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Poisonous Herbal Plants
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Publishing-in-support-of,
EDUCREATION PUBLISHING
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Shubham Vihar, Mangla, Bilaspur, Chhattisgarh - 495001
Website: www.educreation.in
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The opinions/ contents expressed in this book are solely of the authors and do not represent the opinions/ standings/ thoughts of Educreation or the Editors . The book is released by using the services of self-publishing house.
Printed in India
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iii
Poisonous
Herbal Plants
Md. Rageeb Md. Usman
Mrs. Surekha D. Salgar
Dr. Navneet Nagpal
Dr. Mohammed Zuber Shaikh
EDUCREATION PUBLISHING (Since 2011)
www.educreation.in
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Md. Rageeb Md. Usman (M. Pharm., FICPHS, FAPP, FSPER, FSRHCP, FRSH)
Department of Pharmacognosy
Smt. S.S. Patil College of Pharmacy
Chopda, Maharashtra, India
Mrs. Surekha D. Salgar (M. Pharm.)
Department of Pharmacognosy
Smt. S.S. Patil College of Pharmacy
Chopda, Maharashtra, India
Dr. Navneet Nagpal (M. Pharm., Ph.D.)
Faculty of Medical, Paramedical,
Pharmaceutical and Health Sciences,
Khalsa University,
Amritsar, Punjab, India
Dr. Mohammed Zuber Shaikh (M.Sc., Ph.D.)
Department of Zoology,
Senior Science College,
Akkalkuwa, M.S., India
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Foreword
In this book, Mohammed Rageeb Mohammed Usman & Co-authors has
generated an interesting volume on poisonous herbal plants that
investigates their times past in a scholarly yet interesting manner. He
conversed about numerouspertinent species, alludingto archaeological
sources which are recurrent date back many centuries and more. He has
prepared these old manuscripts accessible to modern reader by
deciphering their antiquated historic context. This book comprises of
significant upto date research on the toxicity, pharmaceutical and
therapeutic utilization of poisonous herbs. This book presents a
fascinating and significant discussion on poisonous plants from our
historical literatures. Most of the poisonous herbs are still present in our
environment. Even though today, their chief utilization is basically
ornamental.
The content of this book will be relished by anybody who is fond of
knowing more aboutpoisonous herbs than just their name. Each
poisonous plant is picturesquedescribed and vigilantlyargued in a
comprehensible and intelligent approach. It is a pleasure to have been
asked to write a foreword to such a readable and engaging book.
Sd/
Dr. Upendra Nagaich M.Pharm., Ph.D., FSPER
Coordinator,
Amity Institute of Pharmacy,
Amity University, Noida
Secretary,
Society of Pharmaceutical Education
& Research [SPER]
****
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vii
About The Authors
Mohammed Rageeb Mohammed Usman :
B.Pharm, M.Pharm (Pharmacognosy); Pharmacist; b
May 24, 1984 Kasoda (Maharashtra); Educ. North
Maharashtra Univ, Jalgaon; Asst. Prof, Pharmacognosy
Dept, Smt. Sharadchandrika Suresh Patil College of
Pharmacy, Chopda; Having 8.5 Year Experience, Life
Member: Asscn. of Pharmaceutical Teachers of India,
Soc. of Pharmaceutical Education & Research (Joint
Secretary, Central Br), Asscn. of Pharmacy Professionals (President,
Maharashtra State Br.), Indian Hospital Pharmacists Asscn, Indian
Pharmacy Graduates Asscn, Indian Pharmacists Asscn. (President,
Jalgaon Br.), Research Scholar Hub (Maharashtra State Br.), Soc. of
Researchers & Healthcare Professionals (President, Maharashtra State
Br), Indian Pharmaceutical Asscn; Member: Indian Soc of
Pharmacognosy, Asscn of Biotechnology & Pharmacy, International
Natural Hygiene Soc; Assoc Editor/Editor of several professional
journals and magazines; participated in more than 160 national and
international conferences/symposia; publs.Books: Appraisal on
Nephroprotective Herbal Plants (2014), Anti-Inflammatory and
Antipyretic Activity (2015), Traditional System of Herbal Medicines
