Showing posts with label Autism and Asperger's. Show all posts
Showing posts with label Autism and Asperger's. Show all posts

Friday 19 December 2014

Autism link to air pollution raised

Autism link to air pollution raised

Woman with face mask

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A link between autism and air pollution exposure during pregnancy has been suggested by scientists.
The Harvard School of Public Health team said high levels of pollution had been linked to a doubling of autism in their study of 1,767 children.
They said tiny particulate matter, which can pass from the lungs to the bloodstream, may be to blame.
Experts said pregnant women should minimise their exposure, although the link had still to be proven.
Air pollution is definitely damaging. The World Health Organization estimates it causes 3.7 million deaths each year.
The study, published in Environmental Health Perspectives, investigated any possible link with autism.
Pollutants
It analysed 245 children with autism and 1,522 without.
By looking at estimated pollution exposure during pregnancy, based on the mother's home address, the scientists concluded high levels of pollution were more common in children with autism.
The strongest link was with fine particulate matter - invisible specks of mineral dust, carbon and other chemicals - that enter the bloodstream and cause damage throughout the body.
ExhaustNitrogen dioxide is a by-product of diesel engines
Yet, the research is unable to conclusively say that pollution causes autism as there could be other factors that were not accounted for in the study.
Consistent pattern
There is a large inherited component to autism, but lead researcher Dr Marc Weisskopf said there was mounting evidence that air pollution may play a role too.
He said: "The specificity of our findings for the pregnancy period, and third trimester in particular, rules out many other possible explanations for these findings.
"The evidence base for a role for maternal exposure to air pollution increasing the risk of autism spectrum disorders is becoming quite strong.
"This not only gives us important insight as we continue to pursue the origins of autism spectrum disorders, but as a modifiable exposure, opens the door to thinking about possible preventative measures."
Prof Frank Kelly, the director of the environmental research group at King's College London, told the BBC: "I think if it was this study by itself I wouldn't take much notice, but it's now the fifth that has come to the same conclusion.
"It is biologically plausible, the placenta is there to ensure the foetus has optimal supply of nutrients, but if chemicals are entering the mother's body then the foetus will have access to those too.
"Women should be made aware of the potential links so they don't get excessive exposure."

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Monday 3 November 2014

genetic risks for autism ?

Study points to new genetic risks for autism

DNA sequenceThe study linked 33 genes to autism.

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A massive international study has started to unpick the "fine details" of why some people develop autism, researchers have said.
They looked at thousands of DNA samples from children with autism and their parents.
The results, in the journal Nature, linked 33 genes to the condition with many involved in brain development.
The National Autistic Society said we were still "a long way" from knowing the cause of autism.
The study suggested a number of different risk factors for the condition, according to the lead author of the paper Prof Joseph Buxbaum, from Icahn School of Medicine at Mount Sinai New York.
"The smoking gun is genetics - but there are quite a lot of different bullets in the gun," said Prof Buxbaum.
DNA analysis
Autism is a life-long disorder that affects people's ability to socialise, and those on the autism spectrum can find it difficult to interact with other people.
The researchers assessed 15,480 DNA samples to determine the impact of mutations to the DNA that are passed from parent to child as well as those that spring up spontaneously.
The study expanded the number of genes linked to autism up to 33.
Seven genes were completely new while 11 had not been classed as true risk genes due to lack of data. Fifteen of the genes were already known to be risky.
It also indicated that small, rare genetic mutations in 107 genes can contribute to the risk of autism.
More than 5% of the autistic people in the study had these non-inherited loss-of-function gene mutations.
'Finer detail'
The study should help to improve understanding of some of the causes of autism, said Prof David Skuse, head of the social communication disorders team at Great Ormond Street Hospital in London, and a contributor to the report.
"Up until now we've really not been able to understand the mechanisms that lead to autism," he said. "This [study] is getting down to much finer detail."
Prof Skuse added that the study could start to help families understand autism.
The National Autistic Society (NAS) said there were many gaps in autism knowledge.
Carol Povey, director of the NAS Centre for Autism, said: "Autism is a highly complex story of genes not only interacting with other genes, but with non-genetic factors too.
"Research like this helps us to understand the genetics involved in certain forms of autism and opens up the possibility of whole families gaining a better understanding of a condition they may share," she said.
"However, we are still a long way from knowing what causes autism. What people with the condition, their families and carers need most of all, is access now to the right kind of support to be able to lead full lives," she added.

