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Journal of Periodontal Research

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https://www.readbyqxmd.com/read/30221352/strontium-ion-attenuates-lipopolysaccharide-stimulated-proinflammatory-cytokine-expression-and-lipopolysaccharide-inhibited-early-osteogenic-differentiation-of-human-periodontal-ligament-cells
#1
Lingfei Wei, Yuxi Jiang, Wenjuan Zhou, Shutai Liu, Yuelian Liu, Xiaohui Rausch-Fan, Zhonghao Liu
BACKGROUND AND OBJECTIVE: Periodontitis is a chronic inflammatory disease characterized by the destruction of the periodontium. The strontium ion (Sr2+ ) can prevent the bone loss associated with periodontitis and promote the regeneration of the bone. The mechanisms by which the Sr2+ works remain poorly understood. We aim to investigate the effects of the Sr2+ ion on cell proliferation, inflammatory regulation and osteogenic differentiation of human periodontal ligament cells (hPDLCs) in pathological conditions...
September 17, 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/30207395/developmental-pathways-of-periodontal-tissue-regeneration-developmental-diversities-of-tooth-morphogenesis-do-also-map-capacity-of-periodontal-tissue-regeneration
#2
REVIEW
Ugo Ripamonti
Nothing is known on the impact of developmental divergence on periodontal tissue regeneration in vertebrate animals. Molecularly, the induction of tooth morphogenesis is highly conserved deploying across animal phyla a constant and reproducible set of gene pathways, which result in morphogenesis of multiple odontode forms and shapes. Genetic mutations positively affect animal speciation via evolving biting and masticatory forces as well as dietary habits selectively imprinted in animal phyla during evolutionary speciation...
September 12, 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/30207394/strontium-enhances-proliferation-and-osteogenic-behavior-of-periodontal-ligament-cells-in-vitro
#3
Carolina Bizelli-Silveira, Helen Pullisaar, Lisbeth A Abildtrup, Ole Z Andersen, Rubens Spin-Neto, Morten Foss, David C E Kraft
BACKGROUND AND OBJECTIVE: Strontium (Sr) enhances osteogenic differentiation of certain multipotent cells. Periodontal ligament cells (PDLCs) are known to be multipotent, and Sr might be useful in periodontal bone tissue engineering. This study investigates the effect of high concentration of Sr on the proliferation and osteogenic behavior of PDLCs in vitro. MATERIAL AND METHODS: Primary human PDLCs were cultured in MEM + 10% FBS without (Ctrl) or with Sr in four diverse concentrations: Sr1, 11...
September 12, 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/30207388/periodontal-condition-and-levels-of-bacteria-associated-with-periodontitis-in-individuals-with-bipolar-affective-disorders-a-case-control-study
#4
Fabiano A Cunha, Luís O M Cota, Sheila C Cortelli, Tais B Miranda, Fernando S Neves, José R Cortelli, Fernando O Costa
OBJECTIVE: To evaluate the epidemiological and microbiological aspects of the potential association between bipolar affective disorder (BAPD) and periodontitis. METHODOLOGY: The present case-control study comprised 176 individuals with BAPD and 176 controls. All individuals underwent a complete full-mouth periodontal examination and microbiological sampling. Data on bleeding on probing, probing depth, and clinical attachment level in all present teeth were recorded...
September 12, 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/30207387/the-effect-of-liraglutide-on-the-proliferation-migration-and-osteogenic-differentiation-of-human-periodontal-ligament-cells
#5
Yunqing Pang, Xuemin Yuan, Jia Guo, Xuemei Wang, Man Yang, Jingli Zhu, Jing Wang
OBJECTIVE: Liraglutide (LIRA) is a novel antidiabetic therapy that may have anti-inflammatory and bone protective effects. Thus, we studied the potential therapeutic effect of LIRA on periodontitis by assessing the effects of LIRA on the proliferation, migration, inflammation, and osteogenic differentiation of human periodontal ligament cells (hPDLCs) after LPS stimulation. MATERIAL AND METHODS: The expression of glucagon like-peptide 1 receptor (GLP-1R) was measured using qRT-PCR...
