Search Results - "Powell, R N"

Interleukin-1 (IL-1) bioactivity and inhibition of IL-1 bioactivity in supernatant fluid from cultured microphthalmic (mi) mice teeth of different ages by Symons, A L, Polak, B, Powell, R N, Seymour, G J

“…A functioning dental follicle and bone resorption are necessary for tooth eruption. In the microphthalmic (mi) mouse, bone resorption is defective and teeth…”
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The antimicrobial and clinical effects of a single subgingival irrigation of chlorhexidine in advanced periodontal lesions by Lander, P E, Newcomb, G M, Seymour, G J, Powell, R N

“…The antimicrobial effects of subgingival chlorhexidine (CH) irrigations on the pathogenic flora in advanced periodontal lesions were assessed. Changes in the…”
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Immunohistological analysis of experimental gingivitis in humans by Seymour, G J, Gemmell, E, Walsh, L J, Powell, R N

“…Immunohistological analysis of experimental gingivitis in humans was carried out to provide a baseline for the study of immunoregulatory mechanisms in chronic…”
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Experimental gingivitis in humans. A clinical and histologic investigation by Seymour, G J, Powell, R N, Aitken, J F

“…AN EXPERIMENTAL GINGIVITIS STUDY was carried out to relate the clinical parameters (plaque and gingival index) to the histologic appearance of the associated…”
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Phenotypic and functional analysis of T cells extracted from chronically inflamed human periodontal tissues by Cole, K L, Seymour, G J, Powell, R N

“…T-cell subsets extracted from chronically inflamed periodontal tissues were identified using monoclonal antibodies, and their functional activity was analysed…”
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Modulation of gingival Langerhans cell T6 antigen expression in vitro by interleukin 1 and an interleukin 1 inhibitor by WALSH, L. J, SEYMOUR, G. J, POWELL, R. N

“…A human gingival organ culture system was used to test the hypothesis that interleukin 1 (IL-1) modulates the expression of the cortical thymocyte antigen T6…”
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Modulation of Langerhans cell surface antigen expression by recombinant cytokines by Ishii, T, Walsh, L J, Seymour, G J, Powell, R N

“…This study examined the influence of cytokines on surface antigen expression by gingival Langerhans cells (LC) in organ culture, interleukin-6 (IL-6) and tumor…”
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Gingival keratinocytes express HLA-DR antigens in chronic gingivitis by Walsh, L J, Seymour, G J, Powell, R N

“…The expression of the histocompatibility antigens HLA-DR and HLA-A, B, C within periodontally diseased tissue was investigated using immunohistological and…”
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Human gingival Langerhans cells stimulate allogeneic lymphocytes: requirement for MHC class II antigens by Walsh, L J, Seymour, G J, Powell, R N

“…Langerhans cells (LC) are antigen-presenting cells which express high levels of Class II MHC antigens on their plasma membranes. While the expression of these…”
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Conversion of a stable T-cell lesion to a progressive B-cell lesion in the pathogenesis of chronic inflammatory periodontal disease: an hypothesis by Seymour, G J, Powell, R N, Davies, W I

“…Changes in the host's immunological response or, alternatively, changes in the oral microflora have been implicated as possible mechanisms by which a stable…”
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Human gingival Langerhans cells as accessory cells in mitogen induced T cell responses by Newcomb, G M, Powell, R N

“…Peripheral blood and gingival tissue was collected from patients undergoing surgery for the treatment of periodontal disease. Both unfractionated peripheral…”
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Chemiluminescence in the assessment of polymorphonuclear leukocyte function in chronic inflammatory periodontal disease by Seymour, G J, Whyte, G J, Powell, R N

“…Polymorphonuclear neutrophils (PMN's) constitute the primary host resistance factor against infection. They are prominent cells in both the gingival tissue and…”
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The In Vitro Effect of Retinol on Human Gingival Epithelium. II. Modulation of Langerhans Cell Markers and Interleukin-1 Production by Walsh, Laurence J., Seymour, Gregory J., Powell, Robin N.

“…The in vitro influence of retinol on the markers of gingival Langerhans cells (LC) was investigated using an organ culture system, Retinol at a dose of 5 μg/ml…”
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The autologous mixed lymphocyte reaction (AMLR) as a possible indicator of immunoregulation in chronic inflammatory periodontal disease by Seymour, G J, Boyatzis, S, Powell, R N

“…Immunoregulatory control at both a local and systemic level is likely to be an important factor in the control of chronic inflammatory periodontal disease,…”
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Human gingival Langerhans cells in health and disease by Newcomb, G M, Powell, R N

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The immunopathogenesis of progressive chronic inflammatory periodontal disease by Seymour, G J, Powell, R N, Davies, W I

“…Natural, humoral and cellular immune mechanisms have all been implicated in the pathogenesis of chronic inflammatory periodontal disease. However, confusion…”
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Isolation and purification of ILS, an interleukin 1 inhibitor produced by human gingival epithelial cells by Walsh, L J, Lander, P E, Seymour, G J, Powell, R N

“…Recent studies have described the presence of an interleukin 1 (IL-1) inhibitor (ILS) in supernatants from human gingival organ cultures. This report describes…”
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The Brisbane Statistical Division Survey of Adult Dental Health 1984. 3. Dental health status and treatment needs by Powell, R. N., McEniery, T. M.

“…Dental status and treatment requirements were investigated in 1504 subjects. Mean numbers of decayed, missing and filled (DMF) teeth for the various age groups…”
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The regulation of Langerhans cell T6, DR and DQ antigen expression: an hypothesis by Walsh, L J, Seymour, G J, Powell, R N

“…A hypothetical model of the maturation pathway of Langerhans cells (LC) within an epithelial environment is presented. This model is based on in vitro studies…”
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Association between plaque accumulation and Langerhans cell numbers in the oral epithelium of attached gingiva by Newcomb, G M, Seymour, G J, Powell, R N

“…After gingival health had been achieved in four subjects they were instructed to cease all oral hygiene measures. At 0, 8 and 21 days Plaque and Gingival…”
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