scholarly journals Recent Advances in the Pharmacological Activities of Dioscin

2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Longfei Yang ◽  
Shengnan Ren ◽  
Fei Xu ◽  
Zhiming Ma ◽  
Xin Liu ◽  
...  
Keyword(s):  
Pharmacological Activities ◽  
Protective Properties ◽  
The Past ◽  
Recent Advances ◽  
Clinical Disorders ◽  
Anti Inflammatory ◽  
Potential Use

Dioscin is a typical saponin with multiple pharmacological activities. The past few years have seen an emerging interest in and growing research on this pleiotropic saponin. Here, we review the emerging pharmacological activities reported recently, with foci on its antitumor, antimicrobial, anti-inflammatory, antioxidative, and tissue-protective properties. The potential use of dioscin in therapies of diverse clinical disorders is also discussed.

Recent Advances in Therapeutic Applications of Bisbenzimidazoles

2020 ◽  
Vol 16 (4) ◽  
pp. 454-486 ◽  
Author(s):  
Smita Verma ◽  
Vishnuvardh Ravichandiran ◽  
Nihar Ranjan ◽  
Swaran J.S. Flora
Keyword(s):  
Heterocyclic Compounds ◽  
Wide Spectrum ◽  
Dna Recognition ◽  
Present Review ◽  
Pharmacological Activities ◽  
Structural Motifs ◽  
Therapeutic Applications ◽  
The Past ◽  
Recent Advances

Nitrogen-containing heterocycles are one of the most common structural motifs in approximately 80% of the marketed drugs. Of these, benzimidazoles analogues are known to elicit a wide spectrum of pharmaceutical activities such as anticancer, antibacterial, antiparasitic, antiviral, antifungal as well as chemosensor effect. Based on the benzimidazole core fused heterocyclic compounds, crescent-shaped bisbenzimidazoles were developed which provided an early breakthrough in the sequence-specific DNA recognition. Over the years, a number of functional variations in the bisbenzimidazole core have led to the emergence of their unique properties and established them as versatile ligands against several classes of pathogens. The present review provides an overview of diverse pharmacological activities of the bisbenzimidazole analogues in the past decade with a brief account of its development through the years.

scholarly journals Recent Advances in the Semisynthesis, Modifications and Biological Activities of Ocotillol-Type Triterpenoids

Molecules ◽  
2020 ◽  
Vol 25 (23) ◽  
pp. 5562
Author(s):  
Yucheng Cao ◽  
Kaiyi Wang ◽  
Si Xu ◽  
Lingtan Kong ◽  
Yi Bi ◽  
...  
Keyword(s):  
Biological Activities ◽  
Structure Activity Relationship ◽  
Activity Relationship ◽  
Pharmacological Activities ◽  
Structure Activity ◽  
Recent Advances ◽  
The World ◽  
Anti Inflammatory ◽  
Active Substances

Ginseng is one of the most widely consumed herbs in the world and plays an important role in counteracting fatigue and alleviating stress. The main active substances of ginseng are its ginsenosides. Ocotillol-type triterpenoid is a remarkably effective ginsenoside from Vietnamese ginseng that has received attention because of its potential antibacterial, anticancer and anti-inflammatory properties, among others. The semisynthesis, modification and biological activities of ocotillol-type compounds have been extensively studied in recent years. The aim of this review is to summarize semisynthesis, modification and pharmacological activities of ocotillol-type compounds. The structure–activity relationship studies of these compounds were reported. This summary should prove useful information for drug exploration of ocotillol-type derivatives.

