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Salmon MK, Cohen WG, Hu F, Aydin A, Coskun AK, Schilsky M, Doty RL. Taste and smell function in Wilson's disease. J Neurol Sci 2024; 459:122949. [PMID: 38493734 DOI: 10.1016/j.jns.2024.122949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 02/20/2024] [Accepted: 03/04/2024] [Indexed: 03/19/2024]
Abstract
OBJECTIVE Wilson's disease (WD) is a metabolic disorder associated with abnormal copper metabolism that results in hepatic, psychiatric, and neurologic symptoms. No investigation of taste function has been made in patients with WD, although olfactory dysfunction has been evaluated. METHODS Quantitative taste and smell test scores of 29 WD patients were compared to those of 790 healthy controls. Taste was measured using the 53-item Waterless Empirical Taste Test (WETT®) and smell using the 40-item revised University of Pennsylvania Smell Identification Test (R-UPSIT®). Multiple linear regression analysis controlled for age and sex. RESULTS Average WETT® scores did not differ meaningfully between WD and control subjects (respective medians & IQRs = 32 [28-42] & 34 [27-41]); linear regression coefficient = 1.19, 95% CI [-0.81, 3.19], p = 0.242). In contrast, WD was associated with significantly reduced olfactory function [respective median (IQR) R-UPSIT® scores = 35 (33-37) vs. 37 (35-38); adjusted linear regression coefficient = -1.59, 95% CI [-2.34, -0.833]; p < 0.001)]. Neither olfaction nor taste were influenced by WD symptom subtype [23 (79.3%) were hepatic-predominant; 6 (20.7%) neurologic predominant]; R-UPSIT®, p = 0.774; WETT®, p = 0.912). No effects of primary medication or years since diagnosis (R-UPSIT®, p = 0.147; WETT®, p = 0.935) were found. Weak correlations were present between R-UPSIT® and WETT® scores for both control (r=0.187, p < 0.0001) and WD (r=0.237) subjects, although the latter correlation did not reach the 0.05 α level (p = 0.084). CONCLUSION Although WD negatively impacts smell function, taste is spared. Research is needed to understand the pathophysiologic mechanisms responsible for this divergence.
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Affiliation(s)
- Mandy K Salmon
- Department of Otorhinolaryngology- Head and Neck Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - William G Cohen
- Department of Otorhinolaryngology- Head and Neck Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Fengling Hu
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Adem Aydin
- Department of Medicine and Surgery, Yale University Medical Center, New Haven, CT, USA
| | - Ayse K Coskun
- Department of Medicine and Surgery, Yale University Medical Center, New Haven, CT, USA
| | - Michael Schilsky
- Department of Medicine and Surgery, Yale University Medical Center, New Haven, CT, USA
| | - Richard L Doty
- Department of Otorhinolaryngology- Head and Neck Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Smell and Taste Center, Department of Otorhinolaryngology- Head and Neck Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
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Bozic M, Svetel M, Svetel M. Intraocular pressure in patients suffering from Wilson's disease. Eur J Ophthalmol 2024:11206721241229771. [PMID: 38304981 DOI: 10.1177/11206721241229771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
PURPOSE The purpose of this study was to evaluate intraocular pressure (IOP) levels in patients suffering from Wilsons disease. METHODS In observational, cross-sectional, non-interventional study, IOP was measured by applanation tonometry in 52 patients with Wilson's disease (WD), and compared to 52 healthy controls (HC). RESULTS Patients with Wilsons disease had significantly lower IOPs, compared to control group (CG) (13.20 ± 2.5 versus 14.98 ± 2.0, p < .000, t test). CONCLUSIONS We found that IOP is significantly lower in patients with WD.
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Affiliation(s)
- Marija Bozic
- University of Belgrade, Faculty of Medicine, Belgrade, Serbia
- University Clinical Centre of Serbia, University Eye Hospital, Belgrade, Serbia
| | - Marina Svetel
- University of Belgrade, Faculty of Medicine, Belgrade, Serbia
- University Clinical Centre of Serbia, Neurology Clinic, Belgrade, Serbia
| | - Marko Svetel
- University Clinical Centre of Serbia, University Eye Hospital, Belgrade, Serbia
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Yang X, Wang T, Tang Y, Shao Y, Gao Y, Wu P. Treatment of liver fibrosis in hepatolenticular degeneration with traditional Chinese medicine: systematic review of meta-analysis, network pharmacology and molecular dynamics simulation. Front Med (Lausanne) 2023; 10:1193132. [PMID: 37250630 PMCID: PMC10213944 DOI: 10.3389/fmed.2023.1193132] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 04/18/2023] [Indexed: 05/31/2023] Open
Abstract
Background Traditional Chinese medicine (TCM) is widely used in the clinical treatment of hepatolenticular degeneration (HLD) and liver fibrosis (LF). In the present study, the curative effect was assessed using meta-analysis. The possible mechanism of TCM against LF in HLD was investigated using network pharmacology and molecular dynamics simulation. Methods For literature collection, we searched several databases, including PubMed, Embase, Cochrane Library, Web of Science, Chinese National Knowledge Infrastructure (CNKI), VIP Database for Chinese Technical Periodicals (VIP) and Wan Fang database until February 2023, and the Review Manager 5.3 was used to analyze the data. Network pharmacology and molecular dynamics simulation were used to explore the mechanism of TCM in treating LF in HLD. Results The results of the meta-analysis revealed that the addition of Chinese herbal medicine (CHM) in treating HLD resulted in a higher total clinical effective rate than western medicine alone [RR 1.25, 95% CI (1.09, 1.44), p = 0.002]. It not only has a better effect on liver protection [Alanine aminotransferase: SMD = -1.20, 95% CI (-1.70, -0.70), p < 0.00001; Aspartate aminotransferase: SMD = -1.41, 95% CI (-2.34, -0.49), p = 0.003; Total bilirubin: SMD = -1.70, 95% CI (-3.36, -0.03), p = 0.05] but also had an excellent therapeutic effect on LF through four indexes [Hyaluronic acid: SMD = -1.15, 95% CI (-1.76, -0.53), p = 0.0003; Procollagen peptide III: SMD = -0.72, 95% CI (-1.29, -0.15), p = 0.01; Collagen IV: SMD = -0.69, 95% CI (-1.21, -0.18), p = 0.008; Laminin: SMD = -0.47, 95% CI (-0.95, 0.01), p = 0.06]. Concurrently, the liver stiffness measurement decreased significantly [SMD = -1.06, 95% CI (-1.77, -0.36), p = 0.003]. The results of network pharmacological experiments and molecular dynamics simulation indicate that the three high-frequency TCMs (Rhei Radix Et Rhizoma-Coptidis Rhizoma-Curcumae Longae Rhizoma, DH-HL-JH) primarily act on the core targets (AKT1, SRC, and JUN) via the core components (rhein, quercetin, stigmasterol, and curcumin), regulate the signal pathway (PI3K-Akt, MAPK, EGFR, and VEGF signaling pathways), and play a role of anti-LF. Conclusion Meta-analysis indicates that TCM is beneficial in treating HLD patients and improving LF. The present study successfully predicts the effective components and potential targets and pathways involved in treating LF for the three high-frequency CHMs of DH-HL-JH. The findings of the present study are hoped to provide some evidence support for clinical treatment. Systematic review registration https://www.crd.york.ac.uk/PROSPERO, identifier: CRD42022302374.
