Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
23
pubmed:dateCreated
2000-1-6
pubmed:abstractText
5alpha-Reductase type 2, the predominant prostatic isozyme of this protein, converts testosterone to dihydrotestosterone. It has been hypothesized that individuals with greater 5alpha-reductase activity are at increased risk for prostate cancer (CaP). A single nucleotide polymorphism of the 5alpha-reductase type 2 gene (SRD5A2) gives rise to a substitution of leucine (leu) for valine (val) at codon 89 (V89L), the presence of which may affect serum androstanediol glucuronide (AAG) levels. We studied the effect of this polymorphism on the risk of prostate cancer in a prospective, nested, case-control design within the Physicians' Health Study. In all controls (n = 799), the leu allele frequency was 0.30. Among the 386 controls with plasma AAG levels available, there was no significant association between AAG levels and V89L genotype. We also detected no significant association between risk for CaP and genotype [odds ratio: val/val = 1.0 (reference), leu/val = 0.96 (95% confidence interval, 0.76-1.20), and leu/ leu = 0.84 (95% confidence interval, 0.57-1.24)]. These data do not support a moderate to large effect of the SRD5A2 V89L polymorphism on plasma AAG levels or CaP risk in this predominantly Caucasian cohort, although a small effect cannot be completely excluded.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0008-5472
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
59
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
5878-81
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed-meshheading:10606227-3-Oxo-5-alpha-Steroid 4-Dehydrogenase, pubmed-meshheading:10606227-Adult, pubmed-meshheading:10606227-Aged, pubmed-meshheading:10606227-Aged, 80 and over, pubmed-meshheading:10606227-Amino Acid Substitution, pubmed-meshheading:10606227-Anticarcinogenic Agents, pubmed-meshheading:10606227-Aspirin, pubmed-meshheading:10606227-Boston, pubmed-meshheading:10606227-Double-Blind Method, pubmed-meshheading:10606227-European Continental Ancestry Group, pubmed-meshheading:10606227-Heart Diseases, pubmed-meshheading:10606227-Humans, pubmed-meshheading:10606227-Isoenzymes, pubmed-meshheading:10606227-Leucine, pubmed-meshheading:10606227-Male, pubmed-meshheading:10606227-Middle Aged, pubmed-meshheading:10606227-Neoplasms, pubmed-meshheading:10606227-Polymorphism, Genetic, pubmed-meshheading:10606227-Prostatic Neoplasms, pubmed-meshheading:10606227-Risk Factors, pubmed-meshheading:10606227-Valine, pubmed-meshheading:10606227-beta Carotene
pubmed:year
1999
pubmed:articleTitle
The V89L polymorphism in the 5alpha-reductase type 2 gene and risk of prostate cancer.
pubmed:affiliation
Department of Adult Oncology, Dana Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts 02115, USA.
pubmed:publicationType
Journal Article, Clinical Trial, Research Support, U.S. Gov't, P.H.S., Randomized Controlled Trial, Research Support, Non-U.S. Gov't