Abstract
Influences of magnesium, calcium and associate minerals to cerebral blood flow and brain function were studied in 66 normal aged people (31 males, 35 females, mean age of 75.6 years). The concentration of magnesium, calcium, phosphate, sodium and potassium in hair which were thought possively reflected whole body storage were measured by ICP method (Japan midical preventive system). The regional cerebral blood flow (rCBF) was measured by 133Xe inhalation method.
1) There were no significant relationships between age, mean blood pressure and these minerals in hair.
2) Mean rCBF showed significant correlation with magnesium and calucium in hair (r=0.48 and r=-0.35 respectively) and inverse correlation with phosphate (r=-0.27).
3) Verbal and performance intelligences and self-rating depression score (SDS) did not show significant correlation with these minearals in hair.
4) Females showed significantly higher magnesium and calcium in hair than that of males, and rCBF of females was also higher than males. But there were no sex-differences in intelligences and SDS.
