• 제목/요약/키워드: College PR

검색결과 438건 처리시간 0.024초

황정(黃精)으로부터 유래한 조다당류의 선천면역 활성에 의한 유방암 세포주 전이 억제 효과 (Antimetastatic Effects of Crude Polysaccharide Isolated from Polygonati Rhizoma on 4T1 Breast Cancer Cells by Activation of Innate Immune System)

  • 지해리;황덕상;이창훈;장준복;이진무
    • 대한한방부인과학회지
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    • 제32권4호
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    • pp.1-13
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    • 2019
  • Objective: This study is aimed to investigate the anti-tumor metastasis by innate immunomodulating effects of crude polysaccharide isolated from Polygonati Rhizoma (CP-PR) on 4T1 breast cancer cells. Methods: CP-PR was isolated from Polygonati Rhizoma. Antimetastatic experiments were conducted in vivo mouse model by using 4T1 breast cancer cells. The cell viability of CP-PR was tested with normal spleen and 4T1 breast cancer cells. To observe the activation of macrophages with/without 4T1 breast cancer cells, production of tumor necrosis factor-${\alpha}$ ($TNF-{\alpha}$), interleukin-6 (IL-6), IL-10 and IL-12 were measured with enzyme-linked immunosorbent assay (ELISA), respectively. In addition, the lysis of YAC-1 cells and the production of granzymes were measured to observe the activation of natural killer (NK) cell. Results: Intravenous administration of CP-PR significantly inhibited metastasis of 4T1 breast cancer cells. In an in vitro cytotoxicity analysis, CP-PR affected the growth of normal spleen and 4T1 breast cancer cells above specific concentration. The production of $TNF-{\alpha}$, IL-6, IL-10 and IL-12 were significantly increased in macrophages with CP-PR. As compared with control, CP-PR showed significantly higher production of $TNF-{\alpha}$, IL-10 and IL-12 in macrophages co-cultured with 4T1 breast cancer cells. The lysis of YAC-1 cells and the production of granzymes were significantly up regulated by CP-PR. Conclusion: CP-PR appears to have considerable activity on the anti-metastasis by activation of innate immune system.

타액내 혈형물질 분비형 및 비분비형에 따른 이하선 타액내 Pr,Db,Pa 단백질의 유전자 빈도 (The Gene Frequency in Parotid Salivary PR, DB, PA Proteins according to Salivary Secretory Blood Components)

  • San Kim;Chang-Lyuk Yoon
    • Journal of Oral Medicine and Pain
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    • 제19권2호
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    • pp.233-244
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    • 1994
  • The purpose of this study was to evaluate the gene frequency in parotid salivary proteins according to salivary blood components and salivary blood types. Parotid and whole saliva were collected from 160 healthy Korean adults (from 20 years of age to 43). They were divided by blood type(Q,B, AB,O type). Each group contained 40 adults respectively. They were tested to the salivary secretory blood components and parotid acidic protein(Pa), proline-rich protein(Pr) and double band protein(Db) were analyzed to evaluate the distribution of phenotype using alkaline slab polyacrylamide gel electrophoresis. Results were as follows : 1. In parotid saliva, the salivary blood substances were not found. In whole saliva, secretory type was 21.9% and non-secretory type was 78.1%. : In A type blood group, secretory type 87.5% and non-secretory type 12.5%. In B type blood group, secretory type 82.5% and non-secretory type 17.5%. In AB type blood group, secretory type 85% and non-secretory type 15%. In O type blood group, secretory type 57.5% and non-secretory type 42.5%. 2. The gene frequency of parotid acidic protein(Pa) were Pa+=0.160, Pa-=0.840 and proline-rich protein(Pr) were Pr1=0.781, Pr2=0.219 and double-band protein(Db) were Db+=0.019, Db-=0.981. 3. The difference between phenotype of Pa, Pr, Db proteins and salivary secretory blood components was not statistically significant. (P>0.05) 4. The difference between phenotype of Pa, Pr, Db proteins and blood types was not statistically significant.(P>0.05)

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갈근(葛根) 추출물이 cisplatin에 의해 유도된 rat mesangial cell의 apoptosis에 미치는 영향 (Effects of Puerariae Radix extract on Cisplatin-Induced Apoptosis of Rat Mesangial Cells)

