Abstract
Benign prostatic hyperplasia/benign prostatic enlargement (BPH/BPE) is a common proliferative disease, and giving rise to associate with lower urinary tract symptoms (LUTS). However, the pathogenesis is not well clarified, and thought to be multifactorial. There are some lines of evidence that impairment in the blood supply of the lower urinary tract causes development of BPH/BPE. Clinical data showed an association between the development of BPH/BPE and atherosclerotic disease such as hypertension, diabetes and hyperlipidemia. The spontaneously hypertensive rat (SHR) has been used as model of genetic hypertension. SHR also shows decreased blood flow and hyperplastic morphological abnormalities in the ventral prostate. Our previous studies demonstrated that chronic treatment with vasodilative drugs nicorandil (ATP sensitive potassium channel opener) and silodosin (alpha1 adrenoceptor antagonist) increased blood flow and suppressed the growth factor and morphological abnormalities in the SHR ventral prostate. These data suggested that prostatic blood flow could be therapeutic targets for BPH/LUTS.
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