Attenuation of neuropsychiatric symptoms and caregiver burden in Alzheimer's disease by motor intervention: a controlled trial

Nutritional Modulation of the Gut-Brain Axis: A Comprehensive Review of Dietary Interventions in Depression and Anxiety Management

Mental health is an increasing topic of focus since more than 500 million people in the world suffer from depression and anxiety. In this multifactorial disorder, parameters such as inflammation, the state of the microbiota and, therefore, the patient's nutrition are receiving more attention. In addition, food products are the source of many essential ingredients involved in the regulation of mental processes, including amino acids, neurotransmitters, vitamins, and others. For this reason, this narrative review was carried out with the aim of analyzing the role of nutrition in depression and anxiety disorders. To reach the review aim, a critical review was conducted utilizing both primary sources, such as scientific publications and secondary sources, such as bibliographic indexes, web pages, and databases. The search was conducted in PsychINFO, MedLine (Pubmed), Cochrane (Wiley), Embase, and CinAhl. The results show a direct relationship between what we eat and the state of our nervous system. The gut-brain axis is a complex system in which the intestinal microbiota communicates directly with our nervous system and provides it with neurotransmitters for its proper functioning. An imbalance in our microbiota due to poor nutrition will cause an inflammatory response that, if sustained over time and together with other factors, can lead to disorders such as anxiety and depression. Changes in the functions of the microbiota-gut-brain axis have been linked to several mental disorders. It is believed that the modulation of the microbiome composition may be an effective strategy for a new treatment of these disorders. Modifications in nutritional behaviors and the use of ergogenic components are presented as important non-pharmacological interventions in anxiety and depression prevention and treatment. It is desirable that the choice of nutritional and probiotic treatment in individual patients be based on the results of appropriate biochemical and microbiological tests.

The effectiveness of structured physical activity on agitation in people with dementia: a rapid review

OBJECTIVES

Managing agitation and other behaviours that challenge is a significant dementia care challenge. The priority is to find effective non-pharmacological interventions as drug treatments can have significant side effects. This review evaluates the effectiveness of structured physical activity on agitation in dementia.

METHOD

Our rapid review searched four electronic databases, Cochrane CENTRAL, MEDLINE, CINAHL and Embase, for interventional studies using a structured physical activity programme in people with dementia and studied the effect of this activity on behaviours that challenge. Study quality was assessed using CASP criteria and data was narratively synthesised.

RESULTS

We included 13 studies in this review (four rated as high quality), involving a total of 1546 participants. Results were analysed according to exercise type, frequency and intensity of the intervention. Exercise is effective in reducing agitation and studies with higher adherence to exercise demonstrated more positive effects on agitation and behaviours that challenge.

CONCLUSION

Physical activity can be effective in reducing agitation in older adults with dementia. Further research is needed to clarify the type of intervention that is most beneficial. Strategies to make physical activity more acceptable and available to people with dementia need to be established.

The effectiveness of exercise interventions targeting sleep in older adults with cognitive impairment or Alzheimer's disease and related dementias (AD/ADRD): A systematic review and meta-analysis

Sleep loss is associated with reduced health and quality of life, and increased risk of Alzheimer's disease and related dementias. Up to 66% of persons with Alzheimer's disease and related dementias experience poor sleep, which can predict or accelerate the progression of cognitive decline. Exercise is a widely accessible intervention for poor sleep that can protect against functional and cognitive decline. No previous systematic reviews have investigated the effectiveness of exercise for sleep in older adults with mild cognitive impairment or Alzheimer's disease and related dementias. We systematically reviewed controlled interventional studies of exercise targeting subjectively or objectively (polysomnography/actigraphy) assessed sleep in persons with mild cognitive impairment or Alzheimer's disease and related dementias. We conducted searches in PubMed, Embase, Scopus and Cochrane-Library (n = 6745). Nineteen randomised and one non-randomised controlled interventional trials were included, representing the experiences of 3278 persons with mild cognitive impairment or Alzheimer's disease and related dementias. Ten had low-risk, nine moderate-risk, and one high-risk of bias. Six studies with subjective and eight with objective sleep outcomes were meta-analysed (random-effects model). We found moderate- to high-quality evidence for the beneficial effects of exercise on self-reported and objectively-measured sleep outcomes in persons with mild cognitive impairment or Alzheimer's disease and related dementias. However, no studies examined key potential moderators of these effects, such as sex, napping or medication use. Our results have important implications for clinical practice. Sleep may be one of the most important modifiable risk factors for a range of health conditions, including cognitive decline and the progression of Alzheimer's disease and related dementias. Given our findings, clinicians may consider adding exercise as an effective intervention or adjuvant strategy for improving sleep in older persons with mild cognitive impairment or Alzheimer's disease and related dementias.

