{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,18]],"date-time":"2026-10-18T14:21:13Z","timestamp":1792333273393,"version":"4.4.0"},"reference-count":35,"publisher":"Cambridge University Press (CUP)","issue":"2","license":[{"start":{"date-parts":[[2014,12,2]],"date-time":"2014-12-02T00:00:00Z","timestamp":1417478400000},"content-version":"unspecified","delay-in-days":2772,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Can. j. neurol. sci."],"published-print":{"date-parts":[[2007,5]]},"abstract":"<jats:sec id=\"S0317167100006065_abs1\"><jats:title>Background:<\/jats:title><jats:p>The most common cause of autosomal dominant Hereditary Spastic Paraplegia (HSP) is mutations in the <jats:italic>SPG4<\/jats:italic> gene. We have previously identified novel <jats:italic>SPG4<\/jats:italic> mutations in a collection of North American families including the c.G1801A mutation present in two families from Quebec. The aim of this study is to estimate the frequency of the c.G1801A mutation in the French Canadian (FC) population and to determine whether this mutation originates from a common ancestor.<\/jats:p><\/jats:sec><jats:sec id=\"S0317167100006065_abs2\"><jats:title>Methods:<\/jats:title><jats:p>We collected and sequenced exon 15 in probands of 37 families. Genotypes of markers flanking the <jats:italic>SPG4<\/jats:italic> gene were used to construct haplotypes in five families. Clinical information was reviewed by a neurologist with expertise in HSP.<\/jats:p><\/jats:sec><jats:sec id=\"S0317167100006065_abs3\"><jats:title>Results:<\/jats:title><jats:p>We have identified three additional unrelated families with the c.G1801A mutation and haplotype analysis revealed that all five families share a common ancestor. The mutation is present in 7% of all our FC families and explains half of our spastin linked FC families. The phenotype associated with the c.G1801A genotype is pure HSP with bladder involvement.<\/jats:p><\/jats:sec><jats:sec id=\"S0317167100006065_abs4\"><jats:title>Conclusion:<\/jats:title><jats:p>In this study we have determined that the relative frequency of the c.G1801A mutation in our FC collection is 7%, and approximately 50% in the spastin positive FC group. This mutation is the most common HSP mutation identified in this population to date and is suggestive of a founder effect in Quebec.<\/jats:p><\/jats:sec>","DOI":"10.1017\/s0317167100006065","type":"journal-article","created":{"date-parts":[[2014,12,12]],"date-time":"2014-12-12T10:27:42Z","timestamp":1418380062000},"page":"211-214","source":"Crossref","is-referenced-by-count":7,"title":["SPG4 Founder Effect in French Canadians with Hereditary Spastic Paraplegia"],"prefix":"10.1017","volume":"34","author":[{"given":"Inge A.","family":"Meijer","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nicolas","family":"Dupr\u00e9","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bernard","family":"Brais","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Patrick","family":"Cossette","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Judith","family":"St-Onge","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marie-France","family":"Rioux","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Melanie","family":"Benard","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guy