» Articles » PMID: 20029449

Early Nonischemic Oxidative Metabolic Dysfunction Leads to Chronic Brain Atrophy in Traumatic Brain Injury

Overview
Authors
Affiliations
Soon will be listed here.
Abstract

Chronic brain atrophy after traumatic brain injury (TBI) is a well-known phenomenon, the causes of which are unknown. Early nonischemic reduction in oxidative metabolism is regionally associated with chronic brain atrophy after TBI. A total of 32 patients with moderate-to-severe TBI prospectively underwent positron emission tomography (PET) and volumetric magnetic resonance imaging (MRI) within the first week and at 6 months after injury. Regional lobar assessments comprised oxidative metabolism and glucose metabolism. Acute MRI showed a preponderance of hemorrhagic lesions with few irreversible ischemic lesions. Global and regional chronic brain atrophy occurred in all patients by 6 months, with the temporal and frontal lobes exhibiting the most atrophy compared with the occipital lobe. Global and regional reduction in cerebral metabolic rate of oxygen (CMRO(2)), cerebral blood flow (CBF), oxygen extraction fraction (OEF), and cerebral metabolic rate of glucose were observed. The extent of metabolic dysfunction was correlated with the total hemorrhage burden on initial MRI (r=0.62, P=0.01). The extent of regional brain atrophy correlated best with CMRO(2) and CBF. Lobar values of OEF were not in the ischemic range and did not correlate with chronic brain atrophy. Chronic brain atrophy is regionally specific and associated with regional reductions in oxidative brain metabolism in the absence of irreversible ischemia.

Citing Articles

ε4 allele status modulates the spatial patterns of progressive atrophy in the temporal lobes after mild traumatic brain injury.

Gan S, Sun Y, Liu K, Jia X, Li X, Zhang M Alzheimers Dement (Amst). 2024; 16(1):e12550.

PMID: 38371357 PMC: 10870335. DOI: 10.1002/dad2.12550.


Evolution of Severe Closed Head Injury: Assessing Ventricular Volume and Behavioral Measures at 30 and 90 Days Post-Injury.

Campana S, Cecchetti L, Venturi M, Buemi F, Foti C, Cerasa A J Clin Med. 2024; 13(3).

PMID: 38337568 PMC: 10856794. DOI: 10.3390/jcm13030874.


Cerebral Metabolic Crisis in Pediatric Cerebral Malaria.

OBrien N, Chetcuti K, Fonseca Y, Vidal L, Raghavan P, Postels D J Pediatr Intensive Care. 2023; 12(4):278-288.

PMID: 37970136 PMC: 10631841. DOI: 10.1055/s-0041-1732444.


Cerebral microdialysis and glucopenia in traumatic brain injury: A review.

Sharma H, McGinnis J, Kabotyanski K, Gopinath S, Goodman J, Robertson C Front Neurol. 2023; 14:1017290.

PMID: 36779054 PMC: 9911651. DOI: 10.3389/fneur.2023.1017290.


The focused quantitative EEG bio-marker in studying childhood atrophic encephalopathy.

Richard S, Gabriel S, John S, Emmanuel M, John-Mary V Sci Rep. 2022; 12(1):13437.

PMID: 35927445 PMC: 9352776. DOI: 10.1038/s41598-022-17062-w.


References
1.
Wu H, Huang S, Hattori N, Glenn T, Vespa P, Hovda D . Subcortical white matter metabolic changes remote from focal hemorrhagic lesions suggest diffuse injury after human traumatic brain injury. Neurosurgery. 2004; 55(6):1306-15. DOI: 10.1227/01.neu.0000143028.08719.42. View

2.
Okauchi M, Hua Y, Keep R, Morgenstern L, Xi G . Effects of deferoxamine on intracerebral hemorrhage-induced brain injury in aged rats. Stroke. 2009; 40(5):1858-63. PMC: 2674519. DOI: 10.1161/STROKEAHA.108.535765. View

3.
Verger K, Junque C, Levin H, Jurado M, Bartres-Faz D, Barrios M . Correlation of atrophy measures on MRI with neuropsychological sequelae in children and adolescents with traumatic brain injury. Brain Inj. 2001; 15(3):211-21. DOI: 10.1080/02699050010004059. View

4.
Feeney D, Baron J . Diaschisis. Stroke. 1986; 17(5):817-30. DOI: 10.1161/01.str.17.5.817. View

5.
Coles J, Cunningham A, Salvador R, Chatfield D, Carpenter A, Pickard J . Early metabolic characteristics of lesion and nonlesion tissue after head injury. J Cereb Blood Flow Metab. 2009; 29(5):965-75. DOI: 10.1038/jcbfm.2009.22. View