intervertebral disc nucleus pulposus 2 Animals 1 C57BL mouse 1 Intervertebral Disc 1 Intervertebral Disc Degeneration 1 Lumbar Vertebrae 1 Mice 1 Mice, Inbred C57BL 1 Nucleus Pulposus 1 Tail 1 age-related changes 1 animal 1 animal models 1 endplate 1 heparan sulfate proteoglycan 1 intervertebral disk 1 intervertebral disk degeneration 1 lumbar vertebra 1 mechanotransduction 1 mouse 1 osmotic 1 pathology 1 pericellular matrix 1 spinal column 1 tail 1 vertebral body 1 vertebral column 1