Daily Archives: 26 June 2024

Traumatic Brain Injury Affects One in Every Eight Elderly Americans

A recent study conducted by UC San Francisco alongside the San Francisco VA Health Care System has revealed that approximately 13% of older adults are diagnosed with traumatic brain injury (TBI). This figure highlights the vulnerability of this population to such injuries. Typically, these injuries arise from falls from ground level. The research involved monitoring around 9,200 Medicare enrollees, who had an average age of 75 at the beginning of the study. The findings, which will be published in JAMA Network Open on May 31, 2024, present some surprising contrasts to earlier studies focused on younger demographics.

Interestingly, the study found that being female, white, in better health, and of a higher socio-economic status increased the risk of TBI among older adults. This marks a departure from earlier research, which typically found higher incidences of TBI in males, non-whites, and those from lower socio-economic backgrounds. In this study, of the 1,148 participants who experienced a TBI, 64% were female, and 89% were white. Furthermore, a significant portion of these individuals were among the wealthiest, with 31% belonging to the highest wealth quartile.

The researchers, led by Erica Kornblith, PhD, of the UCSF Department of Psychiatry and the San Francisco VA Health Care System, speculated that the more active lifestyles of healthier, wealthier seniors might expose them to more significant risks for TBI. Their findings also suggested that older adults with more robust health at the study’s outset were more likely to engage in activities that could lead to falls, the predominant cause of TBI in this group. Conversely, those who were less mobile or had cognitive impairments had fewer opportunities to sustain such injuries.

This study’s findings challenge some established notions about the demographic patterns of TBI in older people, highlighting that even relatively healthier and wealthier people are not immune to these risks. Moreover, the results underscore the importance of developing targeted guidelines for post-discharge care and ongoing research into preventing repeat injuries and TBI-related dementia among this growing segment of the population.

Senior author Raquel Gardner, MD, emphasized the need for evidence-based strategies to manage the care of the large number of elderly individuals with TBI, particularly in light of their potential to develop severe conditions such as dementia, Parkinson’s disease, seizures, cardiovascular disease, and psychiatric conditions including depression and anxiety.

The implications of these findings are significant, particularly at a time when physical activity is strongly advocated as a means to mitigate or delay the onset of dementia in the elderly. While the benefits of physical activity are well-documented in terms of neuroprotection, this study highlights the need for balanced approaches that enhance safety and reduce the likelihood of falls among older adults, especially as they age and experience physical or cognitive decline. This nuanced understanding of TBI risk factors among older adults calls for a recalibration of health and safety protocols to better accommodate the complexities of ageing in today’s sociopolitical and healthcare environments.

More information: Erica Kornblith et al, Incidence of Traumatic Brain Injury in a Longitudinal Cohort of Older Adults, JAMA Network Open. DOI: 10.1001/jamanetworkopen.2024.14223

Journal information: JAMA Network Open Provided by University of California – San Francisco

Enhancing Caregiver Wellbeing through Supervised Physical Exercise

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The caregiving demographic primarily comprises older and middle-aged women from the working class. They face a high prevalence of lower back pain that can lead to psycho-affective issues and a diminished quality of life. Addressing the needs of these caregivers has long been a societal concern. Researchers from the Ageing On group at the University of the Basque Country (UPV/EHU) took on the challenge of supporting these caregivers, asking themselves: “How can we best care for those who care?”

The Ageing On group, known for developing physical exercise programmes to maintain the functional abilities of older adults, recognised a parallel need among caregivers. Ana Rodriguez-Larrad, a researcher involved in the initiative, noted, “We realised that caregivers of the elderly, who often suffer from high rates of lower back pain, could benefit significantly from tailored physical exercise programmes to improve their well-being.” Over several years, interventions were meticulously designed and evaluated, targeting factors crucial to caregivers’ well-being.

“We studied over 200 caregivers to pinpoint their challenges and identify effective solutions,” explained Rodriguez-Larrad. Drawing from this research, the team piloted a programme to alleviate lower back pain among six organisations’ staff. Ander Espin-Elorza, another researcher involved, detailed the programme’s structure: “Over twelve weeks, participants engaged in team-based exercises incorporating simple strength routines using body weight and resistance bands. The training was progressively tailored to each individual, focusing on moderate intensity levels.”

