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Spectrum: Autism Research News

Tag: mouse models

October 2010

Cognition and behavior: SHANK1 mutant mice do not model autism

by  /  25 October 2010

SHANK1 — a member of a family of proteins linked to autism — does not cause autism-like social deficits when mutated in mice, according to a study published online in September in Brain Research.

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Williams syndrome mouse hones in on genetic culprits

by  /  15 October 2010

A mouse model of Williams syndrome pinpoints a genetic region associated with the social behavior seen in the disorder, and may also yield insights into autism, says researcher Uta Francke, professor emeritus of genetics at Stanford University.

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Multi-gene deletion creates model for Angelman syndrome

by  /  7 October 2010

A new mouse model of Angelman syndrome that knocks out a large stretch of a key chromosome is clarifying some of the molecular mechanisms underlying the more severe forms of the disorder.

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Molecular mechanisms: Autism mutation causes neuroligin to misfold

by  /  6 October 2010

A point mutation in the autism-linked protein neuroligin-3 (NLGN3), seen in individuals with autism, causes the protein to misfold and localize to the wrong site in the cell, according to a study published in September in the Journal of Biological Chemistry.

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Estrogen reverses autism-like features in mice

by  /  4 October 2010

Two new studies provide clues that may explain sex differences in autism prevalence. Italian researchers have found that injecting estrogen into the brains of young male mice reverses some of the structural and behavioral changes associated with low levels of reelin — a brain protein that has been previously implicated in autism — and the effects endure into adulthood.

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August 2010

Studies explore amygdala problems in fragile X syndrome

by  /  31 August 2010

The amygdala, a brain region that regulates fear and anxiety, shows abnormal neuronal signaling in a mouse model of fragile X syndrome, according to two studies published this summer. These are the first to explore cellular defects in the region in fragile X.

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Fragile X protein linked to potassium channels

by  /  24 August 2010

Mouse models of fragile X syndrome show defects in two kinds of potassium channels — ubiquitous pores that control the flow of electrical current across neurons — in a brain area that processes sound, according to two papers published this summer.

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Misbehaving mice

by  /  19 August 2010

You’ll never hear Jacqueline Crawley talk about an ‘autistic mouse’. In fact, in her keynote address at IMFAR in May, she implored the audience to never use those two words in the same sentence.

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Brain’s adaptability begins at single synapse

by  /  10 August 2010

Researchers have uncovered an important molecular piece of a learning mechanism that occurs at the junction between neurons. The findings, which may help understand how the brain is disrupted in disorders such as autism, appear in the 24 June issue of Neuron.

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July 2010

Scientists flash videos of brain development in fragile X

by  /  30 July 2010

Scientists have for the first time captured a dynamic picture of brain defects in young mouse models of fragile X syndrome. The findings appeared in June in the Journal of Neuroscience.

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