[Comparative Characteristics of Optical Absorption in Waters from Yiluo River and Huntai River in Spring].

The absorption characteristics, composition, spatial variability, and relative contribution of optically active constituents over the range of photosynthetically active radiation (PAR, 400-700 nm) were analyzed from samples collected in the Yiluo and Huntai Rivers in May 2017 and 2013, respectively. Results demonstrated that the absorption curves of total suspended particulates[()] were similar to those of non-algae particles[()]. Significant correlations between () and () were obtained, especially at 440 nm, with =0.

[Seasonal changes of optical absorption properties of river and lake in East Liaohe River basin, Northeast China].

The absorption characteristics of optically active constituents (OACs) in water column are important optical properties and basic parameters of establishing the inverse analysis model. Comparative analyses about seasonal variability of the optical absorption characteristics (phytoplankton, non-algal particles and chromophoric dissolved organic matter absorption characteristics) and water quality status of East Liaohe River basin were conducted based on the water samples in Erlong-hu Reservoir collected in June, September and October of 2011 and samples in East Liaohe River in October of 2012. The results demonstrated that the eutrophication status of Erlonghu Reservoir was lower in June, eutrophic in September and moderately eutrophic in October.

[Effects of fractalkine on the expression of inflammatory substances in LPS-activated microglia cells].

Aim: To investigate the effect of fractalkine on the expression of the tumor necrosis factor-α(TNF-α), interleukin-1β (IL-1β), and nitric oxide (NO) in LPS-activated murine microglia cells line N9.

Methods: In vitro LPS-activated microglia cells were treated for 24 h in the presence of fractalkine. The level of TNF-α and IL-1β in the culture supernatants were measured by enzyme-linked immunosorbent assay (ELISA), The level of NO in the culture supernatants were quantitated by the NO test assay.

Virulence of water-induced coccoid Helicobacter pylori and its experimental infection in mice.

Aim: To explore the virulence and the infectivity of coccoid Helicobacter pylori (H. pylori) transformed from spiral form by exposure to sterile tap water.

Methods: Three strains of H.