Figure 1

Figure 1. Steroid synthesis
Principal intermediates of steroidogenesis illustrating the location of multiple partial biochemical blocks at steps that rely on cytochrome p450 oxidoreductase. These partial blocks lead to increased serum pregnenolone, progesterone, and 17-alpha-OH-progesterone.

From: Cytochrome P450 Oxidoreductase Deficiency

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Pagon RA, Adam MP, Ardinger HH, et al., editors.
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