Posted by admin on Apr 30, 2016 in |
Protein glycation is a spontaneous post translational modification of proteins by excess sugars causing formation of advanced glycation end products (AGEs) in diabetic individuals and responsible for diabetes complications. A wide variety of anti-glycating agents have been reported & recently there has been interest in natural products with anti-glycation properties. Momordica charantia L (M. Charantia L) has been used historically for medicinal purposes particularly for treatment of diabetes & cancers. M. Charantia L Extract contains potent antioxidant activity and it can be a useful anti-glycating agent. Material & methods: Human serum albumin was used for in vitro glycation. Various concentrations of extract of M. Charantia L were analyzed. Results: Co-incubation of the M. Charantia L. extract with HSA-fructose mixture intensify the fructose mediated glycation of HSA as indicated by increases fluorescence intensity in tryptophan fluorescence &AGE related fluorescence studies. Conclusion: M. Charantia L. seems to aggravate sugar mediated glycation of the protein and need further studies to pinpoint specific bioactive compounds responsible for the observed...
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Posted by admin on Apr 30, 2016 in |
Objective: To analyze phytochemicals both qualitatively and quantitatively and to estimate in vitro antioxidant activity, total phenolic content and concentration of flavonoids of methanolic extract of leaf, stem and fruit of an important medicinal plant Murraya koenigii Linn. Methods: Phytochemical screening of extracts was carried out. Aluminium chloride colorimetric method was used to estimate TFC (total flavonoid content) and TPC (total phenolic content) was measured by Folin-ciocalteu method. Two different assays- DPPH free radical scavenging and LPO were used for determination of antioxidant activity. Results: Quantitative estimation of primary metabolites showed maximum amount of sugar, starch in stem, while lipid and protein in leaf. The TPC were ranging between 18.4±0.21 to 25.2±0.16 mg GAE/gm DW while TFC were found maximum 13.53±0.16 mg QE/gm DW in leaves. The DPPH radical scavenging capacity was found maximum in leaves (IC50 49.86±1.16) and maximum activity in LPO assay was shown by leaf extract (23.715±1.68 μM MDAg-1DW). Conclusions: These results are suggestive of primary bioactive compounds of commercially importance and also Murraya koenigii Linn...
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Posted by admin on Apr 30, 2016 in |
Senna alata is an important medicinal and ornamental flowering tree, in the subfamily of Caesalpinioideae, which was found in diverse habitat in the tropics. Leaves or sap are used to treat several infections such as skin diseases, bronchitis, asthma and ringworm. The present study was design to investigate for conserve the important medicinal plant by establishing an efficient in vitro seed germination method. The seed germination was gradually decreased by increasing the age of the seeds. The seeds were pretreatment with different chemicals such as, sulphuric acid, hydrochloric acid and distilled water. After pretreatment the seeds were surface sterilized with various concentration of mercuric chloride. The objective of the present study the effect of different pretreatment as in vitro seed germination and seedling development of S. alata Linn. Seed propagation is still used as a specialized tool for breeding and propagation of pathogen-free...
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Posted by admin on Apr 30, 2016 in |
A simple and accurate Reverse Phase High Performance Liquid Chromatography (RP-HPLC) method has been developed for the estimation of ketoprofen in vitro samples and in vivo samples from bulk drug and from administered transdermal dosage form, using Spherosorb S5 ODS of 10cm X 4.6 mm column, (5μm particle size). Mobile phase for in vitro sample analysis and in vivo plasma samples consists of 0.01 M sodium dihydrogen phosphate (pH adjusted to 6.5 with ortho phosphoric acid), methanol, and acetonitrile, 4:3:3 (v/v) respectively. Isocratic elution technique was followed. The flow rate was 0.5ml/min and the detection was monitored out by UV detector at 265nm. The retention time for ketoprofen was found to be 2.982 in in vitro sample and 3.025 min in in vivo sample. Naproxen was used as internal standard for in vivo sample analysis. The proposed method has permitted the quantification of ketoprofen over linearity in the range of 100-1000...
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Posted by admin on Apr 30, 2016 in |
The lectins are glycoproteins or sugar binding proteins of non-immune origin but are barred from sugar binding antibodies and enzymes. Lectins are isolated and purified from seeds of Glycine max by soxhlet extraction and dialysis. These collected crude lectins were centrifuged till pH is shifted downward to optimal pH for coprecipitation. Filtration of the same carried out on a Buchner funnel with a pad of Hiflo Supercel on whatman paper. Galactose was added as a ligand to the mixture kept at 250C for 10-20 min. It formed matrix coprecipitation which was centrifuged to remove additional particulates. Supernatant was removed and retained the galactose lectin coprecipitate which finally yields lectins, further purified by dialysis. Encapsulation by spray drying using maltodextrin and lactose along with the Eudragit S100 targeted the drug moiety to colon. Purified Lectins have the binding property of carbohydrate moieties on the surface of erythrocytes which agglutinate the erythrocytes, these lectins were evaluated by the agglutination test using ‘A’ positive blood group. These lectins showed anticancer activity against...
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