(2015), Practical Hand Book on Systematic Organic Qualitative Analysis
(2015), Practical Handbook on Pharmacognosy (2016), Multiple Choice
Questions (MCQs) in Pharmacology (2016), Standardization Techniques
of Herbal Medicines (2016)-co-author; 1 book chapter; and more than 55
research papers/articles published in various national and international
journals; Awards Fellowship Award 2013 (twice), 2014, 2015 (twice),
Appreciation Award for Poster 2013, Young Performer Award 2013,
Young Pharmacy Teacher Award 2014, Best Oral Presentation Award
2014, Young Innovative Researcher Award 2014, Appreciation Award
for Oral Presentation 2014, Young Talent Award 2014 (twice), 2016,
Young Pharmacist Award 2015, Young Excellent Academic Award
2016, Life Time Achievement Award 2016. Recently his Biography has
been included in the renowned directory "Who's Who in the World 2016
and published in the 14h Volume, August 2016.
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viii
Mrs. Surekha D. Salgar :
Assistant professor, Department of Pharmacognosy at
Smt. S. S. Patil College of Pharmacy Chopda, NMU
University Jalgaon, Maharashtra, India. She completed
B. Pharm. and M. Pharm. Degree from Mumbai
University. She has taught Pharmacognosy for over 6
year. She Published 2 International book and efforts in
research and review have led to the publication of 8
research and review paper in national and international journals. She has
attended various global conferences. She is a life time member of ISP,
APP, SRHCP, and RSH.
Dr. Navneet Nagpal :
Assistant Professor in Faculty of Medical, Paramedical,
Pharmaceutical and Health Sciences, Khalsa
University, Amritsar. He is graduated at University of
Rajasthan, Jaipur and qualified GATE with 322 score,
Post Graduate from
North Maharahtra University, Jalgaon and obtained
Ph.D. from Bhagwant University, Ajmer in 2012. He
has 9 years teaching experience and supervised M. Pharmacy and PhD.
students. He is more than 20 publications to his credit in reputed journals
of Pharmacy, presented more than 10 posters in national and
international conferences and having life time memberships in reputed
associations of Pharmacy field.
Dr. Mohammed Zuber Shaikh Usman :
He has been awarded Ph.D degree from University of
Mumbai, Mumbai. He started his carrier as a Senior
Research Fellow in one of the best ICAR research
Centre located in Mumbai on World Bank Funded
project titled as „Climate Change Adaptation‟. He has
worked as assistant professor in Sathaye College, Vile
Parle (E), Mumbai. He has Presented/Participated and
published many Research and Review articles in peer reviewer
international journal and conferences, even He hold chairmanship in
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ix
scientific sessions of many conferences. He published Four International
book. He guide under graduate students on various research base project.
Presently he is working as Head of Zoology Department, Senior Science
College, Akkalkuwa, Maharashtra affiliated to North Maharashtra
University, Jalgaon.
He is selected as a Vice President of Society of Pharmaceutical
Education and Research (SPER) & Association of Pharmacy
Professional (APP) and Honor as a Life Membership of SPER & APP.
He is also Expert for Poster Evaluation in various National and
International Conference & Exhibition.
****
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Preface
The book titled as “Poisonous Herbal Plants” written with an intention to
benefit the Diploma, UG, PG and Research Scholar students.
This book acknowledged importance study of Medicinal Plants and
the constantly increasing recognition of its extended practical as well as
scientific applications.
Since time immemorial, human beings have learned on
plants/herbs/shrubs etc. for curative treatment of diseases and to secure
prevention and cure against manifestations of various ailments.
In this context the goal at this book is to provide the update
knowledge to the students in the professional programmed at their study.
