• Title/Summary/Keyword: anti-microbial protein

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Inhibitory Activity against Protein Kinase C of Some Medicinal Plants (수종 생약의 Protein kinase C 저해활성)

  • Lee, Hyun-Sun;Ahn, Soon-Cheol;Kim, Bo-Hyun;Park, Moon-Su;Oh, Won-Keun;Yoon, Byung-Dae;Ahn, Jong-Seog;Mheen, Tae-Ick
    • Korean Journal of Pharmacognosy
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    • v.23 no.3
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    • pp.142-145
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    • 1992
  • MeOH extract of twenty medicinal herbs were screened for their effects against protein kinase C (PKC) using bleb-forming assay and PKC enzyme assay. Smilax china and Sanguisorba officinalis showed potent anti-PKC activity. Campsis grandiflora and Galla Halepensis showed moderate inhibitory effect on PKC.

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Effect of inclusion of different levels of Leucaena silage on rumen microbial population and microbial protein synthesis in dairy steers fed on rice straw

  • Nguyen, Thien Truong Giang;Wanapat, Metha;Phesatcha, Kampanat;Kang, Sungchhang
    • Asian-Australasian Journal of Animal Sciences
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    • v.30 no.2
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    • pp.181-186
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    • 2017
  • Objective: Leucaena leucocephala (Leucaena) is a perennial tropical legume that can be directly grazed or harvested and offered to ruminants as hay, silage, or fresh. However, Leucaena contain phenolic compounds, which are considered anti-nutritional factors as these may reduce intake, digestibility and thus animal performance. Therefore, the objective of this experiment was to determine effects of Leucaena silage (LS) feeding levels on rumen microbial populations, N-balance and microbial protein synthesis in dairy steers. Methods: Four, rumen fistulated dairy steers with initial weight of $167{\pm}12kg$ were randomly assigned to receive dietary treatments according to a $4{\times}4$ Latin square design. Treatments were as followings: T1 = untreated rice straw (RS; Control), T2 = 70% RS+30% LS, T3 = 40% RS+60% LS, and T4 = 100% LS. Dairy steers were fed rice straw and LS ad libitum and supplemented with concentrate at 0.2% of body weight/d. Results: Results revealed that the rumen microbial population, especially cellulolytic, proteolytic bacteria and fungal zoospores were enhanced in steers that received 60% of LS (p<0.05), whereas the amylolytic bacteria population was not affected by treatments (p>0.05). Protozoal population was linearly decreased with increasing level of LS (p<0.05). Moreover, N-balance and microbial protein synthesis were enhanced by LS feeding (p<0.05) and were the highest in 60% LS group. Conclusion: Based on this study, it could be concluded that replacement of RS with 60% LS significantly improved microbial population and microbial protein synthesis in diary steers.

Anti-oxidant, Anti-inflammation and Anti-microbial Effects of Hoangtonogak Plus Extracts (황토노각플러스 추출물의 항산화, 항염 및 항미생물 효능)

  • Cho, Jun-Hee;Lee, Ji-An
    • Journal of Convergence for Information Technology
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    • v.10 no.12
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    • pp.183-190
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    • 2020
  • This study evaluated the possibility of Hoangtonogak Plus extracts as a bioactive ingredients for cosmetic products. Methanol(MN) and hot-water(WN) extracts were analysed by DPPH/ABTS radical scavenging activity, FRAP value for anti-oxidant activity, MTT assay for cell viability, inhibition of NO production and iNOS protein expression for anti-inflammatory effect, paper disc diffusion method for anti-microbial activity against Staphylococcus aureus, Staphylococcus epidermidis and Escherichia coli.. The contents of total polyphenol of MN and WN extracts were 2.92±0.01 mgGAE/g and 1.67±0.02 mgGAE/g, respectively. DPPH, ABTS and FRAP values of MN extracts were higher than WN at each concentration. No significant cytotoxicity was observed in RAW264.7 cells. Furthermore, NO production of MN and WN at 1 mg/mL concentration was measured as 11.69 μM, 20.4 μM, respectively. In addition, MN extracts showed anti-microbial effect only on S. epidermidis. Also MN extracts suppressed iNOS protein level in a concentration-dependent manner. According to our results, the MN extracts demonstrated its potential as a natural source of antioxidant with anti-microbial and anti-inflammatory properties.

