Nutritional factors relevant to Alzheimer’s disease

Decline of instrumental activities of daily living is a risk factor for nutritional deterioration in older adults: a prospective cohort study

BACKGROUND

The association between functional capacity and the subsequent risk of nutritional deterioration is yet to be understood. The purpose of this study was to elucidate the relationship between functional capacity, comprising instrumental activities of daily living (IADL), intellectual activity, and social function, and future decline in nutritional status.

METHODS

The current study is a two-year prospective cohort study. A total of 468 community-dwelling older adults without nutritional risks were enrolled. We used the Mini Nutritional Assessment Screening Form. Functional capacity, including IADL, intellectual activity, and social function, was assessed using the Tokyo Metropolitan Institute of Gerontology Index of Competence at baseline. The nutritional status was reassessed at a 2-year follow-up. Risk ratios (RR) of functional capacity for the incidence of nutritional decline were estimated.

RESULTS

Low functional capacity was significantly associated with future deterioration of nutritional status (RR 1.12, 95% confidence interval [CI] 1.02-1.25). Of the subdomains of functional capacity, IADL decline (adjusted RR 2.21, 95% CI 1.18-4.13) was an independent risk factor for the incidence of nutritional risk. Intellectual and social activities were not significant.

CONCLUSION

Decline in functional capacity, especially IADL, is a risk factor for future deterioration in nutritional status. Further studies are required to elucidate the effect of interventions for IADL decline on maintaining nutritional status in older adults.

Effects of Hand Exercise on Eating Action in Patients With Alzheimer's Disease

We aim to investigate whether a popular hand exercise could be used to improve the action of eating in patients with Alzheimer's disease (AD). A 6-month intervention was conducted in 60 patients with AD who live in a nursing home. They were divided into hand exercise and control groups. Patients of the control group maintained their daily routine. The improvement of Edinburgh Feeding Evaluation in Dementia scale in hand exercise group was significantly greater than in the control group ( P = .003). Significant differences in time of autonomous eating and time of simulated eating between patients in the hand exercise and control groups ( P < .05) were noted. The improvements in accuracy of eating action and coordination of eating action from baseline were significant in hand exercise group compared to the control group ( P = .020 and .014, respectively). Hand exercise is a safe and effective intervention to improve the feeding and eating of people with AD.

Effects of Acetylcholinesterase Inhibitors on Nutritional Status in Elderly Patients with Dementia: A 6-month Follow-up Study

OBJECTIVES

Nutritional status is one of the factors that affects disease progression, morbidity and mortality in elderly patients with dementia. The present study aimed to evaluate the effect of acetylcholinesterase inhibitor (AchEI) therapy on nutritional status and food intake in the elderly.

DESIGN, SETTING AND PARTICIPANTS

Newly diagnosed patients with dementia, who underwent comprehensive geriatric assessment (CGA) and were followed at regular intervals, were retrospectively evaluated. A total of 116 patients, who began to receive AchEI therapy and completed 6-month follow-up period under this treatment, were enrolled in the study.

MEASUREMENTS

Socio-demographic characteristics and data on comorbidity, polypharmacy, cognitive function, depression, activities of daily living and nutritional status (weight, Body Mass Index (BMI), Mini Nutritional Assessment (MNA)-Short Form) were recorded.

RESULTS

The mean age of the patients was 78.0±8.9 years. There was no significant difference between baseline and 6-month BMI, weight and MNA scores of dementia patients who received AchEI therapy (p>0.05). With regard to the relation between changes in BMI, weight and MNA on the 6th month versus baseline, and donepezil, rivastigmine and galantamine therapies, no difference was determined (p>0.05). However, no worsening in food intake was observed (kappa: 0.377). When the effects of each AchEI on food intake were compared, food intake in rivastigmine treated patients was not decreased as much as it was in galantamine or donepezil treated patients (p<0.05).

