Self-Preservation in Individuals with Alzheimer's Disease

Author(s):  
Sam Fazio ◽  
David B Mitchell

The purpose of this chapter is to highlight empirical evidence for the presence and persistence of self in individuals with Alzheimer's disease. First, the authors review their previous findings (Fazio & Mitchell, 2009) that revealed the persistence of self via language usage and delayed visual self-recognition data. Second, the authors present previously unpublished data demonstrating that both level of impairment (mild or moderate) and setting (residential or day center) are related to language usage. Third, the authors review the most recent literature about the self in individuals with Alzheimer's disease, as well as discuss social positioning and its impact on individualized care.

2013 ◽  
Vol 10 (10) ◽  
pp. 1107-1117 ◽  
Author(s):  
Jennifer Lalanne ◽  
Johanna Rozenberg ◽  
Pauline Grolleau ◽  
Pascale Piolino

1997 ◽  
Vol 3 (2) ◽  
pp. 195-198 ◽  
Author(s):  
SANDRA M. BOLOGNA ◽  
CAMERON J. CAMP

Some persons with Alzheimer's disease (AD) lose the ability to recognize themselves, as when they cannot overtly recognize their reflection in a mirror. There is evidence, however, that covert or unconscious self-recognition might be displayed in such individuals. In this study, 3 persons with AD lacking the ability to overtly self-recognize demonstrated multiple instances of unconscious or covert self-recognition. A variety of interventions, inspired by research with prosopagnosics, was implemented to remediate this loss. Interventions enabled all participants to exhibit overt self-recognition, though each did so with the aid of a different intervention. In addition, successful overt self-recognition required a verbal probe and was entirely intervention-dependent: When the intervention was removed, overt self-recognition was lost. Results support a dissociation between explicit–declarative versus implicit–nondeclarative memory systems, and extends this dissociation into the realm of self-recognition in AD. (JINS, 1997, 3, 195–198.)


RSC Advances ◽  
2016 ◽  
Vol 6 (88) ◽  
pp. 85058-85062 ◽  
Author(s):  
Mayaka Maeno ◽  
Hiroya Kondo ◽  
Etsuko Tokunaga ◽  
Norio Shibata

Catalytic asymmetric synthesis of fluorinated donepezil, a promising new therapeutic agent for Alzheimer's disease, was achieved.


2016 ◽  
Vol 94 (10) ◽  
pp. 833-841 ◽  
Author(s):  
Zohreh Amini ◽  
Mohammad Hossein Fatemi ◽  
Arvi Rauk

The region encompassing residues 13–23 of the amyloid beta peptide (Aβ(13–23)) of Alzheimer’s disease is the self-recognition site that initiates toxic oligomerization and fibrillization. A number of pseudopeptides have been designed to bind to Aβ(13–23) and been computationally shown to do so with high affinity. More interactions are available in full-length Aβ than are available in the shorter peptide. We describe herein a study by molecular dynamics (MD) of nine distinct complexes formed by one such pseudopeptide, SGA1, with full-length beta amyloid, Aβ(1–42). The relative stabilities of the Aβ–SGA1 complexes were estimated by a combination of MD and ab initio methods. The most stable complex, designated AB1, was found to be one in which SGA1 is bound to the self-recognition site of Aβ(1–42) in an antiparallel β-sheet fashion. Another complex, designated AB3, also involved SGA1 binding to the self-recognition region of Aβ(1–42), albeit with lower affinity. In both AB1 and AB3, SGA1 formed antiparallel β-sheets but to opposite edges of Aβ. A complex, AB4, with similar stability to AB3, was found with a parallel β-sheet in the self-recognition site. A fourth complex, AB7, also with similar stability, formed a parallel β-sheet in the hydrophobic central region of Aβ. In all cases, complexation of SGA1 induced extensive β-sheet structure in Aβ(1–42).


2020 ◽  
Vol 73 (3) ◽  
pp. 819-832 ◽  
Author(s):  
Xiaoni Wang ◽  
Yu Sun ◽  
Taoran Li ◽  
Yanning Cai ◽  
Ying Han

2013 ◽  
Vol 27 (1) ◽  
pp. 69-78 ◽  
Author(s):  
Pénélope Martinelli ◽  
Adèle Anssens ◽  
Marco Sperduti ◽  
Pascale Piolino

2021 ◽  
Vol 17 (S6) ◽  
Author(s):  
Jose Manuel Valera‐Bermejo ◽  
Micaela Mitolo ◽  
Chiara Cerami ◽  
Alessandra Dodich ◽  
Matteo De Marco ◽  
...  

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