• 제목/요약/키워드: Anti-oxidant Activity

검색결과 759건 처리시간 0.022초

Purification of Lovastatin from Aspergillus terreus (KM017963) and Evaluation of its Anticancer and Antioxidant Properties

  • Bhargavi, SD;Praveen, VK;Marium, Salah;Sreepriya, M;Savitha, J
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권8호
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    • pp.3797-3803
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    • 2016
  • Cervical cancer is the second most common malignancy in women worldwide and thus one of the leading causes of mortality in women. Lovastatin, a non polar, anticholesterol drug has previously been reported to exert antitumour activity in vitro. In the present study, lovastatin from Aspergillus terreus (KM017963) was purified by adsoprtion chromatography and evaluated for its anticancer and anti-oxidant properties with a human cervical cancer cell line (HeLa). Growth inhibitory and proapoptotic effects of purified lovastatin on HeLa cells were investigated by determining its influence on cell numbers, mitochondrial membrane potential (MMP), DNA fragmentation and antioxidant properties in terms of hydroxy radical scavenging effects as well as levels of total reduced glutathione. Cell cycle analysis by flow cytometry (propidium iodide staining) confirmed induction of apoptotic cell death and revealed cell cycle arrest in the G0/G1 phase. Results of the study give leads for the anticancer effects of lovastatin and its potential usefulness in the chemotherapy of cervical cancer.

주자독서환의 뇌기능 활성 및 신경세포 보호효과 (The Effects of Jujadokseo-hwan on the Activation of Brain and Neuroprotactive Effects)

  • 이유경;채중원
    • 대한한방소아과학회지
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    • 제23권3호
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    • pp.241-262
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    • 2009
  • Objectives This study is designed to investigate the effects of Jujadokseo-hwan on the brain ability and inducing oxidative stresses. Methods We measured the changes of regional cerebral blood flow and mean arterial blood pressure. Then we analyzed histological examination, immunohistochemistric response and anti-oxidant activity of Jujadokseo-hwan. Results 1. Treatment of Jujadokseo-hwan significantly increased regional cerebral blood flow but decreased mean arterial blood pressure. 2. Treatment of Jujadokseo-hwan-induced increase of regional cerebral blood flow was significantly inhibited by pretreatment with indomethacin (1 mg/kg, i.p.), an inhibitor of cyclooxygenase. 3. In histological examination through TTC stain, group I was no change, but group II showed that discolored in the most cortical part. Group III showed that decreased discolor in the cortical part. 4. In immunohistochemistric response of BDNF, group II showed that lower response effect. Group III showed that increase response effect. 5. Treatment of Jujadokseo-hwan increased proliferation rates of Glial cell effectively 6. Treatment of Jujadokseo-hwan accelerated proliferation rates of C6 cells in vitro. In addition, protective effects on cell death induced by paraquat, rotenone and hydrogen peroxide. In addition, activity of SOD were increased by treatment with Jujadokseo-hwan. Conclusions In conclusion, Jujadokseo-hwan can improve of the brain ability, learning ability, memory ability and induce ischemic brain injuries.

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In vitro anti-oxidant activity of the leaves of Dillenia indica

  • Saha, Moni Rani;Alam, Ashraful;Hasan, Raquibul;Akter, Raushanara;Hossain, Mokarram;Mazumder, Ehsanul Hoque;Rana, Sohel
    • Advances in Traditional Medicine
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    • 제9권4호
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    • pp.277-284
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    • 2009
  • The methanol extract of Dillenia indica was tested for antioxidant activity as determined by free radical scavenging of DPPH radical scavenging assay, reducing power, total antioxidant capacity measured by phosphomolybdenum method, total phenolic content and total flavonoids content determination assays. The extract showed significant activities in all antioxidant assays compared to the standard antioxidant in a dose dependent manner. In DPPH radical scavenging assay the $IC_{50}$ value of the extract was found to be 100.53${\mu}g/ml$ while ascorbic acid has the $IC_{50}$ value 58.92${\mu}g/ml$. Dillenia indica extract showed strong reducing power and total antioxidant capacity. Moreover, methanol extracts also possess high amount of phenolics and flavovonoids and expressed as gallic acid and rutin equivalent respectively. The remarkable activities exhibited in reactive oxygen species scavenging may attributed to the high amount of hydrophilic phenolics present in Dillenia indica.

