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It's in your blood: Links found between blood type and risk of cognitive decline

RATE THIS! +41
Posted in Science on 9th Jun, 2015 12:15 AM by AlexMuller

The research, carried out in collaboration with the IRCCS San Camillo Hospital Foundation in Venice, shows that people with an ‘O’ blood type have more grey matter in their brain, which helps to protect against diseases such as Alzheimer’s, than those with ‘A’, ‘B’ or ‘AB’ blood types.

 
Research fellow Matteo De Marco and Professor Annalena Venneri, from the University’s Department of Neuroscience, made the discovery after analysing the results of 189 Magnetic Resonance Imaging (MRI) scans from healthy volunteers. The researchers calculated the volumes of grey matter within the brain and explored the differences between different blood types.
 
The results, published in The Brain Research Bulletin, show that individuals with an ‘O’ blood type have more grey matter in the posterior proportion of the cerebellum. In comparison, those with ‘A’, ‘B’ or ‘AB’ blood types had smaller grey matter volumes in temporal and limbic regions of the brain, including the left hippocampus, which is one of the earliest part of the brain damaged by Alzheimer’s disease.
 
These findings indicate that smaller volumes of grey matter are associated with non-‘O’ blood types. As we age a reduction of grey matter volumes is normally seen in the brain, but later in life this grey matter difference between blood types will intensify as a consequence of ageing.
 
“The findings seem to indicate that people who have an ‘O’ blood type are more protected against the diseases in which volumetric reduction is seen in temporal and mediotemporal regions of the brain like with Alzheimer’s disease for instance,” said Matteo DeMarco.
 
“However additional tests and further research are required as other biological mechanisms might be involved.”

Tags: bloodblood typebraindementiahealthmedicineresearchAlzheimer’sbiology

Read original article » Back to category

Comments

Author: Guest
Posted: 2015-06-09
0
An interesting finding and correlation - however this is quite preliminary and the way how blood group can be connected to brain volume unclear Reply
Author: Guest
Posted: 2015-06-09
-1
An interesting finding and correlation - however this is quite preliminary and the way how blood group can be connected to brain volume unclear Reply


 

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