• Title/Summary/Keyword: Anti-fungus

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Pulmonary Aspergillosis Combined with Pulmonary Tuberculosis (폐결핵에 병발한 폐 Aspergillosis의 1치험례)

  • Jo, Kuen Hyon;Lee, Hong Kyun
    • Journal of Chest Surgery
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    • v.9 no.2
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    • pp.193-197
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    • 1976
  • Pulmonary aspergillosis is a rather uncommon disease as a saprophytic infection, mostly producing significant repeated hemoptysis and frequently combined with chronic debilitating disease or cavitary lung disease such as pulmonary tuberculosis, lung abscess and bronchiectasis. Evaluation of the characteristic symptom, X-ray finding composing intracavitary fungus ball with crescent air patch and immunologic test constitute essential part of diagnosis. Surgical resection is a successful treatment combined with administration of anti-fungal agent to eradicate completely. We present one case of surgically removed pulmonary aspergillosis showing fungus ball, superimposed on underlying pulmonary tuberculosis, with review of the related literatures.

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In vivo control of phytopathogens by using omega-3 fatty acid docosahexaenoic acid (DHA) bioconverted by Pseudomonas aeruginosa PR3

  • Kang, Sun-Chul;Kim, Hak-Ryul;Shin, Seung-Yong;Bajpai, Vivek K.
    • 한국생물공학회:학술대회논문집
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    • 2005.10a
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    • pp.497-499
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    • 2005
  • Bioconverted hydroxy fatty acid, docosahexaenoic (bDHA) obtained from the microbial conversion by Pseudomonas aeruginosa PR3 was evaluated for its in vivo anti-fungal activity. bDHA showed great potential of anti-fungal activity against phytopathogenic fungi tested in this study. bDHA at the concentration of 500 ${\mu}g/ml.$ showed remarkable anti-fungal activity against all the fungus tested.

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Anti-Inflammatory Activity of Questinol Isolated from Marine-Derived Fungus Eurotium amstelodami in Lipopolysaccharide-Stimulated RAW 264.7 Macrophages

  • Yang, Xiudong;Kang, Min-Cheol;Li, Yong;Kim, Eun-A;Kang, Sung-Myung;Jeon, You-Jin
    • Journal of Microbiology and Biotechnology
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    • v.24 no.10
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    • pp.1346-1353
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    • 2014
  • In the present study, an anthraquinone derivative, questinol was successfully isolated from the broth extract of the marine-derived fungus Eurotium amstelodami for the first time. The structure of questinol was determined based on the analysis of the MS and NMR spectral data as well as comparison of those data with the published data. Moreover, the anti-inflammatory effect of questinol in lipopolysaccharide (LPS)-stimulated RAW 264.7 cells was investigated. The results showed that questinol did not exhibit cytotoxicity in LPS-stimulated RAW 264.7 cells up to $200{\mu}M$. Questinol could significantly inhibit NO and $PGE_2$ production at indicated concentrations. Questinol was also found to inhibit the production of pro-inflammatory cytokines, including TNF-${\alpha}$, IL-1${\beta}$, and IL-6. Furthermore, the western blot analysis showed that questinol suppressed the expression level of iNOS in a dose-dependent manner. However, questinol could slightly inhibit the expression of COX-2 at the concentration of $200{\mu}M$. Therefore, our study suggests that questinol might be selected as a promising agent for the prevention and therapy of inflammatory disease.

Beauvericin, a cyclic peptide, inhibits inflammatory responses in macrophages by inhibiting the NF-κB pathway

