|Year : 2013 | Volume
| Issue : 1 | Page : 1-4
Lack of brine shrimp lethality and hemagglutination activity in Grewia asiatica Linn
Abidah Parveen1, Mohammad Irfan2, Muhammad Saleem Jilani3, Kashif Wasim3, Mehwish Kiran3, Fida Muhammad1
1 Department of Pharmacy, Hazara University, Havelian Campus, Abbottabad, Pakistan
2 Department of Genetics, Hazara University, Mansehra, Pakistan
3 Department of Horticulture, Faculty of Agriculture, Gomal University, Dera Ismail Khan, Pakistan
|Date of Web Publication||21-Aug-2013|
Department of Pharmacy, Hazara University, Havelian Campus, Abbottabad 22010
Source of Support: None, Conflict of Interest: None
| Abstract|| |
Objective: To investigate the brine shrimp lethality and hemagglutination activity of the fruit, stem bark and leaves of Grewia asiatica L. (Family: Tiliaceae). Materials and Methods: The crude ethanolic extracts and fractions of the fruit, stem bark, and leaves were subjected to cytotoxic assay using brine shrimps and were also investigated for hemagglutination activity. Results: Brine shrimps survived easily and hemagglutination activity was not observed. Conclusions: The fruits, leaves and stem bark of G. asiatica have insignificant brine shrimp lethality and hemagglutination activity was found to be absent.
Keywords: Brine shrimp, crude ethanolic extracts, Grewia asiatica, hemagglutination, traditional medicine
|How to cite this article:|
Parveen A, Irfan M, Jilani MS, Wasim K, Kiran M, Muhammad F. Lack of brine shrimp lethality and hemagglutination activity in Grewia asiatica Linn. J Pharm Negative Results 2013;4:1-4
|How to cite this URL:|
Parveen A, Irfan M, Jilani MS, Wasim K, Kiran M, Muhammad F. Lack of brine shrimp lethality and hemagglutination activity in Grewia asiatica Linn. J Pharm Negative Results [serial online] 2013 [cited 2019 Oct 14];4:1-4. Available from: http://www.pnrjournal.com/text.asp?2013/4/1/1/116754
| Introduction|| |
Grewia species are used in traditional medicine for their anticancer property; few have been investigated. Among them, Grewia villosa has been reported to possess strong anticancer activity.  The extracts of Grewia tilliaefolia and lupeol isolated from it have been reported to possess weak anticancer activity in three cell lines Vero, HEp-2, and B 16 F 16 .  The aqueous extracts of the fruit and leaves of Grewia asiatica L. (Tiliaceae) have also been reported to show strong in-vitro anticancer activity in five cell lines HEK-293, NCI-H522, HELA, HeP-2, and MCF-7 in a concentration-dependent manner.  However, the methanolic extract of the fruit has been reported to be active against NCI-H522 and MCF-7 and inactive against the other three cell lines.  Its methanolic extract has also been reported to be active against Ehrlich's ascites carcinoma cell lines.  The present investigation is to determine the chronic toxicity level using brine shrimps and hemagglutination activity of the crude ethanolic extracts and the fractions of the fruit, stem bark, and leaves of G. asiatica.
| Materials and Methods|| |
Collection and identification of plant material
The fruits, leaves, and stem bark were collected from Grewia orchard in Dera Ismail Khan in June 2009. The plant was identified and authenticated by Mr. Hamidullah, Faculty of Pharmacy, Gomal University, Dera Ismail Khan, Pakistan. Voucher specimens were deposited at the Herbarium of the Department of Pharmacognosy, Gomal University, D.I. Khan.
Preparation of extracts
The plant materials were extracted with ethyl alcohol (distilled) by maceration process. This procedure was repeated three times. The crude ethanolic extract was filtered; the solvent was distilled off and then concentrated under vacuum. The crude ethanolic extracts of the fruit, leaves and stem bark were then fractionated with hexane, carbon tetrachloride, chloroform, ethyl acetate, n-butanol, methanol and distilled water. Fractions obtained in considerable quantities were stored in airtight, amber-colored containers for further studies. All solvents were analytical grade Merck Germany. Etoposide was used as a standard reference.
