scholarly journals Sterols from Jatropha tanjorensis leaves exhibit anti-inflammatory potential: in vitro and in silico studies

2021 ◽  
Vol 45 (1) ◽  
Author(s):  
Damilola Alex Omoboyowa

Abstract Background Inflammation has continued to raise global challenges and Jatropha tanrogenesis (JT) is used traditionally for its management. In this study, the in silico and in vitro anti-inflammatory potential of bioactive sterols were investigated. The active compounds of ethanol extract of JT leaves were identified using Gas chromatography-mass spectrometry (GC.MS) followed by molecular docking against COX-1 and COX-2 using maestro Schrödinger and pharmacokinetic profile prediction using webserver tools. The in vitro anti-inflammatory and anti-oxidantive potentials were investigated using standard protocols. Results GC–MS analysis of ethanol extract of JT leaves revealed the presence of eight (8) compounds, the molecular docking analysis of these compounds demonstrated varying degrees of binding affinities against the target proteins. The extract exhibit concentration dependent anti-oxidant activity with IC50 of 106.383 and 6.00 Fe2+E/g for DPPH and FRAP respectively. The extract showed significant (P < 0.05) reduction in percentage inhibition of hemolysis at 200 µg/ml while non-significant (P > 0.05) increase was observed at 600 and 1000 µg/ml compared to 200 µg/ml of diclofenac sodium. At lower concentration of 25 and 50 µg/ml, percentage inhibition of albumin denaturation was significantly (P < 0.05) higher compared to 200 µg/ml of diclofenac sodium. Drug likeness prediction and ADME/toxicity screening showed that the bioactive compounds possess no side effects. Conclusion The results obtained in this study suggested that, JT leaves possess anti-inflammatory activity and could be used as a source of new drug.

Molecules ◽  
2021 ◽  
Vol 26 (23) ◽  
pp. 7372
Author(s):  
Ahmed I. Foudah ◽  
Mohammed H. Alqarni ◽  
Aftab Alam ◽  
Mohammad Ayman Salkini ◽  
Pravej Alam ◽  
...  

The aim of this study was to explore the composition and evaluate the in silico and in vitro antioxidants and antimicrobial and anti-inflammatory effects of Apium graveolens var. dulce leaves essential oil (AGO) collected from Al-Kharj (Saudi Arabia). AGO was isolated using the hydro-distillation method, and its composition was studied using gas-chromatography-mass Spectrometry (GC–MS), antimicrobial activities using well diffusion assay, and antioxidant and anti-inflammatory activities using spectrophotometric methods. The pharmacological activities of their major compounds were predicted using PASS (prediction of activity spectra for substances) and drug-likening properties by ADME (absorption, distribution, metabolism, and excretion) through web-based online tools. Isocnidilide (40.1%) was identified as the major constituent of AGO along with β-Selinene, Senkyunolide A, Phytyl acetate, and 3-Butylphthalide. AGO exhibited a superior antibacterial activity, and the strongest activity was detected against Gram-positive bacteria and Candida albicans. Additionally, it exhibited a weaker antioxidant potential and stronger anti-inflammatory effects. PASS prediction supported the pharmacological finding, whereas ADMET revealed the safety of AGO. The molecular docking of isocnidilide was carried out for antibacterial (DNA gyrase), antioxidant (tyrosinase), and anti-inflammatory (cyclooxygenase-2) activities. The docking simulation results were involved hydrophilic interactions and demonstrated high binding affinity of isocnidilide for anti-inflammatory protein (cycloxygenase-2). The presence of isocnidilide makes AGO a potential anti-inflammatory and antimicrobial agent. AGO, and its major metabolite isocnidilide, may be a suitable candidate for the future drug development.


2021 ◽  
Vol 1 ◽  
pp. 820-828
Author(s):  
Annas Pamening ◽  
W Wirasti ◽  
S Slamet ◽  
Urmatul Waznah

