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McCullagh M, Hughes S, Canning A, Napier S, Gillmore J, McCarron MO. Hereditary transthyretin amyloidosis presenting with prominent autonomic dysfunction. Pract Neurol 2024:pn-2023-004048. [PMID: 38834303 DOI: 10.1136/pn-2023-004048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/17/2024] [Indexed: 06/06/2024]
Abstract
A 56-year-old man reported 2 years of slowly progressive exertional fatigue, presyncope, paraesthesia, generalised weakness and nocturnal bowel frequency. He had an abnormal Valsalva ratio and significant postural hypotension. Serum N-terminal pro-B-type natriuretic peptide and troponin T were elevated. Transthoracic echocardiogram identified thickening of the biventricular walls, interatrial septum and atrioventricular valve leaflets. Global longitudinal strain was reduced with relative apical sparing, suspicious for cardiac amyloidosis. Technetium-99m and 3,3-diphosphono-1,2-propanodicarboxylic acid scintigraphy supported a diagnosis of transthyretin amyloidosis (ATTR). However, urinary Bence Jones protein (kappa) was identified despite a normal kappa/lambda light chain ratio and no serum paraprotein. Bone marrow and buccal biopsy provided histological confirmation of amyloid. The bone marrow had no evidence of plasma cell dyscrasia but positive TTR immunohistochemistry. The patient had a T60A genetic mutation for hereditary ATTR. Overlapping cardiac and autonomic symptoms prompt an amyloid workup, which then must distinguish AL amyloid from ATTR pathology.
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Affiliation(s)
| | | | - Adam Canning
- Cardiology, Altnagelvin Area Hospital, Derry, UK
| | | | - Julian Gillmore
- Centre for Amyloid and Acute Phase Proteins Division of Medicine, Royal Free Hospital, London, UK
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2
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Berends M, Brunger AF, Bijzet J, Kroesen BJ, Drost G, Lange F, Teunissen CE, In 't Veld S, Vrancken AF, Gans ROB, Hazenberg BPC, van der Zwaag PA, Nienhuis HLA. Longitudinal analysis of serum neurofilament light chain levels as marker for neuronal damage in hereditary transthyretin amyloidosis. Amyloid 2024; 31:132-141. [PMID: 38477065 DOI: 10.1080/13506129.2024.2327342] [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: 11/14/2023] [Accepted: 02/29/2024] [Indexed: 03/14/2024]
Abstract
OBJECTIVE To evaluate serum neurofilament light chain (sNfL) as biomarker of disease onset, progression and treatment effect in hereditary transthyretin (ATTRv) amyloidosis patients and TTR variant (TTRv) carriers. METHODS sNfL levels were assessed longitudinally in persistently asymptomatic TTRv carriers (N = 12), persistently asymptomatic ATTRv amyloidosis patients (defined as asymptomatic patients but with amyloid detectable in subcutaneous abdominal fat tissue) (N = 8), in TTRv carriers who developed polyneuropathy (N = 7) and in ATTRv amyloidosis patients with polyneuropathy on treatment (TTR-stabiliser (N = 20) or TTR-silencer (N = 18)). Polyneuropathy was confirmed by nerve conduction studies or quantitative sensory testing. sNfL was analysed using a single-molecule array assay. RESULTS sNfL increased over 2 years in persistently asymptomatic ATTRv amyloidosis patients, but did not change in persistently asymptomatic TTRv carriers. In all TTRv carriers who developed polyneuropathy, sNfL increased from 8.4 to 49.8 pg/mL before the onset of symptoms and before polyneuropathy could be confirmed neurophysiologically. In symptomatic ATTRv amyloidosis patients on a TTR-stabiliser, sNfL remained stable over 2 years. In patients on a TTR-silencer, sNfL decreased after 1 year of treatment. CONCLUSION sNfL is a biomarker of early neuronal damage in ATTRv amyloidosis already before the onset of polyneuropathy. Current data support the use of sNfL in screening asymptomatic TTRv carriers and in monitoring of disease progression and treatment effect.
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Affiliation(s)
- Milou Berends
- Department of Internal Medicine, University Medical Center Groningen, Groningen, The Netherlands
- Amyloidosis Center of Expertise, University Medical Center Groningen, Groningen, The Netherlands
| | - Anne F Brunger
- Amyloidosis Center of Expertise, University Medical Center Groningen, Groningen, The Netherlands
- Department of Rheumatology & Clinical Immunology, University Medical Center Groningen, Groningen, The Netherlands
| | - Johan Bijzet
- Amyloidosis Center of Expertise, University Medical Center Groningen, Groningen, The Netherlands
- Department of Laboratory Medicine, University Medical Center Groningen, Groningen, The Netherlands
| | - Bart-Jan Kroesen
- Amyloidosis Center of Expertise, University Medical Center Groningen, Groningen, The Netherlands
- Department of Laboratory Medicine, University Medical Center Groningen, Groningen, The Netherlands
| | - Gea Drost
- Amyloidosis Center of Expertise, University Medical Center Groningen, Groningen, The Netherlands
- Department of Neurology, University Medical Center Groningen, Groningen, The Netherlands
| | - Fiete Lange
- Amyloidosis Center of Expertise, University Medical Center Groningen, Groningen, The Netherlands
- Department of Neurology, University Medical Center Groningen, Groningen, The Netherlands
| | - Charlotte E Teunissen
- Department of Laboratory Medicine, Amsterdam Neuroscience, Amsterdam University Medical Centers, Vrije Universiteit, Amsterdam, The Netherlands
| | - Sjors In 't Veld
- Department of Laboratory Medicine, Amsterdam Neuroscience, Amsterdam University Medical Centers, Vrije Universiteit, Amsterdam, The Netherlands
| | | | - Reinold O B Gans
- Department of Internal Medicine, University Medical Center Groningen, Groningen, The Netherlands
- Amyloidosis Center of Expertise, University Medical Center Groningen, Groningen, The Netherlands
| | - Bouke P C Hazenberg
- Amyloidosis Center of Expertise, University Medical Center Groningen, Groningen, The Netherlands
- Department of Rheumatology & Clinical Immunology, University Medical Center Groningen, Groningen, The Netherlands
| | - Paul A van der Zwaag
- Amyloidosis Center of Expertise, University Medical Center Groningen, Groningen, The Netherlands
- Department of Medical Genetics, University Medical Center Groningen, Groningen, The Netherlands
| | - Hans L A Nienhuis
- Department of Internal Medicine, University Medical Center Groningen, Groningen, The Netherlands
- Amyloidosis Center of Expertise, University Medical Center Groningen, Groningen, The Netherlands
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3
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Cappello M, Barbara G, Bellini M, Consalvo D, Di Sabatino A, Marasco G, Principi M, Savarino EV, Tortora A, Obici L. Identification and management of gastrointestinal manifestations of hereditary transthyretin amyloidosis: Recommendations from an Italian group of experts. Dig Liver Dis 2024; 56:1014-1020. [PMID: 38105149 DOI: 10.1016/j.dld.2023.11.025] [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: 10/26/2023] [Accepted: 11/23/2023] [Indexed: 12/19/2023]
Abstract
Gastrointestinal manifestations are common across all hereditary transthyretin amyloidosis (ATTRv) genotypes. However, they are poorly specific, and their recognition as part of ATTRv is difficult, resulting in misdiagnosis with more common conditions. Moreover, delays in diagnosis occur because of fragmented knowledge, a shortage of centers of excellence and specialists dedicated to ATTRv management, and the scarce involvement of gastroenterologists in multidisciplinary teams. A group of Italian gastroenterologists with experience in the management of ATTRv took part in a project aimed at assessing the awareness of ATTRv among the community of Italian gastroenterologists through an online survey and providing education about practical aspects of ATTRv management. Survey results reported low participation, and very few patients with ATTRv were cared for by gastroenterologists. This highlights the need for greater attention to rare diseases in gastroenterology and emphasizes increasing awareness of ATTRv and diagnostic suspicion. Based on the experts' recommendations, a diagnosis of ATTRv should be suspected when at least one of the 'red flags' is detected. Subsequently, it is suggested to promptly ask for genetic testing and exclude a serum and urinary monoclonal protein, even before the detection of amyloid in biopsy samples, particularly in non-endemic areas.
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Affiliation(s)
- Maria Cappello
- Gastroenterology and Hepatology Section, ProMiSe Department, University of Palermo, Piazza delle Cliniche 2, 90127, Palermo, Italy.
| | - Giovanni Barbara
- Department of Medical and Surgical Sciences, University of Bologna, via Massarenti 9, 40138, Bologna, Italy; IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Albertoni 15, 40138, Bologna, Italy
| | - Massimo Bellini
- Gastroenterology Unit, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Via Savi 10, 56126, Pisa, Italy
| | - Danilo Consalvo
- Department of Gastroenterology and Digestive Endoscopy, AORN ``Antonio Cardarelli'', Via Antonio Cardarelli 9, 80131, Napoli, Italy
| | - Antonio Di Sabatino
- Department of Internal Medicine and Therapeutics, University of Pavia, Piazzale Golgi 19, 27100 Pavia, Italy; First Department of Internal Medicine, IRCCS San Matteo Hospital Foundation, Piazzale Golgi 19, 27100 Pavia, Italy
| | - Giovanni Marasco
- Department of Medical and Surgical Sciences, University of Bologna, via Massarenti 9, 40138, Bologna, Italy; IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Albertoni 15, 40138, Bologna, Italy
| | - Mariabeatrice Principi
- Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), University of Bari, Piazza Umberto I, 70121, Bari, Italy
| | - Edoardo Vincenzo Savarino
- Gastroenterology Unit, Azienda Ospedale Università di Padova, via Nicolò Giustiniani 2, 35100, Padova, Italy; Department of Surgery, Oncology and Gastroenterology, University of Padua, via Nicolò Giustiniani 2, 35100, Italy
| | - Annalisa Tortora
- UOC Gastroenterologia, Azienda Ospedaliera Universitaria Integrata di Verona, Piazzale L.A. Scuro, 10, 37134 Verona VR, Italy
| | - Laura Obici
- Rare Diseases Unit and Amyloidosis Research and Treatment Centre, IRCCS San Matteo Hospital Foundation, viale Camillo Golgi 19, 27100, Pavia, Italy
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Adams D, Cintas P, Solé G, Tard C, Labeyrie C, Echaniz-Laguna A, Cauquil C, Pereon Y, Magy L, Morales RJ, Antoine JC, Lagrange E, Petiot P, Mallaret M, Francou B, Guiochon-Mantel A, Coste A, Demarcq O, Geffroy C, Famelart V, Rudant J, Bartoli M, Donal E, Lairez O, Eicher JC, Kharoubi M, Oghina S, Trochu JN, Inamo J, Habib G, Roubille F, Hagège A, Morio F, Cariou E, Adda J, Slama MS, Charron P, Algalarrondo V, Damy T, Attarian S. Transthyretin amyloid polyneuropathy in France: A cross-sectional study with 413 patients and real-world tafamidis meglumine use (2009-2019). Rev Neurol (Paris) 2024:S0035-3787(24)00489-2. [PMID: 38643028 DOI: 10.1016/j.neurol.2024.02.393] [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: 05/16/2023] [Revised: 02/09/2024] [Accepted: 02/14/2024] [Indexed: 04/22/2024]
Abstract
OBJECTIVE We aimed to describe characteristics of patients with ATTR variant polyneuropathy (ATTRv-PN) and ATTRv-mixed and assess the real-world use and safety profile of tafamidis meglumine 20mg. METHODS Thirty-eight French hospitals were invited. Patient files were reviewed to identify clinical manifestations, diagnostic methods, and treatment compliance. RESULTS Four hundred and thirteen patients (296 ATTRv-PN, 117 ATTRv-mixed) were analyzed. Patients were predominantly male (68.0%) with a mean age of 57.2±17.2 years. Interval between first symptom(s) and diagnosis was 3.4±4.3 years. First symptoms included sensory complaints (85.9%), dysautonomia (38.5%), motor deficits (26.4%), carpal tunnel syndrome (31.5%), shortness of breath (13.3%), and unexplained weight loss (16.0%). Mini-invasive accessory salivary gland or punch skin and nerve biopsies were most common, with a performance of 78.8-100%. TTR genetic sequencing, performed in all patients, revealed 31 TTR variants. Tafamidis meglumine was initiated in 156/214 (72.9%) ATTRv-PN patients at an early disease stage. Median treatment duration was 6.00 years in ATTRv-PN and 3.42 years in ATTRv-mixed patients. Tafamidis was well tolerated, with 20 adverse events likely related to study drug among the 336 patients. CONCLUSION In France, ATTRv patients are usually identified early thanks to the national network and the help of diagnosis combining genetic testing and mini-invasive biopsies.
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Affiliation(s)
- D Adams
- Department of Neurology, French Reference Center for Familial Amyloid Polyneuropathy, AP-HP, CHU de Bicêtre, University Paris-Saclay, Inserm U 1195, 78, rue du Général Leclerc, 94270 Le Kremlin-Bicêtre, France.
| | - P Cintas
- Centre de référence neuromusculaire, CHU de Toulouse, Toulouse, France
| | - G Solé
- Referral Center for Neuromuscular Diseases, Pellegrin Hospital, Bordeaux, France
| | - C Tard
- Centre de référence des maladies neuromusculaires, CHU de Lille, Lille, France
| | - C Labeyrie
- Department of Neurology, French Reference Center for Familial Amyloid Polyneuropathy, AP-HP, CHU de Bicêtre, University Paris-Saclay, Inserm U 1195, 78, rue du Général Leclerc, 94270 Le Kremlin-Bicêtre, France
| | - A Echaniz-Laguna
- Department of Neurology, French Reference Center for Familial Amyloid Polyneuropathy, AP-HP, CHU de Bicêtre, University Paris-Saclay, Inserm U 1195, 78, rue du Général Leclerc, 94270 Le Kremlin-Bicêtre, France
| | - C Cauquil
- Department of Neurology, French Reference Center for Familial Amyloid Polyneuropathy, AP-HP, CHU de Bicêtre, University Paris-Saclay, Inserm U 1195, 78, rue du Général Leclerc, 94270 Le Kremlin-Bicêtre, France
| | - Y Pereon
- Centre de référence maladies neuromusculaire rares, CHU Nantes, Nantes, France
| | - L Magy
- Centre de référence neuropathies périphériques rares, CHU de Limoges, Limoges, France
| | - R Juntas Morales
- Neurology Department, ALS center, University Hospital of Montpellier, Montpellier, France
| | - J C Antoine
- Centre de référence maladies neuromusculaires rares, CHU de Saint-Étienne, Saint-Étienne, France
| | - E Lagrange
- Neurology Department, CHU Michallon, Grenoble, France
| | - P Petiot
- Medicine, 64, avenue Rockefeller, Lyon, France
| | - M Mallaret
- Neurology Department, CHU Michallon, Grenoble, France
| | - B Francou
- Molecular Genetics Pharmacogenomics and Hormonology Department, hôpital Bicêtre, Le Kremlin-Bicêtre, France
| | - A Guiochon-Mantel
- Molecular Genetics Pharmacogenomics and Hormonology Department, hôpital Bicêtre, Le Kremlin-Bicêtre, France
| | - A Coste
- Pfizer, Paris cedex 14, France
| | | | | | | | | | | | - E Donal
- University of Rennes, CHU de Rennes, Rennes, France
| | - O Lairez
- Cardiology Department, Rangueil Hospital, Toulouse, France
| | - J C Eicher
- Cardiology Department, University Hospital of Dijon, Dijon, France
| | - M Kharoubi
- Referral Center for Cardiac Amyloidosis, CHU Henri-Mondor, Créteil, France
| | - S Oghina
- Referral Center for Cardiac Amyloidosis, CHU Henri-Mondor, Créteil, France
| | - J N Trochu
- Institut du thorax, CHU de Nantes, Nantes, France
| | - J Inamo
- Cardiology Department, CHU de Martinique, Martinique, France
| | - G Habib
- Cardiology Department, La Timone Hospital, AP-HM, Marseille, France
| | - F Roubille
- Cardiology Department, CHU de Montpellier, Montpellier, France
| | - A Hagège
- Cardiology Department, hôpital européen Georges-Pompidou, Paris, France
| | - F Morio
- Institut du thorax, CHU de Nantes, Nantes, France
| | - E Cariou
- Cardiology Department, Rangueil Hospital, Toulouse, France
| | - J Adda
- Cardiology Department, hôpital Bichat, Paris, France
| | - M S Slama
- Cardiology Department, hôpital Bichat, Paris, France
| | - P Charron
- Hôpital Pitié-Salpêtrière, Sorbonne université, Paris, France
| | | | - T Damy
- Referral Center for Cardiac Amyloidosis, CHU Henri-Mondor, Créteil, France
| | - S Attarian
- Neurology Department, La Timone Hospital, AP-HM, Marseille, France
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Berends M, Nienhuis HLA, Adams D, Karam C, Luigetti M, Polydefkis M, Reilly MM, Sekijima Y, Hazenberg BPC. Neurofilament Light Chains in Systemic Amyloidosis: A Systematic Review. Int J Mol Sci 2024; 25:3770. [PMID: 38612579 PMCID: PMC11011627 DOI: 10.3390/ijms25073770] [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: 02/17/2024] [Revised: 03/08/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024] Open
Abstract
Peripheral and autonomic neuropathy are common disease manifestations in systemic amyloidosis. The neurofilament light chain (NfL), a neuron-specific biomarker, is released into the blood and cerebrospinal fluid after neuronal damage. There is a need for an early and sensitive blood biomarker for polyneuropathy, and this systematic review provides an overview on the value of NfL in the early detection of neuropathy, central nervous system involvement, the monitoring of neuropathy progression, and treatment effects in systemic amyloidosis. A literature search in PubMed, Embase, and Web of Science was performed on 14 February 2024 for studies investigating NfL levels in patients with systemic amyloidosis and transthyretin gene-variant (TTRv) carriers. Only studies containing original data were included. Included were thirteen full-text articles and five abstracts describing 1604 participants: 298 controls and 1306 TTRv carriers or patients with or without polyneuropathy. Patients with polyneuropathy demonstrated higher NfL levels compared to healthy controls and asymptomatic carriers. Disease onset was marked by rising NfL levels. Following the initiation of transthyretin gene-silencer treatment, NfL levels decreased and remained stable over an extended period. NfL is not an outcome biomarker, but an early and sensitive disease-process biomarker for neuropathy in systemic amyloidosis. Therefore, NfL has the potential to be used for the early detection of neuropathy, monitoring treatment effects, and monitoring disease progression in patients with systemic amyloidosis.
