Are Sirtuins 1 and 2 Relevant Players in Relapsing-Remitting Multiple Sclerosis?

Area of Science:

• Neuroscience
• Biochemistry
• Immunology

Background:

• Sirtuins (SIRTs) are crucial in central nervous system processes, including inflammation, degeneration, and metabolism.
• These functions suggest SIRTs' potential as biomarkers or therapeutic targets in complex diseases like multiple sclerosis (MS).

Purpose of the Study:

• To investigate serum levels of Sirtuin 1 (SIRT1) and Sirtuin 2 (SIRT2) in patients with relapsing-remitting multiple sclerosis (RRMS).
• To explore the relationship between SIRT1 and SIRT2 levels and various MS-related clinical aspects, including disability.

Main Methods:

• Serum samples from 115 RRMS patients and 39 healthy controls were analyzed using enzyme-linked immunoassay (ELISA).
• SIRT1 and SIRT2 levels were measured and correlated with demographic data, clinical variables, fatigue, sleep, cognition, autonomic function, and depression in RRMS patients.

Main Results:

• RRMS patients exhibited significantly lower serum levels of both SIRT1 and SIRT2 compared to healthy controls.
• SIRT levels were higher in male RRMS patients than in female patients and correlated negatively with the degree of neurological disability.
• No significant associations were found between SIRT levels and other analyzed clinical or demographic factors.

Conclusions:

• Serum SIRT1 and SIRT2 levels are reduced in RRMS patients, especially in females, and are linked to neurological deficit severity.
• Further research is needed to establish the role of SIRTs as potential biomarkers for MS disease activity or as mediators of "invisible disability".