Phytochemical And Anti-Inflammatory Properties Of Methanol Extract Of Crateva Adansonii Stem Bark
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You are reading project material titled: Phytochemical And Anti-Inflammatory Properties Of Methanol Extract Of Crateva Adansonii Stem Bark
Table of Contents
1.2 Crateva Adansonii as a Plant
1.4 Scientific Classification
1.6 Research Aim and Objectives
1.7 Background of Study
2.0 Definition of Inflammation
2.1 Principle of Inflammation
2.2 Types of Inflammation
2.3 Categories of Inflammation Mediated by the Immune System
2.4 Mediators of Inflammation
2.5 Histamine and Serotonin
2.6 The Coagulation Mechanism
2.8 The Kinin – Forming System
2.9 Inflammation and Diseases
2.10 Ways of Treating Inflammation
2.11 Immune Selective Anti-inflammatory
2.12 The Use of Herbs in the Treatment of Inflammation
2.13 Anti-Inflammatory Drugs
3.1.1 Equipment/Apparatus Used
3.1.2 Animal Used
3.2.3 Preparation of Reagents for Phytochemical
3.2.3 Phytochemical Analysis of the Extract
3.2.5 Test for Alkaloide
3.2.6 Test for Saponin
3.2.7 Test for Terpenoids
3.2.8 Test for Anthraquinones
3.2.9 Test for Coumarins
3.2.10 Test for Phlobatannins
3.2.11 Test for Flavonoids
3.2.12 Test for Tannins
3.2.13 Test for Saponin
3.2.14 Test for Resins
3.2.15 Test for Steroids and Terpenoids
3.2.16 Test for Glycoside
3.2.17 Preparation of Reagents for Anti-Inflammatory Test
3.2.18 Test for Anti – Inflammation Activity
3.2.19 Thin layer Chromatorgaphy (TLC)
3.2.20 How to Run A TLC Plate
4.1 Photochemical analysis of Crateva Adansonii Bark Extract-74
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Inflation is a Latin word (inflammare) which is translated means to set on fire. It is a complex biological response of vascular tissue to harmful stimuli such as pathogens, damaged cells irritant. Inflammation is the reaction of vascularized tissue to local injury caused by certain stimuli like infections, chemicals and biochemical agents, thermal or other physical trauma, antigen-antibody interaction etc (Carol, 1994). Without inflammatory response, wounds will not heal and minor infections would be over weening. Though inflammation aims at limiting damage and restoring function, some enzymes and toxic products within phagocytic cells are released to the extend of damaging the tissue. The advent of anti-inflammatory agents has made inflammation which as been a threat to human life due to its complex, multicontent, to loose its power. These anti-inflammatory agents or drugs help reduce, pain by inhibiting inflammation as opposed to opioids, which affects the central nervous system. It also prevent repairs, prevent and stop the consequences of inflammation by acting on the body responses without directly antagonizing the causative agent (Stedman, 2000). These anti-inflammatory process involves the process of balancing pro-inflammatory acute-phase reactants (Russell et al. 2000), altering biochemical pathway
forming prostaglandins by inhibiting cyclooxygenase enzyme from catalyzing the reaction, as a result, suppress, compensate and correct the mechanical and structural abnormalities by assistive device. (Masumoto et al.2009).
The inflammatory reaction is phylogenetically and ontogenetically the oldest defense mechanism. The cells of immune system are widely distributed throughout the body, but if an infection or tissue damage occurs. It is necessary to concentrate them and their products at the site of damage.
Three major events occurring during this response:
1. An increased blood supply to the damaged tissue . It is performed by vasodilation. The inflamed tissue look like containing greater number of vessels.
2. Increased capillary permeability caused by retraction of the endothelial cells. This permits larger molecules than usual to escape from the capillaries, and thus allows the soluble mediators of immunity to reach the site of inflammation.
3. Leukocytes migrates out of the capillaries into the surrounding tissues. In the earliest stages of inflammation, neutrophils are particularly
prevalent, but later monocytes and lymphocytes migrate towards the site of infection (Ashcroft et al.1999).
