Caregiving, Dementia, Research & Best Practice, Therapeutic Activities

Dementia: Why we find it difficult to stay awake in the day and sleep at night?

Posted on August 29, 2019November 1, 2019 by Joanna Sun

Study Suggests Tau Tangles, Not Amyloid Plaques, Drive Daytime Napping That Precedes Dementia

Researchers and caregivers have noted that excessive daytime napping can develop long before the memory problems associated with Alzheimer’s disease begin to unfold. Prior studies have considered this excessive daytime napping to be compensation for poor nighttime sleep caused by Alzheimer’s-related disruptions in sleep-promoting brain regions, while others have argued that the sleep problems themselves contribute to the progression of the disease. But now UC San Francisco scientists have provided a striking new biological explanation for this phenomenon, showing instead that Alzheimer’s disease directly attacks brain regions responsible for wakefulness during the day.

two people talk in a lab — Lea Grinberg (right), MD, PhD, the senior study author

The new research demonstrates that these brain regions (including the part of the brain impacted by narcolepsy) are among the first casualties of neurodegeneration in Alzheimer’s disease, and therefore that excessive daytime napping – particularly when it occurs in the absence of significant nighttime sleep problems – could serve as an early warning sign of the disease. In addition, by associating this damage with a protein known as tau, the study adds to evidence that tau contributes more directly to the brain degeneration that drives Alzheimer’s symptoms than the more extensively studied amyloid protein.

“Our work shows definitive evidence that the brain areas promoting wakefulness degenerate due to accumulation of tau – not amyloid protein – from the very earliest stages of the disease,” said study senior author Lea T. Grinberg, MD, PhD, an associate professor of neurology and pathology at the UCSF Memory and Aging Center and a member of the Global Brain Health Institute and UCSF Weill Institute for Neurosciences.

Wakefulness Centers Degenerate in Alzheimer’s Brains

In the new study, published August 12, 2019, in Alzheimer’s & Dementia: The Journal of the Alzheimer’s Association, lead author Jun Oh, a Grinberg lab research associate, and colleagues precisely measured Alzheimer’s pathology, tau protein levels and neuron numbers in three brain regions involved in promoting wakefuless from 13 deceased Alzheimer’s patients and seven healthy control subjects, which were obtained from the UCSF Neurodegenerative Disease Brain Bank.

Compared to healthy brains, Oh and colleagues found that the brains of Alzheimer’s patients had significant tau buildup in all three wakefulness-promoting brain centers they studied – the locus coeruleus (LC), lateral hypothalamic area (LHA), and tuberomammillary nucleus (TMN) – and that these regions had lost as many as 75 percent of their neurons.

portrait on Jun Oh. — Jun Oh, lead author of the study.

“It’s remarkable because it’s not just a single brain nucleus that’s degenerating, but the whole wakefulness-promoting network,” Oh said. “Crucially this means that the brain has no way to compensate because all of these functionally related cell types are being destroyed at the same time.”

Oh and colleagues also studied brain samples from seven patients with progressive supranuclear palsy (PSP) and corticobasal disease (CBD), two distinct forms of neurodegenerative dementia caused by tau accumulation. In contrast to the Alzheimer’s disease brains, wakefulness-promoting neurons appeared to be spared in the PSP and CBD brains, despite comparable levels of tau buildup in these tissue samples.

“It seems that the wakefulness-promoting network is particularly vulnerable in Alzheimer’s disease,” Oh said. “Understanding why this is the case is something we need to follow up in future research.”

Studies Point to Role of Tau Protein in Alzheimer’s Symptoms

The new results are in line with an earlier study by Grinberg’s group which showed that people who died with elevated levels of tau protein in their brainstem – corresponding to the earliest stages of Alzheimer’s disease – had already begun to experience changes in mood, such as anxiety and depression, as well as increased sleep disturbances.

“Our new evidence for tau-linked degeneration of the brain’s wakefulness centers provides a compelling neurobiological explanation for those findings,” Grinberg said. “It suggests we need to be much more focused on understanding the early stages of tau accumulation in these brain areas in our ongoing search for Alzheimer’s treatments.”

