scholarly journals Contribution of the phenolic composition to the antioxidant, anti-inflammatory and antitumor potential of Equisetum giganteum L. and Tilia platyphyllos Scop.

2017 ◽  
Vol 8 (3) ◽  
pp. 975-984 ◽  
Author(s):  
Inés Jabeur ◽  
Natália Martins ◽  
Lillian Barros ◽  
Ricardo C. Calhelha ◽  
Josiana Vaz ◽  
...  
Keyword(s):  
Biological Activities ◽  
Phenolic Composition ◽  
Naturally Occurring ◽  
Antitumor Potential ◽  
Tilia Platyphyllos ◽  
Anti Inflammatory

Naturally-occurring phytochemicals have received pivotal attention in the last few years, due to the increasing evidence of biological activities.

An Overview on Pyranocoumarins: Synthesis and Biological Activities

2020 ◽  
Vol 23 (24) ◽  
pp. 2679-2721 ◽  
Author(s):  
Evangelia-Eirini N. Vlachou ◽  
Konstantinos E. Litinas
Keyword(s):  
Organic Compounds ◽  
Antifungal Agents ◽  
Biological Activities ◽  
Biological Properties ◽  
Pyran Ring ◽  
Naturally Occurring ◽  
Anti Cancer ◽  
Anti Inflammatory ◽  
Antibacterial And Antifungal ◽  
Anti Hiv

Pyrano- and dipyranocoumarins are classes of naturally occurring organic compounds with very interesting biological activities. This review focuses on the synthetic strategies for the synthesis of pyranocoumarins and dipyranocoumarins and the biological properties of those compounds. The synthesis involves the formation of the pyran ring, at first, from a coumarin or the formation of pyranone moiety from an existing pyran. Pyranocoumarins and dipyranocoumarins present anti-HIV, anti-cancer, neuroprotective, antidiabetic, antibacterial, antifungal, anti-inflammatory activities. Especially khellactones and calanolides are usually potent and selective in anti-HIV activity. Decursin and decursinol derivatives are effective as anticancer, neuroprotective, antidiabetic, antibacterial, and antifungal agents.

Benzofuran: A Key Heterocycle - Ring Closure And Beyond

2020 ◽  
Vol 17 (3) ◽  
pp. 224-276
Author(s):  
Andiappan Lavanya ◽  
Kilambi Narasimhan ◽  
Vediappen Padmini
Keyword(s):  
Biological Activities ◽  
Extraction Process ◽  
Ring Closure ◽  
Pharmacological Activities ◽  
Naturally Occurring ◽  
Synthetic Materials ◽  
Privileged Scaffold ◽  
Medicinal Properties ◽  
Anti Inflammatory ◽  
Anti Hiv

: The benzofuranyl motif present in compounds exhibits various medicinal properties and non-drug applications. These derivatives are naturally occurring compounds or synthetic materials, which cover a broad spectrum of pharmacological activities like anti-inflammatory, anti-diabetic, anti- depressant, anti-HIV, anti-microbial, anti-proliferative, anti-convulsant, cytotoxic, analgesic, etc. Few of the commercially interesting compounds from this class are, ailanthoidol (anti-inflammatory), amiodarone, dronedarone, celivarone (anti-arrhythmic), bufuralol (muscular airways relaxant), morphine, 5-(2-aminopropyl)benzofuran; 5-APB, 6-(2-aminopropyl)benzofuran; 6-APB (CNS), rifampicin (antibiotic), etc., whereas, some of the non-drug applications are in perfumery industry (bergapten) and as tannin activators in sunscreen preparations (psoralen, 8-methoxypsoralen, and angelicin). Considering these interesting biological activities and commercial utilities, a review on the synthetic aspects of this privileged scaffold was attempted. For the benefit of natural product-based drug discovery, available sources of these derivatives, extraction process and reported biological activities have also been outlined in this review.

scholarly journals Physalin B Suppresses Inflammatory Response to Lipopolysaccharide in RAW264.7 Cells by Inhibiting NF-κB Signaling

2018 ◽  
Vol 2018 ◽  
pp. 1-6
Author(s):  
Yanjun Yang ◽  
Lang Yi ◽  
Qing Wang ◽  
Bingbing Xie ◽  
Congwei Sha ◽  
...  
Keyword(s):  
Tumor Necrosis Factor ◽  
Inflammatory Response ◽  
Tumor Necrosis ◽  
Nuclear Translocation ◽  
Biological Activities ◽  
Raw264.7 Macrophages ◽  
Naturally Occurring ◽  
Physalis Angulata ◽  
Anti Inflammatory ◽  
Necrosis Factor

Physalin B from Physalis angulata L. (Solanaceae) is a naturally occurring secosteroid with multiple biological activities. But its anti-inflammatory activity and mechanism remain unclear. Physalin B effects on RAW264.7 macrophages stimulated by lipopolysaccharide (LPS) were observed in this study. The expression and secretion of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) induced by LPS were significantly inhibited by physalin B. Meanwhile, the NF-κB nuclear translocation induced by LPS was inhibited by physalin B. The anti-inflammatory effects of physalin B could not be inhibited by mifepristone (RU486), the blocker of glucocorticoid receptor. In conclusion, physalin B can suppress inflammatory response to LPS in macrophages by inhibiting the production of inflammatory cytokines via NF-κB signaling.

