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Raw material: Sustainable availability and concern regarding medicinal plants on negative list

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Raw material: Sustainable availability and concern regarding medicinal plants on negative list

اسلاید 1: www.tabaye.ir

اسلاید 2: Raw material: Sustainable availability and concern regarding medicinal plants on negative list Palpu Pushpangadan(palpuprakulam@yahoo.co.in)Director GeneralAmity Institute for herbal and Biotech Products Development Trivandrum, KeralaInternational Conclave on 16th & 17th Nov, 2006Traditional MedicineNew DelhiAMITYWe nurture talent

اسلاید 3: Traditional Medicine (TM)All healthcare practices and treatment of diseases practiced by traditional communities or local people in most of the third world nations are termed as Traditional Medicine.In fact all medicare practices of whole humankind before the on set of modern medicine in 19th Century were all Traditional Medicine. AMITYWe nurture talent

اسلاید 4: World Health Organization (WHO) defined TM as the sum total of the knowledge, skills and practices based on the theories, beliefs and experiences of indigenous cultures whether explicable or not used in the maintenance of health and in the prevention, diagnosis, improvement or treatment of physical and mental illness. The term ‘complementary medicine’, ‘alternate medicine’, and ‘non-conventional medicine’ etc. are used interchangeably with ‘traditional medicine’ in some countries. The raw materials for TM is mainly medicinal plants.AMITYWe nurture talentTM:

اسلاید 5: Fact file on Medicinal PlantsMedicinal plants are important components of Biodiveristy-a product of 3500 million years of evolution life on Earth. 30-100 Million species of life on Earth today300,000 higher plants – out of which 216,000 are in TROPICSOver 75,000 higher plants are used by different cultures for medicinal & aromatic purposeOver 15,000 higher plants species are used in AsiaAbout 7,000 in China & About 8,000 IndiaAMITYWe nurture talent

اسلاید 6: Tribal Medicine 8000 spp.Total number of flowering plants 17,500 spp. Folklore / LHT - 5000 spp. 54321Flowering plants used in Traditional Systems of Medicine in IndiaModern Medicine 30 spp. Amchi 300 spp.Unani 700 spp.Siddha 800 spp. Ayurveda 900 spp.AMITYWe nurture talent

اسلاید 7: Some features of modern health careModern health care policies largely market driven by the pharmaceutical industry diverting attention from health preservation to illness curePrevention and eradication of diseases undermines the economic basis of this industryNo satisfactory drugs available for most of the degenerative disorders characteristic of graying population and for re-emerging resistant infectionsAMITYWe nurture talent

اسلاید 8: Modern Drugs / Herbal DrugsModern drugs normally single molecules, rigorously tested, structures optimized, toxicologically cleared, Mechanism generally known and clinical trials done.Herbals have many molecules, safety and efficacy based on experiences of practitioners.Many modern drugs known to have severe side reactions (4th – 6th largest cause of death in US)Herbals generally considered benign. Mechanism of action not knownMore than 40 % modern drugs are plant based.AMITYWe nurture talent

اسلاید 9: Advantages of Herbal Drugs Modern drugs can produce serious side effects Iatrogenic diseases fourth leading cause of death in USA and other developed nations (JAMA, April 1998).Side effects of drugs kill more Americans annually than the world war II and Vietnam war combined (N. Y. Times 28.02.2003)Around 2600 persons died in the Twin Tower tragedy on 11th September 2001 causing global repercussions. It is, however, not recognized that about the same number die in USA from side effects of prescription drugs every 10 days (JAMA, April 1998). AMITYWe nurture talent

اسلاید 10: Strength of Ayurveda: Challenging diseases for which herbal drugs can be an answerFor stand alone therapies:- Degenerative, metabolic and immune based diseases having multiple causes like cancer, diabetes, arthritis, peptic ulcer, cardiovascular disorders, osteoporosis, Alzheimer and other CNS disorders.-parasite based diseases like malaria, filaria.Adjuvants: primarily to reduce side effectsMop-up therapy: immuno-stimulants for cancer TB etc.Prophylactics for diabetes, cancerDetoxifiers based on Ayurveda/Sidda/UnaniAMITYWe nurture talent

