Human culture has always depended heavily on medicinal plants. Medicinal plants have always been at the forefront of the culture of almost every civilization as a source of medicine. It is believed that traditional medicines contain medicinal plants in abundance, which are also the source of many modern medicines. For thousands of years, medicinal plants have been used to treat diseases, preserve food, add flavor, and prevent disease epidemics. The biological properties of plant species used throughout the world are generally the result of secondary metabolites produced by the plants. Products obtained from plants control the growth of microorganisms in various conditions. We have given a general overview of medicinal plants in this review.
Introduction
For centuries, humans have depended on nature for their basic needs, such as medicines, shelter, food, fragrances, clothing, taste, fertilizers and means of transportation. In developing countries, where herbal medicine use has a long history, medicinal plants play an important role in the healthcare system for a significant portion of the world's population. There is an increase in the cultivation, recognition and financial support of medicinal plants in both developed and developing countries.
Plants have formed the basis of specific traditional medical systems that have been practiced for thousands of years. Plants still exist today to provide new medicines for humans. Medicinal plant treatments are based on hundreds to thousands of years of experimental findings, and some of the beneficial properties attributed to plants have been disproved. The earliest cuneiform carvings were found on clay tablets in Mesopotamia around 2600 BC; Oils of Commiphora species (myrrh), Cedrus species (cedar), Glycyrrhiza glabra (licorice), Papaver somniferum (poppy seed), and Cupressus sempervirens (cypress) are among the ingredients that were used. These oils are still used today to treat a variety of diseases, from cold and cough to inflammation and parasitic infections.
Traditional medicine is frequently practiced in China, India, Japan, Pakistan, Sri Lanka and Thailand. China claims that traditional tribal medicines account for about 40% of total medicinal consumption. The legumes Cesalpinaceae, Fabaceae and Mimosaceae are used in herbal remedies in Thailand. It is estimated that the sale of herbal medicines generated more than US$2.5 billion by the mid-1990s. In Japan, demand for herbal preparations is higher than for conventional pharmaceutical products.
Plants contribute significantly to a wide variety of industries, including fine chemicals, cosmetics, pharmaceuticals, industrial raw materials, etc. In the process of discovery of new medicines, medicinal plants play an important role. Many deadly diseases like cancer and viral attacks have been defeated only by medicinal plants. HIV/AIDS, among others, led to the introduction of 100 new plant-based drugs to the US drug market between 1950 and 1970, including vincristine, raceminamine, vinblastine, deseridine, and reserpine, all of which come from different plants. From 1971 to 1990, new drugs such as artemisinin, zuggulsterone, ginkgolides, lectins, e-guggulsterone, teniposide, ectoposide, planitol, and nabilone were introduced worldwide. Irinotecan, topotecan, paclitaxel, gomyshin and others were among the 2% of drugs introduced between 1991 and 1995. In 1953, the discovery of serpentine from the Indian plant Rauwolfia serpentine root marked a breakthrough in the treatment of hypertension and blood pressure reduction. Catharanthus roseus was the source of vinblastine which is used to treat childhood leukemia, Hodgkin's choriocarcinoma, non-Hodgkin's lymphoma, and testicular and neck cancer.
Nothapodytes pneumoniae (Mappia foetida), a native Indian tree, is often used in Japan to treat cervical cancer. Plants are still the best hope for safe medicines in the future and are essential to health care today.
Although we now have many modern medicines available, it is still very important to discover and develop new therapeutic agents. It is estimated that only one third of all human diseases can be treated effectively. As a result, the fight against diseases must continue. Due to the synergistic effect of compound combinations and the absence of significant side effects, traditional plant medicines hold an important place in the modern pharmaceutical industry. Most of the important medicines of the last 50 years have been isolated from or derived from plants, which have revolutionized modern medicine. These chemical components have the ability to treat diseases in both animals and plants. The World Health Organization (WHO) supports and encourages the inclusion of herbal medicines in national health care programs because they can be purchased at an affordable price for the average person, are long tried, and are comparable to modern synthetic medicines. Is considered safer.
