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. 2020 Feb 3;10(2):225. doi: 10.3390/biom10020225

Figure 1.

Figure 1

Key sex steroid synthesis pathways found in the gonads and the brain. Enzyme name abbreviations are as follows: P450 side-chain cleavage enzyme (P455scc), 17α-hydroxylase [P450(17α)], 3β-hydroxysteroid dehydrogenase (3β-HSD), 17β-hydroxysteroid dehydrogenase (17β-HSD), 3α-hydroxysteroid dehydrogenase (3α-HSD), and P450 aromatase (P450arom) [48,52,54].