Cargando…
Modulation of ionizing radiation induced oxidative imbalance by semi-fractionated extract of Piper betle: An in vitro and in vivo assessment
The study was planned to evaluate modulatory effect of aqueous extract of Piper betle leaf (PBL) on ionizing radiation mediated oxidative stress leading to normal tissues damage during radiotherapy and other radiation exposures. The total polyphenols and flavonoids known as free radical scavenger (c...
Autores principales: | , , , , , |
---|---|
Formato: | Texto |
Lenguaje: | English |
Publicado: |
Landes Bioscience
2010
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2835888/ https://www.ncbi.nlm.nih.gov/pubmed/20716927 |
_version_ | 1782178672527015936 |
---|---|
author | Verma, Savita Gupta, Manju Lata Dutta, Ajaswrata Sankhwar, Sanghmitra Shukla, Sandeep Kumar Flora, Swaran J.S |
author_facet | Verma, Savita Gupta, Manju Lata Dutta, Ajaswrata Sankhwar, Sanghmitra Shukla, Sandeep Kumar Flora, Swaran J.S |
author_sort | Verma, Savita |
collection | PubMed |
description | The study was planned to evaluate modulatory effect of aqueous extract of Piper betle leaf (PBL) on ionizing radiation mediated oxidative stress leading to normal tissues damage during radiotherapy and other radiation exposures. The total polyphenols and flavonoids known as free radical scavenger (chelators) were measured in the extract. To ascertain antioxidant potential of PBL extract, we studied free radical scavenging, metal chelation, reducing power, lipid peroxidation inhibition and ferric reducing antioxidant properties (FRAP ) using in vitro assays. Mice were exposed to varied radiation doses administered with the same extract prior to irradiation to confirm its oxidative stress minimizing efficacy by evaluating ferric reducing ability of plasma, reduced glutathione, lipid peroxidation and micro-nuclei frequency. PBL extract was effective in scavenging DPPH (up to 92% at 100 µg/ml) and superoxide radicals (up to 95% at 80 µg/ml), chelated metal ions (up to 83% at 50 µg/ml) and inhibited lipid peroxidation (up to 45.65% at 500 µg/ml) in a dose dependant manner using in vitro model. Oral administration of PBL extract (225 mg/kg body weight) 1 hr before irradiation in mice significantly enhanced (p < 0.01) radiation abated antioxidant potential of plasma and GSH level in all the observed organs. The treatment with extract effectively lowered the radiation induced lipid peroxidation at 24 hrs in all the selected organs with maximum inhibition in thymus (p < 0.01). After 48 hrs, lipid peroxidation was maximally inhibited in the group treated with the extract. Frequency of radiation induced micronucleated cells declined significantly (34.78%, p < 0.01) at 24 hrs post-irradiation interval by PBL extract administration. The results suggest that PBL extract has high antioxidant potential and relatively non-toxic and thus could be assertively used to mitigate radiotherapy inflicted normal tissues damage and also injuries caused by moderate doses of radiation during unplanned exposures. |
format | Text |
id | pubmed-2835888 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2010 |
publisher | Landes Bioscience |
record_format | MEDLINE/PubMed |
spelling | pubmed-28358882011-01-01 Modulation of ionizing radiation induced oxidative imbalance by semi-fractionated extract of Piper betle: An in vitro and in vivo assessment Verma, Savita Gupta, Manju Lata Dutta, Ajaswrata Sankhwar, Sanghmitra Shukla, Sandeep Kumar Flora, Swaran J.S Oxid Med Cell Longev Research Paper The study was planned to evaluate modulatory effect of aqueous extract of Piper betle leaf (PBL) on ionizing radiation mediated oxidative stress leading to normal tissues damage during radiotherapy and other radiation exposures. The total polyphenols and flavonoids known as free radical scavenger (chelators) were measured in the extract. To ascertain antioxidant potential of PBL extract, we