Sebahat TÜLPAR
(Erciyes Üniversitesi, Tıp Fakültesi, Çocuk Nefroloji Bilim Dalı, Kayseri, Türkiye)
Zübeyde GÜNDÜZ
(Erciyes Üniversitesi, Tıp Fakültesi, Çocuk Nefroloji Bilim Dalı, Kayseri, Türkiye)
Nurcan DURSUN
(Erciyes Üniversitesi, Tıp Fakültesi, Fizyoloji Anabilim Dalı, Kayseri, Türkiye)
Figen ÖZTÜRK
(Erciyes Üniversitesi, Tıp Fakültesi, Patoloji Anabilim Dalı, Kayseri, Türkiye)
Nedret KOÇ
(Erciyes Üniversitesi, Tıp Fakültesi, Mikrobiyoloji Anabilim Dalı, Kayseri, Türkiye)
Yıl: 2019Cilt: 19Sayı: 1ISSN: 1302-9940 / 1308-8491Sayfa Aralığı: 27 - 36İngilizce

33 0
The Renal Structural and Functional Changes in Rats with Intrauterine Growth Retardation and its Correlation to Serum Leptin Level
Objective: Our aim was to determine the effects of intrauterine growth retardation (IUGR) on the kidney and whether serum leptin level was associated with these changes. Method: After feeding with standard diet for 7 days pregnant rats were divided into 2 groups on the 8th day. While the control group continued to be fed with normal diet during pregnancy, the study group was fed with only half of their normal needs. Structural evaluations were performed in fetuses at 21. gestational days and offsprings at 3, 6, 16 weeks of age The kidneys were investigated according to their weight, light microscopy findings, nephron counts and glomerular volume. Renal excretory function was determined as for functional evaluation. Fetuses and 3 week- old rat kidneys were investigated only structurally. Serum leptin levels were measured at 3, 6, 16 weeks of age, while direct blood pressure and renal blood flows were measured at 16. week of age. Results: Renal weights were lower in the IUGR groups. In IUGR group, decreased number of nephrons were found in fetuses and 16-week-old offsprings. Urine flow rate, renal blood flow, GFR, Na, K and, Mg excretions were lower in the 16-week offspring group compared to the control group, but protein excretion was higher and blood pressure was at normal level. The IUGR rats had significantly elevated serum leptin levels at 3-week-old rats. The leptin levels in 6-week-old females were almost 60% higher than controls. For all ages there was a negative correlation between leptin levels and fractional kidney weights. Leptin level and urine volume were correlated in the 6-week-old rats. There were positive correlations between leptin and blood pressure, excretions of creatinin, Na and K in 16-week-old rats. Conclusion: In conclusion, temporary increase of serum leptin concentration during weaning may not be associated with the deleterious effect of kidney structure and function at least until early adulthood in IUGR.
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