the composite microspectrophotometric study of the content of dna , pas-positive , alcian-positive substances , lipids , and the activity of succinate dehydrogenase and ascorbic acid in the cervical epithelium normally and in cancer tumors showed preinvasive forms of cancer to be characterized by increased polyploidy , content of dna and lipids , and increased activity of succinate dehydrogenase , and decreased content of glycogen , acid mucopolysaccharides and ascorbic acid .
C0027651
tumors
C0006826
cancer