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https://www.readbyqxmd.com/read/28711435/prevalence-and-comparative-analysis-of-the-type-iv-secretion-system-in-aggregatibacter-actinomycetemcomitan
#1
Chih-Chin Liu, Chang-Hua Chen, Chuan Yi Tang, Kuan-Hsueh Chen, Zhao-Feng Chen, Shih-Hao Chang, Chi-Ying Tsai, Ming-Li Liou
BACKGROUD/PURPOSE: Aggregatibacter actinomycetemcomitans has emerged as one of the aetiological agents in periodontal disease. Although Type IV secretion systems (T4SSs) are widely distributed in many bacteria, the genetic features and distribution of T4SSs in A. actinomycetemcomitans remain unclear. In this study, we investigated the prevalence of A. actinomycetemcomitans serotypes and their T4SSs in a Taiwanese population. METHODS: A comparative analysis of 20 A...
June 30, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28706787/effect-of-scaling-root-planing-on-the-activity-of-alp-in-gcf-serum-of-patients-with-gingivitis-chronic-and-aggressive-periodontitis-a-comparative-study
#2
Nishi Singh, Siddhartha Chandel, Harmurti Singh, Amiya Agrawal, A N Savitha
INTRODUCTION: Host response and environmental factors are known to modify periodontal status adversely. Presently serum, saliva, and GCF are being investigated for its biochemical constituents. GCF contains array of biochemical factors, offering potential use as a diagnostic or prognostic biomarker of the biologic state of the periodontium in health and disease. Alkaline phosphatase is produced locally in the periodontium and shows positive correlation with disease activity and PD. Present study was designed to analyze the levels of ALP in GCF and serum of patients with gingivitis, chronic & aggressive periodontitis before and after SRP & to compare the difference within the study groups...
May 2017: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/28691886/salivary-levels-of-nlrp3-inflammasome-related-proteins-as-potential-biomarkers-of-periodontal-clinical-status
#3
Diana M Isaza-Guzmán, Verónica M Medina-Piedrahíta, Carolina Gutiérrez-Henao, Sergio I Tobón-Arroyave
BACKGROUND: Emerging evidence suggests that the activation of inflammasomes plays a central mechanism in the pathogenesis of periodontitis. This study aimed to compare the salivary levels of nod-like receptor family pyrin domain containing protein 3 (NLRP3), apoptosis-associated speck-like protein containing a caspase recruitment domain (ASC), cysteine aspartase-1 (caspase-1), and interleukin-1 beta (IL-1β) from individuals with aggressive (AgP) or chronic periodontitis (CP) and healthy controls (HC), as well as elucidate its association with the periodontal clinical status...
July 10, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28682159/association-of-nod2-mutations-with-aggressive-periodontitis
#4
T Sudo, Y Okada, K Ozaki, K Urayama, M Kanai, H Kobayashi, M Gokyu, Y Izumi, T Tanaka
Aggressive periodontitis (AgP) is characterized by rapid alveolar bone destruction and tooth loss early in life, and its etiology remains unclear. To explore the genetic risk factors of AgP, we performed genome-wide single-nucleotide polymorphism genotyping for identity-by-descent mapping and identified 32 distinct candidate loci, followed by whole exome sequencing with 2 pedigrees of AgP consisting of 3 cases and 1 control in 1 family and 2 sibling cases in the other. After variant filtering procedures and validation by targeted Sanger sequencing, we identified 2 missense mutations at 16q12 in NOD2 (p...
June 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28680811/microrna-profiling-in-gingival-crevicular-fluid-of-periodontitis-a-pilot-study
#5
Akira Saito, Masafumi Horie, Kenichiro Ejiri, Akira Aoki, Sayaka Katagiri, Shogo Maekawa, Shinta Suzuki, Sophannary Kong, Tsuneto Yamauchi, Yoko Yamaguchi, Yuichi Izumi, Mitsuhiro Ohshima
Periodontitis is a chronic inflammatory disease that affects the interface of teeth and surrounding tissues. Gingival crevicular fluid (GCF) is an exudate of the periodontal tissues and can be collected from the gap between the tooth and gum (gingival sulcus or periodontal pocket) with paper strips. Testing of GCF is a low-cost and minimally invasive procedure. In a variety of diseases, microRNAs (miRNAs) in body fluids are implicated in pathogenesis, and are suggested as potential diagnostic biomarkers. Here, we profiled miRNAs in GCF (two chronic periodontitis, one aggressive periodontitis, and five healthy subjects) using miRCURY LNA™ Universal RT microRNA PCR System, which yielded quantitative measures of more than 600 miRNAs...
