TY  - JOUR
A1  - Chen, You-Peng
A1  - Li, Jian
A1  - Wang, Zi-Neng
A1  - Reichetzeder, Christoph
A1  - Xu, Hao
A1  - Gong, Jian
A1  - Chen, Guang-Ji
A1  - Pfab, Thiemo
A1  - Xiao, Xiao-Min
A1  - Hocher, Berthold
T1  - Renin angiotensin aldosterone system and glycemia in pregnancy
T2  - Clinical laboratory : the peer reviewed journal for clinical laboratories and laboratories related to blood transfusion
N2  - Background: The renin-angiotensin-aldosterone system (RAAS) is involved in the pathogenesis of insulin resistance and type 2 diabetes in the general population. The RAAS is activated during pregnancy. However, it is unknown whether the RAAS contributes to glycemia in pregnant women.
 Methods: Plasma renin activity (PRA) and plasma aldosterone levels were quantified at delivery in 689 Chinese mothers. An oral glucose tolerance test in fasted women was performed in the second trimester of pregnancy. The diagnosis of gestational diabetes mellitus (GDM) and impaired glucose tolerance during pregnancy were made according to the guidelines of the Chinese Society of Obstetrics.
 Results: Plasma aldosterone was significantly higher in pregnant women with GDM as compared to those without impairment of glycemic control (normal pregnancies: 0.27 +/- 0.21 ng/mL, GDM: 0.36 +/- 0.30 ng/mL; p<0.05). Regression analyses revealed that PRA was negatively correlated with fasting blood glucose (FBG) (R-2 = 0.03, p = 0.007), whereas plasma aldosterone and aldosterone/PRA ratio were positively correlated with FBG (R-2 = 0.05, p<0.001 and R-2 = 0.03, p = 0.007, respectively). Multivariable regression analysis models considering relevant confounding factors confirmed these findings.
 Conclusions: This study demonstrated that fasting blood glucose in pregnant women is inversely correlated with the PRA, whereas plasma aldosterone showed a highly significant positive correlation with fasting blood glucose during pregnancy. Moreover, plasma aldosterone is significantly higher in pregnant women with GDM as compared to those women with normal glucose tolerance during pregnancy. Although causality cannot be proven in association studies, these data may indicate that the RAAS during pregnancy contributes to the pathogenesis of insulin resistance/new onset of diabetes during pregnancy.
KW  - Renin-angiotensin-aldosterone system
KW  - pregnancy
KW  - fasting blood glucose
KW  - glycemic control
Y1  - 2012
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/36294
SN  - 1433-6510
VL  - 58
IS  - 5-6
SP  - 527
EP  - 533
PB  - Clin Lab Publ., Verl. Klinisches Labor
CY  - Heidelberg
ER  -