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Volumn 19, Issue 4, 1999, Pages 419-425

Dominantly inherited ataxias

Author keywords

And degenerative ataxias; CAG expansions; Dominant; Inherited; Polyglutamine diseases

Indexed keywords

GENE PRODUCT; POLYGLUTAMINE; TRINUCLEOTIDE;

EID: 0033401393     PISSN: 02718235     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2008-1040856     Document Type: Review
Times cited : (12)

References (48)
  • 1
    • 0000223839 scopus 로고
    • Sur L'heredo-ataxie cerebelleuse
    • Marie P. Sur L'heredo-ataxie cerebelleuse. Sem Med (Paris) 1893;13:444-447
    • (1893) Sem Med (Paris) , vol.13 , pp. 444-447
    • Marie, P.1
  • 2
    • 0010351573 scopus 로고
    • On hereditary ataxia and spastic paraplegia
    • Cambridge: Cambridge University Press
    • Bell J, Carmichael EA. On hereditary ataxia and spastic paraplegia. In: The Treasury of Human Inheritance, Vol. IV, Part III. Cambridge: Cambridge University Press, 1939:141-281
    • (1939) The Treasury of Human Inheritance , vol.4 , Issue.PART III , pp. 141-281
    • Bell, J.1    Carmichael, E.A.2
  • 3
    • 0000051759 scopus 로고
    • Hereditary ataxia: Clinical study through 6 generations
    • Schut JW. Hereditary ataxia: Clinical study through 6 generations. Arch Neurol Psychiatry 1950;63:535-568
    • (1950) Arch Neurol Psychiatry , vol.63 , pp. 535-568
    • Schut, J.W.1
  • 4
    • 0027164698 scopus 로고
    • Expansion of an unstable trinucleotide (CAG) repeat in spinocerebellar ataxia type I
    • Orr HT, Chung M-y, Banfi S, et al. Expansion of an unstable trinucleotide (CAG) repeat in spinocerebellar ataxia type I. Nature Genet 1993;4:221-226
    • (1993) Nature Genet , vol.4 , pp. 221-226
    • Orr, H.T.1    Chung, M.-Y.2    Banfi, S.3
  • 6
    • 0028143527 scopus 로고
    • CAG expansions in a novel gene for Machado-Joseph disease at chromosome 14q32.1
    • Kawaguchi Y, Okamoto T, Taniwaki M, et al. CAG expansions in a novel gene for Machado-Joseph disease at chromosome 14q32.1. Nature Genet 1994;8:221-228
    • (1994) Nature Genet , vol.8 , pp. 221-228
    • Kawaguchi, Y.1    Okamoto, T.2    Taniwaki, M.3
  • 7
    • 0031012399 scopus 로고    scopus 로고
    • Autosomal dominant cerevellar ataxia (SCA 6) associated with small polyglutamine expansion in the alpha 1A-voltage-dependent calcium channel
    • Zhuchenko O, Bailey J, Bonnen P, et al. Autosomal dominant cerevellar ataxia (SCA 6) associated with small polyglutamine expansion in the alpha 1A-voltage-dependent calcium channel. Nature Genet 1997;15:62-68
    • (1997) Nature Genet , vol.15 , pp. 62-68
    • Zhuchenko, O.1    Bailey, J.2    Bonnen, P.3
  • 8
    • 16944364511 scopus 로고    scopus 로고
    • Cloning of the SCA 7 gene reveals a highly unstable CAG repeat expansion
    • David G, Abbas N, Stevanin G, et al. Cloning of the SCA 7 gene reveals a highly unstable CAG repeat expansion. Nature Genet 1997;17:75-70
    • (1997) Nature Genet , vol.17 , pp. 75-170
    • David, G.1    Abbas, N.2    Stevanin, G.3
  • 9
    • 0029792130 scopus 로고    scopus 로고
    • Autosomal dominant spinocerebellar ataxia with sensory axonal neuropathy (SCA 4): Clinical description and genetic localization to chromosome 16q22.1
