Natural remedies herbal therapy

In recent years, Americans and others have tended to rely less and less on modern, scientific medical practices and remedies for treating many medical conditions. Popular magazines, television shows, and newspapers routinely include stories about alternative medical treatments, aromatherapy, herbal and natural remedies, magnet therapy, touch therapy, psychic healing, acupuncture, and homeopathy. The debate over the efficacy of such treatments continues. It is safe to say, however, that most, if not all, of these treatment methods have not been subjected to the same rigorous scientific standards as most modern medical practices and treatments. 

Because of the interest in and popularity of alternative and complementary medicines and healing practices, the scientific method is being applied to a wide variety of these remedies. Different types of studies seek to establish if and how individual, alternative medicines exert their effect. Clinical trials are being conducted to compare a specific alternative medicines with the accepted conventional medical standard of care for a specific condition thus, for example, an herbal extract may be compared with a pharmaceutical-grade drug to demonstrate unequivocally the safety and effectiveness of a product or practice. However, complementary and alternative medicine has only recently been deemed worthy of scientific scrutiny (for decades many natural remedies and practices were dismissed outright as being obviously inferior to Western science-based medicine), and many alternative therapies have not yet been... 

In the United States, the use of products, including botanicals, thought to fall within the realm of complementary and alternative medicine is very common. It is difficult to obtain reliable estimates of use or to compare many of the current publications in this area because of diverse definitions for categorizing these products (e.g., dietary supplement, food supplement, herbal medicine, natural remedy, traditional medicine, etc.) in both the United States and elsewhere. A recent report on the use of complementary and alternative medicine by U.S. adults in 2002 indicated that approximately 19% of the population used nonvitamin, nonmineral, and natural products, 19% used folk medicine, and 3% used megavitamin therapy in the past 12 months (1). 

Complementary alternative medicine herbal remedies pyrrolizidine alkaloids veno-occlusive disease of the liver natural treatments or therapy... 

In many developing countries of the world, there is still a major reliance on crude drug preparation of plants used in traditional medicines for their primary health care. Pharmacognosists employed in the different institutions are aware of the changing trends of herbal medications and a number of useful texts on the analysis, uses, and potential toxicities of herbal remedies have appeared recently, which serves as useful guides in pharmacy practice. The history of medicine includes many ludicrous therapies. Nevertheless, ancient wisdom has been the basis of modem medicine and will remain as one important source of future medicine and therapeutics. The future of natural products drug discovery will be more holistic, personahzed and involve the wise use of ancient and modem therapeutic skills in a complementary manner so that maximum benefits can be accmed to the patients and the community. 

It is a curious assumption, and illogical that a complementary therapy could have sufficient pharmacological activity to improve health (however imprecisely that may be defined), and yet these properties are automatically insufficient to cause harm. Part of the problem is that adverse reactions to natural therapies are not reported in the same way as for orthodox drugs (Barnes et al., 1998). Reporting bias also tends toward the association of adverse effects with the condition being treated rather than from the harmless over-the-counter or herbal remedy that has been administered. The only complementary therapies that are safe in overdose are those that are homeopathic, with even these carrying the clinical hazard of under-treatment. 

Part of the problem is that adverse reactions to natural therapies are not reported in the same way as for orthodox drugs (Barnes et al 1998). Reporting bias also tends towards the association of adverse effects with the condition being treated, rather than from the harmless over-the-counter or herbal remedy that has been administered. 

In this paragraph we have shown the most important smdies on isolated flavonoids as potential antimicrobial agents published in the literature in the last 5 years. The very high increase of the number of these smdies with respect of the previous periods indicates the urgent need to discover and develop alternative therapies to current antibiotics. Flavonoids are natural products with different scaffold from known antibiotics that would have less tendency to generate resistance. Hence, to isolate and identify new active flavonoids is very important not only to understand the antimi-crobic properties of herbal remedies, but also to identify new molecules as lead to obtain new and more potent antibiotics. 

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