An atomic-resolution microscope study of Al contracts on GaAs

1986 ◽  
Vol 44 ◽  
pp. 726-727
Author(s):  
Z. Liliental-Weber ◽  
C. Nelson ◽  
R. Ludeke ◽  
R. Gronsky ◽  
J. Washburn
Keyword(s):  
High Speed ◽  
Schottky Contacts ◽  
Detailed Knowledge ◽  
The Past ◽  
Semiconductor Interfaces ◽  
Deposited Metal ◽  
Microwave Applications ◽  
Free Interfaces ◽  
Potential Use

The properties of metal/semiconductor interfaces have received considerable attention over the past few years, and the Al/GaAs system is of special interest because of its potential use in high-speed logic integrated optics, and microwave applications. For such materials a detailed knowledge of the geometric and electronic structure of the interface is fundamental to an understanding of the electrical properties of the contact. It is well known that the properties of Schottky contacts are established within a few atomic layers of the deposited metal. Therefore surface contamination can play a significant role. A method for fabricating contamination-free interfaces is absolutely necessary for reproducible properties, and molecularbeam epitaxy (MBE) offers such advantages for in-situ metal deposition under UHV conditions

A REVIEW ON RECENT ADVANCES IN CHEMISTRY, SYNTHESIS AND BIOLOGICAL APPLICATIONS OF ISATIN DERIVATIVES

2018 ◽  
pp. 16-22
Author(s):  
Shukla PK ◽  
Singh MP ◽  
Patel R
Keyword(s):  
Heterocyclic Compounds ◽  
Biologically Active ◽  
Biological Applications ◽  
Plant Origin ◽  
Recent Past ◽  
Pharmacological Activities ◽  
Naturally Occurring ◽  
Recent Advances ◽  
Biological Aspects ◽  
Isatin Derivatives

Indole and its derivatives have engaged a unique place in the chemistry of nitrogen heterocyclic compounds. The recognition of the plant growthhormone, heteroauxin, the significant amino acids, tryptamine & tryptophan and anti-inflammatory drug, indomethacine are the imperativederivatives of indole which have added stimulus to this review work. Isatin (1H-indole-2,3-dione), an indole derivative of plant origin. Althoughit is a naturally occurring compound, but was synthesized by Erdmann and Laurent in 1840 before it was found in nature. Isatin is a versatileprecursor for many biologically active molecules and its diversified nature makes it a versatile substrate for further modifications. It is concernedin many pharmacological activities like anti-malarial, antiviral, anti-allergic, antimicrobial etc; isatin and its derivatives have been also found todemonstrate promising outcomes against various cancer cell lines. This review provides a brief overview on the recent advances and futureperspectives on chemistry and biological aspects of isatin and its derivatives reported in the recent past.

Anti-Inflammatory Properties of Plant Derived Natural Products – A Systematic Review

2019 ◽  
Vol 26 (24) ◽  
pp. 4506-4536 ◽  
Author(s):  
Iris E. Allijn ◽  
René P. Brinkhuis ◽  
Gert Storm ◽  
Raymond M. Schiffelers
Keyword(s):  
Systematic Review ◽  
Natural Products ◽  
Positive Control ◽  
Therapeutic Effects ◽  
Reference Compound ◽  
Individual Molecular Species ◽  
The Past ◽  
Anti Inflammatory ◽  
The Individual ◽  
Natural Medicines

Traditionally, natural medicines have been administered as plant extracts, which are composed of a mixture of molecules. The individual molecular species in this mixture may or may not contribute to the overall medicinal effects and some may even oppose the beneficial activity of others. To better control therapeutic effects, studies that characterized specific molecules and describe their individual activity that have been performed over the past decades. These studies appear to underline that natural products are particularly effective as antioxidants and anti-inflammatory agents. In this systematic review we aimed to identify potent anti-inflammatory natural products and relate their efficacy to their chemical structure and physicochemical properties. To identify these compounds, we performed a comprehensive literature search to find those studies, in which a dose-response description and a positive control reference compound was used to benchmark the observed activity. Of the analyzed papers, 7% of initially selected studies met these requirements and were subjected to further analysis. This analysis revealed that most selected natural products indeed appeared to possess anti-inflammatory activities, in particular anti-oxidative properties. In addition, 14% of the natural products outperformed the remaining natural products in all tested assays and are attractive candidates as new anti-inflammatory agents.