The effect of a physical activity intervention on burden and healthy lifestyle behavior in family caregivers of patients with schizophrenia: A randomized controlled trial

AIM

The aim of this study is to investigate the efficacy of a physical activity intervention on burden and healthy lifestyle behavior in family caregivers of schizophrenia.

METHOD

A randomized, controlled trial was conducted to evaluate the effect of physical activity program on burden and healthy lifestyle behavior in family caregivers of patients with schizophrenia. The "Physical Activity Program" consisted of 5 min of warm-up activities as the initial segment, 20 min of rhythmic exercises as the activity segment, 5 min of cool down exercises as the final segment and 30 min of free walking. The program consisted of 8 sessions. The Zarit Caregiver Burden Scale and the Healthy Lifestyle Behavior Scale were applied to the physical activity and control groups ahead of the program's implementation. A total of 60 caregivers were randomly distributed to the intervention (n = 30) and control groups (n = 30). Post-intervention measurement was completed by 60 caregivers and all the caregivers completed the intervention.

RESULTS

Significant differences were found on the Zarit Caregiver Burden Scale score and Healthy Lifestyle Behavior score between the groups.

CONCLUSION

Future research should examine with larger sample groups, carry out interventions, and apply the physical activity intervention by targeting caregivers, along with different interventions.

Aerobic Training and Circulating Neurotrophins in Alzheimer's Disease Patients: A Controlled Trial

OBJECTIVE

to verify the effects of aerobic exercise training in circulating BDNF, VEGF₁₆₅ and IGF-1 plasma levels and cognitive function in Alzheimer's Disease (AD) patients.

METHODS

34 AD patients participated in the study, divided in two groups: Control Group (CG; n = 16) and Training Group (TG; n = 18 - Moderate aerobic training on the treadmill, three times a week, for 12 weeks). BDNF, VEGF_165, and IGF-1 plasma levels were considered as a primary outcome. Secondary outcomes included cognitive functions and aerobic fitness.

RESULTS

After 12 weeks, maintenance of executive functioning in the TG was found, yet no significant changes on circulating neurotrophins levels were identified. For aerobic fitness, there was an increment in TG group.

CONCLUSION

Twelve weeks of aerobic training were neither effective in improving cognitive functioning significantly, nor influential on circulating neurotrophins levels in AD patients.

A Literature Review on the Burden of Alzheimer's Disease on Care Partners

BACKGROUND

Many individuals with Alzheimer's disease (AD) are dependent on nonprofessional care partners. Providing informal care can result in emotional, physical, and financial burdens; however, there is a need for a better understanding of the impact of AD on care partners to support the clinical and economic assessment of potential new treatments.

OBJECTIVE

We conducted a literature review to evaluate the burden experienced by care partners of individuals with AD.

METHODS

Electronic screening and supplementary searches identified studies published from 2011 to 2022 describing the association between AD and the quality of life (QoL) and physical health of care partners, and the economic or financial burden of AD.

RESULTS

Following electronic screening, 62, 25, and 39 studies were included on care partner burden, cost, and healthcare resource use in AD, respectively. Supplementary searches identified an additional 32 studies, resulting in 149 unique studies. These studies showed that care partners of individuals with AD report moderate to severe burden. Higher burden and lower QoL were observed in those caring for individuals with more severe AD. Care partners of individuals with AD experience higher burden, lower QoL, and higher levels of stress, depression, and anxiety than those without caring responsibilities. Informal care costs increased with AD severity and accounted for the greatest proportion of overall societal cost.

CONCLUSIONS

Care partners of individuals with AD experience emotional and economic burden, which increases with AD severity. These impacts should be quantified comprehensively in future studies and captured in economic evaluations of AD interventions.

Physical Exercise as a Nonpharmacological Intervention for the Treatment of Neuropsychiatric Symptoms in Persons With Dementia: A Meta-analysis of Randomized Controlled Trials

BACKGROUND

Neuropsychiatric symptoms (NPS) are prevalent in dementia and affect both patients and caregivers in multiple ways. Because of the complications of drug treatments, nonpharmacological interventions, such as exercise, are of particular value. This study aimed to investigate the effect of exercise on the NPS of dementia and draw recommendations for the disease management.

