tokens: A major mechanism by which estrogens prevent osteoporosis seems to be repression of transcription of NF-kappa B target genes , such as the osteoclast activating cytokines interleukin-6 and interleukin-1 .
folded_tokens: a major mechanism by which estrogen prevent osteoporosis seem to be repression of transcription of nf-kappa b target gene , such as the osteoclast activate cytokine interleukin-6 and interleukin-1 .