Review on Phytochemical and Pharmacological properties of Vitex trifolia linn

 

Dhanya Rajan*, J. Suresh, N. Paramakrishnan,   A. Sri Vasavi Reddy, M Nayeem

 

Department of Pharmacognosy, JSS College of Pharmacy, JSS University, SS Nagar, Mysore-570015, Karnataka

 

 

ABSTRACT:

Vitex trifolia Linn. belonging to the family of Verbenaceae is distributed throughout India in tropical and subtropical regions and has been used by the tribal people for various disorders in traditional and folk medicine. Height of the plant 1-3.5 meter. Flowers are appearing in summer or late summer, and 6-12 inch long. The preliminary phytochemical screening of various extracts of leaf revealed the presence of various phytoconstituents like carbohydrates, flavanoids, proteins, aminoacids, tannins, phytosterols, saponins essential oils, halimane type diterpenes, vitetrifolins .The plant is a component of a number of commercially available herbal formulations and has also shown  potential as an effective bio-control agent.  Leaves are considered as antiseptic, aromatic, febrifuge, anodyne, diuretic, emmenagogue and fruit as nervine, cephalic, emmenagogue, anthelmintic. Roots are used to treat febrifuge, painful inflammations, cough and fever. Flowers are used in treating fever and fruits in amenorrhoea  The plant is known to possess various active constituents like carbohydrate, phenolic compounds, flavonoids, protein and amino acids, tannins, phytosterols and saponins  The plant has been screened for the trypanocidal, antioxidant hepatoprotective, anti-inflammatory, antibacterial, antimicrobial, tracheospasmolytic anticancer, antimitotic   and wound healing activity. The present review is therefore, an effort to give a detailed survey of the literature on the phytochemical and pharmacological properties of Vitex trifolia

 

KEY WORDS: wound healing, anti inflammatory, haemostatic, Eupatorium odoratum

 

INTRODUCTION:

Vitex trifolia Linn. belonging to the family of Verbenaceae is commonly known as chaste tree (English), Nirnochi (Tamil) and jalanirgundi (Sanskrit) (fig1). Vitex trifolia is a shrub or small tree growing from 1 to 4 meters high, sometimes prostate or ascending in habit. Flowers are appearing in summer or late summer, and 6-12 inch long. Vitex trifolia is a large coastal shrub or small tree, less than 5 m in height with the stems covered by soft hairs (tomentose). Vitex trifolia L. has been used as an anti-inflammatory and sedative for headache, rheumatism and the common cold in Asian countries1.

 

VERNACULAR NAMES:

     Cook Islands - rara

     Tonga - lalatahi

     Samoa - namulega

     India:

     Sanskrit - Jalanirgundi; Sindhuka; Surasa; Vrikshaha

     Hindi - Nichinda; Panikisanbhalu; Sufed-sanbhalu

     Bengali - Paniki-shumbala; Pani-samalu

     Kannada - Nira-lakki-gida


     Malayalam - Lagondi; Nirnoschi

     Tamil - Nirnochchi; Shirunoch-chi

§  Telugu - Niruvavili; Shiruvavi

     Indonesia

     Indonesian - Legundi

     Bugi - Lawarani

 

TAXONOMY

Kingdom                Plantae

Division                 Angiosperms

Class                      Eudicots

(Unranked)           Asterids

Order                      lamiales

Family                    lamiaceae,verbeniaceae

Genus                    Vitex

Species                  V.trifolia

Binomial name     Vitex trifolia

 

HABIT AND HABITAT

Grows on sand, coral, pumice gravel or shale. It is occasionally found in clay over limestone but this is rare. It also grows on beaches and along the inland edge of mangrove swamps, in grasslands and in forest and secondary vegetations. It is often found near watercourses2.