AbstractBasil plant (Ocimum americanum) is efficacious as an anti-inflammatory and analgesic activity. According to research by Sarma and Babu, 2011, Verma and Kothiyal, 2012 showed basil activity as an antioxidant, antimicrobial, anti-diabetic, anthelmintic, antifungal, insecticide, anti-inflammatory, analgesic, and lowering total cholesterol and LDL-C levels. The purpose of this study was to determine the stabilization activity of red blood cell membranes on methanol partitioning, n-hexane partitioning and ethanol extract of basil leaves in vitro. This study used the erythrocyte membrane stabilization method from the induction of a hypotonic solution with samples of methanol partitioning, n-hexane partitioning and ethanol extract to be compared with a positive control, namely Na diclofenac. By analyzing the data using UV-Vis spectrophotometry test. These results were supported by the ANOVA statistical test which stated that there was a difference in each treatment and continued with the Tukey test which stated that there was no difference between 100 ppm diclofenac sodium and 400 ppm ethanol extract.Keywords: Extract, Basil (Ocimum americanum) Leaf, In Vitro. AbstrakTumbuhan Kemangi (Ocimum americanum) berkhasiat sebagai aktivitas sebagai anti-inflamasi dan analgesik. Menurut penelitian Sarma dan Babu, 2011.,Verma dan Kothiyal, 2012 menunjukkan aktivitas kemangi sebagai antioksidan, antimikroba, anti diabetes, antihelmintik, antifungi, insektisida, antiinflamasi, analgesic, dan menurunkan kadar total kolesterol dan LDL-C. Tujuan dari penelitian ini yaitu untuk mengetahui aktivitas stabilisasi membran sel darah merah pada partisi metanol, partisi n-heksan dan ekstrak etanol daun kemangi secara in vitro. Penelitian ini menggunakan metode stabilisasi membran eritrosit dari induksi larutan hipotonik dengan sampel partisi metanol, partisi n-heksan dan ekstrak etanol yang akan dibandingkan dengan kontrol positif yaitu Na diklofenak. Dengan analisis data menggunakan uji spektrofotometri UV-Vis. Hasil ini didukung dengan uji statistik ANOVA yang menyatakan terdapat perbedaan pada setiap perlakuan dan dilanjutkan uji tukey yang menyatakan tidak ada perbedaan pada natrium diklofenak 100 ppm dengan ekstrak etanol konsentrasi 400 ppm.Kata Kunci : Ekstrak, Daun Kemangi (Ocimum americanum), In Vitro.


2020 ◽  
Vol 186 ◽  
pp. 111863 ◽  
Author(s):  
Muhammad Saeed Jan ◽  
Sajjad Ahmad ◽  
Fida Hussain ◽  
Ashfaq Ahmad ◽  
Fawad Mahmood ◽  
...  

2021 ◽  
Vol 11 (2) ◽  
pp. 3470-3479

Leaves of Annona muricata are commonly used for treating diabetes. This study was conducted to investigate the molecular mechanisms involved in the antidiabetic properties of leaves of Annona muricata. Leaves of Annona muricata were extracted separately with H2O, hydromethanol (50% methanol), methanol, ethylacetate, and n-butanol. Chemical characterization of the extracts was performed by spectrophotometry and Gas chromatography-Mass Spectrometry (GC-MS) techniques. Biological activity was determined by α-amylase inhibition assays and molecular docking. The hydromethanol extract had a total phenolics concentration of 117.00±0.59 µg GAE/mg extract whereas; flavonoids were most abundant in the n-butanol extract accounting for 29.34±8.87 µg QE/mg extract. The n-butanol extract had the best FRAP value of 41.17±0.57 Vit C eqv mM, which was significantly higher than the value of the vitamin C reference. Estimated IC50 for all the extracts did not differ significantly but was significantly higher than the reference compound quercetin. All extracts inhibited α-amylase in vitro albeit significantly lower than acarbose. The hydromethanol extract had the highest inhibitory activity (53.31 ± 0.33%). Furthermore, chemical profiling of the hydromethanol extract revealed the presence of a variety of bioactive compounds. In silico analysis by molecular docking of the compounds identified by GC-MS on α-amylase revealed that the compounds had robust molecular interactions orchestrated by H-bonding and hydrophobic interactions. From the results, it can be concluded that extracts of Annona muricata possess antioxidant phytochemicals that inhibit α-amylase. Therefore, the results justify the use of the plant for the treatment of diabetes.


2020 ◽  
Vol 10 (3) ◽  
pp. 208-215 ◽  
Author(s):  
Talia Serseg ◽  
Khedidja Benarous ◽  
Mohamed Yousfi

Background: Essential oils have been used for centuries. EOs are gaining increasing interest because of their acceptance by consumers and their safe status. For the first time, the effect of essential oils on the inhibition of lipases has been investigated in this work. Objective: We aimed in this study to investigate in vitro the inhibitory effects of the three essential oils of most used spices: Peppermint (Mentha piperita L.), cinnamon (Cinnamomum zeylanicum L.) and Cloves (Syzygium aromaticum L. Merr. et Perry) against Candida rugose lipase. In silico studies using molecular docking have been achieved to study the inhibition mechanism of major compounds of EO: menthol, carvacrol, eugenol and cinnamylaldehyde toward CRL. Methods: The inhibitory effect of three essential oils were determined by candida rugosa enzyme and pNP-L as substrate using spectrophotometry. Autodock vina was used for molecular docking with 50 runs. Results: We have found that these essential oils have a strong inhibitory effect with IC50 values 1.09, 1.78 and 1.13 mg/ml compared with Orlistat 0.06 mg/ml. The results show competitive inhibition for the three major compounds Menthol, Carvacrol and Eugenol with uncompetitive inhibition for Cinnamaldehyde. Different repetition ratios of hydrogen bonds and hydrophobic interactions were observed. The saved interactions were with His449, Ser209, Gly123, Gly124 and Phe344 for all molecules. Conclusion: These observations support using and considering essential oils and their major compounds as good sources for design new drugs to treat candidiasis and other diseases related to Lipases.