Anti-Microbial and Anti-Wrinkle Effect of Kaempferol and Kaempferol Rhamnosides isolated from Hibiscus cannabinus L. (양마에서 분리한 Kaempferol과 그 배당체의 항균 및 주름억제 효과)

  • Lee, Keun Ha;Kong, Hae Jin;Cho, Young Long;Joo, Chul Gue;Kwon, Sun Sang;Hwang, Jae Sung;Park, Chung
    • Korean Journal of Medicinal Crop Science
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    • v.20 no.6
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    • pp.454-460
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    • 2012
  • In this study, kaempferol and its rhamnosides (${\alpha}$-rhamnoisorobin, afzelin, kaempferitrin) were isolated electively by bioconversion technology from Hibiscus cannabinus L. leaves to evaluate the anti-wrinkles effects and anti-microbial effects. In order to evaluate anti-wrinkles activity, reduction of expression matrix metalloproteinase-1 (MMP-1) protein and proliferation/ pro-collagen production were investigated. Kaempferol and ${\alpha}$-rhamnoisorobin showed inhibition activity of MMP-1 generated to compared to positive control. In HaCaT cell proliferation assay, kaempferol and ${\alpha}$-rhamnoisorobin significantly promoted cell proliferation in a concentration-dependent manner. In addition, procollagen synthesis assays (by HDF-N cell) showd that TGF-${\beta}$ induced procollagen production and also, all four kinds of experimental significantly promoted procollagen synthesis in a concentration-dependent manner. Kaempferol and ${\alpha}$-rhamnoisorobin exhibited strong antimicrobial activities on five of microbes, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Candida albicans and Aspergillus niger.

Phytochemistry and Pharmacology of Moringa oleifera Lam

  • Paikra, Birendra Kumar;Dhongade, Hemant kumar J.;Gidwani, Bina
    • Journal of Pharmacopuncture
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    • v.20 no.3
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    • pp.194-200
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    • 2017
  • Moringa oleifera Lam. or munga is one of the most important plant widely cultivated in India. It belongs to family Moringaceae. This plant is widely used as nutritional herb and contains valuable pharmacological action like anti-asthmatic, anti-diabetic, hepatoprotective, anti-inflammatory, anti-fertility, anti-cancer, anti-microbial, anti-oxidant, cardiovascular, anti-ulcer, CNS activity, anti-allergic, wound healing, analgesic, and antipyretic activity, Moringa oleifera Lam. The plant is also known as Horse - radish tree, Drumstick tree. Every part of this plant contains a valuable medicinal feature. It contain rich source of the vitamin A, vitamin C and milk protein. Different types of active phytoconstituents like alkaloids, protein, quinine, saponins, flavonoids, tannin, steroids, glycosides, fixed oil and fats are present. This plant is also found in the tropical regions. Some other constituents are niazinin A, niazinin B and niazimicin A, niaziminin B. The present review discusses the phytochemical composition, medicinal uses & pharmacological activity of this plant.

Conformation of Group "a" Epitope in Hepatitis B Surface Antigen

  • Chun, Mun-Ho;Park, Won-Bong;Bok, Jin-Woo;Kim, Ha-Won;Choi, Eung-Chil;Kim, Byong-Kak
    • Archives of Pharmacal Research
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    • v.15 no.4
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    • pp.347-355
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    • 1992
  • To elucidate structure of group "a" epitope, mouse antibodies that express idiotype monoclonal antibody and anti-idiotype monoclonal antibody against the group specific "a" determinant were purified by hydroxyapatite column. To obtain hepatitis B surface antigens (HBsAg). HBsAg positive blood was sequencially purified by ammonium sulfate precipitation, hydroxyapatite, sepharose 4B column chromatography and ultracentrifugation. The major protein (p25) and glycoprotein (gp30) of HBsAg were isolated by concanavalin-A-sepharose 4B. The ability of p25-gp30 among the HBsAg to inhibit the idiotype-anti-idiotype reaction was dependent on conformation, since reduced and alkylated p25-gp30 virtualy lost their inhibitory capacity when compared to native HBsAg. The data suggest that hepatitis B antigen is a conformational antigen critically dependent upon the disulfide bonds of p25-gp30.