 

CULTIVATION

Vitex trifolia grow well on exposed coastal sand dunes. It likes moist, fertile, well-drained soils. Water well in the summer and avoid the extremes of soil moisture, neither drought nor water logging. If propagating seeds, sow freshly collected seed in a mix of sand and coir. If propagating by cuttings, take them when the plants are not in flower or fruit (apical cuttings with at least two nodes). Cuttings should be rooted in a well-drained rooting medium such as perlite and coir under mist2.

 

PHARMACOGNOSTICAL STUDIES

MACROSCOPIC EVALUATION

The leaves are oppositely arranged along the stems and are usually compound, composed of 3 linear leaflets which range between 1 –12 cm in length. The upper surface of the leaves is green and the lower surface grayish green. Leaves are variable, some simple and some three foliolate; leaflets elliptic or oblongobovate, usually obtuse, the terminal leaflet sessile, 5-6.3 by 2.5-3.8 cm the lateral smaller, sessile, all glabrous above, very densely white-tomentose beneath, base tapering; common petioles 1.3-1.6 cm long. The leaves are dark green in colour and bitter taste. (fig 1)

 

The flowers are born in panicles or clusters up to 18 cm in length. Individual flowers have purple to violet two-lipped corollas that are approximately 5 mm long. The stamen are in two pairs and the ovary is superior, or develops above the corolla. The fleshy fruits are about 6 mm in diameter and contain 4 small black seeds. Corolla is hairy, lavender to blue. Tube is about 8 mm long, the larger central love of the lower lip has a white blotch at the base; limb is 12 mm in the greatest diameter. Fruit is rounded, 4 to 5 mm in diameter.

 

Fig. 1. The Leaves of Vitex trifolia

 

MICROSCOPIC EVALUATION

Leaflet: [Fig 2]

The leaflet has smooth and even adaxial surface and densely pubescent uneven abaxial side.It is 140 μm thick along the ridged part of the leaflet and 120 μm thick in between the ridges.The adaxial epidermis is thick and prominent; the epidermal cells are rectangular and tangentially oblong, fairly thick walled and have thin cuticle. These are a sub epidermal layer of dilated and hyaline squarish or cylindrical cells. The epidermal layer is 10 μm thick; the hypodermal layer is 15μm thick. The abaxial epidermis is narrow with thin walled cylindrical cells. They bear dense non glandular trichomes. The mesophyll consists of four layers of vertically elongated narrow cylindrical cells. The height of these cells is more along the firstrow and the height is reduced gradually towards the lower part. All these cells are palisade; and spongy parenchyma cells are not evident.

 

 

FIGURE 2: T.S of Lamina through Lateral Vein under Low Magnification

Anatomy of the Lamina:

The midrib is thick, projecting prominantly on the abaxial side with a short and wide adaxial hump. The epidermal layer is a narrow with small cells. The ground tissue of the midrib consists of circular thin walled compact parenchyma cells. The vascular system of the midrib has a median, wide arc-shaped strand and a group of adaxial accessory strands (Fig3). The median arc of vascular strand consists of several parallel rows of xylem elements with narrow parenchymatous space in between the xylem rows. In each row of xylem, these are about six cells which are angular and thick walled .The adaxial accessory bundles are circular and collateral. The strand has a small group of xylem elements and wide zone of phloem.

 

FIGURE 3:T.S of Leaf through Midrib with Lamina                                

[AbBAbaxial Bundle; AbSAbaxial Side; AdBAdaxial Bundle; AdHAdaxial Hump;

Ep-Epidermis; GT – Ground Tissue; Ph – Phloem; X – Xylem].

 

Anatomy of the Midrib:

Venation.

The venation pattern of the lamina shows uniformly thin and straight lateral veins. The veins are covered by hyaline parenchymatous bundle sheath cells (Fig4). The vein-islets are not well defined; they are open and not distinct. The vein-terminations are distinct; they are long, slender, straight or slightly bend and un branched. Stomata are located in the furrows of the abaxial epidermis. They are circular and are anomocytic type 3.

