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image: Vitamin A’s Influence on Immunity

Vitamin A’s Influence on Immunity

By | March 19, 2014

Exposure to vitamin A in the womb influences immune system development and lifelong ability to fight infections, a mouse study shows. 

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image: Week in Review: February 3–7

Week in Review: February 3–7

By | February 7, 2014

Federal stem cell regulations vary; Salmonella exploit host immune system; microglia help maintain synaptic connections; prosthesis re-creates feeling of touch

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image: Immune Response Promotes Infection

Immune Response Promotes Infection

By | February 6, 2014

Salmonella enterica can exploit a standard immune response in mice to promote its own growth.

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image: Shivering Akin to Exercising

Shivering Akin to Exercising

By | February 4, 2014

Working out and shivering in the cold both upregulate hormones and genes involved in brown fat production.

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image: Pruning Synapses Improves Brain Connections

Pruning Synapses Improves Brain Connections

By | February 2, 2014

Without microglia to pluck off unwanted synapses in early life, mouse brains develop with weaker connections, leading to altered social behavior.

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image: Polymer Protects Mouse Heart

Polymer Protects Mouse Heart

By | January 20, 2014

Injection of microscopic particles of a plastic-like material protects mice from cardiac tissue damage following heart attack.

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image: A Ribbeting Tale

A Ribbeting Tale

By | January 1, 2014

A famous frog-hopping contest yields data that challenge previous lab estimates of how far a bullfrog can jump.

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image: Avoiding Salt

Avoiding Salt

By | January 1, 2014

In a newly identified tropism, plant roots steer clear of salinity.

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image: How HIV Destroys Immune Cells

How HIV Destroys Immune Cells

By | December 19, 2013

During HIV infection, CD4 T cells in lymphoid tissues initiate a highly inflammatory form of cell death that helps cripple the immune system.  

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image: Dogs, Dust Microbes, and Allergies

Dogs, Dust Microbes, and Allergies

By | December 16, 2013

Dust-borne bacteria from houses with dogs can prevent allergies in mice by changing their gut microbes.

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