1
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Lamond MK, Chetwynd AJ, Salama AD, Oni L. A Systematic Literature Review on the Use of Dried Biofluid Microsampling in Patients With Kidney Disease. J Clin Lab Anal 2024; 38:e25032. [PMID: 38525922 PMCID: PMC11033336 DOI: 10.1002/jcla.25032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 01/19/2024] [Accepted: 03/09/2024] [Indexed: 03/26/2024] Open
Abstract
BACKGROUND Kidney disease is fairly unique due to the lack of symptoms associated with disease activity, and it is therefore dependent on biological monitoring. Dried biofluids, particularly dried capillary blood spots, are an accessible, easy-to-use technology that have seen increased utility in basic science research over the past decade. However, their use is yet to reach the kidney patient population clinically or in large-scale discovery science initiatives. The aim of this study was to systematically evaluate the existing literature surrounding the use of dried biofluids in kidney research. METHODS A systematic literature review was conducted using three search engines and a predefined search term strategy. Results were summarised according to the collection method, type of biofluid, application to kidney disease, cost, sample stability and patient acceptability. RESULTS In total, 404 studies were identified and 67 were eligible. In total, 34,739 patients were recruited to these studies with a skew towards male participants (> 73%). The majority of samples were blood, which was used either for monitoring anti-rejection immunosuppressive drug concentrations or for kidney function. Dried biofluids offered significant cost savings to the patient and healthcare service. The majority of patients preferred home microsampling when compared to conventional monitoring. CONCLUSION There is an unmet need in bringing dried microsampling technology to advance kidney disease despite its advantages. This technology provides an opportunity to upscale patient recruitment and longitudinal sampling, enhance vein preservation and overcome participation bias in research.
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Affiliation(s)
- Megan K. Lamond
- Department of Women's and Children's Health, Institute of Life Course and Medical SciencesUniversity of LiverpoolLiverpoolUK
| | - Andrew J. Chetwynd
- Department of Women's and Children's Health, Institute of Life Course and Medical SciencesUniversity of LiverpoolLiverpoolUK
- Department of Biochemistry and Systems Biology, Centre for Proteome Research, Institute of Systems, Molecular and Integrative BiologyUniversity of LiverpoolLiverpoolUK
| | - Alan D. Salama
- Department of Renal MedicineUniversity College LondonLondonUK
| | - Louise Oni
- Department of Women's and Children's Health, Institute of Life Course and Medical SciencesUniversity of LiverpoolLiverpoolUK
- Department of Paediatric NephrologyAlder Hey Children's NHS Foundation Trust HospitalLiverpoolUK
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2
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Linares D, Luna B, Loayza E, Taboada G, Ramaswami U. Prevalence of Fabry disease in patients with chronic kidney disease: A systematic review and meta-analysis. Mol Genet Metab 2023; 140:107714. [PMID: 37918171 DOI: 10.1016/j.ymgme.2023.107714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 10/10/2023] [Accepted: 10/22/2023] [Indexed: 11/04/2023]
Abstract
Fabry disease (FD) is an X-linked lysosomal storage disease caused by pathogenic variants in the GLA gene. It has a wide range of clinical manifestations, typically related to the specific underlying GLA variant. One of the main features of FD is kidney involvement; therefore, several studies have addressed the prevalence of FD in all types of patients with chronic kidney disease. We performed a systematic review and meta-analysis of screening studies in chronic kidney disease patients, including those on dialysis, had undergone a kidney transplantation, and those who did not receive kidney replacement therapy, and assessed the prevalence of pathogenic variants in these cohorts. Fifty-five studies were included, involving a total of 84,062 individuals. Of these, 251 cases were positive for FD; a third of the reported GLA variants were of a benign phenotype (37.8%), followed by classical phenotype (31.7%), late onset (15.5%), and of uncertain significance (14.7%). The overall prevalence among dialysis patients was 0.10% (CI95%, 0.06-0.15), 0.28% (CI95%, 0.06-0.15) among patients with kidney transplantation, and 0.17% (CI95%, 0.11-0.39) among those without kidney replacement therapy. Although the overall prevalence of FD is low in patients with kidney involvement, screening, especially in patients who have not yet undergone kidney replacement therapy, is important, in order to provide timely and effective treatment interventions, including disease modifying therapies. The prevalence of kidney involvement in females with Fabry Disease is lower but this should not lead to inadequate follow up. Further research is also needed on the impact of genetic variants of uncertain significance to elucidate their role in Fabry disease.
