Clinical trial NCT00140829: SPATAX: Clinical and Genetic Analysis of Cerebellar Ataxias and Spastic Paraplegias
Official title: Clinical and Genetic Analysis of Autosomal Recessive Forms of Cerebellar Ataxias and Spastic Paraplegias
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Cerebellar Ataxias
Spastic Paraplegias
Keywords: Cerebellar ataxias
Spastic paraplegias
Mutations spectrum
Linkage studies
Genetic counselling
Lead sponsor: Institut National de la Santé Et de la Recherche Médicale, France
Sponsor class: OTHER_GOV
Collaborators: name: Institut des Maladies Rares
name: National Research Agency, France
name: Paris Brain Institute (ICM)
First posted: 2005-09-01
Enrollment: 6000
Sex: ALL
Minimum age (years): 2
Maximum age (years): 70
Standard ages: CHILD
ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Observational model: FAMILY_BASED
Time perspective: PROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: French population

Brief summary: Cerebellar ataxias (CA) and spastic paraplegias (SP) are genetically and clinically very heterogeneous. More than 40 loci are already known but the number of phenotypes is even greater suggesting further genetic heterogeneity. These progressive disorders are often severe and fatal, due to the absence of specific therapy. The SPATAX network combines the experience of European clinicians and scientists working on these groups of diseases. Over the past year, they have assembled the largest collection of families and achieved a number of tasks (initiation of a clinical and genetic database, distribution of DNA to participating laboratories, mapping of three new loci, and refinement of several loci). In addition to clinicians from Europe and Mediterranean countries, who play a major role in collecting families according to evaluation tools developed and validated by the SPATAX members, the group includes major European laboratories devoted to the elucidation of the molecular basis of these disorders. Each laboratory will centralize all families with a subtype of autosomal recessive (AR) CA (n=116) or SP (n=207) in order to efficiently map and identify the responsible gene(s). Genome-wide scans are already underway in 61 families. Given the expertise of the participants, the researchers expect to map and identify several genes during the course of this project. The spectrum of mutations and phenotype/genotype correlations will be analysed thanks to this unique series of patients with various phenotypes. The knowledge gained will be immediately applicable to patients in terms of improved positive diagnosis, follow-up and appropriate genetic counselling. In the long term, models for genetic entity will be developed in order to understand the pathophysiology and to identify new targets for treatment. The series of patients assembled and the precise knowledge of natural history will facilitate the implantation of therapeutic trials based on rational approaches.


Eligibility criteria: Inclusion Criteria:

* Progressive ataxia or paraplegia

Exclusion Criteria:

* Lack of signed informed consent

Primary outcomes:
measure: Characterize clinically the different forms of these diseases
timeFrame: Year 1 to Year 7
measure: Elucidate the molecular bases of these diseases
timeFrame: through study duration (through study duration (up to 14 years) )
measure: Establish the natural history of spino-cerebellar degeneration
timeFrame: Year 1 to Year 7
Secondary outcomes:
Other outcomes:
Locations:
city: Algiers
country: Algeria
facility: CHU Mustapha
city: Brussels
country: Belgium
facility: Université Libre de Bruxelles - Hôpital Erasme
city: Copenhagen
country: Denmark
facility: The Panum Institute
city: Angers
country: France
facility: CHU d'Angers
city: Bordeaux
country: France
facility: Hôpital Pellegrin
city: Clermont-Ferrand
country: France
facility: Hôpitaux de Clermont-Ferrand
city: Grenoble
country: France
facility: CHU
city: Marseille
country: France
facility: Hôpital de la Timone
city: Nîmes
country: France
facility: Hôpital Carémeau
city: Paris
country: France
facility: Hôpital Armand Trousseau
city: Paris
country: France
facility: Pitié-Salpêtrière Hospital
city: Rouen
country: France
facility: Hôpital Charles Nicolle
city: Toulouse
country: France
facility: Hôpital Purpan
city: Jerusalem
country: Israel
