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

100%
Zuwała-Jagiełło J., Pazgan-Simon M., Simon K., Warwas M.
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2011
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vol. 58
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issue 1
59-65
EN
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.
2
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Elevated advanced oxidation protein products levels in patients with liver cirrhosis

100%
Zuwała-Jagiełło J., Pazgan-Simon M., Simon K., Warwas M.
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issue 4
679-685
EN
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.
3
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A biochemical study on the level of lipids and glycoproteins in the serum and platelets of liver cirrhotic bleeders

88%
Vijayalakshmi S., Geetha A., Jeyachristy S. A.
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2006
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vol. 53
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issue 1
213-220
EN
Bleeding complication and abnormal platelet functions are associated with liver cirrhosis. The aim of the present investigation was to assess the functional integrity of platelets in terms of lipids like cholesterol and phospholipids, glycoproteins and membrane-bound enzymes. Liver cirrhotic patients with bleeding complications were studied. Age and sex matched normal healthy volunteers were also involved in this study as a control group. Levels of cholesterol, phospholipids, glycoproteins and adenosine triphosphatases were assessed in isolated platelet membrane fraction. The level of glycoproteins and the activity of adenosine triphosphatases were found to be decreased significantly in cirrhotic patients. The cholesterol/phospholipid ratio was found to be altered significantly, indicating an alteration in the fluidity of platelet membrane. The results of this study reveal that the functional impairment of platelets in liver cirrhotic patients which is responsible for their bleeding tendency might also be due to altered lipid and enzyme levels in platelet membrane.
4
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The role of serum hyaluronic acid determination in the diagnosis of liver fibrosis

75%
Gudowska M., Cylwik B., Chrostek L.
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2017
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vol. 64
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issue 3
451-457
EN
The common pathway leading to liver fibrosis and cirrhosis is growing deposition of extracellular matrix (ECM). It results from molecular and histological rearrangement of collagens, glycoproteins and hyaluronans. Hyaluronic acid is a chief component of the extracellular matrix of connective tissues and plays the main structural role in the formation of ECM. The most important organ involved in the synthesis of hyaluronic acid is the liver. In this paper the meaning of hyaluronic acid in the diagnostics of liver diseases is discussed. Here, we focus on the described changes of hyaluronic acid concentration in the pathological processes of the liver, including alcoholic and non-alcoholic liver diseases. The results of published clinical studies have shown its high diagnostic sensitivity, which probably enables its application in laboratory diagnosis.
5
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Ocena jakości snu w odniesieniu do stężenia serotoniny i melatoniny w surowicy u osób z marskością wątroby

63%
Tomaszewska-Warda K., Walecka-Kapica E., Pawłowicz M., Wachowska-Kelly P., Chojnacki C.
Folia Medica Lodziensia
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2014
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vol. 41
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issue 2
169-180
EN
Sleep disorders occur in people who suffer from liver cirrhosis, this usually involves a change in the rhythm of melatonin secretion and its metabolism. Delayed sleep phase syndrome does not always correlate with the degree of liver damage, indicating the involvement of other factors in its pathogenesis. The aim of the study was to estimate the correlation between the night secretion of the serotonin and melatonin and the degree of sleep disorders. There were 60 patients with liver cirrhosis and 30 healthy subjects (control group) included in the study. Compared to the control group, in the first stage of hepatic encephalopathy (according to West Haven Scale) at 2 o’clock a.m. a low serum melatonin level was observed (57.5±10.2 pg/mL and 41.2±9.4 pg/mL, p<0.05) and even lower concentration of serotonin (171.2±45.0 and 108.4±29.3 μg/mL, p<0.01). These results negatively correlated with the degree of sleep disorders. The obtained results indicate that in patients with liver cirrhosis the changes in the homeostasis of both serotonin and melatonin occur, which can cause sleep disorders.
PL
U osób z marskością wątroby występują zaburzenia snu, co zwykle wiąże się ze zmianą rytmu wydzielania melatoniny i jej metabolizmu. Zespół opóźnionej fazy snu nie zawsze koreluje ze stopniem uszkodzenia wątroby, co wskazuje na udział innych czynników w jego patogenezie. Celem badania było określenie zależności między nocnym wydzielaniem serotoniny i melatoniny a stopniem zaburzeń snu. Do badań włączono 60 osób z marskością wątroby (grupa badana) i 30 osób zdrowych (grupa kontrolna). W porównaniu do grupy kontrolnej, u chorych z pierwszym stopniem encefalopatii wątrobowej (wg skali West Haven) o godzinie 2:00 stwierdzono niższe stężenie melatoniny w surowicy (odpowiednio 57,5±10,2 pg/mL i 41,2±9,4 pg/mL, p<0,05), zaś u osób z drugim stopniem encefalopatii - niższe stężenie serotoniny (odpowiednio 171,2±45,0 i 108,4±29,3
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