For the possibility of surrounding tissue damage, inflammatory responses must be well ordered and controlled. The body must be able to act quickly in some situations, for example to reduce or stop the lost of blood, whereas tissue repair can begin later. Therefore a wide variety of interconnected cellular and humoral (soluble) mechanisms are activated when tissue damage and infections occur. On the other hand, if injury is negligible, the body must have mechanisms which are able to stop tissue damage when the agent is removed. The development of inflammatory reactions is controlled by cytokines, products of plasma enzymes (complement, the coagulation clotting, kinin and fibrolytic pathways), by lipid mediators (prostaglandin and leukotrienes) released from different cells/ and by vasoactive mediators from the mast cells, basophils and platelets. These anti-inflammatory reactions differ. Fast-acting mediators such as vasoactive amines and the product of the kininsystem, modulate the immediate response. Later, newly synthesized mediators such as leukotrienes are involved in the accumulation and activation of other cells. However, in inflammatory reactions initiated by the immune system, the ultimate control is exerted by the antigen itself in the same ways it controls the immune response itself. For this reason, the
cellular accumulation at the site of chronic infection or auto-immune reactions where antigen cannot ultimately be eradicated, is quiet different from the sites were antigenic stimulus can be rapidly cleared.
The nervous system can also participate in the control of inflammation especially axon reflexes, but inflammation may be realized in non-nervous tissues as well.
Inflammation may become chronic in certain settings where the acute process characterized by neutrophil infiltration and swelling gives way to predominance of mononuclear phagocytes and lymphocytes.This probably occurs to some degree with the normal healing process but becomes exaggerated and chronic when there’s ineffective elimination of foreign materials as in certain infections (e.g tuberculosis) or following introduction of foreign bodies (example asbestos) or deposition of crystals (example urate crystals). Chronic inflammation is often associated with fussion of mononuclear cells to form multinucleated gigantic cells, which eventually become granuloma. Chronic inflammation is seen under of delayed hypersensitivity (Nathan, 2002).
1.2 CRATEVA ADANSONII AS A PLANT
The flowering tree crateva religiosa (syn crateva adansonii) is called the sacred garlic pear and temple plant, and many other names in a variety of dialets, including Balai, lamok, abiyuch, barna, varuna and bidasi. The tree is sometimes called the spider tree because the showy flower bear long, spidery stamens. It is native to Japan, Australia, much of South East Asia and several South east Asia and several South pacific islands. It is grown elsewhere for fruit especially in part of African continent.
The crateva adansonii plant is a moderate sized, spreading unarmed, deciduous tree growing to a height of 15 meters. Bark is grey, the wood yellowish-white turning light brown when old. Leaves are clustered at the end of the branchlets with a common petiole 5-10 centimeter long, at the summit of which are three leaflets. Leaflets are ovate-lanceolate or ovate 7.5-12 centimeter long, 4-6 centimeter wide. Pointed at the base rather slender pointer at the tip. Flower occur in terminal corymbs, about 5 centimeters in diameter, greenish yellow, and at length purplish.
Petals are ovate or oblong with the claw haft as long as the limb. Fruit is ovoid or rounded, 3-5 centimeter in diameters, with a hard and rough rind.
Seeds are about 10 centimeter in length, numerous kidney-shaped, and embedded in a yellow pulp.
1. In waste places, along streams and in thickets near the sea.
2. Occurs in India, Myanmar, Sri lanka, Malasia, Indonesia and
China. (nature serve. 2011).
3. Sometimes planted as ornamentals tree for its beautiful flower.
1.4 SCIENTIFIC CLASSIFICATION
Sub- class: Rosids
Species: C. reliigiosa
The constituents of the plant have been assessed overtime and it has been found in various parts of the plants to contain:
Bark yield tannin.
Phytochiemicals screening of extract of dried leaves yielded allcaloids, carbohydrates, tannin, flavonoids, resins, proteins, oils, steroids and terpenoids.
Generally considered diuretic, anti-inflammatory, laxative, anti-oxidant, hepatoprotective, antilithics, antirheumatic, antiperiodic, contraceptive, anthelmintic.
Bark has a disagreeable smell, the taste slightly bitter, bitting and pungent. Leaves considered stomachic and tonic.
Roots and bark considered laxative, lithotriptic and alternative, promoting appetite and increasing biliary sections.
Leaves are rubifacient, tonic and febrifugal.
1.6 RESEARCH AIM AND OBJECTIVES
This research aim at investigating the anti-inflammatory properties of methanol extract of crateva adasonii stem bark. And as objectives, to compare the therapeutic potential, (i.e. anti-inflammatory effect ) of the methanol extract of crateva adansonii bark against the experimental standard indomethacin.
1.7 BACKGROUND OF STUDY
The plant crateva adansonii also known as or also called sacred garlic pear and temple plant. Apart from its medicinal properties which allows the plants to be used as laxative, it is also an edible plant especially the fruits,
berry and young shoot. The plant is used in herbal treatment of tympanites, convulsion, treatment of fever, rheumatism, urinary calculi etc.
Crateva adansonii is capable of suppressing the free radicals, production, it is been suggested to have anti-inflammatory properties which counter the synthesis of inflammatory mediators thus forming the background of this research.
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