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Affiliation(s)
- Milou Berends
- Department of Internal Medicine, Amyloidosis Center of Expertise, University Medical Center Groningen, 9700 RB Groningen, The Netherlands; (M.B.); (H.L.A.N.)
| | - Hans L. A. Nienhuis
- Department of Internal Medicine, Amyloidosis Center of Expertise, University Medical Center Groningen, 9700 RB Groningen, The Netherlands; (M.B.); (H.L.A.N.)
| | - David Adams
- Service de Neurologie, CHU Bicêtre, Assistance Publique—Hôpitaux de Paris, University Paris-Saclay, CERAMIC, Le Kremlin-Bicêtre, 94270 Paris, France;
| | - Chafic Karam
- Department of Neurology, University of Pennsylvania, Philadelphia, PA 19104, USA;
| | - Marco Luigetti
- UOC Neurologia, Fondazione Policlinico A. Gemelli IRCCS, 00168 Rome, Italy;
- Dipartimento di Neuroscienze, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Michael Polydefkis
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA;
| | - Mary M. Reilly
- Centre for Neuromuscular Diseases, Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London WC1N 3BG, UK;
| | - Yoshiki Sekijima
- Department of Medicine (Neurology and Rheumatology), Shinshu University School of Medicine, Matsumoto 390-8621, Japan;
| | - Bouke P. C. Hazenberg
- Department of Rheumatology & Clinical Immunology, Amyloidosis Center of Expertise, University Medical Center Groningen, 9700 RB Groningen, The Netherlands
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Karam C, Mauermann ML, Gonzalez-Duarte A, Kaku MC, Ajroud-Driss S, Brannagan TH, Polydefkis M. Diagnosis and treatment of hereditary transthyretin amyloidosis with polyneuropathy in the United States: Recommendations from a panel of experts. Muscle Nerve 2024; 69:273-287. [PMID: 38174864 DOI: 10.1002/mus.28026] [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: 06/30/2023] [Revised: 12/04/2023] [Accepted: 12/09/2023] [Indexed: 01/05/2024]
Abstract
Hereditary transthyretin (ATTRv; v for variant) amyloidosis is a rare, multisystem, progressive, and fatal disease in which polyneuropathy is a cardinal manifestation. Due to a lack of United States (US)-specific guidance on ATTRv amyloidosis with polyneuropathy, a panel of US-based expert clinicians convened to address identification, monitoring, and treatment of this disease. ATTRv amyloidosis with polyneuropathy should be suspected in unexplained progressive neuropathy, especially if associated with systemic symptoms or family history. The diagnosis is confirmed through genetic testing, biopsy, or cardiac technetium-based scintigraphy. Treatment should be initiated as soon as possible after diagnosis, with gene-silencing therapeutics recommended as a first-line option. Consensus is lacking on what represents "disease progression" during treatment; however, the aggressive natural history of this disease should be considered when evaluating the effectiveness of any therapy.
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Affiliation(s)
- Chafic Karam
- Department of Neurology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | | | - Alejandra Gonzalez-Duarte
- Department of Neurology, Dysautonomia Center, New York University School of Medicine, New York, New York, USA
| | - Michelle C Kaku
- Department of Neurology, Boston University School of Medicine, Boston Medical Center, Boston, Massachusetts, USA
| | - Senda Ajroud-Driss
- Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Thomas H Brannagan
- Department of Neurology, Columbia University, Vagelos College of Physicians and Surgeons, New York, New York, USA
| | - Michael Polydefkis
- Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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7
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Ticau S, Aldinc E, Polydefkis M, Adams D, Coelho T, Ueda M, Hale C, Vest J, Nioi P. Treatment response and neurofilament light chain levels with long-term patisiran in hereditary transthyretin-mediated amyloidosis with polyneuropathy: 24-month results of an open-label extension study. Amyloid 2024; 31:1-11. [PMID: 37469249 DOI: 10.1080/13506129.2023.2232520] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 06/13/2023] [Accepted: 06/27/2023] [Indexed: 07/21/2023]
Abstract
BACKGROUND Longitudinal changes in neurofilament light chain (NfL) levels were evaluated alongside prespecified clinical assessments 24 months into the patisiran Global open-label extension (OLE) study in patients with ATTRv amyloidosis with polyneuropathy. METHODS All patients enrolled in the Global OLE, from phase III APOLLO and phase II OLE parent studies, received patisiran. Assessments included measures of polyneuropathy (modified Neuropathy Impairment Score+7 (mNIS+7)), quality of life (QOL; Norfolk QOL-Diabetic Neuropathy questionnaire (Norfolk QOL-DN)), and plasma NfL. RESULTS Patients receiving patisiran in the parent study (APOLLO-patisiran, n = 137; phase II OLE-patisiran, n = 25) demonstrated sustained improvements in mNIS+7 (mean change from parent study baseline (95% confidence interval): APOLLO-patisiran -4.8 (-8.9, -0.6); phase II OLE-patisiran -5.8 (-10.5, -1.2)) and Norfolk QOL-DN (APOLLO-patisiran -2.4 (-7.2, 2.3)), and maintained reduced NfL levels at Global OLE 24 months. After initiating patisiran in the Global OLE, APOLLO-placebo patients (n = 49) demonstrated stabilized mNIS+7, improved Norfolk QOL-DN, and significantly reduced NfL levels. Patisiran continued to demonstrate an acceptable safety profile. Earlier patisiran initiation was associated with a lower exposure-adjusted mortality rate. CONCLUSIONS Long-term patisiran treatment led to sustained improvements in neuropathy and QOL, with NfL demonstrating potential as a biomarker for disease progression and treatment response in ATTRv amyloidosis with polyneuropathy.
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Affiliation(s)
| | | | - Michael Polydefkis
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - David Adams
- Neurology Department, AP-HP, CHU Bicêtre, Université Paris-Saclay, Paris-Saclay, France
| | - Teresa Coelho
- Centro Hospitalar Universitário Santo António, European Reference Network - EUroNMD, Porto, Portugal
| | - Mitsuharu Ueda
- Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | | | - John Vest
- Alnylam Pharmaceuticals, Cambridge, MA, USA
| | - Paul Nioi
- Alnylam Pharmaceuticals, Cambridge, MA, USA
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8
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Chen SY, Zou YF. FAP due to a rare Gly67Glu mutation in the TTR gene. Acta Neurol Belg 2024; 124:315-318. [PMID: 37318746 DOI: 10.1007/s13760-023-02304-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 06/02/2023] [Indexed: 06/16/2023]
Affiliation(s)
- Shui-Ying Chen
- Department of Rehabilitation, Chang Gung Memorial Hospital, Xiamen, China
| | - Ya-Fen Zou
- Department of Neurology, Chang Gung Memorial Hospital, Xiafei Road 123, Haicang District, Xiamen, China.
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9
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Çavuşoğlu Y, Başarıcı İ, Tüfekçioğlu O, Özpelit E, Özdemir E, Sivrikoz İA, Altay H, Değertekin M, Dinçer İ, İkitimur B, Kahveci G, Bozkurt MF, Erkılıç M, Kaya GÇ, Beksaç M, Salihoğlu A, Tokgözoğlu L. Current barriers and recommendations on the diagnosis of transthyretin amyloid cardiomyopathy: a Delphi study. Front Cardiovasc Med 2024; 11:1299261. [PMID: 38333414 PMCID: PMC10851939 DOI: 10.3389/fcvm.2024.1299261] [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] [Received: 09/22/2023] [Accepted: 01/02/2024] [Indexed: 02/10/2024] Open
Abstract
Objectives This study has been conducted to investigate the non-invasive diagnostic journey of patients with a transthyretin amyloid cardiomyopathy (aTTR-CM) in Turkey, identify the challenges and uncertainties encountered on the path to diagnosis from the perspectives of expert physicians, and develop recommendations that can be applied in such cases. Methods This study employed a three-round modified Delphi method and included 10 cardiologists and five nuclear medicine specialists. Two hematologists also shared their expert opinions on the survey results related to hematological tests during a final face-to-face discussion. A consensus was reached when 80% or more of the panel members marked the "agree/strongly agree" or "disagree/strongly disagree" option. Results The panelists unanimously agreed that the aTTR-CM diagnosis could be established through scintigraphy (using either 99mTc-PYP, 99mTc-DPD, or 99mTc-HMPD) in a patient with suspected cardiac amyloidosis (CA) without a further investigation if AL amyloidosis is ruled out (by sFLC, SPIE and UPIE). In addition, scintigraphy imaging performed by SPECT or SPECT-CT should reveal a myocardial uptake of Grade ≥2 with a heart-to-contralateral (H/CL) ratio of ≥1.5. The cardiology panelists recommended using cardiovascular magnetic resonance (CMR) and a detailed echocardiographic scoring as a last resort before considering an endomyocardial biopsy in patients with suspected CA whose scintigraphy results were discordant/inconclusive or negative but still carried a high clinical suspicion of aTTR-CM. Conclusion The diagnostic approach for aTTR-CM should be customized based on the availability of diagnostic tools/methods in each expert clinic to achieve a timely and definitive diagnosis.
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Affiliation(s)
- Yüksel Çavuşoğlu
- Department of Cardiology, Eskisehir Osmangazi University Medical Faculty Hospital, Eskisehir, Turkey
| | - İbrahim Başarıcı
- Department of Cardiology, Akdeniz University Medical Faculty Hospital, Antalya, Turkey
| | - Omaç Tüfekçioğlu
- Department of Cardiology, University of Health Sciences Ankara City Hospital, Ankara, Turkey
| | - Ebru Özpelit
- Department of Cardiology, Dokuz Eylul University Medical Faculty Hospital, Izmir, Turkey
| | - Elif Özdemir
- Department of Nuclear Medicine, Ankara Yildirim Beyazit University, Ankara City Hospital, Ankara, Turkey
| | - İlknur Ak Sivrikoz
- Department of Nuclear Medicine, Eskişehir Osmangazi University Medical Faculty Hospital, Eskisehir, Turkey
| | - Hakan Altay
- Department of Cardiology, Baskent University Medical Faculty Hospital, Istanbul, Turkey
| | - Muzaffer Değertekin
- Department of Cardiology, Yeditepe University Medical Faculty Hospital, Istanbul, Turkey
| | - İrem Dinçer
- Department of Cardiology, Ankara University Medical Faculty Hospital, Ankara, Turkey
| | - Barış İkitimur
- Department of Cardiology, Istanbul University Medical Faculty Hospital, Istanbul, Turkey
| | - Gökhan Kahveci
- Department of Cardiology, Başakşehir Çam Sakura City Hospital, Istanbul, Turkey
| | - Murat Fani Bozkurt
- Department of Nuclear Medicine, Hacettepe University Medical Faculty Hospital, Ankara, Turkey
| | - Metin Erkılıç
- Department of Nuclear Medicine, Akdeniz University Medical Faculty Hospital, Antalya, Turkey
| | - Gamze Çapa Kaya
- Department of Nuclear Medicine, Dokuz Eylul University Medical Faculty Hospital, Izmir, Turkey
| | - Meral Beksaç
- Department of Internal Diseases, Division of Hematology, Ankara University Medical Faculty Hospital, Ankara, Turkey
| | - Ayşe Salihoğlu
- Department of Internal Diseases, Division of Hematology, Istanbul University Medical Faculty Hospital, Istanbul, Turkey
| | - Lale Tokgözoğlu
- Department of Cardiology, Hacettepe University Medical Faculty Hospital, Ankara, Turkey
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10
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González-Moreno J, Gragera-Martínez Á, Rodríguez A, Borrachero-Garro C, García-Garrido S, Barceló C, Manovel-Sánchez A, Ribot-Sansó MA, Ibargüen-González L, Gomila R, Muñoz-Beamud F, Losada-López I, Cisneros-Barroso E. Biomarkers of axonal damage to favor early diagnosis in variant transthyretin amyloidosis (A-ATTRv). Sci Rep 2024; 14:581. [PMID: 38182630 PMCID: PMC10770310 DOI: 10.1038/s41598-023-50212-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 12/16/2023] [Indexed: 01/07/2024] Open
Abstract
Early identification of ATTRv amyloidosis disease onset is still often delayed due to the lack of validated biomarkers of this disease. Light chain neurofilament (NfL) have shown promising results in early diagnosis in this disease, but data is still needed, including with alternative measuring methods. Our aim was to study the levels of NfL measured by ELISA. Furthermore, interstitial matrix metalloproteinase type 1 (MMP-1) serum levels were measured as a potential new biomarker in ATTRv. Serum NfL and MMP-1 were measured using ELISA assays in 90 participants (29 ATTR-V30M patients, 31 asymptomatic V30M-TTR variant carriers and 30 healthy controls). Median NfL levels among ATTRv amyloidosis patients were significantly higher (116 pg/mL vs 0 pg/mL in both comparison groups). The AUC comparing ATTRv amyloidosis patients and asymptomatic carriers was 0.90 and the NfL concentration of 93.55 pg/mL yielded a sensitivity of 79% and a specificity of 87%. NfL levels had a significant positive correlation with NIS values among patients. We found a negative significant correlation between eGFR and NfL levels. Finally, MMP1 levels were not different between groups. Evidence of NfL use for early diagnosis of ATTR-PN amyloidosis is growing. ELISA seems a reliable and available technique for it quantification. Decreased GFR could influence NfL plasma levels.
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Affiliation(s)
- Juan González-Moreno
- Balearic Research Group in Genetic Cardiopathies, Sudden Death and TTR Amyloidosis, Health Research Institute of the Balearic Islands (IdISBa), Palma, Balearic Islands, Spain
- Internal Medicine Department, Hospital Universitario Son Llàtzer, Crta Manacor Km 4, 07198, Palma, Balearic Islands, Spain
| | - Álvaro Gragera-Martínez
- Clinical Analysis Department, Genetic Unit, Hospital Universitario Juan Ramón Jiménez, Huelva, Spain
- Cardiology Department, Hospital Universitario Juan Ramón Jiménez, Huelva, Spain
| | - Adrián Rodríguez
- Balearic Research Group in Genetic Cardiopathies, Sudden Death and TTR Amyloidosis, Health Research Institute of the Balearic Islands (IdISBa), Palma, Balearic Islands, Spain
| | - Cristina Borrachero-Garro
- Internal Medicine Department, Hospital Universitario Juan Ramón Jiménez, Huelva, Spain
- Cardiology Department, Hospital Universitario Juan Ramón Jiménez, Huelva, Spain
| | | | - Carles Barceló
- Translational Pancreatic Cancer Oncogenesis Group, Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain
| | - Ana Manovel-Sánchez
- Cardiology Department, Hospital Universitario Juan Ramón Jiménez, Huelva, Spain
- Multidisciplinary ATTR Unit, Hospital Universitario Juan Ramón Jiménez, Huelva, Spain
| | - Maria Antonia Ribot-Sansó
- Balearic Research Group in Genetic Cardiopathies, Sudden Death and TTR Amyloidosis, Health Research Institute of the Balearic Islands (IdISBa), Palma, Balearic Islands, Spain
- Internal Medicine Department, Hospital Universitario Son Llàtzer, Crta Manacor Km 4, 07198, Palma, Balearic Islands, Spain
| | - Lesly Ibargüen-González
- Translational Pancreatic Cancer Oncogenesis Group, Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain
| | - Rosa Gomila
- Department of Chemistry, Universitat de les Illes Balears, Crta de Valldemossa Km 7.5, 07122, Palma de Mallorca, Baleares, Spain
| | - Francisco Muñoz-Beamud
- Internal Medicine Department, Hospital Universitario Juan Ramón Jiménez, Huelva, Spain
- Cardiology Department, Hospital Universitario Juan Ramón Jiménez, Huelva, Spain
| | - Inés Losada-López
- Balearic Research Group in Genetic Cardiopathies, Sudden Death and TTR Amyloidosis, Health Research Institute of the Balearic Islands (IdISBa), Palma, Balearic Islands, Spain
- Internal Medicine Department, Hospital Universitario Son Llàtzer, Crta Manacor Km 4, 07198, Palma, Balearic Islands, Spain
| | - Eugenia Cisneros-Barroso
- Balearic Research Group in Genetic Cardiopathies, Sudden Death and TTR Amyloidosis, Health Research Institute of the Balearic Islands (IdISBa), Palma, Balearic Islands, Spain.
- Servicio de Medicina Interna, Hospital Universitario Son Llàtzer, Crta Manacor Km 4, 07198, Palma, Spain.
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11
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Yeh S, Yeh T, Wang Y, Chao C, Tzeng S, Tang T, Hsieh J, Kan Y, Yang W, Hsieh S. Nerve pathology of microangiopathy and thromboinflammation in hereditary transthyretin amyloidosis. Ann Clin Transl Neurol 2024; 11:30-44. [PMID: 37902278 PMCID: PMC10791016 DOI: 10.1002/acn3.51930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 10/10/2023] [Indexed: 10/31/2023] Open
Abstract
OBJECTIVE Despite amyloid deposition as a hallmark of hereditary transthyretin amyloidosis (ATTRv) with polyneuropathy, this pathology could not completely account for nerve degeneration. ATTRv patients frequently have vasomotor symptoms, but microangiopathy hypothesis in ATTRv was not systemically clarified. METHODS This study examined the vascular pathology of sural nerves in ATTRv patients with transthyretin (TTR) mutation of p.Ala117Ser (TTR-A97S), focusing on morphometry and patterns of molecular expression in relation to nerve degeneration. We further applied human microvascular endothelial cell (HMEC-1) culture to examine the direct effect of TTR-A97S protein on endothelial cells. RESULTS In ATTRv nerves, there was characteristic microangiopathy compared to controls: increased vessel wall thickness and decreased luminal area; both were correlated with the reduction of myelinated fiber density. Among the components of vascular wall, the area of collagen IV in ATTRv nerves was larger than that of controls. This finding was validated in a cell model of HMEC-1 culture in which the expression of collagen IV was upregulated after exposure to TTR-A97S. Apoptosis contributed to the endothelial cell degeneration of microvasculatures in ATTRv endoneurium. ATTRv showed prothrombotic status with intravascular fibrin deposition, which was correlated with (1) increased tissue factor and coagulation factor XIIIA and (2) reduced tissue plasminogen activator. This cascade led to intravascular thrombin deposition, which was colocalized with upregulated p-selectin and thrombomodulin, accompanied by complement deposition and macrophages infiltration, indicating thromboinflammation in ATTRv. INTERPRETATION Microangiopathy with thromboinflammation is characteristic of advanced-stage ATTRv nerves, which provides an add-on mechanism and therapeutic target for nerve degeneration.