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Affiliation(s)
- Xulong Yang
- College of Integrated Traditional Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Tiancheng Wang
- College of Integrated Traditional Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Yiping Tang
- College of Integrated Traditional Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Yawen Shao
- College of Integrated Traditional Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Yaqin Gao
- College of Nursing, Anhui University of Chinese Medicine, Hefei, China
| | - Peng Wu
- College of Integrated Traditional Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
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Nagral A, Mallakmir S, Garg N, Tiwari K, Masih S, Nagral N, Unavane O, Jhaveri A, Phadke S, ArunKumar G, Aggarwal R. Genomic Variations in ATP7B Gene in Indian Patients with Wilson Disease. Indian J Pediatr 2023; 90:240-248. [PMID: 36112267 DOI: 10.1007/s12098-022-04250-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 03/13/2022] [Accepted: 04/05/2022] [Indexed: 01/03/2023]
Abstract
OBJECTIVE To report genotype data of the patients with Wilson disease (WD) hailing from across several parts of India to add to the available spectrum of causative variants in ATP7B gene (ATPase copper transporting beta polypeptide gene) and associated phenotypes in the Indian population. METHODS The entire ATP7B gene was sequenced in 58 patients with WD and additional testing was also done by MLPA to look for intragenic deletions duplications and exome sequencing to rule out genetic variations with similar phenotypic overlap. RESULTS Of all patients, 37 patients had a total of 33 distinct pathogenic variations, including 29 in the exonic regions and 4 at intronic splice sites. Of the variations identified, six were novel. The underlying genomic variations could be identified in nearly two-thirds of the patients by sequencing the entire gene. CONCLUSIONS This study reports the genotype-phenotype data to add to the available spectrum of causative variants in ATP7B gene. The inability to detect a pathogenic variation in some patients and the existence of phenotypic variations in individuals with the same variation suggest that additional factors or genes may play a role in causation of the disease. Further, a marked genetic heterogeneity was found in the study patients, indicating ethnic diversity of the Indian population.
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Affiliation(s)
- Aabha Nagral
- Department of Gastroenterology, Apollo Hospitals, Navi Mumbai, Maharashtra, India. .,Department of Gastroenterology, Jaslok Hospital and Research Center, Mumbai, Maharashtra, India. .,, 7, Snehsagar, Prabhanagar, Prabhadevi, Mumbai, Maharashtra, 400025, India.
| | - Snehal Mallakmir
- Department of Pediatrics, Apollo Hospitals, Navi Mumbai, Maharashtra, India
| | - Nikita Garg
- Department of Gastroenterology, Jaslok Hospital and Research Center, Mumbai, Maharashtra, India
| | - Kritika Tiwari
- Department of Pediatrics, Matushree Gomati Hospital, Mumbai, Maharashtra, India
| | - Suzena Masih
- Department of Medical Genetics, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Nishtha Nagral
- Department of General Medicine, Fortis Hospital, Mulund, Mumbai, Maharashtra, India
| | - Ojas Unavane
- Department of General Medicine, Seth G.S. Medical College and KEM Hospital, Mumbai, Maharashtra, India
| | - Ajay Jhaveri
- Department of Gastroenterology, Jaslok Hospital and Research Center, Mumbai, Maharashtra, India
| | - Shubha Phadke
- Department of Medical Genetics, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | | | - Rakesh Aggarwal
- Department of Gastroenterology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.,Department of Gastroenterology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
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Maryam T, Rana NF, Alshahrani SM, Batool F, Fatima M, Tanweer T, Alrdahe SS, Alanazi YF, Alsharif I, Alaryani FS, Kashif AS, Menaa F. Silymarin Encapsulated Liposomal Formulation: An Effective Treatment Modality against Copper Toxicity Associated Liver Dysfunction and Neurobehavioral Abnormalities in Wistar Rats. Molecules 2023; 28:molecules28031514. [PMID: 36771180 PMCID: PMC9920678 DOI: 10.3390/molecules28031514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 01/21/2023] [Accepted: 01/23/2023] [Indexed: 02/09/2023] Open
Abstract
Wilson's disease causes copper accumulation in the liver and extrahepatic organs. The available therapies aim to lower copper levels by various means. However, a potent drug that can repair the damaged liver and brain tissue is needed. Silymarin has hepatoprotective, antioxidant, and cytoprotective properties. However, poor oral bioavailability reduces its efficacy. In this study, a "thin film hydration method" was used for synthesizing silymarin-encapsulated liposome nanoparticles (SLNPs) and evaluated them against copper toxicity, associated liver dysfunction and neurobehavioral abnormalities in Wistar rats. After copper toxicity induction, serological and behavioral assays were conducted to evaluate treatment approaches. Histological examination of the diseased rats revealed severe hepatocyte necrosis and neuronal vacuolation. These cellular degenerations were mild in rats treated with SLNPs and a combination of zinc and SLNPs (ZSLNPs). SLNPs also decreased liver enzymes and enhanced rats' spatial memory significantly (p = 0.006) in the diseased rats. During forced swim tests, SLNPs treated rats exhibited a 60-s reduction in the immobility period, indicating reduced depression. ZSLNPs were significantly more effective than traditional zinc therapy in decreasing the immobility period (p = 0.0008) and reducing liver enzymes, but not in improving spatial memory. Overall, SLNPs enhanced oral silymarin administration and managed copper toxicity symptoms.
