scholarly journals Design and synthesis of novel heterocyclic compounds as a PPAR-γ agonist

2020 ◽  
Vol 11 (2) ◽  
pp. 2063-2069
Author(s):  
Zambare Y. B. ◽  
Bhole R. P. ◽  
Chitlange S. S.

The multifarious metabolic syndrome, diabetes mellitus (DM), is a diseaseof concern all over the world and is approximate to affect 400 million individuals by the 2020. Several classes of drugs at the moment are available to lessen hyperglycemia in diabetes mellitus especially in Type-II. These drugs mostly have dangerous side effects and thus incisive for a new class of compounds is necessary to conquer this inconvenience. A series of 6 novel 5-nitrobenzofuran-2yl-carbamides derivatives were synthesized and molecular docking studies were performed on PPAR-γ target using (PDB code-4rfm).The preparation of5-nitro-1-benzofuran-2-carbohydrazide(4) on action with acetic acid, 1, 4-diaxone and sodium nitrite resulted in 5-nitro-1-benzofuran-2-carbonyl azide (5).The related compound (5) on action with substituted aromatic substituted amines undergoes Curtis type of rearrangement to give 5-nitro-N-(sub. carbamoyl)-1-benzofuran-2-carboxamide.The characterization and identification of prepared compounds were identified on the basis of NMR, IR, Mass and elemental analysis. Docking study of targeted compounds were done using software Autodock Tools 1.5.6 and visualisation done by Discovery Studio 3.5 software (Accelrys Inc. San Diego, CA USA). Molecular docking studies, the binding energies are determined to be in the range of –5.90 to –9.80 kcal/mol, with peroxisome proliferator activated receptor γ (PPAR-γ) receptors (PDB ID: 4RFM). The prepared compounds have been studied for their oral glucose tolerance test to distinguish the effect on plasma glucose level.

2018 ◽  
Vol 5 (2) ◽  
pp. 001-005
Author(s):  
H. A. Ahmed ◽  
I. Y. Alkali

Peroxisome Proliferator-Activated Receptor-γ (PPAR-γ) is a ligand-activated transcription factor and a member of the nuclear receptor superfamily that regulate the gene expression of proteins involved in glucose, lipid metabolism, adipocyte proliferation and differentiation and insulin sensitivity. Thiazolidinediones (TZDs) are one important class of synthetic agonists of PPAR-γ. TZDs are antidiabetic agents that target adipose tissue and improve insulin sensitivity, and they are currently being used in the treatment of type 2 diabetes. The study was carried out in order to discover new phytochemicals that have the ability to stimulate the PPAR-γ using molecular docking studies. AutoDock vina was used as molecular-docking tool in order to carry out the docking simulations. Nine phytochemicals namely plumbagin, quercetin, isovitexin, mangiferin, syringin, lupe-20-ene-3-one, purine 2, 6-dione, diosmetin and β sitosterol and pioglitazone a standard drug were docked against PPAR-γ using AutoDock vina and the results were analyzed using binding affinity. The results revealed that the compounds have significant binding affinity towards the PPAR-γ comparable to pioglitazone the standard drug. Based on the findings of this study these phytochemicals can serve as source of antidiabetic drugs via the mechanism of inhibition of PPAR-γ.


Author(s):  
SHAILENDRA SANJAY SURYAWANSHI ◽  
POOJA BHAVAKANA JAYANNACHE ◽  
RAJKUMAR SANJAY PATIL ◽  
PALLED MS ◽  
ALEGAON SG

Objectives: The objective of the study was to screen and assess the selected bioactive bioflavonoids in medicinal plants as potential coronaviruses (CoV) main protease (Mpro) inhibitors using molecular docking studies. Methods: We have investigated several bioflavonoids which include apigenin, galangin, glycitein, luteolin, morin, naringin, resveratrol, and rutin. Nelfinavir and lopinavir were used as standard antiviral drugs for comparison. Mpro was docked with selected compounds using PyRx 0.8 and docking was analyzed by PyRx 0.8 and Biovia Discovery Studio 2019. Results: The binding energies obtained from the docking of 6LU7 with native ligand, nelfinavir, lopinavir, apigenin, galangin, glycitein, luteolin, morin, naringin, resveratrol, and rutin were found to be −7.4, −8.3, −8.0, −7.8, −7.3, −7, −7.4, −7.6, −7.8, −6.9, and −9 kcal/mol, respectively. Conclusion: From the binding energy calculations, we can conclude that nelfinavir and lopinavir may represent potential treatment options and apigenin, galangin, glycitein, luteolin, morin, naringin, resveratrol, and rutin found to possess the best inhibitors of CoV disease-19 main protease.


