New sensor detected to indicate Vitamin B12 deficiency!!

October 19, 2016 11:53
New sensor detected to indicate Vitamin B12 deficiency!!

Scientists have developed a new world-first optical sensor that may quickly detect vitamin B12 deficiency, a condition linked to an increased risk of dementia and Alzheimer's disease.

The device would enable the tracking of vitamin B12 levels in high-risk patients and early intervention - to top up vitamin B12 levels when low - and help overcome the limitations of current testing methods which are time-consuming and costly.

GeorgiosTsiminis, research fellow at the University of Adelaide in Australia said, "Vitamin B12 deficiency has been shown to be a potential modifiable risk factor for dementia and Alzheimer's disease and is associated with cognitive decline”.

Mr Tsiminis said, "Older adults are particularly at risk of B12 deficiency due to age-related reduction in absorbing vitamin B12 received through their diet”.

"Our sensor is an early first step towards a point-of-care solution for measuring and tracking B12 in healthy ageing adults. This would allow doctors to monitor B12 levels and intervene as soon as B12 deficiency was detected”.

The sensor is still at proof-of-concept stage but, with development, has wide-reaching potential applications. Mr Tsiminis said, "Currently our device could not aid in diagnosing vitamin B12 deficiency in a general practice setting”.

"However, this is the first time a rapid technique based on optical spectroscopy has been shown to be able to detect vitamin B12 in human blood serum. We believe this is a very promising first step towards achieving this goal," he said.

The optical sensor measurement of B12 in human blood takes less than a minute and requires minimum preparation. This is the first demonstration of vitamin B12 being measured in human blood serum without the need for a full laboratory test.

By Prakriti Neogi

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Vitamin  laboratory