METHODS

Meta-analyses were conducted on the findings of randomized controlled trials identified during an initial systematic review of the literature, according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. The included studies examined the effect of exercise interventions on patients with dementia or mild cognitive impairment using valid assessment tools. The quality of evidence was assessed using Grading of Recommendations, Assessment, Development, and Evaluation analysis.

RESULTS

The meta-analyses revealed that exercise significantly limits NPS [mean difference: -5.28, (95% CI, -9.46, -1.11), P = 0.01] and symptoms of depression [standardized mean difference: -0.16, (95% CI, -0.29, -0.02), P = 0.02], and has a beneficial effect on agitation symptoms. The Grading of Recommendations, Assessment, Development, and Evaluation analysis results showed that exercise has a moderate and high confidence positive effect on NPS and depression, respectively.

CONCLUSIONS

Exercise could be an alternative approach for nonpharmacological treatment of NPS in dementia. Therefore, exercise could be utilized as a treatment of choice or to support existing treatment regimens.

Nonpharmacologic Interventions for Family Caregivers of People Living With Dementia in Latin-America: A Scoping Review

OBJECTIVE

Dementia prevalence in Latin America (LATAM) is rapidly increasing, contributing to significant family burden. As families are responsible for care, supportive interventions are critical. To understand the state-of-the-science, a scoping review was conducted of non-pharmacologic interventions for caregivers of people living with dementia (PLWD) in LATAM.

DESIGN

Eight databases were searched (PubMed, Embase, PsycINFO, Scopus, Scielo, Lilacs, Redalyc, Google Scholar) for nonpharmacological intervention studies published up to July, 2021 in LATAM reporting at least 1 caregiver outcome. A qualitative synthesis examined study designs, participants, and outcomes characteristics.

RESULTS

Forty-five studies were identified from 25.8% (n = 8/31) of LATAM countries (28 = Brazil, 4 = Chile, 4 = Cuba, 4 = México, 2 = Colombia, 1 = Perú, 1 = Ecuador, 1 = Argentina): 29% (n = 17) were randomized clinical trials (RCT), 7% (n = 3) nonrandomized comparison trials, 42% (n = 19) pre-post trials, 9% (n = 4) postintervention analyses, and 4% (n = 2) single case studies, comprising a total of 1,171 caregivers and 817 PLWD. For 20 RCT and nonrandomized comparison trials, 31 interventions were tested of which 48.4% (n = 15) targeted caregivers and 32.3% (n = 10) dyads. Most studies involved daughters with less than 12 years of education and tested multicomponent interventions involving disease education (90%), and cognitive behavioral coping (45%). Half of interventions (51.6%; n = 16/31) tested were adapted from other countries, and reported benefits for caregiver depression, quality of life, and burden.

CONCLUSION

Studies were conducted in a limited number of LATAM countries and few were RCTs. Results of RCTs showed benefits for socially vulnerable caregivers on psychosocial outcomes. There is an urgent need to rigorously evaluate more country/culturally specific interventions addressing unmet familial needs beyond psychosocial support.

Effects of a Home-Based Exercise Program on Health-Related Quality of Life and Physical Fitness in Dementia Caregivers: A Randomized Controlled Trial

Regular exercise can be an effective health-promotion strategy to improve the physical and mental health of informal caregivers. A randomized controlled trial study was designed to evaluate the effects of a 9-month home-based exercise intervention on health-related quality of life (HRQoL) and physical fitness in female family caregivers of persons with dementia. Fifty-four female caregivers were randomly assigned to two groups for the 9-month study period. Participants of the intervention group (n = 25) performed two 60-min exercise sessions per week at home, under the direct supervision of a personal trainer. Participants in the control group (n = 23) continued their habitual leisure-time activities. HRQoL was assessed using the SF-36 questionnaire, and physical fitness was measured using a battery of appropriate fitness tests. After 9 months, significant improvements were observed in general health, social function, vitality, hand and leg strength, trunk flexor and extensor endurance, and aerobic endurance in the intervention group. The present intervention was highly adherent and safe for the participants, with no dropout related to the intervention. As a home-based exercise program conducted by a personal trainer face to face, it can be considered as a feasible and appropriate method to improve the most deficient HRQoL dimensions and contribute to preserving the functional capacity of female family caregivers of persons with dementia.

