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R.F. Silva

Publications of : R.F. Silva
Plant Genetics   Research Article

Antioxidant activity and chemical composition of oleoresin from leaves and flowers of Brunfelsia uniflora

In this study, the temperature and pressure of supercritical CO2 extraction were evaluated to obtain oleoresin of Brunfelsia uniflora leaves and flowers. The oleoresin compounds were identified by gas chromatography-mass spectrometry. The antioxidant activity was evaluated by three different methods. The highest oleoresin yields were 3.32% at 40°C and 200 bar fo.. Read More»

Genet. Mol. Res. 16(3): gmr16039714

DOI: 10.4238/gmr16039714

Medical Genetics   Research Article

Influence of vascular endothelial growth factor and alpha-fetoprotein on hepatocellular carcinoma

    E.Y. Yvamoto, R.F. Ferreira, V. Nogueira, M.A.S. Pinhel, G.D. Tenani, J.G.S.C. Andrade, M.E.L. Baitello, M.L. Gregório, P.S. Fucuta, R.F. Silva, D.R.S. Souza and R.C.M.A. Silva

We evaluated the influence of the vascular endothelial growth factor (VEGF) -C936T polymorphism on prognosis of hepatocellular carcinoma (HCC), cirrhosis, and hepatitis C virus (HCV) infection. Serum VEGF and alpha-fetoprotein (AFP) levels were determined and used to characterize sensitivity and specificity. A total of 285 subjects were studied: 68 HCC, 118 cirrhosis, 43 HCV, and 56 healthy con.. Read More»

Genet. Mol. Res. 14(4): 2015.December.21.16

DOI: 10.4238/2015.December.21.16