Guide

Endocrine and immune signalling peptides

Built from index records dated 2026-10-09 Compiled by an automated pipeline, checked by The Peptide Observer editorial desk How this site works

Endocrine and immune signalling peptides is a group of 14 entries in this index, of which this site describes 3 and holds 11 back pending review.

Only the described entries are counted anywhere on this page.

What this group is

This group holds 14 entries.

No entry in this group carries a receptor or a pathway in its records. The group is held together by the research subject its literature shares, not by a mechanism, and this site does not invent one for it.

The entries described here

Delta sleep-inducing peptide

12 records kept: 6 in rodents, 6 not stated. The records kept here are animal and laboratory studies only.
Gonadorelin

12 records kept: 1 in rodents, 11 not stated. The records kept here are animal and laboratory studies only.
Somatostatin

12 records kept: 8 in rodents, 4 not stated. The records kept here are animal and laboratory studies only.

Publication years of all 36 records kept for the described entries in this group. Oldest 1984, newest 2023. An old record is not a worse record, but a group whose marks all sit to the left has not been looked at recently.

What is held back

11 entries in this group are built and then held back, because publishing them without a qualified reviewer would risk being read as medical guidance. They are: Kisspeptin-10, Thymosin alpha 1, Oxytocin, Vasopressin, Desmopressin, Triptorelin, Leuprolide, Vasoactive intestinal peptide, Octreotide, Teriparatide and Thymulin. This page says nothing about what their records contain. Why entries are held back.

What is not known

Whether the members of this group have anything in common beyond what the counts above show. A shared receptor is a shared target, not a shared result.
What any of these entries does in a body. Nothing on this site has been read in full, and no record here has been appraised by anyone qualified to appraise it.
Anything at all about the held-back entries named above, beyond the fact that they exist and are being withheld.

Where this comes from

This page reprints no wording from the underlying index. These are the published records that index cites for the existence of this group, listed so the grouping can be checked rather than taken on trust.

Central and peripheral administration of kisspeptin-10 stimulates the hypothalamic-pituitary-gonadal axis. Journal of neuroendocrinology (2004). pmid:15500545
Delta-sleep-inducing peptide (DSIP): an update. Peptides (1986). pmid:3550726
Thymosin alpha 1 activates dendritic cells for antifungal Th1 resistance through toll-like receptor signaling. Blood (2004). pmid:14982877
Comparison of gonadorelin products in lactating dairy cows: efficacy based on induction of ovulation of an accessory follicle and circulating luteinizing hormone profiles. Theriogenology (2009). pmid:19394072
Kisspeptin-10, a KiSS-1/metastin-derived decapeptide, is a physiological invasion inhibitor of primary human trophoblasts. Journal of cell science (2004). pmid:15020672
Kisspeptin-10 is a potent stimulator of LH and increases pulse frequency in men. The Journal of clinical endocrinology and metabolism (2011). pmid:21632807
Evidence that [125I]N-Tyr-delta sleep-inducing peptide crosses the blood-brain barrier by a non-competitive mechanism. Brain research (1984). pmid:6547363
Increased sleep following intracerebroventricular injection of the delta sleep-inducing peptide in rats. Neuroscience letters (1983). pmid:6688864
The efficacy of thymosin alpha 1 for severe sepsis (ETASS): a multicenter, single-blind, randomized and controlled trial. Critical care (London, England) (2013). pmid:23327199
LH and FSH response of Holstein heifers to fertirelin acetate, gonadorelin and buserelin. Theriogenology (1990). pmid:16726818