The effectiveness of physical exercise interventions in the management of neuropsychiatric symptoms in dementia patients: a systematic review

BACKGROUND

The management of neuropsychiatric symptoms (NPS) in patients with dementia is a major challenge. Since no effective therapy has been found to date and drug treatments are associatedwith significant side effects, there seems to be a pressing need for alternative non-pharmacological interventions.

OBJECTIVES

The current study aims to investigate and compare the effect of different types of physical exercise on the NPS.

METHODS

A systematic review of the literature was conducted according to the PRISMA guidelines. Five databases (SCOPUS, PubMed, SPORT Discus, Web of science and ScienceDirect) were searched using the appropriate algorithm. What was sought out was randomized control trials (RCTs) that applied physical activity interventions with specific characteristics (type, frequency, intensity, and duration) in patients with dementia or mild cognitive impairment, studied the effect of exercise on their NPS and compared this effect with a control group that did not follow an exercise program.

RESULTS

From 512 articles, 13 studies were included in this review, involving a total of 1,925 patients. The results were analyzed and synthesized according to the type of exercise applied - aerobic exercise, multidimensional interventions and muscular strength training programs. In particular, the results showed that repetitive aerobic exercise three to five times a week had a positive effect on NPS, whereas multidimensional interventions combining different types of exercise did not appear to be as effective. Strength training programs have been found to significantly reduce depression symptoms and behavioral problems in demented patients with mobility problems.

CONCLUSIONS

There is clear evidence that physical activity and especially aerobic exercise may be effective in the management of NPS. However, it is necessary to apply specific practical recommendations and specially designed programs to incorporate physical exercise into the daily routine of these patients.

Physical Exercise and Mental Health: The Routes of a Reciprocal Relation

Sport participation and exercise practice are considered to be beneficial for mental status, yielding an improved mood and better quality of life. On the other hand, good mental fitness is thought to lead to better physical status and sport performance. The key aim of this narrative review is to provide an unstructured overview on the topic with special considerations on the role of mental and physical health to summarize the evidence on their reciprocal influence. While very few papers describe the role of mental health measures in affecting physical performance, more evidence is available concerning the effect of exercise and sport in improving mental health outcomes. Furthermore, there is a consistent role of depressive and anxiety symptoms in influencing the risk of sport injury in either recreational or elite athletes. Moreover, the importance of investigating mental health issues in elite and retired athletes is highlighted. On the basis of the available literature, several biases were found to affect the provided evidence mainly because of the complexity of a proper study design in this field.

Cardiovascular Complications of Acetylcholinesterase Inhibitors in Patients with Alzheimer's Disease: A Narrative Review

While acetylcholinesterase inhibitors are used to treat a wide range of patients with Alzheimer's disease, acetylcholinesterase inhibitor use has also been associated with a variety of cardiovascular complications, including bradycardia and syncope. Herein, we review the pathophysiology and clinical evidence for cardiovascular complications caused by acetylcholinesterase inhibitors in patients being treated for dementia and discuss options for their management.

The Influence of Depression, Anxiety and Cognition on the Treatment Effects of Ginkgo biloba Extract EGb 761® in Patients with Tinnitus and Dementia: A Mediation Analysis

Background: Comorbid occurrence of tinnitus and emotional symptoms of anxiety and depression is highly prevalent. The Ginkgo biloba extract EGb 761^® has been shown to be effective in reducing neuropsychiatric symptoms in patients with dementia and tinnitus. Methods: We performed a mediation analysis to evaluate direct effects of EGb 761^® on tinnitus severity, as well as indirect effects mediated by symptoms of depression and anxiety and by changed cognition. We pooled data from subsets of patients suffering from tinnitus that were enrolled in three double-blind, randomized, placebo-controlled clinical trials, which investigated the efficacy of EGb 761^® (240 mg/day for 22–24 weeks) in dementia with concomitant neuropsychiatric symptoms. Results: In total, 594 patients suffered from tinnitus (EGb 761^®, 289; placebo, 305). Direct effects of EGb 761^® on tinnitus severity (p < 0.001) in patients with mild to moderate dementia were found to represent about 60% of the total effect, whereas the indirect effects (p < 0.001) mediated by improvement of anxiety, depression and cognition represented about 40% of the total effect. Conclusions: EGb 761^® could be considered as a supporting treatment for tinnitus in elderly patients suffering from dementia, with added benefit in those with symptoms of depression or anxiety.