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Affiliation(s)
- Tuba Maryam
- School of Mechanical & Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan
| | - Nosheen Fatima Rana
- School of Mechanical & Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan
- Correspondence: (N.F.R.); (F.M.)
| | - Sultan M. Alshahrani
- Clinical Pharmacy Department, College of Pharmacy, King Khalid University, Abha 61441, Saudi Arabia
| | - Farhat Batool
- School of Mechanical & Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan
| | - Misha Fatima
- School of Mechanical & Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan
| | - Tahreem Tanweer
- School of Mechanical & Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan
| | - Salma Saleh Alrdahe
- Department of Biology, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Yasmene F. Alanazi
- Department of Biochemistry, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Ifat Alsharif
- Department of Biology, Jamoum University College, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Fatima S. Alaryani
- Department of Biology, College of Science, University of Jeddah, Jeddah 21589, Saudi Arabia
| | - Amer Sohail Kashif
- School of Mechanical & Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan
| | - Farid Menaa
- Departments of Internal Medicine and Nanomedicine, California Innovations Corporation, 9, San Diego, CA 92037, USA
- Correspondence: (N.F.R.); (F.M.)
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Hepatic manifestations of systemic disease: an imaging-based review. Pediatr Radiol 2022; 52:852-864. [PMID: 34797394 DOI: 10.1007/s00247-021-05222-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 08/28/2021] [Accepted: 10/05/2021] [Indexed: 10/19/2022]
Abstract
The liver is responsible for many processes that maintain human metabolic homeostasis and can be affected by several pediatric systemic diseases. In this manuscript, we explore key pathological findings and imaging features across multiple modalities of a spectrum of congenital, metabolic and autoimmune disorders. Strengthening the radiologists' knowledge regarding potential hepatic manifestations of these systemic diseases will ultimately lead to improved care for pediatric patients.
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Bayazutdinova GM, Shchagina OA, Karunas AS, Vyalova NV, Sokolov AA, Polyakov AV. Spectrum of Mutations in the ATP7B Gene in Russian Patients with Wilson’s Disease. RUSS J GENET+ 2020. [DOI: 10.1134/s1022795419120020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Ma TJ, Sun GL, Yao F, Yang ZL. Wilson disease associated with immune thrombocytopenia: A case report and review of the literature. World J Clin Cases 2019; 7:2630-2636. [PMID: 31559303 PMCID: PMC6745329 DOI: 10.12998/wjcc.v7.i17.2630] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 06/30/2019] [Accepted: 07/20/2019] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Wilson disease (WD) is a genetic disorder of hepatic copper excretion, leading to copper accumulation in various tissues. The manifestations are quite variable, and hemolytic anemia is the most common hematological presentation. WD associated with thrombocytopenia is very rare.
CASE SUMMARY We report the case of an 11-year-old Chinese girl with WD that was associated with immune thrombocytopenia (ITP). Thrombocytopenia was the initial chief complaint for her to visit a hematologist, and ITP was diagnosed based on the results of a bone marrow biopsy and positive antiplatelet autoantibodies. About two weeks before the thrombocytopenia was found, the patient developed drooling. Tremors developed in her right hand about one week after being diagnosed with ITP, after which she was admitted to our hospital. Further evaluations were performed. Ceruloplasmin was decreased, with an increased level of copper in her 24-h urine excretion. Kayser Fleischer's ring (K-F ring) was positive. The ultrasound showed liver cirrhosis, and brain magnetic resonance imaging showed that the lenticular nucleus, caudate nucleus, and brainstem presented a low signal intensity in T1-weighted images and high signal intensity in T2-weighted images. WD was diagnosed and a genetic analysis was performed. A compound heterozygous mutation in ATP7B was detected; c.2333G>T (p.Arg778Leu) in exon 8 and c.3809A>G (p.Asn1270Ser) in exon 18. The former was inherited from her father and the latter from her mother. However, her parents showed normal liver function and negative K-F rings. Such a compound mutation in a case of WD associated with ITP in children has not been published previously.
CONCLUSION WD can associate with thrombocytopenia but the mechanism is still unclear. We recommend that antiplatelet autoantibodies should be tested in WD patients with thrombocytopenia in future to verify the association.
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Affiliation(s)
- Tian-Jiao Ma
- Department of Pediatrics, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| | - Gui-Lian Sun
- Department of Pediatrics, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| | - Fang Yao
- Department of Pediatrics, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| | - Zhi-Liang Yang
- Department of Pediatrics, The First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
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Wang S, Yu G, Ma Y, Yang Z, Liu Y, Wang J, Chen X. Ratiometric Photoacoustic Nanoprobe for Bioimaging of Cu 2. ACS APPLIED MATERIALS & INTERFACES 2019; 11:1917-1923. [PMID: 30575388 DOI: 10.1021/acsami.8b20113] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Aberrant copper contents implicate numerous diseases including Alzheimer's disease and Wilson's disease. Conventional copper detection technologies are difficult to offer non-invasive and accurate deep tissue detection of copper. Here, we report a photoacoustic (PA) nanoprobe (NRh-IR-NMs) for ratiometric PA imaging of Cu2+. The nanoprobe consists of a selective Cu2+-responsive probe (NRh) as the indicator and a nonresponsive dye (IR) as the internal reference. In the presence of Cu2+, a selective Cu2+-induced structure change of NRh would take place, resulting in the increase of PA signal intensity increment at 716 nm (ΔPA716). However, the ΔPA834 which attributes to IR shows negligible change. Therefore, the ratiometric PA signal (ΔPA716/ΔPA834) could be used as an indicator for Cu2+ detection. This ratiometric PA detection method offers a noninvasive technology with high selectivity and tissue penetration depth, which is a promising tool for deep-tissue detection of Cu2+ in living organisms.
