Life Sciences

Found results: 11545

Nanotechnology

Nanosprits for cells

Silicon nanoeedles, like a syringe, pierce the membrane of growing cells, releasing molecules of substances that cover their surface into the cytoplasm. Matrices of such nanoeedles promise to occupy an important place in the arsenal of cell biology methods.

21.01.2010
Other life sciences

Artificial muscles will restore the ability to blink

Scientists have developed and tested an artificial muscle capable of restoring facial expressions lost as a result of paralysis. Further improvement of the technology promises victory over paralysis of other parts of the body.

21.01.2010
Cellular technologies

Stem cells will help in the treatment of lower limb ischemia

More than 50% of patients with severe vascular ischemia of the lower extremities will be able to avoid leg amputation or operations to remove vessels, their prosthetics or shunting thanks to the stem cell treatment method developed by St. Petersburg scientists.

20.01.2010
Nanotechnology

"Nanoshiki" for cleaning vessels

Similar to dish brushes (or, rather, burdock heads), nanoparticles clean blood vessels from atherosclerotic plaques not mechanically, but due to the ability to attach to the walls of arteries with the help of protein "spikes" and slowly release drugs.

20.01.2010
Biomedicine

Alzheimer's disease: new targets

The aim of the work was to search for therapeutic targets for the treatment of Alzheimer's disease; the next stage will be the search for compounds capable of neutralizing the action of kinases that cause hyperphosphorylation of tau protein.

19.01.2010
New in Gerontology

Pathophysiology of aging, longevity and age-related diseases

On April 18, 2007, the international conference "Pathophysiology of Aging, longevity and age-related diseases" was held in Palermo, Italy. In the proposed report, we present basic information about the most important issues discussed.

18.01.2010
Biomedicine

Obesity and cancer: new data

The fat-splitting enzyme monoacylglycerollipase is a potential target for the treatment of particularly malignant forms of cancer. In addition, the data obtained may explain the relationship between obesity and cancer.

18.01.2010
Biomedicine

"Hormone meters" based on carbon nanotubes

Chips, on the surface of which carbon nanotubes are applied using an inkjet printer, will in the future allow, without leaving home, to quickly determine the content of hormones in the blood.

18.01.2010
Nanotechnology

"Nanococtail" for visualization and destruction of tumors

The combination of two types of nanoparticles, one of which finds a tumor, and the other destroys it, will not only increase the efficiency of operations, but also develop effective cancer treatment methods without surgical intervention.

18.01.2010
Genetics

The Y chromosome is the engine of evolution

The Y chromosome has traditionally been considered a weak point of male organisms, reducing genetic diversity and hindering evolution. However, recent studies have shown that fears about the extinction of the male gender are greatly exaggerated.

14.01.2010
Cellular technologies

"Elixir of youth" for nerve stem cells

Nanocarcass not only provides comfortable conditions for implanted neural stem cells, but also slows down the rate of their growth and differentiation, which facilitates the "acclimatization" of cells in new conditions.

13.01.2010
Prolonging youth

Life extension: the opinion of a well-informed optimist

– British gerontologist Aubrey de Grey believes that in 20 years scientists will be able to extend a person's life up to 1000 years. How do you feel about this? – I've heard this nonsense too...

12.01.2010
Biomedicine

A hangover pill (not for everyone and not soon :)

A substance codenamed Alda1 can (if it didn't work out to drink less) to save the owners of a defective variant of aldehyde dehydrogenase from the pangs of a hangover. However, the effect has been tested so far only in a test tube...

11.01.2010