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1.
Forensic Sci Res ; 9(2): owae004, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38765699

ABSTRACT

Age assessment of the living is a fundamental procedure in the process of human identification, in order to guarantee fair treatment of individuals, which has ethical, civil, legal, and medical repercussions. The careful selection of the appropriate methods requires evaluation of several parameters: accuracy, precision of the method, as well as its reproducibility. The approach proposed by Mincer et al. adapted from Demirjian et al. exploring third molar mineralisation, is one of the most frequently considered for age estimation of the living. Thus, this work aims to assess potential bias in the data collection when applying the classification stages for dental mineralisation adapted by Mincer et al. A total of 102 orthopantomographs, of clinical origin, belonging to individuals aged between 12 and 25 years ([Formula: see text] = 20.12 years, SD = 3.49 years; 65 females, 37 males, all of Portuguese nationality) were included and a retrospective analysis performed by five observers with different levels of experience (high, average, and basic). The performance and agreement between five observers were evaluated using Weighted Cohen's Kappa and the Intraclass Correlation Coefficient. To access the influence of impaction on third molar classification, variables were tested using ordinal logistic regression Generalised Linear Model. It was observed that there were variations in the number of teeth identified among the observers, but the agreement levels ranged from moderate to substantial (0.4-0.8). Upon closer examination of the results, it was observed that although there were discernible differences between highly experienced observers and those with less experience, the gap was not as significant as initially hypothesised, and a greater disparity between the classifications of the upper (0.24-0.49) and lower third molars (>0.55) was observed. When bone superimposition is present, the classification process is not significantly influenced; however, variation in teeth angulation affects the assessment. The results suggest that with an efficient preparation, the level of experience as a factor can be overcome. Mincer and colleague's classification system can be replicated with ease and consistency, even though the classification of upper and lower third molars presents distinct challenges.

2.
Int J Legal Med ; 138(2): 685-691, 2024 Mar.
Article in English | MEDLINE | ID: mdl-37347275

ABSTRACT

Access to better health care anticipates that more medical devices can be found alongside skeletal remains. Those employed in oral rehabilitation, with available brands or batch/series, can prove useful in the identification process. A previous study in the Colecção de Esqueletos Identificados Século XXI described macroscopically the dental prostheses. An unusual case of a dental device with chromatic alterations demonstrated to require a more detailed analysis. The individual, a 53-year-old male, exhibited, at both arches, a fixed tooth-supported rehabilitation, with gold colouring classified initially as a gold-palladium alloy. Simultaneously, a green pigmentation deposit was observable in bone and prosthesis. This investigation aimed to verify the elemental composition of the dental prosthesis alloy. Elemental analysis was performed by X-ray fluorescence in two regions (labial surface of the prosthetic crown and the root surface of the lower right lateral incisor). Both the spectra and the qualitative results found higher levels of copper and aluminium, followed by nickel, iron, zinc, and manganese. No gold or palladium was detected. The most probable assumption is that a copper-aluminium alloy was used, as its elemental concentration corresponds to those measured in similar devices. Dental prostheses of copper-aluminium alloys have been made popular since the 1980s, particularly in the USA, Japan, and Eastern Europe. Apart from the biographical information, it was also known that the individual's place of birth was an Eastern European country, which highlighted the usefulness of this type of information when dealing with missing people cases.


Subject(s)
Dental Prosthesis , Palladium , Male , Humans , Middle Aged , X-Rays , Portugal , Palladium/analysis , Copper/analysis , Aluminum/analysis , Fluorescence , Incisor , Gold Alloys/analysis
3.
Antioxidants (Basel) ; 12(2)2023 Jan 18.
Article in English | MEDLINE | ID: mdl-36829785

