• Title/Summary/Keyword: pharmaceutical effects

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Immunopreventive Effects against Murine H22 Hepatocellular Carcinoma in vivo by a DNA Vaccine Targeting a Gastrin-Releasing Peptide

  • Meko'o, Jean Louis Didier;Xing, Yun;Zhang, Huiyong;Lu, Yong;Wu, Jie;Cao, Rongyue
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.20
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    • pp.9039-9043
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    • 2014
  • There is a continuing need for innovative alternative therapies for liver cancer. DNA vaccines for hormone/growth factor immune deprivation represent a feasible and attractive approach for cancer treatment. We reported a preventive effect of a DNA vaccine based on six copies of the B cell epitope GRP18-27 with optimized adjuvants against H22 hepatocarcinoma. Vaccination with pCR3.1-VS-HSP65-TP-GRP6-M2 (vaccine) elicited much higher level of anti-GRP antibodies and proved efficacious in preventing growth of transplanted hepatocarcinoma cells. The tumor size and weight were significantly lower (p<0.05) in the vaccine subgroup than in the control pCR3.1-VS-TP-HSP65-TP-GRP6, pCR3.1-VS-TP-HSP65-TP-M2 or saline subgroups. In addition, significant reduction of tumor-induced angiogenesis associated with intradermal tumors of H22 cells was observed. These potent effects may open ways towards the development of new immunotherapeutic approaches in the treatment of liver cancer.

Keum-Ryung-Ja-San, an Traditional Herbal Prescription, Ameliorates Depressive Behaviors in Mice

  • Jung Ji-Wook;Lee Seung-Joo;Yoon Byung-Hoon;Kim Dong-Hyun;Ryu Jong-Hoon
    • Biomolecules & Therapeutics
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    • v.14 no.2
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    • pp.114-118
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    • 2006
  • Depression is a very difficult disease to be cured because several nervous systems are involved. In the present study, we evaluated the effects of Keum-Ryung-Ja-San (KRJS), a traditional herbal prescription, on depressive behaviors in mice using the forced swimming test. KRJS was given 1 h prior to the forced swimming test (50, 100, 200, an400 mg/kg, p.o.). The duration of immobility time in the forced swimming test was significantly reduced by KRJS treatment (200 mg/kg, P<0.05) and similar effects were observed with a classical antidepressant, imipramine (15 mg/kg, i.p.). With subchronic administrations of KRJS and its constituents at several doses for 1 week, a decreased duration of immobility time was observed with KRJS and Corydalis ternata (200 mg/kg, p.o. P<0.05). These results suggest that KRJS may have antidedpressive activities and CT may contribute to the antidepressive activity of KRJS.

Impact of Amino-Acid Coating on the Synthesis and Characteristics of Iron-Oxide Nanoparticles (IONs)

  • Ebrahiminezhad, Alireza;Ghasemi, Younes;Rasoul-Amini, Sara;Barar, Jaleh;Davaran, Soodabeh
    • Bulletin of the Korean Chemical Society
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    • v.33 no.12
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    • pp.3957-3962
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    • 2012
  • Iron-oxide nanoparticles (IONs) with biocompatible coatings are the only nanostructural materials which have been approved by the FDA for clinical use. Common biocompatible coatings such as hydrocarbons, polymers, and silica have profound influences on critical characteristics of IONs. Recently, amino acids were introduced as a novel biocompatible coating. In the present study, the effects of amino acids on IONs synthesis and characteristics have been evaluated. Magnetite nanoparticles with L-arginine and L-lysine coatings were synthesised by a coprecipitation reaction in aqueous solvent and their characteristics were compared with naked magnetite nanoparticles. The results showed that amino acids can be a perfect coating for IONs and would increase particle stability without any significant effects on the critical properties of nanoparticles such as particle size and magnetization saturation value.

CNS Activities of the Aqueous Extract of Hydrilla verticillata in Mice

  • Pal, Dilipkumar;Balasaheb, Nimse Satish;Khatun, Samina;Bandyopadhyay, Pranab Kumar
    • Natural Product Sciences
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    • v.12 no.1
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    • pp.44-49
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    • 2006
  • The aqueous extract of Hydrilla verticillata (AEHV) was tested for possible pharmacological effects on experimental animals. AEHV significantly potentiated the sleeping time of mice induced by standard hypnotics viz. pentobarbitone sodium, diazepam, and meprobamate in a dose dependent manner. AEHV showed significant analgesic properties as evidenced by the significant reduction in the number of writhes and stretches induced in mice by 1.2% acetic acid solution. It also potentiated analgesia induced by morphine and pethidine in mice. Pretreatment with AEHV caused significant protection against strychnine and leptazol-induced convulsions. The behavioral studies on mice indicate CNS depressant activity of the aqueous extract of H. verticillata.

