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Higher triglycerides levels linked to lower risk of dementia


Older people who have higher levels of triglycerides, a type of fat, may have a lower risk of dementia and a slower cognitive decline over time compared to people who have lower levels, according to new research.
While a link was found, it does not prove that higher levels of triglycerides prevent dementia, the study, published in Neurology, the medical journal of the American Academy of Neurology, said.
Triglycerides are fatty acids and are the most common type of fat in the blood. Triglycerides contribute up to 95% of dietary fats, which are the main energy source of the brain.
“Higher triglyceride levels may be reflective of better overall health and lifestyle behaviors that would protect against dementia,” said study author Zhen Zhou of Monash University in Melbourne, Australia.
“Our findings suggest that triglyceride levels may serve as a useful predictor for dementia risk and cognitive decline in older populations.”
Researchers used health care data to identify 18,294 people in one cohort with an average age of 75 who did not have a prior diagnosis of Alzheimer’s disease or dementia.
Participants were followed for an average of six years. During that time, 823 people developed dementia.
Researchers looked at participants’ measurements of total cholesterol, triglycerides, low-density lipoprotein cholesterol (LDL) and high-density lipoprotein cholesterol (HDL) each year of the study.
Then researchers divided participants into four groups based on fasting triglyceride levels. Of the total group, average triglycerides were 106 milligrams per decilitre (mg/dL).
For adults, a normal or healthy triglyceride level is below 150 mg/dL.
Lower risk
After adjusting for variables including education and cholesterol-lowering treatments, researchers found every doubling of triglyceride levels was associated with an 18% lower risk of developing dementia.
The lowest triglyceride group had levels of less than 62 mg/dL. The second group had levels of 63 to 106 mg/dL. Compared to the lowest group, the second group was 15% less likely to develop dementia.
The third group had levels of 107 to 186 mg/dL. Compared to the lowest group, they were 24% less likely to develop dementia.
The fourth group had levels of 187 mg/dL or higher. Compared to the lowest group, they were 36% less likely to develop dementia.
Of the 1,416 people in the lowest triglyceride group, 82 people, or 6%, developed dementia. Of the 7,449 people in the second group, 358 people, or 5%, developed dementia.
Of the 7,312 people in the third group, 310, or 4%, developed dementia. Of the 2,117 people in the fourth group, 73 people, or 3%, developed dementia.
The researchers also validated their results in another dataset comprised of 68,200 older people from the UK.
Among them, 2,778 people developed dementia over an average time of 12 years. They observed a consistent result which shows a 17% decreased risk of dementia with every doubling of triglycerides levels.
Researchers also found that higher triglycerides were also associated with slower decline in composite cognition, a combined result from tests of global function, psychomotor speed, language and executive function and memory over time.
“Future studies are needed to investigate whether specific components within triglycerides may promote better cognitive function, with the hope of developing new preventive strategies,” Zhou said.
A limitation of the study was researchers looked only at people 65 and older who had no cognitive issues initially, so the findings are not generalisable to other populations.
The study was supported by the National Institute on Aging, Royal Australian College of General Practitioners and HCF Research Foundation.
News
Early Alzheimer’s prediction platform secures €21 million investment


The project aims to identify people at risk of dementia before symptoms appear.
More than 7 million people are living with dementia in the EU. This number is projected to double, reaching 14 million by 2050.
There is currently no cure for Alzheimer’s disease. Although the search for potential treatments is showing promise, it is anticipated that these medications will be most effective in the early stages of the disease.
The recently launched AI screening platform, PREDICTOM aims to identify individuals at risk of developing dementia, even before symptoms manifest.
The cognitive and biomarker screening platform has this week announced it will be backed by €21 million in funding, with €8 million from the EU, €9 million from industry and €4 million from UKRI.
A consortium of 30 partners from academia, business, civil society and hospitals is steering the project. The Consortium includes partners from 15 countries across Europe, Asia and America and is led by Stavanger University Hospital.
Dag Aarsland, Professor of Old Age Psychiatry at King’s College London and research lead at Stavanger University Hospital, is the leading the project.
“Detecting early signs of dementia is key to slowing its progression. Unfortunately, a majority of those at risk are not identified in time. Our platform seeks to change this by enabling early discovery, allowing timely intervention and preventative treatment,” Aarsland said.
A crucial aspect of PREDICTOM is that much of the screening can be performed by the patients themselves in the comfort of their homes.
By initiating the process at home, the project aims to reduce strain on healthcare services and associated costs. Biomarkers, including saliva, stool, digital markers and blood via prick-tests, will be collected at participants’ homes or GP offices, streamlining a process traditionally carried out in hospitals or specialised clinics.
More than 4000 participants will partake in PREDICTOM’s trial project. The samples will be based on a pool of people from previous initiatives like PROTECT UK, PROTECT Norway and Radar-AD, as well as people from the catchment area of other participating centres in Germany, France, Switzerland, Belgium and Spain.
“If our project succeeds, there will be significant savings in both cost and time,” Aarsland said
After the home collection, samples will be sent to PREDICTOM, where their platform will process the participant data, integrating blood, cerebrospinal fluid, imaging, electrophysiological and digital biomarkers.
AI algorithms will generate risk assessments, early diagnoses and prognoses, laying the foundation for early intervention and treatment.
This project is part of the Innovative Health Initiative (IHI), a public-private partnership (PPP) between the European Union and the European life science industries.
“We are very pleased to have such a robust team with top notch expertise spanning diverse fields, including IT, AI, medicine, ageing research and professionals from both small and large businesses,” Aarsland added.
The project runs from 1st November 2023 to 31st October 2027.
News
New partnership to bring dementia-specific programmes to Washington State


