Plumbagin: A potential candidate for future research and development

Author(s):  
Niyatee Thakor ◽  
Bhavyata Janathia

Abstract: Plumbagin has gained a lot of attention in the field of research due to its various therapeutic actions. It is a secondary metabolite obtained from different plant families such as Plumbaginaceae, Droseraceae, and Ebenceae. Various studies on plumbagin reveals that it is a natural gift for mankind in treating chronic diseases like cancer, diabetes, malaria, bacterial infection as well as controlling cardiovascular disease. However, there are several challenges to develop plumbagin as a therapeutic agent. The first and foremost is its limited solubility and oral bioavailability. The second limitation is its toxicity. Plumbagin has a narrow therapeutic window and literature reveals that the compound has moderate toxicity in animals. But data is not sufficient to prove that plumbagin is unsafe for humans. In spite of many therapeutic benefits of Plumbagin, it remains unexploited for mankind. Thus, a systematic review on its toxicity, pharmacology and safety is required to be highlighted. This review work signifies the depth of therapeutic applications proven via research, its different modes of isolation and separation of chemical constituents, and its formulation development attempts. A thorough review of promising therapeutic targets via docking studies is also presented. Different methods used to quantify Plumbagin from plant is reviewed. An overview of attempts to design novel formulations which could enhance its bioavailability is also presented. The review paper will help the scientist to exploit the drug to its optimum which will help to overcome the challenges faced during its design and developmental stages.

Author(s):  
Vijay Kumar

: Mimosa pudica Linn is an integrated part of Traditional Medicines Systems of India, China, Africa, Korea and America. It has been used from centuries in traditional medicines to cure different diseases like fever, diabetes, constipation, jaundice, ulcers, biliousness, and dyspepsia. It is an important ingredient of wide class of herbal formulations. To assess the scientific evidence for therapeutic potential of Mimosa pudica Linn and to identify the gaps for future research. The available information on the ethno-medicinal uses, phytochemistry, pharmacology and toxicology of Mimosa pudica Linn was collected via a library and electronic searches in Sci-Finder, Pub-Med, Science Direct, Google Scholar for the period, 1990 to 2020. In traditional medicinal systems, variety of ethno-medicinal applications of Mimosa pudica Linn has been noticed. Phytochemical investigation has resulted in identification of 40 well known chemical constituents, among which alkaloids, phenols and flavionoids are the predominant groups. The crude extracts and isolates have exhibited a wide spectrum of in vitro and in vivo pharmacological activities including anti-cancer, anti-inflammation, osteoporosis, neurological disorders, hypertension etc.. To quantify the Mimosa pudica Linn and its formulations, analytical techniques like HPLC and HPTLC has shown dominancy with good range of recovery and detection limit. Mimosa pudica Linn is the well-known herb since an ancient time. The pharmacological results supported some of the applications of Mimosa pudica Linn in traditional medicine systems. Perhaps, the predominance of alkaloids, phenols and flavionoids are responsible for the pharmacological activities the crude extracts and isolates of Mimosa pudica Linn. Further, there is need to isolate and evaluate the active chemical constituents of Mimosa pudica Linn having significant medicinal values. In future, it is important to study the exact mechanism associated with the phytochemicals of Mimosa pudica Linn especially on anti-cancer activities. Notably, toxicity studies on Mimosa pudica Linn are limited which are to be explored in future for the safe application of Mimosa pudica Linn and its formulations.


