Peptides DB
Research-centric peptide and protocol reference hub

Research library

Every indexed study on every peptide in the database, with a machine summary and the numbers that matter pulled out. Filter on the left; the register updates as you go.

1885studies indexed841with human data111registered trials1630carry a numeric findingLibrarian added 33 studies today
Showing 17 studiesSortNewest indexed
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Baseline gut microbiome ecology predicts long-term fat mass loss after bariatric surgery: evidence for a thrifty <i>Bifidobacterium</i> phenotype.
Matrixyl · Gut microbes · 2026 · Observational · n=106
Higher baseline levels of Bifidobacterium spp. may be linked to less fat mass loss after bariatric surgery, suggesting a need for personalized approaches based on gut microbiome profiles.
Patients in the highest quartile of baseline Bifidobacterium spp. lost 6.6% fat mass at 24 months compared to 13.2% in the lowest quartile, p=0.010.
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A liposome-hydrogel composite ameliorates UVB-induced mouse skin photoaging through integrated antioxidant and extracellular matrix remodeling pathways.
Matrixyl · Drug delivery · 2026 · Observational · Preclinical
The study presents a liposome-hydrogel composite that may enhance the delivery of deer placenta polypeptides for skin protection against UVB-induced damage, but further research in humans is necessary.
2.7-fold enhancement in transdermal permeation.
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Ethnopharmacological validation of the antinociceptive potential of Calotropis gigantea L. flowers: Phytochemical characterization, safety evaluation, and mechanistic insights from in vivo models.
Matrixyl · Journal of ethnopharmacology · 2026 · Observational · Preclinical
Calotropis gigantea shows promise for pain management based on its antinociceptive effects in rats, but further research is needed to confirm its efficacy in humans.
IC50 value of 145.77 ± 4.30 μg/mL for DPPH free radical scavenging activity.
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Nanostructure and Collagen-Stimulating Activity of Cationic Pentapeptide Lipopeptides.
Matrixyl · Journal of peptide science : an official publication of the European Peptide Society · 2026 · Observational
Both C16-KTTKS and C16-RTTRS lipopeptides stimulate collagen production in Human Dermal Fibroblasts at a low concentration of 0.0062 wt%. However, the clinical relevance of these findings remains uncertain.
Collagen production stimulated at low concentration (0.0062 wt%) in Human Dermal Fibroblasts.
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Synergistic Effects of Injectable Platelet-Rich Fibrin and Bioactive Peptides on Dermal Fibroblast Viability and Extracellular Matrix Gene Expression: An In Vitro Study.
Matrixyl · PubMed · 2025 · Observational · Preclinical
The study suggests that combining injectable platelet-rich fibrin with bioactive peptides may enhance dermal fibroblast viability and gene expression, but further research is needed to confirm these effects in clinical settings.
Not reported in abstract.
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