Skip to main content
Top
Published in: The Cerebellum 4/2012

01-12-2012 | Original Paper

Cognitive Deficits in Machado–Joseph Disease Correlate with Hypoperfusion of Visual System Areas

Authors: Pedro Braga-Neto, Lívia Almeida Dutra, José Luiz Pedroso, André C. Felício, Helena Alessi, Ruth F. Santos-Galduroz, Paulo Henrique F. Bertolucci, Mário Luiz V. Castiglioni, Rodrigo Affonseca Bressan, Griselda Esther Jara de Garrido, Orlando Graziani Povoas Barsottini, Andrea Jackowski

Published in: The Cerebellum | Issue 4/2012

Login to get access

Abstract

Cognitive and olfactory impairments have previously been demonstrated in patients with spinocerebellar ataxia type 3 (SCA3), also known as Machado–Joseph disease (MJD)—SCA3/MJD. We investigated changes in regional cerebral blood flow (rCBF) using single-photon emission computed tomography (SPECT) imaging in a cohort of Brazilian patients with SCA3/MJD. The aim of the present study was to evaluate the correlation among rCBF, cognitive deficits, and olfactory dysfunction in SCA3/MJD. Twenty-nine genetically confirmed SCA3/MJD patients and 25 control subjects were enrolled in the study. The severity of cerebellar symptoms was measured using the International Cooperative Ataxia Rating Scale and the Scale for the Assessment and Rating of Ataxia. Psychiatric symptoms were evaluated by the Hamilton Anxiety Scale and Beck Depression Inventory. The neuropsychological assessment consisted of Spatial Span, Symbol Search, Picture Completion, the Stroop Color Word Test, Trail Making Test (TMT), and Phonemic Verbal Fluency. Subjects were also submitted to odor identification evaluation using the 16-item Sniffin’ Sticks. SPECT was performed using ethyl cysteine dimer labeled with technetium-99m. SCA3/MJD patients showed reduced brain perfusion in the cerebellum, temporal, limbic, and occipital lobes compared to control subjects (pFDR <0.001). A significant positive correlation was found between the Picture Completion test and perfusion of the left parahippocampal gyrus and basal ganglia in the patient group as well as a negative correlation between the TMT part A and bilateral thalamus perfusion. The visuospatial system is affected in patients with SCA3/MJD and may be responsible for the cognitive deficits seen in this disease.
Literature
1.
go back to reference Leiner HC, Leiner AL, Dow RS. Does the cerebellum contribute to mental skills? Behav Neurosci. 1986;100:443–54.PubMedCrossRef Leiner HC, Leiner AL, Dow RS. Does the cerebellum contribute to mental skills? Behav Neurosci. 1986;100:443–54.PubMedCrossRef
2.
go back to reference Schmahmann JD. An emerging concept. The cerebellar contribution to higher function. Arch Neurol. 1991;48:1178–87.PubMedCrossRef Schmahmann JD. An emerging concept. The cerebellar contribution to higher function. Arch Neurol. 1991;48:1178–87.PubMedCrossRef
3.
4.
go back to reference Stoodley CJ, Schmahmann JD. Functional topography in the human cerebellum: a meta-analysis of neuroimaging studies. NeuroImage. 2009;44:489–501.PubMedCrossRef Stoodley CJ, Schmahmann JD. Functional topography in the human cerebellum: a meta-analysis of neuroimaging studies. NeuroImage. 2009;44:489–501.PubMedCrossRef
5.
go back to reference Stoodley CJ, Schmahmann JD. Evidence for topographic organization in the cerebellum of motor control versus cognitive and affective processing. Cortex. 2010;46:831–44.PubMedCrossRef Stoodley CJ, Schmahmann JD. Evidence for topographic organization in the cerebellum of motor control versus cognitive and affective processing. Cortex. 2010;46:831–44.PubMedCrossRef
6.
