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Comparing Amyloid-β Deposition, Neuroinflammation, Glucose Metabolism, and Mitochondrial Complex I Activity in Brain: a PET Study in Aged Monkeys

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Date 2014 Jun 13
PMID 24919653
Citations 23
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Abstract

Purpose: The aim of the present study was to compare amyloid-β (Aβ) deposition, translocator protein (TSPO) activity, regional cerebral metabolic rate of glucose (rCMRglc), and mitochondrial complex I (MC-I) activity in the brain of aged monkeys.

Methods: PET scans with (11)C-PIB (Aβ), (18)F-BCPP-EF (MC-I), (11)C-DPA-713 (TSPO), and (18)F-FDG (rCMRglc) were performed in aged monkeys (Macaca mulatta) in the conscious state and under isoflurane anaesthesia. (11)C-PIB binding to Aβ and (11)C-DPA-713 binding to TSPO were evaluated in terms of standard uptake values (SUV). The total volume of distribution (V T) of (18)F-BCPP-EF and rCMRglc with (18)F-FDG were calculated using arterial blood sampling.

Results: Isoflurane did not affect MC-I activity measured in terms of (18)F-BCPP-EF uptake in living brain. There was a significant negative correlation between (18)F-BCPP-EF binding (V T) and (11)C-PIB uptake (SUVR), and there was a significant positive correlation between (11)C-DPA-713 uptake (SUV) and (11)C-PIB uptake. In contrast, there was no significant correlation between rCMRglc ratio and (11)C-PIB uptake.

Conclusion: (18)F-BCPP-EF could be a potential PET probe for quantitative imaging of impaired MC-I activity that is correlated with Aβ deposition in the living brain.

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References
1.
Lenaz G, Cavazzoni M, Genova M, DAurelio M, Merlo Pich M, Pallotti F . Oxidative stress, antioxidant defences and aging. Biofactors. 1999; 8(3-4):195-204. DOI: 10.1002/biof.5520080305. View

2.
Nicholls D, Budd S . Mitochondria and neuronal survival. Physiol Rev. 2000; 80(1):315-60. DOI: 10.1152/physrev.2000.80.1.315. View

3.
Robinson B . Human complex I deficiency: clinical spectrum and involvement of oxygen free radicals in the pathogenicity of the defect. Biochim Biophys Acta. 1998; 1364(2):271-86. DOI: 10.1016/s0005-2728(98)00033-4. View

4.
Sokoloff L, Reivich M, Kennedy C, Des Rosiers M, PATLAK C, Pettigrew K . The [14C]deoxyglucose method for the measurement of local cerebral glucose utilization: theory, procedure, and normal values in the conscious and anesthetized albino rat. J Neurochem. 1977; 28(5):897-916. DOI: 10.1111/j.1471-4159.1977.tb10649.x. View

5.
Reivich M, Alavi A, Wolf A, Fowler J, Russell J, Arnett C . Glucose metabolic rate kinetic model parameter determination in humans: the lumped constants and rate constants for [18F]fluorodeoxyglucose and [11C]deoxyglucose. J Cereb Blood Flow Metab. 1985; 5(2):179-92. DOI: 10.1038/jcbfm.1985.24. View