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Cerca | Lliura | Ajuda | Servei de Biblioteques | Sobre el DDD | Català English Español | |||||||||
| Pàgina inicial > Articles > Articles publicats > Mechanisms Involved in Epileptogenesis in Alzheimer's Disease and Their Therapeutic Implications |
| Data: | 2022 |
| Resum: | Epilepsy and Alzheimer's disease (AD) incidence increases with age. There are recip-rocal relationships between epilepsy and AD. Epilepsy is a risk factor for AD and, in turn, AD is an independent risk factor for developing epilepsy in old age, and abnormal AD biomarkers in PET and/or CSF are frequently found in late-onset epilepsies of unknown etiology. Accordingly, epilepsy and AD share pathophysiological processes, including neuronal hyperexcitability and an early excitatory-inhibitory dysregulation, leading to dysfunction in the inhibitory GABAergic and excitatory glutamatergic systems. Moreover, both β-amyloid and tau protein aggregates, the anato-mopathological hallmarks of AD, have proepileptic effects. Finally, these aggregates have been found in the resection material of refractory temporal lobe epilepsies, suggesting that epilepsy leads to amyloid and tau aggregates. Some epileptic syndromes, such as medial temporal lobe epilepsy, share structural and functional neuroimaging findings with AD, leading to overlapping symptomatology, such as episodic memory deficits and toxic synergistic effects. In this respect, the existence of epilepti-form activity and electroclinical seizures in AD appears to accelerate the progression of cognitive decline, and the presence of cognitive decline is much more prevalent in epileptic patients than in elderly patients without epilepsy. Notwithstanding their clinical significance, the diagnosis of clinical seizures in AD is a challenge. Most are focal and manifest with an altered level of consciousness without motor symptoms, and are often interpreted as cognitive fluctuations. Finally, despite the frequent association of epilepsy and AD dementia, there is a lack of clinical trials to guide the use of antiseizure medications (ASMs). There is also a potential role for ASMs to be used as disease-modifying drugs in AD. |
| Ajuts: | European Commission 965422 Ministerio de Economía y Competitividad PI14/01126 Instituto de Salud Carlos III PI17/01019 Instituto de Salud Carlos III PI18/00335 Instituto de Salud Carlos III CM19/00066 Agència de Gestió d'Ajuts Universitaris i de Recerca SLT006/17/00119 |
| Nota: | Altres ajuts: Fondo de Investigaciones Sanitario (FIS); National Institutes of Health (1R01AG056850-01A1, R21AG056974, R01AG061566); Fundació La Marató de TV3 (20141210); Sociedad Catalana de Neurología (SCN-2020 to MCI); Fundació Catalana Síndrome de Down; Fundació Víctor Grífols i Luca; Fundación Tatiana Pérez de Guzmán el Bueno. |
| Drets: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. |
| Llengua: | Anglès |
| Document: | Article de revisió ; recerca ; Versió publicada |
| Matèria: | Seizures ; Epilepsy ; Alzheimer's disease ; Antiseizure medications ; Hyperexcitability |
| Publicat a: | International journal of molecular sciences, Vol. 23 Núm. 8 (April 2022) , p. 4307, ISSN 1422-0067 |
20 p, 2.1 MB |