1
|
Roy A, Cumberland MJ, O'Shea C, Holmes A, Kalla M, Gehmlich K, Geberhiwot T, Steeds RP. Arrhythmogenesis in Fabry Disease. Curr Cardiol Rep 2024; 26:545-560. [PMID: 38607539 PMCID: PMC11199244 DOI: 10.1007/s11886-024-02053-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/25/2024] [Indexed: 04/13/2024]
Abstract
PURPOSE OF REVIEW Fabry Disease (FD) is a rare lysosomal storage disorder characterised by multiorgan accumulation of glycosphingolipid due to deficiency in the enzyme α-galactosidase A. Cardiac sphingolipid accumulation triggers various types of arrhythmias, predominantly ventricular arrhythmia, bradyarrhythmia, and atrial fibrillation. Arrhythmia is likely the primary contributor to FD mortality with sudden cardiac death, the most frequent cardiac mode of death. Traditionally FD was seen as a storage cardiomyopathy triggering left ventricular hypertrophy, diastolic dysfunction, and ultimately, systolic dysfunction in advanced disease. The purpose of this review is to outline the current evidence exploring novel mechanisms underlying the arrhythmia substrate. RECENT FINDINGS There is growing evidence that FD cardiomyopathy is a primary arrhythmic disease with each stage of cardiomyopathy (accumulation, hypertrophy, inflammation, and fibrosis) contributing to the arrhythmia substrate via various intracellular, extracellular, and environmental mechanisms. It is therefore important to understand how these mechanisms contribute to an individual's risk of arrhythmia in FD. In this review, we outline the epidemiology of arrhythmia, pathophysiology of arrhythmogenesis, risk stratification, and cardiac therapy in FD. We explore how advances in conventional cardiac investigations performed in FD patients including 12-lead electrocardiography, transthoracic echocardiography, and cardiac magnetic resonance imaging have enabled early detection of pro-arrhythmic substrate. This has allowed for appropriate risk stratification of FD patients. This paves the way for future work exploring the development of therapeutic initiatives and risk prediction models to reduce the burden of arrhythmia.
Collapse
Affiliation(s)
- Ashwin Roy
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK.
- Department of Cardiology, University Hospital Birmingham NHS Foundation Trust, Birmingham, Birmingham, UK.
| | - Max J Cumberland
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
| | - Christopher O'Shea
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
| | - Andrew Holmes
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
| | - Manish Kalla
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
- Department of Cardiology, University Hospital Birmingham NHS Foundation Trust, Birmingham, Birmingham, UK
| | - Katja Gehmlich
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
- Division of Cardiovascular Medicine, Department of Medicine and British Heart Foundation Centre of Research Excellence Oxford, University of Oxford, Oxford, UK
| | - Tarekegn Geberhiwot
- Department of Inherited Metabolic Diseases, University Hospital Birmingham NHS Foundation Trust, Birmingham, Birmingham, UK
- Institute of Metabolism and System Research, University of Birmingham, Birmingham, UK
| | - Richard P Steeds
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
- Department of Cardiology, University Hospital Birmingham NHS Foundation Trust, Birmingham, Birmingham, UK
| |
Collapse
|
2
|
Honda M, Ishikawa Y, Ito K, Teramura S, Yasuhiro S, Yamada T. A Case of Hypofractionated Radiation Therapy for Early-Stage Breast Cancer in a Patient With Fabry Disease. Cureus 2024; 16:e54329. [PMID: 38496077 PMCID: PMC10944670 DOI: 10.7759/cureus.54329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/16/2024] [Indexed: 03/19/2024] Open
Abstract
Fabry disease is a metabolic disorder caused by a deficiency in lysosomal enzymes and is inherited as an X-chromosomal disorder. Patients with Fabry disease have a low incidence of cancer, and reports of malignant tumors, especially in the thoracic region, are rare. In this case report, we describe our experience with radiation therapy following breast-conserving surgery in a patient with left breast cancer and Fabry disease, and we review the existing literature. The patient, a woman in her 40s, required postoperative irradiation for left breast cancer (pT1N0M0). There were several patients with Fabry disease in her family, and the diagnosis of Fabry disease was made five years ago. Cardiac function evaluation revealed no significant abnormalities, but a myocardial biopsy had suggested the presence of Fabry disease. Due to the relatively preserved distance between the heart and the chest wall, the patient received heart-shielded three-dimensional conformal radiation therapy at a dose of 53.2 Gy in 20 fractions, without the use of deep-inspiration breath-hold or intensity-modulated radiotherapy. After treatment was completed, only mild radiation dermatitis was observed. Six months have passed since treatment, and there have been no serious adverse events.
Collapse
Affiliation(s)
- Motoki Honda
- Radiology, Tohoku Medical and Pharmaceutical University, Sendai, JPN
| | - Yojiro Ishikawa
- Radiology, Tohoku Medical and Pharmaceutical University, Sendai, JPN
| | - Kengo Ito
- Radiology, Tohoku Medical and Pharmaceutical University, Sendai, JPN
| | - Satoshi Teramura
- Radiology, Tohoku Medical and Pharmaceutical University, Sendai, JPN
| | | | - Takayuki Yamada
- Radiology, Tohoku Medical and Pharmaceutical University, Sendai, JPN
| |
Collapse
|
3
|
Izhar R, Borriello M, La Russa A, Di Paola R, De A, Capasso G, Ingrosso D, Perna AF, Simeoni M. Fabry Disease in Women: Genetic Basis, Available Biomarkers, and Clinical Manifestations. Genes (Basel) 2023; 15:37. [PMID: 38254927 PMCID: PMC10815601 DOI: 10.3390/genes15010037] [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: 11/29/2023] [Revised: 12/22/2023] [Accepted: 12/24/2023] [Indexed: 01/24/2024] Open
Abstract
Fabry Disease (FD) is a rare lysosomal storage disorder caused by mutations in the GLA gene on the X chromosome, leading to a deficiency in α-galactosidase A (AGAL) enzyme activity. This leads to the accumulation of glycosphingolipids, primarily globotriaosylceramide (Gb3), in vital organs such as the kidneys, heart, and nervous system. While FD was initially considered predominantly affecting males, recent studies have uncovered that heterozygous Fabry women, carrying a single mutated GLA gene, can manifest a wide array of clinical symptoms, challenging the notion of asymptomatic carriers. The mechanisms underlying the diverse clinical manifestations in females remain not fully understood due to X-chromosome inactivation (XCI). XCI also known as "lyonization", involves the random inactivation of one of the two X chromosomes. This process is considered a potential factor influencing phenotypic variation. This review delves into the complex landscape of FD in women, discussing its genetic basis, the available biomarkers, clinical manifestations, and the potential impact of XCI on disease severity. Additionally, it highlights the challenges faced by heterozygous Fabry women, both in terms of their disease burden and interactions with healthcare professionals. Current treatment options, including enzyme replacement therapy, are discussed, along with the need for healthcare providers to be well-informed about FD in women, ultimately contributing to improved patient care and quality of life.
Collapse
Affiliation(s)
- Raafiah Izhar
- Department of Mental and Physical Health and Preventive Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (R.D.P.); (A.D.)
| | - Margherita Borriello
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (M.B.); (D.I.)
| | - Antonella La Russa
- Department of Sperimental Medical and Surgical Sciences, Magna Graecia University, 88100 Catanzaro, Italy;
| | - Rossella Di Paola
- Department of Mental and Physical Health and Preventive Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (R.D.P.); (A.D.)
| | - Ananya De
- Department of Mental and Physical Health and Preventive Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (R.D.P.); (A.D.)
| | | | - Diego Ingrosso
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (M.B.); (D.I.)
| | - Alessandra F. Perna
- Nephrology and Dialysis Unit, Department of Translation Medical Sciences, University of Campania “Luigi Vanvitelli”, 80131 Naples, Italy;
| | - Mariadelina Simeoni
- Nephrology and Dialysis Unit, Department of Translation Medical Sciences, University of Campania “Luigi Vanvitelli”, 80131 Naples, Italy;
| |
Collapse
|
4
|
Van Baelen A, Roosens L, Devos S, Verhulst S, Eyskens F. A new multiplex analysis of glucosylsphingosine and globotriaosylsphingosine in dried blood spots by tandem mass spectrometry. Mol Genet Metab Rep 2023; 37:100993. [PMID: 37649874 PMCID: PMC10462886 DOI: 10.1016/j.ymgmr.2023.100993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 07/14/2023] [Indexed: 09/01/2023] Open
Abstract
Background Gaucher's and Fabry's disease are two of the most common treatable lysosomal storage diseases, and have a wide spectrum of clinical symptoms. Early detection is important, because timely initiation of treatments can improve the disease status and prevent complications. However disease manifestations develop in childhood, diagnosis is delayed until adulthood partly due to the limitations of the currently used diagnostic pathway. The aim of this research is to develop and validate a multiplex assay and defining reference ranges, which do not exist at this moment, to improve and facilitate the entire diagnostic work up and enable treatment in an earlier stage of disease. Methods and findings Biomarkers glucosylsphingosine (GlcSph) and globotriaosylsphingosine (Lyso-Gb3) were detected and quantified using LC-MS/MS on dried blood spots. We developed an improved and new extraction method that allowed to measure GlcSph and Lyso-Gb3 in a multiplex analytical platform. After validation of the method, samples of 1480 individuals with normal enzymatic activity were collected to determine age and gender-related reference ranges.Our combination method showed a good linearity, precision, accuracy and limit of quantification with lack of carry-over following the specific international CLSI guidelines. The suggested protocol is robust, efficient, sensitive, specific, comprehensive and relatively cheap in order to accelerate the diagnostic process for both lysosomal storage diseases. The samples, with normal enzymatic activity, defined statistical relevant and clinical correct reference ranges for each specific age group by gender. Conclusion We report a multiplex LC-MS/MS method and relevant reference ranges that are appropriate for the targeted screening, diagnosis and follow-up of Fabry and Gaucher disease.
Collapse
Affiliation(s)
- Amber Van Baelen
- Center of Inherited Metabolic Diseases, UZA, Antwerp, Belgium
- Laboratory of Experimental Medicine and Pediatrics, University of Antwerp, Belgium
- Pediatric Department, UZA, Antwerp, Belgium
| | | | | | - Stijn Verhulst
- Laboratory of Experimental Medicine and Pediatrics, University of Antwerp, Belgium
- Pediatric Department, UZA, Antwerp, Belgium
| | - François Eyskens
- Center of Inherited Metabolic Diseases, UZA, Antwerp, Belgium
- Laboratory of Experimental Medicine and Pediatrics, University of Antwerp, Belgium
- Pediatric Department, UZA, Antwerp, Belgium
| |
Collapse
|
5
|
Vijapurapu R, Roy A, Demetriades P, Warfield A, Hughes DA, Moon J, Woolfson P, de Bono J, Geberhiwot T, Kotecha D, Steeds RP. Systematic review of the incidence and clinical risk predictors of atrial fibrillation and permanent pacemaker implantation for bradycardia in Fabry disease. Open Heart 2023; 10:e002316. [PMID: 37460269 DOI: 10.1136/openhrt-2023-002316] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 06/16/2023] [Indexed: 07/20/2023] Open
Abstract
INTRODUCTION Fabry disease (FD) is an X-linked lysosomal storage disorder caused by enzyme deficiency, leading to glycosphingolipid accumulation. Cardiac accumulation triggers local tissue injury, electrical instability and arrhythmia. Bradyarrhythmia and atrial fibrillation (AF) incidence are reported in up to 16% and 13%, respectively. OBJECTIVE We conducted a systematic review evaluating AF burden and bradycardia requiring permanent pacemaker (PPM) implantation and report any predictive risk factors identified. METHODS We conducted a literature search on studies in adults with FD published from inception to July 2019. Study outcomes included AF or bradycardia requiring therapy. Databases included Embase, Medline, PubMed, Web of Science, CINAHL and Cochrane. The Risk of Bias Agreement tool for Non-Randomised Studies (RoBANS) was utilised to assess bias across key areas. RESULTS 11 studies were included, eight providing data on AF incidence or PPM implantation. Weighted estimate of event rates for AF were 12.2% and 10% for PPM. Age was associated with AF (OR 1.05-1.20 per 1-year increase in age) and a risk factor for PPM implantation (composite OR 1.03). Left ventricular hypertrophy (LVH) was associated with AF and PPM implantation. CONCLUSION Evidence supporting AF and bradycardia requiring pacemaker implantation is limited to single-centre studies. Incidence is variable and choice of diagnostic modality plays a role in detection rate. Predictors for AF (age, LVH and atrial dilatation) and PPM (age, LVH and PR/QRS interval) were identified but strength of association was low. Incidence of AF and PPM implantation in FD are variably reported with arrhythmia burden likely much higher than previously thought. PROSPERO DATABASE CRD42019132045.
