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» neurodegeneration and microbiology

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image: The Seat of Memory

The Seat of Memory

By | September 1, 2011

Early on, researchers had learned that the hippocampus was the structure in the brain where long-term memories were created and stored, but it was not known whether the different cell types within this structure might be more or less susceptible to the aging process.

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image: Piggyback Pathogen

Piggyback Pathogen

By | September 1, 2011

Editor’s Choice in Immunology

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image: The Cytokine Cycle

The Cytokine Cycle

By | September 1, 2011

The initiating cause of Alzheimer’s disease is still unknown. However, from our studies it’s clear that many types of neuronal damage—­­from traumatic brain injury, to epilepsy, infection, or genetic predisposition—­can activate brain immune cells—microglia and astrocytes-- promoting them to produce IL-1 and S100 inflammatory cytokines.

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image: The Age-Old Fight Against Antibiotics

The Age-Old Fight Against Antibiotics

By | August 31, 2011

Researchers find antibiotic resistance genes in 30,000-year-old bacteria, suggesting such resistance is not a modern phenomenon.

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image: Fair Trade at Plant Roots

Fair Trade at Plant Roots

By | August 11, 2011

Plant and fungal symbionts swap more resources with partners that provide a greater return of nutrients.

3 Comments

image: Arsenic-Based Life, Open to Critique

Arsenic-Based Life, Open to Critique

By | August 10, 2011

A researcher is repeating the controversial experiments that suggested a bacterium used arsenic rather than phosphorus in its DNA—with the world watching.

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image: Nicotine Protects Against Parkinson’s?

Nicotine Protects Against Parkinson’s?

By | August 3, 2011

The addictive component of cigarettes saves dopamine neurons from a Parkinson's-like decline, providing a new avenue for potential treatment.

6 Comments

image: Harmful Bacterial Metabolites

Harmful Bacterial Metabolites

By | August 1, 2011

Gut bacteria that feed on healthy food appear to amplify the nutritional benefits of those foods. However, they also appear to amplify the undesirable effects of unhealthy food. 

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image: Capsule Reviews

Capsule Reviews

By | August 1, 2011

First Life, Radioactivity, Brain Bugs, Life of Earth

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Contributors

August 1, 2011

Meet some of the people featured in the August 2011 issue of The Scientist.

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