text:  Nfkb1-/- _WB_rep2 Gastrocnemius and plantaris muscles from a Nfkb1-/- mice, weight bearing control strain: B6;129P2-Nfkb1tm1Bal/J; genotype: Nfkb1-/-; gender: male; tissue: gastrocnemius and plantaris muscles; internvention: weight bearing