Showing posts with label frailty. Show all posts
Showing posts with label frailty. Show all posts
Friday, August 28, 2026
Tuesday, August 4, 2026
How much coffee is safe for the heart? Doctors explore the benefits and risks of caffeine
Until research tells me EXACTLY how much coffee will prevent dementia and Parkinsons I'll continue my daily 12 cup pot of coffee!
I'm still doing a 12 cup pot of coffee daily to prevent Parkinsons and frailty! Much more important than any problems it can cause.
How coffee protects against Parkinson’s Aug. 2014
Coffee May Lower Your Risk of Dementia Feb. 2013
Coffee drinkers rejoice! Drinking coffee could lower the risk of Alzheimer’s disease
And this: Coffee's Phenylindanes Fight Alzheimer's Plaque December 2018
New research suggests drinking coffee may reduce the risk of frailty May 2025
I think I'm in this category: I never get
the jitters or flushed skin.
Genetics determine how much coffee you can drink before it goes wrong
I'm doing a 12 cup pot of coffee a day with full fat milk to lessen my chances of dementia and Parkinsons. Tell me EXACTLY how much coffee to drink for that and I'll change. Yep, that is a lot more than the 400mg. suggested limit, I don't care! Preventing dementia and Parkinsons is vastly more important than whatever problems it can cause!
Of course, your fuckingly incompetent? doctor did nothing with this from 3+ years ago! And still hasn't created a 24 hour coffee station
Dementia risk could drop by drinking just one shot daily of common beverage August 2023
This line is great: The findings indicate that even the Espresso Martini cocktail contains the espresso's beneficial compounds - and can contribute to staving off dementia.
The latest here:
How much coffee is safe for the heart? Doctors explore the benefits and risks of caffeine
Coffee has been associated with key cardiovascular benefits over the years. But how much is too much? It has remained unclear just how many cups of coffee a person can drink on a daily basis without overdoing it.
According to a scientific statement published in Circulation, adults can safely consume up to five cups of caffeinated coffee—good for approximately 400 mg of caffeine—each day. In fact, drinking that much coffee is linked to multiple benefits, including a lower risk of heart failure, heart disease and even stroke.
Higher daily doses of caffeine, however, may increase a person’s risk of high blood pressure or lead to heart rhythm issues. Researchers specifically pointed to energy drinks and their high caffeine levels as a potential health hazard.
The new scientific statement was prepared by a volunteer writing group with support from the American Heart Association (AHA). Co-authors included specialists from the fields of cardiology, nutrition, epidemiology and public health. The scientific statement does not include specific treatment recommendations, but it will help guide future recommendations developed by the AHA and other medical societies.
“Although research suggests that caffeine consumption may be associated with certain cardiovascular benefits for some people, it’s important to remember that there is no ‘one-size-fits-all’ strategy for safe caffeine consumption,” wrote electrophysiologist Gregory M. Marcus, MD, chair of the statement’s writing group and a professor of medicine at the University of California, San Francisco School of Medicine. “People can respond very differently to caffeine based on various factors, such as age, medications, underlying health conditions, genetics and how quickly their bodies metabolize it. What may be a reasonable amount for one person could cause unwanted effects in another, such as heart palpitations, anxiety or sleep disruption. That's why it’s important to pay attention to how your body responds to caffeine and talk with your healthcare team about what is right for you.”
Tuesday, July 28, 2026
One overlooked sign of aging may reveal dementia risk years earlier
Make damn sure your competent? doctor has EXACT PROTOCOLS that prevent frailty post stroke! Doesn't have them; fire him/her and replace your incompetent board of directors!
- frailty (38 posts to January 2018)
One overlooked sign of aging may reveal dementia risk years earlier
A common but often overlooked condition could help identify people at risk of developing dementia years before symptoms appear, according to new research.
Researchers have found that frailty—a medical condition characterized by reduced physical resilience and increased vulnerability to illness—was linked to an earlier onset of dementia, even among people with relatively low levels of Alzheimer’s-related brain pathology.
The study, published in the Journal of Neurology, Neurosurgery & Psychiatry, analyzed data from 1,614 community-dwelling older adults who participated in the Rush Memory and Aging Project in Illinois.