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Affiliation(s)
- Sheng Wang
- Department of Nuclear Medicine, Xijing Hospital , Fourth Military Medical University , Xi'an 710032 , China
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering , National Institutes of Health , Bethesda , Maryland 20892 , United States
| | - Guocan Yu
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering , National Institutes of Health , Bethesda , Maryland 20892 , United States
| | - Ying Ma
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering , National Institutes of Health , Bethesda , Maryland 20892 , United States
| | - Zhen Yang
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering , National Institutes of Health , Bethesda , Maryland 20892 , United States
| | - Yi Liu
- School of Engineering , China Pharmaceutical University , Nanjing 210009 , China
| | - Jing Wang
- Department of Nuclear Medicine, Xijing Hospital , Fourth Military Medical University , Xi'an 710032 , China
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering , National Institutes of Health , Bethesda , Maryland 20892 , United States
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Barca A, Ippati S, Urso E, Vetrugno C, Storelli C, Maffia M, Romano A, Verri T. Carnosine modulates the Sp1-Slc31a1/Ctr1 copper-sensing system and influences copper homeostasis in murine CNS-derived cells. Am J Physiol Cell Physiol 2018; 316:C235-C245. [PMID: 30485136 DOI: 10.1152/ajpcell.00106.2018] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Carnosine (CAR) is an endogenous dipeptide physiologically present in excitable tissues, such as central nervous system (CNS) and muscle. CAR is acknowledged as a substrate involved in many homeostatic pathways and mechanisms and, due to its biochemical properties, as a molecule intertwined with the homeostasis of heavy metals such as copper (Cu). In CNS, Cu excess and dysregulation imply oxidative stress, free-radical production, and functional impairment leading to neurodegeneration. Here, we report that CAR intercepts the regulatory routes of Cu homeostasis in nervous cells and tissues. Specifically, in a murine neuron-derived cell model, i.e., the B104 neuroblastoma cells, extracellular CAR exposure up to 24 h influenced intracellular Cu entry and affected (downregulated) the key Cu-sensing system, consisting of the gene coding for the Slc31a1 transmembrane Cu importer (alias Ctr1), and the gene coding for the Cu-responsive transcription factor Sp1 ( Sp1). Also, CAR exposure upregulated CAR biosynthesis ( Carns1), extracellular degradation ( Cndp1), and transport ( Slc15a4, alias Pht1) genes and elicited CAR intracellular accumulation, contributing to the outline of functional association between CAR and Cu within the cell. Interestingly, the same gene modulation scheme acting in vitro operates in vivo in brains of mice undergoing dietary administration of CAR in drinking water for 2 wk. Overall, our findings describe for the first time a regulatory interaction between CAR and Cu pathways in CNS and indicate CAR as a novel active molecule within the network of ligands and chaperones that physiologically regulate Cu homeostasis.
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Affiliation(s)
- Amilcare Barca
- Laboratory of General Physiology, Department of Biological and Environmental Sciences and Technologies, University of Salento , Lecce , Italy
| | - Stefania Ippati
- Laboratory of General Physiology, Department of Biological and Environmental Sciences and Technologies, University of Salento , Lecce , Italy
| | - Emanuela Urso
- Laboratory of General Physiology, Department of Biological and Environmental Sciences and Technologies, University of Salento , Lecce , Italy
| | - Carla Vetrugno
- Laboratory of General Physiology, Department of Biological and Environmental Sciences and Technologies, University of Salento , Lecce , Italy
| | - Carlo Storelli
- Laboratory of General Physiology, Department of Biological and Environmental Sciences and Technologies, University of Salento , Lecce , Italy
| | - Michele Maffia
- Laboratory of General Physiology, Department of Biological and Environmental Sciences and Technologies, University of Salento , Lecce , Italy
| | - Alessandro Romano
- Neuropathology Unit, Institute of Experimental Neurology and Division of Neuroscience, San Raffaele Scientific Institute , Milan , Italy
| | - Tiziano Verri
- Laboratory of General Physiology, Department of Biological and Environmental Sciences and Technologies, University of Salento , Lecce , Italy
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Shi Y, Wang R, Yuan W, Liu Q, Shi M, Feng W, Wu Z, Hu K, Li F. Easy-to-Use Colorimetric Cyanine Probe for the Detection of Cu 2+ in Wilson's Disease. ACS APPLIED MATERIALS & INTERFACES 2018; 10:20377-20386. [PMID: 29851344 DOI: 10.1021/acsami.8b07081] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Copper(II) is one of the essential metal elements in human body, which can accumulate in many organs and finally excrete in urine. Excessive load of Cu2+ can cause liver cirrhosis, kidney dysfunction, and many neurological symptoms in the case of Wilson's disease (WD). Therefore, the selective and efficient detection of Cu2+ is of great importance. Although various fluorescent probes have been reported for the detection of Cu2+, an efficient and capable probe is still rare for patients' self-use on a routine basis. In this study, we developed an easy-to-use probe CY1 based on UV-vis-near-infrared absorption changes with excellent sensitivity and selectivity for Cu2+. The mechanism of oxidation of CY1 by Cu2+ was first explored. We demonstrated the role of the probe in the quantitative detection of Cu2+ in urine from WD patients and showed that it has great potential for clinical applications.
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Affiliation(s)
- Yibing Shi
- Department of Chemistry & State Key Laboratory of Molecular Engineering of Polymers & Institute of Biomedicine Sciences & Collaborative Innovation Center of Chemistry for Energy Materials , Fudan University , 220 Handan Road , Shanghai 200433 , P. R. China
| | - Roumin Wang
- Department of Neurology and Research Center of Neurology, Second Affiliated Hospital , Zhejiang University School of Medicine , 88 Jiefang Road , Hangzhou , Zhejiang 310009 , P. R. China
| | - Wei Yuan
- Department of Chemistry & State Key Laboratory of Molecular Engineering of Polymers & Institute of Biomedicine Sciences & Collaborative Innovation Center of Chemistry for Energy Materials , Fudan University , 220 Handan Road , Shanghai 200433 , P. R. China
| | - Qingyun Liu
- Department of Chemistry & State Key Laboratory of Molecular Engineering of Polymers & Institute of Biomedicine Sciences & Collaborative Innovation Center of Chemistry for Energy Materials , Fudan University , 220 Handan Road , Shanghai 200433 , P. R. China
| | - Mei Shi
- Department of Chemistry & State Key Laboratory of Molecular Engineering of Polymers & Institute of Biomedicine Sciences & Collaborative Innovation Center of Chemistry for Energy Materials , Fudan University , 220 Handan Road , Shanghai 200433 , P. R. China
| | - Wei Feng
- Department of Chemistry & State Key Laboratory of Molecular Engineering of Polymers & Institute of Biomedicine Sciences & Collaborative Innovation Center of Chemistry for Energy Materials , Fudan University , 220 Handan Road , Shanghai 200433 , P. R. China