September 12, 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/30159985/effects-of-theaflavins-on-tissue-inflammation-and-bone-resorption-on-experimental-periodontitis-in-rats
#6
Ya-Hsin Wu, Ryutaro Kuraji, Yuji Taya, Hiroshi Ito, Yukihiro Numabe
BACKGROUND AND OBJECTIVE: Theaflavins (TFs), the major polyphenol in black tea, have the ability to reduce inflammation and bone resorption. The aim of this study was to evaluate the effects of TFs on experimental periodontitis in rats. MATERIAL AND METHODS: Thirty rats were divided into five groups: Control (glycerol application without ligation), Ligature (glycerol application with ligation), TF1 (1 mg/mL TF application with ligation), TF10 (10 mg/mL TF application with ligation), and TF100 (100 mg/mL TF application with ligation)...
August 30, 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/30152021/environmental-lead-effects-on-gene-expression-in-oral-epithelial-cells
#7
Rebecca Peyyala, Pinar Emecen-Huja, Jeffrey L Ebersole
BACKGROUND AND OBJECTIVE: Host responses in periodontitis span a range of local and emigrating cell types and biomolecules. Accumulating evidence regarding the expression of this disease across the population suggests some component of genetic variation that controls onset and severity of disease, in concert with the qualitative and quantitative parameters of the oral microbiome at sites of disease. However, there remains little information regarding the capacity of accruing environmental stressors or modifiers over a lifespan at both the host genetic and microbial ecology levels to understand fully the population variation in disease...
August 26, 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/30079509/morphological-characterization-of-para-and-proinflammatory-neutrophil-phenotypes-using-transmission-electron-microscopy
#8
Alon Borenstein, Noah Fine, Siavash Hassanpour, Chunxiang Sun, Morvarid Oveisi, Howard C Tenenbaum, Michael Glogauer
BACKGROUND AND OBJECTIVE: Bacterial challenge is constant in the oral cavity. To contain the commensal biofilm, partly activated neutrophils are continuously recruited as part of a normal physiologic process, without exposing the host to the harmful effect of a fully active neutrophil response. This intermediate immune state has been termed para-inflammation, as opposed to the fully activated proinflammatory state in oral disease. Directly visualizing these cells and their components via transmission electron microscopy (TEM) enhances our understanding of neutrophil activation state differences in oral health and disease, as obtained from molecular studies...
August 5, 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/30047130/an-orally-administered-oral-pathobiont-and-commensal-have-comparable-and-innocuous-systemic-effects-in-germ-free-mice
#9
Keisuke Sato, Mai Yokoji, Miki Yamada, Takako Nakajima, Kazuhisa Yamazaki
BACKGROUND AND OBJECTIVES: We recently proposed a novel mechanism linking periodontitis and systemic diseases, in which orally administered Porphyromonas gingivalis affects gut microbiota composition and subsequently leads to systemic inflammation. However, the mechanism by which P. gingivalis generates systemic effects from the gut is unknown. MATERIAL AND METHODS: Six-week-old germ-free mice were orally administered with either an oral pathobiont P. gingivalis or an oral commensal Lactobacillus salivarius twice a week for 5 weeks...
July 26, 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/30035304/three-dimensional-ultrastructural-analysis-and-histomorphometry-of-collagen-bundles-in-the-periodontal-ligament-using-focused-ion-beam-scanning-electron-microscope-tomography
#10
Shingo Hirashima, Keisuke Ohta, Tomonoshin Kanazawa, Satoko Okayama, Akinobu Togo, Yoshihiro Miyazono, Jingo Kusukawa, Kei-Ichiro Nakamura
BACKGROUND AND OBJECTIVE: The periodontal ligament (PDL) is an essential tissue for tooth function. However, the 3-dimensional ultrastructure of these PDL collagen bundles on a mesoscale is not clear. We investigated the 3-dimensional ultrastructure of these collagen bundles and quantitatively analyzed their histomorphometry using focused ion beam/scanning electron microscope (FIB/SEM) tomography. MATERIAL AND METHODS: The PDLs of the first mandibular molar of male C57BL/6 mice were analyzed using FIB/SEM tomography...
