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Longevity Elixir from Easter Island

11.04.2010

A few years ago, a fungus was found in ordinary soil from Easter Island that produces a new antibiotic called rapamycin (from the island's local name, Rapa Nui). Rapamycin is used to fight kidney cancer and rejection of transplanted organs.

Recently, three American laboratories conducted experiments on the introduction of rapamycin into the diet of mice. Mice were taken elderly - 600 days old, which approximately corresponds to 60 years for a person. An antibiotic mixed into food extended the life of rodents by 9-14%. Its mechanism of action is unclear, in any case, it does not prevent aging, but slows it down.

But it is unlikely that this medicine will be used to prolong human life: rapamycin strongly suppresses the immune system.

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Dark Sky Conference 07.03.2003

Last fall, a conference of the International Association for the Protection of Dark Sky took place in the United States. Its members are fighting against excessive lighting of cities. It especially hinders astronomers: even hundreds of kilometers from a big city it is impossible to observe faint stars, and in the city itself the stars are not visible at all.

But astronomers make up less than half of the association's ten thousand members. It includes, for example, lighting engineers who are developing more efficient street lights so as not to light up the sky in vain. Zoologists also protest against bright lighting - it knocks migratory birds off the route and disrupts the biological cycles of wintering ones.

Physicians who spoke at the conference hypothesized that electric lighting is at least partly to blame for the rise in cancer rates. This growth has been observed just since the moment when incandescent light bulbs became widespread. The unnatural extension of daylight hours, according to some doctors, disrupts the hormonal balance, and from here it is not far from the disease.

The resolution of the conference, adopted unanimously, urged everyone, if possible, to do without excessively bright lighting on the street and at home.

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