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RhoA distribution in renal caveolar fractions in experimental type 1 diabetes
Demová H, Černá M.
Language English Country Czech Republic
Document type Research Support, Non-U.S. Gov't
NLK
Free Medical Journals
from 2000
Freely Accessible Science Journals
from 2000
ProQuest Central
from 2005-01-01
Health & Medicine (ProQuest)
from 2005-01-01
ROAD: Directory of Open Access Scholarly Resources
from 2000
- MeSH
- Angiotensin Receptor Antagonists therapeutic use MeSH
- Diabetes Mellitus, Type 1 drug therapy metabolism MeSH
- Diabetes Mellitus, Experimental drug therapy metabolism MeSH
- Immunoprecipitation MeSH
- Caveolin 1 metabolism MeSH
- Caveolae metabolism MeSH
- Rats MeSH
- Losartan therapeutic use MeSH
- Random Allocation MeSH
- Rats, Wistar MeSH
- rhoA GTP-Binding Protein metabolism MeSH
- Blotting, Western MeSH
- Animals MeSH
- Check Tag
- Rats MeSH
- Male MeSH
- Animals MeSH
- Publication type
- Research Support, Non-U.S. Gov't MeSH
Caveolae act as signalling platforms serving as concentrating points for numerous signalling molecules, as well as regulating flux through many distinct signalling cascades. RhoA proteins have been identified as potential actors in the pathophysiology of the cardiovascular system. We used sucrose gradient fractionation and immunoblotting to determine caveolin-1 and RhoA presence in the kidney cortex of streptozotocin-induced T1 diabetes rats (4-week duration), and of diabetic rats treated with angiotensin receptor blocker losartan (4 weeks, 20 mg/kg/day) to retard renal hypertension. Positive RhoA/caveolin-1 co-immunoprecipitation result was detected in the caveolar fraction that corresponded to the light-scattering band obtained from diabetic rats, compared to negative co-immunoprecipitation result in the caveolar fraction obtained from control rats. The detection of RhoA protein in the caveolar fractions and the prospective RhoA/caveolin-1 association can be used to examine the role of these signalling reactions in the pathophysiology of microvascular complications in type 1 diabetes
Literatura
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- $a Demová, Hana $7 xx0115679 $u Diabetes Center, Institute for Clinical and Experimental Medicine, Prague
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- $a Caveolae act as signalling platforms serving as concentrating points for numerous signalling molecules, as well as regulating flux through many distinct signalling cascades. RhoA proteins have been identified as potential actors in the pathophysiology of the cardiovascular system. We used sucrose gradient fractionation and immunoblotting to determine caveolin-1 and RhoA presence in the kidney cortex of streptozotocin-induced T1 diabetes rats (4-week duration), and of diabetic rats treated with angiotensin receptor blocker losartan (4 weeks, 20 mg/kg/day) to retard renal hypertension. Positive RhoA/caveolin-1 co-immunoprecipitation result was detected in the caveolar fraction that corresponded to the light-scattering band obtained from diabetic rats, compared to negative co-immunoprecipitation result in the caveolar fraction obtained from control rats. The detection of RhoA protein in the caveolar fractions and the prospective RhoA/caveolin-1 association can be used to examine the role of these signalling reactions in the pathophysiology of microvascular complications in type 1 diabetes
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