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Steffi Christy S et al. / Asian Journal of Research in Biological and Pharmaceutical Sciences. 3(3), 15, 95-12. Research Article ISSN: 2349 4492 Asian Journal of Research in Biological and Pharmaceutical Sciences Journal home page: www.ajrbps.com IN-VIVO CYTOTOXIC ACTIVITY OF TERMINALIA ARJUNA LEAF EXTRACTS USING BRINE SHRIMP (ARTEMIA SALINA) AND PHYTOCHEMICAL SCREENING S. Ravichandran 2, S. Steffi Christy 1 *, T. Mani Prabhakaran 1, R. Muthukumar 1, P. Essly Selva Jasmine 1, J. Farzana Siraj 1, S. Selvakumar 2 1* Department of Pharmacology, Sri Ram Nallamani Yadava College of Pharmacy, Tenkasi, Tamil Nadu, India. 2 Department of Pharmaceutical Chemistry, Sri Ram Nallamani Yadava College of Pharmacy, Tenkasi, Tamil Nadu, India. * 1 Department of Medicinal Chemistry, Faculty of Pharmacy, Zagazig University, Zagaz ABSTRACT The phytochemical study and cytotoxic potential of the leaves of Terminalia arjuna were investigated. The extraction was based on solvents of increasing polarities such as petroleum ether, chloroform, ethanol and aqueous. Preliminary phytochemical analysis indicates the presence of carbohydrates, saponins, steroids, tannins, proteins and phenolic compounds. The Brine Shrimp Lethality Assay (BSLA) of the extracts was carried out to detect possible cytotoxic effects of the plant leaves. In vivo cytotoxicity was evaluated in terms of LC 5. The extracts were potent against the brine shrimp with LC 5 value of petroleum ether, chloroform, ethanol and aqueous extract were 11.22 µg/ml, 22.38 µg/ml, 3.19 µg/ml and 17.78 µg/ml respectively compared to vincristine sulphate, a reference drug, LC 5.52 µg/ml. The overall result indicates the presence of bioactive components in the all leaves extracts which could account for the reported pharmacological effects of the plant. KEYWORDS Terminalia arjuna leaves, Phytochemical investigation, Brine shrimp lethality assay, Cytotoxicity and LC 5. Author for Correspondence: S. Steffi Christy, Department of Pharmacology, Sri Ram Nallamani Yadava College of Pharmacy, Tenkasi, Tamilnadu, India. Email: steffipharma@gmail.com INTRODUCTON Terminalia arjuna (Combretacae) is commonly known as Arjuna. The large evergreen tree is distributed throughout the greater part of Indian peninsula along rivers, streams, ravines and dry watercourses. It is basically a tropical species. It grows almost in all red lateritic soils. It grows in low land to hilly areas and it can tolerate half submergence for a few weeks. It is also planted for shade and decoration in avenues or parks. Terminalia arjuna is usually an evergreen tree Available online: www.uptodateresearchpublication.com July - September 95

