Research Topics
| H KooSummaryAffiliation: University of Rochester Country: USA Publications
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Detail Information
Publications
Effect of a new variety of Apis mellifera propolis on mutans StreptococciH Koo
Department of Physiological Sciences, Faculty of Dentistry of Piracicaba, State University of Campinas, Caixa Postal 52, Piracicaba, 13414 900, SP, Brazil
Curr Microbiol 41:192-6. 2000....
Effect of starch and sucrose on dental biofilm formation and on root dentine demineralizationC P Aires
Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
Caries Res 42:380-6. 2008..The findings suggest that the combination of starch with sucrose may not be more cariogenic to dentine than sucrose alone...
Effects of sucrose on the extracellular matrix of plaque-like biofilm formed in vivo, studied by proteomic analysisA F Paes Leme
Piracicaba Dental School, UNICAMP, Piracicaba, Brazil
Caries Res 42:435-43. 2008..The findings showing that sucrose affected the ECM protein composition of PLB in vivo provide further insight into the unique cariogenic properties of this dietary carbohydrate...
Antimicrobial activity of Rheedia brasiliensis and 7-epiclusianone against Streptococcus mutansL S B Almeida
Department of Physiological Sciences, Faculty of Dentistry of Piracicaba, State University of Campinas, SP, Brazil
Phytomedicine 15:886-91. 2008..mutans biofilms; however, more studies are needed to further elucidate the mechanisms of action and the anticariogenic potential of such compound found in R. brasiliensis...
A procedure for characterizing glucans synthesized by purified enzymes of cariogenic Streptococcus mutansC P Aires
Department of Physiological Sciences, Piracicaba Dental School, UNICAMP, CP 52, CEP 13414 903, Piracicaba, SP, Brazil
Int J Biol Macromol 46:551-4. 2010..The described procedure could be important focusing future studies on in vivo biofilm...
The role of sucrose in cariogenic dental biofilm formation--new insightA F Paes Leme
Faculty of Dentistry of Piracicaba, UNICAMP, Av. Limeira 901, CEP 13414-903 Piracicaba, , Brazil
J Dent Res 85:878-87. 2006..Thus, the aim of this review is to explore the broad role of sucrose in the cariogenicity of biofilms, and to present a new insight into its influence on the pathogenesis of dental caries...
Effects of Mikania genus plants on growth and cell adherence of mutans streptococciR Yatsuda
Department of Physiological Sciences, Faculty of Dentistry of Piracicaba, State University of Campinas UNICAMP, Piracicaba SP, Brazil
J Ethnopharmacol 97:183-9. 2005..Mikania genus plant is a promising source for novel antimicrobial agents against oral pathogens...
Effects of Apis mellifera propolis on the activities of streptococcal glucosyltransferases in solution and adsorbed onto saliva-coated hydroxyapatiteH Koo
Faculty of Dentistry of Piracicaba, State University of Campinas, Piracicaba, Brazil
Caries Res 34:418-26. 2000..There is a need to identify the active compounds of propolis...
Effect of saccharin on antibacterial activity of chlorhexidine gelJ A Cury
Laboratório de Bioquímica Oral, Faculdade de Odontologia de Piracicaba, UNICAMP, Piracicaba, SP, Brasil
Braz Dent J 11:29-34. 2000..These in vitro results suggest that saccharin may inhibit the efficacy of chlorhexidine against mutans streptococci, depending on the concentration...
Effect of sucrose concentration on dental biofilm formed in situ and on enamel demineralizationC P Aires
Faculty of Dentistry of Piracicaba, UNICAMP, Piracicaba, Brazil
Caries Res 40:28-32. 2006..The findings suggest that the threshold of sucrose solution concentration for the formation of a cariogenic biofilm is 5%, which provided the same cariogenic potential as that observed for 10 and 20% sucrose solution...
