Posted by admin on Dec 31, 2020 in |
Genus Memecylon belonging to the family Melastomataceae is a large shrub or a small tree native to Western Ghats of India. Memecylon species are reported to show various biological activities and are also used as medication in herpes virus infection. RNases and proteases are involved in the replication of herpes simplex virus (HSV). The present study was taken up to screen RNase and protease (trypsin and thrombin) inhibitors in different solvent extracts of Memecylon species viz., M. umbellatum, M. malabaricum, M. wightii, M. edule and M. talbotianium. The methanol extract of the leaves of Memecylon species was observed to strongly inhibit RNase, trypsin, and thrombin functions in a dose-dependent manner. The percent inhibition of RNase activity ranged from 53-84% in 50 ug/mL of plant extracts. The highest inhibition was observed in M. malabaricum and M. wightii for RNase. Similarly, for trypsin the percent inhibition ranged from 55-68% in 1 mg/mL of plant extracts. Highest inhibition was observed in M. malabaricum, M. wightii, and M. talbotianium. For thrombin the percent...
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Posted by admin on Dec 31, 2020 in |
Plants are the major sources of hepatoprotective drugs and formulations, and this is the reason that their phytoconstituents are in great demand commercially. These drugs act prophylactically for the wellbeing of the liver as well as can cure an ailing liver. The liver is the largest solid organ and gland present in the human body. While it plays a major role in various metabolic reactions of the body, it can get damaged due to various reasons. The reasons can be consumption of excessive alcohol, jaundice, an overdose of allopathic drugs like Paracetamol etc. Lot of scientists have worked to find out the chemical constituents present in the hepatoprotective herbs and their actions on the liver. All the studies carried out by the team of scientists have been compiled in this article; therefore, the present review highlights all the important hepatoprotective herbs, their reported major constituents, and their effect on the liver. The herbs which are included in this article are Silybum marianum (Milk Thistle), Allium sativum (Garlic), Glycyrrhiza glabra...
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Posted by admin on Dec 31, 2020 in |
Cervical cancer is a highly prevalent global disease among females and currently available treatments are nevertheless restricted and have substantial adverse effects. Plants may be a rich source of molecules with therapeutic potentials, such as Campomanesia aureas O. Berg, Myrtaceae, a native species from the South of Brazil with few data regarding its biological effects. In this study, we investigated the chemical composition and antineoplastic potential in-vitro of the essential oil (EO) of C. aureas leaves in human cervical cancer cells (SiHa), as well as its effect in the viability of non-tumoral cells (HaCat). CG-MS analysis reveals that the EO is rich in oxygenated sesquiterpenes and monoterpenes and MTT colorimetric assay shows that it significantly inhibits the viability of the SiHa cell line at different concentrations. Besides, the EO reduced the colony-forming capacity of the tumor cell line, and the ratio between the IC50 values of cell lines demonstrated a promising selectivity index for C. aurea EO. Therefore, the EO could be a potential source of new anticancer...
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Posted by admin on Dec 31, 2020 in |
Objective: The aim of this study was to evaluate the anticancer activity of a series of six structurally related [1, 4]-Benzoquinone monooximes and to investigate structure-activity relationships (SAR) of these compounds. Materials and Method: The mono-oximes obtained by oximination of para-benzoquinones 1-4 had their structures confirmed by ¹H NMR, 13C NMR. The cytotoxic study was assessed by the MTT assay on three tumor cell lines: HL60 (promyelocytic leukemia), NCI-H292 (lung cancer), and MCF-7 (breast adenocarcinoma). Results: Six oximes were synthetized 2 – methyl-[1,4]-benzoquinone oxime tosylate (I), 5-isopropyl-2-mehyl-[1,4]-benzoquinone oxime tosylate (II), 5-isopropyl-5-mehyl-[1,4]-benzoquinone oxime tosylate (III), 5-isopropyl-2-mehyl-[1,4]-benzoquinone oxime (IV), 2,5-dimethyl-[1,4]-benzoquinone oxime tosylate (V), 2-methyl-[1,4]-benzoquinone oxime tosylate (VI). Compounds II to V showed significant activity against all cell lines; while compound I and VI presented low or no activity. Conclusion: These experimental data lead to the conclusion that oximes (II –V) may be used as potential starting structures for the design of novel anticancer...
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Posted by admin on Dec 31, 2019 in |
To analyze the efficacy of topical nepafenac, 0.1% eye drops in the treatment of diabetic macular edema (DME). Method: a prospective interventional study in 14 eyes having center involving DME were taken into consideration. They were administered topical nepafenac eye drops 0.1% thrice daily for 6 months. Their vision and foveal thickness were recorded systematically at the start of the treatment and then at 2nd, 4th, and 6th month follow up. Results: The mean baseline and final Log MAR visual acuity were 0.33 and 0.15, respectively and the mean baseline and final foveal thickness were 450 µm and 290 µm respectively. Conclusion: A statistically significant improvement was noticed in the visual acuity and foveal thickness after the administration of 0.1% of topical nepafenac eye...
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