Renal distribution of ganglioside GM3 in rat models of type 1 and type 2 diabetes (CROSBI ID 191289)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Novak, Anela ; Režić Mužinić, Nikolina ; Čikeš Čulić, Vedrana ; Božić, Joško ; Tičinović Kurir, Tina ; Ferhatović, Lejla ; Puljak, Livia ; Markotić, Anita
engleski
Renal distribution of ganglioside GM3 in rat models of type 1 and type 2 diabetes
Ganglioside GM3 is particularly abundant in the kidney tissue and are thought to play an important role in the maintenance of the charge-selective filtration barrier of glomeruli. Altered expression of ganglioside GM3 was pathologically related with glomerular hypertrophy occurring in diabetic human and rat kidneys. Considering the role of GM3 ganglioside in kidney function, the aim of this study was to determine the difference in expression of GM3 ganglioside in glomeruli and tubules using immunofluorescence microscopy both in rat models of type 1 and type 2 diabetes mellitus. Diabetes was induced with streptozotocin (55 mg/kg for type 1 diabetes and 35 mg/kg for type 2 diabetes) injection to male Sprague-Dawley rats which were fed with normal pellet diet (type 1 diabetes) or high-fat diet (type 2 diabetes). Rats were sacrified two weeks after diabetes induction, frozen renal sections were stained with primary antibody GM3(Neu5Ac) and visualized by secondary antibody coupled with Texas-Red. In addition renal ganglioside GM3 were analysed by high performance thin layer chromatography followed by GM3 immunostaining. Immunofluorescent microscopy detected 1.7 fold higher GM3 expression in tubules and 1.25 fold higher GM3 in glomeruli of type 1 diabetes mellitus compared to control group. Type 2 diabetes mellitus rats showed slight GM3 increase in whole kidney, unchanged GM3 in glomeruli, but significant higher GM3 expression in tubules, compared to control animals. Taking into consideration increased tubular GM3 content in both types of diabetes, we could hypothesize the role of GM3 in early pathogenesis of diabetic nephropathy.
rat; diabetes mellitus; streptozotocin; kidney; GM3
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Podaci o izdanju
69 (4)
2013.
727-735
objavljeno
1138-7548
10.1007/s13105-013-0249-4
Povezanost rada
Temeljne medicinske znanosti, Farmacija