  • 홍재의;신조영;주성민;전병훈;이시형
    • 동의생리병리학회지
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    • 제24권2호
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    • pp.220-227
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    • 2010
  • Puerariae radix (PR) is a popular natural herb and a traditional food in Asia, which has antithrombotic and anti-allergic properties and stimulates estrogenic activity. One of the major side effects of cisplatin is nephrotoxicity, leading to acute renal failure. Recent study has suggested a role of ROS and p53 in renal cell injury by cisplatin. We studied that protective effects of PR on cisplatin-induced apoptosis in rat mesangial cell. Rat mesangial cell was preincubated with PR (50, 100, 150 and 200 ${\mu}g/m{\ell}$) for 12 hr and then treated with 30 ${\mu}M$ cisplatin for 24 hr. Protective effect of PR on cisplatin-induced apoptosis in ECV304 cells was determined using MTT assay, FDA-PI staining, flow cytometric analysis, caspase-3 activity assay, ROS assay and western blot. Our results showed that PR inhibited in cisplatin-induced apoptosis and ROS production in ECV304 cells. Moreover, PR reduced ERK, p38 and JNK activation that increased in cisplatin-treated rat mesangial cell. Furthermore, activation of p53 by cisplatin in rat mesangial cell was inhibited by PR treatment. These results suggest that protective effect of PR on cisplatin-induced apoptosis in rat mesangial cell may be associated with reduction of ERK, p38, JNK, p53 activation.

Thioacetamide로 유발된 간섬유증 동물 모델에서 백작약이 미치는 효능 (Effect of Paeoniae Radix Alba on a thioacetamide induced liver fibrosis mice model)

  • 이세희;이진아;신미래;서부일;노성수
    • 한국식품과학회지
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    • 제53권5호
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    • pp.544-552
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    • 2021
  • 본 연구에서 in vitro를 통해 백작약 열수 추출물의 total polyphenol, total flavonoid 함량, DPPH 및 ABTS radical 소거능 측정으로 높은 항산화능을 확인했으며, 백작약 열수 추출물 투여로 인한 AST, ALT, ammonia 및 MPO 수치의 호전을 확인하였다. 또한 간 조직을 이용한 western blot 실시 후 모든 인자에서 유의적인 차이를 확인하였다. 이 결과를 토대로, 백작약 열수 추출물이 TAA로 인한 산화적 스트레스를 Nrf2/Keap1 경로의 활성화를 통해 SIRT1/AMPK/NF-kBp65를 조절하였으며, 섬유화 관련 단백질의 발현을 억제함으로써 간섬유증에 대한 백작약 열수 추출물의 긍정적인 효과가 있음을 제시하였다. 따라서 선행 연구를 통해 TAA로 유발한 급성 간손상 동물 모델에서 간보호 효과를 나타낸 백작약 열수 추출물이 TAA로 유발한 간섬유증 동물 모델에서 산화적 스트레스 억제와 간 기능 개선을 나타냈으며 향후 후보 소재로서 가능성이 있다고 판단된다.

작약 및 포제작약의 최종당화산물 억제를 통한 피부 주름 개선 효과 (Skin Wrinkle Improvement Effect of Paeoniae radix and processed Paeoniae radix Through inhibition of Advanced glycation end products (AGEs))

  • 김수지;이아름;김수현;김경조;권오준;최준영;구진숙;노성수
    • 대한본초학회지
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    • 제32권4호
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    • pp.53-60
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    • 2017
  • Objectives : Collagen decrease of Skin appears through various path ways. One of causes may be the Advanced glycation endproducts (AGEs) that combine formation of glucose and protein. The aim of this study was to explore the prevent wrinkle formation of Paeoniae radix (PR) and heated Paeoniae radix (HPR) via AGEs path way. Methods : AGEs formation inhibitory activities of PR and HPR measured using bovine serum albumin, glucose, and fructose. To evaluate the protective effects of PR and HPR in diabetic rats induced with streptozotocin (STZ) and methyl glyoxal (MGO), SD rat were distributed into four groups. Normal rats (Nor), AGEs-induced rats (Con), AGEs-induced rats treated with 100 mg/kg PR(PR), AGEs-induced rats treated with 100 mg/kg HPR (HPR). To induce AGEs, streptozotocin (50 mg/kg) was administered intraperitoneally and after 3 days administrated 100mM methyl glyoxal for 3 weeks. Results : The oral administration of HPR inhibited AGEs in skin tissues compared with PR. The increased reactive oxygen species (ROS) levels in the serum were diminished by HPR treatment. The analyses of kidney and skin tissues proteins indicated that HPR treatment effectively reduced AGEs related protein levels as compared to that by PR treatment. Also, HPR decreased anti-oxidant related protein levels in skin tissues such as catalase, glutathione peroxidase. Moreover, it inhibited the reduction of COL1A2 by decreasing MMP-1. Conclusion : Based on these results, it was suggested that PR and HPR could have Improving effects on wrinkle formation. These evidences provide useful information for the development wrinkle formation treated agent.

