Abstract
The molecular forms of somatostatin, substance P and neurotensin in fresh normal human cerebral cortex have been investigated using high performance liquid chromatography and radioimmunoassay. For each peptide most of the immunoreactivity measured corresponds to a single molecular form co-eluting with the authentic peptide. Small differences in the minor peaks of somatostatin and substance P immunoreactivity are seen when compared to the results of similar studies on post mortem human brain. A substantial difference in the molecular forms of neurotensin was seen which suggests that degradation of this peptide may occur post mortem.
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