Stephen Holt MD-Therapuetics With Natural Remedies_ FEB08

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    THERAPEUTICS WITHNATURAL REMEDIES

    Stephen Holt MD, LLD (Hon.) ChB., ND, FRCP (C), MRCP (UK), FACP, FACG, FACN, FACAM

    Distinguished Professor of Medicine, NYCPM

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    HISTORIC PERSPECTIVES

    Pharmacognosy: the study of

    natural products used in medicine

    Ancient discipline of medicalscience

    Pharmakon = drug, Gnosis =

    knowledge

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    CONCEPTS

    Natural medicine cannot integrate intogeneral medical practice without ascientific base

    Botanicals or herbs are drugs and

    many drugs are botanicals or herbs, orsynthetic copies

    Dietary supplement manufacturersexhibit widespread ignorance about

    pharmaceutical science Hiding behind mythical and magical

    thinking is no longer acceptable inintegrative medicine

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    CONCEPTS

    Some natural clinicians baulk at attemptsto explain the bioactivity of naturaltherapies within the framework of currentscientific knowledge

    While sympathy exists for this position,our understanding of pharmacodynamiceffects of herbs, botanicals or nutrientsmust be based on scientific principles

    Conversations about clinicalpharmacology among dietary supplementmanufacturers are rare and practicallynon-existent with their customer base

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    DRUG OR NUTRACEUTICAL

    DISPOSITION If dietary supplements are to be used astherapeutic agents, there must be somerespect for basic pharmacologic concepts.

    The concepts are A, D, M and E One may look critically at some dietary

    supplements by simply consideringfactors that influence absorption,

    distribution, metabolism and excretion ofchemical compounds [drugs ornutraceuticals]

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    ABSORPTION

    Absorption is a complex function of routeof delivery, chemical characteristics,processes of movement across

    absorption barriers and physiologicalevents such as gastric emptying, ormodified by presence of disease, age etc

    Some nutraceuticals claim that they have

    absorption and bioavailability that cannotbe present, based on simple scientificprinciples

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    ABSORPTION [examples]

    FISH OIL: Unstable in regularformulations, denatured by gastric acid,power is with EPA. Dosage requirements

    high, compliance issues, triplebioavailability with enteric coat.Standard fish oil products passe

    SHARK CARTILAGE: solid or extract,

    enzymatic degradation of antiangiogenicproteins, buccal absorption a fairy tale,interesting facilitated absorption by aleaky gut

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    DISTRIBUTION

    Drug distribution is often uneven:different tissue binding, different PH orpermeability of tissues

    Example: Antioxidant Therapy: Idealantioxidant has lipophilic and hydrophilicprofiles and acts in a wide REDOX range

    Single high dosage antioxidants have

    dangerous pro-oxidant effects eg vit.C, E Most antioxidant supplements do not use

    the correct principles of formulation

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    METABOLISM

    The process of chemical alteration ofdrugs in the body

    A primary but not exclusive function of

    the liver Inactive and active metabolites are

    produced, by synthetic or non-syntheticreactions

    Example: Isoflavones: genistein/genistin,conjugation eg daidzein sulfate. Acomplicated story

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    EXCRETION

    Elimination from the body, primarily bythe kidneys

    A real concern exists with age related

    reduction in renal function andnutraceutical dosage adjustment

    Some complex mechanisms exist egreabsorption transport mechanisms,

    tubular secretion and biliary excretionwith enterohepatic cycling

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    GENERAL ISSUES

    Dietary Supplements are the main stay ofalternative and complementary medicine

    Growth overall in OTC sales

    Contemporary switch to natural remedies

    The natural remedy first line option aswell as the last line option

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    DSHEA- BASED MODEL

    WEAK SUPPORTINGDATA

    DIETARY SUPPLEMENT

    ?

    CREATE PLATFORM

    SELL WITH CLAIM

    PEER ACCEPTANCE

    SUCCESS FAILURE

    STRONG R & D

    PRODUCT AS A DIETARYSUPPLEMENT

    BODY STRUCTURE FUNCTIONCLAIM

    PEER ACCEPTANCE

    SELL (PHASE IV AND V)

    SUSTAINED

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    A PEEK INTO THE INDUSTRY

    The product of the month

    The evidence based formula

    Condition specific formulations CEO survey reveals scientific-

    based, new formulations are of

    major importance Who formulated the supplements

    you use in your practice?

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    KEY PUBLIC HEALTH

    INITIATIVES Lifestyle medicine combined withnutritional interventions have

    overshadowed allopathic approaches

    for many public health problems First line options for disease

    prevention are not rooted generally in

    drugs or surgery

    Many factors have moved consumersof health care to the new paradigm of

    simple, gentle and more natural

    interventions

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    KEY PUBLIC HEALTH

    INITIATIVES

    Adult obesity

    Childhood obesity (A Dead-Loss

    Disorder) Cardiovascular health

    Cancer

    Arthritis Osteoporosis

    THERE MUST BE A CONDITION SPECIFIC APPROACH

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    THE KEY PUBLIC HEALTH

    INITIATIVE The metabolic syndrome

    (SYNDROME X)

    A complex disorder rooted ingenetics, adverse lifestyle withprimary nutritional precipitation

    Defining Syndrome X

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    THE PUBLIC HEALTH RISK

    Syndrome X increases risk for :

    Maturity Onset Diabetes Mellitus

    Cardiovascular DiseaseCardiovascular Deaths

    Deaths from ALL CAUSES

    Am.J.Epidemiol, 148, 958, 1998.

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    SYNDROME X : THERAPEUTICS

    Soluble fiber eg oat beta glucan hydrocolloid

    Soy Protein 25 g/day

    Omega 3 fatty acids (EPA)

    Chromium

    Alpha lipoic acid Vanadium

    Antioxidants eg ellagic acid, bioflavonoids

    Starch blockers

    Cinnamon Maitake

    Green coffee bean extract

    Hoodia gordonii

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    LOWERING CHOLESTEROL

    When the treatment is worsethan the disease

    Diet Exercise

    Aggregate benefits of Soluble

    Fiber, Soy Protein, Omega 3fatty acids, Garlic, and others[synergy]

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    WEIGHT MANAGEMENT

    A holistic management approach that isbest undertaken by a practitioner ofintegrative medicine

    Multifactorial causes requiringmultipronged approaches

    Weight loss must not be the sole target formanagement. HOODIACY?

    The real issue is obesity related disease,disability and death

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    DIETARY SUPPLEMENTS AS A

    PROFIT CENTER

    Declining revenue for cognitive activity inclinical practice

    Dietary supplement dispensaries are a majorprofit center

    Supplement sales promote return visits andprecipitate spontaneous demands frompatients for disease prevention

    Margins on sales are high

    Supporting literature saves consultation time

    Avoid any unethical relationships withsupplement purveyors

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    ETHICS

    Physicians must not engage in selfreferral

    Private labels with physician identity

    are problematic [legal liabilities]

    State licensing authorities have mixed

    beliefs about supplement sales

    At law, dietary supplements are not to

    be used to prevent or treat any disease Medical practice should not be

    legislated

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    CONCLUSION The interface between alternative medicine

    and allopathic medicine is increasingly

    indistinct

    At least three quarters of all patients in an

    out-patient, hospital, clinic are takingsupplements, some of which are worthless

    A doctor who sells a dietary supplement

    that is available in retail will ruin their

    practice [A HUGE ISSUE] Supplement dispensation by healthcare

    professionals will lead to the responsible

    use of dietary supplements