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Siravo E. Editorial for "Detection of Neuroinflammation Induced by Typhoid Vaccine Using Quantitative Magnetization Transfer MR: A Randomized Crossover Study". J Magn Reson Imaging 2024; 59:1695-1696. [PMID: 37539827 DOI: 10.1002/jmri.28936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 07/05/2023] [Indexed: 08/05/2023] Open
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Perrotta A, Chiacchiaretta P, Anastasio MG, Pavone L, Grillea G, Bartolo M, Siravo E, Colonnese C, De Icco R, Serrao M, Sandrini G, Pierelli F, Ferretti A. Temporal summation of the nociceptive withdrawal reflex involves deactivation of posterior cingulate cortex. Eur J Pain 2016; 21:289-301. [PMID: 27452295 DOI: 10.1002/ejp.923] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/19/2016] [Indexed: 02/02/2023]
Abstract
BACKGROUND Temporal summation of pain sensation is pivotal both in physiological and pathological nociception. In humans, it develops in parallel with temporal summation of the nociceptive withdrawal reflex (NWR) of the lower limb, an objective representation of the temporal processing of nociceptive signals into the spinal cord. METHODS To study the contribution of cortical and subcortical structures in temporal summation of pain reflex responses, we compared the fMRI signal changes related to the temporal summation threshold (TST) of the NWR with that related to the single NWR response. We studied 17 healthy subjects using a stimulation paradigm previously determined to evoke both the TST of the NWR (SUMM) and the NWR single response (SING). RESULTS We found a significant activation in left (contralateral) primary somatosensory cortex (SI), bilateral secondary somatosensory cortex (SII), bilateral insula, anterior cingulate cortex (ACC) and bilateral thalamus during both SUMM and SING conditions. The SUMM versus SING contrast revealed a significant deactivation in the posterior cingulate cortex (PCC) and bilateral middle occipital gyrus in SUMM when compared to SING condition. CONCLUSIONS Our data support the hypothesis that temporal summation of nociceptive reflex responses is driven through a switch between activation and deactivation of a specific set of brain areas linked to the default mode network. This behaviour could be explained in view of the relevance of the pain processing induced by temporal summation, recognized as a more significant potential damaging condition with respect to a single, isolated, painful stimulation of comparable pain intensity. SIGNIFICANCE The study demonstrated that TST of the NWR involves a selective deactivation of PCC.
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Affiliation(s)
- A Perrotta
- IRCCS Neuromed, Pozzilli (Isernia), Italy
| | - P Chiacchiaretta
- Department of Neuroscience, Imaging and Clinical Sciences, University "G. d'Annunzio" of Chieti, Italy.,Institute for Advanced Biomedical Technologies (ITAB), University "G. d'Annunzio" of Chieti, Italy
| | | | - L Pavone
- IRCCS Neuromed, Pozzilli (Isernia), Italy
| | - G Grillea
- IRCCS Neuromed, Pozzilli (Isernia), Italy.,Department of Neurology and Psychiatry, "Sapienza" University of Rome, Italy
| | - M Bartolo
- IRCCS Neuromed, Pozzilli (Isernia), Italy
| | - E Siravo
- IRCCS Neuromed, Pozzilli (Isernia), Italy
| | - C Colonnese
- IRCCS Neuromed, Pozzilli (Isernia), Italy.,Department of Neurology and Psychiatry, "Sapienza" University of Rome, Italy
| | - R De Icco
- C. Mondino National Neurological Institute, Department of Brain and Behavioral Sciences, University of Pavia, Italy
| | - M Serrao
- Unit of Neurorehabilitation, Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, ICOT, Latina, Italy
| | - G Sandrini
- C. Mondino National Neurological Institute, Department of Brain and Behavioral Sciences, University of Pavia, Italy
| | - F Pierelli
- IRCCS Neuromed, Pozzilli (Isernia), Italy.,Unit of Neurorehabilitation, Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, ICOT, Latina, Italy
| | - A Ferretti