The discovery of drug is tremendously increasing due to the great
advancement bioassay screening isolation techniques and structure
elucidation.
The objective of this book is to spot a light on the brief introduction
of about Poisons herbs and plants to the students and researchers.
In the present global scenario, natural medicines are gaining
prominence; because they are available at economical prises and
relatively free from most of adverse drug effects or so called side effects.
We have made every effort to avoid errors, clarify unmeaning
words, and printing errors, but sometimes at then may arise in present
edition, we would correct and/or omit hem in subsequent editions.
Authors
****
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xi
Acknowledgement
The authors are thankful to Prof. Dr. V. R. Patil, “Dean” of
Pharmaceutical Sciences, North Maharashtra University, Jalgaon,
Maharashtra, India and Principal, H‟ble LMC‟s TVES‟s. College of
Pharmacy, Faizpur, Member of Management Council, NMU, Jalgaon for
his valuable guidance and critical suggestions.
We are thankful to the Management and Prof. Dr. G. P. Vadnere,
Principle, Smt. Sharadchandrika Suresh Patil College of Pharmacy,
Chopda, Maharashtra, India.
The authors are grateful to Prof. Dr. Sunil P. Pawar, Chairman,
Board of Studies, Pharmacognosy & Pharmacology, of N. M. U.,
Jalgaon, India and Principal, PSGVPM‟S College of Pharmacy, Shahada,
for his excellent guidance.
We are grateful to our parents for their unconditional love, support
and encouragement. We are also thankful to publisher for publishing the
book. We extend our thanks to supportive friends, colleagues for
bringing out nicely printed book.
Authors
****
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xii
Contents
S. No. Content Page No.
1. Foreword vi
2. About The Authors vii
3. Preface x
4. Acknowledgement xi
5. Chapter1: Introduction 1
6. Chapter 2: Herbs 12
7. Chapter 3: Poisonous Plants 187
8. Bibliography 193
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Introduction
1
1
INTRODUCTION ______________________________________________________________________
General Introduction
In India use of the different parts of several medicinal plants to cure
specific ailments has been in vogue from ancient times. The indigenous
system of medicine, namely, Ayurvedic, Siddha and Unani have been in
existence for several centuries. In Siddha medicinal system use of
poisonous plants helps to cure some disease. It is important to have an
awareness regarding the poisonous plants which when used in the proper,
prescribed dose, acts as potent therapeutics agents. According to World
Health Organization, 80% of the population of developing countries
depends on plant drugs for regular source of medicines. Poisonous
principles are classified based on the chemistry of toxic compounds
present in it: Alkaloids, Glycosides, Oxalates, and Photosensitizing
compounds, Phytotoxins, Polypeptides and Resins. Plants differ by
degree of toxicity and classify them as extremely, moderately or
minimally toxic. It is difficult to categorize plants with regard to their
toxicity, since this varies with the age of the victim, environment, and
stage of plant growth. Degree of toxicity is variable.
Plant toxins are substances produced as secondary metabolites that
are identical to extra cellular bacterial toxins in their properties. They
show both useful and harmful effects in human beings and animals. They
Show a wide range of side effects from minor itching, nausea, vomiting
to adverse effects like psychosis, paralysis, teratogenecity, arrhythmias.
They are useful in production of cosmetics, ulcers, menstrual cramping,
and cancer and in treatment of man ailments and diseases. Toxins may
enter into the body either by inhalation, swallowing or by contact. The
action is based on their chemical constituents who are classified into
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Introduction
2
alkaloids, glycosides, proteins, oxalates, anti-vitamins, tannins, volatile
ether layers etc. They act by altering specific mechanisms involving
enzymes, receptors and even genetic material at particular cells and
tissues. Poisonous plants have a seed, root, leaf, stalk, fruit or juice where
even a relatively small amount, taken either internally or eternally, can
lead to injury to the human body. In some species the poisonous
constituents occur throughout the whole plant. In others they are
concentrated in one or more parts. The degree of toxicity also depends on
the location (including height above sea level), climatic factors including
the local microclimate (light, warmth, and humidity), and the growing
season, type of soil, fertilization, plant variety and age. The condition of
the poisonous plant material is equally important (dried, chewed, cooked,
as tea). The dose of course is the most important factor. There are a huge
variety of plant poisons and it is difficult to organize the myriad plant
toxins in an understandable manner. Plant toxins are described according
to the organ system in the human body which they affect, e.g.
