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Cytochrome P450 (CYP450) genes play an important role in catalyzing oxidative metabolism of toxicants. Recently, CYP1 subfamily were discovered and reported in fish, however, little is known regarding the CYP2 isoforms in fish. In the present study, the cDNA fragments of CYP 1B1 and 1C1 and CYP2Aa, 2Y3, and 2K of rare minnow were cloned and exhibited a high… (More)
PURPOSE To establish a prognostic index model for advanced pancreatic cancer patients receiving palliative chemotherapy based on clinical variables. METHODS The clinical data of 118 patients with advanced pancreatic cancer who received palliative chemotherapy between January 2006 and August 2013 in our center were retrospectively analyzed. Prognostic… (More)
The existence of positive periodic solutions of discrete nonautonomous Lotka-Volterra systems with delays is studied by applying the continuation theorem of coincidence degree theory.
Viscoelastic behavior of a solution boundary layer at a solid-liquid interface could differ from that of bulk solution due to molecular adsorption at the interface. Such a property can be used as a characteristic signature to indicate the molecular adsorption at the interface. In this work, we systematically measured the viscoelastic properties of… (More)
Acute lung injury (ALI) is a severe disease, leading to death if not treated quickly. An emergency medicine is necessary for ALI therapy. Dimethyl silicone (DMS) is an effective agent to defoam the bubbles in the lung induced by ALI. However, DMS aerosols, a marketed formulation of DMS, affect environments and will be limited in the future. Here we firstly… (More)
Benzotriazole (BT), an anticorrosive agent, is widely used in industrial applications and household dishwashing agents. Despite its reported toxicity to aquatic organisms, little is known about its endocrine disrupting effects. In this study, adult Chinese rare minnows (Gobiocypris rarus) were exposed to 0.05, 0.5, and 5 mg L(-1) BT for 28 d. The… (More)
We study the existence and exponential attractivity of periodic solutions to Cohen-Grossberg neural network with distributed delays. Our results are obtained by applying the continuation theorem of coincidence degree theory and a general Halanay inequality.