  • Yoo, Sulgi;Kim, Mi-Yeon;Cho, Jae Youl
    • The Korean Journal of Physiology and Pharmacology
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    • v.21 no.4
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    • pp.449-456
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    • 2017
  • Beauvericin (BEA), a cyclic hexadepsipeptide produced by the fungus Beauveria bassiana, is known to have anti-cancer, anti-inflammatory, and anti-microbial actions. However, how BEA suppresses macrophage-induced inflammatory responses has not been fully elucidated. In this study, we explored the anti-inflammatory properties of BEA and the underlying molecular mechanisms using lipopolysaccharide (LPS)-treated macrophage-like RAW264.7 cells. Levels of nitric oxide (NO), mRNA levels of transcription factors and the inflammatory genes inducible NO synthase (iNOS) and interleukin (IL)-1, and protein levels of activated intracellular signaling molecules were determined by Griess assay, semi-quantitative reverse transcriptase-polymerase chain reaction (RT-PCR), luciferase reporter gene assay, and immunoblotting analysis. BEA dose-dependently blocked the production of NO in LPS-treated RAW264.7 cells without inducing cell cytotoxicity. BEA also prevented LPS-triggered morphological changes. This compound significantly inhibited nuclear translocation of the $NF-{\kappa}B$ subunits p65 and p50. Luciferase reporter gene assays demonstrated that BEA suppresses MyD88-dependent NF-${\kappa}B$ activation. By analyzing upstream signaling events for $NF-{\kappa}B$ activation and overexpressing Src and Syk, these two enzymes were revealed to be targets of BEA. Together, these results suggest that BEA suppresses $NF-{\kappa}B$-dependent inflammatory responses by suppressing both Src and Syk.

Endophytic Diaporthe sp. ED2 Produces a Novel Anti-Candidal Ketone Derivative

  • Yenn, Tong Woei;Ring, Leong Chean;Nee, Tan Wen;Khairuddean, Melati;Zakaria, Latiffah;Ibrahim, Darah
    • Journal of Microbiology and Biotechnology
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    • v.27 no.6
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    • pp.1065-1070
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    • 2017
  • This study aimed to examine the anti-candidal efficacy of a novel ketone derivative isolated from Diaporthe sp. ED2, an endophytic fungus residing in medicinal herb Orthosiphon stamieus Benth. The ethyl acetate extract of the fungal culture was separated by open column and reverse phase high-performance liquid chromatography (HPLC). The eluent at retention time 5.64 min in the HPLC system was the only compound that exhibited anti-candidal activity on Kirby-Bauer assay. The structure of the compound was also elucidated by nuclear magnetic resonance and spectroscopy techniques. The purified anti-candidal compound was obtained as a colorless solid and characterized as 3-hydroxy-5-methoxyhex-5-ene-2,4-dione. On broth microdilution assay, the compound also exhibited fungicidal activity on a clinical strain of Candida albicans at a minimal inhibitory concentration of $3.1{\mu}g/ml$. The killing kinetic analysis also revealed that the compound was fungicidal against C. albicans in a concentration- and time-dependent manner. The compound was heat-stable up to $70^{\circ}C$, but its anti-candidal activity was affected at pH 2.

Anti-inflammatory Effect of Paeoniflorigenone Isolated from Paeoniae Radix (Paeoniflorigenone 작약성분의 항염효과)

  • Kim, Ha-Yan;Han, Yong-Moon
    • YAKHAK HOEJI
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    • v.56 no.1
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    • pp.20-25
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    • 2012
  • In Northeast Asia, Paeoniae Radix has been used in treatments of inflammation-causing diseases such as arthritis for many centuries. Paeoniflorin, one of the principle bioactive monoterpene glucosides from the paeony root, is reported to be mostly responsible for the effectiveness of the treatments. However, the anti-inflammatory effect of a monoterpene, paeoniflorigenone (PFG) which partially has the moiety of paeoniflorin minus a glucose structure is unknown. Thus, the aim of this work was to investigate anti-inflammatory activity of PFG. For the investigation, PFG activity on the NO (nitric oxide) production from LPS-stimulated macrophages, and the anti-inflammatory effect was tested in the animal model of septic arthritis caused by Candida albicans, a major etiological agent for septic arthritis. For induction of the arthritis, mice were administered with an emulsion of C. albicans cell wall (CACW) mixed with Complete Freund's Adjuvant (CFA) via footpad-injection (Day 0); PFG at a dose of 0.5 or 1 mg/mouse (25 or 50 mg/kg of body-weight) was given to the animals on Day 3, 6, and 9; footpads were scored for arthritis. Moreover, the PFG effect on proliferation of T-lymphocyte that causes aggravation of arthritis was additionally tested. Data resulting from those tests showed that PFG inhibited the NO production from the stimulated macrophage in a dose dependent manner (P<0.05), indicating that PFG is an anti-inflammatory. To confirm the in-vitro results, anti-inflammatory activity of PFG was determined against C. albicans-caused septic arthritis. Data showed that PFG-treatment reduced footpad-swelling which indicates that PFG has anti-arthritic effect (P<0.05), which is therapeutic. The anti-arthritic effect appeared to be mediated by PFG suppression of T-cell proliferation. Ultimately, PFG, a monoterpene component, has anti-inflammatory activity analogous to paeoniflorin. The anti-inflammatory activity treats the septic arthritis due to a pathogenic fungus C. albicans.

