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排序方式: 共有116条查询结果,搜索用时 15 毫秒
1.
Michael Hutchinson Jonathon O'Riordan Mohammed Javed Etain Quin Donal Macerlaine Teresa Willcox Nollaig Parfrey Tamas G. Nagy Elisabeth Tournier-Lasserve 《Annals of neurology》1995,38(5):817-824
Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is a recently described familial cerebrovascular disorder shown to map to chromosome 19q12. Familial hemiplegic migraine has also been shown in some families to map close to the CADASIL locus. The fully developed CADASIL phenotype consists of recurrent strokes developing in the fourth decade, progressing to a pseudobulbar palsy, spastic quadriparesis, and subcortical dementia. In an Irish family 15 members were fully investigated by magnetic resonance scanning; 10 had typical magnetic resonance features of CADASIL. Five members of this family had familial hemiplegic migraine and 4 of these had magnetic resonance evidence of CADASIL. Two other members had migraine with and without aura as a presenting clinical symptom of CADASIL. This disorder has been shown by linkage analysis to map to the CADASIL locus at chromosome 19. The phenotype at presentation of CADASIL in this family was variable and age related and included familial hemiplegic migraine, migraine with and without aura, transient ischemic attacks, strokes, and spinal cord infarction. This family study increases our understanding of the spectrum of clinical manifestations of this underrecognized familial cerebrovascular disorder. 相似文献
2.
Ananth Shanmugam Christiane Copie-Bergman George Hashim Danielle Rebibo Jean Philippe Jais Jean-Francois Bach Marie Anne Bach Elisabeth Tournier-Lasserve 《European journal of immunology》1994,24(10):2299-2303
The T cell response against myelin basic protein (MBP) has been extensively studied in humans because of its putative role in the pathophysiology of multiple sclerosis (MS). Higher concordance rates in monozygous twins as well as an increased risk in relatives suggest the role of genetic factors in MS susceptibility. Very little is known about the shaping of T cell repertoire towards self antigens in humans and their contribution to disease susceptibility in autoimmune disorders. Here we report the comparative T cell epitope recognition patterns towards the MBP auto-antigen in healthy identical twins. We have established MBP-specific T cell lines from eight sets of twins and characterized their fine epitope specificity. Intra-pair comparison showed the co-existence of shared as well as distinct epitopes in six of eight pairs and a complete absence of concordant epitope recognition within two other pairs. These findings indicate that important differences in T cell repertoires against a self antigen may be observed between genetically identical healthy individuals, rendering difficult the interpretation of the differences which may be observed between identical twins discordant for an autoimmune disease. 相似文献
3.
Recurrent episodes of coma: an unusual phenotype of familial hemiplegic migraine with linkage to chromosome 1 总被引:4,自引:0,他引:4
Echenne B Ducros A Rivier F Joutel A Humbertclaude V Roubertie A Azaïs M Bousser MG Tournier-Lasserve E 《Neuropediatrics》1999,30(4):214-217
Over a period of ten years, a boy had several episodes of coma, lasting three to five days. Each episode was preceded by hemiparesis or paresthesias, aphasia, headaches and behavioural changes, with subsequent loss of consciousness. Partial seizures occurred during the first episode. A history of migraine or hemiplegic migraine was found in several members of the family. Linkage to chromosome 1q21-23, where a gene for familial hemiplegic migraine has been mapped, was shown in this family. 相似文献
4.
Bence Gunda Manuele Mine Tibor Kovács Csilla Hornyák Dániel Bereczki György Várallyay Gábor Rudas Marie-Pierre Audrezet Elisabeth Tournier-Lasserve 《Journal of neurology》2014,261(3):500-503
Type IV collagen α1 and α2 chains form heterotrimers that constitute an essential component of basement membranes. Mutations in COL4A1, encoding the α1 chain, cause a multisystem disease with prominent cerebrovascular manifestations, including porencephaly, bleeding-prone cerebral small vessel disease, and intracranial aneurysms. Mutations in COL4A2 have only been reported in a few porencephaly families so far. Herein, we report on a young adult patient with recurrent intracerebral hemorrhage, leukoencephalopathy, intracranial aneurysms, nephropathy, and myopathy associated with a novel COL4A2 mutation. We extensively investigated a 29-year-old male patient with recurrent deep intracerebral hemorrhages causing mild motor and sensory hemisyndromes. Brain MRI showed deep intracerebral hemorrhages of different age, diffuse leukoencephalopathy, multiple cerebral microbleeds and small aneurysms of the carotid siphon bilaterally. Laboratory work-up revealed significant microscopic hematuria and elevation of creatine-kinase. Genetic testing found a de novo glycine mutation within the COL4A2 triple helical domain. The presented case completes the spectrum of cerebral and systemic manifestations of COL4A2 mutations that appears to be very similar to that in COL4A1 mutations. Therefore, we emphasize the importance of screening both COL4A1 and COL4A2 in patients showing recurrent intracerebral hemorrhage of unknown etiology, particularly if associated with leukoencephalopathy. 相似文献
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7.