July 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28678155/influence-of-the-periodontal-disease-the-most-prevalent-inflammatory-event-in-peroxisome-proliferator-activated-receptors-linking-nutrition-and-energy-metabolism
#6
REVIEW
Lourdes Román-Malo, Pedro Bullon
Periodontal disease is considered one of the main pathologic diseases occurring in humans. Its pathologic process involves inflammatory reactions producing periodontal bone resorption and the tooth loss. But some patients do not present an evident clinical inflammation with bone resorption, and in others, the inflammation is prominent without bone resorption. A key question could be to investigate a different way of responding to aggression. Inflammation requires a complex intracellular metabolic process, starting with the harmful recognition and activation of the inflammasome, continues the energy supply with the alteration of oxidative stress conditions, and finishes with the elimination of the aggression with autophagy/apoptosis mechanisms, then concludes with recovery...
July 5, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28671507/clarithromycin-as-an-adjunct-to-one-stage-full-mouth-ultrasonic-periodontal-debridement-in-generalized-aggressive-periodontitis-a-randomized-controlled-clinical-trial
#7
Naira Maria Rebelatto Bechara Andere, Nídia Cristina Castro Dos Santos, Cássia Fernandes Araujo, Ingrid Fernandes Mathias, Tiago Taiete, Renato Corrêa Viana Casarin, Maria Aparecida Neves Jardini, Luciana M Shaddox, Mauro Pedrine Santamaria
BACKGROUND: The aim of the present study was to evaluate the periodontal clinical and microbiological responses and the possible adverse effects of clarithromycin combined to periodontal mechanical therapy in the treatment of patients with generalized aggressive periodontitis. METHODS: Forty patients were selected and randomly assigned into two groups: Clarithromycin (CLM, n=20): one-stage full-mouth ultrasonic debridement (FMUD) associated with clarithromycin (500 mg - q12hrs for 3 days); Placebo (Placebo, n=20): FMUD associated with placebo pills...
July 3, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28668698/aggregatibacter-actinomycetemcomitans-serotype-prevalence-and-antibiotic-resistance-in-a-uk-population-with-periodontitis
#8
Chaido Akrivopoulou, Ingrid M Green, Nikolaos Donos, Sean P Nair, Derren Ready
OBJECTIVES: Aggregatibacter actinomycetemcomitans is a recognised pathogen involved in aggressive periodontitis. Seven serotypes of A. actinomycetemcomitans exist with a range of virulence and distribution dependent on ethnicity and geography. The ability of A. actinomycetemcomitans to invade soft tissue can necessitate the use of systemic antibiotics for treatment, however variations in its antibiotic susceptibility exist dependent on geographical location. METHODS: Serotypes of A...
June 28, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28666521/more-than-two-thirds-of-patients-with-localized-aggressive-periodontitis-gained-more-than-2-millimeters-of-clinical-attachment-level-after-4-years-of-maintenance-treatment
#9
Romina Brignardello-Petersen
No abstract text is available yet for this article.
June 23, 2017: Journal of the American Dental Association
https://www.readbyqxmd.com/read/28662328/analysis-of-il-6-il-10-and-nf-%C3%AE%C2%BAb-gene-polymorphisms-in-aggressive-and-chronic-periodontitis
#10
Hülya Toker, Emine Pirim Görgün, Ertan Mahir Korkmaz
OBJECTIVE: Pro-inflammatory cytokines, interleukin-6 (IL-6), demonstrated to be suppressed by interleukin-10 (IL-10) are known to be regulated by the transcription factor nuclear factor-κB(NF-κB). The aim of this study was to ascertain the association between genetic polymorphism of these genes (IL-6(-174), IL-10(-597) and NF-κB1-94ins/del)) and chronic/aggressive periodontitis. METHODS: Forty-five patients with chronic periodontitis (CP), 58 patients with aggressive periodontitis (AP) and 38 periodontally healthy subjects were included in this study...
