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. 2023 Jun 30;27(2):39–49. doi: 10.20463/pan.2023.0017

Figure 5.

Figure 5.

Effects of aging on MAO-A and MAO-B mRNA expression in gWAT, BAT, and SM tissues. (A) The relative basal mRNA expression levels of MAO-A and MAO-B among gWAT, BAT, and SM in 2-month-old mice. (B) Transcriptional levels of MAO-A and MAO-B in gWAT, BAT, and SM in the three age groups: 2-month-old (2 M), 12-month-old (12 M), and 24-month-old (24 M). Five mice were assigned to each group. (C) MAO-B and GABA protein expression levels by immunohistochemical staining. MAO-A, monoamine oxidase-A; MAO-B, monoamine oxidase-B; GABA, gamma-aminobutyric acid; gWAT, gonadal white adipose tissue; BAT, brown adipose tissue; SM, skeletal muscle. Data are presented as means ± SEM. Significant differences are denoted by an asterisk for p < 0.05 (*) compared to 2 M; a dagger for p < 0.05 (†) compared to 12 M.