Effect of Kangquan Recipe () on BAMBI Expression in Hypothalamic-Pituitary-Prostate in Rats with Benign Prostatic Hyperplasia / 中国结合医学杂志

OBJECTIVE@#To investigate the effect of Kangquan Recipe (, KQR) on bone morphogenetic protein and activin membrane-bound inhibitor (BAMBI) expression and its mechanism in rats with benign prostatic hyperplasia (BPH).@*METHODS@#Forty-eight male Sprague-Dawley rats were divided into 6 groups using a random number table, with 8 in each group: the normal group (normal saline 10 mL/kg), the model group (normal saline 10 mL/kg), the finasteride group (0.5 mg/kg), the low-dose KQR group (3.5 g/kg), the middle-dose KQR group (7 g/kg), and the high-dose KQR group (14 g/kg). The 40 rats were subcutaneously injected with testosterone propionate after castration for 30 days to establish the BPH rat model except for those in the normal group. At the same time, the corresponding drugs were administered by gavage for 30 consecutive days. The effects of different doses of KQR on the protate wet weight, prostate volume and prostate index (PI) were observed. The changes in histopathology were monitored with hematoxylin-eosin staining. BAMBI protein and mRNA expression contents were determined by Western blot and quantitative real-time polymerase chain reaction, respectively.@*RESULTS@#All doses of KQR could decrease prostatic epithelial tissue proliferation. Compared to the model group, the high and middle-dose KQR significantly reduced prostate wet weight, prostate volume and PI; increased BAMBI protein expression in the hypothalamus, pituitary and prostate tissue; all doses of KQR up-regulated BAMBI mRNA expression in serum, prostatic fluid and prostate tissue (P<0.05 or P<0.01).@*CONCLUSIONS@#KQR could inhibit the proliferation of rat prostatic tissue, promote BAMBI protein expression in the hypothalamic-pituitary-prostate of rats with BPH; and increase BAMBI mRNA expression in the blood, prostatic fluid and prostate tissue of rats with BPH, showing a dose-effect relationship. KQR can be used as a potential drug for the treatment of BPH.

Clinical study on Kangquan Recipe (康泉方) for benign prostatic hyperplasia patients: a randomized controlled trial / 中国结合医学杂志

<p><b>OBJECTIVE</b>To observe the effectiveness and safety of Kangquan Recipe (康泉方, KQR) for benign prostatic hyperplasia (BPH) patients.</p><p><b>METHODS</b>One hundred and six BPH patients were randomly assigned to the treatment group (53 cases) and the control group (53 cases) according to a random number table. The treatment group was given KQR orally; the control group was given cernilton orally. After 24-week treatment, the clinical effect and safety were evaluated using the International Prostatic Symptom Score (I-PSS), quality of life (QOL), maximum flow rate (Qmax), average flow rate (Qave), residual urine volume (RUV), total prostatic volume (TPV), etc.</p><p><b>RESULTS</b>After treatment, the score of I-PSS was decreased from 16.9±5.6 to 12.5±4.6 in the treatment group, significantly lower compared with the control group; the levels of Qmax and Qave were from 10.9±3.5 to 15.6±4.5 and 5.4±2.1 to 7.3±2.5 (mL/s) in the treatment group, significantly higher compared with the control group; the levels of RUV and TPV were from 70.8±28.2 to 35.2±21.8 and 37.2±16.9 to 30.1±10.8 (mL) in the treatment group, significantly lower compared with the control group (all P<0.05). The incidence rate of adverse reaction was similar between the two groups (P>0.05).</p><p><b>CONCLUSION</b>KQR is effective and safe for the treatment of BPH.</p>

Effects of Kangquan Recipe on sex steroids and cell proliferation in rats with benign prostatic hyperplasia / 中国结合医学杂志

