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 ...

Neuroscience

Control of fertility: A new player identified

Individual small RNAs are responsible for controlling the expression of gonadoliberin or GnRH (Gonadotropin-Releasing Hormone), a neurohormone that controls sexual maturation, the appearance of puberty, and fertility in adults. ...

Medical research

Micro heart muscle created from stem cells

Scientists at the Gladstone Institutes have invented a new way to create three-dimensional human heart tissue from stem cells. The tissue can be used to model disease and test drugs, and it opens the door for a precision ...

Psychology & Psychiatry

Brain network charts could help predict attention impairment

(HealthDay)—Growth charting methods identify a correlation between intrinsic connectivity networks (ICN) and attention performance, according to a study published online April 13 in JAMA Psychiatry.

Medical research

Study suggests stem cells may repair dying retinal cells

Researchers at St. Erik Eye Hospital and Karolinska Institutet have for the first time successfully transplanted human retinal pigment epithelial cells derived from stem cells into eyes that are similar to human eyes. The ...

Health

The science behind why you love a weekend lie-in

Sleeping in over the weekend is one of life's great pleasures. Yet some of us are much better at it than others. A teenager is much more likely to emerge from their bed at midday than their middle-aged parents – but even ...

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