Abstract | BACKGROUND: This investigation is one of a series of projects seeking to ascertain whether hyaluronic acid (HA) is therapeutically effective in tissue regeneration procedures. The rationale for these investigations is to test the hypothesis that HA can serve as a bioabsorbable carrier for other substrates as well as itself actively promote the regeneration of tissue. METHODS: In this paper, we report on the bacteriostatic and bactericidal properties of 3 molecular weight formulations of recombinant HA (low, 141 kD; medium, 757 kD; and high, 1,300 kD) on selected oral and non-oral microorganisms in the planktonic phase. Three concentrations of each HA formulation were screened, 0.5, 1.0, and 2.0 mg/ml, using a standard broth culture assay. RESULTS: Recombinant HA exerted varied bacteriostatic effects on all the bacterial strains tested depending on its molecular weight (MW) and concentration. The high concentrations of the medium MW HA had the greatest bacteriostatic effect, particularly on the Actinobacillus actinomycetemcomitans, Prevotella oris, Staphylococcus aureus, and Propionibacterium acnes strains. The 1.0 mg/ml concentration of high MW HA had the greatest overall bacteriostatic effect, inhibiting the growth of all 6 bacterial strains tested. Among the bacterial strains studied, HA was found to have no bactericidal effects, regardless of concentration or molecular weight. CONCLUSIONS:
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Authors | P Pirnazar, L Wolinsky, S Nachnani, S Haake, A Pilloni, G W Bernard |
Journal | Journal of periodontology
(J Periodontol)
Vol. 70
Issue 4
Pg. 370-4
(Apr 1999)
ISSN: 0022-3492 [Print] United States |
PMID | 10328647
(Publication Type: Comparative Study, Journal Article)
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Chemical References |
- Anti-Infective Agents, Local
- Drug Carriers
- Hyaluronic Acid
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Topics |
- Aggregatibacter actinomycetemcomitans
(drug effects, growth & development)
- Analysis of Variance
- Anti-Infective Agents, Local
(administration & dosage, pharmacology)
- Bacteria, Anaerobic
(drug effects, growth & development)
- Colony Count, Microbial
- Dose-Response Relationship, Drug
- Drug Carriers
- Hyaluronic Acid
(administration & dosage, pharmacology)
- Microbial Sensitivity Tests
- Molecular Weight
- Osmolar Concentration
- Porphyromonas gingivalis
(drug effects, growth & development)
- Prevotella
(drug effects, growth & development)
- Propionibacterium
(drug effects, growth & development)
- Staphylococcus aureus
(drug effects, growth & development)
- Streptococcus mutans
(drug effects, growth & development)
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