cardiotoxins, neurotoxins etc. The difference between the terms
„medicinal‟ and „poisonous‟ is sometimes smaller than one might think
There are several species which are poisonous or injurious to human
body and can be found in the garden or planted by the forest department
as a roadside tree with or without the knowledge about their effects on
human body system. Poisoning can be by contact causing skin irritation,
ingestion causing internal poisoning and absorption. Some plants which
are considered as harmless are actually not so. Many plants are used in
some way or the other in medicines especially in homeopathic
pharmacology. This review has the basic such as the botanical, Family
names, common names, toxic parts of the plants, chemical constituents,
signs and symptoms of toxicity and its use in Traditional Indian System
of Medicine.
Classification of Poison
According to their mode of action, poisons are broadly classified in three
groups, these three broad groups are sub-divided on the basis of their
effect on the body, type of composition etc.,
1. Corrosive
a. Strong Acid
b. Organic Acid
c. Alkali
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Introduction
3
2. Irritant
a. Inorganic Irritant
b. Non Metallic
c. Metallic Irritant
3. Systematic
a. Nervous System
b. Cardio Vascular System
c. Respiratory System
Classification
Plant toxins are classified based on their structural and chemical
properties. They are grouped into alkaloids, glycosides, tannins, proteins,
oxalates, enzyme inhibitors, antivitamins, phyto estrogens, volatile
etheric layers and photo sensitizing substances.
Alkaloids include indole alkaloids, pyrrolizidine alkaloids, tropane
alkaloids, opium alkaloids,vicine and covicine alkaloids.
Glycosidal toxins include cardiac glycosides, goitrogenic glycosides,
anthraquinone glycosides,mustard oil glycosides, saponin glycosides,
cyanogenetic and glycosides.
Tannins like pyrogallol.
Proteins like lectin, abrin, ricin, cicutoxin, anisatin, gelonin,
falcarinol, oenotheatoxin etc.
Antivitamins like thiaminases , Phytoestrogens like coumestrol .
Volatile etheric layers such as ushuriol, Photo sensitizing substances
including hypericin .
Enzyme inhibitors like Cholinesterase inhibitors, Protease inhibitors,
Amylase inhibitors. Other sinclude Lathyrogens, Anti-thiamin
compounds and Avidin.
Plant Toxins
Abrin, Anisatin, Andromedotoxin, Apocyanin, Amygdalin, Aesculin,
Anabasine, Anagyrine, Aspargine, Avidin
Brucine
Chaconine, Cicutoxin, Cicutiol, Cardinilides, Cycasin, Cyanarin,
Confoline, Convolmine, Covicine,
Convoline, Convosine, caratotoxin,cucurbitacin
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Introduction
4
Delphinine, Djenkolic acid, Dhurrin, Levo-Duboisine
Epipodophyllotoxin
Falcarinol, Frascin, Fagopyrin quinines , furocoumarin
Gelonin, Gossypol, Grayanotoxin, Gallotoxin
Hymexon, Hypericin, Hymenoxon, Hyoscine
Illicin, Isoalyl thiocyanates, ipomeamarone
linamarin, lotaustralin, Lycorine, Laetrile, Lectin, Lantanene
beta–methylamino–l-alanine,Macrozamin,Mezeein,4
methoxypyridoxine
Nitrates, Naudicoline, Nerosides
Oenanthotoxin
Phytotoxin, Pseudaconitine, Pyrrolizidine Alkaloid, Persin,
Prunassin, Podopyllotoxin,Phenanthridineprolamine, Phytolaccine,
Phytolaccatoxin, Phytolaccigenin, Protoanemonin
Resiniferatoxin, Ricin, Ranunculin
Saponin, Scopolamine, Solamargine, Solasodamine, Solasodine,
Solasonine, Solauricidine, Solauricine, Strychnine, Swainsonine,
Syringomycin, Sambunigrin, Solanine, Shankhapushpin
Thionins, Tinyatoxin, Tutin , Tremetol ,Taxine
Ushuriol
Vicine
Plant toxins act on all parts of the body with some common symptoms
like vomiting, nausea. They show actions based on the way of exposure
and concentration. They are both useful and harmful.