As a result, many medicinally valuable drugs have been discovered through the research of medicinal or biologically active agents obtained by examining natural sources such as plant extracts, which play an important role in the treatment of human diseases.
Recently, phytochemical and medicinal research has produced effective treatments for some diseases that the synthetic pharmaceutical industry could not afford. The most important of these is research on Artemisia annua, Catharanthus roseus and Taxus spp. Bacopa spp and Lantana camara etc. These plants were once considered useless or poisonous, but were later discovered to contain molecules with high medicinal values, making them important medicinal herbs. Bioassay-guided fractionation of medicinal plants and sophisticated bioassays used by traditional healers are commonly used in modern discoveries of bioactive molecules. As a result, many new compounds with therapeutic value have been isolated. The dedicated efforts of researchers have resulted in the development of many powerful drugs, therapeutic leads and many new medicinally active components from herbal medicines.
In 1826, the industrial production of morphine by E. Merck in Germany marks the beginning of the commercialization of drugs derived from plants. In 1991, natural products or their derivatives accounted for almost half of the best-selling drugs.
Distribution of medicinal plants
Distribution analysis of medicinal plants shows that they are distributed in a variety of landscape elements and habitats. The tropical forests of the Eastern and Western Ghats, the Chota Nagpur Plateau, the Aravalis, the Vindhyas and the Himalayas contain about 70% of India's medicinal plants. The Kashmir Himalayan region lies in the northwestern folds of the Himalayas, which has recently been designated a global biodiversity hotspot. It is part of the main Himalayan range, but it is geologically older. The floral wealth of this region includes a good number of medicinal plants. 111 medicinal plants of Kashmir and Ladakh have been listed by Kaul. Furthermore, he discusses the medicinal properties of 291 species of medicinal plants from these regions in his book. Dioscorea deltoidea, Rheum emodi, Arnebia benthamii, Inula racemosa, Datura stramonium, Aconitum heterophyllum, and Artemisia spp. These are among the most important medicinal plants found in the Kashmir Himalayas. Juniperus macropoda, Hypercum perforatum, Hyoscyamus niger, Sassuria spp., Podophyllum hexandram, and other Picrorhiza species are expanding rapidly in places like Yusmarg, Pirpanjal, Sonamarg, Gurez, Lolab Valley, Gulmarg, Khilanmarg, Pahalgam and Tilail Valley. Apart from this, a variety of aromatic and medicinal plant species are grown in different altitude areas of Kashmir Valley. Caraway (Carum cervi), saffron (Crocus sativus), cumin (Bunnium persicum), garlic (Allium sativa), coriander (Coriandrum sativum), and mint (Mentha spp.) are important aromatic plant species. Trigonella foenum-graecum and fennel (Foeniculum vulgare). Standardized plant extracts use many of these plants.
Future Prospects of Medicinal Plants
There are approximately half a million plants in the world, and most of them have not yet been investigated for their potential medical uses. Their hidden potential for medical uses could have a significant impact on current and future treatments. In the development of human culture, medicinal plants have played an important role in religions, ceremonies, and other fields. For example, aspirin is one of many modern drugs that are indirectly made from medicinal plants. Garlic is an example of a food crop that has medicinal properties. Understanding the toxicity of plants and protecting humans and animals from natural poisons are both improved by the study of medicinal plants. The production of secondary metabolites by plants is what gives plants their medicinal properties. In view of this, the amount of interest in natural product chemistry research has increased. The development of new and sensitive methods to detect biologically active natural products, improved techniques to isolate, purify, and structurally characterize these active components and progress in solving the supply demand of complex natural products all There are possible reasons for this interest. Other factors include the utility of novel bioactive natural compounds as biochemical probes, the remarkable diversity of chemical structures and biological activities of naturally occurring secondary metabolites, and the therapeutic needs. The World Health Organization (WHO) has also recognized the importance of traditional medicine and has developed strategies, guidelines and standards for botanical medicines. Agro-industrial technologies are essential for the cultivation, processing and manufacturing of herbal medicines. New medicines come from medicinal plants, and many modern medicines are indirectly made from plants.
