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Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 J+Renin+Angiotensin+Aldosterone+Syst 2016 ; 17 (3): ä Nephropedia Template TP
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Increased renal apoptosis and reduced renin?angiotensin system in fetal growth restriction #MMPMID27534427
Objective:: The purpose of the study was to characterize changes in apoptosis and the renin?angiotensin system (RAS) in fetal growth restriction (FGR). Materials and method:: Fetuses were collected from patients who visited our hospital to either terminate or abort their pregnancy. Kidneys of fetuses which suffered with FGR, (n=11) at gestational age of 33.4±0.5 weeks and those from non-FGR (n=12) at gestational age of 34.3±0.9 weeks were collected. TUNEL, Bax and Bcl-2 staining were examined. The number of nephrons was also counted. Both protein and mRNA levels of renin and angiotensinogen were analyzed. Ultrasound was applied to measure fetus parameters including biparietal diameter, head circumference, circumference of abdomen, and femur length. Results:: The number of nephrons was positively correlated with fetal weight at termination. Kidneys in the FGR group presented more apoptotic cells than those in the non-FGR group. Renin and angiotensinogen both decreased in the FGR group. Ultrasound revealed that biparietal diameter, abdomen circumference, femur length, and birth weight were all reduced in the FGR group compared with the non-FGR group. Kidney size was also restricted in the FGR group as indicated by ultrasound. Conclusion:: Renal apoptosis might contribute to the reduction of nephrons, and ultrasound plays a vital role in early diagnosis of developmental origins of health and disease (DOHAD).