Participants were followed for nearly 24 years on average, allowing researchers to examine how frailty influenced the age at which dementia was diagnosed.
Frailty was assessed using a frailty index, which takes into account a wide range of health and functional measures. Researchers classified participants with scores of 0.25 or higher as frail.
The results showed that frailty was associated with developing dementia at a younger age. Overall, frail individuals received a dementia diagnosis approximately two to three years earlier than those who were not frail.
“The best approach to preventing or reducing frailty is a combination of regular physical activity, particularly strength training, and a diet that ensures adequate protein intake,” study co-author Dr. David Ward, a research fellow in aging and geriatric medicine at the Centre for Health Services Research, Faculty of Medicine at the University of Queensland, told Newsweek.
Ward also advised regularly reviewing medications with a doctor and discussing whether chronic conditions could be managed more effectively.
While the study did not prove that reversing frailty prevents dementia, Ward said the findings suggest that maintaining physical health and resilience “could potentially help delay when dementia becomes clinically apparent.”
The association was observed across men and women, regardless of education level or whether participants carried the APOE ε4 gene, one of the strongest known genetic risk factors for Alzheimer’s disease.
To better understand the relationship, the researchers also examined a subgroup of 906 participants who underwent brain autopsies after death.
They compared frailty levels with the amount of neuropathology present in the brain, including markers associated with Alzheimer’s disease and other forms of dementia.
Among people who had relatively low levels of dementia-related brain pathology, frailty was linked to an almost 10 percent earlier age of dementia diagnosis.
Interestingly, the same association was not seen among those with intermediate or high levels of brain pathology.
The findings suggest that frailty may contribute to dementia through pathways that operate independently of the underlying brain changes typically associated with neurodegenerative disease.
In other words, a person’s overall physical health and resilience may influence when dementia symptoms become noticeable, even when brain pathology alone would not fully explain the diagnosis.
Ward said frailty often develops gradually, meaning the earliest signs can be easy to miss.
“These can include walking more slowly, declining strength, reduced activity, persistent tiredness or taking longer to recover from illness,” he said.
Ward also advised anyone experiencing ongoing changes in their physical or day-to-day functioning—particularly if they are affecting routine activities—to speak with a doctor.
“A doctor can assess frailty and identify potentially treatable contributors,” he said.
Reference
Strating TR, Haapanen MJ, Ma D, et al. Frailty and accelerated dementia onset in genetic, sociodemographic and neuropathologic subgroups Journal of Neurology, Neurosurgery & Psychiatry Published Online First: 21 July 2026. doi: 10.1136/jnnp-2026-338460
Contact Newsweek editors on this story: Kara Dolman and Emma Lee-Sang
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Monday, June 22, 2026
Development and validation of a risk identification model for frailty in stroke survivors: new evidence from CHARLS
This doesn't get anyone recovered, does it? SO, FUCKING USELESS FOR SURVIVORS, YOU'RE ALL FIRED!
Where are the protocols that prevent frailty? That is the research that is needed, not this useless crapola!
Development and validation of a risk identification model for frailty in stroke survivors: new evidence from CHARLS
Summary
Background
Stroke survivors with frailty exhibit elevated rates of complications, mortality, disability, and hospital readmission. As frailty represents an early, reversible, and preventable stage of disability, developing a reliable risk identification model is essential. This study aimed to develop and validate a risk model for frailty among stroke survivors using data from the China Health and Retirement Longitudinal Study (CHARLS).
Methods
Data were extracted from the CHARLS database. Stroke survivors were identified and assessed across 30 indicators, including socio-demographic, physical, psychological, cognitive, and social variables. The data were divided by year, with 2013 and 2015 as the development set and 2018 and 2020 as the validation set. Least Absolute Shrinkage and Selection Operator (LASSO) regression was employed for variable selection. Logistic regression models were then developed based on univariate and LASSO-selected predictors. A nomogram was constructed to facilitate risk visualization. Calibration curves and decision curve analysis were used to evaluate model calibration and clinical utility.
