Effect of exorphins on gastrointestinal function, hormonal release, and appetite.

Abstract:

:Peptic digestion of gluten results in the production of substances having opiatelike activity in bio- and receptor assays. These substances have been termed exorphins. In this study, we determined the effect of gluten, hydrolyzed gluten, and hydrolyzed gluten plus the opiate blocker naloxone on a variety of hormonal parameters, gastrointestinal transit time, small bowel mucosal integrity, and satiety. Hydrolyzed gluten prolonged intestinal transit time, and this effect was reversed by concomitant administration of naloxone. Hydrolyzed gluten also produced a naloxone-reversible increase in plasma somatostatinlike activity, which may have been responsible for the delayed transit time. No effects of the "exorphins" could be demonstrated on serum gastrin, cortisol, carbohydrate metabolism, or small bowel mucosal integrity. Although a number of studies have suggested a role for endogenous opiates in appetite regulation, we could not demonstrate any effect of "exorphins" on the amount of calories ingested nor on the perception of satiety. This study defines a potential role for small opiatelike peptides in foodstuffs in the regulation of intestinal function.

journal_name

Gastroenterology

journal_title

Gastroenterology

authors

Morley JE,Levine AS,Yamada T,Gebhard RL,Prigge WF,Shafer RB,Goetz FC,Silvis SE

subject

Has Abstract

pub_date

1983-06-01 00:00:00

pages

1517-23

issue

6

eissn

0016-5085

issn

1528-0012

pii

S0016508583001304

journal_volume

84

pub_type

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