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Affiliation(s)
- Shin‐Joe Yeh
- Department of NeurologyNational Taiwan University HospitalTaipeiTaiwan
| | - Ti‐Yen Yeh
- Department of Anatomy and Cell BiologyNational Taiwan University College of MedicineTaipeiTaiwan
| | - Yi‐Shiang Wang
- Institute of Biochemistry and Molecular BiologyNational Taiwan University College of MedicineTaipeiTaiwan
| | - Chi‐Chao Chao
- Department of NeurologyNational Taiwan University HospitalTaipeiTaiwan
| | - Shiou‐Ru Tzeng
- Institute of Biochemistry and Molecular BiologyNational Taiwan University College of MedicineTaipeiTaiwan
| | - Tsz‐Yi Tang
- Department of UrologyKaohsiung Medical University Hospital, Kaohsiung Medical UniversityKaohsiungTaiwan
- Department of UrologyKaohsiung Municipal Siaogang HospitalKaohsiungTaiwan
| | - Jung‐Hsien Hsieh
- Department of SurgeryNational Taiwan University HospitalTaipeiTaiwan
| | - Yu‐Yu Kan
- Department of Anatomy and Cell Biology, School of MedicineCollege of Medicine, Taipei Medical UniversityTaipeiTaiwan
- School of Medicine, College of Medicine, National Sun Yat‐Sen UniversityKaohsiungTaiwan
| | - Wei‐Kang Yang
- Department of Anatomy and Cell BiologyNational Taiwan University College of MedicineTaipeiTaiwan
| | - Sung‐Tsang Hsieh
- Department of NeurologyNational Taiwan University HospitalTaipeiTaiwan
- Department of Anatomy and Cell BiologyNational Taiwan University College of MedicineTaipeiTaiwan
- Graduate Institute of Clinical Medicine, National Taiwan University College of MedicineTaipeiTaiwan
- Graduate Institute of Brain and Mind Sciences, National Taiwan University College of MedicineTaipeiTaiwan
- Center of Precision MedicineNational Taiwan University College of MedicineTaipeiTaiwan
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12
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Orlov FI, Ansheles AA, Nasonova SN, Saidova MA, Zhirov IV, Stepanova EA, Suvorina MY, Shoshina AA, Tereshchenko SN, Sergienko VB. [Difficulties in differential diagnosis of the AL- and ATTR-cardiac amyloidosis. Case report]. TERAPEVT ARKH 2023; 95:789-795. [PMID: 38158923 DOI: 10.26442/00403660.2023.09.202376] [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: 03/12/2023] [Indexed: 01/03/2024]
Abstract
The article presents a clinical case describing a complex differential diagnosis of cardiac amyloidosis types and verification of the diagnosis of AL-amyloidosis.
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Affiliation(s)
- F I Orlov
- Chazov National Medical Research Center of Cardiology
| | - A A Ansheles
- Chazov National Medical Research Center of Cardiology
| | - S N Nasonova
- Chazov National Medical Research Center of Cardiology
| | - M A Saidova
- Chazov National Medical Research Center of Cardiology
| | - I V Zhirov
- Chazov National Medical Research Center of Cardiology
- Russian Medical Academy of Continuous Professional Education
| | - E A Stepanova
- Russian Medical Academy of Continuous Professional Education
| | | | - A A Shoshina
- Chazov National Medical Research Center of Cardiology
| | | | - V B Sergienko
- Chazov National Medical Research Center of Cardiology
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13
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Toppeta A, Dell'Era A, Molteni P, Ardizzone S. Severe chronic diarrhoea caused by hereditary transthyretin amyloidosis. BMJ Case Rep 2023; 16:e256673. [PMID: 37844979 PMCID: PMC10583022 DOI: 10.1136/bcr-2023-256673] [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] [Accepted: 09/25/2023] [Indexed: 10/18/2023] Open
Abstract
Amyloidosis includes a heterogeneous group of diseases caused by the extracellular deposition of insoluble fibrillar proteins, leading to multiple organ dysfunction and a poor life expectancy. In the early stages of amyloidosis, gastrointestinal (GI) symptoms are uncommon. We describe a rare case of hereditary transthyretin amyloidosis (ATTRv) with involvement of the heart, nervous system and GI tract. A man in his 60s was hospitalised due to chronic diarrhoea, orthostatic hypotension, malabsorption and weight loss. An organic origin for the diarrhoea was suspected, but the most common causes were ruled out. The review of GI biopsies and an abdominal fat aspirate confirmed the diagnosis of amyloidosis. The diagnosis of ATTRv amyloidosis with GI presentation is challenging, especially in the early stages, and misdiagnosis is common. The recent approval of therapies emphasises the importance of early diagnosis to prevent irreversible organ damage.
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Affiliation(s)
- Angelica Toppeta
- Gastroenterology Unit, Department of Biomedical and Clinical Sciences, University of Milan, Milano, Italy
| | - Alessandra Dell'Era
- Gastroenterology Unit, Department of Biomedical and Clinical Sciences, University of Milan, Milano, Italy
- Gastroenterology and Endoscopy Unit, ASST Fatebenefratelli-Sacco, Milano, Lombardia, Italy
| | - Paola Molteni
- Gastroenterology and Endoscopy Unit, ASST Fatebenefratelli-Sacco, Milano, Lombardia, Italy
| | - Sandro Ardizzone
- Gastroenterology and Endoscopy Unit, ASST Fatebenefratelli-Sacco, Milano, Lombardia, Italy
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14
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Ando Y, Waddington-Cruz M, Sekijima Y, Koike H, Ueda M, Konishi H, Ishii T, Coelho T. Optimal practices for the management of hereditary transthyretin amyloidosis: real-world experience from Japan, Brazil, and Portugal. Orphanet J Rare Dis 2023; 18:323. [PMID: 37828588 PMCID: PMC10571420 DOI: 10.1186/s13023-023-02910-3] [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: 04/10/2023] [Accepted: 09/05/2023] [Indexed: 10/14/2023] Open
Abstract
Hereditary transthyretin (ATTRv) amyloidosis is a rare and autosomal dominant disorder associated with mutations in the transthyretin gene. Patients present with diverse symptoms related to sensory, motor, and autonomic neuropathy, as well as gastrointestinal, ocular, cardiac, renal and orthopedic symptoms, resulting from the deposition of transthyretin amyloid fibrils in multiple organs. The progressive nature of ATTRv amyloidosis necessitates pre- and post-onset monitoring of the disease. This review article is primarily based on a collation of discussions from a medical advisory board meeting in August 2021. In this article, we summarize the best practices in amyloidosis centers in three major endemic countries for ATTRv amyloidosis (Japan, Brazil, and Portugal), where most patients carry the Val30Met mutation in the transthyretin gene and the patients' genetic background was proven to be the same. The discussions highlighted the similarities and differences in the management of asymptomatic gene mutation carriers among the three countries in terms of the use of noninvasive tests and tissue biopsies and timing of starting the investigations. In addition, this article discusses a set of practical tests and examinations for monitoring disease progression applicable to neurologists working in diverse medical settings and generalizable in non-endemic countries and areas. This set of assessments consists of periodic (every 6 to 12 months) evaluations of patients' nutritional status and autonomic, renal, cardiac, ophthalmologic, and neurological functions. Physical examinations and patient-reported outcome assessments should be also scheduled every 6 to 12 months. Programs for monitoring gene mutation carriers and robust referral networks can aid in appropriate patient management in pre- to post-onset stages. For pre- and post-symptom onset testing for ATTRv amyloidosis, various noninvasive techniques are available; however, their applicability differs depending on the medical setting in each country and region, and the optimal option should be selected in view of the clinical settings, medical environment, and available healthcare resources in each region.
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Affiliation(s)
- Yukio Ando
- Department of Amyloidosis Research, Faculty of Pharmaceutical Sciences, Nagasaki International University, 2825-7 Huis Ten Bosch Machi, Sasebo City, Nagasaki, 859-3298, Japan.
| | - Marcia Waddington-Cruz
- Hospital Universitário Clementino Fraga Filho, Centro de Estudos em Paramiloidose Antônio Rodrigues de Mello, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Yoshiki Sekijima
- Department of Medicine (Neurology and Rheumatology), Shinshu University School of Medicine, Matsumoto, Japan
| | - Haruki Koike
- Department of Neurology, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Division of Neurology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Mitsuharu Ueda
- Department of Neurology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | | | | | - Teresa Coelho
- Andrade's Center for Familial Amyloidosis, Hospital Santo António, Centro Hospitalar Universitário Do Porto, Porto, Portugal
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15
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Durelle C, Delmont E, Michel C, Trabelsi A, Hostin MA, Ogier A, Bendahan D, Attarian S. Quantification of muscle involvement in familial amyloid polyneuropathy using MRI. Eur J Neurol 2023; 30:3286-3295. [PMID: 37422895 DOI: 10.1111/ene.15970] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 06/09/2023] [Accepted: 07/04/2023] [Indexed: 07/11/2023]
Abstract
BACKGROUND AND PURPOSE Transthyretin familial amyloid polyneuropathy (TTR-FAP) is a rare genetic disease with autosomal-dominant inheritance. In this study, we aimed to quantify fatty infiltration (fat fraction [FF]) and magnetization transfer ratio (MTR) in individual muscles of patients with symptomatic and asymptomatic TTR-FAP using magnetic resonance imaging. Secondarily, we aimed to assess correlations with clinical and electrophysiological variables. METHODS A total of 39 patients with a confirmed mutation in the TTR gene (25 symptomatic and 14 asymptomatic) and 14 healthy volunteers were included. A total of 16 muscles were manually delineated in the nondominant lower limb from T1-weighted anatomical images. The corresponding masks were propagated on the MTR and FF maps. Detailed neurological and electrophysiological examinations were conducted in each group. RESULTS The MTR was decreased (42.6 AU; p = 0.001) and FF was elevated (14%; p = 0.003) in the lower limbs of the symptomatic group, with preferential posterior and lateral involvement. In the asymptomatic group, elevated FF was quantified in the gastrocnemius lateralis muscle (11%; p = 0.021). FF was significantly correlated with disease duration (r = 0.49, p = 0.015), neuropathy impairment score for the lower limb (r = 0.42, p = 0.041), Overall Neuropathy Limitations Scale score (r = 0.49, p = 0.013), polyneuropathy disability score (r = 0.57, p = 0.03) and the sum of compound muscle action potential (r = 0.52, p = 0.009). MTR was strongly correlated to FF (r = 0.78, p < 0.0001), and a few muscles with an FF within the normal range had a reduced MTR. CONCLUSION These observations suggest that FF and MTR could be interesting biomarkers in TTR-FAP. In asymptomatic patients, FF in the gastrocnemius lateralis muscle could be a good indicator of the transition from an asymptomatic to a symptomatic form of the disease. MTR could be an early biomarker of muscle alterations.
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Affiliation(s)
- Clémence Durelle
- Centre de référence des maladies neuromusculaires et de la SLA, hôpitaux universitaires de Marseille, Marseille, France
| | - Emilien Delmont
- Centre de référence des maladies neuromusculaires et de la SLA, hôpitaux universitaires de Marseille, Marseille, France
| | - Constance Michel
- Centre de résonance magnétique biologique et médicale (Crmbm), Marseille, France
| | - Amira Trabelsi
- Aix-Marseille Univ, CNRS, Centrale Marseille, Institute Fresnel, Marseille, France
| | - Marc-Adrien Hostin
- Centre de résonance magnétique biologique et médicale (Crmbm), Marseille, France
| | - Augustin Ogier
- Department of Radiology, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland
| | - David Bendahan
- Centre de résonance magnétique biologique et médicale (Crmbm), Marseille, France
| | - Shahram Attarian
- Centre de référence des maladies neuromusculaires et de la SLA, hôpitaux universitaires de Marseille, Marseille, France
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16
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Nie T, Heo YA, Shirley M. Vutrisiran: A Review in Polyneuropathy of Hereditary Transthyretin-Mediated Amyloidosis. Drugs 2023; 83:1425-1432. [PMID: 37728865 DOI: 10.1007/s40265-023-01943-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/06/2023] [Indexed: 09/21/2023]
Abstract
Silencing the transthyretin (TTR) gene is an effective strategy in the treatment of hereditary transthyretin-mediated (hATTR) amyloidosis. Vutrisiran (Amvuttra®), an RNA interference (RNAi) therapeutic targeting TTR mRNA, is approved in the USA and EU for the treatment of adults with polyneuropathy of hATTR amyloidosis. N-acetylgalactosamine conjugation and enhanced stabilisation chemistry are utilised to target vutrisiran to the liver and increase stability, respectively, allowing for subcutaneous administration once every 3 months. In a pivotal phase 3 study in patients with hATTR amyloidosis with polyneuropathy, subcutaneous vutrisiran 25 mg every 3 months significantly reduced neuropathy impairment versus external placebo. Vutrisiran was also associated with significant improvements in neuropathy-specific quality of life, gait speed, nutritional status and disability scores. Vutrisiran was generally well tolerated; the only common adverse events to occur at a greater incidence than with external placebo were pain in extremity and arthralgia. Vutrisiran reduces serum vitamin A levels and vitamin A supplementation is recommended. In conclusion, vutrisiran is an efficacious and generally well-tolerated alternative option for the treatment of polyneuropathy of hATTR amyloidosis, which has the potential advantage of infrequent subcutaneous dosage.
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Affiliation(s)
- Tina Nie
- Springer Nature, Private Bag 65901, Mairangi Bay, Auckland, 0754, New Zealand.
| | - Young-A Heo
- Springer Nature, Private Bag 65901, Mairangi Bay, Auckland, 0754, New Zealand
| | - Matt Shirley
- Springer Nature, Private Bag 65901, Mairangi Bay, Auckland, 0754, New Zealand
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17
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Obici L, Callaghan R, Ablett J, Bibiloni C, Bueser T, Conceição I, Dongiglio F, Farrugia A, Knebel F, Lane T, Larsson LO, Morier A, Nicholas V, Coelho T. Consensus recommendations on holistic care in hereditary ATTR amyloidosis: an international Delphi survey of patient advocates and multidisciplinary healthcare professionals. BMJ Open 2023; 13:e073130. [PMID: 37669844 PMCID: PMC10481833 DOI: 10.1136/bmjopen-2023-073130] [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] [Received: 02/28/2023] [Accepted: 07/28/2023] [Indexed: 09/07/2023] Open
Abstract
BACKGROUND Hereditary transthyretin-mediated amyloidosis is a rare, progressive and potentially life-limiting multisystem disease, affecting every aspect of a patient's life. OBJECTIVES This online international Delphi survey aimed to evolve clinical-patient-led practical guidance, to inspire and encourage a holistic approach to care that is managed in specialist settings by multidisciplinary teams and supported by allied healthcare professionals (HCPs) and patient advocacy groups (PAGs). DESIGN A 14-member joint patient advocate-HCP primary panel was convened including representation from PAGs and key clinical specialties (neurology, cardiology, internal medicine, physiotherapy, clinical psychology, dietetics and specialist nursing). Guidance evolved on the care provision needed to support seven core goals: early diagnosis and treatment; disease monitoring and organisation of care; maintenance of physical and mental health; family-centred care and caregiver support; patient-doctor dialogue; access to social support and social networking. PARTICIPANTS From June to October 2022, 252 HCPs and 51 PAG representatives from 27 countries were invited to participate in a Delphi survey. Of the 122 respondents who answered at least one survey question, most were HCPs (100, 82%) from specialist centres; the remainder were PAG representatives (22, 18%). MAIN OUTCOME MEASURE Both level of agreement and feasibility in practice of each recommendation was tested by two anonymised online Delphi voting rounds. RESULTS Based on an a priori threshold for consensus of ≥75% agreement, the clinical-patient community endorsed all but one recommendation. However, only 17/49 (35%) recommendations were identified by most HCPs as a core part of routine care; the remainder (32/49 (65%)) were identified as part of core care by <50% of HCPs respondents, or as largely achievable by 30%-45% of HCPs. By comparison, PAGs recorded lower implementation levels. CONCLUSIONS Further consideration is needed on how to evolve multidisciplinary services (supported by allied HCPs and PAGs) to address the complex needs of those affected by this disease.
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Affiliation(s)
- Laura Obici
- Amyloidosis Research and Treatment Center, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | | | | | - Catilena Bibiloni
- Asociación Balear de la Enfermedad de Andrade, Palma de Mallorca, Spain
- Amyloïdosis Alliance, Marseille, France
| | - Teofila Bueser
- Southeast Genomic Medicine Service Alliance, Guy's & St Thomas' Hospital NHS Foundation Trust, London, UK
| | - Isabel Conceição
- Department of Neurosciences and Mental Health, Centro Hospitalar Universitário Lisboa Norte-HSM; Lisbon University - FML, Lisbon, Portugal
| | - Francesca Dongiglio
- Inherited and Rare Cardiovascular Disease Unit, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Agnès Farrugia
- Amyloïdosis Alliance, Marseille, France
- Association Française Contre l'Amylose, Marseille, France
| | - Fabian Knebel
- Clinic for Internal Medicine II: Cardiology, Sana Klinikum Lichtenberg, Berlin, Germany
- Amyloidosis Center Charité Berlin, Berlin, Germany
| | - Thirusha Lane
- Patient Advocacy and Engagement, Alnylam Pharmaceuticals, Maidenhead, UK
| | | | | | | | - Teresa Coelho
- Familial Amyloidosis Clinic Unit, Hospital Santo António, Centro Hospitalar Universitário do Porto, Porto, Portugal
- European Reference Network - Euro-NMD, Paris, France
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Socie P, Benmalek A, Cauquil C, Piekarski E, Kounis I, Eliahou L, Rousseau A, Rouzet F, Echaniz-Laguna A, Samuel D, Adams D, Slama MS, Algalarrondo V. Comparison between tafamidis and liver transplantation as first-line therapy for hereditary transthyretin amyloidosis. Amyloid 2023; 30:303-312. [PMID: 36795029 DOI: 10.1080/13506129.2023.2177986] [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: 08/16/2022] [Revised: 01/03/2023] [Accepted: 02/03/2023] [Indexed: 02/17/2023]
Abstract
BACKGROUND By stabilizing transthyretin, tafamidis delays progression of amyloidosis due to transthyretin variant (ATTRv) and replaced liver transplantation (LT) as the first-line therapy. No study compared these two therapeutic strategies. METHODS In a monocentric retrospective cohort analysis, patients with ATTRv amyloidosis treated with either tafamidis or LT were compared using a propensity score and a competing risk analysis for three endpoints: all-cause mortality, cardiac worsening (heart failure or cardiovascular death) and neurological worsening (worsening in PolyNeuropathy Disability score). RESULTS 345 patients treated with tafamidis (n = 129) or LT (n = 216) were analyzed, and 144 patients were matched (72 patients in each group, median age 54 years, 60% carrying the V30M mutation, 81% of stage I, 69% with cardiac involvement, median follow-up: 68 months). Patients treated with tafamidis had longer survival than LT patients (HR: 0.35; p = .032). Conversely, they also presented a 3.0-fold higher risk of cardiac worsening and a 7.1-fold higher risk of neurological worsening (p = .0071 and p < .0001 respectively). CONCLUSIONS ATTRv amyloidosis patients treated with tafamidis would present a better survival but also a faster deterioration of their cardiac and neurological statuses as compared with LT. Further studies are needed to clarify the therapeutic strategy in ATTRv amyloidosis.
