Serum pseudocholinesterase variants in Mexican-born patients with lepromatous leprosy.

No difference in the distribution of serum pseudocholinesterase variants could be found in lepromatous leprosy patients as compared with controls. The variety of reported relationships of pseudocholinesterase variants in leprosy suggests that only in some populations is a locus regulating pseudocholinesterase genetically linked to a hypothetical locus regulating susceptibility to leprosy.