Effect of 15(S)15-methyl-PGF2α-methyl ester vaginal suppositories on circulating hormone levels in early pregnancy |
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Authors: | Chander P Puri V Laumas N Agarwal Zoremthangi V Hingorani Kesho R Laumas |
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Institution: | Department of Reproductive Biology and the Department of Obstetrics and Gynaecology All India Institute of Medical Sciences New Delhi-110016, India |
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Abstract: | Intravaginal administration of 15-methyl-PGF2α-methyl ester in the form of suppositories terminated pregnancy in 70 percent of the cases whose last menstrual periods ranged from 35 to 56 days. The use of these suppositories in 49 patients, between 57 to 80 days of gestation, dilated the cervix by 10 mm or more, in one hundred percent of the cases. A decrease in circulating levels of estradiol-17β and progesterone was observed following 15-methyl-PGF2α administration. The mean estradiol-17β levels declined by about 55.9 percent at 9 hours whereas, the corresponding fall in progesterone was 32.7 percent. This was indicative of a direct action of 15-methyl-PGF2α on the corpus luteum. The vaginal use of 15-methyl-PGF2α-methyl ester suppositories thus appears to be a promising method for the termination of early pregnancy and for pre-operative cervical dilatation. The termination of early pregnancy appears to be partly due to the luteolytic effect of 15-methyl-PGF2α besides stimulating uterine contractions. |
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