Collapse
Affiliation(s)
- Ravi Vijapurapu
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
- Department of Cardiology, Queen Elizabeth Hospital, Birmingham, UK
| | - Ashwin Roy
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
| | | | - Adrian Warfield
- Department of Histopathology, Queen Elizabeth Hospital, Birmingham, UK
| | | | - James Moon
- Department of Cardiology, Saint Bartholomew's Hospital Barts Heart Centre, London, UK
| | - Peter Woolfson
- Department of Cardiology, Salford Royal Hospital, Salford, UK
| | - Joseph de Bono
- Department of Cardiology, Queen Elizabeth Hospital, Birmingham, UK
| | - Tarekegn Geberhiwot
- Department of Metabolic Medicine, Queen Elizabeth Hospital, Birmingham, UK
- University of Birmingham, Birmingham, UK
| | - Dipak Kotecha
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
| | - Richard Paul Steeds
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
- Department of Cardiology, Queen Elizabeth Hospital, Birmingham, UK
| |
Collapse
|
6
|
Michalski AA, Lis K, Stankiewicz J, Kloska SM, Sycz A, Dudziński M, Muras-Szwedziak K, Nowicki M, Bazan-Socha S, Dabrowski MJ, Basak GW. Supporting the Diagnosis of Fabry Disease Using a Natural Language Processing-Based Approach. J Clin Med 2023; 12:jcm12103599. [PMID: 37240705 DOI: 10.3390/jcm12103599] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 05/01/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023] Open
Abstract
In clinical practice, the consideration of non-specific symptoms of rare diseases in order to make a correct and timely diagnosis is often challenging. To support physicians, we developed a decision-support scoring system on the basis of retrospective research. Based on the literature and expert knowledge, we identified clinical features typical for Fabry disease (FD). Natural language processing (NLP) was used to evaluate patients' electronic health records (EHRs) to obtain detailed information about FD-specific patient characteristics. The NLP-determined elements, laboratory test results, and ICD-10 codes were transformed and grouped into pre-defined FD-specific clinical features that were scored in the context of their significance in the FD signs. The sum of clinical feature scores constituted the FD risk score. Then, medical records of patients with the highest FD risk score were reviewed by physicians who decided whether to refer a patient for additional tests or not. One patient who obtained a high-FD risk score was referred for DBS assay and confirmed to have FD. The presented NLP-based, decision-support scoring system achieved AUC of 0.998, which demonstrates that the applied approach enables for accurate identification of FD-suspected patients, with a high discrimination power.
Collapse
Affiliation(s)
- Adrian A Michalski
- Saventic Health, Polna 66/12 Street, 87-100 Torun, Poland
- Department of Analytical Chemistry, Nicolaus Copernicus University Ludwik Rydygier Collegium Medicum, 85-089 Bydgoszcz, Poland
| | - Karol Lis
- Saventic Health, Polna 66/12 Street, 87-100 Torun, Poland
- Department of Hematology, Transplantation and Internal Medicine, Medical University of Warsaw, 02-097 Warsaw, Poland
| | - Joanna Stankiewicz
- Saventic Health, Polna 66/12 Street, 87-100 Torun, Poland
- Department of Pediatrics, Hematology and Oncology, Nicolaus Copernicus University Ludwik Rydygier Collegium Medicum, 85-094 Bydgoszcz, Poland
| | - Sylwester M Kloska
- Saventic Health, Polna 66/12 Street, 87-100 Torun, Poland
- Department of Forensic Medicine, Nicolaus Copernicus University Ludwik Rydygier Collegium Medicum, 85-067 Bydgoszcz, Poland
| | - Arkadiusz Sycz
- Saventic Health, Polna 66/12 Street, 87-100 Torun, Poland
- Faculty of Mathematics and Information Science, Warsaw University of Technology, 00-662 Warsaw, Poland
| | - Marek Dudziński
- Saventic Health, Polna 66/12 Street, 87-100 Torun, Poland
- Department of Hematology, Institute of Medical Sciences, College of Medical Sciences, University of Rzeszow, 35-959 Rzeszow, Poland
| | - Katarzyna Muras-Szwedziak
- Saventic Foundation, Polna 66/12 Street, 87-100 Torun, Poland
- Department of Nephrology, Hypertension and Kidney Transplantation, Medical University of Lodz, 90-419 Lodz, Poland
| | - Michał Nowicki
- Saventic Foundation, Polna 66/12 Street, 87-100 Torun, Poland
- Department of Nephrology, Hypertension and Kidney Transplantation, Medical University of Lodz, 90-419 Lodz, Poland
| | - Stanisława Bazan-Socha
- Saventic Foundation, Polna 66/12 Street, 87-100 Torun, Poland
- Department of Internal Medicine, Faculty of Medicine, Jagiellonian University Medical College, 31-008 Krakow, Poland
| | - Michal J Dabrowski
- Saventic Health, Polna 66/12 Street, 87-100 Torun, Poland
- Computational Biology Group, Institute of Computer Science of the Polish Academy of Sciences, 01-248 Warsaw, Poland
| | - Grzegorz W Basak
- Saventic Health, Polna 66/12 Street, 87-100 Torun, Poland
- Department of Hematology, Transplantation and Internal Medicine, Medical University of Warsaw, 02-097 Warsaw, Poland
| |
Collapse
|
7
|
Whitlock RH, Nour-Mohammadi M, Curtis S, Komenda P, Bohm C, Collister D, Tangri N, Rigatto C. Magnitude of the Potential Screening Gap for Fabry Disease in
Manitoba: A Population-Based Retrospective Cohort Study. Can J Kidney Health Dis 2023; 10:20543581231162218. [PMID: 36970566 PMCID: PMC10031591 DOI: 10.1177/20543581231162218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 01/28/2023] [Indexed: 03/24/2023] Open
Abstract
Background: Fabry disease is a rare disorder caused by the deficient activity of
α-galactosidase A (GLA) that often leads to organ damage. Fabry disease can
be treated with enzyme replacement or pharmacological therapy, but due to
its rarity and nonspecific manifestations, it often goes undiagnosed. Mass
screening for Fabry disease is impractical; however, a targeted screening
program for high-risk individuals may uncover previously unknown cases. Objective: Our objective was to use population-level administrative health databases to
identify patients at high risk of Fabry disease. Design: Retrospective cohort study. Setting: Population-level health administrative databases housed at the Manitoba
Centre for Health Policy. Patients: All residents of Manitoba, Canada, between 1998 and 2018. Measurements: We ascertained the evidence of GLA testing in a cohort of patients at high
risk of Fabry disease. Methods: Individuals without a hospitalization or prescription indicative of Fabry
disease were included if they had evidence of 1 of 4 high-risk conditions
for Fabry disease: (1) ischemic stroke <45 years of age, (2) idiopathic
hypertrophic cardiomyopathy, (3) proteinuric chronic kidney disease or
kidney failure of unknown cause, or (4) peripheral neuropathy. Patients were
excluded if they had known contributing factors to these high-risk
conditions. Those who remained and had no prior GLA testing were assigned a
0% to 4.2% probability of having Fabry disease depending on their high-risk
condition and sex. Results: After applying exclusion criteria, 1386 individuals were identified as having
at least 1 high-risk clinical condition for Fabry disease in Manitoba. There
were 416 GLA tests conducted during the study period, and of those, 22 were
conducted in individuals with at least 1 high-risk condition. This leaves a
screening gap of 1364 individuals with a high-risk clinical condition for
Fabry disease in Manitoba who have not been tested. At the end of the study
period, 932 of those individuals were still alive and residing in Manitoba,
and if screened today, we expect between 3 and 18 would test positive for
Fabry disease. Limitations: The algorithms we used to identify our patients have not been validated
elsewhere. Diagnoses of Fabry disease, idiopathic hypertrophic
cardiomyopathy, and peripheral neuropathy were only available via
hospitalizations and not physician claims. We were only able to capture GLA
testing processed through public laboratories. Patients identified to be at
high risk of Fabry disease by the algorithm did not undergo GLA testing due
to a clinical rationale that we were unable to capture. Conclusions: Administrative health databases may be a useful tool to identify patients at
higher risk of Fabry disease or other rare conditions. Further directions
include designing a program to screen high-risk individuals for Fabry
disease as identified by our administrative data algorithms.
Collapse
Affiliation(s)
- Reid H. Whitlock
- Chronic Disease Innovation Centre,
Seven Oaks General Hospital, Winnipeg, MB, Canada
- Reid H. Whitlock, Chronic Disease
Innovation Centre, Seven Oaks General Hospital, 2LB19-2300 McPhillips Street,
Winnipeg, MB R2V 3M3, Canada.
| | - Mohammad Nour-Mohammadi
- Chronic Disease Innovation Centre,
Seven Oaks General Hospital, Winnipeg, MB, Canada
- Department of Internal Medicine,
University of Manitoba, Winnipeg, Canada
| | - Sarah Curtis
- Chronic Disease Innovation Centre,
Seven Oaks General Hospital, Winnipeg, MB, Canada
| | - Paul Komenda
- Chronic Disease Innovation Centre,
Seven Oaks General Hospital, Winnipeg, MB, Canada
- Department of Internal Medicine,
University of Manitoba, Winnipeg, Canada
| | - Clara Bohm
- Chronic Disease Innovation Centre,
Seven Oaks General Hospital, Winnipeg, MB, Canada
- Department of Internal Medicine,
University of Manitoba, Winnipeg, Canada
| | - David Collister
- Chronic Disease Innovation Centre,
Seven Oaks General Hospital, Winnipeg, MB, Canada
- Department of Medicine, University of
Alberta, Edmonton, Canada
| | - Navdeep Tangri
- Chronic Disease Innovation Centre,
Seven Oaks General Hospital, Winnipeg, MB, Canada
- Department of Internal Medicine,
University of Manitoba, Winnipeg, Canada
| | - Claudio Rigatto
- Chronic Disease Innovation Centre,
Seven Oaks General Hospital, Winnipeg, MB, Canada
- Department of Internal Medicine,
University of Manitoba, Winnipeg, Canada
| |
Collapse
|
8
|
Prevalence of Fabry Disease in patients with left ventricular hypertrophy in Turkey: Multicenter study (LVH-TR subgroup analysis). THE INTERNATIONAL JOURNAL OF CARDIOVASCULAR IMAGING 2023; 39:1143-1155. [PMID: 36920623 DOI: 10.1007/s10554-023-02826-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 03/03/2023] [Indexed: 03/16/2023]
Abstract
PURPOSE In this prospective study we aimed to determine the rate of Fabry Disease (FD) in patients with left ventricular hypertrophy (LVH), and to evaluate the clinical presentations of patients with FD in a comprehensive manner. In addition, we aimed to raise awareness about this issue by allowing early diagnosis and treatment of FD. METHODS Our study was planned as national, multicenter, observational. Totally 22 different centers participated in this study. A total of 886 patients diagnosed with LVH by echocardiography (ECHO) were included in the study. Demographic data, biochemical parameters, electrocardiography (ECG) findings, ECHO findings, treatments and clinical findings of the patients were recorded. Dry blood samples were sent from male patients with suspected FD. The α-Gal A enzyme level was checked and genetic testing was performed in patients with low enzyme levels. Female patients suspected of FD were genetically tested with the GLA Gene Mutation Analysis. RESULTS FD was suspected in a total of 143 (16.13%) patients included in the study. The α-Gal-A enzyme level was found to be low in 43 (4.85%) patients whom enzyme testing was requested. GLA gene mutation analysis was positive in 14 (1.58%) patients. Male gender, E/e' mean ,and severe hypertrophy are important risk factor for FD. CONCLUSION In daily cardiology practice, FD should be kept in mind not only in adult patients with unexplained LVH but also in the entire LVH population. Dry blood test (DBS) should be considered in high-risk patients, and mutation analysis should be considered in required patients.
Collapse
|
9
|
Abstract
The lysosomal storage disorders are hereditary metabolic disorders characterized by autosomal recessive inheritance, mainly caused by deficiency of an enzyme responsible for the intra-lysosomal breakdown of various substrates and products of cellular metabolism. This chapter examines the underlying defects, clinical manifestations, and provides context for the expected clinical outcome of various available therapy options employing enzyme replacement therapy, hematopoietic stem cell transplantation, substrate reduction, and enzyme enhancement therapies.
Collapse
Affiliation(s)
- Gregory M Pastores
- Department of Medicine (Clinical Genetics), National Center for Inherited Metabolic Disorders, Mater Misericordiae University Hospital, Dublin, Ireland; Department of Medicine (Genetics), University College of Dublin School of Medicine, Dublin, Ireland.
| |
Collapse
|
10
|
Alfen F, Putscher E, Hecker M, Zettl UK, Hermann A, Lukas J. Abnormal Pre-mRNA Splicing in Exonic Fabry Disease-Causing GLA Mutations. Int J Mol Sci 2022; 23:ijms232315261. [PMID: 36499585 PMCID: PMC9737616 DOI: 10.3390/ijms232315261] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/29/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022] Open
Abstract
Fabry disease (FD) is a rare X-linked disease due to a multiverse of disrupting mutations within the GLA gene encoding lysosomal α-galactosidase A (AGAL). Absent AGAL activity causes the accumulation of complex glycosphingolipids inside of lysosomes in a variety of cell types and results in a progressive multisystem disease. Known disease-associated point mutations in protein-coding gene regions usually cause translational perturbations and result in premature chain termination, punctual amino acid sequence alterations or overall altered sequence alterations downstream of the mutation site. However, nucleotide exchanges at the border between introns and exons can affect splicing behavior and lead to abnormal pre-mRNA processing. Prediction with the Human Splicing Finder (HSF) revealed an indication of a significant change in splicing-relevant information for some known FD-associated GLA mutations. To experimentally determine the extent of the change, we made use of a minigene reporter assay and verified alternative splicing events for the exonic mutations c.194G>T and c.358C>G, which led to the usage of alternative donor splice sites at exon 1 and exon 2, respectively. In addition, the mutations c.548G>T and c.638A>T led to significant exon 4 skipping. We conclude that splicing phenotype analysis should be employed in the in vitro analysis of exonic GLA gene mutations, since abnormal splicing may result in a reduction of enzyme activity and alter the amenability for treatment with pharmacological chaperone (PC).
