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| 1 | Antioxidant and antipyretic properties of methanolic extract of Amaranthus spinosus leaves显示文摘Objective:Methanolic extract of Amaranthus spinosus(A.spinosus) leaves was screened for antioxidant and antipyretic activities.Methods:Antioxidant activity was measured by l,l-diphenyl-2-picryl-hydrazile(DPPH) free radical scavenging,superoxide anion radical scavenging,hydroxyl free radical scavenging,nitric oxide radical scavenging,2,2 -azinobis-3- ethylbenzothiazole-6-sulfonic acid(ABTS) radical scavenging assays and total phenolic content was also determined.Antipyretic activity of methanolic extract of A.spinosus was measured by yeast induced pyrexia method at concentration of 200 and 400 mg/kg using paracetamol as standard drug.Results:Methanolic extract of A.spinosus showed potent antioxidant activity.The IC50 value was(87.50±3.52)μg/mL,(98.80±1.40)μg/mL,(106.25±0.20)μg/mL,(88.70±0.62)μg/mL and(147.50±2.61)μg/mL for DPPH,superoxide,hydroxyl,nitric oxide and ABTS radical scavenging activities.Methanolic extract of A spinosus showed significant(P<0.01) antipyretic activity. | Bagepalli Srinivas Ashok Kumar Kuruba Lakshman Jayaveera KN Devangam Sheshadri Shekar Avalakondarayappa Arun Kumar Bachappa Manoj | 2010 | Asian Pacific Journal of Tropical Medicine2010，3，9： | 15 |
| 2 | Pain management in mice using methanol extracts of three plants belongs to family Amaranthaceae显示文摘Objective:To investigate the analgesic activity of methanolic extract of Amaranthus viridis(A. viridis),Amaranthus caudatus(A.caudatus) and Amaranthus spinosus(A.spinosus).Methods:In this study,the analgesic activity of methanol extracts of all three plants at doses of 200 and 400 mg/kg were investigated by acetic acid-induced writhings test,hot plate test and tail immersion test for mice.Results:It was found that all the three plants showed significant pain management effect(P<0.01) at a dose of 400 mg/kg,but showed a less significant effect at a dose of 20 mg/kg in the entire tests used for evaluation of analgesic activities(P<0.05).Conclusions:Methanol extracts of A.viridis,A.caudatus and A.spinosus show potent analgesic activities,and this study provides the scientific proof for their traditional claims. | Ashok Kumar BS Lakshman K Jayaveera KN Vel Murgan C Arun Kumar PA Vinod Kumar R Meghda Hegade Sridhar SM | 2010 | Asian Pacific Journal of Tropical Medicine2010，3，7： | 2 |
| 3 | Quantification of ibuprofen in human plasma by using high throughput liquid chromatography-tandem mass spectrometric method and its applications in pharmacokinetics显示文摘 | Raghunadha RS Sarath chandiran I Jayaveera KN | | 0，，03： | 1 |
| 4 | Liquisolid compacts:A novel approach to enhance bioavailability of poorly soluble drugs显示文摘 | Vijay kumar N Ramarao T Jayaveera K N | 2011 | Int J Pharm Biol Sci2011，1，3： | 1 |
| 5 | Pectin-HPMC E15LV Vs pH sensitive polymer coating films for delayed drug delivery to colon : A comparison of two dissolution models to assess colonic tar- geting performance in-vitru 显示文摘 | Newton A M J Prabakaran L Jayaveera K N | 2012 | International Journal of Applied Research in Natural Products2012，5，3： | 1 |
| 6 | Formulation of unidirectional release buccal patches of carbamazepine and study of permeation through porcine buccal mucosa显示文摘Objective:To achieve transbuccal release of carbamazepine by loading in unidirectional release mucoadhesive buccal patches.Methods:Buccal patches of carbamazepine with unidirectional drug release were prepared using hydroxypropyl methyl cellulose,polyvinyl alcohol,polyvinyl pyrrolidone and ethyl cellulose by solvent casting method.Water impermeable backing layer(Pidilite?Biaxially-oriented polypropylene film)of patches provided unidirectional drug release.They were evaluated for thickness,mass uniformity,surface pH and folding endurance.Six formulations FA2,FA8,FA10,FBI,FB14 and FB16(folding endurance above 250)were evaluated further for swelling studies,ex vivo mucoadhesive strength,ex vivo mucoadhesion time,in vitro drug release,ex vivo permeation,accelerated stability studies and FTIR and XRD spectral studies.Results:The ex vivo mucoadhesion time of patches ranged between 109 min(FA10)to 126 min(FB14).The ex vivo mucoadhesive force was in the range of 0.278 lo 0.479 kg/m/s.The in vitro drug release studies revealed that formulation FA8 released 84%and FB16 released 99.01%of drug in140 min.Conclusions:The prepared unidirectional buccal patches of carbamazepine provided a maximum drug release within specified mucoadhesion period and it indicates a potential alternative drug delivery system for systemic denvery of carbamazepine. | Parthasarathy Govindasamy Bhaskar Reddy Kesavan Jayaveera Korlakunta Narasimha | 2013 | Asian Pacific Journal of Tropical Biomedicine2013，3，12： | 1 |
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