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Monday 17 February 2014

Asian people do have Asperger's Syndrome

How Asperger's reignited a passion for art

Singh Tattal's drawing of Sikh Soldiers Raj Singh Tattal's drawing of Sikh Soldiers
At the age of 38, artist Raj Singh Tattal was unemployed and depressed. Then he received a diagnosis of Asperger's Syndrome and everything changed.
Singh Tattal - also known as the "Pen-Tacular-Artist" now finally understands his obsessive tendency to draw pictures for hours on end. It is a common symptom of the autism spectrum disorder.
He has learned to let the condition drive his creativity, and this year he has four exhibitions lined up in his hometown, London.
In an interview with Ouch, Singh Tattal talks about his obsessions, support networks and being part of the Sikh community.

Start Quote

Raj Singh Tattal
I'm very obsessive. Where other people might take a month, each of my drawings takes four days”
How does Asperger's Syndrome affect you?
I'm very obsessive. Where other people might take a month, each of my drawings takes four days. I'm very reclusive as well - I probably spend 95% of the time by myself.
I don't really like change. I haven't been out of London for 12 years, I have multiple pairs of the same trainers and I've eaten baked beans every day for 20 years.
Some of this stuff sounds quite trivial, but over time it starts annoying people around you.
When I'm at home I don't sit with my family in the living room and have only started eating downstairs to try and make an effort. People used to think I was depressed because I was in my room but actually I was depressed when I had to leave it.
I started drinking over the years to try and fit in with people and have had friends in the past, but at the moment I have zero friends. I don't drink, I just draw - and I am the happiest I've ever been.
How has your life changed since the diagnosis?
Once I got diagnosed, I decided to change my lifestyle.
Rather than use my obsessive nature on silly things like games or films, I decided to focus on drawing.
Drawing used to be a passion, but you hadn't drawn for 11 years until your diagnosis. Why?
I have such an obsessive nature that when I draw, I don't just do it now and then, I put in ridiculous hours.
That's not very good for looking for work or trying to work, so I had to stop.
When I started again, I decided to go full force. I've been practising drawing for 14 months in my room.
I knew the standard I wanted to get to and now that I'm there, I'm happy to show my work to people.
What are your drawings like?
They are all black and white, graphite and charcoal drawings. I don't do one particular subject. I've done a lot of comic-based drawings and I'm doing some artwork on emotions, people in distress. It's not because I'm a morbid person but because I've gone through a really dark space. I relate to the sad ones.
Singh Tattal's drawing of an astronaut
What's it like being a Sikh on the spectrum?
I've been going to my support group for a year and I've only ever met one other Asian person. That's not because
It's because Asian people tend to cover it up. It's not something they really talk about. If I was from a white English family, people would have picked up my symptoms very young because I was a typical Asperger's kid.
I'm now slowly telling my relatives - who I don't even know because I'm so reclusive. I've started talking to them over Facebook because I want to make an effort now.
What do you gain by going to a support group?
I've always hated myself, because I'm a pretty intelligent guy - I managed to get myself a degree - but after so many problems, I started to think that I was a failure. People make you feel like you're a bad person because you can't do certain things.
Going (to the support group), you see people who are similar to you and you realise that they're really good people. It makes you look at yourself in a different way.
I would recommend anybody who's on the spectrum - or even thinks they are - just to turn up. Even if you are depressed, it is nice and comforting to speak to other people who can give you advice and help you out.
Why did you give a present to your local Sikh temple?
When you start a new career, you normally give a gift. The present is a drawing of the Sikh's 10th Guru, Guru Gobind Singh Ji. He has the heart of a saint and the body of a warrior and I've always aspired to be like that.
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Tuesday 10 December 2013

Susan Boyle reveals Asperger's Syndrome diagnosis

Susan Boyle reveals Asperger's Syndrome diagnosis

Susan BoyleSusan Boyle said she could now "better understand" herself after the diagnosis

