To investigate the inhibition effect of oxymatrine induces human lung cancer A549 cells apoptosis. The A549 cells were cultured for 24 h, than the various concentration of oxymatrine (2 mmol/L, 4 mmol/L, 8 mmol/L, 15 mmol/L) were added into different experimental group cells, and 5-fluorouracil were added into the positive control group cells for 12 h, 24 h, 36 h, 48 h respectively. The A549 ce...

Sediment bacteria play important roles in the biogeochemistry of ocean sediments; however, factors influencing assemblage composition have not been extensively studied. We examined extractable sediment bacterial abundance, the composition of bacterial assemblages using a high-throughput molecular fingerprinting approach, and several sediment biogeochemical parameters (organic matter content and...

Understanding the effects of metal contamination in the Amazon basin is important because of the potential impact on this region of high biodiversity. In addition, the significance of fish as the primary source of protein for the local human population (living either alongside the Amazon River or in the city of Manaus) highlights the need for information on the metal transfer through the food c...

Based on seven measured sections from Svalbard, the marine strata of the Permian Kapp Starostin Formation are arranged into seven transgressive–regressive sequences (TR1–TR7) of c. 4– 5 Ma average duration, each bound by a maximum regressive surface. Facies, including heterozoandominated limestones, spiculitic cherts, sandstones, siltstones and shales, record deposition within inner, middle and...

conclusions the serum levels of il-17, but not il-8 and il-18 may serve as a potential biomarker for diagnosis and predicting the prognosis of gastritis caused by h. pylori. objectives the current study aimed to obtain evidence regarding the association between il-17, il-8 and il-18 expression in peripheral blood and h. pylori infection in mongolian gerbils. materials and methods mongolian gerb...

A shallow site in the western arm of Lake Superior near Duluth, Minnesota was sampled bimonthly from May to October during 1989 and 1990 to identify seasonal and annual changes in bacterioplankton communities. The greatest change in bacterioplankton abundance was between 1989 (1.48 × 109/L ± 0.06 SE) and 1990 (1.14 × 109/L ± 0.06 SE). The majority of bacterial cells (65%) were cocci. Individual...

An in vivo assay using the cytochrome P450 (P450) suicide inhibitor 1-aminobenzotriazole (ABT) and 24-h food intake was developed to determine the relative importance of P450s in two populations of Neotoma lepida with respect to biotransformation of plant secondary compounds in the animals' natural diets. The efficacy of ABT as a P450 inhibitor was first validated using hypnotic-state assays wi...

In the austral summer of 2011 we undertook an investigation of three volcanic highs in the Central Bransfield Basin, Antarctica, in search of hydrothermal activity and associated fauna to assess changes since previous surveys and to evaluate the extent of hydrothermalism in this basin. At Hook Ridge, a submarine volcanic edifice at the eastern end of the basin, anomalies in water column redox p...