with new leaves appearing in the hot season (February to April) before leaf fall. Tree sometimes may be leaflets for a very short period before flowering. Fruit bearing begins 6-7 years after planting. For centuries, Terminalia arjuna have been used by folk healers throughout India in various Indigenous System of Medicine like Ayurveda, Siddha and Unani as astringent, cooling and diuretic in cirrhosis 1. Various parts of these plants have claimed to be effective in a wide range of diseases 2. The scientifically stated therapeutic properties for Terminalia arjuna have been reported to be used as anti-inflammatory, induction of apoptosis 3, cardio tonic, in fractures, antioxidant 4, ulcers, spermatorrhoea, leucorrhoea, diabetes, antifungal 5, cough, anti-allergenic 6, tumour, excessive perspiration, diarrhoea, asthma, diseases of heart, congestive heart failure 7, hypertension 8, anaemia, skin disorders, antineoplastic 9, gynaecological complaints, bacterial infections and urinary disorders. It is also believed to have the ability to cure hepatic, urogenital, venereal and viral diseases 1. These observations prompted us to screen the cytotoxic activity by using the Brine Shrimp Lethality Assay (BSLA) method; it is based on the ability to kill laboratory-cultured Artemia nauplii brine shrimp. This BSLA is considered a useful tool for preliminary assessment of toxicity, developing antitumor agents and it has been used for the detection of fungal toxins and plant extract toxicity 11. MATERIALS AND METHODS Plant Material The leaves were collected from the branches of Terminalia arjuna (Roxb) in Alangulam, Tirunelveli District, Tamilnadu, India, during February 15. The plant material i.e., leaf of Terminalia arjuna (Roxb) was then identified and authenticated. PREPARATION OF EXTRACTS The extraction is the preliminary step involved in the phytochemical studies 12 and it is performed with solvents of increasing order of polarity. The dried, coarsely powdered Terminalia arjuna leaves (25gm) were first extracted with petroleum ether (5º-6ºC) in Soxhlet apparatus for 72 hrs, the petroleum ether extract was concentrated to a crude residue mass by using vacuum distillation. The marc obtained was dried in oven at 4ºC and extracted with chloroform (5º-6ºC) for 72 hours, followed by the extract was concentrated to get a dry crude residue mass by using vacuum distillation. Then the marc obtained was dried in oven at 4ºC and then extracted with ethanol (75º- 8ºC) for 72 hours, followed by the extract was concentrated to a crude residue mass by using vacuum distillation. Finally the marc obtained was dried in oven at 4ºC and extracted with aqueous water for 72 hrs, followed by the extract was concentrated by vacuum distillation to get a crude residue mass. EVALUATION OF CYTOTOXIC ACTIVITY Brine Shrimp Lethality Assay (BSLA) This screening method used to detect and then monitor the fractionation of cytotoxic potency using brine shrimp rather than expensive in-vitro and in-vivo antitumor assays. The brine shrimp assay has advantages of being rapid (24 hours), inexpensive and simple (e.g., no aseptic techniques are required) 13. The basis of this method is to evaluate cytotoxicity in terms of LC 5 (lethality concentration). The test was carried out in three replicates of the concentration of the extracts and surviving brine shrimp were recorded after 24 hours 14. About 1 gram of Artemia salina (Linnaeus) cysts were hatched in 1 litre capacity glass cylinder (jar) containing filtered artificial seawater prepared from commercial sea salt 4g/litre and supplemented with 6 mg/litre dried yeast. The air pump was fitted to the water to ensure complete aeration of the cysts. After 48 hours of incubation at room temperature (25-29 C) under continuous illumination of fluorescence lamp, newly hatched freeswimming pink-colored nauplii were harvested from the bottom outlet. As the cyst capsules floated on the surface, this collection method ensured pure harvest of nauplii. The freshly hatched free-swimming nauplii were used for the bioassay. The test samples (Pet. ether, chloroform, ethanol and aqueous extracts) were prepared by dissolving in dimethylsulphoxide (DMSO), (not more than 5µl in 5ml solution) and artificial sea water to make concentration 6.25µg/ml, 12.5µg/ml, 5µg/ml, 1µg/ml, µg/ml, and Available online: www.uptodateresearchpublication.com July - September 96