Characteristics of Ideal Poison
The characters of an ideal homicidal/suicidal poison should be
cheap
easily available
colourless
odourless and tasteless
capable of being administered, either in food, drink or medicine,
without producing any obvious change to prevent suspicion and
highly toxic
capable of painless death
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Introduction
5
Signs and symptoms should resemble a natural disease, or the serious
ill effects should be delayed sufficiently long for the accused to
escape suspicion.
Must be rapidly destroyed or made undetectable in the body.
The number of factors, which are affecting the characteristics of
poisoning any victim‟s as dose/quantity given to the victim, in which
form (physical/chemical) the poison inject to the body, resistivity of body
and condition of the victim (he/she might be drug addict/ in sleep or
intoxication). Unless the poison is given in liquid form or small amount,
the greater part of it may be lost by vomiting. However, there
organization of poisoning during life is a matter of the first important,
both from the point of view of the medical jurist and as a forensic
crimescene investigator.
Human Physiological Responses to Toxic Substances
Human Physiological Responses to Toxic Substances The human body
needs very small quantities of chemicals that are poisonous in large
doses. This applies, for example, to some heavy metals, such as copper,
magnesium and manganese. The adverse effect is strongly related to the
dose. The effects may be immediate or delayed, and they may be
reversible or irreversible toxic effects the worst possible effect is fatality.
Local/systemic toxicity: There are two main ways in which chemicals
may exert their effects. Local effect so occur at the area of the body
which has been in contact with the chemical. Examples include external
tissue injuries from acids or lung injuries from inhaled reactive gases.
Systemic effects occur after the chemical has been absorbed and
distributed from the entry point to other parts of the body. Most
substances produce systemic effects, but some substances may cause
both types of effects. An example is tetraethyl lead, which is a gasoline
additive and produces skin effects at the contact site. It may also be
absorbed and transported into the body causing adverse effects on the
central nervous system and on other organs. Target organs: The degree of
the toxic effect is not the same in all organs. Usually there are one or two
organs which show the major toxic effect. These are referred as target
organs of toxicity of the particular substance. The central nervous system
is the target organ of toxicity most frequently involved in systemic
effects. The blood circulation system, liver, kidneys, lungs and skin
follow in frequency of systemic effects. Some substances attack muscle
and bones. Both the male and female reproductive systems are
susceptible to adverse and often debilitating impacts from many
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Introduction
6
substances Skin. The largest organ in the human body (~1.5-2 m 2 in
area) provides a protective cover to the body organs but can allow
permeation of chemicals if the load is excessive. Many substances can
infiltrate through the skin and find its way to the hematological system,
for example phenol, which may even lead to fatality in the event of
heavy exposure. Most common forms of skin disorders that may occur
due to chemical contact are: eczemas, irritation and local inflammation.
This condition can be either a non-allergic or allergic reaction to
exposure to chemical substances. Examples of common contact allergens
are several colorants and dyes, nickel, chromium, cobalt and their salts,
organomercuric compounds, acrylate and methacrylate monomers,
rubber additives and pesticides. Chemical skin injury may also be
influenced by extreme levels of humidity and heat.
