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. 2017 May 9;9(5):1375–1385. doi: 10.18632/aging.101235

Figure 2. Female baboon (P. hamadryas) linear regression of serum cortisol by age.

Figure 2

(A) 24 baboons from the colony at Southwest National Primate Research Center (cortisol = −24.7*X+735.1 ng/ml; P=0.0007); (B) 31 baboons from the Oklahoma University Primate Center (colony cortisol = −23.7*X+1521; P=0.039). The data for the Oklahoma baboons are reproduced from their publication (Willis et al. 2014). Red symbols represent five baboons that were included in the immunohistochemistry studies reported here.