Findings
A total of 2,188 stroke survivors from the 2013, 2015, 2018, and 2020 follow-ups were included. Approximately 68% exhibited symptoms of frailty. Significant group differences were found by age, marital status, living alone, hypertension, and self-reported health status (all p < 0.05). Age, poor sleep quality, impaired balance, nervousness/anxiety, and living alone emerged as independent risk factors for frailty. The area under the receiver operating characteristic (ROC) curve for the development and validation sets was 0.833 and 0.838, respectively. Interpretation: The model derived from CHARLS data identified 5 readily assessable predictors (age, sleep quality, balance, anxiety, and living alone), allowing for early screening of frailty without specialized instruments. It demonstrated superior discriminatory performance compared to models from smaller-sample studies, supporting targeted interventions and providing valuable insights for identifying high-risk stroke survivors.
Interpretation
The model derived from CHARLS data identified 5 readily assessable predictors (age, sleep quality, balance, anxiety, and living alone), allowing for early screening of frailty without specialized instruments. It demonstrated superior discriminatory performance compared to models from smaller-sample studies, supporting targeted interventions and providing valuable insights for identifying high-risk stroke survivors.
Friday, May 22, 2026
Structured Programs Physically Slow Down Biological Aging
Did your competent? doctor give you protocols on social connections, diet and exercise? NO? So, your doctor, hospital and board of directors ARE FUCKING INCOMPETENT?
Structured Programs Physically Slow Down Biological Aging
Summary: A major randomized clinical trial established that structured lifestyle interventions—such as healthy eating, regular exercise, and social activities—directly slow the biological aging process.
The study utilized data from the landmark U.S. POINTER trial to demonstrate that while self-guided wellness efforts yield minor health improvements, a structured program featuring accountability, coaching, and goal-setting significantly accelerates the reduction of systemic frailty and protects cognitive performance in aging adults.
Key Facts
- The Frailty Metric: Frailty reflects the body’s accumulated health challenges over time and serves as a vital marker for the biological aging process, tightly linked to chronic disease, disability, and mortality.
- The U.S. POINTER Trial: The two-year clinical trial monitored more than 2,100 adults between the ages of 60 and 79 who carried an increased risk for cognitive decline.
- Structure vs. Intuition: Participants were divided into two cohorts: one following a structured program packed with health coaching, rigorous goal-setting, and regular check-ins, while the other group relied on a self-guided approach to health.
- The Accountability Dividend: While both cohorts experienced improvements in their baseline health, the adults enrolled in the structured, guided program showed significantly greater reductions in biological frailty.
- Multiple Pathways to Longevity: Although the structured group showed powerful gains in cognitive performance, researchers discovered that the reduction in frailty alone did not fully account for the brain benefits, proving that multi-domain interventions unlock separate, parallel pathways to healthy aging.
- The Power of Multi-Targeting: The study reinforces growing evidence that simultaneously targeting multiple areas of health, rather than focusing on an isolated single behavior, is the ultimate key to maintaining independence and high quality of life during late-stage aging.
Source: Wake Forest University
Researchers at Wake Forest University School of Medicine found evidence of slowed aging from lifestyle behaviors like healthy eating and exercise as part of a major clinical trial.
The new finding, published in this month’s edition of The Journals of Gerontology, is based on the Alzheimer’s Association’s U.S. Study to Protect Brain Health Through Lifestyle Intervention to Reduce Risk (U.S. POINTER), which was the first large-scale clinical trial to demonstrate that accessible interventions that make up a healthy lifestyle can protect cognitive function.
“These findings suggest that adopting accessible healthy behaviors may help slow important aspects of aging,” said Mark A. Espeland, Ph.D., lead author and professor of gerontology and geriatrics and internal medicine at Wake Forest University School of Medicine.
In the two-year, randomized U.S. POINTER trial, more than 2,100 adults between the ages of 60 and 79 who were at an increased risk for cognitive decline were split into two groups. One group followed a structured program with coaching, goal setting and regular checks to incorporate health eating, regular exercise, along with brain-stimulating and social activities. The other group followed a more self-guided approach to health.
Researchers at the School of Medicine, the academic core of Advocate Health, found those that followed the structured program experienced greater improvements in overall health and frailty compared to the other group. While both groups improved their frailty scores, those that followed the structured program had greater improvement.