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Study of Distance Relationships among Domestic Radish (Raphanus sativus L.) by Analyzing its Anti-fungal Protein Gene. (항 곰팡이 단백질 유전자 분석에 의한 국내 무 품종간 유연성에 관한 연구)

  • Hwang, Cher-Won
    • Journal of Life Science
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    • v.17 no.9 s.89
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    • pp.1294-1297
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    • 2007
  • To define diversity of domestic radish, we analysis genetic relationship of anti-fungal protein genes from several domestic radish (Raphanus sativus L.) seeds. We have isolated from domestic radish (Baekwoon) anti-fungal protein named RAP[12]. In this report, we isolate RNAs and raw protein from radish seeds then, RT-PCR analysis was done with another known anti-fungal sequences of radish from Gene Bank/EMBL and anti-fun- gal, anti-yeast activity were done against Bot교tis cenerea, Saccharomyces cerevisiaeι Candida albicans with it's raw proteins. The anti-fungal activity was shown used all seeds but anti-yeast activity was shown only two seeds (Myungsan, Baekwoon). RT-PCR products (about 0.2 Kb) were not shown only two seeds. To identify the sequencing relationship of the domestic radish, we have cloned and sequenced RAP genes of the radish and analysis the sequence relationship with clustalw program. Thus we report the result that there are some different relationship between domestic radish and known other radish's anti- fungal protein[15].

Anti-Oral Microbial Activity and Anti-Inflammatory Effects of Rosmarinic Acid in Lipopolysaccharide-Stimulated MC3T3-E1 Osteoblastic Cells on a Titanium Surface

  • Jeong, Moon-Jin;Lim, Do-Seon;Heo, Kyungwon;Jeong, Soon-Jeong
    • Journal of dental hygiene science
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    • v.20 no.4
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    • pp.221-229
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    • 2020
  • Background: The purpose of this study was to investigate the anti-oral microbial activity and anti-inflammatory effects of rosmarinic acid (RA) in lipopolysaccharide (LPS)-stimulated MC3T3-E1 osteoblastic cells on a titanium (Ti) surface during osseointegration, and to confirm the possibility of using RA as a safe natural substance for the control of peri-implantitis (PI) in Ti-based dental implants. Methods: A disk diffusion test was conducted to confirm the antimicrobial activity of RA against oral microorganisms. In order to confirm the anti-inflammatory effects of RA, inflammatory conditions were induced with 100 ng/ml of LPS in MC3T3-E1 osteoblastic cells on the Ti surface treated with or without 14 ㎍/ml of RA. The production of nitric oxide (NO) and prostaglandin E2 (PGE2) in LPS-stimulated MC3T3-E1 osteoblastic cells on the Ti surface was confirmed using an NO assay kit and PGE2 enzyme-linked immunosorbent assay kit. Reverse transcription polymerase chain reaction and western blot analysis were performed to confirm the expression of interleukin (IL)-1β and tumor necrosis factor (TNF)-α in total RNA and protein. Results: RA showed weak antimicrobial effects against Streptococcus mutans and Escherichia coli, but no antimicrobial activity against the bacteria Aggregatibacter actinomycetemcomitans and the fungus Candida albicans. RA reduced the production of pro-inflammatory mediators, NO and PGE2, and proinflammatory cytokines, TNF-α and IL-1β, in LPS-stimulated MC3T3-E1 osteoblastic cells on the Ti surface at the protein and mRNA levels. Conclusion: RA not only has anti-oral microbial activity, but also anti-inflammatory effects in LPS-stimulated MC3T3-E1 osteoblasts on the Ti surface, therefore, it can be used as a safe functional substance derived from plants for the prevention and control of PI for successful Ti-based implants.

Gossypol Induces Apoptosis of Human Pancreatic Cancer Cells via CHOP/Endoplasmic Reticulum Stress Signaling Pathway

