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. Author manuscript; available in PMC: 2024 Nov 12.
Published in final edited form as: Psych. 2024 Jan 29;6(1):143–162. doi: 10.3390/psych6010009

Figure 3. Age and Sex-related Differences in Hair Proteins.

Figure 3

Note. (A) The first two principal components showing spatial separations by age, with children above 2 years (pink) located in between the children 0-2 years (blue, upper right) and the mothers (green, lower left). (B) The first two tSNE dimensions by age, showing mothers in the left upper quadrant separate from the children. Higher spectral counts for 7/17 hair proteins occurred in mothers (SERPINB4, POF1B, PLEC, A2ML1, HIST1H3A, UQCRQ, AHCY) and one protein (SCGB2A1) in children (Kruskal-Wallis ANOVA and post hoc Benjamini-Hochberg corrections. (C) PCA analyses of all children showing overlapping circles for girls (blue) and boys (pink). (D) tSNE dimensions by sex, showing overlap between boys and girls. Higher spectral counts were observed for CSN2 (Casein beta) in boys (p=0.0184) and ALMS1 (Alström syndrome protein 1) in girls (p=0.0214) (see Table 3).