[Ecological adaptability of leaf epidermis of erosion-resistant plants in hilly-gully area of Loess Plateau, Northwest China].

By the temporary slide method of leaf epidermis, an observation was made on the morphological characteristics of the leaf epidermis of six erosion-resistant plant species in different soil erosion environments (gully, inter-gully, and inter-gully artificial Robinia pseudoacacia forest land) in hilly-gully area of Loess Plateau. Compared with those in the gully, the stomata aperture, stomata density, stomata index, stomata apparatus length/width plasticity, stomata apparatus area plasticity, epidermal hair density, and epidermal cell density of the leaf upper and lower epidermis of the plants in the inter-gully were 93.8% and 90.

[The changes in secretory function of pulmonary intravascular macrophages after challenge of lipopolysaccharide].

Objective: To investigate the role of pulmonary intravascular macrophages (PIMs) in the pathogenesis of acute lung injury (ALI) due to infection.

Methods: Porcine pulmonary blood vessels were flushed by modified Morton method, and PIMs were isolated and cultured. The adhered PIMs were collected with adhesion method and incubated in RPMI 1640 medium.

[Changes in inflammatory cytokines released by pulmonary intravascular macrophages after stimulation with lipopolysaccharide].

Objective: To investigate the roles of pulmonary intravascular macrophages (PIMs) in the pathogenesis of infective acute lung injury (ALI).

Methods: Porcine pulmonary blood vessels were flushed by modified Morton's method, PIMs were isolated with adhesion method and incubated in RPMI 1640 medium. They were stimulated with lipopolysaccharide (LPS, 10 mg/L).