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  1. 6881
    “…The chromatographic profile and infrared analysis of these fractions revealed the presence of sesquiterpene lactones. None of the tested extracts were active against dengue virus type 2.…”
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    In Vitro Evaluation of Antiprotozoal and Antiviral Activities of Extracts from Argentinean Mikania Species
  2. 6882
    “…The title compound, C(20)H(16)O(7), contains a cis-fused γ-lactone tetra­hydro­furan ring system functionalized with two benzo­yloxy groups. …”
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    (3S,3aS,6R,6aR)-2-Oxohexa­hydro­furo[3,2-b]furan-3,6-diyl dibenzoate
  3. 6883
    “…The title compound, C(22)H(29)NO(4), a stemona alkaloid, is composed of two lactone rings (A and E), a six-membered ring (B), a pyrrole ring (C) and a seven-membered ring (D). …”
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    Epibisde­hydro­neotuberostemonine J
  4. 6884
    “…The pathogen carried the type IV-A staphylococcal cassette chromosome mec (SCCmec) without the Panton-Valentine leukocidin (PVL) gene, and was identified as sequence type (ST) 72 by multilocus sequence typing.…”
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    A Case of Acute Pyogenic Sacroiliitis and Bacteremia Caused by Community-Acquired Methicillin-Resistant Staphylococcus aureus
  5. 6885
    “…Here we report of putative quorum sensing systems, based on the finding of six N-acyl-homoserine lactone synthetases, and show that the blue color of P. caeruleus is probably due to the production of the secondary metabolite indigoidine. …”
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    Genome sequence of Phaeobacter caeruleus type strain (DSM 24564(T)), a surface-associated member of the marine Roseobacter clade
  6. 6886
    “…This basic protocol is amenable to a high throughput (96-well) format and has been used successfully to identify multiple compounds for further analysis based on structural elements from the naturally occurring compounds lactacystin and the β-lactone homologs omuralide and salinosporamide A. …”
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    Development of Small Molecular Proteasome Inhibitors Using a Caenorhabditis elegans Screen
  7. 6887
    “…The central diazepane ring has a distorted boat conformation with two phenyl­ene-fused and one methine C atom deviating by 0.931 (1), 0.887 (1) and 0.561 (1) Å, respectively, from the mean plane of the rest of the ring. The γ-lactone ring has an envelope conformation, with the C atom opposite to amide bond deviating by 0.355 (1) Å from its plane. …”
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    Crystal strucutre of rac-methyl (11aR*,12S*,13R*,15aS*,15bS*)-11-oxo-11,11a,12,13-tetra­hydro-9H,15bH-13,15a-ep­oxy­isoindolo[1,2-c]pyrrolo[1,2-a][1,4]benzodiazepine-12-carboxyl­ate
  8. 6888
    “…His CA-MRSA was an emerging type, originated in ST121/agr4 S. aureus, with diversities of Panton–Valentine leucocidin (PVL)(−)/spat5110/SCCmecV(+) versus PVL(+)/spat159((etc.))…”
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    Emerging ST121/agr4 community-associated methicillin-resistant Staphylococcus aureus (MRSA) with strong adhesin and cytolytic activities: trigger for MRSA pneumonia and fatal aspiration pneumonia in an influenza-infected elderly
  9. 6889
    “…We describe the first pediatric case in Scandinavia with Panton-Valentine leucocidin (PVL) positive MRSA septicemia who developed bilateral pneumonia, arthritis of the knee, and osteomyelitis of the tibia. …”
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    Life-threatening MRSA sepsis with bilateral pneumonia, osteomyelitis, and septic arthritis of the knee in a previously healthy 13-year-old boy: a case report
  10. 6890
    “…Sesquiterpene lactones (SL) have a wide range of applications in anti-tumor and anti-inflammatory therapy. …”
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    Sesquiterpene binding Gly-Leu-Ser/Lys-“co-adaptation pocket” to inhibit lung cancer cell epithelial–mesenchymal transition
  11. 6891
