Sep 25, 2009

Age-associated cognitive decline

British Medical Bulletin
Ian J DearyJohn M Starr

Abstract

Age-associated cognitive decline-or normal (non-pathological, normative, usual) cognitive ageing-is an important human experience which differs in extent between individuals. The determinants of the differences in age-related cognitive decline are not fully understood. Progress in the field is taking place across many areas of biomedical and psychosocial sciences. The phenotype of normal cognitive ageing is well described. Some mental capabilities are well maintained into old age. From early adulthood, there are declines in mental domains such as processing speed, reasoning, memory and executive functions, some of which is underpinned by a decline in a general cognitive factor. There are contributions to understanding individual differences in normal cognitive ageing from genetics, general health and medical disorders such as atherosclerotic disease, biological processes such as inflammation, neurobiological changes, diet and lifestyle. Many of these effect sizes are small; some are poorly replicated; and in some cases, there is the possibility of reverse causation, with prior cognitive ability causing the supposed 'cause' of cognitive ability in old age. Genome-wide scans are a likely source to establish genetic contributions....Continue Reading

  • References33
  • Citations215

References

Mentioned in this Paper

Health Status
Diet
Blood Vessel
Senility
Cardiovascular Diseases
Age-associated Memory Impairment
Carotid Artery Diseases
Aging
Inflammation
Dyskinesia, Drug-Induced

Related Feeds

Aging Epidemiology

This feed focuses on epidemiology of aging and aging-related conditions, including Alzheimer’s disease, dementia, and age-associated cognitive impairment. Here is the latest research.

Aging Genetics (Keystone)

This feed focuses on aging epidemiology and genetic, epigenetic, and proteomic aspects underlying aging, as well as aging- associated biomarkers. Here the latest research in this domain.

Aging Genetics

This feed focuses on aging epidemiology and genetic, epigenetic, and proteomic aspects underlying aging, as well as aging- associated biomarkers. Here the latest research in this domain.

Age-related Dementia

Age-related dementia (Alzheimer's disease) results from the destructive impact of the pulse on cerebral vasculature. Evidence is reviewed that the neuropathology of the dementia is caused by the breakdown of small cerebral vessels (silent microbleeds), that the microbleeds result from pulse-induced damage to the cerebral vessels, and that pulse becomes increasingly destructive with age, because of the age-related stiffening of the aorta and great arteries, which causes an increase in the intensity of the pressure pulse. Discover the latest research on age-related dementia here.

Cardiovascular Inflammation

Inflammation plays a significant role in the development of cardiovascular diseases, an understanding of these endogenous processes is critical for evaluating the risks and potential treatment strategies. Discover the latest research on cardiovascular inflammation here.

Carotid Artery Diseases

Carotid artery disease is a group of pathological conditions of the carotid artery. Discover the latest research on carotid artery disease here.

Aging Epidemiology

This feed focuses on epidemiology of aging and aging-related conditions, including Alzheimer’s disease, dementia, and age-associated cognitive impairment. Here is the latest research.

Aging-Associated Metabolic Disorders

Age is associated with many metabolic disorders including cardiovascular diseases, type 2 diabetes, stroke and heart disease. The mediators in aging process have been suggested to play a part in the cellular processes responsible for these metabolic disorders. Here is the latest research on aging-associated metabolic disorders.