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  • Title: Effects of aminoguanidine on glomerular basement membrane thickness and anionic charge in a diabetic rat model.
    Author: Yavuz DG, Ersöz HO, Tuncel M, Sargon MF, Küçükkaya B, Ahiskali R, Akalin S.
    Journal: Int J Exp Diabetes Res; 2001; 2(3):225-32. PubMed ID: 12369711.
    Abstract:
    We investigated the effect of aminoguanidine (AG) administration on GBM thickness, glomerular heparan sulfate (HS) content, and urinary albumin and HS excretion in diabetic rats. After induction of diabetes, female Wistar rats were divided into 2 groups: Group AGDM (n = 11) received 1 g/L aminoguanidine bicarbonate in drinking water, group DC (n = 12) was given only tap water. Control rats received AG (group AGH, n = 8) or tap water (group HC, n = 8). At the end of a period of 8 weeks, urinary albumin and glycosaminoglycan (GAG) excretion was detected. GBM heparan sulfate distribution and count was determined under the electron microscope. The AGDM group had lower urinary albumin and GAG excretion than diabetic controls. GBM thickness was increased in diabetic rats compared to groups of AGDM and HC. In AGDM group alcian blue stained particle distribution and count in the GBM was similar to healthy controls. In conclusion AG prevents the decrease of anionic charged molecules in the GBM and GBM thickening. This can be one of the mechanisms by which AG decreases albuminuria in diabetic rats.
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