ABSTRACT

Periodontitis (PDT) and type 2 diabetes (T2D) have demonstrated a bidirectional relationship and imbalanced oxidative stress linked to mitochondrial dysfunction. Therefore, we investigated mitochondrial and redox (de)regulation in peripheral blood mononuclear cells (PBMCs) in comorbid T2D-PDT, compared to PDT, T2D patients, and control individuals. PBMCs were analyzed for mitochondrial respiration, reactive oxygen species, antioxidant proteins, and expression of Nrf2-target genes. PDT and T2D-PDT patients exhibited altered periodontal clinical markers, while T2D and T2D-PDT patients displayed increased blood HbA1c. Decreased oxygen consumption and ATP production were observed in the PDT patient's PBMCs. PDT and T2D-PDT PBMCs also evidenced increased H2O2 levels and reduced catalase levels (also detected in T2D patients), whereas a compromised glutathione cycle was observed in T2D-PDT patients. PBMCs from both T2D or T2D-PDT patients showed increased Nrf2 protein levels, enhanced GCL activity and GCL-catalytic subunit protein levels, and maintained GCLc, GST, and HO-1 mRNA levels. In contrast, the expressions of Nrf2-target genes were significantly diminished in the PDT patient's PBMCs. Decreased SOD1 and GST mRNA levels were also observed in CD3+CD8+-lymphocytes derived from PDT and T2D-PDT patients. In conclusion, PBMCs from T2D-PDT patients showed major redox changes, while mononuclear cells from PDT patients showed mitochondrial deregulation and reduced expression of Nrf2-target genes.

4.
Medicina (Kaunas) ; 58(1)2022 Jan 12.
Article in English | MEDLINE | ID: mdl-35056421

ABSTRACT

Background and Objectives: Peri-implantitis treatment is still undefined. Regenerative treatment is expensive and technically demanding due to the need to handle biomaterials, membranes and different methodologies of decontamination. Resective treatment and implantoplasty might be a viable solution. This case series presents a 24 month retrospective observational study of 10 peri-implantitis patients treated with implantoplasty. Materials and Methods: In the present case series, 10 peri-implantitis patients (20 implants) were treated with a resective approach and implantoplasty. Previous to implantoplasty, all patients underwent non-surgical treatment. This surgery consisted in a full-thickness flap and implant surface exposure. The exposed non-osseointegrated implant body was submitted to implantoplasty. The flap was apically repositioned and sutured. Patients were accompanied for 24 months. Results: The mean initial probing depth (PD) (PD = 5.37 ± 0.86 mm), bleeding on probing (BoP = 0.12 ± 0.06%) and suppuration (Sup = 0.01 ± 0.01%) decreased significantly at the 12 month evaluation (PD = 2.90 ± 0.39 mm; BoP = 0.01 ± 0.01% and Sup = 0.00 ± 0.00%). Between the 12 and 24 month evaluations, there were no significant clinical changes (PD = 2.85 ± 0.45 mm; BoP = 0.01 ± 0.01% and Sup = 0.00 ± 0.00%). Mucosal recession (MR) had a significant increase between the baseline and the first 12 months (0.69 ± 0.99 mm vs. 1.96 ± 1.33 mm), but there were no significant changes between the 12th and 24th month (1.94 ± 1.48 mm). The success rate was 100% without implant fracture or loss. Conclusions: Resective surgery and implantoplasty might be a valid option in some specific peri-implantitis cases. Properly designed clinical trials are needed to confirm this possibility.


Subject(s)
Peri-Implantitis , Humans , Peri-Implantitis/surgery , Periodontal Index , Research , Surgical Flaps
5.
Arthritis Care Res (Hoboken) ; 74(10): 1723-1735, 2022 10.
Article in English | MEDLINE | ID: mdl-33973383

ABSTRACT

OBJECTIVE: To gauge the evidence of periodontal therapy's impact on measures of disease activity and systemic inflammatory burden in individuals with rheumatoid arthritis (RA). METHODS: A search for randomized trials and controlled cohort studies of RA patients with periodontitis was conducted on April 7, 2019, with an update on December 17, 2020 in PubMed, Cochrane Library (CENTRAL), Embase, ClinicalTrials.gov, and the World Health Organization International Clinical Trial Registry Platform portal. Two reviewers screened titles and abstracts and selected papers for full-text review. We used Outcome Measures in Rheumatology (OMERACT)-endorsed outcome domains for RA trials and summarized continuous outcomes using standardized mean differences (SMDs) with 95% confidence intervals (95% CIs). We evaluated inconsistency using the I2 statistic and combined SMDs using random-effects models for the meta-analyses; fixed-effect meta-analyses were used for sensitivity analysis. To explore heterogeneity, we added stratified/meta-regression analyses, expressed in T2 . RESULTS: Of the 1,909 studies identified, 9 (including 10 comparisons) were eligible for quantitative synthesis (n = 388). Evidence suggested a favorable effect of periodontal treatment on disease activity (SMD -0.88 [95% CI -1.38, -0.38]; n = 311). The Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach was used to judge the estimates' certainty; evidence rated as having low or very low certainty indicated that any possible effect of periodontal treatment in RA is likely to change as more evidence is provided. Selection bias and RA medication stability were highlighted as sources of heterogeneity between studies. CONCLUSION: There is an urgent need for a well-designed prospective cohort study (preferably a randomized controlled trial) of patients with RA and periodontitis using rigorous protocols, standardized diagnostic criteria, data collection, and adequate duration of follow-up.


