Figure 1.

(a) Illustration of the pathways of galactose metabolism, with inhibition of the key enzyme: galactose-1-phosphate uridylytransferase. The key enzymes involved are shaded. (b) Illustration of the steps in oogenesis and folliculogenesis over the prenatal to menopause time period that may be influenced by GALT deficiency [16,17,18,19,20] with the proposed site of the PI3K/AKT regulation as cited by Sanchez and Smitz [20]. The abbreviations used are listed in the abbreviations list.