Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2004-8-13
pubmed:abstractText
Identification of phosphorus (P)-responsive genes is important in diagnosing the adequacy of dietary P intake well before clinical symptoms arise. The mRNA abundance of selected genes was determined in the intestine, pyloric ceca, and kidney of rainbow trout fed low-P (LP) or sufficient-P (SP) diet for 2, 5, and 20 days. The LP-to-SP ratio (LP/SP) of mRNA abundance was used to evaluate the difference in gene expression between LP and SP fish, and to compare the response with bone and serum P, which are conventional indicators of P status. The LP/SP of intestinal, cecal, and renal type II sodium-phosphate cotransporter (NaPi-II) mRNA abundance changed from approximately 1-2 (day 2) to approximately 1.4-4 (day 5) and to approximately 2-10 (day 20). The LP/SP of renal NaPi-II, vitamin D 24-hydroxylase, and vitamin D receptor mRNA abundance correlated inversely with serum P on day 5 but not on day 2 and day 20. In another study, differentially expressed genes between LP and SP fish were examined by subtractive hybridization, confirmed by Northern blot, and evaluated by t-test and correlation with serum and bone P concentrations. About 30 genes were identified as dietary P responsive at day 20, including intestinal meprin and cysteinesulfinic acid decarboxylase, renal S100 calcium-binding protein and mitochondrial P(i) carrier, and cecal apolipoprotein E, somatomedin B-related protein, and NaPi-II. The LP/SP of mRNA abundance of renal mitochondrial P(i) carrier and intestinal cysteinesulfinic acid decarboxylase changed significantly by day 2, and intestinal meprin by day 5. Hence, these genes and NaPi-II are among the earliest steady-response genes capable of predicting P deficiency well before the onset of clinical deficiency.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0363-6119
pubmed:author
pubmed:issnType
Print
pubmed:volume
287
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
R541-50
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Dietary phosphorus-responsive genes in the intestine, pyloric ceca, and kidney of rainbow trout.
pubmed:affiliation
Department of Pharmacology and Physiology, UMDNJ-New Jersey Medical School, 185 S. Orange Ave., Newark, NJ 07101-1709, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S.