Benign prostatic hyperplasia （BPH） is an age-related disease of unknown aetiology characterized by prostatic enlargement coincident with distinct alterations in tissue histomorphology. Instead of therapeutic agents ...Benign prostatic hyperplasia （BPH） is an age-related disease of unknown aetiology characterized by prostatic enlargement coincident with distinct alterations in tissue histomorphology. Instead of therapeutic agents that can cause severe side effects, plant extracts are frequently used to treat BPH. In this study, we investigated whether the Melandrium firmum methanolic extract （MFME） improves BPH, using the testosterone propionate （TP）-induced BPH rat model. Castration was performed via the scrotal route under sodium pentobarbital anaesthesia. BPH in castrated rats was generated via daily subcutaneous injections of TP （3 mg kg-1） dissolved in corn oil, for 4 weeks. MFME was administered daily by oral garage at a dose of 200 mg kg-1 for 4 weeks, along with the TP injections. The control group received injections of corn oil subcutaneously. At the scheduled termination of the experiment, all rats were killed and their prostates weighed; the relative prostate weight （prostate/body weight ratio） was calculated, and histomorphological changes in the prostate were examined. Additionally, we measured the levels of testosterone and dihydrotestosterone （DHT） in the serum and the prostate. Experimentally induced BPH led to marked decreases in the relative prostate weight and the DHT levels in the serum and the prostate. Histologically, BPH was evident in the ventral lobe of the prostate, and MFME treatment suppressed the severity of the lesions. These results indicate that MFME effectively inhibits the development of BPH induced by testosterone in a rat model. Further studies will be needed to identify the compound（s） responsibility for inducing the protective effect against BPH and determine its mechanism of action,展开更多
Autoimmune hemolytic anemia（AIHA）is uncommon but prospective fatal condition with an incidence rate of 1-3 per 100,000 persons.;（1,2）]AIHA is characterized by autoantibodies with specificity against red blood cell...Autoimmune hemolytic anemia（AIHA）is uncommon but prospective fatal condition with an incidence rate of 1-3 per 100,000 persons.;（1,2）]AIHA is characterized by autoantibodies with specificity against red blood cell（RBC）antigens leading to an increased removal of red cells from blood circulation.;（1,3）]AIHA responds well to steroids,but most patients remain steroid-dependent,and many cases require secondline treatment.Currently,splenectomy can be regarded as the most effective and best-evaluated second-line therapy,but there are still only limited data on longterm efficacy and adverse effects.The monoclonal anti-CD20 antibody rituximab,another second-line展开更多
文摘Benign prostatic hyperplasia （BPH） is an age-related disease of unknown aetiology characterized by prostatic enlargement coincident with distinct alterations in tissue histomorphology. Instead of therapeutic agents that can cause severe side effects, plant extracts are frequently used to treat BPH. In this study, we investigated whether the Melandrium firmum methanolic extract （MFME） improves BPH, using the testosterone propionate （TP）-induced BPH rat model. Castration was performed via the scrotal route under sodium pentobarbital anaesthesia. BPH in castrated rats was generated via daily subcutaneous injections of TP （3 mg kg-1） dissolved in corn oil, for 4 weeks. MFME was administered daily by oral garage at a dose of 200 mg kg-1 for 4 weeks, along with the TP injections. The control group received injections of corn oil subcutaneously. At the scheduled termination of the experiment, all rats were killed and their prostates weighed; the relative prostate weight （prostate/body weight ratio） was calculated, and histomorphological changes in the prostate were examined. Additionally, we measured the levels of testosterone and dihydrotestosterone （DHT） in the serum and the prostate. Experimentally induced BPH led to marked decreases in the relative prostate weight and the DHT levels in the serum and the prostate. Histologically, BPH was evident in the ventral lobe of the prostate, and MFME treatment suppressed the severity of the lesions. These results indicate that MFME effectively inhibits the development of BPH induced by testosterone in a rat model. Further studies will be needed to identify the compound（s） responsibility for inducing the protective effect against BPH and determine its mechanism of action,
基金Supported by the National Research Foundation of Korea(NRF) funded by the Ministry of Science,ICT&Future Planning(No.2006-2005173)
文摘Autoimmune hemolytic anemia（AIHA）is uncommon but prospective fatal condition with an incidence rate of 1-3 per 100,000 persons.;（1,2）]AIHA is characterized by autoantibodies with specificity against red blood cell（RBC）antigens leading to an increased removal of red cells from blood circulation.;（1,3）]AIHA responds well to steroids,but most patients remain steroid-dependent,and many cases require secondline treatment.Currently,splenectomy can be regarded as the most effective and best-evaluated second-line therapy,but there are still only limited data on longterm efficacy and adverse effects.The monoclonal anti-CD20 antibody rituximab,another second-line
