Enteral Nutrition for Older Adults in Healthcare Communities

Multi-omics research in sarcopenia: Current progress and future prospects

Sarcopenia is a systemic disease with progressive and generalized skeletal muscle dysfunction defined by age-related low muscle mass, high content of muscle slow fibers, and low muscle function. Muscle phenotypes and sarcopenia risk are heritable; however, the genetic architecture and molecular mechanisms underlying sarcopenia remain largely unclear. In recent years, significant progress has been made in determining susceptibility loci using genome-wide association studies. In addition, recent advances in omics techniques, including genomics, epigenomics, transcriptomics, proteomics, and metabolomics, offer new opportunities to identify novel targets to help us understand the pathophysiology of sarcopenia. However, each individual technology cannot capture the entire view of the biological complexity of this disorder, while integrative multi-omics analyses may be able to reveal new insights. Here, we review the latest findings of multi-omics studies for sarcopenia and provide an in-depth summary of our current understanding of sarcopenia pathogenesis. Leveraging multi-omics data could give us a holistic understanding of sarcopenia etiology that may lead to new clinical applications. This review offers guidance and recommendations for fundamental research, innovative perspectives, and preventative and therapeutic interventions for sarcopenia.

Malnutrition and its associated factors among elderly Chinese with physical functional dependency

OBJECTIVE

To assess the prevalence and to identify the associated factors of malnutrition among elderly Chinese with physical functional dependency.

DESIGN

Face-to-face interviews using standardised questionnaires were conducted to collect demographic information, health-related issues and psychosocial status. Physical function was measured by the Barthel Index (BI), and nutrition status was assessed by the Mini Nutritional Assessment-Short Form. Multivariate binary logistic regression was used to assess associated factors of malnutrition.

SETTING

China.

PARTICIPANTS

A total of 2323 participants (aged ≥ 60 years) with physical functional dependency in five provinces in China were enrolled using a multistage cluster sampling scheme.

RESULTS

The prevalence of malnutrition was 17·9 % (95 % CI 16·3, 19·4). Multivariable binary logistic regression revealed the independent risk factors of poor nutrition status were being female, older age, lower educational status, poor hearing, poor physical functional status, lack of hobbies, low religious participation, poor social support, lack of social participation and changes in social participation. The study found that the most significant independent risk factor for malnutrition was complete physical functional dependence (OR 4·46, 95 % CI 2·92, 6·82).

CONCLUSIONS

The findings of the study confirm that malnutrition and the risk of malnutrition are prevalent in Chinese older adults with physical functional dependency. In addition to demographic and physical health-related factors, psychosocial factors, which are often overlooked, are independently associated with nutrition status in Chinese older adults with physical functional dependency. A holistic approach should be adopted to screen for malnutrition and develop health promotion interventions in this vulnerable population.

Development of enteral homemade diets for elderly persons receiving home care and analysis of macro and micronutrient composition

Abstract Objective: the development and analysis of the macro and micronutrient composition of homemade enteral diets. Method: A standard homemade enteral diet was developed at three caloric concentrations - 1500, 1800 and 2100 Kcal. After preparation and testing of viscosity, stability, odor and color, plus evaluation of cost, the chemical composition of the nutrients of the diets were analytically determined. Folic acid, vitamin D and vitamin B12 values were calculated using chemical composition tables. The results were compared with recommended nutritional standards for the elderly. Result: The diets exhibited normal macronutrient distribution. The 1500 caloric level presented some mineral and vitamin deficiencies. Suitable values were obtained at the other caloric levels for all minerals except magnesium. There were appropriate levels of all the vitamins in the 2100 Kcal diet, while vitamin E, D and B6 levels were below the recommended dietary allowances in the 1800 Kcal diet. Conclusion: The standard homemade enteral diets studied can contribute to the food and nutritional safety of elderly persons undergoing home care, if all are supplemented with magnesium and the 1800 Kcal diet is supplemented with vitamin E, D and B6. The 1500 Kcal diet was not nutritionally safe in terms of micronutrients.

The basis, ethics and provision of palliative care for dementia: A review

Interest in palliative care for people with dementia has been around for over two decades. There are clinical and ethical challenges and practical problems around the implementation of good quality palliative care in dementia. This narrative review of the literature focuses on the rationale or basis for services, some of the ethical issues that arise (particularly to do with artificial nutrition and hydration) and on the provision and implementation of services. We focus on the most recent literature. The rationale for palliative care for people with dementia is based on research and on an identified need for better clinical care. But the research largely demonstrates a paucity of good quality evidence, albeit particular interventions (and non-interventions) can be justified in certain circumstances. Numerous specific clinical challenges in end-of-life care for people with dementia are ethical in nature. We focus on literature around artificial nutrition and hydration and conclude that good communication, attention to the evidence and keeping the well-being of the person with dementia firmly in mind will guide ethical decision-making. Numerous challenges surround the provision of palliative care for people with dementia. Palliative care in dementia has been given definition, but can still be contested. Different professionals provide services in different locations. More research and education are required. No single service can provide palliative care for people with dementia.

Conceptual issues in 'cognitive impairment'

PURPOSE OF REVIEW

This review aims to set out the recent writings relevant to acquired cognitive impairment in an attempt to reveal some of the underlying conceptual issues.

RECENT FINDINGS

The huge strides being taken to diagnose Alzheimer's and other dementias early, including pre-symptomatically, raise important ethical issues. But there are broader conceptual issues too, around the notion of normal ageing. New techniques, such as deep brain stimulation, raise further ethical concerns, but may be relevant to deeper philosophical issues. Meanwhile, capacity continues to be of interest to researchers in the field of cognitive impairment, but the 'United Nations Convention on the Rights of Persons with Disabilities' is raising questions about our understanding of the nature of capacity. These new ideas reflect shifts in our understanding of personhood. How we think about the person is relevant to how we think about dilemmas over artificial nutrition and is also pertinent to debates about rational suicide in response to a diagnosis of dementia. A person-centred view allows us to think more broadly about cognitive impairment.

SUMMARY

Cognitive impairment challenges us to think broadly, to see such impairment as something to be dealt with in the context of our multifaceted life-worlds.