Physical exercise is effective for neuropsychiatric symptoms in Alzheimer's disease: a systematic review

BACKGROUND

Neuropsychiatric symptoms are disorders frequently seen in Alzheimer's disease. These symptoms contribute to reduction of brain reserve capacity and, in addition, they present unfavorable implications, such as: poor prognosis for the disease, increased functional decline, increased burden on the caregiver and institutionalization. This scenario makes neuropsychiatric symptoms one of the biggest problems in Alzheimer's disease, and gives rise to a need for treatments focused on improving these symptoms. Sow progress in drug trials has led to interest in exploring non-pharmacological measures for improving the neuropsychiatric symptoms of Alzheimer's disease, such as physical exercise.

OBJECTIVE

To ascertain the effect of exercise on the neuropsychiatric symptoms of Alzheimer's disease and its implications.

METHODS

This was a systematic review of effective longitudinal research, conducted by searching for articles in the PubMed, Web of Science, CINAHL and Scopus electronic databases, from 2009 to 2019. Studies in which the sample consisted of elderly people aged 65 years old or over with a diagnosis of Alzheimer's disease were included. Initially 334 articles were identified. After exclusions, 21 articles remained to be read in full. From these, five articles fitted the eligibility criteria, and a further two articles were added through manual searches in the references of the articles found.

RESULTS

Out of the seven articles analyzed in this review, five studies revealed that physical exercise had a positive effect on the neuropsychiatric symptoms of Alzheimer's disease.

CONCLUSION

This systematic review indicated that physical exercise is a favorable non-pharmacological means for attenuating the neuropsychiatric symptoms of elderly people with Alzheimer's disease, with special attention to aerobic exercises.

Exploring the Effects of a Golf Program on Psychological and Social Wellbeing for People With Dementia, Carers, and Staff

There is a paucity of evidence regarding the effects of sport and physical activity on wellbeing in dementia. The present study is the first known study to involve golf with this population. People with dementia (n = 10) and carers (n = 5) participated in a 6-week golf program, facilitated by golf center staff (n = 3). Multiple avenues of data collection were utilized and were subject to thematic analysis. Five central themes were identified: emotion, respite, losing the "dementia" label, friendship/camaraderie, and improving relationships. Underlying subthemes were also identified, while potential links between themes were highlighted. Themes were also considered in terms of which participants (person with dementia, carer, and staff) provided evidence for each theme. This study presents preliminary support for the role of golf to enhance the psychological and social wellbeing of people with early stages of dementia, carers, and staff. Potential mechanisms and future research are discussed.

Effects of a home-based exercise program on mental health for caregivers of relatives with dementia: a randomized controlled trial

OBJECTIVE

This study was aimed to evaluate the effectiveness of a home-based physical exercise program on participants' mental health: psychological symptoms, depression, and burden of female informal caregivers.

DESIGN AND PARTICIPANTS

In a randomized controlled trial, a sample of 48 female informal primary caregivers completed the entire study, 25 were randomly allocated to the intervention group (IG), and 23 participants to the control group (CG).

INTERVENTION

Participants in the IG performed two 60-minute-long physical exercise sessions per week (36 weeks) that were supervised by a personal trainer at caregivers' home during 9 months. The CG continued their habitual leisure-time activities.

MEASUREMENTS

Subjective burden was assessed by the Zarit Burden Interview. The risk of depression was measured by the Geriatric Depression Scale Short Form 15-item version, and psychological symptoms were evaluated by the Symptom Check List-90-Revised (SCL-90-R). All participants were evaluated at baseline and at the end of the intervention.

RESULTS

A promising positive impact of the intervention on caregivers' subjective burden and risk of depression was found in the IG. In addition, no significant between-group differences were found in any of nine subscales scores of the SCL-90-R. Finally, care recipients' level of functional independence and area of residence were found to be predictors of the promising positive impact on caregivers' subjective burden and risk of depression.

CONCLUSIONS

The present home-based physical exercise intervention that was individually implemented has shown promising results to reduce subjective burden and risk of depression in female caregivers of relatives with dementia. However, future research efforts should elucidate both the particular dose of physical exercise and the particular duration of the intervention that are required to obtain the expected significant positive impact. Finally, future inclusion of psychological approaches, besides physical exercise, might help reduce female caregivers' psychological symptoms.

Acute exercise increases circulating IGF-1 in Alzheimer's disease patients, but not in older adults without dementia

OBJECTIVES

Increased Insulin-like growth factor I (IGF-1) has been associated with improvement of cognitive function in response to exercise. Evidences indicate a role for IGF-1 in beta-amyloid clearance and reducing hyperphosphorylation tau in Alzheimer's disease (AD). There is a need to investigate the IGF-1 response to exercise in AD patients due to well-known potential effects of exercise on IGF-1. The aim of this study was to examine circulating IGF-1 levels in AD patients and older adults without dementia after acute exercise and to verify the associations among cardiorespiratory fitness, cognition and IGF-1 levels.

