O papel do epstein barr vírus na carcinogênese oral

Introduction: the squamous cell carcinoma (SCC) is the head and neck cancer of higher occurrence, representing about 90% of all these tumors. The SCC has several risk factors as smoking, alcohol and some oncogenic viruses, including the Epstein Barr virus (EBV). The EBV is a member of Herpesviridae family and has tropism for B lymphocytes and also for epithelial cells. Aim: the aim of this study was accomplish a review of the literature about the presence of the EBV in oral carcinomas. Conclusion: EBV is closely related to nasopharyngeal carcinoma, a SCC of high incidence in Southeast Asia, however its role in others oral SCC has not been proved.

Biofilmes orais como um possível fator de risco ao câncer bucal: revisão da literatura

Introduction: much studies regarding risk factors associated with oral cancer. Factors such as smoking and alcohol and solar radiation are well established, but others, such as bacterial influence in the development or progression of a tumor still remain unexplained. Interest in the possible relationship between bacteria and different stages of cancer development has increased since the classification of H. pylori by the WHO as a definite carcinogen. Subsequently, links between infection and the onset of cancer in various sites in the body were discovered. Review of literature: this literature review attempts to show the influence of poor oral hygiene, with consequent bacterial accumulation as a possible important risk factor for the initiation and development of mouth cancer, and correlate the possible mechanisms by which bacteria can initiate or promote carcinogenesis. Conclusion: there is much evidence that bacteria in the oral cavity and periodontopathic are present in tumor tissue, however, still can not affirm that these bacteria initiate or promote carcinogenesis.

Programa de diagnóstico e prevenção de câncer da boca: uma estratégia simples e eficaz

The program of diagnosis and prevention of oral cancer of Univag - University Center aims to increase preventive and early oral diseases with emphasis on oral cancer, aiming to reduce the morbidity and mortality through educative actions, spreading of the auto-examination, performed by dental students of UNIVAG since the second half of 2005 to the present day. The dental students of 1st, 2nd, 3rd and 4th semesters were trained using practice-theoretical classes, for realization the exams preventives and diagnostics, such as self-examination, exfoliative cytology and biopsy of oral mucosa, and even present educative actions. Analyzing the preliminary results were observed increase in the number of diagnoses and referral of diagnosed with oral cancer for treatment in referral services. It was concluded that the program of diagnosis and prevention of oral cancer can make possible early diagnosis and adoption of preventive measures, consequently improving survival rates and life quality in population.

Perfil epidemiológico dos participantes do Programa de diagnóstico e prevenção do câncer de boca em Mato Grosso

To determine the profile of the patients who participated in the program of oral cancer diagnosis and prevention in Mato Grosso, from 2008 to 2009. Materials and Methods: The medical records of the treated patients were examined. Results: 1.293 records were analyzed, with a predominance of female patients (60%) and a greater participation of patients from 10 to 19 years of age (20%). Reports of pre-existing illnesses amounted to 302 recorded cases. In addition, 292 variations of normality could be also identified. During the period, 25 participants were recommended for exfoliative cytology and 133 for biopsy, as they presented oral lesions that raised the suspicion of malignancy. Conclusions: Campaigns to raise awareness of and prevent oral cancer are very important and should be extended to the entire population of the state of Mato Grosso, either by means of the local University Center (UNIVAG), or by other agencies and health institutions.

Doença de Lyme na região de cabeça e pescoço: implicações para a odontologia

Lyme disease (LD) is a systemic inflammatory changes resulting from the direct action of the spirochete Borrelia burgdorferi on the host or indirect damage produced by immune response to this microorganism. This pathogen is transmitted by inoculation in the bloodstream by the tick genus Ixodes and is most commonly found in North America, Europe and Asia. In these regions, the dental community is aware about its commonest clinical symptoms, collaborating with the establishment of a diagnosis. However, in Brazil, the frequent facial or peripheral neurological manifestations, among them the Bell's palsy, ocular disorders, disorders in the temporomandibular joint, as well as paresthesia of upper and lower alveolar nerves are observed. In our country, the diagnosis of Lyme disease is primarily based on clinical symptomatology, but most of cases remain without diagnosis and treatment. Then, the detection of the early manifestations of Lyme disease by health professionals is essential for the proper antibiotic treatment, preventing the progression of the disease, and allowing the establishment of favorable prognostic.

