Programa de Pós-Graduação em Oncologia e Ciências Médicas - PPGOCM/NPO
URI Permanente desta comunidadehttps://repositorio.ufpa.br/handle/2011/4631
O Programa de Pós-Graduação em Oncologia e Ciências Médicas (PPGOCM) integra o Núcleo de Pesquisas em Oncologia (NPO) da Universidade Federal do Pará (UFPA). Trata-se do único centro de referência em pesquisa e formação de recursos humanos stricto sensu na área de oncologia na região Norte do Brasil. Os outros centros se concentram nas cidades do Rio de Janeiro e São Paulo.
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Item Acesso aberto (Open Access) Análise de componentes principais de variáveis nutricionais e de polimorfismos nos genes MDM2, XRCC1 E MTHFR como fatores de risco para Carcinoma Hepatocelular em pacientes com Hepatite C Crônica(Universidade Federal do Pará, 2016-03-16) PINHO, Priscila Matos de; DEMACHKI, Samia; http://lattes.cnpq.br/7568391537270652; ARAÚJO, Marília de Souza; http://lattes.cnpq.br/9371703949781020Introduction: Liver diseases are among the leading causes of morbidity and mortality in the world. Hepatitis C is present in approximately 20% of cases of acute hepatitis and 70% of cases of chronic hepatitis. E has been associated with the presence of accumulation of intrahepatic lipids (fatty liver) and it often progresses to development of liver cirrhosis and hepatocellular carcinoma (HCC) is the leading cause of liver transplantation. Objective: To evaluate the relationship of nutritional variables and polymorphisms of MDM2 gene, MTHFR and XRCC1 with risk to HCC in patients with chronic hepatitis C. Methods: case - control performed with patients with chronic hepatitis C. Cases were patients with chronic HCV infection, those with positive anti-HCV and HCV-RNA for six months or more since the detection of the infection within the clinical presentation parameters. They considered participants in the control group healthy subjects aged> 20 years, of both sexes. They were invited to participate in the voluntary survey. We used a nutritional assessment questionnaire. The presence of MDM2 polymorphisms (rs3730485) was investigated; XRCC1 (rs3213239) and MTHFR (rs1801133). It used the Fisher's exact test, odds ratio, and analysis of Principal Components. Results: For genotyping, it was found similarity in frequency of polymorphisms of MTHFR genes XRCC1 and MDM2 in both groups. The odds ratios that had significant p values were low fruit intake, physical inactivity and BMI> 25 kg / m². The results of principal component analysis are indicative that there are at least three pathophysiologic processes that operate in the cluster of risk factors for HCC, and are strongly related to body fat, alcohol consumption and low consumption of fruits. Conclusion: The patients evaluated aggregate risk factors for the development of HCC.Item Acesso aberto (Open Access) Estado nutricional e marcadores clínico-bioquímicos em indivíduos portadores de carcinoma gastrointestinal(Universidade Federal do Pará, 2014-11-04) MIRANDA, Tayana Vago de; ARAÚJO, Marília de Souza; http://lattes.cnpq.br/9371703949781020The nutritional status of patients with gastrointestinal carcinoma is frequently affected, being aggravated by the carcinogenesis that promote activation of the inflammatory process and subsequent activation of the immune system, with production of cytokines and acute phase proteins, such as C-reactive protein, which results in hypermetabolism, accelerating weight loss and progresses to cachexia. This study aimed to analyze the nutritional status and biochemical-clinical markers in patients with gastrointestinal carcinoma, treated at Hospital Universitário João de Barros Barreto (HUJBB), in Belém-PA. Was conducted a descriptive, observational and cross-sectional study involving patients with gastrointestinal carcinoma treated at HUJBB from december 2013 to july 2014. Nutritional assessment was conducted by anthropometric parameters, which included body mass index (BMI), percentage weight loss (%PWL), arm circumference (AC), arm muscle circumference (AMC), arm muscle area corrected (CAMA), triceps skinfold thickness (TST) and muscle adductor pollicis (MAP), biochemical parameters, by classifying hemoglobin, total lymphocyte count (TLC), albumin, transferrin, index-inflammatory nutritional prognosis (IPIN ) and subjective parameters, using the subjective global assessment produced by the patient (ASG-PPP), besides the identification and classification of cachexia. 44 patients were evaluated, 63.3% were male with a mean age of 61.2 years (±13.3); 95.50% were natural of Pará, 45.50% living in the countryside, 50.00% had incomplete education in primary and 52.30% had no family income. 