Abstract:
:The influence of occlusal loading on periodontal fibroblasts was investigated in hypoloaded (shortened out of occlusion), functionally loaded and hyperloaded (constant linguointrusive mechanical loads of 9.4 +/- 0.06 g) lower left rat incisors. One hour following injection of 3H-thymidine, half of the animals in each group were killed, while the remaining rats were killed 2 weeks later. The decalcified incisors were embedded in glycolmethacrylate and sectioned (2 microns) serially, perpendicularly to the long tooth axis. Labeled and unlabeled fibroblasts in the tooth-related periodontal ligament were counted in 8 x 80 microns consecutive layers. Cell density (CD) and labeling index (LI) were plotted according to their location on the apico-incisal and cementum-bone axes. Loading caused a decrease in CD and a shift of cells from the cementum towards the middle of the ligament, proportionally to load intensity and duration. The average tooth-to-bone movement of the cells was 2 microns/day in the hypoloaded and 4 microns/day in the two loaded groups. The mean daily tooth eruption rate was 975 +/- 60 microns, 499 +/- 18 microns and 103 +/- 27 microns in the hypo-, functionally- and hyperloaded teeth, respectively. The respective concomitant average daily cell migration rates in the incisal direction were 786 microns, 500 microns, and 500 microns, i.e. 80%, 100% and 485% of the tooth eruption rates. The gross disparity between cell velocity and tooth movement under conditions of restrained eruption indicates active motility of the fibroblasts, rather than their passive tooth-eruption dependent translation.
journal_name
J Periodontal Resjournal_title
Journal of periodontal researchauthors
Michaeli Y,Shamir D,Weinreb M,Steigman Sdoi
10.1111/j.1600-0765.1994.tb01087.xsubject
Has Abstractpub_date
1994-01-01 00:00:00pages
25-34issue
1eissn
0022-3484issn
1600-0765journal_volume
29pub_type
杂志文章abstract:BACKGROUND AND OBJECTIVE:CYP1A1 rs1048943 polymorphism was reported to be correlated with periodontitis; however, its association with aggressive periodontitis (AgP) has not yet been investigated. The aim of the study was to investigate the association between the CYP1A1 gene rs1048943 variant with generalized aggressi...
journal_title:Journal of periodontal research
pub_type: 杂志文章
doi:10.1111/jre.12658
更新日期:2019-10-01 00:00:00
abstract::The cellular heterogeneity of Malassez epithelium (ME) residing in the periodontal ligament has recently been reported, and the presence and coexistence of the neuropeptides calcitonin gene-related peptide (CGRP), substance P (SP) and vasoactive intestinal peptide (VIP) in single cells in ME has been shown (1). Howeve...
journal_title:Journal of periodontal research
pub_type: 杂志文章
doi:10.1034/j.1600-0765.2002.01374.x
更新日期:2002-12-01 00:00:00
abstract::The changes in vascular adhesion molecule expression and numbers of infiltrating leukocytes during a 21-day experimental gingivitis episode were investigated immunohistochemically. Monoclonal antibodies to ELAM-1 (1.2B6), ICAM-1 (6.5B5), CD3 (OKT3-pan-T cell) and neutrophils (PMN-elastase) were used to identify positi...
journal_title:Journal of periodontal research
pub_type: 杂志文章
doi:10.1111/j.1600-0765.1992.tb01746.x
更新日期:1992-11-01 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
pub_type: 杂志文章
doi:10.1111/j.1600-0765.1998.tb02346.x
更新日期:1998-11-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:The aim of this study was to design a tripolyphosphate-chitosan cross-linked tetracycline-containing (TPP-TC) sponge that slowly releases tetracycline, for future periodontal applications. MATERIAL AND METHODS:Chitosan sponge was made by freezing and drying 2.5% chitosan solution. Tripolyphosp...
journal_title:Journal of periodontal research
pub_type: 杂志文章
doi:10.1111/j.1600-0765.2007.01045.x
更新日期:2008-12-01 00:00:00
abstract::The characteristic hemagglutination (HA) of Leptotrichia buccalis was used for measuring its attachment to various human cells and for determining if saliva contained hemagglutination inhibition (HI) factors. The microbial strain utilized displayed the characteristic EM morphology of L. buccalis. Sonicated preparation...
journal_title:Journal of periodontal research
pub_type: 杂志文章
doi:10.1111/j.1600-0765.1978.tb00196.x
更新日期:1978-09-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:Chronic infections have been reported to be risk factors for coronary heart disease and ischemic stroke. However, the association of coronary heart disease and ischemic stroke with periodontal disease, which is also a chronic inflammatory disease, needs to be evaluated. The present case-control...
