introduction to herbal medicine with case histories - ann walker
TRANSCRIPT
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Dr Ann Walker Senior Lecturer in Human Nutrition
Hugh Sinclair Unit of Human Nutrition
The University of Reading, UK
Member of the National Institute of Medical Herbalists
Member of the College of Practitioners of Phytotherapy
“Herbal medicine workshop:with case histories ”
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Global origins of herbs used in UK by herbal practitioners
Native European Herbs200 BC: trade between Europe, Middle
East, India and Asia: culinary spices‘Discovery’ of Americas1700 & 1800s European migrations:
Americas, Africa, Australia1990s-present enhanced communication
between major herbal culturesFinland 1999
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Practice of Herbal Medicine and the Law in the UK - historical perspective
1542: Act of Parliament protected herbalists from prosecution
1968: The Medicines Act: provision for the prescription and supply of herbal medicine by medical herbalists according to “his judgement as to the needs of a particular person who consults him”
2000 onwards: Discussions led by Department of Health on development of a register of herbal practitioners
2004: Statutory Self Regulation (SSR)
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Current status of medical herbalism
University Degree courses (4 year): East London, Middlesex, Lancaster, Wales, Westminster
Training elements: Biochemistry, botany, anatomy, physiology, pathology,
differential diagnosis, pharmacology, clinical examination, materia medica, therapeutics, dermatology, geriatrics, ethics, psychiatry, laboratory diagnostics, clinical practice
Two year programme for medical doctorsProfessional bodies (insurance, CPD etc):
National Institute of Medical Herbalists (ca 400 members) College of Practitioners of Phytotherapy (ca 120 members)
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Examples of conditions which can benefit from treatment by a herbal practitioner
Inflammatory conditions: eczema, psoriasis, OA, RA, migraine, bronchitis, catarrh, sinusitus, hayfever, inflammatory bowel disease, peripheral neuropathy
Hormonal problems: menopausal, PMS, PCOSFatigue conditions: fibromyalgia/ ME/ CFSDigestive problems: gastritis, constipation, indigestionCardiovascular: arrhythmia, claudication,
hyperlipidaemia, hypertension
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Tripartite approach to treatment
Diet modification Diet enhancement Herbal medicine
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Consultation with a herbal practitioner
Length of consultation: typically 1 hour for 1st consultation, 30 mins for follow-up
Holistic approach to healthDietary advice and nutritional supportIndividualised herbal prescriptionNo need to change orthodox medicationIntegrated strategy with modern medicine
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The aim of nutrition and herbal medicine:
health and well-being through HOMEOSTASIS
Maintenance or re-establishment of the composition of the internal environment of the body within
narrow limits, consistent with the optimal function of the body’s cells
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Phytochemical spectrum of plants
Energy & fibresources
Phytochemical content/ physiological effect
Fruit and vegetables
Culinary herbs
and spices
Tonic herbal medicines
Potentherbal
medicines
Toxic plants
LOW HIGH
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Examples of foods with evidence from clinical trials of positive health benefit
Artichokes: high blood cholesterol Bilberries: retinal disordersBroccoli: cancer preventionCabbage: peptic ulcersCherries: goutCranberries: cystitis
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Examples of herbs with substantial clinical evidence of efficacy
Gingko : memory loss
Saw palmetto : enlarged prostate (BPH)
St John’s wort : mild depression
Valerian : insomnia
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How are prescriptions of herbs dispensed in practice?
Most commonly: Liquid medicine comprising a mixture of 3-7
herbal tinctures (in aqueous alcohol) individually prescribed for each patient
Occasionally: Teas (again, mixtures of herbs especially mixed
for the individual) Powdered herb capsules Herb extract tablets (concentrated form)
Finland 1999
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Case study SD: rheumatoid arthritis
29 yr old woman with hot swollen hands and feet, weak wrists
Just changed her diet: high F&V, wholegrains, no dairy products. Condition improving rapidly
Feb ‘97: (a) continue diet (b) high potency A-Z multi, CLO (omega 3), Vit C, E, Ca/Mg. (c) Rx: scullcap, vitex, pokeweed, echinacea, meadowsweet, guaiacum, devil’s claw/ 10 ml bid.
March ‘97: swellings down.
May ‘97: doing well, hands ‘wonderful’. Signed off.
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Case study of acute osteoarthritis
Patientdetails
First visit Feb 01
Treatment(no OA drugs)
Outcome
ML, male,Asian,47 yrs,non-smoker,lowintakeF&V,omega-3
Swollen Lknee withmusclespasm:8 months,pain 2 yrs,affectingjobHeadachesAsthma
F&V ,omega-3Mg , vit C&E
Devil's clawMeadowsweetCramp barkWillowbarkJuniperGumweed
Apr 01 swellingdown, painbearableMay 01 noswelling, pain,asthma &h'aches muchlessJun 01 signedoff
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Case study of Menopausal symptoms
Patientdetails
First visit Nov 'O2
Treatment Outcome
RA, 63yrs, non-smoker,diet lowin Ca,omega-3
StoppedHRT 6weeksago, somehot flushesandfatigue
Ca+Mg ,vit/minOmega-3
Black cohoshScullcapChinese angelicaMotherwortGoat's rue
Jan '03
Vitality muchbetter. No hotflushes. "Muchbetter than HRT"
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Case study of CFS
Patientdetails
First visit June '00
Treatment Outcome
AV,female,27 yrs,non-smoker,low Caintakeotherwisediet fine
Low vitality,sorethroats, earaches,painfulwrists,swollenglands, notworked for2 yrs
Mg , vit/min
St John's wortAstragalusThymeAshwagandhaLicorice
+ herbs to aidsleep
Dec '00 full-timejob, vitality better,symptomsimprovedFeb '01 copingwith job,managing gentleexerciseJune '01 new jobmost symptomsgone
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Effects of Grapeseed flavonoids on premenstrual leg health
0
1
2
3
4
5
6
Placebo Flavonoids
Baseline2 months4 months
Me
an
7-d
ay p
rem
enst
rua
l sco
re
P < 0.05
*
Christie et al. (2003) accepted for Phytomed
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Effects of bromelain on knee health
0
10
20
30
40
50
60
70
% I
mp
rovem
en
t
Pain Stiffness PhysicalFunction
Total Score
1 tablet 2 tablets
**
*
Walker et al. (2002) Phytomed 9, 681-686.
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Battersea-OA pilot study
Subjects: 20 men and women with OA of the kneeDesign: double-blind randomised intervention with a
mixture of herbs as tinctures individually prescribed from a limited list of herbs by a practitioner or placebo
Intervention: Half of prescriptions to be substituted with placebo tincture by a dispenser privy to randomisation. All subjects to receive dietary advice and nutrient supplements (vitamins, minerals, omega-3) throughout study of 10 weeks
Outcome: WOMAC questionnaire, C-reactive protein, well-being questionnaire
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Conclusions
Herbal treatment from a registered medical herbalist is aimed at normalising homeostasis
Herbs are rich sources of phytochemicals, also found in fruit and vegetables
There is increasing evidence of efficacy of herbal medicineUK herbal practice involves multi-intervention & includes:
dietary modification integration with modern medicine
A wide range of chronic conditions may benefit from a consultation with a herbal practitioner, including inflammatory, fatigue and hormonal problems
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