scholarly journals Prevalent Pathogenic Variants of ATP7B in Chinese Patients with Wilson’s Disease: Geographical Distribution and Founder Effect

Genes ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 336
Author(s):  
Guo-Min Yang ◽  
Rou-Min Wang ◽  
Nan Xia ◽  
Zi-Wei Zheng ◽  
Yi Dong ◽  
...  
Keyword(s):  
Geographical Distribution ◽  
Founder Effect ◽  
Wilson’S Disease ◽  
Autosomal Recessive Disorder ◽  
Wilson's Disease ◽  
Chinese Patients ◽  
Mainland Chinese ◽  
Pathogenic Variants ◽  
Specific Distribution ◽  
The Common

Wilson’s disease (WD) is an autosomal recessive disorder caused by ATP7B pathogenic variants. This study aimed to show the geographical distribution and haplotype spectrum of three prevalent pathogenic variants (p.R778L, p.P992L, p.T935M) in mainland Chinese population and clarify whether the founder effect may account for their origins. We firstly summarized the frequency and geographical distribution of p.R778L, p.P992L and p.T935M in 715 WD patients. Then, to construct haplotypes associated with the three variants, Sanger sequencing and microsatellite typing at three dinucleotide-repeat markers (D13S314, D13S301, D13S316) flanking the ATP7B gene were performed in 102 WD families. An obvious regional-specific distribution feature was found in p.T935M. Linkage disequilibrium at the three markers was shown in all the three variants and we found the common haplotypes specific for p.R778L, p.P992L and p.T935M respectively, represented successively by 10-7-7, 10-9-5 and 12-4-8, which all exhibited great significance vs. the control chromosomes (p < 0.01). Meanwhile, haplotypes for the three variants differed from the studies in other regions to some extent. The common haplotypes we found indicate that three prevalent pathogenic variants emerge due to the founder effect. Furthermore, the study contributes to expand our knowledge of the genetic diversity of WD from a cross-regional perspective.

scholarly journals Novel mutations found in the ATP7B gene in Chinese patients with Wilson's disease

2019 ◽  
Vol 7 (5) ◽  
pp. e649
Author(s):  
Zhiling Qian ◽  
Xiongwei Cui ◽  
Yunli Huang ◽  
Yanmin Liu ◽  
Ning Li ◽  
...  
Keyword(s):  
Wilson’S Disease ◽  
Wilson's Disease ◽  
Chinese Patients ◽  
Atp7b Gene ◽  
Novel Mutations

scholarly journals Association of variants in the CP, ATOX1 and COMMD1 genes with Wilson disease symptoms in Latvia

2019 ◽  
Vol 22 (2) ◽  
pp. 37-42
Author(s):  
A Zarina ◽  
I Tolmane ◽  
Z Krumina ◽  
AI Tutane ◽  
L Gailite
Keyword(s):  
Wilson’S Disease ◽  
Clinical Symptoms ◽  
Direct Sequencing ◽  
Clinical Manifestations ◽  
Copper Metabolism ◽  
Wilson's Disease ◽  
Allelic Variants ◽  
Functional Changes ◽  
Pathogenic Variants ◽  
Genotype Frequencies

AbstractWilson’s disease (WD) is a copper metabolism disorder, caused by allelic variants in the ATP7B gene. Wilson’s disease can be diagnosed by clinical symptoms, increased copper and decreased cerulopasmin levels, which could all also be by other genetic variants beyond the ATP7B gene, e.g., disturbed ceruloplasmin biosynthesis can be caused by pathogenic allelic variants of the CP gene. Copper metabolism in the organism is affected by several molecules, but pathogenic variants and related phenotypes are described with COMMD1 and ATOX1 genes. The aim of the study was to test other genes, CP, ATOX1 and COMMD1, for possible influence to the manifestation of WD. Patients were enrolled on the basis of Leipzig’s diagnostic criteria, 64 unrelated patients with confirmed WD. Direct sequencing of promoter region of the CP gene and ATOX1 and COMMD1 gene exons was conducted. Statistically significant differences were found between the two variants in the CP gene and the ATP7B genotype (rs66508328 variant AA genotype and the rs11708215 variant GG genotype) were more common in WD patients with an unconfirmed ATP7B genotype. One allelic (intronic) variant was found in the ATOX1 gene without causing the functional changes of the gene. Three allelic variants were identified in the COMMD1 gene. No statistically significant differences were found between allele and genotype frequencies and the first clinical manifestations of WD. Different variants of the CP gene contributed to a WD-like phenotype in clinically confirmed WD patients with neurological symptoms and without identified pathogenic variants in the ATP7B gene. Allelic variants in the ATOX1 and COMMD1 genes do not modify the clinical manifestation of WD in Latvian patients. (266 words)

