Green synthesised AuNps using Ajuga Bracteosa extract and AuNps-Free supernatant exhibited equivalent antibacterial and anticancerous efficacies.

The current study is designed to synthesize gold nanoparticles using Ajuga bracteosa extract, which is a highly known medicinal herb found in the northern Himalayas. The synthesized gold nanoparticles were initially characterized by UV-Vis spectrophotometer, SEM, FTIR, pXRD, and, GC-MS. Antibacterial efficacy of A. bracteosa extract, AuNps, and AuNps-free supernatant activity was checked against highly pathogenic clinical isolates of Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa via agar well diffusion method, assuming that supernatant might have active compounds. The Nps-free supernatant showed the maximum antibacterial activity against E. coli (20.8±0.3 mm), Staphylococcus aureus (16.5±0.5), and Pseudomonas aeruginosa (13±0.6). While green synthesized AuNps showed effective antibacterial activity (Escherichia coli (16.4±0.3mm), Staphylococcus aureus (15.05±0.5mm), and Pseudomonas aeruginosa (11.07±0.6mm)) which was high compared to A. bracteosa extract. Anticancer activity was assessed by MTT assay on U87 and HEK293 cell lines. Aj-AuNps have an antigrowth effect on both the cell lines however Aj-AuNps-free supernatant which was also evaluated along with the Aj-AuNps, showed high toxicity toward HEK293 cell line compared to U87. Further, the GC-MS analysis of supernatant showed the presence of resultant toxic compounds after the reduction of gold salt, which include Trichloromethane, Propanoic acid, 2-methyl-, methyl ester, Methyl isovalerate, Pentanoic acid, 2-hydroxy-4-methyl-, Benzene-propanoic acid, and alpha-hydroxy. Based on the observation small molecular weight ligands of Ajuga bracteosa were analyzed in-silico for their binding efficacy towards selected membrane proteins of our target pathogens. RMSD is also calculated for the best docked protein ligand pose. The results revealed that among all listed ligands, Ergosterol and Decacetylajugrin IV have high virtuous binding affinities towards the membrane proteins of targeted pathogens. The current findings revealed that the Aj-AuNps are good antibacterial as well as anticancerous agents while the Nps-free supernatant is also exceedingly effective against resistant pathogens and cancer cell lines.

Hepatoprotective Role Of N-Hexane Fraction And Crude Methanolic Extract Of Withania Coagulans In Balb C Mice.

Background: Withania coagulans is one of the most important medicinal herbs due to its wide range of biological activities. The aim of this study was to compare the hepatoprotective activity of crude methanolic extract versus n- hexane fraction of fruit of Withania coagulans in CCl4 induced liver toxicity. Methods: This study was done on 36 Balb c mice in Department of Anatomy of Khyber Medical College Peshawar. Results: The mean serum of Group 1(control Group) was 33.41±1.82U/L, for Group 2 (CCl4 treated Group) was 89.01±7.51 U/L, for Group 3(low dose Group) was 49.91±3.48 U/L and for Group 4 (High dose Group) was 50.86±4.87 U/L. There was significant difference in the readings of Group1 and Group 2 which indicated CCL4 induced hepatotoxicity in two groups. There was significant difference in the values of Group 3 and Group 4 (p value .000), showing the hepatotoxicity in these Groups was further enhanced. The mean AST at the end of six weeks for Group1 was 26.80±3.21U/L, for Group 2 was 149.01±13.63U/L, for Group 3 (including both low doses) was 70.81±7.92U/L and for Group 4 (High doses group) was 51.01±11.05U/. Conclusion: Withania coagulans both fractions have hepatoprotective effect against CCL4 induced hepatic toxicity in high and low doses in Balb c mice.