Subject(s)
Arthritis, Rheumatoid , Arthritis, Rheumatoid/diagnosis , Arthritis, Rheumatoid/therapy , Humans , Prospective Studies
6.
Int J Legal Med ; 135(6): 2595-2602, 2021 Nov.
Article in English | MEDLINE | ID: mdl-34553261

ABSTRACT

For identification of the unknown, the analysis of individualizing characteristics is a paramount procedure, which allows the reconciliation of antemortem with postmortem data. Worldwide, populations are commonly affected by tooth loss, leading to procedures of oral rehabilitation, such as dental prostheses. Although the potential of these devices for human identification is well known, the lack of marks or serial numbers as well as scarce systematic register on databases may difficult its use. The objective of this paper is to present and describe the cases with dentures and bridges of an identified osteological collection, the Colecção de Esqueletos Identificados Século XXI. All the individuals were macroscopically observed, and the cases presenting dental prostheses were registered. A total of thirty-one individuals (20 females; 11 males), ages 38 to 91 years, presented 49 dental prosthesis (removable or fixed), of various materials. The removable acrylic dentures (n = 42) were the most frequent. No identifying marks or production labels were found. This research reinforces two focal points: the value of studying and recognizing medical devices and their application for identification, and the relevance of identified skeletal collections for the advance of forensic science in the current multidisciplinary approach.


Subject(s)
Dental Prosthesis , Adult , Aged , Aged, 80 and over , Collections as Topic , Female , Forensic Anthropology , Forensic Dentistry , Humans , Male , Middle Aged , Portugal
7.
Medicina (Kaunas) ; 57(9)2021 Sep 01.
Article in English | MEDLINE | ID: mdl-34577845

ABSTRACT

Background and Objectives: Endodontic microsurgery (EMS) aims to eradicate the sources of infection once the apical root resection removes most of the infected anatomical structures and repairs potential procedural errors in the apical region. An endodontic-periodontal lesion yields a pathological communication between the pulp and the periodontium. The purpose of this systematic review and meta-analysis is to evaluate the impact of periodontal attachment loss on the outcome of teeth submitted to EMS. Materials and Methods: PRISMA guidelines were followed. An electronic search was performed in EBSCOhost, Embase and PubMed databases with the following search key: ("endodontic microsurgery" AND "outcome"). No filters were used concerning the year of publication or language. Only randomized clinical trials, prospective and retrospective clinical studies in humans, with a minimum one-year follow-up, defined clinical and radiographic outcome criteria and estimable success rate for endodontic-periodontal lesion were included. Statistical analysis was performed using OpenMeta[Analyst] software. Results: Of a total of 113 articles, 34 were selected for full-text reading after duplicates deletion and title and abstract analysis. Thirteen and six studies were included in the systematic review and meta-analysis, respectively. A total of 2775 pooled teeth were submitted to EMS, of which 492 teeth and 4 roots had periodontal involvement. According to the qualitative analysis, success rates of the endodontic-periodontal group ranged from 67.6% to 88.2%. Meta-analysis revealed that the absence of periodontal attachment loss was predictive of a higher likelihood of success with an odds ratio of 3.14. Conclusions: Periodontal attachment loss presents a risk factor for EMS outcome. Although endodontic-periodontal lesions were associated with lower success rates considering a 1 to 10 years follow-up period, long-term successful prognosis following EMS has been reported, therefore presenting a fully valid and viable therapeutic option for the management of this type of lesions.