    • Flanigan K, Gardner K, Alderson K, et al. Autosomal dominant spinocerebellar ataxia with sensory axonal neuropathy (SCA 4): Clinical description and genetic localization to chromosome 16q22.1. Am J Hum Genet 1996;59:392-399
    • (1996) Am J Hum Genet , vol.59 , pp. 392-399
    • Flanigan, K.1    Gardner, K.2    Alderson, K.3
  • 10
    • 0028020605 scopus 로고
    • Spinocerebellar ataxia type 5 in a family descended from the grandparents of President Lincoln maps to chromosome 11
    • Ranum LPW, Chung M-y, Banfi S, et al. Spinocerebellar ataxia type 5 in a family descended from the grandparents of President Lincoln maps to chromosome 11. Nature Genet 1994;8:280-284
    • (1994) Nature Genet , vol.8 , pp. 280-284
    • Ranum, L.P.W.1    Chung, M.-Y.2    Banfi, S.3
  • 11
    • 0028124225 scopus 로고
    • Episodic ataxia/myokymia syndrome is associated with point mutations in the human potassium channel gene, KCNA 1
    • Browne DL, Cancher ST, Nutt JG, et al. Episodic ataxia/myokymia syndrome is associated with point mutations in the human potassium channel gene, KCNA 1. Nature Genet 1994;8:136-140
    • (1994) Nature Genet , vol.8 , pp. 136-140
    • Browne, D.L.1    Cancher, S.T.2    Nutt, J.G.3
  • 12
    • 16044370232 scopus 로고    scopus 로고
    • Familial hemiplegic migraine and episodic ataxia type 2 are caused by mutations in the Ca2+ channel gene CACNL1A4
    • Ophoff RA, Terwindt GM, Vergouwe MN, et al. Familial hemiplegic migraine and episodic ataxia type 2 are caused by mutations in the Ca2+ channel gene CACNL1A4. Cell 1996;87:543-552
    • (1996) Cell , vol.87 , pp. 543-552
    • Ophoff, R.A.1    Terwindt, G.M.2    Vergouwe, M.N.3
  • 13
    • 0024540966 scopus 로고
    • Assignment of autosomal dominant spinocerebellar ataxia (SCA 1) centrometic to the HLA region on the short arm of chromosome 6, using multilocus linkage analysis
    • Zoghbi HY, Sandkuyl LA, Ott J, et al. Assignment of autosomal dominant spinocerebellar ataxia (SCA 1) centrometic to the HLA region on the short arm of chromosome 6, using multilocus linkage analysis. Am J Hum Genet 1989;44:255-263
    • (1989) Am J Hum Genet , vol.44 , pp. 255-263
    • Zoghbi, H.Y.1    Sandkuyl, L.A.2    Ott, J.3
  • 14
    • 0028877774 scopus 로고
    • Analysis of the SCA-1 CAG repeat in a large number of families with dominant ataxia: Clinical and molecular correlations
    • Dubourg O, Durr A, Cancel G, et al. Analysis of the SCA-1 CAG repeat in a large number of families with dominant ataxia: Clinical and molecular correlations. Ann Neurol 1995;37:176-180
    • (1995) Ann Neurol , vol.37 , pp. 176-180
    • Dubourg, O.1    Durr, A.2    Cancel, G.3
  • 15
    • 0030272050 scopus 로고    scopus 로고
    • Autosomal dominant cerebellar ataxia type I. Clinical and molecular study in 36 Italian families including a comparison between SCA 1 and SCA 2 phenotypes
    • Filla A, De Michele G, Campanella G, et al. Autosomal dominant cerebellar ataxia type I. Clinical and molecular study in 36 Italian families including a comparison between SCA 1 and SCA 2 phenotypes. J Neurological Sci 1996;142:140-147
    • (1996) J Neurological Sci , vol.142 , pp. 140-147
    • Filla, A.1    De Michele, G.2    Campanella, G.3
  • 16
    • 0024997225 scopus 로고