KH-304의 항산화효과 및 Old rat model 에서의 Erectile dysfunction에 미치는 영향 (Effect of Water Extract of KH-304 on Anti-oxidant and Erectile dysfunction in Old Rat)

  • 이은정;이현지;김희석;황성완;황성연
    • 동의생리병리학회지
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    • 제20권4호
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    • pp.1009-1013
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    • 2006
  • The fallowing are the result of the experimental studies of KH-304 on the penile nitric oxide synthase (NOS) activity, SOD and the level of blood testosterone in old rat. KH-304 was tested for the expression and activity of eNOS, nNOS, SOD/Mn, caveol in-1, 3 in penis of old-rat. The penile expression level of the five enzyme were increased significantly after oral administration of the KH-304 100mg/kg for 100ays and the concentration of testosterone in the blood were increased. In vitro, the effect of SOD and free radical scavenging were increased significantly. Conclusively, KH-304 is capable of improving of sexual ability in old-rat.

흑삼릉의 수치에 따른 Aldose Reductase 및 항산화활성에 미치는 영향 (Effects of Sparganii Rhizoma Processed on Rat Lens Aldose Reductase and Anti-oxidant Activities)

  • 정상훈;신국현;신현경;임순성
    • 약학회지
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    • 제48권5호
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    • pp.291-296
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    • 2004
  • Sparganium stoloniferum Buch.-Ham. (Sparganiaceae) is a perennial herb which has been used as treatments for menstrual disorder, galactagogue and endometriosis in folk remedies. The Sparganii Rhizoma processed, heated with vinegar, used to different purpose compared with origin in medicine. In order to estimate the different effects between processed (PSR) and unprocessed (USR) Sparganii Rhizoma, extraction and systemic fractionation of the rhizomes were archived. Inhibitory effects of the extracts as well as the fractions of PSR and USR on rat lens aldose reductase and on rat platelet aggregation were investigated for the prevention or the treatment of chronic diabetic complications. Their antioxidant effects, measured using lipid peroxidation of liver tissue and radical scavenging activities on 1,1-diphenyl-picrylhydrazyl in vitro, were evaluated. The most of biological activities tested except rat platelet aggregation, fractions from PSR were shown to exhibit stronger activities than those from USR. It seems that caused by changing of the chemical components by heating process in conditioned with acetic acid. Compounds isolated were shown to significant inhibitory activity on rat lens aldose reductase. Inhibitory activity of compounds isolated on rat lens aldose reductase have been tested in vitro. $IC_{50}$/ (6.31 $\mu$M) of cerebroside I (V) was nearly equal to that (6.32 $\mu$M) of a reference compound, tetrametbylene glutaric acid (TMG).

Antioxidant Activities of Plant Extracts from Carlemannia tetragona and Celastrus virens

  • Lee, Sang-Soo;Yang, Hyun-Young;Kim, June-Hyun
    • 한국자원식물학회:학술대회논문집
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    • 한국자원식물학회 2019년도 추계학술대회
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    • pp.74-74
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    • 2019
  • The aim of the study was to determine the antioxidant activities of the plants with origin of the Far East. The Carlemannia tetragona Hook f., which is a species of plant in the family Carlemanniaceae and Celastrus virens which is a species of plant in the family Celastraceae were tested for antioxidant activities. Samples were prepared using 95% ethanol using DPPH (2,2-diphenyl-1-picryl-hydrazyl-hydrate free radical) assay for assessing the antioxidant activity. Ascorbic acid was used for positive control for DPPH assay. DPPH assay experiment showed that extracts of the Carlemannia tetragona Hook. f., and Celastrus virens might have anti-oxidant activity 54.5% and 258% higher, respectively, compared to control. To determine the cell toxicity of these plant extracts, MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay was used. MTT assay experiment showed that Carlemannia tetragona Hook. f., and Celastrus virens might have less toxicity 23.3% and 27.5%, respectively, compared to control. Taken together, these experiments showed that Celastrus virens extracts might have much higher antioxidant activities than Carlemannia tetragona Hook. f., with relatively lower toxicity. This implies that this study might provide a basis to develop a new powerful antioxidant candidate for human diseases therapeutics.