go back to reference Schöls L, Bauer P, Schmidt T, Schulte T, Riess O. Autosomal dominant cerebellar ataxias: clinical features, genetics, and pathogenesis. Lancet Neurol. 2004;3:291–304.PubMedCrossRef Schöls L, Bauer P, Schmidt T, Schulte T, Riess O. Autosomal dominant cerebellar ataxias: clinical features, genetics, and pathogenesis. Lancet Neurol. 2004;3:291–304.PubMedCrossRef
7.
go back to reference Lima L, Coutinho P. Clinical criteria for diagnosis of Machado-Joseph disease: report of a non-Azorean Portuguese family. Neurology. 1980;30:319–22.PubMedCrossRef Lima L, Coutinho P. Clinical criteria for diagnosis of Machado-Joseph disease: report of a non-Azorean Portuguese family. Neurology. 1980;30:319–22.PubMedCrossRef
8.
go back to reference Jardim LB, Pereira ML, Silveira I, Ferro A, Sequeiros J, Giugliani R. Neurologic findings in Machado-Joseph disease: relation with disease duration, subtypes, and (CAG)n. Arch Neurol. 2001;58:899–904.PubMedCrossRef Jardim LB, Pereira ML, Silveira I, Ferro A, Sequeiros J, Giugliani R. Neurologic findings in Machado-Joseph disease: relation with disease duration, subtypes, and (CAG)n. Arch Neurol. 2001;58:899–904.PubMedCrossRef
9.
go back to reference Braga-Neto P, Felicio AC, Pedroso JL, Dutra LA, Bertolucci PHF, Gabbai AA, et al. Clinical correlates of olfactory dysfunction in spinocerebellar ataxia type 3. Parkinsonism Relat Disord. 2011;17:353–6.PubMedCrossRef Braga-Neto P, Felicio AC, Pedroso JL, Dutra LA, Bertolucci PHF, Gabbai AA, et al. Clinical correlates of olfactory dysfunction in spinocerebellar ataxia type 3. Parkinsonism Relat Disord. 2011;17:353–6.PubMedCrossRef
10.
go back to reference Pedroso JL, Braga-Neto P, Felício AC, Dutra LA, Santos WAC, Do Prado GF, et al. Sleep disorders in Machado–Joseph disease: frequency, discriminative thresholds, predictive values and correlation with ataxia-related motor and non-motor features. Cerebellum. 2011;10:291–5.PubMedCrossRef Pedroso JL, Braga-Neto P, Felício AC, Dutra LA, Santos WAC, Do Prado GF, et al. Sleep disorders in Machado–Joseph disease: frequency, discriminative thresholds, predictive values and correlation with ataxia-related motor and non-motor features. Cerebellum. 2011;10:291–5.PubMedCrossRef
11.
go back to reference Radvany J, Camargo CHP, Costa ZM, Fonseca NC, Nascimento ED. Machado Joseph disease of Azorean ancestry in Brazil: the Catarina kindred. Neurological, neuroimaging, psychiatric and neuropsychological findings in the largest known family, the Catarina kindred. Arq Neuropsiquiatr. 1993;51:21–30.PubMedCrossRef Radvany J, Camargo CHP, Costa ZM, Fonseca NC, Nascimento ED. Machado Joseph disease of Azorean ancestry in Brazil: the Catarina kindred. Neurological, neuroimaging, psychiatric and neuropsychological findings in the largest known family, the Catarina kindred. Arq Neuropsiquiatr. 1993;51:21–30.PubMedCrossRef
12.
go back to reference Bürk K, Globas C, Bösch S, Klockgether T, Zühlke C, Daum I, et al. Cognitive deficits in spinocerebellar ataxia type 1, 2, and 3. J Neurol. 2003;250:207–11.PubMedCrossRef Bürk K, Globas C, Bösch S, Klockgether T, Zühlke C, Daum I, et al. Cognitive deficits in spinocerebellar ataxia type 1, 2, and 3. J Neurol. 2003;250:207–11.PubMedCrossRef
13.