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Affiliation(s)
- Pierre Socie
- Centre de Compétence des Amyloses Cardiaques, Service de Cardiologie, Hôpital Bichat Claude Bernard, AP-HP, Paris, France
| | - Anouar Benmalek
- Université Paris-Sud, Faculté de Pharmacie, Université Paris-Saclay, Chatenay Malabry, France
| | - Cécile Cauquil
- Service de Neurologie, Hôpital Bicêtre, AP-HP, Le Kremlin-Bicêtre, France and French Referral Center for Familial Amyloid Polyneuropathy and Other Rare Peripheral Neuropathies (NNERF), Bicêtre, France
| | - Eve Piekarski
- Service de Médecine Nucléaire, Hôpital Bichat Claude Bernard, AP-HP, Paris, France
- Université de Paris-Cité, Faculté de médecine, Paris, France
| | - Ilias Kounis
- Centre Hépatobiliaire, Hôpital Paul Brousse, AP-HP, Villejuif, France
- Service d'Ophtalmologie, Hôpital Bicêtre, AP-HP, Le Kremlin-Bicêtre, France
| | - Ludivine Eliahou
- Centre de Compétence des Amyloses Cardiaques, Service de Cardiologie, Hôpital Bichat Claude Bernard, AP-HP, Paris, France
| | - Antoine Rousseau
- Service d'Ophtalmologie, Hôpital Bicêtre, AP-HP, Le Kremlin-Bicêtre, France
- Université Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - François Rouzet
- Service de Médecine Nucléaire, Hôpital Bichat Claude Bernard, AP-HP, Paris, France
- Université de Paris-Cité, Faculté de médecine, Paris, France
| | - Andoni Echaniz-Laguna
- Service de Neurologie, Hôpital Bicêtre, AP-HP, Le Kremlin-Bicêtre, France and French Referral Center for Familial Amyloid Polyneuropathy and Other Rare Peripheral Neuropathies (NNERF), Bicêtre, France
- Service d'Ophtalmologie, Hôpital Bicêtre, AP-HP, Le Kremlin-Bicêtre, France
- INSERM, UMR 1195, Le Kremlin Bicêtre, France
| | - Didier Samuel
- Centre Hépatobiliaire, Hôpital Paul Brousse, AP-HP, Villejuif, France
- Service d'Ophtalmologie, Hôpital Bicêtre, AP-HP, Le Kremlin-Bicêtre, France
| | - David Adams
- Service de Neurologie, Hôpital Bicêtre, AP-HP, Le Kremlin-Bicêtre, France and French Referral Center for Familial Amyloid Polyneuropathy and Other Rare Peripheral Neuropathies (NNERF), Bicêtre, France
- Service d'Ophtalmologie, Hôpital Bicêtre, AP-HP, Le Kremlin-Bicêtre, France
- INSERM, UMR 1195, Le Kremlin Bicêtre, France
| | - Michel S Slama
- Centre de Compétence des Amyloses Cardiaques, Service de Cardiologie, Hôpital Bichat Claude Bernard, AP-HP, Paris, France
- Service d'Ophtalmologie, Hôpital Bicêtre, AP-HP, Le Kremlin-Bicêtre, France
| | - Vincent Algalarrondo
- Centre de Compétence des Amyloses Cardiaques, Service de Cardiologie, Hôpital Bichat Claude Bernard, AP-HP, Paris, France
- Université de Paris-Cité, Faculté de médecine, Paris, France
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Gasparella P, Senica SO, Singer G, Banfi C, Flucher C, Beqo BP, Till H, Haxhija EQ. Pediatric vascular anomalies in Austria. Where are we at? A survey among primary care pediatricians. Front Pediatr 2023; 11:1216460. [PMID: 37664549 PMCID: PMC10473968 DOI: 10.3389/fped.2023.1216460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 08/04/2023] [Indexed: 09/05/2023] Open
Abstract
Introduction Vascular anomalies (VAs) are rare conditions and affected patients often experience a difficult patient journey. Timely diagnosis is only possible if primary caregivers are aware of the anomalies and are connected with dedicated specialists. Aim of our survey was to investigate the knowledge about diagnostic and therapeutic possibilities for children with VAs, and the existing networking among primary pediatric caregivers in Austria. Methods Primary care pediatricians in Austria were invited to complete an online questionnaire consisting of 28 questions focusing on pediatric VAs. Results Out of 373 invited pediatricians 93 (25%) returned the questionnaires, 86 of which were complete. Most physicians (39/93 42%) answered that they see between 15 and 30 patients with infantile hemangiomas per year. Vascular malformations are rarely treated in the primary care setting; most primary care pediatricians (58/86, 67%) reported that they currently treat fewer than 5 patients with such type of VAs. There was unequivocal agreement among the participants (84/86, 98%) on the need to establish a network of specialists and a registry dedicated to pediatric VAs. Conclusions This survey represents the first study shedding light on the awareness of VAs among Austrian pediatricians and can serve as a basis for future investigations and advances in the management of these conditions in Austria and other countries with a similar healthcare setting.
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Affiliation(s)
- Paolo Gasparella
- Department of Pediatric and Adolescent Surgery, VASCERN VASCA European Reference Centre, Medical University of Graz, Graz, Austria
| | - Simone O. Senica
- Department of Pediatric and Adolescent Surgery, VASCERN VASCA European Reference Centre, Medical University of Graz, Graz, Austria
- Faculty of Medicine, Riga Stradins University, Riga, Latvia
| | - Georg Singer
- Department of Pediatric and Adolescent Surgery, VASCERN VASCA European Reference Centre, Medical University of Graz, Graz, Austria
| | - Chiara Banfi
- Institute for Medical Informatics, Statistics and Documentation, Medical University of Graz, Graz, Austria
| | - Christina Flucher
- Department of Pediatric and Adolescent Surgery, VASCERN VASCA European Reference Centre, Medical University of Graz, Graz, Austria
| | - Besiana P. Beqo
- Department of Pediatric and Adolescent Surgery, VASCERN VASCA European Reference Centre, Medical University of Graz, Graz, Austria
- Boston Children’s Hospital and Harvard Medical School, Boston, MA, United States
| | - Holger Till
- Department of Pediatric and Adolescent Surgery, VASCERN VASCA European Reference Centre, Medical University of Graz, Graz, Austria
| | - Emir Q. Haxhija
- Department of Pediatric and Adolescent Surgery, VASCERN VASCA European Reference Centre, Medical University of Graz, Graz, Austria
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20
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Thimm A, Carpinteiro A, Oubari S, Papathanasiou M, Kessler L, Rischpler C, Malik RA, Herrmann K, Reinhardt HC, Rassaf T, Kleinschnitz C, Hagenacker T, Stettner M. Corneal confocal microscopy identifies corneal nerve loss and increased Langerhans cells in presymptomatic carriers and patients with hereditary transthyretin amyloidosis. J Neurol 2023:10.1007/s00415-023-11689-z. [PMID: 37014422 DOI: 10.1007/s00415-023-11689-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 03/21/2023] [Accepted: 03/25/2023] [Indexed: 04/05/2023]
Abstract
BACKGROUND Hereditary transthyretin amyloidosis (ATTRv amyloidosis) is a rare, but life-threatening protein misfolding disorder due to TTR gene mutations. Cardiomyopathy (ATTRv-CM) and polyneuropathy (ATTRv-PN) with early small nerve fibre involvement are the most common manifestations. Timely diagnosis and treatment initiation are key to limiting progression of disease. Corneal confocal microscopy (CCM) is a non-invasive method to quantify corneal small nerve fibres and immune cell infiltrates in vivo. METHODS This cross-sectional study investigated the utility of CCM in 20 patients with ATTRv amyloidosis (ATTRv-CM, n = 6; ATTRv-PN, n = 14) and presymptomatic carriers (n = 5) compared to 20 age- and sex-matched healthy controls. Corneal nerve fibre density, corneal nerve fibre length, corneal nerve branch density, and cell infiltrates were assessed. RESULTS Corneal nerve fibre density and nerve fibre length were significantly lower in patients with ATTRv amyloidosis compared to healthy controls regardless of the clinical phenotype (ATTRv-CM, ATTRv-PN) and corneal nerve fibre density was significantly lower in presymptomatic carriers. Immune cell infiltrates were only evident in patients with ATTRv amyloidosis, which correlated with reduced corneal nerve fibre density. CONCLUSIONS CCM identifies small nerve fibre damage in presymptomatic carriers and symptomatic patients with ATTRv amyloidosis and may serve as a predictive surrogate marker to identify individuals at risk of developing symptomatic amyloidosis. Furthermore, increased corneal cell infiltration suggests an immune-mediated mechanism in the pathogenesis of amyloid neuropathy.
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Affiliation(s)
- Andreas Thimm
- Department of Neurology, University Hospital Essen, Hufelandstrasse 55, 45147, Essen, Germany.
- Center for Translational Neuro- and Behavioral Scienes (C-TNBS), University Hospital Essen, Essen, Germany.
| | - Alexander Carpinteiro
- Department of Hematology and Stem Cell Transplantation, West German Cancer Center, University Hospital Essen, Essen, Germany
- Institute of Molecular Biology, University of Duisburg-Essen, Essen, Germany
| | - Sara Oubari
- Department of Hematology and Stem Cell Transplantation, West German Cancer Center, University Hospital Essen, Essen, Germany
| | - Maria Papathanasiou
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center, University Hospital Essen, Essen, Germany
| | - Lukas Kessler
- Department of Nuclear Medicine, University Hospital Essen, Essen, Germany
| | | | - Rayaz Ahmed Malik
- Institute of Cardiovascular Science, Faculty of Medical and Human Sciences, University of Manchester, Manchester, UK
- Weill Cornell Medicine-Qatar, Education City, Doha, Qatar
| | - Ken Herrmann
- Department of Nuclear Medicine, University Hospital Essen, Essen, Germany
| | - Hans Christian Reinhardt
- Department of Hematology and Stem Cell Transplantation, West German Cancer Center, University Hospital Essen, Essen, Germany
| | - Tienush Rassaf
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center, University Hospital Essen, Essen, Germany
| | - Christoph Kleinschnitz
- Department of Neurology, University Hospital Essen, Hufelandstrasse 55, 45147, Essen, Germany
- Center for Translational Neuro- and Behavioral Scienes (C-TNBS), University Hospital Essen, Essen, Germany
| | - Tim Hagenacker
- Department of Neurology, University Hospital Essen, Hufelandstrasse 55, 45147, Essen, Germany
- Center for Translational Neuro- and Behavioral Scienes (C-TNBS), University Hospital Essen, Essen, Germany
| | - Mark Stettner
- Department of Neurology, University Hospital Essen, Hufelandstrasse 55, 45147, Essen, Germany
- Center for Translational Neuro- and Behavioral Scienes (C-TNBS), University Hospital Essen, Essen, Germany
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21
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Pinto MV, França MC, Gonçalves MVM, Machado-Costa MC, Freitas MRGD, Gondim FDAA, Marrone CD, Martinez ARM, Moreira CL, Nascimento OJM, Covaleski APP, Oliveira ASBD, Pupe CCB, Rodrigues MMJ, Rotta FT, Scola RH, Marques W, Waddington-Cruz M. Brazilian consensus for diagnosis, management and treatment of hereditary transthyretin amyloidosis with peripheral neuropathy: second edition. ARQUIVOS DE NEURO-PSIQUIATRIA 2023; 81:308-321. [PMID: 37059440 PMCID: PMC10104762 DOI: 10.1055/s-0043-1764412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Abstract
Hereditary transthyretin amyloidosis with peripheral neuropathy (ATTRv-PN) is an autosomal dominant inherited sensorimotor and autonomic polyneuropathy with over 130 pathogenic variants identified in the TTR gene. Hereditary transthyretin amyloidosis with peripheral neuropathy is a disabling, progressive and life-threatening genetic condition that leads to death in ∼ 10 years if untreated. The prospects for ATTRv-PN have changed in the last decades, as it has become a treatable neuropathy. In addition to liver transplantation, initiated in 1990, there are now at least 3 drugs approved in many countries, including Brazil, and many more are being developed. The first Brazilian consensus on ATTRv-PN was held in the city of Fortaleza, Brazil, in June 2017. Given the new advances in the area over the last 5 years, the Peripheral Neuropathy Scientific Department of the Brazilian Academy of Neurology organized a second edition of the consensus. Each panelist was responsible for reviewing the literature and updating a section of the previous paper. Thereafter, the 18 panelists got together virtually after careful review of the draft, discussed each section of the text, and reached a consensus for the final version of the manuscript.
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Affiliation(s)
- Marcus Vinicius Pinto
- Universidade Federal do Rio de Janeiro, Hospital Universitário Clementino Fraga Filho, Centro de Estudos em Paramiloidose Antônio Rodrigues de Mello, Rio de Janeiro RJ, Brazil
- Mayo Clinic, Department of Neurology, Rochester, Minnesota, United States
| | | | | | | | - Marcos Raimundo Gomes de Freitas
- Universidade Federal do Rio de Janeiro, Hospital Universitário Clementino Fraga Filho, Centro de Estudos em Paramiloidose Antônio Rodrigues de Mello, Rio de Janeiro RJ, Brazil
| | | | - Carlo Domenico Marrone
- Pontifícia Universidade Católica do Rio Grande do Sul, Hospital São Lucas, Clínica Marrone e Ambulatório de Doenças Neuromusculare, Porto Alegre RS, Brazil
| | | | | | | | | | | | | | | | - Francisco Tellechea Rotta
- Hospital Moinhos de Vento, Porto Alegre RS, Brazil
- Santa Casa de Misericórdia de Porto Alegre, Porto Alegre RS, Brazil
| | | | - Wilson Marques
- Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Ribeirão Preto SP, Brazil
| | - Márcia Waddington-Cruz
- Universidade Federal do Rio de Janeiro, Hospital Universitário Clementino Fraga Filho, Centro de Estudos em Paramiloidose Antônio Rodrigues de Mello, Rio de Janeiro RJ, Brazil
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22
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Adams D, Tournev IL, Taylor MS, Coelho T, Planté-Bordeneuve V, Berk JL, González-Duarte A, Gillmore JD, Low SC, Sekijima Y, Obici L, Chen C, Badri P, Arum SM, Vest J, Polydefkis M. Efficacy and safety of vutrisiran for patients with hereditary transthyretin-mediated amyloidosis with polyneuropathy: a randomized clinical trial. Amyloid 2023; 30:1-9. [PMID: 35875890 DOI: 10.1080/13506129.2022.2091985] [Citation(s) in RCA: 89] [Impact Index Per Article: 89.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
BACKGROUND The study objective was to assess the effect of vutrisiran, an RNA interference therapeutic that reduces transthyretin (TTR) production, in patients with hereditary transthyretin (ATTRv) amyloidosis with polyneuropathy. METHODS HELIOS-A was a phase 3, global, open-label study comparing the efficacy and safety of vutrisiran with an external placebo group (APOLLO study). Patients were randomized 3:1 to subcutaneous vutrisiran 25 mg every 3 months (Q3M) or intravenous patisiran 0.3 mg/kg every 3 weeks (Q3W) for 18 months. RESULTS HELIOS-A enrolled 164 patients (vutrisiran, n = 122; patisiran reference group, n = 42); external placebo, n = 77. Vutrisiran met the primary endpoint of change from baseline in modified Neuropathy Impairment Score +7 (mNIS+7) at 9 months (p = 3.54 × 10-12), and all secondary efficacy endpoints; significant improvements versus external placebo were observed in Norfolk Quality of Life-Diabetic Neuropathy, 10-meter walk test (both at 9 and 18 months), mNIS+7, modified body-mass index, and Rasch-built Overall Disability Scale (all at 18 months). TTR reduction with vutrisiran Q3M was non-inferior to within-study patisiran Q3W. Most adverse events were mild or moderate in severity, and consistent with ATTRv amyloidosis natural history. There were no drug-related discontinuations or deaths. CONCLUSIONS Vutrisiran significantly improved multiple disease-relevant outcomes for ATTRv amyloidosis versus external placebo, with an acceptable safety profile. CLINICALTRIALS.GOV NCT03759379.
