News

Found results: 3424

News

Anniversary of the "grandmother of modern neuroscience"

"I am deeply excited that I have reached the age of 100, having lived a life with joy, which, I think, few have experienced. I'm not afraid of death, it doesn't matter to me when it comes," Nobel laureate, neuroscientist, Senator for life Rita Levi–Montalcini told reporters on the eve of the anniversary.

23.04.2009
News

Induced pluripotent stem cells: fibroblasts are optional

To create induced pluripotent stem cells, scientists used hemocytoblasts, precursors of all types of blood cells. In the process of cultivation, scientists by the method of transduction introduced reprogramming factors into them – genes whose expression is observed in embryonic stem cells.

22.04.2009
News

Genes that prevent aging are being sought

Genes common to humans and rodents have been identified, the activity of which changes during aging. With age, 56 of them increase protein expression, and 17 others decrease activity. The results of the study suggest that genes are able to adapt to aging, participate in the protection of the body during this process and even slow it down.

22.04.2009
News

Caution: Silicone!

Any introduction of liquid silicone is life-threatening. When silicone enters a vein, it enters the bloodstream, which inevitably leads to death. In addition, subcutaneous injection of silicone can cause an allergic reaction, disorders of the immune system and disfigure the patient's body and face.

20.04.2009
News

Rusnano will save, but invest

After the reduction of funding, the Russian Nanotechnology Corporation (Rusnano) should spend 45 billion rubles on activities and implementation of projects in 2009 instead of the 130 billion previously planned.

20.04.2009
News

Don't get old, don't get sick, don't breathe...

Scientists significantly reduced the level of the VHL-1 signaling protein and found that this not only increased the resistance of worms to hypoxia (which they tried to achieve), but also significantly slowed the aging of nematodes.

20.04.2009
News

"The formula of diseases"

In the future, the authors believe, the schemes they have created will be used in everyday medical practice: for example, during an examination, a doctor will be able to obtain information about all the patient's diseases, related diseases and – in the future – a set of genes responsible for their development.

20.04.2009
News

Direct reprogramming of cells

The method of cell reprogramming, which the authors called "transcriptome induced phenotype remodeling" (transcriptome induced phenotype remodeling) is that the original cell is not turned into a pluripotent one, capable of developing in several directions. Instead of "embryonic genes", a large amount of matrix RNA is injected into the cell, on which proteins characteristic of the desired type of cells are synthesized.

20.04.2009
News

DNA sequencing: slower, but more accurate

Physicists from Brown University took as a basis the well-known DNA sequencing technique, which involves reading information when passing DNA molecules through miniature holes in the material, and eliminated its main drawback, which was that the rate of passage of base pairs through the hole was too high (as a result, the decoding accuracy decreased).

17.04.2009
News

Did you hurt your Achilles tendon? Contact the horsemen!

Recently, stem cell treatment of Achilles tendon rupture in racehorses has spread everywhere, since these animals, sometimes costing millions of dollars, such injuries occur very often. Biotech firm MedCell Bioscience has announced its intention to start testing its method on humans.

16.04.2009
News

Sperm is a record holder

According to the doctors of the American clinic who performed the IVF procedure, 22 years between the time of delivery of a sperm sample in 1986 and fertilization in 2008 is a world record.

15.04.2009
News

Neurons from embryonic stem cells are ready for transplantation

During transplantation to newborn mice, committed (differentiating in a certain direction) neural progenitor cells created from embryonic stem cells turned into working neurons and successfully integrated into the structures of the cerebral cortex and olfactory bulb. The formation of tumors was not recorded at the same time.

15.04.2009
News

Achievement – the first cloned camel

The world's first female camel clone, named Injez ("Achievement"), was born at the Camel Reproduction Center in Dubai (UAE) last Wednesday.

14.04.2009
News

Long-acting analgesic: the same as usual, but in liposomes

Researchers from Harvard Medical School proposed to inject the drug for local anesthesia saxitoxin in combination with the steroid hormone dexamethasone into liposomes. In this form, one injection for a week blocked the conduction of impulses along the sciatic nerve.

14.04.2009
News

How to accelerate the regeneration of the heart muscle?

New cells are formed in the heart muscle throughout life. The study of the mechanism of formation of new cardiomyocytes can lead to the creation of tools that accelerate this process and can help restore the myocardium after a heart attack.

14.04.2009
News

Vitamins are different

In every third package of multivitamins, the content of ingredients does not correspond to the information on the package. And part of it was also contaminated with lead.

14.04.2009
News

Safe needle for injection

The new needle is given an S-shape; inside it is a thread used as a conductor (similar to the conductor in a catheter). During the injection, the force is applied not to the needle, but to the conductor, thanks to a special cannula device.

13.04.2009