Collapse
Affiliation(s)
- Franziska Alfen
- Translational Neurodegeneration Section “Albrecht-Kossel”, Department of Neurology, University Medical Center Rostock, 18147 Rostock, Germany
| | - Elena Putscher
- Neuroimmunology Section, Department of Neurology, University Medical Center Rostock, University of Rostock, 18147 Rostock, Germany
| | - Michael Hecker
- Neuroimmunology Section, Department of Neurology, University Medical Center Rostock, University of Rostock, 18147 Rostock, Germany
| | - Uwe Klaus Zettl
- Neuroimmunology Section, Department of Neurology, University Medical Center Rostock, University of Rostock, 18147 Rostock, Germany
| | - Andreas Hermann
- Translational Neurodegeneration Section “Albrecht-Kossel”, Department of Neurology, University Medical Center Rostock, 18147 Rostock, Germany
- Center for Transdisciplinary Neurosciences Rostock (CTNR), University Medical Center Rostock, University of Rostock, 18147 Rostock, Germany
- Deutsches Zentrum für Neurodegenerative (DZNE) Rostock/Greifswald, 18147 Rostock, Germany
| | - Jan Lukas
- Translational Neurodegeneration Section “Albrecht-Kossel”, Department of Neurology, University Medical Center Rostock, 18147 Rostock, Germany
- Center for Transdisciplinary Neurosciences Rostock (CTNR), University Medical Center Rostock, University of Rostock, 18147 Rostock, Germany
- Correspondence:
| |
Collapse
|
11
|
Moiseev S, Tao E, Moiseev A, Bulanov N, Filatova E, Fomin V, Germain DP. The Benefits of Family Screening in Rare Diseases: Genetic Testing Reveals 165 New Cases of Fabry Disease among At-Risk Family Members of 83 Index Patients. Genes (Basel) 2022; 13:genes13091619. [PMID: 36140787 PMCID: PMC9498688 DOI: 10.3390/genes13091619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 08/31/2022] [Accepted: 09/01/2022] [Indexed: 11/27/2022] Open
Abstract
Background: Fabry disease (FD, OMIM #301500) is a rare, progressive, X-linked, inherited genetic disease caused by a functional deficiency of lysosomal α-galactosidase, leading to the accumulation of glycosphingolipids in virtually all of the body’s cell types and fluids. Patients with rare genetic diseases and non-specific symptoms often experience substantial diagnostic delays, which can negatively impact the prompt initiation of treatment. If FD is not treated specifically, end organ damage (such as chronic renal failure, hypertrophic cardiomyopathy with arrhythmia, and strokes) impairs quality of life and reduces life expectancy. Patients and Methods: For 83 consecutive patients with FD referred to the Russian reference center for lysosomal storage diseases, family trees were built and genetic testing (cascade genotyping) was offered to family members. Results: The pathogenic GLA variant associated with FD was identified for all 83 probands. Family testing using cascade genotyping enabled the identification of 165 additional cases of FD among the tested 331 at-risk family members. Discussion: This is the first study to have described family screening in a large Russian cohort of patients with FD and chronic kidney disease. Raising awareness of FD among clinicians is important for earlier diagnosis and specific treatment.
Collapse
Affiliation(s)
- Sergey Moiseev
- Tareev Clinic of Internal Disease, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
- Faculty of Medicine, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Ekaterina Tao
- Tareev Clinic of Internal Disease, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
| | - Alexey Moiseev
- Tareev Clinic of Internal Disease, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
- Faculty of Medicine, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Nikolay Bulanov
- Tareev Clinic of Internal Disease, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
| | - Ekaterina Filatova
- Tareev Clinic of Internal Disease, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
| | - Victor Fomin
- Tareev Clinic of Internal Disease, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
| | - Dominique P. Germain
- Geneo Referral Centre for Fabry Disease, Filière G2M, MetabERN European Reference Network, Paris-Saclay University, 92380 Garches, France
- Second Department of Internal Medicine, First Faculty of Medicine, Charles University, 12808 Prague, Czech Republic
- Faculty of Medicine, University of Puthisastra, Phnom Penh 12211, Cambodia
- Division of Medical Genetics, University of Versailles, 78180 Montigny, France
- Correspondence:
| |
Collapse
|
12
|
Elsaid HO, Furriol J, Blomqvist M, Diswall M, Leh S, Gharbi N, Anonsen JH, Babickova J, Tøndel C, Svarstad E, Marti HP, Krause M. Reduced α-galactosidase A activity in zebrafish (Danio rerio) mirrors distinct features of Fabry nephropathy phenotype. Mol Genet Metab Rep 2022; 31:100851. [PMID: 35242583 PMCID: PMC8857658 DOI: 10.1016/j.ymgmr.2022.100851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 02/13/2022] [Indexed: 10/28/2022] Open
|
13
|
Córdoba KM, Jericó D, Sampedro A, Jiang L, Iraburu MJ, Martini PGV, Berraondo P, Avila MA, Fontanellas A. Messenger RNA as a personalized therapy: The moment of truth for rare metabolic diseases. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2022; 372:55-96. [PMID: 36064267 DOI: 10.1016/bs.ircmb.2022.03.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Inborn errors of metabolism (IEM) encompass a group of monogenic diseases affecting both pediatric and adult populations and currently lack effective treatments. Some IEM such as familial hypercholesterolemia or X-linked protoporphyria are caused by gain of function mutations, while others are characterized by an impaired protein function, causing a metabolic pathway blockage. Pathophysiology classification includes intoxication, storage and energy-related metabolic disorders. Factors specific to each disease trigger acute metabolic decompensations. IEM require prompt and effective care, since therapeutic delay has been associated with the development of fatal events including severe metabolic acidosis, hyperammonemia, cerebral edema, and death. Rapid expression of therapeutic proteins can be achieved hours after the administration of messenger RNAs (mRNA), representing an etiological solution for acute decompensations. mRNA-based therapy relies on modified RNAs with enhanced stability and translatability into therapeutic proteins. The proteins produced in the ribosomes can be targeted to specific intracellular compartments, the cell membrane, or be secreted. Non-immunogenic lipid nanoparticle formulations have been optimized to prevent RNA degradation and to allow safe repetitive administrations depending on the disease physiopathology and clinical status of the patients, thus, mRNA could be also an effective chronic treatment for IEM. Given that the liver plays a key role in most of metabolic pathways or can be used as bioreactor for excretable proteins, this review focuses on the preclinical and clinical evidence that supports the implementation of mRNA technology as a promising personalized strategy for liver metabolic disorders such as acute intermittent porphyria, ornithine transcarbamylase deficiency or glycogen storage disease.
Collapse
Affiliation(s)
- Karol M Córdoba
- Hepatology Program, Center for Applied Medical Research (CIMA), University of Navarra, Pamplona, Spain; Navarra Institute for Health Research (IDISNA), Pamplona, Spain
| | - Daniel Jericó
- Hepatology Program, Center for Applied Medical Research (CIMA), University of Navarra, Pamplona, Spain; Navarra Institute for Health Research (IDISNA), Pamplona, Spain
| | - Ana Sampedro
- Hepatology Program, Center for Applied Medical Research (CIMA), University of Navarra, Pamplona, Spain
| | - Lei Jiang
- Moderna Inc, Cambridge, MA, United States
| | - María J Iraburu
- Department of Biochemistry and Genetics. School of Sciences, University of Navarra, Pamplona, Spain
| | | | - Pedro Berraondo
- Navarra Institute for Health Research (IDISNA), Pamplona, Spain; Program of Immunology and Immunotherapy, CIMA-University of Navarra, Pamplona, Spain; Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
| | - Matías A Avila
- Hepatology Program, Center for Applied Medical Research (CIMA), University of Navarra, Pamplona, Spain; Navarra Institute for Health Research (IDISNA), Pamplona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain
| | - Antonio Fontanellas
- Hepatology Program, Center for Applied Medical Research (CIMA), University of Navarra, Pamplona, Spain; Navarra Institute for Health Research (IDISNA), Pamplona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain.
| |
Collapse
|
14
|
Ezgu F, Alpsoy E, Bicik Bahcebasi Z, Kasapcopur O, Palamar M, Onay H, Ozdemir BH, Topcuoglu MA, Tufekcioglu O. Expert opinion on the recognition, diagnosis and management of children and adults with Fabry disease: a multidisciplinary Turkey perspective. Orphanet J Rare Dis 2022; 17:90. [PMID: 35236382 PMCID: PMC8889663 DOI: 10.1186/s13023-022-02215-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 02/06/2022] [Indexed: 11/10/2022] Open
Abstract
This consensus statement by a panel of Fabry experts aimed to identify areas of consensus on conceptual, clinical and therapeutic aspects of Fabry disease (FD) and to provide guidance to healthcare providers on best practice in the management of pediatric and adult patients with FD. This consensus statement indicated the clinical heterogeneity of FD as well as a large number of pathogenic variants in the GLA gene, emphasizing a need for an individualized approach to patient care. The experts reached consensus on the critical role of a high index of suspicion in symptomatic patients and screening of certain at-risk groups to reveal timely and accurate diagnosis of FD along with an increased awareness of the treating physician about the different kinds of pathogenic variants and their clinical implications. The experts emphasized the crucial role of timely recognition of FD with minimal delay from symptom onset to definite diagnosis in better management of FD patients, given the likelihood of changing the disease's natural history, improving the patients' quality of life and the prognosis after enzyme replacement therapy (ERT) administered through a coordinated, multidisciplinary care approach. In this regard, this consensus document is expected to increase awareness among physicians about unique characteristics of FD to assist clinicians in recognizing FD with a well-established clinical suspicion consistent with pathogenic variants and gender-based heterogeneous clinical manifestations of FD and in translating this information into their clinical practice for best practice in the management of patients with FD.
Collapse
Affiliation(s)
- Fatih Ezgu
- Department of Pediatrics, Division of Pediatric Metabolism and Division of Pediatric Genetics, Gazi University Faculty of Medicine, 06560, Ankara, Turkey.
| | - Erkan Alpsoy
- Department of Dermatology, Akdeniz University Faculty of Medicine, Antalya, Turkey
| | - Zerrin Bicik Bahcebasi
- Clinic of Nephrology, Kartal Dr. Lutfu Kirdar Training and Research Hospital, Istanbul, Turkey
| | - Ozgur Kasapcopur
- Department of Pediatrics, Division of Pediatric Rheumatology, Istanbul University Cerrahpasa Faculty of Medicine, Istanbul, Turkey
| | - Melis Palamar
- Department of Ophthalmology, Ege University Faculty of Medicine, Izmir, Turkey
| | - Huseyin Onay
- Department of Medical Genetics, Ege University Faculty of Medicine, Izmir, Turkey
| | | | | | - Omac Tufekcioglu
- University of Health Sciences Department of Cardiology, Ankara City Hospital, Ankara, Turkey
| |
Collapse
|
15
|
Uribe-Ardila JA, Gamba-Rendon JF. Alpha-Galactosidase A Levels in Colombian Males with End-Stage Renal Disease: Ten Years of Selective Screening in Dried Blood Spots. JOURNAL OF INBORN ERRORS OF METABOLISM AND SCREENING 2022. [DOI: 10.1590/2326-4594-jiems-2021-0033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
|
16
|
A new approach to identifying patients with elevated risk for Fabry disease using a machine learning algorithm. Orphanet J Rare Dis 2021; 16:518. [PMID: 34930374 PMCID: PMC8686369 DOI: 10.1186/s13023-021-02150-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 12/06/2021] [Indexed: 11/26/2022] Open
Abstract
Background Fabry disease (FD) is a rare genetic disorder characterized by glycosphingolipid accumulation and progressive damage across multiple organ systems. Due to its heterogeneous presentation, the condition is likely significantly underdiagnosed. Several approaches, including provider education efforts and newborn screening, have attempted to address underdiagnosis of FD across the age spectrum, with limited success. Artificial intelligence (AI) methods present another option for improving diagnosis. These methods isolate common health history patterns among patients using longitudinal real-world data, and can be particularly useful when patients experience nonspecific, heterogeneous symptoms over time. In this study, the performance of an AI tool in identifying patients with FD was analyzed. The tool was calibrated using de-identified health record data from a large cohort of nearly 5000 FD patients, and extracted phenotypic patterns from these records. The tool then used this FD pattern information to make individual-level estimates of FD in a testing dataset. Patterns were reviewed and confirmed with medical experts. Results The AI tool demonstrated strong analytic performance in identifying FD patients. In out-of-sample testing, it achieved an area under the receiver operating characteristic curve (AUROC) of 0.82. Strong performance was maintained when testing on male-only and female-only cohorts, with AUROCs of 0.83 and 0.82 respectively. The tool identified small segments of the population with greatly increased prevalence of FD: in the 1% of the population identified by the tool as at highest risk, FD was 23.9 times more prevalent than in the population overall. The AI algorithm used hundreds of phenotypic signals to make predictions and included both familiar symptoms associated with FD (e.g. renal manifestations) as well as less well-studied characteristics. Conclusions The AI tool analyzed in this study performed very well in identifying Fabry disease patients using structured medical history data. Performance was maintained in all-male and all-female cohorts, and the phenotypic manifestations of FD highlighted by the tool were reviewed and confirmed by clinical experts in the condition. The platform’s analytic performance, transparency, and ability to generate predictions based on existing real-world health data may allow it to contribute to reducing persistent underdiagnosis of Fabry disease.
Collapse
|
17
|
Yazd HS, Bazargani SF, Vanbeek CA, King-Morris K, Heldermon C, Segal MS, Clapp WL, Garrett TJ. LC-MS lipidomics of renal biopsies for the diagnosis of Fabry disease. J Mass Spectrom Adv Clin Lab 2021; 22:71-78. [PMID: 34918004 PMCID: PMC8646168 DOI: 10.1016/j.jmsacl.2021.11.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 11/17/2021] [Accepted: 11/20/2021] [Indexed: 11/16/2022] Open
Abstract
Fabry is an X-linked lysosomal storage disease with deficiency in α-galactosidase. This deficiency results in the accumulation of glycosphinogolipids. Diagnosis is often made by analysis of globotriaosylceramide in fluids and tissues. Fabry is often misdiagnosed in female patients due to residual enzyme activity. Lipidomics by LC-HRMS enables identification of new biomarkers in Fabry.