| | - Zhiying Wu
- Department of Neurology and Research Center of Neurology, Second Affiliated Hospital , Zhejiang University School of Medicine , 88 Jiefang Road , Hangzhou , Zhejiang 310009 , P. R. China
| | - Ke Hu
- Department of Chemistry & State Key Laboratory of Molecular Engineering of Polymers & Institute of Biomedicine Sciences & Collaborative Innovation Center of Chemistry for Energy Materials , Fudan University , 220 Handan Road , Shanghai 200433 , P. R. China
| | - Fuyou Li
- Department of Chemistry & State Key Laboratory of Molecular Engineering of Polymers & Institute of Biomedicine Sciences & Collaborative Innovation Center of Chemistry for Energy Materials , Fudan University , 220 Handan Road , Shanghai 200433 , P. R. China
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Berzina A, Martinsone I, Svirskis S, Murovska M, Kalis M. Curcumin Effect on Copper Transport in HepG2 Cells. MEDICINA (KAUNAS, LITHUANIA) 2018; 54:E14. [PMID: 30344245 PMCID: PMC6037243 DOI: 10.3390/medicina54020014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 04/10/2018] [Accepted: 04/10/2018] [Indexed: 12/12/2022]
Abstract
Background and Objective: In Wilson's disease, copper metabolism is impaired due to defective copper transporting protein ATP7B, resulting in copper accumulation in liver and brain and causing damage to liver and brain tissues. Published data suggest that one of the possible treatments for Wilson's disease is curcumin-a compound found in the root of Curcuma longa. In this study, we tested whether curcumin affects copper transport and excretion in HepG2 hepatocytes carrying wildtype ATP7B. Materials and Methods: We examined the impact of 5 µM and 25 µM curcumin on the transport of copper in HepG2 cells incubated with 20 µM and 100 µM CuCl₂, as well as copper excretion from cells. First, immunofluorescent staining and co-localization analysis were carried out in HepG2 cells using confocal laser scanning microscope and Nikon NIS Elements software. Second, a concentration of copper extracted into cell culture medium was determined using atomic absorption spectrometry. Results: The analysis of the co-localization between Golgi complex and ATP7B revealed that both 5 µM and 25 µM doses of curcumin improve the ability of liver cells to transport copper to plasma membrane at 20 µM CuCl₂, but not at 100 µM CuCl₂ concentration. However, atomic absorption spectrometry showed that curcumin rather promotes copper absorption into liver cell line HepG2 than excretion of it. Conclusions: Curcumin accelerates the transport of copper within liver cells, but does not promote copper excretion from HepG2 cells.
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Affiliation(s)
- Anita Berzina
- August Kirchenstein Institute of Microbiology and Virology, Riga Stradins University, Dzirciema 16, Riga LV-1007, Latvia.
| | - Inese Martinsone
- Institute of Occupational Safety and Environmental Health, Riga Stradins University, Dzirciema 16, Riga LV-1007, Latvia.
| | - Simons Svirskis
- August Kirchenstein Institute of Microbiology and Virology, Riga Stradins University, Dzirciema 16, Riga LV-1007, Latvia.
| | - Modra Murovska
- August Kirchenstein Institute of Microbiology and Virology, Riga Stradins University, Dzirciema 16, Riga LV-1007, Latvia.
| | - Martins Kalis
- August Kirchenstein Institute of Microbiology and Virology, Riga Stradins University, Dzirciema 16, Riga LV-1007, Latvia.
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Biopolymer strategy for the treatment of Wilson's disease. J Control Release 2018; 273:131-138. [DOI: 10.1016/j.jconrel.2018.01.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 01/16/2018] [Accepted: 01/23/2018] [Indexed: 01/13/2023]
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Proteomic alterations of brain subcellular organelles caused by low-dose copper exposure: implication for Alzheimer's disease. Arch Toxicol 2018; 92:1363-1382. [PMID: 29383422 DOI: 10.1007/s00204-018-2163-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Accepted: 01/17/2018] [Indexed: 12/22/2022]
Abstract
Excessive copper intake can lead to neurotoxicity, but there is a lack of comprehensive understanding on the potential impact of copper exposure especially at a low-dose on brain. We used 3xTg-AD mice to explore the potential neurotoxicity of chronic, low-dose copper treatment (0.13 ppm copper chloride in drinking water) on behavior and the brain hippocampal mitochondrial and nuclear proteome. Low-dose copper increased the spatial memory impairment of these animals, increased accumulation of intracellular amyloid 1-42 (Aβ1-42), decreased ATP content, increased the positive staining of 8-hydroxyguanosine (8-OHdG), a marker of DNA oxidative damage, and caused apoptosis and a decrease in synaptic proteins. Mitochondrial proteomic analysis by two-dimensional fluorescence difference gel electrophoresis (2D-DIGE) revealed modulation of 24 hippocampal mitochondrial proteins (14 increased and 10 decreased) in copper-treated vs. untreated 3xTg-AD mice. Nuclear proteomic analysis revealed 43 modulated hippocampal nuclear proteins (25 increased and 18 decreased) in copper-treated 3xTg-AD vs. untreated mice. Classification of modulated mitochondrial and nuclear proteins included functional categories such as energy metabolism, synaptic-related proteins, DNA damage and apoptosis-related proteins, and oxidative stress-related proteins. Among these differentially expressed mitochondrial and nuclear proteins, nine proteins were abnormally expressed in both hippocampus mitochondria and nuclei, including electron transport chain-related proteins NADH dehydrogenase 1 alpha subcomplex subunit 10 (NDUAA), cytochrome b-c1 complex subunit Rieske (UCRI), cytochrome c oxidase subunit 5B (COX5B), and ATP synthase subunit d (ATP5H), glycolytic-related pyruvate kinase PKM (KPYM) and pyruvate dehydrogenase E1 component subunit alpha (ODPA). Furthermore, we found coenzyme Q10 (CoQ10), an endogenous mitochondrial protective factor/antioxidant, modulated the expression of 12 differentially expressed hippocampal proteins (4 increased and 8 decreased), which could be classified in functional categories such as glycolysis and synaptic-related proteins, oxidative stress-related proteins, implying that CoQ10 improved synaptic function, suppress oxidative stress, and regulate glycolysis. For the proteomics study, we validated the expression of several proteins related to synapses, DNA and apoptosis. The data confirmed that synapsin-2, a synaptic-related protein, was significantly decreased in both mitochondria and nuclei of copper-exposed 3xTg-AD mice. In mitochondria, dynamin-1 (DYN1), an apoptosis-related proteins, was significantly decreased. In the cellular nuclei, paraspeckle protein 1 (PSPC1) and purin-rich element-binding protein alpha (Purα), two DNA damage-related proteins, were significantly decreased and increased, respectively. We conclude that low-dose copper exposure exacerbates the spatial memory impairment of 3xTg-AD mice and perturbs multiple biological/pathogenic processes by dysregulating the mitochondrial and nuclear proteome. Exposure to copper might therefore contribute to the evolution of AD.