These studies add to a growing recognition among some researchers that tau buildup is more closely linked to the actual symptoms of Alzheimer’s than the more widely studied amyloid protein, which has so far failed to yield effective Alzheimer’s therapies.

For instance, another recent study by the Grinberg lab measured tau buildup in the brains of patients who died with different clinical manifestations of Alzheimer’s disease, including variants that involved language impairment or visual problems instead of more typical memory loss. They found that differences in local tau burden in these patients’ brains closely matched their symptoms: patients with language impairments had more tau accumulation in language related brain areas than in memory regions, while patients with visual problems had higher tau levels in visual brain areas.

“This research adds to a growing body of work showing that tau burden is likely a direct driver of cognitive decline,” Grinberg said.

Increased focus on the role of tau in Alzheimer’s suggests that treatments currently in development at UCSF’s Memory and Aging Center and elsewhere that directly tackle tau pathology have the potential to improve sleep and other early symptoms of Alzheimer’s disease, in addition to holding a key to slowing the progress of the disease overall, the authors say.

Authors: See study online for full list of authors.

Funding: This study was supported by The Rainwater Foundation and grants from the National Institutes of Health (R01AG064314, R01AG060477, P50AG023501, P01AG019724, K24AG053435), the Global Brain Health Institute, and the São Paulo Research Foundation (FAPESP).

Disclosures: The authors declare no conflicts of interest.

The University of California, San Francisco (UCSF) is exclusively focused on the health sciences and is dedicated to promoting health worldwide through advanced biomedical research, graduate-level education in the life sciences and health professions, and excellence in patient care. It includes UCSF Health, which comprises three top-ranked hospitals, as well as affiliations throughout the Bay Area.

Source
August 2019| The Regents of The University of California – Alzheimer’s Disease Destroys Neurons that Keep Us Awake By Nicholas Weiler

Caregiving, Dementia

Apathy: The forgotten symptom of dementia

Posted on July 19, 2019November 1, 2019 by Joanna Sun

Press Release
July 2019| University of Exeter – Apathy: The forgotten symptom of dementia

Apathy is the most common neuropsychiatric symptom of dementia, with a bigger impact on function than memory loss – yet it is under-researched and often forgotten in care.

photo of elderly man sitting on wooden chair outside house — Photo by weedlyr on Pexels.com

A new study has found that apathy is present nearly half of all people with dementia, with researchers finding it is often distinct from depression.

Although common, apathy is often ignored as it is less disruptive in settings such as care homes than symptoms like aggression. Defined by a loss of interest and emotions, it is extremely distressing for families and it is linked with more severe dementia and worse clinical symptoms.

Now, research led by the University of Exeter and presented at the Alzheimer’s Association International Conference in LA has analysed 4,320 people with Alzheimer’s disease from 20 cohort studies, to look at the prevalence of apathy over time.

At the start of the study, 45% presented with apathy, and 20% had persistent apathy over time. Researchers found that a proportion had apathy without depression, which suggests that the symptom might have its own unique clinical and biological profile when compared to apathy with depression and depression only.

Miguel de Silva Vasconcelos, PhD student at the University of Exeter and King’s College London, said : “Apathy is an under-researched and often ignored symptom of dementia. It can be overlooked because people with apathy seem less disruptive and less engaging, but it has a huge impact on the quality of life of people living with dementia, and their families. Where people withdraw from activities, it can accelerate cognitive decline and we know that there are higher mortality rates in people with apathy. It’s now time this symptom was recognised and prioritised in research and understanding.”

Professor Clive Ballard, of the University of Exeter Medical School, said: “Apathy is the forgotten symptom of dementia, yet it can have devastating consequences. Our research shows just how common apathy is in people with dementia, and we now need to understand it better so we can find effective new treatments. Our WHELD study to improve care home staff training through personalised care and social interaction included an exercise programme that improved apathy, so we know we can make a difference. This is a real opportunity for interventions that could significantly benefit thousands of people with dementia.”

The presentation was entitled ‘The Course of Apathy in People with Dementia’.