facility: Hadassah-Hebrew University Hospital
city: Napoli
country: Italy
facility: Dipartimento Di Scienze Neurologiche
city: Roma
country: Italy
facility: Molecular Medicine and Department of Neurosciences
city: Beirut
country: Lebanon
facility: Université Saint-Joseph
city: Rabat
country: Morocco
facility: CHU de Rabat
city: Nijmegen
country: Netherlands
facility: Radboud University Nijmegen Medical Centre
city: Oslo
country: Norway
facility: Ullevål University Hospital
city: Porto
country: Portugal
facility: University of Porto
city: Santa Maria Da Feira
country: Portugal
facility: Hospital San Sebastião
city: Riyadh
country: Saudi Arabia
facility: King Khalid University Hospital
city: Belgrade
country: Serbia
facility: Clinical Centre of Serbia
city: Sfax
country: Tunisia
facility: Hôpital Habib Bourguiba
city: London
country: United Kingdom
facility: Royal Free and University College Medical School
city: London
country: United Kingdom
facility: The National Hospital
Study officials:
affiliation: Assistance Publique - Hôpitaux de Paris
name: Alexandra Dürr, MD, PhD
role: PRINCIPAL_INVESTIGATOR
affiliation: Federico II University
name: Alessandro Filla, MD, PhD
role: PRINCIPAL_INVESTIGATOR
affiliation: Université Saint-Joseph
name: André Mégarbané, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: CHU de Rabat
name: Ali Benomar, MD, PhD
role: PRINCIPAL_INVESTIGATOR
affiliation: University Hospital, Angers
name: Christophe Verny, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: Hôpitaux de Rouen
name: Didier Hannequin, MD, PhD
role: PRINCIPAL_INVESTIGATOR
affiliation: Assistance Publique - Hôpitaux de Paris
name: Diana Rodriguez, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: Università de Roma
name: Enrico Bertini, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: Hôpitaux de Bordeaux
name: François Tison, MD, PhD
role: PRINCIPAL_INVESTIGATOR
affiliation: The Panum Institute
name: Jorgen E Nielsen, MD, PhD
role: PRINCIPAL_INVESTIGATOR
affiliation: College of Medicine and KKUH
name: Mustapha Salih, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: Université d'Alger
name: Miriem Tazir, MD, PhD
role: PRINCIPAL_INVESTIGATOR
affiliation: Institute of Neurology
name: Nicholas W Wood, MD, PhD
role: PRINCIPAL_INVESTIGATOR
affiliation: Hôpitaux de Clermont-Ferrand
name: Odile Boespflug-Tanguy, MD, PhD
role: PRINCIPAL_INVESTIGATOR
affiliation: Assistance Publique - Hôpitaux de Marseille
name: Jean-Philippe Azulay, MD, PhD
role: PRINCIPAL_INVESTIGATOR
affiliation: Universidade do Porto
name: Paula Coutinho, MD, PhD
role: PRINCIPAL_INVESTIGATOR
affiliation: Hôpitaux de Nîmes
name: Pierre Labauge, MD, PhD
role: PRINCIPAL_INVESTIGATOR
affiliation: Hôpitaux de Grenoble
name: Pierre Pollak, MD, PhD
role: PRINCIPAL_INVESTIGATOR
affiliation: University College, London
name: Thomas T Warner, MD, PhD
role: PRINCIPAL_INVESTIGATOR
affiliation: Hadassah-Hebrew University Hospital
name: Alexander Lossos, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: Hôpital Pellegrin
name: Cyril Goizet, MD, PhD
role: PRINCIPAL_INVESTIGATOR
affiliation: Hôpital Purpan
name: Patrick Calvas, MD, PhD
role: PRINCIPAL_INVESTIGATOR
affiliation: Radboud University Medical Center
name: Berry Kremer, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: Clinical Centre of Serbia
name: Vladimir Kostic, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: Hôpital Habib Bourguiba
name: Chokri Mhiri, MD
role: PRINCIPAL_INVESTIGATOR
affiliation: Université Libre de Bruxelles - Hôpital Erasme
name: Massimo Pandolfo, MD, PhD
role: PRINCIPAL_INVESTIGATOR
affiliation: Universidade do Porto
name: Jorge Sequeiros, MD, PhD
role: PRINCIPAL_INVESTIGATOR
affiliation: Ullevaal University Hospital
name: Chantal ME Tallaksen, MD, PhD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Moreira MC, Klur S, Watanabe M, Nemeth AH, Le Ber I, Moniz JC, Tranchant C, Aubourg P, Tazir M, Schols L, Pandolfo M, Schulz JB, Pouget J, Calvas P, Shizuka-Ikeda M, Shoji M, Tanaka M, Izatt L, Shaw CE, M'Zahem A, Dunne E, Bomont P, Benhassine T, Bouslam N, Stevanin G, Brice A, Guimaraes J, Mendonca P, Barbot C, Coutinho P, Sequeiros J, Durr A, Warter JM, Koenig M. Senataxin, the ortholog of a yeast RNA helicase, is mutant in ataxia-ocular apraxia 2. Nat Genet. 2004 Mar;36(3):225-7. doi: 10.1038/ng1303. Epub 2004 Feb 8.
