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A special case of recurrent gross hematuria: Answers. Pediatr Nephrol 2017; 32:273-275. [PMID: 26650869 DOI: 10.1007/s00467-015-3265-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2015] [Revised: 10/19/2015] [Accepted: 10/19/2015] [Indexed: 10/22/2022]
Abstract
Wilson's disease (WD) is an autosomal recessive disorder, and has a variety of presentations. We reported a case of 9-year-old girl who presented with a history of recurrent gross hematuria, renal histological changes of IgA nephropathy, and finally had been confirmed to be Wilson's disease-associated IgA nephropathy.
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Trindade MC, Bittencourt T, Lorenzi-Filho G, Alves RC, de Andrade DC, Fonoff ET, Bor-Seng-Shu E, Machado AA, Teixeira MJ, Barbosa ER, Tribl GG. Restless legs syndrome in Wilson's disease: frequency, characteristics, and mimics. Acta Neurol Scand 2017; 135:211-218. [PMID: 26940540 DOI: 10.1111/ane.12585] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/18/2016] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To determine characteristics, clinical significance, frequency, and mimics of restless legs syndrome (RLS) in a cohort of Wilson's disease (WD, n = 42/f = 18), compared to healthy, matched controls. MATERIALS AND METHODS Structured clinical interviews (patients and caregiving family members), repeated neurological examinations (afternoon and presleep), comprehensive laboratory tests, WD-, RLS-, and sleep-specific rating scales, and video-polysomnography. RESULTS Thirteen patients with WD (13/42 = 31.0%) clearly fulfilled the five diagnostic criteria of RLS; in eight patients (19.1%), the burden of RLS was clinically significant. The RLS was of moderate severity, equally distributed among sexes, manifested mainly in the evening and before falling asleep, and had developed mostly after clinical manifestation of WD (time elapsed 10.2 ± 14.5 years), still at a young mean age (27.5 ± 11.5 years). The known RLS-associated features were absent (normal iron and kidney parameters) or rare (positive family history, polyneuropathy). Compared to WD patients without RLS, patients with RLS were significantly elder and had suffered longer from WD. WD-specific RLS mimics as well as RLS confounding motor comorbidities (dystonia, tremor, chorea) were frequent and a diagnostic challenge; in difficult cases, the differentiation was reached by clinical observation of the motor behavior in the evening or at nighttime. CONCLUSION RLS was frequent in this cohort of WD and might be causally related to WD. RLS should be included in the diagnostic work-up of WD. In complex motor disorders, differential diagnosis of RLS might require evening/nighttime examination and video-polysomnography. In WD patients with a clinically significant RLS, treatment with dopaminergic substances may be considered.
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Affiliation(s)
- M. C. Trindade
- Division of Neurology and Neurosurgery; Hospital das Clinicas; University of Sao Paulo School of Medicine; Sao Paulo Brazil
| | - T. Bittencourt
- Sleep Laboratory; Pulmonary Division; InCor; University of Sao Paulo School of Medicine; Sao Paulo Brazil
| | - G. Lorenzi-Filho
- Sleep Laboratory; Pulmonary Division; InCor; University of Sao Paulo School of Medicine; Sao Paulo Brazil
| | - R. C. Alves
- Division of Neurology and Neurosurgery; Hospital das Clinicas; University of Sao Paulo School of Medicine; Sao Paulo Brazil
| | - D. C. de Andrade
- Division of Neurology and Neurosurgery; Hospital das Clinicas; University of Sao Paulo School of Medicine; Sao Paulo Brazil
| | - E. T. Fonoff
- Division of Neurology and Neurosurgery; Hospital das Clinicas; University of Sao Paulo School of Medicine; Sao Paulo Brazil
| | - E. Bor-Seng-Shu
- Division of Neurology and Neurosurgery; Hospital das Clinicas; University of Sao Paulo School of Medicine; Sao Paulo Brazil
| | - A. A. Machado
- Division of Neurology and Neurosurgery; Hospital das Clinicas; University of Sao Paulo School of Medicine; Sao Paulo Brazil
| | - M. J. Teixeira
- Division of Neurology and Neurosurgery; Hospital das Clinicas; University of Sao Paulo School of Medicine; Sao Paulo Brazil
| | - E. R. Barbosa
- Division of Neurology and Neurosurgery; Hospital das Clinicas; University of Sao Paulo School of Medicine; Sao Paulo Brazil
| | - G. G. Tribl
- Division of Neurology and Neurosurgery; Hospital das Clinicas; University of Sao Paulo School of Medicine; Sao Paulo Brazil
- Sleep Laboratory; Pulmonary Division; InCor; University of Sao Paulo School of Medicine; Sao Paulo Brazil
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Abstract
Wilson disease (WD) is an autosomal-recessive disorder of hepatocellular copper deposition caused by pathogenic variants in the copper-transporting gene, ATP7B. Early detection and treatment are critical to prevent lifelong neuropsychiatric, hepatic, and systemic disabilities. Due to the marked heterogeneity in age of onset and clinical presentation, the diagnosis of Wilson disease remains challenging to physicians today. Direct sequencing of the ATP7B gene is the most sensitive and widely used confirmatory testing method, and concurrent biochemical testing improves diagnostic accuracy. More than 600 pathogenic variants in ATP7B have been identified, with single-nucleotide missense and nonsense mutations being the most common, followed by insertions/deletions, and, rarely, splice site mutations. The prevalence of Wilson disease varies by geographic region, with higher frequency of certain mutations occurring in specific ethnic groups. Wilson disease has poor genotype-phenotype correlation, although a few possible modifiers have been proposed. Improving molecular genetic studies continue to advance our understanding of the pathogenesis, diagnosis, and screening for Wilson disease.
