ScienceDaily: Top Science News |
- Making memories last: Prion-like protein plays key role in storing long-term memories
- Heart of silk: Scientists use silk from the tasar silkworm as a scaffold for heart tissue
- Life discovered on dead hydrothermal vents
| Making memories last: Prion-like protein plays key role in storing long-term memories Posted: 27 Jan 2012 01:24 PM PST Memories in our brains are maintained by connections between neurons called "synapses." But how do these synapses stay strong and keep memories alive for decades? Neuroscientists have discovered a major clue from a study in fruit flies: Hardy, self-copying clusters or oligomers of a synapse protein are an essential ingredient for the formation of long-term memory.  |
| Heart of silk: Scientists use silk from the tasar silkworm as a scaffold for heart tissue Posted: 27 Jan 2012 10:59 AM PST Damaged human heart muscle cannot be regenerated. Scar tissue grows in place of the damaged muscle cells. Scientists are seeking to restore complete cardiac function with the help of artificial cardiac tissue. They have succeeded in loading cardiac muscle cells onto a three-dimensional scaffold, created using the silk produced by a tropical silkworm.  |
| Life discovered on dead hydrothermal vents Posted: 24 Jan 2012 03:42 PM PST Microbiologists have found that the microbes that thrive on hot fluid methane and sulfur spewed by active hydrothermal vents are supplanted, once the vents go cold, by microbes that feed on the solid iron and sulfur that make up the vents themselves.  |
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