citation: Le Ber I, Bouslam N, Rivaud-Pechoux S, Guimaraes J, Benomar A, Chamayou C, Goizet C, Moreira MC, Klur S, Yahyaoui M, Agid Y, Koenig M, Stevanin G, Brice A, Durr A. Frequency and phenotypic spectrum of ataxia with oculomotor apraxia 2: a clinical and genetic study in 18 patients. Brain. 2004 Apr;127(Pt 4):759-67. doi: 10.1093/brain/awh080. Epub 2004 Jan 21.
citation: Le Ber I, Moreira MC, Rivaud-Pechoux S, Chamayou C, Ochsner F, Kuntzer T, Tardieu M, Said G, Habert MO, Demarquay G, Tannier C, Beis JM, Brice A, Koenig M, Durr A. Cerebellar ataxia with oculomotor apraxia type 1: clinical and genetic studies. Brain. 2003 Dec;126(Pt 12):2761-72. doi: 10.1093/brain/awg283. Epub 2003 Sep 23.
citation: Le Ber I, Camuzat A, Castelnovo G, Azulay JP, Genton P, Gastaut JL, Broglin D, Labauge P, Brice A, Durr A. Prevalence of dentatorubral-pallidoluysian atrophy in a large series of white patients with cerebellar ataxia. Arch Neurol. 2003 Aug;60(8):1097-9. doi: 10.1001/archneur.60.8.1097.
citation: Bouslam N, Benomar A, Azzedine H, Bouhouche A, Namekawa M, Klebe S, Charon C, Durr A, Ruberg M, Brice A, Yahyaoui M, Stevanin G. Mapping of a new form of pure autosomal recessive spastic paraplegia (SPG28). Ann Neurol. 2005 Apr;57(4):567-71. doi: 10.1002/ana.20416.
citation: Durr A, Camuzat A, Colin E, Tallaksen C, Hannequin D, Coutinho P, Fontaine B, Rossi A, Gil R, Rousselle C, Ruberg M, Stevanin G, Brice A. Atlastin1 mutations are frequent in young-onset autosomal dominant spastic paraplegia. Arch Neurol. 2004 Dec;61(12):1867-72. doi: 10.1001/archneur.61.12.1867.
citation: Stevanin G, Durr A, Dussert C, Penet C, Brice A. Mutations in the FGF14 gene are not a major cause of spinocerebellar ataxia in Caucasians. Neurology. 2004 Sep 14;63(5):936. doi: 10.1212/01.wnl.0000137020.30604.1e. No abstract available.
citation: Stevanin G, Hahn V, Lohmann E, Bouslam N, Gouttard M, Soumphonphakdy C, Welter ML, Ollagnon-Roman E, Lemainque A, Ruberg M, Brice A, Durr A. Mutation in the catalytic domain of protein kinase C gamma and extension of the phenotype associated with spinocerebellar ataxia type 14. Arch Neurol. 2004 Aug;61(8):1242-8. doi: 10.1001/archneur.61.8.1242.
citation: Stevanin G, Bouslam N, Thobois S, Azzedine H, Ravaux L, Boland A, Schalling M, Broussolle E, Durr A, Brice A. Spinocerebellar ataxia with sensory neuropathy (SCA25) maps to chromosome 2p. Ann Neurol. 2004 Jan;55(1):97-104. doi: 10.1002/ana.10798.
citation: Tallaksen CM, Guichart-Gomez E, Verpillat P, Hahn-Barma V, Ruberg M, Fontaine B, Brice A, Dubois B, Durr A. Subtle cognitive impairment but no dementia in patients with spastin mutations. Arch Neurol. 2003 Aug;60(8):1113-8. doi: 10.1001/archneur.60.8.1113.
citation: Fernet M, Gribaa M, Salih MA, Seidahmed MZ, Hall J, Koenig M. Identification and functional consequences of a novel MRE11 mutation affecting 10 Saudi Arabian patients with the ataxia telangiectasia-like disorder. Hum Mol Genet. 2005 Jan 15;14(2):307-18. doi: 10.1093/hmg/ddi027. Epub 2004 Dec 1.
