Quercetin administration after spinal cord trauma changes S-100 levels

Area of Science:

• Neuroscience
• Biochemistry
• Pharmacology

Background:

• S-100beta protein levels in serum correlate with central nervous system (CNS) trauma severity.
• S-100beta in CNS tissue plays a role in neuroprotection and neuroregeneration.
• Previous studies demonstrated quercetin improves motor function in spinal cord injury models.

Purpose of the Study:

• To investigate the effect of quercetin administration on S-100beta levels in serum and CNS tissue following experimental spinal cord trauma.
• To assess the potential neuroprotective role of quercetin in spinal cord injury.

Main Methods:

• Adult male Wistar rats underwent mid-thoracic spinal cord compression injury.
• Animals received quercetin (25 micromol/kg) or saline (control).
• Serum and tissue S-100beta levels were measured at 6, 12, and 24 hours post-injury using a luminometric assay.

Main Results:

• Quercetin treatment ameliorated the increase in serum S-100beta levels post-trauma compared to controls, becoming significant at 24 hours.
• Tissue S-100beta levels decreased in saline controls but were initially decreased then increased at later time points in quercetin-treated rats.
• Tissue S-100beta levels were significantly higher in quercetin-treated animals than saline controls at all measured time points.

Conclusions:

• Quercetin administration alters S-100beta kinetics in experimental spinal cord trauma.
• The observed changes in S-100beta levels suggest quercetin administration post-trauma may mitigate CNS injury extent.