Inhibition of Acid Production from Oral Bacteria by Fluorapatite-derived Fluoride
نویسندگان
چکیده
منابع مشابه
Inhibition of Acid Production from Oral Bacteria
The inhibitory effect offluorapatite (FAP)-derivedfluoride upon resting cell suspensions of Streptococcus mutans incubated at pH 4.5 and 6.5 was studied using lactic acid production from 0.1% sucrose as an indicator offermentation activity. Cells incubated with FAP produced significantly less lactic acid than did cells incubated with hydroxyapatite (HAP). Addition of HAP to cell suspensions con...
متن کاملFluoride inhibition of proton-translocating ATPases of oral bacteria.
The ATPases of isolated membranes of lactic acid bacteria were found to be inhibited by fluoride in a complex manner. Among the enzymes tested, that of Streptococcus mutans GS-5 was the most sensitive to fluoride, and the initial rate of hydrolysis of ATP was reduced 50% by approximately 3 mM fluoride. The enzyme of Lactobacillus casei ATCC 4646 was the most resistant, and about 25 mM fluoride ...
متن کاملReversal by citrate of the iodoacetate and fluoride inhibition of glutamic acid production by Corynebacterium glutamicum.
Citrate reversal of iodoacetate inhibition of glutamate synthesis is nonmetabolic. Reversal of fluoride inhibition is metabolic, occurring only at low Mg concentrations.
متن کاملGROWTH INHIBITION OF PATHOGENS BY LACTIC ACID BACTERIA PRODUCING INHIBITORY SUBSTANCES
71 samples of milk and dairy products were collected from 18 cities throughout Iran. 93 strains of lactic acid bacteria (LAB) were isolated and assayed against four opportunistic patho gens including E. coli, proteus and klebsiella as gram-negative and S. aureus as a gram-positive organism. All indicators (organisms) were hospital strains. Among isolated bacteria, lactobacilli (37 isolates)...
متن کاملInteractions between oral bacteria: inhibition of Streptococcus mutans bacteriocin production by Streptococcus gordonii.
Streptococcus mutans has been recognized as an important etiological agent in human dental caries. Some strains of S. mutans also produce bacteriocins. In this study, we sought to demonstrate that bacteriocin production by S. mutans strains GS5 and BM71 was mediated by quorum sensing, which is dependent on a competence-stimulating peptide (CSP) signaling system encoded by the com genes. We also...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Dental Research
سال: 1986
ISSN: 0022-0345,1544-0591
DOI: 10.1177/00220345860650010401