CONCLUSION

AchEI therapy has no unfavorable effect on nutritional status or weight in elderly patients with different types of dementia, but it seems that food intake is better in those treated by rivastigmine patch.

How does nutritional state change during a subacute admission? Findings and implications for practice

BACKGROUND/OBJECTIVES

Nutritional status influences patients' clinical and functional outcomes. The aims were to identify changes in nutritional state during subacute care and associated participant characteristics.

SUBJECTS/METHODS

A longitudinal study was undertaken with consecutive patients admitted to subacute care wards during a 3-month period. Participants were recruited under a waiver of consent to reflect the usual demographic. Change in classification (malnourished, at risk of malnutrition, well nourished) of the full Mini Nutritional Assessment (full MNA) between admission and discharge was the primary outcome. Weight (kg), mid-arm and calf circumference (cm) change were secondary outcomes. Hand grip strength (kg) and fat-free mass (kg) (assessed using bioelectrical impedance analysis) were measured for a consenting subgroup.

RESULTS

Participants (n=248, 36.7% male) had a median age of 80 years and a length of stay of 17 days. On admission, 29.1% were classified as malnourished. By discharge, nutritional classification remained stable for 62.0% of participants (n=132), declined for 10.3% (n=22) and improved for 27.7% (n=59, including 52.5% malnourished on admission). Impaired cognition (odds ratio (OR)=0.169, P=0.002) and higher full MNA score at admission (OR=0.870, P=0.001) reduced odds of improvement in full MNA. There was no change in hand grip strength (n=46), but there was a decline in mean fat-free mass (-1.1 kg, 95% confidence interval: -0.1 to -2.2 kg, P=0.043, n=24).

CONCLUSIONS

Multidisciplinary care supports the nutritional state of most patients admitted to subacute care. Those with cognitive impairments or at risk of malnutrition were less likely to demonstrate improvement and may benefit from more intensive or tailored nutritional care.

Accumulation of geriatric conditions is associated with poor nutritional status in dependent older people living in the community and in nursing homes

AIM

To clarify the association between nutritional status and the prevalence of geriatric conditions in dependent older adults.

METHODS

A cross-sectional observational study of dependent older adults aged 65years or older who were living either in the community (n = 511, mean age 81.2years) or in nursing homes (n = 587, mean age 85.2years) was carried out. Data included the participants' demographic characteristics, basic activities of daily living, Charlson Comorbidity Index and the prevalence of eight geriatric conditions (visual impairment, hearing impairment, falls, bladder control problems, cognitive impairment, impaired mobility, swallowing disturbance and loss of appetite). Nutritional status was assessed by the Mini Nutritional Assessment short form (MNA-SF).

RESULTS

Of 1098 participants, 21.4% (n = 235) were categorized as "malnourished", according to the MNA-SF classification. Participants in the "malnourished" group had a greater number of geriatric conditions than those in the other two groups. A higher prevalence of all the geriatric conditions except for falls was detected in the group with poorer nutritional status. Multivariate logistic regression analysis showed that malnutrition was associated with the number of geriatric conditions, but not with that of comorbidities, even after controlling for confounders.

CONCLUSIONS

Malnutrition was confirmed to have significant associations with geriatric conditions in dependent older adults.

The influence of nutritional supplement drinks on providing adequate calorie and protein intake in older adults with dementia

OBJECTIVES

Investigate the impact of the provision of ONS on protein and energy intake from food and ability to meet protein and calorie requirements in people with dementia.

DESIGN

After consent by proxy was obtained, participants took part in a cross over study comparing oral intake on an intervention day to an adjacent control day.

SETTING

The study occurred in Nursing homes and hospitalised settings.

PARTICIPANTS

Older adults with dementia over the age of 65 were recruited. 26 participants (aged 83.9+/-8.4years, MMSE 13.08+/-8.13) took part. Intervention (if any): On the intervention day nutritional supplement drinks were provided three times. Each drink provided 283.3+/-41.8 Kcal of energy and 13.8+/-4.7g of protein. Supplements were removed approximately 1 hour before meals were served and weighed waste (g) was obtained.