اسلاید 11: Weakness: Lack of Quality assurance of raw materials/medicinal plantsThe therapeutic quality/effect of medicinal plants are due to the presence of the biologically active chemicals which are mostly secondary metabolities such as alkaloids, glycosides, saponins, coumarins, flavonoids and terpenes, etc.75% to 80% of the medicinal plants required in Traditional Medicines (TM) is collected from wild. Sustained supply of quality raw materials is therefore difficult.AMITYWe nurture talent

اسلاید 12: 35 to 40% of the Medicinal plants used in TM are cross-pollinated species and hence there exists vast intraspecific genetic variability with respect to the morphological and chemical constituents.Heritability of these compounds are controlled by a variety of factors-genetic and macro and micro environment, season and stage, growth and development of the plant.Weakness: Lack of Quality assurance AMITYWe nurture talent

اسلاید 13: Weakness:Lack of written documentary evidence on clinical efficacy.TM- more particularly Ayurveda was/is essentially a highly customized/ individualized medicine. Transformation into a generalized and commercial system has adversely affected the systemLack of consistency in quality in batch to batch production of products. Lack of a well defined and well orchestrated SOP.AMITYWe nurture talent

اسلاید 14: Quality assurance of raw materialsGenetic variants (at ploidy level or gene level) leading to the variability in the chemical composition in the population.Geographical and edaphic factors-altitude, soil composition, microbial load/association, climate, temperature, season etc can cause variation.Association with plants, animals and insects.AMITYWe nurture talent

اسلاید 15: Eg. Seasonal variations in the alkaloid composition in the leaves of Adhatoda vasica has been recorded. It is lowest in February and March and highest in the months of August, September and October. Similarly variation of alkaloid contents based on the age of the plant is reported in Holarrhena antidysentericaQuality assurance of medicinal plantsAMITYWe nurture talent

اسلاید 16: Herbal Medicine Regulation in European UnionTM like Ayurveda gained popularity in Europe as a willness system. Ayurveda and other TM drugs were marketed as food supplements, cosmetics and health promoters. After the formation of European Union, the member countries decided to have their herbal industries and products under identical medicine controls by the end of 1992.AMITYWe nurture talent

اسلاید 17: UK was the first to introduce a Medicine Law in 1968 which made it mandatory to license all Herbal (Medicine) manufactured. Pure herbal medicine prepared by herbalist for treating his patients are exempted under sec. 12 of the Act licensing herbal medicine demanded documentary proof of efficacy and safety data.Herbal Medicine RegulationAMITYWe nurture talent

اسلاید 18: The European court (EC) directed that any product legally sold in one country of the Union must be freely sold in all other countries-with a provision “as long as the product was safe and did not harm consumers. EC Directive on Traditional Herbal medicine products (2001/83/EC and amendment 2004/27/EC). The Directive came into force from 1st Nov 2005 with a transitional period upto 2011. It introduced a fast track Traditional Use Registration (TUR) which need not supply any costly safety studies that need to provide documentary evidence of its traditional use.Herbal Medicine RegulationAMITYWe nurture talent

اسلاید 19: Traditional Use Registration (TUR)Under TUR, TM can be sold without the intervention of practitioner. For registering such products has to produce data on quality, traditional use history for a total of 30 yrs of which 15 years should be within EU countries. Registration of such product, however, could cost as much as E 7500 to 100,000 per product.AMITYWe nurture talent

اسلاید 20: Positive list of herbal substanceA committee for Herbal Medicinal products is established by the Directive, to prepare a positive list of herbal substances with therapeutic indicators, specified strength, route of administration and relevant safety information. The applicant can get the exemption from licensing without any traditional use data or safety data of the concerned herbal substance is in the list but just providing the quality data in the form of monographs.AMITYWe nurture talent

اسلاید 21: The German commission E came out with monographs for Therapeutic Guide to Herbal medicine which covered extensive published literature as chemistry, pharmacology, clinical and toxicology of herbal drugs and preparing a positive as well as negative list of herbal drugs and medicinal plants. The German Commission so far made a list of 254 positive monographs and 126 unapproved (negative) monograph. 45 herbs were negatively evaluated based on document risk. AMITYWe nurture talentPositive & Negative List

