Tear Biomarkers and Alzheimer’s Disease

Alzheimer’s disease (AD) is an age-related progressive neurodegenerative brain disorder that represents the most common type of dementia. It poses a significant diagnostic challenge that requires timely recognition and treatment. Currently, there is no effective therapy for AD; however, certain medi...

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Main Authors: Snježana Kaštelan, Marijana Braš, Neda Pjevač, Ivana Bakija, Zora Tomić, Nada Pjevač Keleminić, Antonela Gverović Antunica
Format: Article
Language:English
Published: MDPI AG 2023-08-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/24/17/13429
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author Snježana Kaštelan
Marijana Braš
Neda Pjevač
Ivana Bakija
Zora Tomić
Nada Pjevač Keleminić
Antonela Gverović Antunica
author_facet Snježana Kaštelan
Marijana Braš
Neda Pjevač
Ivana Bakija
Zora Tomić
Nada Pjevač Keleminić
Antonela Gverović Antunica
author_sort Snježana Kaštelan
collection DOAJ
description Alzheimer’s disease (AD) is an age-related progressive neurodegenerative brain disorder that represents the most common type of dementia. It poses a significant diagnostic challenge that requires timely recognition and treatment. Currently, there is no effective therapy for AD; however, certain medications may slow down its progression. The discovery of AD biomarkers, namely, magnetic resonance imaging, positron emission tomography and cerebrospinal fluid molecules (amyloid-β and tau) has advanced our understanding of this disease and has been crucial for identifying early neuropathologic changes prior to clinical changes and cognitive decline. The close interrelationship between the eye and the brain suggests that tears could be an interesting source of biomarkers for AD; however, studies in this area are limited. The identification of biomarkers in tears will enable the development of cost-effective, non-invasive methods of screening, diagnosis and disease monitoring. In order to use tears as a standard method for early and non-invasive diagnosis of AD, future studies need to be conducted on a larger scale.
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spelling doaj.art-91664065e7584c019bd07df8f1335ee82023-11-19T08:17:10ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672023-08-0124171342910.3390/ijms241713429Tear Biomarkers and Alzheimer’s DiseaseSnježana Kaštelan0Marijana Braš1Neda Pjevač2Ivana Bakija3Zora Tomić4Nada Pjevač Keleminić5Antonela Gverović Antunica6Department of Ophthalmology, Clinical Hospital Dubrava, School of Medicine, University of Zagreb, 10000 Zagreb, CroatiaCentre for Palliative Medicine, Medical Ethics and Communication Skills, School of Medicine, University of Zagreb, 10000 Zagreb, CroatiaDepartment of Medical Statistics, Epidemiology and Medical Informatics, School of Medicine, University of Zagreb, 10000 Zagreb, CroatiaDepartment of Integrative Psychiatry, Psychiatry Hospital “Sveti Ivan”, 10090 Zagreb, CroatiaHealth Centre of the Croatian Department of Internal Affairs, 10000 Zagreb, CroatiaDepartment of Family Medicine, Health Centre Zagreb-Centar, School of Medicine, University of Zagreb, 10000 Zagreb, CroatiaDepartment of Ophthalmology, General Hospital Dubrovnik, University of Dubrovnik, 20000 Dubrovnik, CroatiaAlzheimer’s disease (AD) is an age-related progressive neurodegenerative brain disorder that represents the most common type of dementia. It poses a significant diagnostic challenge that requires timely recognition and treatment. Currently, there is no effective therapy for AD; however, certain medications may slow down its progression. The discovery of AD biomarkers, namely, magnetic resonance imaging, positron emission tomography and cerebrospinal fluid molecules (amyloid-β and tau) has advanced our understanding of this disease and has been crucial for identifying early neuropathologic changes prior to clinical changes and cognitive decline. The close interrelationship between the eye and the brain suggests that tears could be an interesting source of biomarkers for AD; however, studies in this area are limited. The identification of biomarkers in tears will enable the development of cost-effective, non-invasive methods of screening, diagnosis and disease monitoring. In order to use tears as a standard method for early and non-invasive diagnosis of AD, future studies need to be conducted on a larger scale.https://www.mdpi.com/1422-0067/24/17/13429tearsbiomarkersAlzheimer’s diseasedementianeurocognitive disorderearly diagnosis
spellingShingle Snježana Kaštelan
Marijana Braš
Neda Pjevač
Ivana Bakija
Zora Tomić
Nada Pjevač Keleminić
Antonela Gverović Antunica
Tear Biomarkers and Alzheimer’s Disease
International Journal of Molecular Sciences
tears
biomarkers
Alzheimer’s disease
dementia
neurocognitive disorder
early diagnosis
title Tear Biomarkers and Alzheimer’s Disease
title_full Tear Biomarkers and Alzheimer’s Disease
title_fullStr Tear Biomarkers and Alzheimer’s Disease
title_full_unstemmed Tear Biomarkers and Alzheimer’s Disease
title_short Tear Biomarkers and Alzheimer’s Disease
title_sort tear biomarkers and alzheimer s disease
topic tears
biomarkers
Alzheimer’s disease
dementia
neurocognitive disorder
early diagnosis
url https://www.mdpi.com/1422-0067/24/17/13429
work_keys_str_mv AT snjezanakastelan tearbiomarkersandalzheimersdisease
AT marijanabras tearbiomarkersandalzheimersdisease
AT nedapjevac tearbiomarkersandalzheimersdisease
AT ivanabakija tearbiomarkersandalzheimersdisease
AT zoratomic tearbiomarkersandalzheimersdisease
AT nadapjevackeleminic tearbiomarkersandalzheimersdisease
AT antonelagverovicantunica tearbiomarkersandalzheimersdisease