Effects of tissue-cultured mountain ginseng (Panax ginseng CA Meyer) extract on male patients with erectile dysfunction / 亚洲男科学杂志(英文版)

Korean ginseng and mountain ginseng (Panax ginseng CA Meyer) are important traditional herbal plants whose ginsenosides are generally accepted as serving to improve sexual functions, such as penile erection. We investigated the effects of tissue-cultured mountain ginseng extract (TMGE) on male patients with erectile dysfunction (ED). A double-blind, placebo-controlled study was conducted with 143 patients experiencing ED. Over the course of 8 weeks, one group took 1 000 mg of TMGE twice a day, and the other group took 1,000 mg of placebo twice a day. The effects of the TMGE and the placebo were analyzed using the Korean version of the International Index of Erectile Function (IIEF) questionnaire. A total of 86 patients completed 8 weeks of treatment. The scores on the five domains of the IIEF after medication were significantly higher than the baseline scores in the group treated with TMGE (P<0.05), whereas no significant improvement was observed in the placebo group (P>0.05). Erectile function and overall satisfaction scores after medication were significantly higher in the TMGE group than in the placebo group (P<0.05). Erectile function of patients in the TMGE-treated group significantly improved, suggesting that TMGE could be utilized for improving erectile function in male patients.

Adventitious roots and secondary metabolism / 生物工程学报

Plants are a rich source of valuable secondary metabolites and in the recent years plant cell, tissue and organ cultures have been developed as an important alternative sources for the production of these compounds. Adventitious roots have been successfully induced in many plant species and cultured for the production of high value secondary metabolites of pharmaceutical, nutraceutical and industrial importance. Adoption of elicitation methods have shown improved synthesis of secondary metabolites in adventitious root cultures. Development of large-scale culture methods using bioreactors has opened up feasibilities of production of secondary metabolites at the industrial levels. In the present review we summarize the progress made in recent past in the area of adventitious root cultures for the production of secondary metabolites.

Ultrasonic Bone Densitometer by Measuring the Speed of Sound / 의학물리

An ultrasonic bone densitometer has been developed by measuring speed of sound signal transmitted and received on the skin, not through the horizontal axis but through the vertical one in tissue. The SOS(speed of sound) method measuring the time difference between the ultrasound signals reflected from the both sides of surface of bone could produce more precise result compared with the BUA(broadband ultrasound attenuation) method measuring the frequency difference. Middle finger is selected to be the best measurement position in order to increase the accuracy, after due consideration that the thickness of flesh at the down part of thumb shows too much variation although the ratio of the receiving signal is higher than the other fingers. The measured value by using SOS method shows almost the same result as compared with the conventional DEXA method.

Double-blind, Placebo-controlled, Multi-center Study for Therapeutic Effects of Mountain Panax Ginseng C.A. Meyer Extract in Men with Erectile Dysfunction: a Preliminary Report / 대한남성과학회지

PURPOSE: We investigated the effect of 100-year-old mountain ginseng(Panax ginseng C.A. Meyer, PG-CAM) extract on patients with erectile dysfunction(ED). MATERIALS AND METHODS: A total of 35 patients with ED(23 patients in PG-CAM administration group, 12 in placebo group) were enrolled in this double-blind study. The drug was administered for 12 weeks. Before and after administration, patients took the self-administered IIEF-5 questionnaire and were tested for serum hormone levels(testosterone, LH, FSH, estradiol), complete blood count, liver and renal function test, and urinalysis. RESULTS: The IIEF-5 scores for the placebo group were 19.7+/-2.3 and 19.9+/-3.6 before and after treatment, respectively. For all patients taking PG-CAM, IIEF-5 scores increased 18.1+/-5.6 to 20.2+/-4.5. For those patients with initial scores below 17, IIEF-5 scores increased from 12.4+/-6.2 to 19.7+/-6.7. These results indicate that PG-CAM may increase erectile function in ED patients, particularly those with poor erection. No changes were detected in hormonal levels or blood tests. No toxic side effect were reported. CONCLUSIONS: IIEF-5 score improved significantly in ED patients treated with PG-CAM, suggesting that PG-CAM extract could be a treatment candidates for ED.

Double-blind, Placebo-controlled, Multi-center Study for Therapeutic Effects of Mountain Panax Ginseng C.A. Meyer Extract in Men with Erectile Dysfunction: a Preliminary Report / 대한남성과학회지

PURPOSE: We investigated the effect of 100-year-old mountain ginseng(Panax ginseng C.A. Meyer, PG-CAM) extract on patients with erectile dysfunction(ED). MATERIALS AND METHODS: A total of 35 patients with ED(23 patients in PG-CAM administration group, 12 in placebo group) were enrolled in this double-blind study. The drug was administered for 12 weeks. Before and after administration, patients took the self-administered IIEF-5 questionnaire and were tested for serum hormone levels(testosterone, LH, FSH, estradiol), complete blood count, liver and renal function test, and urinalysis. RESULTS: The IIEF-5 scores for the placebo group were 19.7+/-2.3 and 19.9+/-3.6 before and after treatment, respectively. For all patients taking PG-CAM, IIEF-5 scores increased 18.1+/-5.6 to 20.2+/-4.5. For those patients with initial scores below 17, IIEF-5 scores increased from 12.4+/-6.2 to 19.7+/-6.7. These results indicate that PG-CAM may increase erectile function in ED patients, particularly those with poor erection. No changes were detected in hormonal levels or blood tests. No toxic side effect were reported. CONCLUSIONS: IIEF-5 score improved significantly in ED patients treated with PG-CAM, suggesting that PG-CAM extract could be a treatment candidates for ED.