Amino acids and serotonin in Limax maximus after a tryptophan devoid diet

Dorothy W. Gietzen, Adam S. Harris, Scott Carlson, Alan Gelperin

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

1. 1. Animals avoid diets lacking an essential amino acid, such as tryptophan (TRP), the precursor for serotonin (5-HT). 5-HT is important in the control of feeding. 2. 2. To study the effects of TRP deprivation, slugs were fed TRP-devoid (DEV) or control (COR) diets. 3. 3. Food intake was depressed in DEV, as expected, but after 2 weeks, the serontonergic metacerebral giant cell in DEV was still functional. 4. 4. Neither brain 5-HT nor plasma TRP concentration was affected. 5. 5. Compared with food-restricted animals that had reductions in most amino acids, the DEV group sustained a marked plasma amino acid imbalance.

Original languageEnglish (US)
Pages (from-to)143-149
Number of pages7
JournalComparative Biochemistry and Physiology -- Part A: Physiology
Volume101
Issue number1
DOIs
StatePublished - Jan 1992
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physiology

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