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Affiliation(s)
- David Adams
- Neurology Department, CHU Bicêtre, APHP, Université Paris-Saclay, Le Kremlin Bicêtre Cedex, France
| | - Ivailo L Tournev
- Department of Neurology, Clinic of Nervous Diseases, University Hospital Aleksandrovska, Medical University, Sofia, Bulgaria.,Department of Cognitive Sciences, New Bulgarian University, Sofia, Bulgaria
| | - Mark S Taylor
- Department of Clinical Immunology and Allergy, Westmead Hospital and Westmead Clinical School, University of Sydney, Sydney, NSW, Australia
| | - Teresa Coelho
- Hospital de Santo António, Centro Hospitalar Universitário do Porto, Porto, Portugal
| | | | - John L Berk
- Boston Medical Center, Boston University, Boston, Massachusetts, USA
| | | | - Julian D Gillmore
- National Amyloidosis Centre, University College London, Royal Free Hospital, London, UK
| | - Soon-Chai Low
- Department of Medicine, Division of Neurology, University Malaya Medical Centre, Kuala Lumpur, Malaysia
| | - Yoshiki Sekijima
- Department of Medicine (Neurology & Rheumatology), Shinshu University School of Medicine, Matsumoto, Japan
| | - Laura Obici
- Amyloidosis Research and Treatment Centre, IRCCS Fondazione Policlinico San Matteo, Pavia, Italy
| | - Chongshu Chen
- Alnylam Pharmaceuticals, Cambridge, Massachusetts, USA
| | | | - Seth M Arum
- Alnylam Pharmaceuticals, Cambridge, Massachusetts, USA
| | - John Vest
- Alnylam Pharmaceuticals, Cambridge, Massachusetts, USA
| | - Michael Polydefkis
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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23
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Falcão de Campos C, Conceição I. Updated Evaluation of the Safety, Efficacy and Tolerability of Tafamidis in the Treatment of Hereditary Transthyretin Amyloid Polyneuropathy. Drug Healthc Patient Saf 2023; 15:51-62. [PMID: 36824481 PMCID: PMC9942506 DOI: 10.2147/dhps.s338577] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 01/26/2023] [Indexed: 02/19/2023] Open
Abstract
Hereditary amyloid transthyretin (ATTRv) amyloidosis is a devastating hereditary multisystemic disease affecting predominantly the peripheral and autonomic nervous systems and the heart. ATTRv is caused by mutations in the transthyretin (TTR) gene, leading to extracellular deposition of amyloid fibrils in multiple organs including the peripheral nervous system. If untreated, it is associated with a fatal outcome 10-12 years after disease onset. Different treatments are available for patients with ATTRv polyneuropathy. Tafamidis 20 mg is approved in Europe since 2011 for early stages of ATTRv polyneuropathy (stage I - able to walk without support) and it is recommended as first-line therapy in these patients. Tafamidis is a TTR stabilizer that selectively binds to TTR and kinetically stabilizes both wild-type native TTR and mutant TTR. Consequently, it has the potential to prevent the amyloidogenic cascade initiated by TTR tetramer dissociation into its monomers and subsequent misfolding and aggregation. Tafamidis is an oral drug, taken once per day, with proved efficacy, safety and tolerability in ATTRv-PN patients as demonstrated in different clinical trials and open-label extension studies as well in clinical practice setting with around 10 years of experience. Tafamidis treatment started in the earliest stages of the disease is associated with better neurological outcomes. A multidisciplinary approach in referral centres is also fundamental for monitoring patients to assess individual response to treatment.
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Affiliation(s)
- Catarina Falcão de Campos
- Department of Neurosciences and Mental Health, Centro Hospitalar Universitário de Lisboa-Norte, Lisbon, Portugal,Instituto de Fisiologia, Instituto de Medicina Molecular, Centro de Estudos Egas Moniz, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal,Correspondence: Catarina Falcão de Campos, Department of Neurosciences, Hospital de Santa Maria, Av. Professor Egas Moniz, Lisbon, 1648-028, Portugal, Tel/Fax + 351 21 780521, Email
| | - Isabel Conceição
- Department of Neurosciences and Mental Health, Centro Hospitalar Universitário de Lisboa-Norte, Lisbon, Portugal,Instituto de Fisiologia, Instituto de Medicina Molecular, Centro de Estudos Egas Moniz, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
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24
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Dori A, Arad M, Wasserstrum Y, Pollak A, Nikitin V, Ben-David M, Shamash J, Nahum AH, Shavit-Stein E, Domachevsky L, Kuperstein R, Dominissini D, Shelestovich N, Sadeh M, Pras E, Greenbaum L. Ser77Tyr transthyretin amyloidosis in Israel: Initial manifestations and diagnostic features. Ann Clin Transl Neurol 2023; 10:553-567. [PMID: 36772971 PMCID: PMC10109316 DOI: 10.1002/acn3.51741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 01/19/2023] [Accepted: 01/20/2023] [Indexed: 02/12/2023] Open
Abstract
OBJECTIVE Amyloidosis due to the transthyretin Ser77Tyr mutation (ATTRS77Y) is a rare autosomal-dominant disorder, characterized by carpal-tunnel syndrome, poly- and autonomic-neuropathy, and cardiomyopathy. However, related symptoms and signs are often nonspecific and confirmatory tests are required. We describe the age and frequency of early symptoms and diagnostic features among individuals of Jewish Yemenite descent in Israel. METHODS Records of mutation carriers were retrospectively reviewed. ATTRS77Y diagnosis was defined by the presence of amyloid in tissue and/or amyloid-related cardiomyopathy. RESULTS We identified the Ser77Tyr mutation at the heterozygous state in 19 amyloidosis patients (mean age at diagnosis: 62 ± 5.7 years, range 49-70) and 30 amyloid-negative carriers. The probability for disease diagnosis increased from 4.4% at age 49 to 100% at 70 and occurred earlier in males. Initial symptoms preceded diagnosis by 5 ± 3.8 years (range 0-12) and were commonly sensory changes in the extremities. Erectile dysfunction predated these in 8/13 (62%) males. In two patients cardiac preceded neurological symptoms. Two patients declined symptoms. Electrophysiological studies near the time of diagnosis indicated a median neuropathy at the wrist in 18/19 (95%) and polyneuropathy in 13/19 (68%). Skin biopsy revealed epidermal denervation in 15/16 (94%) patients. Cardiomyopathy was identified in 16/19 (84%). Sensory complaints or epidermal denervations were present in 17/30 (57%) of amyloid-negative carriers and co-occurred in 10/30 (33%). INTERPRETATION ATTRS77Y symptoms commonly occur after age 50, but may begin earlier. Median neuropathy, skin denervation and cardiomyopathy are frequently identified. Symptoms may be absent in patients and common in amyloid-negative carriers.
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Affiliation(s)
- Amir Dori
- Department of Neurology, Sheba Medical Center, Tel Hashomer, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Michael Arad
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,The Leviev Heart Center, Sheba Medical Center, Tel Hashomer, Israel
| | - Yishay Wasserstrum
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,The Leviev Heart Center, Sheba Medical Center, Tel Hashomer, Israel
| | - Arthur Pollak
- Department of Cardiology, Hadassah Medical Center, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Vera Nikitin
- Department of Neurology, Sheba Medical Center, Tel Hashomer, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Merav Ben-David
- Department of Neurology, Sheba Medical Center, Tel Hashomer, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Jana Shamash
- The Danek Gertner Institute of Human Genetics, Sheba Medical Center, Tel Hashomer, Israel
| | - Ayelet Hashachar Nahum
- The Danek Gertner Institute of Human Genetics, Sheba Medical Center, Tel Hashomer, Israel
| | - Efrat Shavit-Stein
- Department of Neurology, Sheba Medical Center, Tel Hashomer, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Liran Domachevsky
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Department of Nuclear Medicine, Sheba Medical Center, Tel Hashomer, Israel
| | - Rafael Kuperstein
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,The Leviev Heart Center, Sheba Medical Center, Tel Hashomer, Israel
| | - Dan Dominissini
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,The genomics Unit, Sheba Cancer Research Center, Sheba Medical Center, Tel Hashomer, Israel.,Wohl Institute of Translational Medicine, Sheba Medical Center, Tel Hashomer, Israel
| | - Natalia Shelestovich
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Department of Pathology, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
| | - Menachem Sadeh
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Department of Neurology, Wolfson Medical Center, Holon, Israel
| | - Elon Pras
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,The Danek Gertner Institute of Human Genetics, Sheba Medical Center, Tel Hashomer, Israel
| | - Lior Greenbaum
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,The Danek Gertner Institute of Human Genetics, Sheba Medical Center, Tel Hashomer, Israel.,The Joseph Sagol Neuroscience Center, Sheba Medical Center, Tel Hashomer, Israel
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Punnoose LR, Siddiqi H, Rosenthal J, Kittleson M, Witteles R, Alexander K. Implications of Extra-cardiac Disease in Patient Selection for Heart Transplantation: Considerations in Cardiac Amyloidosis. Card Fail Rev 2023; 9:e01. [PMID: 36891177 PMCID: PMC9987512 DOI: 10.15420/cfr.2022.24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 10/26/2022] [Indexed: 02/01/2023] Open
Abstract
Disease-modifying therapies in both light chain and transthyretin amyloidosis have improved patient functional status and survival. Conceivably, as heart failure may progress despite amyloid therapies, more patients may be considered for heart transplantation. In earlier eras, extra-cardiac amyloid deposits significantly reduced post-heart transplant patient survival and functional status compared to the non-amyloid population. In the modern era, transplant centres have reported improved outcomes in amyloidosis as patient selection has grown more stringent. Importantly, systematic candidate evaluation should assess the degree of extra-cardiac involvement, the effectiveness of disease-modifying therapies and downstream effects on patients' nutrition and frailty. This review outlines such an overall approach while also considering that organ-specific selection criteria may vary between individual transplant centres. A methodical approach to patient evaluation will promote better understanding of the prevalence and severity of extra-cardiac disease in amyloidosis patients referred for heart transplantation and of any disparities in decision outcomes in this population.
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Affiliation(s)
- Lynn Raju Punnoose
- Division of Cardiovascular Medicine, Vanderbilt University School of Medicine Nashville, TN, US
| | - Hasan Siddiqi
- Division of Cardiovascular Medicine, Vanderbilt University School of Medicine Nashville, TN, US
| | - Julie Rosenthal
- Department of Cardiovascular Medicine, Mayo Clinic Phoenix, AZ, US
| | - Michelle Kittleson
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center Los Angeles, CA, US
| | - Ronald Witteles
- Division of Cardiovascular Medicine, Stanford University School of Medicine Palo Alto, CA, US
| | - Kevin Alexander
- Division of Cardiovascular Medicine, Stanford University School of Medicine Palo Alto, CA, US
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Yongsheng Z, Chong S, Bingyou L, Jianian H, Haofeng C, Chongbo Z, Zhang VW, Jie L. Prevalence estimation of ATTRv in China based on genetic databases. Front Genet 2023; 14:1126836. [PMID: 37124609 PMCID: PMC10133693 DOI: 10.3389/fgene.2023.1126836] [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] [Received: 12/18/2022] [Accepted: 04/04/2023] [Indexed: 05/02/2023] Open
Abstract
Introduction: Amyloid transthyretin (ATTR) is divided into either hereditary (ATTRv) or sporadic (ATTRwt) and ATTRv is a rare hereditary disease transmitted as an autosomal dominant manner. Its global prevalence is traditionally estimated as 5,000 to 10,000 persons. However, it may be underestimated and the exact prevalence of ATTRv in China mainland remains unknown. Methods: The Genome Aggregation database (gnomAD) database (containing 125,748 exomes) and two genomic sequencing databases--China Metabolic Analytics Project (ChinaMAP) (containing 10588 individuals) and Amcarelab gene database (containing 45392 exomes), were integrated to estimate the prevalence of ATTRv in the world and mainland Chinese populations. Pathogenic variants allele frequency and the prevalence of ATTRv was calculated. Results: Six variants, counting 470 alleles, were defined as pathogenic variants in gnomAD. The prevalence of ATTRv in the world population was 57.4/100,000. Two variants (2 allele counts) and 15 variants (34 individuals) were defined as pathogenic variants in the ChinaMAP database and the Amcarelab exome database, respectively. Thus, the estimated prevalence interval of ATTRv in mainland China was 18.9/100,000-74,9/100,000. Conclusion: The present study demonstrated that the previous prevalence was greatly underestimated using traditional methods. Therefore, raising awareness of the disease is essential for recognizing ATTRv in its early stage.
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Affiliation(s)
- Zheng Yongsheng
- Department of Neurology, Huashan Hospital Fudan University, Shanghai, China
| | - Sun Chong
- Department of Neurology, Huashan Hospital Fudan University, Shanghai, China
| | - Liu Bingyou
- Department of Neurology, Huashan Hospital Fudan University, Shanghai, China
| | - Hu Jianian
- Department of Neurology, Huashan Hospital Fudan University, Shanghai, China
| | - Chen Haofeng
- Department of Neurology, Huashan Hospital Fudan University, Shanghai, China
| | - Zhao Chongbo
- Department of Neurology, Huashan Hospital Fudan University, Shanghai, China
| | | | - Lin Jie
- Department of Neurology, Huashan Hospital Fudan University, Shanghai, China
- *Correspondence: Lin Jie,
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Dardiotis E, Kyriakides T. Drug and Gene Therapy for Treating Variant Transthyretin Amyloidosis (ATTRv) Neuropathy. Curr Neuropharmacol 2023; 21:471-481. [PMID: 36366846 PMCID: PMC10207904 DOI: 10.2174/1570159x21666221108094736] [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: 04/30/2022] [Revised: 08/08/2022] [Accepted: 08/11/2022] [Indexed: 11/13/2022] Open
Abstract
Variant Transthyretin Amyloidosis (ATTRv) neuropathy is an adult-onset, autosomal dominant, lethal, multisystemic disease due to the deposition of mutated transthyretin (TTR) in various organs, commonly involving the peripheral nerves and the heart. Circulating TTR tetramers are unstable due to the presence of mutated TTR and dissociate into monomers, which misfold and form amyloid fibrils. Although there are more than 140 mutations in the TTR gene, the p.Val50Met mutation is by far the commonest. In the typical, early-onset cases, it presents with a small sensory fibre and autonomic, length-dependent, axonal neuropathy, while in late-onset cases, it presents with a lengthdependent sensorimotor axonal neuropathy involving all fibre sizes. Treatment is now available and includes TTR stabilizers, TTR amyloid removal as well as gene silencing, while gene editing therapies are on the way. Its timely diagnosis is of paramount importance for a better prognosis.
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Affiliation(s)
- Efthimios Dardiotis
- Laboratory of Neurogenetics, Department of Neurology, School of Health Sciences, Faculty of Medicine, University Hospital of Larissa, Larissa, Greece
| | - Theodoros Kyriakides
- Department of Basic and Clinical Sciences, University of Nicosia Medical School, Nicosia, Cyprus
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Taylor MS, Sidiqi H, Hare J, Kwok F, Choi B, Lee D, Baumwol J, Carroll AS, Vucic S, Neely P, Korczyk D, Thomas L, Mollee P, Stewart GJ, Gibbs SDJ. Current approaches to the diagnosis and management of amyloidosis. Intern Med J 2022; 52:2046-2067. [PMID: 36478370 DOI: 10.1111/imj.15974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 11/06/2022] [Indexed: 12/12/2022]
Abstract
Amyloidosis is a collection of diseases caused by the misfolding of proteins that aggregate into insoluble amyloid fibrils and deposit in tissues. While these fibrils may aggregate to form insignificant localised deposits, they can also accumulate in multiple organs to the extent that amyloidosis can be an immediately life-threatening disease, requiring urgent treatment. Recent advances in diagnostic techniques and therapies are dramatically changing the disease landscape and patient prognosis. Delays in diagnosis and treatment remain the greatest challenge, necessitating physician awareness of the common clinical presentations that suggest amyloidosis. The most common types are transthyretin (ATTR) amyloidosis followed by immunoglobulin light-chain (AL) amyloidosis. While systemic AL amyloidosis was previously considered a death sentence with no effective therapies, significant improvement in patient survival has occurred over the past 2 decades, driven by greater understanding of the disease process, risk-adapted adoption of myeloma therapies such as proteosome inhibitors (bortezomib) and monoclonal antibodies (daratumumab) and improved supportive care. ATTR amyloidosis is an underdiagnosed cause of heart failure. Technetium scintigraphy has made noninvasive diagnosis much easier, and ATTR is now recognised as the most common type of amyloidosis because of the increased identification of age-related ATTR. There are emerging ATTR treatments that slow disease progression, decrease patient hospitalisations and improve patient quality of life and survival. This review aims to update physicians on recent developments in amyloidosis diagnosis and management and to provide a diagnostic and treatment framework to improve the management of patients with all forms of amyloidosis.
