• Herbal Formula Science
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• v.18 no.2
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• pp.1-14
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• 2010

This report describes 57 prescriptions including Paeoniae Radix and Glycyrrhizae Radix in Dongeuibogam. Paeoniae Radix and Glycyrrhizae Radix have been used separately or concurrently in Oriental Medicine for a long time as a treatment for various disease. The following conclusions are reached through investigations on the applications of prescriptions including Paeoniae Radix and Glycyrrhizae Radix in Dongeuibogam. 1. 7 times(12.3%) prescriptions are recorded in women chapter, 6 times(10.5%) in cold chapter, 5 times(8.8%) in stool chapter and fatigue chapter each, 4 times(7.0%) in psychiatry chapter, which are arranged in order of frequency. 2. Anxiety, Yin-Yang deficiency, stroke, treating blood, cataract, fever floating due to Yin deficiency, weak and fatigue, pregnancy, abortion, women accessary disease, cold-feeling heart pain, stiffness, etc, among 51 symptoms in prescriptions including Paeoniae Radix and Glycyrrhizae Radix. 3. The dosage of Paeoniae Radix and Glycyrrhizae Radix are from 5 pun:2.5 pun to 2 nyang:1 nyang. 1 jeon:5 pun is recored 39 times(68.4%), 2 jeon:1 jeon and 1 nyang:5 jeon is 6 times(3.21%), 2 nyang:1 nyang is 2 times(1.8%) used among 57 prescriptions including Paeoniae Radix and Glycyrrhizae Radix. 4. 57 prescriptions including Paeoniae Radix and Glycyrrhizae Radix are mostly composed of Samooltang and Sagoonjatang, Gyejitang, Gamgiltang, Bowontang, Goongguitang, Jeongwoneum, Bojoongikgitang, Jigoongsan, Ijintang, Pyeongwuisan, Oryungsan, etc, according to the usage.

• Korean Journal of Plant Resources
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• v.31 no.4
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• pp.275-282
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• 2018

Paeoniae Radix has been used as a traditional medicine for various diseases including hepatic disease. However, the inhibitory effect of Paeoniae Radix on intestinal inflammation has not been fully understood yet. The aim of this study was to evaluate the effect of Paeoniae Radix on colitis induced by dextran sulfate sodium in mice. To investigate the protective effects of Paeoniae Radix, the colitis mice were induced by drinking water containing 5% dextran sulfate sodium for 7 days. Mice were randomized into groups receiving Paeoniae Radix (100 mg/kg), sulfasalazine (150 mg/kg) as a positive control, or water as a negative control. We evaluated the effects of Paeoniae Radix on clinical signs induced by dextran sulfate sodium, measuring weight loss, colon length, and disease activity index. Additionally, to find a possible explanation for the anti-inflammatory effects of Paeoniae Radix, we evaluated the effects of Paeoniae Radix on the interleukin-6 and cyclooxygenase-2 levels in colitis tissue. The results indicated that mice treated with dextran sulfate sodium showed measurable clinical signs, including weight loss and reduced colon length. However, Paeoniae Radix treatment significantly improved the weight loss and disease activity index as clinical symptoms. Moreover, Paeoniae Radix inhibited the interleukin-6 and cyclooxygenase-2 expression levels in colon tissues treated with dextran sulfate sodium. Taken together, the findings of this study suggest that Paeoniae Radix may be useful for treating intestinal inflammation, including ulcerative colitis.

• Journal of Korean Medical classics
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• v.23 no.1
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• pp.47-58
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• 2010

"Sanghanron(傷寒論)" can be approached through the understanding of the formulas. It is very important to correlate the efficacy of drugs and pathogenesis of syndrome. In this sense, the author examines the Paeoniae Radix Alba's efficacy. The Paeoniae Radix Alba[芍藥] used in Gyejitang(桂枝湯), Galgeuntang(葛根湯), Sogeonjungtang (小建中湯), Jagyakgamchotang(芍藥甘草湯) all have a similar effect. The Paeoniae Radix Alba supplies the tendon and blood meridian with bodily fluids, so it treats the stiffness and pain of the head and neck[頭項强痛], stiffness of the neck and back[項背强几几] and acute pain in the abdomen[腹中急痛] etc. Meanwhile, the Paeoniae Radix Alba treats difficulty in urination. It moistens the path to the excretion of urine included among drugs which increase digestion and transformation.

• Journal of the Korean Applied Science and Technology
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• v.31 no.1
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• pp.136-142
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• 2014

In an attempt to find natural sources of antioxidants and whitening agents, comparisons of the antioxidative and tyrosinase inhibitory activities of various ethanol extracts of Cuscutae Semen, Rubi Fructus and Paeoniae Radix were carried out. Comparison of the three ethanol extracts revealed that, Paeoniae Radix had the highest electron-donating ability(79.3%),; however, Rubi Fructus had the highest SOD-like ability(31.1%). The xanthine oxidase experiment exhibited a hindrance effect of 74.3% in Cuscutae Semen, 80.4% in Rubi Fructus and 60.8% in Paeoniae Radix. A tyrosinase inhibitory activity assay was conducted to evaluate the whitening effects of the extracts, The tyrosinase inhibitory activity was 20.1% in the Cuscutae Semen, 54.2% in the Rubi Fructus, 56.3% in the Paeoniae Radix. Based on these results, we suggest that the ethanol extracts of Cuscutae Semen, Rubi Fructus and Paeoniae Radix can be used as food and cosmetic ingredients.

