Quantitative Studies of White Matter I. Enzymes involved in glucose-6-phosphate metabolism
نویسنده
چکیده
I N T R O D U C T I O N T h e var ious tracts of the cent ra l nervous system are regions of re la t ive simplici ty wi th in an exceedingly complex organ. Nevertheless there is considerable var ia t ion f rom t rac t to t rac t in the cal iber and length of axons, degree of myel ina t ion , and p r o b a b l y in a m o u n t and even type of glia. Also, tracts v a r y widely in funct ion and in synapt ic t ransmi t te r agent. Ear l ie r studies (7, 23, 25) demons t r a t ed r a the r surprising differences in e n z y m e activities a m o n g a l imited g roup of tracts. There fore , a more com-
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