Blood test could spot Alzheimer’s


A blood test that could spot early signs of Alzheimer’s is being perfected by scientists.

Sufferers of the neurodegenerative disease, which causes progressive loss of memory, have higher levels of certain types of amino acids called peptides in their blood, according to research.

The particular group of peptides, called beta amyloid (A), are found naturally in the body, and a build-up in the brain over a period of years causes memory complaints and other symptoms associated with the disease.

And now scientists in Spain believe their test to measure very small amounts of beta amyloid (A) brings them closer to a “reliable, minimally invasive biomarker for Alzheimer’s disease“.

Professor Manuel Sarasa, the chief scientific officer and founder of Araclon Biotech, and his team have been perfecting blood tests “ABtest40” and “ABtest42” to measure tiny amounts of the peptides.

He said: “The study has shown that our tests for A in blood find a high level of association between the peptide levels and the disease when comparing healthy people and people with mild cognitive impairment.”

“By measuring three different levels in blood, free in plasma, bound to plasma components and bound to blood cells, for two of the most significant peptides, A40 and A42, then comparing the ratios of those levels to established diagnoses methods, we have been able to consistently show a relationship between A levels and the disease.”

“This means that we, and by ‘we’ I mean Alzheimer’s’ researchers in general, are that much closer to having a reliable, minimally invasive biomarker for Alzheimer’s disease.”

He added: “The importance of this is that studies could recruit earlier and at much less expense.

“Interventional therapies can be tested in earlier stages of the disease and once an effective therapy is found, this type of test will be well suited to population screening in the public health sector.”

The results of the research are being published in the Journal of Alzheimer’s Disease in July.

via Blood test could spot Alzheimer’s.

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About Old Boy

Love the past and the future but live in the present

Posted on June 10, 2013, in Health and tagged , , , , , , , . Bookmark the permalink. Leave a comment.

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