active components
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Author(s):  
Ana Maria Mesa-Vanegas ◽  
◽  
Esther Julia Naranjo-Gomez ◽  
Felipe Cardona ◽  
Lucia Atehortua-Garces ◽  
...  

Solanum nudum Dunal (Solanaceae) is most commonly known and used by the population of the colombian Pacific coast as an antimalarial treatment. This article study into optimization and quantitative analysis of compounds steroidal over time of development of this species when grown in vitro and wild. A new steroidal compound named SN6 was elucidated by NMR and a new method of quantification of seven steroidal compounds (Diosgenone DONA and six steroids SNs) using HPLC-DAD-MS in extracts of cultures in vitro and wild was investigated. Biology activity of extracts was found to a range of antiplasmodial activity in FCB2 and NF-54 with inhibitory concentration (IC50) between (17.04 -100 μg/mL) and cytotoxicity in U-937 of CC50 (7.18 -104.7 μg/mL). This method creates the basis for the detection of seven sterols antiplasmodial present in extracts from S. nudum plant as a quality parameter in the control and expression of phytochemicals.


2022 ◽  
Vol 7 (2) ◽  
pp. 58-64
Author(s):  
Michele Zocchi

Regenerative Medicine and Surgery is a rapidly expanding branch of translational research in tissue engineering, cellular and molecular biology. To date, the methods to improve cell intake, survival and isolation need to comply with a complex and still unclear regulatory frame, becoming everyday more restrictive and often limiting effectiveness and outcome of the therapeutic choices. Thus, the author developed a novel regenerative strategy, based on the synergic action of several bio-active components, called the Bio-Active Composite Therapies (BACTs) to improve grafted cells intake and survival in total compliance with the legal and ethical limits of the current regulatory frame. The rationale at the origin of this new technology is based on the evidence that cells need supportive substrate to survive in vitro and this observation, applying the concept of translational medicine, is true also in vivo. Many different sources have been used in the past for MSCs, molecules and growth factors (GF) isolation and extraction, but the Adipose Tissue and its Stromal Vascular Fraction (SVF) definitely remains the most valuable, abundant, safe and reliable. Bio-Active Composite Mixtures (BACMs) are tailor-made injectable “cocktails” containing several bio-active components to support cells survival and induce a strong regenerative response in vivo by stimulating the recipient site to act as an in-situ real Bioreactor. In this article, the author analyze the main causes of cell’s death and the strategies for preventing it, and outline all the technical steps for preparing the main components of BACMs and the different mixing modalities to obtain the most efficient regenerative action on different clinical and pathological conditions in several surgical specialties. Orthopedic Surgery is definitely the one that most can benefit of these new therapeutic strategies. The final part of this work is anticipating the logical and sequential evolution toward other fundamental technical steps for further supporting and enhancing the most efficient regenerative activity.


2022 ◽  
Vol 8 (4) ◽  
pp. 248-253
Author(s):  
Aarti Sangray ◽  
Ajeet Pal Singh ◽  
Amar Pal Singh

To evaluate the activity of Ethanolic and Aqueous extracts of leaves of against three fungal strains i.e. MTCC3814, and Candida tropicalis MTCC9038 in-vitro.Phytochemical analysis of belonging to family brassicacaea was examined using Ethanolic and Aqueous extracts. Ethanolic and Aqueous extracts of leaves of were investigated individually for antifungal activity by Agar well diffusion method. Both the extracts were tested against selected fungal strains i.e. and to find the inhibitory activities of fungal growth at the dose level of 50 and 100 μg/ml.The phytochemical analysis of ethanolic and aqueous extracts confirmed the presence of phenolic compounds, glycosides, tannins, carbohydrates, proteins, amino acids, tannins, reducing suger, non-reducing suger and inorganic compounds such as calcium, magnesium, iron, carbonate & sulphates. Ethanolic extract of showed considerably high antifungal activities against selected microorganisms than aqueous extract.Although the active components were not isolated but antifungal active plant principles such as flavonoids, glycosides and tannins were observed in the extract. Ethanolic extract of possess effective antifungal properties for selected fungal strains i.e.


