Review Article: Pluchea Lanceolata
Review Article: Pluchea Lanceolata
Review Article
INTRODUCTION thermogenic, used for allaying and the pain caused by the
sting of scorpions4-8.
herbs are taken in combination with other herbs to trichomes; the covering trichomes were uniseriate,
neutralize the toxicity of one herb with the opposing multicellular (2 - 5 cells of about 90 m in size and
effect of the other or to enhance the particular effect of lignified while the granular trichomes were sessile as well
one herb with the help of other. Pluchea lanceolata is one as stocked. The function of collenchymatous tissues,
of the ingredient of more than 80 poly-herbal vascular bundles and parenchymatous bundle has also
7, 13, 14
formations . been studied. Further studies revealed that the
transverse section of the leaf passing through lamia
PHYSICOCHEMICAL STUDIES
shows a row of small sized palishade under both upper
Medicinal plants have played a significant role in ancient and lower epidermis in continuation within midrib18.
traditional system of medicine. An impressive number of
Stem
modern drugs have been isolated from natural sources.
Plant derived substances has recently become a great The transverse section of the stem of Pluchea lanceolata
interest owing to their versatile applications. According to is almost circular in outline covered with thick circle.
the WHO, the first step for identification, purification and Epidermis consists of single layer of thick walled cells
standardization of herbal drugs is the pharmacognostic along with covering and granular trichomes. Covering
(macroscopic and microscopic) and physicochemical trichomes are uniseriate, multicellular with two to many
studies which are essential for any phytopharmaceutical thick walled cells while granular ones are sessile as well as
products used for standard formulation. Preliminary stalked. Collenchymatous hypodermis lies underneath the
phytochemcial studies are helpful in finding out chemical epidermis, followed by 5 - 7 layered parenchymatous
constituents in the plant material that may well lead to cortex18.
their quantitative estimation. Pluchea lanceolata is one of
Root
the important medicinal plant having many therapeutic
uses. It is therefore necessary to establish the quality The transverse section of the root of Pluchea lanceolata is
control parameters for the leaf stem and roots of Pluchea almost circular in outline. Epiblema is single outer most
lanceolata with various pharmacognostical and layers made up of parenchymatous cells along with
standardization techniques. It comprises of macroscopical uniseriate multi cellular root hairs. Cortex is next to
and microscopical characters, physicochemical constants, epiblema and consists of parenchymatous cells with
extractive values with various solvents, fluorescence sufficient intercellular spaces. The cells of cortex contain
analysis, its reaction after treatment with chemical starch grains, oil cells and lignified cells. Cortex is followed
reagents under visible and in UV light, preliminary by endodermis and pericycle. The presence of phloem,
phytochemical screening of leaf, steam and root extracts parenchyma, phloem fibers, xylem and parenchymatous
following official compendia. The results help to establish has also been discussed17.
the standardization of the drug15-17.
Physicochemical Analysis
Macroscopic Characters
Air dried plant material of Pluchea lanceolata were used
The plant Pluchea lanceolata is an erect allelopathic, for quantitative determination of physicochemical values.
perennial under shrub growing up to 30-100 cm high. Total ash, acid insoluble and water soluble ash of all in
Stem is cylindrical, 2-3 mm in diameter. Outer surface is vivo (leaf, stem, root) and in vitro (callus) plant samples
whitish green, having branched and branches are were determined following WHO/QCMMPM guidelines
pubescent. Leaves are simple (0.8–1.3 3.1–4.7cm), (1992) for five times and their mean SE were recorded.
alternate, sessile, oblong or lanceolate, apex with tiny The total ash value was found to be maximum in stem
point and round, base is narrow, margin is entire. and minimum is leaf. The extracts of all in vivo (leaf, stem,
Leathery and minutely velvety on both surface. Flowers root) and in vitro (callus) plant samples were prepared
are 3.5 mm in diameter, purplish in color, ovoid in shape, with different organic solvents such as hexane, benzene,
arranged in corymbs at the end of branches. Roots are chloroform, ethylacetate, acetone, ethanol, methanol and
about 3-20 mm in diameter, 10 to 20 inches in length, water following WHO guidelines. The exhactives were
somewhat twisted and gradually tapering. The external determined five times and their mean SE was recorded.
surface is white when young while it is light to dark brown Water soluble extractive was found to be very high when
in mature one and the wood is brownish. External surface compared to other extractives17-20.
showed longitudinal rough striations, odour indistinct and
Fluorescence Analysis
fracture is short17.
The dried powdered Pluchea lanceolata plant samples
Microscopic Characters
(leaf, stem, root) was extracted with desired quantity of
Leaf different organic solvents (hexane, benzene, chloroform,
The transverse section passing through midrib of leaf of acetone, ethylacetate, ethanol and methanol) and after
Pluchea lanceolata reveals its isobilateral nature that has 24 hours fluorescence of each extractive was observed
upper and lower epidermis with thick circle, traversed and recorded in both day and UV light. This analysis
determines the constituents in the plant that gives a
with stomata. The leaf has both covering and granular
definite idea of the chemical nature18, 21, 22.
