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Genetics win death

Kirievsky Andrey

[28.11.2000] The death is a part of life and to die before time anybody though drugs, alcohol and some mental diseases "help" to reconsider this point of view radically does not want. Scientists consider, that in our organism there are certain internal clocks which measure, the person how many will live. At many they stop already through eighty years after birth, however, there are individuals for whom they continue to work more century. For today the champion among long-livers is Japanese Shigehio Amaze, to which managed to live almost hundred twenty one year.

The death comes, as a rule, because the growing old organism is not so capable to carry out "duties", and cases when the person "is "brought" with heart or a brain are frequent. Today's technologies allow "to struggle" with old age, but genes nevertheless " take the " and from "attributes" of the former youth a bit later there are only photos. Some scientists, for example, offer "to pump up" themselves a hormone of growth, somatotropinom which repulses old age. To tell the truth, annually for such "treatment" of old age to spend it is necessary about ten thousand dollars, and at all each American pocket "will pull" such sum.

Meanwhile the greatest success, it is especial among movie stars, surgical operations use. Doctors "tighten" a leather(skin) of the person, smoothing thus wrinkles, or do(make) laser polishing which removes a layer of old cells(cages) and at the same time stimulates formation(education) new. In both cases the person really looks younger, but in some years procedure should be repeated again. Besides similar operations help to get rid only of "symptoms" of old age, instead of from it(her).

Scientists count more perspective method of struggle against old age change of bodies which will allow essentially " to update a wardrobe " bodies of the person and to replace, for example, the fallen ill heart, a liver and kidneys on healthy. Transplantation of donor bodies, certainly, helps to rescue lifes of people, however cost of operation reaches(achieves) tens thousand dollars. Klonirovanie, probably, also will solve a problem of dearness of a material for change but to replace all bodies and fabrics of an organism all the same it will be not possible, that is why life to prolong it is possible, but the death is inevitable.

Genetics believe, that it is possible not only to achieve substantial growth of life expectancy but also to become immortal, that while it was possible only to some heroes of fairy tales and films. Ageing process long, also is connected it(he) by that cells(cages) cease to be made multiple copies and gradually die. However at progerii, rare disease, children literally for some years "turn" to old men, and, studying this phenomenon, scientists could find out, why cell fission stops. Researchers have opened, that ageing supervises "slice" DNK named telemerom which "protects" her(it). However each time when the cell(cage) shares, becomes shorter than telemeasures and, eventually, the length of it(him) reaches(achieves) critical figure at which it(he) any more "does not protect" DNK and at this moment the cell(cage) perishes.

At children of patients progeriej length the telemeasure is so small, that it(him) "does not suffice" for a long time and the cell(cage) dies very quickly, as accelerates process of ageing. In experiments scientists could change a course of process of ageing at cells(cages) by introduction in DNK the genes responsible for formation(education) of enzyme telomerazy which the telemeasure plays the important role in synthesis. Having changed structure DNK of the fruit fly, researchers have achieved increase of duration of its(her) life twice. However telomeraza is only in sperm, jajtsekletkah and at a fruit, the nature has deprived an adult organism this enzyme.

It would seem to decide(solve) a problem of eternal life simply: only it is necessary to enter into each cell(cage) the genes responsible for synthesis of enzyme of "youth", however while scientists do not know, how it to carry out. Even if it and also will be possible to them, it will result in uncontrollable duplication of cells(cages), and it becomes inevitable the reason of formation(education) of tumours. Probably, scientists will find the decision of this problem but then to it(her) on change another will come: if nobody will die, there will be an overpopulation of the Earth, and already now the considerable part of mankind lives not in the best conditions. However, maybe, by then people will lodge and on other planets.

Immortality, similar, still long will exist only in our imagination and to prolong stay in this world already quite on forces to everyone. Doctors correctly advise to eat, to conduct a healthy way of life to accept vitamins, and even hormones. Many consider, that it really helps, however it is a lot of and those people which "manage" to live long and happy life, not observing the above mentioned rules. In opinion of a part of experts the only thing, that it is really possible to count " a fountain of youth " these are regular employment(occupations) physical exercises.

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