Linked Life Data

10509903

Source:http://linkedlifedata.com/resource/pubmed/id/10509903

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
1999-10-20
pubmed:abstractText
Pipecolic acid, a metabolite of lysine, is found in human physiological fluids. It is known that plasma pipecolic acid levels are elevated in patients with Zellweger syndrome, a genetic disorder, and chronic liver diseases. However, it is uncertain if this acid originates directly from food intake or from mammalian or intestinal bacterial enzyme metabolism. To characterize the relationship between plasma pipecolic acid and diet, we analyzed the contents of pipecolic acid in 17 edible plants and changes in plasma and urinary pipecolic acid levels following soybean juice ingestion by 4 healthy volunteers. Our study revealed that some of the plants contained high concentrations of total pipecolic acid, and a higher portion of L-isomer than D-isomer. Loading tests demonstrated that plasma levels and urinary excretion of D-isomer increased significantly 2 h after soybean juice ingestion. Plasma lysine levels showed a similar increase to that of D-isomer. These findings suggest that plasma pipecolic acid, particularly the D-isomer, originates mainly from the catabolism of dietary lysine by intestinal bacteria rather than by direct food intake and that D- and L-isomer may have different mechanisms of metabolism. Moreover, these findings may be important for clarifying the pathogenesis of peroxisomal disorders.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0009-8981
pubmed:author
pubmed:issnType
Print
pubmed:volume
287
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
145-56
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Origin of D- and L-pipecolic acid in human physiological fluids: a study of the catabolic mechanism to pipecolic acid using the lysine loading test.
pubmed:affiliation
Third Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't