Chemical Constituents, Antioxidant, Anticholinesterase and Antiproliferative Effects of Algerian Pistacia atlantica Desf. Extracts

2020 ◽  
Vol 11 (3) ◽  
pp. 249-256
Author(s):  
Imene Achili ◽  
Amel Amrani ◽  
Chaouki Bensouici ◽  
Fatih Gül ◽  
Muhammed Altun ◽  
...  

Background: Pistacia atlantica Desf. (Anacardiaceae) has various applications for dietetic and medicinal purposes. Objective: The aim of the present study was to evaluate antioxidant, antiproliferative and anticholinesterase activities of different extracts from leaf and stem of Pistacia atlantica Desf. Methods: The antioxidant activity was performed by four methods: DPPH, ABTS, CUPRAC and reducing power assays. Anti-cholinesterase activity was performed against acetylcholinesterase (AChE) and Butyrylcholinesterase (BuChE) enzymes. Antiproliferative assays were investigated against HeLa cell lines using xCELLigence RTCA instrument. The secondary metabolites composition was established by HPLC-TOF/MS analysis. Results: In DPPH, reducing power and in ABTS .+ scavenging activity, all the extracts showed strong inhibitory activity compared to synthetic antioxidants such as butylated hydroxytoluene (BHT) and butylated hydroxyanisole (BHA), in which the activities were almost equal to the two standards. The results were less significant in CUPRAC assay. The ethyl acetate (EtOAc) extracts exhibited the best antioxidant activity in all tests. Moreover, P. atlantica extracts inhibited AChE and BChE activities in a dose-dependent manner. The strongest AChE and BuChE inhibition activities were obtained for EtOAc extract of the stem (IC50 values 15.14±0.74 and 24.01±0.21 μg/mL, respectively) compared to galantamine (IC50 values 6.27±1.15 and 34.75±1.99 μg/mL, respectively). P. atlantica extracts also showed significant antiproleferative activity against HeLa cell lines, the best antiproleferative activity was obtained for the methanol and EtOAc extracts. The observed biological activities can be attributed to the presence of phenolic compounds and flavonoids in the extracts. The HPLC-TOF/MS analysis identified the presence of 22 phytochemicals. Gallic acid and rutin were the main compounds detected. Cichoric, gentisic, vanillic, protocatechuic and rosmarinic acids as well as catechin and quercetin were also present. Conclusion: This study demonstrated good antioxidant, anticholinesterase and antiproliferative activities of P. atlantica extracts, which opens up new possibilities for pharmaceutical and food industries.

2016 ◽  
Vol 3 (2) ◽  
pp. 4-9 ◽  
Author(s):  
Venkateshwarlu Eggadi ◽  
Umasankar Kulandaivelu ◽  
Sharvana Bhava Bandaru Sheshagiri ◽  
Venkateshwar Rao Jupalli

Isatin and its derivatives is versatile lead molecule for potential bioactive agents and shows wide spectrum of activities. In this study, we evaluated antioxidant, antimicrobial and cytotoxic activity of isatin-3-[N2-(2-benzalaminothiazol-4-yl)] hydrazone derivatives using well defined models. Antioxidant activity of the isatin derivatives (Va-Vj) was evaluated by using the 1, 1-diphenyl-2-picryl hydrazine radicals scavenging assay. The antimicrobial activity is evaluated by cup plate method and anticancer activity is evaluated by MTT assay against HBL-100 & HeLa cell lines. Compound Vh (R = 5-Cl, R1 = OH & R2 = OCH3) showed good antioxidant activity with the IC50 of 8.09 M. In addition Ve and Vi have showned most active antibacterial activity against Bacillus subtilis, Staphylococcus aureus and Escherichia coli with a Zone of Inhibition (mm) 20, 16, 18 and 14, 12, 15 on respective organism at 100 g/disc. The compound Vi have produced a good antifungal activity against Aspergillus niger and Clostridium vericulata with the zone of inhibition values of 9 and 8 mm respectively. These isatin derivatives also among the test compounds, compound Vd (R = 5-Cl, R1 = OH & R2 = OCH3) and compound Vh (R = 5-Cl, R1 = OH & R2 = OCH3) have shown nearly equal cytotoxic activity with IC50 values of 246.53 mM and 247.29 mM against HBL-100 cell lines and HeLa cell lines respectively. From the results, isatin derivatives showed powerful antioxidant activity, antimicrobial and anticancer activity may be due to the halogens substituted at 5th position of isatin. The standard drugs used were ampicillin, clotrimazole, cisplatin and ascorbic acid for antibacterial, antifungal, anticancer and antioxidant respectively.


