Prof. Richard L. Gregory

Prof. Richard L. Gregory

Indiana University, USA





1982 Ph.D., Southern Illinois University

1976 B.S., Eastern Illinois University


Publications (Selected)

  1. Dowling, J.S.*, M. Hockenberry and R.L. Gregory. 2003. Sense of humor, childhood cancer stressors, and outcomes of psychosocial adjustment, immune function, and infection. J. Ped. Oncol. Nursing 20:271-292.
  2. Escalona, L.A., N.A. Warner, P. Chaiyarit and R.L. Gregory*. 2003. Determination of salivary IgA to gp120 inHIV+ and HIV- patients. Acta. Odontologica Venezolana 42:90-96.
  3. Ge, J., D.M. Catt and R.L. Gregory*. 2004. Streptococcus mutans surface a-enolase binds salivary MG2 and human plasminogen. Infect. Immun. 72:6748-6752.
  4. Olson, B.L.*, N.A. Warner, R.L. Gregory, J.L. McDonald and C.A. Zapata. 2005. Periodontal ligament fibroblast interleukin-6 release after exposure to nicotine. Oral Biosciences Med. 2:15-19.
  5. Fugaro, O.J., J.O. Fugaro, B. Matis*, R.L. Gregory, M.A. Cochran and I.A. Mjor. 2005. The dental pulp: inflammatory markers and vital bleaching. Am. J. Dent. 18:229-232.
  6. Catt, D.M. and R.L. Gregory*. 2005. Streptococcus mutans murein hydrolase. J. Bact. 187:7863-7865.
  7. Koh, I-W., Y. Oshida*, C.J. Andres and R.L. Gregory. 2008. Effect of surface area ratios and bacteria on electrochemical behavior of galvanically coupled titanium. Int. J. Prosthodont. 21:433-436. PubMed PMID: 18950067.
  8. Fontana M.*, D. Catt, G.J. Eckert, S. Ofner, M. Toro, R.L. Gregory, A. Ferreira Zandona, H. Eggertsson, R. Jackson, J. Chin, D. Zero and C. Sissons. 2009. Xylitol: effects on the acquisition of cariogenic species in infants. J. Ped. Dent. 31:257-266.PubMed PMID: 19552232.
  9. Sanui, T. and R.L. Gregory*. 2009. Analysis of Streptococcus mutans biofilm proteins recognized by salivary immunoglobulin A. Oral Microbiol. Immunol. 24:361-368. PubMed PMID: 19702948.
  10. Weng, Y., X. Guo, R.L. Gregory and D. Xie*. 2010. A novel antibacterial dental glass-ionomer cement. Eur. J. Oral Sci. 118:531-534. PubMed PMID: 20853548.
  11. Weng, Y., X. Guo, J. Zhao, R.L. Gregory and D. Xie*. 2010. A PQAS-containing glass-ionomer cement for improved antibacterial function. J. Biomedical Science and Engineering. 3:956-963. PubMed PMID: 20853548.
  12. Xie, D.*, Y. Weng, X. Guo, J. Zhao, R.L. Gregory and C. Zheng. 2011. Preparation and evaluation of a novel glass-ionomer cement with antibacterial functions. Dent. Mat. 27:487-496. PubMed PMID: 21388668.
  13. Allam, E., W. Zhang, C. Zheng, R.L. Gregory, and L.J. Windsor*. 2011. Smoking and oral health. In: Cigarette Smoke Toxicity - Linking Individual Chemicals to Human Diseases. D. Bernhard (ed.). Wiley-VCH Verlag GmbH & Co. KGaA (pub.) pp. 257-280.
  14. Huang, R., M. Li and R.L. Gregory*. 2011. Bacterial interactions in dental biofilm. Virulence 2:435-444. PubMed PMID: 21778817.
  15. Wahaidi, V.Y., G.J. Eckert, R.L. Gregory, M.J. Kowolik and D.M. Galli.  2013.  The in-vitro response of human peripheral blood neutrophils to Fusobacterium nucleatum.  Int. J. Clin. Dent. 6:59-66.
  16. McCarlie, V.W., J.K. Hartsfield, Jr., J.S. Blum, C. González-Cabezas, J.R. Chin, G.J. Eckert, L.A. Morford, M.D. Pescovitz, H. Rodriguez, M. Fontana and R.L. Gregory.  2013.  Total IgA and IgA reactivity to antigen I/II epitopes in HLA-DRB1*04 positive subjects.  Open J. Immunol. 3:82-92.
  17. Sabrah, A.H.A., G.H. Yassen and R.L. Gregory.  2013.  Effectiveness of antibiotic medicaments against biofilm formation of Enterococcus faecalis andPorphyromonas gingivalis.  J. Endo. 39:1385-1389.
  18. Bottino, M.C., K. Kamocki, G. Yassen, J.A. Platt, M.M. Vail, Y. Ehrlich, K.J. Spolnik and R.L. Gregory.  2013.  Bioactive nanofibrous scaffolds for regenerative endodontics.  J. Dent. Res. 92:963-969.
