Almost all people with two copies of 'Chris Hemsworth' gene will go in to ... trends now

Almost all people with two copies of 'Chris Hemsworth' gene will go in to ... trends now
Almost all people with two copies of 'Chris Hemsworth' gene will go in to ... trends now

Almost all people with two copies of 'Chris Hemsworth' gene will go in to ... trends now

Scientists may be one step closer to a cure for Alzheimer’s after working out who is most likely to get the disease. 

Researchers have discovered almost all individuals with two copies of a particular gene, called APOE4, go on to develop signs of the memory-robbing condition.

Previously, the quirk — carried by Avengers star Chris Hemsworth — had been linked to a 10-fold heightened risk. 

The team from the Sant Pau Research Institute in Barcelona analysed clinical data from more than 10,000 people and more than 3,000 brain donors.

They found that more than 95 per cent of people aged 65 and above who had two copies of the APOE4 gene went on to show early signs of the disease.

Researchers have discovered almost all individuals with two copies of a particular gene, called APOE4, go on to develop signs of the memory-robbing condition. Previously, the quirk — carried by Avengers star Chris Hemsworth — had been linked to a 10-fold heightened risk

Researchers have discovered almost all individuals with two copies of a particular gene, called APOE4, go on to develop signs of the memory-robbing condition. Previously, the quirk — carried by Avengers star Chris Hemsworth — had been linked to a 10-fold heightened risk 

Alzheimer's disease is the most common cause of dementia. The disease can cause anxiety, confusion and short-term memory loss

Alzheimer's disease is the most common cause of dementia. The disease can cause anxiety, confusion and short-term memory loss

These people also developed the condition earlier than those with other variants of the gene, researchers said.

They believe this is the first study to show that having two copies of APOE4 almost guarantees the onset of the disease.

The team said their discovery is especially important as around 2 per cent of the population carries two copies of this gene.

And it could pinpoint the best people to include in clinical trials for treatment.

What is the APO dementia gene? 

A person receives a version of the APO gene, a protein scientifically named apolipoprotein E, from each parent when they are conceived. There are three types of the protein: e2, e3 and e4.

APO is one of more than 20,000 genes a person develops when they are in their mother's womb. Every person has two copies of each gene, inheriting one from each of their parents.

All versions of APO are responsible for regulating the way the body transports lipids and cholesterol throughout the body.

Around 75 per cent of people have the e2 or e3 varieties, while 20 per cent have one copy of e4 and between 3 and 5 per cent of people have two copies.

The e4 variant is linked to an increased risk of developing Alzheimer's, whereas e3 appears to have no effect and e2 may even offer protection against the disorder.

People born with one copy of the e4 variety suffer a doubled risk of developing Alzheimer's between the ages of 65 and 80.

Those with two copies have a 10 to 15-fold increased risk of developing the disease after the age of 65, scientists estimate.

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Dr Juan Fortea, director of the research area on neurological diseases, neuroscience and mental health at the Sant Pau Research Institute, said: 'These data represent a reconceptualisation of the disease or what it means to be homozygous for the APOE4 gene.

'This gene has been known for over 30 years and it was known to be associated with a higher risk of developing Alzheimer's disease.

'But now we know that virtually all individuals with this duplicated gene develop Alzheimer's biology.'

The APOE gene comes in three different variations — APOE2, APOE3 and APOE4.

Everyone carries two copies of APOE, one inherited from each parent. Previous studies

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