 

 

FIGURE 4: Paradermal Section Showing Vein- Islets and Vein-termination

USES

Plant pacifies vitiated vata, kapha, arthritis, inflammations, lumbago, headache, dyspepsia, colic, dysentery, wounds, ulcers, bronchitis, cough, hemorrhoids, dysmenorrhea and general debility.  The leaves are used to treat female ailments in the Cook Islands, and used to relieve fever in Samoa. Additionally in Samoa, the dried leaves are burned to deter mosquitos

. The fruits of this plant are called ``Viticis Fructus'' and are used as a folkmedicine for headaches, colds, migraine and eyepain Leaves considered antiseptic, aromatic, febrifuge, anodyne, diuretic, emmenagogue. Fruit considered nervine, cephalic4.

Folkloric
• Application of leaves 3 to 4 times daily provides relief for localized burning in the soles of the feet .   The leaves are heated in an earthen pot without the addition of water, then applied when sufficiently hot, and held in place by a bandage.
• Decoction of leaves used for aromatic baths.
• Decoction of roots is drunk for fever and after childbirth.
• In India, leaves used as anodyne, diuretic and emmenagogue.
• Leaves in fomentations and baths used for treatment of beri-beri and burning of the feet.
• Dry fomentation of leaves used for sprains, contusions and rheumatism. Infusions used for intermittent fevers with scanty urine, rheumatism and as febrifuge.
• In Malaya, leaves are ground with garlic, pepper, turmeric and boiled rice and made into pills and given for consumption.
• Used for headache, catarrh, watery eyes, and to promote growth of the beard.
• Used in treatment of breast cancer.
• Powdered fruit, sweetened or mixed with honey, or in decoction, used as nervine, cephalic and emmenagogue5.

  

Chemical constituents.

     Leaves yield essential oil and resin.  Fruit contains an acid resin, an astringent organic acid, malic acid, traces of an alkaloid, and coloring matter. Chemical studies of leaves and twigs yield an essential oil, 0.11 - 0.28 per cent. Chief constituents of the oil are l-d-pinene and camphene (55 %); terpinyl acetate (10 %); and a diterpene alcohol(20%).Study isolated a new benzofuran-type lignan, vitrifol A, from the fruits of V. trifolia with three known compounds.5

 

     The preliminary phytochemical screening of various extracts of leaf revealed the presence of various phytoconstituents like carbohydrates, flavanoids, proteins, aminoacids, tannins, phytosterols, saponins.

   

     An abietane-type diterpene, named vitetrifolin A, and two labdane-type diterpenes, named vitetrifolins B and C, were isolated from the acetone extract of the fruits of Vitex trifolia L. (Viticis Fructus; Verbenaceae) along with three known diterpenes, rotun-difuran, dihydrosolidagenone and abietatriene 3b-ol. The structures of these compounds were elucidated on the basis of spectro-scopic analysis, X-ray crystallographic analysis and chemical evidence.6

 

     Six flavonoids, persicogenin ( 1 ), artemetin ( 2 ), luteolin ( 3 ), penduletin ( 4 ), vitexicarpin ( 5 ) and chrysosplenol-D ( 6 ), have been isolated for the first time as new cell cycle inhibitors from Vitex trifolia L7.

 

     Trypanocidal constituents of the fruits of Vitex trifolia were investigated. Activity-guided isolation of the acetone extract resulted in the isolation of two new norditerpene aldehydes, 1 and 2, together with five known diterpenes:vitexifolin E (3), vitexifolin F (4), vitexilactone (5), 6-acetoxy-9-hydroxy- 13(14)-labden-16,15-olide (6), and previtexilactone (7)8.

 

PHYTOCHEMISTRY

Preparative isolation and purification of the active components from Viticis Fructus by high-speed counter-current chromatography.