“This shows the benefits of taking a structured approach to a healthy lifestyle,” Espeland said. “We know exercising and eating right is going to improve our health, but making efforts to participate in programs that offer guidance and accountability could be especially effective at keeping us healthy as we age.”
While participants in the structured program also showed stronger gains in cognitive performance, researchers found that improvements in frailty alone did not fully explain the brain benefits also found in the trial, suggesting multiple pathways to healthy aging.
“The results also add to growing evidence that targeting multiple areas of health at once, rather than focusing on a single behavior may be the key to maintaining independence and quality of life later in life,” Espeland added.
Key Questions Answered:
Q: We already know that eating right and exercising is good for us, so what makes this study a breakthrough?
A: The breakthrough lies in the power of structure over intention. We all know we should be healthier, but this study proves that just trying to do it on your own isn’t enough to maximize longevity. Adults who entered a structured program with coaching and strict accountability checks physically aged slower, showing far less systemic frailty than those who tried to figure it out by themselves.
Q: What exactly is “frailty” in a medical sense, and why is it used to measure how fast I am aging?
A: Frailty isn’t just a general feeling of being weak; it is a clinical metric that tracks the sum total of all the health challenges your body has accumulated over your lifetime. It serves as a direct mirror for your biological age. The higher your frailty score, the higher your statistical risk for chronic disease, disability, and mortality. Lowering this score means you are physically slowing down the aging clock.
Q: Does fixing my physical body automatically protect my brain from cognitive decline as I age?
A: Not directly, and that was one of the most exciting twists in the data. While the structured group saw massive boosts in both body strength and brain power, the researchers found that the drop in physical frailty didn’t fully explain the cognitive upgrades. This means that a structured lifestyle acts like a multi-pronged armor—improving your physical framework while simultaneously using entirely separate, hidden biological pathways to protect your mind.
Editorial Notes:
- This article was edited by a Neuroscience News editor.
- Journal paper reviewed in full.
- Additional context added by our staff.
About this aging and neuroscience research news
Author: Kate Thayer
Source: Wake Forest University
Contact: Kate Thayer – Wake Forest University
Image: The image is credited to Neuroscience News
Thursday, May 14, 2026
The "Invisible" Stressors That May Accelerate Aging — According To A New Study by mindbodygreen
My stressors were stroke, getting fired, getting divorced and moving in the space of 8 years. Well, at age 50 I had my stroke and the result of that is making me happy for the rest of my life. Got divorced at age 58, fired at age 56, moved to Michigan alone at age 57. I think I'm pretty good at resilience.
I'm as healthy as can be post stroke, not frail at all, my finances are pretty good, allowing me to travel internationally 3 times a year.
A new 4 level condo, 7 steps between levels, will ensure I can do steps for the rest of my life and travel to Europe where bathrooms are often in the basement.
Single, not looking for marriage, that would vastly restrict my social connections and travel. No caregiving, Mom at 97 still living at home alone.
The "Invisible" Stressors That May Accelerate Aging — According To A New Study
You're eating well, moving your body, and prioritizing sleep. But according to new research1, there's a longevity factor you might be overlooking: the stability of your everyday life.
The study followed more than 15,000 older adults and found that "precarity" (a measure of instability across finances, housing, relationships, and caregiving) was a powerful predictor of frailty. In fact, this precarity index predicted aging outcomes better than income or education alone.
About the study
Frailty, characterized by physical decline, reduced energy, and increased vulnerability to illness, is one of the most reliable markers of biological aging. While we know that lifestyle factors like diet and exercise influence frailty risk, less attention has been paid to how the structure and stability of daily life might play a role.
Researchers at the University of Edinburgh set out to explore this connection using data from the English Longitudinal Study of Ageing.
They created a "precarity index" measuring instability across multiple domains: financial strain, housing security, food and energy costs, caregiving responsibilities, and relationship status. Rather than looking at a single snapshot, the team tracked how changes in these life circumstances over time related to changes in frailty.
Life instability predicted frailty better than income or education
Higher levels of precarity were consistently linked to worse frailty outcomes. But the relationship wasn't static: as people's life circumstances changed, so did their frailty levels. When instability increased, frailty worsened; when circumstances stabilized, health outcomes improved.
