Document Detail

INSPstI polymorphism and prostate cancer in African-American men.
MedLine Citation:
PMID:  15880482     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Both prostate cancer and diabetes mellitus are common diseases in African-American men. High insulin levels and insulin resistance have been implicated in prostate cancer development, which has prompted a recent investigation of a possible role for germline variation in the insulin gene (INS) and prostate cancer risk. METHODS: Four hundred sixty-six African-American men with and without prostate cancer from the Flint Men's Health Study were typed for the INS Pst1 genotype using restriction digest and direct sequencing. An association between the Pst1 genotype and prostate cancer was examined using crude and age-adjusted logistic regression models. RESULTS: African-American men who were homozygous for the INS PstI CC genotype were 1.59 times more likely to be diagnosed with prostate cancer compared to men with the TT or TC genotypes (95% CI = 0.93-2.72). The association appeared stronger among diabetics compared to non-diabetics; however this observation was not statistically significant. CONCLUSIONS: Our study, taken together with the report of Ho et al., suggests that the INS Pst1 CC genotype is associated with prostate cancer risk in African-American men. Germline variation in the INS gene should be more fully explored in multiethnic studies to elucidate the molecular variant(s) associated with prostate carcinogenesis.
Gina B Claeys; Aruna V Sarma; Rodney L Dunn; Kimberly A Zuhlke; Jennifer Beebe-Dimmer; James E Montie; Kirk J Wojno; David Schottenfeld; Kathleen A Cooney
Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  The Prostate     Volume:  65     ISSN:  0270-4137     ISO Abbreviation:  Prostate     Publication Date:  2005 Sep 
Date Detail:
Created Date:  2005-08-22     Completed Date:  2005-10-11     Revised Date:  2008-08-29    
Medline Journal Info:
Nlm Unique ID:  8101368     Medline TA:  Prostate     Country:  United States    
Other Details:
Languages:  eng     Pagination:  83-7     Citation Subset:  IM    
Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan 48109, USA.
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MeSH Terms
African Americans / genetics*
Deoxyribonucleases, Type II Site-Specific
Insulin / genetics*
Middle Aged
Polymorphism, Genetic*
Prostatic Neoplasms / ethnology,  etiology,  genetics*
Grant Support
Reg. No./Substance:
11061-68-0/Insulin; EC type II deoxyribonucleases; EC, Type II Site-Specific

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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