July 23, 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29974960/from-manual-periodontal-probing-to-digital-3-d-imaging-to-endoscopic-capillaroscopy-recent-advances-in-periodontal-disease-diagnosis
#11
REVIEW
M Elashiry, M M Meghil, R M Arce, C W Cutler
Deepened periodontal pockets exert a significant pathological burden on the host and its immune system, particularly in a patient with generalized moderate to severe periodontitis. This burden is extensive and longitudinal, occurring over decades of disease development. Considerable diagnostic and prognostic successes in this regard have come from efforts to measure the depths of the pockets and their contents, including level of inflammatory mediators, cellular exudates and microbes; however, the current standard of care for measuring these pockets, periodontal probing, is an analog technology in a digital age...
July 4, 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29974463/analysis-of-metabolic-profiles-of-generalized-aggressive-periodontitis
#12
H W Chen, W Zhou, Y Liao, S C Hu, T L Chen, Z C Song
BACKGROUND AND OBJECTIVE: The specific pathogenesis of generalized aggressive periodontitis (GAgP) has not yet been clarified, and few studies have focused on the association between GAgP and metabolomics. To elucidate the roles of metabolic profiles in the status of GAgP, this study aimed to identify the differential metabolic profiles between patients with GAgP and healthy controls using an untargeted metabolomic profiling method. MATERIAL AND METHODS: Serum and gingival crevicular fluid samples were collected from healthy controls (n = 20) and patients with GAgP (n = 20) in this cross-sectional study...
July 4, 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/30043971/effect-of-orthodontic-force-associated-with-cigarette-smoke-inhalation-in-healthy-and-diseased-periodontium-a-histometric-and-immunohistochemistry-analysis-in-rats
#13
C L Ferreira, C M M Nunes, D V Bernardo, J F Pedroso, M Longo, M Santamaria, M P Santamaria, M A N Jardini
BACKGROUND: The aim of the present study is to evaluate the effect of orthodontic forces in healthy or diseased periodontium of rats submitted/not submitted to cigarette smoke inhalation. MATERIAL AND METHODS: Fifty-six male Wistar rats were allocated into two groups of conditions: smoking and non-smoking. Each group was divided into the following subgroups: control (C), orthodontic tooth movement (OTM), ligature-induced periodontitis (P) and P+OTM (POTM), with n = 14 each...
October 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29974476/matrix-metalloproteinase-7-in-periodontitis-with-type-2-diabetes-mellitus
#14
F Zeidán-Chuliá, D Yilmaz, L Häkkinen, E Könönen, B-H Neves de Oliveira, G Güncü, V-J Uitto, F Caglayan, U K Gürsoy
BACKGROUND AND OBJECTIVE: Elevated levels of matrix metalloproteinase-7 (MMP7) have been observed in serum samples of subjects with type 2 diabetes mellitus (T2DM) and in gingival tissues of subjects with periodontitis. The aim of the present study was to collect in vivo and in silico evidence on the role of MMP7 in the interplay between T2DM and generalized periodontitis (GP). MATERIAL AND METHODS: The extent of MMP7 expression and localization were immunohistochemically analyzed in gingival tissues of patients with GP with T2DM (T2DM/GP, n = 11), systemically healthy patients with GP (n = 7), and systemically and periodontally healthy controls (n = 11)...
October 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29961988/prevalence-extent-and-severity-of-peri-implant-diseases-a-cross-sectional-study-based-on-a-university-setting-in-brazil
#15
F Matarazzo, R Sabóia-Gomes, B E S Alves, R P de Oliveira, M G Araújo
BACKGROUND AND OBJECTIVE: Peri-implant diseases are a growing concern among clinicians. Epidemiological studies following recently recommended case definitions for peri-implant diseases are emerging worldwide. Although a small number of studies on the prevalence of peri-implant diseases has been conducted in Brazil, no information on the extent and severity of the condition has been made available so far. The objective of this study was to estimate the prevalence, extent and severity of peri-implant diseases in patients treated in a university setting in Brazil...
