As early as in the twenties and thirties of our century Ernst Scharrer
published papers suggesting, on the basis of morphological findings,
that the brain exhibits secretory function which he called
neurosecretion. Only a few decades later Scharrer's presumption was
fully confirmed by the isolation of a number of neuropeptides and by the
disclosure of their chemical stuctures. Neuropeptide research is one of
the most rapidly expanding fields in biomedicin. Initially investigators
focused their attention on the existence and role of neuropeptides
within the hypothalamo-hypophyseal system. This particular area of
research still provides plenty of interesting and fruitful findings.
Neuropeptides -including those which were discovered as "hypothalamic"
hormones- can also be detected in other parts of the brain and even in
peripheral organs. In fact, several neuropeptides were found to be
synthesized not only by neurones but also by non-neuronal cells. These
observations imply much wider functional relevance of neuropeptides than
it had been supposed initially. It appears from present day knowledge,
that neuropeptides are not only involved in neurotransmission and in the
control of pituitary function but also in direct regulation of numerous
peripheral biological processes, including reproduction, digestion,
immune functions, and even cell growth. This volume includes the invited
papers of the Symposium on "Progress in Neuropeptide Research" wh ich
was held in Looz/Poland on September 8-10,1988. Topics ofthe symposium
reflect upon newly discovered peptides, new localizations, new
functions, and new technical approaches.