Main Article Content
Plants are serving mankind from the first day of his creation and have been a chief source of medicines from thousands of years. According to the latest report of the World Health Organization (WHO), more than eighty percent people are completely relying on the herbal medicines comprised of phytochemicals. These are biologically active, naturally occurring and non-essential nutrients. They are found in fruits (apples, grapes, berries, cherries, citrus fruits peel, apricots, oranges), vegetables (kale, cabbage, cauliflower, carrot, cooked tomato, sweet potato, soybean, bean) green tea, cereals, nuts, whole grains and seeds in a considerable quantity protecting human health from hazards. These compounds are major sources of a large number of medicines consisting of various groups like emetics, antispasmodics, antimicrobials, anti-cancerous etc. In traditional system of medications, large number of plants are considered to have therapeutic characteristics such as anti-pyretic, antioxidant, antibacterial, antidiarrheal, antifungal, anti-inflammatory and antidiabetic. They are extensively used worldwide for the treatment of various kinds of fatal diseases like cancer, neurodegenerative, cardio vascular diseases, type 2 diabetes etc. Various phytochemicals develop the immune system and protect the body from dangerous pathogens. It is believed that there is proper treatment mechanism for each and every disease by the nature in one or another way. Due to this reason, the researchers of the day are stressing to identify the role of these secondary metabolites against various diseases based on phytotherapeutical methods. In this paper, an attempt has been made to highlight the role of several phytochemicals in curing of various fatal diseases.
Keywords: Fatal diseases; Herbs; Medicinal plants; Pathogens; Secondary metabolites