For the separation  high-purity active components from the seeds of Vitex trifolia L,a two-phase solvent system composed of light petroleum-ethyl acetate-methanol-water (3:6: 3.6: 3, v/v/v/ v) were used. Within 230 min, 23 mg of 4-hydroxybenzoic acid, 15 mg of 3,6,7-trimethylquercetagetin, 24 mg of casticin and 5 mg of artemetin were obtained from 250 mg of the crude extract of Viticis Fructus in one-step elution under the conditions of a flow rate of 1.5 mL/min, 800 r/min and the detection wavelength of 254 nm. The purities of the four fractions were 93.1%, 97.3%, 98.7% and 98.5%, respectively. The obtained fractions were analyzed by high performance liquid chromatography (HPLC), and identified by electrospray ionization mass spectrometry (ESI-MS), 1H-nuclear magnetic resonance (NMR) and 13C-NMR. The results indicate that HSCCC is a powerful technique for the purification of active components from Viticis Fructus9.

 

Studies on the triterpenoids of Vitex trifolia

Five triterpenoids were obtained and identified as ursolic acid (I),2alpha,3alpha-dihydroxyurs-12-en-28-oic acid (II), betulinic acid (11), taraxerol (IV), 2alpha,3beta, 19-trihydroxyurs-12-en-28-oic acid (V) by chromatography and spectroscopic analysis10 .

 

Suggesting a derivative of isoindol-1-one from a Vitex species

A light yellow amorphous solid (compound A̲, 760 mg) were isolated from a silica column chromatography of the crude methanolic leaves extract of Vitex trifolia. It gave a thin layer chromatographic spot (TLC; Rf = 0.80 in chloroform: methanol = 80±20). In agreement with the preliminary Nuclear Magnetic Resonance spectrum (1H-NMR, 500 MHz, CDCl3, δH 3 – 12 ppm) and those reported in the literature, the main skeleton for this constituent might be a nitrogenous aromatic compound. The signal at δH 3.91 ppm indicates that carries a methoxy group. Meanwhile, the signals at δH 5.18 and δH 5.95 ppm shows the possibility of containing a hydroxyl and a phenolic group. Another two phenolic protons respectively resonate at δH7.30 and δH 7.81 ppm. A peak at δH 8.20 ppm would correspond to a proton of a secondary amine. Next, the peak at δH 11.37 ppm could be assigned either to an aldehyde group or to a phenolic having the intramolecular hydrogen bonding with a keto group at its β-position. It is suggested that could be a derivative of isoindol-1-one11.

 

PHARMACOLOGICAL STUDIES

Trypanocidal Activity :

Acetone extract of fruits of f plant showed potent trypanocidal activity against the epimastigotes of Trypanosoma cruzi,. In vitro minimum lethal concentrations of the isolated compounds against epimastigotes of Trypanosoma cruzi were 11mM (1), 36mM (2), 34mM (3), 34mM (4), 66mM (5), 66mM (6), and _265mM (7)8.

 

Hepatoprotective Activity

Chloroform extracts of Vitex trifoliata roots at 200, 400 and 800 mg/kg and silymarin was prepared and tested for its hepatoprotective effect against paracetamol induced hepatitis in rats. Alteration in the level of biochemical markers of hepatic damage like Serum glutamic oxaloacetic transaminase (SGOT) and serum glutamic pyruvic transaminase (SGPT), Alkaline Phosphatase (ALKP), Total bilirubin (TBL),Total cholesterol(CHL) , Total protein (TPTN) and while albumin(ALP) was tested in both treated and untreated groups. The Chloroform extracts of Vitex trifoliata roots at 200,400 and 800 mg/kg and silymarin showed a significant (P<0.05) decrease in all the elevated SGOT, SGPT, ALKP, TBL, CHL and significant increase (P<0.05) in TPTN and ALB levels produced by the toxicant Paracetamol12.

 

Wound healing activity.