June 2017: Central European Journal of Public Health
https://www.readbyqxmd.com/read/28584744/evaluation-of-serum-c-reactive-protein-levels-in-subjects-with-aggressive-and-chronic-periodontitis-in-comparison-with-healthy-controls-a-clinico-biochemical-study
#11
Vijayalakshmi Bolla, P Santha Kumari, Surendra Reddy Munnangi, D Sunil Kumar, Y Durgabai, Pradeep Koppolu
AIM: Evaluation and comparison of serum C-reactive protein (CRP) levels in subjects with chronic and aggressive periodontitis. MATERIALS AND METHODS: Based on the periodontal status, 45 subjects were selected and divided into three groups. Group I - subjects with clinically healthy periodontium, Group II - generalized aggressive periodontitis (GAP), and Group III - chronic periodontitis (CP). Blood samples were collected from subjects for measurement of CRP. Periodontal parameters include plaque index (PI), gingival index, bleeding index (BI), probing pocket depth (PPD), and clinical attachment loss (CAL) were assessed...
April 2017: International Journal of Applied and Basic Medical Research
https://www.readbyqxmd.com/read/28571797/towards-the-targeted-management-of-aggressive-periodontitis
#12
Nermin M Yussif, Manal M Hosny
No abstract text is available yet for this article.
June 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28557642/comparing-the-efficiency-of-er-cr-ysgg-laser-and-diode-laser-on-human-%C3%AE-defensin-1-and-il-1%C3%AE-levels-during-the-treatment-of-generalized-aggressive-periodontitis-and-chronic-periodontitis
#13
Abdullah Seckin Ertugrul, Yasin Tekin, Ahmet Cemil Talmac
BACKGROUND: The aim of this study is to determine the suitability of the Er,Cr:YSGG and 940 ± 15-nm diode laser for the treatment of generalized aggressive periodontitis and chronic periodontitis by measuring the levels of human β-defensin-1 and IL-1β. PATIENTS AND METHODS: A total of 26 patients were included in this study. The study was designed as a "split-mouth" experiment. We performed scaling and root planing in the right maxillary quadrant, scaling and root planning + Er,Cr:YSGG laser in the left maxillary quadrant, scaling and root planning + 940 ± 15-nm diode laser in the left mandibular quadrant, and only scaling and root planing in the right mandibular quadrant...
May 30, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28548373/role-of-de-n-acetylase-pgab-from-aggregatibacter-actinomycetemcomitans-in-exopolysaccharide-export-in-biofilm-mode-of-growth
#14
Mayilvahanan Shanmugam, Abimbola O Oyeniyi, Chaitra Parthiban, Satish Kumar Gujjarlapudi, Gerald B Pier, Narayanan Ramasubbu
Aggregatibacter actinomycetemcomitans, a Gram-negative bacterium, is the causative agent of localized aggressive periodontitis. Attachment to a biotic surface is a critical first step in the A. actinomycetemcomitans infection process for which exopolysaccharides have been shown to be essential. In addition, the pga operon, containing genes encoding for biosynthetic proteins for poly-N-acetyl glucosamine (PNAG), plays a key role in A. actinomycetemcomitans virulence, as a mutant strain lacking the pga operon induces significantly less bone resorption...
May 26, 2017: Molecular Oral Microbiology
https://www.readbyqxmd.com/read/28548211/a-haplotype-block-downstream-of-plasminogen-is-associated-with-chronic-and-aggressive-periodontitis
#15
Matthias Munz, Hong Chen, Yvonne Jockel-Schneider, Knut Adam, Per Hoffman, Klaus Berger, Thomas Kocher, Jörg Meyle, Peter Eickholz, Christof Doerfer, Matthias Laudes, André Uitterlinden, Wolfgang Lieb, Andre Franke, Stefan Schreiber, Steven Offenbacher, Kimon Divaris, Corinna Bruckmann, Bruno G Loos, Soeren Jepsen, Henrik Dommisch, Arne S Schaefer
AIM: The intronic variant rs4252120 in the plasminogen gene (PLG) is known to be associated with aggressive periodontitis (AgP) and atherosclerosis. Here, we examined the chromosomal region spanning PLG for associations with both chronic periodontitis (CP) and AgP. MATERIAL AND METHODS: The association of PLG candidate rs4252120 was tested in a German case-control sample of 1,419 CP cases using the genotyping assay hCV11225947 and 4,562 controls, genotyped with HumanOmni BeadChips...
