Glucose metabolism and serotonin receptors in the frontotemporal lobe degeneration

Massimo Franceschi, Davide Anchisi, Oriana Pelati, Marta Zuffi, Mario Matarrese, Rosa Maria Moresco, Ferruccio Fazio, Daniela Perani

Research output: Contribution to journalArticle

Abstract

In patients with the frontal variant of frontotemporal lobar degeneration (fv-FTLD), behavioral abnormalities may vary from apathy with motor slowness (apathetic form) to disinhibition with agitation (disinhibited form). These clinical presentations may be related to specific regional cerebral dysfunction and to deficit in the serotoninergic system. We studied cerebral glucose uptake using 18F-fluorodeoxyglucose and positron emission tomography in 18 patients fulfilling clinical criteria for fv-FTLD and showing, respectively, an apathetic or disinhibited behavioral syndrome. In eight of these patients, we also evaluated the 5-hydroxytryptamine-2A receptor cerebral receptor distribution with [ 11C]MDL and positron emission tomography. We found a reduction of frontal glucose metabolism in the whole group of fv-FTLD patients. Apathetic syndrome was associated with a prevalent dorsolateral and frontal medial hypometabolism, whereas the disinhibited syndrome demonstrated a selective hypometabolism in interconnected limbic structures (the cingulate cortex, hippocampus/amygdala, and accumbens nucleus). The in vivo measurements of [ 11C]MDL indicated a significant reduction of 5-hydroxytryptamine- 2A receptors in orbitofrontal, frontal medial, and cingulate cortices. These 18F-fluorodeoxyglucose positron emission tomography changes can be considered as specific functional markers of the different behavioral presentations in fv-FTLD. The serotoninergic system dysfunction provides a rationale for therapeutic trials with selective serotonin reuptake inhibitors.

Original languageEnglish
Pages (from-to)216-225
Number of pages10
JournalAnnals of Neurology
Volume57
Issue number2
DOIs
Publication statusPublished - Feb 2005

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Frontotemporal Lobar Degeneration
Serotonin Receptors
Positron-Emission Tomography
Gyrus Cinguli
Fluorodeoxyglucose F18
Glucose
Apathy
Nucleus Accumbens
Serotonin Uptake Inhibitors
Frontal Lobe
Amygdala
Hippocampus
glucose receptor

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Franceschi, M., Anchisi, D., Pelati, O., Zuffi, M., Matarrese, M., Moresco, R. M., ... Perani, D. (2005). Glucose metabolism and serotonin receptors in the frontotemporal lobe degeneration. Annals of Neurology, 57(2), 216-225. https://doi.org/10.1002/ana.20365

Glucose metabolism and serotonin receptors in the frontotemporal lobe degeneration. / Franceschi, Massimo; Anchisi, Davide; Pelati, Oriana; Zuffi, Marta; Matarrese, Mario; Moresco, Rosa Maria; Fazio, Ferruccio; Perani, Daniela.

In: Annals of Neurology, Vol. 57, No. 2, 02.2005, p. 216-225.

Research output: Contribution to journalArticle

Franceschi, M, Anchisi, D, Pelati, O, Zuffi, M, Matarrese, M, Moresco, RM, Fazio, F & Perani, D 2005, 'Glucose metabolism and serotonin receptors in the frontotemporal lobe degeneration', Annals of Neurology, vol. 57, no. 2, pp. 216-225. https://doi.org/10.1002/ana.20365
Franceschi M, Anchisi D, Pelati O, Zuffi M, Matarrese M, Moresco RM et al. Glucose metabolism and serotonin receptors in the frontotemporal lobe degeneration. Annals of Neurology. 2005 Feb;57(2):216-225. https://doi.org/10.1002/ana.20365
Franceschi, Massimo ; Anchisi, Davide ; Pelati, Oriana ; Zuffi, Marta ; Matarrese, Mario ; Moresco, Rosa Maria ; Fazio, Ferruccio ; Perani, Daniela. / Glucose metabolism and serotonin receptors in the frontotemporal lobe degeneration. In: Annals of Neurology. 2005 ; Vol. 57, No. 2. pp. 216-225.
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