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Features / Special Reports / 2013 Year in review

Notable papers of 2013

19 December 2013

Our annual list of the most influential papers in the autism field is culled from suggestions solicited from SFARI staff, as well as from experts in the field. Below is a selection of just some of these papers, presented in chronological order. SFARI director Louis Reichardt expounds on the list in this column.


 

npaper11. Can nutritional supplements help treat some cases of autism?

A handful of studies published in late 2012 and early 2013 point to dietary deficiencies as a contributing factor in some forms of autism, suggesting that supplements such as folic acid may help treat and even prevent the disorder.

Surén P. et al. JAMA 309, 570-577 (2013) PubMed

 

 

npaper22. Genome-editing tools compose new models of autism

Thanks to a suite of new tools based on synthetic biology, it’s now possible to quickly and cheaply insert autism-linked mutations into living cells in the lab, according to two studies published 15 February in Science.

Cong L. et al. Science 339, 819-823 (2013) PubMed

Mali P. et al. Science 339, 823-826 (2013) PubMed

 

 

npaper33. Twin study suggests girls are protected from autism risk

A comparison of autism-like behaviors in nearly 10,000 pairs of fraternal twins suggests that girls are somehow protected from the disorder. The findings, published 19 February in the Proceedings of the National Academy of Sciences, may partly explain why autism is four times more common in boys than in girls — one of the oldest and most puzzling statistics in the field.

Robinson E.B. et al. Proc. Natl. Acad. Sci. USA 110, 5258-5262 (2013) PubMed

 

npaper4

4. Statins improve symptoms of Rett syndrome in mice

Defects in cholesterol metabolism may influence the severity of Rett syndrome, suggesting a treatment for the autism-related disorder, according to research published in July in Nature Genetics. We first reported these findings from the 2013 International Meeting for Autism Research in May.

Buchovecky C.M. et al. Nat. Genet. 45, 1013-1020 (2013) PubMed

 

npaper55. Gene therapy reverses Rett syndrome symptoms in mice

A virus that ferries healthy copies of the Rett syndrome gene across the blood-brain barrier can reverse symptoms in female mice that model the disorder, according to a report published 21 August in the Journal of Neuroscience.

Garg S.K. et al. J. Neurosci. 33,13612-13620 (2012) PubMed

 

 

20130916newslonggenes6. Autism genes are surprisingly large, study finds

Length matters: Disease implications for long genes

What does the existence of long genes tell us?

Enzymes called topoisomerases are crucial for the expression of extremely long genes in neurons, according to a study published 5 September in Nature. More than one-quarter of these genes are known autism candidates, the study found. The paper set off a flurry of discussion, including a Viewpoint by the lead researcher Mark Zylka about the implications of this finding for autism.

King I.F. et al. Nature 501, 58-62 (2013) PubMed

 

 

npaper77. Small deletions, duplications of DNA may up autism risk

Two new studies, published in September and October, found more small deletions and duplications of DNA in individuals with autism than in controls. These variants may also affect the severity of the disorder.

Krumm N. et al. Am. J. Hum. Genet. 93, 595-606 (2013) PubMed

Poultney C.S. et al. Am. J. Hum. Genet. 93, 607-619 (2013) PubMed

 

 

npaper88. Drug fixes cellular defects in autism-related disorder

A new stem-cell model of Phelan-McDermid syndrome points to a possible treatment for the rare autism-related disorder, according to a study published 16 October in Nature.

Shcheglovitov A. et al. Nature 503, 267-271 (2013) PubMed

 

 

npaper99. Classic sign of autism appears early in infancy, study says

Baby boys who will later be diagnosed with autism show a loss of interest in other people’s eyes between 2 and 6 months of age, according to a study published 6 November in Nature. This is the earliest behavioral marker of autism found to date.

Jones W. and A. Klin Nature Epub ahead of print (2013) PubMed

 

 

npaper1010. Studies map gene expression across brain development

Now that genetic studies have implicated several hundred genes in autism, researchers are turning their attention to where and when in the healthy young brain these genes are expressed. The first two studies to tackle these questions appeared 21 November in Cell.

Willsey A.J. et al. Cell 155, 997-1007 (2013) PubMed

Parikshak N.N. et al. Cell 155, 1008-1021 (2013) PubMed

 


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