abstract：:The cytolethal distending toxin (Cdt) of Actinobacillus actinomycetemcomitans, a periodontal pathogen, is a newly described cytotoxin with immunosuppressive properties, capable of causing cell cycle arrest of lymphocytes. The objectives of this study were to investigate the occurrence of A. actinomycetemcomitans with ...

journal_title：Journal of periodontal research

authors： Tan KS,Song KP,Ong G

更新日期：2002-08-01 00:00:00

abstract：:Accumulating evidence indicates that TNFalpha plays an important role in the pathogenesis of periodontitis, but the effect of TNFalpha on the degradation of the periodontal ligament is not well understood. This study used reverse transcriptase-PCR to investigate the effects of TNFalpha on matrix metalloproteinase (MMP...

journal_title：Journal of periodontal research

authors： Nishikawa M,Yamaguchi Y,Yoshitake K,Saeki Y

更新日期：2002-06-01 00:00:00

abstract：:The three-dimensional physiological tooth movement synchronized with heartbeat, periodontal pulsation, has already been demonstrated by previous researchers. The purpose of this study was to estimate physiological tooth movements within clinically normal periodontal tissues, thus establishing periodontal pulsation sta...

journal_title：Journal of periodontal research

authors： Ioi H,Morishita T,Nakata S,Nakasima A,Nanda RS

更新日期：2002-04-01 00:00:00

abstract：:The onset and progression of periodontal disease is associated with significant changes in the epithelial component of the attachment complex. From the early to the advanced stages of periodontal disease increased epithelial cell proliferation, migration and invasion into the surrounding connective tissue takes place....

journal_title：Journal of periodontal research

authors： Sanale AR,Firth JD,Uitto VJ,Putnins EE

更新日期：2002-02-01 00:00:00

abstract：:Black-pigmented bacteria which produce cytotoxic metabolic end-products and cell membrane-associated proteases have been reported to play an important role in the pathogenesis of periodontal diseases. These bacterial virulence factors can be modified by the environmental conditions including nutrients supplied various...

journal_title：Journal of periodontal research

authors： Saito K,Takahashi N,Horiuchi H,Yamada T

更新日期：2001-12-01 00:00:00

abstract：:The purpose of this study was to evaluate the biological effects of guided tissue regeneration (GTR) membrane materials, per se, on the periodontal tissue regeneration. Rat periodontal ligament (PDL)-derived cells were used to study the attachment, proliferation and differentiation, in vitro, on various GTR membranes....

journal_title：Journal of periodontal research

authors： Takata T,Wang HL,Miyauchi M

更新日期：2001-10-01 00:00:00

abstract：:The pattern of cytokeratin expression has been extensively described in the normal and inflamed periodontium. However, there is no information regarding the pattern of cytokeratin expression in the periodontium which has been reformed following regenerative periodontal surgery. The aim of the present investigation was...

journal_title：Journal of periodontal research

authors： Sculean A,Berakdar M,Pahl S,Windisch P,Brecx M,Reich E,Donos N

更新日期：2001-08-01 00:00:00

abstract：:Growth factors are known to play a major role in the regeneration of the periodontium. Basic fibroblast growth factor (bFGF) is a polypeptide growth factor considered to have a role in chemotaxis and mitogenesis of periodontal ligament (PDL) cells. The aim of this study was to assess the effect of bFGF on the transcri...

journal_title：Journal of periodontal research

authors： Palmon A,Roos H,Reichenberg E,Grosskop A,Bar Kana I,Pitaru S,Redlich M

更新日期：2001-04-01 00:00:00

abstract：:It has been assumed that there is a relationship between periodontal diseases and diabetes mellitus, however the putative periodontal microorganisms in non-diabetes mellitus (non-DM) individuals and non-insulin-dependent diabetes mellitus (NIDDM) patients have not been well studied. In this study, the detection rates ...

journal_title：Journal of periodontal research

authors： Yuan K,Chang CJ,Hsu PC,Sun HS,Tseng CC,Wang JR

更新日期：2001-02-01 00:00:00

abstract：:Recently, nitric oxide (NO) has been shown to be vital in inflammatory processes. Nitric oxide synthase (NOS) exists in three different isoforms, two constitutively produced with physiological roles, and an inducible form, iNOS, which is involved in inflammation. This study examined the localisation of iNOS in biopsie...

journal_title：Journal of periodontal research

authors： Lappin DF,Kjeldsen M,Sander L,Kinane DF

更新日期：2000-12-01 00:00:00

abstract：:Vascularization of the periodontal ligament was examined in developing upper first molars of rats from 5 to 30 d after birth with light and scanning electron microscopy. Formation of the vascular network in the periodontal ligament (PDL) started with the beginning of root formation. The PDL vessels derived from the ba...

