Brain Aging Diagnosed by the Flow of Cerebrospinal Fluid

by Shravanthi Vikram on February 21, 2018 at 4:18 PM

The flow of the cerebrospinal fluid that is present between the scalp and the skull helps in the diagnoses of neurodegenerative and age-related diseases. This is a non-invasive method, which is also used for the diagnoses for cardiovascular disease, says a study by a research team at Lancaster University (UK) and Medical University of Gdansk (Poland).

A device for non-invasive recordings of this translucent fluid has been developed by researchers at the Technical University of Gdansk (Poland), and recordings on healthy subjects were made at the Medical University of Gdansk (Poland) and the University of Regina (Canada).

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‘The flow of cerebrospinal fluid helps in the diagnoses of various diseases like brain aging, neurodegenerative and cardiovascular disease.’

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Using methods developed by physicists at Lancaster it has been shown that the circulation throughout the brain of this fluid is highly fluctuating, and that these fluctuations are slow but interconnected by the rhythms of breathing and the heart rate.

Researchers found that some of these oscillations are linked with blood pressure, but are generally slower, occurring at lower frequencies, which have been shown in previous studies to be related to oscillations in vascular motion and blood oxygenation. Preliminary results showed evidence of a decline in the coherence between these oscillations in participants over the age of 25, indicating that brain ageing may begin earlier than expected.

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Professor Aneta Stefanovska from Lancaster University, who has been studying the physics of biological oscillations for over 20 years, said: "Combining the technique to noninvasively record the fluctuation corresponding to cerebrospinal fluid and our sophisticated methods to analyse oscillations which are not clock-like but rather vary in time around their natural values, we have come to an interesting and non-invasive method that can be used to study ageing and changes due to various neurodegenerative .

Source: Eurekalert

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