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Affiliation(s)
- Mark S. Taylor
- Westmead Amyloidosis Service Westmead Hospital New South Wales Sydney Australia
- Department of Immunology Liverpool Hospital New South Wales Sydney Australia
- Department of Clinical Immunology Prince of Wales Hospital New South Wales Sydney Australia
- Prince of Wales Clinical School UNSW Sydney New South Wales Sydney Australia
| | - Hasib Sidiqi
- Fiona Stanley Amyloidosis Clinic Western Australia Perth Australia
| | - James Hare
- Cardiology Unit Alfred Health Victoria Melbourne Australia
- Victorian and Tasmanian Amyloidosis Service Victoria Melbourne Australia
| | - Fiona Kwok
- Westmead Amyloidosis Service Westmead Hospital New South Wales Sydney Australia
- Westmead Clinical School University of Sydney New South Wales Sydney Australia
| | - Bo Choi
- Cardiology Unit Alfred Health Victoria Melbourne Australia
- Victorian and Tasmanian Amyloidosis Service Victoria Melbourne Australia
| | - Darren Lee
- Victorian and Tasmanian Amyloidosis Service Victoria Melbourne Australia
- Department of Renal Medicine Eastern Health Victoria Melbourne Australia
- Eastern Health Clinical School Monash University Victoria Melbourne Australia
| | - Jay Baumwol
- Fiona Stanley Amyloidosis Clinic Western Australia Perth Australia
| | - Antonia S. Carroll
- Westmead Amyloidosis Service Westmead Hospital New South Wales Sydney Australia
- Westmead Clinical School University of Sydney New South Wales Sydney Australia
- Department of Neurology St Vincent's Hospital New South Wales Darlinghurst Australia
| | - Steve Vucic
- Department of Neurology Concord Repatriation General Hospital New South Wales Sydney Australia
| | - Pat Neely
- Princess Alexandra Hospital Amyloidosis Centre Queensland Brisbane Australia
| | - Dariusz Korczyk
- Princess Alexandra Hospital Amyloidosis Centre Queensland Brisbane Australia
| | - Liza Thomas
- Westmead Amyloidosis Service Westmead Hospital New South Wales Sydney Australia
- Westmead Clinical School University of Sydney New South Wales Sydney Australia
| | - Peter Mollee
- Princess Alexandra Hospital Amyloidosis Centre Queensland Brisbane Australia
- School of Medicine University of Queensland Queensland Brisbane Australia
| | - Graeme J. Stewart
- Westmead Clinical School University of Sydney New South Wales Sydney Australia
| | - Simon D. J. Gibbs
- Victorian and Tasmanian Amyloidosis Service Victoria Melbourne Australia
- Eastern Health Clinical School Monash University Victoria Melbourne Australia
- Haematology Unit Eastern Health Victoria Melbourne Australia
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Samuelsson K, Jovanovic A, Egervall K, Anan I, Wixner J, Press R. Hereditary transthyretin amyloidosis in Sweden: Comparisons between a non-endemic and an endemic region. Amyloid 2022; 29:220-227. [PMID: 35438016 DOI: 10.1080/13506129.2022.2065191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
INTRODUCTION Hereditary transthyretin amyloidosis (ATTRv) is endemic in northern Sweden (Västerbotten). The awareness of ATTRv amyloidosis is lower in Stockholm, a non-endemic region in Sweden. The aim of this study was to compare the possible differences in diagnostic delay, disease phenotypes, treatment and survival between a non-endemic and an endemic region in Sweden. METHODS The in- and outpatient diagnosis registry at the Department of Neurology at Karolinska University Hospital and the Amyloidosis Centre at University Hospital of Umeå were used to identify patients between January 2006 and November 2017. RESULTS In total, 21 patients in Stockholm and 134 patients in Västerbotten were included. The time between symptom onset to time-point of diagnosis was significantly longer in Stockholm vs Västerbotten. This corresponded to a longer median time between first visit at amyloidosis centre to time-point of diagnosis in Stockholm vs in Västerbotten. The most common reason for a diagnostic delay was negative tissue biopsies. CONCLUSION There was a diagnostic-, but no patient-delay in non-endemic Stockholm vs endemic Västerbotten. Despite a more severe neuropathic phenotype in Stockholm at the onset, the systemic affection over the course of disease and of survival seems not to be influenced by the diagnosis delay in Stockholm.
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Affiliation(s)
- Kristin Samuelsson
- Department of Neurology, Karolinska University Hospital, Stockholm, Sweden.,Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Ana Jovanovic
- Department of Neurology, Karolinska University Hospital, Stockholm, Sweden
| | - Karl Egervall
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Intissar Anan
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden.,Wallenberg Centre for Molecular Medicine, Umeå University, Umeå, Sweden
| | - Jonas Wixner
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Rayomand Press
- Department of Neurology, Karolinska University Hospital, Stockholm, Sweden.,Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
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Patel JK, Rosen AM, Chamberlin A, Feldmann B, Antolik C, Zimmermann H, Johnston T, Narayana A. Three Newly Recognized Likely Pathogenic Gene Variants Associated with Hereditary Transthyretin Amyloidosis. Neurol Ther 2022; 11:1595-1607. [PMID: 35933469 DOI: 10.1007/s40120-022-00385-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 06/24/2022] [Indexed: 10/16/2022] Open
Abstract
INTRODUCTION Hereditary transthyretin amyloidosis (ATTRv [variant]) is a clinically heterogeneous, progressively debilitating, fatal disease resulting from the deposition of insoluble amyloid fibrils in various organs and tissues. Early diagnosis of ATTRv can be facilitated with genetic testing; however, such testing of the TTR gene identifies variants of uncertain significance (VUS) in a minority of cases, a small percentage of which have the potential to be pathogenic. The Akcea/Ambry VUS Initiative is dedicated to gathering molecular, clinical, and inheritance data for each TTR VUS identified by genetic testing programs to reclassify TTR variants to a clinically actionable status (e.g., variant likely pathogenic [VLP]) where appropriate. METHODS Classification criteria used here, based on recommendations from the American College of Medical Genetics and Genomics, are stringent and comprehensive, requiring distinct lines of evidence supporting pathogenesis. RESULTS Three TTR variants have been reclassified from VUS to VLP, including c.194C>T (p.A65V), c.172G>C (p.D58H), and c.239C>T (p.T80I). In each case, the totality of genetic, structural, and clinical evidence provided strong support for pathogenicity. CONCLUSIONS Based on several lines of evidence, three TTR VUS were reclassified as VLP, resulting in a high likelihood of disease diagnosis for those and subsequent patients as well as at-risk family members.
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Affiliation(s)
- Jignesh K Patel
- Cardiac Amyloid Program, Smidt Cedars-Sinai Heart Institute, Los Angeles, CA, USA. .,Smidt Cedars-Sinai Heart Institute, 8670 Wilshire Blvd, 2nd Floor, Beverly Hills, CA, 90211, USA.
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31
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Luigetti M, Guglielmino V, Romozzi M, Romano A, Di Paolantonio A, Bisogni G, Sabatelli E, Modoni A, Sabatelli M, Servidei S, Lo Monaco M. Nerve Conduction Studies of Dorsal Sural Nerve: Normative Data and Its Potential Application in ATTRv Pre-Symptomatic Subjects. Brain Sci 2022; 12:brainsci12081037. [PMID: 36009100 PMCID: PMC9406159 DOI: 10.3390/brainsci12081037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 07/28/2022] [Accepted: 08/01/2022] [Indexed: 11/16/2022] Open
Abstract
The objective of the study is to provide age-related normative values for dorsal sural nerve (DSN) and to analyse its application during follow-up of hereditary transthyretin amyloidosis (ATTRv) pre-symptomatic subjects. We consecutively recruited ATTRv pre-symptomatic carriers in which clinical examination, cardiological evaluation, and nerve conduction studies of the sural nerve and DSN were performed. To provide normative data of DSN, neurophysiologic parameters from healthy controls referred to our service were entered into linear regression analyses to check the relative influence of age and height. A correction grid was then derived. We collected 231 healthy subjects: the mean DSN sensory nerve action potential (SNAP) amplitude was 9.99 ± 5.48 μV; the mean conduction velocity was 49.01 ± 5.31 m/s. Significant correlations were found between age and height with DSN SNAP amplitude. Fifteen ATTRv pre-symptomatic carriers were examined. Sural nerve NCS were normal in 12/15 and revealed low/borderline values in three subjects. Considering our correction grid, we found an abnormal DNS amplitude in 9/15 subjects and low/borderline values in 2/15. In ATTRv, early detection of peripheral nerve damage is crucial to start a disease-modifying treatment. DSN may be easily and reliably included in the routine neurophysiological follow-up of ATTRv pre-symptomatic subjects.
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Affiliation(s)
- Marco Luigetti
- Fondazione Policlinico Universitario A. Gemelli IRCCS, UOC Neurologia, 00168 Rome, Italy
- Dipartimento Di Neuroscienze, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
- Correspondence: ; Tel.: +39-06-30154435
| | - Valeria Guglielmino
- Dipartimento Di Neuroscienze, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Marina Romozzi
- Dipartimento Di Neuroscienze, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Angela Romano
- Fondazione Policlinico Universitario A. Gemelli IRCCS, UOC Neurologia, 00168 Rome, Italy
- Dipartimento Di Neuroscienze, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Andrea Di Paolantonio
- Dipartimento Di Neuroscienze, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Giulia Bisogni
- Centro Clinico NEMO, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Roma, Italy
| | - Eleonora Sabatelli
- Dipartimento Di Neuroscienze, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Anna Modoni
- Fondazione Policlinico Universitario A. Gemelli IRCCS, UOC Neurologia, 00168 Rome, Italy
- Dipartimento Di Neuroscienze, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Mario Sabatelli
- Dipartimento Di Neuroscienze, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
- Centro Clinico NEMO, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Roma, Italy
| | - Serenella Servidei
- Dipartimento Di Neuroscienze, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
- Fondazione Policlinico Universitario A. Gemelli IRCCS, UOC Neurofisiopatologia, 00168 Rome, Italy
| | - Mauro Lo Monaco
- MiA Onlus (“Miotonici in Associazione”), 80055 Portici, Italy
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Long-term efficacy and safety of inotersen for hereditary transthyretin amyloidosis: NEURO-TTR open-label extension 3-year update. J Neurol 2022; 269:6416-6427. [PMID: 35908242 PMCID: PMC9618524 DOI: 10.1007/s00415-022-11276-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 07/07/2022] [Accepted: 07/08/2022] [Indexed: 11/25/2022]
Abstract
Background Hereditary transthyretin amyloidosis (hATTR/ATTRv) results from the deposition of misfolded transthyretin (TTR) throughout the body, including peripheral nerves. Inotersen, an antisense oligonucleotide inhibitor of hepatic TTR production, demonstrated a favorable efficacy and safety profile in patients with the polyneuropathy associated with hATTR in the NEURO-TTR (NCT01737398) study. We report longer-term efficacy and safety data for inotersen, with a median treatment exposure of 3 years. Methods Patients who satisfactorily completed NEURO-TTR were enrolled in its open-label extension (OLE) study. Efficacy assessments included the modified Neuropathy Impairment Score + 7 (mNIS + 7), Norfolk Quality of Life–Diabetic Neuropathy (Norfolk QoL-DN) questionnaire total score, and the Short Form 36 (SF-36v2) Health Survey Physical Component Summary score. Safety and tolerability were also assessed. Efficacy is reported for patients living in Europe and North America (this cohort completed the study approximately 9 months before the remaining group of patients outside these regions); safety is reported for the full safety dataset, comprising patients living in Europe, North America, and Latin America/Australasia. This study is registered with ClinicalTrials.gov, identifier NCT02175004. Results In the Europe and North America cohort of the NEURO-TTR study, 113/141 patients (80.1%) completed the study, and 109 patients participated in the OLE study. A total of 70 patients continued to receive inotersen (inotersen–inotersen) and 39 switched from placebo to inotersen (placebo–inotersen). The placebo–inotersen group demonstrated sustained improvement in neurological disease progression as measured by mNIS + 7, compared with predicted worsening based on projection of the NEURO-TTR placebo data (estimated natural history). The inotersen–inotersen group demonstrated sustained benefit, as measured by mNIS + 7, Norfolk QoL-DN, and SF-36v2, compared with estimated natural history as well as compared with the placebo–inotersen group. With a maximum exposure of 6.2 years, inotersen was not associated with any additional safety concerns or increased toxicity in the OLE study. Platelet and renal monitoring were effective in reducing the risk of severe adverse events in the OLE study. Conclusion Inotersen treatment for > 3 years slowed progression of the polyneuropathy associated with hATTR, and no new safety signals were observed.
Supplementary Information The online version contains supplementary material available at 10.1007/s00415-022-11276-8.
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Vilas-Boas MDC, Fonseca PFP, Sousa IM, Cardoso MN, Cunha JPS, Coelho T. Gait Characterization and Analysis of Hereditary Amyloidosis Associated with Transthyretin Patients: A Case Series. J Clin Med 2022; 11:jcm11143967. [PMID: 35887731 PMCID: PMC9320786 DOI: 10.3390/jcm11143967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 06/30/2022] [Accepted: 07/02/2022] [Indexed: 02/04/2023] Open
Abstract
Hereditary amyloidosis associated with transthyretin (ATTRv), is a rare autosomal dominant disease characterized by length-dependent symmetric polyneuropathy that has gait impairment as one of its consequences. The gait pattern of V30M ATTRv amyloidosis patients has been described as similar to that of diabetic neuropathy, associated with steppage, but has never been quantitatively characterized. In this study we aim to characterize the gait pattern of patients with V30M ATTRv amyloidosis, thus providing information for a better understanding and potential for supporting diagnosis and disease progression evaluation. We present a case series in which we conducted two gait analyses, 18 months apart, of five V30M ATTRv amyloidosis patients using a 12-camera, marker based, optical system as well as six force platforms. Linear kinematics, ground reaction forces, and angular kinematics results are analyzed for all patients. All patients, except one, showed a delayed toe-off in the second assessment, as well as excessive pelvic rotation, hip extension and external transverse rotation and knee flexion (in stance and swing phases), along with reduced vertical and mediolateral ground reaction forces. The described gait anomalies are not clinically quantified; thus, gait analysis may contribute to the assessment of possible disease progression along with the clinical evaluation.
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Affiliation(s)
- Maria do Carmo Vilas-Boas
- Centro Hospitalar Universitário do Porto, Hospital Santo António, Unidade Corino de Andrade, E.P.E., Largo do Prof. Abel Salazar, 4099-001 Porto, Portugal; (M.N.C.); (T.C.)
- INESC TEC (Instituto de Engenharia de Sistemas e Computadores, Tecnologia e Ciência), FEUP (Faculdade de Engenharia da Universidade do Porto), University of Porto, R. Dr. Roberto Frias, 4200-465 Porto, Portugal;
- Correspondence: ; Tel.: +351-22-209-4000
| | - Pedro Filipe Pereira Fonseca
- LABIOMEP: Porto Biomechanics Laboratory, University of Porto, R. Dr. Plácido de Costa, 91, 4200-450 Porto, Portugal; (P.F.P.F.); (I.M.S.)
| | - Inês Martins Sousa
- LABIOMEP: Porto Biomechanics Laboratory, University of Porto, R. Dr. Plácido de Costa, 91, 4200-450 Porto, Portugal; (P.F.P.F.); (I.M.S.)
- Escola Superior de Biotecnologia, Universidade Católica Portuguesa Rua de Diogo Botelho, 1327, 4169-005 Porto, Portugal
| | - Márcio Neves Cardoso
- Centro Hospitalar Universitário do Porto, Hospital Santo António, Unidade Corino de Andrade, E.P.E., Largo do Prof. Abel Salazar, 4099-001 Porto, Portugal; (M.N.C.); (T.C.)
| | - João Paulo Silva Cunha
- INESC TEC (Instituto de Engenharia de Sistemas e Computadores, Tecnologia e Ciência), FEUP (Faculdade de Engenharia da Universidade do Porto), University of Porto, R. Dr. Roberto Frias, 4200-465 Porto, Portugal;
- LABIOMEP: Porto Biomechanics Laboratory, University of Porto, R. Dr. Plácido de Costa, 91, 4200-450 Porto, Portugal; (P.F.P.F.); (I.M.S.)
| | - Teresa Coelho
- Centro Hospitalar Universitário do Porto, Hospital Santo António, Unidade Corino de Andrade, E.P.E., Largo do Prof. Abel Salazar, 4099-001 Porto, Portugal; (M.N.C.); (T.C.)
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Nedkova-Hristova V, Baliellas C, González-Costello J, Lladó L, González-Vilatarsana E, Vélez-Santamaría V, Casasnovas C. Treatment With Diflunisal in Domino Liver Transplant Recipients With Acquired Amyloid Neuropathy. Transpl Int 2022; 35:10454. [PMID: 35497887 PMCID: PMC9044119 DOI: 10.3389/ti.2022.10454] [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: 02/22/2022] [Accepted: 03/10/2022] [Indexed: 11/13/2022]
Abstract
Objectives: To analyze the efficacy and tolerability of diflunisal for the treatment of acquired amyloid neuropathy in domino liver transplant recipients. Methods: We performed a retrospective longitudinal study of prospectively collected data for all domino liver transplant recipients with acquired amyloid neuropathy who received diflunisal at our hospital. Neurological deterioration was defined as an score increase of ≥2 points from baseline on the Neurological Impairment Scale/Neurological Impairment Scale-Lower Limbs. Results: Twelve patients who had received compassionate use treatment with diflunisal were identified, of whom seven had follow-up data for ≥12 months. Five patients (71.4%) presented with neurological deterioration on the Neurological Impairment Scale after 12 months (p = 0.0382). The main adverse effects were cardiovascular and renal, leading to diflunisal being stopped in five patients and the dose being reduced in two patients. Conclusion: Our study suggests that most domino liver transplant recipients with acquired amyloid neuropathy will develop neurological deterioration by 12 months of treatment with diflunisal. This therapy was also associated with a high incidence of adverse effects and low treatment retention. The low efficacy and low tolerability of diflunisal treatment encourage the search for new therapeutic options.
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Affiliation(s)
- Velina Nedkova-Hristova
- Neuromuscular Unit, Neurology Department, Bellvitge University Hospital-IDIBELL, Barcelona, Spain.,Multidisciplinary Unit of Familial Amyloidosis, Bellvitge University Hospital-IDIBELL, Barcelona, Spain
| | - Carmen Baliellas
- Multidisciplinary Unit of Familial Amyloidosis, Bellvitge University Hospital-IDIBELL, Barcelona, Spain.,Liver Transplantation Unit, Bellvitge University Hospital-IDIBELL, Barcelona, Spain
| | - José González-Costello
- Multidisciplinary Unit of Familial Amyloidosis, Bellvitge University Hospital-IDIBELL, Barcelona, Spain.,Advanced Heart Failure and Transplantation Unit, Cardiology Department, Bellvitge University Hospital-IDIBELL, Barcelona, Spain
| | - Laura Lladó
- Multidisciplinary Unit of Familial Amyloidosis, Bellvitge University Hospital-IDIBELL, Barcelona, Spain.,Liver Transplantation Unit, Bellvitge University Hospital-IDIBELL, Barcelona, Spain
| | - Emma González-Vilatarsana
- Multidisciplinary Unit of Familial Amyloidosis, Bellvitge University Hospital-IDIBELL, Barcelona, Spain.,Liver Transplantation Unit, Bellvitge University Hospital-IDIBELL, Barcelona, Spain
| | - Valentina Vélez-Santamaría
- Neuromuscular Unit, Neurology Department, Bellvitge University Hospital-IDIBELL, Barcelona, Spain.,Multidisciplinary Unit of Familial Amyloidosis, Bellvitge University Hospital-IDIBELL, Barcelona, Spain.,Neurometabolic Diseases Group, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain
| | - Carlos Casasnovas
- Neuromuscular Unit, Neurology Department, Bellvitge University Hospital-IDIBELL, Barcelona, Spain.,Multidisciplinary Unit of Familial Amyloidosis, Bellvitge University Hospital-IDIBELL, Barcelona, Spain.,Neurometabolic Diseases Group, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain.,Biomedical Research Network Center in Rare Diseases (CIBERER), Valencia, Spain
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Schilling M. [Gene therapy options for hereditary transthyretin-related amyloidosis]. DER NERVENARZT 2022; 93:557-565. [PMID: 35419654 DOI: 10.1007/s00115-022-01288-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/08/2022] [Indexed: 10/18/2022]
Abstract
Hereditary transthyretin-related amyloidosis (ATTRv) is a rare autosomal dominant disease and is fatal if left untreated. It is caused by mutations in the transthyretin gene. All known mutations induce misfolding of the tetrameric transthyretin molecule and protein deposits in multiple organs. In peripheral nerves this result in sensorimotor and autonomic polyneuropathy and in cardiac muscle it causes cardiomyopathy. Untreated ATTRv is characterized by an irreversible and progressive course and death 7-11 years after symptom onset. Treatment options consist of TTR stabilizing drugs, such as tafamidis and active agents that selectively interfere at the mRNA level, the so-called gene silencers patisiran and inotersen. All forms of treatment aim to prevent amyloid tissue deposition in tissues and organ dysfunction. Patisiran works by RNA interference on endogenous mechanisms of gene expression. It results in the cleavage of TTR-mRNA using the cytoplasmatic RNA-induced silencing complex. Inotersen, an antisense oligonucleotide, degrades TTR-mRNA via activation of nuclear RNase H. Both mechanisms result in a significant reduction of TTR protein serum levels. The efficacy could be demonstrated by slowing or improving neuropathy progression in the phase III study APOLLO (patisiran) or the NEURO-TTR study (inotersen). Furthermore, the use of both agents led to an improvement in the quality of life in patients with ATTRv. Both forms of treatment are approved in Germany since August 2018 for polyneuropathy stages 1 and 2 according to Coutinho. The choice of treatment should be carried out individually considering drug formulation, contraindications and the necessary safety monitoring controls.