63.60% of the patients evaluated, had stomach cancer; of these, 50.00% were in clinical stage IV and 73.30% in surgical treatment, with an average hospital stay of 45.85 days (± 32.97). In nutritional assessment was obtained 20.50% eutrophy in adults and 42.30% for seniors through BMI, however, in isolated assessment of muscle and fat compartments, there was 59.10% of severe depletion by of CAMA, 54.50% by the TST, 75.00% with the presence of depletion in AC and 68.18% in AMC. Severe weight loss was observed in 61.36% of the patients and in the MAP was obtained higher prevalence of moderate depletion (30.20%). At biochemical parameters, there was severe reduction in hemoglobin to 61.40% of patients, slight depletion of CTL in 56.80%, 47.70% for albumin and 45.50% with moderate depletion in transferrin. In the assessment of IPIN, was obtained medium risk complication for 56.80% of the patients. In ASG-PPP, 63.60% of patients were classified into severe malnutrition and the presence of symptomatic cachexia, was 54.50%. With regard to the correlation analysis, it was found that there was a positive and significant correlation of BMI with AMC, AC, TST, CAMA, MAP and hemoglobin; AMC with AC, and CAMA; AC with TST, CAMA, MAP, and hemoglobin; TST, CAMA; CAMA with MAP. In the principal component analysis, it was found as the most sensitive methods to detect malnutrition the assessment of AC, CAMA, AMC, BMI, TST, MAP, IPIN and evaluation of cachexia. Thus, the results obtained in this study indicate the nutritional impairment in patients with gastrointestinal carcinoma by different parameters, thus demonstrating that malnutrition occurs globally, with loss of both adipose tissue, muscle tissue as well as changes biochemical level.Item Acesso aberto (Open Access) Perfil nutricional de pacientes com carcinoma de células escamosas e lesões potencialmente malignas de boca e orofaringe atendidos em um serviço de referência no município de Belém-PA(Universidade Federal do Pará, 2015-12-10) COSTA, Lilian Pereira da Silva; ARAÚJO, Marília de Souza; http://lattes.cnpq.br/9371703949781020Oral cancer presents the fifth incidence among men in Brazil. Potentially malignant disorders represent an early stage oral cancer. The aim this work was to investigate the nutritional status of patients with squamous cell carcinoma (SCC) and potentially malignant disorders from mouth and oropharynx treated at a reference center in Belém city. Thus, it was a cross-sectional, descriptive study. The sample consisted of 41 participants, 58.5% male, average 60.3 years old, 43.9% with potentially malignant disorders (leukoplakia or actinic cheilitis), and 56.1% with SCC. The predominant localization was in mouth. Most (63.4%) of participants lived in Belém and metropolitan area, 65.9% with family income up to 2 minimum wages, 51.2% with more than 8 years of schooling, 53.7% smoke or have smoked regularly 75.6% eat or drank alcoholic beverages daily, 65.9% reported moderate/intense sun exposure. Regarding nutritional status, the total sample, according to the body mass index (BMI), 41.5% were normal weight, 14.6% underweight and 43.9% overweight/obesity. With respect to the adequacy of the Usual Weight (UW), 70.7% were eutrophic. As the adequacy of the arm circumference (AC), 48.8% were normal weight, 46.5% malnutrition. The assessment of the adequacy of the triceps skinfold (TSF), 39.0% were malnutrition, 36.6% overweight/obesity, 24.4% eutrophic. Considering the adequacy of arm muscle circumference (AMC), 51.2% were eutrophic, 48.8% undernourished. According to the muscle area corrected arm (MACA), 53.7% were malnutrition. Considering the Subjective Global Assessment (SGA), 87.8% were well nourished. When analyzed for the presence or absence of malnutrition using different methods, comparing the groups, it was found that BMI, adequacy of UW, adequacy of CB, MACA and ASG showed statistically significant results (p<0.05). Regarding eating habits, the population evaluated presented low consumption of fruits, vegetables, main dietary protective factors, constituting food inadequacy both for patients with potentially malignant disorders and for SCC. Therefore, the group of potentially malignant disorders presented for all methods of evaluation used predominantly eutrophic. Among the methods that evaluated the muscle and fat reserves, MACA showed the highest percentage of individuals with malnutrition, with higher values in the group with SCC. A comparison of the nutritional status between the two groups of lesions can be seen higher percentage of malnutrition among patients with SCC, considering the different anthropometric methods.