PMID: 15224800Jul 1, 2004Paper

Chronic kidney disease is associated with oxidative stress independent of hypertension

Clinical Nephrology
R Agarwal

Abstract

Oxidative stress is implicated in the pathogenesis of chronic kidney disease (CKD) and essential hypertension (EHTN). However, the role of hypertension in causing increased oxidative stress in patients with CKD is unknown. We performed a case control study in patients with EHTN and those with equal blood pressure assessed by ambulatory blood pressure monitoring but with concomitant CKD. Those with diabetes mellitus and those taking renin angiotensin inhibitors were excluded. Biomarkers of oxidative stress, malondialdehyde (MDA) and protein carbonylation and total glutathione levels were measured. Average (SD) 24-hour ambulatory blood pressure in 12 patients with CKD was 134 (17)/75 (16) compared to 134 (10)/80 (9) in 11 patients with EHTN (p = NS). Plasma MDA in CKD was 0.89 +/- 0.38 micromol/l compared to 0.68 +/- 0.16 micromol/l in EHTN (p = 0.07). Urinary MDA/creatinine ratio was 1.78 (0.31) in CKD vs 1.43 (0.69) micromol/g in those with EHTN (p = 0.04). Thus, lipid peroxidation was increased in urine of CKD patients. Patients with CKD had higher (1.04 (0.20) nmol) carbonyl/mg protein compared to those with EHTN (0.80 (0.21) nmol carbonyl/mg protein) (p = 0.03). Thus, protein carbonylation was increased in CKD patients. Tota...Continue Reading

Citations

Mar 4, 2008·The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences·Margaret Dayhoff-BranniganRichard D Semba
Jun 16, 2005·Current Opinion in Cardiology·Islam Bolad, Patrice Delafontaine
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