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Antioxidant Effect of Filipendula glaberrima Nakai Extract in HepG2 Cells

  • Hong, Mijin;Hwang, Dahyun
    • 대한의생명과학회지
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    • 제28권1호
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    • pp.25-33
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    • 2022
  • The imbalance of oxidative stress due to the excessive production of reactive oxygen species (ROS) leads to the pathogenesis of liver disease. To prevent this, the role of antioxidant mechanisms is important. Antioxidant studies have been reported on the Filipendula glaberrima Nakai. However, studies applied to HepG2 cells, which are human liver cells, have not yet been conducted. In this study, 70% ethanol extract of Filipendula glaberrima Nakai (FGE) was prepared and antioxidant activity was investigated. It was confirmed whether FGE pretreatment could reduce hydrogen peroxide-induced oxidative stress in HepG2 cells. The increase in gene expression of antioxidant biomarkers and the scavenging ability of ROS were measured, and Hoechst 33342 staining was used to know the inhibitory effect of the apoptosis. As a result, FGE significantly increased SOD (2.6-fold), CAT (4.4-fold), MT-1A (3.1-fold), GPx (4-fold), and G6PD (2.4)-fold compared to the H2O2-treated group. FGE directly inhibited ROS production from 13.4 to 3.6 (the fluorescence mean of DCF-DA) and also reduced apoptotic cells from 45% to 10% (Hoechst 33342 staining) at 2.5 ㎍/mL. These results demonstrate the excellent antioxidant activity of FGE and show that it can be used as a functional food to prevent liver disease.

보리새싹 함유 녹즙의 항산화력 분석에 관한 연구 (Study of Anti-oxidant Analysis to Vegetable Juice Containing Barley Sprouts)

  • 유인식;백청목;정미연;권상철
    • 한국산학기술학회논문지
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    • 제18권12호
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    • pp.248-253
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    • 2017
  • 본 연구는 보리새싹 함유 녹즙의 항산화력 분석을 위한 목적으로 수행 하였다. 실험에 사용 된 시료는 충북 진천군 소재의 CSJ 회사로 부터 공급 받아서 실험에 사용하였다. Polyphenol, Flavonoid 함량 분석결과 어성초발효새싹녹즙은 $1.075{\pm}0.174mg/mL$, $2.736{\pm}0.187\;quercetin\;mg/mL$, 유기민들레는 $1.048{\pm}0.173mg/mL$, $2.685{\pm}0.245\;quercetin\;mg/mL$, 칸앤락 $1.013{\pm}0.083\;mg/mL$, $3.624{\pm}0.237\;quercetin\;mg/mL$, 브로콜리혼합즙은 $1.494{\pm}0.255mg/mL$, $3.826{\pm}0.286\;quercetin\;mg/mL$, 보리새싹은 $1.043{\pm}0.220mg/mL$, $1.990{\pm}0.223\;quercetin\;mg/mL$의 폴리페놀과 플라보노이드 함량이 검출되었다. 항산화능 실험결과 DPPH에 대한 어성초발효새싹녹즙 전자공여능은 81.97%로 나타났으며, ABTS assay 방법에 의한 free radical 소거능을 측정한 결과 브로콜리혼합즙, 어성초발효새싹녹즙, 유기민들레, 칸앤락, 보리새싹 순으로 활성이 증가하는 것으로 나타났으나 Ascorbic acid $100{\mu}g/mL$와 비교할 때 그 효과가 비슷한 수준으로 나타났다. 통계처리는 SPSS24을 이용하여 일원배치분산분석(one-way ANOVA)을 실시하였으며, Duncan's multiple range test를 실시하였다.(p<0.05) 향후 제품들의 기능성 부재료로 사용하여 제품화하면 건강기능성 음료로서의 가치가 있음을 나타내었다.