Ageing & Culture, Caregiving, Dementia, Research & Best Practice

Our ailing aged care system shows you can’t skimp on nursing care

Posted on June 28, 2019June 28, 2019 by Joanna Sun

The royal commission has scrutinised aged care staffing.
From shutterstock.com

Apil Gurung, University of the Sunshine Coast and Samantha Edwards, University of the Sunshine Coast

Staff shortages and a lack of training have once again emerged as key issues underpinning the nation’s aged care crisis, as the aged care royal commission hears testimony in Perth.

Registered nurse Noleen Hausler shared the experience of her 98-year-old father, Clarence, who was force-fed, assaulted and had a serviette held over his nose by a carer who was later convicted of aggravated assault.

Aside from this criminal behaviour, Ms Hausler said the standards at her father’s aged care facility declined after a new operator reduced staffing levels and employed carers with little training. Call bells went unanswered, she said, and incontinence pads were rationed.

Ms Hausler has called for increased ratios of registered nurses in aged care facilities, and better training and registration for carers.

Under-staffing and inadequate training have long been problems in Australia’s aged care facilities, with aged care facilities employing fewer registered and enrolled nurses and more carers who have lower levels of training.

Who does what in aged care?

A registered nurse (RN) provides nursing leadership and clinical supervision in aged care facilities. They are skilled clinicians who can respond to medical emergencies and are qualified to carry out assessments.

Registered nurses undergo three years of undergraduate study at university and are registered with the Australian Health Practitioner Regulation Agency (AHPRA) in order to practise in health care setting across Australia.

An enrolled nurse (EN) conducts observations and assessments, and collaborates with and seeks assistance from the registered nurse in charge. Enrolled nurses are registered with AHPRA and undergo an 18-month diploma of nursing at TAFE.

Finally, care workers form the bulk of the aged care workforce and perform tasks such as showering, dressing and feeding residents. Titles for carers vary and include assistant in nursing, personal care worker, personal care attendant, and aged care worker, to name a few.

Care workers are required to complete a certificate III-level course, which can take up to six or seven months, but don’t require registration.

Carers cost less than nurses

There is no clear legislation requiring a certain number of registered nurses, enrolled nurses and carers to be on duty at certain point in time. The Aged Care Act 1997 is open to interpretation, so aged care providers are largely free to set their own staffing levels.

As a result, in recent years aged care operators have recruited proportionally fewer registered and enrolled nurses and increasing numbers of unregulated carers.

Residents in aged care have complex needs, and those looking after them need to be equipped.
From shutterstock.com

The changing make up of the aged care workforce is mainly influenced by economic advantage: hiring carers is cheaper than hiring registered or enrolled nurses.

It can also be difficult to find enough nurses. Nurse retention in aged care has been a major challenge for the industry because aged care providers often pay lower wages than hospitals.

But nursing care is worth the investment

Research shows having a greater number of registered nurses increases patients’ well-being and safety. Better staffing levels allow nurses to spend more time caring for residents and reduces the likelihood that vital information is overlooked.

Adequately staffing aged care facilities has economic benefits by reducing staff turnover related to burnout and job dissatisfaction.

Employing skilled registered nurses in aged care facilities can also save the health system money by reducing the number of costly hospital admissions that arise because residents can’t be adequately cared for in their aged care facility.

Aged care residents often have mental health issues, face cognitive decline or dementia, take multiple medications each day, are physically frail, and often have multiple chronic conditions such as heart disease, diabetes, cancer, arthritis or asthma.

But it’s difficult to meet the needs of these patients with the current aged care staffing and skill levels.

More than 50% of the residents in a residential aged care facilities have some form of dementia, for example, yet more than 50% of aged care workers have no dementia training.

Substituting registered nurses with lesser skilled carers has meant tasks such as medication management have been assigned to carers in some aged care facilities, despite this being a high-risk task that requires a high level of skill and experience.

What are the solutions?

Carers currently make up around 70% of the aged care workforce. We need to reset aged care staffing levels and ensure we have the right skill sets, which industry bodies suggest is: 30% registered nurses, 20% enrolled nurses and 50% care workers.

