• The Korea Journal of Herbology
• /
• v.20 no.2
• /
• pp.137-148
• /
• 2005

Objectives : The present study has been undertaken to investigate the effects of Polygoni Multiflori Radix and Polygoni Multiflori Radix Preparat on prevention of osteoporosis in ovariectomized rats. Method : In this experiment, the rats were ovariectomized. Rats were administered by 2 kinds of medicine, Polygoni Multiflori Radix and Polygoni Multiflori Radix Preparat. Results : The levels of spinal bone mineral density was significantly increased in comparison with OVX group at 6 weeks in Polygoni Multiflori Radix Preparat group. The levels of serum osteoclacin and calcium didn't show significant changes in comparison with OVX group in Polygoni Multiflori Radix and Polygoni Multiflori Radix Preparat group. The levels of serum ALP showed significant decrease in comparison with OVX group at 3 weeks in Polygoni Multiflori Radix group, and showed significant decrease in comparison with OVX group at 6 weeks in Polygoni Multiflori Radix Preparat group. The levels of serum phosphorus showed significant decrease in comparison with OVX group at 3, 6 weeks in Polygoni Multiflori Radix, and showed significant decrease in comparison with OVX group at 6 weeks in Polygoni Multiflori Radix Preparat group. The levels of urine calcium and phosphorus didn't show significant changes in comparison with OVX group in Polygoni Multiflori Radix and Polygoni Multiflori Radix Preparat group. The levels of femoral and fibula-tibial calcium showed significant increase in comparison with OVX group in Polygoni Multiflori Radix and Polygoni Multiflori Radix Preparat group. The levels of femoral phosphorus showed significant increase in comparison with OVX group in Polygoni Multiflori Radix and Polygoni Multiflori Radix Preparat group. The levels of femoral and fibula-tibial ash weight showed significant increase in comparison with OVX group in Polygoni Multiflori Radix Preparat group. And the levels of fibula-tibial ash weight showed significant increase in comparison with OVX group in Polygoni Multiflori Radix group. The levels of body weight and uterus weight didn't show significant changes in comparison with OVX group in Polygoni Multiflon Radix and Polygoni Multiflori Radix Preparat group. Conclusion : Reviewing these experimetal results, it appears that Polygoni Multiflori Radix and Polygoni Multiflori Radix Preparat have efficacy on prevention of osteoporosis. In particular Polygoni Multiflori Radix Preparat showed good efficacy in comparison with Polygoni Multiflori Radix Preparat.

• Journal of Physiology & Pathology in Korean Medicine
• /
• v.22 no.3
• /
• pp.593-599
• /
• 2008

This research was aimed to examine the effect of Polygoni Multiflori Radix extract on the blood pressure in spontaneous hypertensive rat (SHR) and norepinephrine - induced arterial contraction in rabbit. In order to investigate the effect of Polygoni Multiflori Radix on rabbit's contracted vascular ring detached from common carotid artery, vascular ring with intact or damaged endothelium was used for the experiment using organ bath. To analyze the mechanism of Polygoni Multiflori Radix-induced relaxation, Polygoni Multiflori Radix extract was infused into contracted vascular ring which had been pretreated by $N{\omega}$-nitro-L-arginine(L-NNA), Methylene blue(MB), and $Ca^{2+}$ was infused into contracted vascular ring induced by NE after treatment of Polygoni Multiflori Radix extract in $Ca^{2+}$-free solution. The results were as follows: Systolic blood pressure was significantly attenuated by administration of Polygoni Multiflori Radix. Blood flow and aldosterone were significantly decreased, but velocity and renin were not affected by Polygoni Multiflori Radix. Polygoni Multiflori Radix had an effective relaxation to the contracted vascular ring by NE in 0.03 mg/ml, 0.1 mg/ml and 0.3 mg/ml level. Polygoni Multiflori Radix had an effective relaxation to the intact endothelium vascular ring, but when endothelium was removed, vascular ring did not relax. Polygoni Multiflori Radix-induced relaxation was inhibited by the pretreatment of L-NNA and MB. Pretreatment of Polygoni Multiflori Radix extract inhibit the contraction by influx of extra-$Ca^{2+}$ in contracted vascular ring induced by NE in $Ca^{2+}$-free solution. As mentioned above, we suggest that Polygoni Multiflori Radix relaxes vascular ring through suppress influx of extra-cellular $Ca^{2+}$ by the action of nitric oxide from endothelium.

