Anti-ischemic activity of carnosine

Area of Science:

• Biochemistry
• Pharmacology
• Neuroscience

Background:

• Ischemia, a condition of reduced blood flow, poses significant risks to vital organs like the brain and heart.
• Carnosine, a dipeptide, is known for its antioxidant and physiological roles.
• Understanding carnosine's protective mechanisms against ischemia is crucial for developing novel therapeutic strategies.

Purpose of the Study:

• To review and summarize existing data on the anti-ischemic activity of carnosine.
• To elucidate the molecular mechanisms underlying carnosine's protective effects in ischemic conditions.
• To evaluate the therapeutic potential of carnosine as an anti-ischemic agent.

Main Methods:

• Literature review of studies investigating carnosine's effects on experimental models of cerebral and cardiac ischemia.
• Analysis of data on carnosine's biochemical and physiological properties, including antioxidant, buffering, metal-chelating, and immunomodulatory functions.
• Assessment of carnosine's impact on mortality, neurological deficits, cardiomyocyte protection, and cardiac contractility.

Main Results:

• Carnosine exhibits pronounced anti-ischemic effects in both cerebral and cardiac ischemia models.
• Its protective actions are attributed to a combination of antioxidant, membrane-stabilizing, proton buffering, metal-chelating, and macrophage-regulating properties.
• In cerebral ischemia, carnosine reduced mortality and improved neurological outcomes.
• In cardiac ischemia, carnosine protected cardiomyocytes and enhanced heart contractility.

Conclusions:

• Carnosine possesses significant anti-ischemic properties beneficial for both brain and heart.
• The multifaceted mechanisms of carnosine support its therapeutic potential.
• Carnosine is a promising candidate for development as an anti-ischemic drug.