[Effects of total paeony glucosides on mRNA expressions of Toll receptors and interleukin-33 in the brain tissue of D-galactose induced aging rats: an experimental research].

Objective: To investigate effects of total paeony glucosides (TPGs) on the expressions of Toll receptors (TLR4) and interleukin-33 (IL-33) in the brain tissue of D-galactose-induced aging rats. METHODS; Fifty SD rats were randomly divided into 5 groups, i.e.