اسلاید 22: Negative List:This include Indian plants like:Basil, Celery, Chamomile, Cocoa, Colycynth, Ergot, Lemon grass, Liver wort, Marjoram, Nutmeg, Periwinkle, Oleander, Nuxuomica, Passely seeds, Papain seeds, Rhododendron, saffron, Sarasaparilla roots, walnut null. The commission also developed a neetral list which are suspected danger list.Basil is Ocimum basilicum having estragole with mutagenic effectAMITYWe nurture talent

اسلاید 23: Neutral list57 unapproved monographs due lack of scientific documentation of the use claimed by industry is kept under neutral list with the condition that if safety and efficacy data is provided it can be included in the positive list.This include:Calendula, Chestnut leaf, Pimpenella, Papaya leaf, Corsuflower, Red sandalwood, Spinach leaf, Figs, Echinacea angustifolia, Ginkgo biloba etc.AMITYWe nurture talent

اسلاید 24: Sweden’s negative list of medicinal plants for health foodJune 2005 Sweden came out with another negative list of medicinal plants based on toxicological evaluation of medicinal plants and recommended not to use them in health food, or nutraceuticals or in food supplements. This include plants of Indian origin such asAcorus colamus, Aristolochia spp, Cinnamon flowers, Balladonna, Berberis, Cannabis sativa, Taxus baccata, coleus forskohlii, Ephedra spp Gingo biloba, Ruta graveolens, Strychnos seeds, Veronica Solanum nigrum etc.AMITYWe nurture talent

اسلاید 25: Reason for decline of quality in TM like Ayurvedic medicineTM like Ayurveda was/is essentially a personalized/customized system of diagnosis and treatment. Collection of raw materials, preprocessing were done as per strict guideline which was based on experiential wisdom. Transformation into generalized and commercial system Ayurveda suffered greatly in quality assurance.AMITYWe nurture talent

اسلاید 26: Traditional Medicine: ThreatsPoor positioning on a global levelIgnored by global scientific communityVery little work on scientific validationsLack of well defined and well orchestrated SOPVery little publication in peer reviewed journalsDeliberative negative propagandaAMITYWe nurture talent

اسلاید 27: Demonstrated SafetyMapped Efficacy (Pharmacologically credible formulation)Sustained availability of quality raw materialsConsistency in batch to batch qualityFor polyherbals, contribution of each herb to be proved along with synergism. It should be synergistic rather than additiveAvoidance of endangered speciesEasy availability and accessibility of medicinal plant.Minimum requirements for TM for global acceptanceAMITYWe nurture talent

اسلاید 28: Need for:Domestication, genetic enhancement & cultivation of important wild medicinal plants with stable heritable characters of therapeutic importance.Development of package of practices & post harvest handling of medicinal plants/ raw material.Scientific validation of the therapeutic claimsSafetyCustomer satisfaction and confidenceAMITYWe nurture talent

اسلاید 29: Correct taxonomic identification of medicinal plant.Study on the medicinal part: root, stem, bark, leaves, flowers, fruits, nuts, gum, resins, etc.Collection details: location, stage & development/growth of the plants, time, pre-processing if any, storage etc.Organoleptic examination of raw drug-Evaluation by means of sensory organs: touch, odour tasteMicroscopic & molecular examinationChemical composition (TLC, GLC, HPLC and DNA fingerprinting of the plant.Identification of biologically active marker compound(s)Shelf life of raw drugsNeed for: Standardization of raw materialsAMITYWe nurture talent

اسلاید 30: Need for: Good practices/Techniques in Herbal productsGood survey of literature (Ancient & Modern)Develop and Observe Norms of:Good Agricultural Practices (GAP)Good Collection/Harvesting and Post Harvest Handling Practices (GCP/GHP & GPHP)Good Laboratory Practices (GLP)Good Clinical Practices & Pharmacovigilence (GCP & PV)Good Manufacturing Practices (GMP)Good Marketing Techniques (GMT)AMITYWe nurture talent

اسلاید 31: Thank YouAMITYWe nurture talent

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