It’s also time to professionalise caring roles with better regulation and the introduction of carer registration.

Registration would clarify carers’ roles and allow only the delegation of tasks which are deemed safe for carers to carry out within their scope of practice. It would also ensure minimum training standards are met and that quality and safety is maintained.

The aim is not to vilify carers, who are the backbone of our aged care system, but rather to highlight the need for the right level of training, education and support to strengthen the aged care workforce and complement the care provided by registered and enrolled nurses.

Finally, we also need to increase the number of registered and enrolled nurses in the aged care workforce with guided pathways to attract and retain nurses. Well-structured graduate nurse programs, for instance, can provide support and guidance to the graduates who are considering a career in aged care.

Apil Gurung, Lecturer, University of the Sunshine Coast and Samantha Edwards, Lecturer in Nursing, University of the Sunshine Coast

This article is republished from The Conversation under a Creative Commons license. Read the original article.

Caregiving, Dementia, Inspirational quotes & videos, International Campaigns, International Policies, Research & Best Practice, Therapeutic Activities

Personhood

Posted on March 21, 2019November 1, 2019 by Joanna Sun

Reading up on all the news, reports and discussions on the aged care royal commission, it makes me wonder if personhood is forgotten in dementia care. Recognition, respect and trust is not rocket science and that’s just common sense. What’s happened to aged care? Why is it that people living with dementia are now being objectified, disrespected and feared in aged care. How did we go so wrong?

Ageing & Culture, Caregiving, Dementia, International Policies, Research & Best Practice

Aged care failures show how little we value older people – and those who care for them

Posted on March 9, 2019November 1, 2019 by Joanna Sun

Our society should ensure older people remain employed and engaged in their communities, rather than pushed to the margins.
Shutterstock

Bridget Laging, La Trobe University; Amanda Kenny, La Trobe University, and Rhonda Nay, La Trobe University

As the royal commission begins investigating the failures of the residential aged care sector, it is important such a review also considers the broader socio-political factors that have contributed to this crisis.

The commission needs to go beyond the institutional problems at individual aged care facilities, as these are a symptom of a much broader rejection of ageing in society and marginalisation of older people.

Negative stereotyping of older people is reinforced in the media, and this both informs and reflects societal attitudes. In Western society especially, we fear dependency, invisibility and dying. Aged care is a silo of these fears. And until it affects us personally, we ignore it.

How older people are marginalised in society

We have an expiry date in our society. This is not the date we die, but a time when our skills and knowledge are no longer considered to be valid or useful. Our value is largely determined by our economic contributions to society. But for many older people, this is difficult to demonstrate because they’re no longer in the workforce.

The economic impact of societal rejection of ageing is significant. Modelling by Price Waterhouse Cooper indicates that Australia’s gross domestic product would increase by almost 5% if people were supported to work longer. And data from the Australian Bureau of Statistics reveal that many Australians would like to retire later if they could.

Yet, there is evidence that older people are routinely denied work. In 2016, Age Discrimination Commissioner Susan Ryan said there was an urgent need to “tackle the discrimination that forces people out of work years before they want to leave”.

While older people should be supported to work longer if they wish, over half of Australians between the ages of 65 and 80 report a moderate or severe disability, resulting in greater dependency. A 2017 study of late-life dependency published in The Lancet found that, on average, older people will require 24-hour care for 1.3 to 1.9 years of their lives.

However, it is important that older people are not considered redundant in their societal role when dependency increases.

Aged care workers are also undervalued

Residential aged care facilities fulfil an essential role in our society. Yet, our recent ethnographic study in two residential aged care facilities in Victoria shows how this role has been compromised by an under-skilled, under-valued and overworked aged care workforce.

Older people were exposed to a revolving door of anonymous workers, significantly reducing opportunities for teamwork and fostering relationships between staff and residents. In one of the not-for-profit facilities, a single registered nurse was responsible for the care of 73 residents. This contributed to the delegation of an increasing range of tasks to unregistered personal care assistants with minimal training and delays in recognising signs of health deterioration among residents.

