1. |
- Caglar, K, et al.
(författare)
-
Serum fetuin-a concentration and endothelial dysfunction in chronic kidney disease
- 2008
-
Ingår i: Nephron. Clinical practice. - : S. Karger AG. - 1660-2110. ; 108:3, s. C233-C240
-
Tidskriftsartikel (refereegranskat)abstract
- <i>Background:</i> Defective endothelial function, an initial step in the development of atherosclerotic plaque, is prevalent in moderate to advanced chronic kidney disease (CKD). In this study, the investigators hypothesized that fetuin-A, a calcification inhibitor, is a novel risk factor for the development of endothelial dysfunction in patients. <i>Methods:</i> 198 nondiabetic patients with a mean age of 44.0 ± 12.4 years and with different stages of CKD were studied. In addition to a detailed metabolic panel, flow-mediated dilatation assessed by high-resolution brachial ultrasonography was performed to determine endothelial dysfunction. Carotid intima-media thickness was also estimated by ultrasonography. Serum fetuin-A concentrations were determined by using a human ELISA method. <i>Results:</i> Endothelial dysfunction was observed in all stages (1–5) of CKD and worsened in parallel to the reduction in estimated glomerular filtration rate. Serum fetuin-A concentrations were also found to be decreased in all but stage 1 CKD. On multiple regression analysis, endothelial dysfunction was independently associated with fetuin-A (β = 0.745, p < 0.001) and intact parathyroid hormone concentrations (β = –0.216, p < 0.001). <i>Conclusion:</i> These data in a selected cohort of CKD patients indicate that fetuin-A may be one of the contributing factors for the development of endothelial dysfunction in CKD patients.
|
|
2. |
|
|
3. |
|
|
4. |
|
|
5. |
|
|
6. |
|
|
7. |
|
|
8. |
|
|
9. |
|
|
10. |
- Yilmaz, MI, et al.
(författare)
-
Improving proteinuria, endothelial functions and asymmetric dimethylarginine levels in chronic kidney disease: ramipril versus valsartan
- 2007
-
Ingår i: Blood purification. - : S. Karger AG. - 1421-9735 .- 0253-5068. ; 25:4, s. 327-335
-
Tidskriftsartikel (refereegranskat)abstract
- <i>Background:</i> The aim of this study was to find out whether the beneficial effects of the renin-angiotensin-aldosterone system (RAS) blockage in chronic kidney disease (CKD) has any relation with the alteration of asymmetric dimethylarginine (ADMA) levels. <i>Methods:</i> Sixty-six nondiabetic patients with CKD and proteinuria and 36 healthy subjects were enrolled. Patients were treated with either ramipril 5 mg daily or valsartan 160 mg daily for 3 months. Proteinuria, ADMA, symmetric dimethyl arginine (SDMA), flow-mediated dilatation (FMD) and HOMA index measurements were performed both before and after the treatment. <i>Results:</i> ADMA, SDMA, hsCRP levels, HOMA index and proteinuria of patients were significantly higher (p < 0.001 for all) and FMD, <i>L</i>-arginine and <i>L</i>-arginine/ADMA ratio in CKD were significantly lower than controls. According to the multiple regression analysis, proteinuria levels were independently related to ADMA and SDMA levels. <i>Conclusion:</i> Both drugs were equally effective in reducing elevated ADMA levels and improving endothelial dysfunction in CKD patients.
|
|
11. |
|
|
12. |
- Yilmaz, MI, et al.
(författare)
-
Predictors of carotid artery intima-media thickness in chronic kidney disease and kidney transplant patients without overt cardiovascular disease
- 2010
-
Ingår i: American journal of nephrology. - : S. Karger AG. - 1421-9670 .- 0250-8095. ; 31:3, s. 214-221
-
Tidskriftsartikel (refereegranskat)abstract
- <i>Background/Aims:</i> Carotid intima-media thickness (IMT) assessed using ultrasonography is a widely used marker of atherosclerosis. In the largest study to date of IMT and chronic kidney disease (CKD), we assessed correlates of IMT in CKD patients with a wide range of renal dysfunction, and also investigated what happens to IMT following renal transplantation. <i>Methods:</i> We studied 406 patients with different stages of nondiabetic CKD (50% males, 46 ± 12 years), and 58 kidney transplant recipients (27 ± 6 years), testing relationships between IMT, assessed by ultrasonography, and selected biomarkers. <i>Results:</i> Despite a lack of overt CVD, patients had significantly higher IMT as compared to controls (0.9 [0.7–1.0] vs. 0.6 [0.4–0.7] mm; p > 0.001). Furthermore, in multivariate analysis IMT was independently associated with CKD stage, mean arterial pressure (MAP) and calcium-phosphate product, but not with Framingham risk factors. Following kidney transplantation, IMT decreased rapidly, reaching levels comparable to those in the controls within 90 days. In a time-dependent multivariate analysis, this decrease was predicted by changes in GFR, MAP, and uric acid levels. <i>Conclusion:</i> Our data does not exclude IMT as a predictor of mortality in CKD, but suggests that other etiologies than atherosclerosis may be more important in determining IMT levels in the population with CKD.
|
|
13. |
|
|
14. |
|
|
15. |
|
|
16. |
|
|
17. |
|
|