• The Journal of Korean Medicine
• /
• v.16 no.1 s.29
• /
• pp.425-436
• /
• 1995

In order to evaluate the effect of Polygoni Multiflori Radix on the atherosclerosis induced by high cholesteol diet, rabbits were fed with 4% cholesterol diet, 4% cholesterol-4% Polygoni Multiflori Radix diet during 12 weeks. After 12 weeks, histological changes in coronary artery of rabbits were studied. The results were obtained as follows; 1. At the area % of lumen in coronary arteries, Polygoni Multiflori Radix group showed significant inhibitory effect against decrease of area % in control group. 2. At the atheroma formation in coronary arteries, Polygoni Multiflori Radix group showed decrease effect as compared with control group. 3. At the mucoprotein formation in wall of coronary arteries, Polygoni Multiflori Radix group showed decrease effect as compared with control group. 4. At the lesion of elastic fibers in coronary arteries, Polygoni Multiflori Radix group didn't show effective changes as compared with control group.

• The Journal of Korean Medicine
• /
• v.26 no.3 s.63
• /
• pp.146-161
• /
• 2005

Objectives : This study investigated neuroprotective effects of Polygoni Multiflori Radix on cerebral ischemia of hyperlipidemic rats. Methods : Effects of Polygoni Multiflori Radix were evaluated with changes of infarct size after He focal cerebral ischemia induced by the middle cerebral artery occlusion, changes of pyramidal neurons and expressions of Bax and Bcl-2 apoptosis regulating factors after global cerebral ischemia, and changes of serum lipid revels after cerebral ischemia. Results & Conclusions : Results obtained were as follows; 1. Polygoni Multiflori Radix did net reduce the focal cerebral infarct size induced by the middle cerebral artery occlusion under both hyperlipidemic and normal-lipid conditions. 2. Polygoni Multiflori Radix significantly reduced the increase of neuronal cell death in CAl region of hippocampus induced by the global cerebral ischemia under both hyperlipidemic and normal-lipid conditions. 3. Polygoni Multiflori Radix significantly reduced the increase of Bax expression in the CAl region of the hippocampus induced by global cerebral ischemia under both hyperlipidemic and normal-lipid conditions. 4. Polygoni Multiflori Radix significantly increased Bc1-2 expression in the CA1 region of the hippocampus after global cerebral ischemia under normal-lipid condition, but was not effective on that under hyperlipidemic condition. 5. Polygoni Multiflori Radix was not effective on serum total-cholesterol, HDL-cholesterol, LDL-cholesterol and triglyceride levels under normal-lipid conditions, irrespective of focal cerebral infarct or global cerebral ischemia. 6. Polygoni Multiflori Radix significantly reduced the increase of serum total-cholesterol and triglyceride levels, and increased serum LDL-cholesterol level under hyperlipidemic conditions, irrespective of foc31 cerebral infarct or global cerebral ischemia.

• Korean Journal of Pharmacognosy
• /
• v.34 no.4 s.135
• /
• pp.278-281
• /
• 2003

Cynanchi Wilfordii Radix has been used for the treatment of prematurely grey hair, bald and constipation and Polygoni Multiflori Radix has been used for the treatment of weakness, knee pain, premature greying, elevated serum cholesterol, coronary heart disease, naurasthenia and insominia. Pattern recognition for the analysis of Cynanchi Wilfordii Radix and Polygoni Multiflori Radix was conducted using HPLC method. Pattern of Cynanchi Wilfordii Radix and Polygoni Multiflori Radix was different and we distinguished two medicinal plants by HPLC.

• Journal of the Korean Applied Science and Technology
• /
• v.25 no.4
• /
• pp.533-538
• /
• 2008

In order to fine antioxidant and whitening agent source from nature, the comparisons of antioxidative activity and tyrosinase inhibitory activity were carried out for various ethanol extract on Polygoni Multiflori Radix, Polygonati Rhizoma and Ephedrae Herba. Comparing for three ethanol extracts, the highest electron donating ability was found at Polygonati Rhizoma (86.6%), but, the highest SOD-like ability, at the Ephedrae Herba (47.8%). Xanthine oxidase experiment exhibited 95.7% of hindrance effect in Ephedrae Herba, and 84.0% in Polygonati Rhizoma. A tyrosinase inhibitory activity assay was conducted to evaluate the whitening effects of the extracts, The tyrosinase inhibitory activity was 6.5% in the Polygoni Multiflori Radix, 32.6% in the Polygonati Rhizoma, 64.0% in the Ephedrae Herba. Based on these results, we suggest that the ethanol extracts of Polygoni Multiflori Radix, Polygonati Rhizoma and Ephedrae Herba can be used as food and cosmetic ingredients.