The strongest drivers of accelerated aging weren't abstract concepts. They were tangible, everyday stressors: housing insecurity, difficulty affording food and energy costs, and ongoing financial strain.
The study also revealed nuance around caregiving and social connection. Some caregiving was associated with better outcomes, but high-intensity, unsupported caregiving appeared harmful. Living alone or losing a partner was also linked to worse frailty trajectories, reinforcing the protective role of social stability.
How to build stability as a longevity tool
The research suggests that reducing chronic life stressors may support healthy aging just as much as optimizing diet and exercise. Here's how to apply these findings:
Treat stability like a health habit: Reducing ongoing stressors like financial unpredictability and housing strain may support long-term health just as much as nutrition and movement.
Zoom in on "invisible" stress: Food insecurity, high utility costs, and unstable housing had some of the strongest links to frailty. Small, chronic stressors add up over time.
Think long-term about structure: Retirement planning, housing security, and building support systems are longevity tools, not just financial goals.
Right-size caregiving: Some caregiving can be beneficial, but high-intensity, unsupported care may take a toll. Build in support where possible.
Protect social stability: Living alone or losing a partner was linked to worse outcomes, reinforcing the role of connection in healthy aging.
The takeaway
Longevity isn't just about what you eat or how often you exercise. This research points to life stability (financial security, housing, relationships, and manageable caregiving) as a powerful factor in healthy aging.
If you're already optimizing the usual pillars, it may be worth looking at the structure of your life, too.
Wednesday, March 18, 2026
Summary of the best evidence for frailty management in patients with ischemic stroke during the rehabilitation period
'Management' NOT PROTOCOLS that prevent frailty; so completely fucking useless! Your mentors and senior researchers are hopelessly useless!
Summary of the best evidence for frailty management in patients with ischemic stroke during the rehabilitation period
Xiaokang Wang &Zhe ZhangCite this article https://doi.org/10.1080/00207454.2026.2643316 Citations
Background
To retrieve and summarize the best evidence for frailty management in patients with ischemic stroke during the rehabilitation period, providing reference for clinical practice.
Methods
The system searches for literature on stroke frailty management in domestic and foreign databases and guideline websites, with a search period from the establishment of the database to November 2024. Two researchers independently evaluated the quality of the literature and organized and summarized the evidence. Results
A total of 22 articles were included, 4 guidelines, 1 expert consensus, 7 systematic reviews, 1 evidence summary, 1 quasi-experimental study, and 8 randomized controlled trials. Finally, 31 pieces of evidence were summarized from six aspects: frailty assessment, team building, exercise intervention, nutritional support, psychosocial support, and health education.
Conclusions
The best evidence summary for frailty management in stroke patients is comprehensive, and medical staff should combine clinical application evidence to effectively improve patient frailty.
Tuesday, March 10, 2026
Infections Linked to Increased Frailty and Mortality Risk in Older Adults: Study
You have enough problems with frailty post stroke so make sure your competent? doctor prevents infections.
- frailty (30 posts to January 2018)
- infection
(19 posts to February 2012)
- 30% infection post stroke
(1 post to May 2019)
Infections Linked to Increased Frailty and Mortality Risk in Older Adults: Study
Sunday, December 28, 2025
Frailty Plus Depression Equals Greater Dementia Risk
How is your competent? doctor ensuring frailty and depression don't occur? Oh, NO PLAN AT ALL?
Post stroke depression(33% chance)
Frailty Plus Depression Equals Greater Dementia Risk
A combination of physical frailty and depression is associated with a substantially increased risk for subsequent dementia, exceeding the risk linked to either condition alone.
In a cohort study of nearly 221,000 participants, frailty was associated with roughly a 2.5-fold higher risk for dementia compared with healthy individuals, while depression alone was linked to a 60% increased risk.
Those with both frailty and depression faced the highest risk, with a more than threefold increased risk for dementia.
Overall, 17% of dementia risk was attributable to the combined effects of frailty and depression.
