The effect of para-aminobenzoic acid on growth and metabolism of Porphyromonas gingivalis / 中华口腔医学杂志
Chinese Journal of Stomatology
; (12): 275-277, 2002.
Article
in English
| WPRIM (Western Pacific)
| ID: wpr-244819
Responsible library:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To study the effect of para-aminobenzoic acid (PABA) on the growth and metabolism of Porphyromonas gingivalis (P.g).</p><p><b>METHODS</b>After adding different concentrations of PABA into the medium, anaerobic technique was applied to culture P.g. The products' A value and action of TLP was assayed, and P.g grew in the medium was observed by a scanning electron microscope.</p><p><b>RESULTS</b>PABA promoted the growth of P.g and action of TLP, which would reach the highest level when PABA was 1 mg/L, and would decrease with the increasing of concentration of PABA. When the concentration arrived at 100 mg/L, PABA had no effect on them. In the mean time, PABA had effect on the form and adherence of P.g. When the concentration was 1 mg/L and 100 mg/L, this effect was strong, but as the concentration was 10 mg/L, the effect disappeared.</p><p><b>CONCLUSIONS</b>PABA influences the growth and metabolism of P.g, which indicate that Streptococcus sanguis has regulative effect on the microecology of subgingival plaque.</p>
Full text:
Available
Database:
WPRIM (Western Pacific)
Main subject:
Streptococcus sanguis
/
4-Aminobenzoic Acid
/
Porphyromonas gingivalis
/
Dental Plaque
/
Metabolism
Language:
English
Journal:
Chinese Journal of Stomatology
Year:
2002
Document type:
Article