| serum antibodies reacting with subgingival species in refractory periodontitis subjects. | the purpose of this investigation was to compare the levels of serum igg antibody to 85 subgingival species in 32 refractory periodontitis, 56 successfully treated, and 33 periodontally healthy subjects. refractory subjects showed mean full mouth attachment loss and/or >3 sites showing attachment loss >2.5 mm within 1 year after 2 treatment modalities, scaling and root planing and surgery plus systemically administered tetracycline. successfully-treated subjects showed mean attachment level gain ... | 1998 | 9696261 |
| xylanibacter oryzae gen. nov., sp. nov., a novel strictly anaerobic, gram-negative, xylanolytic bacterium isolated from rice-plant residue in flooded rice-field soil in japan. | a strictly anaerobic, xylanolytic bacterium, strain kb3(t), isolated from rice-plant residue in flooded anoxic rice-field soil in japan, was characterized phenotypically and phylogenetically. cells were gram-negative, non-motile, non-spore-forming, short to filamentous rods. growth of the strain was remarkably stimulated by the addition of haemin to the medium. the novel strain utilized various sugars including xylan, xylose, pectin and carboxymethylcellulose and produced acetate, propionate and ... | 2006 | 16957124 |
| prevotella paludivivens sp. nov., a novel strictly anaerobic, gram-negative, hemicellulose-decomposing bacterium isolated from plant residue and rice roots in irrigated rice-field soil. | two strictly anaerobic bacterial strains, kb7(t) and a42, were isolated from rice plant residue and living rice roots, respectively, from irrigated rice-field soil in japan. these two strains were closely related to each other with 16s rrna gene sequence similarity of 99.8 %. both strains showed almost the same physiological properties. cells were gram-negative, non-motile, non-spore-forming rods. growth was remarkably stimulated by the addition of haemin to the medium. the strains utilized vari ... | 2007 | 17684261 |
| bacterial community development in experimental gingivitis. | current knowledge of the microbial composition of dental plaque in early gingivitis is based largely on microscopy and cultural methods, which do not provide a comprehensive description of oral microbial communities. this study used 454-pyrosequencing of the v1-v3 region of 16s rrna genes (approximately 500 bp), and bacterial culture, to characterize the composition of plaque during the transition from periodontal health to gingivitis. a total of 20 healthy volunteers abstained from oral hygiene ... | 2013 | 23967169 |