<p><b>OBJECTIVE</b>To investigate the effects of Kangquan Recipe (KQR) on sex steroids and cell proliferation in an experimental benign prostatic hyperplasia (BPH) model in rats.</p><p><b>METHODS</b>Seventy-two SD rats were randomly divided into six groups: the normal group, the model group, the finasteride group, and the low-, middle-, and high-dose KQR groups, 12 in each group. Except those in the normal group, the rats were injected with testosterone after castration for the establishment of BPH model and then given respectively with normal saline, finasteride, and low-, middle-, and high-dose of KQR for 30 days. The levels of plasma testosterone (T) and estradiol (E(2)) were determined by enzyme-linked immunosorbent assay (ELISA), and the mRNA expression ) of proliferating cell nuclear antigen (PCNA) in prostate tissue was detected by reverse transcription-polymerase chain reaction (RT-PCR) after administration.</p><p><b>RESULTS</b>Compared with the model group, the prostate weight, the plasma T, and the mRNA expression of PCNA were significantly lower, and the plasma E(2) and the ratio of E(2)/T were higher in the three KQR groups (P<0.05 or P<0.01). There was no significant difference in the prostate weight, plasma T and E(2), and ratio of E(2)/T among the finasteride group and the three KQR groups (P>0.05). The mRNA expressions of PCNA were significantly higher in the middle- and low-dose of KQR groups than those in the finasteride group (P<0.05).</p><p><b>CONCLUSION</b>KQR shows multitarget effects on experimental BPH rats, and the mechanism might be related with regulating the balance of plasma T and E(2) and decreasing the PCNAmRNA expression in prostate tissue to restrain cell proliferation in a dose-dependent manner.</p>

Effect of kangquan recipe on basic fibroblast growth factor of prostate tissue in rats / 中国中西医结合杂志

<p><b>OBJECTIVE</b>To investigate the effect of Kangquan Recipe (KQR) on basic fibroblast growth factor (bFGF) in prostatic tissue of rats.</p><p><b>METHODS</b>Benign prostatic hyperplasia model rat was established by injecting testosterone after castration. After being administered with KQR by gastrogavage for 30 days, the model rats were killed and their abdominal lobe prostate glands were taken for determining the protein and mRNA expressions of bFGF using immunohistochemical method and RT-polymerase chain reaction (RT-PCR) respectively.</p><p><b>RESULTS</b>The expressions of bFGF and bFGF mRNA were significantly lower in the model rats being treated with high or medium dose of KQR than those in the untreated model rats (P < 0.05 or P < 0.01), but these indexes were insignificantly different between the model rats treated with low dose of KQR and untreated model rats (P > 0.05).</p><p><b>CONCLUSION</b>KQR can effectively decrease the expression of bFGF in prostatic tissue of experimental benign prostate hyperplasia model rats.</p>

Effect of Kangquan Recipe on apoptosis regulatory genes bax and bcl-2 mRNA in prostate of rats / 中国中西医结合杂志

<p><b>OBJECTIVE</b>To investigate the effect of Kangquan Recipe (KQR) on apoptosis regulatory genes bax and bcl-2 mRNA in prostate of rats.</p><p><b>METHODS</b>Benign prostatic hyperplasia model rat was established by injecting testosterone after castration. The model rats were killed and prostate glands were removed for examination after being treated with administration of KQR by gastrogavage for 30 days. The wet weight of prostate was measured and the mRNA expressions of bax and bcl-2 in rats' tissue of abdominal lobe of prostate were determined by RT-PCR.</p><p><b>RESULTS</b>Compared with the model group, wet weight of prostate was lower significantly in the groups treated with different dosages of KQR (P < 0.05 or P < 0.01), and that in the high dose KQR treated group was similar to that in the normal group (P > 0.05). Compared with the model group, the expressions of bax mRNA and ratios of bax/bcl-2 were significantly higher and the expressions of bcl-2 mRNA significantly lower in the KQR treated groups (P < 0.01), and these indexes in the high dose KQR treated group were insignificantly different from those in the normal group (P > 0.05).</p><p><b>CONCLUSION</b>KQR shows an obvious treatment effect on rats with benign prostatic hyperplasia, the mechanism might be through effectively regulating the expressions of bax mRNA and bcl-2 mRNA in prostatic tissue to accelerate the cell apoptosis of prostate in obvious dose-effect manner.</p>