journal_title：Journal of periodontal research

authors： Tsukada H,Ishikawa H,Nakamura S,Yoshida S

更新日期：2000-08-01 00:00:00

abstract：:Glycosaminoglycans in normal and cyclosporin-induced gingival overgrowth were extracted by papain digestion and purified by Mono Q-FPLC chromatography. The purified glycosaminoglycans were analyzed by agarose gel electrophoresis and by the pattern of degradation products formed by chondroitin lyases on HPLC chromatogr...

journal_title：Journal of periodontal research

authors： Rocha LA,Martins RC,Werneck CC,Feres-Filho EJ,Silva LC

更新日期：2000-06-01 00:00:00

abstract：:Polymorphonuclear neutrophils (PMNs) are essential in host defense against periodontopathic bacteria such as Porphyromonas gingivalis. The uptake of immunoglobulin G (IgG)-opsonized bacteria via IgG Fc receptors (Fc gamma R) on PMN constitutes a central defense mechanism in periodontium. Fc gamma RIIIb is the most abu...

journal_title：Journal of periodontal research

authors： Kobayashi T,van der Pol WL,van de Winkel JG,Hara K,Sugita N,Westerdaal NA,Yoshie H,Horigome T

更新日期：2000-04-01 00:00:00

abstract：:The 3 human salivary cystatins S, SA and SN are multifunctional proteins that possess a cysteine protease inhibitory property, but their ability to act as such is very different (SN > SA > S). One form, S, also appears to possess antibacterial properties towards the bacterium Porphyromonas gingivalis, often associated...

journal_title：Journal of periodontal research

authors： Baron AC,Gansky SA,Ryder MI,Featherstone JD

更新日期：1999-11-01 00:00:00

abstract：:It has been estimated that half the annual health care budget in the United States is spent on patients suffering from tissue loss and late stage organ failure. Critical limitations inherent in traditional therapies call for novel tissue and organ replacement strategies. This paper discusses development of biomaterial...

journal_title：Journal of periodontal research

authors： Murphy WL,Mooney DJ

更新日期：1999-10-01 00:00:00

abstract：:An epidemiological association between periodontitis and cardiovascular disease has been reported in multiple studies. Various mechanisms have been proposed as potential explanations for this association, including a common factor that predisposes certain individuals to a hyper-responsive inflammatory response. Variat...

journal_title：Journal of periodontal research

authors： Kornman KS,Pankow J,Offenbacher S,Beck J,di Giovine F,Duff GW

更新日期：1999-10-01 00:00:00

abstract：:The 160, 190 and 270 kDa outer sheath proteases of Treponema denticola ATCC 35404 were found to be multiple forms of the major 91 kDa phenylalanine protease (PAP) by immunoblotting using anti-91 kDa specific antibodies. Multiple forms of the phenylalanine protease were also found in 2 other T. denticola strains studie...

journal_title：Journal of periodontal research

authors： Rosen G,Naor R,Sela MN

更新日期：1999-07-01 00:00:00

abstract：:In general, randomized clinical trials (RCT) in dentistry involve longitudinal observations. In such studies, the total cost is a function of the number of study subjects and visits, the study duration, and the type and number of examinations at each visit. In this paper, we derived the minimum cost design for longitu...

journal_title：Journal of periodontal research

authors： Hefti AF,Yang MC

更新日期：1999-04-01 00:00:00

abstract：:This study reports the immunohistochemical localization of TGF-beta receptor type II (T beta R-II) and type III (T beta R-III) in cells of the forming periodontal ligament (PDL) in rat first molar roots. Mandibular periodontium was obtained from 3, 6 and 12-wk-old rats. This represented tissue from the initial, pre-ma...

journal_title：Journal of periodontal research

authors： Gao J,Symons AL,Bartold PM

更新日期：1999-02-01 00:00:00

abstract：:Recently, a relationship was demonstrated between the thickness of the cementum layer in rat molars and the activity of alkaline phosphatase (ALP) in the adjoining periodontal ligament (PDL). It was the aim of the present study to investigate whether such a relationship also exists in the periodontium of man. Healthy ...

journal_title：Journal of periodontal research

authors： van den Bos T,Beertsen W

更新日期：1999-01-01 00:00:00

abstract：:Hereditary gingival fibromatosis (HGF) is an oral condition characterized by the enlargement of the gingiva of both the maxilla and mandible. To study the cell proliferation index of fibroblasts from HGF and normal gingiva (NG), cell cultures from 4 members of the same family with HGF and from 4 healthy patients were ...