Author(s):  
Subbiah Latha ◽  
Palanisamy Selvamani ◽  
Thangavelu Prabha

: Natural products have a unique place in the healthcare industry. The genus Commiphora emerged as a potential medicinal with huge benefits as evidenced through its use in various traditional and modern systems of medicine. Therefore, we aimed to prepare a concise review on the pharmacological activities and the indigenous uses of various plant species belonging to the genus Commiphora along with the structural information of various active botanical ingredients present in these plants based on the published literatures and scientific reports. To collect the various published literatures on Commiphora in various journals; to study and classify the available information on the pharmacological uses and chemical constituents; and to present the gathered information as a precise review to serve as a potential reference for future research. Pharmacological and phytochemical data on Commiphora plant species were collected from various journals, books, reference materials, websites including scientific databases, etc for compilation. This review article describes the various pharmacological properties of plants of Commiphora species viz., Anti-arthritic and anti-inflammatory, Anti-atherogenic, Antibacterial, Anti-coagulant, Anti-dicrocoeliasis, Anti-epileptic, Anti-fascioliasis, Anti-fungal, Anti-heterophyidiasis, Anti-hyper cholesterolemic, Anti-hyperlipidemic, Anti-hypothyroidism, Anti-obesity, Anti-osteoarthritic, Anti-osteoclastogenesis, Anti-oxidant, Anti-parasitic, Anti-pyretic, Anti-schistosomiasis, Anti-septic, Anti-thrombotic, Anti-ulcer, Cardioprotective, COX enzyme inhibitory, Cytotoxic /Anti-carcinogenic/Anti-cancer, DNA cleavage, Hypotensive, Inhibits lipid peroxidation, Inhibits NO and NO synthase production, Insecticidal, Local anesthetic, Molluscicidal, Smooth muscle relaxant, Tick repellent activities along with toxicity studies. Furthermore, the review also included various secondary metabolites isolated from various species of Commiphora genus along with their chemical structures serve as a ready resource for researchers. We conclude that the plant species belonging to the genus Commiphora possesses abundant pharmacological properties with a huge treasure of diverse secondary metabolites within themselves. This review indicates the necessity of further in-depth research, pre-clinical and clinical studies with Commiphora genus which may help to detect the unidentified potential of the Commiphora plant species.


2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Bharti Patel ◽  
Subrata Mishra ◽  
Indira K. Priyadarsini ◽  
Sirisha L. Vavilala

Abstract Bacteria are increasingly relying on biofilms to develop resistance to antibiotics thereby resulting in their failure in treating many infections. In spite of continuous research on many synthetic and natural compounds, ideal anti-biofilm molecule is still not found thereby warranting search for new class of molecules. The current study focuses on exploring anti-biofilm potential of selenocystine against respiratory tract infection (RTI)-causing bacteria. Anti-bacterial and anti-biofilm assays demonstrated that selenocystine inhibits the growth of bacteria in their planktonic state, and formation of biofilms while eradicating preformed-biofilm effectively. Selenocystine at a MIC50 as low as 42 and 28 μg/mL effectively inhibited the growth of Klebsiella pneumonia and Pseudomonas aeruginosa. The antibacterial effect is further reconfirmed by agar cup diffusion assay and growth-kill assay. Selenocystine showed 30–60% inhibition of biofilm formation in K. pneumonia, and 44–70% in P. aeruginosa respectively. It also distorted the preformed-biofilms by degrading the eDNA component of the Extracellular Polymeric Substance matrix. Molecular docking studies of selenocystine with quorum sensing specific proteins clearly showed that through the carboxylic acid moiety it interacts and inhibits the protein function, thereby confirming its anti-biofilm potential. With further validation selenocystine can be explored as a potential candidate for the treatment of RTIs.


2021 ◽  
pp. bmjsrh-2020-200962
Author(s):  
Kristina Gemzell-Danielsson ◽  
Ali Kubba ◽  
Cecilia Caetano ◽  
Thomas Faustmann ◽  
Eeva Lukkari-Lax ◽  
...  

Universal access to sexual and reproductive health services is essential to facilitate the empowerment of women and achievement of gender equality. Increasing access to modern methods of contraception can reduce the incidence of unplanned pregnancy and decrease maternal mortality. Long-acting reversible contraceptives (LARCs) offer high contraceptive efficacy as well as cost-efficacy, providing benefits for both women and healthcare systems. The levonorgestrel-releasing intrauterine system (LNG-IUS) first became available in 1990 with the introduction of Mirena (LNG-IUS 20), a highly effective contraceptive which can reduce menstrual blood loss and provide other therapeutic benefits. The impact of the LNG-IUS on society has been wide ranging, including decreasing the need for abortion, reducing the number of surgical sterilisation procedures performed, as well as reducing the number of hysterectomies carried out for issues such as heavy menstrual bleeding (HMB). In the context of the COVID-19 pandemic, Mirena can provide a treatment option for women with gynaecological issues such as HMB without organic pathology, minimising exposure to the hospital environment and reducing waiting times for surgical appointments. Looking to the future, research and development in the field of the LNG-IUS continues to expand our understanding of these contraceptives in clinical practice and offers the potential to further expand the choices available to women, allowing them to select the option that best meets their needs.


