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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Cell+Mol+Med
2011 ; 15
(6
): 1339-54
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The carbonyl scavenger carnosine ameliorates dyslipidaemia and renal function in
Zucker obese rats
#MMPMID20518851
Aldini G
; Orioli M
; Rossoni G
; Savi F
; Braidotti P
; Vistoli G
; Yeum KJ
; Negrisoli G
; Carini M
J Cell Mol Med
2011[Jun]; 15
(6
): 1339-54
PMID20518851
show ga
The metabolic syndrome is a risk factor that increases the risk for development
of renal and vascular complications. This study addresses the effects of chronic
administration of the endogenous dipeptide carnosine (?-alanyl-L-histidine,
L-CAR) and of its enantiomer (?-alanyl-D-histidine, D-CAR) on hyperlipidaemia,
hypertension, advanced glycation end products, advanced lipoxidation end products
formation and development of nephropathy in the non-diabetic, Zucker obese rat.
The Zucker rats received a daily dose of L-CAR or D-CAR (30 mg/kg in drinking
water) for 24 weeks. Systolic blood pressure was recorded monthly. At the end of
the treatment, plasma levels of triglycerides, total cholesterol, glucose,
insulin, creatinine and urinary levels of total protein, albumin and creatinine
were measured. Several indices of oxidative/carbonyl stress were also measured in
plasma, urine and renal tissue. We found that both L- and D-CAR greatly reduced
obese-related diseases in obese Zucker rat, by significantly restraining the
development of dyslipidaemia, hypertension and renal injury, as demonstrated by
both urinary parameters and electron microscopy examinations of renal tissue.
Because the protective effect elicited by L- and D-CAR was almost superimposable,
we conclude that the pharmacological action of L-CAR is not due to a
pro-histaminic effect (D-CAR is not a precursor of histidine, since it is stable
to peptidic hydrolysis), and prompted us to propose that some of the biological
effects can be mediated by a direct carbonyl quenching mechanism.
|Administration, Oral
[MESH]
|Albumins/analysis
[MESH]
|Animals
[MESH]
|Blood Glucose/analysis
[MESH]
|Blood Pressure/drug effects
[MESH]
|Carnosine/*pharmacology/therapeutic use
[MESH]
|Cholesterol/blood
[MESH]
|Creatinine/urine
[MESH]
|Free Radical Scavengers/*pharmacology/therapeutic use
[MESH]
|Glycation End Products, Advanced/blood/urine
[MESH]