Scientists from the University Medical Center Hamburg-Eppendorf have used a mix of cells for obtaining of cardiac tissue samples. Then they were used as patches for the hearts of guinea pigs with heart failure, Zee News reports.

Researchers often talk about an environmental pollution with toxic waste and its negative effects on a human. However, many people forget about so-called noise pollution, "Rossiyskaya Gazeta" writes. Meanwhile, this type of pollution is no less dangerous than, for example, the dirty air.

American scientists have found that coenzyme NAD+ is the main factor in the process of youth preservation and of delay of aging.

. As the Eurek Alert says, the wheelchair has a built-in navigation system, an advanced safety system and a warning system. The processor in the chair is able to scan the surrounding space on six levels.

It is known, the later a woman decides to have a baby, the higher the risk of complications during pregnancy and the risk of birth defects in the child. But recent research has shown that if a child was born by 40-year-old mother, or even older women with use of reproductive technology, then this child had less birth defects compared with a child, conceived by a mother of the same age in a natural way.

The experiment was conducted at Cambridge University under the guidance of a neuroscientist Madeline Lancaster. According to the "Health in Russia and the world" from early childhood the researcher was fascinated by science and for a long time she had a dream to create an artificial copy of the human brain in a laboratory.

According to UPI.com the scientists of Northwestern University claim that bones may be printed on a 3D-printer. For this purpose, researchers have designed a special ink from mineral hydroxyapatite and the biodegradable polymer. The scientists have conducted experiments in stem cells and animals.

It is known that women are twice more likely than men suffer from depression. A lot of them refuse to take hormonal contraceptives because of mood changes. According to UPI.com the scientists from the University of Copenhagen have analyzed data of 1061997 women. The average age of participants was 24 years.

It is reflected in women’s decisions. Such conclusion was made by the researchers from Concordia University. Their experiment involved 45 women with regular menstrual cycles. Participants answered the questions about menstruation, contraceptive use, pregnancy, hormonal medications taken and lifestyle, The Times of India reports.