DETERMINATIONS OF ENDOTHELIN IN NORMAL PREGNANCY
- VernacularTitle:正常妊娠中内皮素的测定
- Author:
Shusheng GAO
;
Youqi XU
- Publication Type:Journal Article
- Keywords:
Endothelin;
Pregnancy;
Blood pressure;
Labour
- From:
Medical Journal of Chinese People's Liberation Army
1981;0(06):-
- CountryChina
- Language:Chinese
-
Abstract:
We measured Plasma endothelin 1 (ET-1) concentrations in 110 normal pregnant women (NPW) and 23 normal non pregnant women (NNPW), that of maternal venous (MV), umbilical artery (UA) and umbilical vein (UV) in 20 normal parturient women at term (vaginal), and the tissue ET-1 concentrations of the placenta, fetal membrane, decidua and myometrium in 12 normotensive women at term (caesarean section) by radioimmunoassay. Results: compared with NNPW, plasma ET-1 levels were significantly decreased in NPW, and the lowest levels was in the second trimester. The plasma ET-1 levels were significantly increased in the labour, and were similar to that in NNPW. There were significant positive correlations between plasma ET-1 levels and mean arterial pressure in NNPW and NPW during the first, second and third trimester. UA and UV (ET -1) were 3.7 and 6.5 times of MV (ET 1), the UV (ET 1) was higher than UA (EF-1) significantly. The ET-1 concentrations of fetal membrane, placenta, decidua and myometrium were 38, 26, 19 and 11 times of MV (ET 1). Conclusions: ET 1 may play an important role in the initiation and process of labour and the regulation of blood pressure.
