<Tr> <Td> 3β - HSD CAH </Td> <Td> very rare </Td> <Td> 201810 </Td> <Td> 3βHSD II </Td> <Td> 1p13 </Td> <Td> pregnenolone → 17OH - pregnenolone → DHEA → </Td> <Td> progesterone 17OH - progesterone androstenedione </Td> <Td> ↓ </Td> <Td> ↓ </Td> </Tr> <Tr> <Td> 17α - hydroxylase CAH </Td> <Td> very rare </Td> <Td> 202110 </Td> <Td> P450c17 </Td> <Td> 10q24. 3 </Td> <Td> pregnenolone → progesterone → 17OH - pregnenolone → </Td> <Td> 17OH - pregnenolone 17OH - progesterone DHEA </Td> <Td> ↑ </Td> <Td> ↓ </Td> </Tr> <Tr> <Td> lipoid CAH (20, 22 - desmolase) </Td> <Td> very rare </Td> <Td> 201710 </Td> <Td> StAR P450scc </Td> <Td> 8p11. 2 15q23 - q24 </Td> <Td> transport of cholesterol cholesterol → </Td> <Td> into mitochondria pregnenolone </Td> <Td> ↓ </Td> <Td> ↓ </Td> </Tr> <P> Since the 1960s most endocrinologists have referred to the forms of CAH by the traditional names in the left column, which generally correspond to the deficient enzyme activity . As exact structures and genes for the enzymes were identified in the 1980s, most of the enzymes were found to be cytochrome P450 oxidases and were renamed to reflect this . In some cases, more than one enzyme was found to participate in a reaction, and in other cases a single enzyme mediated in more than one reaction . There was also variation in different tissues and mammalian species . </P>

Congenital adrenal hyperplasia (cah) is most likely to have which of these effects