O tabaco é um dos principais fatores etiológicos do câncer bucal: conceitos atuais

Neoplasm, tumor or cancer generic synonymies are used to designate a group of diseases that affect any part of the body.Their main common feature is the abnormal cell proliferation, usually rapid, uncontrolled and unrestrained. According to World HealthOrganization (WHO) cancer is the leading cause of death worldwide. In 2005, a total of 58 million deaths, 7.6 million (or 13%) of all of them were cancer. Among the factors that favor its development, the tobacco is considered one of the main villains. Therefore, this article, we will discuss the basics and updates about oral cancer and tobacco consumption.

Anaeróbios do complexo vermelho de Socransky e infecções bucais em pacientes com imunocomprometimento: características clínicas e prognóstico do tratamento

Os anaeróbios obrigatórios que compõem o complexo vermelho de Socransky são reconhecidos pelo seu envolvimento nas doenças periodontais humanas, mas em pacientes imunocomprometidos os mesmos parecem estar associados a quadros sépticos mais graves e de tratamento mais complexo. Esse estudo objetivou avaliar a ocorrência de Porphyromonas gingivalis (Pg), Tannerella forsythia (Tf) e Treponema denticola (Td) no biofilme, mucosas e saliva de 160 pacientes HIV+, 5 pacientes leucêmicos, 50 pacientes submetidos à radioterapia para tratamento de câncer de cabeça e pescoço e sua correlação com sintomatologia clínica. Amostras de biofilme sub e supragengival, saliva e mucosas foram coletadas após a realização do exame clínico intrabucal. Após a extração do DNA, a detecção desses microrganismos era realizada por PCR. Esses patógenos foram detectados de todos os espécimes clínicos de pacientes com necrose de tecidos moles bucais. Nos pacientes HIV+, a frequência de detecção de Pg e Tf entre pacientes com periodontite foi 2,8 e 2,1 vezes mais elevada do que a observada nos indivíduos periodontalmente saudáveis. T. denticola foi detectado apenas nos sítios com necrose, supuração e perda óssea pronunciada. Pg e Tf se mostraram associados com perda óssea e sangramento gengival. A presença desses microrganismos esteve associada a odor fétido e dor, o que pode auxiliar o clínico na escolha de antimicrobianos como auxiliares do tratamento, devendo-se evitar o emprego de β-lactâmicos, podendo-se associar essas drogas ao metronidazol.

Expressão diferencial de microRNAs no câncer de próstata

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Biofilmes orais como um possível fator de risco ao câncer bucal

Introduction: much studies regarding risk factors associated with oral cancer. Factors such as smoking and alcohol and solar radiation are well established, but others, such as bacterial influence in the development or progression of a tumor still remain unexplained. Interest in the possible relationship between bacteria and different stages of cancer development has increased since the classification of H. pylori by the WHO as a definite carcinogen. Subsequently, links between infection and the onset of cancer in various sites in the body were discovered. Review of literature: this literature review attempts to show the influence of poor oral hygiene, with consequent bacterial accumulation as a possible important risk factor for the initiation and development of mouth cancer, and correlate the possible mechanisms by which bacteria can initiate or promote carcinogenesis. Conclusion: there is much evidence that bacteria in the oral cavity and periodontopathic are present in tumor tissue, however, still can not affirm that these bacteria initiate or promote carcinogenesis.