MEASUREMENTS

Intake of food consumed was determined on intervention and control days using the quartile method (none, quarter, half, three quarters, all) for each meal component.

RESULTS

More people achieved their energy and protein requirements with the supplement drink intervention with no sufficient impact on habitual food consumption.

CONCLUSION

Findings from these 26 participants with dementia indicate that supplement drinks may be beneficial in reducing the prevalence of malnutrition within the group as more people meet their nutritional requirements. As the provision of supplement drinks is also demonstrated to have an additive effect to consumption of habitual foods these can be used alongside other measures to also improve oral intake.

Malnutrition in the elderly and its relationship with other geriatric syndromes

BACKGROUND & AIMS

Age related decline in food intake is associated with various physiological, psychological and social factors. Our aim was to assess the nutritional status of our elderly patients and its association with other geriatric syndromes.

METHODS

In this cross-sectional population based study, Mini Nutritional Assessment (MNA) test was used to evaluate nutritional status of 413 elderly patients who were admitted to our outpatient clinic in the last 12 months. MNA test results were compared with the laboratory findings and established geriatric syndromes.

RESULTS

Poor nutritional status was found in 44% of the patients (n=181: 13% malnutrition, 31% malnutrition risk). Malnutrition rate was higher among those with subsequent hospitalization (n=122, 25% vs 8%). Patients with poor nutritional status had lower blood haemoglobin, serum total protein and albumin, and revealed more chronic diseases and geriatric syndromes (6 ± 2 vs 3 ± 2, p<0.0001). Patients with depression, fecal incontinence, decreased cognitive function and functional dependence showed poor nutritional status according to MNA test results.

CONCLUSIONS

Malnutrition rate of our patients was comparable with the previous data. Malnutrition risk showed positive correlation with the number of existing geriatric syndromes. Depression, dementia, functional dependence and multiple co-morbidities were associated with poor nutritional status.

Is it possible to increase weight and maintain the protein status of debilitated elderly residents of nursing homes?

BACKGROUND

The care of elderly persons in chronic care nursing wards is generally complicated by nutritional problems such as weight loss and worsening protein status. An inability or refusal of the patient to consume enough food often necessitates the use of expensive commercial formulas for nutritional support. The purpose of this study was to determine whether the use of an in-house (high-protein, milk-based) low-cost formula with added minerals and vitamins for total nutritional support would be effective in maintaining weight and protein status of patients in the long term.

METHODS

Participants were recruited from five nursing care units of a single geriatric facility. All residents who required formula feeding were followed prospectively. The formula was provided either as a pudding or a milkshake for oral feeding or as a liquid for tube feeding and served as the sole source of nutrition. Data were collected regarding the participants' weight (monthly), serum albumin level (periodically), and the manner of formula administration (oral, nasogastric, or gastrostomy tube).

RESULTS

One hundred forty-three participants who received this formula were followed for a maximum period of 6 years. Mean weight increased by 5 kg during the first year and remained stable thereafter. Those participants who died within 6 months had no increase in weight. The long-term mean serum albumin level of all participants was an acceptable 4 g/dL.

CONCLUSION

The long-term use of an inexpensive in-house formula for total nutritional support increased weight and maintained serum albumin levels in most of the chronically ill elderly nursing care patients who participated in the study.

Pyridoxine, ascorbic acid and thiamine in Alzheimer and comparison subjects

We compared the intake and functional levels of vitamins B6, C and B1 in 15 pairs of Alzheimer's disease and normal subjects. These were similar in both groups, except that B1 had lower functional values for the subjects with Alzheimer's disease. This suggests that it is unlikely that B6 or C could be used in the treatment of Alzheimer's disease. The role of B1 needs further exploration.