Life Sciences

Found results: 11545

Genetics

Life expectancy is affected by the number of copies of genes

By comparing a large number of DNA samples from children and elderly people, researchers identified genes whose copy number variation affects life expectancy by increasing or decreasing the risk of developing diseases.

06.02.2013
Biomedicine

New tuberculosis vaccine: the first pancake lump

Currently, about 12 new TB vaccines are being tested on humans, the first of which was MVA85A, which turned out to be ineffective. Almost 50 more candidate vaccines are currently being tested in the laboratory.

05.02.2013
Biomedicine

Two-stage immunotherapy for ovarian cancer

The results of the first phase of two-stage personalized ovarian cancer immunotherapy have demonstrated not only the safety and good tolerability of therapy, but also positive clinical results.

04.02.2013
Prolonging youth

SIRT3 is a potential source of longevity

Overexpression of the SIRT3 gene rejuvenates hematopoietic stem cells of an aging organism by increasing the efficiency of the antioxidant defense system.

01.02.2013
Other life sciences

Hairpin for Alzheimer's

UCLA researchers have discovered a unique hairpin structure on a certain fragment of the toxic form of beta-amyloid, facilitating its adhesion. It may turn out to be the most relevant target for the creation of drugs against Alzheimer's disease.

01.02.2013
Cellular technologies

Stem cells in heart attack: shining to others, I burn myself

The introduction of specialized cardiac stem cells promotes the restoration of the heart muscle after a heart attack by stimulating the division of preserved cardiomyocytes and attracting the patient's stem cells to the injury zone. At the same time, the transplanted cells die quickly.

31.01.2013
Biomedicine

Smoky lungs are not dangerous during transplantation

Life expectancy after transplantation and indicators of respiratory function in patients who received the lungs of a smoker and those who received the organs of non-smokers practically do not differ.

31.01.2013
Genetic engineering

Insect virus vs. influenza virus

A new type of flu vaccine, in the production of which neither the virus itself nor chicken eggs are used, will soon appear on the American market. The main feature of this vaccine is that when it is created, an insect virus and recombinant DNA are used.

31.01.2013
Other life sciences

Bioinformatics is useful and "useless"

What is useful bioinformatics and what is interesting about "useless" bioinformatics, why one should not be afraid of GMOs and how one can study the cell as a whole, in his lecture on "Gazeta.Ru" says Professor Mikhail Gelfand.

31.01.2013
Biomedicine

Antisense therapy: the first swallow

According to the forecasts of experts of the analytical company Cowen & Co, 2013 may become the year of "antisense technologies" due to the large number of promising experimental drugs at the stage of clinical trials.

31.01.2013
Other life sciences

Skin aging: the main culprit is grabbed by the hand

The decrease in CD98hc protein synthesis observed in old mice confirms its role in tissue preservation, hair follicle cycle and skin healing, which are disrupted with age.

31.01.2013
Prolonging youth

Is hydrogen sulfide an anti–aging agent?

Known due to the characteristic smell of rotten eggs, hydrogen sulfide gas can slow down the aging process through a wide range of mechanisms.

30.01.2013
Biomedicine

Hydrogel-antibiotic

Together with the Institute of Bioengineering and Nanotechnology in Singapore, IBM specialists have created a biocompatible hydrogel. Its antibacterial and antifungal properties are due not to chemical, but exclusively to physical effects.

30.01.2013
Genetic engineering

Gene therapy of rare diseases: another clinical study

The average life expectancy of people with Fabry disease without treatment is no more than 40 years. The first object of clinical trials of gene therapy for this disease was a 34-year-old Canadian.

30.01.2013