Whole-exome sequencing identifies novel pathogenic variants across theATP7Bgene and some modifiers of Wilson's disease phenotype

2018 ◽  
Vol 39 (1) ◽  
pp. 177-186 ◽  
Author(s):  
Anna Kluska ◽  
Maria Kulecka ◽  
Tomasz Litwin ◽  
Karolina Dziezyc ◽  
Aneta Balabas ◽  
...  
Keyword(s):  
Exome Sequencing ◽  
Whole Exome Sequencing ◽  
Wilson’S Disease ◽  
Wilson's Disease ◽  
Disease Phenotype ◽  
Pathogenic Variants ◽  
Whole Exome

scholarly journals Spectrum and Classification of ATP7B Variants in a Large Cohort of Chinese Patients with Wilson's Disease Guides Genetic Diagnosis

Theranostics ◽  
2016 ◽  
Vol 6 (5) ◽  
pp. 638-649 ◽  
Author(s):  
Yi Dong ◽  
Wang Ni ◽  
Wan-Jin Chen ◽  
Bo Wan ◽  
Gui-Xian Zhao ◽  
...  
Keyword(s):  
Wilson’S Disease ◽  
Genetic Diagnosis ◽  
Wilson's Disease ◽  
Large Cohort ◽  
Chinese Patients

scholarly journals Report of Two Novel Mutations in Indian Patients with Rothmund–Thomson Syndrome

2019 ◽  
Vol 08 (03) ◽  
pp. 163-167
Author(s):  
Sakshi Yadav ◽  
Seema Thakur ◽  
Juergen Kohlhase ◽  
Neetu Bhari ◽  
Madhulika Kabra ◽  
...  
Keyword(s):  
Autosomal Recessive ◽  
Supportive Therapy ◽  
Failure To Thrive ◽  
Autosomal Recessive Disorder ◽  
Skin Lesions ◽  
Poor Growth ◽  
Pathogenic Variants ◽  
Specific Distribution ◽  
Novel Variants ◽  
Rothmund Thomson Syndrome

AbstractRothmund–Thomson syndrome (RTS) is a rare autosomal recessive disorder caused by mutations in RECQL4 and has characteristic clinical features. We report two unrelated phenotypically diverse patients (cases 1 and 2) with RTS having novel variants in RECQL4 gene. Case-1 was evaluated for poor growth and recurrent fractures and skin lesions. Case-2 presented at 4 months with failure to thrive and radial ray defect and developed poikilodermatous skin lesions after infancy. Both cases were confirmed to have homozygous pathogenic variants in RECQL4. Both patients have normal intellect and are on supportive therapy. The presence of characteristic poikiloderma lesions with specific distribution and skeletal anomalies in a patient with proportionate short stature is a clue toward the diagnosis of RTS.

scholarly journals CT hypodensity on cerebral white matter in Wilson's disease

1991 ◽  
Vol 49 (2) ◽  
pp. 211-214 ◽  
Author(s):  
Laura B. Jardim ◽  
Aníbal Carneiro ◽  
Suzana Hansel ◽  
Carlos R. M. Rieder ◽  
Roberto Giugliani
Keyword(s):  
White Matter ◽  
Ct Scan ◽  
Wilson’S Disease ◽  
Cerebellar Atrophy ◽  
Copper Metabolism ◽  
Autosomal Recessive Disorder ◽  
Wilson's Disease ◽  
Subcortical White Matter ◽  
Cortical Atrophy ◽  
Cerebral White Matter

Wilson's disease in an autosomal recessive disorder of copper metabolism where systemic manifestations are secondary to thei accumulation of copper in hepatic, nervous and other tissues. In CNS, the structural lesions most commonly found by CT scan are ventricular dilatation, cortical atrophy, basal ganglia hyperdensities, and brainstem and cerebellar atrophy. Degenerative changes of cerebral white matter seen on early anatomo-pathologic studies, but were almost never found on CT scan from recently described patients. We report a case of Wilson's disease with an unusually rapid deterioration where asymmetric low-densities in the subcortical white matter were disclosed by CT scan.

