Neuroprotective Effects
VIP is known to modulate neuroinflammation and promote neuronal survival through its interaction with VPAC1 and VPAC2 receptors. It has been studied for its potential role in protecting against neurodegenerative conditions and enhancing cognitive function.
Immune Regulation
Research suggests VIP exerts immunomodulatory effects by regulating cytokine production and inhibiting pro-inflammatory pathways. It may help maintain immune system balance and reduce chronic inflammation.
Gastrointestinal Function
VIP is involved in regulating smooth muscle activity, secretion, and motility in the gastrointestinal tract. Its role in maintaining gut homeostasis and integrity has been of significant interest in clinical and preclinical studies.
Cardiovascular Regulation
VIP has significant cardiovascular effects, including positive inotropic action on cardiac muscle, regulation of coronary blood flow, and modulation of heart rate. Studies also indicate a protective role for VIP in inflammatory cardiovascular conditions such as myocarditis and atherosclerosis.
Respiratory and Pulmonary Function
VIP is an abundant neurotransmitter in the lungs, and research has explored its involvement in pulmonary conditions such as pulmonary arterial hypertension, chronic obstructive pulmonary disease, asthma, cystic fibrosis, and acute lung injury. It is known for its bronchodilatory and vasodilatory actions in the airway.
Circadian Rhythm Regulation
VIP has emerged as a key candidate molecule mediating the synchronization of rhythms in clock gene expression within the suprachiasmatic nucleus (SCN), the brain's central circadian pacemaker, and plays a critical role in the neural circuit generating circadian rhythms.