Subject(s)
Microsurgery , Humans , Periodontal Attachment Loss , Prospective Studies , Retrospective Studies , Treatment Outcome
8.
Clin Oral Investig ; 24(9): 3121-3132, 2020 Sep.
Article in English | MEDLINE | ID: mdl-31916034

ABSTRACT

OBJECTIVE: To assess longitudinal peri-implant tissue evaluation in a plaque compromised ligature free dog model, clinically, radiographically, microbiologically and histologically. MATERIALS AND METHODS: Six beagle mandibular premolars and first molars were extracted. Plaque accumulated for 16 weeks. Two implants were placed per hemi-mandible. For 17 weeks, control implants (CI) in one hemi-mandible were brushed daily; test implants (TI) in the other were not. These parameters were then assessed: clinically, probing depth (PD), bleeding-on-probing (BOP), presence of plaque (PP) and clinical attachment level (CAL); radiographically, marginal bone level; microbiologically, counts for Streptococcus spp., Fusobacterium spp., Porphyromonas gingivalis, Aggregatibacter actinomycetemcomitans, Prevotella intermedia and total bacterial load. At week 17, histomorphometric analysis was performed (MM-ISH (mucosal margin-implant shoulder); ISH-fBIC (implant shoulder-first bone-to-implant contact); MM-aJE (mucosal margin-apical area junctional epithelium); MM-aINF (mucosal margin-apical limit of the inflammatory infiltrate); %INF (percentage of inflammatory infiltrate)). RESULTS: At week 17, TI had significant increased PD, BOP, PP and CAL versus baseline. All clinical variables presented intergroup differences. There was no intergroup difference for radiographic bone loss (p > 0.05). Total bacteria, Fusobacterium spp., A. actinomycetemcomitans and P. gingivalis had intergroup differences. There was no statistically significant intergroup difference for ISH-fBIC. CONCLUSIONS: Longitudinal microbiology evaluation detected a shift period. Final intergroup microbiological differences were the basis of W17 clinical intergroup differences, with higher values in TI. Microbiological and clinical changes detected in peri-implant tissues were compatible with onset of peri-implant disease. Despite histological inflammatory intergroup difference, no histological or radiographic intergroup bone loss was detected. CLINICAL RELEVANCE: This study set-up describes a valuable method for generating "true" early peri-implant defects without mechanical trauma.


Subject(s)
Alveolar Bone Loss , Dental Implants , Peri-Implantitis , Periodontitis , Alveolar Bone Loss/diagnostic imaging , Animals , Dental Plaque Index , Dogs , Peri-Implantitis/diagnostic imaging , Periodontitis/diagnostic imaging , Prevotella intermedia
9.
J Funct Biomater ; 10(4)2019 Sep 30.
Article in English | MEDLINE | ID: mdl-31575005

ABSTRACT

Apical periodontitis is a biofilm-mediated disease; therefore, an antimicrobial approach is essential to cure or prevent its development. In the quest for efficient strategies to achieve this objective, antimicrobial photodynamic therapy (aPDT) has emerged as an alternative to classical endodontic irrigation solutions and antibiotics. The aim of the present critical review is to summarize the available evidence on photosensitizers (PSs) which has been confirmed in numerous studies from diverse areas combined with several antimicrobial strategies, as well as emerging options in order to optimize their properties and effects that might be translational and useful in the near future in basic endodontic research. Published data notably support the need for continuing the search for an ideal endodontic photosensitizer, that is, one which acts as an excellent antimicrobial agent without causing toxicity to the human host cells or presenting the risk of tooth discoloration. The current literature on experimental studies mainly relies on assessment of mixed disinfection protocols, combining approaches which are already available with aPDT as an adjunct therapy. In this review, several approaches concerning aPDT efficiency are appraised, such as the use of bacteriophages, biopolymers, drug and light delivery systems, efflux pump inhibitors, negative pressure systems, and peptides. The authors also analyzed their combination with other approaches for aPDT improvement, such as sonodynamic therapy. All of the aforementioned techniques have already been tested, and we highlight the biological challenges of each formulation, predicting that the collected information may encourage the development of other effective photoactive materials, in addition to being useful in endodontic basic research. Moreover, special attention is dedicated to studies on detailed conditions, aPDT features with a focus on PS enhancer strategies, and the respective final antimicrobial outcomes. From all the mentioned approaches, the two which are most widely discussed and which show the most promising outcomes for endodontic purposes are drug delivery systems (with strong development in nanoparticles) and PS solubilizers.

