Normal ageing and the brain

Journal/Book: Irish J Psychol Med. 1998; 15: Irish J Psychol Medicine, Brendans Hospital, Rathdown Rd, Dublin 7, Ireland. Irish Inst Psychological Medicine Ltd. 26-28.

Abstract: Interest in the psychiatric aspects of old age predated the institution of geriatrics as a clinical discipline, but the systematic study of the ageing brain only began in the second half of this century when an ageing population presented a global numerical challenge to society. In the senescent cerebral cortex, though the number of neurons is not reduced, cell shrinkage results in synaptic impoverishment with consequent cognitive impairment, Recent advances in imaging techniques, combined with burgeoning knowledge of neurobiological structure and function, have increased our understanding of the ageing processes in the human brain and permit an optimistic approach in the application of the newer insights into neuropsychology and geriatric psychiatry.

Note: Article Breathnach CS, Univ Dublin Trinity Coll, Dept Human Anat & Physiol, Earlsfort Terrace, Dublin 2, IRELAND

Keyword(s): senescence; brain ageing; brain imaging; lipofuscin; steroids; cascade hypothesis; ALZHEIMERS-DISEASE; MITOCHONDRIAL-DNA; NEUROLOGY; CANCER; WEAR; TEAR; LOSE

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