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Hyperhomocysteinemia – association with renal transsulfuration and redox signaling in rats
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Li Pin-Lan
Published/Copyright:
December 8, 2007
Abstract
Despite substantial evidence indicating the association of hyperhomocysteinemia (hHcys) and end-stage renal disease (ESRD), the pathogenic role of increased plasma homocysteine (Hcys) levels in the progression of ESRD remains unclear. This review will briefly summarize recent findings regarding the role of hHcys in the development of glomerulosclerosis, the association of hHcys with reduced renal transsulfuration and Hcys-induced changes of redox signaling in the development of glomerulosclerosis in rat kidneys. Based on these results, it is concluded that hHcys is implicated in glomerular sclerosis in hypertension, elevated plasma Hcys in Dahl salt-sensitive (SS) hypertensive rats is due to downregulation of cystathionine β-synthase (CBS) expression and consequent abnormality of transsulfuration in the kidney compared with normotensive rats. Hcys-induced superoxide (O2· –) production by activation of NADPH oxidase as a triggering mechanism contributes to the effects of Hcys on the homeostasis of extracellular matrix and consequent sclerosis in the glomeruli, and NADPH oxidase activation by Hcys is associated with enhanced Rac GTPase activity.
Clin Chem Lab Med 2007;45:1688–93.
Received: 2007-7-12
Accepted: 2007-9-21
Published Online: 2007-12-08
Published in Print: 2007-12-01
©2007 by Walter de Gruyter Berlin New York
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- Contents, Volume 45, 2007
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Articles in the same Issue
- Homocysteine research: alive and kicking!
- Homocysteine-lowering trials for prevention of vascular disease: protocol for a collaborative meta-analysis
- Perspective on the efficacy analysis of the Vitamin Intervention for Stroke Prevention trial
- Homocysteine-lowering vitamin B treatment decreases cardiovascular events in hemodialysis patients
- The role of hyperhomocysteinemia and B-vitamin deficiency in neurological and psychiatric diseases
- Management of L-Dopa related hyperhomocysteinemia: catechol-O-methyltransferase (COMT) inhibitors or B vitamins? Results from a review
- Biomarkers of folate and vitamin B12 status in cerebrospinal fluid
- The role of hyperhomocysteinemia as well as folate, vitamin B6 and B12 deficiencies in osteoporosis – a systematic review
- Homocysteine, brain natriuretic peptide and chronic heart failure: a critical review
- Homocysteine, left ventricular dysfunction and coronary artery disease: is there a link?
- Hyperhomocysteinemia and high-density lipoprotein metabolism in cardiovascular disease
- Hyperhomocysteinemia, DNA methylation and vascular disease
- Measuring subclinical atherosclerosis: is homocysteine relevant?
- Plasma protein homocysteinylation in uremia
- Homocysteine and asymmetric dimethylarginine (ADMA): biochemically linked but differently related to vascular disease in chronic kidney disease
- Hyperhomocysteinemia – association with renal transsulfuration and redox signaling in rats
- Metabolic regulatory properties of S-adenosylmethionine and S-adenosylhomocysteine
- Defects in homocysteine metabolism: diversity among hyperhomocyst(e)inemias
- The molecular basis of homocysteine thiolactone-mediated vascular disease
- Importance of folate-homocysteine homeostasis during early embryonic development
- Association between homocysteine, vitamin B6 concentrations and inflammation
- Quantitative profiling of folate and one-carbon metabolism in large-scale epidemiological studies by mass spectrometry
- Holotranscobalamin in laboratory diagnosis of cobalamin deficiency compared to total cobalamin and methylmalonic acid
- Haptocorrin in humans
- Small ubiquitin-like modifier-1 (SUMO-1) modification of thymidylate synthase and dihydrofolate reductase
- Decreased p66Shc promoter methylation in patients with end-stage renal disease
- Synergism between AT1 receptor and hyperhomocysteinemia during vascular remodeling
- Differential expression of γ-aminobutyric acid receptor A (GABAA) and effects of homocysteine
- The effect of B-vitamins on biochemical bone turnover markers and bone mineral density in osteoporotic patients: a 1-year double blind placebo controlled trial
- Acknowledgement
- Contents, Volume 45, 2007
- Author Index
- Subject Index
