scholarly journals Hydrazones and their metal complexes: A short review on their biological potentia

2020 ◽  
Vol 11 (SPL4) ◽  
pp. 1440-1447
Author(s):  
KushalNath Mishra ◽  
Shambaditya Goswami ◽  
Kumudhavalli M.V ◽  
Kamal Saini ◽  
Nikita Pal ◽  
...  

Hydrazones belong to complexes are beneficial in different fields for their essential role in the development of a range of stable complexes in the coordination chemistry. Different researchers have reported the various medicinal properties of hydrazones. Hydrazone and its metal complexes are useful for the detection of some organic components from pharmaceutical formulations. These metallic compounds act as a catalyst for conducting various chemical reactions and help in making different chemical complexes that are effective against bacteria, fungi, and many other microbes. Aromatic hydrazone derivatives can measure the concentration of low molecular weight aldehyde and ketone complexes. Hydrazones possess numerous medicinal properties, including antimicrobial, anti-cancer, antidepressant, anti-tubercular, anti-viral, etc. For the new drug discovery, hydrazones/azomethines are considered to be an important class of compound. From molecular biology to pharmaceutical formulation, organic chemistry, new drug development process, the importance of hydrazone and its metal complexes is immense. The present review aims to highlight the reported biological activities related to hydrazones for the last decade.

2021 ◽  
Vol 11 (3) ◽  
pp. 224-228
Author(s):  
Anubhav Dubey ◽  
Yatendra Singh

Cinchona which belongs to family Rubiaceae, got its importance from the centuries because of its anti- malarial activity. Alkaloids present in this herb, Quinine, Chichonine, Quinidine and Cinchonidine are the main, but percentage may vary in species to species. Since the early 17th century, these alkaloid are frequently used in Indian ayurvedic, sidha and traditional folk medicine to treating fever and Still now in modern medicine cinchona alkaloids are used for the treatment of malaria as well as for other diseases and became the well-known drug after the treatment of malaria caused by Plasmodium Sp. Literature study revealed that along with the antimalarial activity the cinchona alkaloids has other potentiality like anti-obesity, anti-cancer, anti-oxidant, anti-inflammatory, anti-microbial activity. These article reviews the biological activities of cinchona alkaloids along with its toxic effect.


2022 ◽  
Author(s):  
Valid Gahramanov ◽  
Moria Oz ◽  
Tzemach Aouizerat ◽  
Mali Salmon-Divon ◽  
Tovit Rosenzweig ◽  
...  

Abstract Plants with medicinal properties are usually identified based on traditional medicine knowledge or using low-throughput screens for specific pharmacological activities. Here, we suggest a different approach to uncover a range of pharmacological activities of a chosen plant extract without the need for functional screening. This tactic predicts biological activities of a plant extract based on pathway analysis of transcriptome changes caused by the extract in mammalian cell culture. In this work, we identified transcriptome changes after exposure of cultured cells to an extract of the medicinal plant Sarcopoterium spinosum. Gene Set Enrichment Analysis (GSEA) confirmed known anti-inflammatory and anti-cancer activities of the extract and predicted novel biological effects on oxidative phosphorylation and interferon pathways. Experimental validation of these pathways uncovered strong activation of autophagy, including mitophagy, and astounding protection from SARS-CoV-2 infection. Our study shows that gene expression analysis alone is insufficient for predicting biological effects since some of the changes reflect compensatory effects, and additional biochemical tests provide necessary corrections. In conclusion, this study defines the advantages and limitations of an approach towards predicting the biological and medicinal effects of plant extracts based on transcriptome changes caused by these extracts in mammalian cells.


2021 ◽  
Vol 17 ◽  
Author(s):  
Mehul Patel ◽  
Deep Patel ◽  
Umang Shah ◽  
Ashish Patel ◽  
Nilay Solanki ◽  
...  

: Piperine, a bioactive alkaloid of pepper has been considered for its medicinal properties and received significant attention from pharmaceutical scientists for its bioavailability enhancement action and the development of novel formulations. Piperine has shown numerous health effects and therapeutic properties; however, its pharmacological actions are limited due to its poor aqueous solubility. Numerous reports have been published which depict the potential of piperine in pharmaceutical development along with the treatment of various ailments. The present review emphasizes upon the different methods for isolation of piperine from natural resources, synthesis of piperine, chemistry, quality control aspects of piperine in bulk drug as well as in formulation, the usefulness of piperine in pharmaceutical formulations, its biological activities and clinical studies. The detailed review will help researchers to accelerate the transition of this lead molecule from kitchen spices to the clinic.


INDIAN DRUGS ◽  
2012 ◽  
Vol 49 (09) ◽  
pp. 15-22
Author(s):  
M. K Gadhwal ◽  
◽  
S. C Patil ◽  
P Dmello ◽  
U Joshi .

Flavonoids are a group of polyphenolic compounds with multiple biological activities including antioxidant, anti-inflammatory and anti-cancer activities. The reduced bioavailability of flavonoids, however calls for structural modifications. Quercetin possesses multiple hydroxyl groups and an ability to chelate metal ions. Transition metal complexes have shown therapeutic promises in treatment of both inflammation and cancer. The present work describes synthesis of transition metal complexes of quercetin which resulted in the synthesis of the complexes of the type M2L which were characterized by IR and proton NMR. Although anti-oxidant and anti-inflammatory activity of the quercetin-Cu complex was higher than quercetin, the anticancer activity of the quercetin-Zn complex was much higher. A mechanism of action for the same is proposed.