    • Autosomal dominant cerevellar ataxia: Clinical analysis of 263 patients from a homogeneous population in Holguin, Cuba
    • Orozco G, Nodarse A, Cordoves RC, et al. Autosomal dominant cerevellar ataxia: Clinical analysis of 263 patients from a homogeneous population in Holguin, Cuba. Neurology 1990;40: 1369-1375
    • (1990) Neurology , vol.40 , pp. 1369-1375
    • Orozco, G.1    Nodarse, A.2    Cordoves, R.C.3
  • 17
    • 0031797677 scopus 로고    scopus 로고
    • A clinicogenetic analysis of six Indian spinocerebellar ataxia (SCA 2) pedigrees. The significance of slow saccades in diagnosis
    • Wadia N, Pang J, Desai J, et al. A clinicogenetic analysis of six Indian spinocerebellar ataxia (SCA 2) pedigrees. The significance of slow saccades in diagnosis. Brain 1998;121:2341-2355
    • (1998) Brain , vol.121 , pp. 2341-2355
    • Wadia, N.1    Pang, J.2    Desai, J.3
  • 18
    • 0027356605 scopus 로고
    • Epidemiology and clinical aspects of Machado-Joseph disease
    • Harding AE, Duefel T, eds. New York: Raven Press
    • Sequeiros J, Coutinho P. Epidemiology and clinical aspects of Machado-Joseph disease. In: Harding AE, Duefel T, eds. Advances in Neurology. New York: Raven Press, 1993:139-153
    • (1993) Advances in Neurology , pp. 139-153
    • Sequeiros, J.1    Coutinho, P.2
  • 19
    • 0029006340 scopus 로고
    • Molecular clinical correlations in spinocerebellar ataxia type 3 and Machado-Joseph disease
    • Matilla T, McCall A, Subramony SH, et al. Molecular clinical correlations in spinocerebellar ataxia type 3 and Machado-Joseph disease. Ann Neurol 1995;38:68-72
    • (1995) Ann Neurol , vol.38 , pp. 68-72
    • Matilla, T.1    McCall, A.2    Subramony, S.H.3
  • 20
    • 0029882009 scopus 로고    scopus 로고
    • Dominantly inherited cerebello-olivary atrophy is not due to a mutation at the spinocerebellar ataxia 1, Machado-Joseph disease, or dentatorubralpallidoluysian atrophy locus
    • Subramony SH, Fratkin JD, Manyam BV, et al. Dominantly inherited cerebello-olivary atrophy is not due to a mutation at the spinocerebellar ataxia 1, Machado-Joseph disease, or dentatorubralpallidoluysian atrophy locus. Mov Disord 1996;11:174-180
    • (1996) Mov Disord , vol.11 , pp. 174-180
    • Subramony, S.H.1    Fratkin, J.D.2    Manyam, B.V.3
  • 21
    • 0031442152 scopus 로고    scopus 로고
    • 1A voltage-dependent calcium channel gene and clinical variations in Japanese population
    • 1A voltage-dependent calcium channel gene and clinical variations in Japanese population. Ann Neurol 1997;42:879-884
    • (1997) Ann Neurol , vol.42 , pp. 879-884
    • Ikeuchi, T.1    Takano, H.2    Koide, R.3
  • 22
    • 0031454530 scopus 로고    scopus 로고
    • Spinocerebellar ataxia type 6: Gaze-evoked and vertical nystagmus, Purkinje cell degeneration, and variable age of onset
    • Gomez CM, Thompson RM, Gammack JT, et al. Spinocerebellar ataxia type 6: Gaze-evoked and vertical nystagmus, Purkinje cell degeneration, and variable age of onset. Ann Neurol 1997; 42:933-950
    • (1997) Ann Neurol , vol.42 , pp. 933-950
    • Gomez, C.M.1    Thompson, R.M.2    Gammack, J.T.3
  • 23
    • 0028304397 scopus 로고
    • Autosomal dominant cerebellar ataxia with pigmentary macular dystrophy: A clinical and genetic study of eight families
