Life Sciences

Found results: 11545

Biomedicine

Biology: lead from the front edge

With the help of experts "Gazeta.Ru" deals with the areas of biological research that were included in the top ten "front edge" studies (front research) selected by the Thomson Reuters media company in 2013.

06.05.2013
Cellular technologies

Cyborgs inside us?

"Cyborg cells", to the surface of which nanoparticles with special properties are attached, can be controlled at a distance using a magnetic field.

06.05.2013
Cellular technologies

Bioengineered trachea saved a child's life for the first time

This is the first case in the world when a child received a bio-artificial trachea using tissue engineering, created on the basis of non-absorbable nanofibers and stem cells isolated from his own bone marrow.

30.04.2013
Cloning

Mammoth Rebirth: Have you thought about the consequences?

The method of restoring extinct species causes a skeptical reaction of experts, but environmental, ethical and even legal problems that may arise when releasing restored species are already being discussed in the press.

30.04.2013
Nanotechnology

LEDs for injection

Using microscopic LEDs with wireless power instead of electrodes will avoid tissue injuries and give scientists the opportunity to obtain more reliable results.

30.04.2013
Genetic engineering

Why do we need fluorescent animals?

By inserting a fluorescent protein gene into DNA together with some other gene, it is possible to monitor where and with what intensity the embedded genes are expressed (that is, they ensure the synthesis of their corresponding proteins).

29.04.2013
Cellular technologies

Guidance system for stem cells

In in vitro experiments, stem cells coated with a hyperbranched polymer were attached to a "section of inflamed tissue" twice as often as unmodified cells. The authors hope to make the system even more efficient by changing the structure of the polymer.

29.04.2013
Biomedicine

Replace insulin with betatrophin?

With the discovery of a new hormone – betatrophin – insulin-dependent diabetics have a hope to replace daily triple injections with one injection of hormone per week, or even a year.

29.04.2013
Other life sciences

The biopsy needle will be replaced by micro-stars

For the procedure, hundreds of "stars" are injected into the body through an endoscope; after collecting the necessary samples, the micro-forceps are removed using a magnetized catheter.

26.04.2013
Biomedicine

HIV vaccine: another failure

American scientists have interrupted the phase II clinical trials of an experimental HIV vaccine, having become convinced of its ineffectiveness.

26.04.2013
Other life sciences

Nematodes help with obesity and metabolic syndrome

Parasitic nematodes in the intestine trigger immune mechanisms that have a positive effect on the state of metabolism, which is manifested by a decrease in the severity of symptoms of obesity and metabolic syndrome.

26.04.2013
Other life sciences

How does Alzheimer's begin?

Scientists at the Karolinska Institute have shown for the first time how important organelles of a nerve cell involved in its energy metabolism function at an early stage of Alzheimer's disease.

26.04.2013
Genetic engineering

Glowing Sheep – hecho en Uruguay

A group of Uruguayan scientists announced on April 24 the birth of genetically modified sheep that phosphorescent under ultraviolet light.

25.04.2013
Biomedicine

Throw the joint, roll the wheels!

Oral administration of cannabinoids has a more long-term analgesic effect than that which occurs when smoking marijuana.

24.04.2013
Other life sciences

Found a way to turn white fat into brown

A decrease in the expression of microRNA-155 in adipocytes activates a feedback loop that triggers the formation of brown fat cells and the breakdown of fat deposits.

24.04.2013