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Affiliation(s)
- Irene J Chang
- Division of Medical Genetics, Department of Medicine, University of Washington School of Medicine, Seattle, WA, USA
| | - Si Houn Hahn
- Division of Genetic Medicine, Department of Pediatrics, University of Washington School of Medicine, Seattle Children's Hospital, Seattle, WA, USA.
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Cai G, Huang X, Ye Q, Xiong W, Duan Q. Wilson's disease patient with iron metabolism discharge barriers: A case report. Exp Ther Med 2017; 13:349-351. [DOI: 10.3892/etm.2016.3928] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 10/18/2016] [Indexed: 11/05/2022] Open
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Jung S, Whiteaker JR, Zhao L, Yoo HW, Paulovich AG, Hahn SH. Quantification of ATP7B Protein in Dried Blood Spots by Peptide Immuno-SRM as a Potential Screen for Wilson's Disease. J Proteome Res 2016; 16:862-871. [PMID: 27935710 DOI: 10.1021/acs.jproteome.6b00828] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Wilson's Disease (WD), a copper transport disorder caused by a genetic defect in the ATP7B gene, has been a long time strong candidate for newborn screening (NBS), since early interventions can give better results by preventing irreversible neurological disability or liver cirrhosis. Several previous pilot studies measuring ceruloplasmin (CP) in infants or children showed that this marker alone was insufficient to meet the universal screening for WD. WD results from mutations that cause absent or markedly diminished levels of ATP7B. Therefore, ATP7B could serve as a marker for the screening of WD, if the protein can be detected from dried blood spots (DBS). This study demonstrates that the immuno-SRM platform can quantify ATP7B in DBS in the picomolar range, and that the assay readily distinguishes affected cases from normal controls (p < 0.0001). The assay precision was <10% CV, and the protein was stable for a week in DBS at room temperature. These promising proof-of-concept data open up the possibility of screening WD in newborns and the potential for a multiplexed assay for screening a variety of congenital disorders using proteins as biomarkers in DBS.