Explorando potencialidades para a criação de rede de apoio social a mulheres lusófonas que vivem com câncer de mama em Toronto, Canadá

Introduction: Health indicators tend to be altered due to the participation of people in social networks. Objective: To find out ideas of individuals belonging to Portuguese speaking communities in Toronto, Canada, about the possibility of creating a social support network for women experiencing breast cancer. Method: Nineteen participants of the present ethnographic and critical study answered to questions, providing their opinions regarding to the social support network and its positive and negative aspects. Also, the participants suggested other possible individuals who could participate and help in the creation of such network. Discussions were transcribed, analysed and coded using qualitative software called Atlas ti 6.0. Results: The main components for the creation of the social support network were: the demystification of breast cancer and its prevention, emphasis in health education, dissemination of the need of volunteers and a direct social support to those women. The positive aspects were the participation of oldest women as social leaders and the utilization of schools and religious institutions for publicity. Negative aspects that were perceived as barriers are: the belief that breast cancer is a disease lived by women, the lack of knowledge about its cure and rehabilitation, as well as a collective sensitiveness to it. Also, about the participation of community leaders, the suggestions were: diplomats, priests and pastors, schools directors and communication entrepreneurs. Conclusion: The creation of the social support network should consider the cultural sensitiveness and the inner diversity of the consulted Portuguese speaking communities. Due to the insufficient number of Angolan participants to sustain a major analysis, a special recommendation was that Angolan social leaders and professionals should be invited to design the structure of such network according to their specific cultural traits.

Análise integrada entre dados de expressão global de transcritos codificadores e de miRNAs em carcinomas de células escamosas de laringe

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Estudo da ação de derivados semi-sintéticos de curcumina em linhagens celulares de câncer humano

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Estudo com familiares de pacientes com câncer de mama: abordando conhecimento sobre fatores de risco

Breast cancer (BC) is the most common malignancy in women worldwide, with one million new cases confirmed each year. This study aimed at identifying the knowledge of patients? relatives concerning the risk factors (RF) for BC. It is a descriptive quantitative study carried out in the Chemotherapy Technical Division of a University Hospital in São Paulo state, Brazil, from September to October 2006. Only female (30) relatives were included due to the fact that BC is more frequent in females. The major RF cited were family history for BC 33.3% (10), smoking 16.6% (5), alcoholic-drink consumption 10% (3), animal-fat-rich diet 3.3% (1). Other factors such as not breastfeeding, environmental factors, use of oral contraceptives and hormone-replacement therapy were mentioned by 10% (3) of the relatives. It was concluded that the relatives of patients undergoing chemotherapeutic treatment showed to have little knowledge concerning RF for BC. Hence, it is important to rethink the inclusion of the health education process in the family scenario. This issue reaches far beyond thesimple transmission of information. Healthcare professionals and nurses in particular, must focus on these individuals? social context, values, beliefs and needs.

Avaliação convencional e estesiômetro: resultados controversos na avaliação sensitiva no câncer de mama

This study, clinical, prospective, randomized study was conducted from August 2004 to February 2008 in a convenience sample of 60 women who underwent breast surgery with axillary dissection, divided into two groups (n = 30). The GI (Guidance Kit with different textures, to perform at home) and GII (control). The objective was to analyze the effect of home orientation in patients after surgery for breast cancer complaining of numbness, evaluation, and the conventional esthesiometer. The surface sensitivity was assessed by monofilament Semmes-Weinstein and evaluation using conventional two test tubes with hot water (38 to 43o C) and cold (16 to 27o C), paintbrush, needle. The GI was subjected to 10 sessions and assessments in both 3 times. The M1 (pre intervention), the M2 (post-intervention) after 10 sessions of physical therapy intervention and M3 (washout) after 3 months the second time for assessment. The region targeted for evaluation and intervention was the sensory nerve dermatome intercostobrachial. In the test of Goodman (conventional assessment) there was improvement in both groups, the P1, during the thermal evaluation. The t-test of student (esthesiometer) there was improvement in P2 only in GI (p = 0.003) between points 1 and 2 while the time 3 (p = 0.121 and p = 0.733 respectively). It was concluded that there were divergent and opposite results after examining the effect of home orientation in the nerve dermatome intercostobrachial, evaluation, and the conventional esthesiometer.

Qualidade de vida em mulheres com câncer de mama submetidas à cirurgia conservadora e mastectomia

Pós-graduação em Enfermagem - FMB