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Affiliation(s)
- Daniel Linares
- Genetics Institute, Universidad Mayor de San Andres, La Paz, Bolivia
| | - Beatriz Luna
- Genetics Institute, Universidad Mayor de San Andres, La Paz, Bolivia.
| | - Edson Loayza
- Genetics Institute, Universidad Mayor de San Andres, La Paz, Bolivia
| | - Gonzalo Taboada
- Genetics Institute, Universidad Mayor de San Andres, La Paz, Bolivia
| | - Uma Ramaswami
- Lysosomal Storage Disorders Unit, Royal Free London Hospitals, London, UK
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3
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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.
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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
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4
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Mallett A, Kearey PJ, Cameron A, Healy HG, Denaro C, Thomas M, Lee VW, Stark SL, Fuller M, Wang Z, Hoy WE. The prevalence of Fabry disease in a statewide chronic kidney disease cohort - Outcomes of the aCQuiRE (Ckd.Qld fabRy Epidemiology) study. BMC Nephrol 2022; 23:169. [PMID: 35505287 PMCID: PMC9066726 DOI: 10.1186/s12882-022-02805-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 04/27/2022] [Indexed: 11/26/2022] Open
Abstract
Background Prevalence of Fabry disease amongst Chronic Kidney Disease (CKD) patients on haemodialysis has been shown to be approximately 0.2%. Methods We undertook a cross-sectional study employing a cascade screening strategy for Fabry Disease amongst 3000 adult, male and female patients affected by CKD stage 1-5D/T at public, specialty renal practices within participating Queensland Hospital and Health Services from October 2017 to August 2019. A multi-tiered FD screening strategy, utilising a combination of dried blood spot (DBS) enzymatic testing, and if low, then lyso-GB3 testing and DNA sequencing, was used. Results Mean (SD) age was 64.0 (15.8) years (n = 2992), and 57.9% were male. Eight participants withrew out of the 3000 who consented. Of 2992 screened, 6 (0.20%) received a diagnosis of FD, 2902 (96.99%) did not have FD, and 84 (2.81%) received inconclusive results. Of the patients diagnosed with FD, mean age was 48.5 years; 5 were male (0.29%) and 1 was female (0.08%); 4 were on kidney replacement therapy (2 dialysis and 2 transplant); 3 were new diagnoses. Conclusions Estimated overall FD prevalence was 0.20%. Screening of the broader CKD population may be beneficial in identifying cases of FD. Trial registration The aCQuiRE Study has been prospectively registered with the Queensland Health Database of Research Activity (DORA, https://dora.health.qld.gov.au) as pj09946 (Registered 3rd July 2017). Supplementary Information The online version contains supplementary material available at 10.1186/s12882-022-02805-8.
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Affiliation(s)
- Andrew Mallett
- Department of Renal Medicine, Townsville University Hospital, Townsville, Australia. .,College of Medicine and Dentistry, James Cook University, Townsville, Australia. .,Institute for Molecular Bioscience, The University of Queensland, Brisbane, Australia. .,Faculty of Medicine, The University of Queensland, Brisbane, Australia. .,CKD.QLD and NHMRC CKD.CRE, The University of Queensland, Brisbane, Australia.