10.
Anthropol Anz ; 74(4): 347-353, 2017 Dec 01.
Article in English | MEDLINE | ID: mdl-28817154

ABSTRACT

ABSTRACT: We here report the discovery of a gold dental ligature from the late 15th century, at the Convent of Santa Clara-a-Velha, in the city of Coimbra, Portugal. A medieval Clare's nun presented the left upper lateral incisor splinted to the canine, since the others three incisors were lost, most probably due to an aggressive periodontal disease. The convent is associated with the medieval upper class, which was well known for its consumption of high levels of sugar. There is a higher prevalence of caries in comparison to other Portuguese skeletal samples of the same time period, as well as a high prevalence of periodontal disease. Thus far, this is one of the earliest findings of dental treatment in Europe.


Subject(s)
Dental Caries , Dental Restoration Repair , Gold/therapeutic use , Nuns , Dental Caries/epidemiology , Dental Caries/history , Dental Caries/pathology , Dental Caries/therapy , Dental Restoration Repair/history , Dental Restoration Repair/methods , Female , History, 15th Century , Humans , Incisor/pathology , Portugal
11.
BMJ Case Rep ; 20172017 Jul 19.
Article in English | MEDLINE | ID: mdl-28724597

ABSTRACT

We present the case of a 63-year-old man, admitted for hand cellulitis and acute kidney injury. A Streptococcus dysgalactiae subsp equisimilis (SDSE) was isolated in blood cultures and despite directed intravenous antibiotherapy, the patient evolved unfavourably, with dorsolumbar spondylodiscitis, multifocal septic arthritis and abscesses. CT also showed densification of the gluteal muscles, multiple air bubbles in the psoas, paraspinal muscles and spinal canal that were associated with an intramuscular injection administered 1 week earlier for a backache. After escalation of the antibiotherapy and intensive supportive measures, the patient showed improvement and was discharged after 8 weeks of antibiotherapy.The incidence of invasive SDSE infections has been growing, especially in immunosupressed patients. In this case, despite no predisposing factor identified, it evolved to severe sepsis. The intramuscular injection, a trivialised but not harmless procedure, was the assumed port of entry, as previously described in another case report.


Subject(s)
Abscess/microbiology , Arthritis, Infectious/microbiology , Buttocks/microbiology , Discitis/microbiology , Injections, Intramuscular/adverse effects , Muscle, Skeletal/microbiology , Streptococcal Infections/microbiology , Abscess/etiology , Arthritis, Infectious/etiology , Buttocks/pathology , Discitis/etiology , Humans , Male , Middle Aged , Muscle, Skeletal/pathology , Streptococcal Infections/complications , Streptococcus/growth & development
12.
Cell Oncol (Dordr) ; 39(6): 573-582, 2016 Dec.
Article in English | MEDLINE | ID: mdl-27491556

ABSTRACT

PURPOSE: Oral squamous cell carcinoma (OSCC) is a frequently occurring aggressive malignancy with a heterogeneous clinical behavior. Based on the paucity of specific early diagnostic and prognostic biomarkers, which hampers the appropriate treatment and, ultimately the development of novel targeted therapies, we aimed at identifying such biomarkers through a genetic and epigenetic analysis of these tumors. METHODS: 93 primary OSCCs were subjected to DNA copy number alteration (CNA) and methylation status analyses using methylation-specific multiplex ligation-dependent probe amplification (MS-MPLA). The genetic and epigenetic OSCC profiles obtained were associated with the patients' clinic-pathological features. RESULTS: We found that WT1 gene promoter methylation is a predictor of a better prognosis and that MSH6 and GATA5 gene promoter methylation serve as predictors of a worse prognosis. GATA5 gene promoter methylation was found to be significantly associated with a shorter survival rate. In addition, we found that PAX5 gene promoter methylation was significantly associated with tongue tumors. To the best of our knowledge, this is the first study that highlights this specific set of genes as epigenetic diagnostic and prognostic biomarkers in OSCC. CONCLUSIONS: Our data highlight the importance of epigenetically assessing OSCCs to identify key genes that may serve as diagnostic and prognostic biomarkers and, potentially, as candidate therapeutic targets.