A reliance on general practitioners also increased the likelihood of hospital transfer. And hospital transfers can sometimes prove harmful, with previous studies showing that the noisy, fast-paced environment, bright lights and anonymous faces can have a negative impact on residents, particularly those with dementia.

Within the healthcare sector, aged care has the lowest status of all specialty areas amongst nurses and doctors. Recruiting appropriately qualified and skilled people to work in aged care is thus a constant challenge. Australia is expected to increasingly rely on imported labour to staff its aged care sector in the near future.

Ways to fix the system

Encouraging more healthcare professionals to enter the aged care sector will require a multi-pronged approach, starting with finding ways to engender more professional respect for those working in the field.

Greater emphasis also needs to be placed on improving the gerontological expertise of aged care workers. This can be strengthened by prioritising aged care in medical school education and recognising “nursing home” care as a specialist medical area. It is also imperative that personal care assistants receive greater recognition of the roles and duties they perform.

Registration of personal care assistants as third-tier health care professionals is well overdue to ensure better oversight of their training and scope of their practice.

We also need to recognise the importance of human connection in residential aged care facilities. This requires strategies to build better relationships between residents and staff, and developing a formula for more accurate staffing allocations that reflect the real time commitments involved in aged care.

Who bears the ultimate responsibility?

It’s not enough to be shocked by the aged care scandals uncovered by the media and the decision to appoint a royal commission to investigate. We must also make older people, their contributions and end-of-life needs more visible. Increased funding and oversight will only come when we collectively say it’s important.

It is incumbent on us to ensure that residential aged care facilities do not operate as holding bays for the silenced, or wastelands for the discarded, where the occupants are expected to demand nothing and be as little cost to society as possible.

We have an opportunity to reconstruct the delivery of residential aged care. Let’s begin with the end in mind: a society that not only values older people, but values the resources required to provide the care they need and deserve.

Bridget Laging, PhD Candidate, La Trobe University, La Trobe University; Amanda Kenny, Violet Marshman Professor of Rural Health, La Trobe University, and Rhonda Nay, Emeritus Professor La Trobe University, La Trobe University

This article is republished from The Conversation under a Creative Commons license. Read the original article.

Caregiving, Dementia, Research & Best Practice, Therapeutic Activities

Chemical restraint has no place in aged care, but poorly designed reforms can easily go wrong

Posted on March 6, 2019November 1, 2019 by Joanna Sun

Chemical restraint occurs more often than we think in Australia’s aged care system.
From shutterstock.com

Juanita Westbury, University of Tasmania

Last month the aged care minister Ken Wyatt announced he would introduce regulations to address the use of “chemical restraint” in residential aged care – a practice where residents are given psychotropic drugs which affect their mental state in order to “control” their behaviour.

Psychotropic medications used as “chemical restraints” are antipsychotics, antidepressants, anti-epileptics and benzodiazepines (tranquilisers).

Wyatt followed this announcement this month with a A$4.2 million funding pledge to better monitor care in nursing homes through mandatory “quality indicators”, and including one covering medication management.

Of course, you would be hard pressed to find a staff member admitting to controlling a resident by giving them a tablet. Instead, most staff would stress that medication was given to calm or comfort them.

But our research shows psychotropic use is rife in Australia’s aged care system.

Reforms are desperately needed, but we need to develop the right approach and learn from countries that have tried to regulate this area – most notably the United States and Canada.

What’s the problem with antipsychotic drugs?

Antipsychotic drugs such as risperidone and quetiapine are often used to manage behavioural symptoms of dementia.

But large reviews conclude they don’t work very well. They decrease agitated behaviour in only one in five people with dementia. And there is no evidence they work for other symptoms such as calling out and wandering.

Due to their limited effect – and side effects, including death, stroke and pneumonia – guidelines stress that antipsychotics should only be given to people with dementia when there is severe agitation or aggression associated with a risk of harm, delusions, hallucinations, or pre-existing mental illness.

The guidelines also state antipsychotics should only be given when non-drug strategies such as personalised activities have failed, at the lowest effective dose, and for the shortest period required.

The high rates of antipsychotic use in Australian aged care homes indicates the guidelines aren’t being followed.

