title: Promotion of palmar sweating with oral phosphatidylcholine.
abstract: Since acetylcholine is the main neurotransmitter of eccrine sweating, phosphatidylcholine ingestion might increase sweating. In 10 adults mid-palmar sweating was measured 12 hours after ingestion of a high and a low phosphatidylcholine supper. In a double blind, crossover study, mid-palmar sweating was measured in 11 consenting adults 12 hours after a low phosphatidylcholine supper taken with either lecithin or placebo. Five minutes after cleaning the palm and drying, sweat was captured in a quick-drying plastic film. The film was removed with cellophane tape and placed on a glass slide. Mean "droplet" diameter was measured by averaging the greatest diameter of 25 "droplets." Ten of 10 subjects (100%) produced more sweat with a high phosphatidylcholine meal than with a low one. Compared to placebo, 10 of 11 subjects (91%) given lecithin had significantly increased sweat secretion (p less than 0.01). It remains to be confirmed that this phosphatidylcholine-induced sweating increase is clinically significant.
authors.forename: P J
authors.initials: PJ
authors.lastname: Aronson
authors.forename: A L
authors.initials: AL
authors.lastname: Lorincz
mesh_terms: D000328:Adult; D000368:Aged; D001833:Body Temperature Regulation / Q000187:drug effects; D004305:Dose-Response Relationship, Drug; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010713:Phosphatidylcholines / Q000008:administration & dosage / Q000494:pharmacology*; D013546:Sweating / Q000187:drug effects*
chemical_list: D010713:Phosphatidylcholines