Lung
The lung is the major route through which toxic substances in the
workplace enter the body. It is also the first organ to be affected by dusts,
metal fumes, solvent vapours and corrosive gases. Allergic reactions may
be caused by substances such as cotton dust, toluene diisocyanate (TDI,
used in the manufacture of polyurethane plastics), and methylisocyanate
(MIC, used in production of carbaryl insecticide). Allergic reactions may
result from exposure to bacteria or fungi. When dust particles of size
lower than 0.1μm are inhaled the lungs are unable to exhale them. They
become embedded in the lung leading to a condition called
pneumoconiosis .Pneumoconiosis is mainly a problem for human beings
exposed to the dust of silica (quartz) and asbestos, and is the commonest
non-malignant occupational lung disease throughout the world. Other
substances, such as formaldehyde sulphur dioxide, nitrogen oxides and
acid mists may cause irritation and reduce the breathing capacity.
Nervous System
Several types of substances act as neurotoxins. The nervous system is
sensitive to the hazardous effects of organic solvents, such as carbon
disulphide. Some heavy metals also affect the nervous system; examples
include lead, mercury and manganese. Several organophosphate
insecticides (malathion, parathion) and other chemicals such as
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Introduction
7
acrylamide hinder chemical neurotransmitter function in the nervous
system, leading to weakness, paralysis and sometimes death. The blood
circulation system may also be adversely affected by solvents. For
example, benzene affects the bone marrow; the first sign is mutation in
the lymphocytes. Pure as well as compounds of lead, carbonmonoxide
and cyanides, may overcome enzyme activities involved in the
production of hemoglobin in red blood cells. Chronic lead poisoning, for
example, may result in anaemia, a condition in which the ability of the
blood to distribute oxygen through the body is impaired.
Liver
The main function of liver is to break down unwanted substances in the
blood. Solvents such as carbon tetrachloride, chloroform, nitrosamines
and vinyl chloride, as well as alcohol, are hazardous to the liver. Such
substances are termed hepatotoxins.
Kidneys
Kidneys help excrete waste substances that the blood transports from
various organs of the body. This helps: (i) ensure that the body fluids
contain an adequate blend of various necessary salts; (ii) maintain the
blood pH constant. Solvents such as carbon tetrachloride, other
halogenated hydrocarbons, may irritate and can severely damage kidney
function. Turpentine in large quantities is also harmful to the kidneys:
`painter's kidney' is a known condition related to occupational exposure.
Other well-known kidney-damaging substances (otherwise termed
nephrotoxins) are lead and cadmium.
Reproductive System
Several classes of compounds are also known to produce disorders of the
reproductive system and impair birth functions. Examples include
thalidomide, formamide, tetracycline, etc. Allergic reactions. An allergic
reaction (or sensitization) may appear after repetitive contact with a
substance. Once the sensitization has been produced, even very low
doses can provoke a reaction. Allergies can range from minor skin
irritation to very severe or even fatal reactions. The pattern of
sensitization varies according to the organism exposed to an allergen. In
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Introduction
8
humans, the skin and the eyes are the most common areas of allergic
response.
Interactive effects of chemicals on human body. The effect
manifested by combination of chemicals (and mixtures) is known to be
varied. In some cases the effect may be additive (1+1=2).
Organophosphate pesticides (for example, dialiphos, naled and
parathion) exhibit such additivity of effects.
In other cases the combined effect of chemicals may exceed that of
the individual ones (e.g., 1+1=4). It has been found that the risk of
developing lung cancer after exposure to asbestos fibres is forty times
greater for a smoker than for a non-smoker. In the domain of solvents,
trichloroethylene and styrene manifest similar behaviour. When two
substances negate each other‟s effect (1+1=0), it may provide an
indication as to an antidote (as say for a poison).
In still other instances, a relatively risk-free substance may
aggravate the effect of another (e.g., 0+1=3). Isopropanol and carbon
tetrachloride have this kind of mutual effect. Isopropanol, at
concentrations which are not harmful to the liver, increases the liver
damage caused by carbon tetrachloride.