citation: Stevanin G, Durr A, Benammar N, Brice A. Spinocerebellar ataxia with mental retardation (SCA13). Cerebellum. 2005;4(1):43-6. doi: 10.1080/14734220510007923.
citation: Stevanin G, Broussolle E, Streichenberger N, Kopp N, Brice A, Durr A. Spinocerebellar ataxia with sensory neuropathy (SCA25). Cerebellum. 2005;4(1):58-61. doi: 10.1080/14734220510007932.
citation: Klebe S, Durr A, Rentschler A, Hahn-Barma V, Abele M, Bouslam N, Schols L, Jedynak P, Forlani S, Denis E, Dussert C, Agid Y, Bauer P, Globas C, Wullner U, Brice A, Riess O, Stevanin G. New mutations in protein kinase Cgamma associated with spinocerebellar ataxia type 14. Ann Neurol. 2005 Nov;58(5):720-9. doi: 10.1002/ana.20628.
citation: Latouche M, Fragner P, Martin E, El Hachimi KH, Zander C, Sittler A, Ruberg M, Brice A, Stevanin G. Polyglutamine and polyalanine expansions in ataxin7 result in different types of aggregation and levels of toxicity. Mol Cell Neurosci. 2006 Mar;31(3):438-45. doi: 10.1016/j.mcn.2005.10.013. Epub 2005 Dec 1.
citation: Namekawa M, Ribai P, Nelson I, Forlani S, Fellmann F, Goizet C, Depienne C, Stevanin G, Ruberg M, Durr A, Brice A. SPG3A is the most frequent cause of hereditary spastic paraplegia with onset before age 10 years. Neurology. 2006 Jan 10;66(1):112-4. doi: 10.1212/01.wnl.0000191390.20564.8e.
citation: van de Warrenburg BP, Hendriks H, Durr A, van Zuijlen MC, Stevanin G, Camuzat A, Sinke RJ, Brice A, Kremer BP. Age at onset variance analysis in spinocerebellar ataxias: a study in a Dutch-French cohort. Ann Neurol. 2005 Apr;57(4):505-12. doi: 10.1002/ana.20424.
citation: Biancalana V, Toft M, Le Ber I, Tison F, Scherrer E, Thibodeau S, Mandel JL, Brice A, Farrer MJ, Durr A. FMR1 premutations associated with fragile X-associated tremor/ataxia syndrome in multiple system atrophy. Arch Neurol. 2005 Jun;62(6):962-6. doi: 10.1001/archneur.62.6.962.
citation: Ribaï P, Stevanin G, Trefouret S, Nelson I, Soumphonphakdy C, Pouget J, Dürr A, Brice A. Extension of the SPG26 phenotype in a Spanish family and refinement of its locus on chromosome 12. Eletter, Journal of Medical Genetics 42(1):80-82, 2005.
citation: Elleuch N, Depienne C, Benomar A, Hernandez AM, Ferrer X, Fontaine B, Grid D, Tallaksen CM, Zemmouri R, Stevanin G, Durr A, Brice A. Mutation analysis of the paraplegin gene (SPG7) in patients with hereditary spastic paraplegia. Neurology. 2006 Mar 14;66(5):654-9. doi: 10.1212/01.wnl.0000201185.91110.15.
citation: Le Ber I, Rivaud-Pechoux S, Brice A, Durr A. [Autosomal recessive cerebellar ataxias with oculomotor apraxia]. Rev Neurol (Paris). 2006 Feb;162(2):177-84. doi: 10.1016/s0035-3787(06)74997-9. French.
citation: Namekawa M, Nelson I, Ribai P, Durr A, Denis E, Stevanin G, Ruberg M, Brice A. A founder effect and mutational hot spots may contribute to the most frequent mutations in the SPG3A gene. Neurogenetics. 2006 May;7(2):131-2. doi: 10.1007/s10048-006-0028-2. Epub 2006 Apr 13. No abstract available.
citation: Lossos A, Stevanin G, Meiner V, Argov Z, Bouslam N, Newman JP, Gomori JM, Klebe S, Lerer I, Elleuch N, Silverstein S, Durr A, Abramsky O, Ben-Nariah Z, Brice A. Hereditary spastic paraplegia with thin corpus callosum: reduction of the SPG11 interval and evidence for further genetic heterogeneity. Arch Neurol. 2006 May;63(5):756-60. doi: 10.1001/archneur.63.5.756.
