Life Sciences

Found results: 11545

Biomedicine

Artificial bone marrow

For the first time in the world, a working model of human red bone marrow has been manufactured at the University of Michigan. Artificial bone marrow is capable of producing both various types of white blood cells and new hematopoietic cells. Perhaps red blood cells and red blood cells appear there.

24.12.2008
Genetics

Genes of cute bullies

The feelings that a person evokes in others depend on his genes – at least, on one of the genes involved in the work of serotonin.

24.12.2008
Cellular technologies

Stem selection

Having "reprogrammed" a skin cell into a stem cell, scientists insisted that medicines for all diseases would be selected individually. Expectations were met: from the skin of a baby suffering from a rare fatal disease, it was possible to create a cell line that allowed us to find the right drugs. However, the doctors did not have time to help the child.

22.12.2008
Nanotechnology

Nanoparticles for medicine

Attaching magnetic nanoparticles to antibodies instead of fluorescent dye molecules increases the sensitivity of detecting marker proteins by about a hundred times. And ultra-fine polishing with the help of liquid suspensions of quartz nanoparticles, which are used for the same purposes in the semiconductor industry, makes the enamel so "slippery" that bacteria cease to stay on it.

22.12.2008
Biomedicine

How a blood clot grows

Russian scientists from the Hematology Research Center of the Russian Academy of Medical Sciences have learned to measure the growth rate of a blood clot, and now anyone can calculate the risk of their own heart attack.

22.12.2008
Other life sciences

Discoveries of the Year: from stem cells to genome decoding

The top ten scientific breakthroughs of the year according to the journal Science were led by the method of creating artificially induced pluripotent stem cells. Completing the list is the acceleration and cheapening of the gene sequencing process, thanks to which, in particular, 80% of the mammoth gene was deciphered in the outgoing year and preliminary results of decoding the Neanderthal genome were obtained.

19.12.2008
Genetics

Genetic aspects of skin diseases

Hereditary skin diseases have evolved in recent years from a secondary topic to an important focus of basic and clinical research. There is no doubt that genetics has an important role in solving the pathogenesis of many common skin diseases with a family predisposition, as well as in the development of new ways to treat these diseases.

18.12.2008
Genetics

Fingerprinting of love

Genetic fingerprinting is used both in criminology and medicine, but the greatest flow of examinations for biological kinship still concerns purely domestic problems related to inheritance, alimony and other material benefits.

18.12.2008
Bioethics

Mercy Terminal

In St. Petersburg, the tradition of the "church circle" is being revived, when money for godly deeds is collected from the world by a thread. Only the mug has now been replaced by payment terminals.

18.12.2008
Nanotechnology

Careful, nanoparticles!

The most frightening example: sunscreen creams contain titanium oxide nanoparticles that easily penetrate into the skin and are found in the epidermis within 8 hours after applying the cream. Since the beginning of the mass use of such creams, the incidence of skin cancer in the United States has increased by 90%!

18.12.2008
New in Gerontology

Menopause: another possible reason

One of the most unpleasant and incomprehensible events in a woman's life — menopause — has received a new explanation. Scientists blame the stopping of the "birthing mechanism" of daughters-in-law who fought for power in a primitive family.

17.12.2008
Biomedicine

Anti-cancer filter implant

Scientists from the University of Rochester have built and tested a prototype of an unusual blood filter, which, being built into the human bloodstream, cleanses the body of cancer cells, reducing the likelihood of metastasis.

17.12.2008
Other life sciences

See thoughts: details

The fantastic experience of Japanese scientists opens the way to recognition in the human brain and those images that he has never seen in reality – dreams or imaginary worlds. Just imagine the work of an artist or designer who just sits in an armchair and, closing his eyes, comes up with images that immediately appear on the computer screen.

16.12.2008
Bioethics

The right to die

The debate about the ethics of broadcasting the film "The Right to Die?" documenting the suicide of terminally ill Professor Craig Evert in the Swiss Dignitas clinic intended for this purpose began even before the broadcast. Now they are continuing with renewed vigor.

12.12.2008
Biomedicine

Cancer, antioxidants and free radicals

Two oncology news: bad and good. Doctors again found no evidence that taking antioxidant vitamins helps prevent cancer. But another Achilles heel was found in tumors – an enzyme that enhances the synthesis of free radicals in cancer cells and simultaneously weakens their antioxidant mechanisms.

11.12.2008
Biomedicine

Autoimmune diseases and testosterone

Testosterone blocks the synthesis of molecules that stimulate the immune response. An intermediate agent of this mechanism can become a good target for the development of drugs against chronic inflammation, as well as asthma and other autoimmune diseases.

10.12.2008
Prolonging youth

Defeat aging

The invention of new medicines for senile diseases is a real tool for prolonging life. They are already being invented, but not everything has reached the clinic yet. These are medicines for diseases that are directly related to aging. Actually, these diseases are aging, the result of aging. In 10-20 years, science will achieve that a person will live 120 years.

09.12.2008
Other life sciences

Diabetes comes at night

Three research groups have found a genetic link between the development of diabetes, obesity and circadian rhythm disorders.

08.12.2008
Biomedicine

Biomedical projects in RUSNANO

Targeted delivery of the active substance directly to the focus of the disease will greatly increase the effectiveness of the drug.

04.12.2008