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Sridhar MS, Rangaraju A, Anbarasu K, Reddy SP, Daga S, Jayalakshmi S, Shaik B. Evaluation of Kayser-Fleischer ring in Wilson disease by anterior segment optical coherence tomography. Indian J Ophthalmol 2017; 65:354-357. [PMID: 28573989 PMCID: PMC5565897 DOI: 10.4103/ijo.ijo_400_16] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Purpose: The purpose of the study is to present anterior segment optical coherence tomography (AS-OCT) as an alternative method of evaluating Kayser–Fleischer (KF) ring in Wilson disease (WD) not only by ophthalmologists but also by other clinicians dealing with WD. Materials and Methods: This was a retrospective case series of six WD patients with KF ring. Evaluation of KF ring was done by naked eye examination using torch light, slit lamp biomicroscopy (SL), and AS-OCT. SL examination was done using a narrow slit of the superior cornea. AS-OCT was done using the Optovue RTvue Premier™ device (Fremont, CA, USA). Results: AS-OCT revealed KF ring as an intense hyperreflective band at the level of Descemet membrane (DM). Color scale of AS-OCT showed KF ring as greenish/greenish yellow/orange yellow/yellowish/red band. Validation of AS-OCT findings was done by second ophthalmologist, medical gastroenterologist, surgical gastroenterologist, and neurophysician. After seeing the first observation, they could identify the AS-OCT features in all pictures with ease. Conclusions: This is the first observation of KF ring in WD on AS-OCT. On AS-OCT, KF ring is visualized as intense hyperreflectivity at the level of DM in the peripheral cornea. Further, studies are needed to evaluate the usefulness of AS-OCT in WD management.
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Affiliation(s)
- Mittanamalli S Sridhar
- Department of Ophthalmology, Krishna Institute of Medical Sciences, Hyderabad, Telangana, India
| | | | - Kavitha Anbarasu
- KIMS Foundation and Research Centre, Hyderabad, Telangana, India
| | - Sharat Putta Reddy
- Department of Gastroenterology, Krishna Institute of Medical Sciences, Hyderabad, Telangana, India
| | - Sachin Daga
- Department of HPB and Liver Transplant, Krishna Institute of Medical Sciences, Hyderabad, Telangana, India
| | - Sita Jayalakshmi
- Department of Neurology, Krishna Institute of Medical Sciences, Hyderabad, Telangana, India
| | - Bajibhi Shaik
- Department of Ophthalmology, Krishna Institute of Medical Sciences, Hyderabad, Telangana, India
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Liu Y, Su Q, Chen M, Dong Y, Shi Y, Feng W, Wu ZY, Li F. Near-Infrared Upconversion Chemodosimeter for In Vivo Detection of Cu(2+) in Wilson Disease. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:6625-30. [PMID: 27185083 DOI: 10.1002/adma.201601140] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 03/23/2016] [Indexed: 05/16/2023]
Abstract
Near-infrared upconversion chemodosimetry is a promising detection method by virtue of the frequency upconversion technique, which shows very high sensitivity and selectivity for the detection of Cu(2+) ions in vitro and in vivo. This method offers a new opportunity for noninvasive diagnosis of Wilson disease associated with Cu(2+) detection in clinical medicine.
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Affiliation(s)
- Yi Liu
- Department of Chemistry and State Key Laboratory of Molecular Engineering of Polymers Institute of Biomedicine Sciences and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200433, P. R. China
| | - Qianqian Su
- Department of Chemistry and State Key Laboratory of Molecular Engineering of Polymers Institute of Biomedicine Sciences and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200433, P. R. China
| | - Min Chen
- Department of Chemistry and State Key Laboratory of Molecular Engineering of Polymers Institute of Biomedicine Sciences and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200433, P. R. China
| | - Yi Dong
- Department of Neurology, Huashan Hospital, Institutes of Brain Science and State Key Laboratory of Medical Neurobiology, Shanghai Medical College, Fudan University, Shanghai, 200040, P. R. China
| | - Yibing Shi
- Department of Chemistry and State Key Laboratory of Molecular Engineering of Polymers Institute of Biomedicine Sciences and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200433, P. R. China
| | - Wei Feng
- Department of Chemistry and State Key Laboratory of Molecular Engineering of Polymers Institute of Biomedicine Sciences and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200433, P. R. China
| | - Zhi-Ying Wu
- Department of Neurology, Huashan Hospital, Institutes of Brain Science and State Key Laboratory of Medical Neurobiology, Shanghai Medical College, Fudan University, Shanghai, 200040, P. R. China
| | - Fuyou Li
- Department of Chemistry and State Key Laboratory of Molecular Engineering of Polymers Institute of Biomedicine Sciences and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200433, P. R. China
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Guggilla SR, Senagari JR, Rao PN, Madireddi S. Spectrum of mutations in the ATP binding domain of ATP7B gene of Wilson Disease in a regional Indian cohort. Gene 2015; 569:83-7. [PMID: 25982861 DOI: 10.1016/j.gene.2015.05.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 05/01/2015] [Accepted: 05/12/2015] [Indexed: 12/31/2022]
Abstract
Wilson disease is an autosomal recessive disorder of abnormal copper accumulation in the liver, brain, kidney and cornea, resulting in hepatic and neurological abnormalities, which results from impaired ATP7B protein function due to mutations in candidate ATP7B gene, till date more than 500 disease causing mutations were found. In India most disease causing mutations were identified in ATP-BD. DNA samples of the 101 WD cases and 100 control population were analyzed for mutations. 11 mutations were identified in 57 chromosomes. Three novel mutations, c.3310T>A (p.Cys1104Ser), c.3337C>A (p.Leu1113Met) on exon 15 and c.3877G>A (p.Glu1293Lys) on exon 18 were identified for the first time in the ATP7B gene. Two mutations, c.3121C>T (p.Arg1041Trp) and c.3128T>C (p.Leu1043Pro) on exon 14 were discovered for the first time in Indian Wilson disease patients. Four previously reported mutations c.3008C>T, c.3029A>G on exon 13, c.3182G>A on exon 14 and c.3809A>G on exon 18 from South India were also found in this study. Our research has enriched the spectrum of mutations of the ATP7B gene in the south Indian population. The detection of new mutations in the ATP7B gene can aid in genetic counseling and clinical or/prenatal diagnosis.
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Affiliation(s)
- Sreenivasa Rao Guggilla
- Institute of Genetics and Hospital for Genetic Diseases, Osmania University, Hyderabad India
| | | | - P N Rao
- Asian Institute of Gastroenterology Hyderabad, India
| | - Sujatha Madireddi
- Institute of Genetics and Hospital for Genetic Diseases, Osmania University, Hyderabad India.