journal_title:Journal of periodontal research
pub_type: 杂志文章
doi:10.1111/j.1600-0765.2009.01220.x
更新日期:2010-04-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:Several studies have hypothesized that periodontal disease may increase the risk of pre-eclampsia. The correlation between the two diseases would probably be based on hypertension-related cytokine release in the local periodontal environment. The aim of this study was to evaluate the associatio...
journal_title:Journal of periodontal research
pub_type: 杂志文章
doi:10.1111/j.1600-0765.2011.01368.x
更新日期:2011-08-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:This study analyzed the interaction of Porphyromonas gingivalis ATCC 33277 and Aggregatibacter actinomycetemcomitans Y4 with peripheral blood polymorphonuclear neutrophils taken from patients with aggressive periodontitis and chronic periodontitis. MATERIAL AND METHODS:Peripheral blood polymor...
journal_title:Journal of periodontal research
pub_type: 杂志文章
doi:10.1111/j.1600-0765.2008.01113.x
更新日期:2009-06-01 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
pub_type: 杂志文章
doi:10.1111/j.1600-0765.1996.tb01412.x
更新日期:1996-10-01 00:00:00
abstract::Bradykinin stimulated production of prostaglandin E2 (PGE2) and the release of 3H-arachidonic acid by gingival fibroblasts in a time- and dose-dependent manner. The effect on PGE2 biosynthesis was seen already after 15 seconds and was maximal after 5 minutes. Several structurally unrelated inhibitors of arachidonic ac...
journal_title:Journal of periodontal research
pub_type: 杂志文章
doi:10.1111/j.1600-0765.1990.tb00928.x
更新日期:1990-11-01 00:00:00
abstract::The periodontium is a highly hierarchically organized organ composed of gingiva, alveolar bone, periodontal ligament and cementum. Periodontitis leads to the destruction of hard and soft tissues ultimately leading to a loss of the teeth supporting apparatus. Current treatments are capable of limiting the disease progr...
journal_title:Journal of periodontal research
pub_type: 杂志文章,评审
doi:10.1111/jre.12729
更新日期:2020-06-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:Current epidemiological works have suggested that chronic infections, such as periodontitis, are associated with an increased risk of cardiovascular diseases, including hypertrophy and heart failure. However, mechanisms behind the association are not known. The aim of this study was to evaluate...
journal_title:Journal of periodontal research
pub_type: 杂志文章
doi:10.1111/jre.12380
更新日期:2017-04-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:Statins are inhibitors of 3-hydroxy-3-methylglutaryl coenzyme A reductase and have anti-inflammatory effects independent of cholesterol lowering. Recent clinical studies have indicated that statin intake has a beneficial effect on periodontal disease. However, the underlying mechanisms have not...
journal_title:Journal of periodontal research
pub_type: 杂志文章
doi:10.1111/jre.12132
更新日期:2014-08-01 00:00:00
abstract:OBJECTIVE AND BACKGROUND:To evaluate the association between periodontal disease, tooth loss and coronary heart disease (CHD). There is still controversy about the relationship between periodontal disease and tooth loss with vessel obstruction assessed using coronary angiography. MATERIAL AND METHODS:This cross-sectio...
journal_title:Journal of periodontal research
pub_type: 杂志文章
doi:10.1111/jre.12301
更新日期:2016-04-01 00:00:00
abstract::This study investigated the cell surface expression of CD11b (Mo 1, Mac-1, CR 3) by neutrophils (PMNs) from human crevicular fluid (CF-PMNs). CD11b expression on CF-PMNs was compared, using flow cytometry, to that on peripheral blood PMNs (PB-PMNs) isolated simultaneously from the same subjects. CD11b expression by CF...
journal_title:Journal of periodontal research
pub_type: 杂志文章
doi:10.1111/j.1600-0765.1991.tb01631.x
更新日期:1991-03-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:Neutrophil extracellular traps (NETs) are a recently discovered antimicrobial mechanism used by neutrophils that have been proposed as an intervention in the pathogenesis of periodontitis. The objective of our study was to characterize the expression of NETs in gingival tissues with periodontit...
journal_title:Journal of periodontal research
pub_type: 杂志文章
doi:10.1111/jre.12621
更新日期:2019-06-01 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
pub_type: 杂志文章
doi:10.1111/j.1600-0765.1996.tb00484.x
更新日期:1996-04-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:Fibronectin (FN) is an important cell adhesion molecule that is used widely to characterize cell behavior. Preparations of FN purified from human plasma by gelatin-Sepharose affinity chromatography typically also contain gelatin-binding gelatinases that may cleave FN, reduce its stability and a...