Subject(s)
Carcinoma, Squamous Cell/genetics , DNA-Binding Proteins/genetics , GATA5 Transcription Factor/genetics , Mouth Neoplasms/genetics , PAX5 Transcription Factor/genetics , WT1 Proteins/genetics , Aged , Biomarkers, Tumor/genetics , Carcinoma, Squamous Cell/mortality , DNA Methylation , Epigenesis, Genetic , Female , Humans , Kaplan-Meier Estimate , Male , Middle Aged , Mouth Neoplasms/mortality , Multiplex Polymerase Chain Reaction , Prognosis
13.
BMJ Case Rep ; 20152015 Nov 30.
Article in English | MEDLINE | ID: mdl-26621903

ABSTRACT

We report a case of a 46-year-old man with fever, hypotension and arthralgias of the ankles and knees after brain surgery for a pituitary tumour causing Cushing's disease. Blood and urine cultures isolated Serratia marcescens; antibiotic susceptibility testing showed sensitivity to piperacillin-tazobactan and ciprofloxacin. Articular MRI showed inflammation and necrosis of both knees and ankles, and left hip and right elbow (compatible with osteomyelitis). Culture of an ankle abscess on the ankle joint was positive for Serratia marcescens. Bone scintigraphy confirmed osteomyelitic lesions. Medical treatment included antibiotics and strong opioid therapy for 14 weeks. The patient was discharged clinically improved maintaining ciprofloxacin for 24 additional weeks based on clinical and analytic recovery.


Subject(s)
Osteomyelitis/diagnosis , Pituitary ACTH Hypersecretion/complications , Serratia Infections/diagnosis , Serratia marcescens/isolation & purification , Anti-Bacterial Agents/therapeutic use , Diagnosis, Differential , Drug Administration Schedule , Drug Therapy, Combination , Humans , Male , Middle Aged , Osteomyelitis/drug therapy , Serratia Infections/drug therapy , Treatment Outcome
14.
BMJ Case Rep ; 20142014 Oct 07.
Article in English | MEDLINE | ID: mdl-25293682

ABSTRACT

We report a case of a 72-year-old Caucasian woman with PL-7 positive antisynthetase syndrome. Clinical presentation included interstitial lung disease, myositis, 'mechanic's hands' and dysphagia. As lung injury was the main concern, treatment consisted of prednisolone and cyclophosphamide. Complete remission with reversal of pulmonary damage was achieved, as reported by CT scan, pulmonary function tests and functional status.


Subject(s)
Lung Diseases, Interstitial/etiology , Myositis/etiology , Aged , Anti-Inflammatory Agents/therapeutic use , Autoantibodies/immunology , Diagnosis, Differential , Electromyography , Female , Humans , Lung Diseases, Interstitial/diagnostic imaging , Lung Diseases, Interstitial/immunology , Lung Diseases, Interstitial/pathology , Myositis/complications , Myositis/diagnosis , Myositis/drug therapy , Myositis/immunology , Myositis/pathology , Tomography, X-Ray Computed
15.
Tumour Biol ; 35(5): 4687-95, 2014 May.
Article in English | MEDLINE | ID: mdl-24477574

ABSTRACT

Oral tumors are a growing health problem worldwide; thus, it is mandatory to establish genetic markers in order to improve diagnosis and early detection of tumors, control relapses and, ultimately, delineate individualized therapies. This study was the first to evaluate and discuss the clinical applicability of a multiplex ligation-dependent probe amplification (MLPA) probe panel directed to head and neck cancer. Thirty primary oral squamous cell tumors were analyzed using the P428 MLPA probe panel. We detected genetic imbalances in 26 patients and observed a consistent pattern of distribution of genetic alterations in terms of losses and gains for some chromosomes, particularly for chromosomes 3, 8, and 11. Regarding the latter, some specific genes were highlighted due to frequent losses of genetic material--RARB, FHIT, CSMD1, GATA4, and MTUS1--and others due to gains--MCCC1, MYC, WISP1, PTK2, CCND1, FGF4, FADD, and CTTN. We also verified that the gains of MYC and WISP1 genes seem to suggest higher propensity of tumors localized in the floor of the mouth. This study proved the value of this MLPA probe panel for a first-tier analysis of oral tumors. The probemix was developed to include target regions that have been already shown to be of diagnostic/prognostic relevance for oral tumors. Furthermore, this study emphasized several of those specific genetic targets, suggesting its importance to oral tumor development, to predict patients' outcomes, and also to guide the development of novel molecular therapies.