go back to reference Klinke I, Minnerop M, Schmitz-Hübsch T, Hendriks M, Klockgether T, Wüllner U, et al. Neuropsychological features of patients with spinocerebellar ataxia (SCA) types 1, 2, 3, and 6. Cerebellum. 2010;9:433–42.PubMedCrossRef Klinke I, Minnerop M, Schmitz-Hübsch T, Hendriks M, Klockgether T, Wüllner U, et al. Neuropsychological features of patients with spinocerebellar ataxia (SCA) types 1, 2, 3, and 6. Cerebellum. 2010;9:433–42.PubMedCrossRef
14.
go back to reference Zawacki TM, Grace J, Friedman JH, Sudarsky L. Executive and emotional dysfunction in Machado-Joseph disease. Mov Disord. 2002;17:1004–10.PubMedCrossRef Zawacki TM, Grace J, Friedman JH, Sudarsky L. Executive and emotional dysfunction in Machado-Joseph disease. Mov Disord. 2002;17:1004–10.PubMedCrossRef
15.
go back to reference Maruff P, Tyler P, Burt T, Currie B, Burns C, Currie J. Cognitive deficits in Machado-Joseph disease. Ann Neurol. 1996;40:421–7.PubMedCrossRef Maruff P, Tyler P, Burt T, Currie B, Burns C, Currie J. Cognitive deficits in Machado-Joseph disease. Ann Neurol. 1996;40:421–7.PubMedCrossRef
16.
go back to reference Kawai Y, Takeda A, Abe Y, Washimi Y, Tanaka F, Sobue G. Cognitive impairments in Machado-Joseph disease. Arch Neurol. 2004;61:1757–60.PubMedCrossRef Kawai Y, Takeda A, Abe Y, Washimi Y, Tanaka F, Sobue G. Cognitive impairments in Machado-Joseph disease. Arch Neurol. 2004;61:1757–60.PubMedCrossRef
17.
go back to reference Braga-Neto P, Pedroso JL, Alessi H, Dutra LA, Felício AC, Minett T, et al. (2012) Cerebellar cognitive affective syndrome in Machado Joseph disease: core clinical features. Cerebellum. doi:10.1007/s12311-011-0318-6 Braga-Neto P, Pedroso JL, Alessi H, Dutra LA, Felício AC, Minett T, et al. (2012) Cerebellar cognitive affective syndrome in Machado Joseph disease: core clinical features. Cerebellum. doi:10.​1007/​s12311-011-0318-6
18.
go back to reference Manto M, Lorivel T. Cognitive repercussions of hereditary cerebellar disorders. Cortex. 2011;47:81–10.PubMedCrossRef Manto M, Lorivel T. Cognitive repercussions of hereditary cerebellar disorders. Cortex. 2011;47:81–10.PubMedCrossRef
19.
go back to reference Abele M, Riet A, Hummel T, Klockgether T, Wüllner U. Olfactory dysfunction in cerebellar ataxia and multiple system atrophy. J Neurol. 2003;250:1453–5.PubMedCrossRef Abele M, Riet A, Hummel T, Klockgether T, Wüllner U. Olfactory dysfunction in cerebellar ataxia and multiple system atrophy. J Neurol. 2003;250:1453–5.PubMedCrossRef
20.
go back to reference Connelly T, Farmer JM, Lynch DR, Doty RL. Olfactory dysfunction in degenerative ataxias. J Neurol Neurosurg Psychiatr. 2003;74:1435–7.PubMedCrossRef Connelly T, Farmer JM, Lynch DR, Doty RL. Olfactory dysfunction in degenerative ataxias. J Neurol Neurosurg Psychiatr. 2003;74:1435–7.PubMedCrossRef
21.
go back to reference Velázquez-Pérez L, Fernandez-Ruiz J, Díaz R, González RP, Ochoa NC, Cruz GS, et al. Spinocerebellar ataxia type 2 olfactory impairment shows a pattern similar to other major neurodegenerative diseases. J Neurol. 2006;253:1165–9.PubMedCrossRef Velázquez-Pérez L, Fernandez-Ruiz J, Díaz R, González RP, Ochoa NC, Cruz GS, et al. Spinocerebellar ataxia type 2 olfactory impairment shows a pattern similar to other major neurodegenerative diseases. J Neurol. 2006;253:1165–9.PubMedCrossRef
23.
