Fluxo salivar e concentração do fator de crescimento epidérmico (EGF) na saliva de pacientes diabéticos tipo 2 / Salivary flow and epidermal growth factor (EGF) levels in saliva of type 2 diabetic patients

RESUMO

O objetivo deste trabalho foi o de avaliar o fluxo salivar e a concentração do EGF na saliva de pacientes diabéticos, comparados a um grupo controle de pacientes clinicamente sadios. A amostra foi composta de 15 indivíduos divididos em dois gruops, G0 - controle (n=9) e G1 - diabéticos (n=6). A saliva foi coletada por estimulação mecânica com o auxílio de um hiperboloide. A concentração do EGF foi verificada por meio de imunoensaio do tipo sanduíche, com a utilização de Kit ELISA (R&D Systems®) e auxílio de um leitor de microplaca. Pôde-se observar uma média do fluxo salivar de 1,27 ml/min. no G0 e 1.26 ml/min. no G1, não havendo diferença estatisticamente significativa entre os dois grupos, quando empregado o teste t-Student (p=0,972). Quando ao EGF, foram observadas as médias de 1624,08 pg/ml e 2367,66 pg/ml para o G0 e G1, respectivamente, também não sendo esta diferença significante (p=0,559). Os dados deste trabalho demonstram que não houve diferenças significativas do fluxo salivar e da concentração de EGF na saliva dos pacientes diabéticos em relação ao grupo controle.

ABSTRACT

The aim of this study was to evaluate the salivary flow and the concentration of EGF in saliva of diabetic patients not insulin-dependents compared with a non diabetic patients (control group). Stimulated saliva was collected in two groups of patients G0 - control (n=9) and G1 - diabetics (n=6), using a hiperbolóide. Saliva was expelled in the first minute and it was despised. In the following five minutes it was collected with a funnel connected to a graduated tube. EGF concentration measurement was performed using a sandwich-type immunoassay, using an ELISA Kit (R&D Systems®) and a microplate reader. It was observed an average of salivary flow of 1.27ml/min. in G0 and 1,26ml/min. in G1 and it was not found significant differences between the two groups (p=0,972). It was also observed an average of 1624.08 pg/ml of EGF in the G0 and 2367.66 pg/ml in the G1 and as the salivary flow the difference was not statistically significant (p=0.559). The data present in this work demonstrate no differences between salivary flow and EGF concentration of diabetic patients as compared as non-diabetic patients.