Comparison of risk factors among blood donors, volunteers and replacement individuals, infected or not by hepatitis C virus

Hepatitis C is transmitted primarily parenterally by contaminated blood and is often associated with: intravenous drug abuse, invasive procedures, blood transfusions, acupuncture, tattooing, and alcohol and tobacco use. This study aimed to quantify and evaluate the risk factors among blood donors, volunteer blood donors and replacement individuals, infected or not by the C virus. The main transmission routes of C virus were identified in 55 men and 25 women (GI) monitored by the Ambulatory Unit of the Department of Tropical Diseases, Botucatu Medical School, and in 24 men and 26 women (GII), all active blood donors at the Bauru State Hospital Transfusional Agency. Both groups were similar in: tobacco and alcohol consumption, sexual behavior, tattooing and illicit drug use. The duration of alcohol and tobacco consumption and blood transfusions in GI were longer, whereas the option for steady partners, condom use, disposable materials and piercings were predominant in GII. In conclusion, the risk factors for hepatitis C demonstrate the necessity of health policies that act on the primary and secondary prevention levels (respectively, reduction of infection incidence and hepatopathy risk).

Smoking and Periodontal Disease: Clinical Evidence for an Association

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

Alcohol dehydrogenase 3 genotype as a risk factor for upper aerodigestive tract cancers

Objective: To assess alcohol dehydrogenase 3 (ADH3) polymorphism at position Ile349Val as indicator of risk factor for upper aerodigestive tract (UADT) cancer to verify its association with UADT cancer in nonalcoholic or nonsmoking individuals.Design: Cross-sectional study.Setting: Primary care or referral center.Patients: the study group consisted of 141 consecutive patients with newly diagnosed squamous cell carcinoma of the oral cavity, oropharynx, hypopharynx, or larynx admitted for surgical treatment. The comparison group consisted of 94 inpatients without cancer from the A. C. Camargo or other São Paulo (Brazil) hospital and 40 healthy individuals.Intervention: All participants were interviewed and data were collected using a structured questionnaire. After written informed consent was obtained, 20 mL of blood was collected in heparinized tubes.Main Outcome Measures: Odds ratio for ADH3 genotypes using logistic regression models.Results: After adjustment for sex, age, tobacco use, and history of cancer in first-degree family relatives, a significantly higher odds ratio for UADT cancer was observed among individuals with AA genotype and low cumulative alcohol consumption (:5 100 kg of ethanol) (odds ratio=3.8 [95% confidence interval, 1.5-9.7]). A 4-fold increase in odds ratio for UADT cancer among individuals with AA genotype and low tobacco consumption (:525 pack-years) was also found in the adjusted model.Conclusions: These results suggest that genotype AA may be a risk factor for UADT cancer, especially in individuals with low alcohol or tobacco consumption. However, further epidemiological case-control or cohort studies, preferably prospective, are needed to establish the exact role of ADH3 polymorphism and its association with the development of UADT cancers.

Expression of Ki-67 Antigen and Caspase-3 Protein in Benign Lesions and Esophageal Carcinoma

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

Tabagismo e mecanismos de defesa: resposta imune e transporte mucociliar

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Características e conhecimentos sobre tabagismo em grupos específicos: adolescentes e gestantes

Pós-graduação em Fisiopatologia em Clínica Médica - FMB

Prevenção do tabagismo na gravidez: importância do conhecimento materno sobre os malefícios para a saúde e opções de tratamento disponíveis

Objetivo: Examinar o padrão de consumo do tabaco e conhecimentos sobre as doenças relacionadas ao tabaco, assim como identificar os tipos mais populares de mídias entre gestantes para aprimorar estratégias para a prevenção e a cessação do tabagismo entre essas mulheres. Métodos: Estudo transversal com 61 gestantes atendidas em um hospital universitário e em unidades básicas de saúde em Botucatu, SP. A Escala Hospitalar de Ansiedade e Depressão foi aplicada a todas as participantes. Para aquelas com história de tabagismo, também foi aplicado o Teste de Fagerström para Dependência de Nicotina, e foi avaliado o grau de motivação para cessação tabágica nas fumantes. Resultados: Das 61 gestantes avaliadas, 25 (40,9%) eram fumantes (média de idade, 26,4 ± 7,4 anos), 24 (39,3%) eram ex-fumantes (média de idade, 26,4 ± 8,3 anos), e 12 (19,8%) nunca fumaram (média de idade, 25,1 ± 7,2 anos). A exposição passiva foi relatada por 39 gestantes (63,9%). Das 49 fumantes/ex-fumantes, 13 (29,6%) conheciam as consequências pulmonares do tabagismo; somente 2 (4,9%) conheciam os riscos cardiovasculares; 23 (46,9%) acreditavam que fumar não causa nenhum problema para o feto ou o recém-nascido; 21 (42,9%) consumiram álcool durante a gestação; 18 (36,7%) relataram aumento no consumo de cigarros quando bebiam; 25 (51,0%) experimentaram cigarros com sabores; e 12 (24,5%) fumaram narguilé. Entre as 61 gestantes avaliadas, a televisão foi o tipo de mídia mais disponível e favorita (85,2%), assim como a mais preferida (49,2%). Conclusões: Entre gestantes, o fumo ativo, o fumo passivo e o uso de formas alternativas de consumo de tabaco parecem ser altamente prevalentes, e tais mulheres parecem possuir poucos conhecimentos sobre as consequências do uso de tabaco. Programas educacionais que incluam informações sobre as consequências de todas as formas de uso de tabaco, utilizando formatos novos e efetivos para esta população específica, devem ser desenvolvidos para promover a prevenção/cessação do tabagismo entre gestantes. Amostras adicionais para explorar diferenças culturais e regionais são necessárias.