| | - Phoebe Jane Kearey
- Faculty of Medicine, The University of Queensland, Brisbane, Australia.,CKD.QLD and NHMRC CKD.CRE, The University of Queensland, Brisbane, Australia
| | - Anne Cameron
- Faculty of Medicine, The University of Queensland, Brisbane, Australia.,CKD.QLD and NHMRC CKD.CRE, The University of Queensland, Brisbane, Australia.,Kidney Health Service, Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Helen G Healy
- Faculty of Medicine, The University of Queensland, Brisbane, Australia.,CKD.QLD and NHMRC CKD.CRE, The University of Queensland, Brisbane, Australia.,Kidney Health Service, Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Charles Denaro
- Faculty of Medicine, The University of Queensland, Brisbane, Australia.,Department of Internal Medicine and Aged Care, Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Mark Thomas
- Department of Nephrology, Royal Perth Hospital, Perth, Australia
| | - Vincent W Lee
- Department of Renal Medicine, Westmead Hospital, Sydney, Australia.,Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Sydney, Australia
| | | | - Maria Fuller
- Genetics and Molecular Pathology Laboratory (SA Pathology), Adelaide, Australia.,Adelaide Medical School, University of Adelaide, Adelaide, Australia
| | - Zaimin Wang
- Faculty of Medicine, The University of Queensland, Brisbane, Australia.,CKD.QLD and NHMRC CKD.CRE, The University of Queensland, Brisbane, Australia
| | - Wendy E Hoy
- Faculty of Medicine, The University of Queensland, Brisbane, Australia.,CKD.QLD and NHMRC CKD.CRE, The University of Queensland, Brisbane, Australia
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5
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Sawada T, Kido J, Sugawara K, Nakamura K. High-Risk Screening for Fabry Disease: A Nationwide Study in Japan and Literature Review. Diagnostics (Basel) 2021; 11:diagnostics11101779. [PMID: 34679477 PMCID: PMC8534369 DOI: 10.3390/diagnostics11101779] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/23/2021] [Accepted: 09/24/2021] [Indexed: 12/26/2022] Open
Abstract
Fabry disease (FD) is an X-linked inherited disorder caused by mutations in the GLA gene, which encodes the lysosomal enzyme α-galactosidase A (α-Gal A). FD detection in patients at an early stage is essential to achieve sufficient treatment effects, and high-risk screening may be effective. Here, we performed high-risk screening for FD in Japan and showed that peripheral neurological manifestations are important in young patients with FD. Moreover, we reviewed the literature on high-risk screening in patients with renal, cardiac, and central neurological manifestations. Based on the results of this study and review of research abroad, we believe that FD can be detected more effectively by targeting individuals based on age. In recent years, the methods for high-risk screening have been ameliorated, and high-risk screening studies using GLA next-generation sequencing have been conducted. Considering the cost-effectiveness of screening, GLA sequencing should be performed in individuals with reduced α-Gal A activity and females with certain FD manifestations and/or a family history of FD. The findings suggest that family analysis would likely detect FD patients, although GLA sequencing of asymptomatic family members requires adequate genetic counseling.
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Affiliation(s)
- Takaaki Sawada
- Department of Pediatrics, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto City 860-8556, Japan; (T.S.); (K.S.); (K.N.)
- Department of Pediatrics, Graduate School of Medical Sciences, Kumamoto University, Kumamoto City 860-8556, Japan
| | - Jun Kido
- Department of Pediatrics, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto City 860-8556, Japan; (T.S.); (K.S.); (K.N.)
- Correspondence: ; Tel.: +81-096-373-5191; Fax: +81-096-373-5335
| | - Keishin Sugawara
- Department of Pediatrics, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto City 860-8556, Japan; (T.S.); (K.S.); (K.N.)
| | - Kimitoshi Nakamura
- Department of Pediatrics, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto City 860-8556, Japan; (T.S.); (K.S.); (K.N.)
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6
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Nowak A, Beuschlein F, Sivasubramaniam V, Kasper D, Warnock DG. Lyso-Gb3 associates with adverse long-term outcome in patients with Fabry disease. J Med Genet 2021; 59:287-293. [PMID: 33495303 PMCID: PMC8867289 DOI: 10.1136/jmedgenet-2020-107338] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 11/06/2020] [Accepted: 12/03/2020] [Indexed: 12/26/2022]
Abstract
Background Fabry disease (FD) is a rare X-linked lysosomal storage disease caused by mutations in the α-galactosidase A gene (GLA) leading to deficiency of α-galactosidase A and ultimately in progressive glycosphingolipid accumulation, especially globotriaosylceramide (Gb3) and its deacylated derivative globotriaosylsphingosine (Lyso-Gb3). The aim of the study was to assess plasma Lyso-Gb3 levels as a possible factor associated with adverse outcomes in FD. Methods In a cohort of 66 patients with genetically confirmed FD (26 males and 40 females), we analysed serum Lyso-Gb3 as a factor associated with adverse clinical outcomes in a long-term study. The main outcome was a composite endpoint of incident kidney replacement therapy, atrial fibrillation, pacemaker and/or implantable cardioverter defibrillator, cerebrovascular events or death, whichever occurred first. Results During the median follow-up time of 68 (40–80) months, events occurred in 19 (29%) of the patients. In a Cox multivariate regression analysis, Lyso-Gb3 levels (HR 4.62 (1.55 to 13.81); p=0.006) and the pretreatment exposure to Lyso-Gb3 (HR 3.41 (1.11 to 10.49); p=0.03) (both per SD increase) were significantly associated with adverse outcomes. If pretreatment Lyso-Gb3 exposure was added to multivariable logistic regression models containing age, sex, phenotype and enzyme replacement therapy as other covariates with the composite outcome as dependent variable, the area under the curve for the composite outcome significantly improved from 0.72 to 0.86 (p comparison=0.04). Conclusion Lyso-Gb3 is a significant risk factor associated with important clinical events. Whether treatment-related amelioration of Lyso-Gb3 levels will be associated with improved long-term outcome needs to be established in prospective intervention trials.