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Affiliation(s)
- Sunhee Jung
- Seattle Children's Hospital Research Institute , Seattle, Washington 98101, United States
| | - Jeffrey R Whiteaker
- Fred Hutchison Cancer Research Center , Seattle, Washington 98109, United States
| | - Lei Zhao
- Fred Hutchison Cancer Research Center , Seattle, Washington 98109, United States
| | - Han-Wook Yoo
- Asan Medical Center, Ulsan University College of Medicine , Seoul 05505, South Korea
| | - Amanda G Paulovich
- Fred Hutchison Cancer Research Center , Seattle, Washington 98109, United States
| | - Si Houn Hahn
- Seattle Children's Hospital Research Institute , Seattle, Washington 98101, United States.,Department of Pediatrics, University of Washington School of Medicine , Seattle, Washington 98195, United States
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Kumar V, Kalita J, Bora HK, Misra UK. Temporal kinetics of organ damage in copper toxicity: A histopathological correlation in rat model. Regul Toxicol Pharmacol 2016; 81:372-380. [DOI: 10.1016/j.yrtph.2016.09.025] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 08/25/2016] [Accepted: 09/20/2016] [Indexed: 01/17/2023]
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Heusinkveld HJ, Wahle T, Campbell A, Westerink RHS, Tran L, Johnston H, Stone V, Cassee FR, Schins RPF. Neurodegenerative and neurological disorders by small inhaled particles. Neurotoxicology 2016; 56:94-106. [PMID: 27448464 DOI: 10.1016/j.neuro.2016.07.007] [Citation(s) in RCA: 197] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 07/18/2016] [Accepted: 07/18/2016] [Indexed: 12/17/2022]
Abstract
The world's population is steadily ageing and as a result, health conditions related to ageing, such as dementia, have become a major public health concern. In 2001, it was estimated that there were almost 5 million Europeans suffering from Alzheimer's disease (AD) and this figure has been projected to almost double by 2040. About 40% of people over 85 suffer from AD, and another 10% from Parkinson's disease (PD). The majority of AD and PD cases are of sporadic origin and environmental factors play an important role in the aetiology. Epidemiological research identified airborne particulate matter (PM) as one of the environmental factors potentially involved in AD and PD pathogenesis. Also, cumulating evidence demonstrates that the smallest sizes of the inhalable fraction of ambient particulate matter, also referred to as ultrafine particulate matter or nano-sized particles, are capable of inducing effects beyond the respiratory system. Translocation of very small particles via the olfactory epithelium in the nose or via uptake into the circulation has been demonstrated through experimental rodent studies with engineered nanoparticles. Outdoor air pollution has been linked to several health effects including oxidative stress and neuroinflammation that may ultimately result in neurodegeneration and cognitive impairment. This review aims to evaluate the relationship between exposure to inhaled ambient particles and neurodegeneration.
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Affiliation(s)
- Harm J Heusinkveld
- IUF-Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany; National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands, The Netherlands; AIR pollutants and Brain Aging research Group.
| | - Tina Wahle
- IUF-Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany; AIR pollutants and Brain Aging research Group
| | - Arezoo Campbell
- College of Pharmacy, Western University of Health Sciences, Pomona, CA, USA
| | - Remco H S Westerink
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Lang Tran
- Institute of Occupational Medicine, Edinburgh, UK
| | | | - Vicki Stone
- Heriot-Watt University, School of Life Sciences, Edinburgh, UK
| | - Flemming R Cassee
- National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands, The Netherlands; Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands; AIR pollutants and Brain Aging research Group
| | - Roel P F Schins
- IUF-Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany; AIR pollutants and Brain Aging research Group
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Genome-wide analysis of DNA methylation during antagonism of DMOG to MnCl2-induced cytotoxicity in the mouse substantia nigra. Sci Rep 2016; 6:28933. [PMID: 27380887 PMCID: PMC4933877 DOI: 10.1038/srep28933] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 06/13/2016] [Indexed: 01/09/2023] Open
Abstract
Exposure to excessive manganese (Mn) causes manganism, a progressive neurodegenerative disorder similar to idiopathic Parkinson’s disease (IPD). The detailed mechanisms of Mn neurotoxicity in nerve cells, especially in dopaminergic neurons are not yet fully understood. Meanwhile, it is unknown whether there exists a potential antagonist or effective drug for treating neuron damage in manganism. In the present study, we report the discovery of an HIF prolyl-hydroxylase inhibitor, DMOG [N-(2-Methoxy-2-oxoacetyl) glycine methyl ester], that can partially inhibit manganese toxicity not only in the neuroblastoma cell line SH-SY5Y in vitro but also in a mouse model in vivo. A genome-wide methylation DNA analysis was performed using microarray hybridization. Intriguingly, DNA methylation in the promoter region of 226 genes was found to be regulated by MnCl2, while the methylation effects of MnCl2 could be restored with combinatorial DMOG treatment. Furthermore, we found that genes with converted promoter methylation during DMOG antagonism were associated across several categories of molecular function, including mitochondria integrity maintain, cell cycle and DNA damage response, and ion transportation. Collectively, our results serve as the basis of a mechanism analysis of neuron damage in manganism and may supply possible gene targets for clinical therapy.
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Chandhok G, Horvath J, Aggarwal A, Bhatt M, Zibert A, Schmidt HHJ. Functional analysis and drug response to zinc and D-penicillamine in stable ATP7B mutant hepatic cell lines. World J Gastroenterol 2016; 22:4109-4119. [PMID: 27122662 PMCID: PMC4837429 DOI: 10.3748/wjg.v22.i16.4109] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Revised: 01/24/2016] [Accepted: 02/22/2016] [Indexed: 02/06/2023] Open
Abstract
AIM: To study the effect of anti-copper treatment for survival of hepatic cells expressing different ATP7B mutations in cell culture.