May 26, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28544259/periodontal-maintenance-following-active-specialist-treatment-should-patients-stay-put-or-return-to-primary-dental-care-for-continuing-care-a-comparison-of-outcomes-based-on-the-literature
#16
REVIEW
P G Leavy, D P Robertson
OBJECTIVES: To review the evidence for the efficacy of periodontal maintenance (PM) carried out in primary dental care (PDC) compared to the specialist setting for patients previously treated in a specialist setting for chronic (ChP) or aggressive (AgP) periodontitis. METHODS: A focused PICO question and search protocol were developed. Online databases including MEDLINE, EMBASE, WEB OF SCIENCE™ and COCHRANE LIBRARY were searched along with specialist journals in the subject area of periodontal research...
May 22, 2017: International Journal of Dental Hygiene
https://www.readbyqxmd.com/read/28530468/genetic-susceptibility-contributing-to-periodontal-and-cardiovascular-disease
#17
G Aarabi, T Zeller, H Seedorf, D R Reissmann, G Heydecke, A S Schaefer, U Seedorf
Periodontal disease (PD) and coronary artery disease (CAD) are common diseases characterized by an overaggressive inflammatory response to diverse stimuli. Whereas PD leads to destruction of the tooth-supporting structures, CAD is a chronic inflammatory condition ultimately causing myocardial infarction via narrowing and occluding of blood vessels. Classical twin studies led to the conclusion that both complex diseases have a similar degree of heritability and that a significant fraction of the genetic factors accounting for this heritability is shared...
June 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28529526/genetic-factors-and-the-risk-of-periodontitis-development-findings-from-a-systematic-review-composed-of-13-studies-of-meta-analysis-with-71-531-participants
#18
REVIEW
Maélson Klever da Silva, Antonio Carlos Gonçalves de Carvalho, Even Herlany Pereira Alves, Felipe Rodolfo Pereira da Silva, Larissa Dos Santos Pessoa, Daniel Fernando Pereira Vasconcelos
Purpose. This work aimed to synthesize the results of recent meta-analysis focusing on polymorphism in inflammatory mediators and its relation with the risk of periodontitis development. Materials and Methods. A systematic search was conducted using databases for publications prior to October 2016. Three examiners extracted data from articles with a clear association between polymorphisms in the inflammatory mediator gene and the development of periodontitis through meta-analysis using the fixed or randomized statistical models to calculate the Odds Ratio with values of P < 0...
2017: International Journal of Dentistry
https://www.readbyqxmd.com/read/28511507/evaluation-of-c-reactive-protein-and-fibrinogen-in-patients-with-chronic-and-aggressive-periodontitis-a-clinico-biochemical-study
#19
Swaroop Chandy, Kiran Joseph, Anila Sankaranarayanan, Annie Issac, George Babu, Bobby Wilson, Jumol Joseph
INTRODUCTION: Periodontal disease is characterised by chronic infection and inflammation in periodontal tissues leading to destruction of alveolar bone with subsequent tooth loss. Periodontal infections are the result of an interaction between tooth associated microbial biofilms and the host defences. Periodontal pathogens can affect local and systemic immune and inflammatory responses. AIM: The aim of the present study was to evaluate serum C-Reactive Protein (CRP), plasma fibrinogen and peripheral blood levels in healthy subjects, chronic and aggressive periodontitis patients...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28499236/putative-periodontal-pathogens-in-the-subgingival-plaque-of-sudanese-subjects-with-aggressive-periodontitis
#20
N T Hashim, G J Linden, L Winning, M E Ibrahim, B G Gismalla, F T Lundy, I A El Karim
BACKGROUND AND OBJECTIVES: There has been limited study of the bacterial species associated with aggressive periodontitis (AgP) in high-risk populations in Africa. The aim of this study was to investigate and quantify the presence of four putative periodontal pathogens in the subgingival plaque of Sudanese subjects with AgP. A secondary aim was to investigate the effect of varying the detection threshold on the reported prevalence of the bacterial species investigated. MATERIALS AND METHODS: Subgingival plaque samples were collected from AgP cases (n=73) and healthy controls (n=71)...
April 27, 2017: Archives of Oral Biology
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