Introduction Lipidomics analysis or lipid profiling is a system-based analysis of all lipids in a sample to provide a comprehensive understanding of lipids within a biological system. In the last few years, lipidomics has made it possible to better understand the metabolic processes associated with several rare disorders and proved to be a powerful tool for their clinical investigation. Fabry disease is a rare X-linked lysosomal storage disorder (LSD) caused by a deficiency in α-galactosidase A (α-GAL A). This deficiency results in the progressive accumulation of glycosphingolipids, mostly globotriaosylceramide (Gb3), globotriaosylsphingosine (lyso-Gb3), as well as galabiosylceramide (Ga2) and their isoforms/analogs in the vascular endothelium, nerves, cardiomyocytes, renal glomerular podocytes, and biological fluids. Objectives The primary objective of this study was to evaluate lipidomic signatures in renal biopsies to help understand variations in Fabry disease markers that could be used in future diagnostic tests. Methods Lipidomic analysis was performed by ultra-high pressure liquid chromatography-high-resolution mass spectrometry (UHPLC-HRMS) on kidney biopsies that were left over after clinical pathology analysis to diagnose Fabry disease. Results We employed UHPLC-HRMS lipidomics analysis on the renal biopsy of a patient suspicious for Fabry disease. Our result confirmed α-GAL A enzyme activity declined in this patient since a Ga2-related lipid biomarker was substantially higher in the patient's renal tissue biopsy compared with two controls. This suggests this patient has a type of LSD that could be non-classical Fabry disease. Conclusion This study shows that lipidomics analysis is a valuable tool for rare disorder diagnosis, which can be conducted on leftover tissue samples without disrupting normal patient care.
Collapse
|
18
|
Dinu IR, Firu ŞG. Fabry disease - current data and therapeutic approaches. ROMANIAN JOURNAL OF MORPHOLOGY AND EMBRYOLOGY 2021; 62:5-11. [PMID: 34609404 PMCID: PMC8597377 DOI: 10.47162/rjme.62.1.01] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Fabry disease represents an X-linked inherited disorder resulting in the accumulation of globotriaosylceramide (Gb3). This review explains the clinical manifestations and the possible therapies for this condition. Fabry disease is considered the second most frequent lysosomal storage disease. More than 1000 mutations of the galactosidase alpha (GLA) gene associated with this disorder have been identified. Pain, either episodic crises or chronic pain, is one of the earliest symptoms in Fabry disease. Gastrointestinal, ocular, ear or skeletal manifestations may complete the clinical picture. Cardiac and renal involvements are the most severe complications leading to organ failure and death. The cerebrovascular lesions may result in severe symptoms including stroke at younger ages. The diagnosis of Fabry disease may be put by enzymatic assays of the α-galactosidase A (AGAL-A) activity in plasma or leukocytes but genetic analysis remains the “gold standard” in identifying the precise mutation and even guiding the treatment. Enzyme replacement therapy (ERT) was the first step in treating subjects with Fabry disease. It proved important decrease of the number of sever clinical events and reduction of symptoms. Chemical chaperone therapy has many advantages including oral administration and was already approved in Europe and US, but it is suitable only for subjects with amenable mutations. Gene therapies (either ex vivo or in vivo) promise to represent a new era for many disorders including Fabry disease, the preliminary data being encouraging. Although many steps were taken in understanding the pathogeny of Fabry disease, future research is needed especially in the field of therapeutic approaches.
Collapse
Affiliation(s)
- Ilie Robert Dinu
- Department of Nephrology, University of Medicine and Pharmacy of Craiova, Romania;
| | | |
Collapse
|
19
|
Atherosclerosis in Fabry Disease-A Contemporary Review. J Clin Med 2021; 10:jcm10194422. [PMID: 34640440 PMCID: PMC8509593 DOI: 10.3390/jcm10194422] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/22/2021] [Accepted: 09/23/2021] [Indexed: 12/02/2022] Open
Abstract
Fabry disease (FD) is a lysosomal storage disorder characterised by a deficiency in the enzyme α-galactosidase A resulting in sphingolipid deposition which causes progressive cardiac, renal, and cerebral manifestations. The case illustrates a patient with FD who died suddenly, and medical examination demonstrated myocardial scarring and prior infarction. Angina is a frequent symptom in FD. Our own data are consistent with registry data indicating a high prevalence of risk factors for coronary artery disease (CAD) in FD that may accelerate conventional atherosclerosis. Patients with FD also have a higher high-density lipoprotein (HDL)/total cholesterol (T-Chol) ratio which may further accelerate atherosclerosis through expression of early atherosclerotic markers. Patients with FD may develop CAD both via classical atherosclerosis and through formation of thickened fibrocellular intima containing fibroblasts with storage of sphingolipids. Both mechanisms occurring together may accelerate coronary stenosis, as well as alter myocardial blood flow. Our data supports limited data that, although coronary flow may be reduced, the prevalence of epicardial coronary stenosis is low in FD. Microvascular dysfunction and arterial wall stress from sphingolipid deposition may form reactive oxygen species (ROS) and myeloperoxidase (MPO), key atherosclerotic mediators. Reduced myocardial blood flow in FD has also been demonstrated using numerous imaging modalities suggesting perfusion mismatch. This review describes the above mechanisms in detail, highlighting the importance of modifying cardiovascular risk factors in FD patients who likely develop accelerated atherosclerosis compared to the general population.
Collapse
|
20
|
Rajan JN, Ireland K, Johnson R, Stepien KM. Review of Mechanisms, Pharmacological Management, Psychosocial Implications, and Holistic Treatment of Pain in Fabry Disease. J Clin Med 2021; 10:4168. [PMID: 34575277 PMCID: PMC8472766 DOI: 10.3390/jcm10184168] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 09/03/2021] [Accepted: 09/10/2021] [Indexed: 12/27/2022] Open
Abstract
Fabry disease is a progressive X-linked lysosomal storage disease caused by a mutation in the GLA gene, encoding the lysosomal hydrolase α-galactosidase A. The consequent reduced enzyme activity results in the toxic accumulation of glycosphingolipids, particularly globortriaosylceramide (Gb3 or GL3), in blood vessels, renal epithelia, myocardium, peripheral nervous system, cornea and skin. Neuropathic pain is the most common manifestation of Fabry disease and can be extremely debilitating. This often develops during childhood and presents with episodes of burning and sharp pain in the hands and feet, especially during exercise and it is worse with increased heat or fever. It is thought to be due to ischaemic injury and metabolic failure, leading to the disruption of neuronal membranes and small fibre neuropathy, caused by a reduced density of myelinated Aδ and unmyelinated C-fibres and alterations in the function of ion channels, mediated by Gb3 and lyso Gb3. It is important to confirm small fibre neuropathy before any Fabry disease treatment modality is considered. There is a clinical need for novel techniques for assessing small fibre function to improve detection of small fibre neuropathy and expand the role of available therapies. The current Fabry disease guidelines are in favour of pharmacological management as the first-line treatment for pain associated with Fabry disease. Refractory cases would benefit from a rehabilitation approach with interdisciplinary input, including medical, physiotherapy and psychological disciplines and including a Pain Management Programme.
Collapse
Affiliation(s)
- Jonathan Niranjan Rajan
- Pain Medicine and Anaesthesia Department, Salford Royal NHS Foundation Trust, Stott Lane, Salford M6 8HD, UK;
| | - Katharine Ireland
- Pain Medicine and Anaesthesia Department, Salford Royal NHS Foundation Trust, Stott Lane, Salford M6 8HD, UK;
| | - Richard Johnson
- Manchester & Salford Pain Centre, Salford Royal NHS Foundation Trust, Stott Lane, Salford M6 8HD, UK;
| | - Karolina M. Stepien
- Adult Inherited Metabolic Diseases, Salford Royal NHS Foundation Trust, Stott Lane, Salford M6 8HD, UK;
- Division of Diabetes, Endocrinology & Gastroenterology, University of Manchester, Manchester M13 9PL, UK
| |
Collapse
|
21
|
X-chromosome inactivation patterns in females with Fabry disease examined by both ultra-deep RNA sequencing and methylation-dependent assay. Clin Exp Nephrol 2021; 25:1224-1230. [PMID: 34128148 DOI: 10.1007/s10157-021-02099-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Accepted: 06/09/2021] [Indexed: 01/04/2023]
Abstract
BACKGROUND Fabry disease is an X-linked inherited lysosomal storage disorder caused by mutations in the gene encoding α-galactosidase A. Males are usually severely affected, while females have a wide range of disease severity. This variability has been assumed to be derived from organ-dependent skewed X-chromosome inactivation (XCI) patterns in each female patient. Previous studies examined this correlation using the classical methylation-dependent method; however, conflicting results were obtained. This study was established to ascertain the existence of skewed XCI in nine females with heterozygous pathogenic variants in the GLA gene and its relationship to the phenotypes. METHODS We present five female patients from one family and four individual female patients with Fabry disease. In all cases, heterozygous pathogenic variants in the GLA gene were detected. The X-chromosome inactivation patterns in peripheral blood leukocytes and cells of urine sediment were determined by both classical methylation-dependent HUMARA assay and ultra-deep RNA sequencing. Fabry Stabilization Index was used to determine the clinical severity. RESULTS Skewed XCI resulting in predominant inactivation of the normal allele was observed only in one individual case with low ⍺-galactosidase A activity. In the remaining cases, no skewing was observed, even in the case with the highest total severity score (99.2%). CONCLUSION We conclude that skewed XCI could not explain the severity of female Fabry disease and is not the main factor in the onset of various clinical symptoms in females with Fabry disease.
Collapse
|
22
|
Germain DP, Moiseev S, Suárez-Obando F, Al Ismaili F, Al Khawaja H, Altarescu G, Barreto FC, Haddoum F, Hadipour F, Maksimova I, Kramis M, Nampoothiri S, Nguyen KN, Niu DM, Politei J, Ro LS, Vu Chi D, Chen N, Kutsev S. The benefits and challenges of family genetic testing in rare genetic diseases-lessons from Fabry disease. Mol Genet Genomic Med 2021; 9:e1666. [PMID: 33835733 PMCID: PMC8172211 DOI: 10.1002/mgg3.1666] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 02/26/2021] [Accepted: 03/01/2021] [Indexed: 12/17/2022] Open
Abstract
Background Family genetic testing of patients newly diagnosed with a rare genetic disease can improve early diagnosis of family members, allowing patients to receive disease‐specific therapies when available. Fabry disease, an X‐linked lysosomal storage disorder caused by pathogenic variants in GLA, can lead to end‐stage renal disease, cardiac arrhythmias, and stroke. Diagnostic delays are common due to the rarity of the disease and non‐specificity of early symptoms. Newborn screening and screening of at‐risk populations, (e.g., patients with hypertrophic cardiomyopathy or undiagnosed nephropathies) can identify individuals with Fabry disease. Subsequent cascade genotyping of family members may disclose a greater number of affected individuals, often at younger age than they would have been diagnosed otherwise. Methods We conducted a literature search to identify all published data on family genetic testing for Fabry disease, and discussed these data, experts’ own experiences with family genetic testing, and the barriers to this type of screening that are present in their respective countries. Results There are potential barriers that make implementation of family genetic testing challenging in some countries. These include associated costs and low awareness of its importance, and cultural and societal issues. Regionally, there are barriers associated with population educational levels, national geography and infrastructures, and a lack of medical geneticists. Conclusion In this review, the worldwide experience of an international group of experts of Fabry disease highlights the issues faced in the family genetic testing of patients affected with rare genetic diseases.
Collapse
Affiliation(s)
- Dominique P Germain
- French Referral Center for Fabry disease, Division of Medical Genetics, University of Versailles, Montigny, France.,First Faculty of Medicine, Charles University, Prague, Czech Republic.,Faculty of Medicine, University of Puthisastra, Phnom Penh, Cambodia.,MetabERN Center for Rare Diseases, APHP - Paris Saclay University, Paris, France
| | - Sergey Moiseev
- Tareev Clinic of Internal Diseases, Sechenov First Moscow State Medical University, Moscow, Russia
| | - Fernando Suárez-Obando
- Instituto de Genética Humana, Facultad de Medicina, Pontificia Universidad Javeriana, and Servicio de Genética, Hospital Universitario San Ignacio, Bogotá, Colombia
| | | | | | | | - Fellype C Barreto
- Service of Nephrology, Department of Internal Medicine, Federal University of Paraná, Curitiba, Brazil
| | - Farid Haddoum
- Centre Hospitalo-Universitaire Mustapha, Algiers, Algeria
| | | | | | | | - Sheela Nampoothiri
- Department of Pediatric Genetics, Amrita Institute of Medical Sciences & Research Centre, Kochi, India
| | - Khanh Ngoc Nguyen
- Center for Rare Diseases and Newborn Screening, Vietnam National Children's Hospital, Hanoi, Vietnam
| | - Dau-Ming Niu
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Pediatrics, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Juan Politei
- Neurology Department, Laboratorio Neuroquímica Dr Néstor Chamoles Buenos Aires, Buenos Aires, Argentina
| | - Long-Sun Ro
- Department of Neurology, Chang Gung Memorial Hospital-Linkou Medical Center, Taoyuan, Taiwan
| | - Dung Vu Chi
- Center for Rare Diseases and Newborn Screening, Vietnam National Children's Hospital, Hanoi, Vietnam
| | - Nan Chen
- Department of Nephrology, Institute of Nephrology, Ruijin Hospital, The Medical School of Shanghai Jiao Tong University, Shanghai, China
| | - Sergey Kutsev
- Research Centre for Medical Genetics, Moscow, Russia
| |
Collapse
|
23
|
Gastrointestinal Involvement in Anderson-Fabry Disease: A Narrative Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18063320. [PMID: 33807115 PMCID: PMC8005161 DOI: 10.3390/ijerph18063320] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/16/2021] [Accepted: 03/19/2021] [Indexed: 12/31/2022]
Abstract
Anderson-Fabry disease (FD) is an X-linked lysosomal storage disorder leading to a wide array of clinical manifestations. Among these, gastrointestinal (GI) symptoms such as abdominal pain, bloating, and diarrhea affect about half of the FD adults and more than half of FD children. GI symptoms could be the first manifestation of FD; however, being non-specific, they overlap with the clinical picture of other conditions, such as irritable bowel syndrome and inflammatory bowel disease. This common overlap is the main reason why FD patients are often unrecognized and diagnosis is delayed for many years. The present narrative review is aimed to promote awareness of the GI manifestations of FD amongst general practitioners and specialists and highlight the latest findings of this rare condition including diagnostic tools and therapies. Finally, we will discuss some preliminary data on a patient presenting with GI symptoms who turned to be affected by a variant of uncertain significance of alpha-galactosidase (GLA) gene.