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Affiliation(s)
- Matthias Schilling
- Klinik für Neurologie mit Institut für Translationale Neurologie, Universitätsklinikum Münster, Albert-Schweitzer-Campus 1, 48149, Münster, Deutschland.
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Ilyina LY, Kozlov VA, Sapozhnikov SP. Megakaryocytes of the Spleen in Experimental Amyloidosis and Effect of Red Wine. Bull Exp Biol Med 2022; 172:598-601. [PMID: 35352248 DOI: 10.1007/s10517-022-05437-y] [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: 08/27/2021] [Indexed: 11/25/2022]
Abstract
Amyloidosis was modeled in young mice by administration of aqueous solution of soy cream substitute and then, amyloidogenesis was corrected by oral administration of dry red wine. In mice with amyloidosis, the area of megakaryocytes decreased by 1.69 times, the relative content of oxyphilic forms of megakaryocytes increased by 4.33 times, and ploidy did not change in comparison with the corresponding parameters in intact mice. Administration of red dry grape wine against the background of formation of systemic amyloidosis changed the reaction of megakaryocytes: the content of polychromatophilic forms was comparable to the level of intact control, the content of oxyphilic forms decreased by 3.11 times, the RNA and DNA content in megakaryocyte nuclei decreased proportionally, and the ploidy decreased. Thus, red grape wine reduced the response of the megakaryocyte genome to the external supply of amyloidogenic substance.
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Affiliation(s)
- L Yu Ilyina
- I. N. Ulyanov Chuvash State University, Cheboksary, Chuvash Republic, Russia.
| | - V A Kozlov
- I. N. Ulyanov Chuvash State University, Cheboksary, Chuvash Republic, Russia
| | - S P Sapozhnikov
- I. N. Ulyanov Chuvash State University, Cheboksary, Chuvash Republic, Russia
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Papagianni A, Ihne S, Zeller D, Morbach C, Üçeyler N, Sommer C. Clinical and apparative investigation of large and small nerve fiber impairment in mixed cohort of ATTR-amyloidosis: impact on patient management and new insights in wild-type. Amyloid 2022; 29:14-22. [PMID: 34632904 DOI: 10.1080/13506129.2021.1976751] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Neuropathy in transthyretin (ATTR) amyloidosis is frequently underdiagnosed, delaying effective treatment. Early detection of large- and small-nerve fiber damage via a comprehensive diagnostic algorithm impacts on clinical management. METHODS A mixed cohort of patients with ATTR amyloidosis (wild type-wt, hereditary-v and TTR gene mutation carriers) of the Interdisciplinary Amyloidosis Centre of Northern Bavaria underwent clinical examination, nerve conduction studies (NCS), quantitative sensory testing (QST), sympathetic skin response (SSR), quantitative sudomotor axon reflex testing (QSART), and skin punch biopsies. RESULTS Out of 30 study participants (7 ATTRv/asymptomatic gene carriers, 23 ATTRwt) large-fiber neuropathy was found in 43% patients with ATTRv and 70% with ATTRwt. QST revealed a mixed small and large fiber impairment in all ATTRv/asymptomatic gene carriers and in 78% of ATTRwt. Autonomic tests were pathological in the majority of ATTRv and over 50% of ATTRwt patients. Skin biopsies (sampled from 19 patients) showed reduced intraepidermal nerve fiber density (IENFD) in all ATTRv/asymptomatic gene carriers and over 80% of ATTRwt. Two ATTRwt patients had a pure small fiber neuropathy. After reviewing for relevant co-morbidities, 44% of ATTRwt patients exhibited neuropathy (large and/or small fiber) without evidence of any other underlying cause. Disease manifestation in the peripheral nervous system was newly diagnosed in three ATTR gene mutation carriers, thereby influencing clinical management. CONCLUSION This comprehensive test program gives new insights regarding the presence of neuropathy in ATTRv and ATTRwt, which impact on patient management.
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Affiliation(s)
- Aikaterini Papagianni
- Department of Neurology, University Hospital Würzburg, Würzburg, Germany.,Interdisciplinary Amyloidosis Center of Northern Bavaria, University Hospital Würzburg, Würzburg, Germany
| | - Sandra Ihne
- Interdisciplinary Amyloidosis Center of Northern Bavaria, University Hospital Würzburg, Würzburg, Germany.,Department of Internal Medicine II, University Hospital Würzburg, Würzburg, Germany
| | - Daniel Zeller
- Department of Neurology, University Hospital Würzburg, Würzburg, Germany.,Interdisciplinary Amyloidosis Center of Northern Bavaria, University Hospital Würzburg, Würzburg, Germany
| | - Caroline Morbach
- Interdisciplinary Amyloidosis Center of Northern Bavaria, University Hospital Würzburg, Würzburg, Germany.,Comprehensive Heart Failure Centre (CHFC), University Hospital Würzburg, Würzburg, Germany
| | - Nurcan Üçeyler
- Department of Neurology, University Hospital Würzburg, Würzburg, Germany
| | - Claudia Sommer
- Department of Neurology, University Hospital Würzburg, Würzburg, Germany.,Interdisciplinary Amyloidosis Center of Northern Bavaria, University Hospital Würzburg, Würzburg, Germany
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Bueno Juana E, Gracia Gutiérrez A, Melero Polo J, Roteta Unceta-Barrenechea A, Andrés Gracia A, Lahuerta Pueyo C, Menao Guillén S, Revilla Martí P, Aibar Arregui M. Estudio descriptivo de la amiloidosis por transtiretina en un hospital de tercer nivel sin unidad de referencia. Rev Clin Esp 2022. [DOI: 10.1016/j.rce.2021.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Seidi C, Patrão M, Guerra S, Oliveira CR, Mendes Á, Sousa L. The Experience of Receiving and Transmitting a Genetic Disease. JOURNAL OF CONSTRUCTIVIST PSYCHOLOGY 2022. [DOI: 10.1080/10720537.2022.2037113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Catarina Seidi
- Departamento de Educação e Psicologia, University of Aveiro, Aveiro, Portugal
| | - Marta Patrão
- Departamento de Ciências Sociais, Políticas e do Território, University of Aveiro, Aveiro, Portugal
| | - Sara Guerra
- Cintesis.ua, University of Aveiro, Aveiro, Portugal
- Instituto Superior de Serviço Social do Porto, Senhora da Hora, Portugal
| | - Carla Roma Oliveira
- Departamento de Educação e Psicologia, University of Aveiro, Aveiro, Portugal
- Cintesis.ua, University of Aveiro, Aveiro, Portugal
- UnIGENe, IBMC- Institute for Molecular and Cell Biology, i3S – Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
| | - Álvaro Mendes
- UnIGENe, IBMC- Institute for Molecular and Cell Biology, i3S – Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
- CGPP – Centre for Predictive and Preventive Genetics, IBMC- Institute for Molecular and Cell Biology, i3S – Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
| | - Liliana Sousa
- Departamento de Educação e Psicologia, University of Aveiro, Aveiro, Portugal
- Cintesis.ua, University of Aveiro, Aveiro, Portugal
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Leonardi L, Adam C, Beaudonnet G, Beauvais D, Cauquil C, Not A, Morassi O, Benmalek A, Trassard O, Echaniz-Laguna A, Adams D, Labeyrie C. Skin amyloid deposits and nerve fiber loss as markers of neuropathy onset and progression in hereditary transthyretin amyloidosis. Eur J Neurol 2022; 29:1477-1487. [PMID: 35100482 DOI: 10.1111/ene.15268] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Accepted: 01/27/2022] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To assess skin biopsy as marker of disease onset and severity in hereditary transthyretin amyloidosis with polyneuropathy (ATTRv-PN), a treatable disease. METHODS In this single center retrospective study, skin Congo red staining and intraepidermal nerve fiber density (IENFD) were evaluated in symptomatic ATTRv-PN patients and asymptomatic TTR gene mutation carriers between 2012 and 2019. Non-ATTRv subjects with small fiber neuropathy suspicion who underwent skin biopsy in the same timespan were used as controls. RESULTS One-hundred-eighty-three symptomatic ATTRv-PN, 36 asymptomatic carriers, and 537 non-ATTRv patients were included. Skin biopsy demonstrated amyloid depositions in 80% of the 183 symptomatic cases. Skin amyloid deposits were found in 75% of early-stage ATTRv-PN patients, and in 14% of asymptomatic carriers. All 183 symptomatic and 34/36 asymptomatic patients displayed decreased ankle IENFD with a proximal-distal gradient distribution, and reduced IEFND correlated with disease severity and duration. CONCLUSIONS Our study demonstrates skin amyloid deposits are a marker of ATTRv-PN disease onset, and decreased IENFD a marker of disease progression. These results are of major importance for the early identification of ATTRv-PN patients in need of disease-modifying treatments.
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Affiliation(s)
- Luca Leonardi
- Referral Center for Familial Amyloid Polyneuropathy and other rare peripheral neuropathies (NNERF), Department of Neurology, Bicêtre University Hospital, AP-HP, 94270, Le Kremlin Bicêtre, France.,Department of Neuroscience, Mental Health and Sensory Organs (NESMOS), Sapienza University of Rome, Sant'Andrea Hospital, Rome, Italy
| | - Clovis Adam
- Referral Center for Familial Amyloid Polyneuropathy and other rare peripheral neuropathies (NNERF), Department of Neurology, Bicêtre University Hospital, AP-HP, 94270, Le Kremlin Bicêtre, France.,University Paris-Saclay, INSERM U 1195, 94270, Le Kremlin Bicêtre, France.,Pathology Department, Bicêtre University Hospital, AP-HP, 94270, Le Kremlin Bicêtre, France
| | - Guillemette Beaudonnet
- Referral Center for Familial Amyloid Polyneuropathy and other rare peripheral neuropathies (NNERF), Department of Neurology, Bicêtre University Hospital, AP-HP, 94270, Le Kremlin Bicêtre, France.,Neurophysiology and Epileptology Department, Bicêtre University Hospital, AP-HP, 94270, Le Kremlin Bicêtre, France
| | - Diane Beauvais
- Referral Center for Familial Amyloid Polyneuropathy and other rare peripheral neuropathies (NNERF), Department of Neurology, Bicêtre University Hospital, AP-HP, 94270, Le Kremlin Bicêtre, France
| | - Cécile Cauquil
- Referral Center for Familial Amyloid Polyneuropathy and other rare peripheral neuropathies (NNERF), Department of Neurology, Bicêtre University Hospital, AP-HP, 94270, Le Kremlin Bicêtre, France
| | - Adeline Not
- Referral Center for Familial Amyloid Polyneuropathy and other rare peripheral neuropathies (NNERF), Department of Neurology, Bicêtre University Hospital, AP-HP, 94270, Le Kremlin Bicêtre, France
| | - Olivier Morassi
- Referral Center for Familial Amyloid Polyneuropathy and other rare peripheral neuropathies (NNERF), Department of Neurology, Bicêtre University Hospital, AP-HP, 94270, Le Kremlin Bicêtre, France
| | - Anouar Benmalek
- School of Pharmacy, University Paris-Saclay, Châtenay-Malabry, France
| | - Olivier Trassard
- Pathology Department, Bicêtre University Hospital, AP-HP, 94270, Le Kremlin Bicêtre, France
| | - Andoni Echaniz-Laguna
- Referral Center for Familial Amyloid Polyneuropathy and other rare peripheral neuropathies (NNERF), Department of Neurology, Bicêtre University Hospital, AP-HP, 94270, Le Kremlin Bicêtre, France.,University Paris-Saclay, INSERM U 1195, 94270, Le Kremlin Bicêtre, France
| | - David Adams
- Referral Center for Familial Amyloid Polyneuropathy and other rare peripheral neuropathies (NNERF), Department of Neurology, Bicêtre University Hospital, AP-HP, 94270, Le Kremlin Bicêtre, France.,University Paris-Saclay, INSERM U 1195, 94270, Le Kremlin Bicêtre, France
| | - Céline Labeyrie
- Referral Center for Familial Amyloid Polyneuropathy and other rare peripheral neuropathies (NNERF), Department of Neurology, Bicêtre University Hospital, AP-HP, 94270, Le Kremlin Bicêtre, France.,University Paris-Saclay, INSERM U 1195, 94270, Le Kremlin Bicêtre, France.,Pathology Department, Bicêtre University Hospital, AP-HP, 94270, Le Kremlin Bicêtre, France
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Hsueh HW, Chao CC, Chang K, Jeng YM, Katsuno M, Koike H, Hsieh ST. Unique Phenotypes With Corresponding Pathology in Late-Onset Hereditary Transthyretin Amyloidosis of A97S vs. V30M. Front Aging Neurosci 2022; 13:786322. [PMID: 35153720 PMCID: PMC8826435 DOI: 10.3389/fnagi.2021.786322] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 11/29/2021] [Indexed: 12/22/2022] Open
Abstract
ObjectiveHereditary transthyretin amyloidosis (ATTRv) encompasses different phenotypes among various genotypes. The analysis of the natural history and risk factors of faster progression in different genotypes would refine the treatment strategy.MethodsThe clinical manifestations of ATTRv from A97S (p.A117S) of Taiwanese and late-onset V30M (p.V50M) of Japanese were compared. An autopsy study of A97S was performed.ResultsThere existed three unique features in the A97S cohort compared to the V30M cohort: (1) dysphagia, (2) carpal tunnel syndrome (CTS), and (3) onset age. First, dysphagia was common in A97S (53.4%) but not in V30M and served as a contributor to fast disease progression. All phases of swallowing were affected. In the autopsy pathology, there were extensive amyloid deposits in the viscera and nerves of the tongue, larynx, and esophagus. In A97S, 45 patients (43.3%) had a history of CTS before the onset of length-dependent symptoms by 3 years. The amyloid deposition was more prominent in the median nerve than that in the transverse carpal ligament. The onset age at different stages was younger in the A97S cohort than the V30M cohort by 4–5 years.ConclusionThese phenotypic characteristics together with autopsy pathology in A97S are distinct from V30M. Early dysphagia in A97S correlated with fast progression. In A97S, median neuropathy leading to CTS might be in a continuous spectrum of ATTRv course rather than an independent disease entity. Such observations may serve as a foundation to explore and analyze unique phenotypes among various genotypes.
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Affiliation(s)
- Hsueh-Wen Hsueh
- Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
- Department of Anatomy and Cell Biology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chi-Chao Chao
- Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
| | - Koping Chang
- Department of Pathology, National Taiwan University Hospital, Taipei, Taiwan
| | - Yung-Ming Jeng
- Department of Pathology, National Taiwan University Hospital, Taipei, Taiwan
| | - Masahisa Katsuno
- Department of Neurology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Haruki Koike
- Department of Neurology, Nagoya University Graduate School of Medicine, Nagoya, Japan
- *Correspondence: Haruki Koike,
| | - Sung-Tsang Hsieh
- Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
- Department of Anatomy and Cell Biology, National Taiwan University College of Medicine, Taipei, Taiwan
- Graduate Institute of Brain and Mind Sciences, National Taiwan University College of Medicine, Taipei, Taiwan
- Center of Precision Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
- Sung-Tsang Hsieh,
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Elderly patients with suspected Charcot-Marie-Tooth disease should be tested for the TTR gene for effective treatments. J Hum Genet 2022; 67:353-362. [PMID: 35027655 DOI: 10.1038/s10038-021-01005-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/30/2021] [Accepted: 12/03/2021] [Indexed: 01/23/2023]
Abstract
BACKGROUND AND AIMS Some hereditary transthyretin (ATTRv) amyloidosis patients are misdiagnosed as Charcot-Marie-Tooth disease (CMT) at onset. We assess the findings to identify ATTRv amyloidosis among patients with suspected CMT to screen transthyretin gene variants for treatments. METHODS We assessed clinical, cerebrospinal fluid, and electrophysiological findings by comparing ATTRv amyloidosis patients with suspected CMT (n = 10) and CMT patients (n = 489). RESULTS The median (interquartile range) age at onset of neurological symptoms was 69 (64.2-70) years in the ATTRv amyloidosis vs 12 (5-37.2) years in CMT group (Mann-Whitney U, p < 0.01). The proportion of patients with initial sensory symptoms was 70% in the ATTRv amyloidosis group vs 7.1% in CMT group (Fisher's exact, p < 0.01). The proportion of patients with histories of suspected chronic inflammatory demyelinating polyneuropathy (CIDP) were 50% in the ATTRv amyloidosis group vs 8.7% in CMT group (Fisher's exact, p < .01). Other measures and outcomes were not different between the two groups. Five of the six patients with ATTRv amyloidosis received treatment and survived. INTERPRETATION For effective treatments, the transthyretin gene should be screened in patients with suspected CMT with old age at onset of neurological symptoms, initial sensory symptoms, and histories of suspected CIDP.