METHOD

Seventy-four older adults (40 older adults without dementia and 34 AD patients) participated in this study. The outcomes included IGF-1 plasma levels and performance in the submaximal exercise stress test. Secondary outcomes included cognitive functions, depressive symptoms, level of physical activity, insulin-resistance, and cholesterol. All participants performed the incremental test on a treadmill and IGF-1 was collected before and after the exercise.

RESULTS

A tendency to the difference of baseline IGF-1 plasma levels between the groups was found. After the acute exercise AD patients also presented higher levels of circulating IGF-1 compared to the Older adults without dementia. Correlations among cardiorespiratory fitness and cognitive functions were found.

CONCLUSION

The findings suggest that AD patients and older adults respond differently to acute exercise in terms of circulating IGF-1 levels. This response seems to indicate either an IGF-1 resistance or a compensatory exercise-induced to lower IGF-1 levels in AD patients. Cardiorespiratory fitness is associated with global cognition, executive function, attention and information processing speed.

A Structured Physical Exercise Program Reduces Professional Caregiver's Burden Caused by Neuropsychiatric Symptoms in Acute Dementia Care: Randomized Controlled Trial Results

Physical exercise is an effective treatment approach for neuropsychiatric symptoms (NPS), but it is unknown whether the reduction of NPS has an impact on professional caregiver's burden. A randomized controlled trial in acute dementia care with N = 70 patients, n = 35 per group, was conducted. The intervention group (IG) received an exercise program, the control group a social stimulation program. The RM-ANOVA showed a significant group x time interaction with time effects for the IG and decreased caregiver burden due to the exercise program at follow-up. Physical exercise programs may not only be beneficial for the patients but also for their professional caregivers.

An integrative review of exercise interventions among community-dwelling adults with Alzheimer's disease

AIMS

To synthesise the current research on exercise interventions and health-related outcomes among community-dwelling adults with Alzheimer's disease (AD).

METHODS

Integrative review of the literature reporting exercise interventions among people with AD living in the communities.

RESULTS

Seventeen studies presented in 24 quantitative papers with 1,068 participants diagnosed with Alzheimer's disease were reviewed. The interventions varied in intervention programme characteristics (e.g. baseline assessments, type of exercise, exercise dose, outcome measurements). Among them, (a) 13 studies appeared beneficial to physical fitness in different areas; (b) 9 studies reported the effects on cognitive ability and two studies showed the positive effects; (c) 12 studies reported the participants' adherence, but only 2 studies reported the participants' adherence using attendance and training intensity.

CONCLUSION

Exercise is proven to be effective in physical fitness among community-dwelling patients with AD. Future studies should verify the effects on cognitive function and possible mechanisms of different exercise types using more sensitive and objective outcome measurements. Additionally, treatment fidelity, cost-effectiveness and long-term effects should be explored.

IMPLICATION FOR PRACTICE

Exercise may be effective and feasible for community-dwelling people with AD, but its effects on cognition need to be verified in the future. This review provided recommendations for assisting nurses and other clinicians in developing, implementing, and/or evaluating exercise interventions for patients with AD.

Role of physical activity in ameliorating neuropsychiatric symptoms in Alzheimer disease: A narrative review

OBJECTIVE

Neuropsychiatric symptoms (NPs) affect almost all patients with Alzheimer disease (AD). Because of the complications associated with the pharmacological treatment, nonpharmacological treatment (such as physical activity) can be considered as an additional complementary treatment option for NPs. The aim of this review is to evaluate the impact of physical activity on NPs in patients with AD.

METHODS

We searched Pubmed and Google Scholar for potential eligible articles until March 1, 2018.

RESULTS

Although there are contradictory results showing the impact of physical exercise on NPs, most of them reported that it had a significant effect on depression and sleep disturbances in patients with AD. The beneficial effects could be explained through several mechanisms, including modulated production of neurotransmitters; increasing neurotrophins, such as brain-derived neurotrophic factor; reduction of oxidative stress and inflammation; elevation of cerebral blood flow; hypothalamic pituitary adrenal axis regulation; and support of neurogenesis and synaptogenesis. Physical activity can also improve cardiovascular risk factors, which may exaggerate NPs. There is limited evidence for other NPs such as agitation, disinhibition, apathy, hallucinations, and anxiety.

