Life Sciences

Found results: 11545

Other life sciences

"Load driver" for a biocomputer

Such devices in conventional electronics are not an integral part of logic circuits – they only help them work correctly, neutralizing parasitic currents and stabilizing the operation of transistors.

25.11.2014
Cellular technologies

Nails are another source of stem cells

A group of scientists from the University of Southern California has discovered a new population of stem cells around the nail plate that are capable of self-renewal and differentiation into different types of cells.

25.11.2014
Other life sciences

How to neutralize the "protein of forgetfulness"

After suppressing the activity of the regulatory protein PERK or reducing its expression level through gene manipulation, the researchers found a 30% improvement in memory of both positive and negative experiences.

24.11.2014
Cellular technologies

Immortal cells

A group of scientists led by James Thomson, a pioneer in the study of stem cells, has found a way to make mouse progenitor cells responsible for the formation of blood and vascular tissue practically immortal.

24.11.2014
Other life sciences

Computer games are more effective than antidepressants

Another study showed that in a month of computer games (30 hours a week), the condition of elderly patients improved in the same way as in 2 months of taking traditional antidepressants.

24.11.2014
Other life sciences

Bacteria of completeness and forgetfulness

Gastritis – from improper nutrition, excess weight from hormonal disorders, and caries from sweets. These statements have been considered true for years, but recently scientists have found out that everything is wrong, and these and many other of our troubles are to blame... bacteria.

21.11.2014
Genetic engineering

Hemophilia gene therapy: the first success

After gene therapy, the frequency of spontaneous bleeding in patients with severe hemophilia B decreased by 90%, and the frequency of use of the blood clotting factor IX drug decreased by 92%.

20.11.2014
Other life sciences

Scared? Smell the oxytocin!

German scientists have demonstrated in humans how a nasal spray containing the "hormone of love" – oxytocin – contributes to the suppression of fear.

20.11.2014
Genetics

Innate orientation

The results of another study confirmed that a person's sexual orientation is determined by his genome. However, one should not assume that scientists have already found some "homosexuality genes".

19.11.2014
Other life sciences

Fooled macrophages

Under the action of substances secreted by cancer cells, macrophages cease to synthesize anti-tumor cytokines and begin to secrete molecules that accelerate tumor growth and blood vessel germination, cease to attract and initiate other cells of the immune system and begin to block the antitumor immune response.

18.11.2014
Cellular technologies

Fibroblast blood vessels

The new method is not only technically simpler, but also safer than existing ones. Vascular endothelial cells obtained with its help from human fibroblasts form blood vessels and improve blood circulation in the limbs of mice.

18.11.2014
Biomedicine

Small interfering RNAs against cancer

The use of miRNA suppressing the expression of the KRAS oncogene not only dramatically stops the growth of cancer in the cells of the lung and colon, but also prevents the spread of metastases.

17.11.2014
Genetics

The search for "longevity genes" continues

Oleg Glotov, a leading researcher at the Department of Genetics and Breeding of St. Petersburg State University, spoke about the genes of longevity, the influence of medicine on the gene pool of mankind and how diseases will be treated in the future.

17.11.2014
Nanotechnology

Synthetic platelets

Nanoparticles injected into the blood, imitating all the properties of natural platelets, are able to reduce the bleeding time by 65%, and dissolve in the blood when the need for their presence disappears.

17.11.2014