Peptides are short chains of amino acids linked by peptide bonds. They play crucial roles in body functions, including acting as neurotransmitters and hormones.
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Peptides can influence brain function by acting as neurotransmitters or neuromodulators.
Certain dietary peptides have been shown to affect cognitive function and mood.
Peptides derived from proteins during digestion can cross the blood-brain barrier.
Some peptides have neuroprotective effects, potentially aiding in the prevention of neurodegenerative diseases.
Amino acid composition and sequence determine the specific function of a peptide in the nervous system.
Review Questions
How do peptides act within the nervous system?
What is the significance of dietary peptides on cognitive function?
Explain how peptides can cross the blood-brain barrier and their potential impact.
Related terms
Neurotransmitter: Chemical substances that transmit signals across a synapse between neurons.
Amino Acids: Organic compounds that combine to form proteins and serve as building blocks for peptides.
Blood-Brain Barrier: A selective permeability barrier that separates circulating blood from the brain extracellular fluid in the central nervous system.