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您的检索式：作者名="Nada M.Mostafa"
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| 1 | Chemical Composition,Cytotoxic and Anti-arthritic Activities of Hexane Extracts of Certain Schinus Species显示文摘The genus Schinus(Anacardiaceae)comprises about 29 species that are utilized in both traditional and current medicine to alleviate various disorders such as rheumatism,bronchial infections,stomach upset,menstrual disturbance,bronchitis,and conjunctivitis.In this study we aimed to investigate the chemical composition of hexane extracts obtained from Schinus polygamous and Schinus terebinthifolius leaves as well as their cytotoxic and anti-arthritic activities.The GC-MS analysis of S.polygamus leaves revealed identification of fifty-five components:being betulin(6.54%),phytol acetate(5.27%),lupeol(3.96%),palmitic acid methyl ester(3.58%)and heptacosane(3.25%).While,seventeen compounds were identified in S.terebinthifolius leaves,predominately characterized by phytol(14.70%),lupeol(13.33%),linolenic acid methyl ester(11.17%),palmitic acid methyl ester(7.74%),and 28-oxours-12-en-3-yl acetate(7.44%).Both extracts showed moderate cytotoxic activities against hepatocellular carcinoma cells with IC_(50) values of 102.65 and 65.55μg/mL,respectively.While colorectal carcinoma cell line presented IC_(50) values of 217.78 and 83.55μg/mL,respectively.Further,both extracts provided moderate anti-arthritic effects(IC_(50):80.12 and 63.09μg/mL,respectively)using protein denaturation test,compared to diclofenac sodium(IC_(50)=15.12μg/mL). | Heba A.S.El-Nashar Nada M.Mostafa Omayma A.Eldahshan Abdel Nasser B.Singab | 2021 | Journal of Pharmacy and Pharmacology2021，9，11： | 0 |
| 2 | Investigation of SARS-CoV-2 Main Protease Potential Inhibitory Activities of Some Natural Antiviral Compounds Via Molecular Docking and Dynamics Approaches显示文摘Coronaviruses caused an outbreak pandemic disease characterized by a severe acute respiratory distress syndrome leading to the infection of more than 200 million patients and the death of more than 4 million individuals.The primary treatment is either supportive or symptomatic.Natural products have an important role in the development of various drugs.Thus,screening of natural compounds with reported antiviral activities can lead to the discovery of potential inhibitory entities against coronaviruses.In the current study,an in-silico molecular docking experiment was conducted on the effects of some of these natural antiviral phytoconstituents,(e.g.,procyanidin B2,theaflavin,quercetin,ellagic acid,caffeoylquinic acid derivatives,berginin,eudesm-1β,6α,11-triol and arbutin),on the crystal structure of SARS-CoV-2 main protease(PDB ID:6w63)using AutoDock-Vina software.Many of the docked compounds revealed good binding affinity,with procyanidin B2(–8.6 Kcal/mol)and theaflavin(–8.5 Kcal/mol)showing a better or similar binding score as the ligand(–8.5 Kcal/mol).Molecular dynamics simulations were carried out at 100 ns and revealed that procyanidin B2 forms a more stable complex with SARS-CoV-2 main protease than theaflavin.Procyanidin B2,theaflavin,and 4,5-dicaffeoylquinic acid were evaluated for toxicity by ProTox-II webserver and were non-toxic according to the predicted LD50 values and safe on different organs and pathways.Additionally,these phytoconstituents showed good ADME properties and acceptable lipophilicity,as evaluated using WLOGP.Amongst the tested compounds,procyanidin B2 showed the highest lipophilic value.It is worth mentioning that these natural inhibitiors of SARS-CoV-2 main protease are components of green and black tea that can be used as a supporting supplement for COVID patients or as potential nuclei for further drug design and development campaigns. | Nada M.Mostafa Muhammad I.Ismail Amr M.El-Araby Dina M.Bahgat Ahmed M.Elissawy Ahmed M.Mostafa Omayma A.Eldahshan Abdel Nasser B.Singab | 2022 | Phyton-International Journal of Experimental Botany2022，91，5： | 0 |
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