20 mg of the test sample was dissolved in 2 ml methanol which served as a stock solution. From each stock solution, 10, 100 and 1000 μg/ml were taken in vials in triplicates separately by means of micro syringe for 5, 50 and 500 ppm. , The vials were kept overnight for the evaporation of organic solvent. Traces of organic solvent were removed by placing vials in vacuum desiccator. Using a Pasteur pipette, ten mature larvae were placed per vial and the volume made to 5 ml by sea water. The vials were kept for 24 hours at 27 ° C under illumination. The number of survivors and dead in test samples and control were thereafter counted and recorded. The data was analyzed with Finney computer program to determine LD 50 values with 95% confidence intervals.
The hemagglutination activity was tested against human erythrocytes blood groups ABO.  A 2% suspension of erythrocytes, obtained by centrifugation of the blood, was prepared in phosphate buffer (pH 7).  The activity was investigated serially in different dilutions in the ratio of 1:1, 1:2, 1:4, 1:8, and 1:16 of each extract against all the blood groups at the doses of 5, 2.5, 1.25, 0.625, and 0.3125 mg/m1.  Smooth button-like formation (due to sedimentation of erythrocytes) at the bottom of the test tube indicates the negative activity of the extract where as a rough granular deposition (due to agglutination of erythrocytes) shows positive action.
| Results|| |
The crude ethanolic extract of the fruit of G. asiatica and its fractions were found to be cytotoxically inactive because the shrimps survived easily in this extract [Table 1]. The crude ethanolic extract/fractions of the stem bark [Table 2] and leaves of G. asiatica were also found to be non-active against LD 50 [Table 3]. LD 50 was determined by Finney computer program, which showed no lethality. No hemagglutination activity was observed for either of the crude extracts [Table 4].
|Table 4: Agglutination activity of the crude extracts of fruit, leaf and stem bark of Grewia asiatica|
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| Conclusion|| |
Grewia asiatica is used for the treatment of cancer like symptoms  in traditional medicine. On the basis of the present study, it might be suggested that the fruit, stem bark, and leaves of G. asiatica have non-significant cytotoxic activity because of the absence of brine shrimp lethality giving a preliminary indication of safety of the plant extracts. It might also be suggested that G. asiatica has only a selective action against cancer cells by virtue of its antioxidant potential. Dietary and endogenous antioxidants prevent cellular damage by reacting with and eliminating oxidizing free radicals.  Higher oxidative stress observed in cancer cells can also result from a decrease or inactivation of antioxidants , and "oxidation therapy" is a recent strategy developed for the treatment of cancer by inducing cytotoxic oxidative stress for cancer treatment. , The anticancer activity of G. asiatica reported in the literature has also been attributed to the presence of antioxidants such as vitamin C, anthocyanins, and folate carotenoids. 
The heamagglutination activity of the plant plays an important role to see the effect of the test drug on blood. It also helps to determine the safety margin of the drug in cases of blood disorders such as hemorrhages or clot formation. However, no such activity was observed in the crude ethanolic extracts of the fruit, stem bark, and leaves of G. asiatica. Due to the absence of these activities, the fractions of the crude extracts were not investigated further.
| Abbreviations|| |
Vero (a normal African green monkey kidney cell line), Hep-2(a human larynx epithelial carcinoma cell line), B16F10 (Mouse melanoma cell line), HEK-293 (Epidermal kidney cancer cell line), NCI-H522 (Cell lung cancer cell line), HELA (Cervical cancer cell line) and MCF-7 (Breast cancer cell line).
| Acknowledgment|| |
The authors acknowledge Mr. Hamidullah, Chairman, Pharmacognosy Department and Dr. Gul Majid, Dean, Faculty of Pharmacy, Gomal University, Dera Ismail Khan, Pakistan for their guidance to execute this study.
The opinions expressed in this publication are those of the authors and do not necessarily represent those of SCIBIOLMED.ORG. Authors are responsible for their citing of sources and the accuracy of their references and bibliographies. The editors cannot be held responsible for any lacks or possible violations of third parties' rights.
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[Table 1], [Table 2], [Table 3], [Table 4]