Abstract:
OBJECTIVES:To investigate the associations between benign prostatic hyperplasia (BPH) and polymorphisms in genes that encode growth factors, cytokines, and vitamin D and their receptors. METHODS:A total of 510 white men (median age 60 years) randomly selected from the Olmsted County, Minnesota community participated in a study of BPH from 1990 to 2000. Biennial measurements were made to assess the International Prostate Symptom Score, peak urinary flow rate, and prostate volume. Genotyping of genes that encode transforming growth factor, interleukin-10, tumor necrosis factor, and vitamin D receptor, among others, was performed. RESULTS:The CC genotype of the transforming growth factor-beta 1 gene was inversely associated with treatment for BPH (hazard ratio [HR] 0.38, 95% confidence interval [CI] 0.15 to 0.98). The presence of at least one allele with 17 or more CA repeats of the epidermal growth factor receptor gene was positively associated with an International Prostate Symptom Score greater than 7 (HR 1.32, 95% CI 1.01 to 1.73). The AA genotype of tumor necrosis factor-alpha was inversely associated with peak urinary flow rate (HR 0.33, 95% CI 0.12 to 0.90). For the vitamin D receptor gene, positive associations were found between prostate volume and the CC genotype of the T_C (Taq 1) polymorphism (HR 1.39, 95% CI 1.0 to 1.92) and the AA genotype of the G_A (Bsm 1) polymorphism (HR 1.36, 95% CI 1.06 to 1.74). CONCLUSIONS:These findings suggest that transforming growth factor-beta 1, tumor necrosis factor-alpha, epidermal growth factor receptor, and vitamin D receptor polymorphisms may be involved in the pathogenesis of BPH.
journal_name
Urologyjournal_title
Urologyauthors
Mullan RJ,Bergstralh EJ,Farmer SA,Jacobson DJ,Hebbring SJ,Cunningham JM,Thibodeau SN,Lieber MM,Jacobsen SJ,Roberts ROdoi
10.1016/j.urology.2005.08.061subject
Has Abstractpub_date
2006-02-01 00:00:00pages
300-5issue
2eissn
0090-4295issn
1527-9995pii
S0090-4295(05)01305-1journal_volume
67pub_type
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