citation: Klebe S, Azzedine H, Durr A, Bastien P, Bouslam N, Elleuch N, Forlani S, Charon C, Koenig M, Melki J, Brice A, Stevanin G. Autosomal recessive spastic paraplegia (SPG30) with mild ataxia and sensory neuropathy maps to chromosome 2q37.3. Brain. 2006 Jun;129(Pt 6):1456-62. doi: 10.1093/brain/awl012. Epub 2006 Jan 24.
citation: Ribai P, Stevanin G, Bouslam N, Pontier B, Nelson I, Fontaine B, Dussert C, Charon C, Durr A, Brice A. A new phenotype linked to SPG27 and refinement of the critical region on chromosome. J Neurol. 2006 Jun;253(6):714-9. doi: 10.1007/s00415-006-0094-2. Epub 2006 Mar 6.
citation: Le Ber I, Clot F, Vercueil L, Camuzat A, Viemont M, Benamar N, De Liege P, Ouvrard-Hernandez AM, Pollak P, Stevanin G, Brice A, Durr A. Predominant dystonia with marked cerebellar atrophy: a rare phenotype in familial dystonia. Neurology. 2006 Nov 28;67(10):1769-73. doi: 10.1212/01.wnl.0000244484.60489.50.
citation: Stevanin G, Montagna G, Azzedine H, Valente EM, Durr A, Scarano V, Bouslam N, Cassandrini D, Denora PS, Criscuolo C, Belarbi S, Orlacchio A, Jonveaux P, Silvestri G, Hernandez AM, De Michele G, Tazir M, Mariotti C, Brockmann K, Malandrini A, van der Knapp MS, Neri M, Tonekaboni H, Melone MA, Tessa A, Dotti MT, Tosetti M, Pauri F, Federico A, Casali C, Cruz VT, Loureiro JL, Zara F, Forlani S, Bertini E, Coutinho P, Filla A, Brice A, Santorelli FM. Spastic paraplegia with thin corpus callosum: description of 20 new families, refinement of the SPG11 locus, candidate gene analysis and evidence of genetic heterogeneity. Neurogenetics. 2006 Jul;7(3):149-56. doi: 10.1007/s10048-006-0044-2. Epub 2006 May 13.
citation: Klebe S, Lacour A, Durr A, Stojkovic T, Depienne C, Forlani S, Poea-Guyon S, Vuillaume I, Sablonniere B, Vermersch P, Brice A, Stevanin G. NIPA1 (SPG6) mutations are a rare cause of autosomal dominant spastic paraplegia in Europe. Neurogenetics. 2007 Apr;8(2):155-7. doi: 10.1007/s10048-006-0074-9. Epub 2007 Jan 5. No abstract available.
citation: Bouslam N, Bouhouche A, Benomar A, Hanein S, Klebe S, Azzedine H, Di Giandomenico S, Boland-Auge A, Santorelli FM, Durr A, Brice A, Yahyaoui M, Stevanin G. A novel locus for autosomal recessive spastic ataxia on chromosome 17p. Hum Genet. 2007 May;121(3-4):413-20. doi: 10.1007/s00439-007-0328-0. Epub 2007 Feb 2.
citation: Stevanin G, Santorelli FM, Azzedine H, Coutinho P, Chomilier J, Denora PS, Martin E, Ouvrard-Hernandez AM, Tessa A, Bouslam N, Lossos A, Charles P, Loureiro JL, Elleuch N, Confavreux C, Cruz VT, Ruberg M, Leguern E, Grid D, Tazir M, Fontaine B, Filla A, Bertini E, Durr A, Brice A. Mutations in SPG11, encoding spatacsin, are a major cause of spastic paraplegia with thin corpus callosum. Nat Genet. 2007 Mar;39(3):366-72. doi: 10.1038/ng1980. Epub 2007 Feb 18.
citation: Latouche M, Lasbleiz C, Martin E, Monnier V, Debeir T, Mouatt-Prigent A, Muriel MP, Morel L, Ruberg M, Brice A, Stevanin G, Tricoire H. A conditional pan-neuronal Drosophila model of spinocerebellar ataxia 7 with a reversible adult phenotype suitable for identifying modifier genes. J Neurosci. 2007 Mar 7;27(10):2483-92. doi: 10.1523/JNEUROSCI.5453-06.2007.