Collapse
|
24
|
Sachau J, Kersebaum D, Baron R, Dickenson AH. Unusual Pain Disorders - What Can Be Learned from Them? J Pain Res 2021; 13:3539-3554. [PMID: 33758536 PMCID: PMC7980038 DOI: 10.2147/jpr.s287603] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 02/18/2021] [Indexed: 12/13/2022] Open
Abstract
Pain is common in many different disorders and leads to a significant reduction in quality of life in the affected patients. Current treatment options are limited and often result in insufficient pain relief, partly due to the incomplete understanding of the underlying pathophysiological mechanisms. The identification of these pathomechanisms is therefore a central object of current research. There are also a number of rare pain diseases, that are generally little known and often undiagnosed, but whose correct diagnosis and examination can help to improve the management of pain disorders in general. In some of these unusual pain disorders like sodium-channelopathies or sensory modulation disorder the underlying pathophysiological mechanisms have only recently been unravelled. These mechanisms might serve as pharmacological targets that may also play a role in subgroups of other, more common pain diseases. In other unusual pain disorders, the identification of pathomechanisms has already led to the development of new drugs. A completely new therapeutic approach, the gene silencing, can even stop progression in hereditary transthyretin amyloidosis and porphyria, ie in pain diseases that would otherwise be rapidly fatal if left untreated. Thus, pain therapists and researchers should be aware of these rare and unusual pain disorders as they offer the unique opportunity to study mechanisms, identify new druggable targets and finally because early diagnosis might save many patient lives.
Collapse
Affiliation(s)
- Juliane Sachau
- Division of Neurological Pain Research and Therapy, Department of Neurology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, 24105, Germany
| | - Dilara Kersebaum
- Division of Neurological Pain Research and Therapy, Department of Neurology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, 24105, Germany
| | - Ralf Baron
- Division of Neurological Pain Research and Therapy, Department of Neurology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, 24105, Germany
| | - Anthony H Dickenson
- Department of Neuroscience, Physiology and Pharmacology, University College London, London, WC1E 6BT, UK
| |
Collapse
|
25
|
Reversal of the Inflammatory Responses in Fabry Patient iPSC-Derived Cardiovascular Endothelial Cells by CRISPR/Cas9-Corrected Mutation. Int J Mol Sci 2021; 22:ijms22052381. [PMID: 33673551 PMCID: PMC7956852 DOI: 10.3390/ijms22052381] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 02/20/2021] [Accepted: 02/22/2021] [Indexed: 11/23/2022] Open
Abstract
The late-onset type of Fabry disease (FD) with GLA IVS4 + 919G > A mutation has been shown to lead to cardiovascular dysfunctions. In order to eliminate variations in other aspects of the genetic background, we established the isogenic control of induced pluripotent stem cells (iPSCs) for the identification of the pathogenetic factors for FD phenotypes through CRISPR/Cas9 genomic editing. We adopted droplet digital PCR (ddPCR) to efficiently capture mutational events, thus enabling isolation of the corrected FD from FD-iPSCs. Both of these exhibited the characteristics of pluripotency and phenotypic plasticity, and they can be differentiated into endothelial cells (ECs). We demonstrated the phenotypic abnormalities in FD iPSC-derived ECs (FD-ECs), including intracellular Gb3 accumulation, autophagic flux impairment, and reactive oxygen species (ROS) production, and these abnormalities were rescued in isogenic control iPSC-derived ECs (corrected FD-ECs). Microarray profiling revealed that corrected FD-derived endothelial cells reversed the enrichment of genes in the pro-inflammatory pathway and validated the downregulation of NF-κB and the MAPK signaling pathway. Our findings highlighted the critical role of ECs in FD-associated vascular dysfunctions by establishing a reliable isogenic control and providing information on potential cellular targets to reduce the morbidity and mortality of FD patients with vascular complications.
Collapse
|
26
|
Reynolds TM, Tylee KL, Booth KL, Wierzbicki AS. Identification of patients with Fabry disease using routine pathology results: PATHFINDER (eGFR) study. Int J Clin Pract 2021; 75:e13672. [PMID: 32777123 DOI: 10.1111/ijcp.13672] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 08/06/2020] [Indexed: 12/01/2022] Open
Abstract
AIMS Lysosomal α-galactosidase A deficiency (Fabry disease (FD)) was considered an X-linked recessive disorder but is now viewed as a variable penetrance dominant trait. The prevalence of FD is 1 in 40 000-117 000 but the ascertainment of late-onset cases and degree of female penetrance makes this unclear. Its prevalence in the general population, especially in patients with abnormal renal function is unclear. This study attempted to identify the prevalence of FD in patients with abnormal renal function results from laboratory databases. METHODS Electronic laboratory databases were interrogated to identify from clinical biochemistry records patients with a phenotype of reduced estimated glomerular filtration rate categorised by age on one occasion or more over a 3-year time interval. Patients were recalled and a dried blood spot sample was collected for the determination of α-galactosidase A activity by fluorimetric enzyme assay in men and mass spectrometry assays of α-galactosidase A and lyso-globotriaosylceramide (lyso-GL-3) concentrations in women. RESULTS Samples were obtained from 1084 patients identified with reduced renal function. No cases of FD were identified in 505 men. From 579 women, one subject with reduced α-galactosidase activity (1.5 µmol/L/h) and increased Lyso-GL-3 (5.5 ng/mL) was identified and shown to be heterozygous for a likely FD pathogenic variant (GLA c.898C>T; p.L300F; Leu300Phe). It was later confirmed that she was a relative of a known affected patient. CONCLUSIONS Pathology databases hold routine information that can be used to identify patients with inherited errors of metabolism. Biochemical screening using reduced eGFR alone has a low yield for unidentified cases of Fabry Disease.
Collapse
Affiliation(s)
- Tim M Reynolds
- Clinical Chemistry, Queen's Hospital, Burton-on-Trent, UK
| | - Karen L Tylee
- Willink Biochemical Genetics Unit, Central Manchester University Hospitals NHS Foundation Trust, Manchester, UK
| | - Kathryn L Booth
- Willink Biochemical Genetics Unit, Central Manchester University Hospitals NHS Foundation Trust, Manchester, UK
| | | |
Collapse
|
27
|
Ratio of Fabry disease in patients with idiopathic left ventricular hypertrophy: A single-center study in Turkey. Anatol J Cardiol 2020; 23:79-85. [PMID: 32011328 PMCID: PMC7040871 DOI: 10.14744/anatoljcardiol.2019.84782] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
OBJECTIVE Fabry disease (FD) is a progressive, X-linked inherited disorder of glycosphingolipid metabolism which arises due to deficient or absent activity of lysosomal α-galactosidase A (α-Gal A). This may be associated with increased left ventricular (LV) wall thickness and may mimic the morphological features of hypertrophic cardiomyopathy. The purpose of this study was to define the ratio of occurrence of FD to the manifestation of unexplained left ventricular hypertrophy (LVH). METHODS We studied a prospectively assembled a consecutive cohort of 190 patients with unexplained LVH on echocardiography. The criterion for LVH diagnosis was a maximum LV wall thickness of 13 mm or greater. All patients were tested for mutations in the GLA gene. RESULTS The majority of patients were male (n=119, 63%) and the mean patient age was 47.2±115 years. In 190 patients diagnosed with LVH, we identified 2 patients (1.05%) with documented GLA mutations [c.427G>A (p.A143T)(p.Ala143Thr)] and [c.937G>T (p.D313Y)(p.Asp313Tyr)]. After the family screening, 3 additional patients with FD were identified in 2 families, including 5 individuals who are now receiving enzyme replacement therapy. CONCLUSION We identified 2 index patients with FD and unexplained LVH. Cardiologists should, therefore, be aware of FD in cases of unexplained LVH. Family screening is crucial for the earlier identification of unaffected new patients who may benefit from enzyme replacement therapy.
Collapse
|
28
|
Yoshida S, Kido J, Sawada T, Momosaki K, Sugawara K, Matsumoto S, Endo F, Nakamura K. Fabry disease screening in high-risk populations in Japan: a nationwide study. Orphanet J Rare Dis 2020; 15:220. [PMID: 32843101 PMCID: PMC7448968 DOI: 10.1186/s13023-020-01494-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 08/05/2020] [Indexed: 02/06/2023] Open
Abstract
Background Fabry disease (FD) is a X-linked inherited disorder caused by mutations in the GLA gene, which results in the deficiency of α-galactosidase A (α-Gal A). This leads to the progressive accumulation of metabolites, which can cause multisystemic dysfunction. A recent screening study among neonates reported an increase in the incidence of FD, and numerous FD patients remain undiagnosed or even misdiagnosed. Therefore, this study aimed to identify patients with FD by performing high-risk screening in 18,135 individuals, enrolled from October 2006 to March 2019, with renal, cardiac, or neurological manifestations from all prefectures in Japan. A total of 601 hospitals participated in this study. Results Low α-Gal A activity was detected in 846 individuals, with 224 of them diagnosed with FD by GLA sequencing. Cases with a family history of FD (n = 64) were also subjected to sequencing, without α-Gal A assay, as per individual request, and 12 of them were diagnosed with a variant of FD. A total of 236 patients with FD (97 males and 139 females) were identified from among 18,199 participants. A total of 101 GLA variants, including 26 novel variants, were detected in the 236 patients with FD from 143 families, with 39 amenable variants (39%) and 79 of the 236 patients (33%) suitable for migalastat treatment. Conclusions From among 18,199 participants, 101 GLA variants, including 26 novel variants, were identified in the 236 patients with FD from 143 families. Migalastat was identified as a suitable treatment option in 33% of the patients with FD and 39% of the GLA variants were detected as amenable. Therefore, the simple screening protocol using dried blood spots that was performed in this study could be useful for early diagnosis and selection of appropriate treatments for FD in high-risk and underdiagnosed patients with various renal, cardiac, or neurological manifestations.
Collapse
Affiliation(s)
- Shinichiro Yoshida
- Department of Pediatrics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto City, Kumamoto, 860-8556, Japan.,KM Biologics Co., Ltd., Kumamoto, Japan
| | - Jun Kido
- Department of Pediatrics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto City, Kumamoto, 860-8556, Japan.
| | - Takaaki Sawada
- Department of Pediatrics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto City, Kumamoto, 860-8556, Japan
| | - Ken Momosaki
- Department of Pediatrics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto City, Kumamoto, 860-8556, Japan.,Kumamoto-Ezuko Medical Center for Disabled Children, Kumamoto, Japan
| | - Keishin Sugawara
- Department of Pediatrics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto City, Kumamoto, 860-8556, Japan
| | - Shirou Matsumoto
- Department of Pediatrics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto City, Kumamoto, 860-8556, Japan
| | - Fumio Endo
- Department of Pediatrics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto City, Kumamoto, 860-8556, Japan.,Kumamoto-Ezuko Medical Center for Disabled Children, Kumamoto, Japan
| | - Kimitoshi Nakamura
- Department of Pediatrics, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto City, Kumamoto, 860-8556, Japan
| |
Collapse
|
29
|
Forstenpointner J, Sendel M, Moeller P, Reimer M, Canaan-Kühl S, Gaedeke J, Rehm S, Hüllemann P, Gierthmühlen J, Baron R. Bridging the Gap Between Vessels and Nerves in Fabry Disease. Front Neurosci 2020; 14:448. [PMID: 32612493 PMCID: PMC7308469 DOI: 10.3389/fnins.2020.00448] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 04/14/2020] [Indexed: 02/01/2023] Open
Abstract
Purpose Fabry disease frequently includes pain as an early disease feature, which was characterized as a dysfunctional processing of somatosensory information in various studies. The pathomechanism involves the mutation in the x-chromosomal GLA-gene and a consequent reduction of the α-galactosidase. This results in an insufficient reduction of globotriaosylceramide (GL3). Interestingly, an accumulation of GL3 was shown in both vascular endothelial cells and nerve tissue. This implicates that both an endothelial and nerve-dependent dysfunction may be considered as prominent mechanisms in pain pathogeneses. Patients and Methods The exploration of endothelial and C-fiber-dependent microcirculatory changes was conducted in a healthy cohort (n = 22) and in patients with polyneuropathy (n = 21) and Fabry disease (n = 15). Microcirculatory measurements were conducted using a laser speckle contrast analysis (LASCA) in combination with a thermoprobe controlling system, which applied a constant heat stimulus (42°C). Additionally, nerve fiber function was assessed via Quantitative Sensory Testing and heart rate variability (HRV). Results The results indicated a characteristic perfusion profile in the control group as well as both patient groups. Fabry patients had the smallest increase of endothelial-dependent perfusion as compared to the others [% increase as compared to Fabry: control + 129% (p = 0.002), PNP + 126% (p = 0.019)]. The sensory testing indicated a dysfunctional processing of A-delta fibers in Fabry disease as compared to healthy controls [cold detection threshold (CDT): p = 0.004, mechanical pain threshold (MPT): p = 0.007] and PNP patients (MPT: p = 0.001). Conclusion Our results point to both an endothelial and a nerve-dependent dysfunction in Fabry disease. Therefore, not only direct changes in nerve fiber tissue may contribute to an altered sensory processing. Indeed, evidence of a perfusion change in vasa nervorum could also contribute to the dysfunctional processing of sensory information, which likely occurs under physical stress.
