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» human evolution and immunology

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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: March 10–14

Week in Review: March 10–14

By | March 14, 2014

Whole-genome sequencing in the clinic; blood-based biomarkers predict future cognitive problems; how some pain meds inhibit bacterial growth; ResearchGate launches Open Review

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image: Origins of Lactase Persistence in Africa

Origins of Lactase Persistence in Africa

By | March 13, 2014

Large-scale sequencing effort confirms several mutations that confer lactase persistence in Africans, while haplotype analysis sheds light on the trait’s origins.

3 Comments

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: 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: Inner Neanderthal

Inner Neanderthal

By | January 30, 2014

Two studies demonstrate the extent of Neanderthal DNA that persists in modern human genomes.

8 Comments

image: More than Calcium

More than Calcium

By | January 22, 2014

Ancient DNA analysis suggests that calcium and vitamin D deficiencies were not the only reasons that may have driven Neolithic Iberian people to drink milk.

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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.

1 Comment

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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