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Heavy drinking may affect young male and female brains very differently

There are hundreds of alcohol-related deaths in Ireland every year.

SCIENTISTS HAVE FOUND that brain functions in young men and women are changed by long-term alcohol use, but that these changes are significantly different in men and women.

This indicates not only that young people might be at increased risk of long-term harm from alcohol use, but also that the risks are probably different in men and in women, with men possibly more at risk.

A Finnish research group worked with 11 young men and 16 young women who had a heavy 10-year alcohol use, and compared them with 12 young men and 13 young women who had little or no alcohol use. All were between 23 to 28 years old at the time the measurements were taken.

The researchers examined the responses of the brain to being stimulated by magnetic pulses – known as Transcranial Magnetic Stimulation (TMS), which activates brain neurons.

Previously, the researchers had found that heavy alcohol users showed a greater electrical response in the cortex of the brain than non-alcohol users, which indicates that there had been long-term changes to how the brain responds.

This time, they found that young men and young women responded differently, with males showing a greater increase in electrical activity in the brain in response to a TMS pulse.

As one researcher, Dr Outi Kaarre of the University of Eastern Finland said:

“We found more changes in brain electrical activity in male subjects than in females, which was a surprise, as we expected it would be the other way around.

This means that male brain electrical functioning is changed more than female brains by long-term alcohol use.

The electrical impulse measurements also allowed the researchers to show that male brains have greater electrical activity associated with the GABA (gamma-amino butyric acid) neurotransmission than do female brains.

Dr Kaarre: “Generally, our work showed that alcohol causes more pronounced changes in both electrical and chemical neurotransmission in men than women.

“There are two types of GABA receptors, A and B. Long-term alcohol use affects neurotransmission through both types in males, but only one type, GABA-A, is affected in females.

We’re still trying to figure out what this means, but GABA is a pretty fundamental neurotransmitter in the inhibition of many brain and central nervous systems functions. It’s involved in many neurological systems, and is important in anxiety and depression. Generally it seems to calm down brain activity.

The study could be an important influence in how alcohol use is treated; it also shows a longterm change in brain activity despite the participants in the study not having an alcohol addiction or other disorder.

Wim van den Brink, a Professor of Psychiatry and Addiction at the Academic Medical Centre, University of Amsterdam, said these were interesting findings:

“This may mean that a different group of women is getting involved in early heavy alcohol use than used to be the case; in other words, when heavy drinking occurs more frequently and tends to become the norm, women do not need to have some aberrant personal characteristic to become an early heavy user of alcohol.

“A limitation of the study is that it says nothing about possible pre-existing neurobiological differences between the groups, an explanation for the observed differences that is equally valid”.

This work was presented today at the ECNP Congress in Paris.

Read: Ryanair wants UK airports to restrict alcohol sales after a spike in boozy travellers

Read: ‘I’m seven years sober last week. That, for me, beats any Olympic medal’ – Kenneth Egan on his recovery

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    Mute Noah Wilson
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    Mar 26th 2016, 11:15 AM

    No one truly understands the heartbreak but the response of the community has been magnificent.
    That special bond between this mother and daughter should be supported in every way possible.

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    Mute Sinead
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    Mar 26th 2016, 11:58 AM

    It might help her if she decides to move away and make a new life with her baby, I can’t imagine how much it hurts to be in a place where they should be. Or help pay mortgage etc and not worry financially. No doubt she would give it back in a second to spend one more hour with them.

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    Mute Maggie
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    Mar 26th 2016, 3:28 PM

    Ah she’s hardly going move anyway she still has lots family around , say that is very important

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    Mute Yvonne Nolan
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    Mar 26th 2016, 11:20 AM

    It’s heartwarming to see something positive coming from such an awful tragedy…..while nothing will take away their pain and grief hopefully it will at least give them one thing less to worry about for the moment

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    Mute Shane Cal
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    Mar 26th 2016, 11:17 AM

    Money means nothing in a situation like this but fair play to all involved.

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    Mute Susan Carabine
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    Mar 26th 2016, 11:50 AM

    Of course not Shane but in the day’s and year’s ahead it will mean a lot. It would be nice for her to have no mortgage or rent to worry about, she’ll have enough to deal with. People want to help her and putting a few quid into an account for her is a way of doing it

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    Mute Mary Fbaccount
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    Mar 26th 2016, 12:27 PM

    It’s not about the money – it is a reflection on how many are/were willing to help you in your time of need. Collections were made by the local community for my own family tragedy and I often look back and cherish the memory that people were there to help. Fair play to all who donated. This story has affected people in all corners of the world- on the DM people from the UK and US were looking to donate also.

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    Mute Deborah Behan
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    Mar 26th 2016, 4:19 PM

    We cannot bring them back so this is just a way of sending support. Hard times ahead but hopefully this will help.

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    Mute Brian Capture
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    Mar 26th 2016, 5:01 PM

    Love your surname Mary.

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    Mute Mary Fbaccount
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    Mar 28th 2016, 10:56 PM

    Ta Brian, it’s almost as good as your profile pic ;)

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    Mute Richard F
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    Mar 26th 2016, 12:31 PM

    This is probably the worst tragedy I have ever heard of how is that women gonna cope with this when things settle down that’s the scary part

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    Mute Mark Gerard Lochlain
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    Mar 26th 2016, 1:26 PM

    I know it’s too late for this poor family. I can’t stop thinking about them. Slipways at piers everywhere now should be gated off like in that photo so nothing like this can happen again. Very very sad and upsetting.

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    Mute Emer Caffrey
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    Mar 26th 2016, 2:21 PM

    if ever a ‘go fund me’ was needed; this one is surely it

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    Mute Cheryl Mellett
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    Mar 26th 2016, 6:27 PM

    Glad to see people rallied around. The money won’t replace her family but it will cover their funerals and give her and her little girl some security for now. Such a terrible tragedy.

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    Mute Richard F
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    Mar 26th 2016, 12:33 PM

    Woman

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    Mute Tom Fitzgibbons
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    Mar 28th 2016, 3:44 PM

    The headline says it could happen to anybody yet we don’t hear of people driving off slipways every day.

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