@article {629, title = {Antioxidant Activity, Total Phenolic Content and Total Flavonoid Content of Water and Methanol Extracts of Phyllanthus species from Malaysia}, journal = {Pharmacognosy Journal}, volume = {10}, year = {2018}, month = {June 2018}, pages = {677-681}, type = {Original Article}, chapter = {677}, abstract = {

Aims: The effects of 2 types of solvents, water and methanol were investigated to determine the presence of antioxidant activity, total phenolic content (TPC) and total flavonoid content (TFC) from three Phyllanthus species namely, Phyllanthus urinaria, Phyllanthus niruri and Phyllanthus debilis. Materials\ and\ Methods: The antioxidant activities were measured using 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,20- azinobis (3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) assays. The chemical contents of the Phyllanthus sp. were presented as total phenolic content (TPC) and total flavonoid content (TFC). Statistical analysis used: All statistical analysis was conducted using SPSS for Windows, Version 22. All data were presented as mean \± standard deviation. Results: Our result showed that P. urinaria showed higher TPC, followed by P. debilis and P. niruri for both methanol and water extracts. Similarly, P. urinaria showed higher TFC than P. debilis and P. niruri. The antioxidant activity by using 1,1-diphenyl-2-picrydydrazyl (DPPH) assay showed EC50 of samples ranged from 15.8 to 29.3 \μg/mL for methanol extract and 33.5 to 73.0 \μg/mL for water extract. The 2,20- azinobis (3-ethylbenzothiazoline- 6-sulphonic acid) (ABTS) assay showed EC50 ranges which were from 11.2 to 26.0 \μg/mL for methanol extract and 13.5 to 37.4 \μg/mL for water extract. Conclusion: Methanol extract showed higher TPC, TFC value and lower EC50 values for antioxidant activities when compared to water extract. In both methanol and water extracts, P. urinaria had higher TPC and TFC value and lower EC50 for both DPPH and ABTS assay followed by P. debilis and P. niruri.

}, keywords = {ABTS, DPPH, Flavonoid, phenolic, Phyllanthus}, doi = {10.5530/pj.2018.4.111}, url = {http://fulltxt.org/article/649}, author = {Siti Nur Dalila Mohd Zain and Wan Adnan Wan Omar} } @article {752, title = {Therapeutic Index of Methanolic Extracts of Three Malaysian Phyllanthus Species on MCF-7 and MCF-10A Cell Lines}, journal = {Pharmacognosy Journal}, volume = {10}, year = {2018}, month = {November 2018}, pages = {s30-s32}, type = {Original Article}, chapter = {s30}, abstract = {

Introduction: Phyllanthus species such as P. urinaria, P. niruri and P. debilis are common herbs found in Malaysia that are traditionally used for treatment of chronic diseases such as liver diseases, kidney stones and cancer. Phyllanthus species were shown in vitro to have many biological functions such as anti-cancer, anti-inflammatory, hepatoprotective and anti-diabetic. Aims: The goal of this in vitro study was to assess the cytotoxic effect of the methanolic extract of P. urinaria, P. niruri and P. debilis on MCF-10A and MCF-7 cells (i.e., normal and cancerous breast cell lines) and to determine the therapeutic index of each Phyllanthus species. Materials and Methods: We determined the therapeutic index for each Phyllanthus sp. and its selective toxicity towards these cells. The toxicity of sample toward the cells are measured by trypan blue cell counting method. Results: Our results showed that P. debilis had the lowest IC50 concentration in MCF-7 cells and the highest IC50 concentration in MCF-10A cells and its therapeutic index was higher than that found in P. niruri and P. urinaria. The high therapeutic index of P. debilis suggests that this species has greater selective cytotoxicity in MCF-7 cancer cells than in MCF-10A normal cells. Thus, the methanolic extract of P. debilis should be further characterised and developed for future use as an anti-cancer agent.

}, keywords = {Cytotoxicity, MCF-10A, MCF-7, Phyllanthus, Therapeutic index}, doi = {10.5530/pj.2018.6s.5}, author = {Wan Adnan Wan Omar and Siti Nur Dalila Mohd Zain} }