citation: Klebe S, Durr A, Bouslam N, Grid D, Paternotte C, Depienne C, Hanein S, Bouhouche A, Elleuch N, Azzedine H, Poea-Guyon S, Forlani S, Denis E, Charon C, Hazan J, Brice A, Stevanin G. Spastic paraplegia 5: Locus refinement, candidate gene analysis and clinical description. Am J Med Genet B Neuropsychiatr Genet. 2007 Oct 5;144B(7):854-61. doi: 10.1002/ajmg.b.30518.
citation: Stevanin G, Paternotte C, Coutinho P, Klebe S, Elleuch N, Loureiro JL, Denis E, Cruz VT, Durr A, Prud'homme JF, Weissenbach J, Brice A, Hazan J. A new locus for autosomal recessive spastic paraplegia (SPG32) on chromosome 14q12-q21. Neurology. 2007 May 22;68(21):1837-40. doi: 10.1212/01.wnl.0000262043.53386.22.
citation: Namekawa M, Muriel MP, Janer A, Latouche M, Dauphin A, Debeir T, Martin E, Duyckaerts C, Prigent A, Depienne C, Sittler A, Brice A, Ruberg M. Mutations in the SPG3A gene encoding the GTPase atlastin interfere with vesicle trafficking in the ER/Golgi interface and Golgi morphogenesis. Mol Cell Neurosci. 2007 May;35(1):1-13. doi: 10.1016/j.mcn.2007.01.012. Epub 2007 Jan 26.
citation: Stevanin G, Azzedine H, Denora P, Boukhris A, Tazir M, Lossos A, Rosa AL, Lerer I, Hamri A, Alegria P, Loureiro J, Tada M, Hannequin D, Anheim M, Goizet C, Gonzalez-Martinez V, Le Ber I, Forlani S, Iwabuchi K, Meiner V, Uyanik G, Erichsen AK, Feki I, Pasquier F, Belarbi S, Cruz VT, Depienne C, Truchetto J, Garrigues G, Tallaksen C, Tranchant C, Nishizawa M, Vale J, Coutinho P, Santorelli FM, Mhiri C, Brice A, Durr A; SPATAX consortium. Mutations in SPG11 are frequent in autosomal recessive spastic paraplegia with thin corpus callosum, cognitive decline and lower motor neuron degeneration. Brain. 2008 Mar;131(Pt 3):772-84. doi: 10.1093/brain/awm293. Epub 2007 Dec 13.
citation: Boukhris A, Feki I, Denis E, Miladi MI, Brice A, Mhiri C, Stevanin G. Spastic paraplegia 15: linkage and clinical description of three Tunisian families. Mov Disord. 2008 Feb 15;23(3):429-33. doi: 10.1002/mds.21848.
citation: Boukhris A, Stevanin G, Feki I, Denis E, Elleuch N, Miladi MI, Truchetto J, Denora P, Belal S, Mhiri C, Brice A. Hereditary spastic paraplegia with mental impairment and thin corpus callosum in Tunisia: SPG11, SPG15, and further genetic heterogeneity. Arch Neurol. 2008 Mar;65(3):393-402. doi: 10.1001/archneur.65.3.393.
citation: Hanein S, Martin E, Boukhris A, Byrne P, Goizet C, Hamri A, Benomar A, Lossos A, Denora P, Fernandez J, Elleuch N, Forlani S, Durr A, Feki I, Hutchinson M, Santorelli FM, Mhiri C, Brice A, Stevanin G. Identification of the SPG15 gene, encoding spastizin, as a frequent cause of complicated autosomal-recessive spastic paraplegia, including Kjellin syndrome. Am J Hum Genet. 2008 Apr;82(4):992-1002. doi: 10.1016/j.ajhg.2008.03.004.