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Lamotte G, Sandroni P. Updates on the Diagnosis and Treatment of Peripheral Autonomic Neuropathies. Curr Neurol Neurosci Rep 2022; 22:823-837. [PMID: 36376534 PMCID: PMC9663281 DOI: 10.1007/s11910-022-01240-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/05/2022] [Indexed: 11/16/2022]
Abstract
PURPOSE OF REVIEW Autonomic neuropathies are a complex group of disorders and result in diverse clinical manifestations that affect the cardiovascular, gastrointestinal, urogenital, and sudomotor systems. We focus this review on the diagnosis and treatment of peripheral autonomic neuropathies. We summarize the diagnostic tools and current treatment options that will help the clinician care for individuals with peripheral autonomic neuropathies. RECENT FINDINGS Autonomic neuropathies occur often in conjunction with somatic neuropathies but they can also occur in isolation. The autonomic reflex screen is a validated tool to assess sympathetic postganglionic sudomotor, cardiovascular sympathetic noradrenergic, and cardiac parasympathetic (i.e., cardiovagal) function. Initial laboratory evaluation for autonomic neuropathies includes fasting glucose or oral glucose tolerance test, thyroid function tests, kidney function tests, vitamin-B12, serum, and urine protein electrophoresis with immunofixation. Other laboratory tests should be guided by the clinical context. Reduced intraepidermal nerve density on skin biopsy is a finding, not a diagnosis. Skin biopsy can be helpful in selected individuals for the diagnosis of disorders affecting small nerve fibers; however, we strongly discourage the use of skin biopsy without clinical-physiological correlation. Ambulatory blood pressure monitoring may lead to early identification of patients with cardiovascular autonomic neuropathy in the primary care setting. Disease-modifying therapies should be used when available in combination with nonpharmacological management and symptomatic pharmacologic therapies. Autonomic function testing can guide the therapeutic decisions and document improvement with treatment. A systematic approach guided by the autonomic history and standardized autonomic function testing may help clinicians when identifying and/or counseling patients with autonomic neuropathies. Treatment should be individualized and disease-modifying therapies should be used when available.
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Affiliation(s)
- Guillaume Lamotte
- Department of Neurology, University of Utah, Salt Lake City, UT, USA.
| | - Paola Sandroni
- Department of Neurology, Mayo Clinic, Rochester, MN, USA
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Smerikarova M, Bozhanov S, Maslarska V, Tournev I. Determination of Tafamidis Plasma Concentrations in Amyloidosis Patients with Glu89Gln Mutation by HPLC-UV Detection. J Chromatogr Sci 2021; 60:840-847. [PMID: 34897414 DOI: 10.1093/chromsci/bmab132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Indexed: 11/14/2022]
Abstract
Present study describes a high-performance liquid chromatography method for the determination of the potent kinetic stabilizer-Tafamidis in human plasma. It was approved for medical use in European Union in 2011. Ultra violet (UV) detection mode and isocratic elution of the mobile phase were set and made the analytical procedure fast and widely applicable. Chromatographic determination was performed on a Purospher® RP-18 column. The mobile phase consisted of 0.1% trifluoroacetic acid in water and acetonitrile in the ratio 42:58 v/v and the flow rate was 1.0 ml/min. All analyses were carried at a room temperature and the detector was set at 280 nm. Calibration curve over a range of 1.00-10.00 μM was constructed for the purposes of linearity method validation. The specificity and effectiveness of the developed method made it suitable for observation of patients' plasma Tafamidis concentration with time and drug therapy monitoring.
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Affiliation(s)
- Miglena Smerikarova
- Department of Chemistry, Faculty of Pharmacy, Medical University, Dunav Str. no. 2, Sofia 1000, Bulgaria
| | - Stanislav Bozhanov
- Department of Chemistry, Faculty of Pharmacy, Medical University, Dunav Str. no. 2, Sofia 1000, Bulgaria
| | - Vania Maslarska
- Department of Chemistry, Faculty of Pharmacy, Medical University, Dunav Str. no. 2, Sofia 1000, Bulgaria
| | - Ivailo Tournev
- Clinic of Nervous Diseases, UMBAL Aleksandrovska, Department of Neurology, Medical University, Sv. Georgi Sofiiski Str. no. 1, Sofia 1431, Bulgaria
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Meira AT, Sato MT, Shiokawa N, Teive HAG. Retinal amyloid angiopathy. ARQUIVOS DE NEURO-PSIQUIATRIA 2021; 80:335-336. [PMID: 34852076 DOI: 10.1590/0004-282x-anp-2021-0297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 10/12/2021] [Indexed: 11/21/2022]
Affiliation(s)
- Alex Tiburtino Meira
- Universidade Federal da Paraíba, Departamento de Medicina Interna, Serviço de Neurologia, João Pessoa PB, Brazil
| | - Mario Teruo Sato
- Universidade Federal do Paraná, Departamento de Oftalmologia, Serviço de Oftalmologia, Curitiba PR, Brazil
| | - Naoye Shiokawa
- Universidade Federal do Paraná, Departamento de Oftalmologia, Serviço de Oftalmologia, Curitiba PR, Brazil
| | - Hélio Afonso Ghizoni Teive
- Universidade Federal do Paraná, Departamento de Medicina Interna, Serviço de Neurologia, Curitiba PR, Brazil
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Small GR, Poulin A, Tavoosi A, Small TD, Crean AM, Chow BJW. Cardiac Computed Tomography for Amyloidosis. CURRENT CARDIOVASCULAR IMAGING REPORTS 2021. [DOI: 10.1007/s12410-021-09560-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Lioncino M, Monda E, Palmiero G, Caiazza M, Vetrano E, Rubino M, Esposito A, Salerno G, Dongiglio F, D'Onofrio B, Verrillo F, Cerciello G, Manganelli F, Pacileo G, Bossone E, Golino P, Calabrò P, Limongelli G. Cardiovascular Involvement in Transthyretin Cardiac Amyloidosis. Heart Fail Clin 2021; 18:73-87. [PMID: 34776085 DOI: 10.1016/j.hfc.2021.07.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Transthyretin cardiac amyloidosis (ATTR-CA) is a systemic disorder resulting from the extracellular deposition of amyloid fibrils of misfolded transthyretin protein in the heart. ATTR-CA is a life-threatening disease, which can be caused by progressive deposition of wild type transthyretin (wtATTR) or by aggregation of an inherited mutated variant of transthyretin (mATTR). mATTR Is a rare condition transmitted in an autosomal dominant manner with incomplete penetrance, causing heterogenous phenotypes which can range from predominant neuropathic involvement, predominant cardiomyopathy, or mixed. Diagnosis of ATTR-CA is complex and requires integration of different imaging tools (echocardiography, bone scintigraphy, magnetic resonance) with genetics, clinical signs, laboratory tests, and histology. In recent years, new therapeutic agents have shown good efficacy and impact on survival and quality of life in this subset of patients, nevertheless patients affected by ATTR-CA may still carry an unfavorable prognosis, thus highlighting the need for new therapies. This review aims to assess cardiovascular involvement, diagnosis, and management of patients affected by ATTR-CA.
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Affiliation(s)
- Michele Lioncino
- Inherited and Rare Cardiovascular Disease Unit, Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", AORN dei Colli, Monaldi Hospital, Naples, Italy
| | - Emanuele Monda
- Inherited and Rare Cardiovascular Disease Unit, Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", AORN dei Colli, Monaldi Hospital, Naples, Italy
| | - Giuseppe Palmiero
- Inherited and Rare Cardiovascular Disease Unit, Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", AORN dei Colli, Monaldi Hospital, Naples, Italy
| | - Martina Caiazza
- Inherited and Rare Cardiovascular Disease Unit, Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", AORN dei Colli, Monaldi Hospital, Naples, Italy
| | - Erica Vetrano
- Inherited and Rare Cardiovascular Disease Unit, Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", AORN dei Colli, Monaldi Hospital, Naples, Italy; Internal Medicine Unit, Department of Translational Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Marta Rubino
- Inherited and Rare Cardiovascular Disease Unit, Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", AORN dei Colli, Monaldi Hospital, Naples, Italy
| | - Augusto Esposito
- Inherited and Rare Cardiovascular Disease Unit, Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", AORN dei Colli, Monaldi Hospital, Naples, Italy
| | - Gemma Salerno
- Vanvitelli Cardiology Unit, Monaldi Hospital, Naples 80131, Italy
| | - Francesca Dongiglio
- Inherited and Rare Cardiovascular Disease Unit, Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", AORN dei Colli, Monaldi Hospital, Naples, Italy
| | - Barbara D'Onofrio
- Inherited and Rare Cardiovascular Disease Unit, Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", AORN dei Colli, Monaldi Hospital, Naples, Italy
| | - Federica Verrillo
- Inherited and Rare Cardiovascular Disease Unit, Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", AORN dei Colli, Monaldi Hospital, Naples, Italy
| | - Giuseppe Cerciello
- Haematology Unit, Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy
| | - Fiore Manganelli
- Department of Neuroscience, Reproductive Sciences and Odontostomatology, University of Naples 'Federico II', Via Pansini, 5, Naples 81025, Italy
| | - Giuseppe Pacileo
- Heart Failure and Cardiac Rehabilitation Unit, Department of Cardiology, AORN dei Colli, Monaldi Hospital, Naples, Italy
| | - Eduardo Bossone
- Division of Cardiology, "Antonio Cardarelli" Hospital, Naples 80131, Italy
| | - Paolo Golino
- Vanvitelli Cardiology Unit, Monaldi Hospital, Naples 80131, Italy; Department of Translational Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Paolo Calabrò
- Department of Translational Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy; Division of Cardiology, A.O.R.N. "Sant'Anna & San Sebastiano", Caserta I-81100, Italy
| | - Giuseppe Limongelli
- Inherited and Rare Cardiovascular Disease Unit, Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", AORN dei Colli, Monaldi Hospital, Naples, Italy; Institute of Cardiovascular Sciences, University College of London and St. Bartholomew's Hospital, London WC1E 6DD, UK.
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48
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Sun F, Liu J, Huang Y, Zhu X, Liu Y, Zhang L, Yan J. A quinoline derived D-A-D type fluorescent probe for sensing tetrameric transthyretin. Bioorg Med Chem Lett 2021; 52:128408. [PMID: 34626785 DOI: 10.1016/j.bmcl.2021.128408] [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: 06/15/2021] [Revised: 09/20/2021] [Accepted: 10/01/2021] [Indexed: 10/20/2022]
Abstract
Nowadays, with an upward trend in the prevalence of intracerebral amyloidosis, it is of great significance to use fluorescent probes for early diagnosis in vitro. In this study, a quinoline-derived D-A-D type chemosensor was rationally designed and synthesized as a probe for the sensitive detection of tetrameric transthyretin (WT-TTR).
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Affiliation(s)
- Fantao Sun
- MOE International Joint Research Laboratory on Synthetic Biology and Medicines, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, PR China
| | - Jinsheng Liu
- MOE International Joint Research Laboratory on Synthetic Biology and Medicines, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, PR China
| | - Yanan Huang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, PR China
| | - Xinyin Zhu
- MOE International Joint Research Laboratory on Synthetic Biology and Medicines, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, PR China
| | - Yu Liu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, PR China
| | - Lei Zhang
- MOE International Joint Research Laboratory on Synthetic Biology and Medicines, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, PR China
| | - Jinwu Yan
- MOE International Joint Research Laboratory on Synthetic Biology and Medicines, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, PR China.
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49
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Sequeira VCC, Penetra MA, Duarte L, Azevedo FRD, Sayegh RSR, Pedrosa RC, Cruz MW. Hereditary transthyretin-mediated amyloidosis with polyneuropathy: baseline anthropometric, demographic and disease characteristics of patients from a reference center. ARQUIVOS DE NEURO-PSIQUIATRIA 2021; 80:262-269. [PMID: 34755769 DOI: 10.1590/0004-282x-anp-2020-0590] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 03/25/2021] [Indexed: 01/15/2023]
Abstract
BACKGROUND Hereditary transthyretin-mediated (hATTR) amyloidosis with polyneuropathy is a rare, inherited, multisystem, and often fatal disease caused by a variant in transthyretin (TTR) gene. Baseline characteristics of patients, especially anthropometric data, are scarce in the literature, and they are relevant to define effective treatment strategies. OBJECTIVE This study aimed to describe baseline demographic, anthropometric, and disease characteristics in a cohort of patients from a reference center in Brazil. METHODS Symptomatic patients not previously included in clinical trials and eligible for treatment were enrolled. Ethnicity, state of residence, age, sex, weight, height, body mass index (BMI), TTR variant, and Polyneuropathy Disability Score (PND) at diagnosis were analyzed. RESULTS Among the 108 patients enrolled, 58.33% were male, 60.19% were Caucasian, and 83.33% lived in the Southeast region. Mean age was 51.61 (±16.37) years, mean weight was 65.76 (±15.16) kg, mean height was 168.33 (±10.26) cm, and mean BMI was 23.11 (±4.45) kg/m2. The most prevalent variant was V30M (86.11%). Patients with PND score 0 presenting autonomic neuropathy were 14.81%. Patients with PND score I-II and III-IV were 52.78 and 32.41%, respectively. Mean weight and BMI were significantly lower in patients with sensory-motor manifestations. CONCLUSIONS This is the largest cohort of patients in Brazil for whom anthropometric characteristics have been described. Baseline demographic, anthropometric, and disease data indicate that delay in diagnosis of hATTR amyloidosis with polyneuropathy is still a problem and that efforts must be made to expedite diagnosis and maximize opportunities for new disease-modifying treatments.
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Affiliation(s)
- Vanessa Cristina Cunha Sequeira
- Universidade Federal do Rio de Janeiro, Hospital Universitário Clementino Fraga Filho, Centro de Paramiloidose Antônio Rodrigues de Mello, Rio de Janeiro RJ, Brazil.,Universidade Federal do Rio de Janeiro, Hospital Universitário Clementino Fraga Filho, Instituto do Coração Edson Saad, Rio de Janeiro RJ, Brazil
| | - Maria Alice Penetra
- Universidade Federal do Rio de Janeiro, Hospital Universitário Clementino Fraga Filho, Centro de Paramiloidose Antônio Rodrigues de Mello, Rio de Janeiro RJ, Brazil
| | - Lisa Duarte
- Alnylam Pharmaceuticals Inc, São Paulo SP, Brazil
| | | | | | - Roberto Coury Pedrosa
- Universidade Federal do Rio de Janeiro, Hospital Universitário Clementino Fraga Filho, Centro de Paramiloidose Antônio Rodrigues de Mello, Rio de Janeiro RJ, Brazil.,Universidade Federal do Rio de Janeiro, Hospital Universitário Clementino Fraga Filho, Instituto do Coração Edson Saad, Rio de Janeiro RJ, Brazil
| | - Márcia Waddington Cruz
- Universidade Federal do Rio de Janeiro, Hospital Universitário Clementino Fraga Filho, Centro de Paramiloidose Antônio Rodrigues de Mello, Rio de Janeiro RJ, Brazil
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50
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Avetisov SE, Surnina ZV, Zinovyeva OE, Safiulina EI, Shcheglova NS, Nosovsky AM. [State of corneal nerve fibers in systemic amyloidosis]. Vestn Oftalmol 2021; 137:231-237. [PMID: 34669332 DOI: 10.17116/oftalma2021137052231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The term systemic amyloidosis unites a group of diseases with a single pathogenetic mechanism involving diffuse deposition of a pathological fibrillar protein (amyloid) in the intercellular space of various organs. Among the systemic forms of amyloidosis, light chain amyloidosis (AL-amyloidosis) occurs most often in clinical practice, while transthyretin amyloidosis (TTR-amyloidosis) is its most common hereditary form. Laser corneal confocal microscopy (CCM) allows for in vivo and non-invasive assessment of the state of corneal nerve fibers (CNF). PURPOSE To assess the state of CNF in systemic amyloidosis by confocal microscopy data obtained in vivo. MATERIAL AND METHODS The main study group included 16 patients (6 men and 10 women, mean age 60.5±11.6 years) with morphologically confirmed primary AL-amyloidosis, and 14 patients (5 men and 9 women, mean age 59.4±11.3 years) with genetically and morphologically confirmed hereditary TTR-amyloidosis. The control group included 23 healthy volunteers of the same age range without any neurological pathologies. The state of CNF was assessed by in vivo CCM data recorded on the HRT III system and its consequently processing using authors' self-developed program Liner 1.2. The criteria for neuropathy intensity was the degree of CNF tortuosity characterized by coefficients of anisotropy (KΔL) and symmetry (Ksym) of CNF orientation. RESULTS According to the NIS scale, the manifestations of neuropathy in the subgroup of patients with TTR-amyloidosis were significantly more pronounced compared to AL-amyloidosis patients. The severity of clinical manifestations of neuropathy did not depend on the duration of TTR-amyloidosis and AL-amyloidosis (Spearman R rs=0.21, p=0.58 and rs= -0.49, p=0.055, respectively). Changes in the quantitative indicators (a decrease in the anisotropy coefficient and an increase in the symmetry coefficient of the fibers orientation) confirm increased tortuosity of CNF in systemic amyloidosis. CONCLUSION The clinical picture of systemic amyloidosis is characterized by polymorphism of neurological manifestations that include various symptoms of damage to the peripheral somatic and autonomic nervous system. In vivo CCM can be used to reveal qualitative and quantitative changes in CNF in patients with systemic amyloidosis. However, statistical unreliability of the identified quantitative changes allows considering the state of CNF in amyloidosis only as a component of the disease monitoring algorithm, but not as a biomarker of the disease.
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Affiliation(s)
- S E Avetisov
- Research Institute of Eye Disease, Moscow, Russia.,Sechenov First Moscow State Medical University, Moscow, Russia
| | - Z V Surnina
- Research Institute of Eye Disease, Moscow, Russia
| | - O E Zinovyeva
- Sechenov First Moscow State Medical University, Moscow, Russia
| | - E I Safiulina
- Sechenov First Moscow State Medical University, Moscow, Russia
| | - N S Shcheglova
- Sechenov First Moscow State Medical University, Moscow, Russia
| | - A M Nosovsky
- Institute of Biomedical Problems of the Russian Academy of Sciences, Moscow, Russia
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