go back to reference Takahashi N, Odano I, Nishihara M, Yuasa T, Sakai K. Regional cerebral blood flow measured with N-isopropyl-p-[123I]iodoamphetamine single-photon emission tomography in patients with Joseph disease. Eur J Nucl Med. 1994;21:615–20.PubMedCrossRef Takahashi N, Odano I, Nishihara M, Yuasa T, Sakai K. Regional cerebral blood flow measured with N-isopropyl-p-[123I]iodoamphetamine single-photon emission tomography in patients with Joseph disease. Eur J Nucl Med. 1994;21:615–20.PubMedCrossRef
24.
go back to reference Etchebehere EC, Cendes F, Lopes-Cendes I, Pereira JA, Lima MC, Sansana CR, et al. Brain single-photon emission computed tomography and magnetic resonance imaging in Machado-Joseph disease. Arch Neurol. 2001;58:1257–63.PubMedCrossRef Etchebehere EC, Cendes F, Lopes-Cendes I, Pereira JA, Lima MC, Sansana CR, et al. Brain single-photon emission computed tomography and magnetic resonance imaging in Machado-Joseph disease. Arch Neurol. 2001;58:1257–63.PubMedCrossRef
25.
go back to reference Trouillas P, Takayanagi T, Hallett M, Currier RD, Subramony SH, Wessel K, et al. International Cooperative Ataxia Rating Scale for pharmacological assessment of the cerebellar syndrome: the Ataxia Neuropharmacology Committee of the World Federation of Neurology. J Neurol Sci. 1997;145:205–11.PubMedCrossRef Trouillas P, Takayanagi T, Hallett M, Currier RD, Subramony SH, Wessel K, et al. International Cooperative Ataxia Rating Scale for pharmacological assessment of the cerebellar syndrome: the Ataxia Neuropharmacology Committee of the World Federation of Neurology. J Neurol Sci. 1997;145:205–11.PubMedCrossRef
26.
go back to reference Schmitz-Hübsch T, du Montcel ST, Baliko L, Berciano J, Boesch S, Depondt C, et al. Scale for the assessment and rating of ataxia: development of a new clinical scale. Neurology. 2006;66:1717–20.PubMedCrossRef Schmitz-Hübsch T, du Montcel ST, Baliko L, Berciano J, Boesch S, Depondt C, et al. Scale for the assessment and rating of ataxia: development of a new clinical scale. Neurology. 2006;66:1717–20.PubMedCrossRef
27.
go back to reference Braga-Neto P, Godeiro-Junior C, Dutra LA, Pedroso JL, Barsottini OG. Translation and validation into Brazilian version of the Scale of the Assessment and Rating of Ataxia (SARA). Arq Neuropsiquiatr. 2010;68:228–30.PubMedCrossRef Braga-Neto P, Godeiro-Junior C, Dutra LA, Pedroso JL, Barsottini OG. Translation and validation into Brazilian version of the Scale of the Assessment and Rating of Ataxia (SARA). Arq Neuropsiquiatr. 2010;68:228–30.PubMedCrossRef
28.
go back to reference Wechsler D. Wechsler memory scale–revised manual. San Antonio: Psychological Corporation; 1987. Wechsler D. Wechsler memory scale–revised manual. San Antonio: Psychological Corporation; 1987.
29.
go back to reference Wechsler D. Wechsler adult intelligence scale, 3rd edition (WAIS III): test manual. 3rd ed. New York: The Psychological Corporation; 1997. Wechsler D. Wechsler adult intelligence scale, 3rd edition (WAIS III): test manual. 3rd ed. New York: The Psychological Corporation; 1997.
30.
go back to reference Weschsler D. WAIS-III: Escala de inteligência para adultos: Manual para administração e avaliação. 1st ed. São Paulo: Casa do Psicólogo; 2004. Weschsler D. WAIS-III: Escala de inteligência para adultos: Manual para administração e avaliação. 1st ed. São Paulo: Casa do Psicólogo; 2004.
