Heterozygous deficiency of Aggrecan (proteoglycan w/in cartilage) gene: manifests as inherited short stature, early-onset osteoarthritis, degenerative disc disease, osteochondritis dissecans, increasing joint pathology over time https://t.co/dQERowhrba https://t.co/q7a38FGEzb https://t.co/TPQmnGPoDw