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Pfau Née Hess K, Lengyel I, Norel JOV, Leeuwen RV, Risseeuw S, Leftheriotis G, Scholl HPN, Feltgen N, Holz FG, Pfau M. Pseudoxanthoma elasticum - Genetics, Pathophysiology, and Clinical Presentation. Prog Retin Eye Res 2024:101274. [PMID: 38815804 DOI: 10.1016/j.preteyeres.2024.101274] [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: 02/04/2024] [Revised: 05/17/2024] [Accepted: 05/20/2024] [Indexed: 06/01/2024]
Abstract
Pseudoxanthoma elasticum (PXE) is an autosomal-recessively inherited multisystem disease. Mutations in the ABCC6-gene are causative, coding for a transmembrane transporter mainly expressed in hepatocytes, which promotes the efflux of adenosine triphosphate (ATP). This results in low levels of plasma inorganic pyrophosphate (PPi), a critical anti-mineralization factor. The clinical phenotype of PXE is characterized by the effects of elastic fiber calcification in the skin, the cardiovascular system, and the eyes. In the eyes, calcification of Bruch's membrane results in clinically visible lesions, including peau d'orange, angioid streaks, and comet tail lesions. Frequently, patients must be treated for secondary macular neovascularization. No effective treatment is available for treating the cause of PXE, but several promising approaches are emerging. Finding appropriate outcome measures remains a significant challenge for clinical trials in this slowly progressive disease. This review article provides an in-depth summary of the current understanding of PXE and its multi-systemic manifestations. The article offers a detailed overview of the ocular manifestations, including their morphological and functional consequences, as well as potential complications. Lastly, previous and future clinical trials of causative treatments for PXE are discussed.
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Affiliation(s)
- Kristina Pfau Née Hess
- Department of Ophthalmology, University Hospital Basel, Basel, Switzerland; Department of Ophthalmology, University Hospital Bonn, Bonn, Germany.
| | - Imre Lengyel
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Science, Queen's University Belfast, Belfast, Northern Ireland, United Kingdom; Department of Medical Physics and Biomedical Engineering, University College London, London, United Kingdom
| | | | - Redmer van Leeuwen
- Department of Ophthalmology, University Medical Center Utrecht, Utrecht University, The Netherlands
| | - Sara Risseeuw
- Department of Ophthalmology, University Medical Center Utrecht, Utrecht University, The Netherlands
| | - Georges Leftheriotis
- University Hospital Nice, Vascular Physiology and Medicine Unit, 06000, Nice, France
| | | | - Nicolas Feltgen
- Department of Ophthalmology, University Hospital Basel, Basel, Switzerland
| | - Frank G Holz
- Department of Ophthalmology, University Hospital Bonn, Bonn, Germany
| | - Maximilian Pfau
- Department of Ophthalmology, University Hospital Basel, Basel, Switzerland; Institute of Molecular and Clinical Ophthalmology Basel, Basel, Basel-Stadt, Switzerland
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Mansoori GA, Mahmeed WA, Wani S, Salih BT, Ansari TE, Farook F, Farooq Z, Khair H, Zaręba K, Dhahouri NA, Raj A, Foo RS, Ali BR, Jasmi FA, Akawi N. Introducing and Implementing Genetic Assessment in Cardio-Obstetrics Clinical Practice: Clinical and Genetic Workup of Patients with Cardiomyopathy. Int J Mol Sci 2023; 24:ijms24119119. [PMID: 37298070 DOI: 10.3390/ijms24119119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/09/2023] [Accepted: 05/11/2023] [Indexed: 06/12/2023] Open
Abstract
Cardiovascular disease (CVD) during pregnancy varies significantly worldwide, influenced by factors such as access to healthcare, delayed diagnosis, causes, and risk factors. Our study sought to explore the spectrum of CVD present in pregnant women in the United Arab Emirates to better understand this population's unique needs and challenges. Central to our study is an emphasis on the importance of implementing a multidisciplinary approach that involves the collaboration of obstetricians, cardiologists, geneticists, and other healthcare professionals to ensure that patients receive comprehensive and coordinated care. This approach can also help identify high-risk patients and implement preventive measures to reduce the occurrence of adverse maternal outcomes. Furthermore, increasing awareness among women about the risk of CVD during pregnancy and obtaining detailed family histories can help in the early identification and management of these conditions. Genetic testing and family screening can also aid in identifying inherited CVD that can be passed down through families. To illustrate the significance of such an approach, we provide a comprehensive analysis of five women's cases from our retrospective study of 800 women. The findings from our study emphasize the importance of addressing maternal cardiac health in pregnancy and the need for targeted interventions and improvements in the existing healthcare system to reduce adverse maternal outcomes.
