Inhibitory Effect of Thymoquinone on Testosterone-Induced Benign Prostatic Hyperplasia in Wistar Rats

2017 ◽  
Vol 31 (12) ◽  
pp. 1910-1915 ◽  
Author(s):  
Bahaa Al-Trad ◽  
Mazhar Al-Zoubi ◽  
Janti Qar ◽  
Khalid Al-Batayneh ◽  
Emad Hussien ◽  
...  
2021 ◽  
Vol 27 (1) ◽  
Author(s):  
Fatemeh Akbari ◽  
Mohammad Azadbakht ◽  
Kanu Megha ◽  
Ayat Dashti ◽  
Lale Vahedi ◽  
...  

Abstract Background Benign prostatic hyperplasia (BPH) is a common disease which causes various health problems for elderly men such as urinary retention, recurring urinary tract infection and bladder stones. The aim of this study is to evaluate the therapeutic effects of Juniperus communis L. seed extract (JCS) on BPH in male Wistar rats. Methods To this end, 30 rats were divided into 5 groups (N = 6): group 1 (vehicle), group 2 (disease control), group 3 (standard medicine; 10 mg/kg finasteride), and groups 4 and 5 were treated with 300 mg/kg and 600 mg/kg of the hydroalcoholic JCS seed extract, respectively. Groups 2, 3, 4 and 5 received testosterone enanthate to induce prostatic hyperplasia. At the end of experimental period (28 days), prostate glands were cut off under anesthesia. Histopathological examination was done and biochemical parameters such as Malondialdehyde, Glutathione and protein carbonyl were also measured. Their body weights were also observed during the study. At the end of the experiment, prostate weights and prostate specific antigen (PSA) levels were measured. Prostate index, inhibition prostate weight and inhibition prostate index were also calculated. Results Both histopathological examination and biochemical parameter results showed significant improvements in rats treated with finasteride and 600 mg/kg JCS extract (p < 0.01). In addition, PSA levels showed significant decrease in comparison with the disease group. But acute toxicity test indicated that using JCS extract resulted in an increase in liver enzymes (ALP, LDH, SGOT, SGPT). As a result, the extract should be used with caution. Conclusions Oral administration of JCS extract is effective on preventing testosterone-induced benign prostatic hyperplasia.


2019 ◽  
Vol 2019 ◽  
pp. 1-6 ◽  
Author(s):  
I. N. Vasilyeva ◽  
V. G. Bespalov ◽  
J. D. Von ◽  
A. L. Semenov ◽  
G. V. Tochilnikov ◽  
...  

The purpose of this work was to study changes in the level of cell-free DNA (cfDNA) in the blood of young and old rats in the normal state and with induced benign prostatic hyperplasia (BPH). Male Wistar rats were divided into 4 groups—young (3 months), old (20 months), intact, or with testosterone-induced BPH. Groups with BPH were subjected to surgical castration and administration of testosterone esters at a dose of 25 mg/kg for a total of 7 injections for 20 days. In intact animals, the level of cfDNA in old rats (2.00±0.14 ng/μl) was significantly higher than that in the young (1.02±0.30 ng/μl). The body and the prostate weights of old rats were 1.6 and 1.4 times larger than those of the young, without an increase in the prostate index (PI). The testosterone level in the blood of young rats was 1.6 times higher than that of old (6.20±0.93 nmol/l vs. 3.77±0.55 nmol/l; NS). In animals with BPH, the level of cfDNA in old rats (3.14±0.76 ng/μl) was significantly higher than that in young rats (0.80±0.14 ng/μl). The body and the prostate weights in old rats were 1.8 and 2.3 times larger, than those in young rats, with an increase in the PI. The level of testosterone in the blood of young (15.76±0.51 nmol/l) and old (16.99±1.1 nmol/l) rats was not significantly different. Morphological signs of BPH were observed in the prostate of both young and old rats. During the induction of BPH in the experiment, according to the level of cfDNA, cell death processes have not changed significantly in young rats but significantly increased in old rats. A similar trend was observed in the group of intact animals. The obtained data indicate that apoptosis processes are enhanced during the development of BPH despite the growth of tissues in the prostate itself.


2012 ◽  
Vol 14 (2) ◽  
pp. 320-324 ◽  
Author(s):  
Mee-Young Lee ◽  
In-Sik Shin ◽  
Chang-Seob Seo ◽  
Nam-Hun Lee ◽  
Hye-Kyung Ha ◽  
...  