Subject(s)
Carcinoma, Squamous Cell/genetics , Mouth Neoplasms/genetics , Multiplex Polymerase Chain Reaction/methods , Precision Medicine , Adult , Aged , Aged, 80 and over , Carcinoma, Squamous Cell/pathology , Carcinoma, Squamous Cell/virology , Cohort Studies , Female , Humans , Male , Middle Aged , Mouth Neoplasms/pathology , Mouth Neoplasms/virology , Papillomaviridae/classification , Papillomaviridae/genetics
16.
J Invest Surg ; 27(1): 50-6, 2014 Feb.
Article in English | MEDLINE | ID: mdl-23977842

ABSTRACT

OBJECTIVE: To analyze the current available experimental canine models for peri-implantitis. MATERIAL AND METHODS: Electronic databases of the PubMed, EBSCOhost, and Cochrane Library were searched for dog studies on peri-implantitis induction methodology, until October 31, 2012. The eligibility of the studies for this review was based on the screening of two independent reviewers. RESULTS: After screening, 50 publications were eligible for review. The most used animal model was the Beagle (n = 23). The bilateral mandible four premolar were the most extracted group of teeth (n = 20) and the majority of the studies had the placement of six implants in the jaw with only five (n = 5) of them reporting on interimplant distance. All publications reported peri-implantitis induction using ligature during a variable period of time and with a subsequent heterogeneous loss of peri-implant bone. The ligature placement and maintenance around the implant varied greatly between the publications. The constant use of ligatures, sometimes traumatically forced to the peri-implant sulcus, may influence the degree of bone loss during canine experimental peri-implantitis overlapping the contribution of implant surface to the onset and development of this pathology. CONCLUSIONS: A great heterogeneity exists among the studies reporting on the induction of peri-implantitis in canine. Experimental peri-implantitis model has suffered a change through the last years, from an exclusive ligature-induced to a ligature-induced and nonligature induced progression, thus approaching the natural occurrence of this pathology. The ideal canine peri-implantitis induction model would be a naturally occurring peri-implanititis induction without the action of any ligature.


Subject(s)
Dental Implantation/adverse effects , Disease Models, Animal , Dogs , Peri-Implantitis , Animals , Bicuspid , Dental Implants , Disease Progression , Ligation
17.
Cell Oncol (Dordr) ; 37(1): 29-39, 2014 Feb.
Article in English | MEDLINE | ID: mdl-24353162

ABSTRACT

PURPOSE: The identification of genetic markers associated with oral cancer is considered essential to improve the diagnosis, prognosis, early tumor and relapse detection and, ultimately, to delineate individualized therapeutic approaches. Here, we aimed at identifying such markers. METHODS: Multiplex Ligation-dependent Probe Amplification (MLPA) analyses encompassing 133 cancer-related genes were performed on a panel of primary oral tumor samples and its corresponding resection margins (macroscopically tumor-free tissue) allowing, in both types of tissue, the detection of a wide arrange of copy number imbalances on various human chromosomes. RESULTS: We found that in tumor tissue, from the 133 cancer-related genes included in this study, those that most frequently exhibited copy number gains were located on chromosomal arms 3q, 6p, 8q, 11q, 16p, 16q, 17p, 17q and 19q, whereas those most frequently exhibiting copy number losses were located on chromosomal arms 2q, 3p, 4q, 5q, 8p, 9p, 11q and 18q. Several imbalances were highlighted, i.e., losses of ERBB4, CTNNB1, NFKB1, IL2, IL12B, TUSC3, CDKN2A, CASP1, and gains of MME, BCL6, VEGF, PTK2, PTP4A3, RNF139, CCND1, FGF3, CTTN, MVP, CDH1, BRCA1, CDKN2D, BAX, as well as exon 4 of TP53. Comparisons between tumor and matched macroscopically tumor-free tissues allowed us to build a logistic regression model to predict the tissue type (benign versus malignant). In this model, the TUSC3 gene showed statistical significance, indicating that loss of this gene may serve as a good indicator of malignancy. CONCLUSIONS: Our results point towards relevance of the above mentioned cancer-related genes as putative genetic markers for oral cancer. For practical clinical purposes, these genetic markers should be validated in additional studies.