Anti-obesity and Anti-diabetic Effects of the Fermented Ethanol Extracts from White Jelly Fungus (Tremella fuciformis Berk) with Lactobacillus rhamnosus BHN-LAB 76 (Lactobacillus rhamnosus BHN-LAB 76로 발효한 흰목이버섯 (Tremella fuciformis Berk) 추출물의 항비만 및 항당뇨 효과)

  • Yoon, Yeo-Cho;Kim, Byung-Hyuk;Kim, Jung-Gyu;Lee, Jun-Hyeong;Park, YeEun;Park, Hye-Suk;Hwang, Hak-Soo;Kwon, Gi-Seok;Lee, Jung-Bok
    • Microbiology and Biotechnology Letters
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    • v.47 no.3
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    • pp.323-331
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    • 2019
  • White jelly fungus (Tremella fuciformis Berk; TF) has been used as a traditional medicine in Asia; it is known to prevent hypertension, aging, cancer, and arteriosclerosis. This study aimed to investigate the anti-diabetic effects of fermented Tremella fuciformis Berk (FTF) ethanol extracts fermented with L. rhamnosus BHN-LAB 76. We show that FTF increases the ${\alpha}$-glucosidase inhibitory activity and suppress the adipogenesis of 3T3-L1 adipocytes. These inhibitory effects of FTF are accompanied by the regulation of the phosphorylation of AMPK, JNK, and Akt. These data demonstrate that FTF not only inhibits adipogenesis by affecting the adipogenic signaling, but also increases the anti-diabetic effects by regulating the insulin signaling pathway. Therefore, we suggest that the FTF can be used for developing functional food and cosmetics materials.

Anti-angiogenic activity of mycelial extracts from Cordyceps militaris, Cordyceps scarabaeicola and Paecilomyces tenuipes

  • Won, So-Young;Jung, Hyun-Joo;Soh, Jee-Hyun;Park, Eun-Hee
    • Proceedings of the PSK Conference
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    • 2003.04a
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    • pp.147.2-148
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    • 2003
  • Dongchunghacho is traditionally believed to be effective against various diseaseas. It includes many different genera such as Cordyceps, Paecilomyces, Torrubiella and Podonectria. The three fungus strains, Cordyceps militairs, Cordyceps scarabaeicola and Paecilomyces tenuipes were individually cultivated as supension cultures in potato dextrose broth. (omitted)

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Molecular Docking Study of Novel Anti-Hepatitis B Virus Agents Isolated from Talaromyces Species

  • Babu, Sathya
    • Journal of Integrative Natural Science
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    • v.9 no.1
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    • pp.23-27
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    • 2016
  • Hepatitis B virus is the leading source of liver disorders and is a global health problem and needs advancements in its treatment against increasing problems. Recently five vanitaracin derivatives were isolated from the fungus Talaromyces species which have anti-Hepatitis B virus activity. Hence, in the present study, molecular docking was carried out with five vanitaracin derivatives isolated from Talaromyces species and three known inhibitors.The objective of this work is to study the interaction of newly isolated compounds and compare its interaction with known inhibitors. The docking results revealed that vanitaracin derivatives have good interactions and has better docking score with the Hepatitis B virus and suggest SER2, SER4 and ASP30 are important residues involved in interaction with the inhibitors. These result authenticates vanitaracin derivatives contributes to inhibitory activity of Hepatitis B virus to treat liver disorders.