@article {840, title = {Phytochemical Analysis, In vitro Antioxidant Capacity and Toxicity Assessment of Copaifera paupera Oleoresin}, journal = {Pharmacognosy Journal}, volume = {11}, year = {2019}, month = {March 2019}, pages = {374-378}, type = {Original Article}, chapter = {374}, abstract = {

Introduction: The present study was taken to determine the phytochemical analysis, the antioxidant activity in vitro (FRAP and TBARS methodologies), the oral acute toxicity and antigenotoxicity of the oleoresin Copaifera paupera. Methods: The oleoresin was tested for in vivo cytoprotective capacity using the Micronucleus Test and the Comet Assay in mice bone marrow cells and mice erythrocytes cells, respectively. Results: The oleoresin had low levels of total flavonoids and phenol content and also of antioxidant capacity. Orally, the LD50 appeared to be \> 5000 mg/kg (no toxic or low toxic). The results showed all the doses evaluated (180 360, 720 and 1440 mg/kg) antigenotoxic effect by reduce the DNA damage induced by cyclophosphamide, being a 100 \% DNA damage reduction at the highest dose evaluated. Conclusion: According to the Micronucleus test, the oleoresin Copaifera paupera had the ability of increase the cell proliferation despite the exposition of cyclophosphamide. (abstract is not arranged properly, improper sentences)

}, keywords = {Antigenotoxicity, Comet assay, Copaifera paupera, Micronucleus test, Oleoresin, Phytochemical analysis}, doi = {10.5530/pj.2019.11.57}, author = {Danae Liviac and Paola Raunelli and Rafael Alvis and Silvio Puente and Ivan Best and Oscar Reategui} } @article {1458, title = {Evaluation of cytotoxic, DNA protecting and LPS induced MMP-9 down regulation activities of Plectranthus amboinicus (Lour) Spreng. essential oil.}, journal = {Pharmacognosy Journal}, volume = {7}, year = {2015}, month = {27th Nov, 2014}, pages = {32-36}, type = {Original Article}, chapter = {32}, abstract = {

Introduction:Plectranthus amboinicus (Lour) Spreng is a known medicinal plant used in Siddha and Ayurveda medicines in India. It has enormous medicinal potential to treat various diseases. Methods: The present study focused on the use of essential oil obtained from the leaves of Plectranthus amboinicus to test cytotoxicity against breast (MCF-7) and colorectal (HT-29) cancer cell lines, to protect DNA from H2O2 induced genotoxicity through comet assay and to treat inflammation in lipopolysaccharide (LPS) induced over expression of matrix metalloproteinase-9 (MMP-9) in human peripheral blood mononuclear cells (PBMCs) by gelatin zymogram and inhibition at transcriptional level confirmed using RT-PCR (reverse transcriptase polymerase chain reaction). Results: Cytotoxicity of essential oil against MCF-7 and HT-29 cancer cell lines revealed the IC50 values of 53 \± 0.01 and 87 \± 0.01\μg/mL respectively. At 200 \μg/mL essential oil protected against 75\% of DNA damage in 3T3-L1 fibroblast cells. Essential oil showed significant reduction in production of MMP-9 in a concentration dependent manner. Conclusion: Overall, the results showed that essential oil of P. amboinicus is a potent bioactive substance and it could be used in herbal medicine preparations.
Key words: Essential oil , Cytotoxicity , Antigenotoxicity, Zymogram, RT- PCR.

}, keywords = {Antigenotoxicity, Cytotoxicity, Essential oil, RT- PCR, Zymogram}, author = {Ramaraj Thirugnanasampandan and Gunasekar Ramya and Madhusudhanan Gogulramnath and Rajarajeswaran Jayakumar and M.S. Kanthimathi} } @article {32, title = {Evaluation of cytotoxic, DNA protecting and LPS induced MMP-9 down regulation activities of Plectranthus amboinicus (Lour) Spreng. essential oil}, journal = {Pharmacognosy Journal}, volume = {7}, year = {2015}, month = {01/2015}, pages = {32-36}, type = {Original Article}, chapter = {32}, abstract = {

Introduction: Plectranthus amboinicus (Lour) Spreng is a known medicinal plant used in Siddha and Ayurveda medicines in India. It has enormous medicinal potential to treat various diseases. Methods: The present study focused on the use of essential oil obtained from the leaves of Plectranthusamboinicusto test cytotoxicity against breast (MCF-7) and colorectal (HT-29) cancer cell lines, to protect DNA from H2O2 induced genotoxicity through comet assay and to treat inflammation in lipopolysaccharide (LPS) induced over expression of matrix metalloproteinase-9 (MMP-9) in human peripheral blood mononuclear cells (PBMCs) by gelatin zymogram and inhibition at transcriptional level confirmed using RT-PCR (reverse transcriptase polymerase chain reaction). Results: Cytotoxicity of essential oil against MCF-7 and HT-29 cancer cell lines revealed the IC50 values of 53 \± 0.01 and 87 \± 0.01 \μg/mL respectively. At 200 \μg/mL essential oil protected against 75\% of DNA damage in 3T3-L1 fibroblast cells. Essential oil showed significant reduction in production of MMP-9 in a concentration dependent manner. Conclusion: Overall, the results showed that essential oil of P. amboinicus is a potent bioactive substance and it could be used in herbal medicine preparations.

}, keywords = {Antigenotoxicity, Cytotoxicity, Essential oil, RT- PCR., Zymogram}, doi = {10.5530/pj.2015.7.3}, author = {Ramaraj Thirugnanasampandan and Gunasekar Ramya and Madhusudhanan Gogulramnath and Rajarajeswaran Jayakumar and M.S. Kanthimathi} }