In our study of more than 12,000 residents across 150 homes, we found 22% were taking antipsychotics every day. More than one in ten were were charted for these drugs on an “as required” basis.

We also found large variations in use between nursing homes, ranging from 7% to 44% of residents. How can some homes operate with such low rates, whereas others have almost half their residents taking antipsychotic medications?

Regulations to reduce chemical restraint

Of all countries, the US has made the most effort to address high rates of antipsychotic use.

After reports in the 1980s highlighting poor nursing home care, Congress passed the Omnibus Budget Reconciliation Act which sets national minimum standards of care, guidelines to assist homes to follow the law, and surveyors to enforce it.

For residents with dementia and behavioural symptoms, the regulations require documentation of the behaviour, a trial of non-drug strategies such as activity programs, and dose reductions after six months.

Prescribing practices vary widely between institutions.
From shutterstock.com

Homes that don’t meet these regulations are subject to a series of sanctions, ranging from financial penalties to closure.

The regulations were initially associated with substantial declines in antipsychotic use. By 1995 only 16% of residents were taking them.

But average rates of use rose to 26% by 2010. And in 2011, a Senate hearing found 83% of claims for antipsychotics in nursing homes were prescribed for unlicensed use.

This led advocates to conclude the regulations and surveyor guidance were ineffective.

Quality indicators to reduce chemical restraint

Another way to reduce antipsychotic use in aged care homes is by mandatory quality indicators, along with public reporting. The US introduced this in 2012. A similar system was instituted in Ontario, Canada, in 2015.

Measures are essential for quality improvement. But they can also lead to unintended consequences and cheating.

In the US, antipsychotic rates for people with dementia has allegedly reduced by 27% since the start of their quality indicator program.

But those diagnosed with schizophrenia were exempt from reporting. Then the percentage of residents listed as having schizophrenia doubled from 5% to nearly 10% of residents within the first few years of the initiative. So 20% of the reduction was probably due to intentional mis-diagnosis rather than an actual decrease in antipsychotic use.

A recent US study has also shown that the use of alternative sedating medications not subject to reporting, specifically anti-epileptic drugs, has risen substantially as antipsychotic use declined, indicating widespread substitution.

In Ontario, the use of trazadone, a sedating antidepressant, has also markedly increased since its antipsychotic reporting program began.

Reporting issues

In the US, nursing homes self-report indicators. A recent study compared nursing home data with actual prescribing claims, concluding that homes under-reported their antipsychotic prescribing, on average, by 1 percentage point.

Public reporting is often also time-consuming, with some researchers arguing that time spent managing quality indicators may be better spent providing care for residents.

Where to now?

Awareness of a problem is the first step to addressing it, and chemical restraint is a key issue coming to light in the aged care royal commission.

The proposed regulations and new quality indicator will allow homes and regulators to monitor the use of chemical restraint, but more importantly, should be used to assess the impact of training and other strategies to ensure appropriate use of psychotropic medications.

But to meet their full potential, these programs need to be carefully designed and evaluated to ensure that cheating, under-reporting and substitution does not occur like it did in North America.

Juanita Westbury, Senior Lecturer in Dementia Care, University of Tasmania

This article is republished from The Conversation under a Creative Commons license. Read the original article.

Wakefulness Centers Degenerate in Alzheimer’s Brains

Studies Point to Role of Tau Protein in Alzheimer’s Symptoms

Press Release July 2019| University of Exeter – Apathy: The forgotten symptom of dementia

Apathy is the most common neuropsychiatric symptom of dementia, with a bigger impact on function than memory loss – yet it is under-researched and often forgotten in care.

Who does what in aged care?

Carers cost less than nurses

But nursing care is worth the investment

What are the solutions?

How older people are marginalised in society

Aged care workers are also undervalued

Ways to fix the system

Who bears the ultimate responsibility?

What’s the problem with antipsychotic drugs?

Regulations to reduce chemical restraint

Quality indicators to reduce chemical restraint

Reporting issues

Where to now?

Press Release
July 2019| University of Exeter – Apathy: The forgotten symptom of dementia