  • Lee, Soon;Hong, Eunmi;Jo, Eunbi;Kim, Z-Hun;Yim, Kyung June;Woo, Sung Hwan;Choi, Yong-Soo;Jang, Hyun-Jin
    • Journal of Microbiology and Biotechnology
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    • v.32 no.5
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    • pp.645-656
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    • 2022
  • Gossypol, a natural phenolic aldehyde present in cotton plants, was originally used as a means of contraception, but is currently being studied for its anti-proliferative and anti-metastatic effects on various cancers. However, the intracellular mechanism of action regarding the effects of gossypol on pancreatic cancer cells remains unclear. Here, we investigated the anti-cancer effects of gossypol on human pancreatic cancer cells (BxPC-3 and MIA PaCa-2). Cell counting kit-8 assays, annexin V/propidium iodide staining assays, and transmission electron microscopy showed that gossypol induced apoptotic cell death and apoptotic body formation in both cell lines. RNA sequencing analysis also showed that gossypol increased the mRNA levels of CCAAT/enhancer-binding protein homologous protein (CHOP) and activating transcription factor 3 (ATF3) in pancreatic cancer cell lines. In addition, gossypol facilitated the cleavage of caspase-3 via protein kinase RNA-like ER kinase (PERK), CHOP, and Bax/Bcl-2 upregulation in both cells, whereas the upregulation of ATF was limited to BxPC-3 cells. Finally, a three-dimensional culture experiment confirmed the successful suppression of cancer cell spheroids via gossypol treatment. Taken together, our data suggest that gossypol may trigger apoptosis in pancreatic cancer cells via the PERK-CHOP signaling pathway. These findings propose a promising therapeutic approach to pancreatic cancer treatment using gossypol.

An Experimental Study on the Anti-inflammatory, Anti-pruritic and Anti-microbial Effects of the Three Herbal Prescription: Eunhwasagan-tang (EST), Sobokchukeo-tang (SCT), Wandae-tang (WDT) (대하(帶下) 처방 3종의 항염, 항소양, 항균 효능에 관한 실험 연구 : 은화사간탕(銀花瀉肝湯), 소복축어탕(少腹逐瘀湯), 완대탕(完帶湯))

  • Lee, Eun-Kyu;Park, Chan-Wook;Kim, Soo-Hyeon;Choi, Yoo-Jin;Park, Kyung-Mi;Yang, Seung-Jeong;Cho, Seong-Hee
    • The Journal of Korean Obstetrics and Gynecology
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    • v.32 no.3
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    • pp.32-56
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    • 2019
  • Objectives: The purpose of this study was to investigate the in vitro anti-inflammatory, anti-pruritic and antimicrobial effects of the three herbal prescription (EST, SCT, WDT), which has been traditionally used for treating leukorrhea induced by various infections in the female genital tract. Methods: In this experiment, the anti-inflammatory effects were evaluated by Nitric oxide (NO), $Interlukine-1{\beta}$ ($IL-1{\beta}$), Interlukine-2 (IL-2), Interlukine-6 (IL-6), Tumor necrosis $factor-{\alpha}$ ($TNF-{\alpha}$), Prostaglandin $E_2$ ($PGE_2$), Leukotriene $B_4$ ($LTB_4$) production amount and Inducible nitric oxide synthase (iNOS), Nuclear factor kappa B ($NF-{\kappa}B$), Cyclooxygenase-2 (COX-2) gene expression levels in RAW264.7 cells. And the anti-pruritic effects were evaluated by Histamine, Acetylcholine (ACh), Acetylcholinesterase (AChE), Substance P production amount in Mast cell/9 (MC/9) and Pheochromocytoma 12 (PC12) cells. The anti-microbial effect was measured by inhibition zone diameter on Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Candida albicans and Aspergillus niger. Results: As a result of measuring anti-inflammatory efficacy, $IL-1{\beta}$, IL-2, IL-6, $TNF-{\alpha}$, $PGE_2$, and $LTB_4$ production amounts were significantly reduced in the EST, SCT, WDT extraction groups compared with the control group, and significantly decreased the amount of $NF-{\kappa}B$, iNOS, and COX-2 gene expression and the amount of Phospho-Inhibitor kappa B alpha ($p-I{\kappa}B-{\alpha}$)/Inhibitor kappa B alpha ($I{\kappa}B-{\alpha}$) and $NF-{\kappa}B$ p65 protein expression. In addition, As a result of measuring the anti-pruritic effect, the amounts of histamine, ACh and Substance P were significantly decreased, and AChE production was slightly decreased, but it's significance did not appear. Finally the anti-microbial effects of EST, SCT, WDT extraction groups against Pseudomonas aeruginosa, Candida albicans and Aspergillus niger was inhibited, however the growth of Escherichia coli and Staphylococcus aureus was not inhibited. Conclusions: These data suggest that EST, SCT, WDT can be used to treat patients with leukorrhea.