journal_title:Journal of periodontal research
pub_type: 杂志文章
doi:10.1111/j.1600-0765.2009.01241.x
更新日期:2010-04-01 00:00:00
abstract::The distribution of collagen types I and III was demonstrated in healthy periodontal tissues of the rat and marmoset using immunofluorescent localization after decalcification of the maxillae and mandiblae in 0.2 N HCl. An intense fluorescence in the alveolar bone and cementum matrix, as well as in the soft periodonta...
journal_title:Journal of periodontal research
pub_type: 杂志文章
doi:10.1111/j.1600-0765.1992.tb01811.x
更新日期:1992-03-01 00:00:00
abstract::This paper reviews the literature on prepubertal periodontitis (PP) according to the definition and the classification of PP by Page. The generalized form of PP (G-PP) defined by Page was identified as the oral manifestation of a systemic disease called leukocyte adhesion deficiency (LAD) and thus the pathogenesis is ...
journal_title:Journal of periodontal research
pub_type: 杂志文章,评审
doi:10.1111/j.1600-0765.1990.tb01205.x
更新日期:1990-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:Lipopolysaccharide (LPS) on the cell wall of periodontal pathogens is a major mediator of the inflammatory response and can enhance alveolar bone resorption in periodontitis. Bone sialoprotein is an early marker of osteoblast differentiation. The proinflammatory cytokine, interleukin-8 (IL-8), ...
journal_title:Journal of periodontal research
pub_type: 杂志文章
doi:10.1111/jre.12193
更新日期:2015-04-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:Periodontitis may alter the systemic condition in patients with diabetes and hence interfere with glycemic control. The objective of this study was to determine the quantifiable changes in glycated hemoglobin (HbA1C) after periodontal non-surgical therapy plus azithromycin in a mixed population...
journal_title:Journal of periodontal research
pub_type: 杂志文章,随机对照试验
doi:10.1111/jre.12058
更新日期:2013-12-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:The transplantation of cell sheets of mesenchymal stem cells (MSCs) is expected to be the next generation of periodontal regenerative therapy. An adequate method of multilayering MSCs has yet to be established. When cell sheets proliferate, they usually contract and detach from culture dishes a...
journal_title:Journal of periodontal research
pub_type: 杂志文章
doi:10.1111/jre.12114
更新日期:2014-06-01 00:00:00
abstract::The immunoglobulin class distribution of antibody to human collagen type I has been examined in sera and gingival extracts from patients with adult chronic periodontitis. Tissue extracts were made either by simple washing or ultrasonication. With either method, IgG and IgA antibodies to collagen were present in higher...
journal_title:Journal of periodontal research
pub_type: 杂志文章
doi:10.1111/j.1600-0765.1992.tb02086.x
更新日期:1992-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:Periodontal ligament stem cells (PDLSCs) have potential for osteogenic differentiation and show a great foreground in treating bone diseases. Histone three lysine 27 (H3K27) demethylase lysine demethylase 6A (KDM6A) is a critical epigenetic modifier and plays an important role in regulating ost...
journal_title:Journal of periodontal research
pub_type: 杂志文章
doi:10.1111/jre.12830
更新日期:2020-12-24 00:00:00
abstract:BACKGROUND AND OBJECTIVE:The use of cyclosporine A induces fibrous enlargement of the gingival connective tissue. Existing treatment modalities, although effective, do not necessarily prevent the recurrence of the lesion. Emerging evidence indicates that tanshinone IIA (Tan IIA) could effectively attenuate a variety of...
journal_title:Journal of periodontal research
pub_type: 杂志文章
doi:10.1111/jre.12335
更新日期:2016-10-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Nicotine, the main psychoactive component of tobacco, affects cell metabolism, proliferation, adhesion and, importantly, the osteogenic differentiation of fibroblasts. Approximately 15% of all orthodontic patients are adults among who one-fifth are smokers. Hence, it is necessary to have insig...
journal_title:Journal of periodontal research
pub_type: 杂志文章
doi:10.1111/jre.12545
更新日期:2018-08-01 00:00:00
abstract::Collagenolysis in periodontitis is thought to be modulated by the expression of three genes, collagenase, tissue inhibitors of metalloproteinases-1 and -2 (TIMP-1 and -2). We assessed the possible difference in TIMP-1, TIMP-2 and collagenase mRNA levels between gingival samples from patients with periodontitis and tho...
journal_title:Journal of periodontal research
pub_type: 杂志文章
doi:10.1111/j.1600-0765.1993.tb01079.x
更新日期:1993-09-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:Irsogladine maleate counters gap junctional intercellular communication reduction induced by interleukin-8 or Actinobacillus actinomycetemcomitans in cultured human gingival epithelial cells. Interleukin-1 beta is involved in periodontal disease. Little is known, however, about the effect of in...
journal_title:Journal of periodontal research
pub_type: 杂志文章
doi:10.1111/j.1600-0765.2007.01000.x
更新日期:2008-02-01 00:00:00