| Abstract: | Vitamin C (ascorbic acid) levels in cerebrospinal fluid (CSF) and plasma from 67 children, in whom lumbar puncture had to be performed for medical reasons, are reported in this preliminary paper. 14 children of this group show normal CSF laboratory values and serve as controls. Vitamin C concentrations in CSF of controls are on average 2.5-3-times higher (30.1 +/- 6.3 mg/l) than the pertaining values in their plasma (12.2 +/- 4.9 mg/l). Significant differences are exhibited by premature and term babies, which have up to 16-times higher values of vitamin C in CSF than in plasma. Furthermore CSF vitamin C is 4-5 times higher in premature babies than in schoolchildren of our group (118.2 +/- 65.9 versus 28.3 +/- 3.0 mg/l). Another interesting finding in this study is a significant decrease of CSF vitamin C in cases of acute purulent meningitis (12.3 +/- 4.8 versus 30.1 +/- 6.3 mg/l, p less than 0.05). These results, in connection with reports about high vitamin C concentrations in brain tissue, particularly in prematures, make one suspect important functions of this vitamin in physiological and pathological mechanisms in the central nervous system. |
