Insulin-like growth factor I, insulin-like growth factor binding protein 3, and urologic measures of benign prostatic hyperplasia
RO Roberts, DJ Jacobson, CJ Girman… - American journal of …, 2003 - academic.oup.com
RO Roberts, DJ Jacobson, CJ Girman, T Rhodes, GG Klee, MM Lieber, SJ Jacobsen
American journal of epidemiology, 2003•academic.oup.comLaboratory studies suggest that insulin-like growth factor I (IGF-I) promotes prostatic growth.
The authors evaluated the association between benign prostatic hyperplasia and IGF-I and
its binding protein IGFBP-3 in community-dwelling men to determine whether this laboratory
finding is manifest at the population level. Participants (n= 471) were Olmsted County,
Minnesota, Caucasian males aged 40–79 years in 1990. Urologic measures were assessed
from the International Prostate Symptom Score, peak urinary flow rates, prostate volume …
The authors evaluated the association between benign prostatic hyperplasia and IGF-I and
its binding protein IGFBP-3 in community-dwelling men to determine whether this laboratory
finding is manifest at the population level. Participants (n= 471) were Olmsted County,
Minnesota, Caucasian males aged 40–79 years in 1990. Urologic measures were assessed
from the International Prostate Symptom Score, peak urinary flow rates, prostate volume …
Abstract
Laboratory studies suggest that insulin-like growth factor I (IGF-I) promotes prostatic growth. The authors evaluated the association between benign prostatic hyperplasia and IGF-I and its binding protein IGFBP-3 in community-dwelling men to determine whether this laboratory finding is manifest at the population level. Participants (n = 471) were Olmsted County, Minnesota, Caucasian males aged 40–79 years in 1990. Urologic measures were assessed from the International Prostate Symptom Score, peak urinary flow rates, prostate volume, and serum prostate-specific antigen (PSA), and serum IGF-I and IGFBP-3 levels were measured. After adjustment for age, the relative odds (odds ratios) of an abnormal urologic measure in men with high versus low serum IGF-I levels were 0.98 (95% confidence interval (CI): 0.66, 1.45) for a symptom score of >7, 1.14 (95% CI: 0.72, 1.80) for a peak urinary flow rate of <12 ml/second, 1.11 (95% CI: 0.72, 1.72) for a prostate volume of >30 ml, and 0.71 (95% CI: 0.46, 1.09) for a PSA level of >1.4 ng/ml. A low IGFBP-3 level was associated with an enlarged prostate (odds ratio = 1.72, 95% CI: 1.05, 2.82), after simultaneous adjustment for IGF-I and age, but not with other urologic measures. These data do not provide evidence for an association between benign prostatic hyperplasia and serum IGF-I.
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