CONCLUSION

Physical activity may ameliorate depression and sleep disturbances in patients with AD. Therefore, physical activity can be a "potential" add-on treatment to drugs to reduce or prevent these symptoms onset and recurrence in patients with AD. However, further studies are needed to focus on relationship between physical activity and other NPs.

Effects of Physical Exercise on Depressive Symptoms in Patients With Cognitive Impairment: A Systematic Review and Meta-Analysis

We aimed to evaluate the efficacy of physical exercise in ameliorating depressive symptoms in patients with cognitive impairment. The databases of PubMed, EMBASE, Web of Science, the Cochrane Library, PsycINFO, China National Knowledge Infrastructure, WanFang, and WeiPu (VIP) were searched to identify randomized controlled trials (RCTs) that involved physical exercise for patients with cognitive impairment. A random effects model and a fixed effects model were used to calculate the pooled effect size. Twenty-one studies were identified. The meta-analysis showed that physical exercise significantly ameliorated depressive symptoms (standardized mean difference [SMD] = -0.23; 95% confidence interval [CI], -0.39 to -0.07; p = 0.004). In addition, beneficial improvements in neuropsychiatric symptoms (mean difference, -4.62; 95% CI, -9.07 to -0.16, p = 0.04), quality of life (SMD = 0.23; 95% CI, 0.01-0.46; p = 0.04), and activities of daily living (SMD = 0.27; 95% CI, 0.12-0.43; p = 0.0005) were observed in our study. No significant improvements were found in anxiety or apathy. Nevertheless, further high-quality, multicenter RCTs are needed to identify the clinical value of our results.

Current understanding of Alzheimer's disease diagnosis and treatment

Alzheimer’s disease is the most common cause of dementia worldwide, with the prevalence continuing to grow in part because of the aging world population. This neurodegenerative disease process is characterized classically by two hallmark pathologies: β-amyloid plaque deposition and neurofibrillary tangles of hyperphosphorylated tau. Diagnosis is based upon clinical presentation fulfilling several criteria as well as fluid and imaging biomarkers. Treatment is currently targeted toward symptomatic therapy, although trials are underway that aim to reduce the production and overall burden of pathology within the brain. Here, we discuss recent advances in our understanding of the clinical evaluation and treatment of Alzheimer’s disease, with updates regarding clinical trials still in progress.

Supporting carers of people with dementia: What is effective?

Carer stress is well documented, especially in those caring for individuals with dementia. A recommendation of all national dementia strategies is to provide excellent support and information to informal carers of people with dementia. NICE guidance suggests that a range of tailored interventions, including psychological input, psychoeducation and training courses, should be offered to reduce caregiver burden and stress, although good-quality outcome-based evidence is lacking. On the basis of a narrative review of the literature, we describe individual and multicomponent carer support packages and discuss their evidence base, reflecting on outcomes for carers. Multicomponent interventions have the best evidence for effectiveness.

Learning Objectives

• Consider the risks of both physical and psychological harm experienced by carers of people with dementia (often referred to as carer burden or caregiver burden)

• Be aware of the interventions available for the support of carers of people with dementia

• Consider the evidence for the effectiveness of these interventions and be aware of the limitations of the evidence

Physical activity programs for elderly persons: an evaluation of Brazilian scientific production using the RE-AIM framework

The RE-AIM framework is a model that analyzes both the external and internal validity of health programs. It proposes that programs should be evaluated based on five key dimensions: reach, effectiveness/efficiency, adoption, implementation and maintenance. The aim of the present study was to conduct a systematic review of physical activity programs for elderly persons published in Brazilian scientific literature using the RE-AIM framework. A total of 26 articles included in four scientific databases from 1993 to 2013 were identified and coded using a validated 52-item RE-AIM abstraction tool. Using the RE-AIM dimensions, indicators of reach (47.2%), effectiveness (36.3%), and implementation (27.5%) were reported more often than indicators of adoption (6.4%) and maintenance (4.7%). Only two articles were included in all five RE-AIM dimensions. Despite the increasing number of interventions targeting the elderly, few address the dimensions proposed by the RE-AIM framework, reducing their potential generalizability outside their original settings, and their overall external validity.

Cognitive-behavioural group therapy improves a psychophysiological marker of stress in caregivers of patients with Alzheimer's disease

BACKGROUND

Family caregivers of patients with dementia frequently experience psychological stress, depression and disturbed psychophysiological activity, with increased levels of diurnal cortisol secretion.