“These results underscore the complex relationship between frailty, depression, and cognitive function,” Yihong Ding, Zhejiang University School of Medicine, Hangzhou, China, and colleagues wrote.“Given that physical frailty and depression are modifiable, concurrent interventions targeting these conditions could significantly reduce dementia risk,” they added.
The findings were published online on December 16 in General Psychiatry.
Novel Research
Previous research has focused primarily on associations between dementia risk and either frailty or depression. The investigators noted that this study is the first to investigate the combined effect of both conditions on dementia risk, the investigators noted.
The investigators assessed data for 220,947 participants aged 60 years or older (mean age, 64.5 years; 53% women) from the English Longitudinal Study of Ageing, the UK Biobank, and the Health and Retirement Study.
Measures included modified versions of the Fried frailty phenotype, mental health questionnaires, and hospital admission records. The primary outcome was incident all-cause dementia, which occurred in 9088 participants over 2,832,696 person-years of follow-up.
Results showed that frailty and depression did not multiply each other’s effects on dementia risk, but together they increased risk more than would be expected from either condition alone.
However, individuals with physical frailty alone had a 155% higher risk for dementia compared with healthy individuals (pooled hazard ratio [HR], 2.55; 95% CI, 2.36-2.76), while depression alone was associated with a 59% increased risk (pooled HR, 1.59; 95% CI, 1.50-1.69).Those with both frailty and depression had an even higher pooled HR of 3.23 for risk for dementia (95% CI, 2.86-3.65).
The interaction between frailty and depression accounted for 17.1% of dementia risk (95% CI, 6.0%-28.3%).
“These two factors interact in an additive manner, further amplifying dementia risk,” the researchers wrote.
When both factors were added to traditional dementia risk models across all three cohorts, prediction accuracy improved significantly (all area under the curve P values < .05).
The investigators noted the findings underscore the need to integrate assessments of frailty and depression into clinical practice, potentially enabling earlier identification of high-risk individuals and the implementation of targeted interventions.
This study was funded by the National Key Research and Development Program of China. The investigators reported no relevant financial relationships.
Friday, December 5, 2025
Diabetes drugs may help older adults slow frailty, suggests study
Your competent? doctor has had years to come up with a protocol to prevent frailty post stroke.
Did that occur? NO? So, you don't have a functioning stroke doctor or hospital, do you? RUN AWAY!
So, your doctor isn't up to the task of new knowledge? I'd suggest forced retirement of the doctor if your hospital is any good at all!
Diabetes drugs may help older adults slow frailty, suggests study
Friday, October 31, 2025
Impact of Frailty on Rehabilitation Exercise Adherence in Patients with Ischemic Stroke
Your competent? doctor has had years to come up with a protocol to prevent frailty post stroke. And to get survivors recovered even if they were frail before.
Did that occur? NO? So, you don't have a functioning stroke doctor or hospital, do you? RUN AWAY!
Impact of Frailty on Rehabilitation Exercise Adherence in Patients with Ischemic Stroke
Qingwen LongQingwen Long1,2Li WuLi Wu1Yongli LiYongli Li2Yi WuYi Wu1,2,3*
1 Affiliated Hospital of North Sichuan Medical College, Nanchong, China
2 north sichuan medical college, Nanchong, China
3 Guang'an District People's Hospital of Guang'an City, Guang'an, China
Objectives To identify the threshold effect of frailty on rehabilitation exercise adherence in patients with ischemic stroke. Methods The study included 307 patients diagnosed with ischemic stroke who were given a questionnaire comprising a general information form, the Rehabilitation Adherence Assessment Scale, and the Frailty Assessment Scale. Univariate and multivariable linear regression were employed to determine factors influencing rehabilitation exercise adherence. Subsequently, restricted cubic splines were utilized to fit a smooth curve and detect potential threshold effects. Results The average score for the rehabilitation exercise adherence index was (54.83 ± 9.32), while the average frailty score was (4.59 ± 2.14). Through univariate analysis, it was found that gender, marital status, living arrangement, household registration type, number of medications, and level of independence are factors influencing rehabilitation exercise adherence. Restricted cubic spline analysis revealed a non-linear relationship between frailty and rehabilitation exercise adherence. The association between frailty score and rehabilitation exercise adherence was found to be insignificant when the score was ≤ 3.98. Conversely, exceeding this threshold revealed a significant decline in the adherence index, with each additional frailty point correlating with a 2.56-point decrease (P < 0.001). Conclusions Rehabilitation exercise adherence is moderate among patients with ischemic stroke, while the prevalence of frailty is notably high. A frailty score above 3.98 might serve as an early indicator of its impact on adherence. Accordingly, rehabilitation programs need to be adjusted to accommodate disease characteristics and sociodemographic factors. Keywords Frailty, rehabilitation exercise, adherence, ischemic stroke, threshold effect analysis
Thursday, September 25, 2025
Frailty and Dementia: A Causal Link?
