Peptide degradation
An isolated aminopeptidase degraded DSIP in biochemical assays; this paper does not establish sleep efficacy.
Nyberg et al., 1990 →Sleep-research nonapeptide
DSIP is studied in neuropeptide research. The cited biochemical work characterizes its degradation by an aminopeptidase in human cerebrospinal fluid.

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In vitro · Study formulation · Enzyme isolated from human cerebrospinal fluid
An isolated aminopeptidase degraded DSIP in biochemical assays; this paper does not establish sleep efficacy.
Nyberg et al., 1990 →Literature findings; refer to the model and formulation studied.
DSIP — sleep-research nonapeptide. The literature identity must be matched to the documented chemical form and composition of the supplied material.
Enzyme isolated from human cerebrospinal fluid
An isolated aminopeptidase degraded DSIP in biochemical assays; this paper does not establish sleep efficacy.
Evidence concerns the studied material and model, not the supplied BLOPEP batch.
Nyberg F, Thörnwall M, Hetta J · 1990 · Biochemical and biophysical research communications
DOI: 10.1016/0006-291x(90)90659-bNominal variant content; analytical results belong to the documented batch.
Review specifications, analytical results and documentation for published batches.
Batch results have not yet been published on this page.
Consult the specific conditions in the supplied material documentation.
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