2020 ◽  
Vol 21 (7) ◽  
pp. 512-524
Author(s):  
Sri Krishna Jayadev Magani ◽  
Sri Durgambica Mupparthi ◽  
Bhanu Prakash Gollapalli ◽  
Dhananjay Shukla ◽  
AK Tiwari ◽  
...  

Background: Salidroside is a glucoside of tyrosol found mostly in the roots of Rhodiola spp. It exhibits diverse biological and pharmacological properties. In the last decade, enormous research is conducted to explore the medicinal properties of salidroside; this research reported many activities like anti-cancer, anti-oxidant, anti-aging, anti-diabetic, anti-depressant, anti-hyperlipidemic, anti-inflammatory, immunomodulatory, etc. Objective: Despite its multiple pharmacological effects, a comprehensive review detailing its metabolism and therapeutic activities is still missing. This review aims to provide an overview of the metabolism of salidroside, its role in alleviating different metabolic disorders, diseases and its molecular interaction with the target molecules in different conditions. This review mostly concentrates on the metabolism, biological activities and molecular pathways related to various pharmacological activities of salidroside. Conclusion: Salidroside is produced by a three-step pathway in the plants with tyrosol as an intermediate molecule. The molecule is biotransformed into many metabolites through phase I and II pathways. These metabolites, together with a certain amount of salidroside may be responsible for various pharmacological functions. The salidroside based inhibition of PI3k/AKT, JAK/ STAT, and MEK/ERK pathways and activation of apoptosis and autophagy are the major reasons for its anti-cancer activity. AMPK pathway modulation plays a significant role in its anti-diabetic activity. The neuroprotective activity was linked with decreased oxidative stress and increased antioxidant enzymes, Nrf2/HO-1 pathways, decreased inflammation through suppression of NF-κB pathway and PI3K/AKT pathways. These scientific findings will pave the way to clinically translate the use of salidroside as a multi-functional drug for various diseases and disorders in the near future.


2021 ◽  
Vol 17 ◽  
Author(s):  
Rania Helmy Abd El-Hameed ◽  
Hend Medhat El-Shanbaky ◽  
Mosaad Sayed Mohamed

Background: 2-Furanones attracted great attention due to their biological activities. They also have the ability to convert to several biologically active heterocyclic and non-heterocyclic compounds, especially as anti-cancer agents. Objectives: This research aims to assist in the development process of novel cytotoxic agents through synthesizing certain 2-furanone derivatives, using them as starting materials for the preparation of novel heterocyclic and non-heterocyclic compounds, and then testing the synthesized derivatives for their anti-cancer activities. Methods: All the newly synthesized compounds were fully characterized by elemental analysis, IR, Mass, and 1H-NMR spectroscopy. 18 synthesized compounds were selected by National Cancer Institute (NCI) for testing against 60 cell lines, and the active compound was tested as MAPK14 and VEGFR2-inhibitor using Staurosporine as standard. Results: Compound 3a showed higher activity against several cell lines, including leukemia (SR), Non-Small Cell Lung Cancer (NCI-H460), colon cancer (HCT-116), ovarian cancer (OVCAR-4), renal cancer (786-0, ACHN and UO-31), and finally breast cancer (T-47D). It also had better inhibition activity against MAPK14 than the used reference. Conclusion: Compound 3a has promising anti-cancer activities compared to the used standards and may need further modifications and investigations.


1987 ◽  
Vol 58 (04) ◽  
pp. 1068-1072 ◽  
Author(s):  
P Toulon ◽  
J F Vitoux ◽  
C Leroy ◽  
T Lecomte ◽  
M Roncato ◽  
...  

SummaryWe compared in six patients successively treated with an unfractionated heparin (UFH) and a low molecular weight heparin (LMWH) the variations in plasma anti-Xa activity, measured in a chromogenic assay, during a 36 h constant infusion. The values varied in a wider range during UHF infusion, but remained in the therapeutic range except once in one patient. No circadian rhythm could be demonstrated in our six patients. LMWH infusion yielded very constant anti-Xa circulating activities. In both cases, there were no significant modifications of three proteins with high heparin affinity (antithrombin III, heparin cofactor II, histidine-rich glycoprotein).Our results suggest that the circadian rhythm of the biological activities previously observed in patients treated with constant heparin infusion using clotting method is due to other factors than heparin itself.


2014 ◽  
pp. 98-101
Author(s):  
Thi Bich Hien Le ◽  
Viet Duc Ho ◽  
Thi Hoai Nguyen

Nowadays, cancer treatment has been a big challenge to healthcare systems. Most of clinical anti-cancer therapies are toxic and cause adverse effects to human body. Therefore, current trend in science is seeking and screening of natural compounds which possess antineoplastic activities to utilize in treatment. Uvaria L. - Annonaceae includes approximately 175 species spreading over tropical areas of Asia, Australia, Africa and America. Studies on chemical compositions and pharmacological effects of Uvaria showed that several compound classes in this genus such as alkaloid, flavonoid, cyclohexen derivaties, acetogenin, steroid, terpenoid, etc. indicate considerable biological activities, for example anti-tumor, anti-cancer, antibacterial, antifungal, antioxidant, etc. Specifically, anti-cancer activity of fractions of extract and pure isolated compounds stands out for cytotoxicity against many cancer cell lines. This study provides an overview of anti-cancer activity of Uvaria and suggests a potential for further studies on seeking and developing novel anti-cancer compounds. Key words: Anti-cancer, Uvaria.


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