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Affiliation(s)
- Albina Nowak
- Department of Endocrinology and Clinical Nutrition, University Hospital Zurich, Zurich, Switzerland
- Division of Internal Medicine, Psychiatric University Hospital Zurich, Zurich, Switzerland
| | - Felix Beuschlein
- Department of Endocrinology and Clinical Nutrition, University Hospital Zurich, Zurich, Switzerland
| | - Visnuka Sivasubramaniam
- Department of Endocrinology and Clinical Nutrition, University Hospital Zurich, Zurich, Switzerland
| | | | - David G Warnock
- Department of Medicine, Division of Nephrology, University of Alabama at Birmingham, Birmingham, Alabama, USA
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7
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Battaglia Y, Fiorini F, Azzini C, Esposito P, De vito A, Granata A, Storari A, Mignani R. Deficiency in the Screening Process of Fabry Disease: Analysis of Chronic Kidney Patients Not on Dialysis. Front Med (Lausanne) 2021; 8:640876. [PMID: 33634157 PMCID: PMC7900152 DOI: 10.3389/fmed.2021.640876] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Accepted: 01/05/2021] [Indexed: 02/05/2023] Open
Abstract
Fabry Disease (FD), a rare and progressive, X-linked lysosomal storage disorder, is caused by mutations in the α-galactosidase A (GLA) gene which leads to enzymatic deficiency of GLA. Misdiagnosed and undiagnosed FD cases are common for the variable FD phenotype, ranging from asymptomatic and/or impairment of single organs, which is typically seen in females and in patients with late-onset mutation, to multiple organ disease, which is frequently found in males with classic GLA mutation. Consequently, for an early diagnosis and an efficient treatment of FD, three different strategies of screening, new-born screening, high-risk screening and familiar screening, have been conducted. However, most of FD screening in the CKD population has been carried out in hemodialysis patients and kidney transplant recipients, for whom the renal damage is already irreversible, so the effectiveness of enzymatic replacement therapy is limited and delayed therapeutic intervention results in worse long-term outcomes. This review investigates the actual strategies of screening initiatives for the identification of FD, examining in detail those performed in CKD patients not on dialysis.
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Affiliation(s)
- Yuri Battaglia
- Division of Nephrology and Dialysis, St. Anna University Hospital, Ferrara, Italy
- *Correspondence: Yuri Battaglia
| | - Fulvio Fiorini
- Division of Nephrology and Dialysis, “Santa Maria della Misericordia” Hospital, Rovigo, Italy
| | - Cristiano Azzini
- Department of Neuroscience and Rehabilitation, Ferrara University Hospital, Ferrara, Italy
| | - Pasquale Esposito
- Division of Nephrology, Dialysis and Transplantation, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ospedale Policlinico San Martino, Genoa, Italy
- Department of Internal Medicine, University of Genoa, Genoa, Italy
| | - Alessandro De vito
- Department of Neuroscience and Rehabilitation, Ferrara University Hospital, Ferrara, Italy
| | - Antonio Granata
- Division of Nephrology and Dialysis, “Cannizzaro” Hospital, Catania, Italy
| | - Alda Storari
- Division of Nephrology and Dialysis, St. Anna University Hospital, Ferrara, Italy
| | - Renzo Mignani
- Division of Nephrology and Dialysis Department, Infermi Hospital, Rimini, Italy
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8
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Pinto E Vairo F, Pichurin PN, Fervenza FC, Nasr SH, Mills K, Schmitz CT, Klee EW, Herrmann SM. Nail-patella-like renal disease masquerading as Fabry disease on kidney biopsy: a case report. BMC Nephrol 2020; 21:341. [PMID: 32791958 PMCID: PMC7424659 DOI: 10.1186/s12882-020-02012-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 08/06/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Genetic changes in the LIM homeobox transcription factor 1 beta (LMX1B) have been associated with focal segmental glomerulosclerosis (FSGS) without the extra-renal or ultrastructural manifestations of Nail-patella syndrome (NPS) known as Nail-patella-like renal disease (NPLRD). Fabry disease (FD) is an X-linked lysosomal disease caused by the deficiency of alpha-galactosidase A. The classic form of the disease is characterized by acroparesthesia, angiokeratomas, cornea verticillata, hypertrophic cardiomyopathy, strokes, and chronic kidney disease. Podocyte myelin bodies on ultrastructural examination of kidney tissue are very characteristic of FD; however some medications and other conditions may mimic this finding. CASE PRESENTATION Here, we report on a female patient with chronic kidney disease (CKD), positive family history for kidney disease and kidney biopsy showing a FSGS lesion and presence of focal myelin figures within podocytes concerning for FD. However, genetic testing for FD was negative. After comprehensive clinical, biochemical, and genetic evaluation, including whole exome and RNA sequencing, she was ultimately diagnosed with NPLRD. CONCLUSIONS This case illustrates the difficulties of diagnosing atypical forms of rare Mendelian kidney diseases and the role of a multidisciplinary team in an individualized medicine clinic setting in combination with state-of-the-art sequencing technologies to reach a definitive diagnosis.