Plants ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 825
Author(s):  
Mohammad Khalid ◽  
Mohammed H. Alqarni ◽  
Ambreen Shoaib ◽  
Muhammad Arif ◽  
Ahmed I. Foudah ◽  
...  

The fruits of Spondias mangifera (S. mangifera) have traditionally been used for the management of rheumatism in the northeast region of India. The present study explores the probable anti-arthritis and anti-inflammatory potential of S. mangifera fruit extract’s ethanolic fraction (EtoH-F). To support this study, we first approached the parameters in silico by means of the active constituents of the plant (beta amyrin, beta sitosterol, oleonolic acid and co-crystallised ligands, i.e., SPD-304) via molecular docking on COX-1, COX-2 and TNF-α. Thereafter, the absorption, distribution, metabolism, excretion and toxicity properties were also determined, and finally experimental activity was performed in vitro and in vivo. The in vitro activities of the plant extract fractions were evaluated by means of parameters like 1,1-Diphenyl-2- picrylhydrazyl (DPPH), free radical-reducing potential, albumin denaturation, and protease inhibitory activity. The in vivo activity was evaluated using parameters like COX, TNF-α and IL-6 inhibition assay and arthritis score in Freund Adjuvant (CFA) models at a dose of 400 mg/kg b.w. per day of different fractions (hexane, chloroform, alcoholic). The molecular docking assay was performed on COX-1, COX-2 and TNF-α. The results of in vitro studies showed concentration-dependent reduction in albumin denaturation, protease inhibitors and scavenging activity at 500 µg/mL. Administration of the S. mangifera alcoholic fraction at the abovementioned dose resulted in a significant reduction (p < 0.01) in arthritis score, paw diameters, TNF-α, IL-6 as compared to diseased animals. The docking results showed that residues show a critical binding affinity with TNF-α and act as the TNF-α antagonist. The alcoholic fraction of S. mangifera extract possesses beneficial effects on rheumatoid arthritis as well as anti-inflammatory potential, and can further can be used as a possible agent for novel target-based therapies for the management of arthritis.


Molecules ◽  
2021 ◽  
Vol 26 (22) ◽  
pp. 6883
Author(s):  
Sergey Francevich Vasilevsky ◽  
Ol’ga Leonidovna Krivenko ◽  
Irina Vasilievna Sorokina ◽  
Dmitry Sergeevich Baev ◽  
Tatyana Genrikhovna Tolstikova ◽  
...  

The interaction of acetamidine and phenylamidine with peri-R-ethynyl-9,10-anthraquinones in refluxing n-butanol leads to the formation of cascade transformations products: addition/elimination/cyclization―2-R-7H-dibenzo[de,h]quinolin-7-ones and(or) 2-R-3-aroyl-7H-dibenzo[de,h]quinolin-7-ones. The anti-inflammatory and antitumor properties of the new 2-R-7H-dibenzo[de,h]quinolin-7-ones were investigated in vivo, in vitro, and in silico. The synthesized compounds exhibit high anti-inflammatory activity at dose 20 mg/kg (intraperitoneal injection) in the models of exudative (histamine-induced) and immunogenic (concanavalin A-induced) inflammation. Molecular docking data demonstrate that quinolinones can potentially intercalate into DNA similarly to the antitumor drug doxorubicin.


Biomedicines ◽  
2021 ◽  
Vol 9 (10) ◽  
pp. 1380
Author(s):  
Johanis Wairata ◽  
Edwin Risky Sukandar ◽  
Arif Fadlan ◽  
Adi Setyo Purnomo ◽  
Muhammad Taher ◽  
...  

This study aimed to isolate xanthones from Garcinia forbesii and evaluated their activity in vitro and in silico. The isolated compounds were evaluated for their antioxidant activity by DPPH, ABTS and FRAP methods. The antidiabetic activity was performed against α-glucosidase and α-amylase enzymes. The antiplasmodial activity was evaluated using Plasmodium falciparum strain 3D7 sensitive to chloroquine. Molecular docking analysis on the human lysosomal acid-alpha-glucosidase enzyme (5NN8) and P. falciparum lactate dehydrogenase enzyme (1CET) and prediction of ADMET for the active compound, were also studied. For the first time, lichexanthone (1), subelliptenone H (2), 12b-hydroxy-des-D-garcigerrin A (3), garciniaxanthone B (4) and garcigerin A (5) were isolated from the CH2Cl2 extract of the stem bark of G. forbesii. Four xanthones (Compounds 2–5) showed strong antioxidant activity. In vitro α-glucosidase test showed that Compounds 2 and 5 were more active than the others, while Compound 4 was the strongest against α-amylase enzymes. In vitro antiplasmodial evaluation revealed that Compounds 2 and 3 showed inhibitory activity on P. falciparum. Molecular docking studies confirmed in vitro activity. ADMET predictions suggested that Compounds 1–5 were potential candidates for oral drugs. The isolated 2–5 can be used as promising phytotherapy in antidiabetic and antiplasmodial treatment.


Sign in / Sign up

Export Citation Format

Share Document