    • Enevoldson TP, Sanders MD, Harding AE. Autosomal dominant cerebellar ataxia with pigmentary macular dystrophy: A clinical and genetic study of eight families. Brain 1994;117:445-460
    • (1994) Brain , vol.117 , pp. 445-460
    • Enevoldson, T.P.1    Sanders, M.D.2    Harding, A.E.3
  • 24
    • 0029174129 scopus 로고
    • Dentatorubral-pallidoluysian atrophy (DRPLA)
    • Ikeuchi T, Koide R, Tanaka H, et al. Dentatorubral-pallidoluysian atrophy (DRPLA). Clin Neurosci 1995;3:23-27
    • (1995) Clin Neurosci , vol.3 , pp. 23-27
    • Ikeuchi, T.1    Koide, R.2    Tanaka, H.3
  • 25
    • 0028919918 scopus 로고
    • Episodic ataxias as channelopathies
    • Griggs RC, Nutt JG. Episodic ataxias as channelopathies. Ann Neurol 1995;37:285-287
    • (1995) Ann Neurol , vol.37 , pp. 285-287
    • Griggs, R.C.1    Nutt, J.G.2
  • 26
    • 0031683168 scopus 로고    scopus 로고
    • Autosomal dominant cerebellar ataxia type I. MRI-based columetry of posterior fossa structures and basal ganglia in spinocerebellar ataxia types 1, 2 and 3
    • Klockgether T, Skalej M, Wedekind D, et al. Autosomal dominant cerebellar ataxia type I. MRI-based columetry of posterior fossa structures and basal ganglia in spinocerebellar ataxia types 1, 2 and 3. Brain 1998;121:1687-1693
    • (1998) Brain , vol.121 , pp. 1687-1693
    • Klockgether, T.1    Skalej, M.2    Wedekind, D.3
  • 27
    • 9244229051 scopus 로고    scopus 로고
    • Unstable triplet repeat and phenotypic variability of spino-cerebellar ataxia type 1
    • Goldfarb LG, Vasconcelos O, Platonov FA, et al. Unstable triplet repeat and phenotypic variability of spino-cerebellar ataxia type 1. Ann Neurol 1996;39:500-506
    • (1996) Ann Neurol , vol.39 , pp. 500-506
    • Goldfarb, L.G.1    Vasconcelos, O.2    Platonov, F.A.3
  • 28
    • 0030294345 scopus 로고    scopus 로고
    • Cloning of the gene for spinocerebellar ataxia 2 reveals a locus with high sensitivity to expanded CAG/glutamine repeats
    • Imbert G, Saudou F, Yvert G, et al. Cloning of the gene for spinocerebellar ataxia 2 reveals a locus with high sensitivity to expanded CAG/glutamine repeats. Nature Genet 1996;14:285-291
    • (1996) Nature Genet , vol.14 , pp. 285-291
    • Imbert, G.1    Saudou, F.2    Yvert, G.3
  • 29
    • 0030292368 scopus 로고    scopus 로고
    • Identification of the spinocerebellar ataxia type 2 gene using a direct identification of repeat expansion and cloning technique, DIRECT
    • Sampei K, Takano H, Ifarashi S, et al. Identification of the spinocerebellar ataxia type 2 gene using a direct identification of repeat expansion and cloning technique, DIRECT. Nature Genet 1996;14:277-284
    • (1996) Nature Genet , vol.14 , pp. 277-284
    • Sampei, K.1    Takano, H.2    Ifarashi, S.3
  • 30
    • 0029969662 scopus 로고    scopus 로고
    • Analysis of CAG trinucleotide expansion associated with Machado-Joseph disease
    • Watanabe M, Abe K, Aoki M, et al. Analysis of CAG trinucleotide expansion associated with Machado-Joseph disease. J Neurologic Sci 1996;136:101-107
    • (1996) J Neurologic Sci , vol.136 , pp. 101-107
    • Watanabe, M.1    Abe, K.2    Aoki, M.3
  • 31
    • 6844254538 scopus 로고    scopus 로고
    • Molecular and clinical correlations in autosomal dominant cerebellar ataxia with progressive macular dystrophy (SCA 7)