studied free radical scavenging, metal chelation, reducing power, lipid peroxidation inhibition and ferric reducing antioxidant properties (FRAP ) using in vitro assays. Mice were exposed to varied radiation doses administered with the same extract prior to irradiation to confirm its oxidative stress minimizing efficacy by evaluating ferric reducing ability of plasma, reduced glutathione, lipid peroxidation and micro-nuclei frequency. PBL extract was effective in scavenging DPPH (up to 92% at 100 µg/ml) and superoxide radicals (up to 95% at 80 µg/ml), chelated metal ions (up to 83% at 50 µg/ml) and inhibited lipid peroxidation (up to 45.65% at 500 µg/ml) in a dose dependant manner using in vitro model. Oral administration of PBL extract (225 mg/kg body weight) 1 hr before irradiation in mice significantly enhanced (p < 0.01) radiation abated antioxidant potential of plasma and GSH level in all the observed organs. The treatment with extract effectively lowered the radiation induced lipid peroxidation at 24 hrs in all the selected organs with maximum inhibition in thymus (p < 0.01). After 48 hrs, lipid peroxidation was maximally inhibited in the group treated with the extract. Frequency of radiation induced micronucleated cells declined significantly (34.78%, p < 0.01) at 24 hrs post-irradiation interval by PBL extract administration. The results suggest that PBL extract has high antioxidant potential and relatively non-toxic and thus could be assertively used to mitigate radiotherapy inflicted normal tissues damage and also injuries caused by moderate doses of radiation during unplanned exposures. Landes Bioscience 2010 /pmc/articles/PMC2835888/ /pubmed/20716927 Text en © 2010 Landes Bioscience |
spellingShingle | Research Paper Verma, Savita Gupta, Manju Lata Dutta, Ajaswrata Sankhwar, Sanghmitra Shukla, Sandeep Kumar Flora, Swaran J.S Modulation of ionizing radiation induced oxidative imbalance by semi-fractionated extract of Piper betle: An in vitro and in vivo assessment |
title | Modulation of ionizing radiation induced oxidative imbalance by semi-fractionated extract of Piper betle: An in vitro and in vivo assessment |
title_full | Modulation of ionizing radiation induced oxidative imbalance by semi-fractionated extract of Piper betle: An in vitro and in vivo assessment |
title_fullStr | Modulation of ionizing radiation induced oxidative imbalance by semi-fractionated extract of Piper betle: An in vitro and in vivo assessment |
title_full_unstemmed | Modulation of ionizing radiation induced oxidative imbalance by semi-fractionated extract of Piper betle: An in vitro and in vivo assessment |
title_short | Modulation of ionizing radiation induced oxidative imbalance by semi-fractionated extract of Piper betle: An in vitro and in vivo assessment |
title_sort | modulation of ionizing radiation induced oxidative imbalance by semi-fractionated extract of piper betle: an in vitro and in vivo assessment |
topic | Research Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2835888/ https://www.ncbi.nlm.nih.gov/pubmed/20716927 |
work_keys_str_mv | AT vermasavita modulationofionizingradiationinducedoxidativeimbalancebysemifractionatedextractofpiperbetleaninvitroandinvivoassessment AT guptamanjulata modulationofionizingradiationinducedoxidativeimbalancebysemifractionatedextractofpiperbetleaninvitroandinvivoassessment AT duttaajaswrata modulationofionizingradiationinducedoxidativeimbalancebysemifractionatedextractofpiperbetleaninvitroandinvivoassessment AT sankhwarsanghmitra modulationofionizingradiationinducedoxidativeimbalancebysemifractionatedextractofpiperbetleaninvitroandinvivoassessment AT shuklasandeepkumar modulationofionizingradiationinducedoxidativeimbalancebysemifractionatedextractofpiperbetleaninvitroandinvivoassessment AT floraswaranjs modulationofionizingradiationinducedoxidativeimbalancebysemifractionatedextractofpiperbetleaninvitroandinvivoassessment |