31.
go back to reference Spreen O, Strauss E. A compendium of neuropsychological tests. 2nd ed. New York: Oxford University Press; 1998. Spreen O, Strauss E. A compendium of neuropsychological tests. 2nd ed. New York: Oxford University Press; 1998.
32.
go back to reference Reitan R. Validity of the trail making test as an indicator of organic brain damage. Percept Motor Skill. 1958;8:271–6. Reitan R. Validity of the trail making test as an indicator of organic brain damage. Percept Motor Skill. 1958;8:271–6.
33.
go back to reference Lezak MD. Neuropsychological assessment. New York: Oxford University Press; 2004. Lezak MD. Neuropsychological assessment. New York: Oxford University Press; 2004.
34.
go back to reference Silveira-Moriyama L, Carvalho Mde J, Katzenschlager R, Petrie A, Ranvaud R, Barbosa ER, et al. The use of smell identification tests in diagnosis of Parkinson’s disease in Brazil. Mov Disord. 2008;23:2328–34.PubMedCrossRef Silveira-Moriyama L, Carvalho Mde J, Katzenschlager R, Petrie A, Ranvaud R, Barbosa ER, et al. The use of smell identification tests in diagnosis of Parkinson’s disease in Brazil. Mov Disord. 2008;23:2328–34.PubMedCrossRef
35.
go back to reference Ashburner J, Friston KJ. Unified segmentation. Neuroimage. 2005;26:839–51. Ashburner J, Friston KJ. Unified segmentation. Neuroimage. 2005;26:839–51.
36.
go back to reference Rüb U, Brunt ER, Deller T. New insights into the pathoanatomy of spinocerebellar ataxia type 3 (Machado Joseph disease). Curr Opin Neurol. 2008;21:111–6.PubMedCrossRef Rüb U, Brunt ER, Deller T. New insights into the pathoanatomy of spinocerebellar ataxia type 3 (Machado Joseph disease). Curr Opin Neurol. 2008;21:111–6.PubMedCrossRef
37.
go back to reference Paulson HL, Das SS, Crino PB, Perez MK, Patel SC, Gotsdiner D, et al. Machado-Joseph disease gene product is a cytoplasmic protein widely expressed in brain. Ann Neurol. 1997;41:453–62.PubMedCrossRef Paulson HL, Das SS, Crino PB, Perez MK, Patel SC, Gotsdiner D, et al. Machado-Joseph disease gene product is a cytoplasmic protein widely expressed in brain. Ann Neurol. 1997;41:453–62.PubMedCrossRef
38.
go back to reference Yamada M, Hayashi S, Tsuji S, Takahashi H. Involvement of the cerebral cortex and autonomic ganglia in Machado-Joseph disease. Acta Neuropathol. 2001;101:140–4.PubMed Yamada M, Hayashi S, Tsuji S, Takahashi H. Involvement of the cerebral cortex and autonomic ganglia in Machado-Joseph disease. Acta Neuropathol. 2001;101:140–4.PubMed
40.
go back to reference Leh SE, Petrides M, Strafella AP. The neural circuitry of executive functions in healthy subjects and Parkinson's disease. Neuropsychopharmacology. 2010;35:70–85.PubMedCrossRef Leh SE, Petrides M, Strafella AP. The neural circuitry of executive functions in healthy subjects and Parkinson's disease. Neuropsychopharmacology. 2010;35:70–85.PubMedCrossRef
41.
go back to reference Kravitz DJ, Saleem KS, Baker CI, Mishkin M. A new neural framework for visuospatial processing. Nat Rev Neurosci. 2011;12:217–30.PubMedCrossRef Kravitz DJ, Saleem KS, Baker CI, Mishkin M. A new neural framework for visuospatial processing. Nat Rev Neurosci. 2011;12:217–30.PubMedCrossRef
42.
