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    Can Bone-Specific Alkaline Phosphatase and Osteocalcine Levels Be Used to Determine the Age in Children?
    (Lippincott Williams & Wilkins, 2020) Topal, Ismail; Gumus, Burak
    Background Demand for age determination by medical methods from legal authorities is of critical importance, especially for people in pubertal age. We planned this study to evaluate the potential utility of biochemical methods in these applications. We aim to investigate whether alkaline phosphatase (ALP), bone-specific alkaline phosphatase (BALP), and osteocalcine can be used in the determination of age. Materials and Methods A total of 146 children (85 girls, 61 boys) between the ages of 9 and 16 years participated in the study. Considering legally defined age limits, we did the age grouping at the following intervals: we formed 3 different subgroups, (1) 9 to 11 years age group, (2) 12 to 14 years age group, and (3) 15 to 16 years age group. As the physiological growth and development processes changed according to sex, all calculations were done separately for girls and boys. Results Our data indicate that ALP and BALP values for girls can be used for age determination with acceptable sensitivity and specificity. However, we could not observe such precise distinction for boys. Although BALP is claimed to be superior to ALP, we have not found any evidence to confirm this in our study. Conclusions This study provides sex- and age-dependent cutoff values for ALP and BALP for the girl, which may be useful for age determination.