Anticancer Activity of Natural Flavonoids: Inhibition of HIF-1α Signaling Pathway

2020 ◽  
Vol 23 (26) ◽  
pp. 2945-2959 ◽  
Author(s):  
Xiangping Deng ◽  
Yijiao Peng ◽  
Jingduo Zhao ◽  
Xiaoyong Lei ◽  
Xing Zheng ◽  
...  
Keyword(s):  
Transcription Factor ◽  
Secondary Metabolites ◽  
Anticancer Agents ◽  
Hypoxia Inducible Factor ◽  
Tumor Hypoxia ◽  
Pharmacological Activities ◽  
Hypoxia Inducible Factor 1 ◽  
The Past ◽  
Low Toxicity ◽  
Tumor Blood Vessels

Rapid tumor growth is dependent on the capability of tumor blood vessels and glycolysis to provide oxygen and nutrients. Tumor hypoxia is a common characteristic of many solid tumors, and it essentially happens when the growth of the tumor exceeds the concomitant angiogenesis. Hypoxia-inducible factor 1 (HIF-1) as the critical transcription factor in hypoxia regulation is activated to adapt to this hypoxia situation. Flavonoids, widely distributed in plants, comprise many polyphenolic secondary metabolites, possessing broadspectrum pharmacological activities, including their potentiality as anticancer agents. Due to their low toxicity, intense efforts have been made for investigating natural flavonoids and their derivatives that can be used as HIF-1α inhibitors for cancer therapy during the past few decades. In this review, we sum up the findings concerning the inhibition of HIF-1α by natural flavonoids in the last few years and propose the idea of designing tumor vascular and glycolytic multi-target inhibitors with HIF-1α as one of the targets.

Medicinal and Biological Significance of Phenoxazine Derivatives

2020 ◽  
Vol 20 ◽  
Author(s):  
Jaya Dwivedi ◽  
Neetu Yaduvanshi ◽  
Shruti Shukla ◽  
Sonika Jain
Keyword(s):  
Drug Resistance ◽  
Biological Significance ◽  
Biological Application ◽  
Pharmacological Activities ◽  
Resistance Reversal ◽  
Anti Inflammatory ◽  
Pharmacological Application

: Since 1887, phenoxazine derivatives have attracted attention of chemist due to its versatile utility, industrially and pharmacologically. Literature is found abundant with various pharmacological activities of phenoxazine derivatives like antitumor, anticancer, antifungal, antibacterial, anti-inflammatory, anti-diabetic, anti-viral, anti-malarial, antidepressant, analgesic and many other drug resistance reversal activities. This review covers detailed over-view on pharmacological application of phenoxazine nucleus, its chemistry and reactivity and also illustrating the incorporation of different group at different positions enhancing its biological application, besides some synthetic procedures.

Phytochemical and Pharmacological Review on Two Herbs of Baijiangcao: Patrinia scabiosaefolia Fisch. ex Trev. and Patrinia villosa (Thunb.) Juss

2020 ◽  
Vol 17 (5) ◽  
pp. 496-517
Author(s):  
Yangcheng Liu ◽  
Wei Liu ◽  
Jiaqi Wang ◽  
Yang Liu ◽  
Changlan Chen ◽  
...  
Keyword(s):  
Chemical Constituents ◽  
Volatile Components ◽  
Research Papers ◽  
Pharmacological Activities ◽  
Comprehensive Review ◽  
Scientific Databases ◽  
The Past ◽  
Current State ◽  
Patrinia Scabiosaefolia ◽  
Antiviral Activities