Make damn sure your competent? doctor HAS EXACT PROTOCOLS TO PREVENT FRAILTY! Doesn't have them, your doctor is fuckingly incompetent! Fire them!Let's see how long your doctor and hospital have been incompetent in not having frailty prevention protocols!
frailty
(28 posts to January 2018)
So, 6+ years of TOTAL INCOMPETENCE OF THE BOARD OF DIRECTORS! How do they live with themselves?
Frailty and Dementia: A Causal Link?
Physical frailty is strongly associated with an increased dementia risk in older adults, and according to researchers, the link may be causal.
In an analysis of nearly half a million UK Biobank participants, researchers found that frail adults had almost a three-fold increased risk of developing dementia compared to their nonfrail peers, while those with prefrailty had a 50% increased dementia risk.
“We’ve known that frailty is associated with a higher risk of dementia, but our study provides evidence that frailty may be an actual cause of dementia,” study investigator Yacong Bo, PhD, School of Public Health, Zhengzhou University, China, said in a press release.
The study implicates genetic factors, immunometabolic functions, and alterations in brain structure in the link between frailty and dementia.
“Our study offered further insights into the mechanisms linking physical frailty with dementia,” the investigators write.
The findings were published online September 17 in Neurology.
Early Identification Imperative
In 2021, about 57 million people around the world were diagnosed with dementia, but that estimate is projected to rise to 153 million by 2050. Current dementia treatments have limited effectiveness, so early identification and a deeper understanding of dementia risk factors are imperative, the investigators note.
One such risk factor is frailty, a syndrome marked by reduced physiological reserve and greater vulnerability to stressors. Whether frailty contributes directly to dementia — and which biological or neurological mechanisms may be involved — remains unclear.
The new analysis included 489,573 participants without dementia at enrolment in the UK Biobank, a large population-based cohort study. The mean age of participants was 57.03 years, 54.37% were female, and 94.45% were White.
Participants completed questionnaires on health, sociodemographic, and lifestyle factors, provided biological samples, and underwent physical examinations.
Researchers assessed physical frailty using five components: weight loss, exhaustion, physical inactivity, slow walking speed, and low grip strength. Participants were classified as frail (≥ 3 components, 4.6%), prefrail (1-2 components, 43.9%), or nonfrail (0 components, 51.5%).
Investigators evaluated biological biomarkers, including peripheral blood cell counts, blood biochemical markers, and metabolomic markers. From the brain MRIs, they analyzed gray and white matter, as well as cortical and subcortical regions.
They also assessed genetic predisposition to dementia, classifying polygenic risk scores (PRS) as high (quintile 1) or intermediate (quintiles 2-4), and identifying individuals with one or two epsilon-4 alleles as APOE epsilon-4 carriers.
Investigators adjusted for age, ethnicity, employment, socioeconomic status, education level, smoking and drinking habits, BMI, and physical activity.
An Early Indicator?
Over a median follow-up of 13.6 years, 8900 dementia cases were reported. After adjustment, dementia risk was 50% higher in prefrail individuals (hazard ratio [HR], 1.50; 95% CI, 1.44-1.57) and nearly threefold higher in frail individuals (HR, 2.82; 95% CI, 2.61-3.04) compared with nonfrail peers.
Dementia risk rose with increasing frailty, with HRs of 1.37 (95% CI, 1.31-1.44), 1.91 (1.80-2.04), 2.78 (2.56-3.02), 3.06 (2.67-3.50), and 4.36 (3.23-5.89) for frailty scores of 1 through 5, respectively.
