approaching significanceP = .06
None of the trends (linear, quadratic, or cubic) were significant (alpha = .05), though Figure 6 D suggests a positive linear increase in gene expression over time with a t value approaching significance (t = 1.9, P = .06, eta‐square = 0.94). 4 DISCUSSION The method described herein allows multiple and reliable qPCR analyses from lumbar and thoracic mouse IVD compartments and can circumvent the need for pooling IVDs from different spine regions or mice in nonsurgical models.