Life Sciences

Found results: 11545

Other life sciences

Just relax!

According to the authors, changes in the activity of the same genes were previously observed in conditions such as post-traumatic stress, but the changes observed during relaxation have an opposite direction and are more pronounced in people who have been practicing relaxation methods for a long time.

09.07.2008
Bioethics

Vaccination – for or against? For!

The paradox of the situation lies in the fact that it is the effectiveness of immunization that leads to the emergence of the anti-vaccination movement. This is due to the fact that with effective vaccination, cases of diseases for the prevention of which it is carried out become increasingly rare, the circulation of pathogens decreases.

09.07.2008
Genetics

Avoid boring conclusions

The Nobel laureate, who turned 80, stressed that he had never lost interest in science. At the same time, to the surprise of many, Watson stated that he practically did not do it all those years while he was in charge of the laboratory.

08.07.2008
Prolonging youth

The New American Dream: Limit Calories to Prolong Life

Anyway, today most American experts agree that everyone should do physical exercises, reduce stress loads and eat less. After all, the results of experiments with calorie restriction and dietary supplements will have to wait for several more decades.

03.07.2008
Genetics

He, she, it: how animals choose their gender

How does temperature affect the sex of the embryo? The balance of sex hormones plays a decisive role here. During the formation of the body, sex hormones are responsible for the development of sex signs. In many organisms, female hormones are derivatives of male hormones. Certain enzymes are responsible for the transformation. It is their activity that may depend on temperature.

03.07.2008
Biomedicine

Lodamine is the first broad–spectrum angiogenesis inhibitor for oral use

Unlike currently available vascular growth inhibitors, such as Avastin, most of which act only on one of the angiogenesis factors, for example, vascular endothelial growth factor (VEGF) and are approved only for the treatment of a small number of specific types of cancer, Lodamine prevents capillary growth under the action of all tested angiogenesis stimulants.

03.07.2008
Other life sciences

Kasparinsky Laboratory

The DVD series "Modern course of lectures on classical Physiology" consists of 12 discs with lectures by famous physiologists of Russia, the highest authorities in their field, who were invited specially for filming from eight research institutes, universities and medical academies from four cities of Russia.

02.07.2008
Cellular technologies

Stem cells: a review of the latest news

Stem cells that ensure the renewal of cardiac tissues will someday be able to be used to repair the heart in myocardial infarction and other diseases. And the creation of methods for converting embryonic or other stem cells into neurons would be the beginning of a genuine revolution in the fight against strokes, neurodegenerative diseases and traumatic injuries of the central nervous system.

02.07.2008
Nanotechnology

Nanotechnology Boom: Speculation, exaggeration and hysteria

The fact that many technologies or research are now called nanotechnology, which in the strict sense of the word cannot be attributed to nanotechnology, should not always be perceived negatively. When the "fashion" for nanotechnology passes, it turns out that the "nano" prefix can be discarded without prejudice to the development, but at the same time, the funding that it can receive thanks to this prefix will allow them to develop.

01.07.2008
Other life sciences

Is group selection coming back?

Where did the author of the "Selfish Gene" and the father of sociobiology disagree, both Darwinists, educators and anti-prejudice fighters? The apple of contention turned out to be group selection.

27.06.2008
Bioethics

Low-quality life, low-quality death

The level of quality of life of Russians and the level of medical services provided currently leave much to be desired.

25.06.2008
Bioethics

Should I keep my medical card online?

Patients already have official rights to possess copies of the results of medical examinations. However, in practice, these rights are often difficult to implement, because it is difficult to obtain paper copies of the results of examinations, appointments and epicrisis, and many doctors still do not use electronic forms to enter medical information, or do not want or are unable to provide patients with information in electronic form.

25.06.2008
Bioethics

Informed consent (2)

Informed consent is a process, an active dialogue between a doctor and a patient (a healthy volunteer), which begins even before the start of the study and ends significantly later than its completion.

23.06.2008
Other life sciences

The brain has become wiser from a good electrical contact

The exchange of impulses (that is, the management of all the activities of living organisms) is carried out through synapses – biochemical complexes responsible mainly for the contact between the axon and the dendrite. Scientists believe that it was the complication of these contacts that contributed to the emergence of more advanced behaviors in mammals, and subsequently in humans.

20.06.2008
Genetics

"Genes of homosexuality" – a secret weapon in the struggle of the sexes

Scientists have modeled the spread of potential homosexuality genes. The authors believe that these same genes are associated with increased fertility in women and represent a way to control and maintain balance in the entire population. Roughly speaking, the more gays there are on the planet, the more fertile women are, and vice versa.

20.06.2008
New in Gerontology

Where can I get a pill for old age?

At the VIII International Symposium "Biological Mechanisms of Aging", scientists analyzed the results of research on the mechanisms of aging of various biological systems, discussed new theories in this field and the features of new experimental approaches, as well as social aspects of gerontology.

19.06.2008
New in Gerontology

Psychologists believe that in old age a person really becomes wiser

If the accumulated information is knowledge, and wisdom is the ability to organize this knowledge and use it, then of course old age is associated with wisdom. But over the years, wisdom does not always come: it is inherent only in the aging brain, not pathologically, due to diseases, but naturally.

17.06.2008
Bioethics

"God's Gene"

The idea of the "God gene" was accepted by theologians with hostility, although this discovery has nothing to do with the question "Is there a God?". It was only about the fact that people are religious for quite physiological reasons related to their hereditary information.

16.06.2008