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. Vorobeva 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.
Nadejda Markina | alfa
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