A.","family":"Rouleau","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2014,12,2]]},"reference":[{"key":"S0317167100006065_ref012","doi-asserted-by":"publisher","DOI":"10.1136\/jmg.2005.035311"},{"key":"S0317167100006065_ref016","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.55.9.1388"},{"key":"S0317167100006065_ref009","doi-asserted-by":"publisher","DOI":"10.1086\/378817"},{"key":"S0317167100006065_ref027","doi-asserted-by":"publisher","DOI":"10.1017\/S031716710000490X"},{"key":"S0317167100006065_ref033","doi-asserted-by":"publisher","DOI":"10.1016\/j.jns.2005.03.040"},{"key":"S0317167100006065_ref025","doi-asserted-by":"publisher","DOI":"10.1136\/jmg.2005.035311"},{"key":"S0317167100006065_ref028","doi-asserted-by":"publisher","DOI":"10.1038\/sj.ejhg.5200471"},{"key":"S0317167100006065_ref001","doi-asserted-by":"publisher","DOI":"10.1055\/s-2008-1041143"},{"key":"S0317167100006065_ref017","doi-asserted-by":"publisher","DOI":"10.1038\/sj.ejhg.5200528"},{"key":"S0317167100006065_ref005","doi-asserted-by":"publisher","DOI":"10.1212\/01.WNL.0000036909.49629.21"},{"key":"S0317167100006065_ref004","doi-asserted-by":"publisher","DOI":"10.1086\/379522"},{"key":"S0317167100006065_ref021","doi-asserted-by":"publisher","DOI":"10.1002\/ana.20239"},{"key":"S0317167100006065_ref002","doi-asserted-by":"publisher","DOI":"10.1136\/jmg.40.2.81"},{"key":"S0317167100006065_ref003","doi-asserted-by":"publisher","DOI":"10.1016\/j.expneurol.2003.08.005"},{"key":"S0317167100006065_ref006","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/awl012"},{"key":"S0317167100006065_ref007","doi-asserted-by":"publisher","DOI":"10.1007\/s10048-006-0029-1"},{"key":"S0317167100006065_ref008","doi-asserted-by":"publisher","DOI":"10.1086\/344206"},{"key":"S0317167100006065_ref010","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/119.5.1487"},{"key":"S0317167100006065_ref011","doi-asserted-by":"publisher","DOI":"10.1016\/j.pharmthera.2005.06.001"},{"key":"S0317167100006065_ref013","doi-asserted-by":"publisher","DOI":"10.1093\/hmg\/11.2.153"},{"key":"S0317167100006065_ref014","doi-asserted-by":"publisher","DOI":"10.1016\/j.cub.2005.02.029"},{"key":"S0317167100006065_ref015","doi-asserted-by":"publisher","DOI":"10.1038\/15472"},{"key":"S0317167100006065_ref018","doi-asserted-by":"publisher","DOI":"10.1093\/hmg\/9.4.637"},{"key":"S0317167100006065_ref020","doi-asserted-by":"publisher","DOI":"10.1001\/archneur.59.2.281"},{"key":"S0317167100006065_ref022","doi-asserted-by":"publisher","DOI":"10.1212\/01.wnl.0000223315.62404.00"},{"key":"S0317167100006065_ref023","doi-asserted-by":"publisher","DOI":"10.1001\/archneur.63.5.750"},{"key":"S0317167100006065_ref024","doi-asserted-by":"publisher","DOI":"10.1002\/humu.10105"},{"key":"S0317167100006065_ref026","doi-asserted-by":"publisher","DOI":"10.1111\/j.1399-0004.2005.00497.x"},{"key":"S0317167100006065_ref029","doi-asserted-by":"publisher","DOI":"10.1001\/archneur.61.6.849"},{"key":"S0317167100006065_ref030","doi-asserted-by":"publisher","DOI":"10.1007\/s10048-006-0028-2"},{"key":"S0317167100006065_ref031","doi-asserted-by":"publisher","DOI":"10.1111\/j.1468-1331.2004.00888.x"},{"key":"S0317167100006065_ref032","doi-asserted-by":"publisher","DOI":"10.1212\/01.wnl.0000167130.31618.0a"},{"key":"S0317167100006065_ref034","doi-asserted-by":"publisher","DOI":"10.1002\/pd.875"},{"key":"S0317167100006065_ref035","doi-asserted-by":"publisher","DOI":"10.1172\/JCI24694"},{"key":"S0317167100006065_ref019","doi-asserted-by":"publisher","DOI":"10.1136\/jmg.40.9.e106"}],"container-title":["Canadian Journal of Neurological Sciences \/ Journal Canadien des Sciences Neurologiques"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0317167100006065","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,5,1]],"date-time":"2019-05-01T19:45:18Z","timestamp":1556739918000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0317167100006065\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2007,5]]},"references-count":35,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2007,5]]}},"alternative-id":["S0317167100006065"],"URL":"https:\/\/doi.org\/10.1017\/s0317167100006065","relation":{},"ISSN":["0317-1671","2057-0155"],"issn-type":[{"value":"0317-1671","type":"print"},{"value":"2057-0155","type":"electronic"}],"subject":[],"published":{"date-parts":[[2007,5]]}}}