    • David G, Durr A, Stevanin G, et al. Molecular and clinical correlations in autosomal dominant cerebellar ataxia with progressive macular dystrophy (SCA 7). Hum Molecular Genet 1998;7: 165-170
    • (1998) Hum Molecular Genet , vol.7 , pp. 165-170
    • David, G.1    Durr, A.2    Stevanin, G.3
  • 32
    • 0031963416 scopus 로고    scopus 로고
    • Expanded CAG repeats in Swedish spinocerebellar ataxia type 7 (SCA 7) patients: Effect of CAG repeat length on the clinical manifestation
    • Johansson J, Forsgren L, Sandgren O, et al. Expanded CAG repeats in Swedish spinocerebellar ataxia type 7 (SCA 7) patients: Effect of CAG repeat length on the clinical manifestation. Hum Mol Genet 1998;7:171-176
    • (1998) Hum Mol Genet , vol.7 , pp. 171-176
    • Johansson, J.1    Forsgren, L.2    Sandgren, O.3
  • 33
    • 0020523159 scopus 로고
    • Controlled trial of thyrotropin releasing hormone tartrate in ataxia of spinocerebellar degenerations
    • Sobue I, Takayanagi T, Nakanishi T, et al. Controlled trial of thyrotropin releasing hormone tartrate in ataxia of spinocerebellar degenerations. J Neurol Sci 1983;61:235-248
    • (1983) J Neurol Sci , vol.61 , pp. 235-248
    • Sobue, I.1    Takayanagi, T.2    Nakanishi, T.3
  • 34
    • 0023757433 scopus 로고
    • Improvement of cerebellar ataxia with levorotatary form of 5-hydroxytryptophan: A double-blind study with quantified data processing
    • Trouillas P, Brudon F, Adeleine P. Improvement of cerebellar ataxia with levorotatary form of 5-hydroxytryptophan: A double-blind study with quantified data processing. Arch Neurol 1988;45:1217-1222
    • (1988) Arch Neurol , vol.45 , pp. 1217-1222
    • Trouillas, P.1    Brudon, F.2    Adeleine, P.3
  • 35
    • 0025997730 scopus 로고
    • Treatment of heredo-degenerative ataxias with amantadine hydrochloride
    • Botez MI, Young SN, Botez T. Treatment of heredo-degenerative ataxias with amantadine hydrochloride. Can J Neurol Sci 1991;18:307-311
    • (1991) Can J Neurol Sci , vol.18 , pp. 307-311
    • Botez, M.I.1    Young, S.N.2    Botez, T.3
  • 36
    • 0028857105 scopus 로고
    • Sulfamethoxazole-trimethoprim double-blind, placebo-controlled, crossover trial in Machado-Joseph disease: Sulfamethoxazole-trimethoprim increases cerebrospinal fluid level of biopterin
    • Sakai T, Matsuishi T, Yamada S, et al. Sulfamethoxazole-trimethoprim double-blind, placebo-controlled, crossover trial in Machado-Joseph disease: Sulfamethoxazole-trimethoprim increases cerebrospinal fluid level of biopterin. J Neural Transm 1995;102:159-172
    • (1995) J Neural Transm , vol.102 , pp. 159-172
    • Sakai, T.1    Matsuishi, T.2    Yamada, S.3
  • 37
    • 0029160416 scopus 로고
    • Hereditary myokymia and paroxysmal ataxia linked to chromosome 12 is responsive to acetazolamide
    • Lubbers WJ, Brunt ER, Scheffer H, et al. Hereditary myokymia and paroxysmal ataxia linked to chromosome 12 is responsive to acetazolamide. J Neurol Neurosurg Psychiatry 1995;59:400-405
    • (1995) J Neurol Neurosurg Psychiatry , vol.59 , pp. 400-405
    • Lubbers, W.J.1    Brunt, E.R.2    Scheffer, H.3
  • 38
    • 0031446233 scopus 로고    scopus 로고
    • Intranuclear neuronal inclusions: A common pathogenic mechanism for glutamine-repeat neurodegenerative disease?
