Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1999-7-26
pubmed:abstractText
The ontogenic and hormonal regulation of a sulfotransferase, SULT1B1, was examined. Hepatic RNA was isolated from rats of various ages from 1 to 90 days. The mRNA for SULT1B1 is low for both sexes until a dramatic increase ( approximately 6-fold) occurs between 15 and 30 days of age in male rats. SULT1B1 expression then decreases to half of the maximal level by 90 days of age. The increase in SULT1B1 mRNA in female rats is less dramatic and occurs between 30 and 45 days of age. SULT1B1 mRNA expression plateaus from 45 to 90 days in female rats. Expression of SULT1B1 mRNA is comparable in adult male and female rats. RNA was isolated from hypophysectomized (HX) animals and HX animals treated with growth hormone [by either male (injection) or female (infusion) pattern], estradiol, progesterone, or testosterone. HX and HX plus growth hormone, or HX plus steroid replacement, did not alter SULT1B1 mRNA expression. Pituitary-intact rats were treated with steroidal compounds dexamethasone (DEX) and pregnenolone-16alpha-carbonitrile (PCN). Both DEX and PCN increased expression of SULT1B1 mRNA in male rats (4- and 3-fold, respectively). However, in female rats, only PCN induced SULT1B1 mRNA (2-fold), whereas DEX did not induce SULT1B1 in female rats. Analysis of SULT1B1 protein expression indicated that only when SULT1B1 mRNA was markedly increased, that is in DEX-treated male rats, was SULT1B1 protein increased. Thus, although adult male and female rats have similar SULT1B1 mRNA expressions, the patterns develop ontogenically differently. SULT1B1 is not regulated by pituitary hormones and DEX induces SULT1B1 protein in male rats.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0022-3565
pubmed:author
pubmed:issnType
Print
pubmed:volume
290
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
319-24
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed-meshheading:10381794-Aging, pubmed-meshheading:10381794-Animals, pubmed-meshheading:10381794-Animals, Newborn, pubmed-meshheading:10381794-Antibody Specificity, pubmed-meshheading:10381794-Blotting, Northern, pubmed-meshheading:10381794-Blotting, Western, pubmed-meshheading:10381794-Dexamethasone, pubmed-meshheading:10381794-Enzyme-Linked Immunosorbent Assay, pubmed-meshheading:10381794-Female, pubmed-meshheading:10381794-Glucocorticoids, pubmed-meshheading:10381794-Hormones, pubmed-meshheading:10381794-Hypophysectomy, pubmed-meshheading:10381794-Male, pubmed-meshheading:10381794-Organ Specificity, pubmed-meshheading:10381794-Pregnenolone Carbonitrile, pubmed-meshheading:10381794-RNA, Messenger, pubmed-meshheading:10381794-Rabbits, pubmed-meshheading:10381794-Rats, pubmed-meshheading:10381794-Rats, Sprague-Dawley, pubmed-meshheading:10381794-Sulfotransferases
pubmed:year
1999
pubmed:articleTitle
Postnatal ontogeny and hormonal regulation of sulfotransferase SULT1B1 in male and female rats.
pubmed:affiliation
Environmental Health and Occupational Medicine Center, Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.