Plants ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 132
Author(s):  
Nilufar Z. Mamadalieva ◽  
Davlat Kh. Akramov ◽  
Ludger A. Wessjohann ◽  
Hidayat Hussain ◽  
Chunlin Long ◽  
...  

The genus Lagochilus (Lamiaceae) is native to Central, South-Central, and Eastern Asia. It comprises 44 species, which have been commonly used as herbal medicines for the treatments of various ailments for thousands of years, especially in Asian countries. This review aims to summarize the chemical constituents and pharmacological activities of species from the genus Lagochilus to unveil opportunities for future research. In addition, we provide some information about their traditional uses, botany, and diversity. More than 150 secondary metabolites have been reported from Lagochilus, including diterpenes, flavonoids, phenolic compounds, triterpenoids, iridoid glycosides, lignans, steroids, alkaloids, polysaccharides, volatile, non-volatile and aromatic compounds, lipids, carbohydrates, minerals, vitamins, and other secondary metabolites. In vitro and in vivo pharmacological studies on the crude extracts, fractions, and isolated compounds from Lagochilus species showed hemostatic, antibacterial, anti-inflammatory, anti-allergic, cytotoxic, enzyme inhibitory, antispasmodic, hypotensive, sedative, psychoactive, and other activities.


Insects ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 226
Author(s):  
Siying Fu ◽  
Yujie Duan ◽  
Siqi Wang ◽  
Yipeng Ren ◽  
Wenjun Bu

Riptortus pedestris (Hemiptera: Alydidae) is a major agricultural pest in East Asia that causes considerable economic losses to the soybean crop each year. However, the molecular mechanisms governing the growth and development of R. pedestris have not been fully elucidated. In this study, the Illumina HiSeq6000 platform was employed to perform de novo transcriptome assembly and determine the gene expression profiles of this species across all developmental stages, including eggs, first-, second-, third-, fourth-, and fifth-instar nymphs, and adults. In this study, a total of 60,058 unigenes were assembled from numerous raw reads, exhibiting an N50 length of 2126 bp and an average length of 1199 bp, and the unigenes were annotated and classified with various databases, such as the Kyoto Encyclopedia of Genes and Genomes (KEGG), Clusters of Orthologous Groups (COG), and Gene Ontology (GO). Furthermore, various numbers of differentially expressed genes (DEGs) were calculated through pairwise comparisons of all life stages, and some of these DEGs were associated with immunity, metabolism, and development by GO and KEGG enrichment. In addition, 35,158 simple sequence repeats (SSRs) and 715,604 potential single nucleotide polymorphisms (SNPs) were identified from the seven transcriptome libraries of R. pedestris. Finally, we identified and summarized ten wing formation-related signaling pathways, and the molecular properties and expression levels of five wing development-related genes were analyzed using quantitative real-time PCR for all developmental stages of R. pedestris. Taken together, the results of this study may establish a foundation for future research investigating developmental processes and wing formation in hemimetabolous insects and may provide valuable data for pest control efforts attempting to reduce the economic damage caused by this pest.


2016 ◽  
Vol 6 (12) ◽  
pp. 4059-4066 ◽  
Author(s):  
Toby Fountain ◽  
Mark Ravinet ◽  
Richard Naylor ◽  
Klaus Reinhardt ◽  
Roger K Butlin

Abstract The rapid evolution of insecticide resistance remains one of the biggest challenges in the control of medically and economically important pests. Insects have evolved a diverse range of mechanisms to reduce the efficacy of the commonly used classes of insecticides, and finding the genetic basis of resistance is a major aid to management. In a previously unstudied population, we performed an F2 resistance mapping cross for the common bed bug, Cimex lectularius, for which insecticide resistance is increasingly widespread. Using 334 SNP markers obtained through RAD-sequencing, we constructed the first linkage map for the species, consisting of 14 putative linkage groups (LG), with a length of 407 cM and an average marker spacing of 1.3 cM. The linkage map was used to reassemble the recently published reference genome, facilitating refinement and validation of the current genome assembly. We detected a major QTL on LG12 associated with insecticide resistance, occurring in close proximity (1.2 Mb) to a carboxylesterase encoding candidate gene for pyrethroid resistance. This provides another example of this candidate gene playing a major role in determining survival in a bed bug population following pesticide resistance evolution. The recent availability of the bed bug genome, complete with a full list of potential candidate genes related to insecticide resistance, in addition to the linkage map generated here, provides an excellent resource for future research on the development and spread of insecticide resistance in this resurging pest species.