Some chemical composition and biological activity of northern Argentine propolisMaria I Isla
Department of Food Science, College of Food Engineering, State University of Campinas, P.O. Box 6177, 13083-970, Campinas, , Brazil
J Agric Food Chem 53:1166-72. 2005....
Effects of fluoride and aluminum from ionomeric materials on S. mutans biofilmM F Hayacibara
Faculty of Dentistry of Piracicaba, UNICAMP, Av. Limeira, 901, CEP 13414-903, Piracicaba, , Brazil
J Dent Res 82:267-71. 2003..mutans biofilms. It also significantly affected both biofilm formation and composition. Thus, this study suggests that aluminum released by ionomeric materials may enhance the biological effects of fluoride...
Strategies to enhance the biological effects of fluoride on dental biofilmsH Koo
Eastman Department of Dentistry and Center for Oral Biology, University of Rochester Medical Center, Rochester, NY 14620, USA
Adv Dent Res 20:17-21. 2008
Influences of starch and sucrose on Streptococcus mutans biofilmsS Duarte
Eastman Department of Dentistry and Center for Oral Biology, University of Rochester Medical Center, Rochester, NY 14620, USA
Oral Microbiol Immunol 23:206-12. 2008..The aim of this study was to examine the influence of starch and sucrose, alone or in combinations, on formation, polysaccharide composition, gene expression, and acidogenicity of Streptococcus mutans biofilms...
Effects of apigenin and tt-farnesol on glucosyltransferase activity, biofilm viability and caries development in ratsH Koo
Center for Oral Biology and Eastman Department of Dentistry, University of Rochester Medical Center, NY 14642, USA
Oral Microbiol Immunol 17:337-43. 2002..The incidence of smooth-surface caries was significantly reduced by apigenin +tt-farnesol (60%), fluoride (70%), and chlorhexidine (72%) treatments compared to control (P < 0.05)...
Influence of cranberry phenolics on glucan synthesis by glucosyltransferases and Streptococcus mutans acidogenicityS Gregoire
Department of Dentistry, University of Rochester Medical Center, Rochester, NY 14620, USA
J Appl Microbiol 103:1960-8. 2007..To investigate the influence of several phenolic compounds isolated from cranberry fruit (Vaccinium macrocarpon) on some of the virulence properties of Streptococcus mutans associated with glucan synthesis and acidogenicity...
Inhibition of Streptococcus mutans biofilm accumulation and polysaccharide production by apigenin and tt-farnesolH Koo
Eastman Department of Dentistry, University of Rochester Medical Center, Rochester, NY 14642, USA
J Antimicrob Chemother 52:782-9. 2003..We investigated the influence of apigenin and tt-farnesol, alone and in combination, on the accumulation, polysaccharide composition and viability of S. mutans UA159 biofilms...
Apigenin and tt-farnesol with fluoride effects on S. mutans biofilms and dental cariesH Koo
Center for Oral Biology and Eastman Dept of Dentistry, University of Rochester Medical Center, 625 Elmwood Avenue, Box 683, Rochester, NY 14620, USA
J Dent Res 84:1016-20. 2005..Results from these studies showed that apigenin and tt-farnesol may enhance the cariostatic effectiveness of fluoride...
Interactions of Streptococcus mutans glucosyltransferase B with lysozyme in solution and on the surface of hydroxyapatiteH S Kho
University of Rochester, Center for Oral Biology, Rochester, New York, N Y, USA
Caries Res 39:411-6. 2005..Therefore, the interaction of lysozyme and GtfB enzymes on HA surface may modulate the formation of glucan and dental plaque...
Influence of cranberry juice on glucan-mediated processes involved in Streptococcus mutans biofilm developmentH Koo
Center for Oral Biology and Eastman Department of Dentistry, 601 Elmwood Avenue, Box 611, University of Rochester Medical Center, Rochester, NY 14642, USA
Caries Res 40:20-7. 2006..05). Our data show that cranberry juice inhibited glucan-mediated biofilm development and acid production, and holds promise as a natural product to prevent biofilm-related oral diseases...