Collapse
Affiliation(s)
- Julia Forstenpointner
- Division of Neurological Pain Research and Therapy, Department of Neurology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Manon Sendel
- Division of Neurological Pain Research and Therapy, Department of Neurology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Paul Moeller
- Division of Neurological Pain Research and Therapy, Department of Neurology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Maren Reimer
- Division of Neurological Pain Research and Therapy, Department of Neurology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Sima Canaan-Kühl
- Department of Medicine, Division of Nephrology, Charité, Berlin, Germany
| | - Jens Gaedeke
- Department of Medicine, Division of Nephrology, Charité, Berlin, Germany
| | - Stefanie Rehm
- Division of Neurological Pain Research and Therapy, Department of Neurology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Philipp Hüllemann
- Division of Neurological Pain Research and Therapy, Department of Neurology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Janne Gierthmühlen
- Division of Neurological Pain Research and Therapy, Department of Neurology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Ralf Baron
- Division of Neurological Pain Research and Therapy, Department of Neurology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| |
Collapse
|
30
|
The GALA project: practical recommendations for the use of migalastat in clinical practice on the basis of a structured survey among Italian experts. Orphanet J Rare Dis 2020; 15:86. [PMID: 32264911 PMCID: PMC7140546 DOI: 10.1186/s13023-020-1318-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 01/28/2020] [Indexed: 11/30/2022] Open
Abstract
Background Oral migalastat has recently been approved for the treatment of Anderson-Fabry disease (FD) in patients aged ≥16 years with amenable mutations on the basis of two phase III trials, FACETS and ATTRACT. However, with the introduction of migalastat into clinical practice, it is important to correctly identify the patients who may gain the most benefits from this therapy. Due to the relatively recent availability of migalastat, its role in clinical practice still has to be included in guidelines or recommendations. On these bases, a multidisciplinary group of Italian Experts in the treatment of FD has run the GALA project, with the aim to collect the opinions of expert physicians and to propose some starting points for an experience-based use of migalastat. Results Overall, although studies and data from longer-term follow-up with migalastat are still emerging, available evidence is consistent in showing that this molecule does represent a suitable therapy for the treatment of FD, in patients aged ≥16 years and with amenable mutations. The use of migalastat as an oral option appears to be overall safe, and experience thus far indicates potential for improving quality of life, controlling GI symptoms, stabilizing renal function and reducing cardiac hypertrophy. Conclusion Migalastat can be considered either as a first-line therapy – given its efficacy, extensive tissue penetration, convenient oral regimen, and the current limited therapeutic options available – or in patients on enzyme-replacement therapy (ERT) who experience side effects, with poor compliance to chronic i.v. therapy, or with clinical evidence of progression of the disease.
Collapse
|
31
|
Erdogmus S, Kutlay S, Kumru G, Ors Sendogan D, Erturk S, Keven K, Ceylaner G, Sengul S. Fabry Disease Screening in Patients With Kidney Transplant: A Single-Center Study in Turkey. EXP CLIN TRANSPLANT 2020; 18:444-449. [PMID: 32281532 DOI: 10.6002/ect.2019.0279] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVES Fabry disease is a rare X-linked multisystemic lysosomal storage disorder of the glycosphingolipid metabolic pathway. Nephropathy is one of the most important complications of Fabry disease, and patients with classical phenotype are at risk of developing endstage kidney disease. In this study, we investigated the use of screening for Fabry disease in kidney transplant recipients at our center. MATERIALS AND METHODS We screened 301 kidney transplant recipients with functioning grafts. Analyses for α-galactosidase A gene mutation were performed in all female and male kidney transplant recipients. We also measured leukocyte α-galactosidase A enzyme activity in patients with identified GLA mutation. RESULTS In 301 kidney transplant recipients, mean age was 42.9 ± 12.5 years, and the number of male patients was 180 (60%). Mean time after transplant was 79 ± 56 months, and estimated glomerular filtration rate was 66.8 ± 21 mL/min/1.73 m². One male patient who was diagnosed with Fabry disease before kidney transplant was also evaluated (mutation in the α-galactosidase A gene, c.1093_1101dup [p.Tyr365_lle367dup]). In 2 female patients, p.A143T (c.427G>A) mutation of unknown significance and p.D313Y (c.937G>T) heterozygous mutation were identified; however, leukocyte ?-galactosidase A enzyme activity was normal in these patients (63.7 and 67.3 nmol/h/mg protein). In the patient diagnosed with Fabry disease, family screening revealed 4 additional affected family members. DISCUSSIONS Although prevalence was shown to be low in our center (1/301 patients; 0.33%), screening studies in kidney transplant recipients may help to detect new patients before they develop life-threatening complications such as renal involvement.
Collapse
Affiliation(s)
- Siyar Erdogmus
- From the Ankara University School of Medicine, Department of Nephrology, Ankara, Turkey
| | | | | | | | | | | | | | | |
Collapse
|
32
|
Barman HA. In Response to Gürdoğan and Akkuş. Balkan Med J 2020; 37:115. [PMID: 31823593 PMCID: PMC7094187 DOI: 10.4274/balkanmedj.galenos.2019.2019.11.148-response] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Affiliation(s)
- Hasan Ali Barman
- Clinic of Cardiology, İstanbul Okmeydanı Training and Research Hospital, İstanbul, Turkey
| |
Collapse
|
33
|
Newborn screening for Fabry disease in the western region of Japan. Mol Genet Metab Rep 2020; 22:100562. [PMID: 31956509 PMCID: PMC6961758 DOI: 10.1016/j.ymgmr.2019.100562] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Revised: 12/27/2019] [Accepted: 12/29/2019] [Indexed: 01/02/2023] Open
Abstract
Newborn screening (NBS) for Fabry disease (FD) is the best way to detect FD early prior to presentation of symptoms and is currently implemented in Taiwan and several states such as Illinois, Missouri, and Tennessee in the United States of America. In this report, we provide data from the first large-scale NBS program for FD in Japan. From August 2006 to December 2018, 599,711 newborns were screened; 26 variants, including 15 pathogenic variants and 11 variants of uncertain significance (VOUS; including eight novel variants), were detected in 57 newborns. Twenty-six male and 11 female newborns with pathogenic variants were diagnosed as hemizygous and heterozygous patients, respectively. Thirteen male and seven female newborns with VOUS were diagnosed as potential hemizygous and potential heterozygous patients, respectively. At the most recent follow up, three of 26 hemizygous patients had manifested symptoms and were receiving enzyme replacement therapy. The other patients were being followed up by clinicians. The frequency of FD (pathogenic variants + VOUS) in this study was estimated to be 1:7683, whereas that of patients with pathogenic variants was 1:11,854. In the future, the NBS system for FD may contribute to the detection of newborns not presenting manifestations related to FD and adults who have or have not developed manifestations related to FD.
Collapse
|
34
|
Vijapurapu R, Geberhiwot T, Jovanovic A, Baig S, Nordin S, Kozor R, Leyva F, Kotecha D, Wheeldon N, Deegan P, Rusk RA, Moon JC, Hughes DA, Woolfson P, Steeds RP. Study of indications for cardiac device implantation and utilisation in Fabry cardiomyopathy. Heart 2019; 105:1825-1831. [PMID: 31446426 PMCID: PMC6900228 DOI: 10.1136/heartjnl-2019-315229] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 06/25/2019] [Accepted: 07/03/2019] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Fabry disease is a treatable X-linked condition leading to progressive cardiomyopathy, arrhythmia and premature death. Atrial and ventricular arrhythmias contribute significantly to adverse prognosis; however, guidance to determine which patients require cardiovascular implantable electronic devices (CIEDs) is sparse. We aimed to evaluate indications for implantation practice in the UK and quantify device utilisation. METHODS In this retrospective study, we included demographic, clinical and imaging data from patients in four of the largest UK Fabry centres. Ninety patients with Fabry disease were identified with CIEDs implanted between June 2001 and February 2018 (FD-CIED group). To investigate differences in clinical and imaging markers between those with and without devices, these patients were compared with 276 patients without a CIED (FD-control). RESULTS In the FD-CIED group, 92% of patients with permanent pacemakers but only 28% with implantable cardioverter-defibrillators had a class 1 indication for implantation. A further 44% of patients had defibrillators inserted for primary prevention outside of current guidance. The burden of arrhythmia requiring treatment in the FD-CIED group was high (asymptomatic atrial fibrillation:29%; non-sustained ventricular tachycardia requiring medical therapy alone: 26%; sustained ventricular tachycardia needing anti-tachycardia pacing/defibrillation: 28%). Those with devices were older, had greater LV mass, more scar tissue and larger atrial size. CONCLUSIONS Arrhythmias are common in Fabry patients. Those with cardiac devices had high rates of atrial fibrillation requiring anticoagulation and ventricular arrhythmia needing device treatment. These are as high as those in hypertrophic cardiomyopathy, supporting the need for Fabry-specific indications for device implantation.
Collapse
Affiliation(s)
- Ravi Vijapurapu
- Department of Cardiology, Queen Elizabeth Hospital Birmingham, Birmingham, UK
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
- Department of Endocrinology, Queen Elizabeth Hospital Birmingham, Birmingham, UK
| | - Tarekegn Geberhiwot
- Department of Endocrinology, Queen Elizabeth Hospital Birmingham, Birmingham, UK
- Institute of Metabolism and System Research, University of Birmingham, Birmingham, UK
| | - Ana Jovanovic
- Mark Holland Metabolic Unit, Salford Royal Hospitals NHS Trust, Salford, UK
| | - Shanat Baig
- Department of Cardiology, Queen Elizabeth Hospital Birmingham, Birmingham, UK
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
- Department of Endocrinology, Queen Elizabeth Hospital Birmingham, Birmingham, UK
| | - Sabrina Nordin
- Department of Cardiology, Barts Heart Centre, London, UK
| | - Rebecca Kozor
- Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
| | - Francisco Leyva
- Aston Medical Research Institute, Aston Medical School, Birmingham, UK
| | - Dipak Kotecha
- Department of Cardiology, Queen Elizabeth Hospital Birmingham, Birmingham, UK
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
| | - Nigel Wheeldon
- South Yorkshire Cardiothoracic Centre, Northern General Hospital, Sheffield, UK
| | - Patrick Deegan
- Department of Medicine, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Rosemary A Rusk
- Department of Cardiology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - James C Moon
- Department of Cardiology, Barts Heart Centre, London, UK
| | - Derralynn A Hughes
- Lysosomal Storage Disorder Unit, Royal Free London NHS Foundation Trust, London, UK
| | - Peter Woolfson
- Department of Cardiology, Salford Royal Hospitals NHS Trust, Salford, UK
| | - Richard P Steeds
- Department of Cardiology, Queen Elizabeth Hospital Birmingham, Birmingham, UK
- Institute of Cardiovascular Sciences, University of Birmingham, Birmingham, UK
| |
Collapse
|
35
|
Could nutritional therapy take us further in our approaches to Fabry disease? Nutrition 2019; 72:110664. [PMID: 31972420 DOI: 10.1016/j.nut.2019.110664] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 09/27/2019] [Accepted: 11/26/2019] [Indexed: 12/11/2022]
Abstract
Fabry disease (FD) is an X-linked lysosomal storage disorder caused by mutations in the GLA gene that result in deficiency of enzyme α-galactosidase A activity. Clinical manifestation varies from mild to severe depending on the phenotype. The main clinical manifestations are cutaneous (angiokeratomas), neurologic (acroparesthesias), gastrointestinal (nausea, diarrhea, and abdominal pain), renal (proteinuria and kidney failure), cardiovascular (cardiomyopathy and arrhythmias), and cerebrovascular (stroke). Enzyme replacement therapy with recombinant human α-galactosidase is currently the therapeutic option for FD. Although enzyme replacement therapy has changed the natural history of disease, many clinical aspects of FD require an additional specific treatment. Nutritional approach is mostly indicated in case of nephropathy and gastrointestinal symptoms. Specific dietary interventions can modulate some pathogenetic mechanisms of the disease, such as the inflammation, oxidative stress, and autophagic disorders. However, to our knowledge, limited attention has been given to the nutritional aspects of FD. The aim of this review is to examine nutritional strategies that might interfere with several pathophysiologic aspects of FD, including inflammation and oxidative stress. A dietary approach should be part of the basic treatment in renal manifestations of FD. Dietary measures recommended for irritable bowel syndrome could be recommended for gastrointestinal symptoms. Dietary factors can modulate the inflammation, oxidative stress, and autophagy involved in FD. Polyphenols, ω-3 fatty acids, microbiota, and specific dietary patterns can interfere with inflammation/oxidative stress and autophagy mechanisms and could also contribute to the slowing of FD progression.