    • Ross CA. Intranuclear neuronal inclusions: A common pathogenic mechanism for glutamine-repeat neurodegenerative disease? Neuron 1997;19:1147-1150
    • (1997) Neuron , vol.19 , pp. 1147-1150
    • Ross, C.A.1
  • 39
    • 85038063720 scopus 로고    scopus 로고
    • Expression analysis of the ataxin 1 protein in tissues from normal and spinocerebellar ataxia type I individuals
    • Servadio S, Koshy B, Armstrong D, et al. Expression analysis of the ataxin 1 protein in tissues from normal and spinocerebellar ataxia type I individuals. Nature Genet 1997;389:971-978
    • (1997) Nature Genet , vol.389 , pp. 971-978
    • Servadio, S.1    Koshy, B.2    Armstrong, D.3
  • 40
    • 0030666001 scopus 로고    scopus 로고
    • Ataxin-1 with an expanded glutamine tract alters nuclear matrix-associated structures
    • Skinner PJ, Koshy BT, Cummings CJ, et al. Ataxin-1 with an expanded glutamine tract alters nuclear matrix-associated structures. Nature 1997;389:971-974
    • (1997) Nature , vol.389 , pp. 971-974
    • Skinner, P.J.1    Koshy, B.T.2    Cummings, C.J.3
  • 41
    • 0030850412 scopus 로고    scopus 로고
    • Intranuclear inclusions of expanded polyglutamine protein in spinocerebellar ataxia type 3
    • Paulson HL, Perez MK, Trottier Y, et al. Intranuclear inclusions of expanded polyglutamine protein in spinocerebellar ataxia type 3. Neuron 1997;19:333-344
    • (1997) Neuron , vol.19 , pp. 333-344
    • Paulson, H.L.1    Perez, M.K.2    Trottier, Y.3
  • 42
    • 7144229376 scopus 로고    scopus 로고
    • Spinocerebellar ataxia type 7 (SCA 7): A neurodegenerative disorder with neuronal intranuclear inclusions
    • Holmberg M, Duyckaerts C, Durr A, et al. Spinocerebellar ataxia type 7 (SCA 7): A neurodegenerative disorder with neuronal intranuclear inclusions. Hum Mol Genet 1998;7:913-918
    • (1998) Hum Mol Genet , vol.7 , pp. 913-918
    • Holmberg, M.1    Duyckaerts, C.2    Durr, A.3
  • 44
    • 0032475941 scopus 로고    scopus 로고
    • Ataxin-1 nuclear localization and aggregation: Role in polyglutamine-induced disease in SCA 1 transgenic mice
    • Klement IA, Skinner PJ, Kaytor MD, et al. Ataxin-1 nuclear localization and aggregation: Role in polyglutamine-induced disease in SCA 1 transgenic mice. Cell 1998;95:41-53
    • (1998) Cell , vol.95 , pp. 41-53
    • Klement, I.A.1    Skinner, P.J.2    Kaytor, M.D.3
  • 45
    • 0032900772 scopus 로고    scopus 로고
    • An untranslated CTG expansion causes a novel form of spinocerebellar ataxia (SCA 8)
    • Koob MD, Moseley ML, Schut LJ, et al. An untranslated CTG expansion causes a novel form of spinocerebellar ataxia (SCA 8). Nature Genetics 1999;21:379-384
    • (1999) Nature Genetics , vol.21 , pp. 379-384
    • Koob, M.D.1    Moseley, M.L.2    Schut, L.J.3
  • 46
    • 0033069723 scopus 로고    scopus 로고
    • Mapping of a new autosomal dominant spinocerebellar ataxia to chromosome 22
    • Zu L, Figueroa KP, Grewal R, Pulst S-M. Mapping of a new autosomal dominant spinocerebellar ataxia to chromosome 22. Am J Hum Genet 1999;64:594-599
    • (1999) Am J Hum Genet , vol.64 , pp. 594-599
    • Zu, L.1    Figueroa, Kp.2    Grewal, R.3    Pulst, S.-M.4
  • 47
    • 0032987869 scopus 로고    scopus 로고
    • Mapping of the gene for a novel spinocerebellar ataxia with pure cerebellar signs and epilepsy
    • Matsuura T, Achari M, Khajavi M, Bachinski LL, Zoghbi HY, Ashizawa T. Mapping of the gene for a novel spinocerebellar ataxia with pure cerebellar signs and epilepsy. Ann Neurol 1999;45:407-411
    • (1999) Ann Neurol , vol.45 , pp. 407-411
    • Matsuura, T.1    Achari, M.2    Khajavi, M.3    Bachinski, L.L.4    Zoghbi, H.Y.5    Ashizawa, T.6
  • 48
    • 0033358555 scopus 로고    scopus 로고
    • Autosomal dominant cerebellar ataxia type III: Linkage in a large British family to a 7.6-cM region on chromosome 15q14-21.3
    • Worth PF, Giunti P, Gardner-Thorpe C, Dixon PH, Davis MB, Wood NW. Autosomal dominant cerebellar ataxia type III: Linkage in a large British family to a 7.6-cM region on chromosome 15q14-21.3. Am J Hum Genet 1999;65:420-426
    • (1999) Am J Hum Genet , vol.65 , pp. 420-426
    • Worth, P.F.1    Giunti, P.2    Gardner-Thorpe, C.3    Dixon, P.H.4    Davis, M.B.5    Wood, N.W.6


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