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Trial of a Brain Preservation Diet in Preventing Cognitive Decline in Old Age Hostel Residents

2014-08-27 03:13:21 | BioPortfolio

Summary

Dementia is a major cause of disabilities in older people. If the onset of dementia can be delayed by preventive measures, the burden of the disease to the society can be greatly reduced. It is now recognised that dietary factors are related to the incidence of dementia. High intake of vegetables, fruit and fish are protective while high intake of saturated fat and salt (via its effect on blood pressure) are detrimental to risk of dementia.

The investigators therefore propose to perform a randomized controlled trial of dietetic interventions in old age hostels in Hong Kong. Twelve old age hostels under the Tung Wah Group will be randomly assigned to intervention or control groups. The intervention group will receive dietetic interventions by 2 weekly small group discussion with the residents, modification of menu and publicity. The daily diet to be implemented consists of the following principles: 1. fresh fruit 2 portions, 2. vegetables 4 portions, 3. fish, 4. white meat, 5. sodium intake < 100 mmol/L, 6. six glasses of water. In the control group. The dietician will give two health talks and advice on menu only.

The primary outcome is the incidence of questionable dementia in those who are normal at baseline and the incidence of dementia in those who have questionable dementia at baseline. The categorisation will be performed by trained research assistant after administering a structured questionnaire. Change in mini-mental examination score and SF36 quality of life scores are secondary outcomes. Food records over three days for each subject are recorded every three months, to ensure that the brain preservation diet has been adhered to. Half of the subjects will be randomly assigned to have blood and urine tests at baseline and at one year, in order to examine the health effects of dieting.

Study Design

Allocation: Non-Randomized, Intervention Model: Parallel Assignment, Masking: Single Blind (Outcomes Assessor), Primary Purpose: Prevention

Conditions

Cognitive Decline

Intervention

"brain preservation' diet

Location

The Chinese University of Hong Kong
Hong Kong
China

Status

Completed

Source

Chinese University of Hong Kong

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:13:21-0400

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Medical and Biotech [MESH] Definitions

A progressive form of dementia characterized by the global loss of language abilities and initial preservation of other cognitive functions. Fluent and nonfluent subtypes have been described. Eventually a pattern of global cognitive dysfunction, similar to ALZHEIMER DISEASE, emerges. Pathologically, there are no Alzheimer or PICK DISEASE like changes, however, spongiform changes of cortical layers II and III are present in the TEMPORAL LOBE and FRONTAL LOBE. (From Brain 1998 Jan;121(Pt 1):115-26)

Unexplained neurologic condition characterized by episodes of atonic seizures, convulsions or staring spells with further cognitive decline.

A diet that contains limited amounts of CARBOHYDRATES. This is in distinction to a regular DIET.

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