43.
go back to reference Doeller CF, Kaplan R. Parahippocampal cortex: translating vision into space. Curr Biol. 2011;21(15):R589–91.PubMedCrossRef Doeller CF, Kaplan R. Parahippocampal cortex: translating vision into space. Curr Biol. 2011;21(15):R589–91.PubMedCrossRef
44.
go back to reference Macevoy SP, Epstein RA. Constructing scenes from objects in human occipitotemporal cortex. Nat Neurosci. 2011;14:1323–9.PubMedCrossRef Macevoy SP, Epstein RA. Constructing scenes from objects in human occipitotemporal cortex. Nat Neurosci. 2011;14:1323–9.PubMedCrossRef
45.
go back to reference Schmahmann JD, Pandya DN. Disconnection syndromes of basal ganglia, thalamus and cerebrocerebellar systems. Cortex. 2008;44:1037–66.PubMedCrossRef Schmahmann JD, Pandya DN. Disconnection syndromes of basal ganglia, thalamus and cerebrocerebellar systems. Cortex. 2008;44:1037–66.PubMedCrossRef
46.
go back to reference Middleton FA, Strick PL. Basal ganglia output and cognition: evidence from anatomical, behavioral, and clinical studies. Brain Cogn. 2000;42:183–200.PubMedCrossRef Middleton FA, Strick PL. Basal ganglia output and cognition: evidence from anatomical, behavioral, and clinical studies. Brain Cogn. 2000;42:183–200.PubMedCrossRef
47.
go back to reference Bostan AC, Strick PL. The cerebellum and basal ganglia are interconnected. Neuropsychol Rev. 2010;20:261–70.PubMedCrossRef Bostan AC, Strick PL. The cerebellum and basal ganglia are interconnected. Neuropsychol Rev. 2010;20:261–70.PubMedCrossRef
48.
go back to reference Rüb U, de Vos RA, Brunt ER, Sebestény T, Schöls L, Auburger G, et al. Spinocerebellar ataxia type 3 (SCA3): thalamic neurodegeneration occurs independently from thalamic ataxin-3 immunopositive neuronal intranuclear inclusions. Brain Pathol. 2006;16:218–27.PubMedCrossRef Rüb U, de Vos RA, Brunt ER, Sebestény T, Schöls L, Auburger G, et al. Spinocerebellar ataxia type 3 (SCA3): thalamic neurodegeneration occurs independently from thalamic ataxin-3 immunopositive neuronal intranuclear inclusions. Brain Pathol. 2006;16:218–27.PubMedCrossRef
49.
go back to reference De Oliveira MS, D'Abreu A, França Jr MC, Lopes-Cendes I, Cendes F, Castellano G. MRI-Texture analysis of corpus callosum, thalamus, putamen, and caudate in Machado-Joseph disease. J Neuroimaging. 2012. doi:10.1111/j.1552-6569.2010.00553.x De Oliveira MS, D'Abreu A, França Jr MC, Lopes-Cendes I, Cendes F, Castellano G. MRI-Texture analysis of corpus callosum, thalamus, putamen, and caudate in Machado-Joseph disease. J Neuroimaging. 2012. doi:10.​1111/​j.​1552-6569.​2010.​00553.​x
50.
go back to reference Crowe SF. The differential contribution of mental tracking, cognitive flexibility, visual search, and motor speed to performance on parts A and B of the Trail Making Test. J Clin Psychol. 1998;54:585–91.PubMedCrossRef Crowe SF. The differential contribution of mental tracking, cognitive flexibility, visual search, and motor speed to performance on parts A and B of the Trail Making Test. J Clin Psychol. 1998;54:585–91.PubMedCrossRef
51.
go back to reference Tanaka M, Kunimatsu J. Contribution of the central thalamus to the generation of volitional saccades. Eur J Neurosci. 2011;33:2046–57.PubMedCrossRef Tanaka M, Kunimatsu J. Contribution of the central thalamus to the generation of volitional saccades. Eur J Neurosci. 2011;33:2046–57.PubMedCrossRef
52.
