- Alterations of cholesterol synthesis precursors (7-dehydrocholesterol, 7-dehydrodesmosterol, desmosterol) in dysmyelinating neurological mutant mouse (quaking, shiverer and trembler) in the PNS and the CNS. Bourre, J.M., Clément, M., Gérard, D., Chaudiére, J. Biochim. Biophys. Acta (1989)