OBJECTIVES

To compare the effects of a cognitive-behavioural group therapy (CBT) to a psychoeducation group programme (EDUC) on cortisol secretion in caregivers of patients with moderate Alzheimer's disease (AD).

METHOD

Caregivers of AD outpatients were semi-randomly allocated to one of two intervention programmes (CBT or EDUC) consisting of eight weekly sessions. Twenty-six participants completed the study. Before and after intervention, salivary cortisol was collected at four different times of the day. Effects of the interventions were evaluated with self-report psychological scales and questionnaires related to functional abilities and neuropsychiatric symptoms of the AD relative.

RESULTS

Only in the CBT group did salivary cortisol levels significantly decrease after intervention, with a large effect size and high achieved power. Both groups reported a reduction of neuropsychiatric symptoms of their AD relative after intervention.

CONCLUSION

Psychoeducation for caregivers may contribute to a reduction of neuropsychiatric symptoms of AD patients while CBT additionally attenuates psychophysiological responses to stressful situations in caregivers, by reducing diurnal cortisol levels. This may lead to a positive impact in the general health of the caregiver, eventually resulting in better care of the AD patient.

A typology of care-giving across neurodegenerative diseases presenting with dementia

The purpose of this study is to develop and extend our understanding of dementia care-giving by introducing a typology of informal care-giving across four different diseases. Care-giving factors were examined with respect to specific dementia presentation in mild cognitive impairment, Alzheimer's disease, dementia with Lewy bodies and Parkinson's disease-associated dementia. Informal care-giving literature in the four diseases was systematically searched to identify specific disease symptoms and resultant care-giving strains and outcomes. Key concepts were extracted and grouped thematically. The first classification, ‘role-shift’, reflects care-giving where cognitive deterioration results in changing roles, uncertainty and relational deprivation among married partners. The second classification, ‘consumed by care-giving’, refers to those caring for persons with dementia-motor decline that greatly increases worry and isolation. Finally, in the ‘service use’ classification, formal support is needed to help care-givers cope with daily responsibilities and behaviour changes. In each case, the dementia presentation uniquely impacts care-giver strains. A major conclusion is that the same support to all care-givers under the umbrella term ‘dementia’ is unwarranted; the development of targeted support is required.

Is sertraline treatment or depression remission in depressed Alzheimer patients associated with improved caregiver well being? Depression in Alzheimer's Disease Study 2

OBJECTIVE

We wanted to assess if sertraline treatment (versus placebo) or remission of depression at 12 weeks (versus nonremission) in Alzheimer patients is associated with improved caregiver well being.

METHODS

We conducted a randomized, double-blind, placebo-controlled clinical trial of the efficacy and safety of sertraline for the treatment of depression in individuals with Alzheimer disease in five clinical research sites across the United States. Participants were caregivers of patients enrolled in the Depression in Alzheimer's Disease Study 2 (N = 131). All caregivers received standardized psychosocial support throughout the study. Caregiver outcome measures included depression (Beck Depression Inventory), distress (Neuropsychiatric Inventory), burden (Zarit Burden Interview), and quality of life (Medical Outcomes Study Short Form Health Survey).

RESULTS

Fifty-nine percent of caregivers were spouses, 63.4% were women, and 64.1% were white. Caregivers of patients in both treatment groups had significant reductions in distress scores over the 24-week study period, but there was not a greater benefit for caregivers of patients taking sertraline. However, caregivers of patients whose depression was in remission at week 12 had greater declines in distress scores over the 24 weeks than caregivers of patients whose depression did not remit by week 12.

CONCLUSION

Patient treatment with sertraline was not associated with significantly greater reductions in caregiver distress than placebo treatment. Distress but not level of depression or burden lessened for all caregivers regardless of remission status and even more so for those who cared for patients whose depression remitted. Results imply an interrelationship between caregiver distress and patient psychiatric outcomes.

Exercise and its interactions with various aspects of man and animal lives

To review recently published papers in the Brazilian Scientific press on the general subject of physical exercise. All articles published in 2010/2011 found through the keyword exercise were collected from 11 Brazilian Journals. They were hand filtered to exclude all but original research papers. They were grouped according to subject categories and subcategories. A brief summary of all included articles was produced, comparing similar articles between them. The most commonly found interactions refer to exercise vs. the cardiovascular system, metabolism and the locomotor system, in this order. The volume of scientific research in the field is high and of sufficient quality to justify highlighting.