The partnership will bring non-pharmacological interventions for dementia and alternatives to high-cost drugs to patients across Washington State.
A new partnership between brain health company, Together Senior Health and accountable care organisation, Rainier Health Network,
The partnership will introduce Together’s suite of dementia-specific programs, including in-home virtual interventions, to patients across Rainier Health Network in Washington state where the organisation oversees the healthcare of over 60,000 Medicare patients.
Alzheimer’s and related dementias affect more than 6.7 million Americans with 14 million projected cases by 2060. The associated healthcare costs for individuals with dementia are among the highest of any condition. Payers and providers face significant challenges in managing this expanding population.
According to a recent survey conducted by Sage Growth Partners, 77 per cent of health plans and value-based care organizations agree the need to address the growing cost of ADRD is urgent or very urgent; however, only 4 per cent have a fully-developed solution in place to support this population.
Approximately half of those surveyed also indicated a concern with the costs of Leqembi and other high-cost pharmaceuticals.
Together’s Moving Together programme offers a non-pharmacological intervention for dementia and a safe alternative to high-cost drugs that are not clinically appropriate for many dementia patients and have potential side effects.
The programme allows payers and risk-bearing healthcare organisations to more effectively manage patients. Together Senior Health says the programme results in improved engagement, reduced costs and improved health outcomes.
Recently, the company has been gaining industry traction. In addition to its partnership with Rainer Health Network, the firm is affiliated with the likes of VNS Health, VillageMD and the Alzheimer’s Association.
“Supporting our members with Alzheimer’s disease and related dementias is critical,” said Dr Francis Mercado chief medical officer and board chair at Rainier Health Network. “It’s a vulnerable population and Together Senior Health’s Moving Together™ solution is a proven, natural way to improve their lives and control costs.”
Together’s Moving Together™ programme is based on over ten years of clinical research in neuroscience with the University of California, San Francisco (UCSF) and the National Institutes of Health (NIH).
Results from Together’s randomised control trial show statistically significant improvements in quality of life for individuals with cognitive decline and in caregiver ability to manage stress. The data also shows a reduction in falls and proven annual cost savings of up to $4,300 per participant per year.
Caregivers in the programme have also benefited, reporting enhanced caregiving skills.
Together is in the process of commercialising RADAR, its proprietary dementia identification and stratification algorithm. The algorithm helps payors and risk-bearing healthcare organisations identify people at highest risk for Alzheimer’s disease, dementia and cognitive decline using claims data, electronic health record information and other relevant data.
“We are proud of the positive impact Together is making on the lives of those affected by dementia and are excited to partner with one of the nation’s premier ACOs to extend dementia-specific programs to its patients,” said Alissa Meade, CEO of Together Senior Health.
“Rainier Health Network, Virginia Mason Franciscan Health and Together share a deep commitment to providing holistic dementia solutions that enrich the lives of participants while empowering forward-thinking, risk-bearing organizations to engage and manage this rapidly growing patient population effectively.”
News
One in 25 carry genotype associated with shortened lifespan


The study used genomic data from 58,000 Icelanders and discovered the presence of a life-shortening genotype across 4 per cent of the population.
Scientists at deCODE Genetics, a subsidiary of Amgen, have published a study on actionable genotypes detected in the Icelandic population and their association with lifespan.
The researchers determined that 1 in 25 individuals carried an actionable genotype and have, on average, a shortened lifespan.
“The identification and disclosure of actionable genotypes to participants can guide clinical decision-making, which may result in improved patient outcomes,” said Kari Stefansson, author of the paper and CEO of deCODE Genetics. “This knowledge therefore has significant potential to mitigate disease burden for individuals and society as a whole.”
The study, published today in the New England Journal of Medicine, focuses on genotypes that increase the risk of a disease for which preventive or therapeutic measures have been established. These genotypes are termed actionable genotypes.
The scientists used a population-based data set, consisting of 58,000 whole-genome sequenced Icelanders, to assess the fraction of individuals carrying actionable genotypes.
Using a list of 73 actionable genes from the guidelines from the American College of Medical Genetics and Genomics (ACMG), the scientists found that 4 per cent of Icelanders carry an actionable genotype in one or more of these genes. The diseases caused by these genotypes include cardiovascular, cancer and metabolic diseases.
The study assessed the relationship between actionable genotypes and the lifespan of their carriers. The largest effect was observed among carriers of cancer-predisposing genotypes, which had three years shorter median survival than non-carriers.
A pathogenic variant in BRCA2, predisposing to breast, ovarian and pancreatic cancer, shortened lifespan by seven years and a variant in LDLR, which causes high levels of cholesterol and cardiovascular disease, shortened lifespan by six years.
“Our results suggest that the actionable genotypes identified in our study, which are all predicted to cause serious disease, may have a drastic effect on lifespan,” said Patrick Sulem author of the paper and scientist at deCODE Genetics.
The results showed that carriers of particular actionable genotypes were more likely to have died from the disease caused by these genotypes. Individuals with a pathogenic variant in BRCA2, have a seven-fold risk of dying from breast, ovarian or pancreatic cancer.
They are also 3.5 times more likely to develop prostate cancer and seven times more likely to die from prostate cancer than those who do not carry the variant.
The results of this study are among the factors that have motivated the government of Iceland to announce a nationwide effort in precision medicine.
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