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Current Diabetes Reviews


ISSN (Print): 1573-3998
ISSN (Online): 1875-6417

Hyperglycemia to Nephropathy via Transforming Growth Factor Beta

Author(s): Mayuresh Sudamrao Garud and Yogesh Anant Kulkarni

Volume 10 , Issue 3 , 2014

Page: [182 - 189] Pages: 8

DOI: 10.2174/1573399810666140606103645

Price: $65


Nephropathy is one of the major complications of diabetes which further directs to end stage renal disease. Extensive work has been done to find out the mechanisms involved in pathogenesis of the DN. Now, many researchers have been convinced that almost all of the molecular mediators and intracellular signaling pathways involved in progression of diabetic nephropathy have involvement in transforming growth factor beta (TGF- β) at some stage.

In DN, hyperglycemia causes increase in the expression of TGF- β genes, TGF- β proteins and their receptors. Increased glucose level mediates these effects through activation of polyol pathway, protein kinase C pathway, hexosamine pathway, increases advanced glycation end products (AGE) and increases oxidative stress. Hyperglycemia also activates the TGF- β via activation of glucose transporters (GLUT), angiotensine II and platelet derived growth factor (PDGF). Activated TGF-β further leads to glomerular basement membrane (GBM) thickening and glomerulosclerosis through activation of connective tissue growth factor (CDGF) and vascular endothelial growth factor (VEGF).

We have discussed the progression of hyperglycemia to DN via TGF- β, whose schematic presentation may serve as an effective way to understand the mechanisms and to find out an effective way for the management of diabetic nephropathy.

Keywords: AGE, GBM, glomerulosclerosis, PDGF, protein kinase C, VEGF.

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