go back to reference Saalmann YB, Kastner S. Cognitive and perceptual functions of the visual thalamus. Neuron. 2011;28(71):209–23.CrossRef Saalmann YB, Kastner S. Cognitive and perceptual functions of the visual thalamus. Neuron. 2011;28(71):209–23.CrossRef
53.
go back to reference Molinari M, Leggio MG. Cerebellar information processing and visuospatial functions. Cerebellum. 2007;6:214–20.PubMedCrossRef Molinari M, Leggio MG. Cerebellar information processing and visuospatial functions. Cerebellum. 2007;6:214–20.PubMedCrossRef
54.
go back to reference Meyer JS, Obara K, Muramatsu K. Diaschisis. Neurol Res. 1993;15:362–6.PubMed Meyer JS, Obara K, Muramatsu K. Diaschisis. Neurol Res. 1993;15:362–6.PubMed
55.
go back to reference Kim YT, Shin SM, Lee WY, Kim GM, Jin DK. Expression of expanded polyglutamine protein induces behavioral changes in Drosophila (polyglutamine-induced changes in Drosophila). Cell Mol Neurobiol. 2004;24:109–22.PubMedCrossRef Kim YT, Shin SM, Lee WY, Kim GM, Jin DK. Expression of expanded polyglutamine protein induces behavioral changes in Drosophila (polyglutamine-induced changes in Drosophila). Cell Mol Neurobiol. 2004;24:109–22.PubMedCrossRef
56.
go back to reference Goti D, Katzen SM, Mez J, Kurtis N, Kiluk J, Ben-Haïem L, et al. A mutant ataxin-3 putative-cleavage fragment in brains of Machado-Joseph disease patients and transgenic mice is cytotoxic above a critical concentration. J Neurosci. 2004;24:10266–79.PubMedCrossRef Goti D, Katzen SM, Mez J, Kurtis N, Kiluk J, Ben-Haïem L, et al. A mutant ataxin-3 putative-cleavage fragment in brains of Machado-Joseph disease patients and transgenic mice is cytotoxic above a critical concentration. J Neurosci. 2004;24:10266–79.PubMedCrossRef
57.
go back to reference Sobel N, Prabhakaran V, Hartley CA, Desmond JE, Zhao Z, Glover GH, et al. Odorant-induced and sniff-induced activation in the cerebellum of the human. J Neurosci. 1998;18(21):8990–9001.PubMed Sobel N, Prabhakaran V, Hartley CA, Desmond JE, Zhao Z, Glover GH, et al. Odorant-induced and sniff-induced activation in the cerebellum of the human. J Neurosci. 1998;18(21):8990–9001.PubMed
58.
go back to reference Qureshy A, Kawashima R, Imran MB, Sugiura M, Goto R, Okada K, Inoue K, et al. Functional mapping of human brain in olfactory processing: a PET study. J Neurophysiol. 2000;84:1656–66.PubMed Qureshy A, Kawashima R, Imran MB, Sugiura M, Goto R, Okada K, Inoue K, et al. Functional mapping of human brain in olfactory processing: a PET study. J Neurophysiol. 2000;84:1656–66.PubMed
Metadata
Title
Cognitive Deficits in Machado–Joseph Disease Correlate with Hypoperfusion of Visual System Areas
Authors
Pedro Braga-Neto
Lívia Almeida Dutra
José Luiz Pedroso
André C. Felício
Helena Alessi
Ruth F. Santos-Galduroz
Paulo Henrique F. Bertolucci
Mário Luiz V. Castiglioni
Rodrigo Affonseca Bressan
Griselda Esther Jara de Garrido
Orlando Graziani Povoas Barsottini
Andrea Jackowski
Publication date
01-12-2012
Publisher
Springer-Verlag
Published in
The Cerebellum / Issue 4/2012
Print ISSN: 1473-4222
Electronic ISSN: 1473-4230
DOI
https://doi.org/10.1007/s12311-012-0354-x

Other articles of this Issue 4/2012

The Cerebellum 4/2012 Go to the issue