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Scottish singer Susan Boyle has revealed she has been diagnosed with Asperger's Syndrome.
The star, who shot to fame after appearing on Britain's Got Talent in 2009, had spent years believing she suffered slight brain damage at birth.
In an interview with The Observer newspaper she told of her relief at finally getting a "clearer understanding" of her condition.
But she vowed: "It will not make any difference to my life."
Asperger's is a form of autism which typically means people with the condition struggle with their emotions and have difficulty in social situations, often unable to pick up on non-verbal cues.
'Greater understanding'
Boyle, 52, revealed she was misdiagnosed after complications at birth.
She said: "It was the wrong diagnosis when I was a kid.
"I was told I had brain damage. I always knew it was an unfair label. Now I have a clearer understanding of what's wrong and I feel relieved and a bit more relaxed about myself."
The singer has gone on to become one of the best-selling British female artists and recently had a cameo role in the festive film The Christmas Candle.
Last year a musical based on her life toured cities in the UK and Republic of Ireland and she has also said a film about her rise to fame is being planned.
Boyle said of her recently diagnosed condition: "It will not make any difference to my life. It's just a condition that I have to live with and work through.
"I think people will treat me better because they will have a much greater understanding of who I am and why I do the things I do."

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Tuesday 3 December 2013

male and female brains different


Boy in autism studyMost autism research involves boys and men

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Autism affects male and female brains differently, a study has suggested.
UK experts studied brain scans of 120 men and women, with half of those studied having autism.
The differences found in the research, published in journal Brain, show more work is needed to understand how autism affects girls, the scientists say.
Experts said girls with the condition could be more stigmatised than boys - and it could be harder for them to be diagnosed at all.
Autism affects 1% of the population and is more prevalent in boys, so most research has focused on them.
In this study, scientists from the Autism Research Centre at the University of Cambridge used magnetic resonance imaging (MRI) to examine how autism affects the brain of males and females.
Male and female brains differ anyway - tissue volume is greater in males.
'Look-alikes'
The study looked at the difference between the brains of typical males and those with autism - and then females with and without autism.

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There really needs to be more research and clinical attention toward females 'on the spectrum'”
Dr Meng-Chuan LaiUniversity of Cambridge
They found the brains of females with autism "look" more like - but still not the same as - typical male brains, when compared with the brains of females without autism.
But the same kind of difference was not seen in males with autism - so their brains did not show "extreme" male characteristics.
Dr Meng-Chuan Lai, who worked on the study said: "What we have known about autism to date is mainly male-biased.
"This research shows that it is possible that the effect of autism manifests differently according to one's gender.
"Therefore we should not blindly assume that everything found for males or from male-predominant mixed samples will apply to females."
He said future research may need to look at males and females equally to discover both similarities and differences.
Dr Lai added: "Lastly, there really needs to be more research and clinical attention toward females 'on the spectrum'."
'Masking'

Start Quote

Many girls go on to develop secondary problems such as anxiety, eating disorders or depression”
Carol Povey,National Austitic Society
Carol Povey, Director of The National Autistic Society's Centre for Autism, said: "Historically, research on autism has been largely informed by the experiences of men and boys with the condition.
"This important study will therefore help our understanding of how the condition differs between genders."
She added: "Girls can be more adaptive than boys and can develop strategies that often mask what we traditionally think of as the signs of autism.
"This "masking" can lead to a great deal of stress, and many girls go on to develop secondary problems such as anxiety, eating disorders or depression.
"It's important that we build on this study and more research is conducted into the way autism manifests in girls and women, so that we can ensure that gender does not remain a barrier to diagnosis and getting the right support."

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Friday 3 May 2013

MMR jab: Somali migrants have lingering fears on autism


MMR jab: Somali migrants have lingering fears on autism

A measles vaccination kit

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Health officials say vaccination rates against measles are worryingly low among Somali children in the US and UK because some parents still believe the MMR jab is linked to autism.
The officials say they are struggling to show that the vaccination is safe.
BBC Radio 4's The Report has found that the discredited former doctor Andrew Wakefield visited some Somali groups in the US.
Health authorities there blame him for the drop-off in MMR vaccinations.
Andrew Wakefield, who now lives in Texas, says Somalis in Minnesota already had fears about autism and MMR before his visit.
Somali Bakita Mohamed Haji lives in north-west London with her 10-year-old daughter, who suffers from autism.
Fears reinforced
She says her daughter's condition started after she was given the jab.
"My daughter was born normally but when I started the MMR, my daughter changed. Screaming all the time, crying. I went to the hospital and they said it's autism. I don't understand it. I'd never heard of it."