The tailored physical exercise program yielded promising results. Participants experienced a significant reduction in lower back pain by the end of the program. Those who attended at least half of the sessions reported improvements in psycho-affective aspects, including reduced depression risk, decreased reliance on hypnotic and anti-anxiety medications, and an overall enhancement in their quality of life. While subsequent assessments conducted 48 weeks post-program indicated a slight decrease in the benefits related to lower back pain, the findings underscored the importance of sustained physical exercise for long-term well-being maintenance.

The Ageing On group’s unique approach to supporting the wellbeing of caregivers, a group often overlooked in discussions about elderly care, is a testament to their innovative thinking and dedication to the cause. By adapting their expertise in physical exercise for older adults to meet the specific needs of caregivers, the researchers have not only alleviated physical discomfort but also addressed psycho-affective challenges that significantly impact quality of life. This holistic approach underscores the value of ongoing support and tailored interventions in enhancing the lives of those who devote themselves to caring for others.

More information: Ander Espin et al, Videoconference-Supervised Group Exercise Reduces Low Back Pain in Eldercare Workers: Results from the ReViEEW Randomised Controlled Trial, Journal of Occupational Rehabilitation. DOI: 10.1007/s10926-024-10182-2

Journal information: Journal of Occupational Rehabilitation Provided by University of the Basque Country

Quick Five-Minute Assessment Enhances Dementia Care in Primary Settings

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The challenge of underdiagnosing dementia, particularly among Black and Hispanic populations, remains a significant issue in healthcare. A groundbreaking study recently published in Nature Medicine introduces a straightforward, five-minute test that, combined with tailored recommendations integrated into electronic medical records, has led to a threefold increase in the diagnosis and management of dementia in a primary care setting compared to a control group. This new method, known as the “5-Cog paradigm,” was developed by experts at the Albert Einstein College of Medicine and the Montefiore Health System. It has markedly improved the identification and initial treatment of mild cognitive impairment and dementia.

Joe Verghese, M.B.B.S., the study’s senior author and the creator of the 5-Cog paradigm, highlighted the persistent issue of undiagnosed dementia within primary care environments, noting that even when it is identified, it often remains untreated. He explained that traditional methods for detecting cognitive impairment are time-consuming and costly and generally require a neurologist’s involvement. Moreover, since existing assessments were primarily designed for white populations, they fail to accommodate cultural nuances. The 5-Cog paradigm was designed to overcome these limitations, offering a culturally sensitive, efficient, and cost-effective diagnostic tool.

Dr Verghese, a professor and director of the division of cognitive and motor ageing at the Saul R. Korey Department of Neurology and several other prestigious positions at Einstein and Montefiore, alongside Emmeline Ayers, M.P.H., who is the last author of the paper and a principal staff scientist in the department, have significantly contributed to this advancement. The 5-Cog assessment includes a picture-based memory impairment screening, a symbol-matching task, and verification of cognitive complaints by the patient, making it a tool that can be effectively administered by minimally trained non-physician personnel. These staff members can then quickly relay critical information to primary care providers.

The research encompassed 1,201 older adults from socioeconomically disadvantaged neighbourhoods in the Bronx, with a median age of 72.8, most of whom were Black or Hispanic/Latino. Participants were randomly assigned to receive the 5-Cog assessment or placed in a control group without testing. Results from a 90-day follow-up showed that individuals assessed with the 5-Cog paradigm were three times more likely to experience enhanced dementia care actions. These included receiving new diagnoses of mild cognitive impairment or dementia, referrals to specialists, and appropriate medication.

Dr. Verghese expressed optimism that the study’s findings could lead to significant changes in primary care practices, enhancing the diagnosis and treatment of older individuals with mild cognitive impairment or dementia. This advancement promises to improve the quality of life for many patients and reduce the long-term healthcare burdens associated with untreated mental disorders.