2022 ◽  
Author(s):  
Vitaliy V. Chelnokov ◽  
Elena Zabolotnaya ◽  
Aleksey V. Matasov ◽  
Anna S. Makarova ◽  
Andrey N. Glushko

This research proposed the use of one of the most effective complexons – oxyethylidenediphosphonic acid, namely its derivative compound – phenyldiacetic acid,for the active sorption matrices of humus of mineral origin. The application of active components that stimulate plant growth and photosynthesis processes in hybrid preparations during reclamation were also proposed. Keywords: recultivation of landfill, plant growth stimulation, phytoremediation


Processes ◽  
2022 ◽  
Vol 10 (1) ◽  
pp. 145
Author(s):  
Yiwei Luo ◽  
Yonglong Li ◽  
Conghui Wang ◽  
Jing Wang ◽  
Wenming Liu ◽  
...  

Copper catalysts have been extensively studied for CO oxidation at low temperatures. Previous findings on the stability of such catalysts, on the other hand, revealed that they deactivated badly under extreme circumstances. Therefore, in this work, a series of KCC−1-supported copper oxide catalysts were successfully prepared by impregnation method, of which 5% CuO/KCC−1 exhibited the best activity: CO could be completely converted at 120 °C. The 5% CuO/KCC−1 catalyst exhibited better thermal stability, which is mainly attributed to the large specific surface area of KCC−1 that facilitates the high dispersion of CuO species, and because the dendritic layered walls can lengthen the movement distances from particle-to-particle, thus helping to slow down the tendency of active components to sinter. In addition, the 5% CuO/KCC−1 has abundant mesoporous and surface active oxygen species, which are beneficial to the mass transfer and promote the adsorption of CO and the decomposition of Cu+–CO species, thus improving the CO oxidation performance of the catalyst.


Author(s):  
Matías D. Ferretti ◽  
María Victoria Rodriguez ◽  
Anabela Ferretti ◽  
Isabel Nocito ◽  
Gabriel R. Bettucci ◽  
...  

2022 ◽  
Vol 12 ◽  
Author(s):  
Yue Wang ◽  
Yan Tong ◽  
Oluwaniyi Isaiah Adejobi ◽  
Yuhua Wang ◽  
Aizhong Liu

Dendrobium officinale Kimura et Migo is an important epiphytic plant, belonging to the Orchidaceae family. There are various bioactive components in D. officinale plants, mainly including polysaccharides, alkaloids, and phenolic compounds. These compounds have been demonstrated to possess multiple functions, such as anti-oxidation, immune regulation, and anti-cancer. Due to serious shortages of wild resources, deterioration of cultivated germplasm and the unstable quality of D. officinale, the study has been focused on the biosynthetic pathway and regulation mechanisms of bioactive compounds. In recent years, with rapid developments in detection technologies and analysis tools, omics research including genomics, transcriptomics, proteomics and metabolomics have all been widely applied in various medicinal plants, including D. officinale. Many important advances have been achieved in D. officinale research, such as chromosome-level reference genome assembly and the identification of key genes involved in the biosynthesis of active components. In this review, we summarize the latest research advances in D. officinale based on multiple omics studies. At the same time, we discuss limitations of the current research. Finally, we put forward prospective topics in need of further study on D. officinale.


2022 ◽  
Vol 2022 ◽  
pp. 1-17
Author(s):  
Zhihui Cai ◽  
Huajun Wang ◽  
Jun Jiang ◽  
Shichang Xiao ◽  
Jianpeng Xiao ◽  
...  