journal_title：Journal of periodontal research

authors： Coletta RD,Almeida OP,Graner E,Page RC,Bozzo L

更新日期：1998-11-01 00:00:00

abstract：:The goal of a single step therapy has been an important consideration in the development of guided tissue regeneration devices. It would spare the patient from the need for repeated surgery and eliminate many problems associated with a non-resorbable barrier. Animal studies of a collagen membrane extracted from porcin...

journal_title：Journal of periodontal research

authors： Lu HK,Lee SY,Lin FP

更新日期：1998-07-01 00:00:00

abstract：:This study compared a rapid, colorimetric DNA probe assay designed to be performed in a dental office within 40 min, with anaerobic culture and indirect immunofluorescence microscopy (IFM) for detection of Bacteroides forsythus and Porphyromonas gingivalis in subgingival plaque samples. The DNA probe assay used the Pe...

journal_title：Journal of periodontal research

authors： Tanner AC,Maiden MF,Zambon JJ,Thoren GS,Kent RL Jr

更新日期：1998-02-01 00:00:00

abstract：:This study investigates a potential role for TGF beta 1 in the pathogenesis of cyclosporin A-induced gingival overgrowth (CsA-OG). TGF beta 1 was localized immunohistochemically in the connective tissue of both normal gingiva and CsA-OG. Intense staining for TGF beta 1 was detected at the tips of the dermal papillae o...

journal_title：Journal of periodontal research

authors： James JA,Irwin CR,Linden GJ

更新日期：1998-01-01 00:00:00

abstract：:We investigated the co-localization of lysosomal cathepsins B, H and L, and horseradish peroxidase (HRP) in junctional epithelial (JE) cells both as a fluid-phase endocytotic marker to demonstrate the fluid-phase endocytotic capacity of JE cells, and to understand the morphological relationships of the endocytosed for...

journal_title：Journal of periodontal research

authors： Yamaza T,Kido MA,Kiyoshima T,Nishimura Y,Himeno M,Tanaka T

更新日期：1997-11-01 00:00:00

abstract：:Cystatins are physiological inhibitors of cysteine proteinases which are widely distributed in human tissues and fluids. In the present study we analysed both the cystatin activity and the different cystatin isoforms in gingival crevicular fluid and saliva samples of nine periodontitis patients. All crevicular fluid s...

journal_title：Journal of periodontal research

authors： Blankenvoorde MF,Henskens YM,van der Weijden GA,van den Keijbus PA,Veerman EC,Nieuw Amerongen AV

更新日期：1997-10-01 00:00:00

abstract：:Interleukin-1 (IL-1) molecules, IL-1 alpha and IL-1 beta are cytokines involved in the acute-phase response against infection and in the pathogenesis of periodontal destruction. Administration of exogenous IL-1 receptor antagonist (IL-1ra) is effective in reducing the inflammatory reactions mediated by IL-1. However, ...

journal_title：Journal of periodontal research

authors： Ishihara Y,Nishihara T,Kuroyanagi T,Shirozu N,Yamagishi E,Ohguchi M,Koide M,Ueda N,Amano K,Noguchi T

更新日期：1997-08-01 00:00:00

abstract：:The formation of new cementum is an important issue in clinical periodontology, as cementum is required to provide attachment for newly formed periodontal tissues to the root surface. In this study a model of cementogenesis in vitro was used in order to test the effects of root surface demineralization on the migratio...

journal_title：Journal of periodontal research

authors： Tenorio D,Foyle DM,Hughes FJ

更新日期：1997-05-01 00:00:00

abstract：:The effectiveness of an ideal antimicrobial agent depends on its ability to kill microbes with minimal toxicity to host cells. Depending on the treatment regimen, antimicrobial agents come into contact with host cells for various intervals of time. Sanguinarium (SANG), chlorhexidine (CHX) and tetracycline (TET) are 3 ...

journal_title：Journal of periodontal research

authors： Agarwal S,Piesco NP,Peterson DE,Charon J,Suzuki JB,Godowski KC,Southard GL

更新日期：1997-04-01 00:00:00

abstract：:The aim of this study was to compare the percentage of vital microorganisms (= microbial vitality) of saliva with that of supragingival plaque both collected at various times during the early phases of de novo plaque formation. Between intervals of optimal oral hygiene, 14 healthy participants refrained from all oral ...