하엽, 삼백초 및 와송으로 구성된 식물복합추출물의 항노화 화장품 소재로서의 응용성 연구 (Anti-aging Cosmetic Application of Novel Multi-herbal Extract Composed of Nelumbo nucifera Leaves, Saururus chinensis and Orostachys japonica)

  • 백민영;김준형;이대우;황재성;문은정
    • 대한화장품학회지
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    • 제43권2호
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    • pp.93-102
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    • 2017
  • 본 연구에서는 효과적이고 안전한 화장품 성분 탐색을 위해 항산화 활성 가이드라인에 따라 다양한 식물 추출물을 대상으로 효능을 확인하였으며 이 중 가장 효능이 좋은 식물을 발굴하고 이를 최적의 비율로 혼합하여 Charmzone Extract (CZE)로 명명하였다. CZE는 하엽(Nelumbo nucifera leaves), 삼백초(Saururus chinensis) 및 와송(Orostachys japonica)으로 구성된 식물복합추출물로, 본 연구에서는 CZE의 항노화 화장품 원료로서의 개발 가능성을 확인해 보고자 하였다. CZE는 자유 라디칼 소거 활성을 가지고 있었으며, 인간 각질형성세포주인 HaCaT 및 인간 섬유아세포 NHDF에서 활성산소종의 생성을 억제하고 총항산화능을 증가시켰다. 그리고 NHDF에서 제1형 프로콜라겐의 분비를 촉진하였고, B16F10 세포에서 멜라닌의 생성을 감소시켰으며, RAW264.7 세포에서 lipopolysaccharide 자극에 의한 산화질소의 생성을 농도 의존적으로 저해하였다. 또한, CZE는 HaCaT의 이동을 촉진하는 효능을 나타내었다. 결과를 종합하면, CZE는 항산화, 주름개선, 미백, 항염증 및 상처치유의 다효능을 나타내며, 이러한 효능을 통해 피부 기능을 향상시킬 수 있을 것이라고 기대된다. 그러므로 식물복합추출물 CZE는 피부 항노화용 화장품 성분으로 응용 가능하다.

Simplified the Screening and In Vitro Appraisal of Antioxidant, Cytotoxic, Thrombolytic, Antimicrobial and Membrane Stabilizing Activities of Lablab Purpures at a Time

  • Rahman, M. Saifur;Uddin, M. Gias;Alam, M. Badrul;Yoo, Jin Cheol
    • 통합자연과학논문집
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    • 제7권3호
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    • pp.173-182
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    • 2014
  • To simplify the different biological investigation of the methanolic extract and solvent-solvent partitioning of Lablab purpures (L. purpures) bark. In-vitro anti-oxidant study was determined using total DPPH radical scavenging assay. In vitro antimicrobial study was measured by observing zone of inhibition. The cytotoxic activity was studied using brine shrimp lethality bioassay and thrombolytic activity by clot disruption method. The antioxidant potential was evaluated by 1,1-diphenyl-2-picrylhydrazyl (DPPH) and Folin-Ciocalteau reagents using butylated hydroxytolune (BHT) and ascorbic acid as standards. The Aqueous soluble fraction revealed the highest free radical scavenging activity ($IC_{50}=48.76{\mu}g/mL$). The antimicrobial screening of the bark of L. purpures exhibited mild to moderate activity in test microorganisms. The CSF showed the maximum relative percentage inhibition against Salmonella parathyphi (34.2%) for bacteria and C. albicans (28.8%) for fungi whereas, lowest relative percentage inhibition against Sarcina lutea (22.0%) for bacteria and Aspergillus niger (24.4%) for fungi. In the brine shrimp lethality bioassay, The $LC_{50}$ values of Carbon tetrachloride and N-Hexane soluble fraction were found $92.18{\mu}g/mL$, and $68.95{\mu}g/mL$ respectively while the $LC_{50}$ values of standard Vincristine sulphate was $1.37{\mu}g/mL$. The methanolic extract and its organic soluble fractions of Lablab purpureus at concentration 2.0 mg/mL, significantly protected the lysis of erythrocyte membrane induced by hypotonic solution and heat as compared to the standard, acetyl salicylic acid (0.10 mg/mL). The MSF and AQSF produced 61.48 % and 53.75% inhibition of hemolysis of RBC caused by hypotonic solution respectively, whereas acetyl salicylic acid (0.10 mg/mL) showed 76.42%. Ethanol extract of L. purpures and all of its different partitions exhibited moderate thrombolytic activity of 37.25%-2.40%. Very good preliminary screening and simplified experiments were able to show the different biological activity of methanolic extract and its soluble fractions of L. purpures at a time.