4µg/ml. A vial containing 5µl DMSO diluted to 5ml was used as a control. Standard Vincristine sulphate was used as positive control. Then 1 matured alive shrimps were introduced into each of all RESULTS AND DISCUSSION In the present investigation, the phytochemical screening has been done in various solvent extracts of Terminalia arjuna leaves extracts and the results are experimental vials containing solution of presented in Table No.1. The leaves powder with concentrations 6.25µg/ml, 12.5µg/ml, 5µg/ml, various chemical reagents showed the presence of 1µg/ml, µg/ml, 4µg/ml prepared from Pet. ether, Chloroform, Ethanol and Aqueous extracts of the leaves of plant Terminalia arjuna. Thus, there were a total of 3 shrimps per dilution. Then the volume carbohydrates, saponins, steroids, tannins, proteins and phenolic compounds. The petroleum ether extract showed the presence of steroids, saponins, glycosides, tannins, phenolic compounds and terpenoids. The was adjusted with artificial sea water up to 5ml per chloroform extract showed the presence of vial. The test tube was left uncovered under the lamp. After 24 hours, the vials were inspected using a magnifying glass and the number of dead nauplii in each vial was counted and recorded. The mortality end point of this bioassay was defined as the absence of control forward motion during 3s observation. The percentage mortality (%M) was calculated by dividing the number of dead nauplii by the total number, and then multiplied by 1%. This is to ensure that the death (mortality) of the nauplii is attributed to the bioactive compounds present in the plant extract. From this data the percent of the lethality of the brine shrimp nauplii for each concentration and control was calculated. An approximate linear correlation was observed when logarithm of concentration versus percentage of mortality was plotted on the graph paper and the values of LC 5 were calculated using Microsoft Excel 7 15. carbohydrates, saponins, steroids, tannins, phenolic compounds and terpenoids. The ethyl alcohol extract showed the presence of carbohydrates, glycosides, saponins, steroids, tannins and phenolic compounds. The aqueous water extract showed the presence of carbohydrates, saponins, steroids, phenolic compounds and tannins. The four different extracts of Terminalia arjuna leaves were tested and exhibited good brine shrimp larvicidal activity. LC 5 value of petroleum ether, chloroform, ethanol and aqueous extract were 11.22 µg/ml, 22.38 µg/ml, 3.19 µg/ml and 17.78 µg/ml respectively compared to vincristine sulphate, a reference drug, LC 5.52 µg/ml. Among all four extracts, the petroleum ether has more cytotoxic potential. Moreover, the chloroform and aqueous water extracts also endowed with considerable moderate activity. Among this ethanol extract only exhibited weak activity. The results are depicted in Table No.2-5 and Figure No.1-6. Table No.1: Preliminary phytochemical screening of the dried powdered material and various extracts of the Terminalia arjuna leaves S.No Chemical Constituents Powder Petroleum Ether Chloroform Ethanol Aqueous 1 Carbohydrates + - + + + 2 Alkaloids - - - - - 3 Steroids + + + + + 4 Glycosides - + - + - 5 Saponins + + + + + 6 Flavonoids - - - - + 7 Tannins + + + + + 8 Phenolic Compounds + + + + + 9 Proteins + - - - - 1 Amino acids - - - - - 11 Mucilages - - + - - 12 Terpenoids - + + - - +ve indicates presence of respective constituents; -ve indicates absence of respective constituents Available online: www.uptodateresearchpublication.com July - September 97

S.No Steffi Christy S et al. / Asian Journal of Research in Biological and Pharmaceutical Sciences. 3(2), 15, 87-94. Table No.2: Brine Shrimp Lethality Assay for the petroleum ether extract of Terminalia arjuna leaves Number of Total surviving nauplii number of % after 24 hours survivors Mortality Terminalia arjuna Extract 1 Pet. ether Concentration (µg/ml) T 1 T 2 T 3 6.25.7959 7 6 7 33.3 12.5 1.969 5 7 5 17 43.3 25 1.3979 3 2 3 8 73.3 5 1.699 1 2 1 4 86.6 1 2 1 2.31 1 4 2.621 1 LC 5 Value Table No.3: Brine Shrimp Lethality Assay for the chloroform extract of Terminalia arjuna leaves Number of S.No Terminalia arjuna Concentration surviving nauplii Total % LC 5 extract (µg/ml) after 24 hours number of Mortality Value T 1 T 2 T 3 survivors 6.25.7959 7 8 8 23 23.3 12.5 1.969 6 5 7 18 4 25 1.3979 4 6 5 15 5 1 Chloroform 5 1.699 3 5 2 1 66.6 22.38 1 2 2 2 1 5 83.3 2.31 1 4 2.621 1 11.22 Table No.4: Brine Shrimp Lethality Assay for the ethanolic extract of Terminalia arjuna leaves Number of Total S.No Terminalia arjuna Concentration surviving nauplii % number of extract (µg/ml) after 24 hours Mortality survivors T 1 T 2 T 3 6.25.7959 7 9 8 24 12.5 1.969 5 7 8 33.33 25 1.3979 4 7 6 17 43.33 1 Ethanol 5 1.699 3 6 4 13 56.66 1 2 2 1 3 6 8 2.31 1 4 2.621 1 LC 5 Value 3.19 Available online: www.uptodateresearchpublication.com July - September 98

