Neuroprotection
Definition
Neuroprotection refers to mechanisms and strategies that preserve neuronal structure and function against damage from injury, disease, or toxic insults. It encompasses both endogenous protective pathways and exogenous interventions aimed at preventing neuronal death, reducing neuroinflammation, and maintaining synaptic integrity.
Key Neuroprotective Mechanisms
Several pathways contribute to neuronal resilience:
- Neurotrophic factor signalling — BDNF, NGF, and GDNF activate survival cascades through Trk receptors and PI3K/Akt pathways
- Anti-oxidant defence — Enzymatic (SOD, catalase, glutathione peroxidase) and non-enzymatic systems neutralise reactive oxygen species
- Anti-inflammatory modulation — Reducing microglial activation and pro-inflammatory cytokine release (TNF-α, IL-1β, IL-6)
- Calcium homeostasis — Preventing excitotoxic calcium overload from excessive glutamate signalling
- Mitochondrial protection — Maintaining mitochondrial membrane potential and preventing cytochrome c release
Relevance to Peptide Research
Neuroprotection is a major research theme across several peptide families. Semax and Selank are studied for BDNF upregulation and anti-inflammatory effects in neural tissue. Humanin demonstrates protection against amyloid-beta toxicity in Alzheimer’s disease models. BPC-157 has shown neuroprotective effects in traumatic brain injury and peripheral nerve damage models. Dihexa is investigated for neurotrophic activity through the HGF/c-Met pathway. These diverse mechanisms reflect the complexity of neuroprotective research.
Related Peptides
Peptide profiles that reference “Neuroprotection” in their research content.