porosity is considered as an important petrophysical parameter in characterizing reservoirs, calculating in-situ oil reserves, and production evaluation. nowadays, using intelligent techniques has become a popular method for porosity estimation. support vector machine (svm) a new intelligent method with a great generalization potential of modeling non-linear relationships has been introduced fo...

For patients with chronic hepatitis C virus infection, the goal of antiviral therapy is to achieve a sustained virologic response (SVR). We review the durability of the SVR and its effects on liver-related mortality, hepatic decompensation, and the development of hepatocellular carcinoma. We performed a systematic review of the effects of the SVR on liver-related hepatic outcomes and found the ...

OBJECTIVE To establish the role of liver fibrosis as a predictive tool of response to pegylated interferon alpha (Peg-IFN) and ribavirin (RBV) treatment in human immunodeficiency (HIV)/hepatitis C virus (HCV) coinfected patients, in addition to recognized predictive factors (HCV load, HCV genotype, IL-28B polymorphism). PATIENTS AND METHODS A sample of 267 HIV/HCV coinfected patients was trea...

BACKGROUND Liver fibrosis remains one of the most important predictors of sustained virological response (SVR) in this era of direct-acting antiviral treatment of chronic hepatitis C. We compare non-invasive fibrosis assessment with liver biopsy (METAVIR) in terms of their ability to predict SVR by telaprevir (TVR)-based triple therapy. METHODS This prospective study consisted of 108 patients...

BACKGROUND Inflammatory gene expression in peripheral blood mononuclear cells (PBMCs) is altered in chronic Hepatitis C Virus (HCV) infection. Duration of changes after pegylated interferon- (peg-IFN-) based HCV treatment is unclear. METHODS PBMC mRNA expression of 184 inflammatory response genes was analyzed (nCounter GX Human Inflammation Kit, Nanostring) from peg-IFN treatment nonresponder...

BACKGROUND/AIMS The reappearance rates of hepatitis C virus (HCV) RNA after a sustained virological response (SVR) have been reported to be 1-2%. We investigated the reappearance rate of HCV RNA after SVR in chronic hepatitis C (CHC) patients treated with pegylated interferon (PEG-IFN) and ribavirin. METHODS In total, 292 CHC patients who achieved an SVR after PEG-IFN and ribavirin treatment ...

BACKGROUND The effect of peginterferon and ribavirin treatment on chronic hepatitis C virus (HCV) infection has been established in several controlled clinical studies. However, the effectiveness of treatment and predictors of treatment success in routine clinical practice remains to be established. Our aim was to estimate the effectiveness of peginterferon and ribavirin treatment in unselected...

Background/Aims No clinical model exists to predict the occurrence of hepatocellular carcinoma in sustained virologic response-achieving (HCC after SVR) patients with chronic hepatitis C (CHC). Methods We performed a case-control study using a clinical database to research the risk factors for HCC after SVR. A predictive model based on risk factors was established, and the area under the rece...

Approximately 130 to 150 million people are chronically infected with hepatitis C virus (HCV) in the world. HCV infection is a major cause of chronic hepatitis, liver cirrhosis and hepatocellular carcinoma (HCC). The existence of hepatitis C— originally identifiable only as a type of non-A, non-B hepatitis— was suggested in the 1970s and proven in 1989. In the treatment of chronic hepatitis C (...

In the process industry on-line spectroscopic methods, like Raman and Near Infrared (NIR), in combination with regression tools are increasingly used to measure quality characteristics of products, e.g. concentrations of chemical constituents. One of the most widely used regression techniques is Partial Least Squares (PLS) and a relatively new, not yet widely used, technique is Support Vector R...