Molecules ◽  
2021 ◽  
Vol 26 (19) ◽  
pp. 5957
Author(s):  
Syed Amir Ashraf ◽  
Abd Elmoneim O. Elkhalifa ◽  
Khalid Mehmood ◽  
Mohd Adnan ◽  
Mushtaq Ahmad Khan ◽  
...  

Diabetes mellitus is a global threat affecting millions of people of different age groups. In recent years, the development of naturally derived anti-diabetic agents has gained popularity. Okra is a common vegetable containing important bioactive components such as abscisic acid (ABA). ABA, a phytohormone, has been shown to elicit potent anti-diabetic effects in mouse models. Keeping its anti-diabetic potential in mind, in silico study was performed to explore its role in inhibiting proteins relevant to diabetes mellitus- 11β-hydroxysteroid dehydrogenase (11β-HSD1), aldose reductase, glucokinase, glutamine-fructose-6-phosphate amidotransferase (GFAT), peroxisome proliferator-activated receptor-gamma (PPAR-gamma), and Sirtuin family of NAD(+)-dependent protein deacetylases 6 (SIRT6). A comparative study of the ABA-protein docked complex with already known inhibitors of these proteins relevant to diabetes was compared to explore the inhibitory potential. Calculation of molecular binding energy (ΔG), inhibition constant (pKi), and prediction of pharmacokinetics and pharmacodynamics properties were performed. The molecular docking investigation of ABA with 11-HSD1, GFAT, PPAR-gamma, and SIRT6 revealed considerably low binding energy (ΔG from −8.1 to −7.3 Kcal/mol) and predicted inhibition constant (pKi from 6.01 to 5.21 µM). The ADMET study revealed that ABA is a promising drug candidate without any hazardous effect following all current drug-likeness guidelines such as Lipinski, Ghose, Veber, Egan, and Muegge.


Author(s):  
Sudha R ◽  
Charles C Kanakam ◽  
Nithya G

Objective: Various benzilic acids and its analogs have been synthesized using the protocol, obtain good to exceptional yield and their biological activity, and its docking studies have been discussed.Methods: Molecular docking studies were performed by discovery studio - LibDock docking program. To determine the cytotoxic effects, we used an MTT viability assay.Results: The results showed that cell growth is significantly lower in extract treated cells compared to untreated control. The effect of inhibition of cell growth was shown in different concentration dosages for cytotoxic, antibacterial, and antioxidant activity in vitro.Conclusion: From the antibacterial results prove that the synthesized compounds showed the potential activity. These remarks may give the encouragement of further development of our research in this field. The antioxidant activity was also performed for the compound benzilic acid and its substituted analogs.


2021 ◽  
Vol 12 ◽  
Author(s):  
Reddy Sankaran Karunakaran ◽  
Oruganti Lokanatha ◽  
Ganjayi Muni Swamy ◽  
Chintha Venkataramaiah ◽  
Muppuru Muni Kesavulu ◽  
...  

Objective: To evaluate the therapeutic efficacy and underlying molecular mechanisms of Bauhiniastatin-1 (BSTN1) to alleviate adiposity in diet-induced obese rodent model and in 3T3-L1 cells.Methods: BSTN1 was purified and confirmed through HPLC. In-vitro experiments such as MTT assay, Oil Red-O (ORO) stain, cellular lipid content, glycerol release and RT-PCR analysis were performed in 3T3-L1 cells in the presence and absence of BSTN1. In animal experiments, rats were divided into Group-I: normal pellet diet-fed, Group-II: HFD-fed, Groups-III, IV and V: HFD-fed BSTN1 (1.25, 2.5, and 5 mg/kg.b.wt./day/rat)-treated and Group-VI: HFD-fed Orlistat-treated. The rats were fed either normal diet or high fat diet (HFD) for 18 weeks and water ad-libitum. BSTN1 was orally administered from 13th week onwards to the selected HFD-fed groups. Body composition parameters, biochemical assays, histopathology examination and western blot analysis were performed to identify the predicted targets related to obesity. Molecular docking studies threw light on the binding interactions of BSTN1 against PPAR-γ, FAS and AMPK.Results: BSTN1 at 20 μM significantly (p < 0.001) inhibited adipocyte differentiation and lipid accumulation in 3T3-L1 cells. A conspicuous down-regulation in the mRNA expression levels of PPAR-γ, FAS and SREBP1 was observed but AMPK expression remained unchanged in BSTN1 treated 3T3-L1 cells. A substantial decrease in body weight gain, fat percent, total body fat, serum and liver lipid profile (except high-density lipoprotein), glucose, insulin and insulin resistance in BSTN1 treated rats was noticed in a dose dependent manner. In BSTN1 (5 mg/kg.b.wt.)-treated groups significantly (p < 0.01) elevated plasma adiponectin level but reduced leptin level as well as fall in serum AST and ALT were noticed. Further, the disturbed structural integrity and architecture of adipose and hepatic tissues due to high fat diet feeding were considerably recovered with BSTN1 treatment. Down-regulation in the protein expression level of PPAR-γ and activation of AMPK through phosphorylation was observed in BSTN1 treated rats than the untreated. Molecular docking studies revealed strong binding interactions of BSTN1 against PPAR-γ and AMPK and thus supported the experimental results.Conclusion: Taken together, the results suggest that BSTN1 could be a promising pharmacological molecule in the treatment of obesity and dyslipidemia.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Mater H. Mahnashi ◽  
Yahya S. Alqahtani ◽  
Ali O. Alqarni ◽  
Bandar A. Alyami ◽  
Muhammad Saeed Jan ◽  
...  

