Taurine supplementation prevents endothelial dysfunction and attenuates structural changes in aortas from...

Area of Science:

• Biochemistry
• Cardiovascular Physiology
• Metabolic Disease Research

Background:

• Obesity is a major risk factor for cardiovascular and metabolic diseases.
• L-taurine (Tau) plays a role in regulating glucose, lipid homeostasis, and vascular function.
• Endothelial dysfunction is a key contributor to obesity-related cardiovascular complications.

Purpose of the Study:

• To investigate the potential of L-taurine (Tau) supplementation in preventing endothelial dysfunction.
• To assess the effects of Tau on thoracic aortas in monosodium glutamate-induced obese (MSG) rats.

Main Methods:

• Rats were made obese using monosodium glutamate (MSG) injections during early life.
• Obese and control rats received either standard water or water supplemented with 2.5% L-taurine (Tau) from 21 to 150 days of age.
• Vascular reactivity, lipid profiles, glucose tolerance, and aortic tissue characteristics were analyzed.

Main Results:

• MSG-obese rats exhibited obesity, hypertriglyceridemia, hyperinsulinemia, glucose intolerance, and elevated lipid peroxidation markers.
• Tau supplementation attenuated abdominal fat deposition, reduced triglyceride and malondialdehyde levels.
• Tau restored acetylcholine-induced vasodilation and aortic collagen content in MSG rats, while preserving aortic wall structure.

Conclusions:

• L-taurine (Tau) prevents vascular reactivity and extracellular matrix disruptions in the thoracic aortas of MSG-obese rats.
• The vascular protective effects of Tau are associated with reduced lipid peroxidation and key cardiovascular risk factors.
• Tau supplementation demonstrates potential as a therapeutic strategy for mitigating obesity-induced vascular damage.