Associations of AT(N) biomarkers with neuropsychiatric symptoms in preclinical Alzheimer’s disease and cognitively unimpaired individuals
| العنوان: | Associations of AT(N) biomarkers with neuropsychiatric symptoms in preclinical Alzheimer’s disease and cognitively unimpaired individuals |
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| المؤلفون: | Zahinoor Ismail, Nagaendran Kandiah, Serge Gauthier, Pedro Rosa-Neto, Hui Chiew, Kok Pin Ng |
| المصدر: | Translational Neurodegeneration, Vol 10, Iss 1, Pp 1-14 (2021) Translational Neurodegeneration |
| بيانات النشر: | Springer Science and Business Media LLC, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Oncology, medicine.medical_specialty, Neurology, Cognitive Neuroscience, Prodromal Symptoms, Mild behavioral impairment, tau Proteins, Review, Disease, lcsh:RC346-429, Amyloid beta-Protein Precursor, 03 medical and health sciences, Cellular and Molecular Neuroscience, 0302 clinical medicine, Atrophy, Alzheimer Disease, Internal medicine, mental disorders, medicine, Humans, Cognitive Dysfunction, Amyloid-β, Hyperphosphorylated tau, Neurodegeneration, Cognitive decline, Pathological, health care economics and organizations, Preclinical Alzheimer’s disease, lcsh:Neurology. Diseases of the nervous system, 030214 geriatrics, business.industry, Mental Disorders, technology, industry, and agriculture, medicine.disease, Pathophysiology, Neuropsychiatric symptoms, Anxiety, Neurology (clinical), Nervous System Diseases, medicine.symptom, business, 030217 neurology & neurosurgery |
| الوصف: | The development of in vivo biomarkers of Alzheimer’s disease (AD) has advanced the diagnosis of AD from a clinical syndrome to a biological construct. The preclinical stage of AD continuum is defined by the identification of AD biomarkers crossing the pathological threshold in cognitively unimpaired individuals. While neuropsychiatric symptoms (NPS) are non-cognitive symptoms that are increasingly recognized as early manifestations of AD, the associations of NPS with AD pathophysiology in preclinical AD remain unclear. Here, we review the associations between NPS and AD biomarkers amyloid-β (Aβ), tau and neurodegeneration in preclinical AD and cognitively-unimpaired individuals in 19 eligible English-language publications (8 cross-sectional studies, 10 longitudinal, 1 both cross-sectional and longitudinal). The cross-sectional studies have consistently shown that NPS, particularly depressive and anxiety symptoms, are associated with higher Aβ. The longitudinal studies have suggested that greater NPS are associated with higher Aβ and cognitive decline in cognitively unimpaired subjects over time. However, most of the studies have either cross-sectionally or longitudinally shown no association between NPS and tau pathology. For the association of NPS and neurodegeneration, two studies have shown that the cerebrospinal fluid total-tau is linked to longitudinal increase in NPS and that the NPS may predict longitudinal metabolic decline in preclinical AD, respectively. However, evidence for the association between atrophy and NPS in preclinical AD is less consistent. Therefore, future longitudinal studies with well-designed methodologies and NPS measurements are required not only to determine the relationship among AT(N) biomarkers, NPS and cognitive decline, but also to elucidate the contribution of comorbid pathology to preclinical AD. |
| تدمد: | 2047-9158 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0ee8befeadc8acd1b77578bf1b2b25cTest https://doi.org/10.1186/s40035-021-00236-3Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....c0ee8befeadc8acd1b77578bf1b2b25c |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20479158 |
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