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Vaginal and abdominal delivery increases maternal urinary 6-keto-prostaglandin F1 alpha excretion 总被引:1,自引:0,他引:1
O Ylikorkala H Paatero L Suhonen L Viinikka 《British journal of obstetrics and gynaecology》1986,93(9):950-954
To study the role of the antiaggregatory and vasodilatory prostacyclin (PGI2) during human delivery, serial urine samples collected from 13 women delivered vaginally and from eight delivered abdominally were assayed for 6-keto-prostaglandin F1 alpha (6-keto-PGF1 alpha, a breakdown product of PGI2) by high-performance-liquid-chromatography and radioimmunoassay. In women delivered vaginally the mean urinary 6-keto-PGF1 alpha concentration was 41.9 (SE 8.3) ng/mmol creatinine, before the onset of labour and increased progressively to a maximum of 186.5 (SE 47.6) ng/mmol creatinine 2 h after delivery irrespective of the use of oxytocin and epidural analgesia. In women delivered by caesarean section under epidural anaesthesia, the urinary 6-keto-PGF1 alpha rose from 33.4 (SE 4.2) ng/mmol creatinine to 2153 (SE 314) ng/mmol creatinine 2 h after section. In both groups the increased levels had fallen by 24 h postpartum to levels below those found before delivery. In neonatal urine 6-keto-PGF1 alpha concentrations were some 12-30 times higher than those in postpartum urine. Thus, vaginal and abdominal delivery is accompanied by significant increases in maternal PGI2 release, perhaps in the myometrium and/or intrauterine tissues. This may be of significance in the regulation of fetoplacental blood flow and in the prevention of intra- and postpartum thrombosis. 相似文献
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M. A. Quinn M. Jalland R. Wein M. Kloss 《The Australian & New Zealand journal of obstetrics & gynaecology》1981,21(2):93-95
Summary: Tylose gel containing either 10 mg prostaglandin F2α or sterile water was inserted into the posterior vaginal fornix of 130 patients either 12 hours or 4 hours before suction curettage. No benefit in terms of cervical softening or blood loss was noted in patients who received the prostaglandin gel. 相似文献
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Andrew Korda Rodney P. Shearman Ian D. Smith 《The Australian & New Zealand journal of obstetrics & gynaecology》1972,12(3):166-169
Summary: Fourteen pregnancies between the 12th and 19th weeks of gestation were terminated by intra-uterine administration of prostaglandin F2α . In 7 patients the method of administration was transcervically into the extra-ovular space; in the other 7, administration was directly into the amniotic sac. The methods of administration, the doses used, the side effects and results are discussed. The findings indicate that intra-amniotic administration is the procedure of choice: firstly, because of the incidence of genital tract infection after transcervical administration; secondly, because 3 patients in the transcervical group had incomplete abortions and required anaesthesia for curettage; and finally, the induction-abortion interval was significantly less when the drug was administered into the uterine cavity. 相似文献
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S. C. BELL Lecturer in Reproductive Biochemistry M. W. HALES Chief Technician S. R. PATEL Research Technician P. H. KIRWAN Lecturer J. O. DRIFE Senior Lecturer A. MILFORD-WARD Director 《BJOG : an international journal of obstetrics and gynaecology》1986,93(9):909-915
Summary. The levels of pregnancy-associated endometrial α1 - and α2 -globulins (α1 - and α2 -PEG), the two major proteins synthesized and secreted by the endometrium in vitro have been assayed in 210 amniotic fluid specimens obtained at termination of pregnancy or by amniocentesis, or at delivery. α1 -PEG was undetectable until week 10 and thereafter rose to peak levels between weeks 20 and 24. Levels fell 15-fold by week 35 but substantial amounts were still present at parturition. α2 -PEG was present at highest levels during early pregnancy, at weeks 6–15, but thereafter levels rapidly fell until during weeks 31–42 α2 -PEG was detectable in only 3 of 25 specimens. During weeks 15–20, when α2 -PEG levels fell and α1 -PEG levels rose, a high correlation was observed between the week of gestation and the log of the ratios of the concentration of these proteins. These observations provide the opportunity to assess the role of endometrial and decidual dysfunction in the aetiology of pregnancy disorders. 相似文献
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M. A. LUMSDEN Research Fellow R. W. KELLY Biochemist D. T. BAIRD Professor 《BJOG : an international journal of obstetrics and gynaecology》1983,90(12):1135-1140
Summary. Menstrual fluid was collected in a contraceptive diaphragm from 16 women with primary dysmenorrhoea and 12 matched control subjects without dysmenorrhoea. Prostaglandins F2α (PGF2α ), E2 (PGE2 ) and 6-oxo-prostaglandin F1α (6-oxo-PGFlα ) were extracted and measured using gas-chromatography: mass spectrometry (GC:MS). The concentrations of both PGF2α and PGE2 were higher on days 1 and 2 in the dysmenorrhoea group than in the control group and the concentration of PGF2α was higher on day 1 than on day 2 in the dysmenorrhoea group. The concentrations of 6-oxo-PGF1α (the stable metabolite of PGI2 ) were low in both groups. These results confirm suggestions that PGF2α is important in the aetiology of dysmenorrhoea and also indicate that PGE2 may be involved. 相似文献
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Arnold Gillespie C. D. Matthews O. Petrucco 《The Australian & New Zealand journal of obstetrics & gynaecology》1974,14(2):95-98
Summary: Ninety-eight patients were given prostaglandin F2α for the induction of mid-trimester abortion. In 42 the PGF2α was administered by the extra-amniotic route and 37 aborted. A further 56 received the PGF2α intra-amniotically and 55 aborted. Dose regimens are compared. 相似文献
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A. J. Tyack Lecturer in Obstetrics Gynaecology Carol Lambadarios Research Assistant R. J. Parsons Lecturer in Medical Physics C. R. Stewart Lecturer in Obstetrics Gynaecology I. D. Cooke Professor of Obstetrics Gynaecology 《BJOG : an international journal of obstetrics and gynaecology》1974,81(1):52-56