Articles

Found results: 16329

Genetics

Cleaning ancient genomes

The creation of a system for separating contamination from DNA will allow geneticists to conduct a more accurate analysis of gene samples of ancient people and animals, which means that it will bring them one step closer to deciphering the secrets embedded in the DNA spiral.

29.01.2014
Cellular technologies

Pluripotent stem cells repair the retina

Scientists have developed a method for obtaining induced pluripotent stem cells from human umbilical cord blood cells that can repair damage to the retinal vessels of mice.

29.01.2014
Other life sciences

Bad good cholesterol

The main protein of "good" lipoproteins in atherosclerosis is oxidized and increases the disease, provoking inflammation in the walls of blood vessels.

28.01.2014
Your health

Protect your brain from colds

It is not necessary that the infection directly affects the brain: it makes itself felt in a variety of organs. In younger people, such disorders can quickly disappear, and in older people, inflammation can become a trigger for dementia.

28.01.2014
Bioethics

Saving on the dying

Doctors directly dissuade elderly cancer patients from expensive therapy paid for by the state. If treatment is still prescribed, the patient is prescribed the cheapest and already outdated drugs.

28.01.2014
Genetic engineering

The Fool 's Gene

For about 10,000 years, humanity has been eating genetically modified foods. For several hundred years, such products can make up to 100% of the diet. A few years ago, humanity began to understand exactly what it modifies in genes.

28.01.2014
Your health

Our service is both dangerous and difficult…

Although a brick will not fall on an office worker, as it can happen on a construction site, it will not burn with splashes of molten metal, as in a metallurgical workshop, etc., office work also carries quite real health hazards.

28.01.2014
Other life sciences

Ovarian cancer: a new biomarker

The substance RNU2-1f (microfragment of the RNA molecule) is a valuable diagnostic marker of the growth of malignant epithelial ovarian tumor.

27.01.2014
Various

Peek into a living cage

The attachment to a conventional phase contrast microscope allows you to obtain high-quality three-dimensional images of processes occurring inside living cells, without fluorescent dyes or other chemical compounds.

27.01.2014
Other life sciences

Monitoring of the concentration of drugs in the blood on-line

A miniature device in the near future will allow doctors to monitor the concentration of drugs in the blood in real time and prescribe their dosage not at random, but based on the biological characteristics of the patient's body.

24.01.2014
Genetics

The oldest tumor

Cancer cells of transmissible sarcoma of dogs have been transmitted among animals for 11 thousand years, that is, they represent the oldest cell line on Earth.

24.01.2014
Your health

Inactivity disrupts the work of the vasomotor center

A sedentary lifestyle makes the neurons of the brain responsible for the work of blood vessels too sensitive to any stimuli. Because of this, the regulation of blood pressure may be disrupted, which, in turn, increases the risk of cardiovascular diseases.

24.01.2014
Other life sciences

Sex differences of hematopoietic stem cells

Female hematopoietic cells divide noticeably more actively than male ones, and much more often turn into "blanks" of red blood cells. Also, cells react differently to some signaling molecules, including estrogen, the "female" hormone.

24.01.2014
Nanotechnology

Antibacterial nanobombs

Upon contact with bacteria suspended in the air nanodrops of water enclosed in them oxygen radicals destroy the membranes of bacterial cells, and bacteria die.

23.01.2014
Genetic engineering

Fish oil from a bioreactor

Researchers from Germany, who are searching for a reliable and environmentally safe source of medically important polyunsaturated fatty acids, have demonstrated that these acids can be obtained with the help of soil bacteria.

23.01.2014
New in Gerontology

Is age–related mental retardation a myth?

The "throughput" of the brain does not decrease with age. Older people need more time to find an answer because their brains have to search for it in huge repositories of information accumulated over the years.

23.01.2014
Prolonging youth

Don't let your brain dry up

High blood levels of omega-3 fatty acids found in fish oil contribute to the preservation of brain mass and slows down the aging process in old age.

23.01.2014