The wound healing potency of ethanol leaf extracts of V. trifolia L. and V. altissima L. was evaluated in excision, incision and dead space wound models. Both plants were found to possess significant wound healing activity which was evidenced by a decrease in the period of epithelialization, an increase in the rate of wound contraction, skin breaking strength, granulation tissue dry weight, hydroxyproline content and breaking strength of granulation tissue. Of the two extracts, the ethanol leaf extract of V. trifolia showed maximum wound healing activity compared with the leaf extract of V. altissima13.

 

Anti inflammatory activity

The anti-inflammatory potential of an aqueous extract of Vitex trifolia leaves was evaluated by monitoring its effects on the modulation of cytokines, the mediators of inflammation,as well as on the expression profiles of inducible nitric oxide synthase (iNOS) which produces the free radical nitric oxide (NO). Aqueous extract of Vitex trifolia leaves showed significant dose- and time-dependent inhibitory activity on interleukin (IL)-1_, IL-6 and iNOS mRNA synthesis, but slight effect on tumor necrosis factor (TNF)-_, all of which are involved in the inflammatory response. Moreover, the plant extract seemed to induce the LPS-dependant IL-10 anti-inflammatory cytokine. These results were further confirmed by ELISA using specific antibodies to mouse IL-6, IL-10 and TNF14 .

 

Anti histaminic activity

Twelve alcoholic extracts and 12 hexane extracts of plant materials selected on the basis of medicinal folklore for asthma treatment in Indonesia were studied for their activity in inhibiting histamine release from RBL-2H3 cells (rat basophilic leukemia cell line), a tumor analog of mast cells. The results of screening indicated that five alcoholic extracts (Plantago major leaves, Eucalyptus globulus leaves and fruit, Cinnamomum massoiae cortex, Vitex trifolia leaves) and two hexane extracts (Eucalyptus globulus leaves, Vitex trifolia leaves) inhibited IgE-dependent histamine release from RBL-2H3 cells. The inhibitory effects were found to be more than 80% for extract concentrations of 0.5 mg:ml. The results indicate that the extracts contain active compounds that inhibit mast-cell degranulation, and provide insight into the development of new drugs for treating asthma and:or allergic disease15.

 

Anti bacterial activity

Antibacterial activity of petroleum ether and ethanol extracts of Vitex trifolia leaves were evaluated by disc diffusion technique and both the extracts exhibited moderate inhibiting activity against both gram-positive and gram-negative bacteria16.

 

Antioxidant activity

The methanolic and chloroform extracts of Vitex trifoliata roots were tested for its free radical scavenging property using different in vitro models like  superoxide radicals, hydroxyl radicals, lipid peroxidation, DPPH radical activities. The IC50 values for superoxide radical with chloroform and methanolic extracts of Vitex trifoliata were found to be 191.41 μg, 249.32 μg. The IC50 values for hydroxyl radical with chloroform and methanolic extracts of Vitex trifoliata were found to be 290.12 μg, 348.50 μg. The IC50 values for inhibition of lipid peroxidation activity with chloroform and methanolic extracts of Vitex trifoliata were found to be 262.30 μg, 310.72 μg. The IC50 values for DPPH radical with chloroform and methanolic extracts of Vitex trifoliata were found to be 122.20 μg, 169.32 μg17.

 

Anti cancer activity

The inhibitory effect of vitexicarpin on the proliferation of human cancer cells was evaluated by the SRB method and its apoptosis-inducing effect was demonstrated by morphological observation under light microscope, flow cytometric analysis and agarose gel electrophoresis. The proteins related to apoptosis were examined by Western blotting analysis. Vitexicarpin significantly inhibited the proliferation of human cancer cells, A2780, HCT-15, HT-1080 and K562, with the IC_50 values of (19.1±2.4) μmol·L-1 for A2780 (48 h), (0.66±0.10) μmol·L-1 for HCT-15(48 h), (0.44±0.06) μmol·L-1 for HT-1080 (48 h) and (0.28±0.14) μmol·L-1 for K562 (24 h). The cells treated with vitexicarpin showed characteristic morphology typical for apoptosis and gave dose-dependent sub-G_0/G_1 peak in the flow cytometric analysis and DNA ladder on agarose gel electrophoresis. In Western blotting analysis, the cleavage of PARP and caspase-3, the release of cytochrome c from mitochondria into the cytosol, the decrease of Bcl-2 expression level, and the down-regulation of the ratio of Bcl-2/Bax expression level were examined in the K562 cells treated with vitexicarpin7.