scholarly journals Crepis vesicaria L. subsp. taraxacifolia Leaves: Nutritional Profile, Phenolic Composition and Biological Properties

2020 ◽  
Vol 18 (1) ◽  
pp. 151
Author(s):  
Sónia Pedreiro ◽  
Sandrine da Ressurreição ◽  
Maria Lopes ◽  
Maria Teresa Cruz ◽  
Teresa Batista ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Biological Activities ◽  
Ethanolic Extract ◽  
Biological Properties ◽  
No Production ◽  
Phenolic Composition ◽  
Food Ingredients ◽  
Chicoric Acid ◽  
Nutritional Profile ◽  
Anti Inflammatory

Crepis vesicaria subsp. taraxacifolia (Cv) of Asteraceae family is used as food and in traditional medicine. However there are no studies on its nutritional value, phenolic composition and biological activities. In the present work, a nutritional analysis of Cv leaves was performed and its phenolic content and biological properties evaluated. The nutritional profile was achieved by gas chromatography (GC). A 70% ethanolic extract was prepared and characterized by HLPC-PDA-ESI/MSn. The quantification of chicoric acid was determined by HPLC-PDA. Subsequently, it was evaluated its antioxidant activity by DPPH, ABTS and FRAP methods. The anti-inflammatory activity and cellular viability was assessed in Raw 264.7 macrophages. On wet weight basis, carbohydrates were the most abundant macronutrients (9.99%), followed by minerals (2.74%) (mainly K, Ca and Na), protein (1.04%) and lipids (0.69%), with a low energetic contribution (175.19 KJ/100 g). The Cv extract is constituted essentially by phenolic acids as caffeic, ferulic and quinic acid derivatives being the major phenolic constituent chicoric acid (130.5 mg/g extract). The extract exhibited antioxidant activity in DPPH, ABTS and FRAP assays and inhibited the nitric oxide (NO) production induced by LPS (IC50 = 0.428 ± 0.007 mg/mL) without cytotoxicity at all concentrations tested. Conclusions: Given the nutritional and phenolic profile and antioxidant and anti-inflammatory properties, Cv could be a promising useful source of functional food ingredients.

scholarly journals RECENT STRATEGIES FOR EFFICIENT SYNTHESIS AND BIOLOGICAL ACTIVITIES OF COUMARIN-CHALCONE DERIVATIVES

2020 ◽  
pp. 28-37
Author(s):  
SATHISH KUMAR KONIDALA ◽  
VIJAY KOTRA
Keyword(s):  
Antimalarial Activity ◽  
Biological Activities ◽  
Clinical Applications ◽  
Biologically Active ◽  
Efficient Synthesis ◽  
Huge Number ◽  
Pharmacological Activities ◽  
Chalcone Derivatives ◽  
Naturally Occurring ◽  
Anti Inflammatory

Coumarins and chalcones are potential pharmacological and biologically active molecules obtained from natural source. Coumarins have predominant pharmacological activities such as antidiabetic, antitumor, and anti-inflammatory activity. Chalcones are also one of the naturally occurring pharmacologically vital molecules with different activities such as anti-inflammatory, antitumor, antimicrobial, and antimalarial activity. Literature reveals that a huge number of coumarinyl chalcone derivatives have various pharmacological activities. Coumarinyl chalcone derivatives gained more prominence due to their significant biological activities. This work explains the current information about synthesis techniques, pharmacological importance, and clinical applications of coumarinyl chalcone derivatives.

scholarly journals Naturally Occurring Chromone Glycosides: Sources, Bioactivities, and Spectroscopic Features

Molecules ◽  
2021 ◽  
Vol 26 (24) ◽  
pp. 7646
Author(s):  
Yhiya Amen ◽  
Marwa Elsbaey ◽  
Ahmed Othman ◽  
Mahmoud Sallam ◽  
Kuniyoshi Shimizu
Keyword(s):  
Secondary Metabolites ◽  
13C Nmr ◽  
Biological Activities ◽  
Biosynthetic Pathways ◽  
Important Group ◽  
Naturally Occurring ◽  
Nmr Data ◽  
Anti Inflammatory ◽  
Drug Leads

Chromone glycosides comprise an important group of secondary metabolites. They are widely distributed in plants and, to a lesser extent, in fungi and bacteria. Significant biological activities, including antiviral, anti-inflammatory, antitumor, antimicrobial, etc., have been discovered for chromone glycosides, suggesting their potential as drug leads. This review compiles 192 naturally occurring chromone glycosides along with their sources, classification, biological activities, and spectroscopic features. Detailed biosynthetic pathways and chemotaxonomic studies are also described. Extensive spectroscopic features for this class of compounds have been thoroughly discussed, and detailed 13C-NMR data of compounds 1–192, have been added, except for those that have no reported 13C-NMR data.

