Phenotypic profile of early-onset familial Alzheimer's disease caused by presenilin-1 E280A mutation.
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Phenotypic profile of early-onset familial Alzheimer's disease caused by presenilin-1 E280A mutation. / Sepulveda-Falla, Diego; Glatzel, Markus; Lopera, Francisco.
In: J ALZHEIMERS DIS, Vol. 32, No. 1, 1, 2012, p. 1-12.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - Phenotypic profile of early-onset familial Alzheimer's disease caused by presenilin-1 E280A mutation.
AU - Sepulveda-Falla, Diego
AU - Glatzel, Markus
AU - Lopera, Francisco
PY - 2012
Y1 - 2012
N2 - Presenilin 1 (PS1) mutations are the most common cause of early-onset familial Alzheimer's disease (EOFAD). They show a common phenotypic profile characterized by early age of onset, severe dementia and distinct neurodegeneration. The largest population of EOFAD carries the E280A mutation in PS1 and resides in Antioquia, Colombia, currently comprising around 5,000 individuals. Carriers start showing memory impairment in the third decade of life, followed by progressive impairment of language and other cognitive processes. They reach mild cognitive impairment around 45 and dementia around 50 years of age. There is some phenotypic variability among the carriers of this single PS1 mutation. Some patients present with epilepsy, verbal impairment, and cerebellar ataxia. Neuropathologically, PS1 E280A cases show pronounced brain atrophy, severe amyloid-? pathology, distinct hyperphosphorylated tau-related pathology, and cerebellar damage. The earliest event identified by functional magnetic imaging resonance is hyperactivation within the right anterior hippocampus around 33 years of age. This well-studied population with a clear pre-clinical profile and wide phenotypic variability in age of onset and clinical presentation is ideally suited for clinical trials and to study molecular mechanisms of Alzheimer's disease.
AB - Presenilin 1 (PS1) mutations are the most common cause of early-onset familial Alzheimer's disease (EOFAD). They show a common phenotypic profile characterized by early age of onset, severe dementia and distinct neurodegeneration. The largest population of EOFAD carries the E280A mutation in PS1 and resides in Antioquia, Colombia, currently comprising around 5,000 individuals. Carriers start showing memory impairment in the third decade of life, followed by progressive impairment of language and other cognitive processes. They reach mild cognitive impairment around 45 and dementia around 50 years of age. There is some phenotypic variability among the carriers of this single PS1 mutation. Some patients present with epilepsy, verbal impairment, and cerebellar ataxia. Neuropathologically, PS1 E280A cases show pronounced brain atrophy, severe amyloid-? pathology, distinct hyperphosphorylated tau-related pathology, and cerebellar damage. The earliest event identified by functional magnetic imaging resonance is hyperactivation within the right anterior hippocampus around 33 years of age. This well-studied population with a clear pre-clinical profile and wide phenotypic variability in age of onset and clinical presentation is ideally suited for clinical trials and to study molecular mechanisms of Alzheimer's disease.
KW - Adult
KW - Humans
KW - Aged
KW - Middle Aged
KW - Phenotype
KW - Age of Onset
KW - Heterozygote
KW - Brain/pathology
KW - Cognition/physiology
KW - Presenilin-1/genetics
KW - Alzheimer Disease/epidemiology/genetics/pathology/psychology
KW - Amyloid beta-Protein Precursor/genetics
KW - Colombia/epidemiology
KW - Mutation/genetics/physiology
KW - Presenilin-2/genetics
KW - Adult
KW - Humans
KW - Aged
KW - Middle Aged
KW - Phenotype
KW - Age of Onset
KW - Heterozygote
KW - Brain/pathology
KW - Cognition/physiology
KW - Presenilin-1/genetics
KW - Alzheimer Disease/epidemiology/genetics/pathology/psychology
KW - Amyloid beta-Protein Precursor/genetics
KW - Colombia/epidemiology
KW - Mutation/genetics/physiology
KW - Presenilin-2/genetics
M3 - SCORING: Journal article
VL - 32
SP - 1
EP - 12
JO - J ALZHEIMERS DIS
JF - J ALZHEIMERS DIS
SN - 1387-2877
IS - 1
M1 - 1
ER -