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Antioxidant and protective effects of Amrit Nectar tablets on adriamycin- and cisplatin-induced toxicities
Chandradhar Dwivedi1, Puja Agrawal, Karthika Natarajan
1South Dakota State University, College of Pharmacy, Brookings, SD 57007, USA. Chandradhar.Dwivedi@sdstate.edu
Objectives:
Maharishi herbal food supplements have been shown to inhibit the growth of mammary tumors and reduce free radical-mediated injuries. The purpose of this investigation is to evaluate the effects of aqueous and alcoholic extracts of Amrit Nectar tablets on rat liver microsomal lipid peroxidation and compare to other antioxidants. The protective effects of dietary Amrit Nectar tablets (MA-7; containing 38 herbs) on cisplatin-induced changes in glutathione (GSH) and glutathione-S-transferase (GST) activity in rat liver and kidney, and Adriamycin (Pharmacia S.p.A, Milan, Italy)-induced mortalities in mice were also investigated.
Results:
Both aqueous and alcoholic extracts of MA-7 were more potent than other antioxidants tested under our experimental conditions. Adriamycin (15 mg/kg, intraperitoneally) caused 60% mortality during the period of 4 weeks in CDF1 mice. Dietary MA-7 (0.7%) treatment decreased the mortality to 20%. Dietary MA-7 (0.7%) supplementation with cisplatin treatment reversed the effects of cisplatin on liver and kidney GSH and GST activity.
Conclusions:
These results indicate that MA-7 is a powerful antioxidant. MA-7 supplementation with Adriamycin and cisplatin treatment may protect against their toxicities.
Insights
Amrit Nectar tablets (MA-7) demonstrate potent antioxidant properties, significantly reducing mortality from Adriamycin and protecting against cisplatin toxicity in preclinical models. This herbal supplement shows promise as a protective agent against drug-induced injuries.
Area of Science:
- Herbal Medicine
- Pharmacology
- Biochemistry
Background:
- Maharishi herbal supplements, including Amrit Nectar tablets (MA-7), have demonstrated efficacy in inhibiting tumor growth and mitigating oxidative stress.
- Lipid peroxidation and alterations in glutathione (GSH) and glutathione-S-transferase (GST) activity are key indicators of cellular damage.
- Adriamycin and cisplatin are chemotherapeutic agents known for their significant toxicities.
Purpose of the Study:
- To evaluate the antioxidant capacity of Amrit Nectar tablets (MA-7) by assessing their effects on rat liver microsomal lipid peroxidation.
- To compare the efficacy of MA-7 extracts with other known antioxidants.
- To investigate the protective effects of MA-7 against Adriamycin-induced mortality and cisplatin-induced biochemical changes in rat liver and kidney.
Main Methods:
- Aqueous and alcoholic extracts of MA-7 were prepared and tested for antioxidant potency.
- Lipid peroxidation assays were conducted using rat liver microsomes.
- Mice were treated with Adriamycin to assess mortality rates, with and without MA-7 supplementation.
- Rats were administered cisplatin, and subsequent changes in liver and kidney GSH and GST activity were measured, with and without MA-7 supplementation.
Main Results:
- Both aqueous and alcoholic extracts of MA-7 exhibited superior antioxidant activity compared to other tested antioxidants.
- MA-7 supplementation (0.7% dietary) reduced Adriamycin-induced mortality in mice from 60% to 20%.
- Dietary MA-7 supplementation reversed the detrimental effects of cisplatin on GSH and GST activity in rat liver and kidney.
Conclusions:
- MA-7 possesses significant antioxidant properties, acting as a powerful protective agent.
- Supplementation with MA-7 may offer protection against the toxic side effects of chemotherapeutic agents like Adriamycin and cisplatin.
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