Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Kefir Protects Against Mutations

12.12.2002


Scientists all over the world hunt for anti-mutagens, substances protecting against mutations. Where they can find them? It was suggested and later proved that most anti-mutagens are located in those organs and biological liquids, which are connected with the process of reproduction. The latter is the key point in the life cycle, in which genome disorders should be minimal. Anti-mutagens were found in seeds, spores, eggs, and sperm. It was also established that anti-mutagens are formed in certain bacteria. Then, microbiologists have become curious about a possibility of obtaining and using bacterial mutagens in medicine.



Among wonderful bacteria producing anti-mutagens, there are bifidobacteria and lactic-acid bacteria that are very beneficial for health. They can be already called "domestic" because of their wide application in producing various milk, meat, and special fermented foodstuffs for people and animals. Bifidobacteria are the main component of a natural microflora of the intestine and produce lactic, acetic, and butyric acids that kill pathogenic and putrefactive bacteria. The same acids are produced by lactic bacteria inhabiting fermented milk.

Experiments conducted by L.I. Vorob’eva and S.K. Abilev have shown that chemical mutagens kept in fermented milk lose their dangerous properties. Lactic-acid bacteria attack mutagens in different ways. They produce proteins-enzymes and lactic, butyric, and acetic acids, which suppress the activity of mutagens. Some lactic-acid bacteria are capable of forming chemical bounds with mutagens. Sometimes, bacterial cells act as anti-oxidants and remove free radicals.


On the basis of data obtained, the authors conclude that lactic-acid bacteria and bifidobacteria neutralize mutagens, which are dangerous for the genome, within the alimentary canal. It should be mentioned that mutagens may often act as carcinogens, i.e., cause cancer. Therefore, the bacteria and their metabolites protect not only against mutations, but also against cancer. The scientists suggest that they can also neutralize carcinogenic agents and hinder the growth of a newly formed tumour. This is proven by the experiments on rats as well as by medical observations: people who take fermented milk products are less subjected to intestine cancer.

Another valuable group of microorganisms is propionic bacteria, which are used in the production of vitamin B12, bakery, and in pharmaceutics. They live in cheese and milk, and some species - on the skin. The scientists have established that these also act against mutagens.

Protective properties are also found in bacterium enterococcus that inhabits the intestine. It produces proteins that make DNA less damageable.

Fortunately, the anti-mutagenic properties of bacteria are universal. So, using bacteria, people can obtain anti-mutagenic and anti-carcinogenic agents, which may become a basis for creating new food supplements and drugs. And including kefir, yogurt, and other fermented milk products in daily menu is very advisable for everyone.

Nadejda Markina | alfa
Further information:
http://www.informnauka.ru/eng/2002/2002-12-11-02_268_e.htm

More articles from Health and Medicine:

nachricht Cystic fibrosis alters the structure of mucus in airways
29.06.2017 | University of Iowa Health Care

nachricht Mice provide insight into genetics of autism spectrum disorders
28.06.2017 | University of California - Davis

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Making Waves

Computer scientists use wave packet theory to develop realistic, detailed water wave simulations in real time. Their results will be presented at this year’s SIGGRAPH conference.

Think about the last time you were at a lake, river, or the ocean. Remember the ripples of the water, the waves crashing against the rocks, the wake following...

Im Focus: Can we see monkeys from space? Emerging technologies to map biodiversity

An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.

Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...

Im Focus: Climate satellite: Tracking methane with robust laser technology

Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.

Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...

Im Focus: How protons move through a fuel cell

Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.

As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...

Im Focus: A unique data centre for cosmological simulations

Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.

With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Plants are networkers

19.06.2017 | Event News

Digital Survival Training for Executives

13.06.2017 | Event News

Global Learning Council Summit 2017

13.06.2017 | Event News

 
Latest News

Nanostructures taste the rainbow

29.06.2017 | Physics and Astronomy

New technique unveils 'matrix' inside tissues and tumors

29.06.2017 | Life Sciences

Cystic fibrosis alters the structure of mucus in airways

29.06.2017 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>