 15) (2). Protein gene product 9.5 and neurofilament were evaluated as marker from endometrial biopsies by immunohistochemical methods.There was no statistically significant difference between two groups according to age, body mass index. Nerve fibers were detected in all endometrial biopsies from all women with endometriosis but detected only in three women without endometriosis. The mean density of nerve fibers was 2.2 ± 4.7 mm(-2) in group without endometriosis and) 13.1 ± 3.3 (in group with endometriosis (p0.001). Women with endometriosis had significantly higher nerve fiber density in comparison with women without endometriosis.Our findings indicated that endometrial biopsy for detecting density of nerve fibers by usage of protein gene product 9.5, provided a reliable marker for diagnosis of endometriosis.