The rate and extent of damage to the spinal cord and brain following spinal cord injury have long been a mystery. Now, a joint research effort by UCL, the University of Zurich and University Hospital Balgrist has found evidence that patients already have irreversible tissue loss in the spinal cord within 40 days of injury.
The study, published in the journal Lancet Neurology, used a new imaging measurement
technique, developed at the Wellcome Trust Centre for Neuroimaging (UCL). This
enables the impact of therapeutic treatments and rehabilitative interventions to
be determined more quickly and directly.
“This study is an excellent example of the value of combining the complementary expertise of the two universities,” says UCL's Dean of Brain Sciences, Professor Alan Thompson, who is one of the senior authors of the study. “It provides exciting new insights into the complications of spinal cord trauma and gives us the possibility of identifying both imaging biomarkers and therapeutic targets.”
The scientists studied 13 patients with acute spinal cord injuries every three months for a year using novel MRI (magnetic resonance imaging) protocols. They discovered that the diameter of the spinal cord had rapidly decreased and was already seven percent smaller after 12 months.
The extent of the degenerative changes coincided with the clinical outcome. “Patients with a greater tissue loss above the injury site recovered less effectively than those with less changes,” explains Patrick Freund, the investigator responsible for the study at the Paraplegic Center Balgrist.
Thanks to the use of the new neuroimaging protocols,
Freund says, we now have the possibility of displaying the effect of therapeutic
treatments on the central nervous system and of rehabilitative measures more
quickly. Consequently, the effect of new therapies can also be recorded more
rapidly.
The findings are the result of a new three-year neuroscience partnership between UCL and the Neuroscience Centre Zurich (ZNZ), representing both the University of Zurich and the Swiss Federal Institute of Technology (ETHZ).
Read more:
Patrick Freund,
Nikolaus Weiskopf, John Ashburner, Katharina Wolf, Reto Sutter, Daniel R
Altmann, Karl Friston, Alan Thompson, Armin Curt, ‘MRI investigation of the
sensorimotor cortex and corticospinal tract after acute spinal cord injury: a
prospective longitudinal study’, The
Lancet Neurology, July 2, 2013.
doi.org/10.1016/S1474-4422(13)70146-7
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