Treatment of diseases with herbs
Phytotherapy is herbal medicine. Rather, treatment and prevention herbal remedies natural.
Flora our planet has hundreds of thousands willow plants, of which today there are about 250 LTD, and objects of chemical and pharmacological studies were only 2-3 thousand species. It should be noted that some of these studies conducted some time ago, and should be repeated given the current state of science. For now, the researchers are not satisfied with the release
active substances the plant or area of their application. Nowadays you can copy the molecule, more or less materially alter them and to obtain substances with desired properties. Finally, there is the possibility of synthesis ex nihilo (literally “from nothing”) are artificial molecules able to be active in the human body.
If we want to use the diversity of medicinal plants and their therapeutic potential, we have a lot of work. Many species we are still just unknown, for example. plants from the forests of Equatorial Africa, Southeast Asia, South America or the Pacific Islands. The search for new medicinal plants engaged in the expedition of ethnobotanical and ethnopharmacologic. Work begins in the locus of the plants, and it uses different methods. Systematic collection of all occurring plant allows to obtain maksimalnoraschetnoj samples, which are then subjected to analysis. This method is very time-consuming and results are often disappointing. Another direction of search – the systematic study of families of plants, some representatives of which are already known as sources of active substances. But most often the work of ethnobotany begins with a survey of local residents, primarily healers and experts in medicinal plants. Then he picks out noteworthy plants, said the local name of each of them, their usual application and properties attributed to them.
After the samples were accurately identified and collected plants in sufficient quantities, comes the turn of the chemists. They get the extracts from plant material, and then to select the chemical components of plants in pure form or in mixtures. These extracts test in vitro* and in vivo* for in the first place to identify potential toxicity, and then biological activity. The selection is strict: at this stage usually remains one substance out of 10 OOO investigated. Then conduct a thorough testing first on animals, then clinical volunteer. If the results are positive, they can begin the actual pharmaceutical work, i.e. giving substance pharmaceutical form in which it will be sold and used. The last step is getting official permission to take place. In the end, between the collection of plants in the forest and the arrival of a new drug goes on sale, usually 10-15 years.
Study the world’s plant resources are very intensively, however, scientists may simply not have time to discover new medicinal plants because of the decrease in their species diversity. If the current rate of deforestation continues, by 2025 we will lose up to a quarter of the currently existing tropical forests – and with them, apparently, about 10% of all plant species. It is urgent and how can we more fully examine the species composition of these forests and work for their conservation.