Age at onset and language disturbances in Alzheimer's disease. 1998

T Imamura, and Y Takatsuki, and M Fujimori, and N Hirono, and Y Ikejiri, and T Shimomura, and M Hashimoto, and H Yamashita, and E Mori
Division of Clinical Neurosciences, Hyogo Institute for Aging Brain and Cognitive Disorders, Himeji, Japan. imamura@hiabcd.go.jp

This study examined the effect of age at symptom onset of Alzheimer's disease (AD) on the pattern of language disturbance. We assessed 150 consecutive patients with a clinical diagnosis of mild-to-moderate AD using the Western Aphasia Battery and a 100-item picture-naming test. A multivariate linear regression analysis examined the effect of age at onset after controlling for gender, education, severity of dementia and duration of the disease. Patients with early onset performed significantly worse than did patients with late onset on the word comprehension and sequential commands subtests. On the other hand, late-onset patients performed more poorly than early-onset patients on the picture-naming test in a subgroup with mild language deficits. However, the trend disappeared in other subgroups with more degraded language function. We consider that the concomitant effects of normal aging worsened the picture-naming deficits in the late-onset patients, and the rapid decline of naming ability in the early-onset patients masked the aging effect with the progression of language deficits. The deterioration of word comprehension and the rapid decline of naming ability are the characteristics of early-onset patients. The different patterns of language deficits between early- and late-onset patients may correspond to the genetic heterogeneity of AD.