 

Anti tumor activity

The antitumor effects of flavonoids isolated from Viticis Fructus, casticin, artemetin, quercetagetin and 5,3′-dihydroxy-6,7,4′ -trimethoxyflavanone were studied. Casticin inhibited the growth of KB cells markedly (IC50=0.23 μM), compared with the other flavonoids tested (IC50=15.3–18.6 μM). In contrast, casticin did not inhibit the proliferation of A431 cells similar to normal cell lines, 3T3 Swiss Albino and TIG-103. Flow cytometric analyses revealed that the exposure of KB cells to casticin led to significant arrest at G2-M. In immunostaining of KB cells, casticin disrupted mitotic spindles. These results suggest that G2-M arrest by casticin may be relevant to its antimitotic activity, although the mechanism of selective growth inhibition has been unknown18.

 

Larvicidal activity

The early fourth instar larvae of Culex quinquefasciatus, were used for larvicidal assay with leaf extracts of Vitex negundo, Vitex trifolia, Vitex peduncularis and Vitex altissima. The methanol extracts of the four species possessed varying levels of larvicidal nature. The highest larvicidal activity was found with the extract of V. trifolia (LC50=41.41 ppm)followedby V.peduncularis (LC50=76.28 ppm), V.altissima (LC50=128.4 ppm)and V.negundo (LC0=212.57 ppm)19.

 

Insect growth regulatory activity

Essential oils of Vitex trifolia and Vitex agnus-castus were evaluated against Vth instar larvae of Spilosoma obliqua, when applied topi cally on the dorsal side of mesothoracic region, for insect growth regulatory activity caused extended larval period and pupal period, increase in larval mortality and adult deformity and decrease in adult emergence, fecundity of female and egg fertility of test insect. Culture of S. obliqua was maintained at 28 + 2 °C and relative humidity 70 + 5%. The larvae were fed on fresh castor leaves (Ricinus communis). Final instar larvae of S. obliqua were treated tropically with the respective amounts (0.5, 1.0, 1.5, 2.0 and 2.5 μl) of essential oils, on the ventral side of the meso-thoracic region using 25.0 μl precalibrated Hamilton syringe. For each treatment 30 larvae were treated and equal number of larvae treated with acetone served as control. After topical application the larvae were placed in pre-sterilized plastic jars (250 ml capacity), each jar having ten larvae and provided with fresh caster leaves as food. The mortality of larvae ranged from 25% to 75%, when S. obliqua larvae were treated with essential oil of V. trifolia compared to control (4.13%)20.

 

CONCLUSION:

Vitex trifolia have several pharmacological properties like, antipyretic, antibacterial, against asthma and allergic diseases. The main chemical constituents in it are carbohydrates, flavanoids, proteins, amino acids, tannins, phytosterols, saponins. Hence in this review article, effort has been taken to collect and compile the details regarding Vitex trifolia which will be useful to the society to venture in to a field of alternative systems of medicine.