갱년기 모델 유도 흰 쥐에서 갈근과 지황 복합물 및 유산소 운동이 대사이상 개선에 미치는 영향 (Effects of a Pueraria lobata-root based combination supplement containing Rehmannia glutinosa and aerobic exercise on improvement of metabolic dysfunctions in ovariectomized rats)

  • 오상아;옥향목;김혜진;이원준;권오란
    • Journal of Nutrition and Health
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    • 제48권2호
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    • pp.133-139
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    • 2015
  • 본 연구는 갈근과 지황 복합물과 유산소 운동이 난소절제로 갱년기를 유도한 흰 쥐에서 나타나는 지질 및 당대사 이상에 미치는 영향을 확인하였다. 난소절제 후 8주간 AIN-76A 식이를 급여한 결과 체중증가량, 식이섭취량, 체 지방, 혈장 LDL-C, 공복혈당 증가를 통해 갱년기 동물 모델이 유도되었음을 확인할 수 있었다. 갈근과 지황 복합물과 유산소 운동은 서로 다른 기전으로 에스트로겐 분비 저하로 나타나는 비만 및 대사이상을 정상화하는 유익한 결과를 나타냈다. 지방 조직에서 확인된 관련 기전으로는 갈근과 지황 복합물로 인한 아디포넥틴 유전자 발현 증가 및 렙틴저항 억제, 유산소 운동으로 인한 아디포넥틴 및 인슐린 수용체 유전자 발현 증가, 갈근과 지황 복합물 및 유산소 운동의 병행으로 인한 아디포넥틴 유전자 발현 증가 상승효과가 관찰되었다. 이상의 결과로 갈근과 지황 복합물과 유산소 운동의 병행은 폐경기 에스트로겐 결핍으로 인한 대사이상을 개선하는 효과가 있을 것으로 기대한다. 향후에는 폐경기 유도 동물모델의 개선과 함께 단백질 및 신호전달분자 수준에서 추가적인 기전연구가 필요할 것으로 사료된다.

병원 조직의 특성이 언론홍보실적에 미치는 영향 (Effects of Structural Characteristics on Newspaper Public Relation Activities in Hospitals)

  • 정영한;박은철;박종연;손명세;이지전
    • 한국병원경영학회지
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    • 제5권1호
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    • pp.176-199
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    • 2000
  • This study is to identify factors affecting public relations(PR) activities through newspapers among hospitals. 53 acute hospitals with more than fill beds were surveyed by telephone interview, and hospital-related articles on 4 major daily newspapers were searched in KINDS(Korea Intergrated Newspapers Database System). Hospitals' PR scores were evaluated by weighting the directoin and the number of hospitals mentioned in an articles. The scores were analysed as the outcome of PR activities by some general characteristics. The mean of PR score was 4.64, most hospitals(22, 41.5%) fell on the group scored more than 0 and less than 5. Hospitals with score under zero were 7(13.2%) and the hospitals scored over 20 point were 3(5.8%). The number of beds and area, two general characteristics of hospitals, had decisive effect on PR activities. Analysis showed hospitals over 1000 beds scored 17.06 point and this group accounted for the highest. Hospitals from 600 to 799 beds scored 2.86, with 800 to 999beds scored 1.93 and with 500 to 599 beds scored 0.59. Along with area, hospitals in Seoul scored 11.50 point, in Kyong-Ki and Incheon scored 1.50 and in the other areas scored -0.23 point. Department for PR and the number of workers in PR activities made hospitals active in PR. Hospitals with PR department scored 7.05 point, without PR department scored 0.98. Hospitals with workers who is whole responsibility over 5 scored 13.67, from 3 to 4 scored 6.54, from 1 to 2 scored 1.02, and the hospitals without workers who is whole responsibility scored 0.53. Among the characteristics related with PR activities, the assignment of a report in individual hospital had significant effect on the outcome of PR. Hospitals with assigned reporters scored 8.31 point, without them scored 1.89. Finally, the factors affecting PR score were identified by multiple regression analysis. The number of beds and the area(Seoul) were significantly associated with the score in positive direction.