UI MeSH Term Description Entries
D008297 Male Males
D009483 Neuropsychological Tests Tests designed to assess neurological function associated with certain behaviors. They are used in diagnosing brain dysfunction or damage and central nervous system disorders or injury. Aphasia Tests,Cognitive Test,Cognitive Testing,Cognitive Tests,Memory for Designs Test,Neuropsychological Testing,AX-CPT,Behavioral Assessment of Dysexecutive Syndrome,CANTAB,Cambridge Neuropsychological Test Automated Battery,Clock Test,Cognitive Function Scanner,Continuous Performance Task,Controlled Oral Word Association Test,Delis-Kaplan Executive Function System,Developmental Neuropsychological Assessment,Hooper Visual Organization Test,NEPSY,Neuropsychologic Tests,Neuropsychological Test,Paced Auditory Serial Addition Test,Repeatable Battery for the Assessment of Neuropsychological Status,Rey-Osterrieth Complex Figure,Symbol Digit Modalities Test,Test of Everyday Attention,Test, Neuropsychological,Tests, Neuropsychological,Tower of London Test,Neuropsychologic Test,Test, Cognitive,Testing, Cognitive,Testing, Neuropsychological,Tests, Cognitive
D010364 Pattern Recognition, Visual Mental process to visually perceive a critical number of facts (the pattern), such as characters, shapes, displays, or designs. Recognition, Visual Pattern,Visual Pattern Recognition
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D000375 Aging The gradual irreversible changes in structure and function of an organism that occur as a result of the passage of time. Senescence,Aging, Biological,Biological Aging
D000544 Alzheimer Disease A degenerative disease of the BRAIN characterized by the insidious onset of DEMENTIA. Impairment of MEMORY, judgment, attention span, and problem solving skills are followed by severe APRAXIAS and a global loss of cognitive abilities. The condition primarily occurs after age 60, and is marked pathologically by severe cortical atrophy and the triad of SENILE PLAQUES; NEUROFIBRILLARY TANGLES; and NEUROPIL THREADS. (From Adams et al., Principles of Neurology, 6th ed, pp1049-57) Acute Confusional Senile Dementia,Alzheimer's Diseases,Dementia, Alzheimer Type,Dementia, Senile,Presenile Alzheimer Dementia,Senile Dementia, Alzheimer Type,Alzheimer Dementia,Alzheimer Disease, Early Onset,Alzheimer Disease, Late Onset,Alzheimer Sclerosis,Alzheimer Syndrome,Alzheimer Type Senile Dementia,Alzheimer's Disease,Alzheimer's Disease, Focal Onset,Alzheimer-Type Dementia (ATD),Dementia, Presenile,Dementia, Primary Senile Degenerative,Early Onset Alzheimer Disease,Familial Alzheimer Disease (FAD),Focal Onset Alzheimer's Disease,Late Onset Alzheimer Disease,Primary Senile Degenerative Dementia,Senile Dementia, Acute Confusional,Alzheimer Dementias,Alzheimer Disease, Familial (FAD),Alzheimer Diseases,Alzheimer Type Dementia,Alzheimer Type Dementia (ATD),Alzheimers Diseases,Dementia, Alzheimer,Dementia, Alzheimer-Type (ATD),Familial Alzheimer Diseases (FAD),Presenile Dementia,Sclerosis, Alzheimer,Senile Dementia
D000849 Anomia A language dysfunction characterized by the inability to name people and objects that are correctly perceived. The individual is able to describe the object in question, but cannot provide the name. This condition is associated with lesions of the dominant hemisphere involving the language areas, in particular the TEMPORAL LOBE. (From Adams et al., Principles of Neurology, 6th ed, p484) Aphasia, Amnesic,Aphasia, Anomic,Aphasia, Nominal,Color Anomia,Dysnomia,Anomic Dysphasia,Nominal Dysphasia,Amnesic Aphasia,Anomia, Color,Anomias, Color,Anomic Aphasia,Anomic Dysphasias,Color Anomias,Dysnomias,Dysphasia, Anomic,Dysphasia, Nominal,Dysphasias, Anomic,Dysphasias, Nominal,Nominal Aphasia,Nominal Dysphasias
D001037 Aphasia A cognitive disorder marked by an impaired ability to comprehend or express language in its written or spoken form. This condition is caused by diseases which affect the language areas of the dominant hemisphere. Clinical features are used to classify the various subtypes of this condition. General categories include receptive, expressive, and mixed forms of aphasia. Aphasia, Acquired,Dysphasia,Word Deafness,Alogia,Anepia,Aphasia, Ageusic,Aphasia, Auditory Discriminatory,Aphasia, Commisural,Aphasia, Functional,Aphasia, Global,Aphasia, Graphomotor,Aphasia, Intellectual,Aphasia, Mixed,Aphasia, Post-Ictal,Aphasia, Post-Traumatic,Aphasia, Progressive,Aphasia, Semantic,Aphasia, Syntactical,Dejerine-Lichtheim Phenomenon,Dysphasia, Global,Lichtheim's Sign,Logagnosia,Logamnesia,Logasthenia,Acquired Aphasia,Ageusic Aphasia,Ageusic Aphasias,Alogias,Anepias,Aphasia, Post Ictal,Aphasia, Post Traumatic,Aphasias, Commisural,Auditory Discriminatory Aphasia,Auditory Discriminatory Aphasias,Commisural Aphasia,Commisural Aphasias,Deafness, Word,Dejerine Lichtheim Phenomenon,Discriminatory Aphasia, Auditory,Discriminatory Aphasias, Auditory,Functional Aphasia,Functional Aphasias,Global Aphasia,Global Aphasias,Global Dysphasia,Global Dysphasias,Graphomotor Aphasia,Graphomotor Aphasias,Intellectual Aphasia,Intellectual Aphasias,Lichtheim Sign,Lichtheims Sign,Logagnosias,Logamnesias,Logasthenias,Mixed Aphasia,Mixed Aphasias,Phenomenon, Dejerine-Lichtheim,Post-Ictal Aphasia,Post-Ictal Aphasias,Post-Traumatic Aphasia,Post-Traumatic Aphasias,Progressive Aphasia,Progressive Aphasias,Semantic Aphasia,Semantic Aphasias,Sign, Lichtheim's,Syntactical Aphasia,Syntactical Aphasias

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