Each frailty component was independently associated with an increased risk of dementia. HRs were 1.36 (95% CI, 1.29-1.44) for weight loss; 1.49 (1.42-1.55) for low grip strength; 1.49 (1.42-1.55) for physical inactivity; 1.55 (1.46-1.64) for exhaustion; and 1.82 (1.71-1.93) for slow walking speed.
Subgroup analyses revealed a stronger relationship among participants younger than 65 vs those 65 years and older. This, said the researchers, suggests frailty may function as an early indicator or biomarker. Sensitivity analyses confirmed the robustness of the relationships.
Researchers categorized participants into six groups based on APOE‑epsilon-4 status and frailty. Compared with frail individuals with the lowest genetic risk (by PRS), frail individuals with the highest genetic risk had a markedly higher risk of dementia (HR, 3.87; 95% CI, 3.30-4.55).
Frail APOE-epsilon-4 carriers had the highest dementia risk (HR, 8.45; 95% CI 7.51-9.51) compared with those who were neither APOE-epsilon-4 carriers nor frail.
Researchers performed a bidirectional Mendelian randomization (MR) analysis to investigate a potential causal relationship between frailty and dementia. MR leverages genetic variants as proxies to evaluate the causal effect of a modifiable exposure on a health outcome — in this case, dementia.
The forward MR analysis aimed to evaluate the causal effect of physical frailty on dementia. Here, a one-point increment in frailty was associated with a 79% increased risk of dementia (odds ratio, 1.79; 95% CI 1.03-3.12; P = .039). Results of the reverse MR study suggested dementia is unlikely to increase physical frailty risk.
A Causal Role?
The investigators found several brain regions played a significant mediating role in the relationship between frailty and dementia. Among others, these included the right frontal pole, left inferior parietal, left precuneus, supra-marginal, left middle temporal, left para hippocampal, posterior cingulate, putamen, and right inferior parietal.
“This observation supports the notion that physical frailty and dementia may share a common neurobiological foundation,” the investigators wrote.
Researchers also assessed various immunometabolic markers, including C-reactive protein, glucose, apolipoprotein A, apolipoprotein B, glycated hemoglobin, high density lipoprotein cholesterol, low density lipoprotein cholesterol, and triglycerides. The results suggest the impact of frailty on dementia risk may be mediated through these immunometabolic-related pathways.
In addition to neuroanatomical and immunometabolic factors, other pathways may link frailty and dementia. The investigators note, for example, that frailty is associated with a higher risk of depression, which may be a prodromal symptom of dementia and — with an increased risk of stroke — a well-established contributor to cognitive impairment.
While the robustness of MR analyses and multiple sensitivity checks support a causal role for frailty, it remains possible that frailty reflects early pathophysiological changes. “[W]e can’t rule out the possibility that frailty is instead a marker of the early changes in the disease process,” Bo said in the release.
One limitation of the study is that four of the five frailty components were based on self-report, which could introduce reporting bias and potentially underestimate the effect of frailty. Another limitation is that frailty data were not collected during follow-up, preventing assessment of how changes in frailty might influence dementia risk.
In addition, identifying dementia through hospital and death records may have missed individuals with mild symptoms, limited access to healthcare, or those who died before receiving a dementia diagnosis. Furthermore, because the UK Biobank cohort is predominantly White, the generalizability of these results to other racial groups is limited.
Timely, Important Research
Asked to comment, Shaheen Lakhan, MD, PhD, a neurologist, and researcher based in Miami, told Medscape Medical News the study is timely and important.
“This study makes frailty the new vital sign for brain health. If frailty truly drives dementia through immune and brain pathways, then preventing dementia becomes synonymous with slowing biological aging itself,” he said.
He added the results present a “real opportunity” to embed frailty detection into routine care. “This would allow us to intervene years before cognitive decline even begins.”
The study was supported by the Chinese National Health Commission Key Laboratory of Birth Defects Prevention, Henan Key Laboratory of Population Defects Prevention, the Chinese International Postdoctoral Exchange Fellowship Program and the Henan Medical Science and Technology Research Program. The investigators report no relevant disclosures. Lakhan has no relevant conflicts of interest.
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