The Scientist

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image: T Cells of the Skin

T Cells of the Skin

By | March 18, 2015

A census of adaptive immune system components in human skin reveals a variety of resident and traveling memory T cells.

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image: Age-Old Questions

Age-Old Questions

By | March 1, 2015

How do we age, and can we slow it down?

1 Comment

image: As the Brain Ages

As the Brain Ages

By | March 1, 2015

See human brains age in week-by-week time lapse images that divulge the existence of tiny strokes that damage white matter.

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image: Contributors

Contributors

By | March 1, 2015

Meet some of the people featured in the March 2015 issue of The Scientist.

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image: Growth Hormone Guidance

Growth Hormone Guidance

By | March 1, 2015

Intact growth hormone signaling pathways are needed for methionine restriction to extend mouse lifespan.

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image: Long Live Collagen

Long Live Collagen

By | March 1, 2015

Increased collagen expression is a common feature of many different pathways to extended longevity in worms.

3 Comments

image: Of Cells and Limits

Of Cells and Limits

By | March 1, 2015

Leonard Hayflick has been unafraid to speak his mind, whether it is to upend a well-entrenched dogma or to challenge the federal government. At 86, he’s nowhere near retirement.

3 Comments

image: Quantity or Quality?

Quantity or Quality?

By | March 1, 2015

Living longer doesn’t necessarily mean living healthier.

1 Comment

image: Rethinking Telomeres

Rethinking Telomeres

By | March 1, 2015

Not only do telomeres protect the ends of chromosomes, they also modulate gene expression over cells’ lifetimes.

2 Comments

image: Sharing Longevity Data

Sharing Longevity Data

By | March 1, 2015

Aging research would greatly benefit from consistently making annotated life span data available.

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