Research Use Only
This page is intended for educational and research purposes only. Apex Pep Lab products are not intended for human or animal use.
Summary
Semax is a synthetic research peptide based on a small fragment of ACTH, a hormone-related peptide involved in stress and signaling biology. Researchers are interested in Semax because it has been studied in brain signaling, stress-response models, neuroprotection, learning and memory models, and neurotrophic-factor pathways such as BDNF. In simple terms, Semax is often discussed as a peptide that may influence how nerve cells respond to stress, communicate, and adapt in experimental research models.
Overview
Semax is a synthetic heptapeptide with the sequence Met-Glu-His-Phe-Pro-Gly-Pro. It is commonly described as an analog of the ACTH(4-10) fragment with an added Pro-Gly-Pro sequence. The Pro-Gly-Pro portion is discussed in research literature as contributing to metabolic stability. Semax has been studied as a melanocortin-derived neuropeptide in relation to neuroprotection, neurotrophic-factor expression, cognitive models, ischemia models, stress response, and monoaminergic signaling.
Research Background
Published research has examined Semax in relation to cerebral ischemia models, gene-expression changes, BDNF and TrkB signaling, neurotrophin regulation, immune and vascular gene expression, dopaminergic and serotonergic systems, and stress-related behavioral models. Much of the available mechanistic literature is preclinical, including rodent models, gene-expression studies, and brain-tissue analysis. Some clinical research has also evaluated Semax in cerebrovascular and ischemic-stroke contexts, but this page focuses on research background rather than human-use guidance.
Mechanisms Studied
Research interest around Semax often focuses on neurotrophic signaling, particularly BDNF and TrkB-related pathways. Studies have also explored Semax effects on expression of genes connected to immune signaling, vascular function, inflammation response, and neuronal adaptation after ischemic injury. Additional research has examined monoaminergic systems, including dopaminergic and serotonergic markers, as well as stress-related behavioral models.
Published Research Summary
One study reported that Semax, an analog of ACTH(4-10), affected cognitive brain-function research models by modulating BDNF/TrkB-related signaling in the hippocampus. Another study found that Semax specifically bound in rat basal forebrain and increased brain-derived neurotrophic factor protein levels. Research in ischemia models has also examined Semax-related changes in immune and vascular gene expression, brain protein-expression profiles, and neuroprotective pathways. Overall, Semax is best understood as an ACTH-derived research peptide studied for its relationship to neurotrophic signaling, stress response, and neuroprotection models.
Quality & Verification
For research compounds such as Semax, documentation is important. Researchers commonly review batch-specific Certificates of Analysis, HPLC purity data, mass spectrometry verification, lot identification, and compound identity testing to evaluate analytical quality and consistency. Because Semax is a defined short peptide sequence, molecular identity and purity verification are especially important for research-use documentation.
References & Published Research
- Novel Insights into the Protective Properties of ACTH(4-7)PGP (Semax) in Experimental Research
- Semax, an Analog of ACTH(4-10), with Cognitive Effects Modulates the Hippocampal BDNF/TrkB System
- Semax, an Analogue of ACTH(4-10), Binds Specifically and Increases Brain-Derived Neurotrophic Factor in Rat Basal Forebrain
- The Peptide Semax Affects the Expression of Genes Related to the Immune and Vascular Systems in Rat Brain Ischemia Models
- Brain Protein Expression Profile Confirms the Protective Effect of ACTH(4-7)PGP Peptide Semax in a Rat Model of Cerebral Ischemia-Reperfusion
- Semax, an ACTH(4-10) Analogue, and Dopaminergic/Serotonergic System Research