Anaemia may raise dementia risk: study
Washington: Anaemia, or low levels of red blood cells, may increase the risk of dementia, a new study has found.
US researchers tested 2,552 older adults between the ages of 70-79 for anaemia. The participants also underwent memory and thinking tests over 11 years.
Of those, 393 had anaemia at the start of the study. At the end of the study, 445, or about 18 per cent of participants, developed dementia.
The research found that people who had anaemia at the start of the study had a nearly 41 per cent higher risk of developing dementia than those who were not anaemic.
The link remained after considering other factors, such as age, race, sex and education.
Of the 393 people with anaemia, 89 people, or 23 per cent, developed dementia, compared to 366 of the 2,159 people who did not have anaemia, or 17 per cent.
"Anaemia is common in the elderly and occurs in up to 23 per cent of adults ages 65 and older," said study author Kristine Yaffe, with the University of California - San Francisco and a member of the American Academy of Neurology.
"The condition has also been linked in studies to an increased risk of early death," Yaffe said.
"There are several explanations for why anaemia may be linked to dementia. For example, anaemia may be a marker for poor health in general, or low oxygen levels resulting from anaemia may play a role in the connection.
"Reductions in oxygen to the brain have been shown to reduce memory and thinking abilities and may contribute to damage to neurons," said Yaffe.
The study was published in the journal of the American Academy of Neurology.
More from India
More from World
More from Sports
More from Entertaiment
- Amitabh Bachchan's Twitter account hacked, 'sex sites' planted as following
- Lashkar-e-Toiba plotting 26/11-style attack in India with the help of Pak Navy, ISI?
- Radhe Maa approached to be a part of Bigg Boss 9?
- What was Indrani Mukherjea's original plan to murder Sheena Bora?
- Pakistan can inflict 'heavy losses' in war with India: Khawaja Muhammad Asif
- Indrani's former brother-in-law claims Sheena was Siddharth Das' daughter
- Sheena Bora murder case: 'Indrani Mukerjea's father thrashed her with belt'
- Leaked! Tentative list of 'Bigg Boss 9' revealed and guess who's hosting?
- Amitabh Bachchan's Twitter account hacked, sex sites planted as 'following'
- PM Modi releases digital version of Ramcharitmanas musical