Author(s):  
Kanyoni J. Mwangi ◽  
Kweri J. Kariuki ◽  
Mwangi A. Warimu ◽  
Bett S. Kipyegon ◽  
Sigei C. Chepngeno ◽  
...  

Aim: To evaluate the histostereological effects of P. africanus on testosterone induced Benign Prostatic Hyperplasia (BPH) in Wistar rats. Place and Duration of Study: The study was carried out for six weeks in Jomo Kenyatta University of Agriculture and Technology. Methodology: A sample size of sixty Wistar were used as the experimental model and they were divided into two study groups of 30 rats in the restorative group and 30 rats in the inhibitory group. Each group was further categorized into 5 control and 25 experimental rats. The experimental rats were further subdivided into 5 sub-groups based on varying doses of the crude methanolic bark extract of P. africanus (0 mg, 25 mg, 50 mg, 125 mg, and 200 mg). BPH in experimental animal was induced by subcutaneous injection of testosterone propionate (7.5 mg/kg) for 10 days. Results: The findings of the study showed that the restorative group had a statistical significant (P<0.05) ((dose dependent reduction of the prostate volume, the stromal and epithelium volume was observed. While in the inhibitory group a statistical significant (P<0.05) dose-related inhibition, in the increase of the prostate volume, the stromal and epithelium volume was observed. In conclusion, the maximal restorative effect was observed to be up to 85.6% and at a dose of 200 mg, while the optimal inhibitory effects were observed to be between 66.7- 68.4% in the dose range of 100-200 mg/kg/body weight. Conclusion: Crude methanolic bark extract of P. africanus has both restorative.


Author(s):  
Choi ◽  
Kim ◽  
Fan ◽  
Tang ◽  
Hwang ◽  
...  

: Benign prostatic hyperplasia (BPH) is one of the major public health concerns, which has a high prevalence rate and causes significant decline in men's quality of life. BPH is highly related to sexual hormone metabolism and aging. In particular, dihydrotestosterone (DHT), to which testosterone is modified by 5α-reductase (5AR), has a significant effect on BPH development. DHT binds to an androgen receptor (AR) and steroid receptor coactivator 1 (SRC-1); then, it induces the proliferation of a prostate cell and expression of prostate specific antigen (PSA). Paecilomyces tenuipes (P. tenuipes) is a mushroom that has been popularized by the artificial cultivation of fruiting bodies based on silkworms by researchers from the Republic of Korea. In a previous study, we identified the effect of PE on PSA mRNA expression in LNCaP cells. This suggests that PE may have an inhibitory effect on androgen signaling. Therefore, we confirmed the expression of androgen signaling-related factors, such as AR, SRC-1, and PSA in LNCaP. Furthermore, we confirmed the androgen signaling inhibitory effect of PE using the testosterone propionate (TP)-induced BPH rat model. A BPH rat model was established with a four-week treatment of daily subcutaneous injections of testosterone propionate (TP, 3 mg/kg) dissolved in corn oil after castration. The rats in the treatment group were orally gavaged P. tenuipes extract (PE), finasteride (Fi), or saw palmetto extract (Saw) with TP injection. DHT induced an increase in the expression levels of AR, SRC-1, and PSA proteins in LNCaP cells. On the contrary, the PE treatment reduced the expression levels. In vivo, the BPH group showed an increase in prostate size compared with the control group. The PE gavaged group showed a decrease in prostate size compared with the BPH group. In addition, the protein expressions of AR, 5AR2, and PSA were significantly lower in the PE gavaged group than BPH group in prostate tissue. These results suggest the beneficial effects of PE on BPH via the modulation of AR signaling pathway.


Marine Drugs ◽  
2021 ◽  
Vol 19 (12) ◽  
pp. 652
Author(s):  
Liping Wang ◽  
Yiwen Hou ◽  
Rong Wang ◽  
Qi Pan ◽  
Debao Li ◽  
...  