citation: Denora PS, Schlesinger D, Casali C, Kok F, Tessa A, Boukhris A, Azzedine H, Dotti MT, Bruno C, Truchetto J, Biancheri R, Fedirko E, Di Rocco M, Bueno C, Malandrini A, Battini R, Sickl E, de Leva MF, Boespflug-Tanguy O, Silvestri G, Simonati A, Said E, Ferbert A, Criscuolo C, Heinimann K, Modoni A, Weber P, Palmeri S, Plasilova M, Pauri F, Cassandrini D, Battisti C, Pini A, Tosetti M, Hauser E, Masciullo M, Di Fabio R, Piccolo F, Denis E, Cioni G, Massa R, Della Giustina E, Calabrese O, Melone MA, De Michele G, Federico A, Bertini E, Durr A, Brockmann K, van der Knaap MS, Zatz M, Filla A, Brice A, Stevanin G, Santorelli FM. Screening of ARHSP-TCC patients expands the spectrum of SPG11 mutations and includes a large scale gene deletion. Hum Mutat. 2009 Mar;30(3):E500-19. doi: 10.1002/humu.20945.
citation: Denora PS, Muglia M, Casali C, Truchetto J, Silvestri G, Messina D, Boukrhis A, Magariello A, Modoni A, Masciullo M, Malandrini A, Morelli M, de Leva MF, Villanova M, Giugni E, Citrigno L, Rizza T, Federico A, Pierallini A, Quattrone A, Filla A, Brice A, Stevanin G, Santorelli FM. Spastic paraplegia with thinning of the corpus callosum and white matter abnormalities: further mutations and relative frequency in ZFYVE26/SPG15 in the Italian population. J Neurol Sci. 2009 Feb 15;277(1-2):22-5. doi: 10.1016/j.jns.2008.09.039. Epub 2008 Dec 13.
citation: Boukhris A, Stevanin G, Feki I, Denora P, Elleuch N, Miladi MI, Goizet C, Truchetto J, Belal S, Brice A, Mhiri C. Tunisian hereditary spastic paraplegias: clinical variability supported by genetic heterogeneity. Clin Genet. 2009 Jun;75(6):527-36. doi: 10.1111/j.1399-0004.2009.01176.x. Epub 2009 May 5.
citation: Anheim M, Lagier-Tourenne C, Stevanin G, Fleury M, Durr A, Namer IJ, Denora P, Brice A, Mandel JL, Koenig M, Tranchant C. SPG11 spastic paraplegia. A new cause of juvenile parkinsonism. J Neurol. 2009 Jan;256(1):104-8. doi: 10.1007/s00415-009-0083-3. Epub 2009 Feb 9.
citation: Goizet C, Boukhris A, Durr A, Beetz C, Truchetto J, Tesson C, Tsaousidou M, Forlani S, Guyant-Marechal L, Fontaine B, Guimaraes J, Isidor B, Chazouilleres O, Wendum D, Grid D, Chevy F, Chinnery PF, Coutinho P, Azulay JP, Feki I, Mochel F, Wolf C, Mhiri C, Crosby A, Brice A, Stevanin G. CYP7B1 mutations in pure and complex forms of hereditary spastic paraplegia type 5. Brain. 2009 Jun;132(Pt 6):1589-600. doi: 10.1093/brain/awp073. Epub 2009 May 12.
citation: Goizet C, Boukhris A, Maltete D, Guyant-Marechal L, Truchetto J, Mundwiller E, Hanein S, Jonveaux P, Roelens F, Loureiro J, Godet E, Forlani S, Melki J, Auer-Grumbach M, Fernandez JC, Martin-Hardy P, Sibon I, Sole G, Orignac I, Mhiri C, Coutinho P, Durr A, Brice A, Stevanin G. SPG15 is the second most common cause of hereditary spastic paraplegia with thin corpus callosum. Neurology. 2009 Oct 6;73(14):1111-9. doi: 10.1212/WNL.0b013e3181bacf59.
citation: Anheim M, Monga B, Fleury M, Charles P, Barbot C, Salih M, Delaunoy JP, Fritsch M, Arning L, Synofzik M, Schols L, Sequeiros J, Goizet C, Marelli C, Le Ber I, Koht J, Gazulla J, De Bleecker J, Mukhtar M, Drouot N, Ali-Pacha L, Benhassine T, Chbicheb M, M'Zahem A, Hamri A, Chabrol B, Pouget J, Murphy R, Watanabe M, Coutinho P, Tazir M, Durr A, Brice A, Tranchant C, Koenig M. Ataxia with oculomotor apraxia type 2: clinical, biological and genotype/phenotype correlation study of a cohort of 90 patients. Brain. 2009 Oct;132(Pt 10):2688-98. doi: 10.1093/brain/awp211. Epub 2009 Aug 20.