• Journal of Physiology & Pathology in Korean Medicine
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• v.17 no.2
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• pp.493-498
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• 2003

Paeoniae Radix, Glycyrrhizae Radix and Jakyakgamchotang have been used in Oriental Medicine for many centuries as a treatment for various disease. The purpose of the present study is to determine the effect of Paeoniae Radix, Glycyrrhizae Radix and Jakyakgamchotang on narepinephrine(NE) induced contraction of isolated rabbit femoral artery. Rabbits (2.0kg, female) were killed by CO₂ exposure and a segment (8-10mm) of the aortic ring from each rabbit was cut into equal segments and mounted 'in pairs' in a tissue bath. Contractile force was measured with force displacement transducers under 1.5g loading tension. The dose of NE which evoked 50% of maximal response (ED/sub 50/) was obtained from cumulative dose response curves for NE (10/sup -7/～10/sup -4/M). Contractions evoked by NE (ED/sub 50/) were inhibited significantly by Paeoniae Radix, Glycyrrhizae Radix and Jakyakgamcho-tang. The mean percent inhibition of NE induced contraction was 83.9% (p<0.01) after 150㎕/㎖ Paeoniae Radix, 101.1 %(p<0.01) after 150 ㎕/㎖, Glycyrrhizae Radix and 107.3%(p<0.01) after 150㎕/㎖ Jakyakgamcho-tang, Indomethacin slightly but significantly attenuated the inhibitory effects of Paeoniae Radix. Following treatment with indomethacin, the mean percent inhibition caused by 150㎕/㎖ Paeoniae Radix fell to 16.4% in femoral artery induced by NE contraction. Propranolol, ODQ, and L-NNA did not significantly alter the inhibitory effect of Paeoniae Radix. ODQ slightly but significantly attenuated the inhibitory effects of Glycyrrhizae Radix. Following treatment with ODQ, the mean percent inhibition caused by 150㎕/㎖ Glycyrrhizae Radix fell to 13.0% in femoral artery induced by NE contraction. Propranolol, indomethacin and L-NNA did not significantly alter the inhibitory effect of Glycyrrhizae Radix. L-NNA slightly but significantly attenuated the inhibitory effects of Jakyakgamchotang. Following treatment with L-NNA, the mean percent inhibition caused by 150㎕/㎖ Jakyakgamchotang fell to 13.8% in femoral artery induced by NE contraction. Propranolol, ODQ and indomethacin did not significantly alter the inhibitory effect of Jakyakgamcho-tang. These results indicate that Paeoniae Radix, Glycyrrhizae Radix and Jakyakgamcho-tang can relax NE induced contraction of the isolated rabbit femoral artery, and that this inhibition related to nitric oxide.

• The Journal of Korean Medicine
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• v.25 no.4
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• pp.95-107
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• 2004

Objective : The inappropriate or excessive apoptosis has been known to be associated with neurodegenerative disorders including intracranial hemorrhage(ICH). Paeoniae radix, in traditional Korean medicine, has played its role as blood­nourisher and yin-astringent. In the present study, the effect of Paeoniae radix on the inhibition of neurodegeneration in the brain of rats after artificial ICH and on the resulting apoptosis was investigated. Methods : 30 rats were divided into 6 equal groups ; the sham-operation group, the hemorrhage-induction group, the hemorrhage-induction with 10, 50, 100, and 200 mg/kg Paeoniae radix-treated group, respectively. Stereotactic surgery was performed and collagenase was infused to induce ICH in the region of CA1 of hippocampus of rats. The sham group took only saline infusion. For 7 days after the surgery, 4 testing groups had intraperitoneal injections of Paeoniae radix extract. The step-down inhibitory avoidance task, measurement of neurodegeneration degree in the CA1 region of the hippocampus, and detection of caspase-3 and newly generated cells in the dentate gyrus were done after animal sacrifice. Results : Rats receiving Paeoniae radix extract showed increased latency time in the inhibitory avoidance task. The extension of neuron-deprived areas in the CA1 region was significantly suppressed in the Paeonia treated groups. Also expressions of caspase-3 in the CA1 region and cortex were significantly inhibited in the Paeonia treated groups. The cell proliferation was evaluated by means of BrdU methods and proved to be decreased in the Paeonia treated groups. Conclusion : These results suggest that Paeoniae radix has potential to suppress short-tenn memory loss after devastating neurologic accidents. Also it was proved that Paeoniae radix has a neuroprotective effect and alleviates central nervous complications following intracerebral hemorrhage. Furthermore, it may imply that this medicinal plant can be widely used for vascular dementia and other neurodegenerative disorders.

