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intro cogno part 1

part 1 of first lecture
by

Change makers

on 5 October 2013

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Transcript of intro cogno part 1

History of pharmacognosy
ؤخلىp h a r m a c o g n s y
Get the
with
medical
effect
Drying
the plant
only
plant
you
now
have a
crude drug
product
vegetative
animal
mineral
Natural
or
or
origin
99% origin
vegetative
which have undergone
NO
processes
other than
collection
drying
&
what's crude drug?
used as (therapetic action ) or (as colourng & flavouring matter) of
medicine
ingredient of medicine
History of pharmacognosy
we will walk together through history...
they collected knowledge of
poisonous
p l a n t s
without
knowing its constituents
Herbal Books
Herbalists
Ibn Sina
Ibn EL Bitar
Dawood EL Antaky
just write
name
description
uses
without knowing anything about active constituent
Herbal pharmacopeia
show
Scientific name
pictures
uses
of poisonous plants
Pharmacopeia
computerized data base
more developed
explain
Constituent,
uses,
EveryThinG
about the plant
(folk medicine books)
Primitive man
Man had to search for
FOOD
SO he had to distinguish between
Edible
Poisonous
&
plants
These knowledge about plants were trasmited
Orally
between people
then he used
Poisonous
plants
for
Treatment
of diseases
treating people using herbs
few are derived from
&
origin
animal
mineral
We now have the applied science of
Pharmacognosy
that we are studying now at Faculty of Pharmacy
which deals with
Crude drug
of
mineral
vegetable
origin
animal
together with their
Constituent
Pharmakon=
derived from
(greek word)
Gignosco=
drug
knowledge

So
what is the of this
Natural Products
in Medicine
?
importance
They are
clue
for
new Therapeutic Agents
They put u
on the track of
DISCOVERY
مثعLeukemia
catha
ranthus
roseus
herb
FOR Treatment of
we extract from it
Vin
cristine
Vin
blastine
alkaloids
&
( vinCa )
Anti-hypertensive
Ra
wolf
Ser
roots
FOR Treatment of
we extract from it
Re
serpine
alkaloid
ia
pen
tina
س
brevi
folia
bark
FOR Treatment of
we extract from it
Taxol
alkaloid
in
America
سس(Solid cancer)
liver
breast
&
cancer
Taxus
hope u enjoyed
presented by
Do u know
in order to get
ONLY
few mg
of
Taxol alkaloid
10 trees
are needed
"
"
we use it as a
clue
TO know the
of the
Active constituent
STRUCTURE
that's why
AND synthesize it in pharmaceutical factories with
great
quantities
(taxol alkaloid)
Full transcript