Osteoporosis is a degenerative disease that endangers human health. At present, chemical drugs used for osteoporosis have serious side effects. Therefore, it is valuable to search herbs with high safety and good curative effect in antiosteoporosis. Erzhi formula (EZF), an ancient classic compound, has been reported to have a beneficial effect in antiosteoporosis, but its mechanism is unclear. In this paper, the active compounds of EZF were found in Systems Pharmacology Database, and gene targets related to osteoporosis were obtained in GeneCards. The GO functional and KEGG pathway enrichment analysis were performed by Metascape. The network of “components-targets-signal pathway” was constructed by Cytoscape. Next, molecular docking between the active components and hub genes related to the PI3K-Akt signaling pathway was conducted by Autodock. In the verification experiment, the zebrafish induced by prednisolone (PNSL) was used to reproduce glucocorticoid-induced osteoporosis (GIOP) model, and then the reversal effects of EZF were systematically evaluated according to the behavior, skull staining area, bone mineralization area (BMA), average optical density (AOD), and cumulative optical density (COD). Finally, it was shown that 24 components in EZF could regulate 39 common gene targets to exert antiosteoporosis effect. Besides, the main regulatory mechanisms of EZF were 4 signaling pathways: PI3K-Akt, JAK-STAT, AGE-RAGE, and cancer pathway. In PI3K-Akt signaling pathway, wedelolactone, dimethyl wedelolactone, specnuezhenide, ursolic acid, acacetin, beta-sitosterol, apigenin, and kaempferol can bind tightly with EGF, IL-2, and IL-4 genes. Compared with the model group, the moving distance, swimming speed, and cumulative swimming time of zebrafish in EZF group were significantly increased ( P < 0.05 ). Meanwhile, the BMA and COD of zebrafish were significantly improved after the intervention of EZF ( P < 0.05 ). In summary, the 24 components of EZF exert their antiosteoporosis effects by regulating 39 related gene targets, among which the PI3K signaling pathway is crucial. EZF can promote bone formation and reversed GIOP through “multicomponent/multitarget/multipathway” and the medium dose of EZF may be the most suitable concentration for the treatment of GIOP in zebrafish model.


2022 ◽  
Vol 8 ◽  
Author(s):  
Huining Dai ◽  
Shuai Lv ◽  
Zi'an Qiao ◽  
Kaiyu Wang ◽  
Xipeng Zhou ◽  
...  

The sunflower (Helianthus annuus L.) calathide is gradually used as an alternative treatment for hyperuricemia; nevertheless, evidence regarding its main components and therapeutic capacity for urate nephropathy is lacking. Identification of sunflower calathide aqueous extract (SCE) was rapidly done by UPLC-ESI-Q-Orbitrap, and 32 water-soluble compounds with a comprehensive score &gt;80 were discovered. Besides, yeast extract was administrated to induce high UA levels and hyperuricemic renal injury. We found that SCE treatment not only decreased UA levels to a comparable degree as allopurinol and benzbromarone, but also reduced the BUN levels and participated in kidney injury repair induced by uric acid. Moreover, it regulated the expression of URAT1 and ABCG2, especially inhibiting the GLUT9 in the normal kidney. Results were multifacetedly evaluated with a view to suggesting a possible mechanism of action as compared with those of allopurinol and benzbromarone by western blotting, H&amp;E staining, and immunohistochemistry. However, the H&amp;E staining showed histological changes in model, benzbromarone, and allopurinol groups rather than SCE treatments, and at the same time, the uric acid was identified as a cause of renal damage. The antiinflammatory effects and the regulations of COX-2/PGE2 signaling pathway were revealed on the LPS-induced RAW264.7 cells, indicating that the SCE not only increased cellular proliferation but also downregulated the COX-2, PGE2, NO, and IFN-γ cytokines in the RAW264.7 cells. To conclude, the SCE acts on urate transporters and contributes to prevent urate nephropathy via alleviating inflammatory process involving COX-2/PGE2 signaling pathway. It is available to develop SCE as food supplemental applications for hyperuricemia and nephritic inflammation.


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