- Department of Neuroscience, Imaging and Clinical Sciences, University "G. d'Annunzio" of Chieti, Italy.,Institute for Advanced Biomedical Technologies (ITAB), University "G. d'Annunzio" of Chieti, Italy
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Perrotta A, Anastasio MG, Pavone L, Ferretti A, Chiacchiaretta P, Grillea G, Bartolo M, Siravo E, Coppola G, Ambrosini A, De Icco R, Sandrini G, Pierelli F. O042. Phase-dependent defective functional activity of the default mode network and facilitated temporal processing of nociceptive stimuli in cluster headache. J Headache Pain 2015; 16:A90. [PMID: 28132298 PMCID: PMC4715194 DOI: 10.1186/1129-2377-16-s1-a90] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
| | - Maria Grazia Anastasio
- IRCCS INM Neuromed, Pozzilli, Italy.,Department of Medical and Surgical Sciences and Biotechnologies, "Sapienza" University of Rome Polo Pontino, Rome, Italy
| | | | - Antonio Ferretti
- Department of Neuroscience, Imaging and Clinical Sciences, University "G. d'Annunzio", Institute for Advanced Biomedical Technologies (ITAB), Chieti, Italy
| | - Piero Chiacchiaretta
- Department of Neuroscience, Imaging and Clinical Sciences, University "G. d'Annunzio", Institute for Advanced Biomedical Technologies (ITAB), Chieti, Italy
| | | | | | | | - Gianluca Coppola
- Department of Medical and Surgical Sciences and Biotechnologies, "Sapienza" University of Rome Polo Pontino, Rome, Italy
| | | | - Roberto De Icco
- IRCCS Neurological National Institute C. Mondino, Pavia, Italy
| | | | - Francesco Pierelli
- Department of Medical and Surgical Sciences and Biotechnologies, "Sapienza" University of Rome Polo Pontino, Rome, Italy
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Calabria F, Grillea G, Zinzi M, Barbarisi M, Siravo E, Bartolo M, Cantore G, Colonnese C, Grasso C, Schillaci O. Lhermitte-Duclos disease presenting with positron emission tomography-magnetic resonance fusion imaging: a case report. J Med Case Rep 2012; 6:76. [PMID: 22394619 PMCID: PMC3316141 DOI: 10.1186/1752-1947-6-76] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2011] [Accepted: 03/06/2012] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Lhermitte-Duclos disease or dysplastic gangliocytoma of the cerebellum is an extremely rare tumor. It is a slowly enlarging mass within the cerebellar cortex. The majority of cases are diagnosed in the third or fourth decade of life. CASE PRESENTATION We report the case of a 37-year-old Caucasian woman who underwent positron emission tomography-computed tomography with fluorine-18-fluorodeoxyglucose for evaluation of a solitary lung node. No pathological uptake was detected in the solitary lung node but the positron emission tomography-computed tomography of her brain showed intense tracer uptake, suggestive of a malignant neoplasm, in a mass in her left cerebellar lobe. Our patient had experienced two years of occipital headache and movement disorder. Subsequently, magnetic resonance imaging was performed with contrast agent administration, showing a large subtentorial mass in her left cerebellar hemisphere, with compression and dislocation of the fourth ventricle. Metabolic data provided by positron emission tomography and morphological magnetic resonance imaging views were fused in post-processing, allowing a diagnosis of dysplastic gangliocytoma with increased glucose metabolism. Total resection of the tumor was performed and histological examination confirmed the diagnosis of Lhermitte-Duclos disease. CONCLUSIONS Our case indicates that increased uptake of fluorine-18-fluorodeoxyglucose may be misinterpreted as a neoplastic process in the evaluation of patients with Lhermitte-Duclos disease, but supports the usefulness of integrated positron emission tomography-magnetic resonance imaging in the exact pathophysiologic explanation of this disease and in making the correct diagnosis. However, an accurate physical examination and exact knowledge of clinical data is of the utmost importance.
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