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Int. J. Pharm. Sci. Rev. Res., 52(1), September - October 2018; Article No. 24, Pages: 133-141 ISSN 0976 – 044X
test on mice and rats. The highest activity was found with ethyl-), -copaene, epi-cubebol and trans--
the hexane extract from which psi-taraxasterol acetate bergamontene identified (GC-MS). The experimental
was isolated as one of the active constituent10. results showed that hydrodistilate of Pluchea lanceolata
significantly inhibited anti-cholinesterase activity as
Neolupenol, a pentacyclic triterpene isolated from
compared to reference compound physostigmene. The
Pluchea lanceolata flowers was studied to determine its
study supported the use of Pluchea lanceolata for the
anti-inflammatory activity against carrageenin induced
management of neurodegenerative ailments like
rat-paw oedema. The degree of oedema inhibition was 49
Dimentia and Alzeimer’s disease .
found to increase with dose as well as time interval and
was found to be maximum at 300 min. Neolupenol when It has been investigated that the effect of major
administered at 100 mg/kg p.o. was found to exhibit 70% pentacyclic triterpene and its naturally occurring acetate
oedema inhibition which was greater than that of derivative isolated from Pluchea lanceolata as
reference compound ibuprofen (50 mg/kg. p.o., 65% lipopolysaccharide (LPS) stimulated neuro-inflammatory
30
inhibition and 300 min) . condition associated to inflammatory cytokine production
in rat astrocytoma cell line. The log concentration
The terpene sorghumol, sorghumol acetate, boehmerol
dependence of Pluchea lanceolata, taraxasterol
acetate, moretenol, moretenol acetate, neolupenol,
significantly (p < 0.05) attenuates the release of pro-
neolupeol and psi-taraxasterol acetate isolated from
inflammatory cytokines, which in situ produced acetyl
Pluchea lanceolata were subjected for anti-inflammatory
derivative, taxaxasterol acetate, did not inhibit the LPS
testing which exhibited significant anti-inflammatory and
induced IL-6 production at lower concentration (p < 0.05).
anti-arthritic activities in carrageenin induced paw-
The Surface-Dock molecular modeling study was also
oedema model in albino rats at 50 mg/kg p.o. dose
14,53,55 conducted to stimulate the binding capacity of
level .
compounds into the active site of the cytokines and
Pluchea lanceolata has been used in massage oil in proteins. The differential inhibition of cytokines by
traditional system of medicine. The plant Pluchea taraxasterol and taraxasterol acetate was further
lanceolata is extracted with different organic solvents viz. confirmed by high docking scores showing the hight
methanol, ethanol, petroleum ether and chloroform. The afinity to target proteins. The findings thus supported the
different extracts obtained are then boiled separately comparatively greater role of Pluchea lanceolata
with oil, till the solvent is completely evaporated. The oil triterpene than its in situ produced acetate derivative in
obtained from these solvent extracts was checked for its neuro-inflammation associated disorders59.
anti-inflammatory activity with carrageenin induced rat-
Antimalerial Activity
paw oedema. The prepared oil was compared with the
marketed sample of mahanarayan oil. The ethanolic oil The antimalerial activity of methanol, ethanol,
extract has shown to be having highly active anti – ethylacetate, chloroform and hexane extracts of Pluchea
inflammatory agent56. lanceolata together with taraxasterol acetate isolated
from hexane extract were tested. Hexane extract and
The anti-inflammatory activity was carried out by HRBC
taraxasterol acetate exhibited promising antimalerial
(Human Red Blood Cell) membrane stabilization method
activity in vitro and in vivo condition. Taraxasterol acetate
and anti-arthritic activity by the inhibition of protein
attributed in inhibition of the pro-inflammatory cytokines
denaturation method. The methanolic extract of all plant
as well as afford to significant increase in the blood
parts exhibited notable anti-inflammatory activity and
glucose and haemoglobin level when compared with
remarkable anti-arthritic action. The membrane
vehicle treated infected mice. In vitro and in vivo safety
stabilization was found to be maximum in leaves (86.8%
evolution study revealed that hexane extract is non-toxic
at dose of 1000 g/ml) and that of protein denaturation
at higher concentration. The study thus validated the
was also found to be maximum in leaves (70.85% at a
ancient Indian traditional use of Pluchea lanceolata as an
dose of 1000 g/ml) as compared to other in vivo (stem
antimalerial agent12.
and root) and in vitro (callus) plant parts. The study
supported the isolation and use of active constituents Anti-asthamatic activity
from in vivo and in vitro plant parts of Pluchea lanceolata
The anti-asthamatic potential of ethylacetate fraction was
in treating inflammations and rheumatism. The effect of
evaluated by in vitro animal model in isolated guinea pig
Pluchea lanceolata extracts on gynaecological disorders
tracheal chain preparation. The study was carried out
was also studied and found that the extracts exhibited
using dose 100 g/ml of ethylacetate fraction that
significant uterine relaxant activity57,58.
showed significant relaxant action against histamine
Neurological Activity induced contraction. The ethylacetate fraction showed
significant anti-asthamatic activity of 57.81 1.22 at the
Cholinesterase inhibitory activity of the essential oil of
Pluchea lanceolata was evaluated using mouse brain dose of 100 g/ml and can be used for its ant-asthamatic
homogenate. The major components of essential oil properties60.
were linalool, -coryophylline, -terpeneol, spathulenol,
linalylacetate, naphthalene-1, 6-dimethyl-4-(1-methyl
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© Copyright protected. Unauthorised republication, reproduction, distribution, dissemination and copying of this document in whole or in part is strictly prohibited.
Int. J. Pharm. Sci. Rev. Res., 52(1), September - October 2018; Article No. 24, Pages: 133-141 ISSN 0976 – 044X
enzymes and reducing chromatid breaks and micronuclii Acknowledgement: Thanks to Prof. V.B. Pandey,
67
formation . Department of Medicinal Chemistry, Institute of Medical
Sciences, Banaras Hindu University, Varanasi, for humble
Antioxidant activity
suggestions and compiling this review.
The antioxidant activity of methanolic and aqueous root
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