Assertion: primary osteoblast | /r/CapableOf | show prostaglandin e
Facets:
value: at early time points
type: TEMPORAL
Source sentences:
text: In response to the addition of proinflammatory cytokines interleukin-1β, tumor necrosis factor-α, and interferon-γ to the culture medium, primary osteoblasts showed increased production of nitric oxide (NO) and prostaglandin E 2 (PGE 2 ) at early time points and decreases in cell viability.