Start Quote

A number of individuals reached out to the community who planted the seed that there might be concerns about vaccination”
Kristen EhresmannMinnesota department of health
She wishes her daughter had never had the injection, which she believes caused the condition.
Health experts say her fears, and those of other parents, have been reinforced by a common belief in their community that only the children of Somali families that emigrate to the West develop autism, whereas those who stay at home do not.
While there is no solid evidence to confirm this, a small study of immigrants in Stockholm, the Swedish capital, did suggest that families using services for autistic children were more likely than expected to be from West and East Africa.
Discredited study
And separate research in the UK also found there was a higher than average incidence of autism in children born to African mothers - but it did not establish a reason why.
The fears of Somali parents echo those sparked by a study in The Lancet medical journal that linked MMR with autism.
The study was discredited and withdrawn. Andrew Wakefield, the lead author, was struck off by the General Medical Council because of ethical concerns about his methods.

FIND OUT MORE

Coloured Transmission Electron Micrograph of a section through a human cell infected with the measles virus
For more details of how to listen again, go to The Report website.
A subsequent raft of research has found no link between the MMR vaccine and autism, and average vaccination rates are back up to 94% in England for five-year-olds receiving the first dose of MMR.
Parents frustrated
But take-up of the vaccine is much lower among Somali children in the UK and in the US.
In Minnesota in the Midwest, the Somali American Autism Foundation has pledged to find out what causes the condition in their children.
Idil Abdul runs the foundation and has a son, 10, who is autistic.
"If your child is sick, the goal is you take them to the doctor and the doctor tells you what's wrong with the kid and how to make him better. With autism, we go to the doctor and they say, 'We don't have a cause, we don't have a cure, too bad, so sad, you might not get access to early intervention, have a nice day.'"

Start Quote

It is very difficult to dislodge beliefs from whatever community if they're dealing with a disease that isn't adequately explained”
Prof David SalisburyDirector of immunisation at the Department of Health
She does not believe there is a link between MMR and autism but says parents are frustrated because they do not feel their concerns are being listened to by the authorities.
'Planted the seed'
Andrew Wakefield visited Minnesota at least three times between 2010 and 2011, promising research to find answers to their questions.
The Minnesota department of health says his visit contributed to a drop-off in MMR uptake among Somalis and says only around 50% of Somali children now receive the vaccine.
Kristen Ehresmann, the state's director of infectious disease, believes he had an influence on Somali perspectives.
"There were a number of individuals who reached out to the community who planted the seed that there might be concerns about vaccination and what role it could play.
"Since that time we've seen vaccination rates drop off accordingly."
Andrew Wakefield denies his visit caused the drop in Somali children having the MMR jab, claiming the trend was already happening.
'Vaccination champions'
He said: "The reason that I was invited was to help address the Somalis' pre-existing fears about developmental regression in their children following MMR immunisation."
Although there are no official statistics, vaccination rates are also believed to be low among Somali children in London.
Shukri Osman, a parent of an autistic child, estimates that only half the Somali parents she knows have taken up the vaccine.
And in Brent, the area in north-west London where she lives, the council says low uptake in the Somali community has been recognised for a number of years.
It is currently training up "community vaccination champions" and now has an immunisation team with Somali-speakers.
Engrained perceptions
Prof David Salisbury, the director of immunisation at the Department of Health, said: "We know that there is not an association between MMR and autism, and that I'm sure has been said many times to Somali community leaders."
But even he admits it will be hard to change what may have become engrained perceptions.
"I think we know it is very difficult to dislodge beliefs from whatever community if they're dealing with a disease that isn't adequately explained on the basis of the cause. "
You can listen again to The Report on BBC Radio 4 via the Radio 4 website or The Report download.

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