Evidence for the absence of hyaluronidase activity in Porphyromonas gingivalis.

D Grenier; J Michaud

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Evidence for the absence of hyaluronidase activity in Porphyromonas gingivalis.

机译：牙龈卟啉单胞菌中缺乏透明质酸酶活性的证据。

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The aim of the present study was to evaluate the ability of Porphyromonas gingivalis to degrade hyaluronic acid. No hyaluronidase activity was detected using a turbidimetric method, whereas a standard plate assay showed a positive reaction for P. gingivalis. We postulated that the high proteolytic activity of P. gingivalis may account for this observation. A modified plate assay was designed to avoid false-positive reactions caused by proteolytic bacteria. The new assay, based on the formation of a water-insoluble salt between hyaluronic acid and the polyanion cetylpyridinium chloride, indicated that P. gingivalis does not have hyaluronidase activity. By this modified plate method, it was found that among 24 different oral bacterial species tested, Propionibacterium acnes and Prevotella oris were the only species that possess hyaluronidase activity.

机译：本研究的目的是评估牙龈卟啉单胞菌降解透明质酸的能力。使用比浊法未检测到透明质酸酶活性，而标准平板测定显示牙龈卟啉单胞菌呈阳性反应。我们推测牙龈卟啉单胞菌的高蛋白水解活性可能解释了这一现象。设计一种改良的平板检测，以避免由蛋白水解细菌引起的假阳性反应。基于透明质酸和聚阴离子十六烷基吡啶鎓氯化物之间形成水不溶性盐的新测定法表明，牙龈卟啉单胞菌不具有透明质酸酶活性。通过这种改良的平板法，发现在测试的24种不同的口腔细菌种类中，痤疮丙酸杆菌和原产的普氏杆菌是唯一具有透明质酸酶活性的物种。

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《Journal of Clinical Microbiology》 |1993年第7期|共3页
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D Grenier; J Michaud;
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中图分类医学微生物学（病原细菌学、病原微生物学）;
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4. Absence of Evidence as Evidence of Absence: A Simple Mechanism for Scalable P2P Search [C] . Ioannidis S., Marbach P. INFOCOM 2009 . 2009

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6. Evidence for the absence of hyaluronidase activity in Porphyromonas gingivalis. [O] . D Grenier, J Michaud 1993

机译：牙龈卟啉单胞菌中缺乏透明质酸酶活性的证据。
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8. Evidence for the Absence of Cerebral Glucose-6-Phosphatase Activity in Glycogen Storage Disease Type I (Von Gierke's Disease) [R] . Phelps, M. E., Mazziotta, J. C., Hawkins, R. A., 1981

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Evidence for the absence of hyaluronidase activity in Porphyromonas gingivalis.

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