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Experts now believe that the number of people with Alzheimer's disease is twice as high as currently estimated.
In the United Kingdom, about 850,000 people have this debilitating disease, but most of them are diagnosed only after having some symptoms.
Getty – Contributor
Scientists at the Mayo Clinic in Minnesota, however, believe that many more people are likely living with this disease.
They use brain imaging to give a precise answer as to the number of people affected.
Tests conducted on 2,500 people showed that twice as many people had protein plaques and entanglements in the brain, markers of Alzheimer's disease, even though they did not suffer from dementia.
Dr. Jack Clifford, a professor at the Alexander Family Clinic Alexander and researcher in the field of Alzheimer's disease, told The Telegraph: "The prevalence of Alzheimer's disease is entirely based on a clinical evaluation.
"It's just based on the question" do you have dementia? "
Twice the numbers actually have the disease
But, he warned, the presence of these embarrbading biomarkers that clbadically define Alzheimer's disease tends to be about twice as high as the numbers diagnosed in clinics.
"Alzheimer's disease, defined in a traditional way, underestimates people with the pathology but not showing symptoms.
"Many more people suffer from the disease but do not show symptoms, just like many more people with hypertension than a stroke, or many more people with diabetes than people who have have become blind. "
A late diagnosis means that no treatment has been found
Failure to diagnose the disease early enough – before the onset of symptoms – is one of the reasons why all clinical trials have failed so far and for which it does not occur. there is still no cure.
Dr. Clifford told the newspaper that he thought the drugs were working but that they were being administered too late.
Symptoms of Azheimer Disease
Although the symptoms are common, every person diagnosed with Alzheimer's disease is unique and likely to have the disease differently.
But, for the most part, the first sign is a memory problem.
As the disease progresses, a person can:
- lose common objects such as keys and glbades around the house
- hardly find the word they are looking for in the conversation
- forget conversations or recent events
- get lost in a familiar place or during a familiar trip
- forget important anniversaries, birthdays or appointments
Although memory problems are the most common, there are other signs indicating that a person may be struggling with dementia.
They understand:
- speech problems – a person may have difficulty following a conversation or often find themselves repeating themselves
- problems of distance, walking on stairs or parking the car
- difficulties in making decisions and solving problems
- lose track of the day or date
Once you have a memory loss, the brain cells have already been destroyed – and it's irreversible.
To be effective, they must be administered before the symptoms appear.
Another problem is that not everyone who participates in Alzheimer's trials is suffering from Alzheimer's disease.
Last month, a new type of dementia was named.
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Professor Clifford went on to say that up to 30% of people who are told in the clinics that they suffer from Alzheimer's probably do not have one.
The hope is that a blood test will be available soon to detect Alzheimer's disease long before the onset of any symptoms, which will make it more manageable.
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