Abstract:
BACKGROUND:Cementum formation is considered to be a critical event for successful regeneration of periodontal tissues. Cementoblasts share many characteristics with osteoblasts. Prostaglandin E(2) (PGE(2)) is an important local factor in bone metabolism. Although the effects of PGE(2) on osteoblasts are well known, its effects on cementoblasts have not yet been established. We examined the effects of PGE(2) on proliferation and differentiation in a mouse cementoblast cell line, OCCM-30 cells. METHODS:OCCM-30 cells were treated with three concentrations of PGE(2) (10, 100, and 1,000 ng/ml). Cell number, alkaline phosphatase (ALP) activity, and expression for mineralization-related genes were determined. Osteoprotegerin (OPG) and receptor activator of nuclear factor-kappa B (NF-kappaB) ligand (RANKL) expression were also examined by real-time polymerase chain reaction (RT-PCR) and enzyme-linked immunosorbent assay (ELISA). RESULTS:The addition of PGE(2) at the highest dose used in this study suppressed cell proliferation of OCCM-30 cells. The expression of mineralization-related marker mRNA, such as type 1 collagen, ALP, bone sialoprotein (BSP), and osteocalcin (OCN), was constitutively detected in OCCM-30 cells. PGE(2) dose dependently stimulated ALP activity and BSP-mRNA expression in OCCM-30 cells at day 3. Transcripts for OPG and RANKL and the protein level of OPG in culture media were upregulated with PGE(2) stimulation. CONCLUSION:These results demonstrate that PGE(2) suppressed cementoblast proliferation but stimulated ALP activity and the BSP-mRNA level, suggesting a role of PGE(2) in controlling cementoblast differentiation, and further indicate that PGE(2) modulates RANKL and OPG expression in cementoblasts; the increase of OPG secreted from cementoblasts with PGE(2) stimulation may be essential to protect the root surface from resorption.
journal_name
J Periodontoljournal_title
Journal of periodontologyauthors
Mada Y,Miyauchi M,Oka H,Kitagawa M,Sakamoto K,Iizuka S,Sato S,Noguchi K,Somerman MJ,Takata Tdoi
10.1902/jop.2006.060148subject
Has Abstractpub_date
2006-12-01 00:00:00pages
2051-8issue
12eissn
0022-3492issn
1943-3670journal_volume
77pub_type
杂志文章abstract:BACKGROUND:The peri-implant soft tissue phenotype (PSP) encompasses the keratinized mucosa width (KMW), mucosal thickness (MT), and supracrestal tissue height (STH). Numerous approaches to augment soft tissue volume around endosseous dental implants have been investigated. To what extent PSP modification is beneficial ...
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更新日期:2021-01-01 00:00:00
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doi:10.1902/jop.2002.73.6.591
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doi:10.1902/jop.2008.070305
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abstract::Osseous grafting techniques represent one mode of therapy to manage combination pocket-osseous defects. They have their greatest applicability in the intrabony defect although encouraging results have been noted in furcation and suprabony sites. Like all treatment modalities, their usage is dictated by the therapeutic...
journal_title:Journal of periodontology
pub_type: 杂志文章,评审
doi:10.1902/jop.1977.48.9.570
更新日期:1977-09-01 00:00:00
abstract:BACKGROUND:Oral lichen planus (OLP) is one of the most common oral mucosa disorders. OLP gingival involvement is very frequently observed and is characterized by a wide range of clinical appearance, symptomatology, and locations. The purpose of this study was to analyze the prevalence and clinical aspects of gingival l...
journal_title:Journal of periodontology
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doi:10.1902/jop.2007.060303
更新日期:2007-04-01 00:00:00
abstract::A study was undertaken to evaluate the antigenic potential of allogeneic freeze-dried skin (FDS) when used as a grafting material and to examine the clinical results when FDS is used for the correction of mucogingival problems in humans. FDS was obtained from an HLA-tissue-type donor according to Navy Tissue Bank prot...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1980.51.10.571
更新日期:1980-10-01 00:00:00
abstract:BACKGROUND:An experimental periodontal sensor probe (SP) equipped with an optical fiber for recording function was developed. The aim was to test the intraexaminer reproducibility of probing using the SP and to assess the consistency with the manual probe (MP). METHODS:The SP was assembled with an external sheath cove...