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Kumar V, Kalita J, Misra UK, Bora HK. A study of dose response and organ susceptibility of copper toxicity in a rat model. J Trace Elem Med Biol 2015; 29:269-74. [PMID: 25022334 DOI: 10.1016/j.jtemb.2014.06.004] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Revised: 06/03/2014] [Accepted: 06/05/2014] [Indexed: 11/23/2022]
Abstract
Copper (Cu) in higher concentration is toxic and results in various organ dysfunction. We report Cu concentration in liver, brain and kidney in the rat model following chronic exposure of oral copper sulphate at different subtoxic doses and correlate the tissue Cu concentrations with respective organ dysfunction. Fifty-four male wistar rats divided in 3 groups, the control group received saline water and the experimental group (Group-IIA and IIB) received oral copper sulphate in dose of 100 and 200mg/kg Body Weight. At the end of 30 days, 60 days and 90 days of exposure, six rats were sacrificed from each group. The maximum peak force in grip strength, latency to fall in rotarod and percentage attention score in Y-maze were significantly reduced in the copper sulphate exposed rats compared to the controls at all time points and these were more marked in Group-IIB compared to Group-IIA. Cu concentration was significantly higher in liver, kidney and brain in the Group-II compared to the Group-I. The Cu concentration was highest in the liver (29 folds) followed by kidney (3 folds) and brain (1.5 folds). Serum ALT, AST and bilirubin correlated with liver Cu, BUN with kidney Cu, and grip strength, rotarod and Y-maze findings correlated with brain Cu level. In rats, chronic oral copper sulphate exposure at subtoxic level results in neurobehavioral abnormality and liver and kidney dysfunctions due to increased Cu concentration in the respective organs. Liver is the most vulnerable organ and copper toxicity increases with increasing dose and duration of exposure.
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Affiliation(s)
- Vijay Kumar
- Department of Neurology, Sanjay Gandhi Post Graduate Medical Sciences, Raebareily Road, Lucknow 226014, India
| | - Jayantee Kalita
- Department of Neurology, Sanjay Gandhi Post Graduate Medical Sciences, Raebareily Road, Lucknow 226014, India.
| | - U K Misra
- Department of Neurology, Sanjay Gandhi Post Graduate Medical Sciences, Raebareily Road, Lucknow 226014, India
| | - H K Bora
- Laboratory Animal Division, Central Drug Research Institute, Lucknow, India
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Bem RSD, Raskin S, Muzzillo DA, Deguti MM, Cançado ELR, Araújo TF, Nakhle MC, Barbosa ER, Munhoz RP, Teive HAG. Wilson's disease in Southern Brazil: genotype-phenotype correlation and description of two novel mutations in ATP7B gene. ARQUIVOS DE NEURO-PSIQUIATRIA 2014; 71:503-7. [PMID: 23982005 DOI: 10.1590/0004-282x20130078] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Accepted: 01/11/2013] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Wilson's disease (WD) is an inborn error of metabolism caused by abnormalities of the copper-transporting protein encoding gene ATP7B. In this study, we examined ATP7B for mutations in a group of patients living in southern Brazil. METHODS 36 WD subjects were studied and classified according to their clinical and epidemiological data. In 23 subjects the ATP7B gene was analyzed. RESULTS Fourteen distinct mutations were detected in at least one of the alleles. The c.3207C>A substitution at exon 14 was the most common mutation (allelic frequency=37.1%) followed by the c.3402delC at exon 15 (allelic frequency=11.4%). The mutations c.2018-2030del13 at exon 7 and c.4093InsT at exon 20 are being reported for the first time. CONCLUSION The c.3207C>A substitution at exon 14, was the most common mutation, with an allelic frequency of 37.1%. This mutation is the most common mutation described in Europe.
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Affiliation(s)
- Ricardo Schmitt de Bem
- UFPR, Gastroenterology and Hepatology Service, Internal Medicine Department, Curitiba PR, Brazil
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21
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Arruda WO, Munhoz RP, de Bem RS, Deguti MM, Barbosa ER, Zavala JA, Teive HA. Pathogenic compound heterozygous ATP7B mutations with hypoceruloplasminaemia without clinical features of Wilson’s disease. J Clin Neurosci 2014; 21:335-6. [DOI: 10.1016/j.jocn.2013.02.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Revised: 11/28/2012] [Accepted: 02/17/2013] [Indexed: 12/14/2022]
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Chabik G, Litwin T, Członkowska A. Concordance rates of Wilson's disease phenotype among siblings. J Inherit Metab Dis 2014; 37:131-5. [PMID: 23774950 PMCID: PMC3889629 DOI: 10.1007/s10545-013-9625-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Revised: 05/17/2013] [Accepted: 05/27/2013] [Indexed: 11/26/2022]
Abstract
Wilson's disease (WD) is an autosomal recessive disorder characterized by the functional disruption of adenosine triphosphatase 7B (ATP7B), which results in positive copper balance. Although the primary manifestations of the disease are hepatic or neurological in scope, the factors that cause a very diverse picture of WD are not well researched. We compared the first clinical presentation, ages of onset and diagnosis, copper metabolism parameters, and ceruloplasmin levels between index cases (ICs) and their siblings. We examined 73 ICs and 95 siblings from 73 families, including a total of 168 patients with biochemical and genetically confirmed WD diagnoses. We observed an 86% concordance rate of primary clinical symptoms among ICs with hepatic symptoms and their siblings. There was 66% concordance among ICs with neurological symptoms and their siblings. No differences regarding age at onset of symptoms or copper metabolism parameters at diagnosis were identified between hepatic ICs and their siblings. The age at symptom onset did not differ between neurological ICs and their siblings, although ICs presented lower ceruloplasmin and serum copper levels. These results demonstrate a high intra-familial concordance of the clinical and biochemical presentation of WD, suggesting that similar factors shared within the same families strongly influence the disease presentation.