• The Journal of Internal Korean Medicine
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• v.21 no.1
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• pp.23-30
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• 2000

Objectives : To analyze the effects of Samul-Tang and combinations of constituent herbs on arterial contraction. Method : In order to investigate the effects, Angelicae gigantis Radix, Cnidii Rhizoma, Rehmanniae Radix, Paeoniae Radix, in which one of them, three of them, and all of them, were used to exam. Results : Samul-Tang significantly inhibited the contraction of artery induced by PE(phenylephrine), accordingly as the concentration of Samul-Tang increased and inhibited in both with intact and removed endothelium. Among the constituent herbs of Samul-Tang, Paeoniae Radix and Paeoniae Radix-Cnidii Rhizoma combination inhibited the PE-induced contraction of artery the most. Conclusions : Samul-Tang and constituent herbs of Samul-Tang inhibit the contraction of artery.

• Journal of Acupuncture Research
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• v.28 no.1
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• pp.77-84
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• 2011

Objectives : The objective of this study is to study the effects of hot aqueous extract and ethanol extract from Paeoniae Radix Rubra on nitric oxide(NO) and prostaglandin $E_2(PGE_2)$ production in macrophage. Methods : Paeoniae Radix Rubra were extracted in 2 ways. one was extracted with hot aqueous for 4 hr in $100^{\circ}C$ and the other one was extracted with 70% ethanol for 4 hr in $70^{\circ}C$. RAW264.7 cells, a mouse macrophage lines, were incubated with different concentrations of the extract for 30 min and then stimulated with LPS at indicated times. Cell toxicity was determined by MTT assay. The concentrations of NO and $PGE_2$ were measured by griess assay and enzyme immunoassay(EIA). Results : The hot aqueous and ethanol extracts of Paeoniae Radix Rubra significantly inhibited the NO productions in LPS-stimulated RAW264.7 cells. The hot water extract of Paeoniae Radix Rubra significantly inhibited the $PGE_2$ productions in LPS-stimulated RAW264.7 cells. Conclusions : Our results demonstrated that Paeoniae Radix Rubra extract is able to significantly inhibit the production of NO, $PGE_2$ expression. Hot aqueous extract of Paeoniae Radix Rubra has more effective anti-inflammation than ethanol extract.

• Journal of the Korean Society of Food Science and Nutrition
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• v.31 no.1
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• pp.131-135
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• 2002

This study was carried out to investigate the inhibitory effect of extracts from Paeoniae radix on postprandial hyperglycemia. Organic solvent (hexane, ethyl acetate, butanol, water) extracts from Paeoniae radix were fractionated by high performance liquid chromatography. These fractions were used to screen $\alpha$-glucosidase (EC 3.2.1.20) inhibitors by microplate colorimetric assay. The fractions 11, 12, 18, 19 of ethyl acetate extract from Paeoniae radix showed inhibitory activity by 85%, 84%, 77%, 77% at concentration of 20 $\mu\textrm{g}$/mL, respectively. The selected fractions (no. 10~no. 19) significantly reduced by 22% the blood glucose elevation in comparison with positive control in mice loaded with maltose. The fractions of Paeoniae radix were determined in vitro inhibitory activity on $\alpha$-glucosidase and in vivo inhibition effect on blood glucose elevation in mice. Therefore, these results suggest that the extract of Paeoniae radix can be used as a new nutraceutial for inhibition on postprandial hyperglycemia as well as resource pool for lead compounds as a $\alpha$-glucosidase inhibitor.

• Herbal Formula Science
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• v.18 no.2
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• pp.53-76
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• 2010

This report describes 173 formulas related to which are mainly used Paeoniae Radix in Dongeuibogam. The following conclusions were induced through investigations on the formulas that are used Paeoniae Radix as a main component. 1. We found the formulas in Dongeuibogam that Paeoniae Radix is used as a main ingredient in each prescriptions. 22 times(12.4%) of them are recorded in women's disease chapter, 20 times(11.3%) are in feces chapter, 14 times(7.9%) are in uterus, 12 times(6.8%) are in wind chapter, 10 times(5.6%) are in fatigue chapter, 9 times(5.1%) are in blood chapter, which are arranged in order of frequency. 2. Formulas that utilize Paeoniae Radix as the main ingredient are used in the treatment of women's disease, diarrhea, paralysis, yin and yang-deficiency syndrome. They are also used for treating 117 different types of diseases. 3. The dosage of Paeoniae Radix in formulas is from 1 don(nearly 3.75g) to 1 nyang 5 don (nearly 56.25g), however 1 don has been taken the most for clinical application. 4. Paeoniae Radix can make various effects with other ingredient, like fulfilling yin and blood, relaxing muscles and allaying pain. And this can be found in the formulas such as Samultang(四物湯), Jakyackgamchotang(芍藥甘草湯), Sambaektang(三白湯).