METHODS: The most common Wilson disease (WD) mutations p.H1069Q, p.R778L and p.C271*, found in the ATP7B gene encoding a liver copper transporter, were studied. The mutations represent major genotypes of the United States and Europe, China, and India, respectively. A human hepatoma cell line previously established to carry a knockout of ATP7B was used to stably express WD mutants. mRNA and protein expression of mutant ATP7B, survival of cells, apoptosis, and protein trafficking were determined.
RESULTS: Low temperature increased ATP7B protein expression in several mutants. Intracellular ATP7B localization was significantly impaired in the mutants. Mutants were classified as high, moderate, and no survival based on their viability on exposure to toxic copper. Survival of mutant p.H1069Q and to a lesser extent p.C271* improved by D-penicillamine (DPA) treatment, while mutant p.R778L showed a pronounced response to zinc (Zn) treatment. Overall, DPA treatment resulted in higher cell survival as compared to Zn treatment; however, only combined Zn + DPA treatment fully restored cell viability.
CONCLUSION: The data indicate that the basic impact of a genotype might be characterized by analysis of mutant hepatic cell lines.
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Cabras T, Sanna M, Manconi B, Fanni D, Demelia L, Sorbello O, Iavarone F, Castagnola M, Faa G, Messana I. Proteomic investigation of whole saliva in Wilson's disease. J Proteomics 2015; 128:154-63. [PMID: 26254010 DOI: 10.1016/j.jprot.2015.07.033] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 07/20/2015] [Accepted: 07/28/2015] [Indexed: 01/20/2023]
Abstract
Wilson's disease is a rare inherited disorder of copper metabolism, manifesting hepatic, neurological and psychiatric symptoms. Early diagnosis is often unfeasible and a unique diagnostic test is currently inapplicable. We performed the qualitative/quantitative characterization of the salivary proteome/peptidome of 32 Wilson's disease patients by an integrated top-down/bottom-up approach. Patients exhibited significant higher levels of S100A9 and S100A8 proteoforms, and their oxidized forms with respect to controls. Oxidation occurred on methionine and tryptophan residues, and on the unique cysteine residue, in position 42 in S100A8, and 3 in S100A9, that generated glutathionylated, cysteinylated, sulfinic, sulfonic, and disulfide dimeric forms. Wilson's disease patient saliva showed high levels of two new fragments of the polymeric immunoglobulin receptor, and of α-defensins 2 and 4. Overall, the salivary proteome of Wilson's disease patients reflected oxidative stress and inflammatory conditions characteristic of the pathology, highlighting differences that could be useful clues of disease exacerbation.
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Affiliation(s)
- Tiziana Cabras
- Department of Life and Environmental Sciences, Biomedical section, University of Cagliari, Monserrato Campus 09042, Monserrato, CA, Italy.
| | - Monica Sanna
- Department of Life and Environmental Sciences, Biomedical section, University of Cagliari, Monserrato Campus 09042, Monserrato, CA, Italy
| | - Barbara Manconi
- Department of Life and Environmental Sciences, Biomedical section, University of Cagliari, Monserrato Campus 09042, Monserrato, CA, Italy
| | - Daniela Fanni
- Department of Surgery Sciences, University of Cagliari, Monserrato Campus 09042, Monserrato, CA, Italy
| | - Luigi Demelia
- Department of Medical Sciences "M. Aresu", AOU, University of Cagliari, Monserrato Campus 09042, Monserrato, CA, Italy
| | - Orazio Sorbello
- Department of Medical Sciences "M. Aresu", AOU, University of Cagliari, Monserrato Campus 09042, Monserrato, CA, Italy
| | - Federica Iavarone
- Biochemistry and Clinical Biochemistry Institute, Medicine Faculty, Catholic University of Rome, L.go F. Vito 1, 00168 Rome, Italy
| | - Massimo Castagnola
- Biochemistry and Clinical Biochemistry Institute, Medicine Faculty, Catholic University of Rome, L.go F. Vito 1, 00168 Rome, Italy; Institute of Chemistry of the Molecular Recognition CNR, L.go F. Vito 1, 00168 Rome, Italy
| | - Gavino Faa
- Department of Surgery Sciences, University of Cagliari, Monserrato Campus 09042, Monserrato, CA, Italy
| | - Irene Messana
- Department of Life and Environmental Sciences, Biomedical section, University of Cagliari, Monserrato Campus 09042, Monserrato, CA, Italy
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