Life Sciences

Found results: 11545

Prolonging youth

Heavy water prolongs life: details

The method that can delay the onset of old age is based on heavy water, which allows us to protect biopolymers that are part of our body from the action of free radicals by replacing parts of hydrogen atoms with deuterium in them.

03.12.2008
Biomedicine

The big role of small RNAs

Small, or non-coding, RNAs do not carry information about the structure of the protein, but are associated with the most important processes in the life of both the cell and the whole organism. Knowledge about the role of small RNAs in the transmission of hereditary information and in the development of cancerous tumors will help to move faster from the first model experiments to applied medical research.

03.12.2008
Other life sciences

Swallow a team of doctors

A unique system of micro robots has been developed that can perform a surgical operation.

03.12.2008
Biomedicine

Telomerase activation: new data on the "youth enzyme"

Mice obtained as a result of crossing two genetically modified lines – resistant to cancer and producing 10 times the normal telomerase level in epithelial tissue, life expectancy was 1.5 times longer than in normal mice. Telomerase synthesis can also be activated with the help of small molecules, but the "elixir of youth" is still far away.

03.12.2008
Prolonging youth

Evolution according to Skulachev: a reasonable and ageless man

Old age is a "relic of the past" inherited by man from animals, V.P. Skulachev believes. The goal of the Ion Skulachev project is to fight aging and prolong life. However, its results can be considered not only from a practical point of view – they provide the basis for new hypotheses related to human evolution.

03.12.2008
Biomedicine

microRNAs tightened the scars on the heart

Antagonists of microRNA-21, which stimulates the growth of fibroblasts, may be a promising treatment for heart attack, heart failure, interstitial fibrosis and other diseases associated with the replacement of damaged cells with connective tissue.

01.12.2008
Bioethics

They are hunting for a sensation. Then they carry the game

At the end of October this year, another scandal broke out in the Ukrainian media: Krivoy Rog forensic experts illegally seized anatomical materials from the deceased! In pursuit of a sensation, some publications wrote that organs were illegally cut out from corpses for implantation, in connection with which a criminal case was initiated.

01.12.2008
Genetics

HIV resistance: one lucky person out of 100

About one percent of the inhabitants of the Old World are immune to the immunodeficiency virus due to a genetic mutation. There are other useful mutations that allow even with HIV infection to postpone the development of the disease for many years.

01.12.2008
Cellular technologies

Gemabank celebrated its 5th anniversary!

Over the years, Gemabank has become an international biotechnology company engaged not only in the storage of stem cells, but also in scientific research in the field of cellular technologies, as well as the development of the latest genetically engineered drugs for the treatment of dangerous diseases.

01.12.2008
New in Gerontology

Sirtuins are a target for old age pills

The ancient and universal mechanism of aging is based on the weakening of the ability of sirtuin enzymes to simultaneously perform both their functions – both to repair DNA damage and to regulate gene activity. Hopefully, the substances that activate the synthesis of sirtuins that are being tested on animals can slow down the aging process in humans as well.

28.11.2008
Biomedicine

Clinical pharmacogenetics: a promising tool for personalized medicine

Currently, the number of publications devoted to clinical pharmacogenetics is growing like a snowball. The use of such technologies in clinical practice is the basis of personalized medicine. However, pharmacogenetic testing is rarely used in real clinical practice.

27.11.2008
Other life sciences

Kinesin – step by step

Scientists from the Massachusetts Institute of Technology have determined how the movement of protein molecules in the cell-motor – transport protein kinesin.

27.11.2008
Genetic engineering

A clock made of genetically modified bacteria

Scientists from the University of California at San Diego were the first in the world to create a genetically programmable biological clock. They count the time in a very unusual way: at certain intervals, the luminosity of fluorescent proteins inside the cells of Escherichia coli bacteria increases significantly.

26.11.2008
Biomedicine

Problems of implementation of pharmacogenomics achievements

Pharmacogenetic research has been developing very intensively over the past 50 years. Nevertheless, the achievements of pharmacogenetics and pharmacogenomics are being introduced into practice extremely slowly. Moreover, this problem is relevant all over the world.

26.11.2008
Biomedicine

What is the biotechnological boom of pharmacy?

In our biotechnological age, the study of the genome has allowed us to gain knowledge in the field of biological causes of various pathologies. Pharmacy is not left out of this biotechnological and genetic boom.

25.11.2008
New in Gerontology

Biological age can be determined by the activity of genes

Calculating biological age is not an easy task. Now it is possible to measure aging by the activity of certain genes, but so far only in roundworms – the favorite of geneticists Caenorhabditis elegans.

21.11.2008
Cellular technologies

Gemabank turns 5 years old!

Gemabank became one of the first institutions in Russia to collect umbilical cord blood at birth, extract stem cells from it and store them at an ultra-low temperature for many years.

21.11.2008