Table 1: Mechanism of Action of Different Toxins
Sr. No Chemical
constituents
Mechanisms of action
1 Alkaloids
Glycoalkaloids Interacts with mitochondrial
membranes open the potassium
channels of mitochondria, increasing
their membrane potential. Increase
concentration of Calcium in the that
triggers cell damage and apoptosis
Indole alkaloids Beta carbolines act as MAO inhibitors
link to benzodiazepine receptors.
Increase serotonin action
Pyrazzolidine
alkaloids
Cross link with DNA. Anti-mitotic
action. Form fibrous tissue
2 Cyanogenic
glycosides
Release HCN. Inhibit oxidative process
of cells.
Saponin glycoside Interact with LC cells. T cell mediated
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Introduction
9
contact dermatitis
Goitrogenic
glycosides
Inhibition of both Thyroid peroxides
and Lacto peroxides. Inhibits both
TPO- catalyzed iodination and coupling
Anthroquinones
glycosides
Produce myoelectectric alteration in
intestinal smooth muscle and induce
accumulation of fluid
Mustard oil
glycoside
Aqueous extracts of mustard also
inhibited formation of diene, and
tetraene conjugate in human erythrocyte
membranes
3. Oxalates Form salts with Positive ions. Forms
calcium oxalate, ferric oxalate. Form
stones in kidney
4 Tannins Precipitate proteins
5 Proteins
Abrin Inhibit protein synthesis
Anisatin Suppress GABA induced currents,
show use dependency
Cicutoxin Cholinergic poison GABA antagonist
disrupts CNS
Thionins Attacks membranes, make it permeable,
decrease sugar uptake.
Galonin Exert N glycoside action on r RNA of
ribosome.
Epi
podophyllotoxin
Inhibit topoisomerase II
6 Antivitamins Coumestrol--- Inhibit aromatase,
hydroxy steroid
dehydrogenase.Phytoestrogen exert
their effects primarily through binding
to estrogen receptors, alpha and beta
and many phytoestrogen display
somewhat higher affinity for beta as
compared to alpha
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Introduction
10
Thiaminases Aids carbohydrates metabolism for
CNS muscle, heart
Hypericin Nonspecific kinase inhibitor inhibits
dopamine beta dehydrogenase
7 Volatile Etheric
Layers
Ushuroil T- cell mediated dermatitis, changes
shape of integral membrane proteins
8 Enzyme inhibitors
Cholinesterase
inhibitors
Cholinesterase inhibitors ultimately
modify cholinergic signalling through
disruption of acetylcholine degradation
Protease inhibitors The protease inhibitors can slow virus
production
Amylase inhibitors Inhibiting membrane – bound alpha –
glucosidases.
Treatments
General First Aid
When a child eats any non-food plant material, contact a physician or a
poison control center whether symptoms are present or not. If a
poisonous plant has been eaten and if medical help is not readily
available, the U.S. Department of Health and Human Services, Division
of Poison Control suggests the following: vomiting should be induced
(unless the victim is already vomiting, is unconscious or convulsing) by
giving syrup of Ipecac with a glass of water (1 tablespoonful or 15 ml or
1/2 ounce of Ipecac for children, double for adults). To prevent the
vomitus from being inhaled (aspirated) into the lungs the victim should
be made to walk about, or should be held in a head down "spanking
position". After vomiting has ceased, about 1ounce (child; 3 oz. adult) of
activated charcoal and water should be given orally. Because activated
charcoal will not dissolve in water, it should be swirled around in the
glass and drunk quickly. Many pediatricians recommend that syrup of
Ipecac and activated charcoal be kept in the home medicine chest. If the
child must be brought to a physician or emergency room, a sample of the
plant, with flowers and seeds if possible, should be brought along for
positive identification.
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Introduction
11
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