Evaluation of the effects of human, cow and goat milk on the fermentation and synthesis of extracellular polysaccharides in human dental plaque in vitro study / Avaliação do efeito dos leites materno, de vaca e de cabra sobre a fermentação e síntese de polissacarídeos extracelulares na placa dentária humana. Estudo "in vitro"
AUTOR(ES)
Marcelo Pires Prestes
DATA DE PUBLICAÇÃO
2003
RESUMO
Several types of milk are consumed by human beings besides human milk, such as cow milk, goat milk, and others. Among several other components, the milk contains lactose, which is a disaccharide composed of glucose and galactose. Dental caries, as a multifactorial disease, requires a cariogenic substrate on which to develop, in addition to the bacteria present in dental plaque, which employ the dietary carbohydrates in their metabolism. Considering the high intake of milk by mankind and the clinical reports that suggest its participation in caries development, the present in vitro study evaluated the influence of three types of whole milk, namely human, cow and goat milk, on human dental plaque metabolism as to the capacity of fermentation and synthesis of extracellular polysaccharides. A pool of dental plaque obtained from 50 children aged 10 to 15 years old attending an institution in the city of Bauru was laboratory treated and submitted to biochemical studies specifically for the fermentation and synthesis of extracellular polysaccharides. The obtained results were submitted to one and two-way variance analysis (ANOVA) at a significance level of 5% and the Tukey-Kramer test was employed to compare the different types of substrates. It was conc luded that all three types of milk demonstrated in vitro fermentation and synthesis of extracellular polysaccharides. Goat milk presented the smallest level of fermentation, followed by cow milk and human milk. Concerning the synthesis of polysaccharides, the highest outcome was achieved for goat milk, followed by cow milk and human milk.
ASSUNTO(S)
leite polissacarídeos placa bacteriana
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