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Hydrophobic interaction chromatography and capillary zone electrophoresis to explore the correlation between the isoenzymes of salivary a-amylase and dental caries
Journal of Chromatography B, 724(1999)381-388,-0001,():
High-performance hydrophobic interaction chromatography (HIC) and capillary zone electrophoresis (CZE) were utilized in an effort to find the correlation between the composition of some isoenzymes of human salivary a-amylase (HSA) and dental caries. The mixture of more than three isoenzymes of HSA, fractionated from human parotid saliva with HIC, was further separated by CZE at the optimum pH 6.50. The composition and relative quantity of these isoenzymes were compared between two groups of individuals with different caries-susceptibility. It is found that the present frequency of peak II on CZE in the caries-free group was higher than that in the caries-active group and the relative quantities of peak III and peak IV showed remarkable differences (p,0.05) between the two groups. These results may indicate that the composition of HSA isoenzymes is related to the occurrence of dental caries. However, more work should be done to further affirm this correlation between the isoenzymes of salivary a-amylase and dental caries.
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