 

REFERENCES:

1.     Nadkarni KM. Indian materia medica. Bombay Popular Prakashan. Bombay. 1976, pp: 1281 .

2.     www.kew.org/plants-fungi/Vitex-trifolia.htm

3.     S.Thenmozhi et al. Pharmacognostical and phytochemical investigation on leaves of Vitex trifolia linn. Journal of Pharmacy Research 2011,4(4),1259-1262

4.     GRIN Species Records of Vitex"Germplasm Resources Information Network. United States Department of Agriculture. Retrieved 2010-12-12

5.     www.stuartxchange.org/Lagunding-dagat.html

6.     Masateru Ono et al .Diterpenoids from the fruits of Vitex trifolia. Phytochemistry 55 (2000).

7.     Wen-Xin et al Flavonoids from Vitex trifolia L. inhibit cell cycle progression at G2/M phase and induce apoptosis in mammalian cancer cells . Journal of Asian Natural Products Research, Volume 7, Number 4, August, 2005 , pp. 615-626(12).

8.     Fumiyuki K.et al  New Norditerpenoids with Trypanocidal Activity from Vitex trifolia .Chem. Pharm. Bull. 52(12) 1492—1494 (2004) Vol. 52, No. 12.

9.     Guan R, et al. Preparativ e isolation and purification of the active components from Viticis Fructus by high-speed counter-current chromatography. Chinese Journal of chromatography ;2010 Nov;28(11):1043-7.

10.   Chen YS et al Studies on the triterpenoids of Vitex trifolia. Journal of Chinese Medicinal materials; 2010 Jun;33(6):908-10.

11.   Iskandar F et al .Suggesting a derivative of isoindol-1-one from a Vitex species. Science and Social Research (CSSR),  Dec. 2010 ; page: 160 – 162.

12.   V.Sreedhar et al. Hepatoprotective Activity of Vitex trifoliata roots against Paracetamol-Induced Hepatic Injury in rats. Journal of Pharmacy Research 2011,4(2),551-553 .

13.   Manjunatha, B. K., Vidya, S. M., Krishna, V., Mankani, K. L., Singh, S. D. J. and Manohara, Y. N. (2007), Comparative evaluation of wound healing potency ofVitex trifolia L. and Vitex altissima L.Phytotherapy Research, 21: 457–461.

14.   Mariko  et al. Characterisation of the anti-inflammatory potential of Vitex trifolia L. (Labiatae), a multipurpose plant of the Pacific traditional medicine. Journal of Ethnopharmacology 126 (2009) 427–4

15.   Zullies  et al  Screening of several Indonesian medicinal plants for their inhibitory effect on histamine release from RBL-2H3 cells. Journal of Ethnopharmacology 75 (2001) 249–256.

16.   Hossain M.M. et al .Antibacterial activity of Vitex trifolia. Fitoterapia 72 (2001). 695_697

17.   V Sreedhar  et al . In-vitro antioxidant activity and free radical scavenging potential of roots of Vitex trifoliate. Research Journal of Pharmaceutical, Biological and Chemical Sciences 2010 . Page No. 1036.

18.   Kobayakawa, J., Sato-Nishimori, F., Moriyasu, M., Matsukawa, Y  G2-M arrest and antimitotic activity mediated by casticin, a flavonoid isolated from Viticis Fructus (Vitex rotundifolia Linne fil.). . Cancer Lett. (2004) volume 208, Issue 1, pages 59-64.

19.   Krishnan KannathasanHYPERLINK "http://www.springerlink.com/content/?Author=Annadurai+Senthilkumar" \o "View content where Author is Annadurai Senthilkumar"Annadurai Senthilkumar, Manivachagam Chandrasekaran Venugopalan Venkatesalu. Differential larvicidal efficacy of four species of Vitex against Culex quinquefasciatus larvae. Parasitology Research, Vol 101, Number 6, 1721-1723.

20.   Shishir Tandon , Ashutosh K. Mittal, A.K. Pant . Insect growth regulatory activity of Vitex trifolia and Vitex agnus-castus essential oils against Spilosoma oblique. Fitoterapia. 79 (2008) 283–286 .

 

 

Received on 14.01.2012

Modified on 01.02.2012

Accepted on 12.02.2012

© A&V Publication all right reserved

Research Journal of Pharmacognosy  and Phytochemistry. 4(2): March-April  2012, 124-129