    “…On the basis of shared responsibilities between the Federal State and the 26 cantons, this article describes the Swiss legal and regulatory approach to the right to health, the ways it is currently implemented and the possible vectors for an improved integration of migrants into the health system.…”
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    The legal and ethical aspects of the right to health of migrants in Switzerland
  12. 6892
    “…The four compounds of this family of ecdysteroids feature an unprecedented γ-lactone fused at the C-2/C-3 position of ring A. These derivatives exhibited neither antimicrobial nor cytotoxic activities.…”
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    Ecdysonelactones, Ecdysteroids from the Tropical Eastern Pacific Zoantharian Antipathozoanthus hickmani
  13. 6893
    “…ABSTRACT: Three new lactones, xylanilyticolides A–C (1–3), were isolated from cultures of the actinomycete Promicromonospora xylanilytica YIM 61515. …”
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    Xylanilyticolides A–C, Three New Compounds from Cultures of the Actinomycete Promicromonospora xylanilytica YIM 61515
  14. 6894
    “…Here we have achieved the syntheses of homochiral porous molecular solids composed of helical metal macrocycles through supramolecular chirality induction to both enantiomorphic forms with the aid of two different enantiopure sugar-derived lactones in the crystallization process. Moreover, we found that the helicity of the macrocyclic skeletons can be inverted in the crystalline state only by changing the type of solvent. …”
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    Chiral metal–macrocycle frameworks: supramolecular chirality induction and helicity inversion of the helical macrocyclic structures
  15. 6895
    “…The acid-induced rearrangement of three epoxyderivatives of nobilin 1, the most abundant sesquiterpene lactone in Anthemis nobilis flowers, was investigated. …”
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    Acid-Induced Rearrangement of Epoxygermacranolides: Synthesis of Furanoheliangolides and Cadinanes from Nobilin
  16. 6896
    “…Docking experiments showed that the 2-substituted aniline motif fits within the LuxR binding site at the place of the lactone moiety of AHL, and the biological evaluation revealed QS antagonisitic activity for several compounds, validating the hypothesis that this scaffold acts on QS. …”
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    2-Substituted Aniline as a Simple Scaffold for LuxR-Regulated QS Modulation
  17. 6897
    “…In addition, we were able to show that one of the organisms, Enterobacter sp RIT418 produces N-acyl-homoserine lactones (AHLs), which is indicative of cell-cell communication via quorum sensing (QS).…”
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    Isolation and genomic characterization of six endophytic bacteria isolated from Saccharum sp (sugarcane): Insights into antibiotic, secondary metabolite and quorum sensing metabolism
  18. 6898
    “…Ring-opening polymerization (ROP) of cyclic esters/lactones by efficient catalysts is a powerful method for synthesis of biodegradable and biocompatible polyesters with well-defined structures. …”
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    Facile Preparation of Stereoblock PLA From Ring-Opening Polymerization of rac-Lactide by a Synergetic Binary Catalytic System Containing Ureas and Alkoxides
  19. 6899
    por Cheng, Guang, Xie, Liping
    Publicado 2011
    “…Parthenolide, the principal component of sesquiterpene lactones present in medical plants such as feverfew (Tanacetum parthenium), has been reported to have anti-tumor activity. …”
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    Parthenolide Induces Apoptosis and Cell Cycle Arrest of Human 5637 Bladder Cancer Cells In Vitro
  20. 6900
    por Piotrowska, Urszula, Sobczak, Marcin
    Publicado 2014
    “…Overall, the review demonstrates that e-ROP of lactones or lactides could be an effective method for the synthesis of useful biomedical polymers.…”
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    Enzymatic Polymerization of Cyclic Monomers in Ionic Liquids as a Prospective Synthesis Method for Polyesters Used in Drug Delivery Systems
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