Category: News

Older man with Alzheimer's

Lipid Metabolism Is Causal in Some Alzheimer’s Cases

In Aging Cell, researchers have outlined the relationship between Alzheimer’s, increased pain sensitivity, and the enzyme LPCAT2. Pain is among the earliest signs The key characteristics of Alzheimer’s disease, such

DNA and cells

Partial Reprogramming Rejuvenates Aged Cells and Tissues

In a recent study, researchers investigated aging- and disease-associated changes in gene expression related to epithelial-mesenchymal transition. Inducing the Yamanaka factors in mice allowed them to rejuvenate cells and tissues

High-fat diet

A Short-Term High-Fat Diet Harms Memory in Mice

Scientists have demonstrated that even two days on a Western-like high-fat diet reduce hippocampal glucose availability, which activates a subset of inhibitory neurons and causes memory problems in mice [1].

Macrophage

How Macrophages Manage Obesity and Change With Age

In Nature Aging, researchers have identified and categorized several macrophage subtypes, including a subtype that appears with aging and another that manages nerve function. Not all macrophages follow the same

Microplastics

Microplastics Cause Cognitive Deficits in APOE4 Mice

Scientists have demonstrated that short-term exposure to microplastics causes Alzheimer’s-like effects in mice expressing human APOE4 versus APOE3. These effects were sex-dependent, mirroring the disease in humans [1]. Microplastics and

Brain effects

Study Boosts Brain Mitochondria, Rescues Memory in Mice

Scientists have found a way to directly stimulate the assembly of Complex I in mitochondria, rescuing memory deficits in mouse models of Alzheimer’s and frontotemporal dementia [1]. Mitochondrial signal transducers

Protein aggregate

A Mechanism Behind Protein Aggregation Discovered

Scientists have found a pathway that regulates protein aggregation, a cause of several age-related neurodegenerative diseases. United by abnormal protein aggregation Most neurodegenerative diseases are age-related, and many of them

Cancer cells

Cancer Cells Transfer Mitochondria to Fibroblasts

Scientists have discovered that cancer cells recruit fibroblasts to support tumor growth by transferring mitochondria into them. Blocking this process might be a new way to fight the deadly disease

Heart analysis

A Non-Viral Gene Therapy Restores Mouse Hearts

A recent study investigated the roles of brown adipose tissue and a lipid-controlling hormone, 12,13-diHOME, in cardiac health. The researchers examined the molecular mechanisms behind 12,13-diHOME’s effects on the hearts

Robot analysis

AI Model Accurately Predicts Multiple Disease Risks

European scientists have created a GPT-based model that can predict the risk of more than a thousand diseases on par with single-disease tools and biomarker-based models [1]. Tell me the future! For millennia, people have wanted to know what health events await them in the future.

Older man with Alzheimer's

Lipid Metabolism Is Causal in Some Alzheimer’s Cases

In Aging Cell, researchers have outlined the relationship between Alzheimer’s, increased pain sensitivity, and the enzyme LPCAT2. Pain is among the earliest signs The key characteristics of Alzheimer’s disease, such as cognitive decline and brain deterioration, are very well-known [1]. However, other symptoms, such as pain

lifespan.io Editorial

Looking Back at Summer, Looking Forward to Growth

For those of us in the Northern Hemisphere, autumn is underway. The fall is a time when the leaves that are green turn to brown, so let us see what the Lifespan team has been working on to help our field keep our own metaphorical leaves

DNA and cells

Partial Reprogramming Rejuvenates Aged Cells and Tissues

In a recent study, researchers investigated aging- and disease-associated changes in gene expression related to epithelial-mesenchymal transition. Inducing the Yamanaka factors in mice allowed them to rejuvenate cells and tissues and reverse some of these aging-associated changes [1]. Rejuvenating cellular identity Aging-related epigenetic changes result in

High-fat diet

A Short-Term High-Fat Diet Harms Memory in Mice

Scientists have demonstrated that even two days on a Western-like high-fat diet reduce hippocampal glucose availability, which activates a subset of inhibitory neurons and causes memory problems in mice [1]. Is it OK to eat junk occasionally? Metabolic disease and obesity are known to harm cognitive

Macrophage

How Macrophages Manage Obesity and Change With Age

In Nature Aging, researchers have identified and categorized several macrophage subtypes, including a subtype that appears with aging and another that manages nerve function. Not all macrophages follow the same rules Macrophages declining with age is a well-known problem, and many proposed solutions involve changing their

Microplastics

Microplastics Cause Cognitive Deficits in APOE4 Mice

Scientists have demonstrated that short-term exposure to microplastics causes Alzheimer’s-like effects in mice expressing human APOE4 versus APOE3. These effects were sex-dependent, mirroring the disease in humans [1]. Microplastics and the brain Exposure to tiny particles that plastic products shed (microplastics) has been linked to increased

Old timepiece

Epigenetic Clocks Do Not Perfectly Capture Metabolic Health

In Aging Cell, researchers have published their surprising findings that epigenetic clocks are not significantly related to most measurements of metabolic health after weight loss interventions. The utility of clocks These researchers begin by discussing epigenetic clocks and how much the measured alterations in gene expression

Glucosamine

Regular Glucosamine Use Linked to Fewer Chronic Diseases

An analysis of UK Biobank data showed an association between regular glucosamine use and significantly lower risks of seven non-communicable chronic diseases [1]. A common supplement Glucosamine, a sugar molecule with an amine group (amino sugar), is a supplement used by almost 20% of middle-aged adults

Microglia

Microglial Aging Is Determined by Their Environment

A new preprint study from Calico has found that the local brain environment is the primary driver of microglial aging. After being transplanted into old brains, young cells adopted aged characteristics, but their susceptibility to these signals could be turned off [1]. Microglia grow old and

Brain effects

Study Boosts Brain Mitochondria, Rescues Memory in Mice

Scientists have found a way to directly stimulate the assembly of Complex I in mitochondria, rescuing memory deficits in mouse models of Alzheimer’s and frontotemporal dementia [1]. Mitochondrial signal transducers Many neurodegenerative diseases, such as Alzheimer’s disease, are associated with mitochondrial dysfunction [2], which might lead

Protein aggregate

A Mechanism Behind Protein Aggregation Discovered

Scientists have found a pathway that regulates protein aggregation, a cause of several age-related neurodegenerative diseases. United by abnormal protein aggregation Most neurodegenerative diseases are age-related, and many of them are similar in other ways. For instance, amyotrophic lateral sclerosis (ALS), Huntington’s disease, and Alzheimer’s disease

Calendar date

Some Bioethicists Promote Lifespan Limitation

A paper published in Bioethics makes a startling case for people to die at 100 years old rather than live as long as they might choose. Deathism is relatively rare People who wholeheartedly believe that human lifespans should be restricted to a pre-defined span are not

Cancer cells

Cancer Cells Transfer Mitochondria to Fibroblasts

Scientists have discovered that cancer cells recruit fibroblasts to support tumor growth by transferring mitochondria into them. Blocking this process might be a new way to fight the deadly disease [1]. It goes both ways Cancer doesn’t act alone. Its success often hinges on recruiting neighboring

Heart analysis

A Non-Viral Gene Therapy Restores Mouse Hearts

A recent study investigated the roles of brown adipose tissue and a lipid-controlling hormone, 12,13-diHOME, in cardiac health. The researchers examined the molecular mechanisms behind 12,13-diHOME’s effects on the hearts of aged mice [1]. The aging heart Aging leads to many cardiovascular system-related changes, which are