Can Natural Products be Used for Protection of the Liver?
نویسنده
چکیده
Implication for health policy/practice/research/medical education: It helps to improve natural products for liver protection. which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Industrial and technological advancements, particularly in the last century have produced astronomical changes in the environmental conditions that directly affect our health. The liver is the major site for detoxification of the harmful chemicals and some drugs that are taken regularly (e.g. acetaminophen) or in high doses. Prolonged exposure to such agents can result in development of various liver diseases worldwide. Many drugs commonly used for treatment of various diseases and metabolized or activated by the liver by first pass effects. These not only do not offer protection, but also are agents that impose a great burden of the liver and expose it to damaging effects by their toxic metabolites. Furthermore, despite the great advances in modern medicine, there is no effective drug available that stimulates liver function , protect it from damage or help to regenerate he-patic cells (1). There is, therefore, urgent need for effective drugs to replace those in current use or administered as supplements to protect the liver for the insults of these chemicals we use for treatment of an ailment we suffer from. As an alternative, the plant kingdom is undoubtedly valuable as a source of new medicinal agents. Historically may medicinal drugs have their origin from natural sources and plant products. Penicillin and many other newer antibacterial agents, currently in use in fighting bacterial infections, and the vinca alkaloids (vincristine and vinblastine), used in treatment of cancer, are good examples of such wealth that natural products can offer. It would be naive to assume that every product traditionally administered for many years before and has a natural origin is safe and effective in treatment of a given disease. Authorities in different countries, including WHO, and rightly so, require that safety issues to be address first in the preliminary approval of these products before their use is granted. However, 80% of the world population, due to economic restrains and unavailability of new medicinal products, rely on the use of traditional medicine, which is predominantly based on plant material (2). Therefore, it is the duty of researchers worldwide to provide scientific evidence of the safety and effectiveness before they are brought to wide scale use in treatment of any disease in human or animal. In …
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