October 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29947052/consanguinity-increases-the-risk-for-aggressive-periodontitis
#16
M Çalışır
BACKGROUND AND OBJECTIVE: Genetic predisposition is an important factor for developing aggressive periodontitis (AgP); however, previous studies only focused on individual families where consanguineous marriages have not been considered. Thus, there is a debate in the understanding of the genetic features of this disease. The present study aims to compare the genetic features of AgP in individuals with and without history of consanguineous marriages. MATERIAL AND METHODS: Thirty-three probands from 16 pedigrees with history of consanguineous marriage and 17 pedigrees without history of consanguineous marriage were analyzed in terms of heritability of AgP...
October 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29920670/urokinase-plasminogen-activator-protects-periodontal-ligament-fibroblast-from-oxidative-induced-apoptosis-and-dna-damage
#17
M S Ahmad Akhoundi, A Rokn, R Bagheri, N Momeni, M Hodjat
BACKGROUND AND OBJECTIVE: Urokinase-plasminogen activator (uPA) is a serine protease expressed at high basal level in normal gingival cervical fluid. Despite its known pathologic role in tissue proteolysis in periodontitis, little is known concerning uPA physiological function in oral tissue. Recent evidence in cancer cells has implicated the uPA system in DNA repair and anti-apoptotic pathways. This study is aimed to evaluate the protective function of urokinase against oxidative DNA damage in periodontal ligament (PDL) fibroblast, and to propose a new biological role for uPA in oral cavity...
October 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29900537/melatonin-expression-in-periodontitis-and-obesity-an-experimental-in-vivo-investigation
#18
L Virto, H J Haugen, P Fernández-Mateos, P Cano, J González, V Jiménez-Ortega, A I Esquifino, M Sanz
BACKGROUND AND OBJECTIVE: Melatonin deficiency has been associated with obesity and systemic inflammation. This study aims to evaluate whether melatonin could interfere with the mechanisms of co-morbidity linking obesity and periodontitis. MATERIAL AND METHODS: Twenty-eight male Wistar rats were randomly divided in 4 groups: control group (Con) (fed with standard diet); high-fat diet group (HFD) (fed with a diet containing 35.2% fat); Con group with induced periodontitis (Con-Perio) and HFD group with induced periodontitis (HFD-Perio)...
October 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29900535/high-throughput-proteomic-analysis-of-candidate-biomarker-changes-in-gingival-crevicular-fluid-after-treatment-of-chronic-periodontitis
#19
Y A Guzman, D Sakellari, K Papadimitriou, C A Floudas
BACKGROUND AND OBJECTIVE: Untargeted, high-throughput proteomics methodologies have great potential to aid in identifying biomarkers for the diagnosis of periodontal disease. The application of such methods to the discovery of candidate biomarkers for the resolution of periodontal inflammation after periodontal therapy has been investigated. MATERIAL AND METHODS: Gingival crevicular fluid samples were collected from 10 patients diagnosed with chronic periodontitis at baseline and 1, 5, 9 and 13 weeks after completion of mechanical periodontal treatment...
October 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29882313/epidemiology-and-risk-factors-of-peri-implantitis-a-systematic-review
#20
REVIEW
H Dreyer, J Grischke, C Tiede, J Eberhard, A Schweitzer, S E Toikkanen, S Glöckner, G Krause, M Stiesch
The purpose of this systematic review and meta-analysis was to assess the prevalence, incidence and risk factors of peri-implantitis in the current literature. An electronic search was performed to identify publications from January 1980 until March 2016 on 9 databases. The prevalence and incidence of peri-implantitis were assessed in different subgroups of patients and the prevalences were adjusted for sample size (SSA) of studies. For 12 of 111 identified putative risk factors and risk indicators, forest plots were created...
October 2018: Journal of Periodontal Research
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