Abstract Background Diabetes mellitus is a common disease effecting the lifestyles of majority world population. In this research work, we have embarked the potential role of crude extracts and isolated compounds of Notholirion thomsonianum for the management diabetes mellitus. Methods The crude extracts of N. thomsonianum were initially evaluated for α-glucosidase, α-amylase and antioxidant activities. The compounds were isolated from the activity based potent solvent fraction. The structures of isolated compounds were confirmed with NMR and MS analyses. The isolated compounds were tested for α-glucosidase, α-amylase, protein tyrosine phosphatase 1B (PTP1B) and DPPH activities. The molecular docking studies were carried out to find the binding interactions of isolated compounds for α-glucosidase, α-amylase and PTP1B. Results Initially, we screened out crude extracts and subfractions of N. thomsonianum against different in-vitro targets. Among all, Nt.EtAc was observed a potent fraction among all giving IC50 values of 67, 70, < 0.1, 89 and 16 μg/mL against α-glucosidase, α-amylase, DPPH, ABTS and H2O2 respectively. Three compounds (Nt01, Nt02 and Nt03) were isolated from Nt.EtAc of N. thomsonianum. The isolated compounds Nt01, Nt02 and Nt03 exhibited IC50 values of 58.93, 114.93 and 19.54 μM against α-glucosidase, while 56.25, 96.54 and 24.39 μM against α-amylase respectively. Comparatively, the standard acarbose observed IC50 values were 10.60 and 12.71 μM against α-glucosidase, α-amylase respectively. In PTP1B assay, the compounds Nt01, Nt02 and Nt03 demonstrated IC50 values of 12.96, 36.22 and 3.57 μM in comparison to the standard ursolic acid (IC50 of 3.63 μM). The isolated compounds also gave overwhelming results in DPPH assay. Molecular docking based binding interactions for α-glucosidase, α-amylase and PTP1B were also encouraging. Conclusions In the light of current results, it is obvious that N. thomsonianum is potential medicinal plant for the treatment of hyperglycemia. Overall, Nt.EtAc was dominant fraction in all in-vitro activities. Three compounds Nt01, Nt02 and Nt03 were isolated from ethyl acetate fraction. The Nt03 specifically was most potent in all in-vitro assays. The molecular docking studies supported our in-vitro results. It is concluded that N. thomsonianum is a rich source of bioactive antidiabetic compounds which can be further extended to in-vivo based experiments.


2019 ◽  
Vol 16 (7) ◽  
pp. 560-568
Author(s):  
Vijayan R. Akhila ◽  
Maheswari R. Priya ◽  
Daisy R. Sherin ◽  
Girija K. Krishnapriya ◽  
Sreerekha V. Keerthi ◽  
...  

The synthesis of 4-amino-2-arylamino-5-(benzofuran-2-oyl)thiazoles 4a-h, as example of 2,4-diaminothiazole-benzofuran hybrids and an evaluation of their antidiabetic activity, by in vitro and computational methods, are reported. The synthesis of these diaminothiazoles was achieved mechano chemically by a rapid solvent-less method. Their antidiabetic activity was assessed by &#945;-glucosidase and &#945;-amylase inhibition assays. The, IC50 value for &#945;-glucosidase inhibition by 4-amino-5- (benzofuran-2-oyl)-2-(4-methoxyphenylamino)thiazole (4d) was found to be 20.04 &#181;M and the IC50 value for &#945;-amylase inhibition, 195.03 &#181;M, whereas the corresponding values for reference acarbose were 53.38 &#181;M and 502.03 &#181;M, respectively. Molecular docking studies at the active sites of &#945;- glucosidase and α-amylase showed that among the diaminothiazoles 4a-h now studied, 4-amino-5- (benzofuran-2-oyl)-2-(4-methoxyphenylamino)thiazole (4d) has the highest D-scores of -8.63 and -8.08 for &#945;-glucosidase and for α-amylase, with binding energies -47.76 and -19.73 kcal/mol, respectively.


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