This study investigates the inhibitory effect of astaxanthin (AST) on testosterone-induced benign prostatic hyperplasia (BPH) in rats. Except for the sham operation, BPH model rats were randomly assigned to five groups: the BPH model control rats, AST-treated BPH model rats (20 mg/kg, 40 mg/kg, and 80 mg/kg), and epristeride (EPR)-treated BPH model rats. After treatment, as compared with the BPH model control rats, the prostate and ventral prostate weights of the AST-treated rats decreased, while there was a marked decline in the 80 mg/kg AST-treated rats. The same effect was also observed in the prostate index and ventral prostate index. The proliferation characteristics of epithelia observed in the BPH model control group were gradually alleviated in the AST-treated rats. As compared with the BPH model control rats, lower epithelial thicknesses of prostates and fewer secretory granules in epithelia were observed in the AST-treated rats. The superoxide dismutase (SOD) activity of prostates increased in all the AST-treated rats with a significant increase in the 40 mg/kg and 80 mg/kg AST-treated rats. The testosterone (T) and dihydrotestosterone (DHT) levels of prostates in the AST-treated groups were lower than those in the BPH model control group, and a significant decline was found in the T level of prostates in the 40 g/kg and 80 mg/kg AST-treated rats and the DHT level of prostates in the 40 mg/kg AST-treated rats. These results indicate that AST might have an inhibitory effect on T-induced BPH in rats, possibly due to SOD activity regulation and T and DHT levels.


Author(s):  
Adesegun J. Kashimawo ◽  
Kemelayefa O. James ◽  
Nnabuike D. Nnamani

Background and Purpose: Men of age 40 years and above are at risk of  non-cancerous enlargement of the prostate gland also known as benign prostatic hyperplasia (BPH). Adverse drug reactions and treatment relapse limit the effectiveness of orthodox pharmacotherapies. This study evaluated the effect of Cassia fistula hydroalcoholic extract on BPH. Methods: BPH was induced in Wistar rats by subcutaneous injection of 10 mg/kg/day of testosterone propionate (TP) for 7 days. The rats were randomly allotted to five groups: corn oil only; finasteride (FS) 5 mg/kg/day; and C. fistula extract at doses of 100, 200, and 400 mg/kg/day. A sixth group in which BPH was not induced received only the vehicle. At the end of 28 consecutive days of treatment, prostate and testicular weights and indices were evaluated. The in vitro antioxidant capacity of the extract was evaluated using the DPPH free radical scavenging method. Results: The extract showed a very strong free radical scavenging activity with IC50 value of 1.58 µg/mL (IC50 of gallic acid = 0.63 µg/mL) due to the presence of secondary metabolites. The results also showed significant (P?0.0001) reduction in the prostate weight, prostatic index, testes weight, and testes index of C. fistula extract-treated rats when compared with the untreated BPH group. Conclusion: These results suggest that C. fistula extract possesses potentials as a remedy for the treatment of BPH.


2019 ◽  
Vol 19 (13) ◽  
pp. 1627-1632
Author(s):  
Vladimir G. Bespalov ◽  
Valerii A. Alexandrov ◽  
Grigory V. Tochilnikov ◽  
Dmitrii Е. Lukin ◽  
Nadezhda T. Zhilinskaya ◽  
...  

Background: There is some evidence that Benign Prostatic Hyperplasia (BPH) may increase the risk of developing prostate cancer, so conducting research on effective BPH inhibitors is important. Objective: This research studied the inhibitory effect of Iodized Serum Milk Protein (ISMP) on BPH in rats. ISMP is a concentrate of lactic protein containing 2.2% iodine. Methods: Male Wistar rats, aged 18 months, were used. In the intact control group, sunflower oil was administered intragastrically by gavage. In 36 rats, BPH was induced by surgical castration, followed by subcutaneous injections of prolonged testosterone - omnadren, 25mg/kg every other day (7 administrations). One group of rats served as BPH-control. ISMP and finasteride (positive control), dissolved in sunflower oil, were administered to rats intragastrically daily at a dose of 200μg/kg and 5mg/kg, respectively, for 4 weeks starting immediately after castration. Results: ISMP inhibited the development of BPH in rats, significantly reducing the mass of the prostate and its parts (except for the anterior lobes) by 1.1-1.3 times and the prostatic index (the ratio of prostate weight to the body weight) - by 1.3-1.4 times. Finasteride inhibited the development of BPH, and its activity was higher (by 1.1-1.3 times) than in ISMP. : Histological analysis of the prostate showed fewer pronounced morphological hyperplasia signs in animals treated with ISMP or finasteride. Conclusion: The iodine-containing preparation ISMP has the ability to inhibit the development of BPH in rats although its activity is somewhat lower than that of finasteride.


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