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 16 studiesSortNewest indexed
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Effects of Different Training Modalities on Circulating Irisin Levels in Overweight and Obesity Adults: A Systematic Review and Meta-analysis of Randomized Controlled Trials.
Follistatin-344 · Sports medicine (Auckland, N.Z.) · 2025 · Meta-analysis · n=1780
Exercise training significantly increases circulating irisin levels in overweight and obese adults, but the differences between types of exercise are not statistically significant.
SMD 0.62, 95% CI 0.39-0.85, p < 0.001, n=76 arms, 1721 subjects for circulating irisin increase.
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Serum-Free Expanded Hair Follicle Mesenchymal Stem Cells Promote Cartilage Repair in a Murine Full-Thickness Defect Model.
Follistatin-344 · Transplantation and cellular therapy · 2026 · Observational · Preclinical · n=4
This study indicates that hair follicle-derived mesenchymal stem cells can be expanded in serum-free conditions and may improve cartilage repair in a murine model, but further research is needed to confirm these findings in humans.
Significant improvement in histological cartilage repair scores relative to phosphate-buffered saline controls.
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Intrafollicular activin-A, inhibin-B, and follistatin are associated with in vitro fertilization outcomes in subfertile women.
Follistatin-344 · Hormones (Athens, Greece) · 2023 · Observational · n=86
Follistatin and inhibin-B in follicular fluid may correlate with IVF outcomes, but activin-A's inverse association with success needs further validation.
Each 10 pg/mg increase in protein-normalized FF activin-A was associated with clinical pregnancy [RR (95% CI) = 0.76 (0.66-0.86), p<0.001].
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Combined resistance exercise and essential amino acid intake enhance follistatin/myostatin ratio and muscle fitness in older women: a randomized controlled trial.
Follistatin-344 · Journal of the International Society of Sports Nutrition · 2026 · RCT · Phase 4 · n=96
Combining resistance exercise with essential amino acid intake may enhance muscle mass and fitness in older women more effectively than either intervention alone.
F(3, 72) = 5.556, p = 0.002, partial η² = 0.188 for follistatin/myostatin ratio increase in RE + EAA group.
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Longitudinal plasma proteomics along a menstrual cycle highlights the regulatory effect of sex hormones on inflammatory and cardiometabolic circuits.
Follistatin-344 · biorxiv-preprint · 2026 · Observational
This study provides a comprehensive proteomic analysis of the menstrual cycle, highlighting the regulatory effects of sex hormones on various biological pathways. However, the clinical implications of these findings are not fully established.
Not reported in abstract.
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