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Affiliation(s)
- Ghadeera Al Mansoori
- Department of Cardiology, Sheikh Shakhbout Medical City, Abu Dhabi 11001, United Arab Emirates
| | - Wael Al Mahmeed
- Heart, Vascular & Thoracic Institute, Cleveland Clinic, Abu Dhabi 112412, United Arab Emirates
| | - Saleema Wani
- Department of Obstetrics & Gynecology, Corniche Hospital, Abu Dhabi 3788, United Arab Emirates
| | - Bashir Taha Salih
- Department of Obstetrics & Gynecology, Corniche Hospital, Abu Dhabi 3788, United Arab Emirates
| | - Tarek El Ansari
- Department of Obstetrics & Gynecology, Corniche Hospital, Abu Dhabi 3788, United Arab Emirates
| | - Fathima Farook
- Department of Obstetrics & Gynecology, Corniche Hospital, Abu Dhabi 3788, United Arab Emirates
| | - Zenab Farooq
- College of Medicine and Health Sciences, Khalifa University, Abu Dhabi 127788, United Arab Emirates
| | - Howaida Khair
- Department of Obstetrics & Gynecology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain 15551, United Arab Emirates
| | - Kornelia Zaręba
- Department of Obstetrics & Gynecology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain 15551, United Arab Emirates
| | - Nahid Al Dhahouri
- Department of Genetics and Genomics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain 15551, United Arab Emirates
| | - Anjana Raj
- Department of Genetics and Genomics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain 15551, United Arab Emirates
| | - Roger S Foo
- Cardiovascular Research Institute, National University Healthcare Systems, Singapore 117599, Singapore
- Genome Institute of Singapore, Agency for Science, Technology and Research, Singapore 138672, Singapore
| | - Bassam R Ali
- Department of Genetics and Genomics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain 15551, United Arab Emirates
| | - Fatma Al Jasmi
- Department of Genetics and Genomics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain 15551, United Arab Emirates
| | - Nadia Akawi
- Department of Genetics and Genomics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain 15551, United Arab Emirates
- Division of Cardiovascular Medicine, University of Oxford, Oxford OX3 9DU, UK
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Autofluorescence Imaging of the Skin Is an Objective Non-Invasive Technique for Diagnosing Pseudoxanthoma Elasticum. Diagnostics (Basel) 2021; 11:diagnostics11020260. [PMID: 33567497 PMCID: PMC7915757 DOI: 10.3390/diagnostics11020260] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/03/2021] [Accepted: 02/04/2021] [Indexed: 01/05/2023] Open
Abstract
Pseudoxanthoma elasticum (PXE) is a rare multisystemic autosomal recessive connective tissue disease. In most cases, skin manifestations of PXE are the first to develop, followed later by severe ocular and cardiovascular complications. In our present study, in addition to dermoscopy, we introduced novel techniques, autofluorescence (AF) and diffuse reflectance (DR) imaging for the assessment of affected skin sites of five PXE patients. PXE-affected skin areas in most skin sites showed a previously observed pattern upon dermoscopic examination. With the novel imaging, PXE-affected skin lesions displayed high AF intensity. During our measurements, significantly higher mean, minimum and maximum AF intensity values were found in areas of PXE-affected skin when compared to uninvolved skin. Conversely, images acquired with the use of 660 and 940 nm illumination showed no mentionable difference. Our results demonstrate that AF imaging may be used in the in vivo diagnostics and quantification of the severity of the skin lesions of PXE patients. In addition, it is a safe, fast and cost-effective diagnostic method. AF imaging may be also used to objectively monitor the efficacy of the possible novel therapeutic approaches of PXE in the future.
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Gulec S, Urganci N, Aydin O, Kalyoncu D. A rare case of massive gastrointestinal bleeding. GAZZETTA MEDICA ITALIANA ARCHIVIO PER LE SCIENZE MEDICHE 2019. [DOI: 10.23736/s0393-3660.18.03886-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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[Vascular calcification in pseudoxanthoma elasticum in children]. JOURNAL DE MÉDECINE VASCULAIRE 2017; 42:333-337. [PMID: 29203039 DOI: 10.1016/j.jdmv.2017.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 08/29/2017] [Indexed: 11/23/2022]
Abstract
INTRODUCTION Vascular calcifications are associated with several diseases that affect vascular connective tissue and skin and cause considerable morbidity and mortality. The prototype of these conditions is pseudoxanthoma elasticum. We report, in this study, 4 pediatric cases of vascular calcifications diagnosed as elastic pseudoxanthoma. OBSERVATIONS These 4 children were 2-11 years old and presented variable clinical features. Vascular involvement and arterial hypertension was observed in all patients, skin involvement in 2 cases, gastrointestinal involvement in 2 cases, neurological impairment in one case, and cardiac involvement in one case. Demonstration of ABCC6 gene mutations provided diagnostic confirmation in all cases. CONCLUSION Pseudoxanthoma elasticum is a rare genetic disease, which can lead to many complications. Appropriate knowledge and early diagnosis are essential.
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