Life Sciences

Found results: 11545

Genetic engineering

Only two genes can replace the Y chromosome

Researchers from the University of Hawaii have shown that genetically modified mice with a Y-chromosome containing only two genes are able to develop normally and can even have offspring.

25.11.2013
Other life sciences

Short encyclopedia "-omik"

Briefly and clearly – about what new disciplines appeared in the era of big biology and what development the "classical" -omics received.

22.11.2013
Biomedicine

A wounded oncogene

Researchers from California managed to do what scientists have not been able to do for the last 30 years: identify an inhibitor of the mutant oncogene K-Ras, which is most involved in malignant processes and has a reputation for invulnerability to pharmacotherapy.

22.11.2013
Genetics

Our unknown cousin

A refined DNA analysis of the Denisovans showed that they interbred not only with Neanderthals and our direct ancestors, but also with a hitherto unknown extinct population of ancient people who lived in Asia more than 30 thousand years ago.

22.11.2013
Biomedicine

A heart surgeon to himself

A specialist in boilers and pipes suffering from Marfan syndrome gave a curious idea to cardiac surgeons. As a result, he survived himself and helped others.

21.11.2013
Biomedicine

When will a healthy person have a heart attack or stroke?

The risk scale, developed by American cardiologists, quite accurately determines from a conventional clinical blood test how long a person will live before fatal problems with the heart and blood vessels.

21.11.2013
Cellular technologies

The race for the heart from the printer

Most researchers do not expect the appearance of real whole hearts printed on a 3D printer in the next 10-15 years, but the Cardiovascular Innovation Institute hopes to implement its project within a decade.

21.11.2013
New in Gerontology

Unemployment ages men

The status of unemployed for a long (more than two years) period accelerates the aging of men at the DNA level.

21.11.2013
Other life sciences

Keep the tumor warm

A cancerous tumor grows faster and meets less resistance from the immune system if the body has to live at a low, uncomfortable temperature for it.

20.11.2013
Nanotechnology

How to create a molecular machine without the help of a living cell?

Lecture by V.A.Avetisov, Doctor of Physico-Mathematical Sciences, Head of the Laboratory of the Theory of Complex Systems of the Semenov Institute of Chemical Physics of the Russian Academy of Sciences "Molecular Machines: what is it and how to make them"?

20.11.2013
Genetic engineering

Hemophilia gene therapy was tested on dogs

This is the first time that hemophilia has been cured in large laboratory animals by delivering a gene to blood cells. The authors of the study expect that their method will be the first step towards the clinical practice of treating hemophilia in patients.

20.11.2013
Prolonging youth

Gastric bypass surgery – a method of rejuvenation?

In the most "severe" patients after gastric bypass surgery, not only weight loss and improvement of these tests were revealed, but also a significant increase in telomere length.

19.11.2013
Genetics

Heavy lungs

Half a century ago, the life expectancy of patients with cystic fibrosis – a rare hereditary disease – was about 30 years, but modern treatment can significantly prolong and make a full-fledged life of a person with a "breakdown" of the 7th chromosome.

19.11.2013
Genetics

Do you want to lose weight? Ask the geneticist how!

Siberian scientists have developed a system for determining the predisposition to overweight by nine genetic markers, on the basis of which you can get personal recommendations for combating obesity.

19.11.2013
Other life sciences

Excessive-insufficient diagnostics

On average, 30% of laboratory tests are prescribed unnecessarily and about the same number of tests are not prescribed in cases where they are necessary.

19.11.2013
Prolonging youth

Is it possible to stop the aging process?

It is more correct to say – not to stop, but to slow down, says V. Anisimov, Corresponding member of the Russian Academy of Sciences, Professor, President of the Gerontological Society at the Russian Academy of Sciences, member of the Council of the International Association of Gerontology and Geriatrics.

18.11.2013
Genetic engineering

Anticholesterol GM tomatoes

With the help of a protein synthesized by genetically modified tomatoes, it was possible to suppress the accumulation of lipids in the small intestine, due to which the level of "bad" cholesterol in the blood increased.

18.11.2013
Nanotechnology

Sperm with an envelope

"Nanoparticles are like empty envelopes that can be filled with different substances. The nanoparticles we use do not interact with sperm, which makes them an excellent means of delivery," explained the head of the study.

18.11.2013