Collapse
|
36
|
Yadav SP, Abraham A, Nadig R, Vasudevan A. Burning Feet, Dilated Heart and Failed Kidneys. Indian J Nephrol 2019; 29:357-359. [PMID: 31571744 PMCID: PMC6755931 DOI: 10.4103/ijn.ijn_35_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Fabry's disease, X-linked lysosomal storage disease, results from deficient activity of alpha galactosidaseA (α-GalA). Renal manifestation usually begins at third decade of life. We report a 16 year male with initial presentation with end stage renal disease (ESRD) and the diagnosis confirmed by presence of myeloid bodies on electron microscopy of kidney biopsy and low serum α-GalA level.
Collapse
Affiliation(s)
- S. P. Yadav
- Department of Pediatric Nephrology, St. John's Medical College Hospital, Bengaluru, Karnataka, India
| | - A. Abraham
- Renopath Centre for Renal and Urological Pathology Pvt., Ltd., Chennai, Tamil Nadu, India
| | - R. Nadig
- Department of Neurology, St. John's Medical College Hospital, Bengaluru, Karnataka, India
| | - A. Vasudevan
- Department of Pediatric Nephrology, St. John's Medical College Hospital, Bengaluru, Karnataka, India
| |
Collapse
|
37
|
Leonardi A, Carraro G, Modugno RL, Rossomando V, Scalora T, Lazzarini D, Calò L. Cornea verticillata in Fabry disease: a comparative study between slit-lamp examination and in vivo corneal confocal microscopy. Br J Ophthalmol 2019; 104:718-722. [DOI: 10.1136/bjophthalmol-2019-314249] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 07/08/2019] [Accepted: 08/01/2019] [Indexed: 12/23/2022]
Abstract
PurposeTo compare the diagnostic power of slit-lamp examination with the in vivo corneal confocal microscopy (IVCM) as the gold standard in assessing the presence of corneal epithelial deposits in patients with Fabry disease (FD).MethodsFourteen patients with FD (4 males, 10 females; mean age, 46.8 years) and eight healthy controls (4 males, 4 females; mean age, 36.75 years) were included. All subjects underwent slit-lamp examination and IVCM of both central and peripheral corneal quadrants with the Heidelberg Retina Tomograph-III in combination with the Rostock Cornea Module.ResultsIn patients with FD, 9 of 28 eyes (32%) showed the presence of cornea verticillata at the slit-lamp examination and 25 eyes (89%) showed the presence of epithelial hyper-reflective deposits at the IVCM. Of the 19 eyes negative at the slit-lamp examination, 16 eyes showed the presence of epithelial deposits at the IVCM. Compared with controls, patients with FD had a significantly reduced number, density and length of nerve fibres at the level of corneal sub-basal nerve plexus, but a significantly higher grade of fibres tortuosity.ConclusionsThe slit-lamp examination has a limited diagnostic power in the detection of epithelial deposits in patients with FD when compared with the IVCM. In fact, the slit-lamp examination suffers from a high number of false negative results and, consequently, from a low negative predictive value (16%). IVCM allows the detection of corneal microstructural changes in patients with FD and may represent a reliable tool for the early diagnosis and follow-up of the disease.
Collapse
|
38
|
Sasa H, Nagao M, Kino K. Safety and effectiveness of enzyme replacement therapy with agalsidase alfa in patients with Fabry disease: Post-marketing surveillance in Japan. Mol Genet Metab 2019; 126:448-459. [PMID: 30803893 DOI: 10.1016/j.ymgme.2019.02.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 02/19/2019] [Accepted: 02/19/2019] [Indexed: 02/05/2023]
Abstract
Fabry disease is a rare X-linked inherited multisystem disorder resulting from deficiency of the lysosomal enzyme alpha-galactosidase A. Currently, specific therapies, including enzyme replacement therapies, are available for Fabry disease, but clinical trials provide limited information on long-term safety and effectiveness. Agalsidase alfa was approved in Japan in 2006. The post-marketing surveillance study of all patients receiving agalsidase alfa to evaluate its long-term safety and effectiveness as a mandatory condition for its approval had been conducted for 8 years (from February 2007 to March 2015). A total of 493 patients were included in this analysis of safety and effectiveness. The overall mean follow-up period was 3.5 years (range, 0.0-7.9 years). The percentage of patients with adverse drug reactions was 24.5% (121/493) and 12.6% had infusion-related reactions (62/493). In the 256 patients without prior enzyme replacement therapy whose IgG antibody data were available, 17 were IgG antibody positive (6.6%). However, the chronological correlation between seroconversion and the incidence of infusion-related reactions was not clear. The mean brief pain inventory score of the worst pain decreased in patients with moderate and severe pain at baseline. Plasma Gb3 and urine sediment Gb3 in males with classical Fabry disease without prior enzyme replacement therapy significantly decreased. The mean yearly changes in eGFR (mL/min/1.73 m2) ranged from -2.88 to +1.00 in males with classical Fabry disease, from -2.04 to -0.95 in males with non-typical variant and from -2.64 to -1.02 in females. The lower eGFR or the more proteinuria at baseline, the faster the decrease in eGFR of the patients was observed. There was no substantial difference in cardiac parameters (left ventricular mass index, E/A wave ratio, ejection fraction, and QRS duration). In conclusion, agalsidase alfa, 0.2 mg/kg every other week, was well tolerated and controlled the progression of symptoms (especially renal and cardiac) of Fabry disease in adults. Enzyme replacement therapy should be started in Japanese patients before cardiac and/or renal symptoms of Fabry disease develop.
Collapse
Affiliation(s)
- Hiroaki Sasa
- Sumitomo Dainippon Pharma Co., Ltd., Osaka, Japan.
| | | | - Koichi Kino
- Sumitomo Dainippon Pharma Co., Ltd., Osaka, Japan
| |
Collapse
|
39
|
Hughes DA, Nicholls K, Sunder-Plassmann G, Jovanovic A, Feldt-Rasmussen U, Schiffmann R, Giugliani R, Jain V, Viereck C, Castelli JP, Skuban N, Barth JA, Bichet DG. Safety of switching to Migalastat from enzyme replacement therapy in Fabry disease: Experience from the Phase 3 ATTRACT study. Am J Med Genet A 2019; 179:1069-1073. [PMID: 30920142 PMCID: PMC6593787 DOI: 10.1002/ajmg.a.61105] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Revised: 01/29/2019] [Accepted: 02/01/2019] [Indexed: 11/30/2022]
Affiliation(s)
- Derralynn A Hughes
- Lysosomal Storage Disorders Unit, Royal Free NHS Foundation Trust and University College London, London, United Kingdom
| | - Kathleen Nicholls
- Department of Nephrology, Royal Melbourne Hospital, University of Melbourne, Parkville, Victoria, Australia
| | - Gere Sunder-Plassmann
- Division of Nephrology and Dialysis, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Ana Jovanovic
- The Mark Holland Metabolic Unit, Salford Royal Hospital and NHS Foundation Trust, Salford, United Kingdom
| | - Ulla Feldt-Rasmussen
- Department of Medical Endocrinology and Metabolism, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | | | - Robert Giugliani
- Medical Genetics Service, HCPA, and Department of Genetics, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
| | - Vipul Jain
- Amicus Therapeutics, Inc., Cranbury, New Jersey
| | | | | | - Nina Skuban
- Amicus Therapeutics, Inc., Cranbury, New Jersey
| | - Jay A Barth
- Amicus Therapeutics, Inc., Cranbury, New Jersey
| | - Daniel G Bichet
- Departments of Medicine and Physiology, Hôpital du Sacré-Coeur, University of Montreal, Montreal, Quebec, Canada
| |
Collapse
|
40
|
Spada M, Baron R, Elliott PM, Falissard B, Hilz MJ, Monserrat L, Tøndel C, Tylki-Szymańska A, Wanner C, Germain DP. The effect of enzyme replacement therapy on clinical outcomes in paediatric patients with Fabry disease - A systematic literature review by a European panel of experts. Mol Genet Metab 2019; 126:212-223. [PMID: 29785937 DOI: 10.1016/j.ymgme.2018.04.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 04/20/2018] [Indexed: 11/30/2022]
Abstract
BACKGROUND Fabry disease is caused by a deficiency of the lysosomal enzyme α-galactosidase, resulting in progressive accumulation of globotriaosylceramide (GL-3). The disease can manifest early during childhood and adolescence. Enzyme replacement therapy (ERT) with recombinant human α-galactosidase is the first specific treatment for Fabry disease and has been available in Europe since 2001. This paper presents the findings of a systematic literature review of clinical outcomes with ERT in paediatric patients with Fabry disease. METHODS A comprehensive systematic review of published literature on ERT in Fabry disease was conducted in January 2017. The literature analysis included all original articles reporting outcomes of ERT in paediatric patients. RESULTS Treatment-related outcomes in the paediatric population were reported in six publications derived from open-label clinical trials and in 10 publications derived from observational or registry-based studies. ERT was shown to significantly reduce plasma and urine GL-3 levels in paediatric patients with Fabry disease. The effect of ERT on GL-3 clearance from renal podocytes appeared to be agalsidase dose-dependent. ERT relieved pain and improved gastrointestinal symptoms and quality of life. CONCLUSIONS Based on the published literature, the use of ERT in paediatric patients can significantly clear GL-3 accumulation, ameliorate the early symptoms of Fabry disease, and improve quality of life. Treatment with ERT in paediatric patients with Fabry disease may be important to prevent further disease progression and overt organ damage.
Collapse
Affiliation(s)
- Marco Spada
- Department of Paediatrics, University of Torino, Torino, Italy.
| | - Ralf Baron
- Division of Neurological Pain Research and Therapy, Department of Neurology, Universitätsklinikum Schleswig-Holstein, Kiel, Germany
| | - Perry M Elliott
- Barts Heart Centre, University College London, London, United Kingdom
| | - Bruno Falissard
- INSERM U1018, University of Paris-Sud, University of Paris-Descartes, Paris, France
| | - Max J Hilz
- Department of Neurology, University of Erlangen-Nuremberg, Erlangen, Germany
| | | | - Camilla Tøndel
- Department of Paediatrics, Haukeland University Hospital, Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Anna Tylki-Szymańska
- Department of Paediatrics, Nutrition and Metabolic Diseases, Children's Memorial Health Institute, Warsaw, Poland
| | - Christoph Wanner
- Division of Nephrology, University Clinic, University of Würzburg, Würzburg, Germany
| | - Dominique P Germain
- French Referral Center for Fabry disease, Division of Medical Genetics and INSERM U1179, University of Versailles, Paris-Saclay University, Montigny, France
| |
Collapse
|
41
|
Germain DP, Nicholls K, Giugliani R, Bichet DG, Hughes DA, Barisoni LM, Colvin RB, Jennette JC, Skuban N, Castelli JP, Benjamin E, Barth JA, Viereck C. Efficacy of the pharmacologic chaperone migalastat in a subset of male patients with the classic phenotype of Fabry disease and migalastat-amenable variants: data from the phase 3 randomized, multicenter, double-blind clinical trial and extension study. Genet Med 2019; 21:1987-1997. [PMID: 30723321 PMCID: PMC6752321 DOI: 10.1038/s41436-019-0451-z] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 01/22/2019] [Indexed: 11/09/2022] Open
Abstract
PURPOSE Outcomes in patients with Fabry disease receiving migalastat during the phase 3 FACETS trial (NCT00925301) were evaluated by phenotype. METHODS Data were evaluated in two subgroups of patients with migalastat-amenable GLA variants: "classic phenotype" (n = 14; males with residual peripheral blood mononuclear cell α-galactosidase A <3% normal and multiorgan system involvement) and "other patients" (n = 36; males not meeting classic phenotype criteria and all females). Endpoints included estimated glomerular filtration rate (eGFR), left ventricular mass index (LVMi), Gastrointestinal Symptoms Rating Scale diarrhea subscale (GSRS-D), renal peritubular capillary (PTC) globotriaosylceramide (GL-3) inclusions, and plasma globotriaosylsphingosine (lyso-Gb3). RESULTS Baseline measures in the classic phenotype patients suggested a more severe phenotype. At month 24, mean (SD) annualized change in eGFRCKD-EPI with migalastat was -0.3 (3.76) mL/min/1.73 m2 in the classic phenotype subgroup; changes in LVMi, GSRS-D, and lyso-Gb3 were -16.7 (18.64) g/m2, -0.9 (1.66), and -36.8 (35.78) nmol/L, respectively. At month 6, mean PTC GL-3 inclusions decreased with migalastat (-0.8) and increased with placebo (0.3); switching from placebo to migalastat, PTC inclusions decreased by -0.7. Numerically smaller changes in these endpoints were observed in the other patients. CONCLUSION Migalastat provided clinical benefit to patients with Fabry disease and amenable variants, regardless of disease severity.
