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RISS 인기검색어
- 검색키워드
- 저자 : Thalapaneni (검색결과 4 건)
- 무료
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Antioxidant Activity of Talinum portulacifolium (Forssk) Leaf Extracts
Thalapaneni Nageswara Rao,Chidambaram Kumarappan,Sabapathi Mohana Lakshmi,Subhash C Mandal 경희대학교 융합한의과학연구소 2008 Oriental Pharmacy and Experimental Medicine Vol.8 No.4
The aim of the study is to investigate the antioxidant activity through, reducing power, 2, 2- diphenyl-1-picryl hydrazyl radical (DPPH), nitric oxide radical (NO), superoxide radical, hydrogen peroxide radical (H2O2) scavenging activity and the amount of total phenolic compounds of chloroform, ethyl acetate, methanol and aqueous extracts of the leaves of Talinum portulacifolium. Chloroform extract of leaves of T. portulacifolium showed highest antioxidant activity, with a direct relationship between activity and concentration of extracts (15 - 240 μg/mL). Among all the extracts, the highest amount of the total polyphenolic compounds was found in the chloroform extract. Chloroform extract of T. portulacifolium showed an important free radical scavenging activity towards the DPPH, NO, Superoxide and H2O2 radicals, with IC50 values of 133.26, 165.75, 156.34 and 135.29 μg/mL, respectively. In the lipid peroxidation assay, extracts of chloroform and ethyl acetate showed a remarkable inhibitory activity. The extracts showed significant activity in all the experiments but lower than the standard antioxidant, ascorbic acid. The aim of the study is to investigate the antioxidant activity through, reducing power, 2, 2- diphenyl-1-picryl hydrazyl radical (DPPH), nitric oxide radical (NO), superoxide radical, hydrogen peroxide radical (H2O2) scavenging activity and the amount of total phenolic compounds of chloroform, ethyl acetate, methanol and aqueous extracts of the leaves of Talinum portulacifolium. Chloroform extract of leaves of T. portulacifolium showed highest antioxidant activity, with a direct relationship between activity and concentration of extracts (15 - 240 μg/mL). Among all the extracts, the highest amount of the total polyphenolic compounds was found in the chloroform extract. Chloroform extract of T. portulacifolium showed an important free radical scavenging activity towards the DPPH, NO, Superoxide and H2O2 radicals, with IC50 values of 133.26, 165.75, 156.34 and 135.29 μg/mL, respectively. In the lipid peroxidation assay, extracts of chloroform and ethyl acetate showed a remarkable inhibitory activity. The extracts showed significant activity in all the experiments but lower than the standard antioxidant, ascorbic acid.
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Thalapaneni, Nageswara Rao,Sabapathi, Mohana Lakshmi,Ansari, Faraz Raza,Mandal, Subhash C. 경희한의학연구센터 2011 Oriental Pharmacy and Experimental Medicine Vol.11 No.3
The aim of this study is to evaluate antidiabetic and antioxidant effects of methanol extract of $Talinum$ $portulacifolium$ (FORSSK) leaves (Portulacaceae) (METP) in streptozotocin induced diabetic rats. The acute and sub acute antihyperglycemic effect of two different doses (200 and 400 mg/kg,) of METP were investigated. Blood glucose level, serum insulin level, lipid profiles and biomarker enzymes were evaluated in normal and diabetic rats. Liver glycogen content, kidney and liver antioxidant enzymes were evaluated. Supplementation of METP by oral gavage significantly reduces the fasting blood glucose level. This supplementation significantly increases the glycogen level in the liver ($32.33{\pm}1.453$ mg/gm) as compare to diabetic control group ($5.66{\pm}0.881$ mg/gm) ($p$ <0.001). Elevated serum glutamate oxaloacetate transaminase (SGOT), glutamate pyruvate transaminase (SGPT), and alkaline phosphatase (SALP) were decreased significantly by the treatment of METP with respect to diabetic group. The antioxidant activity was studied in liver and kidney tissues by measuring malondialdehyde (MDA), reduced glutathione (GSH) and catalase levels. In the METP treated groups, the HDL/LDL ratio was improved and cholesterol and triglycerides levels also decreased significantly. Histopathological studies of the pancreas of these animals showed comparable regeneration by METP. Glibenclamide was used as a standard at a dose of 0.5 mg/kg p.o.
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Antioxidant Activity of Talinum portulacifolium (Forssk) Leaf Extracts
Rao, Thalapaneni Nageswara,Kumarappan, Chidambaram,Lakshmi, Sabapathi Mohana,Mandal, Subhash C Kyung Hee Oriental Medicine Research Center 2008 Oriental pharmacy and experimental medicine Vol.8 No.4
The aim of the study is to investigate the antioxidant activity through, reducing power, 2, 2-diphenyl-1-picryl hydrazyl radical (DPPH), nitric oxide radical (NO), superoxide radical, hydrogen peroxide radical ($H_2O_2$) scavenging activity and the amount of total phenolic compounds of chloroform, ethyl acetate, methanol and aqueous extracts of the leaves of Talinum portulacifolium. Chloroform extract of leaves of T. portulacifolium showed highest antioxidant activity, with a direct relationship between activity and concentration of extracts ($15-240\;{\mu}g/mL$). Among all the extracts, the highest amount of the total polyphenolic compounds was found in the chloroform extract. Chloroform extract of T. portulacifolium showed an important free radical scavenging activity towards the DPPH, NO, Superoxide and $H_2O_2$ radicals, with $IC_{50}$ values of 133.26, 165.75, 156.34 and $135.29\;{\mu}g/mL$, respectively. In the lipid peroxidation assay, extracts of chloroform and ethyl acetate showed a remarkable inhibitory activity. The extracts showed significant activity in all the experiments but lower than the standard antioxidant, ascorbic acid.
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Nageswara Rao Thalapaneni,Mohana Lakshmi Sabapathi,Faraz Raza Ansari,Subhash C. Mandal 경희대학교 융합한의과학연구소 2011 Oriental Pharmacy and Experimental Medicine Vol.11 No.3
The aim of this study is to evaluate antidiabetic and antioxidant effects of methanol extract of Talinum portulacifolium (FORSSK) leaves (Portulacaceae) (METP) in streptozotocin induced diabetic rats. The acute and sub acute antihyperglycemic effect of two different doses (200 and 400 mg/kg,) of METP were investigated. Blood glucose level, serum insulin level, lipid profiles and biomarker enzymes were evaluated in normal and diabetic rats. Liver glycogen content, kidney and liver antioxidant enzymes were evaluated. Supplementation of METP by oral gavage significantly reduces the fasting blood glucose level. This supplementation significantly increases the glycogen level in the liver (32.33±1.453 mg/gm) as compare to diabetic control group (5.66±0.881 mg/gm) (p<0.001). Elevated serum glutamate oxaloacetate transaminase (SGOT), glutamate pyruvate transaminase (SGPT), and alkaline phosphatase (SALP) were decreased significantly by the treatment of METP with respect to diabetic group. The antioxidant activity was studied in liver and kidney tissues by measuring malondialdehyde (MDA), reduced glutathione (GSH) and catalase levels. In the METP treated groups, the HDL/LDL ratio was improved and cholesterol and triglycerides levels also decreased significantly. Histopathological studies of the pancreas of these animals showed comparable regeneration by METP. Glibenclamide was used as a standard at a dose of 0.5 mg/kg p.o
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