  19. Li, M., R. Huang, X. Zhou and R.L. Gregory.  2013.  Role of sortase in Streptococcus mutans under the effect of nicotine.  Int. J. Oral Sci. 5:206-211.
  20. Twigg III, H.L., D.E. Nelson, R.B. Day, R.L. Gregory, Q. Dong, R. Rong, K. Knox, K. Crothers, E. Sodergren, G. Weinstock.  2014.  Comparison of whole and acellular bronchoalveolar lavage to oral wash microbiomes:  Should acellular bronchoalveolar lavage be the standard?  Annals of the American Thoracic Society.11:S72-73.
  21. Li, M., R. Huang, X. Zhou, K. Zhang, X. Zheng and R.L. Gregory.  2014.  Effect of nicotine on dual species biofilms of Streptococcus mutans and Streptococcus sanguinis.  FEMS Microbiology Letters 350:125-132.
  22. Bottino, M.C., R.A. Arthur, R.A. Waeiss, K. Kamocki, K.S. Gregson, and R.L. Gregory.  2014.  Biodegradable nanofibrous drug delivery systems:  Effects of metronidazole and ciprofloxacin on periodontopathogens and commensal bacteria.  Clin. Oral Invest. Clin. Oral Investig. 18:2151-2158.
  23. Whatley, J.D., K.J. Spolnik, M.M. Vail, B.H. Adams, R. Huang, R.L. Gregory and Y. Ehrlich.  2014.  Susceptibility of methacrylate-based root canal filling to degradation by bacteria found in endodontic infections.  Quintessence International 45:647-652.
  24. Palasuk, J., K. Kamocki, L. Hippenmeyer, J.A. Platt, K.J. Spolnik, R.L. Gregory and M.C. Bottino.  2014.  Bi-mix antimicrobial scaffolds for regenerative endodontics.  J. Endo.  40:1879-1884.
  25. Feitosa, S.A., J. Palasuk, K. Kamocki, S. Geraldeli, R.L. Gregory, J.A. Platt, L.J. Windsor and M.C. Bottino.  2014.  Doxycycline-encapsulated nanotube modified dentin adhesives.  J. Dent. Res. 93:1270-1276.
  26. Huang, R., M. Li, M. Ye, K. Yang, X. Xin and R.L. Gregory.  2014.  Effect of nicotine on Streptococcus gordonii growth, biofilm formation and cell aggregation.  Appl. Environ. Microbiol. 80:7212-7218.
  27. Allison, L., L.A. Walker, B.J. Sanders, Z. Yang, G. Eckert and R.L. Gregory.  2015.  Effect of human milk and it’s components on Streptococcus mutans biofilm formation.  J. Clin. Ped. Dent. 39:252-258.
  28. Hamilton, M.F., A.D. Otte, R.L. Gregory, R. Pinal, A. Ferreira-Zandona and M.C. Bottino.  2015.  Physico-mechanical and antibacterial properties of experimental resin-based dental sealants modified with nylon-6 and chitosan nanofibers.  J. Biomed. Mater. Res. B Appl. Biomater. (in press).
  29. Sabrah, A.H.A., G.H. Yassen, W.C. Liu, W.S. Goebel, R.L. Gregory and J.A. Platt.  2015.  The effect of diluted triple and double antibiotic pastes on dental pulp stem cells and established Enterococcus faecalis biofilm.  Clin. Oral Investig. (in press).
  30. DuBois, A.E., Z.C. Bennett, U. Khalid, A. Khalid, R.A. Meece, G.J. DiFiore and R.L. Gregory.  2015.  Oral microorganism growth as affected by nicotine.  Fine Focus (Undergraduate Microbiology Journal) 1:63-75.
  31. Sabrah, A.H.A., G.H. Yassen, K.J. Spolnik, A.T. Hara,  J.A. Platt and R.L. Gregory.  2015.  Evaluation of residual antibacterial effect of human radicular dentin treated with triple and double antibiotic pastes.  J. Endodon. (in press).
  32. Huang, R., J. Zhang, F.X. Yang and R.L. Gregory.  2015.  PCR-based multiple species cell counting for in vitro mixed culture.  PLoS ONE 10(5): e0126628. doi:10.1371/journal.pone.0126628.
  33. Huang, R., M. Li and R.L. Gregory.  2015.  Nicotine promotes Streptococcus mutans extracellular polysaccharide synthesis, cell aggregation and overall lactate dehydrogenase activity.  Archs. Oral Biol. 60:1083-1090.
  34. Algarni, A.A., G.H. Yassen and R.L. Gregory.  2015.  Biofilm inhibition effect of suggested gels loaded with low concentration of antibiotics against Enterococcus faecalis and Porphyromonas gingivalis.  J. Oral Sci. (in press).

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