Chemical Compounds, Antioxidant Activities, and Inhibitory Activities Against Xanthine Oxidase of the Essential Oils From the Three Varieties of Sunflower ( L.) Receptacles.

Essential oils of sunflower receptacles (SEOs) have antibacterial and antioxidant potential. However, the differences of biological activities from the different varieties of sunflowers have not been studied till now. The purpose of this study was to compare the differences of chemical compounds, antioxidant activities, and inhibitory activities against xanthine oxidase (XO) of SEOs from the three varieties of sunflowers including LD5009, SH363, and S606.

Protective effect of Phaeoporus obliquus polysaccharide against acute liver injury induced by carbon tetrachloride and alcohol in mice.

Studied the optimum extraction process of polysaccharide from Phaeoporus obliquus and the effect of Phaeoporus obliquus polysaccharide on carbon tetrachloride (CCl)- or alcohol-induced acute liver injury in mice. The main factor in influencing the extraction rate of Phaeoporus obliquus polysaccharide were extraction power and time, which was a kind of pyran glucose by infrared spectroscopy. CCl and alcohol were employed respectively to establish CCl4 and alcohol-induced acute liver injury mouse models.

Chemical Composition and Antimicrobial and Antioxidant Activities of Essential Oil of Sunflower ( L.) Receptacle.

Sunflower ( L.) contains active ingredients, such as flavonoids, alkaloids and tannins. Nevertheless, few studies have focused on essential oil from the receptacle of sunflower (SEO).

Identification of key genes associated with the effect of estrogen on ovarian cancer using microarray analysis.

Purpose: To identify key genes related to the effect of estrogen on ovarian cancer.

Methods: Microarray data (GSE22600) were downloaded from Gene Expression Omnibus. Eight estrogen and seven placebo treatment samples were obtained using a 2 × 2 factorial designs, which contained 2 cell lines (PEO4 and 2008) and 2 treatments (estrogen and placebo).

An extract of Perilla stem inhibits Src homology phosphatase-1 (SHP)-1 and influences insulin signaling.

Protein tyrosine phosphatases (PTPs) are enzymes that catalyze protein tyrosine dephosphorylation of which Src homology phosphatase-1 (SHP-1) is one of the best-validated, a widely distributed intracellular tyrosine phosphatase that contains two SH2 domains. Down regulation of SHP-1 tyrosine phosphatases was significantly increased sensitivity to insulin in insulin signaling pathway. Through in vitro enzymatic reaction kinetics experiment, we found that the extract of Perilla stem was a potential inhibitor to δSHP-1, the catalytic domain of SHP-1 protein tyrosine phosphatase, and its IC(50) was 4ug/ml, and was more sensitive towards SHP-1than other PTPs, which indicated that SHP-1 might be a target of the extract of Perilla stem.

Epigallocatechin-3-gallate (EGCG) inhibits 3-hydroxy-3-methylglutaryl-CoA reductase in the presence of glycerol.

The inhibition of 3-hydroxy-3-methylglutaryl CoA reductase (HMGCR) is considered able to decrease serum cholesterol levels and dramatically reduce the risk for cardiovascular and cerebrovascular diseases. The statins, competitive inhibitors of HMGCR, have been employed to control hypercholesterolemia. But their side effects, especially their safety of long-term administration have attracted great attention.

Synthesis of silane surface modified ZnO quantum dots with ultrastable, strong and tunable luminescence.

Surface modified ZnO quantum dots (QDs) with ultrastable, strong and tunable luminescence have been successfully prepared via silanization during the growth process by (3-(2,3-epoxypropoxy)propyl)trimethoxysilane. The as-prepared ZnO QDs are demonstrated to be promising for anti-counterfeit applications in expensive high-end liquors, etc.