Wilson’s disease

Open Medicine ◽  
2010 ◽  
Vol 5 (2) ◽  
pp. 145-149
Author(s):  
Mehmet Hursitoglu ◽  
Mehmet Cikrikcioglu ◽  
Ahmet Danalioglu ◽  
Tufan Tukek
Keyword(s):  
Wilson’S Disease ◽  
Clinical Manifestations ◽  
Copper Metabolism ◽  
Autosomal Recessive Disorder ◽  
Wilson's Disease ◽  
Copper Accumulation ◽  
Genetic Studies ◽  
Initiation Of Therapy ◽  
The Brain ◽  
Underlying Pathophysiology

AbstractWilson’s disease is an autosomal-recessive disorder caused by mutation in the ATP7B gene. Absent or reduced function of ATP7B protein leads to decreased hepatocellular excretion of copper into bile. Subsequent copper accumulation, first in the liver but ultimately in the brain and other tissues, produces different clinical manifestations such as hepatic, neurological, hematological, ophthalmological, and psychiatric problems. Diagnosis is based on clinical suspicion, parameters of copper metabolism, ophthalmic examination (Kayser-Fleischer rings) and a liver biopsy. Genetic studies are of limited use. Early diagnosis and initiation of therapy with chelators and therapeutic plasma exchange therapy are essential for prognosis. Liver transplantation corrects the underlying pathophysiology and can be lifesaving in fulminant hepatic failure. Screening of siblings and 1st degree relatives of the patients is also important.

scholarly journals A service for patients with Wilson's disease

1988 ◽  
Vol 12 (10) ◽  
pp. 426-427
Author(s):  
T. R. Dening ◽  
G. E. Berrios ◽  
C. A. Seymour
Keyword(s):  
Systematic Study ◽  
Autosomal Recessive ◽  
Chelating Agents ◽  
Wilson’S Disease ◽  
Copper Metabolism ◽  
Autosomal Recessive Disorder ◽  
Wilson's Disease ◽  
The Uk

Wilson's disease (WD) is an autosomal recessive disorder of copper metabolism with an incidence of about 30 per million (i.e. fewer than 2,000 in the UK). Nevertheless, it is important for two main reasons: its manifestations are protean and may lead it to present to a range of specialists; and its otherwise lethal course can be halted by treatment with chelating agents such as penicillamine and trientine. Published cases and systematic study have shown that neuropsychiatric symptomatology is important in a high proportion. In fact, about one-fifth either present psychiatrically or are at least seen by a psychiatrist before WD is diagnosed.

scholarly journals Wilson's disease: A rare autosomal recessive disorder of copper metabolism

2014 ◽  
Vol 4 (2) ◽  
pp. 51-53
Author(s):  
RR Pradhan ◽  
J Gupta
Keyword(s):  
Autosomal Recessive ◽  
Wilson’S Disease ◽  
Clinical Manifestations ◽  
Copper Toxicity ◽  
Copper Metabolism ◽  
Autosomal Recessive Disorder ◽  
Wilson's Disease ◽  
Medical College ◽  
Ocular Manifestations ◽  
Membrane Bound

Wilson’s disease is an autosomal recessive disorder caused by mutations in the ATP7B gene, a membrane-bound copper-transporting ATPase. Clinical manifestations are caused by copper toxicity and primarily involve the liver, the brain and the eye. Because effective treatment is available, it is important to make this diagnosis early. We report a patient who developed features of neurological and ocular manifestations: incoordination and tremor and blurring of vision with presence of Kayser-Fleischer ring circling the cornea but no signs of hepatic dysfunction. DOI: http://dx.doi.org/10.3126/jcmc.v4i2.10866 Journal of Chitwan Medical College 2014; 4(2): 51-54

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