1. Interplay between spinal cord and cerebral cortex metabolism in amyotrophic lateral sclerosis
- Author
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Marini Cecilia 1, 2, Morbelli Silvia 2, 3, Cistaro Angelina 4, Campi Cristina 5, Caponnetto Claudia 6, 7, Bauckneht Matteo 3, Bellini Alessandro 3, Buschiazzo Ambra 3, Calamia Iolanda 3, Beltrametti Mauro C 8, Margotti, Simone 4, Fania Piercarlo 4, Poggi Ilaria 6, Cabona Corrado 6, Capitanio Selene 2, Piva Roberta 3, Calvo Andrea 9, Moglia Cristina 9, Canosa Antonio 9, Massone Anna Maria 11, Nobili Flavio 6, Mancardi Gianluigi 6, Chio Adriano 9, Piana Michele 8, and Sambuceti Gianmario 2
- Subjects
Adult ,Male ,Pathology ,medicine.medical_specialty ,upper motor neuron ,amyotrophic lateral sclerosis ,neurodegeneration biomarkers ,neuroinflammation ,neuromuscular disease imaging ,Neurology (clinical) ,Spinal disease ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,0302 clinical medicine ,Fluorodeoxyglucose F18 ,Cortex (anatomy) ,medicine ,Humans ,Amyotrophic lateral sclerosis ,Neuroinflammation ,Cerebral Cortex ,Upper motor neuron ,business.industry ,Amyotrophic Lateral Sclerosis ,Brain ,Neuromuscular Diseases ,Middle Aged ,Spinal cord ,medicine.disease ,Spine ,medicine.anatomical_structure ,Spinal Cord ,Cerebral cortex ,Positron-Emission Tomography ,Hypermetabolism ,Female ,business ,030217 neurology & neurosurgery ,Reports - Abstract
Using a computational approach to extract the spinal canal from whole-body PET/CT images, Marini et al. reveal increased glucose consumption in the spinal cord in prospectively recruited patients with amyotrophic lateral sclerosis. Simultaneous measurement of brain 18F-Fluorodeoxyglucose uptake reveals a divergent metabolic response in the two structures., We recently reported the potential of Hough transform in delineating spinal cord metabolism by 18F-fluorodeoxyglucose PET/CT scanning in amyotrophic lateral sclerosis. The present study aimed to verify the relationship between spinal cord and brain metabolism in 44 prospectively recruited patients affected by amyotrophic lateral sclerosis submitted to 18F-fluorodeoxyglucose brain and whole-body PET/CT. Patients were studied to highlight the presence of brain hypo- or hypermetabolism with respect to healthy controls, and multiple regression analysis was performed to evaluate the correlation between spinal cord and brain metabolism. Our results confirmed higher 18F-fluorodeoxyglucose uptake in both cervical and dorsal spinal cord in patients with amyotrophic lateral sclerosis with respect to controls. This finding was paralleled by the opposite pattern in the brain cortex that showed a generalized reduction in tracer uptake. This hypometabolism was particularly evident in wide regions of the frontal-dorsolateral cortex while it did not involve the midbrain. Bulbar and spinal disease onset was associated with similar degree of metabolic activation in the spinal cord. However, among spinal onset patients, upper limb presentation was associated with a more pronounced metabolic activation of cervical segment. Obtained data suggest a differential neuro-pathological state or temporal sequence in disease progression.
- Published
- 2018
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