scholarly journals Circulating Advanced Oxidation Protein Products, Nε-(Carboxymethyl) Lysine and Pro-Inflammatory Cytokines in Patients with Liver Cirrhosis: Correlations with Clinical Parameters

10.5772/32553 ◽  
2012 ◽  
Author(s):  
Jolanta Zuwala-Jagiello ◽  
Eugenia Murawska-Cialowicz ◽  
Monika Pazgan-Simo
Keyword(s):  
Liver Cirrhosis ◽  
Inflammatory Cytokines ◽  
Advanced Oxidation ◽  
Clinical Parameters ◽  
Advanced Oxidation Protein Products ◽  
Carboxymethyl Lysine ◽  
Pro Inflammatory Cytokines

scholarly journals Elevated advanced oxidation protein products levels in patients with liver cirrhosis.

2009 ◽  
Vol 56 (4) ◽  
Author(s):  
Jolanta Zuwała-Jagiełło ◽  
Monika Pazgan-Simon ◽  
Krzysztof Simon ◽  
Maria Warwas
Keyword(s):  
Oxidative Stress ◽  
Liver Cirrhosis ◽  
Advanced Oxidation ◽  
Total Antioxidant Status ◽  
Meld Score ◽  
Stress Index ◽  
Serum Concentrations ◽  
Advanced Oxidation Protein Products ◽  
Decompensated Liver Cirrhosis ◽  
Total Antioxidant

Serum concentrations of advanced oxidation protein products (AOPPs) and glycation end products (AGEs) were assessed with respect to functional compromise of liver, as determined by the Child-Pugh and MELD scores. Patients with decompensated liver cirrhosis (Child-Pugh B and C) exhibited significantly higher serum concentrations of AOPPs than both patients with compensated liver cirrhosis (Child-Pugh A) and controls. The levels of plasma AGEs in all liver cirrhotic patients were higher when compared with those with the controls and this difference was statistically significant. Plasma total antioxidant status of the patients was significantly lower than that of controls. Significant positive correlations between AOPPs level and the MELD score and between the oxidative stress index and the MELD score were found in all patients with liver cirrhosis. Altered AOPPs levels in decompensated patients may influence the potency of oxidative stress and the progression of liver disease.

Advanced oxidation protein products and inflammatory markers in liver cirrhosis: a comparison between alcohol-related and HCV-related cirrhosis.

2011 ◽  
Vol 58 (1) ◽  
Author(s):  
Jolanta Zuwała-Jagiełło ◽  
Monika Pazgan-Simon ◽  
Krzysztof Simon ◽  
Maria Warwas
Keyword(s):  
Oxidative Stress ◽  
Liver Cirrhosis ◽  
Inflammatory Response ◽  
Chronic Inflammation ◽  
Inflammatory Markers ◽  
Antioxidant Defense ◽  
Early Stage ◽  
Plasma Concentrations ◽  
Advanced Oxidation ◽  
Advanced Oxidation Protein Products

Advanced oxidation protein products (AOPPs) are protein markers of oxidative stress with pro-inflammatory properties that accumulated in liver cirrhosis. In the present study, we investigated the association between chronic inflammatory response triggered by AOPPs and the severity of liver disease as assessed by the Child-Pugh score. Plasma concentrations of AOPPs and inflammatory markers such as C-reactive protein, tumor necrosis factor-α, and interleukin-6 were measured in 41 patients with HCV-related cirrhosis, 43 patients with alcohol-related liver cirrhosis (ALC), and in 30 age and sex matched controls. In comparison with controls, AOPPs were increased in HCV-related compensated (Child-Pugh A) and decompensated (Child-Pugh B-C) cirrhosis and in alcohol-related compensated cirrhosis. AOPPs level positively correlated with Child-Pugh score in alcohol-related cirrhosis but not in HCV-related cirrhosis and the correlation with the indices of chronic inflammation was stronger in ALC. In turn, AOPPs in HCV-related cirrhosis was related to inflammation to a lesser extent, but a significant correlation with antioxidant defense could be noted. In summary, liver cirrhosis was associated with increased formation of AOPPs, which differed between alcohol-related and HCV-related cirrhosis with respect to the relationship between AOPPs and antioxidant defense, stage of liver cirrhosis, and inflammatory response. The significant correlation between AOPPs accumulation and indices of chronic inflammation, more specifically TNF-α, suggests that oxidative stress may be a mediator of chronic inflammatory state in the early stage of alcohol-related cirrhosis.