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Affiliation(s)
- Filippo Pinto E Vairo
- Center for Individualized Medicine, Mayo Clinic, Rochester, MN, USA.,Department of Clinical Genomics, Mayo Clinic, Rochester, MN, USA
| | - Pavel N Pichurin
- Center for Individualized Medicine, Mayo Clinic, Rochester, MN, USA.,Department of Clinical Genomics, Mayo Clinic, Rochester, MN, USA
| | - Fernando C Fervenza
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA
| | - Samih H Nasr
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Kevin Mills
- UCL Institute of Child Health, Great Ormond Street Hospital, London, UK
| | | | - Eric W Klee
- Center for Individualized Medicine, Mayo Clinic, Rochester, MN, USA.,Department of Clinical Genomics, Mayo Clinic, Rochester, MN, USA.,Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.,Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
| | - Sandra M Herrmann
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA.
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9
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Vardarli I, Rischpler C, Herrmann K, Weidemann F. Diagnosis and Screening of Patients with Fabry Disease. Ther Clin Risk Manag 2020; 16:551-558. [PMID: 32606714 PMCID: PMC7319521 DOI: 10.2147/tcrm.s247814] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 05/09/2020] [Indexed: 12/30/2022] Open
Abstract
Fabry disease (FD) is an X-linked lysosomal storage disorder caused by absence or deficient activity of α-galactosidase A (α-Gal A) due to mutations in the α-galactosidase A gene (GLA), leading to progressive accumulation of globotriaosylceramide (Gb3) in tissues and organs including heart, kidney, the eyes, vascular endothelium, the nervous system and the skin. Cardiac involvement is leading to fatal complications and reduced life expectancy. FD is treatable with disease-specific treatment (enzyme replacement therapy (ERT) or with chaperone therapy). Therefore, the early diagnosis of FD is crucial for reducing the morbidity and mortality. Screening of high-risk populations (eg, patients with unexplained left ventricular hypertrophy (LVH), young patients with unexplained stroke, and patients with unexplained renal failure proteinuria or microalbuminuria) yields good results. The diagnostic algorithm is gender-specific. Initially, the measurement of α-Gal A activity is recommended in males, and optionally in females. In males with non-diagnostic residual activity (5–10%) activity, genetic testing is afterwards done for confirming the diagnosis. In fact, diagnosis of FD is not possible without genetic testing for both males and females. Globotriaosysphingosine (lyso-Gb3) for identification of atypical FD variants and high- sensitive troponin T (hsTNT) for identification of cardiac involvement are also important diagnostic biomarkers. The aim of this review was to provide an update on diagnosis and screening of patients with FD.
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Affiliation(s)
- Irfan Vardarli
- Department of Medicine I, Klinikum Vest, Knappschaftskrankenhaus Recklinghausen, Academic Teaching Hospital, Ruhr-University Bochum, Recklinghausen, Germany.,Herz- Und Gefäßzentrum Klinikum Vest, Recklinghausen, Germany
| | | | - Ken Herrmann
- Department of Nuclear Medicine, University Hospital Essen, Essen, Germany
| | - Frank Weidemann
- Department of Medicine I, Klinikum Vest, Knappschaftskrankenhaus Recklinghausen, Academic Teaching Hospital, Ruhr-University Bochum, Recklinghausen, Germany.,Herz- Und Gefäßzentrum Klinikum Vest, Recklinghausen, Germany
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