Brain & CNS Research
A research overview of peptides targeting neurogenesis, neuroprotection, cognitive function, and CNS repair — from BDNF upregulation to HPA axis modulation and mitochondrial neuroprotection.
Research context only. All compounds listed are for laboratory research purposes. This content does not constitute medical advice, diagnosis, or treatment recommendations.
CNS Research Context
Neurogenesis & BDNF Signaling
Brain-derived neurotrophic factor (BDNF) is the primary driver of adult neurogenesis in the hippocampus. Multiple peptides upregulate BDNF expression, supporting synaptic plasticity and memory consolidation.
Oxidative Stress in Neurodegeneration
Neurons are highly susceptible to oxidative damage due to high metabolic demand and limited antioxidant capacity. ROS accumulation drives mitochondrial dysfunction and is a hallmark of Alzheimer's, Parkinson's, and age-related cognitive decline.
HPA Axis & Stress Neuropeptides
The hypothalamic-pituitary-adrenal axis governs the stress response. Selank and Semax modulate HPA reactivity, reducing anxiety-like behavior and supporting GABAergic tone without benzodiazepine receptor binding.
Cholinergic & Dopaminergic Pathways
Acetylcholine and dopamine are critical for working memory, attention, and executive function. Peptides that modulate these systems show promise in preclinical models of cognitive impairment and neurodegenerative disease.
Peptides Targeting Brain & CNS
CNS Research Pathways
BDNF / Neurotrophin Signaling
BDNF is the master regulator of synaptic plasticity and adult neurogenesis. Semax and Selank both upregulate BDNF expression in the hippocampus, supporting memory consolidation and cognitive resilience.
Neuroprotection & Antioxidant Defense
Oxidative stress and mitochondrial dysfunction are central to neurodegeneration. NAD+, MOTS-c, and BPC-157 protect neurons through complementary antioxidant, DNA repair, and energy metabolism mechanisms.
HPA Axis & Anxiolytic Pathways
Chronic HPA hyperactivation drives hippocampal atrophy and cognitive impairment. Selank modulates GABAergic tone and reduces HPA reactivity without receptor dependence or tolerance development.
GH/IGF-1 Neurogenesis Axis
IGF-1 crosses the blood-brain barrier and is a potent driver of hippocampal neurogenesis. GH secretagogues that elevate IGF-1 support neuronal survival, synaptic plasticity, and cognitive function.
Key Studies in CNS Research
Semax Upregulates BDNF and NGF in the Hippocampus
Semax administration significantly upregulated BDNF and NGF expression in rat hippocampus, with neuroprotective effects in cerebral ischemia models and improvements in spatial memory tasks.
Selank Anxiolytic and BDNF Effects
Selank produced anxiolytic effects via GABAergic modulation without benzodiazepine receptor binding, and upregulated BDNF in hippocampal tissue, suggesting dual anxiolytic-neurotrophic activity.
NAD+ in Aging and Neurodegeneration
NAD+ depletion is a central driver of age-related neurodegeneration. NAD+ repletion via SIRT1 and PARP pathways protects against mitochondrial dysfunction and neuronal death in multiple models.
GHK-Cu and Neuroprotective Gene Expression
GHK-Cu modulates the expression of 31 neuroprotective genes, including NGF, anti-inflammatory cytokines, and antioxidant enzymes, positioning it as a broad-spectrum neuroprotective agent.
Explore These Compounds
Browse the full catalog of research peptides available from SwissNova Labs.