Nature helps... of course at first itself by developing measures
that give bacteria, fungi, plants and animals a chance to be
successful in their struggle for life. As a latecomer on Earth,
Homo sapiens was gifted with some droplets of the divine spirit of
recognition and thus became able to observe, to analyse and
recombine skills of other living beings and to use them for his
overwhelming career over the last 10,000 years.
Of course fungi, plants, animals and even bacteria were
primarily used by mankind as food or as lifestyle products such as
beer, but soon it became clear that there was much more potential
hidden in these organisms and that they could be used for other
purposes, too. Extracts of plants and fungi were recognized as
powerful remedies, as medicines, as insecticides or acarizides, as
repellents against parasites or even as weapons, e.g. when
poisonous compounds from frogs or plants were applied to
arrowheads.
Over the last 110 years the pharmaceutical industry has often
simulated nature by analyzing complex organic substances taken from
living organisms and then producing by synthesis absolutely pure
compounds, which mostly consisted of only one single active
substance. These products had the advantage of acting against
precisely one target and thus produced fewer possible side effects
than the complex plant extracts.
However, the more serious side effect was that disease agents
could develop resistances to pure medicinal products much more
easily. Thus after 70 years of excellent prospects for
chemotherapy, some dark clouds appeared and quickly gathered, so
that several therapeutic remedies now no longer work.
Therefore in many countries - especially in those where the pure
chemotherapeutics are too expensive for the poor population - the
cry back to nature is becoming louder and louder. This has led to
an enormous increase of studies that again use natural extracts as
remedies in the fight against diseases.
The present book summarizes examples of promising aspects in a
broad spectrum of applications and shows how extracts derived from
bacteria, marine organisms, plants or even animals may help to
treat infectious diseases, how such organisms may keep away
parasites and pests from the bodies of plants or animals, including
humans, and how they can be used directly to aid in diagnosis,
promote wound healing and even to help catch criminals.
These 15 chapters offer not only basic research on these
different fields, but also show how useful and effective products
can be developed from research."
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