To explore how biological sex influences inflammation and functional recovery after spinal cord injury (SCI), emphasizing the significance of these differences.
Key Findings:
Males exhibit higher frequencies of circulating myeloid cells acutely after SCI, while females show higher numbers in the spinal cord, suggesting delayed myeloid infiltration in males.
Females initiate an early attempt to direct infiltrative monocytes towards a tissue repair phenotype, indicating a proactive immune response.
Sex differences in blood CD54 expression at 4 weeks post-injury suggest ongoing sex-specific immune responses that may influence recovery.
Males show delayed post-operative recovery, but long-term functional recovery is comparable between sexes, highlighting the complexity of recovery dynamics.
Interpretation:
Biological sex significantly influences immune and neuroinflammatory responses after SCI, with limited impact on long-term recovery outcomes, suggesting a need for tailored therapeutic approaches.
Limitations:
The study primarily used a mouse model, which may not fully replicate human SCI responses, potentially limiting the applicability of findings.
The focus on immune responses may overlook other critical factors influencing recovery, such as psychological or environmental variables.
Conclusion:
The findings highlight the necessity of including both sexes in preclinical studies to better understand SCI and inform personalized therapeutic strategies, reinforcing the importance of sex-inclusive research.
by Sara Rito-Fernandes, Andreia Monteiro, Maria M. Moura, Juliana Fiúza-Fernandes, Sara M. Pinto, Marta F. Lima, João L. Afonso, Inês Pereira, Bárbara Carneiro-Pereira, Luís S. Fernandes, Filipa Ferreira-Antunes, Ana T. Palha, André Vidinha-Mira, António J. Salgado, Nuno A. Silva, Susana Monteiro
Over two days, specialists across neurology, neurosurgery and related subspecialties came together to discuss advances in stroke care, epilepsy, movement disorders, neurodegenerative disease, neuro-oncology, brain and spine surgery, interventional pain management and emerging technologies.
Aviva Abosch, M.D., Ph.D., a neurosurgeon at Baptist Health Miami Neuroscience Institute, part of Baptist Health Brain and Spine Care, was installed as the Esernia Endowed Chair in Surgical Treatment of Adult Epilepsy and Movement Disorders.
