[Effects of mixed broadleaved tree species with pure plantation on soil microbial necromass carbon and organic carbon fractions].

Mixing native broadleaved tree species is a widely used method for renovating plantations. Soil microbial necromass carbon and organic carbon fractions are important parameters for evaluating the impacts of tree species mixing and soil organic carbon (SOC) stability. However, their responses to the mixing and renovation of plantation has not been understood yet.

[Spatial distribution patterns and association of Loropetalum chinense population in karst hills of Guilin, Southwest China].

The spatial distribution and association of populations can reflect succession patterns and its adaptation strategies to the change of environmental factors, with important significance for vegetation restoration, reconstruction, and biodiversity conservation. We used the point-pattern analytical method to examine the spatial distribution and its association of the Loropetalum chinense population in karst hills of Guilin, China, based on field surveys. On the basis of Ripley K function, we used the pair-correlation function statistic derived to explore difference in the distribution patterns.

Niche of main woody plant populations of Pterocarya stenoptera community in riparian zone of Lijiang River, China.

To understand the niche characteristics of main woody species in Pterocarya stenoptera community, we investigated P. stenoptera communities in riparian zone of Lijiang River, China. The niche characteristics of main species in tree layers and shrub layers were quantified with the indices of Levins niche breadth, Shannon niche breadth, Schoener niche similarities and Pianka niche overlap.

[Immunoregulatory mechanisms of an optimal Chinese herbal monomer compound in mice with allergic rhinitis].

Objective: To study the immunoregulatory effect of an optimal Chinese herbal monomer compound, which consists of three monomers, namely, icariin, baicalin and Astragalus saponin I, in a mouse model of allergic rhinitis.

Methods: A mouse model of allergic rhinitis was established by intraperitoneal injection of ovalbumin and aluminum hydroxide gel suspension. The splenic lymphocytes of the mice were separated, cultured in 96-well plates and divided into three groups: control group, concanavalin A group and compound group.

[Optimal combination of baicalin, icariin and Astragalus saponin I from a Chinese herbal compound Biminne].

Objective: To study the optimal combined ratio of baicalin, icariin and Astragalus saponin I from a Chinese herbal compound Biminne.

Methods: Firstly, a mouse model of allergic rhinitis was established by intraperitoneal injection of ovalbumin (OVA) and aluminum hydroxide gel suspension, and the effective dose range of baicalin, icariin and Astragalus saponin I was detected by 2,3-bis(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide inner salt method. Secondly, 10 groups of combinations of baicalin, icariin and Astragalus saponin I assembled by U(10)(10(8)) form were employed to determine the optimal combination by means of analyzing of the inhibitory effect on the splenocyte proliferation.

Effects of Chinese herbal formula Biminne in regulating endocrine-immune function in mice with airway allergy.

Objective: To investigate the effects of Biminne, a traditional Chinese herbal formula, in regulating the endocrine-immune function in mice with airway allergy.

Methods: Forty BALB/c mice were randomly divided into four groups: control group, untreated group, Biminne group, and dexamethasone (Dex) group. The murine model of airway allergy was established by intraperitoneal injection sensitization and intranasal challenge with ovalbumin (OVA).

[Study on mechanism of biminne in treating allergic rhinitis].

Objective: To investigate the effect and mechanism of Biminne, a Chinese herbal compound preparation, for treatment of allergic rhinitis (AR).

Methods: AR model of mouse was induced by intraperitoneal injection of ovalbumin (OVA), and the changes in behavior, proliferative activity of splenic lymphocyte, serum levels of total IgE and OVA specific IgE were observed.

Results: Biminne showed effects in reducing the frequency of sneezing and nasal rubbing, inhibiting the proliferation of splenic lymphocyte stimulated by phyto-hemagglutinin (PHA) and OVA, and lowering the levels of serum total IgE and OVA specific IgE.