• Korean Journal of Pharmacognosy
• /
• v.51 no.1
• /
• pp.86-91
• /
• 2020

For toxicological evaluation, water extracts and powder from Polygoni Multiflori Radix were made and the component analysis was followed by the Korean Pharmacopoeia method. To verify the stability of the water extract and powder from Polygoni Multiflori Radix used for toxic testing, the stability test was examined after storage at room temperature and in the cold room for one year. Water extract and powder from Polygoni Multiflori Radix were found to be stable for one year. Therefore, the use of the specimen of Polygoni Multiflori Radix after preparation during the animal test turned out to be stable.

• Korean Journal of Pharmacognosy
• /
• v.31 no.3
• /
• pp.335-339
• /
• 2000

Polygoni Multiflori Radix, the root of Polygonum multiflorum Thunb., has been used as a tonic, and in the inflammation and constipation in Korea. In order to evaluate the quality of Polygoni Multiflori Radix, the method of isolation and quantitative determination of emodin as a reference standard compound has been developed. Different specimens of Polygoni Multiflori Radix were collected from twenty Korean markets and were analyzed with HPLC using the mobile phase of MeOH-water (64:36). The average content of emodin from Polygoni Multiflori Radix in Korean markets was 0.021%.

• Journal of the Korean Wood Science and Technology
• /
• v.50 no.6
• /
• pp.448-457
• /
• 2022

Yersinia enterocolitica, which causes yersiniosis, is a bacterium that produces biofilms effectively. The inhibition of biofilm formation provides a method for preventing infections with Y. enterocolitica. In this study, the inhibitory activity of Y. enterocolitica biofilm formation was investigated in a library of 140 edible plant methanol extracts including forest products. It was identified that the biofilm formation could be inhibited by 12 extracts of plants, Agastachis Herba, Agrimoniae Herba, Diospyros kaki leaves, Elsholtziae Herba, Ginkgonis Semen, Lycopi Herba, Melonis Pedicellus, Menthae Herba, Mori Radicis Cortex, Polygoni Multiflori Radix, Prunellae Spica, and Schizonepetae Spica. After changing the solvent to ethanol and water, the greatest inhibition of biofilm formation was produced by a 50% ethanol extract of Polygoni Multiflori Radix. A method to effectively prevent yersiniosis can be developed using the edible plant extracts identified in this study.

• Korean Journal of Oriental Medicine
• /
• v.9 no.1
• /
• pp.81-89
• /
• 2003

Polygoni multiflori Radix has been used as a tonic medicine. In Korea, Cynanchi wilfordii Radix have been used too. Their names are resembled, but their plant origines are different. Polygoni multiflori Radix is called 何首烏 or 赤何首烏, and Cynanchi wilfordii Radix is 白何首烏 or 白首烏. They are suggested that they had been confused using at the early days in drug history. Polygoni multiflori Radix is enclosed in the pharmacopoeias of Korea, North Korea, Chinese and Japan. The nomina of pharmacopoeias are 赤何首烏 at North Korea and 何首烏 at other countries; Korea, Chinese and Japan. Cynanchi wilfordii Radix is just enclosed in Korea and North Korea. It means that Cynanchi wilfordii Radix has been commonly prescribed in Korea and North Korea than other countries. The nomina of pharmacopoeias are 白首烏 in Korea and 白何首烏 in North Korea. The characteristics of 何首烏 in ancient herbal records are confused of Polygoni multiflori Radix and Cynanchi wilfordii Radix. But Polygoni multiflori Radix is fixed at 何首烏 later. In Korea (south and north) Cynanchi wilfordii Radix has been recorded to using in 東醫寶鑑 that was Korea traditional Medicinal book and wrote at 1613. The 白首烏 is named in chinese about 20 century, but 白何首烏 is in korea about 19 century. In these consequences, prescription of Cynanchi wilfordii Radix in Korea is earlier than Chinese and Japan, and more common consumption too. So the nomen of 白何首烏 is better properly than 白首烏 in Korean Herbal pharmacopoeia.