Collapse
Affiliation(s)
- Dominique P Germain
- Division of Medical Genetics and Inserm U1179, University of Versailles, Paris-Saclay University, Montigny, France.
| | - Kathy Nicholls
- Royal Melbourne Hospital, University of Melbourne, Parkville, VIC, Australia
| | - Roberto Giugliani
- Medical Genetics Service, HCPA, and Department of Genetics, UFRGS, Porto Alegre, Brazil
| | - Daniel G Bichet
- Department of Nephrology, Hôpital du Sacré-Coeur, University of Montreal, Montreal, QC, Canada
| | - Derralynn A Hughes
- Royal Free NHS Foundation Trust and University College London, London, UK
| | - Laura M Barisoni
- Department of Pathology, University of Miami, Miller School of Medicine, Miami, FL, USA
| | - Robert B Colvin
- Harvard Medical School, Massachusetts General Hospital, Boston, MA, USA
| | - J Charles Jennette
- School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | | | | | | | | | | |
Collapse
|
42
|
A comparative computational approach toward pharmacological chaperones (NN-DNJ and ambroxol) on N370S and L444P mutations causing Gaucher's disease. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2019; 114:315-339. [DOI: 10.1016/bs.apcsb.2018.10.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
43
|
Tao YX, Conn PM. Pharmacoperones as Novel Therapeutics for Diverse Protein Conformational Diseases. Physiol Rev 2018; 98:697-725. [PMID: 29442594 DOI: 10.1152/physrev.00029.2016] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
After synthesis, proteins are folded into their native conformations aided by molecular chaperones. Dysfunction in folding caused by genetic mutations in numerous genes causes protein conformational diseases. Membrane proteins are more prone to misfolding due to their more intricate folding than soluble proteins. Misfolded proteins are detected by the cellular quality control systems, especially in the endoplasmic reticulum, and proteins may be retained there for eventual degradation by the ubiquitin-proteasome system or through autophagy. Some misfolded proteins aggregate, leading to pathologies in numerous neurological diseases. In vitro, modulating mutant protein folding by altering molecular chaperone expression can ameliorate some misfolding. Some small molecules known as chemical chaperones also correct mutant protein misfolding in vitro and in vivo. However, due to their lack of specificity, their potential as therapeutics is limited. Another class of compounds, known as pharmacological chaperones (pharmacoperones), binds with high specificity to misfolded proteins, either as enzyme substrates or receptor ligands, leading to decreased folding energy barriers and correction of the misfolding. Because many of the misfolded proteins are misrouted but do not have defects in function per se, pharmacoperones have promising potential in advancing to the clinic as therapeutics, since correcting routing may ameliorate the underlying mechanism of disease. This review will comprehensively summarize this exciting area of research, surveying the literature from in vitro studies in cell lines to transgenic animal models and clinical trials in several protein misfolding diseases.
Collapse
Affiliation(s)
- Ya-Xiong Tao
- Department of Anatomy, Physiology and Pharmacology, College of Veterinary Medicine, Auburn University , Auburn, Alabama ; and Departments of Internal Medicine and Cell Biology, Texas Tech University Health Science Center , Lubbock, Texas
| | - P Michael Conn
- Department of Anatomy, Physiology and Pharmacology, College of Veterinary Medicine, Auburn University , Auburn, Alabama ; and Departments of Internal Medicine and Cell Biology, Texas Tech University Health Science Center , Lubbock, Texas
| |
Collapse
|
44
|
Histopathological findings in renal biopsies in Anderson–Fabry disease. Case series. REVISTA MÉDICA DEL HOSPITAL GENERAL DE MÉXICO 2018. [DOI: 10.1016/j.hgmx.2016.08.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
|
45
|
Üçeyler N, Böttger J, Henkel L, Langjahr M, Mayer C, Nordbeck P, Wanner C, Sommer C. Detection of blood Gb3 deposits as a new tool for diagnosis and therapy monitoring in patients with classic Fabry disease. J Intern Med 2018; 284:427-438. [PMID: 29974530 DOI: 10.1111/joim.12801] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND The X-linked Fabry disease (FD) is a multiorgan disorder due to alpha-galactosidase A (α-GAL) deficiency with consequent lysosomal accumulation of globotriaosylceramide (Gb3). We established the immunocytochemical detection of Gb3 in blood cells of FD patients as a new method for FD diagnostics, follow-up and treatment control. METHODS We enrolled 67 FD patients (37 men, 30 women) and 52 healthy controls (26 men, 26 women). PBMC were isolated from whole venous blood and 3x105 cells were immunoreacted with antibodies against CD77 as a marker for Gb3. Using fluorescence microscopy, the mean percentage of Gb3 positive PBMC was determined by an investigator blinded to subject allocation. As a second method, we qualitatively assessed Gb3 positive cells in blood smears. RESULTS Gb3 deposits were unequivocally visible in PBMC and in blood smears. Men (P < 0.001) and women (P < 0.01) with classical FD had more Gb3-positive PBMC than healthy controls, whose samples only occasionally showed positive cells. The number of Gb3 positive PBMC was negatively correlated with α-GAL activity and positively correlated with plasma lyso-Gb3 levels. Only the PBMC Gb3 load but not plasma lyso-Gb3 reflected short- and long-term effects of enzyme replacement therapy (P < 0.01). CONCLUSIONS Gb3 can be visualized in PBMC and blood smears and can be used as a novel marker for diagnostics, follow-up and treatment control in FD.
Collapse
Affiliation(s)
- N Üçeyler
- Department of Neurology, University of Würzburg, Würzburg, Germany.,Fabry Center for Interdisciplinary Therapy Würzburg (FAZIT), University of Würzburg, Würzburg, Germany
| | - J Böttger
- Department of Neurology, University of Würzburg, Würzburg, Germany
| | - L Henkel
- Department of Neurology, University of Würzburg, Würzburg, Germany
| | - M Langjahr
- Department of Neurology, University of Würzburg, Würzburg, Germany
| | - C Mayer
- Department of Neurology, University of Würzburg, Würzburg, Germany
| | - P Nordbeck
- Fabry Center for Interdisciplinary Therapy Würzburg (FAZIT), University of Würzburg, Würzburg, Germany.,Department of Internal Medicine I, University of Würzburg, Würzburg, Germany
| | - C Wanner
- Fabry Center for Interdisciplinary Therapy Würzburg (FAZIT), University of Würzburg, Würzburg, Germany.,Department of Internal Medicine I, University of Würzburg, Würzburg, Germany
| | - C Sommer
- Department of Neurology, University of Würzburg, Würzburg, Germany.,Fabry Center for Interdisciplinary Therapy Würzburg (FAZIT), University of Würzburg, Würzburg, Germany
| |
Collapse
|
46
|
Abstract
Anderson-Fabry disease is an X-linked lysosomal storage disorder caused by mutations in the GLA gene that result in deficiency of the enzyme alpha-galactosidase A. The worldwide incidence of Fabry's disease is reported to be in the range of 1 in 40,000-117,000, although this value may be a significant underestimate given under recognition of symptoms and delayed or missed diagnosis. Deficiency in alpha-galactosidase A causes an accumulation of neutral glycosphingolipids such as globotriaosylceramide (Gb3) in lysosomes within various tissues including the vascular endothelium, kidneys, heart, eyes, skin and nervous system. Gb3 accumulation induces pathology via the release of pro-inflammatory cytokines, growth-promoting factors and by oxidative stress, resulting in myocardial extracellular matrix remodelling, left ventricular hypertrophy (LVH), vascular dysfunction and interstitial fibrosis. Cardiac involvement manifesting as ventricular hypertrophy, systolic and diastolic dysfunction, valvular abnormalities and conduction tissue disease is common in AFD and is associated with considerable cardiovascular morbidity and mortality from heart failure, sudden cardiac death and stroke-related death.
Collapse
|
47
|
Hou ZS, Ulloa-Aguirre A, Tao YX. Pharmacoperone drugs: targeting misfolded proteins causing lysosomal storage-, ion channels-, and G protein-coupled receptors-associated conformational disorders. Expert Rev Clin Pharmacol 2018; 11:611-624. [DOI: 10.1080/17512433.2018.1480367] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Zhi-Shuai Hou
- Department of Anatomy, Physiology and Pharmacology, College of Veterinary Medicine, Auburn University, Auburn, Alabama, USA
| | - Alfredo Ulloa-Aguirre
- Red de Apoyo a la Investigación (RAI), Universidad Nacional Autónoma de México (UNAM) and Instituto Nacional de Ciencias Médicas y Nutrición SZ, Mexico City, Mexico
| | - Ya-Xiong Tao
- Department of Anatomy, Physiology and Pharmacology, College of Veterinary Medicine, Auburn University, Auburn, Alabama, USA
| |
Collapse
|
48
|
Hazari H, Belenkie I, Kryski A, White JA, Oudit GY, Thompson R, Fung T, Dehar N, Khan A. Comparison of Cardiac Magnetic Resonance Imaging and Echocardiography in Assessment of Left Ventricular Hypertrophy in Fabry Disease. Can J Cardiol 2018; 34:1041-1047. [PMID: 29935990 DOI: 10.1016/j.cjca.2018.03.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 03/22/2018] [Accepted: 03/22/2018] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Cardiac hypertrophy in Fabry disease can be assessed using the left ventricular mass index (LVMI) with either echocardiography (LVMI-ECHO) or magnetic resonance imaging (LVMI-CMR). METHODS A retrospective case series of patients with Fabry disease in Alberta involved a cross-sectional analysis of 32 patients and a longitudinal analysis of 14 of these patients with at least 4 serial CMR measurements. RESULTS The cross-sectional analysis showed the mean LVMI-ECHO was 97.8 ± 26.0 g/m2, which was higher compared with LVMI-CMR at 81.1 ± 26.9 g/m2 with a mean bias of 16.7 g/m2 (P < 0.001). In the longitudinal analysis, LVMI-ECHO was higher, with an estimated marginal mean of 96.21 ± 6.13 (mean ± standard error of the mean [SEM]) compared with 71.18 ± 5.99 for LVMI-CMR (P < 0.01; generalized estimating equations). There was an association between an increase in LVMI-CMR over time with the presence of cardiac fibrosis, and patients treated with enzyme replacement therapy (ERT) had slower increases than those without therapy. LVMI-ECHO failed to detect these associations owing to the higher variability and tendency to overestimate the LVMI. CONCLUSIONS We propose the preferred method for measuring LVMI is CMR in patients with Fabry disease.
Collapse
Affiliation(s)
- Hassan Hazari
- Faculty of Graduate Studies, Department of Medical Genetics and Pediatrics, University of Calgary Cumming School of Medicine, Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada
| | - Israel Belenkie
- Departments of Cardiac Sciences and Medicine, Cumming School of Medicine, Calgary, Alberta, Canada
| | - Albert Kryski
- Department of Cardiac Sciences and Medicine, Libin Cardiovascular Institute, Cumming School of Medicine, Calgary, Alberta, Canada
| | - James A White
- Stephenson Cardiac Imaging Centre, Libin Cardiovascular Institute, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - Gavin Y Oudit
- Division of Cardiology, Department of Medicine, Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Richard Thompson
- Department of Biomedical Engineering, University of Alberta, Edmonton, Alberta, Canada
| | - Tak Fung
- Information Technologies, University of Calgary, Calgary, Alberta, Canada
| | - Navdeep Dehar
- Biotechnology Program, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Aneal Khan
- Department of Medical Genetics and Pediatrics, University of Calgary Cumming School of Medicine, Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada.
| |
Collapse
|
49
|
Liao HC, Hsu TR, Young L, Chiang CC, Huang CK, Liu HC, Niu DM, Chen YJ. Functional and biological studies of α-galactosidase A variants with uncertain significance from newborn screening in Taiwan. Mol Genet Metab 2018; 123:140-147. [PMID: 28615118 DOI: 10.1016/j.ymgme.2017.06.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 06/07/2017] [Accepted: 06/07/2017] [Indexed: 10/19/2022]
Abstract
Fabry disease is an X-linked disorder resulted from deficiency of α-galactosidase A (GLA) activity. In Taiwan, a total of 792,247 newborns were screened from 2008 to 2014 in two newborn screening centers, and 13 variants of uncertain significance (VOUS) in the GLA gene were identified. To determine whether these variants were pathogenic or not, functional, biochemical, clinical and pedigree analyses were performed. In vitro functional assay was established through site-directed mutagenesis, and four in silico tools were used to predict pathogenesis. The enzyme activity of dried blood spots and plasma metabolite lyso-Gb3 level from subjects with the variants were measured. Additionally, clinical manifestations were evaluated extensively from the subjects and their relatives. Our results revealed that p.G104V, p.I232T, p.D322H, and p.G360C all exhibited relatively low residual enzyme activities and elevated plasma lyso-Gb3 level. These data strongly suggest that these Fabry mutations may cause classical or later-onset phenotypes. In contrast, neither significantly clinical symptoms nor elevated lyso-Gb3 level was found in cases with p.P60S, p.A108T, p.S304T, p.R356Q, and p.P362T variants, which may be non-pathogenic or milder forms of Fabry variants. More data need to be included for the patients with p.N53D, p.P210S, p.M296L, and p.K391T variants. The established system provides us more information to classify these GLA variants.
Collapse
Affiliation(s)
- Hsuan-Chieh Liao
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan; Chinese Foundation of Health, Newborn Screening Center, Taipei, Taiwan
| | - Ting-Rong Hsu
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Pediatrics, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Leslie Young
- Department of Life Sciences and Institute of Genome Sciences, National Yang-Ming University, Taipei, Taiwan
| | - Chuan-Chi Chiang
- Chinese Foundation of Health, Newborn Screening Center, Taipei, Taiwan
| | - Chun-Kai Huang
- Department of Pediatrics, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Hao-Chuan Liu
- Department of Pediatrics, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Dau-Ming Niu
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Pediatrics, Taipei Veterans General Hospital, Taipei, Taiwan.
| | - Yann-Jang Chen
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Life Sciences and Institute of Genome Sciences, National Yang-Ming University, Taipei, Taiwan; Department of Pediatrics, Taipei City Hospital, Renai Branch, Taipei, Taiwan.
| |
Collapse
|
50
|
Clinical-Pathological Conference Series from the Medical University of Graz : Case No 153: A 55-year-old woman with atypical multiple sclerosis and irritable bowel syndrome. Wien Klin Wochenschr 2017; 130:151-160. [PMID: 29164318 PMCID: PMC5816105 DOI: 10.1007/s00508-017-1291-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 10/13/2017] [Indexed: 11/23/2022]
|