
Age-related changes of CD4+ T cell migration and cytokine expression in germ-free and SPF mice periodontium
Keywords: CCL5; C-C chemokine ligand 5; IL; interleukin; RANKL; receptor activator of nuclear factor-kappa B ligand; GF; germ free; SPF; specific pathogen free; CT; computed tomography; MRS; de Man Rogosa and sharpe; BV; bone volume; TV; total volume; Tb.Th; trabec