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» stem cells, neuroscience and evolution

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image: Sleep’s Kernel

Sleep’s Kernel

By and | March 1, 2016

Surprisingly small sections of brain, and even neuronal and glial networks in a dish, display many electrical indicators of sleep.

1 Comment

image: Who Sleeps?

Who Sleeps?

By and | March 1, 2016

Once believed to be unique to birds and mammals, sleep is found across the metazoan kingdom. Some animals, it seems, can’t live without it, though no one knows exactly why.

6 Comments

image: Week in Review: February 22–26

Week in Review: February 22–26

By | February 26, 2016

Questions about how E. coli evolves; spermatids in a dish; fighting bacteria with virus-like molecule; what drives metastasis; antibodies fight Ebola in monkeys

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image: Toward Making Sperm in the Lab

Toward Making Sperm in the Lab

By | February 25, 2016

Researchers devise a technique for creating gametes from murine embryonic stem cells.

4 Comments

image: iPSCs and Cancer Risk

iPSCs and Cancer Risk

By | February 24, 2016

Reprogramming adult human cells into stem cells in vitro does not generate harmful mutations, scientists report.

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image: Similar Data, Different Conclusions

Similar Data, Different Conclusions

By | February 23, 2016

By tweaking certain conditions of a long-running experiment on E. coli, scientists found that some bacteria could be prompted to express a mutant phenotype sooner, without the “generation of new genetic information.” The resulting debate—whether the data support evolutionary theory—is more about semantics than science.

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image: Insulin-Producing Mini Stomachs

Insulin-Producing Mini Stomachs

By | February 22, 2016

Scientists grow gastric organs in vitro that can restore insulin production when transplanted into mice.

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image: Adjustable Brain Cells

Adjustable Brain Cells

By | February 18, 2016

Neighboring neurons can manipulate astrocytes. 

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image: Demystifying BOLD fMRI Data

Demystifying BOLD fMRI Data

By | February 17, 2016

What does blood oxygen level–dependent functional magnetic resonance imaging actually tell us about brain activity? 

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image: More Mini Brains

More Mini Brains

By | February 17, 2016

Simple versions of brain organoids could serve as new models for testing the effects of drugs, researchers reported at this year’s AAAS meeting. 

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