Subject(s)
Carcinoma, Squamous Cell/genetics , DNA Copy Number Variations , Genetic Predisposition to Disease/genetics , Mouth Neoplasms/genetics , Adult , Aged , Aged, 80 and over , Biomarkers, Tumor/genetics , Carcinoma, Squamous Cell/pathology , Carcinoma, Squamous Cell/virology , Chromosome Aberrations , Female , Humans , Logistic Models , Male , Middle Aged , Mouth Neoplasms/pathology , Mouth Neoplasms/virology , Multiplex Polymerase Chain Reaction/methods , Neoplasm Staging , Papillomaviridae/classification , Papillomaviridae/physiology , Papillomavirus Infections/genetics , Papillomavirus Infections/pathology , Papillomavirus Infections/virology
18.
Saúde debate ; 28(68): 256-264, set.-dez. 2004. ilus
Article in Portuguese | LILACS | ID: lil-412643

ABSTRACT

Reflexões elaboradas pela Equipe de Saúde Mental (ESM) do Centro de Saúde Santa Marta da Secretaria Municipal de Saúde de Porto Alegre. A proposta do trabalho é o planejamento e a ampliação da modalidade grupal de atendimento, tanto na sua interdisciplinaridade quanto no seu enquadre. Objetiva-se um avanço na prática clínica da interdisciplinaridade à transdisciplinaridade, quando o objetivo é a saúde mental.


Subject(s)
Humans , Interdisciplinary Communication , Mental Health
19.
J Clin Periodontol ; 29(9): 871-4, 2002 Sep.
Article in English | MEDLINE | ID: mdl-12423302

ABSTRACT

BACKGROUND/AIMS: Hereditary gingival fibromatosis is characterized by various degrees of attached gingival overgrowth. It usually develops as an isolated disorder but can be one feature of a syndrome. A case of a 38-year-old female is reported who presented a generalized severe gingival overgrowth, involving the maxillary and mandibular arches and covering almost all teeth. The clinical differential diagnosis included drug-induced overgrowth as well as idiopathic gingival fibromatosis. TREATMENT: Excess gingival tissue was removed by conventional gingivectomy. As the gingival enlargement was generalized to all quadrants, on both sides, the surgery was carried out under general anaesthesia. The postoperative course was uneventful and the patient's appearance improved considerably. Post-surgical follow-up after 20 months demonstrated a slight recurrence CONCLUSIONS: Hereditary gingival fibromatosis is a rare disorder characterized by the proliferative fibrous overgrowth of the gingival tissue. Resective surgery of the excess tissue is the treatment available. However, recurrence is a common feature.


Subject(s)
Fibromatosis, Gingival/pathology , Adult , Family Health , Female , Fibromatosis, Gingival/surgery , Genetic Diseases, Inborn/pathology , Genetic Diseases, Inborn/surgery , Gingivectomy , Humans , Recurrence
20.
Rev. gaúch. enferm ; 6(1): 35-54, jan. 1985. ilus
Article in Portuguese | BDENF - Nursing | ID: biblio-1035173

ABSTRACT

Estudo das percepçöes da equipe multiprofissional sobre a atuaçäo do enfermeiro em saude comunitária, realizado pelos enfermeiros em treinamento no Sistema de Saúde Comunitária Murialdo em 1983. Visa conhecer a percepçäo das equipes relativa a necessidade do enfermeiro, às atividades a serem desenvolvidas por ele, bem como a influência de sua presença na atuaçäo de auxiliares e voluntários.


Subject(s)
Employee Performance Appraisal , Community Health Nursing , Patient Care Team , Community Health Workers , Community Health Services , Hospital Volunteers
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