2021 ◽  
Vol 4 (3) ◽  
pp. 192-201
Author(s):  
Mosab Yahya Al-Nour ◽  
Ahmed H Arbab ◽  
Mohammad Khalid Parvez ◽  
Arwa Y Mohamed ◽  
Mohammed S Al-Dosari

This study aimed to investigate the anticancer activity of Haplophyllum tuberculatum(Forsk.) aerial parts ethanol extract and fractions and reveal the potential anticancer targets, binding modes, pharmacokinetics, and toxicity properties of its phytoconstituents. MTT assay was used to investigate the anticancer activity. TargetNet, ChemProt version 2.0, and CLC-Pred web servers were used for virtual screening, and Cresset Flare software was used for molecular docking with the 26 predicted targets. Moreover, pkCSM, swiss ADME, and eMolTox web servers were used to predict pharmacokinetics and safety. Ethanolic extracts of H. tuberculatum on HepG2 and HeLa cell lines showed promising activities with IC50 values 54.12 and 48.1 µg/mL, respectively. Further, ethyl acetate fraction showed the highest cytotoxicity on HepG2 and HeLa cell lines with IC50 values 41.7 and 52.31 µg/mL. Of 70 compounds screened virtually, polygamain, justicidin A, justicidin B, haplotubine, kusunokinin, and flindersine were predicted as safe anticancer drugs candidates. They showed the highest binding scores with targets involved in cell growth, proliferation, survival, migration, tumor suppression, induction of apoptosis, metastasis, and drug resistance. Our findings revealed the potency of H. tuberculatum as a source of anticancer candidates that further studies should support.


Author(s):  
Debjit Ghosh ◽  
Sumanta Mondal ◽  
Prof. Karipeddi Ramakrishna

Objective: The present work deals with the qualitative study of the phytoconstituents present in Aegialitis rotundifolia Roxb., ethanolic leaves extract and evaluate its antioxidant properties in vitro. Methods: The qualitative phytochemical analysis of the extract was performed first using preliminary phytochemical tests and then by liquid chromatography quadrupole-time-of-flight mass spectrometry (LC-Q-TOF-MS). The antioxidant properties were investigated comprehensively using seven in vitro models viz., 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging, nitric oxide (NO) scavenging, hydrogen peroxide (H2O2) scavenging, superoxide (SOD) radical scavenging, lipid peroxidation (LPO) assay, reducing power (RP), and total antioxidant activity. Results: The preliminary phytochemical analysis revealed the presence of several important phytochemical groups whereas the LC-Q-TOF-MS analysis detected 25 phytoconstituents in the extract mostly belonging to flavonoids and alkaloids. The test extract showed strong dose-dependent antioxidant activity in all the seven in vitro models, however, the activity of the extracts was slightly lower compared to the reference standard ascorbic acid. Conclusion: The test extract showed strong antioxidant properties which could be possibly due to the phytoconstituents detected in the extract.


Marine Drugs ◽  
2021 ◽  
Vol 19 (8) ◽  
pp. 438
Author(s):  
Tantan Li ◽  
Yun Wang ◽  
Li Li ◽  
Mengyue Tang ◽  
Qinghong Meng ◽  
...  

Four new cytochalasans, phychaetoglobins A–D (1–4), together with twelve known cytochalasans (5–16), were isolated from a mangrove-associated fungus Chaetomium globosum kz-19. The new structures were elucidated on the basis of extensive 1D and 2D NMR, HR ESIMS spectroscopic analyses, and electronic circular dichroism (ECD) calculations. The absolute configuration of 2 was established by application of Mosher’s method. Compounds 4–8 exhibited moderate cytotoxicities against A549 and HeLa cell lines with the IC50 values less than 20 μM.


2021 ◽  
Vol 17 (5) ◽  
pp. 573-582
Author(s):  
Siva Shankar Raj ◽  

The antioxidant, antimicrobial and anticancer activity of n-hexane extract of Mollugo nudicaulis Lam. is of interest. The antioxidant activity of the extract was determined by separate methods of radical scavenging assays. Antimicrobial activity was analyzed by disc diffusion method on fungi species, gram positive and negative species. The anticancer potential of plant extract was evaluated on A2780 cell lines by MTT assay. Results exposed that, the n-hexane extract of M.nudicaulis possess comparable significant antioxidant activity with IC50 values of 12.79ą0.82, 36.65ą0.03 and 19.59ą0.26 μg/mL, on DPPH, nitric oxide and hydroxyl radical scavenging assays respectively, and also possess notable reducing power of 0.84ą0.04 (Reducing power assay) and 0.75ą0.02 (FRAB assay) at the maximum concentration of 200 μg/mL of the n-hexane extract. Antimicrobial activity of extract exhibited maximum zone of inhibition ranged from 11.1 ą 0.3 to 14 .5ą 0.3 mm on tested microorganism. The anticancer activity of plant extract found to be strong cell growth inhibitory activity with minimal IC50 values of 32.46ą0.92 μg/mL on A2780 cell lines. Collectively this study can be concluded that, the n-hexane extract of M.nudicaulis might act as possible antioxidant, antimicrobial and anticancer agents.


2019 ◽  
Vol 7 (4) ◽  
pp. 91-96
Author(s):  
Isra'a Al-sobhi ◽  
◽  
Rawan Al-Ghabban ◽  
Soad Shaker Ali ◽  
Jehan Al-Amri ◽  
...  

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