journal_title：Journal of periodontal research

authors： Weiger R,von Ohle C,Decker E,Axmann-Krcmar D,Netuschil L

更新日期：1997-02-01 00:00:00

abstract：:The titre and avidity of IgG antibodies to Porphyromonas gingivalis whole cells and a 47 kDa cell surface protein were determined in serum samples taken from 20 subjects with adult periodontitis and 20 controls, matched for age, gender, ethnic origin and oral hygiene status. Antibody titres were measured by ELISA and ...

journal_title：Journal of periodontal research

authors： Benjamin PA,Rogers PA,U S,Johnson NW,Cole MF,Curtis MA

更新日期：1997-01-01 00:00:00

abstract：:Recent reports suggest that specific serum IgG subclasses are a feature of several forms of periodontitis. GCF antibodies are both serum-derived and locally produced by the abundant plasma cells of the diseased periodontal tissue. Previous work has shown that crevicular fluid (GCF) levels of IgG may be reduced in acti...

journal_title：Journal of periodontal research

authors： Kinane DF,Takahashi K,Mooney J

更新日期：1997-01-01 00:00:00

abstract：:An accumulation of elevated numbers of macrophages (M phi) and Ig producing cells is associated with localized and chronically inflamed gingiva of patients with adult periodontitis. When gingival lymphocytes were isolated from inflamed tissues and examined by flow cytometry, approximately 20-30% of lymphocytes were CD...

journal_title：Journal of periodontal research

authors： Yamamoto M,Fujihashi K,Hiroi T,McGhee JR,Van Dyke TE,Kiyono H

更新日期：1997-01-01 00:00:00

abstract：:Ketoprofen creams were evaluated for the treatment of periodontal disease in a placebo-controlled, double-blind study in the rhesus monkeys, Macaca mulatta. Two formulations containing ketoprofen (1%), with or without vitamin E, were evaluated against appropriate controls (8 monkeys per group). Two weeks prior to trea...

journal_title：Journal of periodontal research

authors： Li KL,Vogel R,Jeffcoat MK,Alfano MC,Smith MA,Collins JG,Offenbacher S

更新日期：1996-11-01 00:00:00

abstract：:The aim of the present study was to analyze the cytotoxicity of some bacterial species associated with periodontal diseases. The specificity of cytotoxicity was estimated against cells of various origin and from different individuals. The reference bacteria were Actinobacillus actinomycetemcomitans, Porphyromonas ging...

journal_title：Journal of periodontal research

authors： Johansson A,Bergenholtz A,Holm SE

更新日期：1996-10-01 00:00:00

abstract：:Previous observations suggest that interleukin-1 (IL-1) may play an important role in the progression of periodontitis. In the present study, we investigated whether a cell-associated IL-1 alpha (CAIL-1 alpha) produced in human gingival fibroblasts (HGF) induces biological activities related to the progression of peri...

journal_title：Journal of periodontal research

authors： Okamatsu Y,Kobayashi M,Nishihara T,Hasegawa K

更新日期：1996-07-01 00:00:00

abstract：:We have reported recently that increased expression of membrane alkaline phosphatase (ALP) activity is a phenotypical characteristic of gingival fibroblasts located in chronic inflammatory periodontal lesions. To understand the cellular properties of these cells, we isolated ALP-positive gingival fibroblasts from pati...

journal_title：Journal of periodontal research

authors： Abe T,Hara Y,Abe Y,Aida Y,Maeda K

更新日期：1996-05-01 00:00:00

abstract：:Thirteen periodontally healthy subjects were monitored clinically for 6-12 months. Clinical measurements at 6-weekly intervals included duplicate PD measurements, presence of plaque, redness, and bleeding on probing. Baseline measurements consisted of 2 visits 1 wk apart. Microbial samples were taken from 11 of the su...

journal_title：Journal of periodontal research

authors： Tanner A,Kent R,Maiden MF,Taubman MA

更新日期：1996-04-01 00:00:00

abstract：:Cyclosporine (CsA) is a selective immunosuppressant widely used in clinical therapy. Like phenytoin and nifedipine, the drug is associated with gingival overgrowth. This study considers the interaction of CsA and prostaglandin I2 (PGI2), in particular the action of the drug on gingival tissue in vitro and in vivo. The...

journal_title：Journal of periodontal research

authors： Nell A,Matejka M,Solar P,Ulm C,Sinzinger H

更新日期：1996-02-01 00:00:00

abstract：:The stepwise approach to the determination of periodontal attachment loss involves fitting linear, logarithmic, and exponential models to individual site data and concluding that the form of loss is consistent with the model that has the greatest r-value, provided that the model predicts loss in excess of a site-speci...

journal_title：Journal of periodontal research

authors： Cohen ME

更新日期：1996-01-01 00:00:00