Cytokine synergy, collagenases and cartilage collagen breakdown

2003 ◽  
Vol 70 ◽  
pp. 125-133 ◽  
Author(s):  
Tim E. Cawston ◽  
Jenny M. Milner ◽  
Jon B. Catterall ◽  
Andrew D. Rowan
Keyword(s):  
Matrix Metalloproteinases ◽  
Inflammatory Cytokines ◽  
Activator Protein 1 ◽  
Activator Protein ◽  
And Cartilage ◽  
Pro Inflammatory Cytokines

We have investigated proteinases that degrade cartilage collagen. We show that pro-inflammatory cytokines act synergistically with oncastatin M to promote cartilage collagen resorption by the up-regulation and activation of matrix metalloproteinases (MMPs). The precise mechanisms are not known, but involve the up-regulation of c-fos, which binds to MMP promoters at a proximal activator protein-1 (AP-1) site. This markedly up-regulates transcription and leads to higher levels of active MMP proteins.

Inhibition of Pro-Inflammatory Cytokine Secretion by Select Antioxidants in Human Coronary Artery Endothelial Cells

2020 ◽  
Vol 90 (1-2) ◽  
pp. 103-112 ◽  
Author(s):  
Michael J. Haas ◽  
Marilu Jurado-Flores ◽  
Ramadan Hammoud ◽  
Victoria Feng ◽  
Krista Gonzales ◽  
...  
Keyword(s):  
Endothelial Cells ◽  
Ascorbic Acid ◽  
Coronary Artery ◽  
Inflammatory Cytokines ◽  
Inflammatory Cytokine ◽  
Culture Media ◽  
Cytokine Secretion ◽  
Human Coronary Artery ◽  
Tnf Α ◽  
Pro Inflammatory Cytokines

Abstract. Inflammatory and oxidative stress in endothelial cells are implicated in the pathogenesis of premature atherosclerosis in diabetes. To determine whether high-dextrose concentrations induce the expression of pro-inflammatory cytokines, human coronary artery endothelial cells (HCAEC) were exposed to either 5.5 or 27.5 mM dextrose for 24-hours and interleukin-1β (IL-1β), interleukin-2 (IL-2), interleukin-6 (IL-6), interleukin-8 (IL-8), and tumor necrosis factor α (TNF α) levels were measured by enzyme immunoassays. To determine the effect of antioxidants on inflammatory cytokine secretion, cells were also treated with α-tocopherol, ascorbic acid, and the glutathione peroxidase mimetic ebselen. Only the concentration of IL-1β in culture media from cells exposed to 27.5 mM dextrose increased relative to cells maintained in 5.5 mM dextrose. Treatment with α-tocopherol (10, 100, and 1,000 μM) and ascorbic acid (15, 150, and 1,500 μM) at the same time that the dextrose was added reduced IL-1β, IL-6, and IL-8 levels in culture media from cells maintained at 5.5 mM dextrose but had no effect on IL-1β, IL-6, and IL-8 levels in cells exposed to 27.5 mM dextrose. However, ebselen treatment reduced IL-1β, IL-6, and IL-8 levels in cells maintained in either 5.5 or 27.5 mM dextrose. IL-2 and TNF α concentrations in culture media were below the limit of detection under all experimental conditions studied suggesting that these cells may not synthesize detectable quantities of these cytokines. These results suggest that dextrose at certain concentrations may increase IL-1β levels and that antioxidants have differential effects on suppressing the secretion of pro-inflammatory cytokines in HCAEC.

Saponins from saffron corms inhibit the secretion of pro-inflammatory cytokines at both protein and gene levels

2019 ◽  
Author(s):  
M Keller ◽  
S Fankhauser ◽  
N Giezendanner ◽  
M König ◽  
F Keresztes ◽  
...  
Keyword(s):  
Inflammatory Cytokines ◽  
Pro Inflammatory Cytokines
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