Compostions and methods for diagnosis of axial pain with or without radiculopathy

The invention provides methods and composition developed to be used with imaging techniques and useful for diagnosis and monitoring the pain generator(s) of axial pain with or without radiculopathy and methods for screening therapeutic compounds potentially useful for treating axial pain with or without radiculopathy. Alternatively, degenerated discs can be monitored and treated before occurrence of a pathological pain condition. Pain markers and markers of degeneration include markers of neuronal, vascular, immune and matrix elements.