More information: Joe Verghese et al, Non-literacy biased, culturally fair cognitive detection tool in primary care patients with cognitive concerns: a randomized controlled trial, Nature Medicine. DOI: 10.1038/s41591-024-03012-8

Journal information: Nature Medicine Provided by Albert Einstein College of Medicine

Unveiling the Role of B12 Deficiency in Inflammation: A Hidden Trigger Revealed

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Vitamin B12 is an indispensable nutrient crucial for various physiological processes. It is pivotal in maintaining overall health. Its deficiency often stems from inadequate dietary intake, particularly among vegetarian and vegan populations, or poor absorption within the body. This deficiency can lead to a spectrum of complications, including significant neurological disorders. While previous research has hinted at vitamin B12’s potential anti-inflammatory properties, the exact nature of this relationship still needs to be understood.

Recently, a team of researchers from Spain embarked on a study investigating how vitamin B12 impacts levels of key inflammatory molecules in the body, specifically interleukin (IL)-6 and C-reactive protein (CRP). Rosa M. Lamuela-Raventós, co-corresponding author and Professor of Nutrition, Food Sciences and Gastronomy at INSA-University of Barcelona, and Inés Domínguez López, a predoctoral researcher at the University of Barcelona and co-first author, explained the motivations behind their research.

“Chronic inflammation is a key player in a wide array of diseases. Gaining a deeper understanding of how vitamin B12 status influences inflammation could have far-reaching implications for disease prevention and management,” Domínguez López stated. IL-6 and CRP are widely recognized markers of inflammation in clinical settings, with elevated levels linked to various inflammatory conditions and chronic diseases. Establishing the connection between these inflammatory markers and vitamin B12 levels could provide crucial insights for developing novel therapeutic strategies.

The study drew upon samples from a subset of participants in PREDIMED, a large clinical trial in Spain evaluating the Mediterranean diet’s impact on cardiovascular disease prevention. Analysis of serum vitamin B12 levels and inflammatory marker concentrations revealed a notable correlation. Marta Kovatcheva, a co-first author and postdoctoral researcher at the Institute for Research in Biomedicine (IRB Barcelona), elaborated, “Our findings indicate that higher vitamin B12 levels generally correspond to lower inflammatory marker levels—a relationship we describe as inverse.”

Kovatcheva underscored the novelty of the study, which did not specifically target individuals with vitamin B12 deficiency but revealed significant implications. “Our findings present a new perspective on the consequences of vitamin B12 deficiency. While its harmful effects are well-documented, our study uncovers a novel relationship that illuminates previously unexplained symptoms, such as neurological defects associated with B12 deficiency.”

Domínguez López stressed the importance of expanding research cohorts to validate their findings across broader populations. “Future studies should consider sex-specific differences and investigate specific conditions like B12 deficiency, infection, or aging in humans,” she suggested.

In addition to human studies, the research team explored similar associations between vitamin B12 and inflammatory markers in naturally ageing mice. This parallel investigation offers insights into underlying biological mechanisms governing the inverse correlation. “Understanding the biological basis of our findings in mice could inform dietary and clinical recommendations for humans in the future,” noted Lamuela-Raventós.

Interestingly, the researchers noted a difference between humans and mice concerning B12 deficiency with age. “Unlike humans, mice do not typically become B12 deficient as they age,” Kovatcheva remarked. This observation suggests that studying mouse models could offer insights into preventing B12 deficiency in older adults.

Looking to the future, the team is eager to explore the vitamin B12-inflammation link within specific high-inflammation conditions such as infection, obesity, and irritable bowel syndrome. “Investigating whether vitamin B12 supplementation can play a role in managing these conditions is a promising direction for future research,” Lamuela-Raventós commented, emphasizing the potential practical applications of their findings.

The study underscores vitamin B12’s multifaceted role in health, particularly its potential to modulate inflammation—a pivotal factor in numerous chronic diseases. By elucidating these connections, the research opens doors to innovative approaches for disease prevention and therapeutic interventions centred around optimizing vitamin B12 status.

More information: Inés Domínguez-López et al, Higher circulating vitamin B12 is associated with lower levels of inflammatory markers in individuals at high cardiovascular risk and in naturally aged mice, Journal of the Science of Food and Agriculture. DOI: 10.1002/jsfa.12976

Journal information: Journal of the Science of Food and Agriculture Provided by Society of Chemical Industry