Patrinia scabiosaefolia Fisch. Trev. and Patrinia villosa (Thunb.) Juss, are two species of Patrinia recorded in the Chinese Pharmacopoeia with the same Chinese name “Baijiangcao” and similar therapeutic effect in traditional Chinese medicine. The present article is the first comprehensive review on the chemical composition and pharmacological activities of these herbs. In this review, data on chemical constituents and pharmacological profile of the two herbs are provided. This review discusses all the classes of the 223 compounds (phenylpropanoids, flavonoids, terpenes, saponins and volatile components, etc.) detected in the two herbs providing information on the current state of knowledge of the phytochemicals present in them. In the past three years, our research group has isolated and identified about more than 100 ingredients from the two herbs. Therefore, we published a systematic review of our research papers and studies on the two herbs were carried out using resources such as classic books about Chinese herbal medicine and scientific databases including Pubmed, Web of Science, SciFinder, CNKI. etc. The present review discusses the most thoroughly studied pharmacological activities (antioxidant, anti-inflammatory, immunomodulatory, antimicrobial, antitumor and antiviral activities) of the two herbs. This comprehensive review will be informative for scientists searching for new properties of these herbs and will be important and significant for the discovery of bioactive compounds from the two herbs and in complete utilization of Patrinia scabiosaefolia Fisch. ex Trev. and Patrinia villosa (Thunb.) Juss.

An Overview on Phytochemical and Pharmacological Profile of Morus alba Linn.

2020 ◽  
Vol 16 ◽  
Author(s):  
Arpita Paul ◽  
Monami Rajiung ◽  
Kamaruz Zaman ◽  
Sushil Kumar Chaudhary ◽  
Hans Raj Bhat ◽  
...  
Keyword(s):  
Traditional Medicine ◽  
Morus Alba ◽  
Biologically Active ◽  
Pharmacological Profile ◽  
Pharmacological Activities ◽  
Significant Information ◽  
The Past ◽  
Comprehensive Information ◽  
The Family ◽  
White Mulberry

Background: Morus alba Linn. commonly known as white mulberry, belongs to the family Moraceae, is a promising traditional medicine. In Asia, besides its use in the preparation of delicacies, every part of this plant is utilized in traditional medicine. Over the past decade, studies related to identification and isolation of biologically active compounds, with flavonoids as the major class of phytoconstituents, from this plant has been reported. These phytoconstituents are not only found to be beneficial for the maintenance of general health but also are associated with a range of potential pharmacological activities such as antioxidant, anti-inflammatory, anti-diabetic, anticancer, hepatoprotective, cardioprotective, neuroprotective to name a few. Objective: This review aims to provide upgraded and comprehensive information regarding the phytochemical, ethnomedicinal use and pharmacological profile of the plant Morus alba Linn. Method: The significant information has been collected through various database viz. PubMed, Scopus, Web of Science, Science Direct based on the recent findings, using different terms of Morus alba. Results: The outcome of the study suggests that Morus alba is a multifunctional plant numerous phytochemicals, and possess a range of pharmacological activities. Conclusion: The data assembled on Morus alba will be beneficial to trigger research in various fields of pharmaceutical and allied science to explore the medicinal importance of this unique plant.

scholarly journals Adhesion GPCRs in Glioblastoma

2021 ◽  
Author(s):  
Gabriele Stephan ◽  
Niklas Ravn-Boess ◽  
Dimitris G Placantonakis
Keyword(s):  
G Protein ◽  
G Protein Coupled Receptors ◽  
The Past ◽  
Novel Treatment ◽  
The Family ◽  
Health And Disease ◽  
Basic Biology ◽  
G Protein Coupled ◽  
Potential Use ◽  
Receptor Family

Abstract Members of the adhesion family of G protein-coupled receptors (GPCRs) have received attention for their roles in health and disease, including cancer. Over the past decade, several members of the family have been implicated in the pathogenesis of glioblastoma. Here, we discuss the basic biology of adhesion GPCRs and review in detail specific members of the receptor family with known functions in glioblastoma. Finally, we discuss the potential use of adhesion GPCRs as novel treatment targets in neuro-oncology.

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