Cardiology

Unlocking a cell's potential to regenerate the heart

Some organisms have a remarkable capacity for regenerating tissue. If a fish or salamander suffers heart damage, for instance, their cells are able to divide and successfully repair the injured organ. Imagine if you could ...

Medical research

Leptin hormone spurs body's shift from burning carbs to fat

To keep the human brain supplied with energy when food was scarce, mammals evolved the ability to switch from burning carbohydrates to burning fat in order to preserve skeletal muscle that would otherwise be metabolized and ...

Cardiology

First of our three billion heartbeats is sooner than we thought

When does our heart first start to beat? Until now, researchers thought that the first time our heart muscle contracted to beat was at eight days after conception in mice, which equates to around day 21 of a human pregnancy.

Medical research

Lab-grown nerve cells make heart cells throb

Researchers at Johns Hopkins report that a type of lab-grown human nerve cells can partner with heart muscle cells to stimulate contractions. Because the heart-thumping nerve cells were derived from induced pluripotent stem ...

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