Vasoactive Intestinal Peptide (VIP) is a 28–amino acid neuropeptide originally isolated from the porcine small intestine. It functions as a signaling molecule in both the central and peripheral nervous systems and has been widely studied for its diverse biological roles in vasodilation, immune modulation, and cellular communication. VIP belongs to the glucagon/secretin peptide family and is of high interest in neuroscience, immunology, and pulmonary research.
 
Key Characteristics and Functions:
 
Immune System Modulation: VIP is studied for it's ability to balance immune responses, making it potentially effective in managing autoimmune diseases like rheumatoid arthritis and chronic inflammatory conditions.
 
Respiratory Health: It promotes bronchodilation (relaxation of airways) and improves blood flow and oxygenation to lung tissues, showing promise in treating conditions like asthma, COPD, and pulmonary hypertension.
 
Gastrointestinal Health: Research has shown that VIP helps regulate gut motility, control stomach acid secretion, and maintain a healthy intestinal wall and microbial balance. This may benefit individuals with conditions like Irritable Bowel Syndrome (IBS) or Inflammatory Bowel Disease (IBD).
 
Neuroprotective Potential: By promoting healthy blood flow to the brain and reducing neuroinflammation, VIP may support cognitive function and help alleviate "brain fog" and fatigue, particularly in patients with conditions like Chronic Inflammatory Response Syndrome (CIRS) or neurodegenerative disorders.
 
Cardiovascular Support: Studies have shown VIP to act as a potent vasodilator, widening blood vessels to improve circulation and lower arterial and pulmonary blood pressure.
 
Circadian Rhythm Regulation: VIP is also studied for it's essential role as a neurotransmitter in synchronizing the body's internal clock, which can aid in addressing sleep disruptions.