2021 ◽  
Vol 11 ◽  
Author(s):  
Varinder Singh ◽  
Ankita Sood ◽  
Simran Pruthi ◽  
Manjinder Singh ◽  
Balraj Saini ◽  
...  

Background: Cordia myxa L. (CM) is a valuable ethnomedicinal plant from Boraginaceae family. Traditionally, CM parts especially fruits and leaves are used in chest and urinary tract infections, diarrhoea, dysentery, tuberculosis, liver and spleen disorders, chronic fever, malaria etc. Objective: Despite of known importance and uses, CM has gained relatively less attention of researchers and concise reviews revealing the medicinal potential of CM are scanty. The present review summarizes the chemical constituents and biological activities of CM and aims to stimulate future research to develop it as a functional health food. Results: Analysis of literature on CM showed that its fruits are a rich source of nutrients and are frequently employed in wide ailments such as urinary and respiratory tract infections, chronic fever, liver disorders, asthma, used as anthelmintic, diuretic, expectorant and purgative. Scientific studies have shown the antidiabetic, analgesic, anti-inflammatory, anti-cancer, antioxidant, antiplasmodial, hepatoprotective, hypotensive, antiulcer and antimicrobial activities of CM. More than 45 compounds belonging to carbohydrates, steroids, carotenoids, phenols, flavonoids and alkaloids have been reported from various parts of CM. Conclusion: Systematic preclinical studies support the traditional claims of CM. The analysis of available literature showed that CM could be developed as a drug. Further, studies such as detailed pharmacological and toxicological evaluation, isolation of bioactive compounds, quantitative phytochemistry and structure activity relationship are scanty and thus, crucial to be addressed for uplifting the scientific value of this revered medicinal plant.


Author(s):  
Stefan Wötzel ◽  
Marco Andrello ◽  
Maria Albani ◽  
Marcus Koch ◽  
George Coupland ◽  
...  

Many model organisms have obtained a prominent status due to an advantageous combination of their life-history characteristics, genetic properties and also practical considerations. In non-crop plants, Arabidopsis thaliana is the most renowned model and has been used as study system to elucidate numerous biological processes at the molecular level. Once a complete genome sequence was available, research has markedly accelerated and further established A. thaliana as the reference to stimulate studies in other species with different biology. Within the Brassicaceae family, the arctic-alpine perennial Arabis alpina has become a model complementary to A. thaliana to study life-history evolution and ecological genomics in harsh environments. In this review, we provide an overview of the properties that facilitated the rapid emergence of A. alpina as a plant model. We summarize the evolutionary history of A. alpina, including the diversification of its mating system, and discuss recent progress in the molecular dissection of developmental traits that are related to its perennial life history and environmental adaptation. We indicate open questions from which future research might be developed in other Brassicaceae species or more distantly related plant families.


2020 ◽  
Vol 11 (4) ◽  
pp. 7937-7943
Author(s):  
Sugumar R ◽  
Saravana D ◽  
Pavithra N ◽  
Suresh Raj V ◽  
Sekar Babu M ◽  
...  

The study aims to investigate the Phytochemical Composition, Anti-oxidant and Anticancer properties of methanolic extract of Phyllanthus niruri Schumach & Thonn And the Protein Modelling and drug docking. The research deals with the methanolic extraction and phytochemical screening, determination of total phenolic and flavonoids contents and anti-oxidant assay. By performing GC-MS characterisation, various active metabolites are analysed. Thin-layer chromatography profiling of the Phyllanthus niruri methanolic extract was performed. The IC50 of the Phyllanthus niruri methanolic extract against PA-1 Cell lines(Ovarian cancer) was calculated. Docking studies also performed for antitumor activity by using Bioinformatics and Cheminformatics software on corilagin and cisplatin. The results suggested that the methanolic extract of Phyllanthus niruri leaves has the anticancer cancer effect on the ovarian cell line. The docking studies also performed that Corilagin interaction with T.F. receptor shows a high binding score when compared to cisplatin. Our future research can be done in this area to optimise anticancer activity efficacy. Our results can be further tested Clinico-pharmacologically to prove its efficiency in human beings.


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