Life Sciences

Found results: 11545

Theories of aging

Telomerase is an eternally young topic

Currently, several drugs are being studied, the mechanism of action of which is somehow directed at the activity of the telomerase enzyme. To treat cancer, they try to inhibit telomerase, to prolong life – to activate it.

30.11.2009
Biomedicine

Genetic testing – to the masses!

Genetic tests appearing on the medical services market cause confusion among doctors and doubts among patients. American medical companies decided to identify among the many genetic tests really effective and appropriate.

30.11.2009
Biomedicine

Against melanoma – vaccine-implant

An implant made of biodegradable plastic impregnated with a mixture of two substances – cytokines and tumor antigens – triggers an attack of the immune system on melanoma. In fact, it is a cancer vaccine, only with an unusual method of administration.

27.11.2009
Cellular technologies

Amniotic stem cells – Rising stars of cell therapy

Stem cells of amniotic fluid (amniotic fluid) can give rise to almost any type of cell and, unlike embryonic stem cells, do not form tumors when injected into the body of animals.

25.11.2009
Bioethics

Transplantology in law

The order of the Ministry of Health and Social Development of the Russian Federation "On approval of the Procedure for providing medical care by organ transplantation" is commented by the director of the Center for Transplantology and Artificial Organs, corresponding member of the Russian Academy of Medical Sciences Sergey Gauthier.

24.11.2009
Genetics

GATA-1 – Gene traffic controller

The GATA-1 gene plays the role of a universal regulator of the work of other genes. Scientists have found 2616 genes that, in response to the addition of the encoded GATA-1 protein, begin to work either at least twice as actively, or, on the contrary, reduce activity.

24.11.2009
Bioethics

Transplantology is illegal

Among the "non–working" articles in our criminal legislation is Article 120 - "Coercion to the removal of human organs or tissues for transplantation."

24.11.2009
Biomedicine

"Velcro" for tumor cells

A new method for detecting tumor cells in the bloodstream will improve the early diagnosis of metastasis and monitoring the results of cancer treatment.

24.11.2009
Other life sciences

For the first time on the screen: neutrophils are on the trail

By moving microparticles containing chemicals characteristic of bacteria with the help of "optical tweezers", the researchers directed the movement of immune cells – neutrophils – in the right direction and filmed unique videos.

23.11.2009
Biomedicine

Medications for Down syndrome?

In addition to compounds that increase the activity of norepinephrine, several other drugs are undergoing clinical trials involving patients with Down syndrome.

23.11.2009
Biomedicine

Scientific scandal hinders the development of new flu drugs

The dispute about the mechanism of action of anti-influenza drugs led to the fact that the authors of two different hypotheses stopped talking to each other. The lack of consensus may slow down the development of new flu treatments.

23.11.2009
Other life sciences

Bioinformatics is not a science

In recent decades, many new sciences with fashionable names have appeared: bioinformatics, genomics, proteomics, systems biology... But in fact, bioinformatics is not a science, but a set of technologies and tasks that are solved with their help.

19.11.2009
Nanotechnology

Contact lenses-chameleons

Contact lenses reacting to ultraviolet radiation are made of a new polymer permeated with a complex network of nanochannel filled with photochromic dye.

18.11.2009
Genetic engineering

Gene therapy: successes, difficulties, prospects

Recent advances in the field of gene therapy indicate that decades of scientific research have not been in vain and the victory of man over incurable genetic diseases is not far off. What to expect in the near future?

18.11.2009
Biomedicine

Amyloid plaques can be removed from neurons

Scientists have managed to remove beta-amyloid crystals from the brains of experimental animals with Alzheimer's disease, the accumulation of which in nerve cells is the cause of the development of the disease.

17.11.2009
Genetic engineering

Chicken eggs with human protein

It is possible to obtain human proteins in chicken eggs without creating genetically modified chickens: it is enough to infect eggs with a harmless virus with a built-in gene of the desired protein.

17.11.2009
Cellular technologies

Stem cell breasts: not long to wait

Clinical studies of the technique of restoring almost natural breasts from patients' own stem cells will begin in the spring. In about three years, the technique can be introduced into clinical practice.

16.11.2009
Other life sciences

Microchips, soluble without sediment

Organic electronic devices that completely decompose in the body can be used in the production of temporary medical implants and for targeted prolonged drug delivery.

16.11.2009