igf-1
4 articles tagged with ‘igf-1’
IGF-1 (Insulin-Like Growth Factor 1): Structure, Signaling, and Research Applications
IGF-1 peptide structure, signaling pathways, and preclinical research applications for laboratory investigation.
Premium Research Peptides: What Defines Research-Grade Quality
Explore what defines research-grade peptide quality, from purity and characterization to evidence standards and safety considerations.
Insulin-Like Growth Factors: IGF-1 and IGF-2 Explained
Insulin-like growth factors IGF-1 and IGF-2 play key roles in growth and development. IGF-1, stimulated by growth hormone, rises 2-3 fold during puberty and acts as both endocrine and local growth factors. IGF-2 supports fetal growth and binds distinct receptors, influencing proliferation and survival.
Sermorelin Effects on Pituitary and Testicular Cells
Sermorelin, a 29-amino-acid analog of growth hormone-releasing hormone, activates receptors on anterior pituitary cells to boost hGH secretion roughly twofold, from 1.1 to 2.2 μg/L over 12 hours. Studies show this leads to IGF-1 increases of 27-28% and may enhance testosterone production in Leydig cells via upregulated IGF-1. Lab experiments highlight cAMP-PKA signaling and calcium-dependent mechanisms driving these responses.