Editing C-reactive protein (section)

===Normal===
In healthy adults, the normal concentrations of CRP varies between 0.8&nbsp;mg/L and 3.0&nbsp;mg/L. However, some healthy adults show elevated CRP at 10&nbsp;mg/L. CRP concentrations also increase with age, possibly due to [[subclinical]] conditions. There are also no [[seasonal variation]]s of CRP concentrations. [[Gene polymorphism]] of [[interleukin-1 family]], [[interleukin 6]], and polymorphic GT repeat of the CRP gene do affect the usual CRP concentrations when a person does not have any medical illnesses.<ref name=Pepys/>