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Affiliation(s)
- Grzegorz Chabik
- 2nd Department of Neurology, Institute of Psychiatry and Neurology, 9 Sobieskiego Str., 02-957 Warsaw, Poland
| | - Tomasz Litwin
- 2nd Department of Neurology, Institute of Psychiatry and Neurology, 9 Sobieskiego Str., 02-957 Warsaw, Poland
| | - Anna Członkowska
- 2nd Department of Neurology, Institute of Psychiatry and Neurology, 9 Sobieskiego Str., 02-957 Warsaw, Poland
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In silico investigation of the ATP7B gene: insights from functional prediction of non-synonymous substitution to protein structure. Biometals 2013; 27:53-64. [PMID: 24253677 DOI: 10.1007/s10534-013-9686-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Accepted: 11/07/2013] [Indexed: 01/22/2023]
Abstract
ATP7B is a copper-transporting ATPase that plays a key role in the regulation of copper homeostasis. Mutations in the ATP7B gene are causative for Wilson's disease, and recent reports have suggested that genetic variants are associated with susceptibility to Alzheimer's disease. Unfortunately, it is difficult to profile experimentally novel genetic variants in the ATP7B gene, because the human protein X-ray structure is not yet entirely understood. In order to investigate ATP7B non-synonymous substitutions, we used an in silico amino acid sequence-based approach. Specifically, we analyzed 337 ATP7B non-synonymous substitutions, which included Wilson's disease-causing mutations (DVs) and non Wilson's disease-causing variants (NDVs), with an algorithm that estimated a combined probability (cPdel) of an amino acidic change to be deleterious for the protein function. This approach appeared to reliably indentify the probability of DVs and NDVs to be deleterious and to profile still unknown gene variants. Specifically, after analyzing ATP7B protein domains with the cPdel method, we found results in line with the predicted-modeled domains and some new suggestions. In conclusion, a functional survey of amino acid changes in the ATP7B protein is provided herein, and we suggest that this bioinformatic method can furnish information about novel ATP7B mutations. Furthermore, the same approach can be applied to other uncharacterized proteins.
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Limongi JCP. Wilson's disease. ARQUIVOS DE NEURO-PSIQUIATRIA 2013; 71:501-502. [PMID: 23982004 DOI: 10.1590/0004-282x20130115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Accepted: 07/19/2013] [Indexed: 06/02/2023]
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Aizawa CYP, Pedroso JL, Braga-Neto P, Callegari MR, Barsottini OGP. Patients with autosomal dominant spinocerebellar ataxia have more risk of falls, important balance impairment, and decreased ability to function. ARQUIVOS DE NEURO-PSIQUIATRIA 2013; 71:508-11. [DOI: 10.1590/0004-282x20130094] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2012] [Accepted: 04/09/2013] [Indexed: 11/22/2022]
Abstract
OBJECTIVES: To assess balance and ability to function in patients with spinocerebellar ataxia. METHODS: A total of 44 patients with different spinocerebellar ataxia types 1, 2, 3, and 6 were evaluated using the Tinetti balance and gait assessment and the functional independence measure. The scale for the assessment and rating of ataxia and the international cooperative ataxia rating scale were used to evaluate disease severity. RESULTS: Most patients showed significant risk of falls. The balance scores were significantly different in spinocerebellar ataxia types. A significant positive correlation between balance and disease severity was found. CONCLUSION: Patients with spinocerebellar ataxia have important balance impairment and risk of falls that influence the ability to function such as self-care, transfers, and locomotion. Furthermore, the more severe ataxia is, the more compromised are postural balance, risk of falls, and ability to function.
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Denoyer Y, Woimant F, Bost M, Edan G, Drapier S. Neurological Wilson's disease lethal for the son, asymptomatic in the father. Mov Disord 2013; 28:402-3. [DOI: 10.1002/mds.25290] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2012] [Revised: 09/25/2012] [Accepted: 10/24/2012] [Indexed: 11/09/2022] Open
Affiliation(s)
- Yves Denoyer
- Service de Neurologie; CHU Pontchaillou; Rennes; France
| | | | - Muriel Bost
- Laboratoire des Maladies Héréditaires du Métabolisme et de Neurogénétique Moléculaire; Centre de Biologie et Pathologie Est; CMR Wilson; Bron; France
| | - Gilles Edan
- Service de Neurologie; CHU Pontchaillou; Rennes; France
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Wang Y, Xie CL, Fu DL, Lu L, Lin Y, Dong QQ, Wang XT, Zheng GQ. Clinical efficacy and safety of Chinese herbal medicine for Wilson's disease: A systematic review of 9 randomized controlled trials. Complement Ther Med 2012; 20:143-54. [DOI: 10.1016/j.ctim.2011.12.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2011] [Revised: 12/12/2011] [Accepted: 12/13/2011] [Indexed: 01/01/2023] Open
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Inzelberg R, Weinberger M, Gak E. Benign hereditary chorea: an update. Parkinsonism Relat Disord 2011; 17:301-7. [PMID: 21292530 DOI: 10.1016/j.parkreldis.2011.01.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Revised: 01/04/2011] [Accepted: 01/05/2011] [Indexed: 12/13/2022]
Abstract
Benign hereditary chorea (BHC, MIM 118700) is a rare autosomal dominant disorder manifesting with chorea in conjunction with hypothyroidism and respiratory problems, a triad also named "brain-lung-thyroid syndrome". BHC is characterized by childhood onset with minimal or no progression into adult life and normal cognitive function. The genetic basis of BHC has been partially resolved, when mutations in the TTF1 gene on chromosome 14q13 encoding the thyroid transcription factor-1 have been identified in a number of BHC patients, suggesting that aberration of TTF1 transcriptional function or haploinsufficiency is associated with this disorder. TTF1 (also known as TITF1, TEBP or NKX2-1), belonging to the NKX2 homeodomain transcription factor family, has been implicated in several important molecular pathways essential for brain, thyroid and lung morphogenesis. Clinical evaluation of TTF1 gene mutations carrier patients exposed the involvement of each of the triad's components characterized by heterogeneity between index cases and even within families. This review highlights the current updates on expanded clinical aspects of BHC, imaging and treatment experience, its genetic markers, proposed molecular mechanisms, animal models and link to cancer.
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Affiliation(s)
- Rivka Inzelberg
- Joseph Sagol Neuroscience Center, Department of Neurology, Sheba Medical Center, 52621 Tel Hashomer, Israel.
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Wang HC, Brumaghim JL. Polyphenol Compounds as Antioxidants for Disease Prevention: Reactive Oxygen Species Scavenging, Enzyme Regulation, and Metal Chelation Mechanisms in E. coliand Human Cells. ACS SYMPOSIUM SERIES 2011. [DOI: 10.1021/bk-2011-1083.ch005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Hsiao C. Wang
- Chemistry Department, Clemson University, Clemson, South Carolina 29634-0973
| | - Julia L. Brumaghim
- Chemistry Department, Clemson University, Clemson, South Carolina 29634-0973
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