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  • 1
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    Neutrophil extracellular traps kill bacteria (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2004-03-06
    Description: Neutrophils engulf and kill bacteria when their antimicrobial granules fuse with the phagosome. Here, we describe that, upon activation, neutrophils release granule proteins and chromatin that together form extracellular fibers that bind Gram-positive and -negative bacteria. These neutrophil extracellular traps (NETs) degrade virulence factors and kill bacteria. NETs are abundant in vivo in experimental dysentery and spontaneous human appendicitis, two examples of acute inflammation. NETs appear to be a form of innate response that binds microorganisms, prevents them from spreading, and ensures a high local concentration of antimicrobial agents to degrade virulence factors and kill bacteria.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brinkmann, Volker -- Reichard, Ulrike -- Goosmann, Christian -- Fauler, Beatrix -- Uhlemann, Yvonne -- Weiss, David S -- Weinrauch, Yvette -- Zychlinsky, Arturo -- AI037720/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2004 Mar 5;303(5663):1532-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Microscopy Core Facility, Max Planck Institute for Infection Biology, Schumannstrasse 21/22, 10117 Berlin, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15001782" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Appendicitis/immunology ; Bacterial Proteins/metabolism ; Blood Bactericidal Activity ; Cytochalasin D/pharmacology ; Cytoplasmic Granules/metabolism ; DNA/analysis/metabolism ; Dysentery, Bacillary/immunology ; Endopeptidases/metabolism ; Histones/analysis/metabolism ; Humans ; *Immunity, Innate ; Leukocyte Elastase/analysis/metabolism ; Microscopy, Electron ; *Neutrophil Activation ; Neutrophils/chemistry/*immunology/physiology/ultrastructure ; Phagocytosis ; Rabbits ; Salmonella typhimurium/immunology/*physiology ; Shigella flexneri/immunology/*physiology ; Staphylococcus aureus/immunology/*physiology ; Virulence Factors/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Observation of a one-dimensional Tonks-Girardeau gas (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2004-07-31
    Description: We report the observation of a one-dimensional (1D) Tonks-Girardeau (TG) gas of bosons moving freely in 1D. Although TG gas bosons are strongly interacting, they behave very much like noninteracting fermions. We enter the TG regime with cold rubidium-87 atoms by trapping them with a combination of two light traps. By changing the trap intensities, and hence the atomic interaction strength, the atoms can be made to act either like a Bose-Einstein condensate or like a TG gas. We measure the total 1D energy and the length of the gas. With no free parameters and over a wide range of coupling strengths, our data fit the exact solution for the ground state of a 1D Bose gas.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kinoshita, Toshiya -- Wenger, Trevor -- Weiss, David S -- New York, N.Y. -- Science. 2004 Aug 20;305(5687):1125-8. Epub 2004 Jul 29.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Physics Department, Pennsylvania State University, University Park, PA 16802, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15284454" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
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    PAPER CURRENT
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