Table No.5: Brine Shrimp Lethality Assay for the aqueous water extract of Terminalia arjuna leaves S.No Terminalia arjuna extract 1 Aqueous (Water) Concentration (µg/ml) Number of surviving nauplii after 24 hours T 1 T 2 T3 Total number of survivors % Mortality 6.25.7959 8 7 6 21 3 12.5 1.969 7 7 5 19 36.66 25 1.3979 5 4 2 11 63.33 5 1.699 4 4 1 9 7 1 2 2 1 1 4 86.6 2.31 1 4 2.621 1 LC 5 Value 17.78 1 1 8 6 4 Pet.Ether of Pet.Ether) 1 2 3 log C Figure No.1: Determination of LC 5 value for the petroleum ether extract of Terminalia arjuna leaves, Linear correlation between oncentrations versus percentage mortality 1 1 8 6 4 Chloroform of Chloroform) 1 2 3 logc Figure No.2: Determination of LC 5 value for the chloroform extract of Terminalia arjuna leaves, Linear correlation between oncentrations versus percentage mortality Available online: www.uptodateresearchpublication.com July - September 99

1 1 8 6 4 Ethanol Extract of Ethanol Extract) 1 2 3 Figure No.3: Determination of LC 5 value for the ethanolic extract of Terminalia arjuna leaves, Linear correlation between oncentrations versus percentage mortality 1 1 8 6 4 Aqueous of Aqueous) 1 2 3 log C Figure No.4: Determination of LC 5 value for the aqueous extract of Terminalia arjuna leaves, Linear correlation between oncentrations versus percentage mortality 1 1 8 6 4 1 2 3 log C Pet.Ether Chloroform Ethanol Aqueous of Pet.Ether) of Chloroform) Figure No.5: Determination of LC 5 value for the petroleum ether, chloroform, ethanolic and aqueous water extracts of Terminalia arjuna leaves, Linear correlation between oncentrations versus percentage mortality Available online: www.uptodateresearchpublication.com July - September 1

35 3 25 LC 5 15 1 5 1 2 3 4 Pet.Ether Chloroform Ethanol 11.22 22.66 3.57 Aqueous 18. Figure No.6: Comparison of LC 5 values of petroleum ether, chloroform, ethanolic and aqueous water extracts of the Terminalia arjuna leaves CONCLUSION The phytochemical screening of the Terminalia arjuna leaves are exhibited the presence of various phytochemical constituents such as, saponins, steroids, tannins and phenolic compounds. The leaves extracts of Terminalia arjuna exhibit cytotoxic activity against the brine shrimp. The cytotoxic activity against the brine shrimp are considered as containing the active or potent components because of their LC 5 values are less than 1µg/ml. Various extracts of the leaves of the plant possess LC 5 value less than 1µg/ml and therefore they are present to have curative properties against several pathogens. Although, BSLA is inadequate in determining the mechanism of action of the bioactive substances in the plant, it is very useful by providing a preliminary screen that can be supported by a more specific bioassay once the active compounds has been isolated. Thus, some useful antitumor or anti-proliferative drugs of therapeutic importance may develop out of the research work. ACKNOWLEDGEMENT The authors are sincerely thankful to the management of Sri Ram Nallamani Yadava college of Pharmacy, Tenkasi, Tirunelveli, Tamilnadu, India for providing the facilities to carry out this research work. CONFLICT OF INTEREST We declare that we have no conflict of interest. BIBLIOGRAPHY 1. Evans W C. Trease and Evans, Pharmacognosy, Elsevier publishers, edition, 15, 9, 472. 2. Padmaa M, Paarakh. Terminalia arjuna (Roxb) Wt, and Arn, A review, International journal of pharmacology, 6(5), 1, 515-534. 3. Sarveswaran Sivalokanathan, Marati Radhakrishnan Vijayababu, Maruthaiveeran Periyasamy, Balasubramaniyan. Effects of Terminalia arjuna bark extract on apoptosis of human hepatoma cell line HepG2, World journal of gastroenterology, 12(7), 6, 118-124. 4. Parmar Pankaj, Kaushikkhamrui, Devaraja H C and Singh R R B. The effects of alcoholic extract of Arjuna (Terminalia arjuna) bark on stability of clarified butterfat, Journal of Medicinal plants Research, 7(35), 13, 2545-255. 5. Saheb L, Shinde, More S M., Junne S B, Wadje S S. The antifungal activity of five Terminalia species checked by paper disc method, Available online: www.uptodateresearchpublication.com July - September 11

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