scholarly journals Review of Chemical, Pharmacological, Biological Activities of Isatin and Its Derivatives – Part-2 (2002 To 2020)

2020 ◽  
pp. 288-307
Keyword(s):  
Antioxidant Activity ◽  
Biological Activities ◽  
Coal Tar ◽  
Smooth Muscles ◽  
Vascular Smooth Muscles ◽  
Naturally Occurring ◽  
Wide Range ◽  
Synthetic Reactions ◽  
Anti Inflammatory ◽  
Isatin Derivatives

: Isatin is a naturally occurring substance identified in humans, animals, plants and coal tar. Isatin derivatives are reported to possess a wide range of activites. This review is in continuation of “Part-1 (1877-2002)” review published by our team. This review encompasses the most signigicant reports published during 2002 to 2020 on the biological & pharmacological activites of isatin and its derivatives. The review includes the various synthetic reactions of isatin and activites reported. The pharmacological and biological activites reported were antimicrobial, antineoplastic & related activities; analgesic, anti-inflammatory, anticonvulsant, antioxidant, activity against veterinary pathogen, effects on cardiac & vascular smooth muscles; transthyretin fibrillogenesis inhibitor and antiglycation activity of isatin compounds.

Pharmacologically potentials of different substituted coumarin derivatives

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Benzene Ring ◽  
Bioactive Compounds ◽  
Biological Activities ◽  
Pharmacological Properties ◽  
Coumarin Derivatives ◽  
Wide Range ◽  
Anti Oxidant ◽  
Anti Inflammatory ◽  
Coumarin Compounds

Coumarin and its derivatives are widely spread in nature. Coumarin goes to agroup as benzopyrones, which consists of a benzene ring connected to a pyronemoiety. Coumarins displayed a broad range of pharmacologically useful profile.Coumarins are considered as a promising group of bioactive compounds thatexhibited a wide range of biological activities like anti-microbial, anti-viral,antiparasitic, anti-helmintic, analgesic, anti-inflammatory, anti-diabetic, anticancer,anti-oxidant, anti-proliferative, anti-convulsant, and antihypertensiveactivities etc. The coumarin compounds have immense interest due to theirdiverse pharmacological properties. In particular, these biological activities makecoumarin compounds more attractive and testing as novel therapeuticcompounds.

Diverse chemical and biological potentials of various pyridazine and pyridazinone derivatives

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Heterocyclic Compounds ◽  
Biological Activities ◽  
Wide Spectrum ◽  
Biological Properties ◽  
Industrial Chemical ◽  
Anti Inflammatory ◽  
Pyridazinone Derivatives

A series of heterocyclic compounds incorporating pyridazine moiety were for diverse biological activities. Pyridazines and pyridazinones derivatives showed wide spectrum of biological activities such as vasodialator, cardiotonic, anticonvulsant, antihypertensive, antimicrobial, anti-inflammatory, analgesic, anti-feedant, herbicidal, and various other biological, agrochemical and industrial chemical activities. The results illustrated that the synthesized pyridazine/pyridazine compounds have diverse and significant biological activities. Mechanistic insights into the biological properties of pyridazinone derivatives and various synthetic techniques used for their synthesis are also described.

Recent Progress of Benzimidazole Hybrids for Anticancer Potential

2020 ◽  
Vol 27 (35) ◽  
pp. 5970-6014 ◽  
Author(s):  
Md. Jawaid Akhtar ◽  
Mohammad Shahar Yar ◽  
Vinod Kumar Sharma ◽  
Ahsan Ahmed Khan ◽  
Zulphikar Ali ◽  
...  
Keyword(s):  
Anticancer Agents ◽  
Biological Activities ◽  
Alkylating Agents ◽  
American Chemical Society ◽  
Chemical Society ◽  
Benzimidazole Derivatives ◽  
Progressive Development ◽  
Anticancer Properties ◽  
Naturally Occurring ◽  
Nitrogenous Base

This review presents the detailed account of factors leading to cancer and design strategy for the synthesis of benzimidazole derivatives as anticancer agents. The recent survey for cancer treatment in Cancer facts and figures 2017 American Chemical Society has shown progressive development in fighting cancer. Researchers all over the world in both developed and developing countries are in a continuous effort to tackle this serious concern. Benzimidazole and its derivatives showed a broad range of biological activities due to their resemblance with naturally occurring nitrogenous base i.e. purine. The review discussed benzimidazole derivatives showing anticancer properties through a different mechanism viz. intercalation, alkylating agents, topoisomerases, DHFR enzymes, and tubulin inhibitors. Benzimidazole derivatives act through a different mechanism and the substituents reported from the earlier and recent research articles are prerequisites for the synthesis of targeted based benzimidazole derivatives as anticancer agents. The review focuses on an easy comparison of the substituent essential for potency and selectivity through SAR presented in figures. This will further provide a better outlook or fulfills the challenges faced in the development of novel benzimidazole derivatives as anticancer.

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