Joutel A Dodick DD Parisi JE Cecillon M Tournier-Lasserve E Bousser MG 《Annals of neurology》2000,47(3):388-391
CADASIL, an autosomal dominant arteriopathy responsible for stroke and dementia, is caused by strongly stereotyped mutations in the Notch3 gene. We report a patient with a condition strongly suggestive of CADASIL (migraine, stroke, and white matter abnormalities), except that this patient did not have any first-degree relatives with similar symptoms. This patient carried a heterozygous Arg182Cys mutation in the Notch3 gene; this mutation was absent in his two biological parents. These data demonstrate the occurrence of a de novo noninherited mutation in the Notch3 gene, which indicates that CADASIL should not be rejected in the absence of a family history. Therefore, our finding suggests that CADASIL may be more frequent than anticipated. 相似文献
8.
9.
Missense CACNA1A mutation causing episodic ataxia type 2 总被引:3,自引:0,他引:3
Denier C Ducros A Durr A Eymard B Chassande B Tournier-Lasserve E 《Archives of neurology》2001,58(2):292-295
OBJECTIVES: To characterize the nature of CACNA1A mutation in a previously unreported family with episodic ataxia type 2 (EA2) and to better delineate EA2 clinical features. BACKGROUND: Episodic ataxia type 2 is an autosomal dominant disorder characterized by the recurrence of acetazolamide-responsive spells of cerebellar ataxia, usually starting during childhood or adolescence. The mutated gene, CACNA1A, is located on chromosome 19 and encodes the alpha1A subunit voltage-dependent calcium channel. So far, most CACNA1A mutations detected in patients with EA2 have led to a truncated CACNA1A protein, whereas missense mutations cause familial hemiplegic migraine. METHODS: All 47 exons of CACNA1A were screened by a combination of single-strand conformer polymorphism and sequencing analysis. RESULTS: A CACNA1A missense mutation, Glu 1757 Lys, was identified. It was absent in 200 control chromosomes. It is predicted to result in an amino acid substitution at a highly phylogenetically conserved position, within a domain that plays a major role in the function of the channel. CONCLUSIONS: The Glu 1757 Lys missense mutation is likely to be pathogenic, causing episodic ataxia within a family whose phenotype is indistinguishable from EA2 except for a slightly later age of onset. These data strongly suggest that additional work is needed to fully establish genotype/phenotype correlations for CACNA1A mutations. 相似文献
10.
Denier C Labauge P Brunereau L Cavé-Riant F Marchelli F Arnoult M Cecillon M Maciazek J Joutel A Tournier-Lasserve E;Sociéte Française de Neurochirgurgie;Sociéte de Neurochirurgie de Langue Française 《Annals of neurology》2004,55(2):213-220
Cerebral Cavernous Malformations (CCM/OMIM 604214) are vascular malformations causing seizures and cerebral hemorrhages. They occur as a sporadic and autosomal dominant condition, the latter being characterized by the presence of multiple CCM lesions. Stereotyped truncating mutations of KRIT1, the sole CCM gene identified so far, have been identified in CCM1 linked families but the clinical features associated with KRIT1 mutations have not yet been assessed in a large series of patients. We conducted a detailed clinical, neuroradiological and molecular analysis of 64 consecutively recruited CCM families segregating a KRIT1 mutation. Those families included 202 KRIT1 mutation carriers. Among the 202 KRIT1 mutation carriers, 126 individuals were symptomatic and 76 symptom-free. Mean age at clinical onset was 29.7 years (range, 2-72); initial clinical manifestations were seizures in 55% of the cases and cerebral hemorrhages in 32%. Average number of lesions on T2 weighted MRI was 4.9 (+/-7.2) and on gradient echo sequences 19.8 (+/-33.2). Twenty-six mutation carriers harbored only one lesion on T2-weighted MRI, including 4 mutation carriers, aged from 18 to 55 yr-old, who presented only one CCM lesion both on T2-weighted and on highly sensitive gradient echo MRI sequences. Five symptom free mutation carriers, aged from 27 to 48 yr-old, did not have any detectable lesion both on T2WI and gradient echo MRI sequences. Within KRIT1/CCM1 families, both clinical and radiological penetrance are incomplete and age dependent. Importantly for genetic counseling, nearly half of the KRIT1 mutation carriers aged 50 or more are symptom-free. The presence of only one lesion, even when using gradient echo MRI sequences, can be observed in some patients with an hereditary form of the disease. Incomplete neuroradiological penetrance precludes the use of cerebral MRI to firmly establish a non carrier status, even at an adult age and even when using highly sensitive gradient echo MRI. Altogether these data suggest that the hereditary nature of the disorder may be overlooked in some mutation carriers presenting as sporadic cases with a unique lesion. 相似文献