Oxidative Stress Status in Post Stroke Patients: Sex Differences

Area of Science:

• Neuroscience
• Biochemistry
• Clinical Medicine

Background:

• Cerebral stroke leads to increased Reactive Oxygen Species (ROS), overwhelming antioxidant defenses and causing tissue damage.
• Oxidative stress status in stroke patients during rehabilitation is not well-understood.
• This study investigates oxidative stress markers in subacute stroke patients undergoing rehabilitation.

Purpose of the Study:

• To assess oxidative stress status (d-ROMs, BAP test, OSI index) in subacute stroke patients.
• To analyze glucose levels, lipid profiles, and their relationship with oxidative stress.
• To explore correlations between oxidative stress biomarkers and motor deficits, disability, and pain.

Main Methods:

• Serum analysis of hydroperoxides (d-ROMs), antioxidant activity (BAP test), and oxidative stress index (OSI).
• Measurement of glucose levels and lipid profiles.
• Correlation analysis between oxidative stress markers and clinical outcomes (motor deficits, disability, pain).

Main Results:

• Nearly all patients presented high d-ROMs levels, indicating significant oxidative stress.
• Females showed lower antioxidant capacity (BAP) and OSI index compared to males.
• In males, higher oxidative stress correlated with poorer motor performance and increased disability.

Conclusions:

• Subacute stroke patients exhibit substantial oxidative stress, with notable sex-based differences in antioxidant capacity.
• Oxidative stress appears to negatively impact motor function and disability in male stroke patients.
• Further research is warranted to elucidate persistent sex differences in oxidative stress post-stroke rehabilitation.