Life Sciences

Found results: 11545

Biomedicine

A pill for blood pressure... and senile senility

The primary results of a clinical study of the drug guanfacine, originally intended for the treatment of hypertension, showed that no reduces the symptoms of senile disorders of short-term memory.

29.07.2011
Genetic engineering

The IL-15Ra gene interferes with a bad runner

Mice deprived of the IL-15Ra gene can run six times longer than their "normal" relatives. Certain variants of this gene are very common in athletes – runners and long-distance cyclists.

26.07.2011
New in Gerontology

Another reason for senile dementia

With senile dementia, a person pays for the years lived after the loss of reproductive abilities. In monkeys, fertility persists until the end of life, and their brains degrade much less in old age than in humans.

26.07.2011
Bioethics

Rules for Dr. Moreau's heirs

The authors of the report "Animals containing human material" believe that the area of special attention should be attempts to give animals the traits that make up human essence.

25.07.2011
Biomedicine

A vaccine against heroin addiction has been created

In response to the introduction of the "dynamic vaccine", antibodies against heroin and its derivatives began to be synthesized in the body. As a result, four out of seven experimental drug addicts voluntarily and without additional treatment refused heroin.

22.07.2011
Other life sciences

If you want to be a father...

Half of the men have one defective copy of the DEF126 gene, a quarter have both, and their sperm cannot reach the egg. With all the consequences. And it's better not to read about what smoking, even passive smoking, does to sperm…

21.07.2011
Genetics

Moore 's Genome

The personal genome of Gordon Moore, one of the founders of Intel and the author of the famous Moore's law on the rate of increase in the number of transistors on a chip, was sequenced using thousands of chips with 1.2 million tiny holes on each.

21.07.2011
Biomedicine

Are you afraid of Alzheimer's? Chew grape seeds!

After treatment of mice with an Alzheimer's disease model with polyphenols isolated from grape seeds, the content of the beta-amyloid peptide oligomer in their brains decreased significantly.

18.07.2011
Genetic engineering

Editing genomes

The technology of replacing some codons in the genome with others in the future will allow us to create organisms with a genetic code that differs from the existing one and completely new properties.

18.07.2011
Cellular technologies

Mouse-mouse, here's a tooth for you!

Researchers at the University of Tokyo managed to grow full-fledged teeth with dental bones and connective fibers from mouse stem cells and successfully transplant them into the jaws of animals.

15.07.2011
Cellular technologies

Transcriptome-induced phenotype remodeling

Such a difficult name was given to the method of direct reprogramming of cells without the creation of induced pluripotent stem cells and their transformation into target cells and without the use of various growth factors.

14.07.2011
Cellular technologies

If only the human liver…

With the help of capsules with human liver tissue implanted in laboratory mice, it will be possible to study the effects of new drugs on the liver, which was previously impossible due to the different reactions of mice and humans to chemical compounds.

14.07.2011
Nanotechnology

Nanotowars with four letters

According to the decree of the Government of the Russian Federation, nanoindustry goods and services are divided into four categories: "A", "B", "C" and "D".

14.07.2011
New in Gerontology

Cannabinoid receptors protect the brain from aging

The absence of type 1 cannabinoid receptors (CB1) is associated with the rapid development of symptoms of brain degeneration similar to those observed in patients with senile dementia.

14.07.2011
Cellular technologies

IPSK: problems of transition age

Induced pluripotent stem cells are one of the newest areas of biology that is rapidly gaining momentum. Like any other new science, it has now entered a difficult "teenage" period.

11.07.2011