<prompt> Answer this question truthfullyWhat is the cause of a rare form of dysautonomia characterized by ptosis, orthostatic hypotension, hypoglycemia, and hypothermia?  <response>: <reason> A deficiency of dopamine hydroxylase in the catecholamine synthesis pathway is the cause of a rare form of dysautonomia characterized by ptosis, orthostatic hypotension, hypoglycemia, and hypothermia. 