journal_title:Journal of periodontology
pub_type: 杂志文章,随机对照试验
doi:10.1902/jop.2011.110047
更新日期:2012-02-01 00:00:00
abstract:BACKGROUND:Clinical manifestations of sarcoidosis affecting the periodontium could mimic aggressive periodontitis. This case report documents the occurrence of sarcoidosis affecting the periodontium, including its clinical features, diagnosis, treatment, and 6-year follow-up. METHODS:An individual with a history of pu...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2007.070117
更新日期:2007-11-01 00:00:00
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journal_title:Journal of periodontology
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doi:10.1902/jop.2002.73.7.720
更新日期:2002-07-01 00:00:00
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doi:10.1902/jop.2014.130595
更新日期:2014-09-01 00:00:00
abstract:BACKGROUND:The number of immunocompromised patients is increasing as a consequence of successful organ transplantation. Placing dental implants in these patients has been questioned because of their increased risk for infections. The 10-year follow-up data of a 71-year-old liver transplant recipient with long-term immu...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2004.75.6.909
更新日期:2004-06-01 00:00:00
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journal_title:Journal of periodontology
pub_type: 杂志文章,实务指引
doi:10.1902/jop.2008.080266
更新日期:2008-12-01 00:00:00
abstract::Cystatins are physiological inhibitors of cysteine proteinases and widely distributed in human tissues and fluids including saliva. Cystatins S, SA, SN, and D are only found in glandular saliva and tear fluid whereas cystatin C has been detected in all tested biological fluids. Previous studies demonstrated that total...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1996.67.3.205
更新日期:1996-03-01 00:00:00
abstract:BACKGROUND:Little is known about systemic, environmental, and periodontal risk factors of gingival recessions. This study identifies variables related to buccal gingival recessions in an adult French population; this study uses data collected in the First National Periodontal and Systemic Examination Survey. METHODS:T...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2010.100102
更新日期:2010-10-01 00:00:00
abstract:BACKGROUND:The efficacy of various partial-mouth recording (PMR) systems is analyzed in the evaluation of periodontal status, using index teeth and different combinations of quadrants. METHODS:The study group was formed of 108 adults aged 25 to 65 years old. A full-mouth examination (FME) was performed in all particip...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2013.130389
更新日期:2014-06-01 00:00:00
abstract::A retrospective study was conducted of 620 patients in a periodontal practice over the years 1960 to 1982. Various periodontal therapies were assessed by using careful office protocols, meticulous record-keeping and well-defined outcome criteria. Four treatment outcome categories were used: two representing satisfacto...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1985.56.5.253
更新日期:1985-05-01 00:00:00
abstract::A role for activated B-lymphocytes in mediating the initiation and/or progression of periodontal diseases has been proposed in previous work. The present study was conducted to: (1) assess the proportion of total lymphocyte blastogenic response to selected oral bacteria which is composed of T-cell and B-cell activatio...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1984.55.6.359
更新日期:1984-06-01 00:00:00
abstract:BACKGROUND:Several anti-inflammatory drugs have been used to reduce pain and discomfort after periodontal surgeries. This study evaluates the efficacy of using etoricoxib and dexamethasone for pain prevention after open-flap debridement surgery. METHODS:For this prospective, double-masked, crossover, placebo-controlle...
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pub_type: 杂志文章,随机对照试验
doi:10.1902/jop.2010.100059
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journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1993.64.2.110
更新日期:1993-02-01 00:00:00
abstract::The present study demonstrated that hyperglycemic diabetic rats fed a low-protein (8%) diet maintained an alveolar bone height similar to controls; in contrast, those fed a standard protein diet (24%) had reduced alveolar bone height (P less than 0.05). Euglycemic diabetic and untreated control rats fed low-protein di...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1989.60.5.264
更新日期:1989-05-01 00:00:00
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journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2005.76.7.1161
更新日期:2005-07-01 00:00:00
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journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2012.110683
更新日期:2012-12-01 00:00:00
abstract::To date, there are no ultrastructural studies that have examined untreated chronic periodontal pockets immediately following dental debridement with an oral irrigation device. This study used both scanning electron microscopic and transmission electron microscopic methodology to examine previously untreated human peri...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1988.59.3.155
更新日期:1988-03-01 00:00:00
abstract:BACKGROUND:The long-term survival of dental implants depends, in part, on control of bacterial infection in the peri-implant region. Periodontal pathogens colonized implants symptomatic through infection, whereas the microbiota of successful implants was similar to that of periodontal health. This study examined the im...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1999.70.2.131
更新日期:1999-02-01 00:00:00
abstract:BACKGROUND:Various surgical techniques have been proposed for treating gingival recession. This randomized clinical trial compared the coronally positioned flap (CPF) alone or in conjunction with a subepithelial connective tissue graft (SCTG) in the treatment of gingival recession. METHODS:Eleven non-smoking subjects ...
journal_title:Journal of periodontology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1902/jop.2004.75.3.413
更新日期:2004-03-01 00:00:00
abstract:BACKGROUND:Contradictory results exist regarding influence of apico-coronal implant placement on crestal bone levels. METHODS:Complete charts of patients ≥18 years old with one or more dental implants were included. Demographic, medical, surgical, and prosthetic information was recorded. Implant bone levels were evalu...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2017.160802
更新日期:2017-08-01 00:00:00
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journal_title:Journal of periodontology
pub_type: 杂志文章,评审
doi:10.1902/jop.1995.66.6.506
更新日期:1995-06-01 00:00:00
abstract::In previous studies Fusobacterium nucleatum has been shown to induce either stimulatory or inhibitory effects on human mononuclear cells. We examined the interaction of human mononuclear cells with human and cynomolgus monkey strains of F. nucleatum. Peripheral blood mononuclear cells (PBMCs) isolated from normal dono...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.1997.68.1.39
更新日期:1997-01-01 00:00:00
abstract:BACKGROUND:A 22-year-old African American female was referred for augmentation of keratinized gingiva around implants at the right and left maxillary second premolar sites. Presurgical evaluation revealed generalized melanosis of the buccal gingiva and a lack of keratinized tissue around implants at sites #4 and #13. N...
journal_title:Journal of periodontology
pub_type: 杂志文章
doi:10.1902/jop.2009.090289
更新日期:2010-01-01 00:00:00