[Regulatory peptides. A functional continuum].

A hypothesis postulating the regulatory peptides continuum is presented. At certain combinations, the numerous regulatory peptides (RP) make up a continuous set of bioactivity spectra, i.e., functionally continuous integrity (continuum) which provides a way for any complex influences on organism functions. Nevertheless, each RP retains its qualitative differences as compared to other RPs. Data on reciprocal influences of RP on their release into body fluids are generalized. The experimental results testify to complex chain reactions of the whole RP continuum in response to changes in any single peptide concentration.