Absence of HPV infection is associated with smoker patients with squamous cell carcinoma of the oropharynx

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

Avaliação do significado social, econômico e cultural do tabagismo em mulheres profissionais do sexo

Pós-graduação em Enfermagem - FMB

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.

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)

SET overexpression decreases cell detoxification efficiency: ALDH2 and GSTP1 are downregulated, DDR is impaired and DNA damage accumulates

Alcohol and tobacco consumption are risk factors for head and neck squamous cell carcinoma (HNSCC). Aldehyde dehydrogenase 2 (ALDH2) and glutathione Stransferase pi 1 (GSTP1) are important enzymes for cellular detoxification and low efficiencies are implicated in cancer. We assessed the potential role of SET protein overexpression, a histone acetylation modulator accumulated in HNSCC, in gene regulation and protein activity of ALDH2 and GSTP1. SET was knocked down in HN13, HN12 and Cal27, and overexpressed in HEK293 cells; ethanol and cisplatin were the chemical agents. Cells with SET overexpression (HEK293/SET, HN13 and HN12) showed lower ALDH2 and GSTP1 mRNA levels and trichostatin A increased them (real-time PCR). Ethanol upregulated GSTP1 and ALDH2 mRNAs, whereas cisplatin upregulated GSTP1 in HEK293 cells. SET-chromatin binding revealed SET interaction with ALDH2 and GSTP1 promoters, specifically via SET NAP domain; ethanol and cisplatin abolished SET binding. ALDH2 and GSTP1 efficiency was assessed by enzymatic and comet assay. A lower ALDH2 activity was associated with greater DNA damage (tail intensity) in HEK293/SET compared with HEK293 cells, whereas HN13/siSET showed ALDH2 activity higher than HN13 cells. HN13/siSET cells showed increased tail intensity. Cisplatin-induced DNA damage response showed negative relationship between SET overexpression and BRCA2 recruitment. SET downregulated repair genes ATM, BRCA1 and CHEK2 and upregulated TP53. Cisplatin-induced cell-cycle arrest occurred in G0/G1 and S in HEK293 cells, whereas HEK293/SET showed G2/M stalling. Overall, cisplatin was more cytotoxic for HN13 than HN13/siSET cells. Our data suggest a role for SET in cellular detoxification, DNA damage response and genome integrity.

Inflammatory Articular Disease in Patients with Inflammatory Bowel Disease: Result of the Swiss IBD Cohort Study

BACKGROUND Inflammatory bowel diseases (IBD) are systemic conditions that commonly display extraintestinal manifestations. Inflammatory articular disease (IAD: axial or peripheral) is the most common extraintestinal manifestation. The aim of this study was to evaluate the prevalence and the clinical characteristics associated with IAD in patients with IBD. METHODS We analyzed patients enrolled in the Swiss IBD cohort study. IAD was defined as persistent or recurrent joint pain with an inflammatory pattern (night pain, progressive relief during the day, morning stiffness lasting at least 30 minutes) or the presence of arthritis as diagnosed by the physicians. A multivariate logistic regression was performed to analyze which disease characteristics were independently associated with the presence of IAD. RESULTS A total of 2353 patients with IBD, 1359 with Crohn's disease, and 994 with ulcerative colitis (UC) were included. Forty-four percent of patients fulfilled the criteria for IAD, whereas 14.5% presented with other extraintestinal manifestations. IAD was associated with Crohn's disease, with female sex, with older age, and generally in patients with more active intestinal disease. Only in UC, IAD was further associated with tobacco smoking and with increasing body mass index. CONCLUSIONS This population of patients with IBD displays a high prevalence of IAD. IAD was more strongly associated with Crohn's disease than UC. Other risk factors for IAD were female sex, advanced age, active digestive disease, and tobacco consumption in patients with UC, which is interesting given the established association between smoking and other inflammatory arthritides.

Thermogravimetric analysis of the pyrolysis of several materials used in the preparation of commercial cigarettes

Comunicación presentada en forma de póster en el "12th Mediterranean Congress of Chemical Engineering", Barcelona (Spain), November 15-18, 2011

Configuración teórica de la motivación de salud desde la teoría de la autodeterminación

El estudio de la motivación humana es un constructo altamente complejo y con una gran variabilidad de enfoques. La teoría de la autodeterminación (TAD) ha demostrado una relativa efectividad y consistencia en muchos aspectos relacionados con la salud, como por ejemplo el ejercicio físico, la alimentación, el sueño, el bienestar psicológico o el consumo de tabaco. Las investigaciones muestran que la motivación autodeterminada se corresponde con la motivación intrínseca y en cambio la motivación extrínseca y sus formas de regulación pueden corresponderse con comportamiento no autodeterminados, pudiendo llegar hasta la desmotivación. En este trabajo se formula una construcción teórica sobre este modelo, introduciendo la percepción de riesgo (PR) y la vulnerabilidad percibida (VP) como elementos que pueden variar el sentido final de la motivación e incluso mejorar alguna de sus regulaciones extrínsecas y la desmotivación. Una de las posibilidades teóricas que sugerimos para intentar neutralizar los tipos no autodeterminados es procurar aumentar la PR y la VP de la persona, ya que estando estas dos variables altas, la probabilidad de que la desmotivación aparezca se reduce significativamente, y las acciones forzadas de la regulación externa y la regulación introyectada pueden amortiguarse y aumentar la internalización lo que podría favorecer los comportamientos de salud.