Berrettini W H, Nurnberger J I, Gold P W, Chretien M, Chrousos G P, Chan J S, Goldin L R, Gershon E S
Life Sci. 1985 Sep 30;37(13):1265-70. doi: 10.1016/0024-3205(85)90139-0.
Ten neuropeptides were measured by RIA in human cerebrospinal fluid obtained from 30 normal volunteers. The levels of seven peptides (corticotropin releasing factor, adrenocorticotropin, vasoactive intestinal peptide, somatostatin, beta-endorphin, beta-lipotropin, and the N-terminal fragment of proopiomelanocortin) were highly, positively correlated with one another. This result is consistent with the hypothesis that cerebrospinal fluid levels of these seven peptides are a function of some common regulatory factor, such as shared release into the cerebrospinal fluid.