Research provides new dementia insights

A newly recognised form of dementia called LATE (Limbic‑predominant Age‑related TDP‑43 Encephalopathy) has shed light on the complexity of cognitive decline in later life.

Researchers estimate that LATE affects roughly a third of people over 85 and about 10% of those over 65. Its symptoms closely resemble Alzheimer’s disease – such as memory loss and difficulty finding words – but it tends to progress more slowly when it occurs alone. 

When LATE coexists with Alzheimer’s, the decline becomes more rapid and severe. 

Diagnosing dementia in its late stages is challenging because the brain often hosts multiple pathologies. 

Studies suggest that around 20% of people thought to have Alzheimer’s have LATE instead. Worse still, about half of those with severe Alzheimer’s also show signs of LATE, and this combination brings not only accelerated cognitive decline but troubling symptoms such as psychosis, incontinence, and agitation. 

In the late stage of dementia – whether Alzheimer’s, LATE, or a mix – care becomes the primary focus. Individuals may lose the ability to walk, eat, communicate, or maintain personal hygiene independently. The risk of complications such as pneumonia, pressure sores, and malnutrition rises sharply. 

Care priorities shift toward comfort, dignity, and preserving quality of life. Support often includes physical therapy to prevent contractures and pressure sores, nutritional planning to manage swallowing difficulties, and vigilant monitoring to avoid infections.

Disclaimer: This article is for information purposes only and should not be considered medical advice. Consult a healthcare professional about any health concerns or before making any changes to your medication, diet, or exercise routine.