Some good dementia news for a change

I'm getting to the age where dementia protection news grabs my attention.  From The Guardian:

Researchers have raised hopes for delaying dementia after finding that a recently approved shingles vaccine was linked to a substantial reduction in diagnoses of the condition in the six years after receiving the shot.

The discovery, based on US medical records, suggests that beyond the health benefits of preventing shingles, a painful and sometimes serious condition in elderly people, the vaccine may also delay the onset of dementia, the UK’s leading cause of death.

Dr Maxime Taquet at the University of Oxford, the first author on the study, said the results supported the idea that shingles vaccination may prevent dementia. “If validated in clinical trials, these findings could have significant implications for older adults, health services, and public health.”

Shingles is caused by the herpes zoster virus and can flare up in people who have previously had chickenpox. When a shingles vaccine, Zostavax, was first rolled out in 2006, a number of studies found hints that the risk of dementia seemed to be lower in those who got the shots.

The development of a new and more effective shingles vaccine, Shingrix, led to a rapid switch in the US in October 2017, meaning those who were vaccinated before that date received Zostavax, while those vaccinated after tended to have Shingrix.

The Oxford team studied the health records of more than 200,000 US citizens vaccinated for shingles, about half of whom received the new vaccine. Over the next six years, the risk of dementia was 17% lower in those who received Shingrix compared with Zostavax.

For those who went on to develop dementia, that amounts to an extra 164 days, or nearly six months, lived without the condition. The effect was stronger in women, at 22%, than in men at 13%.

Many years ago, I got a very mild case of shingles on my back.   So I was always planning on the getting the vaccine anyway.