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Effect of Polylysine on Scrapie Prion Protein Propagation in Spleen during Asymptomatic Stage of Experimental Prion Disease in Mice

  • Titlow, William B.;Waqas, Muhammad;Lee, Jihyun;Cho, Jae Youl;Lee, Sang Yeol;Kim, Dae-Hwan;Ryou, Chongsuk
    • Journal of Microbiology and Biotechnology
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    • 제26권9호
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    • pp.1657-1660
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    • 2016
  • Prion diseases are incurable neurodegenerative disorders. Our previous study demonstrated that polylysine was effective in prolonging the incubation period in a rodent model and in alleviating the scrapie prion protein (PrPSc) burden in the brain at the terminal stage of the disease. Here, we report that intraperitoneal administration of polylysine suppresses the accumulation of prions in the spleen during the early stages of the disease. This study supports the congruence of PrPSc inhibition by polylysine in both the spleen and brain.

Methanol Extract of Paeonia Japonica Root Protects Cultured Rat Cortical Neurons Against Oxidative Damage Induced by Hydrogen Peroxide

  • Park, Min-Su;Ban, Ju-Yeon;Lee, Ju-Hyun;Song, Kyung-Sik;Seong, Yeon-Hee
    • 한국약용작물학회지
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    • 제14권2호
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    • pp.70-76
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    • 2006
  • Paeoniae radix has been widely used for its anti-allergic, anti-inflammatory and analgesic effects, and demonstrated to have anticonvulsant, memory enhancing and anxiolytic activities. The present study was performed to examine the protective effect of methanol extract of Paeoniae radix (PR) from Paeoniae Japonica Miyabe et Takeda (Paeoniaceae) on hydrogen peroxide $(H_2O_2)-induced$ neurotoxicity using cultured rat cerebral cortical neuron. $H_2O_2$ produced a concentration-dependent reduction of neuronal viability, PR, over a concentration range of 10 to $100\;{\mu}g/ml$ showed concentration-dependent decrease of the $H_2O_2$$(100\;{\mu}M)-induced$ neuronal cell death, as assessed by a 3-[4,5-dimethylthiazol-2-yl]-2,5-di-phenyl-tetrazolium bromide assay and the number of apoptotic nuclei, evidenced by Hoechst 33342 staining. PR $(100\;{\mu}g/ml$ inhibited $100\;{\mu}M$ $H_2O_2-induced$ elevation of the cytosolic $Ca^{2+}$ concentration $([Ca^{2+}]_c)$, which was measured by a fluorescent dye, flue-4 AM. PR $(50\;{\mu}g/ml$ inhibited glutamate release into medium induced by $100\;{\mu}M$ $H_2O_2$, which was measured by HPLC, and generation of reactive oxygen species (ROS). These results suggest that PR may mitigate the $H_2O_2-induced$ neurotoxiciy by interfering with the increase of $[Ca^{2+}]_c$, and then inhibiting glutamate release and generation of ROS in cultured neurons.

온리약인 부자, 건강, 육계, 오수유의 면역조절효과 비교 (Comparison of Immunomodualtory Effects of Water-extracted Aconiti lateralis Preparata Radix, Zingiberis Rhizoma, Cinnamomi Cortex and Evodiae Fructus)

  • 손길현;신상우;권영규;김상찬;박종현
    • 동의생리병리학회지
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    • 제19권4호
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    • pp.1000-1010
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    • 2005
  • This study was carried out to investigate the comparison of immunomodualtory effects of water-extracted Aconiti lateralis Preparata Radix(PR), Zingiberis Rhizoma(ZR), Cinnamomi Cortex(CC) and Evodiae Fructus(EF). The parameter examined to assess apparent immunomodulatory effect of the water-extracted PR, ZR, CC and EF included the regulation of Nitric oxide (NO). Also, ZR and EF represent the expression of Th1/Th2 type cytokine, the change of B cell phenotype. The water-extracted PR, ZR, CC and EF inhibited NO production and iNOS protein expression in LPS stimulated RAW 264.7 macrophage cells. In the Th1 and Th2 cytokine expression, the water-extracted ZR and EF induced IL-2, IFNr and IL-10 mRNA gene expression. Therefore, it seems that the water-extracted ZR and EF have a inducing effect of Th1 and Th2 type cytokines. In the Flow cytometry analysis, the water-extracted ZR and EF changed B cell phenotype (CD45R/B220), did NOT in PR and CC. The water-extracted PR, ZR, CC and EF have a reducing effect of immune suppression cause by Methotrexate (MTX), an agent of immune suppression. These results suggest that the immunomodulatory effects of the water-extracted ZR and EF may be, in part, associated with the inducing IL-2 and IFNr mRNA gene expression In and regulation of NO production in macrophage cells.