Studies on the Anti-inflammatory Effects of Drymaria cordata Willd

  • Mukherjee, Pulok K.;Mukherjee, Kakali;Bhattacharya, S.;Pal, M.;Saha, B.P.
    • Natural Product Sciences
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    • v.4 no.2
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    • pp.91-94
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    • 1998
  • In folklore medicine Drymaria cordata Willd (Family-Caryophyllaceae) is reported to have laxative and anti-febrile properties along with anti-inflammatory activities. Sikkimis used this plant to treat all these ailments. The anti-inflammatory effect of the methanol extract of D. cordata was investigated against carrageenin, histamine, serotonin, dextran and $PGE_1$ induced rat hind paw oedema. It exhibited significant anti-inflammatory activity against all these phlogestic agents except $PGE_1$ in the order of carrageenin > serotonin > histamine. All these effects were compared with standard drug phenylbutazone in both the acute and chronic experimental models in albino rats.

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Panaxcerol D from Panax ginseng ameliorates the memory impairment induced by cholinergic blockade or Aβ25-35 peptide in mice

  • Keontae Park;Ranhee Kim;Kyungnam Cho;Chang Hyeon Kong;Mijin Jeon;Woo Chang Kang;Seo Yun Jung;Dae Sik Jang ;Jong Hoon Ryu
    • Journal of Ginseng Research
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    • v.48 no.1
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    • pp.59-67
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    • 2024
  • Background: Alzheimer's disease (AD) has memory impairment associated with aggregation of amyloid plaques and neurofibrillary tangles in the brain. Although anti-amyloid β (Aβ) protein antibody and chemical drugs can be prescribed in the clinic, they show adverse effects or low effectiveness. Therefore, the development of a new drug is necessarily needed. We focused on the cognitive function of Panax ginseng and tried to find active ingredient(s). We isolated panaxcerol D, a kind of glycosyl glyceride, from the non-saponin fraction of P. ginseng extract. Methods: We explored effects of acute or sub-chronic administration of panaxcerol D on cognitive function in scopolamine- or Aβ25-35 peptide-treated mice measured by several behavioral tests. After behavioral tests, we tried to unveil the underlying mechanism of panaxcerol D on its cognitive function by Western blotting. Results: We found that pananxcerol D reversed short-term, long-term and object recognition memory impairments. The decreased extracellular signal-regulated kinases (ERK) or Ca2+/calmodulin-dependent protein kinase II (CaMKII) in scopolamine-treated mice was normalized by acute administration of panaxcerol D. Glial fibrillary acidic protein (GFAP), caspase 3, NF-kB p65, synaptophysin and brainderived neurotrophic factor (BDNF) expression levels in Aβ25-35 peptide-treated mice were modulated by sub-chronic administration of panaxcerol D. Conclusion: Pananxcerol D could improve memory impairments caused by cholinergic blockade or Aβ accumulation through increased phosphorylation level of ERK or its anti-inflammatory effect. Thus, panaxcerol D as one of non-saponin compounds could be used as an active ingredient of P. ginseng for improving cognitive function.

Literature Review on the Pharmaceutical Effect of Traditional Non-alcoholic Beverages in "Lim Won Sib Yuk Gi" ("임원십육지"를 통해서 본 우리나라 전통음료의 향약성 효과에 관한 고찰)

  • 신민자;최영진
    • Journal of the East Asian Society of Dietary Life
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    • v.8 no.2
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    • pp.81-92
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    • 1998
  • The pharmaceutical effects of non-alcoholic berverages made made in Limwonsibyukgi were studied. The type of beverage in Limwonsibyukgi were Tang(boiled herb extract), Ta(tea analog with/ without green tea), Jang(lactic acid fermented beverage), Galsoo and Suksoo. Most receipes for these beverages included boiling leaves, seeds, grains of grasses, trees and cereal, and adding honey and sugar as a sweetener, Each beverage has a pharmaceutical action : thirst elimination, enhancement of physical activity, and treatment of several diseases.

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A Rheological Study of Topical Vehicles

  • Min, Shin-Hong;Rhee, Shanghi;Kim, Yong-Bae
    • Archives of Pharmacal Research
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    • v.2 no.2
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    • pp.89-97
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    • 1979
  • To find out the rheological characteristics of several pharamaceutical semisolid products, experiments were carriedout over the temperature range of 20 to 30 .deg.C . From continuous shear rheograms obtained with a Ferranti-Shirley cone and plate viscometer, loop area, shear rates, ryild values, limiting viscosities and activation energies were calculated. The systems were metastable and their viscosity decreased with time. As the temperature was raised, products studied showed a decrease in viscosity and yield value.

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Studies on the Colorimetric Determination of Drugs with Phosphomolybdic Acid. I. Colorimetric Determination of Ampicillin with Phosphomolybdic acid

  • Lee, Wang-Kyu;Yoo, Byung-Tai;Kang, Gil-Jong
    • YAKHAK HOEJI
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    • v.18 no.3
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    • pp.190-196
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    • 1974
  • A new colorimetric method established for the determination of ampicillin was based on the reductions of phosphomolybdic acid by ampicillin to be resutled in a molybdenum blue which showed a mezimal absorbance at 770nm. The pH effects on a molybodenum blue solution was dependent significantly on temeprature, but the wave-length shift was not effected by the molybdenum blue.

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